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Publication numberUS382632 A
Publication typeGrant
Publication date8 May 1888
Filing date19 Feb 1887
Publication numberUS 382632 A, US 382632A, US-A-382632, US382632 A, US382632A
InventorsWilliam F. Bancroft
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
US 382632 A
Abstract  available in
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Claims  available in
Description  (OCR text may contain errors)

(No Model.) 3 Sheets-Sheet 2.



No. 382,632. Patented May 8, 1888.

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( No Model.) 3 Sheets-Sheet 3.




Patented May'8 1888'.



srnorrfroa'rron' forming part of Letters Patent No. 382.632, dated Maya, 1888.

. Application filed February 19 1887. Serial No. 228,254. (No modem To' alt whom it may concern.- 7

Be it known that we, WILLIAM F. BANGROFT and. HARLEY A. STONE,-citizens of the Unitedv States, and residents -,of Worcester, in the county of Worcester and. State of Massachu- 7 setts, have invented certain new'anduseful in] provements in Machines for :Making Wire Fails, of which the following isa specificatron, accompanied by drawings forming a part of the same, and illustratinga wire-nail machlne embodying the several features ofour invention, in which Figure 1 shows a top view of the machine. Fig. 2 is a transverse'sectional view online X X, Fig. 1, looking in the direction of the arrow 1 and showing the mechanism forv gripping the wire. Fig. firepresents, a detached, portion of the grippingmechanism. Fig. 4 is a cent-ral'longitudinal sectional view with the 2 operating parts in the position in which a nail is headed; Fig. 5- is a transverse sectional view on line XX, Fig. 1, looking in the direction of the arrow 2 and showing only the mechanism for cuttingjoff the wire. Fig. a topview of a portion of the nail-heading mechanism. Fig. 7 isa perspective view of a portion of the nail-heading mechanism. Figs. 8 and 9 are sectional views of aportion of the wire-cutting mechanism on lines S and Y,

5, respectively, looking in the direction of the arrow 3. Fig. 10 is a central longitudinal view of the machine with the operating parts in, the position opposite that shown in Fig. 4:. Fig. llisa. side view, of a part of the heading mechanism, partly in section; and Fig. 12 isa front view of a part of the heading mechanism. I Like letters refer to likeparts in the several views.

A denotes a table mounted upon a suit-able frame-work, and upon which the operating parts of the machine are supported. B is the main drivingshaft, to'which power is imparted through the belt-pulley B. Upon the shaft B are the bevel-gears B B, communicating mo' tion through similar bevel-gears, B B to the V shafts'G and-D=---A.slo, ted crank-platefi, on the shaft 0 carries a cran piiiXERrmnnected b J a link with an arm, E, swiveled. in the rdckh shaft E, to which an arm, E is attached. The arm E is connected by alink, E, to a'stud, E", projecting. from a wire carrier. E; such as is now in use uponfmachines of this class. The wire-carrierhas a reciprocating motion along the way E,and at each forward movement carries the wire required to form the nail into the machine.

' We have not herein shown in detail the construction of themechanisnremployedginfeeding the wire to the nail-making portion of the incorporate the same in a separate application. For that reason the feeding mechanism ishereby disc1aimed.- I F is a raised block or anvil either. securely attached to or cast as a part of thetable A. Upon the "perpendicular 'side-- or -"facc ef anvil F isa way,'in. whichslidesa'block. F, resting on the adj ustingserew F bywhich the block F is raised to bring the gripping-diesin 7o alignment with the wire and the heading mechanism. The block F has a fixed grippingdie, F. and alever, Fj, pivoted in the block FatF.

The lever F carries a gripping-die, F and 75 is rocked on its hearing by the action of a cam, D, on the shaft D, on which the free end of the lever F is held partly by its own weight and partly by means of a rod, F, and spiral spring F As the gripping-dies are opened by the depression of the free end of the lever F, the wire is fed into the machine byt'he forward reciprocating motion of the earrier'E. The diesF? and F are then closed' by, the acthe lever F, thereby firmlyholdingjthe wire in the dies F F, while the ope'rationof head-- 'ing is performed andthe'nail is cut off. The dies F and F are adjusted laterally in ways theirposition' by 'means of the gibs F and screws F. We insert a steel tube, F, be-. tween the ends of the dies F F, with its flanged end resting againstthe anvil F, for thepurpose of transferring the force of the blow 95 employed 'in heading the nailfrom the gripping-dies to the anvil itself.

