US412582A - Can-soldering machine - Google Patents
Can-soldering machine Download PDFInfo
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- US412582A US412582A US412582DA US412582A US 412582 A US412582 A US 412582A US 412582D A US412582D A US 412582DA US 412582 A US412582 A US 412582A
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- Prior art keywords
- lever
- turret
- dog
- rod
- shaft
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- 238000005476 soldering Methods 0.000 title description 16
- 210000003284 Horns Anatomy 0.000 description 24
- 235000000396 iron Nutrition 0.000 description 24
- 210000001847 Jaw Anatomy 0.000 description 18
- 239000000969 carrier Substances 0.000 description 14
- 230000000994 depressed Effects 0.000 description 8
- 241000237858 Gastropoda Species 0.000 description 4
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Substances [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 4
- 229910052742 iron Inorganic materials 0.000 description 4
- 239000002184 metal Substances 0.000 description 4
- 229910052751 metal Inorganic materials 0.000 description 4
- 210000002832 Shoulder Anatomy 0.000 description 2
- 230000000875 corresponding Effects 0.000 description 2
- 230000000284 resting Effects 0.000 description 2
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K1/00—Soldering, e.g. brazing, or unsoldering
- B23K1/0008—Soldering, e.g. brazing, or unsoldering specially adapted for particular articles or work
Definitions
- This invention has for its object to provide a simple and rapidly-operating machine for soldering can-bodies, and in which the operations of applying the can-body blanks to the machine, soldering the seams thereof, and removing the soldered can-bodies shall be automatically performed.
- FIG. 3 represents a top view of the same.
- Fig. 4 represents asection on line 0000, Fig. 3.
- Fig. 5 represents a section on line y y, Fig. 4, and a top View of the mechanism below said line.
- 0t represent'sw'a rotary carrier or turret having a hub 2 connected with the turret by spokes or arms 3.
- the hub of the turret is fitted to rotate on a vertical shaft b, and is supported by a bearing 0,
- the turret and shaft are capable of rotating independently of each other, the shaft serving both as a center on which the turret may rotate and as a means for reciprocating the soldering-arms, as hereinafter described.
- the upper end of the hub is formed as a journal and fitted in a fixed bearing 01.
- the turret is provided with a series of radiating mandrels 6, each of which is composed of sections connected by flexible arms or spring f f, Fig. 4, with the turret, said flexible arms permitting the mandrel-sections to move from and toward each other for the purpose of expanding and
- the bearings c d are parts of the sup-.
- the turret is rotated step by step in the direction indicated by the arrow in Fig. 3 by the devices which I will now describe.
- n represents a flanged Wheel affixed to the hub 2, and having in the upper edge of its flange a series of notches 0 corresponding in number and position to the mandrels.
- acollar p on which is formed a, lever q', said lever and its collar being adapted to oscillate horizontally.
- the outer end of the lever projects into a slot in the upper end of a lever r, the lower end of which is pivoted at s to an ear or bracket on the supporting-frame.
- Said lever r has a trundle-roll, which enters a cam-groove t in a disk u, on the driving-shaft o. The rotation of said-disk oscillates the lever r,
- a dog a which is formed to engage the notches o in the wheel n.
- the outer end of said dog is pivoted to a vertical rod 19', the lower end of which is pivoted to one end of a lever c, p which is pivoted at cl to the supporting-frame and has a trundle-roll 6 bearing on the peripheryof a cam f on the driving-shaft.
- the dog is then raised by the cam f and held raised while the lever q moves in the opposite direction, after which the dog is depressed and engaged with the next notch 0, and so on, each partial rotation of the turret being sufiicient to present a new mandrel to the horn hereinafter described.
- the turret is locked after each movement by a lever h, having a tooth formed to enter slots t" formed in the lower edge of the flange of the wheel 11.
- Said lever is thrown into engagement with one of said slots z",when the turret stops, by a spring j, and is withdrawn just before the next rotation of the turret by a cam is on the driving-shaft bearing against a roll on said lever, the latter being pivoted at m to the supporting-frame.
- the cam on is composed of two concentric circular portions 4 5, having different radii, and two cam-shaped portions 6 7, connecting said concentric portions.
