US172896A - Improvement in hydraulic elevators - Google Patents

Improvement in hydraulic elevators Download PDF

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US172896A
US172896A US172896DA US172896A US 172896 A US172896 A US 172896A US 172896D A US172896D A US 172896DA US 172896 A US172896 A US 172896A
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piston
cylinder
hollow
hydraulic
rod
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    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15BSYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B15/00Fluid-actuated devices for displacing a member from one position to another; Gearing associated therewith
    • F15B15/08Characterised by the construction of the motor unit
    • F15B15/14Characterised by the construction of the motor unit of the straight-cylinder type
    • F15B15/16Characterised by the construction of the motor unit of the straight-cylinder type of the telescopic type

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  • 'ERS PHOTO ⁇ LIYHOGRAPNER. WASHINGTON, D. G.
  • My invention relates to that class of elevators in which hydraulic pressure is used, and the main object sought to be secured is economy in the use of water.
  • My invention consists in the combinations of thedevices hereinafter explained and claimed.
  • A represents the outer casing or cylinder, yprovided .with the inlets et a.
  • a suitable frame-work to sustain the pulleys 1 A l and 2 2.
  • the vertical guides B I/ for the .cross-head C Within the cylinder A works the hollow piston D, the upper portion. of which is connected by suitable means to the cross-head C.
  • a stationary hollow cylinder, E within the hollow piston D is a stationary hollow cylinder, E, secured to the bottom of cylinder A.
  • the piston D moves and operates between the interior of the cylinder A and the exterior .of the cylinder E, for purposes hereinafter explained.
  • the pipes conducting the water to the openings a and 4a may be supplied with'dischargecocks of any of the Well-known styles.
  • the hollow cylinders A and E iu combination with the hollow piston D and cross-head C, substantially asl and for the purpose described.
  • the hollow cylinders A and E and hollow piston'D in combination with the pistou lF and cross-head C, substantially as and for the purpose set forth.

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Actuator (AREA)
  • Types And Forms Of Lifts (AREA)

Description

,ZSh'eets-Sheet'l. T. STEBINS.
. HYDRAULIC-ELE-VATOR.
No.172,896 Patented Feb. 1, 1876.
` lll/11111111111111111011..
N.PE|'ERS, PHOTO`LIYHOGRAPNER. WASHINGTON, D. G.
2 Sheets-Sheet Z.
T. S'TEBINS.
dal? I.. L
Wi'inves'sesf f /fmw N. FET ENS. PHOTO-UTMOGRAPHER, WASHINGTON. DV C.
.any suitable means.
UNITED STATES vPA'rrnvr rrron.
TIMOTHY STEBINS, BOSTON,'MA SSACHUSETTS.
IMPROVEMENT IN HYDRAULIC IELEVATORS.
Specification forming part of Letters Patent No. 172.896, dated February 1, 1876; application filed December 17, 1875.
To all whomit may concern Be it known that I, TIMOTHY STEBINs, of Boston, Massachusetts, have invented certain new and useful Improvements in Hydraulic Elevators, of which the following is a full, clear, and exact description, reference being had to the accompanying drawings making a part of this specification, in which- Figure lis a perspective view of my hydraulic device. Fig. 2 is a vertical section of the same. Fig. S5 is the same, showing the main piston rising. Fig. 4 is the same, showing the auxiliary piston brought .into action. Fig. o is a horizontal section, showing the inlet-pipes.
My invention relates to that class of elevators in which hydraulic pressure is used, and the main object sought to be secured is economy in the use of water. My invention consists in the combinations of thedevices hereinafter explained and claimed. l
To enable others skilled in the art to make and use my invention, I will proceed to describe the exact manner in which l have carried it out.
In the drawings, A represents the outer casing or cylinder, yprovided .with the inlets et a. On each side of the casing A issecured a suitable frame-work to sustain the pulleys 1 A l and 2 2. From this framework rises the vertical guides B I/ for the .cross-head C. Within the cylinder A works the hollow piston D, the upper portion. of which is connected by suitable means to the cross-head C. Again, within the hollow piston D is a stationary hollow cylinder, E, secured to the bottom of cylinder A. Thus the piston D moves and operates between the interior of the cylinder A and the exterior .of the cylinder E, for purposes hereinafter explained. Again, within the cylinder E is itted to operate the piston F, having a hollow piston-rod, f, reaching nearly A to the top of the cylinder E. Aga-in, within the hollow piston-rod or cylinder fis snuglytted and operated the piston G. This hollow rod or cylinder f is provided with a valve, g, at its bottom, for a purpose hereinafter explained. Attached to the piston G is the piston-rod I, the opposite or upper end of which is connected with the cross-head C by Through the base of required.
piston D, and supplies the water for raising` that piston. The opening a enters the cylinder A immediately under the piston F, and
supplies the water for raising that piston. The pipes conducting the water to the openings a and 4amay be supplied with'dischargecocks of any of the Well-known styles.
The operation of my device is as follows:
The elevator being ready to ascend, water is` admitted through the opening a, and the pressure raises the piston D, and with it the piston- ,rod I, both being connected with the cross head O. The result will be the equal ascent of the pistons D and G. As the piston G' rises in the hollow rod or cylinder f, the dead water restingin pipe below the cock enters through the valve geand opening g into and iills the cylinder f. Let us suppose. the elevator has reached the third floor of the building, and some additional weight is added to the load, and the main piston D is unable to rise farther. Water is admitted through the opening a and und'er the piston F. This piston then rises, and as the valve g closes and prevents the escape of the water from under the piston G, the piston F carries with it the piston G and piston'rod I, and an additional power is thus added to the piston D to aid in raising the elevator. By this construction it is evident that I am able to bring the auxiliary piston F into immediate actionwhen needed. It remains in position to receive the hydraulic pressure, while the pistoin G and rod I move up with the piston D, and practically become an elongated rod to the piston F, ready to catch the pressure and come to the aid of piston, D whenever additional aid is It is evident` from the above description that, instead of the stationary hollow cylinder E, a moving cylinder could be used with a piston fitting in the cylinderA andv that the number of cylinders and pistons may be increased without departing from the spirit of my invention. Any well-known arrange ment of supply and exhaust cocks may be used. When the exhaust-cocks are opened the pistons will all gradually descend, and when the piston F reaches the bottom of cylinder E, the valve g will be raised from its seat and opened by the short rod i, and the piston Gr will be allowed to continue its descent until it reaches the bottom of the cylinder f.
Having thus described my invention, what I claim as new, and desire to secure by Letters Patent, is
1. In a hydraulic elevator, the hollow cylinders A and E, iu combination with the hollow piston D and cross-head C, substantially asl and for the purpose described.
2. In a hydraulic elevator, the hollow cylinders A and E and hollow piston'D, in combination with the pistou lF and cross-head C, substantially as and for the purpose set forth.
3. In a hydraulic elevator, the hollow cylin-y
US172896D Improvement in hydraulic elevators Expired - Lifetime US172896A (en)

