US2032185A - Transmission system for a pressureoperated member such as a hydraulic press - Google Patents

Transmission system for a pressureoperated member such as a hydraulic press Download PDF

Info

Publication number
US2032185A
US2032185A US16107A US1610735A US2032185A US 2032185 A US2032185 A US 2032185A US 16107 A US16107 A US 16107A US 1610735 A US1610735 A US 1610735A US 2032185 A US2032185 A US 2032185A
Authority
US
United States
Prior art keywords
pressure
transmission
intensifier
cylinder
piston
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
US16107A
Inventor
Sciaky David
Original Assignee
Sciaky David
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority to DE2032185X priority Critical
Application filed by Sciaky David filed Critical Sciaky David
Application granted granted Critical
Publication of US2032185A publication Critical patent/US2032185A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B30PRESSES
    • B30BPRESSES IN GENERAL
    • B30B15/00Details of, or accessories for, presses; Auxiliary measures in connection with pressing
    • B30B15/16Control arrangements for fluid-driven presses
    • B30B15/165Control arrangements for fluid-driven presses for pneumatically-hydraulically driven presses
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B30PRESSES
    • B30BPRESSES IN GENERAL
    • B30B15/00Details of, or accessories for, presses; Auxiliary measures in connection with pressing
    • B30B15/16Control arrangements for fluid-driven presses
    • B30B15/161Control arrangements for fluid-driven presses controlling the ram speed and ram pressure, e.g. fast approach speed at low pressure, low pressing speed at high pressure

Description

Feb. 25, 1936. D SQAKY 2,032,185

TRANSMISSION SYSTEM FOR A PRESSURE OPERATED MEMBER SUCH AS A HYDRAULIC PRESS Filed April 12, 1935 2 Sheets-Sheet 1 DA ID SCJA Y INVEN K.

Feb. 25, 1936. D. SCIAKY 2,032,185

TRANSMISSION SYSTEM FOR A PRESSURE OPERATED MEMBER SUCH AS A HYDRAULIC PRESS Filed April 12, 1955 2 Sheets-Sheet 2 D D SCIAKY Hp Y.

Patented Feb. 25, 1936.

PATENT OFFICE TRANSMISSION SYSTEM FOR A PRESSURE- OPERATED MEMBER SUCH DRAULIC PRESS ASAHY- David Sciaky, Paris, France Application April 12, 1935, Serial No. 16,107 In Germany April 20, 1934 1 Claim. (01. (so-54.5)

The object of the present invention is to utilize fluid under pressure in a scientificfmanner by economizing the amount of motive fluid used.

' The invention is further intended to provide a hydraulic intensifier that is essentially simple and comprises masses of small inertia in motion.

A further object of the invention is to render it possible to put the apparatus out of action at the conclusion of each operation so that these operations shall follow each other periodically or at definite long or short intervals.

Still another object of the invention is to eliminate the necessity for powerful compressors, systerms of large diameter piping and large hand relief-valves as well as valves or cocks.

Lastly the invention aims at considerably reducing the space required for the installation.

Installations by which the foregoing objects are realized possess the features set forth in the specificationbelowand in the claim annexed to the said specification.

The preferred constructional forms of the invention are shown, by way of example, in the accompanying drawings wherein:

Fig. 1 is a diagrammatic view of a. hydraulic transmission system according to one constructional form of the invention.

Fig. 2 is a diagrammatic view of a second form of practical construction, oi a hydraulic transmission system.

The system illustrated in Fig. 1 includes two hydraulic intensiflers, one 5l3 operating at low pressure and the other 1-46 at high pressure,

these being intended to operate the machine 50, which may be a hydraulic press, a welding-machine, or the like. Compressed air, representing the motive power, is supplied from source A and is controlled by the hand-operated valves 2 and 3, lo-

cated in: the feed pipes of the low and high pressure intensifiers respectively.

Normally, the pistons l0 and plunger H of the two intensiflers are at their highest positions. When the 4-way cock 4 is adjusted to the position shown in Fig. 1, the compressed air arriving by the pipe I enters the upper chamber of the cy1inder 6 and. acts on the piston ill to free down the plunger or ram I I, which has a large working surface, and which compresses the fluid in the lower chamber which then passes from the space I3 through pipe 35 and is forced into the chamber l6 and then into the operating cylinder IQ of a machine. The ram 50 of the machine is thus forced down to press or operate on the work-piece in the machine.

