US2260799A - Ironing apparatus - Google Patents

Description

Oct, 28, 1941. T. R. BUSH IRONING APPARATUS Filed Sept. 25, 1937 '7 Sheets-Sheet l [N VENTOR ficaZa re 75. 115

Oct. 28,1941.

T. R. BUSH IRONING APPARATUS Filed Sept. 25, 193"! 7 Sheets-Sheet 2 I Wqad'ore mgmmu T. R. BUSH IRONING APPARATUS Filed Sept. 25, 1937 Sheets-Sheet 3 IN VENTOR i 1 7Zea27ar 717,232.51}. v

Oct. 2-8, 1941. T. R. BUSH 2,260,199

IRONYING APPARATUS Filed Sept. 25 193'? 7 Sheets-$hee s [N VENTOR Tfizddare TORNE Y Oct. 28, 1941. 11R. BUSH IIRONING APPARATUS Filed Sept. 25, 1957 '7 SheetsSheet 6 11v VENTOR Oct. 28, 1941. T, R, BUSH momma AIPARATUS Filed Sept.- 25, 1957 7 Sheets-Sheet 7 M T m V N 1 Jan? 77? 511.5% 00% M RNEY matic resetting of I Patented Oct. 28, 1941 UNITED [STATE IRONING APPARATUS Theodore B. Bush, Royal Oak, Mich, asllgnor to orpontion Borg-Warner Corporation, a c

Illinois implication September 25, 1937, Serial Nil- 165,644

18 Claim:-

This invention relates to roll ironers and has particular reference to improvements in power operated roll ironers, such as are adapted for domestic use.

As illustrated in shown as being embodied in a portable roll ironer comprising a shoe element, a rotatable roll element cooperable with said shoe element for ironing purposes, said elements being mounted'upon a common support and for movement relative to each other, and power transmission means, including a source of energy, operable for eilfecting relative movement between said shoe and roll elements and for rotating said roll element.

A principal object of the invention is to provide a new and improved form of ironing apparatus, suitable for domestic use.

Another object of my invention is to provide a new and improved form of roll ironer, in which the ironing roll is mounted for movement toward and away-from the ironing shoe.

Another object of my invention is to provide a new and improved form 01 transmission means for power operated roll ironers.

Another object of my inventionis to provide a power transmission means includes novel and improved mechanism for effecting relative movement between the roll and shoe elements and for driving the roll element when the same. is in engagement with the shoe element.

Another object of my invention is to provide a transmission means for roll ironers, with an emergency release which efiects movement of the roll element away from the shoe element, independently of the source of energy which normally operates the transmission means.

Another object of my invention is to provide a power transmission means for roll ironers which is simpler in construction, more compact in at rangement and which is adapted to provide auto matic driving of the roll element when the same is brought into engagement with the shoe element; stopping ofthe roll element when the same is moved away irom the shoe element; two speeds the drawings, my invention is.

ifor roll ironers which I tion taken in conjunction with the accompanying drawings of which there are seven sheets and in which like characters are used to designate the same parts throughout the several views.

In the drawings:

, Fig. 1 is a perspective view of a roll ironer embodying my invention;

Fig. 2 isa vertical sectional view through the ironing roll element and power transmission mechanism and taken generally in a plane along the line 22 of Fig. 1, looking in the direction of the arrows;

Fig. 2A is a vertical sectional view similar to Fig. 2 but on an enlarged scale showing the power v transmission in greater detail;

Fig. 3 is an end view, with the end wall of the transmission housing and other parts partially broken away, illustrating in elevation certain parts of the transmission mechanism and or the support and mounting for the shoe element;

Fig. 4 is a vertical sectional view taken generally along the line 4-4 of Fig. 3, looking in the direction-of the arrowsv and illustrating certain details of some or the controls for the transmission;

Fig.v 5 is a horizontal sectional view through the transmission and taken generally along the staggered line 5-5 of Fig. 3, looking in the direction of the arrows;

Fig. '5A is a horizontal portion of the transmission showing a of the roll oscillating mechanism;

Fig. 6 is a vertical sectional view through the transmission, taken generally along the line 6-6 of Figs. 2 and 5, looking in the direction of the arrows, and illustrating the position of the mechanism whenthe roll is separated from the shoe;

Fig. "I is a vertical sectional view through another part of the transmission,' taken generally along the staggered line 1-1 of Fig. 2, and illustrating the position of the shifting mechanism when the roll is away from the shoe;

Fig. 8 is a vertical cross sectional view through the roll element and its supporting means and sectional view of a portion 5 taken'generally in a plane along the line 8--8 of rotation at which the roll element can be v driven; movement of the roll element away from the shoe element independently of the source of power in the event of failure thereof; and, autothe emergency release; and

means to permit the roll and shoe elements to be without rotation operated for pressing purposes I of the roll element.

of Fig. 2, looking in the direction of the arrows;

Fig. 9 is a horizontal sectional view taken along the line, 9! of Fig. 3, looking in the direction of the arrows and illustrating certain details of the knee-operated control of the transmission;

Fig. 10 is a front elevational view (the front wall of the transmission being broken away) of a modified form of. control and emergency re- For a better understanding of my invention 7.

' reference may be had to the following spcciflcalease for the transmission mechanism;

Fig. 11 is a vertical sectional view of the transmission taken on a plane as indicated by the line II-II of Fig.

Fig. 12 is a front elevational view of part of the transmission case and controls for the modification illustrated in Figs. 10 and 11;

Fig. 13 is a horizontal sectional view throug a portion of a modifiedform of transmission;

Fig. 14 is a vertical sectional view through the 4 24 in general comprises a cylindrical padded roll supported from the housing of a transmission indicated generally at 28, the transmission being supported upon the top surface of the table 20 and at one end thereof.

