US1886973A - Key assembling machine - Google Patents

Description

Nov. 8, 1932. w. PECHY 1,836,973

. KEY ASSEMBLING mkcnnw Filed April 9, 1931 9 Sheets-Sheet 1 INVENTOR BY mid W I .v V ATTORNE Nov. 8, 1932. w. PEcHY KEY ASSEMBLING MACHINE Filed April 9. 1931 9 Sheets-Sheet 2 s, 1932. E Y 1,886,973

KEY Asszusuud MACHINE ATTORNEY Nov. 8, 1932.

W. PECHY KEY ASSEMBLING MACHINE.

Filed April 9, 1951 9 Sheets-Sheet 4 I Z 4 f 7 4 l 2 o g a Z 4 I w I 1 I I J I 5 Z g 2/7 2 2 g 4 4 Qt ml H 5 v Q w! Q g ZZ 1 v INVENTOR BY Madam? ATTORNEY W. PECHY KEY ASSEMBLING MACHINE Nov. 8, 1932.

9 Sheets-Sheet 5 Filed April 9, 1931 I all u INVENTOR BY M/ U ATTORNEY Nov. 8, 1932. w. 'PEcHY KEY ASSEMBLING MACHINE Filed April 9, 1931 9 Sheets-Sheet 6 Nov. 8, 1932 w, PECHY 1,886,973

KEY ASSEUBLING MACHINE Filed April 9, 1931 '9 sheets-sheet a fig. 9 jr 1 1! 1 l l I l l .i 44 I I I iii l #2 v I l s I i i f: l g l I?! l 2 I hi 1;; I N; I vI M l 1 In I V INVENTOR ATTORNEY KEY ASSEMBLING momma I Filed April 9. 19:51 9 Sheets-She et 9 INVENTOR 2&1 y AL A ATTORNEY Patented Nov. 8 1932 UNITED A STATES PATENT; OF-m:

i: WILIJAIPIGEY,OI m ,ASBIGKOBTbAmIGLI CAI 001mm,

0? NEW YORK, I. Y, A. (DBPOBATIOH 01' NEW JERSEY Application fled April 9.1

The present invention relates to an apparatus for securing keys to cans and has par- V ticular reference to the clinching of a key on aprojecting part of the can. The principal object of the present invention is the provision of an apparatus for automatically clinching a key onto the seam of a positioned can. 7

An important object of the invention is the rovision of an apparatus for automatically ceding keys from a magazine and cans from a storage runway or magazine and assemblin the keys on the cans and securing them in fix position.

An important object of the invention isthe provision of an apparatus of the character described wherein .a key having a bent end I is automatically located on a can and its bent end altered in shape to secure it in place.

An important object of the invention is the provision of an improved key locating device for a ke attaching machine which re-' 'ceives a key w 'le in horizontal position and which moves the key into a vertical position and into engagement with a can.

An important object of the invention is the provision of an automatically operating mechanism for individually feeding a single key from a stack of keys and positioning it on and securing it ton container by a bending of Aa part of the key to hold it in position.

urther important object of the invention is the provision of an improved clinching device for a key attaching machine wherein a key is received in one position and is moved into another position into engagement with a can, the clinching device being operated as a clinching element after full engagement of the key and the can.

An impbrtan-t object of the invention is the provision of an a paratus for feeding a key rom a stack of eye and holding it under proper control while movin and guiding it into assembled position on a eld can.

Animportant object of the invention is the provision of an apparatus of the character described for appl 'ng keys tocans and which with 'a few simp e changes maybe adapted to operate on cans of difierent size. 1

Numerous other objects of the invention -member. This member has two positions, a

apparent as it is better understood I will be from the OllOWllE description, which, taken in connection wi the accompanying drawirigs, discloses a preferred embodiment there- 0 Referring to the drawings: Figure 1 is an end elevation of anapparatus capable of carrying out the'steps of the present invention;

Fig. 2 is a longitudinal sectional view tiakenl substantially along the line 2-2 in o Fig. 3 is a transversesectional view taken substantially along the line 33 Fig. 2;

Fig. 4 is a similar view taken substantially along the line 44 in Fig. 2;

Fig. 5 is a view similar to Fig. 3 being taken substantially along the line 55 in Fig. 2;

Fig. 6 is a transverse sectional view taken substantially along the line 6-6 in Fig. 2;

Fig. 7 is an enlarged fragmentary view of a portion of the apparatus disclosed 'in the left-hand upper section of Fig. 2;

Fig. 8 is a'view similar to Fig. 7, illustrating movableparts of the apparatus in a different position;

Fig. 9 is a sectional lan view taken subgtantiglly along the bro en line 9-9 in Fig.'