- the concentric circular portion 4 of the cam holds the wedges in their mandrel-expanding position during a part of the rotation of the turret and while the solderingirons are operating on the can-blanks, as hereinafter described.
- the rods h reach the cam-shaped portion 6, they are thrown out thereby into the concentric circular portion 5.
- the wedge are thus caused to release the mandrel-sections, so that they no longer clamp the can-bodies thereon, the wedges being held in said position while the soldered can-bodies are being removed from the mandrels and while unsoldered blanks are being placed thereon.
- the machine is provided with a horn 1), which is afiiXed at one end to a fixed arm or bracket g on the frame of the machine, and is arranged so that each mandrel is brought successively into line with it.
- the can-blanks which have been previously bent into scrolls with their edges overlapping, are placed on the horn by the operator and are forced from the horn onto the.
- mandrel coinciding therewith by jaws 1' which are pivoted to a reciprocating carrier 3 within the horn, and are forced outwardly by springs, their outer ends projecting through longitudinal slots in the horn.
- the carrier 3 is reciprocated by mechanism hereinafter described, and each movement toward the outer end of the horn causes the jaws to force the canblank from thehorn to the mandrel.
- Aguide 8' supported by an overhanging arm t, stands over the horn and constitutes an abutment against which the overlapping edge of the can-body blank is caused to bear by the operator.
- the can-blank is guided during its removal from the horn by said abutment or guide, so that when the blank is placed upon the mandrel its overlapping edge is in the proper position with relation to the soldering devices to be described.
- the jaw-carrier s is attached to a rod a, which slides in guides or bearings in the horn and has an arm 1) attached to it.
- 13 13 represent two soldering irons or slugs, which are arranged to act simultaneously on can-blanks supported by two adjacent mandrels.
- Said irons are held in sliding carriers or boxes 14, which have rods 15 on their ends fitted to slide in ears or guides on a yoke or frame 16.
- a vertical rod 17 which is fitted to slide in fixed guides on the supporting-frame and has a roll or stud 18, which bears on the free end of a lever 19, the other end of which is pivoted to an, car on the supporting-frame.
- Said lever 19 is provided between its ends with a trundle-roll, which enters a cam-groove 20 in a disk 21 affixed to the driving-shaft.
- the rotation of said disk causes its camgroove to oscillate the lever 19, which in turn reciprocates the rod 17, and thus alternately raises and lowers the yoke 10, and the soldering-irons supported thereby, the said irons being alternately applied to and raised from the can-blanks on the mandrels under the irons.
- These movements are so timed that the irons are raised while the turret is being rotated, and are lowered and held upon the blanks after the turret stops and until it is again rotated.
- the iron-holders 16 are continuously reciprocated horizontally to give the irons a lengthwise-rubbing motion.
- the means whereby the irons are reciprocated are a cross-head 22, connected with the upper rods 15 on the inner ends of the iron-holders, arod 23, affixed to the cross-head and fitted to slide in bearings on the yoke or frame 16, a pitnian 24, connected by a gimbal-joint 25 with the outer end of said rod, and a wrist-pin 26, connecting said pitman with adisk 27, affixed to the upper end of the shaft 1), said wrist-pin being eccentrically connected with the disk Said arm is connected by a 27, so as to impart through the pitman a re ciprocating movement to the rod 23, cross head 22, and holders 14.
- the shaft 1) is continuously rotated by a connection with the driving-shaft, said connection being a bevelpinion 28 on the shaft 1) and a bevel-gear 29 meshing therewith on the driving shaft '0.
- the irons are placed loosely in vertical slots in the holders 16, and are provided with shoulders or projections 30 above said holders, which projections bear on the upper edges of the holders when the latter are raised, and thereby enable the holders to raise the irons.
- the projections are prevented from bearing on the holders by the contact of the irons with the canblanks. There is therefore no positive connection between the holders and the irons,
- soldered blank or body is removed from each mandrel after the latter has been released or allowed to contract by the outward movement of its wedge, the means for removing said bodies being as follows: 31,.
- Fig. 4 represents a bell-crank lever pivoted at 32 to the supporting-frame, and having a dog 33 pivoted to one of its arms, said dog standing in position to project over the mandrel last released or loosened, when the turret stops, and provided with a hook formed to engage the inner end of the can-body on said mandrel.
