US1659553A - Typewriting machine - Google Patents

Description

Feb. 14, 192s. v1,659,553

E. G. ROWLEY l TYPEWRI T ING MACHINE Filed March 25. 1925 5 sheemet 1 Feb. 14, .1928.

E. G. RowLEY TYPEWRITING MACHINE Filed March 23. 1925 5 Sheet$-$h9et 2 wlmi lnx/enfer:

Afro/*f7 y 5 sheetsfsneet a Feb. 14, 1928.

E. G. ROWLEY TYPEWRITING MACHINE Flled March 2:5 1925 Feb. 14, 192s. 1,559,555-

E. G. RowLz-:Y

TYPEWRITING MACHINE Filed March 25. 1925 5 sheets-sheet 4 Feb.14,19zs. A 1,659,553

E. G. RQWLEY TYPEWRITING MACHINE Filed Maron 23. 1925 5 sheetsssheet 5 .55' The frame of -the machine is snugly` `Patented Feb.V 14, 1928. f

UNITED 4STATES n ynasa-sn PATENT* oFFicE.

EDWARD G. ROWLEY, OF BELLEVILLE, N' EW JERSEY, ASSIGOB TO UNDERWOGD TYPE- WEITER COMPANY, F NEW YORK, N. Y., A GOBPORATIONV'OF DELAWARE.

TYPEWRITING MACHINE.

Application led March 28, 1925. Serial No. 17,554.

This invention relates to sound-deadening casings for small typewritin machines in which the machine is comp etely enclosed within the casing except for the keyboard 5 extension which protrudes therethrough;

casing and thus eliminate the necessity of` l5 opening the cover to returnthe carriage, there 1s provided mechanism operatively connecting a hand-lever to the carriage. Said lever is pivotally mounted on the front wall .of the casing adjacent the kewboard` of the machine and at the right t ereof. Upon depressing the lever, a drum around which a lcord or tape is wound is made to rotate, thus pullingv on the cord and consequently returning vthe carriage. Due to the eculiar design of the'Underwood machine,

1n which the carriage is returned simul-- taneously with the line-spacing of the worksheet by manipulating the line-spacing lever, the cord may be fast to the line-spacing lever, and in this manner the work-sheet .may be line-spaced while the carriage is re.

I turned.

Another feature relates to the revision of an indicatino scale on the casing and infront thereo which scaleco-o erates with an indicating ointer fast to t `e carriagereturn lever. he pointer is locatedto 1ndicate the position of the carri e relatively to the printing oint, and sai scale'may substitute the regu ar scale rin the machine.

The carriage-return lever is provided with a thumb-piece at the end thereof, upon which pressure is applied to return the carriage. Saidthumb-piece is rockably mounted upon -the lever, and is rovided with mechanlsm whereby the thum -piece may be heldin its horizontal position throughout its swing. Said mechanism may inc ude a parallelogrammatic link lcannectmg a downwardlyextendin portion of the'thumb-piece to a fixed stud'u on the front wall of the'casing. Another eature relates .tothe construction of the casing, and Ymore particularly .to means for mounting' the machine the ed `the slack of the-cord, an

into a felt-padded metal box which is fast to a base-board, and then the four sides of the casing are fastened to the base-board by means whichmay include straps between the front `and rear walls havin holes therein to engage studs fast to the ase-board.

Another feature of the invention relates to the provision of means to enable the worksheet on the carria e to more freely therewith.' To this end, t e felt lining at' the back and top of the casing is covered with a plate of smooth material, to present an even surface to the work-sheet, both when fed around the platen of the machine, and when letterspacing the carriage, in iwhich cases the work-sheet might` dra against the ordinaril rough surface o the felt. L V

Ot er `features and advantages include improved means-to retain the cord on the drum which returns the, carriage. vSaid nieans comprises a light spirals ring to takeup a guard around the drum to hold th' cord within a groove cut into the periphe of the drum. Said guard is provided with a cut-out through which the cord extends and' is connected to the line-spacing lever. The spring tends to rotate-the drum-carrying shaft in the carriage-returning direction and is suiciently weaker than the line-space-lever-spring to permit thelever to return to normal osition after a line-spacing operation. lgowever, the cord is always kept taut and .due to this fact the pointer always indicates accurately on the scale the exact position of the carriage with respect to the printing point.

Other features and advantages will hereinafter appear.

