US289687A - Geoege mabkot mobeis - Google Patents

Description

(NoModeL) G M. MORRIS. v '-LIFTING AND ROTATING PRESSE R FOOT DEVICE. No. 289,687.

Patented 1360.4, 1888.,

I m/e nfoi":

Witnesses:

' iinrrnn Sa'rns GEORGE MARION 'MORRIS, OF COHOES, ASSIGNOR OF ON TO VVILLIALWI I. BLEAKLEY, OF LANSINGBURG, NEW YORK.

LIFTING AND ROTATING P-RESSER-FOOT DEVICE.

SPECIFICATION forming part of Letters Patent No. 289,687, dated December 4, 1883.

Application filed May 2, 1883. (No model.)

I0 alt whom it may concern:

Be it known that I, GEORGE MARION M011 RIS, of the city of Oohoes, county of Albany, and State of New York, have invented a new and useful Improvement in Lifting and Rotating Presser-Foot Devicesfor SewingMachines, of which the following is a specification.

My invention relates to a mechanism whereby the resser-foot of a sewing-machine may be rotated after having been raised from off the tableplate, so as to swing around away from the needle horizontally on the guidebearings of the upwardly-extended shank, the object of my invention being to produce a promptly-acting means for moving the foot around after having been raised from off the fabric being sewed, for the more convenient adjustment of the latter, and to produce a a prompt means for returning the foot to its position on the fabric after the adjustment of the latter has been made.

My invention is more particularly adapted to that kind of foot-raising mechanism in which the foot and attached vertical shank, on which a spiral spring is placed, are raised by a lifting-cam constructed to have a horizontal offset journal-bearing on the needle-arm standard, and operated bya spoke-handle, and the engagement of said rotated cam with the undersurface ofan offset cap constructed upon and secured to the top of the foot-shank, the latter moving in vertical guide-slides formed in brackets on the standards, and against the recoil force of a spiral spring which surrounds it.

Accompanying this specification, and forming a part of it, is a sheet of drawings containing two figures illustrating my invention and the parts of a sewing-machine with which it connects,'the same designation of parts by letter-reference being used in both. Figure 1 shows in perspective the foot-lifting mechanism of a sewing-machine with my invention attached thereto, and the foot being illustrated as down upon the table-plate. Fig. 2 shows in perspective the same parts .as are shown at Fig. 1, with the foot as raised and swung around.

The parts of the mechanism shown in the foregoing illustrations are designated by letterreference and their function explained as follows:

The letter A indicates that part of a sewing-machine arm which connects with the footraising mechanism, so as to sustain the pendent needle-bar N and the foot-shank R, as well as the connected foot F.

The letters B and B designate two brackets attached to the arm A at its end, in which brackets are constructed vertical guideways O and O for the shank R to move in.

The letter S indicates a spiral spring surrounding the shank, and e a stop for the said spring.

D designates a vertical slot made in the upper bracket, B, and D a guide-bar on the shank R, constructed to move in said slot.

The letter C indicates a lifting-cam, having a horizontal offset shaft to journal in a shaft projected from the side of the stud J, the latter being extended upwardly from the bracket B,

on which shaft said lifting-cam is adapted to be rotated by the handle H.

The letter I designates a cap attached to the top of the shank R,the under edge of which cap projects horizontally over, so as to engage with the lifting-cam 0 (indicated at 6 when the cam is turned to raise the cap, connected shank, and foot against the recoil force of the spring S.

All of the parts thus described constitute the ordinary and well-knownparts of a sewingmachine, and they are only illustrated and their operation explained to better show the operation of the parts constituting my improvement and invention and their connection therewith.

To actuate the shank R and connected foot to be turned around after having been raised by the mechanism before described, so that the foot shall not be beneath the needle, there is constructed on the outer edge of the liftingcam O, and where nearest to the shank the peripheral groove a, and connected with the latter, at right angles to it, the transverse groove 2, the .said groove 1 being made parallel to the shaft on which the lifting-cam turns, and terminating in the face of the latter, as indicated at The letter a designates a pin downwardly projected from the under surface of the overhanging edge of the cap I, and this pin is adapted to run in said peripheral groove a when the lifting-cam C is in engaging contact with the under surface of the overhanging cap I, and the latter attached shank and foot are being raised thereby. So soon as the parts are thus raised sufiiciently to take the guidebar D from out of the slot DI, the pin it turns from the peripheral groove a into the transverse groove 1', and the cap, attached shank, and foot commence to turn and swing around the shank pivoted in the vertical bearings O and O in the brackets, the bottom of the guidebar D moving around on the top surface of the bracket B, as indicated at Fig. 2. To

. turn the raised cap, attached shank, and foot still farther around by means of the liftingcam O and handle H, notches o o are formed in the rim of the cap I, and pins mm projected from the perimeter of the lifting-cam O, which pins engage with said notches so as to gear into them, and thus continue'the turning of the cap, attached shank, and foot until the limit of revolution is reached, when the parts are held in place, as thus raised and turned, by the engagement of the bottom of the guide D on the top of the bracket B, and with the parts as shown at Fig. 2.

To restore the mechanism to a position with the foot upon the table, as appearing at Fig. 1, the foot is moved around by the finger or thumb until the guide D comes over the slot D, when the recoil force of the spring promptly forces the foot to its place upon the material being sewed beneath the needle.

Where it is desired in operating the sewingmachine to take off and put on a hemmer or binder, or where the material'to be sewed must be turned and changed in position, as is particularly the case with knit fabrics, my invention adds much to the facility and the rapidity with which work of this kind can be done.

Having thus described my invention, what I claim, and desire to secure by Letters Patent, 1s

1. In an attachment to a sewing-machine for raising the foot, the lifting-cam 0, formed with the peripheral groove a, terminating in a transverse groove, 6, in combination with the cap I, provided with the pin a, adapted to engage with said grooves, substantially as and for the purpose set forth.

2. The lifting-cam 0, formed with the peripheral groove (1., terminating in the transverse groove z, and provided with pins 111. m, in combination with the cap I, provided with the pin a and notches o 12, adapted to engage, respectively, with the grooves named and pins on the cam, substantially as and for the pur-' pose stated.

3. The lifting-cam 0, formed or provided with the peripheral groove a, terminating in a transverse groove, 1', and provided with pins m m, and a cap, I, having a pin, a, and notches v o, in combination with the foot-shank B, formed with the guide D adapted to slide in a groove, D, formed in the upper bracket of the head-piece, and to hold the parts in elevation, substantially as described.

Signed at the city of Troy, this 19th day of April, 1883, in the presence of two witnesses.

GEORGE MARION MORRIS.

Witnesses:

CHARLES S. BRINTNALL, F. A. Lnnns.

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