It, at this moment, the 4-way cock 5 is turned so as to bring it into the position indicated in dotted lines, the compressed air passes through the aperture 24 of the cock 5 and enters the-upper chamber oi the chamber 1 to act on piston II and the plunger I5 is forced down and during 5 the first part of its movement it breaks the communication between the enclosed spaces l3 and i6. Thereafter, the plunger l5, which is of small diameter relatively to. its pneumatic piston ll, produces in the cylinder IS the high pressure 10 desired.

If the two 4-way cocks are turned to their other positions the pistons l0 and M can return to their normal raised positions owing to the establishment of communication between the upper cham- 15 bers of the cylinders 6 and I and the free air and owing to the admission of compressed air into the spaces beneath these pistons Hi and H respectively, through the inlets 21 and 25.

In order to render the operation 0! the high- 2 pressure intensifier automatic and positive, the system of Fig, 1 is supplemented by an automatic control device, which is in turn controlled by the low-pressure intensifier and controls the highpressure one. This device takes the form of a 25 hydraulically controlled valve with a hydraulic ram 20, the cylinder of which is connected with the pipe 35 connecting the lower cylinders I3 and I6 of the lowand high-pressure intensifiers. The plunger 20 is coupled to the handle 22 of the 30 cock 5 and is normally pulled into its cylinder by coil springs II, the tension of which may be regulated by means of the screws 5|.

This device functions as the result of the excess pressure set up in the fluid, when acted on 35 by the plunger l I, at the moment when the movable ram 50 of the receiver 19 commences to com press the work. At this moment the piston 20 is forced outwards from its cylinder and operates the handle 22 of the cock 5 and, in consequence, 40 causes the high-pressure intensifier to function. In this way the working pressure is automatically obtained at whatever position the ram 50 may be in and independently of the thickness of the work-pieces to beoperated on.

The installations comprise also a liquid source 8 that supplies liquid, through the pipe-system 9, to the cylinders I 3 and ii of the low-and-high pressure intensiflers. This supply of liquid is e1'-- 50 Iected by a port l2, provided for the purpose in the plunger II and coinciding with the inlet opening of the pipe 9 when the said plunger II is at the upper extremity of its travel, that is to say, in normal position. 55

7 pressure intensifier consists essentially of two valves 28 and 29 carried by a movable rod 30;

this rod Miami the valves 28, 29 constitute a distributor that is actuated by a membrane or diaphragm fitted in a chamber 32. At its other end, the rod 36 is acted on by a spiral compression spring 33,

The compressed-air is supplied to inlet 44 through a stop valve 3, while the outlet 43 communicates with the space above the piston 14 of the pneumatic cylinder 1 of the high-pressure intensifier; the space below the piston in this pneumatic cylinder being supplied from the cock 4 of the low-pressure intensifier through the conduit 21. The distributor or hydraulically controlled valve has also an outlet at 41 communicating with the outer air. The manner in which this system functions is as follows:

As soon as the movable ram 50 of the receiver l9 commences to compress the, work, the increased pressure in the liquid caused by the plunger I I causes a deformation of the diaphragm 3|, which, through the action of the rod closes the valve 28 and opens valve 29. The compressed air, arriving through inlet M, can pass through pipe and enter into the upper space of the cylinder 1'.

When the cock 4 is restoredto its normal position, the upper space above the piston of the cylinder 6 is put incommunication with the free air and thelowerspaces (below the pistons) of the cylinders 6 and 'I are subjected to pressure throughthe pipes 21. The piston ID then returns to its normal raised position and the release of the excess pressure which previously existed in pipe causes the restoration ofthe diaphragm 3| to its normal position. The spring33 then closes the valve 29 while also opening the valve 28 and putting the upper space of the cylinder 1 i communication with the outer air, thus enthe tension of which can be adjusted.

abling the piston i toflresume its inoperative position. g

The motive fluid employed in these installations may be compressed air or'any other suitable agent. For purposes of transmission, any fiuidappropriate for the end in view may also be made use of.