The shoe element 22 may be of any conventional or preferred construction and includes a polished metallic face 28 (Fig. 3) cooperable with the outer surface of the roll 24 for ironing or pressing materials which are passed between the surface of the roll 24 and the face 28 of the shoe 22 when the same are in contact with each other. The shoe 22 may be provided with means for heating the same and may be supported by an arm 30 of a bell crank 82, which is pivoted upon a horizontal axis at 34 in brackets 85 secured to the underside of support 20. The bell crank 82 may be biased to the position illustrated in Fig. 3 by spring means 38 which forms a resilient stop for limiting clockwise movement of the bell crank about its pivot. The shoe 22 is adapted, when free of the roll element, tobe supported approximately in the position illustrated in Fig. 3 and upon the upper end of the arm 80 in such a manner that the shoe 22 will have at least a limited universal movement with respect to the arm 80, so that the face 28 of the shoe may be properly presented to the surface of the roll element .24 or to any material arranged thereon for ironing.

When the roll element is brought into cooperative relationship with the face 28 of the shoe element 22, the mounting therefor is adapted to permit the shoe element 22 to move in such a way that pressure is substantially uniformly distributed over the contacting surfaces of the shoe and roll elements and so as to permit the ironing apparatusto be used for ironing or pressing relatively thick or thin materials. The shoe element 22 is maintained in a centered position relative to arm'80 by means of -a spring 81 extending between these two parts.

Referring now to Fig. 2, the roll 24, as illustrated, may comprise a tubular shell 88 of sheet metal, the outer cylindrical surface of which is continuously covered by padding 38 and a smooth cloth 40.

One end of the roll 24 may be provided internally thereof with a bearing 42 supported by an oscillatable journal 48, and the other end of the roll 24 may have a bearing provided by a bushing 44 carried by an end plate 48 which is secured to and closes one end of the shell 88.

the bushing 44 and a snap ring 41 arranged in van external groove in the end of the tube 41 for v tube 41.

The tube 41 may be supported approximately intermediate the ends thereof by an arm or member 80 and which member 80 is illustrated as being provided with a pair of aligned bores 82 located in a bifurcation of said member through which the tube 41 extends and wherein said tube is clamped by means of a pair of set screws 04, the ends of which may extend through suitable apertures in the tube 41 so that the same is securely locked against displacement.

The member 00 is provided with a cylindrical bearingsurface 88 by means of which it is journaled for oscillation upon a bearing surface provided by one end of a rigid supporting tube 08. the other end of which tube may be press fitted within a socket 08 formed by a boss on the transmission casing and locked in such socket by means of a set screw 10 (Fig. 5). The bearing plate 88 of the roll assembly is provided with an opening I2 through which the supporting tube 68 extends. The member 80 is further provided with a collar portion I4 to which there is secured by means of a key I8 and a locking screw I0, one end of an oscillating'tube 80 which is arranged within and coaxially of the supporting tube 06. The oscillating tube 80 extends through the supporting tube 88 and into the housing of the transmission where it is connected to an oscillating mechanism, so that upon oscillation of the tube 80, the roll 2'4 will be shifted into and out of engagement with the ironing shoe 22.

A roll driving shaft 82 extends through the oscillating tube 80 and is supported by means of a pair of bushings 84 arranged at opposite ends of the tube 80. The axis of the roll driving shaft 82 is arranged coaxially with the axis of the tubes 80 and 88 and within the roll the shaft 82 has fixed thereto a pinion 00, the teeth of which mesh with the teeth of an internal gear 88 carried by the shell 88 of the roll 24. The gear 88 may be connected to the'shell 88 of the roll 24 by means of aplurality of screws 00 and may, as illustrated, have a hub and bearing 82 journaled on the tube 41 next to the member 80: The supporting tube 80, as illustrated, extends only to a point approximately midway theends of the roll 24 and the member 60 supports the tube "approximately midway of the ends thereof. 4

The transmission provides means for transmitting power from an electrically operated motor I00 to the roll 24 for rotating the same as well as for moving the roll into engagement with the shoe 22 so as to apply pressure to material placed upon the roll 24 for ironing or pressing. The transmission 26 includes a rigid housing I02, which includes a removable cover porting the transmission mechanism and the motor I00 and for supporting the roll 24. The

The bushing 44 is journaled upon a bearing surhousing I02 is adapted to be rigidly secured to the frame of the support 20, such .as by means of a plurality of bolts I08 which extend through suitable openings in the frame of the support gency release clutch 28 and engage threaded portions I08 (Fig. 2A) walls of the transmission housing I02 by means thereby forming a' rigid, but

of the housing I02 the housing I02 detachable connectionbetween and the support 20.

The motor I is susp nded by means of four posts H0 from a horizontally arranged wall portion H2 of the housing I02. The wall portion H2 is provided with a central opening through which the shaft H4 of the motor extends and is connected by means of a flexible coupling H6 to a worm shaft H8, which shaft is journaled at its lower end in a bushing I20 and at its upper end in a bushing I22 (Fig. 6). The bushing I20 may be press fitted within a bore I24 formed in a partition I25 which closes the bottom of the compartment within which the transmission mechanism is arranged. A nut I26, held in place by means of a locking plate I28, is threadedly secured to the lower portion of the bore I24 and provides a seat upon which a shoulder I30 of the shaft H8 is located. The bushing I22 is press fitted within a socket I32 formed in the upper part of the transmission housing and a thrust plate I34 is arranged in the top of said socket I32. Between the underside of the thrust plate I34 and the end of the worm shaft H8 a ball bearing I36 may be arranged. A grease cup I38 may be carried by a projecting part ofthe bushing I22. The worm shaft I I8 is provided with a worm I40, the teeth of which mesh with the teeth of a worm wheel I42.

