US180460A - Improvement in relief-valves for air-brakes - Google Patents
Improvement in relief-valves for air-brakes Download PDFInfo
- Publication number
- US180460A US180460A US180460DA US180460A US 180460 A US180460 A US 180460A US 180460D A US180460D A US 180460DA US 180460 A US180460 A US 180460A
- Authority
- US
- United States
- Prior art keywords
- valve
- air
- stem
- brakes
- tube
- 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
- 210000000038 chest Anatomy 0.000 description 18
- 238000010276 construction Methods 0.000 description 4
- 230000000881 depressing Effects 0.000 description 2
- 238000007599 discharging Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 230000036633 rest Effects 0.000 description 2
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D88/00—Large containers
- B65D88/16—Large containers flexible
- B65D88/1612—Flexible intermediate bulk containers [FIBC]
-
- 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
- Y10T137/6851—With casing, support, protector or static constructional installations
- Y10T137/6855—Vehicle
- Y10T137/6866—Railway car
-
- 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
- Y10T137/7722—Line condition change responsive valves
- Y10T137/7781—With separate connected fluid reactor surface
- Y10T137/7832—Plural valves biased closed
-
- 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
- Y10T137/7722—Line condition change responsive valves
- Y10T137/7837—Direct response valves [i.e., check valve type]
- Y10T137/7838—Plural
- Y10T137/7846—Mechanically interconnected
Definitions
- Figure 1 is a side elevation of the invention Fig. 2, a sectional elevation, and Fig. 3 a longitudinal sectionof the valve and stem.
- Air and steam brakes can, as is well known, he very readily applied. To regulate them, however, after they are applied, and to readily take them off, has hitherto been difficult, although various forms ofr'elief-valves have been designed to effect this purpose. It is the aim of the preseiltinvention to provide an improved construction by means whereof such brakes can be more perfectly,controlled, and more easily and promptly taken ofi.
- A represents the device. It is, by means of the tubes 0 and D, attached to the air. or steam cylinder B, that is ordinarily arranged under each car of the train. Such cylinder is not shown in full, as its construction is well understood.
- the air or steam for operating the brakes is supplied through the tube E.
- the device con- .sists of a valve-chest, a, and an extension, Q.
- the tube 0 leads from'the top of the chest to the cylinder B, and the tube D from the extension Q to the cylinder.
- a valve, F, and stem H have a vertical reciprocating movement in the chest and extension, respectively.
- the tube E leads into the chest at the lower part thereof.
- I In the wall of the chest is an annular depression, I.
- J In the valve there is an annular depression, J .1 From this depression or groove J a series ofpassages, K K K, 850., lead inward to a central passage, P, which extends upward and through the valve and stem h, and-out of the top of the latter.
- a depression, f In the top ofthe valve is a depression, f.
- a spring, G rests in this depression, pressing below upon the valve, and above against the top of the valve-chest.
- Suitable packing S is arranged between the valve and chest-top.
- In the valvestem H is an annular depression or groove, L, from which a series of passages, L L, 850., lead inward to a central passage, T, in the stem.
- the passage T extends downward, and from its lower end a series of passages, M M, &c., lead outward to the periphery of the stem.
- the latter, at its lower end, h, is preferably made of less diameter than the part above.
- the stem at its lower end is also furnished with a head, R, made in the form of a screw,
- the head is provided with packing O, which, when the stem is drawn up, comes against the seat N at the lower end of the extension Q, and, operating as a valve, closes the opening in the end of the extension.
- the operation of the invention is as follows: To apply the brake air is admitted through the tube E- into the chest a. This causes the valve F to rise sufficiently for the air to pass from beneath the valve into the depression I in the wall of the chest. It thence passes into the groove J in the valve; thence, through the passages K K, &c., and P, into the tube 0, and through the latter into the cylinder B, where it acts upon the piston in the usual way.
- the depression I is so arranged as to cause it and the groove J to coincide when the valve is raised, as described, and when it is in the position shown in Fig. 2.
- the stem H has moved sufficiently to interrupt connection between the tube D and the groove L, passages L L, 850., and to prevent any escape of air from the cylinder through the tube D and stem.
- the packing or valve 0 has come to a bearing upon the seat N and closed the extension Q. In this position the air continues to pass through the tube 0 into the cylinder until an equilibrium is established above and beneath the valve, for the top and bottom of the valve are of equal area.
- the spring G above the valve acts sufficiently to depress the valve, and, in depressing it, to both close the opening from beneath the valve into the depression I, and also, by bringing the groove L in the stem H opposite the tube D, to provide an opening for the air in the cylinder to escape therefrom, for as soon as the groove L coincides with the tube D the air passes from the tube into the fallen below the end of the extension Q.
