US274726A - Express-signal - Google Patents
Express-signal Download PDFInfo
- Publication number
- US274726A US274726A US274726DA US274726A US 274726 A US274726 A US 274726A US 274726D A US274726D A US 274726DA US 274726 A US274726 A US 274726A
- Authority
- US
- United States
- Prior art keywords
- signal
- express
- lever
- arms
- thumb
- 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
- 239000003086 colorant Substances 0.000 description 2
- 230000011664 signaling Effects 0.000 description 2
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61D—BODY DETAILS OR KINDS OF RAILWAY VEHICLES
- B61D41/00—Indicators for reserved seats; Warning or like signs; Devices or arrangements in connection with tickets, e.g. ticket holders; Holders for cargo tickets or the like
Definitions
- My invention consists of an improved form of express-signals in which the signal-arms are operated by means of levers and ratchets; and the object of my invention is to provide aconvenient and conspicuous mode of signaling for the various express companies, &c., to
- Figure l gives a side view of the express-signal, showing how it isoperated.
- A is the lever.
- B is the fulcrum of the lever.
- C is the line or chain connecting lever with signal-arm.
- D D are frictionrol1ers over which the line C works.
- E E show one signal-arm extended and the others lowered.
- F is aratchet holdingthe lever in place.
- Gr is the thumb-'piece for lowering the signal-arm.
- H is a spring at the back of the thumb-piece.
- Fig. 2 gives a perspective view of the express-signal with all the arms E lowered.
- Theexpress-signal box contains a number of arms painted in distinguishing colors, and bearing the names the arm to fall.
- the ratchet and .lever can bearranged to operate either from the front, rear, or side, as may be most convenient.
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- Engineering & Computer Science (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Electrotherapy Devices (AREA)
Description
(No Model.)
A. GRAAWF0RD.
EXPRESS SIGNAL.. No. 274,726.
Pamtea Man 21, 188s.
Zay/9.
KRS
SIG-NAL MEM/aww.
UNITED STATES PATENT OFFICE.
`AITGS CRAWFORD, OF BOSTON, MASSACHUSETTS.
EXPRESS-sle'NAL.
SPECIFICATION forming part of Letters Patent No. 274,726, dated `March 27,1883.
' Application meticuly 8,1882. (No model.)
To all whom it may concern.:
Be it known that I, ANeUs CRAWFORD, a subject of Great -Britaimresiding at Boston, in the county of Suffolk and State of Massachusetts, have invented anew and useful Improvement in Express-Sgnalmot' which the following Iis a specification, reference being had to the accompanying drawings, forming part thereof. v
My invention consists of an improved form of express-signals in which the signal-arms are operated by means of levers and ratchets; and the object of my invention is to provide aconvenient and conspicuous mode of signaling for the various express companies, &c., to
call.
In the accompanying drawings, Figure l givesa side view of the express-signal, showing how it isoperated. A is the lever. B is the fulcrum of the lever. C is the line or chain connecting lever with signal-arm. D D are frictionrol1ers over which the line C works. E E show one signal-arm extended and the others lowered. F is aratchet holdingthe lever in place. Gr is the thumb-'piece for lowering the signal-arm. H is a spring at the back of the thumb-piece.
Fig. 2 gives a perspective view of the express-signal with all the arms E lowered. A, lever-handles; G, thumb-pieces. Theexpress-signal box contains a number of arms painted in distinguishing colors, and bearing the names the arm to fall.
The ratchet and .lever can bearranged to operate either from the front, rear, or side, as may be most convenient.
Having fullyr described my invention, what I claim, and desire to secure by Letters Patent of the United States, is
1. An express-signal consisting of arms E, adapted to Work on one common pivot, and operated, by means of cords C, over rollers D D by levers A and ratchets F, substantially as described.'
2. In combination with an express-signal having arms E, the levers A,I rollers D D, cords C, ratchets F, and thumb-pieces Gr, substantially as and for the purpose described.
ANGUS CRAWFORD.
Witnesses:
FRANKLIN HEDGE, EDWIN J. BONE.
Publications (1)
| Publication Number | Publication Date |
|---|---|
| US274726A true US274726A (en) | 1883-03-27 |
Family
ID=2343956
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US274726D Expired - Lifetime US274726A (en) | Express-signal |
Country Status (1)
| Country | Link |
|---|---|
| US (1) | US274726A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4070775A (en) * | 1976-11-05 | 1978-01-31 | John Doyle Brooks | Road emergency sign |
-
0
- US US274726D patent/US274726A/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4070775A (en) * | 1976-11-05 | 1978-01-31 | John Doyle Brooks | Road emergency sign |
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