US919095A - Nail-making machine. - Google Patents

Description

E. WALTON & F. W. MAGKE.

NAIL MAKING MACHINE.

nrmou'ron IILBD D30. 7, 1907.

91 9 ,095. Patented Apr. 20, 1909.

5 SHEETB-SHEET 1.

lmmmow Wifnzooeo w 8% o E. WALTON & 1?. W. MAGKE.

NAIL MAKING MACHINE.

APPLIOATION FILED DEC. 7, 1907.

Patented Apr. 20, 1909.

6 sums-sum 2.

al boznu g G W W E. WALTON & F. W. MAOKE.

NAIL MAKING mcnmn.

APPLICATION FILED DEC. 7, 1907, 91 9 ,095, Patented Apr. 20, 1909. BHBET 3.

E. WALTON &; I. W. MACKE.

NAIL MAKING MACHINE.

APPLICATION FILED DEC. 7, 1907.

9 1 9,095 Patented Apr. 20, 1909.

E. WALTON 8: I. W. MAGKB.

NAIL MAKING MACHINE.

APPLICATION FILED no. 7, 1907.

919,095. Patented Apr. 20, 1909.

5 SHEETS-SHEET 5.

having shanks.

UNITED srArEs PATENT OFFICE.

ERNEST WALTON AND FREDERICK W. MACKE, OF KOKOMO, INDIANA, ASSIGNORS BO H. B. SHERMAN MANUFACTURING COMPANY, .OFBATTLE CREEK, MICHIGAN, A GORPORATIGN or MICHIGAN.

' l IL-MAKING QH NE- Patented. April 20, 1909.!

Application filed December 7, 1907. Serial No. 406,597.

To all whom it may concern:

Be it known that we, ERNEST WALTON and FREDERICK W. theme, of Kokomo, Howard county, Indiana, have invented certain new and useful Improvements in N ail-Making Machines; and we hereby declare that the following is a full, clear, and exact description thereof, reference being had to the accompanying drawings, which form part of this specification.

This invention is an improvement in nail making machines, and .is a novel machine especiall designed for making roofin nails arge sheet metal heads an wire The object of the invention is to provide a machine whereby the wire from which the shanks are formed, and the strap-metal from which the heads are formed, are fed forward on intersecting lines, and, preferably, in its operation a proper length of wire is fed toward the operating point and clamped by suitable dies; and a proper length of strapmetal is fed toward the operating point and stopped; then a disk or nail head is punched from the strap and simultaneously-forced onto the end of the wire, the wire punching the head; then the head is preferably concavo-convexed by a further movement of the dies; then the shank is riveted to the- 1161 by means of a header-rod which preferably operates through the male punching die. Then the heading and unching dies are retracted and the wire, wit the attached head, is again fed forward the length of a nail; then the complete nail is severed from the wire by means of cutting dies, which preferably are also pointing dies. The feeding forward of the wire with the attached head, is merely a repetition of the first mentioned step of feeding the wire; and when the nail is severed from the wire, the end of such wire is in position to have another head attached thereto. The wire is clamped after each nail is severed therefrom and remains clamped until another head has been attached thereto as described. Thus at each operation of the machine a nail-head may be blanked from the strap metal, forced onto the end of the wire, and concavo-convex'ed, and the wire is swaged thereto; then the ir is f d forward a i e gth, nd a comp te n s se re he efr is cycle o operati ns s complet for ach op r tion view of the machine.

'vertical sectional view on line of the machine, and preferably for each ro tation of the main shaft thereof. 1

The invention will be more clearlyunderstood from the following description of the machine illustrated in the accompanying drawings which represent a ractical em bodiment of the invention an the essential features thereof, and the construction and combination of parts constituting the invention and for which protection is desired herein, are set forth in the appended claims.

In said drawingsFigure 1 is a top plan Fig. 2 is a side elevation of Fig. 1. Fig. 3 is an enlarged plan view of the die-portions of the machme, with the strap feeding devices removed-and the dies opened. Fig. 4 is a horizontal section through Fig. 4, with the dies closed. Fig. 5 is a transverse vertical section on line 5'5, Fig. 3. Fig. 6 is a transverse section on line 6-6, Fig. 1. Fig. 7 is a view similar to Fig. 4 showing the position of the parts previous to the nail being headed. Fig. 8 is a detail 8-8 Fig. 5. Fig. 9 is a detail sectional view on line 99, Fig. 8. Fig. 10 is a detail view of the wire clamping dies. Fig. 11 is a perspective view of a complete roofing nail. Fig. 12 is a side elevation of the drive side of the machine. Fig. 13 is a bottom plan view partly broken away; and Fig. 14 is a plan view of the strap feeding device.