The transmission mechanism (Fig. 2A) includes a roll shifting or oscillating clutch indicated generally at I44, a roll driving clutch indicated generally at I46, an emergency release clutch indicated generally at I48, and a two-speed clutch indicated generally at I50. The roll shifting or oscillating clutch I44 controls the movement of the roll 24 toward and away from the shoe 22 during normal operation of the ironing machine. The roll driving clutch I46 controls the rotation of the roll so that the roll 24 may be rotated when the same is in engagement with the shoe 22, and so that the rotation of the roll will be stopped when the same is separated from the shoe 22. The emer- I48 permits the roll 24 to be shifted away from'the shoe 22 independently of the source of power and in the event of failure thereof. This clutch I48 is for emergency, use to permit the roll 24 to be moved away from the heated shoe 22 to of burning the padding of the roll 24 if the supply of current to the motor I00 fails. The two-speed clutch I50 is adapted to connect the eliminate the possibilityof a plurality, of bolts I (Fig. 5).

As previouslyexplained, the worm wheel I42 is rotatably supported upon the shaft I52 and includes a sleeve portion or clutch member I62 (Figs. 2 and 2A) extendingwxially from the hub .of the worm wheel I42, and the outer surface of which sleeve portion I62 is cylindrical and forms a clutching surface of the spring clutch I44, which is the roll shifting or oscillating clutch. vSaid clutch I44 further includes a cylindrical drum portion or clutch member I64, a clutch spring I66 and a clutch plate I68 provided with a pair of laterally extending lugs or stops-l10 (Fig. 6), circumferentially spaced on the circular plate I68, 180 apart. The clutch spring I66 is coiled and may have an internal diameterslightly in excess of the external diameter of the cylindrical surfaces provided by the clutch members I62 and I64. The external diameter of the clutch members I62 and I64 should be the same, and the clutching surface should be smooth .and continuous so as to provide a good clutching surface. One end I12 (Fig. 7) of theclutch spring I66 extend-s radially and is located between a pair of axially extending pins I14 carried by an eccentric I16 and the other end I18 of the clutch spring is located in a notch provided in a laterally extending lug formed on the clutch spring side of the clutch plate I68. The clutch plate I68 is carried by the clutch member I62 and the side of the clutch plate I68 is held by the spring I66 in frictional engagement with a flat side of the hub of the worm wheel I42. Looking at Fig. 6, the worm wheel will rotate in a counter clockwise direction. The clutch plate I68 is kept from totating with the worm wheel I42 by means of a finger I82 having an abutment I84 which normally is adapted to rest in the path of rota- .tion of the lugs I10. Movement of the finger roll 24 to its driving mechanism so that the roll canbe driven at either of two speeds, or to disconnect the roll from its driving mechanism so that the roll will not rotate when the same is brought into engagement with the shoe 22. When it is desired to use the ironer for pressing purposes, rotation of the roll may not be desired, hence, the clutch I50 may be set so as to disconnect the roll from its driving mechanism. r

The worm wheel I42 is mounted for rotation upon a shaft I52, and which shaft is held at one end in a bore I54 (Figs. 2 and 2A) in the transmission case by a set screw I56, the other end of the shaft I52 being rigidly supported by a bearing plate I58 which forms a removable closure for the open end of the compartment in which the transmission mechanism is disposed. The plate I58 may be secured to the I86 to the position shown in dotted lines in Fig. '7 will move the abutment I84 out of the path of the lugs I10. Rotation of the worm wheel I42, when the motor is operating, and if the abutment I84 is moved out of the pathof travel of the-lugs I10, will permit the clutch plate I68 to be rotated due to the frictional drag between the clutch plate I68 and the side of the'hub of the wheel I42. So soon as the clutch plate I68 begins to rotate, and assuming the' eccentric I16 to be at rest, the clutch spring I66 will begin towind up upon the clutching surface of the members I64 and I62 as the result of which the inside diameter of the clutch spring tionally grip the external cylindrical surface of the clutch members I62 and I64. The clutch member I62 rotates with the worm wheel I42, and the clutch member I64 will be rotated with the clutch member I62 50 soon as the clutch spring I66 operates frictionally to grip the clutching surface of the members I62 and I64, the end I12 of the clutch spring being anchored to the eccentric I16 which is connected to the clutch member I64. If the abutment I84 immediately after being moved out of the path of travel of the lugs I10 is permitted to return (in a manner hereinafter described) to the in full lines in Fig. 7, thesecond lug I10 upon I82 which is pivoted at the clutch plate I68 will be engaged by the abut I66 will contract and fric-- position nection between the clutch spring I66 and the clutching surface of the clutch member I62, in-

asmuch as the end I18 of the clutch spring is connected to the clutch plate I68. It will thus be seen that the clutch I44 when engaged will remain so for 180 of rotation, that is. the clutch will remain engaged until the driven member I64 thereof has been rotated through 180 of movement by the driving member I62 of the clutch.

