US129968A - Improvement in railway car-brakes - Google Patents
Improvement in railway car-brakes Download PDFInfo
- Publication number
- US129968A US129968A US129968DA US129968A US 129968 A US129968 A US 129968A US 129968D A US129968D A US 129968DA US 129968 A US129968 A US 129968A
- Authority
- US
- United States
- Prior art keywords
- cord
- brakes
- drum
- lever
- improvement
- 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
- 230000003137 locomotive Effects 0.000 description 6
- 241000612703 Augusta Species 0.000 description 2
- 230000000875 corresponding Effects 0.000 description 2
- 230000001808 coupling Effects 0.000 description 2
- 238000010168 coupling process Methods 0.000 description 2
- 238000005859 coupling 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
- B61H9/00—Brakes characterised by or modified for their application to special railway systems or purposes
- B61H9/003—Brakes characterised by or modified for their application to special railway systems or purposes for shunting operation or for narrow gauge trains
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
- B60T7/00—Brake-action initiating means
- B60T7/12—Brake-action initiating means for automatic initiation; for initiation not subject to will of driver or passenger
- B60T7/128—Self-acting brakes of different types for railway vehicles
Description
J. S. LAMAR.
Improverhent in Railway-Car Brakes. N0. 129,968. Patentedluly`30,1872.
@ummm @Hummm JAMES S. LAMAR, AUGUSTA, GEORGIA.
IMPROVEMENT IN RAILWAY CAR'BRAKES.
Specification forming part of Letters Patent No. Bb, dated July 30, 1872.
"or itA may be each truck, with the brake-` chain connected to the drum, and with-togglejointed bars and a lever for throwing the friction-Wheel into gear with the axle to be turned for Winding up the drum and putting on the brake; and the brakes of all the cars are connected, by a long cord or chain, with a drum on the locomotive or tender, which is also to be actuated by the axle, through the medium of a friction-wheel, and this friction-wheel is, in like ma-nner, thrown into gear by a lever p and toggle-jointed bars; but this lever is operated by the brakexnan by a cord, rod, or other contrivance provided for the purpose, and arranged tobe actuated in the cabin. The long `cord connecting all the brake-levers is arran ged in a peculiar manner, calculated to workwith y equal efficiency whether the car-couplings are slack and the cars are close together or wheth er they are taut and the train is extended to its greatest length.
yFigure lisa longitudinal sectional elevavation of part of a train with my improved brake apparatus applied. Fig. 2 is a planlof the V, bottom ofthe cars, and Fig. 3 isa cross-section through the toggle-jointed bars for throwing the friction-wheels in gear with the axles.
Similar letters of reference indicate corresponding parts. 1' n Arepresentsa friction-wheel, and B a brakechain drum on a shaft, (l, parallel with one of `the axles, D, of a car-truck. E is a chain, attached to the drum B, to wind on and oft', to move a lever, F, whose opposite end is connected with the brake-bar G by the chain H. This shaft C has one end arranged to slide in a bearing, I, toward or from the axles, and behind it is a pair of bars, J, arranged in the manner of toggle-jointed bars,`to force the said friction-wheel against the axle 5 and above the joint K of these bars the end of the `'short arm of a lever, L, is arranged for being forced down on them to push Yup said drum. The long arm of this lever has an eye, N, through which a long cord, O, running the whole length of the train, passes.` It alsopasses through guides P on the under side of the platform, or
in any position sufficiently above the lever and close together to raise it vertically when drawn up taut. locomotive or tender, and winds on a drum, B', similar to the one, B, for operating the brake-chains, and turned in a similar manner by a friction-wheel, A', acted on by the'axle D' of the locomotive; and said drum is put in gear by toggle-jointed bars J', lever L', and a cord, O' but this cord O', instead of passing through an eye in the end of said lever, is' atf tached to it, and extends up into the cabin Q, and is connected to a drum, B, which is to be turned by a hand-crank or wheel for putting drum A' in gear; and this drum puts on the brakes. The other end of the cord O, at the rear end of the train, will either be connected to the end of the last lever L in the series or it may pass through an eye and be connected to a spring beyond. -Said cord will be made in sections, and jointed together in the manner of the bell-cord of a train, to facilitate the arranging of it in making up the trains.,
It will be seen that the toggle-jointed bars afford a means of pressing the friction-WheelsV on the axles with great 4force without requiring very great stra-in on the cord O; yet this cord may have all the power required by the same means without a very great application of power on the drum K.
It will also be seen that, whether the cord O is slack by reason of the cars being close together or taut by their being extended as far as the coupling will allow, the action of the cord on the brakes will be uniform, the only difference being that they will be brought into action a little sooner or later.
Having thus described my invention, I claim as new and desire to secure by Letters Patent- The combination, with a car-brake and one of the axles, of the friction roller or wheel A, drum "B, chain E H, toggle-jointed bars J, and a lever, L, all substantially as specied.
JAMES S. LAMAR.
Witnesses T. B. MosHER, ALEX. F. ROBERTS.
This cord runs forward to the
Publications (1)
| Publication Number | Publication Date |
|---|---|
| US129968A true US129968A (en) | 1872-07-30 |
Family
ID=2199386
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US129968D Expired - Lifetime US129968A (en) | Improvement in railway car-brakes |
Country Status (1)
| Country | Link |
|---|---|
| US (1) | US129968A (en) |
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0
- US US129968D patent/US129968A/en not_active Expired - Lifetime
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