Fig. 10 is a transverse sectional view taken substantially along the broken line 10- 10 inFig. 7.

The apparatus selected as a preferred em bodiment of the invention comprises a magazine for keys,preferably having bent ends which are retained in stacked position and a magazine or runway .for cans which roll by gravity into the machine. The cans are individually cut out from the magazine and roll down the runway into a pocket of an intermittently movable turret or can conveyor. This turret is supplied witha plurality of pockets and a can after ente apocket is intermittently advanced into a ey receiving position.

'Ihe lowermost key in the key magazine is removed by a reciprocating slide or key feeding device and is positioned intoa transfer no key receiving and a key and can assembling position. In the former position the forward bent end of the key is located on top of an anvil block and its head portion is engaged by a key holder which holds it on the transfer member. This transfer member is then oscillated through approximately 90 degrees into its can and key assembling position where the bent part of the key is engaged with a seam of the can and the body of the key is positioned inside of the sunken panel of the can head or end.

Prior to this assembling operation, the can is centered in the turret and positively held while the key is being guided in its movement by a curved wall. A movable clinching die carried by the transfer member is then operated to squeeze the bent end of the key between the anvil block and the face of the die, bending or clinching it over theseam of the can. The key is then disengaged from the transfer member which moves back into its key receiving position for the next key. At the same time the can turret is given a step rotation and the can with key secured in position rolls down a runway and out of the machine.

The apparatus is supported on a bed 21 (Figs. 1, 2 and 4) formed with legs 22. A housing 23 carried by the bed 21 encloses some of the working parts of the apparatus and forms supports for other parts. This housing is formed with a horizontal wall 24 and is supplied with a cover member 25.

A can runway 26 is mounted on a bracket 27 secured to the housing 23 and provides a storage magazine or track for cans 28 to which keys are to be applied. This runway comprises a pair of spaced angle irons or rails 31 on which the cans 28 roll. A can conveyor is mounted for rotation adjacent the lower end of the runway 26 and comprises a disc 35 (Fig. 2) having a hub 36 which is keyed to a horizontal shaft 37 journaled in a hearing 38'formed in an auxiliary housing 39 mounted on and carried by the housing 23.

A second disc 41 is mounted on the hub 36 and is held in spaced relation to the disc 35 by a setscrew 42. A feather 43 sliding in a featherway 44 formed in the hub 36 prevents relative rotation of the disc 41 relative to the disc 35. This permits adjustment for different can heights.

A washer 45 may be interposed between the end of the hub 36and the bearing 38 to'relievefriction at this position. The disc 35is provided with spaced semi-circular pockets 51 (Figs. 3 and 4) and in a similar manner the disc 41 is provided with semi-circular pockets52 (Fig. 5). A pocket51 is in align- .ment with a pocket 52 and these aligned pocketscooperate to receive and hold a can body 28 as it rolls down therunway 26.

3 IThe shaft 37 is intermittently rotated in order to advance the conveyor discs 35, 41 by thereby a distance equal to thespace between 7 adjacent pockets. For this purpose the shaft 37 carries a spiral gear 55 (Figs; 1 and 2) which is of the interrupted thread type and which meshes with a spiral pinion 56 having some of its threads extended circumferentially to provide for a dwell 'of the gear 55 throughout a part of the rotation of the pinion in a manner well known in gears of this type.

Pinion 56 is mounted on and keyed to the upper end of a shaft 57 which rotates within a bearing formed by a-semi-tubular section 58 formed in a web 59 of the housing 39. This shaft is positioned at an angle to the vertical and is held in a rotating position by a bearing cap 61 bolted to the part 58 by cap screws 62. The shaft 57 at its lower end carries a bevel gear 63 which meshes with a similar gear 64 mounted on a horizontal cam shaft 65 extending throughout the major length of the apparatus. The shaft 65 is journaled at 66- in a lower extension 67 of the housing 39 and also in bearings 68 formed in the housing 23. Y

The shaft 65 is continually rotated by connection with an electrical motor 71 (Figs. 1 and 3) mounted on a bracket 72 carried by the base 22. This connection comprises a spur gear 75 (Figs. 2 and 5) keyed to the shaft 65 and meshing with an idler gear 76 rotating on a stud 77 carried in a bracket 78 extending inside orinteriorly of the housing 23. The gear 76 also meshes with a gear 79 (see also Figs. 1 and 4) keyed to a horizontal shaft 81 journaled in bearings formed in a bracket 82 carried by the housing 23. The gear 79 also meshes with a pinion 83 mounted on a motor shaft 84 of the motor 71 and in this way the shaft 65 is continually rotated from the .motor 71 but at a slower speed.