The invention may be applied to operate any device for the utilization of pressure, such as, for instance, a hydraulic press, locking-devices for butt-weldingmachines, electrodes of spot-welding .machines and also any other machines in which one or more workpieces require to be fixed so as to be compressed or otherwise operated on.

What I claim asmy invention and desire to secure by Letters Patent is:

In a transmission system for pressure-utilizing means such as hydraulic presses; a source (A) of fluid under pressure; a low-pressure hydraulic intensifier (6, l3) supplied from the source (A); a high-pressure hydraulic intensifier (1,1,6) supplied from the source (A), comprising a cylinder (i6) and a movable element such as a piston and ram (l4, l5) reciprocating ,within the said cylinder (i6); means of intercommunication (35) between the low-pressure intensifier (6, I3) and the high-pressure intensifier (1, I 6 the said means discharging into the cylinder of the high-pressureintensifier and being controlled by the said movable element, such as tlie'piston (14,15 of the said high-pressure intensifier; an automatic pressure responsive control device (2!, 2|) controlled by the pressure of the low-pressure intensifier (6, i3) and, \in turn, controlling the operation of the movable element or the highpressure intensifier to bring the said high-pressure relay (1, [6) into operation when the lowpressure intensifier has operated; a receiver (l8) ,actuated, in succession, bythe low-pressure intensifier (6, l3) and by the high-pressure intensifier (1, l6) and actuating the pressureutilizing means.

I nAvn)

US16107A 1934-04-20 1935-04-12 Transmission system for a pressureoperated member such as a hydraulic press Expired - Lifetime US2032185A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE2032185X 1934-04-20

Publications (1)

Publication Number Publication Date
US2032185A true US2032185A (en) 1936-02-25

Family

ID=7981816

Family Applications (1)

Application Number Title Priority Date Filing Date
US16107A Expired - Lifetime US2032185A (en) 1934-04-20 1935-04-12 Transmission system for a pressureoperated member such as a hydraulic press

Country Status (1)

Country Link
US (1) US2032185A (en)

