US1052032A - Can-sealing machine. - Google Patents

Description

moo 21 J. G. BOWERS 8: H. P. TOWNSEND.

OAK SEALING MACHINE. APPLICATION r unnwn :2, 190's.

Patented Feb. 4-, 1913.

a sums-sum '1.

LG. BOWERS & H. P. TOWNSEND.

Patented Feb. 4, 1913.

s sums-sum 2 CAN SEALING MACHINE. APPLICATION FILED JULY 22, 1909.

Zaizzzessesx fmw $5M.

J. C.-BOWERS & H. P. TOWNSEND:

CAN SEALING MACHINE.

APPLICATION FILED JULY 22, 1909.

1,052,032. Pa en e Feb.4,1913.

43 3 SHEETS-SHEET 3. F 6 24 "\Z/Q Q n Zlg n0 4/ 4 @544 f 6 ZO'Zfizesses) UNITED STATES, PATENT OFFIC JOHN C; BOWERS, E BOSTON, MASSACHUSETTS, ANIDHARRY P. TOWNSEND,

BURY, CONNECTICUT, ASSIGNORS TO WILLIAM H. EMERSON, OF NEWTON, CHUSETTS, AND ARTHUR H. PARKER, OF BEDFQRD, MASSACHUSETTS.

CAN-SEALING MACHINE."

To all whom, it may concern:

. in the county of New Haven and State of Connecticut, have invented a new and Improved Can-Sealing Machine, of which the following is a specification.

Our invention relates to the class of machines employed for sealing cans, more especially those composed of thin metal, and the object of the invention among others is to provide a machine of this class withflwhich cans may be effectually sealed in an el ipedi tious manner and with little labor.

One form of machine in the use of which the objects sought may be attained is illustrated in the accompanying drawings, in which Figure 1 is a perspective view showing the front of a machine embodying our invention. Fig. 2 is a perspective view, scale enlarged, of the lower part of the machine showing the rear and side. Fig. 3 is a detail perspective view,,scale enlarged, of a portion of the lower part of the machine with the parts broken away to show construction. Fig. 4 is a detail view in central vertical section, scale enlarged, over Figs.

2 and 3, tliroughtlie holding'die, showing especially its cap andthe removable end of the presser. Fig. 5 is a detail top or plan view showing the holding fingers and their connections. Fig. 6 is a view in horizontal section through the machine, the die clamp being removed. Fig. 7, is a view in front elevation, partially in vertical section, cut through the holding dies. Fig. 8 is a side View of the machine the main shaft being cut away and the fly wheel removed.

In the accompanying drawings the numeral 10 denotes the.bed or base of the machine that may be supported upon any suitable standard, as legs 11 or the like. A frame including side parts 12 and a head 13 rises from and is supported on the base, and a driving shaft 14: to which a fly-wheel 15 is secured is rotatably mounted in said head. The driving shaft may be driven from any suitable source of power and is formed be Specification of Letters Patent;

lug is located opposite said v plate. A pi-v 30 is secured to the slide plate 28 andf'lug 29, and two sections '31, 32 of a holding die 4 are mounted on this pivot-as by meansjof" I MASSA- mounted in slide-ways between the 'straps18 tween the side parts of the hea-d intofa crank on which a pitman 16' is mountedto connect the crank with a. sliding block- 17 53 mounted in the drivingshaft 14 and is spring-pressed in a manner welLknownTin devices of this klnd toward the fly-wheel'15,

a socket in which wheel the bolt-engages' to connect said wheel with the driving shaft.

