US158436A

US158436A - Improvement in sewing-machine casters

Info

Publication number: US158436A
Authority: US
Publication date: 1875-01-05
Anticipated expiration: 1892-01-05

Description

. H. PLANK.

Sewi ng-Machine Casters.

Patnted Jan. 5,1875.

WITNESSES ATTORNEYS.

m: cnmc cgwprb-Llrujaa-M PARK PLACEINN l l r UNITED STATES PATENT OFFICE,

JOHN H. PLANK, OF BLOOMFIELD, IOWA.

l MPROVEMENT IN SEWING-MACHINE CASTERS.

Specification forming part of Letters Patent N 0. 158,436, dated January 5, 1875; application filed May 23, 1874.

(Men B.

To all whom it may concern:

Be it known that I, JOHN H. PLANK, of Bloomfield, in the county of Davis and State of Iowa, have invented a new and Improved Sewing-Machine Caster, of which the following is a specification:

My invention consists in combining a lever with the socketplates which receive the feet of the sewing-machine legs, said lever being piy'oted and otherwise so arranged that by a movement thereof the casters of one end of the socket may be lifted off the floor and the support of the machine transferred to the legs, to hold the machine firmlyagainst shifting about while being used.

Figure l is a side elevation ot' one of myimproved caster contrivances. Fig. 2 is a plan view.

Similar letters of reference indicate corresponding parts.

A represents a couple of sockets for the feet of one end of a sewing-machine formed in plate B, mounted on two casters, 0, and having a tongue, D. These tongues of the two plates for each end of the machine are fitted to be clamped together by a bolt, E, and one of them is slotted, so that the plates can be adjusted toward and from each other to adapt the sockets to the feet of any sewing-machine. Near the casters, at one end of these combined plates, legs H are pivoted to one of the tongues of the socket-plates, and have a hand-lever, I, connected to them to raise the plates and take the support of the machine on the legs to hold the machine steady for working it. These legs swing against the shoulders at K, and are thus held so as to prevent the plates from talling, so that the casters will touch the floor when the legs are turned in that direction, but in the other direction they are free to swing up enough to let the casters drop onto the floor. Two sets of these caster socket-plates are used, one for each end of the machine, the two sets being entirely independent from each other, so that no adjustment of any contrivance is required to apply them to machines, thus facilitating the application; but in the other direction they have to be adjusted by the tongues D and bolt E.

Having thus described my invention, I claim as new and desire to secure by Letters Patent- The legs H and a lever, I, pivoted to one of the tongues D of the socket-plates A, and arranged in relation to the shoulders K as described, for supporting and steadying the machine, substantially as specified.

JOHN H. PLANK. Witnesses:

H. G. TRAVERSE, F. W. EIOHELBERGER.