US254249A - Clew thimbles - Google Patents

Description

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' S. VANSTONE.

MAGHINE FOR BENDING GLEW-THIMBLES. No. 254,249, Patented Feb} 28,1882.

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v MACHINE FOR BENDING OLBW THIMBLES. No. 254,249. I Patented Feb. 28.1882.

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i UNITED STATES PATENT Orrin.

SAMUEL VANSTONE, OF PROVIDENCE, RHODE ISLAND.

MACHINE FOR BENDlNG C'LEW-THIMBLES.

SPECIFICATION forming part of Letters Patent No. 254,249, dated February 28, 1882.

- Application filed October 17, 1881. (No model.)

To all whom it may concern:

Be it known that I, SAMUEL VANsToN'n', of the city and county of Providence, and State of Rhode Island, have invented a new and useful Improvement in Machines for Bending Clew-Thiinbles; and I hereby declare that the following is a full, clear, and exact description of the same, reference being had to the accompanying drawings, forming part of this specification.

The invention consists in providing a machine for bending clew or similar thimbles with two pivoted levers, the ends of which form dies corresponding to the form of the thimble, and with a plunger, on which a former is placed between two cheek-pieces, the whole arranged so that the descent of the plunger will bend the central part of a blank and the two pivoted levers will close the same over the former, as will be more fully set forth hereinafter;

Figure 1 is an end view, partly in section, showing the two pivoted levers closed over the former at the moment when the plunger has completed its downwardstroke and the clewthimble is bent around the former. Fig. 2 is a side view of the device, showing one of the cheek-pieces hinged to the plunger and held between rolls, in solid lines, and the cheekpiece as raised, in broken lines. Fig. 3 is a skeleton view, showingthe former resting on the blank and the pivoted levers forming the bending-dies open to receive the blank and former. Fig. 4 is a perspective view of a (-lewthimble. Fig. 5 is a view of the blank out of which the thimble is formed. Fig. 6 is a view of the plunger in which the checks are fixed, and the former can be removed endwise to release the thimble. Fig. 7 is a sectional view of the plunger provided with around former, and. indicating in broken lines that a heartshaped former may be used.

In the drawings, A represents the plunger, constructed to be secured to the reciprocating cross-head or similar reciprocating device, by which the plunger may be forced into the die, so as to bend the blank.

B is the former around which the blank is bent so as to form the thimble.

O O are pivoted levers, the ends of which form dies for bending and closing the thimble.

D is the blank, cut out in such shape as will form the thimble when it is bent in the completed form.

E E are the cheek-pieces by which the former B is held, and E is the hinged cheek piece, (shown in Fig. 2,) provided with a handle, so that the same can be opened and the bent thimble withdrawn. in this case the plunger passes between the rollers F F before it reaches in its descent the blank; but in Figs. 6 and 7 the former B can be forced out of the follower, and thus the thimble can be removed. The two cheek-pieces in Figs. 6 and -7 are sulficiently close together to compel the blank to bend over the dies, and the former is made of uniform section, having the form of the inner portion of the thimble.

The operation of the machine is as follows A blank is laid between the guides on the pivoted levers O G, as is shown in Fig. 3. When, now, the former descends it bends the blank and presses it against the upper ends of the levers G O, forcing them apart until the blank and former come in contact with the lower part, (1 d, of the dies, when the pressure exerted by the plunger tilts the levers G O on their pivots and the upper part of the dies closes the blank over the former, as is shown in Fig. 1, the whole operation being performed in one stroke.

Having thus described my invention, I claim as new and desire to secure by Letters Patent- In a machine for formingclew or other thimblcs, the combination, with the follower A and the former B, supported in the cheeks E E, of a yielding two part die constructed to bend the thinible around the former, as described.

SAMUEL VANSTONE.

Witnesses:

J. A. MILLER, Jr., J OSEPH A. MILLER.

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