The cans 28 before being introduced into the machine proper. collect in the storage runway 26 (Figs: 1, 3 and 5) one behind the other, rolling on the angle irons 31. They are prevented from rolling further into the can conveyor turret by a forward stop finger 91 mounted on a rockshaft 92 oscillating in bearings 93 formed in arcuate plates 94.

These plates are located above the runway 26 and one on each side of the rolling cans 28. These plates are adjustably held in position on upwardly extending arms 95 formed integrally withthc side rails 31, each arm 95 being provided with a slotted section 96 in which is located bolts 97 forming the condescribed, the finger 101 is in raised non-canengaging position, indicated by dotted lines in Fig. 1. During the time the cans are so held and the fingers 91, 101 are respectively In low and high positions, the can conveyor formed by the turret discs 35, 41 is movingobserved, constitute an escapement device' which individually separates and feeds the cans from the runway magazine into a turret pocket.

This shifting of the fingers 91, 101 into their two positions is effected by simultaneous oscillation of'their respective shafts 92, 102. For this purpose, shaft 92 is connected with an arm 105 (Fig. 3) which is pivotally connected at 106 to the upper end of a tie block 107. In similar mannershaft 102 carries an arm 108 which is pivotally connected at 109 to a link 111 which also connects with the arm 105 and the block 107 at the pivot The tie block 107 is threadedly secured to a vertical rod 112 which is yieldingly connected with a tubular stem 113 of an eccentric strap 114. For this yielding connection the rod 112 passes through a nut 115 threadedly secured into the end of the stem 113 and extends inside of the tubular stem 113 where it the other end of the spring engaging a seck 0nd washer 121 surrounding the rod part 116. The two washers 117, 121 seat normally against the stem 113- and thenut 115 with the spring 119 in its expanded position and hold ing the washers in place.

The eccentric strap 114 (Figs. 1 and 3) and. an eccentric cap 125 joined thereto have operative connection over an' eccentric 126 secured to the shaft 81 (see also Fig. 1) When the throw of the eccentric 126 is holding therod 112 downwardly, this being the position illustrated in Fig. 3, the fingers 91, 101 are: in the position illustrated in Fig. 5, the forward finger 91 being raised above the line of travel of the cans 28 while the finger 101 4 is holding the line of cans in the storage magazine of the runway 26. As the eccentric guises the rod 1.12 shaft'92 (Fig. 3) is given i. partial rotation in a clockwise direct on through the intermediacy of the parts 105, 107 and at the same time shaft 102 13 given'a similar partial rotation in a counter-clockw.se direction, the parts 108, 111 being used.

- The finger 91 is thus depressed and the finger 101' is raised. The cans in the stora runway then roll forward until stopped y the foremost can coming into engagement with the finger 91, this being illustrated in dotted lines in Fig. 1.

During thi shifting of the fingers in either direction, should a can be caught under a descending finger so as to prevent the full finger movement, a yielding of the connection between the rod'112 and stem 113 takes place.

The spring 119 then allows for a relative change of position between the rod and the stem so as to permitfull movement of the rod 112 without a corresponding finger movement. This is accomplished as follows.

If the rod 112 is being pulled down and the lowering finger 101 strikes against a can 28 in the runway, the shaft 92 is prevented from turning and the rod 112 is held against further movement while the stem 113 continues its downward movement, the washer 121 carried thereby being 'slid along the rod section 116' under yielding action of the spring 119. During the upward movement of the rod 112, should the finger 91 engage a can in the runway and stop further rod and finger move- 'mentraising of the stem 113 continues and the washer 117 is slid along the rod section 116 against the action of the spring 119. In this way no damage is done to the machine parts on either stroke of the rod 112 and the shaft 81 is allowed to complete its regula revolution.

