US27811A

US27811A - Joseph kbech

Info

Publication number: US27811A
Authority: US
Publication date: 1860-04-10
Anticipated expiration: 1877-04-10

Description

UNITED sTATEs PATENT oEEioE.

JOSEPH KEECH, 0F VVATERIJOO, NEW YGRK.

WASHIBOARD.

Specification of Letters Patent No. 27,811, dated April 10, 1860.

To all whom it may concern:

Be it known that I, JOSEPH 'KEECH, of Waterloo, in the county of Seneca and State of New York, have invented a new and Improved Mode of Constructing Washboards; and I do hereby declare that the following is a full and exact description thereof, reference being had to the accompanying drawings.

The nature o my invention consists in the peculiar form given to the corrugation or crimp of the rubbing surface or zinc plate, they being formed into an obtuse angular shape longitudinally, containing three angular points in the length of the crimp which extends from side to side of the frame crosswise. The crimp being centrally advanced toward the upper end of the board, and laterally receding or inclining toward the lower end, the two receding or downward angles beinL at a point equidistant from the center ofi the plateto the stile or side of the board, the location of which is calculated to be the most direct spot whereA the hands would naturally move downward over the surface when in the act of washing. The advantages claimed in this mode of crimping the rubbing surface is, that when the clothes are moved downward over the surface for the purpose of receiving the vibratory action necessary in removing the filth and stains from them, that there is not only a greater amount of friction produced with the same degree of labor but there is also in addition an inward or side pressure having a tendency to press or contract the portion of clothes confined beneath the hands as they come in contact with the lateral portion of the resisting side of the crimp first, and bearing centrally until they are passed over the elevated part of the crimp, at which time the clothes are at liberty to spring back and take their natural position by tile contraction of the fabric, thus causing a change of position of the clothes at the passage of each crimp, consequently a more rapid purifying of the article operated upon. This is the practical effect of the two outward angles over which the hands move, the center angle produces a similar effect, but produces an opposite movement of the clothes as the central part of the crimp comes in contact first with the clothes having an outward resistance until the article is passed over the elevated part of the crimp, then the ,clothes take their natural position as in the outside angles.

The accompanying drawing is a face view of a section in full width, showing the upper end of the frame and a part of the zinc plate.

To enable others skilled in the art to construct boards embracing my improvement, I would say that they can be made in either of the ordinary ways of making boards, either with the full thick back or with the thin back with round cross ties the general construction being the same.

What I claim as my invention, and desire to secure by Letters Patent, is-

The obtuse angular shape given t0 the crimp or corrugations longitudinally constructed, arranged, and operating substantially as, and for the purposes set forth.

JOSEPH KEECH. Witnesses:

IVM. KNOX, HORACE FIELD GUSTIN.