US3063371A - Marker die - Google Patents

Description

Nov. 13, 1962 J. LQWELL r 3,063,371

MARKER DIE Filed March 9, 1956 FIG. 2.

United States Patent Ofifice 3,063,371 Patented Nov. 13, 192

3,063,371 MARKER DIE John 0. Lowell, Kirkwood, and Opel A. (Iarlson, Afiton,

Mm, assignors to Trim Dies, Inc., St. Louis, Mo., a corporation of Missouri Filed Mar. 9, 1956, Ser. No. 570,520 4 Claims. (Cl. 101-368) This invention relates to marker dies, and more particularly to dies such as are used in the manufacture of shoes for marking patterns in ink on leather and other shoe materials.

Among the several objects of the invention may be noted the provision of a marker die of the class described adapted to make cleaner, sharper ink lines on the material being marked; the provision of a die of the class described which does not scar the material; the provision of a die of this class which is less subject to ink accumulation than prior dies, thereby requiring less cleaning and avoiding mark blurring due to ink accumulation; and the provision of a die having the stated characteristics which is economical to manufacture. Other objects and features will be in part apparent and in part pointed out hereinafter.

The invention accordingly comprises the constructions hereinafter described, the scope of the invention being indicated in the following claims.

In the accompanying drawings, in which one of various possible embodiments of the invention is illustrated,

FIG. 1 is a perspective of a marker die of this invention; and,

FIGS. 2 and 3 are enlarged sections taken on lines 22 and 3-3 of FIG. 1.

Corresponding reference characters indicate corresponding parts throughout the several views of the drawings.

Referring to the drawings, a marker die of this invention is shown to comprise a fiat rigid base 1. This base has a plurality of grooves therein designated 3. These grooves follow a pattern which it is desired to mark in ink on leather or other material. A marking blade 5 is received on edge in each groove and projects from the base 1, means being provided for holding the blade in the groove.

More particularly, the base 1 comprises a flat base plate member 7 and a flat face plate 9 secured to the base plate 7 by adhesive 11. The base plate 7 and the face plate 9 may be made of any suitable metal, such as aluminum, or of plastic, or fibre board material. Any suitable adhesive may be used, for example, the synthetic resin and latex types.

As illustrated in FIGS. 2 and 3, the grooves 3 are formed by cutting slots in the face plate 9 prior to its assembly with the base plate 7. The slots may be cut by means of a jig saw, in which case holes such as indicated at 13 are drilled in the face plate for reception of the jig saw blade to start the cutting.

Each blade 5 consists of a thin narrow strip of a sheet material, such as vinyl plastic, fibre board, or of a nonferrous metal such as brass. Each blade is inserted edgewise into its respective slot, in which it has a snug fit, and

has its edge in the slot in contact With the adhesive 11, the latter thereby serving as means for holding the blade in the slot. The face plate may be one-sixteenth inch thick, and each blade three-sixteenths inch wide, for example, so that each blade projects approximately oneeighth inch from the face plate. Each blade may be one thirty-second inch thick, for example. When a metal face plate is used, it may be peened as indicated at 15 to provide deformations on opposite sides of each slot for additional securement of each blade in its respective slot.

'It is preferred that a plastic, such as vinyl or cellulose acetate, be used for the blades 5, since this is ink-repellent and prevents undue accumulation of ink on the blades, thereby avoiding blurring of lines, and avoiding any necessity for frequent cleaning. However, thin sheet metal, such as brass, may be used. When the blades are cut from strip stock, it is preferred that they be cut so that the blade length is transverse to the strip stock.

In view of the above, it will be seen that the several objects of the invention are achieved and other advantageous results attained.

As various changes could be made in the above constructions without departing from the scope of the invention, it is intended that all matter contained in the above description or shown in the accompanying drawings shall be interpreted as illustrative and not in a limiting sense.

We claim:

1. A marker die comprising a body consisting of a base plate and a face plate, the two plates having complementary faces adapted to be secured together; secured to the base a layer of adhesive extending substantially throughout the interfacial area of said plates and binding them together, said face plate having a slot extending through it to make a groove in the body from one side through to the layer of adhesive, and a marking blade having a thickness approximately equal to the width of the slot, the blade being received on edge in the slot extending through the slot into contact with the adhesive and being held in the slot by said adhesive; the blade having a width greater than the thickness of the face plate, thereby projecting outward from the slot, and having a marking edge.

2. A marker die as set forth in claim 1 wherein the marking blade is a plastic blade.

3. A marker die as set forth in claim 1 wherein the face plate is a metal plate and has deformations at the slot for additional securement of the blade in the slot.

4. A marker die as set forth in claim 3 wherein the blade is an ink-repellent plastic blade.

References (Iited in the file of this patent UNITED STATES PATENTS 1,135,145 Stevenson Apr. 13, 1915 1,646,413 Lossman Oct. 25, 1927 2,057,805 Valiquette Oct. 20, 1936 2,108,822 Lippincott Feb. 22, 1938 2,458,867 Messersmith Jan. 11, 1949 FOREIGN PATENTS 981,639 France Jan. 17, 1951

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