US136581A - Improvement in car-brakes - Google Patents
Improvement in car-brakes Download PDFInfo
- Publication number
- US136581A US136581A US136581DA US136581A US 136581 A US136581 A US 136581A US 136581D A US136581D A US 136581DA US 136581 A US136581 A US 136581A
- Authority
- US
- United States
- Prior art keywords
- brakes
- car
- improvement
- helix
- brake
- 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
- 210000003414 Extremities Anatomy 0.000 description 2
- 241000237858 Gastropoda Species 0.000 description 2
- 241000287531 Psittacidae Species 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
- B61H13/00—Actuating rail vehicle brakes
- B61H13/02—Hand or other personal actuation
-
- 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
- Y10T74/00—Machine element or mechanism
- Y10T74/20—Control lever and linkage systems
- Y10T74/20396—Hand operated
- Y10T74/20474—Rotatable rod, shaft, or post
- Y10T74/20486—Drum and cable
Definitions
- a disk of iron or other suitable material is provided.
- the chain of the brake is secured at the outer extremity of the helix, and winds in the groove as the brake-rod is turned; the advantage of this arrangement being that in the earlier part of the movement, while taking up the slack of the chain and bringing up the brake to the wheel, as at Fig.
- Figs. 1 and 2 a fixed roller or pulley is shown, which guides the chain to the groove of the helix.
- Fig. 3 gives the plan, and Fig.
Description
W. H. BROWNE & W. M. PEGRAM.
Car-Brakes.
No.- 136,581. Patented March 11, 1873.
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AM. PnoTa-umnsRAFH/c c0. MK (ossome macaw) UNITED STATES PATENT OFFIcn.
WILLIAM HAND BROWNE AND WILLIAM M. PEGRAM, OF BALTIMORE, MD.
IMPROVEMENT IN CAR-BRAKES.
Specification forming part of Letters Patent No. 136,581, dated March 11, 1873.
To all whom it may concern:
Beit known that we, WM. HAND BROWNE and WM. M. PEGRAM, of the city of Baltimore and State of Maryland, have invented a new Improvement in Brakes for Railroad Cars, of which the following is a specification:
The nature of our invention is fully represented in the accompanying drawing, to which reference is made.
A disk of iron or other suitable material,
fixed firmly at the lower end of the brake-rod, and having a helix-shaped elevation or snail on the upper surface, grooved at the outer edge; said helix to comprise one whole turn, or only part of a turn, of a spiral in advancing from the axis to the circumference of the disk, and to have whatever form of curvature shall be found most suitable in any given case. The chain of the brake is secured at the outer extremity of the helix, and winds in the groove as the brake-rod is turned; the advantage of this arrangement being that in the earlier part of the movement, while taking up the slack of the chain and bringing up the brake to the wheel, as at Fig. 1, the movement shall proceed rapidly while, when thebrake is brought against the wheel and force is necessary, the chain being then on the smallest part of the helix, the greatest leverage is obtained, as in Fig. 2. Thus the whole operation of putting down the brake can be performed with part of a turn of the lever as effectively as and much more quickly than by the contrivance now in use.
In Figs. 1 and 2 a fixed roller or pulley is shown, which guides the chain to the groove of the helix. Fig. 3 gives the plan, and Fig.
Publications (1)
| Publication Number | Publication Date |
|---|---|
| US136581A true US136581A (en) | 1873-03-11 |
Family
ID=2205997
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US136581D Expired - Lifetime US136581A (en) | Improvement in car-brakes |
Country Status (1)
| Country | Link |
|---|---|
| US (1) | US136581A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4614130A (en) * | 1984-12-11 | 1986-09-30 | Outboard Marine Corporation | Tensioning control for flexible cable |
| US4934503A (en) * | 1987-11-25 | 1990-06-19 | Valeo | Clutch control device suitable for an automobile vehicle |
-
0
- US US136581D patent/US136581A/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4614130A (en) * | 1984-12-11 | 1986-09-30 | Outboard Marine Corporation | Tensioning control for flexible cable |
| US4934503A (en) * | 1987-11-25 | 1990-06-19 | Valeo | Clutch control device suitable for an automobile vehicle |
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