US182924A - Improvement in car-springs - Google Patents
Improvement in car-springs Download PDFInfo
- Publication number
- US182924A US182924A US182924DA US182924A US 182924 A US182924 A US 182924A US 182924D A US182924D A US 182924DA US 182924 A US182924 A US 182924A
- Authority
- US
- United States
- Prior art keywords
- spring
- coils
- car
- springs
- 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
- 229910000831 Steel Inorganic materials 0.000 description 6
- 239000010959 steel Substances 0.000 description 6
- 238000010276 construction Methods 0.000 description 2
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G11/00—Resilient suspensions characterised by arrangement, location or kind of springs
- B60G11/14—Resilient suspensions characterised by arrangement, location or kind of springs having helical, spiral or coil springs only
Definitions
- My spring is made from a steel bar of uniform thickness throughout its length. It is coiled in spiral form, so that its end coils will be of less diameter than its middle coils, whereby I obtain a spiral spring with its end coils the strongest, and its middle coils (of the greatest diameter) the weakest. I do not, however, claim a barrel-spring in which the steel rod is tapered in thickness from the middle each way, so that when coiled the spring ends will he comparatively thin to yield under light weight, and 'in which, under a heavy load, the ends will be first compressed, and the heavy or middle part afford the necessary resistance.
- I coil a bar of steel, a having the same thickness from end to end, so that the end coils a will form the strongest portions of the spring, and the middle coils a a. the lightest, although the end coils are of much less diameter than the middle coils.
- I claim- A coiled spring in which the bar is of equal thickness throughout, with the end coils of less diameter than the middle, to give the greatest strength to the ends and the least resisting force to the middle coils, as shown, and for the purpose described.
Description
w. P. HAN-SELL.
CAR-SPRING. No.18Z,9Z4. Patented oz.s,1a7e.
N. PETERS. PHOTO-LITHOGRAFHER, WASHINGTON D C UNITED STATES PATENT OFFICE.
WALTER P. HANSELL, OF PITTSBURG, PENNSYLVANIA, ASSIGNOR OF ONE- THIRD HIS RIGHT TO GEORGE W. MORRIS, OF SAME PLACE.
IMPROVEMENT IN CAR-SPRINGS.
Specification forming part of Letters Patent No. 182,924, dated October 3, 1876; application filed April 19, 1876.
which will enable others skilled in the art to' which it appertains to make and use the same, reference being had to the accompanying drawings, and to letters of reference marked thereon, which form a part of this specification.
My spring is made from a steel bar of uniform thickness throughout its length. It is coiled in spiral form, so that its end coils will be of less diameter than its middle coils, whereby I obtain a spiral spring with its end coils the strongest, and its middle coils (of the greatest diameter) the weakest. I do not, however, claim a barrel-spring in which the steel rod is tapered in thickness from the middle each way, so that when coiled the spring ends will he comparatively thin to yield under light weight, and 'in which, under a heavy load, the ends will be first compressed, and the heavy or middle part afford the necessary resistance.
In my improved spring the ends afford the greatest resistance, and give greater strength and elasticity to the spring.
Referring to the drawings, which represent an elevation and a section of my improved spring, I coil a bar of steel, a, having the same thickness from end to end, so that the end coils a will form the strongest portions of the spring, and the middle coils a a. the lightest, although the end coils are of much less diameter than the middle coils. This gives a spring in which as the coils decrease in diameter their strength or resisting powerincreases, while as their diameters increase their resistance decreases.
When ordinary weight is supported the large coils a a act, but when a heavy weight is upon the spring these large yielding coils come together, and the powerful smaller coils only act. By this construction the spring will last longer and not be so liable to break and crush at the ends under heavy loads. Such springs maybe grouped and have the necessary plates at top and bottom.
I claim- A coiled spring, in which the bar is of equal thickness throughout, with the end coils of less diameter than the middle, to give the greatest strength to the ends and the least resisting force to the middle coils, as shown, and for the purpose described.
In testimony that I claim the foregoing, I have aflixed my signature in presence of two witnesses.
WALTER P. HANSELL.
Witnesses:
BIDDLE R. HANSELL, CHAS. M. SHEAFFER.
Publications (1)
| Publication Number | Publication Date |
|---|---|
| US182924A true US182924A (en) | 1876-10-03 |
Family
ID=2252329
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US182924D Expired - Lifetime US182924A (en) | Improvement in car-springs |
Country Status (1)
| Country | Link |
|---|---|
| US (1) | US182924A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2598993A (en) * | 1948-07-31 | 1952-06-03 | Marquette Metal Products Co | Torque transmitting device |
| US5868383A (en) * | 1997-03-27 | 1999-02-09 | L&P Property Management Company | Multiple rate coil spring assembly |
-
0
- US US182924D patent/US182924A/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2598993A (en) * | 1948-07-31 | 1952-06-03 | Marquette Metal Products Co | Torque transmitting device |
| US5868383A (en) * | 1997-03-27 | 1999-02-09 | L&P Property Management Company | Multiple rate coil spring assembly |
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