The wire w is led from a reel or coil (not shown) and fed by suitable meansv to the clamping die, which is preferably composed of similar opposite parts 1, 1, (see Figs. 3, 4, and 10); cac part 1 has a wire guiding channel 1 adapted to firmly bite the wire 10 when the die is closed thereon. The opposite parts 1 of the clamping die are respectively operated by means of a push-pin 2 inter- Pos d b t een the b o k a d short arm f a ev r pi o ed to a pi attac d o the p of th s n f m an the l ng arm f lever carr es a ol r 2 hi h ease as a attached; t9 th ma n ha t S;

is suitably journaled in bearings F on the top of the main frame. The roller 2 may be held in contact with the cam 2 b means of a spring 2 as shown in Fig. -1, suc spring tending to move the lever and cause block 2 to separate from block 2 and open die 1. The block 2 ma be connected to the lever 2 by alink 2 0 any suitable kind, so that it will be drawn away from block 2-, and open die 1, when the lever 2 is moved by spring 2 A bolt 2 may be tapped through the lever 2 andengage pin 2, so as to regulate and adjust the amount and time of pressure exerted by cam 2 upon the dies through lever 2. The block 2 may be adjustably mounted in a holder casting 2 securely attached to a projection F on top of the main frame; said block 2 being secured in position by bolts 2 2. The block 2 preferably has a dove-tailed groove-and-slot connection with the holder 2 as shown.

The parts 1, of the wire clamping die, also form 1n the example shown, the female mem er of the blanking die for cutting the nail-heads out of the metal strap .9. As

shown in Figs. 3, 4, 7, 10, the forward end of parts 1, 1, are provided with opposite semicircular recesses 1 1 which when the die is closed form a circular chamber or die, concentric to the wire groove 1 (see Figs. 4, 7 and 10) and preferably the bottoms of the recesses 1 1 areconvexed as shown at 1, for a purpose hereinafter described.

3 designates a male blanking die which is adapted to cooperate with the female blanking die 1 in the ends of clamping die 1 and out a circular nail head from the metal strap 8 which is fed between the dies 1 and 3 and aeross the line of the wire feed by suitable means as hereafter explained. This male blanking die 3 is removabl fastened to a slide 3 which is guided in al ox F attached to the top of the main frame, and said slide has an extension 3 which is attached to an eccentric box 3 inclosing an eccentric or crank 3 on shaft S, so that for each rotation 3f shaft S the die 3 is moved to and from the Arranged within the die 3 is a header-rod 4, which is adapted to operate through an axial bore in the die 3 and slide 3 and is connected to a slide 4*, guided in a box F on the frame, and connected to an eccentric-box 4 inclosmg a crank 4f on shaft S.

Located in front of the blocks 2, 2, are cutting and pointing dies 5, which are preferably detachably secured in recesses in blocks 5 adjustably secured to arms 5 pivotall mounted on rods f attached to brac ets f"'depending from the mainframe. These arms 5 may have depending ortions 5 against which press springs 5" w ch are so arranged as to tend to rock the arms 5' and normally se arate the cuttin dies 5.

As shown in igs. 5, 8 and 9, t e cutting fastened where adjusted by die' 5 is secured in block 5, by tap-bolts 5"; The block 5 is adjustable vertically on arms 5,- by means of a setting bolt 5, and can be means of a threaded shank 5' and nut 5 hese various adjustments providing means for adjusting the cutting and pointing dies 5 accurately.

The cutting dies are moved inward toward the wire at the proper time by means of levers 5 which may be pivoted at 5 on top of the main frame, and have bolts 5 tapped through their short arms engaging the blocks 5 as shown in Figs. 1 and 3. The long arms of said levers 5 carry rollers 5 engaging grooved cams 5 fastened on shaft S as shown.

