Heritage Community Foundation Presentss
Alberta Online Encyclopedia
Alberta Inventors and Inventions - A Century of Patents homeinfosearchsitemapcontactedukit
inventors
inventions
innovation
patents

     

Heritage Community Foundation
Alberta Innovation and Science
Canada's Digital Collections
Visit AlbertaSource.ca

Shot Firing Device (Patent No: 251360)

Inventor: deHart, Joseph Bertram

Location: Lethbridge

Comments: N/A

Description: WHAT I CLAIM AS MY INVENTION IS:

1. A shot firing device comprising a tubular member, a pair of contacts mounted in the tubular member and insulated therefrom and from each other, a nonconducting contact bearing member carrying contacts adapted to successively engage the contacts of the tubular member as they are thrust one within the other, and shot firing wires connected to the contacts of the contact bearing member.

2. A shot firing device comprising a tubular member, a pair of contacts mounted in the tubular member and insulated therefrom and from each other, a nonconducting contact bearing member carrying contacts adapted to successively engage the contacts of the tubular member as they are thrust one within the other, and shot firing wires connected to the contacts of the contact bearing member, and means for preventing outward flashing as the contacts engage.

3. A shot firing device comprising a tubular body having a screened and vented upper chamber and an open ended lower chamber, a pair of electrical contacts carried in the lower chamber and adapted for connection to an ignition battery, a connector rod of substantially s1milardiameter to the lower chamber adapted for insertion into the lower chamber and having electrical contacts corresponding to those in the lower chamber, and means for connecting a pair of shot firing wires to the connector.

4. A shot firing device comprising a tubular body having a screened and vented upper chamber and an open ended lower chamber, a pair of electrical contacts carried in the lower chamber and adapted for connection to an ignition battery. a connector rod of substantially similar diameter to the lower chamber adapted for insertion into the lower chamber and having electrical contacts corresponding to those in the lower chamber, means for connecting a pair of shot firing wires- to the connector, and means for discharging the air normally residing in the lower chamber through the vented upper chamber as the connector rod is thrust into the tubular body.
5. A shot firing device comprising a tubular body having an open ended lower chamber, a pair of electrical contacts carried in the lower chamber and adapted for connection to an ignition battery, a connector rod of substantially similar diameter to the lower chamber adapted for insertion into the lower chamber, a pair of electrical contacts corresponding to those in the lower chamber, means for connecting a pair of shot firing wires to the connector contacts, means for forming connection between one contact in the lower chamber and the corresponding contact of the rod when the rod is partially thrust into the tubular body, and for forming a yielding connection between the remaining pair of contacts as the rod is thrust to its ultimate position within the hollow body.

6. A shot firing device comprising a tubular body adapted for attachment to an ignition battery, a screened upper chamber and an open ended lower chamber to the body, insulated contacts adapted for connection from the battery disposed within the lower chamber, an air communication between the lower chamber and the upper chamber, a connector rod adapted for sliding movement within the lower chamber and having electrical contacts at one end for engaging the first named contacts when the rod is thrust into the hollow body, and means at the opposite end of the rod for connection to a pair of shot firing wires.

[<<back]


Albertasource.ca | Contact Us | Partnerships
For more on innovation and invention in Alberta , visit Peel’s Prairie Provinces.
Copyright © Heritage Communty Foundation All Rights Reserved