Patent Model - Improved Washing Machine

Maker and role
Charles De Knight, Patentee
Production date
Aug 09 1870
See full details

Object detail

Wood, brass
14 1/2 x 10 x 10" (36.8 x 25.4 x 25.4cm)
De Knight's patent "consists in an arrangement of a rubbing-disk within a wash-tub, the lower surface of said disk, and the upper surface of the bottom of the tub, being provided with a series of curved rubbing strips, said disk being pivoted to a hollow vertical shaft, in which is placed an adjustable spiral spring, which imparts a downward pressure to the rubbing disk, which has a rotating reciprocating motion given to it through the medium of said hollow vertical shaft, driven by suitable driving gear." (Patent Number 106,137)
Object number
Currently on display?


Public comments

Be the first to comment on this object record.

Google reCaptchaThis site is protected by reCAPTCHA and the Google Privacy Policy and Terms of Service apply.