A clutch lever 20 is pivotally supportedas at 21 on the head 13, the end of this; lever ,6,5, I

being cam-shaped and terminating in anarrow edge, so that it may engage behind the-,-

shoulder on the clutch bolt as the latter'approaches the lever in the rotation held'pressed toward the driving shaftas l fiuence of its-spring, is forced towardthe. fiy-wheel and engages the recess therein This clutches the fly-wheel to the driving shaft'ra-nd causes the two to rotate together,

it beingunderstood that the fly-wheel is continuously rotated. I

All of the parts above described are of wellown construction in what are known as .85

pillar pressesand further descriptionds" thereforedeemed unnecessary herein, as the construction and operation of the parts will be readily understood by those skilled the construction and. operation of machinesjf'of :91

this class.

machine and supports 24 rise from -t 1 1eba1s g-fl platenear the rear. Ears 25 project'latermovement. A slide plate 528 projects fromi,

of ithe driving shaft, and force said bo1t-from-en .7. gagement with the fiy-wheel; This leveriis,

means of a spring22 and when thelever is t: pressed down it is disengaged from the. ,1. clutch bolt and the latter, under the in-v .15

I A base plate 23 is secured to the bed fffi 13 the forward end of the slide,fand a 1'ugf29 also projects from this forward end, which i Patent-tanner).4,1313 Application filed July22,1909. Serial No. 508,924.

.which is located a shoulder 38. Lugs 39 nates in a straight wall 37 at the bottom of project from the sides of each of the sections of the holding die and'these lugs are pivotally connected bylinks 40 with the ears 25.

, IA pair ofholdingfingers 41 are pivotally mounted-upon the slide plate 28 underlying theholding die. These fingers are so formed that thespace between them' corresponds in shape to the opening through the holding die." I Each of the sections of the holding die is undercut'forminga recess 78 in which these fingers are located. The fingers are 'pressed-toward-each other as by a spring Y42 and a space 43 is formed between; the fingers,

as this space being located immediately forward'of the-pivotal support for the fingers,

A slide operating lever 44 is pivotally supportedupon and located between the supports24; one end of this lever loosely engaging within a socket 45 in the slide 27 and the opposite end of the lever projecting toward thejsliding block 17. 1 A bracket 46 islsecured to the .block 17 and 2; lug 47- projects from said-bracket, which lugis located 35 opposite an ear48 also projecting from the bracket. A plunger 49 is located inthe lug 47' andis forced downward as by means of a spring 50. An adjusting screw 51 is 10- cated in the ear 48 and one'end of the slide operating lever 44 is located between the sp'ring plunger 49 and the adjusting screw 51. This construction provides for a movement of the sliding block, and consequently the presser carried thereby independently of the slide operating lever 44 and-therefore the slide 27. The slide in itszbackward movement is arrested by a stop of any suitable construction, and after it has encountered this stop the sliding block is permitted to move still farther without movement of the slide and for a purpose to be hereinafter described. A starting-lever 52 is pivot-ally mounted in any suitable position, as -herein shown this lever being pivoted upon a rock shaft, 53 supported in a bracket 54 secured tothe frame. This lever is connected by an actuating rod 55. with the clutch lever 20 which has a recess. 56 within which the actuating rod extends. This rod has a shoulder 79 engaging the upper end of the clutch lever at the edge of the recess, and said rod lies in position to be struck by the clutch bolt 19 as the driving shaft rotates, wh1ch opera-. Q5 tion'rnoves-the rod to disengage the shoulder beveled as at 36, which beveled part termifrom the clutch lever. A spring 59 tends to hold the rod at the upper limit of its play and also with the shoulder 79 in engagement with the upper edge of the clutch lever.

A connecting rod 57 pivoted to i the clutch lever 20 extends to and is pivotally' connected with an arm 58 secured to one end of. the rock shaft 53. An arm 60 is also secured to this rock shaft, preferably at the opposite end, which arm is connected by a link 61 with a. bell crank lever 62, pivotally supported on a stationary part of the machine, as on the base-plate 23. This bell crank lever has a lug 63 adapted to. engage the end of a holding finger operating lever 0 p 64 pivotally supported on the slide plate 28 and having a stud 65 arranged to lie within the space 43 between the fingers- A spring 66 exerts force upon the holding finger operating leverto hold said lever with the. stud 5 at the-backward limit of its play. The space 43 is narrowed at its front portion as at 67, this narrow portion decreasing in width toward the front or can receiving space be-' tween the fingers; v

A recessGS is formed in the base-plate 23 and a can rest 69 is located in this recess, being yieldingly supported .as upon springs 70. This rest may be held in its recess in any convenient manner, as by means of hold- 7 ing screws 71 the heads of which overlie the rest to retain it in position.

