US192703A - Improvement in spiral car-springs - Google Patents
Improvement in spiral car-springs Download PDFInfo
- Publication number
- US192703A US192703A US192703DA US192703A US 192703 A US192703 A US 192703A US 192703D A US192703D A US 192703DA US 192703 A US192703 A US 192703A
- Authority
- US
- United States
- Prior art keywords
- spiral
- springs
- improvement
- spring
- car
- 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
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F1/00—Springs
- F16F1/02—Springs made of steel or other material having low internal friction; Wound, torsion, leaf, cup, ring or the like springs, the material of the spring not being relevant
- F16F1/04—Wound springs
- F16F1/06—Wound springs with turns lying in cylindrical surfaces
Definitions
- si'le elevation of a'spiral Fig. 2 is a transverse section of one of the coils, taken on line a: w in Fig. l.
- the invention consists in a car-spring of the peculiar form hereinafter described.
- the object of the invention is to provide a spring that will yield to lateral strain without .breaking, and that will atl'ord the greatest possible amount of resistance to downward pressure.
- A represents a spiral spring made from a metallic bar, whose cross-section is shown in Fig. 2.
- the exterior surface a is convex, and the interior ones I) c more or less concave, while the upper and lower edges 0 d ofeach spiral are rounded off.
- the spring thus formed is capable of resisting a great amount of pressure, while it is also capable of yielding laterally, and as the coils overlap each other they are mutuallysupported.
Description
J. LUDLUM.
SPIRAL CAR-SPRING.
N 192,703. Patented July 3,1877.
illllllllII III 7' I if:
ATTORNEYS.
UNITED STATES PATENT Q E G JAMES LUDLUM, OF P'oMP oN, NEW JE sEY.
IMPROVEMENT IN SPIRAL CAR-SPRINGS.
Specification forming part of Letters Patent No. 192,703, dated July 3, 1877; application filed May 28, 1877.
si'le elevation of a'spiral Fig. 2 is a transverse section of one of the coils, taken on line a: w in Fig. l.
Similar letters of reference indicate correspondin g parts.
The invention consists in a car-spring of the peculiar form hereinafter described. The object of the invention is to provide a spring that will yield to lateral strain without .breaking, and that will atl'ord the greatest possible amount of resistance to downward pressure.
In Fig. 1, A representsa spiral spring made from a metallic bar, whose cross-section is shown in Fig. 2. The exterior surface a is convex, and the interior ones I) c more or less concave, while the upper and lower edges 0 d ofeach spiral are rounded off.
It is obvious that the spring thus formed is capable of resisting a great amount of pressure, while it is also capable of yielding laterally, and as the coils overlap each other they are mutuallysupported.
Should the spring at any time be subjected to sudden diagonal strains the peculiar form of the surfaces that come into contact render it impossible for one coil to engage another so positively as to cause the spring to break.
Having thus fully described my invention, I claim as new and desire to secure by Letters Patent- The spiral spring A, provided with convex outer surface a, interior concave surfaces 1) e, and rounded edges 0 d, as and for the purpose specified.
' JAMES LUDLUM.
Witnesses:
. O. SEDG-WIGK,
ALEX. F. ROBERTS.
Publications (1)
| Publication Number | Publication Date |
|---|---|
| US192703A true US192703A (en) | 1877-07-03 |
Family
ID=2262109
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US192703D Expired - Lifetime US192703A (en) | Improvement in spiral car-springs |
Country Status (1)
| Country | Link |
|---|---|
| US (1) | US192703A (en) |
-
0
- US US192703D patent/US192703A/en not_active Expired - Lifetime
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US192703A (en) | Improvement in spiral car-springs | |
| US31560A (en) | Arrangement of carriage-springs | |
| US231150A (en) | Car-spring | |
| US214329A (en) | Improvement in car-springs | |
| US1130219A (en) | Flexible spring-coupling. | |
| US577163A (en) | Wagon-spring | |
| US857054A (en) | Seat-spring. | |
| US406408A (en) | Vehicle-spring | |
| US349541A (en) | Vehicle-spring | |
| US191361A (en) | Improvement in car-springs | |
| US327518A (en) | Vehicle-spring | |
| US40603A (en) | Improvement in vehicle-springs | |
| US179097A (en) | Improvement in car-springs | |
| US166060A (en) | Improvement in vehicle-springs | |
| US118648A (en) | Improvement in check-springs for vehicles | |
| US1145304A (en) | Yielding support. | |
| US200884A (en) | Improvement in car wheels and axles | |
| US855064A (en) | Vehicle. | |
| US747276A (en) | Spring-hinge. | |
| US578874A (en) | Buggy-spring | |
| US302618A (en) | Carriage-spring | |
| US558399A (en) | Locomotive-truck spring-hanger | |
| US146100A (en) | Improvement in vehicle-springs | |
| US301480A (en) | Vehicle-spring | |
| US304606A (en) | James m |