A can 28, coming into the conveyor pocket formed by the aligned disc pockets 51, 52 of the turret members 35, 41, is advanced byin-- termittent movement and brought to rest'at Keys 131 (Figs. 7 and 9) which are to be secured to the cans, are preferably provided with a head 132 and a shank 133 slotted at 134 in the usual manner. Such keys are also preferably provided with a flattened bent end 135 terminating in, a V-extremity having. legs 136, 137. vThesekeys 131 are retained in a key magazine in stacked formation, as illustrated in Fig. 7.

This magazine comprises a slotted holder 138 formed as an integral part of a bracket I 139 (see also Figs. 2 and 10) which is mounted on a magazine frame 141 secured at its rear end to an upper horizontal wall 142 of the cover member 25. This frame at its forwardend is formed with two spaced sidewalls 143 connected by cross sections or webs 1&4 which project forward of and beyondthe j and adjacent the forward disc of the can carrier.

The holder 138 of the magazine projects at its lower end into a recess 140 out through the frame 141 and the lowermost keys extend into this recess. The stack of keys during certain times rest upon a part of the wall 142 this art (designated by the numeral 145) exten in'g across the bottom of the key magazine.

The wall 142 is cut out at 146. (Fig. 2) to provide working space for key feeding devices which operate beneath the stack of keys in the magazine as will now be described. As illustrated in Figs. 2 and 3, the Wall 142 is slotted at 147 to provide a way for a slide 148 having longitudinal movement therein, the slide being held in its slideway by plates 149 secured by bolts 151 to the underside of the wall 142.

The slide 148 carries a cutout plate 155 which extends forward therefrom and which moves over the upper surface of the wall 145 and-beneath the stack of keys 131. When the keys are resting on the wall 145, the slide plate155 and the slide 148 are in retracted or rear position and the forward edge of the plate 155 is directly back of the lowermost key 131; The plate 155 isslightly thicker than the thickest partof the key.

As the slide 148' with its cutout plate 155 moves forward the lowermost key is engaged by the front edge of the plate 155 and is slid laterally from its position beneath the stack.

One of the forward frame sections 144 in front of the recess provides a vertical wall 156 (Fig. 7) the lower edge of which is spaced above the wall providing a slot 157. The cutout plate moves the lowermost key from the magazine and conveys it through the slot 157 while it provides a support for the other keys remaining in the magazine. The wall 156 forms a stop for these keys and prevents them moving out of stacked formation. In this way a single key is cut out and fed from the stack of keys- The slide 148 (Figs. 2 and 3) is supplied with downwardly extending ears 161 which form a support for a trunnion block 162 through which extends a bolt 163. Nuts 164 are threadedly secured to the bolt 163on opposite sides of the block and a spring 165 is interposed between the rear surface of the block and a-washer 166 held on the bolt by one of the nuts 164. This forms a yielding arm 169 keyed to a rockshaft 171 journaledin bearings 172 formed in the housing 23. The shaft 171 "also carries an arm 173 on which a cam roller 174 isrotatably mounted at 175. This roller operates within a groove 176 formed in a cam 17 7 keyed to the shaft 65. The stroke of the lever 169 is slightly in ex cess of the stroke of the slide 148 and at the forward end of the latter stroke the spring 165 yields and locates the fed key 131 under spring action. v

The web section 144 of the frame 141 is slotted at 181 (Figs. 7 and 10) to provide clearance for a finger 182 which is loosely mounted on a horizontally disposed pin 183 carried in the web. A forward end 184 of the finger lays in the path of travel of the key being fed by the plate 155, the finger normally resting against a tapered wall 185 of the frame 144. A spring barrel 186 has sliding movement within a vertical bore 187 formed in the frame 144 and confines a spring 188 therewith the bore. The outer end of the spring barrel 186 rests against the finger 1.82 and tends to force it downwardly against the wall 185. I

As the sliding key is moved against the end 184 of the finger 182, it lifts the latter against the action of the spring 188 and the key moves beneath the finger, the plate 155 also passing therebeneath. In this manner the key is under full control from the time-it is cut out from the bottom of the magazine until it is positioned on a transfer member preparatory to its movement into position on a can held in the can conveyor.

The can 28 at the station A adjacent its forward end rests upon a forward extension 191 (Figs. 2, 7 and 9) of the forward rail 31 which at this position rests on top of a bracket 192 mounted on the wall '24 of the housing 23. The forward end of the extension 191 projects beyond the station A and engages a second bracket 193 similar to the bracket 192 being also mounted on the wall 24 of the housing 23.

