US246777A - Washing-machine - Google Patents

Description

A. BUFFER.

W AAAAAAAAAAAA E. No. 246,777. Patented Sept. 6,1881.

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UNrTED STATES PATENT @rarest ABRAHAM HUFFER, OF HAGERSTOWN, MARYLAND.

WASHING-MACHINE.

SPECIFICATION formingpart of Letters Patent No. 246,777', dated September 6, 1881.

(Model.)

To all whom it may concern Be it known that I, ABRAHAM BUFFER, of Hagerstown, inthe county ot' Washington and State of Maryland, haveinvented certain new and useful Improvements in Wasl'iing-Ma chines; and I do hereby declare that the following is a full, clear, and exact descriptionof the invention, which will enable others skilled in the art to which it pertains to make and use the same, reference being had to tbcaccompanying drawings, and to the letters of reference marked thereon, which form a partot' this speciiication.

This invention relates to au improvement in washing-machines for which I have received Letters Patent No. 18,642, dated November 17, 1857, in which a lnted cylinder is used in combination with a shallow concave i'ormed by rollers and two ribbed feed-boards and adjusted by four spiral springs.

Now, my lateimprovement eonsistsin forming a concave in sections, with an adjustable joint in the center, with pins projectingl into grooves, so as to move up and down in the center and slide on bearings at the ends of the concave. Underneath the concave is a springbar with two spiral springs, and projections workingin grooves for adjusting` the concave. Then in operation the clothes are passed between the cylinder and concave, pressing the lower rollers down from thecylinder and bringing the upper rollers nearer the cylinder by the concave sliding from the top toward the center, guided by the pinsprojecting into the grooves, producing a downward and clamping motion. l

Figure l shows a sectional view, with springbar A and springs B B for supporting the center ofthe concave, with joint at pinC working in grooves D D. Fig. 2 isa longitudinal cross-section through the middle of the machine, showing cylinder E and concave F, with bearings at G G., resting on blocks lH H, and adjustablejoint I, with center pin working in groove D. A is the spring-supported-bar,l with projections working-in groove D, so as to keep the springs B B in their place. Fig. 3 is a side view oi' the adjustable box K, for raising and lowering the cylinder, as desired for small or large clothing.

With my improvement a small machine can be constructed without the outside water-box, so as to be placed in a common wash-tub when desired.

Having described my invention, what I claim In a washing-machine, the combination, with the cylinder E and spring-supported bar A, of the concave F, composed ot' ribbed feed boards and rollers, having a central joint, I, and provided with end be`arings,GG, adapted to slide on blocks H H, whereby the upper rollers ofV

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