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Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3628613A (en) * 1969-08-18 1971-12-21 Edward J Kaufman Agricultural implement end frames lift means
US4201053A (en) * 1978-11-06 1980-05-06 Dover Corporation Telescopic cylinder automatic synchronizer
US4809954A (en) * 1986-02-14 1989-03-07 Mannesmann Ag Loop carriage
US20050171277A1 (en) * 2003-11-18 2005-08-04 Bo Li Antireflective coatings for via fill and photolithography applications and methods of preparation thereof
US8557877B2 (en) 2009-06-10 2013-10-15 Honeywell International Inc. Anti-reflective coatings for optically transparent substrates
US8864898B2 (en) 2011-05-31 2014-10-21 Honeywell International Inc. Coating formulations for optical elements
US10544329B2 (en) 2015-04-13 2020-01-28 Honeywell International Inc. Polysiloxane formulations and coatings for optoelectronic applications

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3628613A (en) * 1969-08-18 1971-12-21 Edward J Kaufman Agricultural implement end frames lift means
US4201053A (en) * 1978-11-06 1980-05-06 Dover Corporation Telescopic cylinder automatic synchronizer
US4809954A (en) * 1986-02-14 1989-03-07 Mannesmann Ag Loop carriage
US20050171277A1 (en) * 2003-11-18 2005-08-04 Bo Li Antireflective coatings for via fill and photolithography applications and methods of preparation thereof
US8053159B2 (en) * 2003-11-18 2011-11-08 Honeywell International Inc. Antireflective coatings for via fill and photolithography applications and methods of preparation thereof
US8557877B2 (en) 2009-06-10 2013-10-15 Honeywell International Inc. Anti-reflective coatings for optically transparent substrates
US8784985B2 (en) 2009-06-10 2014-07-22 Honeywell International Inc. Anti-reflective coatings for optically transparent substrates
US8864898B2 (en) 2011-05-31 2014-10-21 Honeywell International Inc. Coating formulations for optical elements
US10544329B2 (en) 2015-04-13 2020-01-28 Honeywell International Inc. Polysiloxane formulations and coatings for optoelectronic applications

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