- the other arm of the lever 31 is connected by a rod 34 with a lever 35, which is pivoted at 36 to a standard 37 on the supporting-frame, and has a trundle-roll 38, Fig. 4, projecting into a cam-groove 39 in one side of a disk 40 on the driving-shaft.
- the bellcrank lever is oscillated by said devices, and gives the dog a reciprocating motion lengthwise of the mandrel over which it projects.
- the rear end of the dog 33 is connected by a rod 41 with one arm of a lever 42, which is pivoted at 32, and is connected by a rod 43 with a lever 44, pivoted beside the lever 35, and provided with a trundle-roll 45, entering a cam-groove 46 in the opposite side of the disk-40.
- the lever 44 is oscillated by its described connection with the cam-groove 46, and through the rod 43 alternately raises and lowers the ,dog 33, the time being such that the dog is raised when moving forward after the can-body, depressed to engage the inner end of the can-body at the end of its forward movement, and kept in engagement with the can-body until the end of its backward movement, when it is again raised.
- I provide the rod 41 with a sliding collar 47, which is engaged with the lever 42, and interpose springs 48 between said collar and collars 49, which are affixed to the rod 41. (See Fig. 4.)
- I claim-- 1 The combination, with the step-bysteprotated turret and its mandrels and jaws, of the continuously-rotated shaft within the hub of the turret, the yoke or frame located over the turret, the soldering-iron holders fitted to slide in guides in said frame and provided with irons or slugs, and the pitman connected at one end with an eccentric wrist-pin on said shaft, and intermediate devices, substantially as described, connecting said pitman with the iron-holders, whereby the latter are reciprocated, as set forth.
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
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Description
(No Model.) V
' r '5 sheets sheet 1. w E. E. ANGBLL.
CAN SO-LDERING MACHINE.
' Patented Oct. 8, 1889.
\A/ITNESSESI': v INVENTU a:
W T I 7 fi N. PETERS. Photo-Lithographer. Wilhl'nllnn, 11C.
(No Model!) 5' Sheets-Sheet 2.
v E ANGELL.
CAN SOLDERINGr MAQHINE v No. 412,582. Patented Oct. 8, 1889.
\A/ITN'ES'SEISHV v (No Model.) '5 Shetm-Sheet 4.
E. E. A-NGBLL.
- GAN SOLDERING MACHINE. No. 412,582. Patented Oct. 8, 1889.
\A/IT NESSES INVENTEIR;
WM W h mmg N. PEYERs Plww-Lilho m her, Walhinglan. QC.
v '5 Sheets-Sheet 5.. E. E. ANGELL.
CAN SOLDBRIYNGY MAGHINB.
Patented 001;. 8, 1889.
i UNITED STATES PATENT OFFICE.
EDWIN E. ANGELL, OF BOSTON, ASSIGNOR OF ONE-HALF TO E. B. WELOH,
OF CAMBRIDGE, MASSACHUSETTS.
CAN-SOLD ERIN G MACHINE.
SPECIFICATION forming part of Letters Patent No. 412,582, dated October 8, 1889.
- Application filed January 29,1889. Serial No. 293,008. (No model.)
To an whom it may concern:
Be it known that I, EDWIN E. ANGELL, of Boston, in the county of Sufiolk and State of Massachusetts, have invented certain new and useful Improvements in Can-Soldering Machines, of which the following is a specification.
This invention has for its object to provide a simple and rapidly-operating machine for soldering can-bodies, and in which the operations of applying the can-body blanks to the machine, soldering the seams thereof, and removing the soldered can-bodies shall be automatically performed.
The invention consists in the improvements which I shall now proceed to describe and claim.
Of the accompanying drawings, forming a part of this specificatiom'Figures 1 and 2 represent side elevations of my improved machine. Fig. 3 represents a top view of the same. Fig. 4 represents asection on line 0000, Fig. 3. Fig. 5 represents a section on line y y, Fig. 4, and a top View of the mechanism below said line.
The same letters of reference indicate the same parts in all the figures.
