US143266A - Improvement in balanced valves for hydraulic cranes - Google Patents
Improvement in balanced valves for hydraulic cranes Download PDFInfo
- Publication number
- US143266A US143266A US143266DA US143266A US 143266 A US143266 A US 143266A US 143266D A US143266D A US 143266DA US 143266 A US143266 A US 143266A
- Authority
- US
- United States
- Prior art keywords
- cylinder
- improvement
- piston
- hydraulic cranes
- balanced valves
- 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
Links
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 12
- 239000010985 leather Substances 0.000 description 8
- UDMBCSSLTHHNCD-KQYNXXCUSA-N Adenosine monophosphate Chemical compound C1=NC=2C(N)=NC=NC=2N1[C@@H]1O[C@H](COP(O)(O)=O)[C@@H](O)[C@H]1O UDMBCSSLTHHNCD-KQYNXXCUSA-N 0.000 description 2
- 229950006790 Adenosine phosphate Drugs 0.000 description 2
- 241001149900 Fusconaia subrotunda Species 0.000 description 2
- 210000001503 Joints Anatomy 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 230000000875 corresponding Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000009877 rendering Methods 0.000 description 2
- 230000035939 shock Effects 0.000 description 2
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B13/00—Details of servomotor systems ; Valves for servomotor systems
- F15B13/02—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors
- F15B13/04—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors for use with a single servomotor
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T137/00—Fluid handling
- Y10T137/8593—Systems
- Y10T137/86493—Multi-way valve unit
- Y10T137/86574—Supply and exhaust
- Y10T137/8667—Reciprocating valve
- Y10T137/86694—Piston valve
- Y10T137/8671—With annular passage [e.g., spool]
Definitions
- the invention relates to hydraulic cranes and other hydraulic engines operated by means of water at a high pressure; and the object of the invention is to afi'ord a perfectly balanced valve, simple in construction and easily operated, and which will enable the operator .to retain the water in the machine after the low cylinder fitted externally to the inside of the cylinder A, as shown, and perforated laterally with a series of orifices, as indicated by dotted lines, to permit the water to escape through it into the larger portion of the cylinder A at g, and thence discharge through the exhaust-port O.
- the cylinders A and D are turned internally of the same size at the points a a, a a, and b b, respectively, for the reception of pistons.
- a rubber or leather ring, ff Between the lower end of the cylinder D and a shoulder in the cylinder A is pressed'a rubber or leather ring, ff, and the cylinder D is held in place firmly by the cylinder-head F, which screws into the cylinder A.
- a piston-rod, H Inside of the cylinder A is a piston-rod, H, made water-tight at the head F by means of a stuffing-box, G, and furnished with a long solid piston, K, so turned as to fit the cylinder D at the point I), and make a water-tight joint by means of the leather or rubber ring f.
- the rod H Upon the rod H are two other pistons, formed by the disks L L L L and the spool M, which latter is held in place by means of a nut, P, and forming water-tight joints'with the inside of the cylinder A at the points a. a, respectively, by leather or rubber rings at d pressed into cup form, and held firmly by the disks L L and the flanges N N of the spool M.
- the duty of the piston L N d is to balance the corresponding piston L N 01, thus removing all resistance, except friction, to the working of the valve.
- pistons are represented in position to close the inlet-port and open the exhaust.
- the piston-rod When it is desired to operate the crane, the piston-rod is forced downward until the piston K enters the ring f and closes the exhaustport 0, and until the piston N L d passes into the enlargement c c in the cylinder A, permitting the' water from the inlet-port B to pass around it into the crane through the port E.
- the pistons may be raised until the piston N L 01 again fits the cylinder A and closes the supply, but not enough to withdraw the piston K from the ring], thus holding the water in the crane until it is released by raising the pistons still higher to the position shown.
- the edges of the disks L L, flanges N N, and interior of the cylinder D, at the point b, are beveled from the leather rings, so as to render the effect'o'f the opening and closing of the valves gradual.