The finger I82 forms a part of a lever which is pivoted by a pin I86 to a lug I86 formed on the inside of the transmission housing. The finger I82 is adapted to be moved out of the position illustrated in full lines in Figs. 6 or 7 by means of a pin I61 mounted for vertical movement in a guide I88 formed in the wall of the transmission housing, the pin I81 being provided externally of the transmission housing with a push button I90 and, internally of the transmission, being adapted to engage a laterally extending pin I92 carried by a part of the finger I82 which is below the pivot point I86. The finger I62 extends downwardly to a point where it is engaged by an arm I94 (Fig. 3) mounted upon the upper end of a vertically arranged crank arm I96 so that movement of the arm I94 in a clockwise direction (looking at Fig. 5) will displace the lower end of the finger I82 to lift the abutment I84 out of the path of the projecting lugs I on the clutch plate I 66. The push button I90 is adapted to actuate the finger I82 to remove the abutment I84 from the path of the lugs I10 of the clutch plate I66, upon being pushed downwardly and released. A spring I98 (Fig. 7) one end of which is connected to the finger I82 on the abutment side of the pivot I86 is adapted for retuming the abutment I84 to its normal position in the path of the lugs I10. The arm I94 is adapted to act as a return stop for the finger I62. The crank arm I96 (Fig. 5) is mounted in a guide I96 and the lower end of the crank arm has an arm 20 (Fig. 9) which engages in a slot 202 in a bell crank 204 mounted on a vertical pivot 206. A link 208 connects one arm of the bell crank 204 to one end of a lever 2I0 pivotedat 2I2. The other end of the lever 2| 0 has connected to it one end of an axially slidable rod 2I3 mounted for movement in guides 2I4 and having at one end thereof a depending pad 2I5 which extends below the support 20 and is adapted to be engaged by the knee of an operator of the ironing machine. The connection between the slidable rod 2I3 and the arm 200 is such that the arm I94 will be moved in a clockwise direction about its pivot upon movement of the knee pad 2I5 in either direction. The push button I90 provides a fingertip control for the roll oscillating clutch I44 while the pad 2I5 provides a knee control for the power clutch so that the clutch may be operated in two different ways, whichever is most convenient. In either case, the member I90 or 2I5 is displaced slightly and then immediately released and in either such event, the clutch I44 will engage to transmit 180 of movement to the driven member I64 of the clutch.

The eccentric I16 is adapted to shift the roll 24 into engagement with the ironing shoe and is moved through 180 of travel every time the clutch I44 is engaged. The eccentric I16 is provided with a circular peripheral surface 220 which is fitted within an encircling strap portion 222 of a connecting link 224 (Fig. '7). The end of the link 224 is pivotally connected to a pin I26 carried by an arm 226 of a sleeve 230 (Figs 2 and 2A) through which one end of the oscillating tube extends. The inside of the sleeve 230 forms a bearing for one end of the tube 80 and the outside of a part of the sleeve is supported by a bushing 232 press fitted into one end of the roll supporting tube 66. The sleeve 23.0 is formed to provide the driving part 234 of the spring or emergency release clutch I48. Said emergency release clutch I48 further includes a driven part 236 keyed for rotation with the oscillating shaft 80 by a key 238 and a clutch spring 240 one end 242 (Fig. 7) of which is looped around an anchor pin 244 carried by a radially extending portion of the sleeve 230, and the other end 246 of which is bent outwardly and away from the main body of the spring so as to be engageable by a clutch releasing member 246. The clutch parts 236 and 238 are provided with aligned cylindrical clutching surfaces, and the clutch spring 240, when coiled, preferably has an inside diameter substantially the same as the outside diameter of the clutching surfaces of the clutch parts 234 and 236. The spring clutch I46 is one form of a self-energizing clutch which operates to transmit torque in one direction and which is adapted to permit over running of the clutch parts when the speed of the driven part thereof exceeds that of the driving part. In the present instance the clutch I48 is adapted to 234 of the clutch I48 forms a part of the sleeve 230 connected by the arm 226 to the connecting rod 224, it is apparent that upon shifting of the eccentric from the position in which it is illustrated in Fig. 7, the clutch I46 will operate to oscillate the tube 80 so as to bring the ironing roll 24 into ironing relationship with the face of the ironing shoe 22.

Due to the nature of the spring clutch I 48, it is apparent that when the eccentric I16, connecting rod 224, and sleeve 230 are in the position illustrated in Fig. '1, the clutch spring 240 will not grip the driven clutch part 236 and return it to the position illustrated in Fig. 7 as the clutch spring I48 will only operate to transmit torque when the sleeve 230 moves in a clockwise direction.

The oscillating tube 80 is provided with a stop lever 252 (Fig. 6) which has a hub 254 fitting over the end of the tube 80 and rigidly secured thereto by means of a set screw 256 (Figs. 2 and 2A). The end of the stop lever is adapted to engage a shaft 258 (Fig. 6) so as to limit the movement of the ironing roll 24 away from the ironing shoe 22. The stop lever 252 also carries a pin 260 which is adapted to extend behind the pin 244 (as shown in Fig. 6) so as to prevent the displacement of the roll toward the shoe when the roll is away from the shoe and the shifting mechanism is arranged in the position illustrated in Figs. 6 and 7. The oscillating tube stop lever 252 also is provided with a catch 262 to which one end of a spring 264 is hooked, the other end of the spring being hooked to a lug 266 of a bell crank 268 pivotally secured at 210 by a pin to a part 212 formed'integrally with the encircling strap portion 222 of the connecting rod 224. When the clutch I44 is operated so as to permit the shifting mechanism of the transmission to shift to the position illustrated in Fig. 7, the spring 264 will operate to shift the ironing roll 24 away from the ironing shoe 22.

