US396108A - Fluid speed-regulating device - Google Patents

Fluid speed-regulating device Download PDF

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US396108A
US396108A US396108DA US396108A US 396108 A US396108 A US 396108A US 396108D A US396108D A US 396108DA US 396108 A US396108 A US 396108A
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fluid
regulating device
fluid speed
cylinder
pistons
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
    • F16F9/00—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium
    • F16F9/10—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium using liquid only; using a fluid of which the nature is immaterial
    • F16F9/14—Devices with one or more members, e.g. pistons, vanes, moving to and fro in chambers and using throttling effect
    • F16F9/16—Devices with one or more members, e.g. pistons, vanes, moving to and fro in chambers and using throttling effect involving only straight-line movement of the effective parts
    • F16F9/22—Devices with one or more members, e.g. pistons, vanes, moving to and fro in chambers and using throttling effect involving only straight-line movement of the effective parts with one or more cylinders each having a single working space closed by a piston or plunger
    • F16F9/26—Devices with one or more members, e.g. pistons, vanes, moving to and fro in chambers and using throttling effect involving only straight-line movement of the effective parts with one or more cylinders each having a single working space closed by a piston or plunger with two cylinders in line and with the two pistons or plungers connected together

Definitions

  • My invention relates to that class of fluid speed-retarders in which a piston working in a cylinder is retarded by the resistance o'tl'ered to the passage of the fluid through restricted apertures, the object being to so arrange the parts that no packingboxes for the piston-rod will be required and that all tendency to leakage will be avoided.
  • A represents a cylinder havi n a closed bottom, B, and a head, 0.
  • the cylinder is divided into two chambers, S and S, by :1 diaphragm.
  • I have in the cylinder A two pistons, P and P, one on each side of the diaphragm D, as shown.
  • the two pistons P and P are attached to the piston-rod R by any suitable means.
  • To connect the two chambers one with the other I use a pipe, T, opening at T into the lower chamber 'and at T into the upper chamber.
  • the upper chamber is made somewhat larger than the lower one, so as to leave a space for an excess of fluid.
  • the upper chamber is not closed, but has an opening, F.
  • the chambers S and S"bctween the pistons P P and the diaphragm D are connected to each other by one or more passages. Said passages may pass directly through the diaphragm or around it through the pipe M M.
  • the opening in the passage from S to S may 111g drawings, in which the device is fully.
  • V a valve, so as to get the desired amount of restriction to the flow of liquid from one chamber to the other.
  • Small passages may be made through the pistons P and P, as indicated at K and L, to act in cooperation with all or any of the otherpassages for the passage of fluid from one part of the cylinder to the other. If desirable,' other Valves than the one at V can be applied to the apertures.
  • I claim- 1 In a fluid speed-retarder, the combination of the cylinder A, divided by a diaphragm, D, into two chambers, and pipes leading from one chamber to the other, with two pistons, P P, and piston-rod R, all operating together substantially as described, and for the purpose set forth.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Actuator (AREA)