' This extension 191 adjacent the station A is cut back or slotted at 194 and its forward wall is bent outwardly at 195, this wallterminating adjacent the beginning of the slotted portion 194. The forward part of the can 28 at this station rests upon this extension 191. The forward head or end of the can, designated by the numeral 197, is joined to the can body in a double seam 198 which projects within the slot 194 clear of the rail part 191.

The rear rail 31 of the runwayterminates I short of the station A (Fig. 5) and the rear part of the can 28, as it reaches this station, passes off of the rail 31 and onto a projecting ledge 201 (see also Fig. 2) formed in a vertically disposed block 202 in line with and directly beneath the shaft 37. The block 202 is secured by bolts 203 to the forward end of a disc 204 which has a stem 205 projecting into the forward end of a threaded bar 206 having sliding movement within a bearing 207 formed in the housing 39 and in a bearing 208 formed in the web 59. The outer surface are flattened or smoothed to prevent wearwhile sliding within the bearings 207, 208.

The stem 205 is yieldingly connected within the bar 206, a spring 209 being interposed therebetween, as illustrated in Fig. 2. This stem is circulnferentially recessed at 211 and a pin 212 projecting into the'recess and secured to the bar allows for slight longitudinal movement between the members 205, 206

while holding them against accidental dis placement.

The'block 202 is in its retracted position (Fig. 2) when the can 28 first comes adjacent, following which the can is centered prior to receiving a key. As a step in this centering operation, the block 202 is moved forward against the can and through a clearance opening 213 (Figs. 2 and 5) cut in the disc 41 adjacent the turret pocket 52, there being as many openings as turret pockets. This movement'is effected by sliding of the bar 206 within its bearings 207, 208 in the following manner.

A rectangular block 215 (see also Fig. 6) is clamped in adjusted position. on the bar by a. bolt 216,.the side walls of the block being vertically grooved at 217. Rollers218, car-V ried on pins 219 fixed on a bifurcated end 221 of'an arm 222, slidingly engage within the grooves. I The arm 222 is an integral part of a sleeve 223 which is mounted on a horizontal shaft 224 secured within bearings .225 formed in the casing 39. The sleeve 223 is also provided with an arm 226 which carries a cam roller 227 engaging within a cam groove 228 of a cam 229 keyed to the shaft 65. This cam thus rocks the arms 226, 222 and slides the block 202 into can engaging position.

Simultaneously with this movement the forward head 197 of the can isengaged by a can centering device embodying an arm 235 (Figs.

Ice

' 8 and 10) which hangs down from a shaft 236 supported in bearings 237 formed in the upper part of'the side walls 143 of the frame 141. The arm 235 is enlarged at its upper end, at 238', and swings within a slot 239 formed in the frame section 144.

This part 238 is slotted at 241 to provide clearance fora cam roller 242 having free movement on a pin 243 carried in the arm, the cam roller 242 operating against a cam surface 244 formed in a face cam 245 carried [onand rotating with the disc'35 of the can conveyor. A spring 247 is located within a horizontal bore 248 formed in one of the frame sections 144. and engages a spring bar- 'rel 249 which has sliding movement within the bore and whichprojectsagainst. the arm 235 holding the same -so that its cam roller 242 atall times engages thecam' surface 244. .HThe'cam surface 244 (Figs. '4 and 8) ad' j acent each turret pocket is depressed sufiiciently'to. allow the. cam roller 242 to 'move inwardly under the action of the spring 247 'bearin when a can in the turret pocketis at rest at the station. In such position a lower extension 251 of the arm 235 rests against the forward end 197 of the can, yieldingly clamping the can against the block 202, in

which position it is ready to receive a key.

The transfer member previously referred to, comprises abody 260 (Figs. 2, 8 and 9) which is laterally extended in. projecting shafts 261, 262 journaled' for oscillation in 263, 264 formed respectively in the brackets 192, 193. The body 260 is adapted to rest in one of two positions, horizontally in a key receiving position and vertically in a key assembling position. As a key 131 is moved under the finger 182 by the cut out plate 155, as previouslyv described, it is moved onto the upper surface of the body 260.

The body 260 adjacent one end is projected upwardly a slight distance above its upper surface to form two bosses 270, 280 in each of which is a tapered side wall 265 and a straight wall 266. The two tapered walls 265 and the two walls 266 are disposed op-.

the key and holds it in its forwar posltion.

