US130526A - Improvement in railway car-brakes - Google Patents
Improvement in railway car-brakes Download PDFInfo
- Publication number
- US130526A US130526A US130526DA US130526A US 130526 A US130526 A US 130526A US 130526D A US130526D A US 130526DA US 130526 A US130526 A US 130526A
- Authority
- US
- United States
- Prior art keywords
- brakes
- improvement
- railway car
- car
- shoes
- 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
- 238000010276 construction Methods 0.000 description 4
- 230000015572 biosynthetic process Effects 0.000 description 2
- 230000000875 corresponding Effects 0.000 description 2
- 238000005755 formation reaction Methods 0.000 description 2
- 238000004804 winding Methods 0.000 description 2
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61H—BRAKES OR OTHER RETARDING DEVICES SPECIALLY ADAPTED FOR RAIL VEHICLES; ARRANGEMENT OR DISPOSITION THEREOF IN RAIL VEHICLES
- B61H1/00—Applications or arrangements of brakes with a braking member or members co-operating with the periphery of the wheel rim, a drum, or the like
Definitions
- Figure 1 of the drawing is a representation of a plan view ofmy invention.
- Fig. 2 is a vertical section of the same.
- This invention has relation to an improved car-brake; and it consists in the novel construction and arrangement of the parts hereinafter more fully set forth.
- A represents a car-body; B, the wheels; 0, the axles thereof G, grooved drums, rigidly secured to the axles about midway between the wheels.
- Each of these drums is composed of two semicircular halves, having hubs c, by means of which they are bolted to the axle. By this means room is given to the drums for expansion and contraction.
- D D represent friction-shoes, curved to fit the peripheries of the drums O, and founded on their contact faces to correspond with the grooves. These shoes are the rods d cl, as shown clearly in the drawing.
- G indicates a cord or chain, which is attached to the end of one of the bars F, the latter being connected to the other by a couplingrod or device, G, and the same in turn connected by a link, G, to a spring, H, secured to one end of the car.
- the cord G is wound round a vertical shaft, I, holding a spur-wheel, t, which engages with a pinion, j, on the lower end of a shaft 70.
- the car-brake herein described, consisting of the sectional grooved rollers O, beveled shoes D D, jointed links at d, upright arms E, transverse levers F, longitudinal bar E, cords G G G, spring H, and crank-standards K I, all constructed and arranged substantially as specified.
Description
S. NUNAMAKER.
Improvement in Railway-Car Brakes.
No. 130,526. Patqnted Aug. 13, I872.
PATENT FFroE.
SOLOMON NUNAMAKEB, OF OSOEOLA MILLS, PENNSYLVANIA.
IMPROVEMENT iN RAILWAY CAR-BRAKES.
Specification forming part of Letters Patent No. 130,526, dated August 13, 1872.
To all whom "it may concern:
Be it known that I, SOLO ON NUNAMAKER, of Osceola Mills, in the county of Glearfield, and State of Pennsylvania, have invented a new and valuable Improvement in Railroad Oar-Brakes; and I do hereby declare that the following is a full, clear, and exact description of the construction and operation of the same, reference being had to the annexed drawing making a part of this specification, and to the letters and figures of reference marked thereon.
Figure 1 of the drawing is a representation of a plan view ofmy invention. Fig. 2 is a vertical section of the same.
This invention has relation to an improved car-brake; and it consists in the novel construction and arrangement of the parts hereinafter more fully set forth.
In the accompanying drawing, A represents a car-body; B, the wheels; 0, the axles thereof G, grooved drums, rigidly secured to the axles about midway between the wheels. Each of these drums is composed of two semicircular halves, having hubs c, by means of which they are bolted to the axle. By this means room is given to the drums for expansion and contraction. D D represent friction-shoes, curved to fit the peripheries of the drums O, and founded on their contact faces to correspond with the grooves. These shoes are the rods d cl, as shown clearly in the drawing.
G indicates a cord or chain, which is attached to the end of one of the bars F, the latter being connected to the other by a couplingrod or device, G, and the same in turn connected by a link, G, to a spring, H, secured to one end of the car. The cord G is wound round a vertical shaft, I, holding a spur-wheel, t, which engages with a pinion, j, on the lower end of a shaft 70. The latter is provided=with a hand-wheel, L, or crank, by turning which this cord is wound to tighten the brake. By winding this cord, both shoes D D are simultaneously brought in contact with the drum 0. and the turning of the wheels B arrested. When the cord is unwound, the shoes are relieved from pressure against the rollers by the spring E. It will be noticed that by the groovin g of these rollers and the corresponding formation of the shoes, a larger friction surface is obtained.
Having fully described my invention, what I claim'as new, and desire to secure by Let- Patent, is'
The car-brake, herein described, consisting of the sectional grooved rollers O, beveled shoes D D, jointed links at d, upright arms E, transverse levers F, longitudinal bar E, cords G G G, spring H, and crank-standards K I, all constructed and arranged substantially as specified.
In testimony that I claim the above I have hereunto subscribed my name in the presence of two witnesses.
SOLOMON NUNAMAKEB.
Witnesses H. H. ZEPHART, D. PERSING.
Publications (1)
Publication Number | Publication Date |
---|---|
US130526A true US130526A (en) | 1872-08-13 |
Family
ID=2199944
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US130526D Expired - Lifetime US130526A (en) | Improvement in railway car-brakes |
Country Status (1)
Country | Link |
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US (1) | US130526A (en) |
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- US US130526D patent/US130526A/en not_active Expired - Lifetime
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