A press'er 72 is secured to the lower end of the block 17'and the face or end 73 is removable andsecured in place in any suit- 10o able manner as by means of a screw 74.

A carrier 75, preferably in the form of a belt, travels in front of the machine, and the cans to be sealed are placed upon this carrier and moved by it to position in front of the holding dies.

In order to secure the holding dies against swinging movement while the presser is securing the seal a lock is provided, this consisting of a lock plate 80 secured to the front of the block 17 as by means of screws passing through the plate into holes 81 shown in Fig. 1 of the drawings. This plate has a lock recess 8.9,at its lower edge of a size to receive lock lugs 83 projecting from the front of the cap 35, as shown in Figs. 3 and 6 of the drawings.

.The operation of the device briefly described is as follows: The parts of the machine being at rest, that is, with the block 17 i up and the holding dies and holding fingers open, the slide being in this position at the forward limit of its play, and the fly-wheel rotating but disconnected from the driving shaft 14, a can filled with material is carried to a position. immediately in front of the holding dies. The cover 7 6 of the can and the sealing strip 77 being in position on the can, the operative moves the can from the carrier 75 on to the base-plate 23 and'beincense was the holding fingers ii. The time oi the starting lever 52 is nowpushed downward by the operative, moving the actuating rod 55. This causes the clutch lever to 7 he moved downward, disengaging it from the shoulder on the clutch bolt 19 and the latter under the'lnfluence of its spring immediately moves inward and engages the. clutch recess in the flywheel when said recess arrives opposite the bolt. This clutches the fly-wheel to the driving shaft, causing the latter to rotate. As the actuating rod is moved downward it moves the connecting rod 57 and arm 58, rocking the shaft 53 and moving the arm 60, which movement through the link 61 rocks the bell crank lever 62 and disengages the lug 63' from the holding finger operating lever 64.

Said lever 64: is thus allowed to move backward underthe pull of the spring 66, so that the stud 65 is moved from the narrow part 57 of the space between the fingers into the i-ztrger part, allowing th e fingers to 010mm.

gether under the pull of the spring 42 and tightly" holding the can which 'has heen' placed .in'position; This operation of releasing the holding fingers to enable them to grasp the can of course takes place before the driving shaft is started, as hereinbefore described.- As the driving shaft rotates. the clutch bolt 19 strikes the end of the actuating rod 55 knocking it from engagement with the clutch'lever 20. Said lever then immediately springs back to its former posilion under the'pu-ll of the spring 22 and with its nose in position to engage the 'shoulder on the clutch-bolt when the latter ;1s

7 rotated around to this point. In this upward movement of the clutch lever the rock sh aft- 53;; is returned to its former position, which 'mtivement causes the bell crank lever 62 to be swung so thatthe lug 63 will lie in the path of 'movement of the holding finger operating lever 64:. When pressure upon;

the holding, lever is released by the opera;-

tive the spring 59 will pull the operating.

rod 55'upward and also laterally, reengag- 3 ing it with the clutch lever' 20. The starting of the driving shaft moves the block 17 downward swinging the slide operating levyer visland moving the slide 27 to. the backward limit-of its play, said slide carrying with it the'iholding die and the holding finslide moves-back the dies are caused to swing v gers. .By reason of the connection of the fswingingiholding dies with the stationary support as by means of the links 40, as the together. to inclose and Support v the can Y therein. The dies are closed togetheras the slide reaches the backward limit of its play and before the presser hasengaged the can "-topeud seal. "The yieldingengagement of the lever 44 with the plunger 49 allows the sliding block, however, to continue its traveland-the pres'ser is thus brought into contact with the canto or cover and seal. As the pressercgntmues its downward movement the can "alsore-moves slightly downward,