In the accompanying drawings, Figure 1 is a perspective view of thev soun -deadeni'ng casin showing the machine therein and the therethrough. i

Figure 2 is a cross-sectional view, in elevation, showing an Underwood Portable typewriting machine within the casing.

eyboard protruding Figure 3 is a front view, in elevation, and

shows the carriage-return lever andthe indicating scale co-operating therewith.v

4Figure `4 is a cross-sectional view, in ele.-

vation, showing the machine in the casing and the carriage-return mechanism.

Figure 5 is a cross-sectional planfview through the line 5-5, of Figure 3.

Figure 6 is a fragmenta end view, in elevation, showing an auxihary arm connecting the line-spacing lever of the machine to the carriage-return mechanism.

Figure 7 is a perspective view of the auxiliary lever.

Figure '8 is a fragmentary view, in elevation, showing the drum and a casing to hold the cord in the groove around the periphery of said drum.

Figure 9 is a cross-sectional view, in elevatiom'through the line 9 9 of Figure 3.

Figure 10 is a cross-sectional view, in elevation, showing the cord-tensioning spring, and the means to fasten the enclosing bar- -rel to the rear wall of the casing.

Figure 11 is a front view of the cord-tensioning spring on the line 11-11 of Figure 9, loohng in the direction of the arrows.

Fi re 12 is a perspective view of the basecard and the felt-padded metal box into which the frame of the machine is fitted;

Figure 13 is a dismembered perspective view, showing the felt pads upon which the machine rests.

In order to deaden the sound arising from the operation of the machine, there is provided a sound-deadening casing which completely encloses the machine except for a keyboard-extension 10, which protrudes through an opening 11'.in the front wall 12 of theA casing.` Said' casing is lined with layers of sound-deadening material to refract the sound waves and to confine them within the casing.- As shown in the drawings the casing comprises a base-board 13, a ox 14 containing the frame of the machine, sound-conning walls fast to the baseboard, and a cover 15 pivotally mounted upon the rear wall 16.

The machine is located in the box 14 which hugs the frame thereof, which box is in turn fast to the hase-board 13. Referring more particularly to-Figures 12 and 13, in which the dismemhered elements of the box are shown, it will be noted that there is provided a base-plate 17 from which ears 18 are upwardly bent, forming the walls for support the machine. Said hase-plate is underline with a layer of felt 19 which exg tends u wardly to cover the ears 18. Said layer o felt is bent at 20 and extends downwardly, rovidinl.x lining 21 on which the frame o the mac e bears. The base-plate 17 iscovered with a plurality of layers of :felt to` insulate the feetl 22 of the machine ough. There are three layers of felt indicated by the .i 1 numeral 23 the upper ayer 'being provided Ywith holes 24 .for receiving um fea 22, vand with an elon ted Vrectangular` hole 25, to clear some o the which overextends the frame of the machine. The three layers are further provided with a cutout 26 at the rear into which the rear ear of the box 14 engages, and with cut-outs 27 for receiving the side ears of said box. For enga ing the front wall 12 of the casing, and t us prevent the emission of sound through the front, there are provided notches 28 cut into the felt layers and into the base-plate.

The box is located relatively to the baseboard 13 by means of studs 29 which are fast to the base-board and extend through holes 3() in the base-plate and in the felt layers. In this manner a positive connection is provided between the base-board and the frame of the machine through the box 14, the felt-padded ears of which bear upon the walls of the frame.

In order to facilitate the assembling of the machine into the casing, the base is provided with threaded studs 31 fast thereto, said studs being designed to engage holes in straps 32, which extend between the front and rear walls of the casing, to which they are fastened. In this manner the casing may be easily detached from the base-board by loosening finger-screws 33,A and by moving the casing upwardly away from the board. Itwill be noted that the rear wall of the casing is comparatively higher than the front wall, in order to incline the cover 15 downwardly and to render the work-sheet more visible through an aperture 34 in the cover. Said aperture is enclosed by means of a glass plate 35 to prevent the emission of sound therethrough. The glass plate is fitted into depressions 36 in the cover, and is fastened thereto by means of screws 37 which hold clips 38 bearing upon the edge of the glass.

To further prevent the emission of sound,l

the walls of the casing are provided with a felt lining 39 completely covering the inner sides of the walls, and presenting a refractory surface to the sound waves emanating from the machine. The cover is likewise lined with a layer of felt 40, to thus prevent the transmission of sound therethrough.