Description

(No Model.)
FLUID WITH EEEEE,
ho /w lam/(w WM W. E. NIOKERSON.
SPEED REGULATING DEVICE.
Patented Jan. 15, 1889.
INVENTD UNITED STATES PATENT FFIcE.
VILLIAM E. NICKERSON, OF CAMBRIDGE, MASSACHUSETTS.
FLUID SPEED-REGULATING DEVICE.
SPECIFICATION forming part of Letters Patent No. 396,108, dated January 15, 1889. Application filed October 22, 1888. Serial No. 288,804. (No model.)
To all whom it may concern.
Be it known that I, \VILLIAM E. NICKER- SON, of Cambridge, in the county of Middlesex and State of Massachusetts, have invented a new and useful Improvement in liluid Speed- Regulating Devices, of which the following, taken in connection with the accompanying drawings, is a Specification.
My invention relates to that class of fluid speed-retarders in which a piston working in a cylinder is retarded by the resistance o'tl'ered to the passage of the fluid through restricted apertures, the object being to so arrange the parts that no packingboxes for the piston-rod will be required and that all tendency to leakage will be avoided. These objects I attain by the mechanism shown in the accompanyshown in vertical section.
A represents a cylinder havi n a closed bottom, B, and a head, 0. The cylinder is divided into two chambers, S and S, by :1 diaphragm. I have in the cylinder A two pistons, P and P, one on each side of the diaphragm D, as shown. The two pistons P and P are attached to the piston-rod R by any suitable means. To connect the two chambers one with the other I use a pipe, T, opening at T into the lower chamber 'and at T into the upper chamber. The upper chamber is made somewhat larger than the lower one, so as to leave a space for an excess of fluid. The upper chamber is not closed, but has an opening, F.
The chambers S and S"bctween the pistons P P and the diaphragm D are connected to each other by one or more passages. Said passages may pass directly through the diaphragm or around it through the pipe M M. The opening in the passage from S to S may 111g drawings, in which the device is fully.
be regulated by a valve, V, so as to get the desired amount of restriction to the flow of liquid from one chamber to the other. Small passages may be made through the pistons P and P, as indicated at K and L, to act in cooperation with all or any of the otherpassages for the passage of fluid from one part of the cylinder to the other. If desirable,' other Valves than the one at V can be applied to the apertures.
I claim- 1. In a fluid speed-retarder, the combination of the cylinder A, divided by a diaphragm, D, into two chambers, and pipes leading from one chamber to the other, with two pistons, P P, and piston-rod R, all operating together substantially as described, and for the purpose set forth.
2. In a fluid speed-retarder, the combination of the cylinder A, divided by a diaphragm into two chambers, with pistons P and P, having passages through them, the piston-rod R, and pipe T, substantially as described, and forthe purpose set forth.
3. Ina fluid speed-retarder, the combination of the cylinder A, divided by a diaphragm, D, into two chambers, with the pistons P P and apipe leading from one chamber to the other, having a valve to regulate the flow of fluid, substantially as described, and for the purpose set forth.
In testimony whereof I have signed my name to this specification, in the presence of two subscribing witnesses, 011 this 20th day of October, A. D. 1888.
WILLIAM E. NICKERSON.
Witnesses:
FRANK G. PARKER, MATTHEW M. BLUNT.
US396108D Fluid speed-regulating device Expired - Lifetime US396108A (en)

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Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2431759A (en) * 1944-03-30 1947-12-02 Westinghouse Air Brake Co Stabilizer for pressure fluid servomotors
US2533226A (en) * 1945-05-30 1950-12-12 Vibradamp Inc Hydraulic damping mechanism
US2619193A (en) * 1950-05-01 1952-11-25 Peter G Mangos Mechanical movement
US2758536A (en) * 1952-06-07 1956-08-14 Ernest M Lauck Automatic density control for compressing apparatus
US2993732A (en) * 1958-01-15 1961-07-25 William M Walker Safety apparatus
US3023739A (en) * 1960-05-02 1962-03-06 Fairchild Engine & Airplane Co High speed pneumatic actuator
US3036538A (en) * 1958-09-24 1962-05-29 Gen Dynamics Corp Dynamic impacting machine
US3170575A (en) * 1964-01-13 1965-02-23 James L Gibson Cushioning device for railroad car couplers
US6776269B1 (en) * 2003-06-18 2004-08-17 Tenneco Automotive Operating Company, Inc. Twin piston shock absorber
US20190153740A1 (en) * 2016-03-31 2019-05-23 University Of Canterbury Passive damper

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2431759A (en) * 1944-03-30 1947-12-02 Westinghouse Air Brake Co Stabilizer for pressure fluid servomotors
US2533226A (en) * 1945-05-30 1950-12-12 Vibradamp Inc Hydraulic damping mechanism
US2619193A (en) * 1950-05-01 1952-11-25 Peter G Mangos Mechanical movement
US2758536A (en) * 1952-06-07 1956-08-14 Ernest M Lauck Automatic density control for compressing apparatus
US2993732A (en) * 1958-01-15 1961-07-25 William M Walker Safety apparatus
US3036538A (en) * 1958-09-24 1962-05-29 Gen Dynamics Corp Dynamic impacting machine
US3023739A (en) * 1960-05-02 1962-03-06 Fairchild Engine & Airplane Co High speed pneumatic actuator
US3170575A (en) * 1964-01-13 1965-02-23 James L Gibson Cushioning device for railroad car couplers
US6776269B1 (en) * 2003-06-18 2004-08-17 Tenneco Automotive Operating Company, Inc. Twin piston shock absorber
US20190153740A1 (en) * 2016-03-31 2019-05-23 University Of Canterbury Passive damper

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