In the drawings, 0t represent'sw'a rotary carrier or turret having a hub 2 connected with the turret by spokes or arms 3. The hub of the turret is fitted to rotate on a vertical shaft b, and is supported by a bearing 0,
in which said shaft is journaled, thelower end of the hub resting on said bearing, as shown in Fig. 4. The turret and shaft are capable of rotating independently of each other, the shaft serving both as a center on which the turret may rotate and as a means for reciprocating the soldering-arms, as hereinafter described. The upper end of the hub is formed as a journal and fitted in a fixed bearing 01.
porting-frame of the machine. The turret is provided with a series of radiating mandrels 6, each of which is composed of sections connected by flexible arms or spring f f, Fig. 4, with the turret, said flexible arms permitting the mandrel-sections to move from and toward each other for the purpose of expanding and The bearings c d are parts of the sup-.
contractingthemandrel. Withinthe mandrels are a series of conical wedges g, which are formed on radiating rods h, fitted to slide'in guides i t' on the turret. Said rods are provided within the turret with sleeves or 001- lars j, which are provided with trundle-rolls k projecting into a groove in a fixed cam m. These expanding mandrels are claimed in my application, Serial No. 298,007, filed simultaneously herewith.
The turret is rotated step by step in the direction indicated by the arrow in Fig. 3 by the devices which I will now describe.
n represents a flanged Wheel affixed to the hub 2, and having in the upper edge of its flange a series of notches 0 corresponding in number and position to the mandrels. On the hub is fitted acollar p, on which is formed a, lever q', said lever and its collar being adapted to oscillate horizontally. The outer end of the lever projects into a slot in the upper end of a lever r, the lower end of which is pivoted at s to an ear or bracket on the supporting-frame. Said lever r has a trundle-roll, which enters a cam-groove t in a disk u, on the driving-shaft o. The rotation of said-disk oscillates the lever r,
which in turn oscillates the horizontal lever I q. To the lever q is pivoted, at w, a dog a, which is formed to engage the notches o in the wheel n. The outer end of said dog is pivoted to a vertical rod 19', the lower end of which is pivoted to one end of a lever c, p which is pivoted at cl to the supporting-frame and has a trundle-roll 6 bearing on the peripheryof a cam f on the driving-shaft. A
spring g holds said roll on the cam and pulls downwardly on the dog. The rotation of the cam f and the force of the spring g oscillate the dog vertically, as will be readily seen. The horizontal movements thus given to the lever q and the vertical movements given to the dog a are so timed that when the dog is depressed and engaged with a notch in the wheel at the lever q is moved horizontally in the direction required to rotate the turret one step in the direction indicated by the arrow, Fig. 3. The dog is then raised by the cam f and held raised while the lever q moves in the opposite direction, after which the dog is depressed and engaged with the next notch 0, and so on, each partial rotation of the turret being sufiicient to present a new mandrel to the horn hereinafter described. The turret is locked after each movement by a lever h, having a tooth formed to enter slots t" formed in the lower edge of the flange of the wheel 11. Said lever is thrown into engagement with one of said slots z",when the turret stops, by a spring j, and is withdrawn just before the next rotation of the turret by a cam is on the driving-shaft bearing against a roll on said lever, the latter being pivoted at m to the supporting-frame.
The cam on is composed of two concentric circular portions 4 5, having different radii, and two cam-shaped portions 6 7, connecting said concentric portions. When the rotation of the turret brings a rod h to the camshaped portion 6, said rod and the Wedge thereon are moved inwardly andthe mandrel on said wedge is expanded, thus clamping the can-body blank thereon against jaws 0 0' 0' attached to the turret. The jaws of one of the mandrels are shown in Fig. 1; but the jaws of the other mandrels are omitted from said figure and from Figs. 2 and 3, to avoid unnecessary repetition of detail, said jaws being fully shown in another application filed by me. The concentric circular portion 4 of the cam holds the wedges in their mandrel-expanding position during a part of the rotation of the turret and while the solderingirons are operating on the can-blanks, as hereinafter described. When the rods h reach the cam-shaped portion 6, they are thrown out thereby into the concentric circular portion 5. The wedge are thus caused to release the mandrel-sections, so that they no longer clamp the can-bodies thereon, the wedges being held in said position while the soldered can-bodies are being removed from the mandrels and while unsoldered blanks are being placed thereon.
