US2257704A - Sewing machine motor and lamp bracket - Google Patents

Description

p 1941- s. REDLICH I 2,257,704

SEWING MACHINE MOTOR AND LAMP BRACKET Filed Oct. 10, 1940 JZloman RedLich,

INVENTOR.

- BY Mm ATTORNEY bracket Patented Sept. 30, 1941 2,257,704 SEWING MACHINE MOTOR AND LAMP BRACKET Solomon Redlich, New York, N. Consolidated Sewing Machine ..Inc., New York, N.

York

Y., asslmor to & Supply 00.

Y., a corporation of New Application October 10, 1940, Serial No. 360,557

1 Claim.

The present invention relates to the mounting motors for operating sewing machines and objects of the invention are to provide a structure which may be readily applied to the post or pedestal portion of a sewing machine head and which will provide a firm substantial support for the motor and may be utilized as well as a mounting for ,the lamp used with the machine.

Other objects and the novel features of construction, combination and relation of parts by which the purposes of the invention are attained will appear or are set forth in the following specification.

The drawing accompanying and forming part of the specification illustrates one of the practical commercial embodiments of the invention. The structure however may be modified and changed as regards this disclosure, all within the true intent of the invention, as will be apparent from the broad scope of the claim.

Fig. l is a rear elevation showing the mounting bracket as applied to and in use on an industrial sewing machine.

Fig. 2 is an enlarged broken sectional view as on substantially the line 2-2 of Fig. 1.

Fig. 3 is a detached view of the bracket plate.

The supporting device of the present invention is designed to be substituted for and to take the place of the cover plate usually applied over the opening in the back of the arm of the machine. This opening is indicated at 5, in Fig. 1. Usually it is closed by a substantially circular plate, held in place at the top by a screw 6. Upon loosening this screw, the cover plate can be swung to one side to provide full access to the shaft and eccentric rods, for lubrication, adjustment, repairs and the like. To use the present invention, this light cover plate is removed but the screw 6, may be retained for aiding in positioning and securing the special bracket plate which is-substituted for the cover plate.

The substitute bracket plate is shown as having a substantially circular upper portion 1, to serve as a closure for the arm opening 5, and a motor carrying lower portion 8, formed as a downward extension of such top portion. These upper and lower portions are shown as connected by a rearwardly and downwardly angled neck portion 9, provided to give the lower portion a rearward offset from the pedestal It. To stiffen this rearwardly inclined neck portion outwardly and inwardly, indented parts II and I2, I2, are shown struck in the material extending respecof the the substitution of different types tively from the upper cover portion across the upper bend l3, and extending from the inclined portion across the lower bend it, into the lower motor carrying portion 8. The integral ribs so formed serve as trusses bracing the upper and lower portions of the bracket in their offset relation and preventing weakening or breakdown of the intermediate inclined part 9, connecting said upper and lower portions.

At the top, the circular portion of the bracket is shown provided with a vertically extending slot I 5, to receive. the screw 6, and the lower part of this circular portion is shown as having inwardly struck bosses I'G, which engage over the lower edge of the circular opening at opposite sides of the center line, this combination providing a three-point bearing and centering support for the bracket.

In addition to the foregoing supporting and securing means, the bracket plate .is rigidly clamped to the back of the arm by a clamp lever ll, pivotally secured to the central portion of the plate by a rivet I8, and having its lower end inwardly offset at It, to extend down over and engage the inner face of the column below the arm opening 5. Ascrew 20, extending from the outer face of the bracket plate into this lever serves to tighten the lever against the inside of the arm and accordingly to draw the plate inwardly and to hold the plate firmly against the outer face of the arm.

The motor for driving the sewing machine is indicated at 2|, secured over the outer face of the lower offset portion of the bracket by one or more screws 22. To permit of a certain amount of adjustment of the motor on the bracket and or sizes of motors, the bracket may be made with a variety of screw receiving slots, such as indicated at 23.

To serve the further purpose of supporting a light for the sewing machine, the upper central portion of the bracket is shown as having'a lateral extension 24, projecting toward the head of the machine and terminating in an angled perforated lug 25, in which is secured the neck of the lamp socket 26.

The combination bracket is readily attachable to and readily detachable from the arm. In applying it, the clamp screw 20 is loosened so that the lower jaw portion l9, of the clamp lever will slip down behind the wall of the column and permit the positioning bosses I 6, to engage the lower perimeter of the arm opening. Then when the screw 6 is entered through slot IS, the bracket will be definitely centered and upon tightening this screw and clamp screw 20, the bracket will be iirmly secured so positioned. Bothvthe motor and the lamp socket may be mounted on the bracket before the latter is applied to the machine and similarly these may remain on the bracket when it is removed from the machine. The structure is light but amply strong, easily manufactured and low in cost and it provides a very practical means by which a pedal operated machine can be quickly converted to a motor driven machine and further, a machine equipped with a properly located lamp.

What is claimed is:

A motor mounting bracket for sewing machines, comprising a plate having an armhole covering portion at the upper end of the same and a dependent rearwardly ofiset motor supporting extension at the lower end of the same, said armhole covering portion having a vertical slot near the upper edge for passage oi! a screw for centering the bracket at the top, inwardly extending projections on the lower part or said lower edge portion portion engageable over the o! the armhole opening for centering and supporting the lower portion of the bracket over the armhole opening, a clamp lever pivotally connected at its upper end over the inner central section of the armhole covering section and having its lower end inwardly offset to hook in over the lower edge of the armhole opening, screw means extending through said armhole covering portion of the plate into said clamp lever for swinging the lever about its armhole covering pivotal mounting outwardly into firm clamping engagement with the edge portion of the armhole opening, said screw means being accessible at the outer face of the bracket for tightening the same whenever required and means on the lower motor supporting extension of the plate, below said screw means for enabling adjustable mounting of a sewing machine motor thereon.

SOLOMON REDLICH.

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