Cited By (36)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2432088A (en) * 1942-03-19 1947-12-09 Valve Engineering Company Pressure actuated valve
US2434588A (en) * 1938-11-08 1948-01-13 New Britain Machine Co Power system
US2439323A (en) * 1943-02-01 1948-04-06 Douglas Aircraft Co Inc Riveting machine
US2509840A (en) * 1940-07-03 1950-05-30 Edward A Rockwell Diaphragm power unit
US2525426A (en) * 1941-06-13 1950-10-10 Edward A Rockwell Hydraulic controlled apparatus for applying power with travel control
US2564582A (en) * 1943-10-20 1951-08-14 Edward A Rockwell Intensifier for the application of power
US2566614A (en) * 1938-05-02 1951-09-04 Bendix Prod Corp Hydraulic brake
US2580353A (en) * 1947-11-08 1951-12-25 C B Hunt & Son Inc Fluid pressure intensifier
US2587404A (en) * 1947-01-28 1952-02-26 Stelzer William Serially operable hydraulic booster mechanism
US2608061A (en) * 1941-04-11 1952-08-26 Edward A Rockwell Power unit pressure responsive device
US2658341A (en) * 1950-05-16 1953-11-10 Eaton Mfg Co Hydraulic power system
US2705402A (en) * 1949-06-14 1955-04-05 Stelzer William Booster brake mechanism
US2740258A (en) * 1952-12-06 1956-04-03 Morris Machine Tool Company Quill advancing and retracting device
US2765624A (en) * 1950-11-14 1956-10-09 Hoschle Adolf Control apparatus for a hoisting truck
US2774256A (en) * 1951-09-08 1956-12-18 New Prod Corp Automatic overdrive and transmission system
US2794320A (en) * 1950-06-17 1957-06-04 Edward A Rockwell Power augmentation apparatus for hydraulic motor systems
US3186173A (en) * 1960-09-15 1965-06-01 American Mach & Foundry Variable pressure hydraulic system
US3257810A (en) * 1963-09-12 1966-06-28 Hanni Eduard Hydraulic drive system for press brakes
US3412554A (en) * 1965-05-05 1968-11-26 Inst Gidrodinamiki Sibirskogo Device for building up high pulse liquid pressures
US3485046A (en) * 1967-09-01 1969-12-23 Del Mar Eng Lab Movable pedestal
US3572035A (en) * 1969-04-01 1971-03-23 Western Electric Co Friction compensator
US3732691A (en) * 1970-03-19 1973-05-15 E Muller Method and apparatus for producing high hydraulic pressure, particularly for operating a forging press
US3875365A (en) * 1970-10-30 1975-04-01 Donald Joseph Beneteau Pressure intensifier cylinder
US4011724A (en) * 1971-09-16 1977-03-15 Lockheed Aircraft Corporation Dual force actuator
US4042280A (en) * 1973-11-13 1977-08-16 Kubatec Kunststoff- & Bautechnik Ag Method of breaking up objects
US4088048A (en) * 1975-11-03 1978-05-09 Hans Olssons Mekaniska Verkstad Ab Method and device for holing
DE3005127A1 (en) * 1980-02-12 1981-08-27 Knorr Bremse Gmbh Clutch booster for vehicles - has hydraulic and pneumatic piston next to each other in booster system
US4439986A (en) * 1981-01-23 1984-04-03 Snitgen Joseph D Hydraulic power unit
US4455828A (en) * 1981-09-30 1984-06-26 Snitgen Joseph D Hydraulic power unit
US4474004A (en) * 1978-01-31 1984-10-02 Girling Limited Power-operated boosters
US5107681A (en) * 1990-08-10 1992-04-28 Savair Inc. Oleopneumatic intensifier cylinder
US5526644A (en) * 1995-06-07 1996-06-18 Brieschke; Todd M. Oil intensifier cylinder
US5943862A (en) * 1996-03-19 1999-08-31 Tox Pressotechnik Gmbh Hydropneumatic machine tool with cushioning
US6269641B1 (en) * 1999-12-29 2001-08-07 Agip Oil Us L.L.C. Stroke control tool for subterranean well hydraulic actuator assembly
US20120204553A1 (en) * 2009-10-20 2012-08-16 Mikko Junttila Pressure Transformation Method and Device for its Implementation
US20140283512A1 (en) * 2013-03-25 2014-09-25 Minibooster Hydraulics A/S Hydraulic system

