Patent Model - Improved Washing Machine
Maker and role
Charles De Knight, Patentee
Aug 09 1870
See full details
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)
Currently on display?
Be the first to comment on this object record.