The wire '11; may be fed forward to dies 1 by any suitable means. As shown, it is first passed through a straightener W, of any suitable construction, attached to one end of the main frame, and then led between a fixed jaw 6 and a pivoted jaw 6 attached to a slide 6, the jaw 63* being actuated by a spring 6 and adapted to bite the wire when the slide 6 moves inward toward the dies and to slip on the wire when the die moves away from the dies. The slide 6 is supported by a rod 6 guided in bracket F attached to the main frame and to one end of slide 6 is pivoted a rod 6 connected to one end of an oscillating lever 6 which is pivoted on a bolt 6 on the main frame, and the other end of lever 6 is connected by a rod 6 to a pin 6 adjustably secured to a block 6 fastened on shaft S. The connection between rod 6 and lever 6 is preferably an adjustable one, as indicated at 6, so that the throw of the slide 6 can be varied according to the length of wire it is desired to feed into the machine at each operation. The length of wire fed determining the length of the nail shanks.

The strap 8 may be fed vertically downward between the dies 1 and 3 by means of rollers 7 on shafts 7 journaled in a bracket F mounted on top of bracket F, the said shafts 7 have intermeshing gears 7 and on one of said shafts is a ratchet 7 which is engaged by a pawl 7 ivoted to lever 7 loosely mounted on suc shaft 7 and oscillated thereon by means of a link 7 attached to an eccentric strap 7 and surrounding an eccentric 7 on shaft S. The strap 8 is led in from a reel (not shown) through a suitable guide to the rolls 7. As shown it is passed through a guide slot 7 in a bar 7 m attached to casting F above the rolls, said slot having a spring actuated presser late 7 1 at one end, which tends to keep t 1e strap properly alined against the opposite end of the slot.

Preferably the wire is roughened or barbed so as to cause the nail to take a better hold in the wood. This may be accomplished in any way desired, as by milled feed rolls. As shown 1n Fig. 4, the wire grooves 1 in the parts 1 of the wire clamping die may be circular disk or ridged'u at1'1;-so that when closed u wire the "will roughen the'same as 'eatei- The aft Sma be .driven1in any suitable manner, and each revolutionthereof: the machine goes through a cycle-ofopera-- tions and produces a complete nail. The cams and eccentrics are'so adjusted on shaft S that the parts all operate in proper time and sequence, and the operation is briefly as follows: Assuming that the wire to hasbeen properly fed forward through the clamp-' ing die 1, its end rojecting into the recess 1' as indicated in F while the strap 8 has been fed down until its end .lies between the dies 3 and 1, die 3 being in retracted position, the die 1 is then closed upon the wire by the cooperation of cam 2 and lever 2, and while the wire is thus clamped the slide 6 moves backward preparatory to again feeding the wire. While the wire is thus clamped by die 1, the blanking die 3 moves forward and catches the metal strap 8, (which has been previously fed down between the dies 3 and 1, see Fig. 3), and punches a preferably nail-head H from this strap and forces said head into the female blanking die l andagainst the projecting end of the wire, causing the latter to erforate the head; and after the blank is orced upon the wire (see Fig. 7) the head is preferably concavoconvexod by compression between the convex bottom 1 of die 1 and the concave face of die 3 (see Figs. 4 and 7). Then' while the head H is tightly held between the dies 1 and 3 and the wire tightly held by the clam ing die, the header-rod 4, which has been fo lowing up the die 3, comes into contact with the end-of the wire projecting through the head andswages the same to the head as shown ath in Fig. 4. The parts of the clamping die are preferably slightly recessed-around the inner ends of grooves 1*, as shown at=1 in Figs. 4-7, so that a portion of the metal of the wire will be forced back and swaged against the inner side of the head, as shown at h in Fig. 4, and thus the head is united to the wire shank in a erfectly rigid and secure manner. The header-rod 4 then retreats, being followed up by die 3, and the block 2 is moved so as to open the clam ing die and release the wire; whereupon t e' wire is fed forward so as to push the completed head and attached part of the wire, out of the blanking die or recess 1 a distance equal to the desired length of the shank of the nail. Then, while the die 3 and header-rod 4 are retracted (see Fig. 3), the cutting and pointing dies 5 are caused to move inward and sever a nail len th, with the head attached, from the wire. The severed and com leted nail drops out of the way before the die 3 again brings" the stra 8 against die 1. The strap feed is operate in proper time to feed in a sufficient the} igs. 3-7, and that mean-- lengflt-of' strap to enablea=newhead to be melted-therefrom at' themext -operation ot? iesili The block 2 is'then'again moved' cause the clamping die to 1 clamp -tl'1e"wirje;

and the cycle 4 of: operations is repeated. Thus far and during each rotation of shaft S a complete nail as s own in Fig. 11',- is formed 1n the manner described.-

not restrict ourselves to the precise structure shown in the drawings.