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Jib Cranes (AREA)
- Nonwoven Fabrics (AREA)
Description
J. A. VAUGHN Balanced Valves for Hydraulic Cranes,
No. 143,266, PatentedSeptember30,1873
AMP/#070 11777067714 PHIL Ca M 7. r use/1111:: moms;
UNITED STATES PATENT OFFICE.
JAMES A. VAUGHN, OF OUYAHOGA FALLS, OHIO.
IMPROVEMENT IN BALANCED VALVES FOR HYDRAULIC CRANES.
Specification forming part of Letters Patent No. 143,266, dated September 30, 1873; application filed July 31, 1873.
To all whom it may concern Be it known that I, JAMES A. VAUGHN, of Ouyahoga Falls, Summit county, Ohio, have invented an Improvement in Balanced Valves for Hydraulic Cranes, &c., of which the following is a specification:
The invention relates to hydraulic cranes and other hydraulic engines operated by means of water at a high pressure; and the object of the invention is to afi'ord a perfectly balanced valve, simple in construction and easily operated, and which will enable the operator .to retain the water in the machine after the low cylinder fitted externally to the inside of the cylinder A, as shown, and perforated laterally with a series of orifices, as indicated by dotted lines, to permit the water to escape through it into the larger portion of the cylinder A at g, and thence discharge through the exhaust-port O. The cylinders A and D are turned internally of the same size at the points a a, a a, and b b, respectively, for the reception of pistons. Between the lower end of the cylinder D and a shoulder in the cylinder A is pressed'a rubber or leather ring, ff, and the cylinder D is held in place firmly by the cylinder-head F, which screws into the cylinder A. Inside of the cylinder A is a piston-rod, H, made water-tight at the head F by means of a stuffing-box, G, and furnished with a long solid piston, K, so turned as to fit the cylinder D at the point I), and make a water-tight joint by means of the leather or rubber ring f. Upon the rod H are two other pistons, formed by the disks L L L L and the spool M, which latter is held in place by means of a nut, P, and forming water-tight joints'with the inside of the cylinder A at the points a. a, respectively, by leather or rubber rings at d pressed into cup form, and held firmly by the disks L L and the flanges N N of the spool M. The duty of the piston L N d is to balance the corresponding piston L N 01, thus removing all resistance, except friction, to the working of the valve.
In the drawing, the pistons are represented in position to close the inlet-port and open the exhaust.
When it is desired to operate the crane, the piston-rod is forced downward until the piston K enters the ring f and closes the exhaustport 0, and until the piston N L d passes into the enlargement c c in the cylinder A, permitting the' water from the inlet-port B to pass around it into the crane through the port E. When desired, the pistons may be raised until the piston N L 01 again fits the cylinder A and closes the supply, but not enough to withdraw the piston K from the ring], thus holding the water in the crane until it is released by raising the pistons still higher to the position shown. The edges of the disks L L, flanges N N, and interior of the cylinder D, at the point b, are beveled from the leather rings, so as to render the effect'o'f the opening and closing of the valves gradual.
I claim as my invention- 1. The combination of the long piston K with the pistons L N d N L d and cylinder A, so arranged as to retain the water in the crane after the inlet-port shall have been closed.
2. The beveled edges of the disk L, flange N, and interior of the cylinder D, at b, for the purpose of rendering the efiect of opening and closing the valve gradual, and preventing the shock consequent upon a sudden opening.
JAMES A. VAUGHN.
Witnesses GEO. Dow, GEO. L. Dow.
Publications (1)
Publication Number | Publication Date |
---|---|
US143266A true US143266A (en) | 1873-09-30 |
Family
ID=2212679
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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US143266D Expired - Lifetime US143266A (en) | Improvement in balanced valves for hydraulic cranes |
Country Status (1)
Country | Link |
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US (1) | US143266A (en) |
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- US US143266D patent/US143266A/en not_active Expired - Lifetime
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