1 The wire having been seized by thegripmechanism, as it has been deemed advisable to tionof the cam D in raising the fr'eelendof 8 by the screws F, and ar se u elyt mp i 9 ping-dies F F with the end projecting far ble A. The block G carries a sliding'plate,

G sliding horizontally in'ways formed inthe block G, and havinga header, G", (seen in a detached and perspective view in Fig. 7 and consisti-ng' ofa steel bar held inagroove in the lower surface of the sliding plate.G"

- by means of the binding=bolt G.

A screwt-hreaded rod, G, projects from the block G, having an adjusting-nut, G", 'against. which the plate G, attached to the sliding plate G is normally held by means of the spiral springs Gflpl'atred between the block G and the plate G1,, 6.

The header v(5: having been brought into alignment with the wire hel-din the grippingdies F? F, as shown in Fig. 4, the ram H, sliding in ways on the table. A,'is brought against the end of the sliding plate G by the eccentric B on the shaft B, forcing the header Gagainst the end of the wire held in the dies F F and forming the head of the nail; The motion of the parts is then reversed, assuming the position shown in Fig. 10, thedies h F are opened, releasing the wire, which is again fed the length of the required nail, the gripvfpiug-dies F Fareclosed by the action of the cam D, and the cutting and pointing dies I are brought against the-wire by the action of the eccentrics C on the shaft-JO and l on the, shaft D. 'Thecutting and pointing dies are,

carried in blocks 1', slidingin ways on the-table A, and are held in position by the gibs 1, intermediate blocks, 1, and'bin'dingscrews I, which pass through slots 1 and enter the slid ing blocks I. The adjustment of the dies I is made laterally by the screws I,jour' the blocks 1 and passing through the screwthreaded lugs P-onthe intermediate blocks, 1?, whileth'e adjustment of the'cutting-dies in the direction of their length is efl'ected by the ad'- justable counectionsbetween the sliding'blocks 1 and their actuating-eccentrics 0 D The connection between the sliding blockG and arm G is adjustable, as is also that between the sliding ram H and its eccentric B".- The relative. position 4 of the. nail to the header'is shown in Fig. 11, in'which a denotes v the wheels held by the gripping-dies represented" by b, and the nail, as it is carried forward by the feed motion,will occupy the position 0, unless it should have been entirely sev ered by the action of the cutting-dies. Itwill sometimes occur'thatthe nail will not be sevcred from the wire, iuwhich case the downward motion of the header G will clear-the nail from connection with the wire, causing it to fall throughthe opening (I in the table A, and

pairs or adjustment. 7

by the proper adjustment of the sliding plate G by means of the adjusting-screw and tint- G"' the header G 'is made tojustclearthe v of the wire held by the gripping-dies.

The cam D on the shaft D, by which the gripping dies are actuated,is so shaped as-to allow the free end of the lever F to falland open the gripping-dies, thereby releasing the wire during the time that the wire is being fed to:

the machine, or during the rotation beneath the lever F of thesnrface from e to f. The

dies are then closed with a moderate pressure" on the wire from f to g, or while the operationof cutting and pointing is being performedjby the action of the dies I, while from g to f the lever F is raised, so as to bring a firm pressure on thewirein the grippingdie's while the operation of heading the nailiis performed.- Modcrate pressuge 'onlyis applied while the nail is vbeing pointed and out ch, as itv is necessary to allow the wire to move back in the grippingdies as'the nail is out ch, in case any pressureis i shafts B O D are/in the same horizontal plane i and also in the sam'ehorizontal plane as the gripping and cutting dies and the header Gf when in the position of' heading a nail. The act-ion ot'al l the eccentrics is brought, therefore,


