US131310A - Improvement - Google Patents
Improvement Download PDFInfo
- Publication number
- US131310A US131310A US131310DA US131310A US 131310 A US131310 A US 131310A US 131310D A US131310D A US 131310DA US 131310 A US131310 A US 131310A
- Authority
- US
- United States
- Prior art keywords
- switch
- jaws
- bolt
- sloan
- lever
- 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
- 210000001847 Jaw Anatomy 0.000 description 8
- 230000000694 effects Effects 0.000 description 2
- 230000002441 reversible Effects 0.000 description 2
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61L—GUIDING RAILWAY TRAFFIC; ENSURING THE SAFETY OF RAILWAY TRAFFIC
- B61L5/00—Local operating mechanisms for points or track-mounted scotch-blocks; Visible or audible signals; Local operating mechanisms for visible or audible signals
- B61L5/02—Mechanical devices for operating points or scotch-blocks, e.g. local manual control
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Toys (AREA)
- Food-Manufacturing Devices (AREA)
Description
W. B. SLOAN 8L E. H. SWEETSER.
lmprover'nent in Switch-Locks.
No. 131,310., Patented Sep. 10, 187.2.
/MRV
WILLIAM B. SLOAN AND EDWARD H. SWEETSER, OF HAMBURG, IOWA.
iM PROVEMENT iN SWITCH-LOCKS.
Spcciiieation forming part of ALetters Pat-ent No. lltl, dated September' l0, 1872.
Speciication describing a Railroad Switch- Fastening, invented by WILLIAM B. SLOAN and EDWARD H. SWEETsDR, of Hamburg, in'
the countyof Fremont and State of Iowa.
The invention consists in a railroad switchfastening, constructed with spring-jaws, which clamp the annular recess 0i' a bolt passed therethrough, and require to be separated by a he;r before the bolt can be removed.
Figure 1 is a side elevationof switch-stand; Fig. 2, a plan view thereof; and Fig. 3 is an inside view of the jaws of lock.
A in the drawing represents the frame which holds the slotted or hollow guide B. In this guide plays the switch-lever C, which is fulcrumed ate. E is the lock, that consists of two plates, e e, between which are the springjaws F F. These jaws have semicircular recesses f f, which clamp a bolt between them, and inclines f', against which the key turns, in order to hold them apart. In line with recesses f f of the jaws is a hole, b, which eX- tends through the side-plates e e and through the hollow guide B. In this hole is placed a bolt, G, having the annular recess g, in which the jaws F F become fastened.
The operation is as follows: The lever C bea ing brought into position, so that the switchrails joint with the track on which the next train is to pass,the boltGis inserted between the spring-jaws and through the guide B. This locks the lever and the switch-rails and prevents any change until the switchman comes around with his key and unlocks them. It is obvious that this lock may be rig-idly attached with equal effect to the lever or the stand, onel being merely a reversal ot' the other.
Having thus described our invention, what we claim as new, and desire to secure by Letters Patent, is-
A railroad switch-lock, E, provided with a pair of springjaws, F F, fastened between plates e e, and a` bolt, G, having a recess, g, the two adapted to be applied together in the manner described.
WILLIAM B. SLOAN. EDWARD H. SWEETSER.
YVitnesses to both signatures:
W. A. Srow, J. M. HAMMOND.
Publications (1)
| Publication Number | Publication Date |
|---|---|
| US131310A true US131310A (en) | 1872-09-10 |
Family
ID=2200727
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US131310D Expired - Lifetime US131310A (en) | Improvement |
Country Status (1)
| Country | Link |
|---|---|
| US (1) | US131310A (en) |
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0
- US US131310D patent/US131310A/en not_active Expired - Lifetime
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