US1245922A - Stop-motion for canning machinery. - Google Patents

Description

R. M. H'UDDLESTON.

STOP MOTION FOR CANNING MACHINERY.

APPLICATION FILED Oct. 19. I914.

Patented Nov. 6, 1917.

4 SHEETS-SHEET I.

R. M. HJUDDLESTON.

S TOP MOTION FOR CANNING MACHINER Y.

APPLICATION FI LED cr.19,1914.

Patented. Nov. 6, 1917.

4 SHEETS-SHEET 2- R. M. HUDDLESTON. STOP-MOTION FOR CANNING MACHINERY.

APPLICATION FILED OCT. 19. I914.

Patented N016, 1917.

H M. HUDDLESTON. STOP MOTION FOR CANNING- MACHINERY. APPLICATION FILED ocr.19.1914.

4 I 73 (I r 68 4 I III INHI- Patented Nov. 6, 1917, i

W D cram Ynornnr M. nnnnrnsronfor sen rnn vcrs'co, climroianrn.

s'ror-norro'n ron Gimme MACHINE I To all whom it mayv concern: -Be it known that I, ROBERT M. HUDDLE- STON, a citizen of thesUnited States, residing in the city and county of San Francisco and State of California, have :invented-a new and useful Improvement in a St0p- Motion for Canning Machinery, of which the following is a specification. f

- My inventionrelates toa stopmotiondevice for canning machinery, wherein parallel cams operate in unison witli the machine while workingproperly andwherein one of the cams is retained in such-a position that the other cam will automatically operate to release the machine from the driving mech anism; and the object of my invention is to provide improved means for automatically disengaging'the machine from the: driving mechanismthereof when certain portions of the machine fail to operate properly.

I accomplish this feature by means of the device disclosed in the drawings forming a part of the present specification, where- ;in like characters of reference are used to designate similar parts throughout the said specification and drawings, andin which Figure 1 is a broken side elevation of the 'machine disclosing the device attached thereto, also disclosing the manner inwhlch the cans are fed into .the machine and the various cams by means of .wliichlthe several parts of the machine are operated.

Fig. 2 is a broken plan View of the. machine disclosing my device-attached thereto, the driving clutch'bymeans of which the machine is driven andthe various parts by means of which the cans are'fed to afilling position. 1 Q 1 Fig.3 is an enlarged broken plan view of the can feeding'me'chanism onan: enlarged scale, the full lines indicating one extreme positionof the said mechanism and the'dotted lines indicating the'iother extreme position, disclosing 'themanner in which the pa-rallel cams'operate in unison with the can feeding mechanism when. the said mechanism is unobstructed. I

Fig. 4 is an enlarged-sectional plan view of the parallelcams in the position indicated in Fig. 3, disclosing the inannerrin which'the operating peripheries of the said cams coincide and do not affectthe operat ing pin when the several parts of'the 'can feeding mechanism are operating properly.

Fig. 5 15541 view s1m1lar"to'F1g.1-3 but dis- {closing theslide operating: mechanism withspeciiidatiionof Letters r t-em.

-App1icatiohfi1ed October 19 1914. SerialNo. 887,556.

1 a l d. NQY? .1791

yhelid' anddihetop p lllpcamrotatin on its axis on the bottom parallel cam to, operate the-releas ng pin.v r 1 F1g;--6 is an enlarged-plan view ofthe parallel cams in the position disclosed. in I Fig. 7'is. :avvertical.sectionalqview taken I v on line17 .7aof ltig. 6.;ofthedrawings, disclosing the mannenin wh ch the upper cam isiotatably mounted .uponzand eccentric to "the lower cats. I

' Fig. .Swisan enlarged front elevation of the tripping lever disclosingthemanner in whlfi lllltls operated the releasing pin.

c --E1g. .c9,1s; a broken side elevation of the clutch'releasing mechanism.; 1

In order to fully comprehend theinvention-itisnecessary to describe that portion --0f a certain can fillingmachine means of which the stop motion is operated.

i Referring .to the drawings, the numeral ,1

(is used todesignate the frame of .the ma- ,ch1ne,- toi which rigidly. secured a a lateral shaft 2-uponwh1chis rotatably mounted a pinion 3, said pinion, 3 beingrigidly connected to'a disk l whiclris' arranged to.com-

press between :itself and the surface of a -.dr1v1ng pulley 6, thefriction disk.'7 pro- .vided with cork inse'rts'S. r

, The diskl is held in engagement with the into engagement wit-lithe driving pulley 6 and the disk 7: thereof, therebyrotating the pinion 3 and-the gear- 18 with ,which the pinion?) is in mesh.

