US17160A - Last-holder - Google Patents

Description

UNITED s'rAqrEs PATENT oEEroE.

BENJAMINMARSHALL, or PHILADELPHIA, PENNSYLVANIA.

LAST-HOLDER.

Specification of Letters Patent No..1'7,160, dated April 28, 1857.

To` all whom t may concern Be it known that I, BENJAMIN MARJsHALL,

. of Philadelphia, in the county of Philadelphia and State of Pennsylvania, have invented a certain new and useful Improvement in the .Construction of Portable Revolving Last-Holders, of which the following is a full, clear, and exact description, reference being had to the accompanying drawings and letters making part of the specification. v

Figure 1 is a perspective view of the whole machine with a last attached. Fig. 2 is a sectional ,perspective view of the last holder (I, J, K, L.)

The object of4 my invention is to meet the demands for such an article, at the present day, as will enable mechanics engaged in the manufacture of boots and shoes, to perform their work with greater ease and facility than by any other means now known or used to accomplish the said object.

To enable others skilled in the art to make, construct, and use my invention, I will now proceed to describe its construction and operation in detail.

(A) is the standard which is made of iron or other suitable'material having a base B B) through the center of which the standard (A) plays up and down and can be raised or lowered to any required height so as to accommodate the operator, and held in its position by means of the pin (a) which passes through the holes (b) and rests on the shoulder (m) ofthe base (B B) and can also be revolved around to any position to suit the operator who uses the machine, andV held in its position by means of the set screw (c). The base (BB) has legs orfeet through which the screws (0,0) pass into `the floor underneath thereby holding the whole machine firmly where the operator chooses to place it. Upon the top of the standard (A) is firmly attached a lap-iron (D) upon which the workman hammers his leather. Directly under the lap-iron (D) on the upper end of the standard (A) is firmly attached the bearing box (E) in the manner fully shown by the model, in which the horizontalV shaft (F) plays. The said shaft being a part of the arm (G) and upon which shaft the said arm is revolved, and held in any desired position .to suit the operator by means of the set screw The last holder (I, J, K, L) upon which the last (M) is placed has a journal (N) as shown in (Fig. 2) which enters the socket (O) on the curved end of the arm (G) and is held in its place by means of a short set screw (el) which enters the groove (e). See (Fig.,2.) The holder (I, J, K, L) is also revolved on the journal (N) in the socket (O) and held in any required position by means of the set screw (P), and the rsaid last-holder if it be necessary can also be oscillated at (J) by loosening the set screw (Q). On the outer end of the shaft (F)- is attached `a crank or eccentric (R) and to which is attached at the wrist (Z) and Vthe vouter end of the set screw (f) an clastic band (s) or a spring or its equivalent. The said set screw (f enters the ring (g) around the standard A), the said ring being moved up or down on the standard (A) so as to obtain the required tension to the elastic band (s) and held in its position by means of the set screw (f). The said elastic band serves as a counter-balance to the arm (Gr) as it revolves.

(T) is a rest iirmly attached to the standard (A), and against which rest the arm (Gr) has a firm bearing when the operator is pegging or doing any other work that requires the arm (G) to have a iirm bearing. The toe rest (l), upon which the toe of the last (M) rests, by the means employed by me can be raised and lowered and also moved backward and forward so as to accommodate a long or short last.

(U) is a hollow inclined plane into which one end of the screw (V) is fastened by means of the fulcrum pin (h). Said screw also passes up through the nut (W) into the toe-rest (L), the same being hollow for that purpose; the nut (W) having a constant bearing upon some part of the inclined plane (U) and the lower end of the toerest (L), also having a constant bearing upon the said nut (W) consequently as the nut is turned down on the screw (V) the toe-rest (L) follows it and is also brought forward to accommodate a short last as indicated by the dotted lines j) as `shown in Fig. 2. Also when the nut (W) is under the toe of the last which slightly raises it and thereby the -last is made to bind on the bolt (k) by which means it isheld firm in its place.

Having thus fully described my invention and itsv operation, I claim nothing in the idea of a revolving arm and shaft or a holder combined with it and the last attached. But

What I do claim as new and desire to secure by Letters Patent, is-

l.k The screw (V) and nut in combination with the inclined plane (U) for the purpose of raising and lowering the toe rest (L) and moving it back and forth, all

mmc

arranged in the manner substantially as' above set forth.

2. I claim the combined arrangement of the crank or eccentric (R) with the revolving shaft (F) and the attachment of the elastic band (s) or its equivalent at the wrist (Z) and at the set screw (f) substantially. as described.

In testimony whereof I hereunto set my hand this 26th day of March, A. D., 1857.

Witnesses Jos. W. NEWCOMB, W. C. CHOATE.

Images