To effect such a holding the body 260 is slotted at 271 along its under surface to proeeding device vide a slideway for a plate 272 which pro ects beyond both ends of'the body being held in its slideway b% a clamping plate 273 secured thereto. he .rear end of the slide plate 272 isformed with spaced posts 275 Fi 7 9 and 10) and a. right angle clip 276 is to the outer wall of each post and each cli at its to extends inwardly to provide a honzontal c amping section 277 which is spaced above the upper surface of the body'260 e' distance slightly more than the thickness of the head of the key.131.'

The cover frame wall is cut out at 27 8 to rovide clearancefor the rear end of the sli e 272, its posts 275 and the key clamps 276. As the key is being moved into its tion on thetransfer member the slide posts 275 and itsclips 276 within the clearance 2 is toward the left as viewed in Fig. 7, with its opening 278. As the key feeding members 148, approach the end of thelr forward stroke, this being during movement of the 1 key into its position on the anvil block, the

slide 272 is engaged by a. finger 281 which is pivoted on a pin 282 carried in ears 283 projecting forward from a section 284 of the slide 148. r

The finger 281 is laterally extended at 288 and. is engaged by a spring barrel 289 which slides within a horizontal bore 291 formed in the section 284. A spring 292 is located in the bore and extends within the barrel 289 normally holding it outwardly and rocking the finger 281 into its upper position,

as illustrated in Fig. 7. In this position a stop wall 293 formed in the finger 281 en gages the forward end of the section 284 and limits the upward movement of the finger. This pivotal mounting of the finger 281 is for a purpose hereinafter explained.

The plate 272 is held in one of its two positions by a spring pressed ball detent illustrated in Figs. 7 and 9, the upper surface of the slide 27 2 being recessed at 295, 296 and a ball 297 resting within one or the other of I cess 296.

A clinching die unit is mounted upon the body 260 and. this comprises a cylindrical clinching die 311 which has sliding movement within a bore 312 formed in the section 301. The die 311 is cut back at 313 to permit passage of one end over the upper surface of the body 260 and the anvil block 268. A longitudinal bore 315 is formed in the die 311 and a spring 316 is located therein. One end of the spring projects against a sliding pin 317 which engages a wall 318 of the body 260.

The spring 316 normally holds the die 311 in a position away from the anvil block 268. A laterally extending stop 321 carried by the die 311 and moving within a slot 322 formed in the section 301 of the body determines the amount of travel of the die within its bore. The end of the die is formed with a curved clinching surface 323 which is adjacent the bent end of the key 131 held in position on the body 260.

With the parts in the position illustrated in Fig. 7 the transfer member is moved through an angle of substantially 90 degrees from the horizontalposition illustrated in that figure into the vertical position illustrated in Fig. 8, this being accomplished by an oscillation of the shafts 261, 262 within their bearings. This oscillation is effected by a device comprising a pinion 331 (Figs. 4 and 9) which is secured to the end of the shaft 261.

This pinion is engaged by rack teeth 332 of a segmental gear 333 formed on the outer end of an arm 334 having a hub 335 (see also Figs. .2 and 5) which is loosely mounted on a stud 336 secured into one of the walls of the housing 23. A projecting arch 337 is formed in the hub 335 and extends beyond one face thereof. An arm 338 having a hub 339 is also loosely mounted on the stud 336 adjacent the arm 334. This arm 338 carries a pair of sleeves 341 formed integrally therewith and each sleeve carries a spring barrel 342 which engages against one; side of the arch section 337 of the arm 334. Each spring barrel 342 has sliding movement within its sleeve 341 and is engagedby a spring 343 which is held therein by a screw plug 344.

The two spring barrels 342 and their associated springs provide a yielding connection between the arms 334, 338. As the former is moved by movement of the latter, any jam or obstruction interfering with free oscillation of the transfer member is taken up by a yielding of one or the other of the springs 343 in the arm connection. In this way damage to the mechanism is prevented.

The arm 338 carries at its lower end a pin 351 on which is mounted a cam roller 352 which operates within a cam groove 353 of a barrel cam 354 keyed to the shaft 65. Rotation of the shaft and the cam causes oscillation of the arm 338 which is transmitted through the yielding connection just described and .which imparts a rocking movement to the arm 334 and through the rack teeth and pinion oscillates the shafts 261, 262

and the transfer body 260 and moves the key from its received osition, (Fig. 7) into the key and can assem ling position (Fig. 8).

