US102421A - Improvement in helical springs - Google Patents
Improvement in helical springs Download PDFInfo
- Publication number
- US102421A US102421A US102421DA US102421A US 102421 A US102421 A US 102421A US 102421D A US102421D A US 102421DA US 102421 A US102421 A US 102421A
- Authority
- US
- United States
- Prior art keywords
- improvement
- helical springs
- spring
- helical spring
- nichols
- 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 4
- 239000010959 steel Substances 0.000 description 4
- 238000009835 boiling Methods 0.000 description 2
- 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
- Figure 1 is a vertical section of my improved helical spring for railroad cars.
- Figure 3 an exterior view of the spring.
- my improved spring consists of a flanged bar, A, of steel, coiled in the form of a helix, the flange a being on the exterior of the barand at the upper edge of the same,
- a helical spring composed of vertical and parallel coils, with upper external flange, as set forth.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Springs (AREA)
Description
tinned fitatrt 13mm ctjlfiirr.
WILLIAM RHODA NICHOLS, OF PHILADELPHIA, PENNSYLVANIA, ASSIGNOR NICHOLS, PIOKERING & 00., 0F SAME PLACE.
Letters Patent No. 102,421, dated April 26, 1870.
IMPROVEMENT IN HELICAL SPRING-S.
The Schedule referredto in these Letters Patent and making pazt of the same.
I, WiLLIAM RHODA NICHOLS, of Philadelphia, county of Philadelphia, State of Pennsylvania, have invented an Improved Helical Spring for "Railroad Cars, of which the following is a specification.
. Nature and Object of the Invention.
Description of the Accompanying Drawing. Figure 1 is a vertical section of my improved helical spring for railroad cars.
Figure 2, the same as it appears when compressed to its utmost limit.
Figure 3, an exterior view of the spring.
General Description.
It will be seen, on reference to the drawing, that my improved spring consists of a flanged bar, A, of steel, coiled in the form of a helix, the flange a being on the exterior of the barand at the upper edge of the same,
and the coils being so arranged that while one is within, it shall not be in contact with the other, while'the flanges are at all times free from contact with each other and with any other part of the spring, unless the latter be compressed to its utmost limits, as shown in fig. 2, a point to which the spring has rarely, if ever, to be compressed.
I am aware that helical springs have been" made both of plain flat bars of steel and of bars with a flange on each edge; but I have found, ait-er repeated tests, that the most effective helical spring can be produced by boiling a bar with single external flange situated at the upper edge of the coil, providing the folds are arrangedvertically and parallel with each other, as shown in the drawing.
' While my improved helical spring may be made somewhat higher than those of ordinary construction, owing to the presence of the external flanges a, the latter imparta lateral stability to the spring, without impairing its elastic properties.
Claim.
A helical spring, composed of vertical and parallel coils, with upper external flange, as set forth.
In testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses.
WILLIAM RHODA NICHOLS. Witnesses:
P. B. J onus, CHAS. E. PANCOAS'L'
Publications (1)
| Publication Number | Publication Date |
|---|---|
| US102421A true US102421A (en) | 1870-04-26 |
Family
ID=2171903
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US102421D Expired - Lifetime US102421A (en) | Improvement in helical springs |
Country Status (1)
| Country | Link |
|---|---|
| US (1) | US102421A (en) |
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0
- US US102421D patent/US102421A/en not_active Expired - Lifetime
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