The machine is provided with a horn 1), which is afiiXed at one end to a fixed arm or bracket g on the frame of the machine, and is arranged so that each mandrel is brought successively into line with it. The can-blanks, which have been previously bent into scrolls with their edges overlapping, are placed on the horn by the operator and are forced from the horn onto the. mandrel coinciding therewith by jaws 1', which are pivoted to a reciprocating carrier 3 within the horn, and are forced outwardly by springs, their outer ends projecting through longitudinal slots in the horn. The carrier 3 is reciprocated by mechanism hereinafter described, and each movement toward the outer end of the horn causes the jaws to force the canblank from thehorn to the mandrel. Aguide 8', supported by an overhanging arm t, stands over the horn and constitutes an abutment against which the overlapping edge of the can-body blank is caused to bear by the operator. The can-blank is guided during its removal from the horn by said abutment or guide, so that when the blank is placed upon the mandrel its overlapping edge is in the proper position with relation to the soldering devices to be described. The jaw-carrier s is attached to a rod a, which slides in guides or bearings in the horn and has an arm 1) attached to it. rod to with a lever 8, which is pivoted at 9 to the supporting-frame and has a trundleroll which entersa cam-groove 10 in.a disk 12 on the driving-shaft. The rotation of said disk oscillates the lever 8, which in turn reciprocates the rod a and j aw-carriers through the connecting-rod w. The movements of the jaw-carrier are so timed with relation to those of the turret that the blank is forced from the horn while the turret is stationary.
The horn and its jaws and the guide .9 are described and claimed in another application for patent filed by me simultaneously herewith, Serial No. 298,006, to which reference may be had for a fuller description.
13 13 represent two soldering irons or slugs, which are arranged to act simultaneously on can-blanks supported by two adjacent mandrels. Said irons are held in sliding carriers or boxes 14, which have rods 15 on their ends fitted to slide in ears or guides on a yoke or frame 16. To the outer end of said yoke is attached a vertical rod 17, which is fitted to slide in fixed guides on the supporting-frame and has a roll or stud 18, which bears on the free end of a lever 19, the other end of which is pivoted to an, car on the supporting-frame. Said lever 19 is provided between its ends with a trundle-roll, which enters a cam-groove 20 in a disk 21 affixed to the driving-shaft. The rotation of said disk causes its camgroove to oscillate the lever 19, which in turn reciprocates the rod 17, and thus alternately raises and lowers the yoke 10, and the soldering-irons supported thereby, the said irons being alternately applied to and raised from the can-blanks on the mandrels under the irons. These movements are so timed that the irons are raised while the turret is being rotated, and are lowered and held upon the blanks after the turret stops and until it is again rotated. The iron-holders 16 are continuously reciprocated horizontally to give the irons a lengthwise-rubbing motion. The means whereby the irons are reciprocated are a cross-head 22, connected with the upper rods 15 on the inner ends of the iron-holders, arod 23, affixed to the cross-head and fitted to slide in bearings on the yoke or frame 16, a pitnian 24, connected by a gimbal-joint 25 with the outer end of said rod, and a wrist-pin 26, connecting said pitman with adisk 27, affixed to the upper end of the shaft 1), said wrist-pin being eccentrically connected with the disk Said arm is connected by a 27, so as to impart through the pitman a re ciprocating movement to the rod 23, cross head 22, and holders 14. The shaft 1) is continuously rotated by a connection with the driving-shaft, said connection being a bevelpinion 28 on the shaft 1) and a bevel-gear 29 meshing therewith on the driving shaft '0. The irons are placed loosely in vertical slots in the holders 16, and are provided with shoulders or projections 30 above said holders, which projections bear on the upper edges of the holders when the latter are raised, and thereby enable the holders to raise the irons. When the holders are depressed, the projections are prevented from bearing on the holders by the contact of the irons with the canblanks. There is therefore no positive connection between the holders and the irons,
the latter being entirely independent of the holders so far as their pressure on the canblanks is concerned, so that they can conform to variations in the thickness of the metal of difierent blanks and bear upon the blanks with a pressure due only to their own weight.
The soldered blank or body is removed from each mandrel after the latter has been released or allowed to contract by the outward movement of its wedge, the means for removing said bodies being as follows: 31,.
