US693419A - Folding sewing-machine table. - Google Patents

Description

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HINE TABLE.

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(Appliclton 1ed Apr. 27, 1901.)

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A A. MOKBLEY. FOLDINGv SEWING'MAGHINE TABLE.

(Appumion med Apr. 27, i901.)

(No Mqdel.)

- UNIT-ED" STATES 4PATENT OFFICE.

ALBERT MORLEY, OF CHICAGOfILLINOIS, ASSIGNCR T O STEPHEN M. SUTHERLAND, TRUSTEE, OF CHICAGO, ILLINOIS.

SPECIFICATION forming part of Letters 'Patent No. 693,419, dated February 18, 1902. application flied man 27, 1901?. 4senti 110.67335. oro modem To all whom, it may con/cera.- p

Be it known that I, ALBERT MORLEY, a citizen of the United States, residing at Chicago,

in the county of Cook and State o f Illinois,t have invented a certain new and useful lm -A provement in Folding Sewing-Machine Ta bles, of which the following is a specification. y

My invention relates to folding stands for sewing-machines, and hasA for lits object, among other things, to provide means forl locking the movable parts of said folding stand in either folded or open position. It isf illustrated in the accompanying drawings,

wherein- Figure l is a side elevation, with partsl broken away, of my folding sewing-machine lstand with the head elevated. Fig. 2 is a somewhat similar view with the head vdepressed. Fig. Sis a detail cross-section of a part of the machine, taken on the line 3 3 of Fig. 1. Fig. 4 is a rear view ofthe machine. Fig. 5 is adetail of the folding front leaf stop.

Like parts are indicated by the vsame letters throughout the several figures.

A considerable part of what I have shown is shown simply to illustrate the operation of thelocking device, and I shall not, therefore, describe the structure very much in detail, eXcept so far as it relates to the particular thing which I wish to claim.

4A A are the xed or ordinary parts of thel sewing-machine stand, and on them is the vertically-movable sewing-machine head B,

which is supported on the plate B', itself supported above the .drip-pan B2 on the brackets C C, which are arranged to slide onl the vertical guide-rods D D. At the back of the machine in Fig. 4: is shown the end of a short shaft E, to which is secured the arm F, in turn pivoted to the 'arm G, which is in turn lpivoted to the folding top'H. Evidently when the folding top is turned upon its hinge J the operation ofthese arms is to turn the shaft E, upon which is mounted the wheel K, to which are secured the chains or straps L M, and thus by the rotation of the shaft E and the wheel K theseohains will be let out or wound up, so as to raise or lower the sewing-machine head andits plate B'. Thus it will be seen that when the leaf H is folded K will be rotated inthe direction indicated bythe arrow in Fig. l, the chains will be slacked, and the head will be lowered into the positionindicated iny Fig. 2. The pulley VN is intended to reverse the direction of the chain L.

O isa pulley on the machine frame or stand, and P a chain one end of which is attached to the wheel K and the otherend to the bracket C and which passes over the pulley O, as indicated. This'chain is intended to cause the bracket to be positively pulled downwardly by this action. v

On the wheel K are the lugs It and S, shaped as shown.1 Theyproject inwardly from the inner rim of the wheel and have each an inclined inner surface, so as to pre-- sent a kind of socket triangular in cross-section. T is aiinger secured to the movable portion, in this instance projecting from the margin of the drip-panfB2. i It is in the line of these two lugs, which, it will be noticed, face in opposite directions. As the wheel yrotates in the direction indicated by the arrowY position against any movement'unless that movementis caused by oraccompanied by the movement of the foldingleaf H or the wheel K. On the otherhand,the moment such motion of thc foldingleaf H begins the look, in whichever position it has been made, is re-l leased and theparts are free to move up or down, as vthe case may be.

Thus it will be' Yseen, that the relation of these partsis such Vthat the movable portion is looked in either The forwardly-depending.,r leaf which protects the mechanism when the head is down v is composedof the two leaf portions U and V. The part U is hinged to the Xed part of the frame, and the part V is hinged to the part roo U. The part V is hinged by mechanism, which I do not here describe, to the movable part, so that the two parts of the front leaf will fold up under the fixed table, as indicated in Fig. 2, when the head of the machine is up in position for use. At one side of the machine and protecting the driving mechanism is the fixed board W. To prevent the sectional front leaf U V from moving too far forward when the head is down, I attach to the lower part of the section V the projecting stop V', which engages the inner side of the fixed board WV. The connection between the section V and the movable part of the machine mnst be loose or loose-jointed, and this is effected by means of a pin X on the bracket C traveling in a slot Y in a projection Z on the section V.

I do not wish to be limited to the precise construction of the several parts illustrated.

I claiml. In a folding sewing-machine cabinet, the combination ot a movable head with a folding part, connections between the two whereby the motion of the folding part causes the head to rise or lower as the case may be, and an additional or separate locking device which automatically prevents the head from moving except when such folding part is in motion, and which is connected with the folding part so that the first motion ,of the latter positively disengages the interlocking parts.

2. In a folding sewing-machine cabinet the combination of a movable head with a folding part, and connections between the two whereby, when the folding part is moved, the head is moved, such connections containing a rotatable part, and a locking device associated with such rotatable part and adapted to prevent the head from moving except when the folding part is in motion.

3. In a folding sewing-machine cabinet, the combination of a movable head with a folding part, and connections between the two whereby, when the folding part is moved, the head is moved, such connections containing a rotatable part, and lugs on such rotatable part projecting in opposite directions and formn g each a V-shaped socket, and a pin associated with the head, so that when the folding part is at the limit of its motion in either direction such pin is in the proper socket, and

the head is locked from motion except when the folding part is in motion.

4E. In a folding sewing-machine cabinet, the combination of a movable sewing-machine head with a wheel and chains which connect the sewing-machine head to the wheel, a folding part and connections therefrom to the wheel, so that the latter is rotated when the folding part is moved, a pin associated with the head, lugs making V-shaped slots on the wheel, the pin and the lugs rotated so that when the folding part is atthe limit of its motion in either direction, the pin and lug engage so as to lock the head in position.

5. In a folding sewing-machine cabinet, the combination of a forward-swinging leaf composed of one xed and two hinged and folding sections with a movable head, a loose connection between the movable head and the lower folding section of the leaf, and a stop on the lower part of the leaf to engage a fixed part of the sewing-machine frame.

ALBERT MORLEY.

Witnesses:

IIOMER L. KRAFT, FANNY B. FAY.

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