US1556795A - Press - Google Patents

Description

oct.. 13, 192s. y1,556,795

w. c; MARSHALL.

PRESS Fed Aug. 4. 1922 GMW.

Patented Oct. 13, 1925.

UNITED STATES PATENT OFFICE.

WILLIAM C. MARSHALL, O E SYRACU'SE, NEW YORK, ASSIGNOR TO UNITED STATES HOFFMAN MACHINERY CORPORATION, 0F NEW YORK, N. Y., A. CORPORATION OF DELAWARE.

PRESS.

To all 'whom it may concern:

Be it known that I, WILLIAM C. MAR- SHALL, a citizen of the United States, residing at Syracuse, in the county of Onondaga and State of New York, have invented certain new and useful Improvements in Presses, of which the following is a specification.

This invention pertains to presses and more particularly to garment presses, wherein there is usually employed two cooperating pressing elements, one being fixed and the other movable toward and from the same to-effect the pressing operation.

Such machines are well known in the art and reference. may be had, for instance, to Letters Patent No. 928,199 to A. J. I-Ioi'- man, dated July 13, 1909. It may be said to embody a fixed buck and an overlyingv presser head carried at one end of a lever and moved toward the buck into pressing relation with the work upon the buck by suitable means, as toggle mechanism or the like.

Ordinarily the lever to one end of which the presser head is attached is counterweighted so as to render the manual operation of closing of the press easy. Press heads vary in size and consequently in weight, according to the particular pressing operation for which the press is designed. Usually, however, the levers for a given range of presses will all be of the same size and it therefore becomes essentiall to employ dierent size counterweights necessitating the production of various size weights and the employment of a particular weight for a particular size head.

The main object of the present invention resides in the formation of a weight box or housing upon the lever and in so arranging the same that one or more weights may be placed and held therein, the weights'being adjustable toward and from the pivot of the lever so as to render them more or less effective in' their counterbalancing effeet.

The invention is illustrated in the annexed drawing wherein Fig. 1 is a side elevation, partly in section, of so much of a press as is necessary to an understanding of the invention, and

Fig. 2, a top plan view thereof.

In said drawings 1 denotes the fixed buck and 2 the press head secured to the forward bifurcated end of a lever 3 of the first order. Said lever is fulcrumed upon a shaft 4 mounted in a suitable frame or support 5, a portion of which is shown in dotted lines. The lever may be operated by any suitable mechanism, as for instance a toggle mechanism, a portion of one link whereof is shown at 6.

The lever at its rear end is provided with a hollow box 7, the outer end whereof is open but designed to be closed by a cover or closure 8 held in place by nuts 9 and 10 screwed upon a threaded stem or stud 11. Said stud is threaded throughout its length and its inner end is tightly screwed into an opening tapped into the lever at the forward end of the box a-nd preferably in line with the axis of the box.

Two weights 12 and 13 are shown as located within the box, being held in position therein upon the stud 11 by nuts 14 and 15 screwed upon the stud. As will be readily appreciated the counterbalancing effect of the weights may be varied by adjusting them along the stud, being moved toward the left when the head is heavy and to the right when the head is relatively light.

A greater or less number of weights will of course be initially positioned in the box according to the weight of the head, and a nice balance effected by the adjustment of sair weights backward or forward upon the stu In some instances where the head is quite heavy it may be necessary to entirely lill the box, but owing to the adjustability of the weights as to position and the consequent change in eective counterbalancing action thereof such complete filling of the box will rarely be found necessary.

The provision of the integral receptacle for the reception of the weights provides a structure which is neat and always appears the same without regard to the number of weights employed. It does away with the necessity of a large number of different weights which it has been the custom heretofore to use, besides admitting of a much closer counterbalancing of the parts.

What is claimed is z- In a pressing machine, the combination 5 of a fixed pressing element; a movable pressingelement; a lever to one end of which said movable element is attached; an open ended box formed as an integral extension of the lever; at least one Weight mounted in the box and adjustable toward 10 and from the fulorum of the lever; and a closure for the box.

In testimony whereof I have signed my name to this specification.

WILLIAM C. MARSHALL.

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