-which is permitted by. its support upon the yielding can rest 69; This causesthe, edge of the can to travel along the beveled portion 36 of the cap 35 rolling the edge inward until the edge or lip is finally seated on the shoulder 38. This movement of theipresser closes the folded edge of the cover downward andpinches the folded edges of'the seal tightly against thecover and the lip, thus effectually and hermeticallysealing the.

can. In the movement of the slide 27 and plate 28 forward the lever 6a is carried against the lug 63 forcing the pin on the lever into the narrow portion 67 .of the slot,

thus opening'the fingers 41, it being noted that thelever 64: is carried away from the lug 63 in the backward movement of the slide 27. The fingers are thus-opened in position to receive a can. As the driving shaft continues its rotation the clutch bolt 19 is brought into engagement with the clutch. lever 20, the nose of which-is thrust in behind the shoulder on the bolt, withdrawing it from therecessin the fiy-wheel, thus disconnecting the vfly-wheeland shaft and causing the operation ofthe latter to ceases While we have-shown and described here r of the cover and seal inward whenever they are of a size toencounter the beveled portion, but such parts are generally of a size to fit nicely within the recess bounded by the straight wall lo cated immediately under :said beveled edge.

LWe claim' 1. A sectional holder die, a plunger ar-' ,ranged to operate upon an article held in said die, a holder die operating member to move the die underneath the plunger and to remove it therefrom, a connection between said plunger and die op'erating member for actuating the latter, and means connected with the holder die to open and close the dissections through the medium of thereciprocating movement of thesect-ions.

2; A plunger with means for reciprocating it, a die support, a-sectional holder d1e mounted on said support and having a reciprocating movement in a plane at rightangles to that of the plunger, and'a'plvoted, angularly formed lever engaging the plunger-and die supporting means whereby movement of the plunger imparted to cause movement of the holder die.

3. A plungerwith means for operating it, a sectional holder die, means for mechanicallymoving said holderdie forwardly to position, un erneath the plunger and for withdrawing it backwardly therefrom, and

' means operable from said movingmeans for a ing said, holder die to position plunger and from said die moving mg and closing the opleniipg and closing the die sections. it, a sectional holder die, a die operating member, a connection between the plunger and the operating member for'operating the "closing the die sections.

plunger with means for operating nouaoaa "the plunger, connections between said plunger and slide and means for opening and 11. A slide, a sectional holder die pivot ally mounted on said slide, a plunger with means for reciprocating it, a lever with one end engaging said slide and the opposite end engaging said plunger, and means for opening and closing the die sections.

12. A slide, a holder die composed of sections pivotally mounted on said slide, a plunger with means for operating it, connections'between' the slide and plunger. for

latter, a connection between said die operat- ,ing member and holder die to move the latter to position under of the holder die causes an opening and closmounted at one side,

ing movement pf the die sections.

6. A plunger with means for operating it, a holder die composed of sections pivotally means for moving the i die to position beneath the plunger and to withdraw it therefrom,

I it, a holder die composed said .sections through "nection between each and a'link pivotally connecting each of said sections withafixed support. I Y

7. A plunger'with means for operating of'sections mount; ed to swing upon a common pivot, means for imparting rectilinear movement to said die forwardly. to position beneath the plunger and 'backwardly therefrom, and meansjfor opening and closing the die sections.

8. A plunger with; means for operating it, a holder-die composed of sections mounted to swing upon a common pivot, means for imparting rectilinear movement to the die forwardly to position beneath the plunger and backwardly therefrom, and a memberfattached to each of the die sections arranged to effect opening'and-closing movement of the agency of said. movement beneath and from under said' plunger. a

9. A plunger with means 'for operating it, a holder die composed of sections pivotally mounted, a slide supporting said pivot, means for reciprocating the slide, and a conof the dissections and a fixed part whereby the movement of the slide' opens and closes the die sections.