in a direct line with the centers of. the shafts. BC D. The action of'the header a'sa (sleet-er" in clearing the completed. nail from thewire is peculiar, in that itis parallel with the nail as it is brought in contact with it,and its-position is easily adj us'tablewith referenceto the point of the nail, We are aware, howevicnthat a header has been employed to clear the nail. Such we do not claim, hio'adly. The sliding block F is easily removed from its ways in the anvil F, and the opposing ends of the grippingdies F F overlap the end of the steel tube F so'th'e force of the blow in heading the nail is received by the anvil throughthe tube F and ment of all the operating parts of the machine upon the top of the table A allows all the parts of the machine to be readily reached for re the ends of the dies F- and F. The arrange Wedo not confineourselves to the palticular method of constructingtheadjustablepbnnections between the several eccentrics and the parts moved by them, nor between the Slidingblock'G' and the arm G, all of whiclgt, as shown in the drawings, consist of the w ellknown form of a right and left screw-threaded bolt t I I .7 i

What we claim as ourinv'entiou, desire to secure by Letters Patent, ise

p 1.v In anail-machine, the combination, with ananvil-block to receive the force or: the blow in heading the nail and a vertically adjustab1e Liltube in contact withthe anvil-block,whereby said tube is vertically adjust-able simulta" neously with said gripping-dies, substantially as set forth.

2. In a nail-machine, the combination of an anvil to receive the force of the blow in heading the nail, a die-holding block vertically adjustable in ways on said anvil, a fixed die held in said die-holding block, alever pivoted in said die-holding block and. carrying a movable wire-gripping die, and an actuating-cam by which said lever is vibrated and the wiregripping dies closed, substantially as described.

3. in a nail-machine, the combination, with a fixed and movable gripping-die and a pivoted lever actuating said movable die, substantially as described, of a cam acting on said pivoted lever, the face of said cam being so formed as to effect the three successive movements of said pivoted lever, as described, whereby, first, the gripping-dies are opened and the wire released; second, the grippingdies are partially closed and the wire held with a moderate pressure, and, third, the gripping-dies are completely closed and the wire firmly seized, substantially as described.

4. The combination of the vertically-adj ustable block F, pivoted lever F2 gripping-dies F F,- adjustingscrews-F and actuating-cam D, as and for the purpose set forth. 5. The combination of blocks 1, sliding on horizontal ways, intermediate die-carrying blocks, 1 gibs I, binding-screws I and adjusting-screws 1 substantially as described.

6. The combination of the vertically-sliding block G, horizontally-sliding block G provided with a groove to receive the header,

header G held in said groove, and eyebolt G, as and for the purpose set forth;

7. In the heading mechanism of a nailana- -45 chine, the combination of'the vertically-sliding block G, a-horizontally-sliding plate carrying a nai1-h',-ader, a screw-threaded rod held in the vertically-sliding block and provided with an adjusting-nut, whereby the rearward motion of the header is limited, and a retractile spring by which said horizontally-sliding block is held against said adjusting-nut,-substantially as described.

8. In the heading mechanism of a nail-machine, the combination of the vertically-sliding block G, horizontally-sliding block G, carrying a nail-header, and cushioning-springs G to check the downward movement of said vertically-sliding block, substantially as described.

9. In the heading mechanism of a nail-machine, the combination of a vertically-sliding block, G, a horizontally-sliding block, Gd, 2. binding-bolt, G carried by said sliding block G and a nail-header, G held by said bindingbolt, substantially as described.

10. The combination, with a vertically-sliding-block and a horizontally-siiding bloc-k sliding in said vertically-sliding block and carrying the header, of a screw-threaded rod held in said vertically-sliding block and passing through a lug on said horizontallysliding block, an adj usting-nut on said screw-threaded rod, and a spring applied to said horizontallysliding block to hold it against said adjusting' nut, substantially as described, whereby the position of the header is adjusted relatlvely to the end of the wire.



Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US2829388 *21 Aug 19538 Apr 1958Dzama MichaelMethod and apparatus for making nails from wire stock during contrinuous advance of said wire stock
US3165103 *29 Jan 196312 Jan 1965Warner Harry LWater heater
US5088312 *8 Jun 199018 Feb 1992Wafios Maschinenfabrik Gmbh & Co.Upsetting device for upsetting the ends of elongated workpieces such as wire pieces
Cooperative ClassificationB21G3/12