Improvements in Hydraulic Hat Pressing Machines.
Year: 1892

page_text: Date of Application, 6th Feb., 1892
Complete Specification Left, 20th Sept., 1892-Accepted, 29th Oct., 1892
PROVISIONAL SPECIFICATION.
Improvements in Hydraulic Hat Pressing Machines.
ALBERT TURNER Prospect House Denton near Manchester Engineer & Hatters'
Machinist do hereby declare the nature of this invention to be as follows :—
Improvements in hydraulic hat pressing machines whereby the work is much
more effectively done and at a great saving of indiarubber bags & rings.
My invention consists in having a cover and ring arched, convex or concave at
the joint where the indiarubber bag or ring is supported or fastened, to suit the
arch, convex or concave, of the brin of the dish or mould coming in proximity to
it, so that the indiarubber bag is not unduly stretched or strained.
Dated this Fourth day of February 1892.
ALBERT TURNER.
COMPLETE SPECIFICATION.
Improvements in Hydraulic Hat Pressing Machines.
I, ALBERT TURNER of Prospect House, Denton, near Manchester, Engineer
and Hatters' Machinist, do hereby declare the nature of my said invention and in
what manner the same is to be performed to be particularly described and
ascertained in and by the following statement :-
Improvements in hydraulic hat pressing machines whereby the work of hat
pressing is much more effectually done and at a great saving of indiarubber bags
and rings.
My invention consists in having a cover and ring arched convex or concave at
the joint where the india-rubber bag or ring is supported or fastened to suit the
arch convex or concave of the rim of the dish or mould coming in proximity to
it so that the india-rubber bag is not unduly stretched or strained.
Hitherto it has been the practice to form the ring and cover of equal height or
depth all round and consequently a space has been left between the brim of the
mould and the top edges of the ring to be filled up by the indiarubber press bag
with serious wear and tear on the said bag.
On the accompanying drawing Fig. 1 is a side elevation of a portion of a
hydraulic hat pressing machine with my improvements shewn applied thereto, the
ring being shewn separate from the cover and resting upon the table to make my
improvements clear.
A is the ring which clamps and secures the edges of the rubber bag B to the
cover C, which ring, instead of being of equal depth or height all round as
heretofore (as shewn in Fig. 2 and indicated by the dotted line in Fig. 1), is shaped
or formed to correspond with the arch or curved formation of the brim of the
mould D as illustrated.
The cover C is shaped to correspond with the curvature of the ring as illustrated,
so that the edges of the bag on being clamped between the ring and cover cause
the bag to come completely against the mould brim on bringing the cover down
upon the mould instead of the bag only partially coming in contact with the mould
as heretofore and leaving a crevice or space at A¹ (see Fig. 2) to be filled up by
the bag under the action of the water, necessarily delaying the operation of
pressing.
The bag has consequently been subjected to excessive wear at the parts marked D'
so that by causing the ring and cover to follow the contour of the mould the wear

page_text: of said parts is reduced to a minimum. The rubber protector which lies between
the ring and the mould brim is likewise subjected to less wear than heretofore.
Having thus particularly described and ascertained the nature of my said
invention and in what manner the same is to be performed I declare that what
I claim is :-
1st. In hydraulic hat pressing machines the arched or curved formation of cover
and ring substantially as and for the purpose hereinbefore described and illustrated
on the accompanying drawing.
Dated this 19th day of Sentember 1802
JOHN G. WILSON,
Agent for the Applicant.