During this quadrant movement of the key with the transfer member the outer head of the key is guided along a curved guide wall 361 (Figs. 8 and 10) formed in a plate 362 inserted in slots 363, 364 out out of the frame sections 144. The upper end of the curved wall 361 is in alignment with the curved lower wall formed in the lower extension 251 of the key centering arm 235, the plate 362 extending through a slot 365 out in the extension. This guiding wall positions the key within the panel of the can head 197 with the leg 136 of the V-shaped key end inside of the panel and adjacent the double seam 198 of the can and with the key wall 137 outside of the double seam. In this assembled position the wall 136 rests between the projection 267-of the anvil block 268 and the wall of the can head.

Mechanism now operates to slide the clinching die 311 forward so that its clamping face 323 engages the wall 137 of the key end and bends it around the seam 198 clinching it firmly in position. This movement of the clinching die 311 will now be described and reference should be had to Figs. 4 and 8.

The rear end of the die 311 is provided with a projection 371 which moves, upon the oscillation of the transfer member, into a position directly above a recess 372 formed in a vertically sliding hammer 373 adjustably mounted in the upper end of a slide 374 (see also Fig. 2) havi lateral extensions 375 for engagement in s 'deways 376 formed in a. wall 377 of the housing 23. Plates 378 are secured by bolts 379 to the wall 377 and retain-the slide 374 in its slidin position. .A spanner lock nut 381 threade ly secured on the hammer 373 holds it in its adjusted and the. rails 409 in position toali threaded position within the slide'374.

The slide 374 is recessed at 382 to provide working clearance for a block 383 having a slight vertical movement within slideways '384 formed in the slide 374. A spring 385 is interposed between the block 383 and the slide 374 adjacent the upper end of the re-' cess 382 and provides a yielding connection extending rod 391 passin loosely throng the block 383 is threaded y secured in the slide 374 and a nut 392 threadedl carried on the lower end of the rod hol s the block ainst displacement within the slide 374 and places the proper tension upon the s ring 385. Upon raising of the slide 374 an hammer v37 3, the latter engages the clinching die 311 and forces it upwardly against the action of its spring 316. The device for raising and lowering the slide 374 and the hammer 373 in proper time with the other operations of the machine comprises a cam 395 mountedon the shaft and having a cam groove 396' which engages acam roller 397 loosel mounted on an extension-398 of the bloc 383. In this way the clinching die 311 is operated but always under the compression of the spring 385 which insures a proper clinching action while allowing for any slight variation in the key or in the seam of the can. During lifting of the slide 374 the plate 272 is engaged and moved relative to the transfer body 260 (see Fi 8) and the key holding clips 276 are detac ed from the hollowing the clinching operation the can conveyor :1

vances a further ate in its rotation and moves thecan with its attached key, designated by the numeral 401 in Fig. 4 from the assembling station where it rolls off of the projection 201 of the plate 202and along the end of the extension 191 of the runway (see also Fig. 9). A bar 402 is mounted on the-front sideof the runway strip 191'and is bent outwardly at 403 to provide a guide for the rolling can.

The can then rolls onto spaced guide rails 409 (Figs. 4 and 5) carried b a'bracket 404 pivotall mounted at 405 on a It 406 carried in brac ets 407 secured to the housing 23. Clampingbolts 408 hold the bracket404 and with the lower end of the can runway. e rolling F can asses along the rails 409 and out of' the mac ine.;

'Durin .rthis discharging operation the I the trans er member is again returned to horizontal position to receive another key,\the

hammer 373 and slide 37 4 moving out of the way. As the transfer member reaches itslowered position, the slide 148 has not been full retracted and theextended plate 272 st es a ainst the finger 281 before it can be move out of the way. This finger, how-.

stood from the foregoing descripfion, and it between the parts 374 and 383. A vertically will be a parent that various 0 anges may be made in the form, construction and arrangement of the parts without departing from the spirit and scope of the invention or sacrificing all of its materialadvantages, the form hereinbefore described being merely a preferred embodiment thereof.

I claim: I

1. A key attaching machine,"co'mprising in combination, a can conveyor for receiving and holding a can in key receiving position means for positioning a ey on said can, an means for bending a portion of the key for securing said positioned key on said held can.

2. A key attaching machine, comprising in combination, a can conveyor for receiving and holding a seamed can in ke receivingl OSltlOIl means for. llilOIllIl a e 011 sai ding a portion of the key for securing said positioned key on the seam of said held can.