- This at once relieves the pressure in the cylinder and upon the brake. It is, however, at once restored by admitting more air through the pipe E.
- the air-supply through the lastnamed pipe can be cut off and the brake entirely taken off.
- the action of the device is very prompt, and by suitably managing the air-supply through the tube E the application of the brake is practically brought under perfeet control.
- One of these devices is attached to every cylinder throughout the train. If de sired, the arrangement shown in the drawing can be reversedthat is, so that the stem H is uppermost.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Safety Valves (AREA)
Description
z Sheets-Sheet 1.
C. CHADWICK. RELIEF VALVE FOR AIR-BRAKES. 'No.180, 46 0.. Patented Aug.1, 1876.
wmurssss. INVENTEIH.
N.F'ETERS. PHOTO-LITHDGRFMER, WASHINGTON, D C.
, UNITED STATES PATENT OFFIcE.
CHARLES OHADWIOK, OF HANNIBAL, MO., ASSIGNOR OF PART OF HIS RIGHT TO RICHARD DRANE AND GEORGE A. (JOE, OF SAME PLACE.
IMPROVEMENT IN RELIEF-VALVES FOR AIR-BRAKES.
Specification forming part of Letters Patent No. 180,460, dated August 1, 1876; application filed June 3, 1876.
To all whom it may concern Beit known that I, CHARLES OnAnwmK,
- a resident of Hannibal, Marion county, State of this specification, in which Figure 1 is a side elevation of the invention Fig. 2, a sectional elevation, and Fig. 3 a longitudinal sectionof the valve and stem.
Similar letters refer to similar parts.
Air and steam brakes can, as is well known, he very readily applied. To regulate them, however, after they are applied, and to readily take them off, has hitherto been difficult, although various forms ofr'elief-valves have been designed to effect this purpose. It is the aim of the preseiltinvention to provide an improved construction by means whereof such brakes can be more perfectly,controlled, and more easily and promptly taken ofi.
Referring to the annexed drawing, A represents the device. It is, by means of the tubes 0 and D, attached to the air. or steam cylinder B, that is ordinarily arranged under each car of the train. Such cylinder is not shown in full, as its construction is well understood. The air or steam for operating the brakes is supplied through the tube E. The device con- .sists of a valve-chest, a, and an extension, Q.
The tube 0 leads from'the top of the chest to the cylinder B, and the tube D from the extension Q to the cylinder. A valve, F, and stem H have a vertical reciprocating movement in the chest and extension, respectively. The tube E leads into the chest at the lower part thereof. In the wall of the chest is an annular depression, I. In the valve there is an annular depression, J .1 From this depression or groove J a series ofpassages, K K K, 850., lead inward to a central passage, P, which extends upward and through the valve and stem h, and-out of the top of the latter. In the top ofthe valve is a depression, f. A spring, G, rests in this depression, pressing below upon the valve, and above against the top of the valve-chest. Suitable packing S is arranged between the valve and chest-top. In the valvestem H is an annular depression or groove, L, from which a series of passages, L L, 850., lead inward to a central passage, T, in the stem. The passage T extends downward, and from its lower end a series of passages, M M, &c., lead outward to the periphery of the stem. The latter, at its lower end, h, is preferably made of less diameter than the part above. The stem at its lower end is also furnished with a head, R, made in the form of a screw,
to enable it to be adjusted to the end of the stem. The head is provided with packing O, which, when the stem is drawn up, comes against the seat N at the lower end of the extension Q, and, operating as a valve, closes the opening in the end of the extension.
The operation of the invention is as follows: To apply the brake air is admitted through the tube E- into the chest a. This causes the valve F to rise sufficiently for the air to pass from beneath the valve into the depression I in the wall of the chest. It thence passes into the groove J in the valve; thence, through the passages K K, &c., and P, into the tube 0, and through the latter into the cylinder B, where it acts upon the piston in the usual way. The depression I is so arranged as to cause it and the groove J to coincide when the valve is raised, as described, and when it is in the position shown in Fig. 2. Meanwhile the stem H has moved sufficiently to interrupt connection between the tube D and the groove L, passages L L, 850., and to prevent any escape of air from the cylinder through the tube D and stem. At the same time the packing or valve 0 has come to a bearing upon the seat N and closed the extension Q. In this position the air continues to pass through the tube 0 into the cylinder until an equilibrium is established above and beneath the valve, for the top and bottom of the valve are of equal area. When this occurs the spring G above the valve acts sufficiently to depress the valve, and, in depressing it, to both close the opening from beneath the valve into the depression I, and also, by bringing the groove L in the stem H opposite the tube D, to provide an opening for the air in the cylinder to escape therefrom, for as soon as the groove L coincides with the tube D the air passes from the tube into the fallen below the end of the extension Q. This at once relieves the pressure in the cylinder and upon the brake. It is, however, at once restored by admitting more air through the pipe E.
