Improvements in and connected with Fluid Pressure Presses, applicable also for Use for Transmitting Motion.
Year: 1899

page_text: Date of Application, 10th July 1800
40th
Ann 4000 Accented
10th
4000
Complete Specification Left, 18th Apr., 1000 Accepted, 10th May,
1000
Improvements in and connected with Fluid Pressure Presses,
applicable also for Use for Transmitting Motion.
I, SALOMON FRANK, of 4, Blücherplatz, Frankfort-on-Main, in the German
Empire, Mechanical Engineer, do hereby declare the nature of this invention
to be as follows: :-
My invention relates to pressure applying devices applicable for example to
presses for copying, stamping and the like, or for exerting pressure for other
purposes, such as for transmitting pressure for motive power. It can be worked
by any description of fluid pressure whether liquid or gaseous.
I will describe my invention as applied to a copying press. The plates of
the press are rigidly secured to each other and upon the bottom plate is placed
a receptacle made of flexible sheet metal having the edges air tightly con-
nected with each other by rivets, or otherwise, and having communicating with
the interior an attachment, or nozzle, passing through the bottom plate. Upon
the said receptacle a movable plate is placed. When air, gas, or liquid, under
pressure is introduced into the receptacle by a tube connected to the attachment
or nozzle the receptacle expands so that a copying book, or other object, placed
between the receptacle (or the plate placed thereon) and the top plate is sub-
jected to a strong pressure.
I am aware that it has been proposed to use bags of india rubber, or leather,
but such bags cause the pressure to be exerted very irregularly and they are
very liable to bulge out laterally as they are worked, they are moreover liable
to burst when strained to any considerable extent. These defects are overcome
according to my invention.
Owing to the elasticity and expansibility of a receptacle or receptacles made
according to my invention the device is not only applicable as a press in the
ordinary sense of the word but it will also serve the purpose of transmitting
motion.
For this purpose the upper closed part of the receptacle or receptacles is
connected with a crank or the like by a connecting rod and it is set in motion
by causing compressed air, gas, or liquid, to enter the receptacle or receptacles
and to be discharged therefrom alternately so that the device then serves as a
cylinderless piston.
A
1000
JOHNSONS & WILLCOX,
47, Lincoln's Inn Fields, London, W.C., Agents.

page_text: Improvements in and connected with Fluid Pressure Presses,
applicable also for Use for Transmitting Motion.
I, SALOMON FRANK, of 4, Blücherplatz, Frankfort on Main, in the German
Empire, 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:-
My invention relates to pressure applying devices applicable for example to
presses for copying stamping and the like, or for exerting pressure for other
purposes such as for transmitting motion. It can be worked by any description
of fluid pressure whether liquid or gaseous.
The invention is represented in the accompanying drawing in which Figure 1
is a cross section of the device as applied to a copying press. Figure shews
a single arrangement of the device and Figure 3 shews a multiple arrangement
each figure shewing the expanded and contracted positions, a and b are the
plates of the press rigidly secured to each other by bolts. Upon the bottom
plate a receptacle c is placed the said receptacle being made of flexible sheet
inetal plates having their edges air tightly connected with each other by rivets
or otherwise, and having communicating with the interior an attachment or
nozzle passing through the plate b. Upon the receptacle e a moveable plate d
is placed. When air, gas, or liquid under pressure is introduced into the
receptacle c by a tube connected to the attachment or nozzle f, the receptacle
expands so that a copying book or other object placed between the receptacle c
(or the plate d placed thereon) and the plate a is subjected to a strong pressure.
I am aware that it has been proposed to use bags of india rubber, or leather
but such bags cause the pressure to be exerted very irregularly and they are
very liable to bulge out laterally as they are worked, they are moreover liable
to burst when strained to any considerable extent. These defects are overcome
according to my invention.
Owing to the elasticity and expansibility of a receptacle or receptacles made
according to my invention the device is not only applicable as a press in the
ordinary sense of the word but it will also serve the purpose of transmitting
motion.
For this purpose the upper closed part of the receptacle (or receptacles) is
connected with a crank or the like by a connecting rod and it is set in motion
by causing compressed air, gas, or liquid, to enter the receptacle or receptacles
and to be discharged therefrom alternately so that the device then serves as a
cylinderless piston.
Having now particularly described and ascertained the nature of the said
invention and in what manner the same is to be performed, I declare that what
I claim is-
1. A pressure exerting device consisting of, or provided with, flexible sheet
metal plates, rivetted or connected together at their edges and forming a hollow
receptacle or hollow receptacles provided with an inlet nozzle or connection and
capable of being expanded by the introduction of liquid, air, or gas under
pressure substantially as herein before described.
2. A device for applying pressure, consisting of or provided with flexible
sheet metal plates rivetted or connected together at their edges and provided with

page_text: means for admitting and discharging air, gas or liquid under pressure at intervals
and a connection with the flexible plates of a crank or the like for transmitting
motion substantially as herein before described.
فيديو
+
300a
JOHNSONS & WILLCOX,
47, Lincoln's Inn Fields, London, W.C., Agents.