US15698A - Metallic car-spring - Google Patents
Metallic car-spring Download PDFInfo
- Publication number
- US15698A US15698A US15698DA US15698A US 15698 A US15698 A US 15698A US 15698D A US15698D A US 15698DA US 15698 A US15698 A US 15698A
- Authority
- US
- United States
- Prior art keywords
- spring
- springs
- box
- car
- metallic
- 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
- 230000036633 rest Effects 0.000 description 6
- 239000000203 mixture Substances 0.000 description 4
- 229910000639 Spring steel Inorganic materials 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 2
- 210000004722 Stifle Anatomy 0.000 description 2
- 238000005452 bending Methods 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61F—RAIL VEHICLE SUSPENSIONS, e.g. UNDERFRAMES, BOGIES OR ARRANGEMENTS OF WHEEL AXLES; RAIL VEHICLES FOR USE ON TRACKS OF DIFFERENT WIDTH; PREVENTING DERAILING OF RAIL VEHICLES; WHEEL GUARDS, OBSTRUCTION REMOVERS OR THE LIKE FOR RAIL VEHICLES
- B61F5/00—Constructional details of bogies; Connections between bogies and vehicle underframes; Arrangements or devices for adjusting or allowing self-adjustment of wheel axles or bogies when rounding curves
- B61F5/26—Mounting or securing axle-boxes in vehicle or bogie underframes
- B61F5/30—Axle-boxes mounted for movement under spring control in vehicle or bogie underframes
- B61F5/301—Axle-boxes mounted for movement under spring control in vehicle or bogie underframes incorporating metal springs
- B61F5/302—Leaf springs
Definitions
- this spring is such that as the load increases on the plate f, f, the springs are compressed, bending over the curves of the bottom plate at a, b, bringing the bearing nearer the circumference or base of the spring.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Springs (AREA)
- Vibration Prevention Devices (AREA)
Description
0. JOHNSON.
Car Spring.
Patented Sept. 9, I856;
'Nmsrsns, PHOTO-UTHOGRAPHER, WA
UNITED STATES PATENT OFFICE.
DANFORTH JOHNSON, OF CHICAGO, ILLINOIS.
METALLIC CAR-SPRING.
Specification of Letters Patent No. 15,698, dated September 9, 1856.
17 '0 all whom it may concern I Be it known that I, DANFORTH JOHNSON, of the city of Chicago, in the county of Cook and State of Illinois, have invented a new and Improved Mode of Constructing Springs for Railway-Cars and other Purposes; and I do hereby declare that the following is a full and exact description thereof, reference being had to the accompanying drawings and to the letters of reference marked thereon.
The nature of my invention consists in arranging any number of steel springs in a metallic box of a circular, square, or polygonal form, the base of the springs secured by a metallic flange firmly secured to the box. The springs afe cut in radiating leaves, the central parts elevated in a conical form around a fixed stud or pillar in the center of the box. A metallic plate rests on the elevated central parts of the spring, and upon this plate the carriage or car rests or has its bearing.
To enable others skilled in the art to make and use my invention, I will proceed to describe its construction and operation, reference being had to the accompanying draw ings, where- Figure 1, represents a top view, and sectional elevation of a circular plate of spring steel; Fig. 2, a section of the spring fitted in its box, the springs slightly compressed; Fig. 3, a similar section showing the springs compressed to their maximum tension; Fig. 4:, represents a top view of the spring fitted in the box.
a, b, on Figs. 2 and 3, is a section of the bottom plate of the box, the upper surface convex and elevated above the base of the springs as shown by the curve lines at a, and b, c, 0, represents the cap or flange securing the base of the springs in the box, by'means of the screw bolts cZ, cl, 6, represents the central stud or pillar, and f, f,.the follower or plate on which the load rests.
The operation of this spring is such that as the load increases on the plate f, f, the springs are compressed, bending over the curves of the bottom plate at a, b, bringing the bearing nearer the circumference or base of the spring.
The advantages of this spring are that the elasticity is equalized in heavy or light loads by the peculiar tapering form of each leaf of the spring, as the load is increased the bearing passes outward to the broader and stifl'er parts of the spring; secondly the small space that powerful springs may 00- cupy; thirdly, their simplicity and durability, and being easily repaired or renewed.
What I claim as my invention and desire to secure by Letters Patent is 1. The combination and arrangement of a number of springs radiating from a central stud, and secured at the circumference, or rim, to a box or bed plate.
2. I also claim the arrangement of the convex bed plate a, Z), over which the springs bend, in combination with the stud or pillar e, to resist the lateral motion of the car, or carriage, the whole combined and arranged substantially as set forth in the above specification.
DANFORTH JOHNSON.
Witnesses:
JOHN M. WILSON, N. B. YoUNes.
Publications (1)
Publication Number | Publication Date |
---|---|
US15698A true US15698A (en) | 1856-09-09 |
Family
ID=2076705
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US15698D Expired - Lifetime US15698A (en) | Metallic car-spring |
Country Status (1)
Country | Link |
---|---|
US (1) | US15698A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2727117A (en) * | 1953-08-10 | 1955-12-13 | Jack & Heintz Inc | Electric regulator |
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0
- US US15698D patent/US15698A/en not_active Expired - Lifetime
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2727117A (en) * | 1953-08-10 | 1955-12-13 | Jack & Heintz Inc | Electric regulator |
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