It will thus be seen that the power of the 24 away from Y shoe. The control into engagement with the ironing shoe 22, where- Us the spring 284 is utilized for shifting the ironever, the spring 284 cannot-shift the ironing roll the ironing shoe 22 unless the clutch I44 is actuated or unless the emergency release clutch I48 is be described. The bell crank 288 (Fig. 7) includes an arm 218 which constitutes a brake member and which is cooperable with a braking surface 214 formed by a peripheral segment of the eccentric I18. The brake members 212 and l 214 are adapted to cooperate only when the shifting mechanism is shifting from roll-engaging position to the position illustratedin Fig. 7, it being observedthatthe periphery of the eccentric is relieved at 218 (Fig. 1) so that when the ironing roll 24 is being shifted into engagement with the ironing shoe, no braking effect is ob-' tained.

The shaft 288 (Fig, in a boss 288 formed on the inside of the wall of the transmission case I82 and at the other end is supported by the bearing plate I88. A manually operable control member 282 (Figs. 3 and 7) for the emergency release clutch I48 is carried externally of the transmission case upon a shaft 284 rotatably supported in a bore formed in the wall of the transmission case, and the shaft 284 inside of the transmission case is provided with a pair of arms 288 (Fig. 4) each of which is arranged above a lug 288 carried by a sleeve 281 which also carries the emergency clutch release member 248 (Fig. 7) Rocking of the shaft 284 in either direction by manipulation of the control member 282 will cause one of the arms 288 to move downwardly and engage one of the lugs 288 as a result of which the emergency release cluwh member 248 will move in a counterclockwise direction ment of the emergency clutch release member 248 will engage the end 248 of the clutch spring of the emergency release clutch and will uncouple the clutch member 288 from the grip of the clutch spring, thereby permitting the spring 284 to shift the ironing roll 24 away from the ironing member 282 is provided so that in the event of failure of the source of power for the motor I88, the ironing roll 24 can be moved quickly away from the ironing shoe 22.

After the emergency release clutch I48 has been disengaged to permit the separation of the ironing roll and shoe, it is necessary to operate the finger tip control I88 twice in order to shift the ironing roll 24 back into engagement with the ironing shoe, after the source of power for the motor I88 has been restored. The spring I88 at one end thereof is secured to a part of the emergency release clutch member and'at the other end thereof is secured to a part of the finger I82 of the roll oscillating clutch release. The spring I88 thus serves to maintain in their normal positions the clutch release members I82 and 248.

The roll driving clutch I48 (Fig. 2) which is operable for connecting the roll to the motor so roll 24 away from the ironing shoe 22, Howreleased, as will hereinafter 5) at one end is supported motor is operating. The law clutch member 282 is formed on one end of the hub 284 slldably and rotatably mounted upon the shaft I82. Hub-284 is formed to include a pair of gears 288 and 288 having different pitch is in constant mesh with a gear 888 rotatably mounted upon the roll driving shaft 82 and arranged adiacent the oscillating tube stop lever hub 284. The gear 288 is in constant mesh with a gear 882 also rotatably arranged upon the roll driving shaft 82. The two-speed clutch I88 is adapted for selectively connecting the gears 888 and 882 to the roll driving shaft 82 for operating the same. The two-speed clutch I88 is manuallyoperated as will hereinafter be explained.

The roll driving clutch I48 is adapted to be engaged and disengaged in accordance with the movement of the ironing roll 24 toward and away from the ironing shoe 22.." A shift fork 884 (Figs. 8 and '5) carried by a hub 888 fast upon a slidable shaft 888 is adapted for engaging and diseng ing the roll driving clutch I48. The shaft 888 is diameters. The gear 288 mounted for sliding movement in a pair of guides I 8I8 carried by the wall of the transmission and is biased into clutch engaging position by a spring 8I2 (Fig. 5) arranged about the shaft 888 and confined between the hub 888 and the bearing plate I88 of the transmission case. tion in which the shift fork The engagement and disengagement of the clutch I48 is controlledby an eccentric 8 formed inte- 40 looking at Fig. 1. Such moveof the clutch parts 822.

as to drive the roll when the same is in engage- 1 ment with the ironing shoe, and to disconnect the roll from the motor I42 so as to be continuously driven when the grally with thei'oll-oscillating, stop lever 282.

The eccentric 8 includes a relieved portion 8I8 which, when brought into line with the end of shaft 888, will permit the spring 8I2 to shift the fork 884 and clutch member 284 so as to engage 1 the clutch I48. In the position in which the parts are illustrated in Fig. 6, the eccentric 8 is holding the clutch I48 disengaged and the ironing roll 24 is separated from the ironing shoe 22. When the eccentric I18 has shifted the roll into engagement with the shoe, the relieved portion 8I8 of the eccentric 8 will be in line with the end of the shaft 888. The roll driving clutch I48, it will be-seen, thus is engaged and disengaged in accordance with the shifting of the roll toward and away from the sh and this will be so whether the roll is shifted away from the shoe as a result of operation of the fingertip control I88 orthe operation of the emergency release control member 282.