10. A slide, a holder die composed of sections pivotally mounted on said slide, aplunger arranged to operate said slide, said plunger being arranged article slide, a plunger operating the former by the movementof the latter, and members connected with the die sections and constructed and arrange to effect opening and closing movement of said die sections through the agency of movement of said slide.

13.'A slide, a holder. die composed of sectionseach pivotal-1y mounted on said slide, a link connection between each of-the die sections and aimed support, means for operating the slide, and a 'plunger with means forvoperating it.

14:. A plunger with means for operating it, a sectional holder'die including a pivoted die section, means for imparting rectilinear movement to saiddieforwardly to position underneath the plunger and backwardlv therefrom, andm eansfor swinging said sec"- tion on its pivotlthrough the agency of' movement of the die. a

15. A plunger with means for operating i.,' a slide 'operatively connected with. said plunger to be operated thereby, a sectional holder die including a section pivoted to .said slide, anda memberattached to the pivoted die section and constructed and arranged to effect swinging movement thereof on its. pivot through the agency of move} ment ofsaid slide,

116. A- slide,-.a holder die carried by said adapted to operate upon an article held by the die, a connection between said plunger and slide for reciprocating thelatter, and means arranged to permit movement of the plunger without movement of said slide.

' 17. A slide, a holder die carried by said slide, a plunger arranged to operate upon an article held by thedie, a connection between said plunger andlslide to reciprocate the latter, said connection including a lever engaged by said plunger, and a yielding connection between said lever-and plunger :11-

lowing movement of the latter with the slide at rest. 7 18. A plunger with it, a slide having a forked end, means-for operating the slide, a pivotextending between the pro'iigs 'of'said fork, a holder die held by said die,'means for operating l i g including sections 'each-pivotally mounted to oper 1113011 an on said pivot, an'dfmeans for opening and the die sections.

means for operating 19. A plunger with means for operating it, a holder die composed of sections, means to! opening and closing the die sections, and holding fingers arranged to grasp an article located Within said die.

20. A plunger with means for'operating it, a holder die composed ofsections, means for opening and closing said sections, hold means for opening and closing said die sections, a plunger positioned to operate upon an article held by said die sections and means carried bv said plunger to engage and. secure said die sections together when closed.

23. A holder die composed of sections, a plunger, means for operating the plunger, connections between the plunger and die sections to effect opening and closing movement'of the latter, and a member carried by said plunger and arranged to secure -said die sections together when closed. I

24, A s'licle,a holder die composed'of sections carried by said slide, a plunger constructed to move saidslide to carry said die underneath the plunger and remove it therefrom, operative connections between the plunger and slide, means for operating the plunger, and a member carried by the plunger andarrangedto secure the die sec.-

' tions together when closed. 40

25. A holder die composed of. sections, means for opening and closing said die sections, a plunger arranged to operate upon an article held-by said die," and a locking member carried by said plunger and arranged to engage the die sections and secure 7 them together. a

26. Aplunger with means for operating it, a holder die composed of sections, means, for reciprocating-said die to place'lt under:

neath the plunger and'for removing it therefrom, a member connected with each die section andconstructed-and arranged to effect opening and closing movement of said sections through the agency of movement to and from beneath-the plunger, and means for securing the die sections in their closed position.

-.27. A plunger with means for operating for reciprocating saiddie to and from be- .neath said plunger, means for opening and closing said die sections through the .me-

dium of said reciprocating movement, and

a member secured to said plunger and arranged to secure the die sections in their closed position.

28 A slide, a plunger with means for op-' erating 1t, a connect-ion between the plun.

ger and slide for operating the latter," said connection including a lever, a connection between said lever and plunger to permit movement of the latter without movement of the lever, a holder die secured to said slide and composed'of sections, and means a a withln said d1e,. and a connection between said lever and fingers arranged to operate the latter in the movement of the former,

ing it, a self-actuated means for. stopping the movementof the plungerin each complete reciprocation, a leverlfor starting, said operating means, a holder die, fingers 10- cated to grasp anarticle located within said die, means for moving said die and fingers to position beneath the plunger and -Jtor re- 131. A holder die, meansfor imparting re -moving them therefrom, and a connection Ltween said lever and fingers for flclosing the latter in the operation of the forrnei; and for opening the fingers movement.

ciprocating. movement to said die, h olding fingers to'gra'sp an article inclose'd within said die, means for opening said fingers,',and

. means for mechanicallyfclosing them.