In the Underwood machine there is pro-Y vided a carriage 41 mounted upon rails, which carriage is arranged to letter-space after each key-depression. For the purpose of line-spacing the work-sheet which is placed around a platen 42 on said carriage,

atively connected to a ratchet-wheel 44 fast tion. Inorder to eliminate' the necessity` of opening the cover 15 after each line of gping to space the work-sheet and to return carriage, means are provided whereby there is provided a line-space lever 43 operl this end, there is provided a revolubly mounted drum 46 within the casing, said drum being operatively connected to the line-space lever on the carriage by means of a strap or cord ,47 wound-around the drum. In this manner, when the drum is rotated andthe cord is wound therearound, the car-l riage will be moved towards the drum, consequently returning the carriage to lts normal position. The drum 46 is revolubly mounted upon a shaft 48 journaled Yin the front and rear walls of the casing at 49'. The shaft 48, which carries the drum 46, is operatively connected to a lever 50 by means shown in Figure 4. Said means may include a pinion 51 fast to the shaft 48 and meshing with an internal gear 52 fast to a supporting disk 53, which is in turn fast to a shaft 54. Said shaft-54 extends o utwardly through the front wall of the casing uponr which it is journaled, and is provide with the lever 50 fast thereto. lReferring more particularly to Figures 5 and 9, it will be noted that the shaft 54 is rotatably mounted in a supporting sleeve 55, which is fast to the front wall of the casing by means of a collar 56A driven thereinto. The shaft `48 extends from one sideto the other of the casing, and passes through the disk 53 which is provided with a circular slot 57 to clear the shaft.

For the purpose of taking up the slack of the cord and to have it evenly tensioned between the lever and the drum, there is provided a spring 58,*shown in Figure 10. Said spring is shown in the form of a spiral wound around the shaft 48 and having its inner end fast thereto. The outer end of the spring is fast to a barrel 59, which is, in turn, fast to the rear wall of the casing, and incidentally servesv as` a bearing for the shaft 48. Said barrel is fast to a bushing 60. and the bushing is fastened to the rear wall by means of a recess 61 and-a nut 62 which holds the bushingfast to the wall. In order to render the spring adjustable to thus regulate the tension on the cord, there is provided a lsleeve 63, upon which the inner end of the spring is fastened by means of rivets 64. Said sleeve maybe rotated on the shaft to the desired position, and then set by means of a screw 65. It will be noted that the sleeve is provided with an integral disk 66 which fits into the barrel 59, thereby enclosing the spring 58 between the barrel and the disk. The spring 58 keeps the cord 47 taut in all positlons of the carringe.

In order to effectively hold the cord upon the drum in such 'cases when the tension of the cord may be released, there is provided over the periphery of the drum, thus enclosing the cord in the groove. The guard. is provided with an opening 69, through which the cord passes to the outside of the drum. It will be noted that the drum is provided with a hub 70, into which a. set-screw 71 fits, to fasten the drum upon the shaft 48. The guard is held in a fixed position relatively tothe drum by means of a pin 72 fast thereto and engaging a hole 73 in a spring 74 fast to the wall of the casing by means of rivets 75. V

To` facilitate the adaptation of the machine to be used within the casing, Vand in order to reduce alterations required to a minimum, there is provided a line-space arm 76, shown in Figure 7, which is designed to .lower the anchoring point of the cord, and

thus hold the cord in a horizontal position below the printing line. Said arm 76 is fast to the hub of the regular line-space lever 43 by means of a screw 77 and a pin 78 .whichengages the lever43.v The arm 76 terminates with an `enlarged portion 79, into which a hole 80 is pierced to receive the end of the cord 47.

To facilitate the positioning of the carriage relatively to the printing point, there is provided' a .circular scale 81,- cooperating with a pointer 82 fast to the lever 50. Said scale 81 is provided with graduations corresponding to the graduations on the regular scale on the carnage, which it may substitute. The scale is fast'to thefront wall of the casing b means of screws 83. B reason of the et that all slack is eliminated from the cord 47, the pointer`82 alwa s inf dicates on the scale 81 the exact position of f the carriage with relation to the printing point.

The carria with a thum piece 84 at the end thereof, upon which pressure is applied to return the carriage. Said thumb-piece is rockably mounted upon a pivot 85 fast to the lever. .In order that the thumb-piece may maintain its horizontal position'throu hout the swing of the lever, there is provi ed a parallelogrammatic link 86, engaging with a hole 87 in a downwardly-extending portion 88 of the thumb-piece. Said link is pivotally mounted on a stud 89 fast to the front wall of the cas-4 ing. Referring more particularly to Figure 3, in which this mechanism is shown, it will be noted that in both .extreme positions e-return lever -50 is provided disconnecting the cord. from the line-space lever, and looseningthe screws 33 which normally hold the casingon the base-board.

