Patent US-1883-277990
System for halting progress of train via electric switch
"The object of my invention is the construction of an apparatus by means of which a rail road station-master can almost immediately signal one or more trains to stop, though they may be at any point between his station and the next. It often happens that by some means a train is allowed to pass a station at which, to prevent a collision or some other disaster, the said train should have been stopped. The station-master may be fully aware of the inevitable smash-up; but when the cars have swept by he is powerless to avert the disaster. Were my electric train-arrester in use upon the railroad. he would, however, be able to signal and stop the nearing trains. My invention consists, essentially, of a sloping spout or chute, the lower end of which is fixed to one rail of the track, a torpedo retained near the upper end of said chute by a stop, an electro-magnet controlling said stop, and wires joining said magnet to a battery."
- Tech class CPC B61L5/203: Detonators; Track mounting means; Composition of the detonative product
- Inventor location: Peoria, Peoria county, IL (FIPSloc=17143, imputed by HistPat)
- PTO 89-1.51
- Signed off by inventor Oct 30, filed with patent office Dec 6; not sure why this delay
Sources
- Patent 277990 document and bibliographic info on espacenet
- Patent 277990 at google patents
| Year filed | 1882 |
|---|---|
| Year granted | 1883 |
| Office | US |
| Patent number | 277990 |
| Inventors | Harry W. Carlton |
| Inventor country | US |
| Inventor location | |
| Applicant person | Harry W. Carlton |
| Applicant firm | |
| Applicant type | INDIV |
| Applicant is inventor? | 1 |
| Original title | Electric train-arrester |
| English title | Electric train-arrester |
| Tech fields | electronics, brakes |
| Filing date | 1882-12-06 |
| Full specification filed date | |
| Application number | |
| Grant date | 1883-05-22 |
| Granted? | 1 |
| Publication date | |
| Supplementary to patent | |
| Related to aircraft? | 1 |
| Serial number | |
| Patent agent | A. B. Upham |
| Assigned to | |
| National tech categories | USPC 246/211, USPC 246/212, USPC 89/1.51 |
| IPCs | IPC B61L5/00 |
| CPCs | CPC B61L5/203 |
| Family year | 1882 |
| First filing? | 1 |
| Cites these patents | |
| Citations from after 1930 | 1 |
| Application ID | |
| INPADOC family ID | |
| Number of text pages | 2 |
| Number of diagram pages | 1 |
| Number of figures | 2 |
| Number of claims | 5 |
