US281984A

US281984A - dunbae

Info

Publication number: US281984A
Authority: US
Publication date: 1883-07-24
Anticipated expiration: 1900-07-24

Description

(No Model) 3 Sheets-Sheet 1.

J. H. DUNBAR. MACHINE FOR FORMING THE HOOKS OP TUB HANDLES. No. 281.984. Patented July 24, 1883.

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(No Model.) 3 Sheets-Sheet 2.

JIH. DUNBAR; MAcH'mE FOR FORMING THE HOOKS or TUB HANDLES. No. 281384; Patented July 24, 1883.

UNITED STATES PATENT OFFICE.

JOHN H. DUNBAR, OF PHILADELPHIA, PENNSYLVANIA, ASSIGNOR TO CLEMENT & DUNBAR, OF SAME PLACE.

MACHINE FOR FORMING THE HOOKS OF TUB-HANDLES SPECIFIOATION forming part of Letters Patent No. 281,984, dated July 24, 1883.

Application filed June 16,1883.

To all whom it may concern:

, Be it knownthat I, JOHN H. DUNBAR, a citizen of the United States, residing at Philadelphia, in the county of Philadelphia and State of Pennsylvania, have invented a new and useful Improvement in Machines for Forming the Hooks of Tub-Handles, of which the following is a specification.

The nature of my invention consists of a ma chine in which the hooks of tub and other handles are formed by duplicate devices hereinafter described, and without changing the position of the handles, thereby causing thehooks when formed to be arranged inthe sameplane, and also giving much facility to their construction.

In the accompanying drawings,which make a part of this specification, Figure 1 is afront elevation of the machine. Figs. 2 and 3 at opposite ends of the machine areafront and edge view, respectively, of one of the levers G. Fig. 4, Sheet No. 2, is a plan or top View of the machine. Figs. 5 and 6 are an edge and front View, respectively, of one of the treadles B on a scale four inches to the foot of thepreeeding and succeeding views. Fig. 7, Sheet No. 3, is a rear elevation of the stock A, to which the movable parts of the machine are connected. Fig. 8 is a bottom view of the same. Fig. 9 is a transverse section on the line at a; of Fig. 7.

Like letters of reference in all the figures indicate the same parts. p A represents the stock,to which all the movable parts of the machine are connected. It is provided with the base-plate a, for its attachment to a bench. It may be constructed in a single piece, if desired; butI prefer making it in separate pieces and bolting them together, as shown in Figs. 7, 8, and 9. It has vertical grooves b b at its ends, in which the treadles B B are hung, their fulcrum-pins c c passing through the front cheeks, d d, and rear cheeks, d d, respectively; Theupper edge of the stock A has a depression, 6, to receive the wooden roller 0, the central wire, D, of the handle resting upon the horizontal seats ff.

At one end of the stock there is a stop, E, connected therewith by means of screws 9 9. One end of the wire D rests against it, and the (No model.)

other end projects an equal distance from the opposite end of the roller 0.

The treadles B B are provided with elliptical pins h h, around which are formed corresponding hooks, z, 011 the ends of the wire D, there being openings at the termination of the bends to admit of the connection of the hooks with the eyes of the tub-ears, which, when closed after such connection, causes the hooks to be of circular form.

In eonj unction with the treadles B B for forming the hooks there are levers G G, which are hung on the fulcrum-pins q q, the rear ends of which are fast in the upper ends of the treadles. The front ends of these pins are reduced to form the elliptical pins hi1, above described. The levers G G have friction-rollers H H on pins jj, for pressing the ends of the wire D against the elliptical pins, whereby to give corresponding shape thereto.

The operation is as follows: The workman, sitting in front of the machine, places his feet 011 the pedals k 70 of the treadles B B, and by bearing against the turned-up ends I Z presses the lower ends of the treadles 0utward,whereby the elliptical pins 71 h at the upper ends thereof are elevated high enough to admit of placing the ends of the wire D on the horizontal seats ff of the stock A. When the wire is placed in position the roller 0, being in the depression e in the upper edge of the stock, the treadles are brought down to their lowest position, the inner edges of their upper ends rest= ing against the bottoms of the grooves b b in the ends of the stock A; and in this movement the elliptical pins h h press the ends of the wire D down into the position shown in full lines at the right hand of Fig. 1. The levers GGbeing lowered, the frictiourollers H H are caused to descend at the same time. In this movement the wire D is held down upon the horizontal seats f f by means of the pins m m, and the end curves, n a, of said seats give the proper curve to the inner parts of the hooks z z. Then one of the levers G is turned upon its fulcrum into its upward position, (shown in full lines at the left-hand end of the machine,) the frictionroller H bearing the end of the wire against the elliptical pin h to complete the form of the 2 v earnest hook, as represented. is then turned down into a corresponding position to that of the lever at the right-hand end, (shown in full lines,) whereby to remove it out of the way of the right-hand lever in its upward movement to complete the formation of the hook at the right-hand end in the same manner as described in relation to that at the left-hand end. The handles, after passing through the above described operation, are transferred to other machines for the completion of their formation; but as this finishing of the handles is well known in the arts, a description thereof is omitted in this place.

I claim as my iuventio11 1. The treadles B B, having elliptical pins h h and pins m m, in combination with the stock A, having elevated seats f f, provided with curves at a for giving the first bend to the hooks 2' 21, substantially as described.

2. The combination of the stock A, treadles B B, and levers G G, the stock having grooves The lever G at the left I b b and pairs of cheeks (Z and cl for the connection of the treadles by means of fulcrum-pins c c, and seats f f, to hold the handle-wire D the outer ends of the seats having curved ends a a to form the inner ends ofbends of the hooks, the treadles having elliptical pins hh and studpins m m, and the levers having pins j j, provided with rollers H H, substantially in the manner and for the purpose set forth.

3. A machine for forming the hooks i i of tubhandles, having at each end a treadle B, provided with pins h and m, and lever G, having a friction-roller, H, on headed pin j, in combination with the stock A, having a depression e, and seats ff, the several parts being constructed and arranged in relation to each other substantially in the manner and for the purpose set forth.

JOHN H. DUNBAR.

"\Vitn esses:

THOMAS J. BE'WLEY, STEPHEN USTICK.