US1335103A - Motor-support for sewing-machines - Google Patents

Description

J. A. FLANAGAN.

MOTOR SUPPORT FOR SEWING MACHINES.

APPLICATION FILED)UNE17,19I9.I

- 1,335,103. Patented Mar.3(),1920.

'onrrnn STATES LMPATENT OFFICE.

JAMES: ALEXANDER FLANAGAN', OF TORONTO, ONTARIO, CANADA.

MOTOR-SUPPORT FOR- SEWING-MACHINES.

To all whom it may concern:

Be it known that I, JAMES ALEXANDER FLANAGAN, a British subject, and residentof the city of Toronto, in the county of York and Province of Ontario, Dominion of Canada, have invented certain new and useful Improvements in Motor-Supports for Sewing-Machines; and I hereby declare that the followin is a full, clear, and exact description of t e same.

This invention relates toa motor support for sewing machines which will maintain the correct relation of the driving element of the motor with the flywheel of the machine, as hereinafter set forth and particularly pointed out in the claims, reference being had to the accompanying drawings in which I Figure l, is a rear elevation of the motor support showing it attached to the arm of a sewing machine, I

Fig. 2, is a. side" elevation of the same, with the flywheel removed,

Fig. 3, is a top plan view of the motor support detached from the sewing machine, on a larger scale than Figs. land 2, and

Fig. 4, is a vertical section on the line aha, Fig. 3.

For the attachment of the motor support to the sewing machine the vertical part b of the sewing machine arm 6- has a slideway a" preferably of a dovetail formation, and the motor support has a slide a formed with a dovetail tongue at to enter the slideway a and provide for the vertical adjustment of the support relatively to the flywheel is of the sewing machine.

Operating transversely through the slide (a is a set screw 0 adapted to bear against the inner surface of the slideway a and press the dovetail tongue against the dovetail groove, to lock the slide in its vertically adjusted position.

Extending lateral]y-rearwardly from the slide (1 are the horizontal arms 2" of a pair L: of upwardly curved standards i, and rigidly supported by the standards is the motor supporting member (Z which is preferably of cylindrical. shape, and has a cylindrical bore 12, the diameter of which at its lower end is "educcd to form an annular flange (13".

L nned within the bore (5 is a helical spring (2, the bottom coil of which is bent to form a downwardly extending arm c, which enters within a corresponding aperture in the flange cl and holds the spring against rotation. The uppermost coil of the'spring Specification of Letters Patent.

Patented Mar. 30, 1920.

Application filed June 17. 1919. Serial No. 304,793.

is bent to form an arm e at right angles to the axis of the spring. This arm extends across the top'surface of the supporting member d and is bent upwardly to form a .crank 6 The purposeof the spring e is to yieldingly hold the pulley of the motor in contact with the flywheel 7c.

A' plate f is mounted on the top of the supporting member (1 and is provided with a central screw threaded bore f and two apertures f in diametrical alinement through the center of the bore f, for the screws by which the-plate f is secured to the bottom of the motor and in the plate f is a radial slot 1' to receive the cranked extremity e of the helical spring e.

A pivot bolt it passes axially through the supporting member (5 and the spring a. The upper end of the bolt h is screw threaded to enter the screw threaded bore f and engage with the screw threads therein and the lower end is formed with a head h to engage the bottom of the supporting member and oscillatingly and removably connect the plate f thereto, the plate and the pivot bolt h serv lation with the sewing machine and the spring c applying a tension to the plate to maintain it in that position.

Having thus fully described my invention, what I claim as new and desire to secure by Letters Patent is:

1. A motor support for a sewing machine, comprising a supporting member, means oscillatingly mounted'on said member for attachment to the motor, means yieldingly maintaining the fixed relation of the oscillating means to the supporting member, and means for attaching the supporting member to a sewing machine, said attaching means comprising a slide element for the vertical adjustment of the motor support.

2. A motor support for a sewing machine, comprising a cylindrical supporting member, a plate oscillatihgly mounted on said member for attachment to the motor, means yieldingly maintaining the fixed relation of said plate to the supporting member and means for attaching the supporting member to a sewing machine, said attaching means compr1s1ng a slide element for the vertical comprising a hollow supporting member, a' plate oscillatlngly mounted on said member, a colled sprmg within the hollow supporting member, yieldingly maintaining the fixed relation of said plate to the supporting member, and means for attaching the supporting member to a sewing machine.

5. A motor support for a sewing machine, comprising a supporting member, means for attaching it to the sewing machine,- means oscillatingly mounted on said members for securing the motor thereto and means yield ingly maintaining the fixed relation' qli the oscillating means to the supporting member, said attaching means comprising a slide element for the vertical adjustment of the,

motor support.

"6. A motor support fora sewing machine, comprising a supporting member. a spring tensioned plate ren'iovably and osciliatingly mounted on said member and means for attaching the supporting member to the' sew ing machine, said means including a slide element for the "ertical adjustmentof the motor support.

Toronto, Canada, June 9th, 1919.

- JAMES ALEXANDER ,FLANAGAN,

Signed the presence of' CHAZ Rxonns, HENRY F. DALE.

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