120 shown the thumb-piece is in its horizontal 1| the front Wall of the casing and extending :,esassa therethrough, Va disk fast to the shaft withln the casing,'a gear sector fast to the disk and operatively meshing with a smaller gear fast a second shaft journaled Within the casing, a drum having a peripheral groove j in which one end of a cord is fast and Wound therearound, said drum being fast to the second shaft andthe other end of the cord being fast to the carriage of the machine to draw the same toward thejdrum upon operation of the lever, means to take up the slack of the cord, and means to hold the cord within the groove', said last-mentioned means including a guard into which the drum is rotatably fitted, said guard having an opening through which the cord protrudes, and means to hold the guard in a fixed position relatively to the drum which revolves therein to return the carriage. y

8. A sound-deadening casing for a type'- Writing machine completely enclosing the machine except for the keyboard-extension protruding therethrough, and means for operating the carriage of the machine from the outside of said casing, said means including a hand-operable lever adjacent the keyboard of the machine, said lever being y pivotally mounted ona shaft journaled in the front Wallof the casing and extending therethrough, a disk fast to the shaft within the casing, a gear sector fast to the disk and operatively meshing with a smaller gear fast to a second shaft journaled within the casin a drum having a peripheral groove in w ich one end of a cord is fast and Wound therearound, ysaid drum being fast to the second shaft and the'other end of the cord being fast to the carriage of the machine'lto draw the same toward the drum upon operaion of the lever, means to take up the slack of the cord, and means to hold the cord within the groove, said lastmentioned means including a guard into which the drum vis rotatably fitted, said guard having an opening through which the cord protrudes, and means to hold the guard in a fixed position relatively to the drum which revolves therein to -return the carriage, said last-mentioned means including a resilient member fast to the casing having 'a hole desi truding from said guard.

Q. A sound-deadenin casing for a t writing machine comp etely enclosing. t e machine exce t for the keyboard-extension protruding t erethrough, and means for loperating the carriage of the machine from the outslde of said casing, said means including a hand-operable lever adjacent the keyboard of the machine, said lever being p1votally mounted on a shaft journaled in the front Wall ofthe casing and extending therethrough, a disk fast to the shaft within the casin a gear sector fast to the disk and operative y meshing with a smaller gear fast to a second shaft journaled Within the casln a drum having a peripheral groove 1n w ich one end of a cord is fast and wound therearound, said drum being fast to the second shaft and the other end of the cord being fast to the carriage of the machine to draw the same toward the drum upon operation of the lever, means for holding the cord within the groove, and means to take u the slack of the cord, said lastmentione means including a spring operatively mounted'on said shaft, said spring having its inner end adjustably fastened to the shaft and its outer end fast to a barrel for encasing the spring, said barrel being in turn fast to the casing.

10. A sound-deadenmg casing for a typewriting machine completely enclosing the machine except for the keyboard-extension protruding therethrough, means for operat- 1ng the carria e ofthe machine from the outside of sai casing, said means including a hand-operable lever adjacent the keyboard of the machine, a rockably-mounted thumb-piece at the end thereof, and means for holding said thumb-piece in its horizontal lposition during the operation of said lever. p

11. A sound-deadening casing for a typewriting machine completely enclosing the ed tov engage a pin promachine except'for the keyboard-extension protruding therethrough, and means for operating the carriage of the machine from the outside of said casing, said means includin a hand-operable lever adjacent the keyboard of the machine, a rockably-mounted thumbpiece at the end thereof, and means for holding said thumb-piece in its horizontal position during the operation of said lever, said last-menticned'means including a parallelogrammatic .link o eratively connecting a downwardly-exten ing portion of said thumb-piece with a fixed pivot in the wall of the casing upon which the link is rockably mounted. V

12. Asound-deadening casing for a portable ty ewritin machine havmg a p aten relatively near t le base of the machine, said casing including a cover and completely lli board-extension which projects through an aperture in the front of said casing, and means adjacent the rear of said base :tor directing the trailing portion of a standard typewriter-sheet upward to form a loop, said .means also providing a vsmooth traveling' l terminating in an upward bend to JEorma curved channel adjacent the base of said machine for directing the trailing portion of a standard typewriter-sheet upward 'at the rear of the machine in the form oi a loop, said plate presenting a smooth surtace to the loo so that it travels smoothly to and fro wit the platen.