The gear 18: is rigidly secured to-(maria ing shaft 20: which ;.is provided; with a; cam 22 arrangedito engage the lowerend 24 of a lever: ,26 pivotally "mounted as at 27 z to a ;,suitable bracket: 28 secured to the'frame 1.

; Afs the-cam22lis rotated it imparts a-reciprocating movement to the lever 26,-which imovementcis' imparted to a connecting rod :31 pivotally connected to.tl1e-upp e r end of the lever26-and to a lever 32, ,th'e l'atter-being provided with a pawl 3-1 arranged to engage the ratchet 36 of the can feeding member 37, said reciprocating movement being thereby arranged to impart an intermittent rotation to the said can feeding member 37 in the direction indicated by the curved arrow in Fig. 1 of the drawings. As the can feeding member 37 rotates, it receives the cans 38 from the runway 39 and, conveys the said cans one at a time, onto a slide 40 slidably mounted within a table 45 of the frame 1. p

The slide 40 is provided with a vertical extension 41 which is arranged to engage a can 38 on the slide 40 and convey the said can 38 to the horn 54 of the feeding hopper 55, by means of the following mechanism.

A suitable link 42 is pivotally connected to the slide 40 and to the arm 43 of a bell crank lever pivotally mounted as at 44 upon the under side of the table 45. The other arm 46 of the bell crank lever is provided with a rotatable swivel 47 arranged to slidably engage a reciprocating rod 48 which is pivotally secured to a lever 49 arranged to be engaged by a second cam 51 rigidly secured to the drive shaft 20. r

From the above it is evident that as the driving pulley 6 rotates the pinion 3, a rotary movement is imparted to the gear 18 and shaft 20 thereof, which movement, by means of the can feeding member 37 and connections thereto, and the slide 40 and connections thereto, will convey cans from the runway 39 to the said slide 40.

Duringthe return movement of the rod 31, and while the can feeding member 37 is at rest, being held against rotation by the dog 35, the cam 51 and connections thereto, will operate the slide 40 and carry the can 38 onto the horn 54 of the hopper 55.

A plunger or other suitable stuffing mechanism not shown, fills the can 38 on the slide 40 and returns the said can-38 with the return movement of the said slide 40 to the normal position of the said slide as shown in Fig. 2 of the drawings.

Briefly, every movement'of the can feeding member 37 will convey an empty can 38 from the runway 39 onto the slide 40 and simultaneously convey a filled can from the slide 40 onto the delivery chute 50.

During this movement, cans very frequently become jammed between the vertical extension 41 of the slide 40 and the horn 54 0f the hopper 55,'and before the machine canbe stopped it sometimes happens that several cans will be piled up and jammed together. When cans are jammed in this manner it necessitates considerable *loss of time andalso a loss of material until the machine can be again placed in proper operating order. Sometimes the cams and connections are broken by the strain and this incapacitates the machine until repairs can be made. a

The present invention provides a means whereby the machine is instantly disconnected from the driving wheel 6, by releasing the link 14 connected to the lever 16 as soon as any undue resistance is applied to the slide 40 by reason of a can 38 becoming jammed therein or from any other reason.

This means may be described as follows:

A lever 57 is pivotally mounted upon the frame 1 as at 58 and is provided with a shoulder 52 arranged to engage the under side of the link 14 and thereby retain the lever 16 in a position where the yoke 9 will retain the disk 4, secured to the pinion 3, in engagement with the disk 7 of the driving pulley 6, as disclosed in Fig. 2 of the draw ings. v

To the lower end of the lever 57 is pivotally connected a rod 61 which is slidably mounted within a suitable staple 62, the free end of the rod 61 being provided with a beveled end 63, the purpose of which will hereinafter be more fully set forth.

