US133556A - Improvement in railroad-switch locks - Google Patents
Improvement in railroad-switch locks Download PDFInfo
- Publication number
- US133556A US133556A US133556DA US133556A US 133556 A US133556 A US 133556A US 133556D A US133556D A US 133556DA US 133556 A US133556 A US 133556A
- Authority
- US
- United States
- Prior art keywords
- lever
- bolt
- railroad
- switch
- 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
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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
Definitions
- Figurel is aface view of my improved railroad-switch lock.
- Fig. 2 is a vertical transverse section of the same on the line 0 c, Fig. 1.
- Fig. 3 is a top view of the upper bolt of the lock.
- This invention relates to a new means for locking the switch-levers on railroads automatically and eti'ectively.
- the invention -consists in providing the switch-lever with an upand-down adjustable transverse bolt, which will drop into notches of the arcs between which the lever can be moved.
- the invention also consists in combining with the aforementioned key a projecting ear on the lever, a vertical drop-bolt for looking into it, and an ordinary key for raising the drop-bolt and liberatin g the lever when desired.
- a in the drawing represents the switch-lever pivoted in a stationary frame, B, and guided between two arcs, O O, which are rigidly connected with the said frame B.
- D is a bolt fitted transversely through the lever A, and up and down adjustable in a slot, at, of said lever.
- the upper edges of the arcs O O are notched in a the places in which the switch-lever may have to be locked. Whenever the lever in being moved arrives in line with a set of such notches in the arcs the bolt D drops into the notches and locks the lever" thus automatically to the arcs in the manner indicated fli Fig. 1.
- E- is a box or case fastened to the side of one arch, (J, and containing a drop-bolt, b, and also a keyhole, at, for the admission of a key (not shown) for. raising the drop-bolt.
- a projecting ear 0, as shown in Fig. 2.
- the lever A arrives in the middle of the space between the arches, or wherever else it holds the rails in the normal ordinary position, it arrives also in line with the box or case E, and is moved toward the box in the recess of the arc, so that its ear 0 enters the box under the bolt b.
- the latter bolt drops into a notch of the ear 0, as shown in Fig. 2, and thus double locks the lever.
- the bolt b can be raised 011' the ear 6 to release the lever and allow it to be moved, provided the bolt D is also raised out of the notch.
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Train Traffic Observation, Control, And Security (AREA)
Description
J. 'L. ANDERSON.
Railroad Switch-Locks.
' Patented Dem-3,1872.
fay!
. Witmm:
UNITED STATES PATENT QFFICE.
JAMES L. ANDERSON, OF BUOYRUS, OHIO.
IMPROVEMENT IN RAILROAD-SWITCH LOCKS.
Specification forming part of Letters Patent No. 133,556,'dated December 3, 1872.
To all whom it may concern:
Be it known that I, JAMES L. ANDERSON, of Bucyrus, in the county of Crawford and State of Ohio, have invented a new and Improved Railroad-Switch Look, of which the following is a. specification:
Figurel is aface view of my improved railroad-switch lock. Fig. 2 is a vertical transverse section of the same on the line 0 c, Fig. 1. Fig. 3 is a top view of the upper bolt of the lock.
Similar letters of reference indicate corresponcling parts.
This invention relates to a new means for locking the switch-levers on railroads automatically and eti'ectively. The invention-consists in providing the switch-lever with an upand-down adjustable transverse bolt, which will drop into notches of the arcs between which the lever can be moved. The invention also consists in combining with the aforementioned key a projecting ear on the lever, a vertical drop-bolt for looking into it, and an ordinary key for raising the drop-bolt and liberatin g the lever when desired.
A in the drawing represents the switch-lever pivoted in a stationary frame, B, and guided between two arcs, O O, which are rigidly connected with the said frame B. D is a bolt fitted transversely through the lever A, and up and down adjustable in a slot, at, of said lever. The upper edges of the arcs O O are notched in a the places in which the switch-lever may have to be locked. Whenever the lever in being moved arrives in line with a set of such notches in the arcs the bolt D drops into the notches and locks the lever" thus automatically to the arcs in the manner indicated fli Fig. 1. E-is a box or case fastened to the side of one arch, (J, and containing a drop-bolt, b, and also a keyhole, at, for the admission of a key (not shown) for. raising the drop-bolt.- On the lever A is formed a projecting ear, 0, as shown in Fig. 2. Whenever the lever A arrives in the middle of the space between the arches, or wherever else it holds the rails in the normal ordinary position, it arrives also in line with the box or case E, and is moved toward the box in the recess of the arc, so that its ear 0 enters the box under the bolt b. The latter bolt drops into a notch of the ear 0, as shown in Fig. 2, and thus double locks the lever. By means of the key the bolt b can be raised 011' the ear 6 to release the lever and allow it to be moved, provided the bolt D is also raised out of the notch.
I Having thus described my invention,I claim as new'and desire to secure by Letters Patv ent- 1. The transverse bolt D, fitted through the vertical slot of theleverAto lock in the notched arcs G G, as set forth.
2. The combination of the lever A and bolt D with the ear 0 and drop-bolt b, all operating as specified.
JAMES LEWIS ANDERSON.
W'itnesses:
J. G. HALL, S. R. HARRIS.
Publications (1)
| Publication Number | Publication Date |
|---|---|
| US133556A true US133556A (en) | 1872-12-03 |
Family
ID=2202972
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US133556D Expired - Lifetime US133556A (en) | Improvement in railroad-switch locks |
Country Status (1)
| Country | Link |
|---|---|
| US (1) | US133556A (en) |
-
0
- US US133556D patent/US133556A/en not_active Expired - Lifetime
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