If desired, the air-supply through the lastnamed pipe can be cut off and the brake entirely taken off. The action of the device is very prompt, and by suitably managing the air-supply through the tube E the application of the brake is practically brought under perfeet control. One of these devices is attached to every cylinder throughout the train. If de sired, the arrangement shown in the drawing can be reversedthat is, so that the stem H is uppermost.
The above-described valve, it will be seen,
is virtually a balanced valve, and it is espeeially valuable in operating car-brakes where a peculiarly-sensitive and promptly-acting valve is required. It is equally valuable, however,
in delivering and discharging steam, gas, wa-
ter, or other fluid, and into and from any variety of cylinder or vessel.
What I claim is 1. The combination of the extension Q, tube D, stem H, groove L, and passages L L, 850., T M-.M, &c., substantially as described.
2. The combination ot'the extension Q, seat N, stem H, head R, and valve 0, substantially as set forth.
3. The combinationof the chest a, depression 1, valve F, groove J, passages K K, 850., and passage P, substantially as described.
4. The combination, in a relief-valve, of the chest (1 valve F, and spring G, substantially as described.
5. The combination of the cylinder 13, tubes 0 and D, chest a, and extension Q, valve F, spring G, stem H, groove L, passages L L, &c., T and M M, &c., substantially as described.
- CHARLES OHADWIOK.
Witnesses:
CHAS. B. SLOAT, J. L. LATHROP, J r.
Publications (1)
Publication Number | Publication Date |
---|---|
US180460A true US180460A (en) | 1876-08-01 |
Family
ID=2249866
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US180460D Expired - Lifetime US180460A (en) | Improvement in relief-valves for air-brakes |
Country Status (1)
Country | Link |
---|---|
US (1) | US180460A (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2437991A (en) * | 1936-04-30 | 1948-03-16 | Westinghouse Electric Corp | Control apparatus |
US2487716A (en) * | 1944-12-04 | 1949-11-08 | Warner Aircraft Corp | Parking valve for braking systems |
US2546367A (en) * | 1944-11-27 | 1951-03-27 | Warner Aircraft Corp | Hydraulic braking system with power parking valve |
US2805665A (en) * | 1946-11-26 | 1957-09-10 | Int Cigar Mach Co | Cigar machine |
-
0
- US US180460D patent/US180460A/en not_active Expired - Lifetime
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2437991A (en) * | 1936-04-30 | 1948-03-16 | Westinghouse Electric Corp | Control apparatus |
US2546367A (en) * | 1944-11-27 | 1951-03-27 | Warner Aircraft Corp | Hydraulic braking system with power parking valve |
US2487716A (en) * | 1944-12-04 | 1949-11-08 | Warner Aircraft Corp | Parking valve for braking systems |
US2805665A (en) * | 1946-11-26 | 1957-09-10 | Int Cigar Mach Co | Cigar machine |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US180460A (en) | Improvement in relief-valves for air-brakes | |
US1307207A (en) | James w | |
US836306A (en) | Reducing-valve. | |
US868030A (en) | Valve. | |
US721499A (en) | Reducing-valve. | |
US383314A (en) | Half to horace j | |
US237624A (en) | Biohaed h | |
US212576A (en) | Improvement in safety-valves | |
US476755A (en) | Mortimer b | |
US795448A (en) | Relief-valve for heating systems. | |
US342267A (en) | Muffler attachment for safety-valves | |
US150541A (en) | Improvement in pressure-regulators | |
US297066A (en) | Joseph m | |
US357702A (en) | Whistle | |
US1136004A (en) | Apparatus for carbonating liquids. | |
US831677A (en) | Pressure-regulator. | |
US391807A (en) | Pressure-reducing valve | |
US339757A (en) | Gas-pressure regulator | |
US639435A (en) | Relief-valve. | |
US921360A (en) | Safety-valve. | |
US8324A (en) | Improvement in self-acting blow-pipe lamps | |
US399663A (en) | Pressure-regulator | |
US794651A (en) | Pressure reducing and regulating valve. | |
US322410A (en) | baumeister | |
US1075354A (en) | Gas-regulator. |