A suitable spring 64 is connected to the rod 61 andstaple 62 and serves to normally retain the shoulder 59 of the lever 57 under the link 14. The beveled end 63 of the rod 61 is also normally held, by means of the spring 64, against the frusto-conical end 66 of a releasing pin 69 slidably mounted within the housing 67 of a suitable bracket 68. The releasing pin 69 is provided with a collar or annular flange 71 and between the said flange 71 and the end of the housing 67 is interposed a spring 72 arranged to normally retain the innerend of the releasing pin 69 against the operating peripheryor surface of the upper cam 73 which is eccentrically and as at 74, pivotally mounted upon a second'cam 76, said-cam 76 being in turn pivotally mounted within the bracket 68.

, A connecting rod 77 connects the cam 76 with a collar 78 slidably mounted on the rod 48 which operates the slide 40, while a similar connecting rod 7 9 connects the cam 73 with the end of a rod 81 which isin turn pivotally connected to a collar 85 upon the rod 48. The collar 85 isheld against movement on the rod 48 by means of a suitable stud 82.

A connecting rod 83 connectsthe outer end of the rod 81 with a collar 84 on the rod48 which collar 84 is held against movement on the said rod 48 by means of a suitable stud 86.

By loosening the stud 82 and moving the collar 85 thereon to the left, the connecting rod 83 will swing outward on the stud 86 andthereby cause the link 7 9 to move the rod 48 and a collar 89011 the end of the said rod 48 isa spring 88 which serves to keep a collar 90, rigidly secured to the rod 48, normally against the swivel 47 which ispivotally mounted upon the'arm 46 of the bell crank lever pivotally mounted upon the table 45. l u

In this manner the said bell cranklever is caused to'normally move when'the rod 48 moves.

Y The operation of the automatic releasing device is as follows: I 1 While the machine is operating properly, that is, the member 37 is carrying and removing cans 38 to and fromv the slide 40,'the

movement of the reciprocating rod 48 will cause by means of the various connecting rods 77, 79, 81 and 83, the cams73 and76 to move in unison on the pivot of the cam 76 and the releasing pin 69 will not be affected (as disclosed in Figs. 3 and 4 of the drawn t Should an imperfect or bent can or any other obstruction, unduly retard the action of the slide 40; the arms 43 and 46 of the bell crank lever will'likewi'se be held against movement and theconnecting rod-77*will likewise prevent a'furthermovement of the cam 76. As the movement of the rod 48 however, is continued by the action of the lever 49 and cam 51 onthe shaft 20, such movement will not only be takenup by the compression of the spring 88 without straining or breaking the bell "crank lever connected to the slide 40, but the said continued move-' ment of the said rod 48 will cause the connecting rod 79 to partially rotate the cam 73 on the center 74 and thereby cause the said cam to move the releasing pin 69 against the tension of the spring 7 2 and also against the beveled portion 63 of the rod 61, as disclosed in Figs. 5 and 6 of thedrawings.

As the frusto-conical end 66 of the releasing pin 69 moves against the beveled end 63 of the rod 61. the said rod 61 Will cause the i lever 57 to release the link 14Land the yoke 9 will release the disk 4from engagement with the disk of the driving pulley 6, such release being facilitated by the resiliency of the cork inserts 8 of the disk 7.

It is obvious fromthe foregoing that I have provided improved means for instantly releasing the machine from the driving mechanism thereof should the severalv parts thereof cease to operate properly by means of a can being jammed therein or for any other purpose.

