Untitled record

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

To all whom it may concern:

Be it known that I, Samuel Vanstone, of the city and county of Providence, and State of Rhode Island, have invented a new and use5 ful Improvement in Machines for Bending Clew-Thimbles; 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 speciio fication.

The invention consists in providing a machine for bending clew or similar thimbles with two pivoted levers, the ends of which formdies corresponding to the form of the thimble, and 15 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 20 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 downward stroke and the clew25 thimble 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 30 skeleton view, showing the 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 clewthimble. Fig. 5 is a view of the blank out of 35 which the thimble is formed. Fig. 6 is a view of the plunger in which the cheeks 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, 40 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 45 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.

C 0 are pivoted levers, the ends of which form dies for bending and closing the thimble. 50

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^z is the hinged cheek - piece, 55 (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. G and 7 the 60 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 sufficieutly close together to compel the blank to bend over the dies, and the former is made of uniform 65 section, having the form of the inner portion of the thimble.

The operation of thq machine is as follows : A blank is laid between the guides oil the pivoted levers C G, as is shown in Fig. 3. When, 70 now, the former descends it bends the. blank aud presses it against the upper ends of the levers 0 G, forcing them apart until the blank and former come iu contact with the lower part, d d, of the dies, when the pressure ex- 75 erted by the plunger tilts the levers 0 0 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. 80