Fig. 4, represents a bell-crank lever pivoted at 32 to the supporting-frame, and having a dog 33 pivoted to one of its arms, said dog standing in position to project over the mandrel last released or loosened, when the turret stops, and provided with a hook formed to engage the inner end of the can-body on said mandrel. The other arm of the lever 31 is connected by a rod 34 with a lever 35, which is pivoted at 36 to a standard 37 on the supporting-frame, and has a trundle-roll 38, Fig. 4, projecting into a cam-groove 39 in one side of a disk 40 on the driving-shaft. The bellcrank lever is oscillated by said devices, and gives the dog a reciprocating motion lengthwise of the mandrel over which it projects. The rear end of the dog 33 is connected by a rod 41 with one arm of a lever 42, which is pivoted at 32, and is connected by a rod 43 with a lever 44, pivoted beside the lever 35, and provided with a trundle-roll 45, entering a cam-groove 46 in the opposite side of the disk-40. The lever 44 is oscillated by its described connection with the cam-groove 46, and through the rod 43 alternately raises and lowers the ,dog 33, the time being such that the dog is raised when moving forward after the can-body, depressed to engage the inner end of the can-body at the end of its forward movement, and kept in engagement with the can-body until the end of its backward movement, when it is again raised.
To enable the dog to adjust itself to the difierent thicknesses of metal of different can-bodies, I provide the rod 41 with a sliding collar 47, which is engaged with the lever 42, and interpose springs 48 between said collar and collars 49, which are affixed to the rod 41. (See Fig. 4.)
The soldering devices herein described form the subject of another application for Letters Patent filed by me simultaneously herewith, Serial No. 298,009.
I claim-- 1. The combination, with the step-bysteprotated turret and its mandrels and jaws, of the continuously-rotated shaft within the hub of the turret, the yoke or frame located over the turret, the soldering-iron holders fitted to slide in guides in said frame and provided with irons or slugs, and the pitman connected at one end with an eccentric wrist-pin on said shaft, and intermediate devices, substantially as described, connecting said pitman with the iron-holders, whereby the latter are reciprocated, as set forth.
2. The combination of the rotary mandrelcarrying turret having a hub journaled in suitable bearings, a wheel n, affixed to said hub and having a series of notches or slots 0, an arm q, mounted to oscillate horizontally on said hub, means for oscillating said arm, the dog a, pivoted to said arm and formed to engage the slots of the wheel n, and means for vertically reciprocating said dog, whereby the latter is caused to engage the wheel n and rotate the turret during the forward horizontal movement of the arm g and disengaged from the wheel during the backward movement of said arm, as set forth.
3. The combination, with the rotary mandrel-carrying turret having a hub journaled in suitable bearings, of the wheel a, rigid with said hub and provided with the slots or notches 0 and i, the oscillating arm q, provided with the pivoted dog a, adapted to engage the slots or notches o, the spring-pressed locking-lever h, arranged to engage the said slots or notches t", and a cam for disengaging said lever from said slots or notches, as set forth.
4. Thecornbination of the rotary turret and its mandrels and jaws, means for rotating said turret step by step, the ejecting or can-bodyremoving dog to which the mandrels are suc cessively presented, the lever 31, supporting said dog, means for oscillating said lever to give the dog a longitudinal motion, a pivoted lever 42, connected by a rod 41 to one end of the dog, 33, and means for oscillating the lever 42, whereby said dog is raised and lowered, as set forth.
5. The combination, with the intermittingly-rotatin g turret and its mandrels, of the canremoving dog 33, the levers 31 and 42, means for operating said levers, and the rod 41, having the collars 47 and 49 and springs 48, as set forth.
6. The combination, with the intermittingly-rotated turret and its mandrels, of the continuously-rotated shaft within the hub of the turret, an eccentric Wrist-pin carried by said to this specification, in the presence of two shaft, the yoke or frame located over the tursubscribing witnesses, this 22d day of J anu- 1o ret, the soldering-iron holders fitted to slide ary, A. D. 1889.
in guides in said frame, a jointed rod conneeting said holders with said Wrist-pin, and
means for lifting said holders when the tur- Witnesses:
ret is to be rotated, as set forth. 0. F. BROWN,
In testimony whereof I have signed my name A. D. HARRISON.
EDWIN E. ANGELL.
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US412582A true US412582A (en) | 1889-10-08 |
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US412582D Expired - Lifetime US412582A (en) | Can-soldering machine |
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