The two-speed clutch I58 includes a pair of oppositely arranged spring clutches indicated generally at 828. The hub of each of the gears 888 and 882 is formed to provide a cylindrical clutch part 822 and a clutch member 824, common to both of the clutches 828 and fast on the 'roll driving shaft 88 is adapted to provide a cylindrical clutching surface at each end thereof and next to the cylindrical clutching surfaces Each of the clutches 828 includes a clutch spring 828 coiled about the adjacent clutch surfaces of the parts 822 and 824 and which are adapted to transmit torque from the members 822 to the member 824 for driving the roll driving shaft 82. A shiftable clutch member 821. is slldably splined upon a splined portion of the clutch member 824 and is provided with a series of axially extending pins 828. When the clutch member 821 is shifted either to the right or to the left of the position in which it is illustrated in Figs. 2 and 5, one of the pins 828 will engage with one of the ends 888 of one of the clutch springs 828. The clutch In the posi- V 884 is illustrated inf 5, the roll driving clutch I48 is disen a ed.

springs 326 will rotate with the gears 808 and 302, one at a faster rate than the other, and when the clutch member 321 is shifted, for example to the left, one of the pins 328 thereof will engage the end 330 of the left hand clutch spring 326 as a result of which the end of the clutch spring 328 will contract and grip the clutching surface of the clutch'member 324 as a result of which torque will be transmitted from the gear 300 through the left hand clutch spring 326 and clutch member 324 to the roll driving shaft 82. During such time as one of the clutches 320 is operating, the other of the spring clutches will be inoperative and the clutch spring 326 thereof will simply overrun the contiguous portion of the clutch member 324. The operation of the spring clutches 320, I48, and I44 is substantially the same except that in the cases of the spring clutches I44 and I48, the clutches are self-energizing and are normally set up in such a way as to transmit torque, whereas the clutches 320 need to be engaged or acted upon in order to transmit torque.

The shiftable member 321 (Fig. '5) of the clutch I50 is manually operable by a shift fork 332 slidable upon the shift rod 258. A control member 334 (Fig. 3), similar to the control member 282, is mounted externally of the transmission case upon a shaft 336, (Fig. 4) and, internally of the transmission case, shaft 336 is provided with a fork 338. The shift fork 332 includes a sleeve 333 free on the shaft 258 and which sleeve is provided with a pin 331 which is engaged by a fork 338 so that upon actuation of the control member 334, the clutch member 321 may be shifted either to the right or to the left for selectively connecting either of the gears 300 or 302 to the shaft 82 for driving the same.

The end of the shaft 82 is provided with a cap 340 which is secured thereto by means of a screw 342 and prevented from rotating relative thereto by a pin'344. A bushing 346 is pressed into an aperture in plate I58 and forms a bearing in which cap 340 is rotatable thus supporting the right end of shaft 82 as viewed in Fig. 2A.

In the modification of the invention shown in Figs. to 12, the roll oscillating clutch and the emergency release clutch actuating members are combined thus reducing the number of control buttons provided exteriorly of the transmission.

The mechanism of the transmission remains substantially unchanged, the clutch plate I68 being provided, as in the disclosure of Figs. 1 to 9, with a pair of laterally extending lugs or stops I10, circumferentially spaced on the circular plate, 180 apart. A stop 360 carried on the end of an arm 362 of a bell crank lever is adapted to engage stops I10 to operate the roll oscillating clutch in the manner described in connection with Figs. 1 to 9.

The bell crank lever is mounted for oscillation upon shaft 258 and has a second arm 364 laterally offset with respect to arm 362 for engaging the curled end 246 of the clutch spring 240. A third arm 366 of the bell crank projects toward the front of the casing I02 for the transmission mechanism, and is adapted to be engaged for downward movement by a lug 368 on a lever 310 secured to a shaft 312 which projects through casing I02 and is adapted to be rotated by a control member 314 secured exteriorly of the casing to the shaft 312. A coil spring 316 secured between the casing I02 and an arm 318 of the bell crank lever tends to rotate the bell crank lever in a clockwise direction thus maintaining the bell crank lever in operative relation with respect to clutch plate I68 of the roll oscillating clutch and out of disengaging position with respect to the curled end 246 of the clutch spring 240.

An additional bell crank member 318 projects downwardly into engagement with the lever I84 secured to the upper end of shaft I86 of the knee operated linkage shown in Fig. 9.

It will be noted that a slight amount of clearance is provided between the curled end 246 of the clutch spring 240 and the lever 364 of the .bell crank. It will thus be recognized that the member 360 may be moved out of engagement with the stops I10 without releasing the clutch spring 240. It will be recognized that the construction of Figs. 10 to 12 materially reduces the number of controls with which the operator is required to deal thus simplifying the operation of the machine. It will also be appreciated that the release of the clutch spring 240 in case of emergency will be accompanied by release of the clutch member I68. The roll oscillating clutch will thus be seen to be in position for the next cycle of the machine even though the emergency release clutch has been actuated. A pin 316 upon the lever 310 constitutes a stop which has engagement with the shaft 268 to prevent lever 310 from being rotated past a horizontal position in a clockwise direction.

In the modified form of transmission shown in Figs. 13 to 15 the main elements thereof remain the same. The transmission is again' hqused in a casing I02 and is again provided with a roll oscillating clutch I44 which is of the spring type. The only difference in this transmission lies in its use of a dog clutch I48 in place of the spring clutch I 48 employed in Figs. 1 through 12. With such a construction the roll is adapted to be moved during normal operation both into and out of operative relation to the shoe, the dog clutch I48 being constantly in engagement.

The dog clutch I48 will be seen to comprise a collar member 400 splined at 402 to the roll oscillating tube and having teeth 404 for engagement with corresponding teeth upon a collar 406 which corresponds to the collar 234 shown in Fig. 2A and is adapted to be driven by the roll oscillating clutch I44 through the eccentric 220 and connecting rod 222. The clutch collar 400 is normally maintained in its shifting position to the left by means of a spring 408 encircling the roll oscillating tube 80 and bearing against the collar 400 and the flange end 4I0 of a sleeve 4I2 which is held against endwise displacement by a collar 4I4 pinned at 6 to the roll driving shaft 82.

