Improvements in Hat-pressing Machines.
Year: 1889

page_text: Date of Application, 27th Aug., 1889
Complete Specification Left, 27th May, 1890-Accepted, 28th June, 1890
PROVISIONAL SPECIFICATION.
Improvements in Hat-pressing Machines.
JOHN HENRY GODMAN C.E. West View Road St. Albans Herts. do hereby declare
the nature of this invention to be as follows:-
An improved method of obtaining water pressure in Hat Pressing Machines,
such machines being in general use,' the method now used being, to fill the press
with water from water supply pipe and after closing communication with same to
obtain the final pressure by means of an ordinary force pump, the water upon being
released from pressure being allowed to run into a tank from which the force pump
obtains its supply the surplus running to waste.
My improvement consists in using in the place of the force pump a displacement
cylinder containing a piston actuated by a lever of such form as to obtain an increasing
leverage and a detent to hold the lever in any desired position, the displacement
cylinder being in direct communication with the press the water being forced into the
press and returned back again to the displacement cylinder without loss.
Dated this 4th day of October 1889.
JOHN HENRY GODMAN, C.E.,
Applicant.
COMPLETE SPECIFICATION.
Improvements in Hat-pressing Machines.
JOHN HENRY GODMAN C.E. West View Road St. Albans, Herts. 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 :-
1. A method of obtaining & releasing the pressure of water required in the working
of Hat Pressing Machines such machines being in general use, the method now generally
in use to obtain the required pressure is either by direct supply from water mains
or from accumulators or more generally by first filling the press from the water
mains or cistern & getting the final pressure with force pump attached to the press,
the pressure is released by a valve which allows the water to run from the press
into a cistern from which the force pump is supplied the surplus water going to
waste.
2. My method consists substantially in replacing the force pump or other means
of obtaining pressure by a displacement cylinder of such capacity as to fill the press
& obtain the required pressure by one stroke of its ram & release the pressure by the
reverse stroke the water alternately filling either the press or displacement cylinder,
the ram being actuated by a combination of levers hereinafter described, the force to
actuate the same being as usual by manual labour.
3. A displacement cylinder, B ram, C pipe communicating with press, D water
supply cock, E main lever, F toggle lever, J rack, K detent, L thumb lever to
release detent, M relief cock, N pressure guage, O balance weight, P part of press,
Qflexible connection to press.
4. The lever E jointed to fixed support at R with fulcrum at S for toggle lever F
in the manner shewn, to obtain an increasing leverage over the ram as the ram
descends against increasing resistance.
5. Preparation. The press with my improvement fixed but empty of water & being
ready for use with pan, felt, hat, etc., in position is closed & locked, the air escape

page_text: cocks on press are to be opened, the lever placed in lowest position, the supply
cock D is to be now opened till water appears at the air cocks, which is to be now
closed, the lever E to be now raised after releasing detent K with thumb lever L to
highest position the supply cock is now to be shut, the lever is now drawn down till
the required pressure is obtained, should the lever E require undue force to do so the
cock D is partially opened to allow a small amount of water to return to the supply,
or, the cock M may be opened to waste, the adjustment having been so made as to
obtain the required pressure with ease, the lever E is now raised to highest position
when the pressure will be relieved & a partial vacuum formed, the press may be now
unlocked & is ready for use.
6. Opperation. The hat etc. being in place in the usual manner the press is closed &
locked the lever E is now brought down till the guage N shews the required pressure
& is there held by the detent till released, no further opperating of valves or cocks
being required till leakage or alteration of volume in press requires addition or reduction
of water.
Having now particularly described & ascertained the nature of my said Inven-
tion, & in what manner the same is to be performed, I declare what I claim is
1. Great economy of water.
2. Rapidity and ease of working.
3. Simplicity and absence of pump valves.
4. Obtaining, retaining, releasing water pressure, by using same water continuosly,
without opening & closing cocks for each opperation.
Dated this 22nd day of May 1890.
JOHN HENRY GODMAN, C.E.