3. A key attaching machine,- comprising in combination, a can conveyor for receiving and holding a can in key receiving position, means for positioning a key having a flatcan, and means for tened end on said can, and means for bending said flattened key end over a part of said held can to secure it thereon.

4. A key attaching machine, comprising in combination, key feedin devices, a can conveyor, transfer means or receiving a ke' from said feeding devices and positionin It on a can in said conveyor, devices for hol mg 5. A key attaching machine, comprising 7 in combination, key feeding devices, a can conveyor for moving a-can ina plane sub stantially at right an les to the plane of movement of said fee ing devices and for holdin said can with an end thereof in position a acent one end of said feedin devices, and transfer means for'receiving a e from said feeding devices and movingit t rou h an'arc of travel into osition on and paral el with the end of said eld can.

6. A key attaching machine, comprisingin combination, key feeding devices, a can conveyor for movlng a can in a plane substan Q tially at right angles to the plane of movement of said feeding devices and for holding i and holding cans in key receiving position,

transfer means for individually removing a key from said feeding devices and positioning it crosswise of the axis of the can on a held can in said conveyor, and means for securing the said positioned key on said can.

8. A key attaching machine comprising in combination, a magazine for keys, feeding devices for removing keys one at a time from said magazine, a magazine for cans, a can conveyor for receiving and holding cans in key receiving position, timing means for con-- trolling the individual feeding of cans into said conveyor, transfer means for individually removing a key from said feeding devices and positioning it on a held can in said conveyor, and means for bending a part of the key and thereby securing the said positioned key on said can.

9. In a key attaching machine, the combination of a can conveyor for receiving and means during its transfer thereby, centering devices for engaging the ends of said can to hold it in exact key receiving position and for guiding, said key during its transfer, devices forholding-the key at and parallel with an end of the can, and meansfor securing said positioned key'on said held can.

11. In a. key attaching machine, the combination of a can conveyor for receiving and holding cans, transfer means for placin a, key in position on a said held can, a key holder for holding said key on said transfer means during its transfer thereby, centering devices for engaging the ends of said can to hold it in exact key receiving position and for guiding said keyduring its transfer, means for securing said positioned key on said held can, and means for releasing said key from said holder.

12. A key attaching machine comprising in combination, an oscillating transfer member, an anvil block carried by said member, feeding devices for successively positioning individual keys on said member with a bent end thereof resting on said anvil block, a key holder mounted on said member for engaging the said key and holding its end on said anvil block, and means for oscillating said transfer member to move said held key on to a positioned can while the said anvil block locates the bent end of the key over a projecting part on the can.

13. A key attaching machine comprising in combination, an oscillating transfer member,

an anvil block carried by said member, feeding devices for successively positioning individual keys on said member with a bent end thereof resting on said anvil block, a key holder mounted on said member for engaging the said key and holding its end on said anvil block, means for'oscillating said trans fer member to move said held key on to a positioned can while the said anvil block 10- rates the bent end of the key over a projecting part on the can, and a key guiding member for directing the key in a proper path of travel during its transfer to the can by the said transfer member.

14. A key attaching machinecomprising in combination, an oscillating transfer member, an anvil block carried by said member, feeding devices for successively positioning individual keys on said member with a bent end thereof resting on said anvil block, a

clinching die movable on and carried by said member, a key holder also mounted on said member for engaging the said key and holding its end on said anvil block, means for oscillating said transfer member to move said held key onto a positioned can, the said anvil block locating the bent end of the key over a seam of the can, and means for'moving said clinching die to force the bent end of the key against the said anvil block and clinch ity in secured position over the said can seam.

15. A key attaching machine comprising in combination, an oscillating transfer member, an'anvil block carried by said member, feeding devices for successively positioning individual keys on said member with a bent end thereof resting on said anvil block, a clinching die movable on and carried by said member, a key holder also mounted on said member for engaging the said key and holding its end on said anvil block, means for oscillating said transfer member to move said held key onto a positioned can, the said anvil block locating the bent end of. the key over a seam of the can, means for moving said clinching die to force the bent end of the key against the said anvil block and clinch itin secured position over the said can seam,

and means for releasing said key holder from said key to disengage it from said transfer,

member.

16. In a key attaching machine the combination of a, can conveyor for receivin and holding cans, transfer means for placmg a key in position on a said held can, centering devices for engagin "the ends of said can to holdit in exact ey receiving osition, means for securing said positioned key on said held can, and ad 'usting means for changing said centering evices to adapt them to cans of difierent size.

WILLIAM PEOHY.

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