During normal operation of the ironing machine the clutch I48 will remain in engagement to transmit power from the eccentric-220 in both directions. During emergencies however when the power may fail, it is necessary to shift the roll out of engagement with the shoe to prevent injury to the clothing which may lie between To this end the shiftable collar 400 is provided with a slot 4I8 with which a shift fork 420 is engaged. The shift fork is casing is provided with an offset portion 428 which carries a pin 428 engaging with a laterally extending portion 430 of the shift fork "I. Movement of the handle 22 in a counterclockwise direction when viewed from in'movement of the shift fork 420 to the right as viewed in Fig. 13. This will result in the clutching collar 400 being moved to the right, out of engagement with the collar 40' against the action of the spring I08. The shaft 2| engages a laterally extending slot in the portion 430 of the shift fork 420 to preserve the alignment of the two parts.

The clutching collar 400 is provided withan extension 432 apertured at 434 to receive a spring 436 which is connected to an oiIset-portion of the eccentric in the same manner as the modification shown in Figs. 1 to 12 and particularly as shown in Fig. 7. Upon release of the clutch I48 the spring 8 becomes effective to rotate the collar m in a counter clockwise direction as viewed in Fig. 15 to rotate the roll oscillating tube 80 and move the roll away from the shoe.

The collar 400 is also provided with a second projection in which has a flat spot II for engagement with a pin 2. The pin is normally pressed upwardly by means of .a spring I wrapped around the pin and extending between a stationary portion of the casing I02 and a washer 6 pinned at us against upward movement with respect to the pin 2. Portion of the arm I38 and the spring pressed pin 2 serve as a resilient stop means for arresting the oscillation of the roll away from the shoe under the influence of spring 435.

While the invention has been described with some detail, it is to be understood that the description is for the purpose of illustration only and is not definitive of the limits of the inventive idea. The right is reserved to make such changes in the details of construction and arrangement of parts as will fall within the purview of the attached claims.

I claim:

1. In an ironing machine, a roll, a shoe, a source of power, a one-half revolution clutch driven from said source 'of power, a two-speed selective clutch driven from said source of power, a power transmitting connection between said one-half revolution clutch and the interior of the roll for moving the roll bodily against or away from the shoe, and a second power transmitting connection between said two-speed clutch and the interior of the roll for rotating the roll upon its axis, said power transmitting connections extending at least in part along a common axis to cause the connections to be operative in all positions of movement of the roll toward and away from the shoe.

2. In an ironing machine, a shoe, a roll-mounted for bodily movement into and out of engagement with said shoe, a source of power, and a transmission mechanism, said transmission mechanism including a power driven clutch for bodily moving said roll, a clutch through which the roll is rotated about its axis, and instrumentalities dependent upon the position of' the roll for connecting and disconnecting the roll rotating clutch said clutches having a part in common and being located upon a common axis to be driven from the source of power.

3. In an ironing machine, a shoe, a roll mounted for bodily movement into and out of engagement with said shoe, ,and a power transmission, said transmission including a roll moving clutch controlled by the operator, a roll the front results member splined to 'pair of members rotating clutch controlled by operation of the roll moving clutch, a manually controlled change speed clutch driven from the roll rotating clutch, and a manually disconnectible clutch driven from the roll moving clutch and permitting movement 'of the roll away from the shoe in the event of power failure.

4. A power transmission device comprising a pair of members mounted for rotation upon a common shaft and driven at different speeds from the same source of power, said members having hubs of equal diameter, a coiled spring carried by each of said members upon ing sides and coiled about but frictionally free of their respective hubs, and a shiftable clutch a. hub of the same diameter as the hubs on said members and loosely encircled by said springs, said clutch member being tight on the hub between the springs and said shiftabie clutch member having means engageable with either of the free ends of said springs thereby operatively to connect either of said to said shaft by contracting one of the springs into engagement with mating hubs.

5. In an ironing machine, a shoe, a roll, power operated means including a clutch for shifting the roll into contact with or away from the shoe, a stop for. arresting movement of said clutch and said means every half revolution with the roll'in engagement with or away from. the shoe, a second clutch for permitting the roll to be shifted independently of the first clutch, and

means for releasing said second clutchin the event of power failure comprising a lug carried by said stop.

6. In an ironing machine, a shoe, a roll, power operated means including a clutch for shifting theroll into contact with or away from the shoe, 9. stop for arresting movement of said clutch and said means every half revolution with the roll in contact with or spaced from the shoe, a second clutch for permitting the roll to be shifted independently of the first clutch, and means for releasing said second clutch in the event of power failure comprising a lug carried by a manually movable member.

'7. In an ironing machine, a shoe, a roll, power operated means including a clutch for shifting the roll into contact with or away from. the shoe, a stop for arresting movement of the clutch every half revolution with the roll in contact with or spaced from the shoe, a second clutch for, permitting the roll to be shifted independently of Y the first clutch, means for releasing said second clutch in the event of power failure comprising a lug carried by a manually movable member, and single spring means for urging both the lug and the stop into operative position.

8. In an ironing machine, a resiliently mounted shoe, a roll mounted for bodily movement into and out of engagement with said shoe and rotatable about its axis, and a transmission for imparting the bodily and rotary movements to said roll, said transmission including a one-half revolution clutch for bodily moving the roll to stop the roll at the limits of ,its movement into and out of engagement with said shoe, a clutch for transmitting rotary move ment to the roll and engaged by movement of the flrstclutch, and a speed selective device located in the train of rotary motion transmitting mechanism for varying the speed of rotation of the roll toward and away from the shoe.

9. Ironing apparatus comprising a shoe,.a roll,

their facroll, a source of power, a driving connection between said source of power and said roll and operable for shifting said roll into engagement with said shoe, a clutch for controlling said driving connection, a second source of power, a driving connection between said second source of power and said roll for moving said roll away from said shoe, a clutch in said last mentioned driving connection and means for operating said clutches so as to control the movement of said roll toward and away from said shoe.