14. A sound-deadening casing for a portable typewriting machine having a p aten relativelyl near the base ot the machine, said casing including a cover und completely enclosing the machine 'except for the keyboardeXtension which projects through an aperture in the front of said casing, a plate eX tending downward over the rear casing-wall and terminating in an upward bend to form a curved channel adjacent the base oi. said machine lor directing the trailing portion of a standard typewriter-sheet upward at the rear of the machine in the jform ot a loop, saidplate presenting a smooth surface to the loop, so that it travels smoothly to and fro withthe platen, and a second plate associated with the cover and overlapping the top edge of the first plate, said second plate being effective to direct the leading edge of the typewriter-sheet downward at the rear of the machine and into said channel as the line-spacing of the platen proceeds.

A 15'. The combination with a typewriting machine having a traveling carriage, a platen revolubly mounted on said carriage, and a line-spacing lever on sa'id carriage, of a sound-deadening casing for the machine, the position of the carriage as indicated by the regular letter-spacing carriage-scale of the enclosed machine not being readily observable from the outside of the casing, means for operatively connecting the line-spacing lever to an outside crank journaled in the front wall of said casing in a manner to afford the return of the carriage and the linespacing of the platen when the crank is rotated, a relatively small letter-spacing scale on the outside of the casing in position to be constantly visible to the operator, said scale having graduations proportionate but smaller than the graduations on the regular letterspacing scale of the machine, and a pointer operated by said crank so as to indicate on said outside scale each letter-space position of the carriage, as shown on the regular scale.

16. The combination with a typewriting machine having atraveling platen-carriage, oi" a sound-deadening casing, means for operating the carriage'from the outside of the casing, a relatively small arcuate scale on the outside of said casing and having a graduation for each letter-space position ofthe carriage, a pointer mounted to swing in the arc ot said scalo, and a train of connections between the pointer, the carriage and said carriage-operating means, said train inciudin rnovement-reducin d devices for causing sai pointer to move t rough a relatively small arc and indicate on saidscale each letterspace osition o' the carriage.

17. he combination with a typewriting machine having a traveling platenlcarriage and a sound-dendening casing for the machine, of a handle for operating the carrie e from the outside of the casing, a drum witv in the casing in line with the carriage and operatively connected to said handle, and a cord extending directly from said drum to the carriage, said drum and its connections being mounted below the line of travel of said carriage, so as to be cleared thereby.

18. The combination with a typewriting 4machine having a traveling platen-carriage, a line-space lever, and a sound-deadening casing for the machine, of a handle on the `outside of said casing, a drum operatively connected to the handle, the top of the drum being below the printing line, an arm attached to the line-spacin lever and having its free end terminating elow the printing line, a cord extending directly from said free end of the arm to the drum, and means for maintaining the cord in taut condition between its two points of suspension.

19. The combination with a typewritin machine having a letter-feeding carriage and a sound-deadening casing for the machine, of means for returning the carriage from the outside of the casing, means for indicating each letter-space position of the carriage, said means including a letter-spacing scale on the outside of the casing, a pointer for the scale, a winding drum operatively connected to the pointer, a cord directly connectingA Y said drum to the carriage, and means for maintaining'saidcord in taut condition between its two oints of suspension, thereby causing the pointer to indicate accurately on said scale each letter-space position of theV carriage.

20. The combination with a typewriting machine having a Aletter-feeding platen-car riage, line-spacing mechanism including a lever, a spring for returning the latter to normal positiomand a sourid-deadeningy casing4 for the machine, of a handle on the outside of the casing wall, .a drum operatively connected to the handle, a cord directly connecting said drum to the line-space lever, a let` ter-space scale on the. outside of the casing, a pomterfor said scale, operatin connections betwfeen the pointer and the urn, and

means for maintaining the cord in taut con dition between the drum and the lever,

whereby the handle is held in position and v the pointer indicates accurately on said scale each letter-space position of the carriage.

21. A sound-deadening casing for a typewritin machineA having a front wall'thereof tively connecting said indicator with the carc riage of the typewriting machine to indicate on the scale each letter-space position of the machine relative -to the printing point thereof. e

EDWARD G. IROWLEY.A

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