Cited By (38)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2566614A (en) * 1938-05-02 1951-09-04 Bendix Prod Corp Hydraulic brake
US2434588A (en) * 1938-11-08 1948-01-13 New Britain Machine Co Power system
US2509840A (en) * 1940-07-03 1950-05-30 Edward A Rockwell Diaphragm power unit
US2608061A (en) * 1941-04-11 1952-08-26 Edward A Rockwell Power unit pressure responsive device
US2525426A (en) * 1941-06-13 1950-10-10 Edward A Rockwell Hydraulic controlled apparatus for applying power with travel control
US2432088A (en) * 1942-03-19 1947-12-09 Valve Engineering Company Pressure actuated valve
US2439323A (en) * 1943-02-01 1948-04-06 Douglas Aircraft Co Inc Riveting machine
US2564582A (en) * 1943-10-20 1951-08-14 Edward A Rockwell Intensifier for the application of power
US2587404A (en) * 1947-01-28 1952-02-26 Stelzer William Serially operable hydraulic booster mechanism
US2580353A (en) * 1947-11-08 1951-12-25 C B Hunt & Son Inc Fluid pressure intensifier
US2705402A (en) * 1949-06-14 1955-04-05 Stelzer William Booster brake mechanism
US2658341A (en) * 1950-05-16 1953-11-10 Eaton Mfg Co Hydraulic power system
US2794320A (en) * 1950-06-17 1957-06-04 Edward A Rockwell Power augmentation apparatus for hydraulic motor systems
US2765624A (en) * 1950-11-14 1956-10-09 Hoschle Adolf Control apparatus for a hoisting truck
US2774256A (en) * 1951-09-08 1956-12-18 New Prod Corp Automatic overdrive and transmission system
US2740258A (en) * 1952-12-06 1956-04-03 Morris Machine Tool Company Quill advancing and retracting device
US3186173A (en) * 1960-09-15 1965-06-01 American Mach & Foundry Variable pressure hydraulic system
US3257810A (en) * 1963-09-12 1966-06-28 Hanni Eduard Hydraulic drive system for press brakes
US3412554A (en) * 1965-05-05 1968-11-26 Inst Gidrodinamiki Sibirskogo Device for building up high pulse liquid pressures
US3485046A (en) * 1967-09-01 1969-12-23 Del Mar Eng Lab Movable pedestal
US3572035A (en) * 1969-04-01 1971-03-23 Western Electric Co Friction compensator
US3732691A (en) * 1970-03-19 1973-05-15 E Muller Method and apparatus for producing high hydraulic pressure, particularly for operating a forging press
US3875365A (en) * 1970-10-30 1975-04-01 Donald Joseph Beneteau Pressure intensifier cylinder
US4011724A (en) * 1971-09-16 1977-03-15 Lockheed Aircraft Corporation Dual force actuator
US4042280A (en) * 1973-11-13 1977-08-16 Kubatec Kunststoff- & Bautechnik Ag Method of breaking up objects
US4088048A (en) * 1975-11-03 1978-05-09 Hans Olssons Mekaniska Verkstad Ab Method and device for holing
US4474004A (en) * 1978-01-31 1984-10-02 Girling Limited Power-operated boosters
DE3005127A1 (en) * 1980-02-12 1981-08-27 Knorr Bremse Gmbh Clutch booster for vehicles - has hydraulic and pneumatic piston next to each other in booster system
US4439986A (en) * 1981-01-23 1984-04-03 Snitgen Joseph D Hydraulic power unit
US4455828A (en) * 1981-09-30 1984-06-26 Snitgen Joseph D Hydraulic power unit
US5107681A (en) * 1990-08-10 1992-04-28 Savair Inc. Oleopneumatic intensifier cylinder
US5526644A (en) * 1995-06-07 1996-06-18 Brieschke; Todd M. Oil intensifier cylinder
US5943862A (en) * 1996-03-19 1999-08-31 Tox Pressotechnik Gmbh Hydropneumatic machine tool with cushioning
US6269641B1 (en) * 1999-12-29 2001-08-07 Agip Oil Us L.L.C. Stroke control tool for subterranean well hydraulic actuator assembly
US20120204553A1 (en) * 2009-10-20 2012-08-16 Mikko Junttila Pressure Transformation Method and Device for its Implementation
EP2491252B1 (en) * 2009-10-20 2019-06-26 ST-Koneistus Oy Pressure transformation method and device for its implementation
US20140283512A1 (en) * 2013-03-25 2014-09-25 Minibooster Hydraulics A/S Hydraulic system
US10337535B2 (en) * 2013-03-25 2019-07-02 Minibooster Hydraulics A/S Hydraulic system

Similar Documents

Publication Publication Date Title
US2573993A (en) Hydraulic pneumatic system for actuating pressure
US2302132A (en) Balancing press platen
US4235088A (en) Servohydraulic press with a closed loop control circuit and method of operating a fluid pressure operated press
US2300162A (en) Hydraulic press
US2113161A (en) Riveting apparatus
CH640312A5 (en) Pressure translated hydropneumatic drive device.
US2113115A (en) Hydromechanical press
US1927583A (en) Hydraulic motor control means
GB1105060A (en) Improvements in or relating to shear machines
US2087811A (en) Press
US3719445A (en) Use of metal working press for plastic compression molding
US2367241A (en) Control for fluid operated motors
US2691962A (en) Electrical control circuit for hydropneumatic power mechanisms
US3440967A (en) Fluid pressure source with booster
US2219896A (en) Power transmission
US2367242A (en) Molding press
US2637304A (en) Valve mechanism for reciprocating fluid motors
US2192778A (en) Drawing press
US4170876A (en) Method and apparatus for controlling a press plunger system
CN104285065A (en) Hydropneumatic device for pressure transmission and riveting device
US2584339A (en) Hydropneumatic locking cushion for power presses
US2162133A (en) Hydraulic force-multiplying machine
US2302922A (en) Variable delivery pilot pump control system
US2699649A (en) Hydraulic system for power shears and like machines
US2096073A (en) Work holding device