11. Ironing apparatus comprising a shoe, a roll shiftable into engagement with and away from the shoe, means for shifting the roll including a source of power, a roll shifting mechanism, a clutch between said source of power and said shifting mechanism, roll supporting mechanism, a clutch between said shifting mechanism and said supporting mechanism, means for controlling said first-mentioned clutch so as to control the power shifting of the roll into engagement with and away from the shoe, and means for operating said second-mentioned clutch for disconnecting the roll support from the source of power to permit movement of the roll away from the shoe independently of operation of the first-mentioned clutch in the event of failure of power.

12. Ironing apparatus comprising a roll element, a shoe element, one of said elements being mounted for movement toward and away from the other of said elements, a source of power, a driving member in constant connection with the source of power, a shifting member connected to said movable one of said elements, a driving connection including a pair of clutches between said driving member and said shifting member, one of said clutches constituting a shifting clutch and the other of said clutches constituting an emergency release clutch, said shifting clutch being arranged between said emergency release clutch and said driving member, said shifting clutch being engageable to complete the driving connection between said driving member and said shifting member so as to operate said shifting member for moving said shoe and roll elements into and out of engagement, spring means connected to said shifting member and adapted for operating the same to effect a separation of the said roll and shoe elements, said emergency release clutch being adapted to break the driving connection between said shifting clutch and said shifting member to permit said spring means to effect a separation of said ironing elements in the event of power failure.

13. Ironing apparatus comprising a roll element, a shoe element, one of said elements being mounted for movement toward and away from the other of said elements, a source of power, a driving member in constant connection with said source of power, a shifting member cona source of power, a driving connection between nected to said movable one of said elements, a driving connection including a pair of clutches between said driving member and said shifting member, one of said clutches constituting a shiftin: clutch and the other of said clutches constituting an emergency release clutch, said shifting clutch being arranged between said emergency release clutch and said driving member, said shifting clutch being engageable to complete the driving connection between said driving member and said shitting member so as to operate said shifting member for bringing said shoe and roll elements into engagement, spring means connected to said shifting member and adapted for operating the same to eflect a separation of the saidroll and shoe elements, said emergency release clutch being adapted to break the driving connection between said shifting clutch and said shifting member to permit said springmeans to efiect a separation of said ironing elements in the event of power failure, a-driving connection between said driving member and said roll element for driving the same, a roll driving clutch in said driving connection and means carried by said shifting member and operable for engaging and disengaging said roll driving clutch.

14. Ironing apparatus comprising a roll, a shoe, said roll being mounted for movement toward and away from the shoe, means including a source of power operable for shifting said roll into engagement with and away from the shoe, a manually operable clutch for controlling said shifting means, a driving connection between said source of power and said roll element, means operable in response to shifting of said roll for controlling said last-mentioned clutch so that the roll element will be driven when said roll and shoe are in engagement with each other and so that rotation of said roll will cease when said roll and shoe are separated and an emergency release mechanism arranged to control said shifting means so as to effect movement of said roll away from said shoe and disengagement of said second-mentioned clutch upon failure of power.

15. Ironing apparatus comprising a roll, a shoe, said roll being mounted for movement toward and away from the shoe, a source of power, a driving connection between said source of power and said roll and operable for effecting movement of said roll toward the shoe, a pair 01 clutches arranged in series in said driving connection, a driving connection between said source of power and said roll for rotating the same, means for shifting said roll away from the shoe, said last-mentioned means being operable in response to operation of either of said clutches, said driving connection for moving said roll into engagement with the shoe being operable only in response to operation of one of said clutches, a clutch in said roll driving connection, means operable in response to shifting of said roll for operating said roll driving clutch so that the roll will be driven when said roll and shoe are in engagement with each other and so that the rotation of said roll will stop when separation of said roll and shoe is efiected, and means for operating said first two mentioned clutches, one of said two clutches being normally employed for shifting the roll under power and the other being employed in the event of power failure in order to retract the roll from engagement with the shoe.

16. Ironing apparatus comprising a roll, a

shoe, said roll being mounted for movement toward and away from the shoe, a source 0! power, a clutch, a driving member driving said clutch from said source ot power, a driving connection between said driving member and said roll for .efiecting shifting thereof into engagement with the shoe, a one-way clutch arranged in said driving connection between said clutch and said roll, means, directly connected to a part which moves with said roll, for effecting movement thereof away from the shoe in the event of power failure, a-roll driving element, a driving connection between said driving member and said roll driving element, a clutch in said roll driving connection, and means responsive to movement of said roll for operating said clutch in said' roll driving connection so that said roll is driven when the roll and shoe are in engagement and is stopped when said rolland shoe are separated.

17. In an ironing machine, a shoe, a roll movable into and out of engagement with said shoe, power means including a member for moving first-mentioned said roll into engagement with said shoe, spring means for moving said roll out oi engagement with said shoe, and a brake engageable with said member for retarding the movement of the roll away from the shoe under the action or said spring means, said roll moving spring means being connected at one end to said brake to apply the same against said member.

18. In an ironing machine, a shoe, a roll movable into and out of engagement with said shoe, power means including a member for moving said roll into engagement with said shoe, spring means for moving said roll out of engagement with said shoe, and a brake engageable with said member for retarding the movement of the roll away from the shoe, said roll moving spring being connected at one end to said brake to apply the same against said member, and said member being relieved along a portion of its brake-presented surface to prevent contact between the brake and member during movement of the roll toward the shoe.

' THEODORE R. BUSH.

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