Having described our invention what we claim as new and desire to secure by Letters Patent is:

1. In a wire nail machine, the combination of a wire clamping die, a female blanking die at one end of thewire clamping die, a male-- blanking die cooperating with thefemale blankin die, a header rod arran ed axially within t e male clamping die, means for operating said dies "and header rod.

2. The combination 'of 'a wire-clamping die formed ofopposite members having wire clampin grooves in their opposed faces, andrecesses in their outer ends forming afemale blanking-die; with a male blankin die ada t ed 'to cooperate with the femaleb anking ie when the clamping die is closed, substantially as described.

3. The combination of a wire clamping die formedof opposite-members having wiregrooves in their'opposed faces and recesses in their outer ends orming a'female blankingdie concentric-to the wire; with amale blanking die adapted to cooperate with the female I blanking die when the clamping die is closed;

a header rod operating axially of the male blanking die; and means for operating said dies and header rod.

4. The combination of wire clamping dies, head blanking dies in axial alinement therewith, a header rod operating through the blanking dies and means for operating the wire clam ing and head blanking dies and header rod? 5. In a nail making machine the combination of wire clamping dies, means for feeding a Wire to said dies, means for feeding a strap in front of the clampin dies, means for blanking a nail head from t e strap and forcing it upon the wire shank held by the clamping dies, means for swaging the shank to the head, and means for thereafter cutting the wire into nail lengths.

6. In a nail making machine the combination of means for feedin a wire; dies for holding the wire; means or feeding a strap tion of means for feeding a wire; dies for hlding the wire; means for feeding a strap to in terseet the wire; means for blanking a nail head from the strap and forcingit upon the wire, the wire puncturing the head; means for swaging the wire to the head; and means for Q severing a nail length having the head attached,-from the wire.

8. In a machine for making roofing nails, the combination of a wire clamping die; means for feeding a strap across the line of i the wire feed; dies for blanking a head from the strap and forcing it upon the end of the wire held by the dies, the wire puncturing the head; means for then swaging the end of the wire to the head; means for feeding the wire forward through the clamping die after the head is attached thereto; and means for severing a nail length of wire having the head attached-from the wire.

9. In a nail making machine, the combination of wire feeding means; a wire clamping die means for feeding ametal strap across the line of wire feed, a female blanking die at the end of the wire clamping die, a male blanking die opposite the female die; means for swaging the head to the wire, and means for severing a nail length from the wire after the head is attached thereto.

10. In combination, a wire elampingdie; means for opening and closing said die; means for feeding a wire through said die when opened and after the head has been attached thereto; head blanking dies in axial alinement with the clamping die; means for feeding a metal strap across the line of wire feed and between the male blanking die and the clamping die, and: means for 0 erating the blanking die to cut a head fromt e strap and force it upon the end of the wire held by the clam ing die; with means to rivet the wire to tie head, and means for severim a nail length from the wire after the head as been attached thereto.

11. In a nail making machine, the combination of means for feeding a length of Wire; a die for clamping the Wire; means for feed ing a metal strap; dies for blanking a head from such stra and impaling it upon the end of the Wire held in the clamping die; means for swaging the Wire to the head, the wire feeding means operating to move the wire forward after the head is attached; and means for thereafter severing the headed portion of the wire into a nail length, and pointing the nail.

12. The combination of a Wire clamping die, wire cutting and pointing dies on opposite sides of the line of Wire feed, means for operating said pointing dies and means for feeding a wire through the clamping dies; with means for feeding a metal strap across the line of Wire feed, and means for blanking heads from said strap and impaling same upon the end of the wire prior to the severance thereof.

13. In a nail making machine the combination of wire clamping dies, means for opening and closing the same, a female blanking die at one end of the clamping dies, a male blanking die, means for reciprocating said male blanking die, a header rod arranged axially of and operating through the male blanking die, and means for operating said header rod.

In testimony that we claim the foregoing as our own, we affix our signatures in pres ence of two Witnesses.

ERNEST WALTON. FREDERICK W. MACKE In presence of WILLFORD C. RoBINsoN, FRANK M. ANnREss.

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