GB190408357A - Improved Apparatus for Testing Brake Chains or Links. - Google Patents
Improved Apparatus for Testing Brake Chains or Links.Info
- Publication number
- GB190408357A GB190408357A GB190408357DA GB190408357A GB 190408357 A GB190408357 A GB 190408357A GB 190408357D A GB190408357D A GB 190408357DA GB 190408357 A GB190408357 A GB 190408357A
- Authority
- GB
- United Kingdom
- Prior art keywords
- lever
- chain
- weights
- pivoted
- attached
- 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
Links
Landscapes
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
8357. Blackburn, A. A., Brown, A. G., Brecknell, H., Munro, E. M., and Rogers, H. I. April 12. Testing chains.-The strength of chains is tested by means of a spring balance and windlass, a system of levers and weights, or a fluid-pressure ram and pressure gauge. The apparatus is mounted on a steel frame a, which is provided with wheels k, handles m, and supporting-legs l. In the first arrangement, Fig. 2, the spring balance c engages a pin b on the frame, and rests, when not in use, on a cross-bar n. The chain d is attached to the spring balance and to a windlass e, which is rotated by means of a worm wheel f, worm g, and handle i. In the second arrangement, Fig. 5, the action of the weights x is transmitted to the chain by means of a lever w pivoted at w<1>, lever v<3> pivoted at v<5> and connected to the lever w by a pin-and-slot device, link v<4>, lever v pivoted at v<2>, link v<1>, and L-shaped lever p. The lever p is forked to form two bearings for a winding-axle q<1>, to which one end of the chain d is attached, the other end being attached to a fixed hook o. Before placing any weights x on the hanger x<1>, the chain is tightened by oscillating a handle u, which carries a pawl acting on a ratchet-wheel fixed to the shaft q<1>, until a stop z on the lever w meets the frame. A second ratchetwheel on the shaft q<1> is acted on by a pawl to prevent the return of the shaft. The levers are pivoted on knife-edge bearings, and their weights are such as to balance the friction of the moving parts. In the third arrangement, the chain is attached at one end to a winding-axle provided with a handle and ratchet retaining-device, and at the other end to a plunger of small diameter passing through one end of a fluid-pressure cylinder. The plunger has also a part of large diameter, which passes through the other end of the cylinder. A hand pump, a tank for the fluid, and an exhaust valve are provided. The tension of the chain may be indicated directly by the pressure gauge, which is connected to the hydraulic cylinder.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB190408357T | 1904-04-12 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB190408357A true GB190408357A (en) | 1905-03-16 |
Family
ID=32625290
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB190408357D Expired GB190408357A (en) | 1904-04-12 | 1904-04-12 | Improved Apparatus for Testing Brake Chains or Links. |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB190408357A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105067246A (en) * | 2015-08-13 | 2015-11-18 | 重庆永钢橡塑有限责任公司 | Automatic tension testing device of super-long chain |
| CN105092225A (en) * | 2015-08-13 | 2015-11-25 | 重庆永钢橡塑有限责任公司 | Pulling force testing seat |
-
1904
- 1904-04-12 GB GB190408357D patent/GB190408357A/en not_active Expired
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105067246A (en) * | 2015-08-13 | 2015-11-18 | 重庆永钢橡塑有限责任公司 | Automatic tension testing device of super-long chain |
| CN105092225A (en) * | 2015-08-13 | 2015-11-25 | 重庆永钢橡塑有限责任公司 | Pulling force testing seat |
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