- 32. A holder die, means for reciprocating said die, holding fingers pivotally mou tjitled to grasp an article located within said} ie,

a holding finger operating lever, means lo cated within the path'of-movement of said lever to operate'said' fingers, and means for withdrawing'said finger operatin 'means.

33. A.- holder diewith means f r impart ing reciprocating movement thereto, holding fingers pivotally amounted to grasp an article, locatedwithin said dies, a holding finger operating lever, a bell,- crank lever ment of the finger operating lever, and means for withdrawing said lug from the path of movement. of the finger operating lever. 1 L

. 34. A- holder die withineansfor imparting reciprocating movement thereto, a start-. i. ing lever, fingers pivotally mounted to grasp an article locatedwithin said die, .a holding finger operating. lever, a *bell crank lever having a lug-located in'the path of 'movetheir sliding:

' s5 30. A plunger with means for reciprocat- -having'a lug-located in the pathof move- -ment of the finger operating'levenand -a .1 I

connection between the starting leverendr bell crank'lever arranged to withdraw said lug in a movement of the starting lever to start the die,"and means vfor returning said lug to position in the path or movement of the finger operating lever.

I 35. A'holder die, fingers pivotallymount- ,ed-tograsp an article located within said '-.die,='means for imparting reciprocating movement to said die, a lever self-actuated.

in one direction to stop the reciprocating 1 movementnof said die,.means for actuating said lever in theopposite direction, and connectionsbetween said lever. and said fingers arranged to close said fingersin the. operai p Ta i art; a,

means for reciprocgjt rngihe die, a lever self itiqn'of said lever to start said reciprocating movement of the die. a i

-36. A.-,holde' e, fingers arranged to located .within said die,

actuated stop:- said "reciprocating nioveme t,,?a';coi1nection between said lever and end-. '8 and said; selfeactuatedlever to withdraw the -rocating movement thereof.

fingefs-foropening them, astarting lever,

connection between said starting lever latter to permit. movement of the parts.

37.: ,A'sectional holder die with means for ho ding gers mounted to reciprocate with said die, a plunger with means for operating it, connections with the die sections for opening" and closing them through the agency of reciprocating movement hereof, and connections with said fingers forv operatingthem through the agency of the-recip- 38. Aiplunger with' means for'operating holder die, fingers arranged to grasp an article located within said die, said fingers having a bodily reciprocating move- Inent, a finger operating lever, a rocking leverhaving a lug arranged to be interposed in the path of movement of said operating impartin reciprocating movement thereto,

meshes lever, means for withdrawing the rocking lever from the path of movement of sai operating lever, and means for .automati cally returning said rocking lever to the path of movement of the operating lever.

89. A holder, dieco-nstructed to grasp -an article located in a recess in said die thathas a finger recess at its under side, fingers located withln said finger recess, and means for operating said fingers independently of said die to hold said article.

- 40, A, plunger with means for operating it, a slide, means for operating the slide, a pivot borne by said slide, a sectional holder die ,havin each die section mounted on said pivot, an a linkpivota-lly connecting'each die section with a fixed support.

41. A plunger with means for operating it, a slide, a'lever with one end engaging said plunger and the opposite end engaging said slide, a sectional die holder pivotally mounted on' said slide, and means for re straining movement of the die sections to cause the-slide in its movement to open-and close said'sections.

42. A holder die composed of sections arrangedto'open and close, a plunger pos1- "tioned for reciprocating movement to operate upon an article held by said die, means 'for operating to said die to move it to a posi-'.

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