US778192A - Skin-stretching frame. - Google Patents

Description

N0 MODEL.

' PATENTED DEC. 20, 1904. J. M. & D.F. HARRIGA r SKIN STRETGHING FRAME. APPLICATION FILED MAR. 2a. 1903.

are. 778,192.

UNITED STATES Patented December 20, 1904.

P TENT OFFICE.

JOHN M. HARRIGAN AND DAVID E. HARRIGAN, OF CAMDEN, NEW JERSEY, ASSIGNORS, BY DIRECT AND MESNE ASSIGNMENTS, OF ONE-HALF TO BUR-K BROTHERS, OF PHILADELPHIA, PENNSYLVANIA, A FIRM.

SKIN-STRETCHING FRAME.

SPECIFICATION forming part of Letters Patent No. 778,192, dated December 20, 1904.

Application filed March 28, 1903. Serial No. 149,976. 7

To all whom it may concern:

Be it known that we,JoHN M. I'IARRIGAN and DAVID F. HARRIGAN, citizens of the United States, residing in Camden, New J ersey, have invented certain Improvements in Skin- Stretching Frames, of which the following'is a specification. Y

Our invention relates to that class of stretching-frames which are employed in the manu' facture of patent or enameled leather and serve to retain a hide or skin (hereinafter for convenience referred to as a skin') in a tightly-stretched condition after the application of the varnish or enameling compound to the same, the object of our invention being to so construct such a stretching-frame that the skin can be stretched therein with less expenditure of time and labor than is required with the stretching-frames now employed.

The figure in the accompanying drawing is a face View of a skin-stretching frame constructed in accordance with our invention and showing a skin stretched therein.

The frame is of the usual rectangular form, the bars 1 being composed of wood or other suitable material and the frame being stiffened by" cornerpieces 2.

Secured. to the bars of the frame are strips 3 of, wire-netting, and similar strips 4 extend diagonally across two of the corners of the frame, so as to reduce the opening within said strips to a'form more nearly approximating to that'of the skin.

The stretching of the skin within the frame is effected by means of hooks 5, some of which,

' it will be observed, are at least as long as the depth of the deeper indentations in the edge of the skin, all of which hooks engage with the skin at points near the edge of the same and also engage with the meshes of the woven- Wire strips 3 and 4:, the connection being effected eitherby means of single hooks where the distance from the edge of the skin to the strip is short or by means of two or more interlocked'hooks when the distance is longer.

The multitude of meshes presented by the woven-wire strips permits of the tight stretching of all parts of the skin, since the outer end of each connecting-hook or series of hooks can be adapted to that one of the numerous afi ect that particular portion of the skin with which said hook engages, thus overcoming a serious objection to that form of stretchingframe in which a lacing is employed, as the breaking or slackening of said lacing aflects the entire skin and frequently permits the same to sag or drop into contact with a skin on an adjoining frame, therehyspoiling the enameled surface of both skins and requiring retreatment of the same.

The frame may have the netting applied to but one face of the same Where it is intended for stretching a single skin, or in some cases the netting maybe applied to both faces of the frame, and the latter therebyadapted for stretching two skins, one on each face.

At that end of the frame where the diagonal strips L are used the strip 3 may be omitted, if desired. i While we have shown and described and prefer to use wire-netting for the reception of the outer ends of the stretching-hooks in the manner shown and described, it will be evident that strips of perforated sheet metal or like material will answer the same purpose, and such substitutes are therefore considered the equivalents of and are included in the term wire-netting as herein employed. In all cases, however, the skin is supported within butfree from contact with the netting, as such contact would in many cases so mar these portions of the skin which come in contact with it as to render them unsalable.

Having thus described ourinvention, We claim and desire to secure by Letters Patent' A skin-stretching frame provided with wireand hooks extending from said netting to the names to this specification in the presenve of skin, some of which hooks are at least as long two subscribing wltnesses.

as the depth of the deeper indentations in the JOHN M. HARRNlA N.

edge of the skin, whereby the latter is sup- DAVID F. HARRIGAN. 5 ported within but free from contact with the Vitnesses:

netting and frame, substantially as described. F. E. BECHTOLI),

In testimony whereof We have signed our l Jos. H. KLEIN.

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