Improvements in or applicable to Cotton Gins.
Year: 1896

page_text: Date of Application, 28th Nov., 1896-Accepted, 6th Feb., 1897
COMPLETE SPECIFICATION.
Improvements in or applicable to Cotton Gins.
We KAVASJI KHARSHEDJI MEHTA of 3 Pedder Road, Bombay, Secretary of the
Central India Spinning, Weaving, and Manufacturing Company Limited, Bombay,
India, and DINSHAW PESTONJI MEHTA, of Grant Road, Bombay, India, Mechanical
Engineer, do hereby declare the nature of this invention and in what manner the
same is to be performed to be particularly described and ascertained in and by
the following statement and accompanying drawing :-
Our said invention relates to improvements in or applicable to cotton gins, particu-
larly those known as Macarthy cotton gins. It consists in the construction and
arrangement of parts for feeding and delivering the cotton to the bite or grip of the
leather roller and of the doctor knife so as to dispense with the elaborate mechanism
at present employed.
In order that our said invention may be more clearly understood we will describe
the same with reference to the accompanying drawing.
Fig. 1 is an end elevation of so much of a cotton gin as serves to illustrate our
said invention.
Fig. 2 is a longitudinal elevation of a shaft to be hereinafter described.
Fig. 3 is a section through a a of Fig. 2.
Fig. 4 is a section through bb of Fig. 2.
Fig. 5 is a section through cc of Fig. 2.
Fig. 6 is a section through d d of Fig. 2.
Fig. 7 is a section through ee of Fig. 2.
B is the leather roller and C the doctor knife, as in the machines now in use.
The shaft A which is formed or provided with blades or operating edges a extending
spirally or inclined to the axis throughout its length rotates in adjustable bearings
fixed to the frame E of the machine in a direction opposite to that of the leather
roller B and having a less peripheral velocity than the latter delivers or feeds the
cotton (which is thrown from the top) to the leather roller B. The function of
the blade a of the shaft A is not only to feed or deliver the cotton to the leather
roller but also to remove the seed from the bite of the leather roller and doctor
knife and to cause it to fall through the grid D whence it drops into a receptacle
placed below. The grid D may be adjustable in its relation to the revolving
shaft A by any convenient means as will be well understood without further
description.
Having now particularly described and ascertained the nature of our said inven-
tion and in what manner the same is to be performed we declare that what we
claim is.-
1. In a cotton gin, a revolving shaft with blades or operating edges arranged
spirally or inclined to its axis for feeding or delivering the cotton to the leather
roller substantially as set forth and shown.
2. In a cotton gin the combination of the grid D and the shaft A having
inclined or spiral operating edges such as described substantially as set forth and
shown.
3. In a cotton gin the combination and arrangement of a revolving shaft such as

page_text: described a circular grid, leather roller and a doctor knife, substantially as and for
the purpose set forth and shown with reference to the accompanying drawing.
Dated this 25th day of November 1896.
E. T. WHITELOW, A.M. Inst. C.E.,
70 Deansgate, Manchester, Agent for the Applicants.