Briefly, the operating surface or periphery of the cam 7 3 that engages the releasing pin 69 will. be retarded as rapidly by the rotation of its eccentric center on the cam 76 as the said surface is forwarded by the action of the rod 48 and connecting rod 79 as long as both cams operate in unison, that is to say, that the said periphery of the cam 7 3 will always be concentric with the center of rotation of the cam'76 as long'a's both cams operate in unison-Q whe the movement a" the, cam 76 is a machine is thus instant1y=released,- it ;is evident that the machine will"bestoppedv and the member will cease to: feed. cans .to the slide 40. 1 1

1 Having thus described my invention what I clalm as new and desire to secure by LettersPatent'1s' ta-rdedby, reason of the slide-4O becoming 7 1. :In a stop motion"the combination of a driving elementi driveirmec'hanism; a" suit able clutch to normally disengage the driven mechanism from the driving element; a lever having 1 a shoulder "thereon toengage and retain the clutch in driving relation with the driven -inechanism; a rod slidably a mounted upon ther inachine 'and pivotally connected ivitlrone' end' of the lever, "the other endof said rod being'beveledj'a releasing pin slidably mounted within themac'hi'ne and having a frustoconicalf end to engage the bevelechend of the "rod; a cam pivotally mounted within the machine and mounted upon the first mentioned cam and arranged to engage and operate the releasing pin and theislidable rod to release the clutch and thereby disengage the driving element from the driven mechanism when an undue resistance is offered to the said driven mechanism.

2. In a stop motion the combination of a driving element; a driven mechanism; a feeding mechanism operatively connected to the driven mechanism; a clutch secured to the driving element to normally disengage the driven mechanism; a lever to normally retain the clutch in driving relation with the driven mechanism; a rod slidably mounted upon the machine and having a beveled end and the other end pivotally connected to the clutch retaining lever; a releasing pin slidably mounted within the machine and having a frusto-conical endto engage the beveled end of the rod; a cam pivotally mounted within the machine and operatively connected ith the feeding mechanism; and

a second cam eccentrically mounted upon the first mentioned cam and operatively connected to the driven mechanism and arranged to operate the releasing pin and slidable rod and thereby release the clutch from the driven mechanism when an undue resistance is offered to the feeding mechanism.

3. In a stop motion the combination of a "operatively connected to the driven" mech- "anism; and a second cam eccentrically' driving element; a driven mechanism; a

feeding mechanism; a reciprocating rodyieldingly connecting the feeding mechanism to the driven mechanism; a clutch secured to the driving element and arranged to normally disengage thedriven mechanism; a lever pivotally mounted upon the machine to retain the clutch in engagement With the driven mechanism; a rod slidably mounted upon the machine and pivotally connected to the lever at one end and having the other end beveled; a releasing pin slidably mounted Within the machine and having a frnsto-conical end to engage the beveled end of the rod; a cam mounted upon the'machine and opcratively connected With the feeding mechanism; a second cam eccentrically mounted upon the first mentioned cam and operatively connected to the driven mechanism, said second mentioned cam being arranged to operate the releasing pin and slidable rod and lever connected thereto to release the clutch from the driven mechanism When the first mentioned cam is held stationary by an undue resistance offered to the feeding mechanism.

4. In a stop motion the combination of a driving element; a driven mechanism; a feeding mechanism; a reciprocating r0d yieldingly connecting the feeding and driven mechanisms; a suitable clutch secured Copies of this patent may be obtained for to the driving element and arranged to normally disengage the driven mechanism; a lever arranged to retain the engage of the clutch with the driven mechanism; a slidable rod connected at one end With the lever and having the other end thereof beveled; a slidable releasing pin having a frustoconical end to engage the beveled end of the slidable rod to move said rod to operate the lever and thereby release the clutch; a cam operatively connected to the reciprocating rod at the driven mechanism end; a second cam eccentrically mounted upon the first mentioned cam and slidably connected to the feeding mechanism end of the reciprocating rod; and means for operating the first mentioned cam with the feeding mechanism whereby said cam may be held stationary when an undue resistance is ofiered to the feeding mechanism andthereby cause the eccentrically mounted cam to operate the releasing pin and release the clutch from the driven mechanism.

In Witness whereof I hereunto set my signature in the presence of two subscribing Witnesses.

KARL F. SCHULTZ, JAMES F. MoCUn.

five cents each, by addressing the Commissioner of Patents, Washington, D. C.

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