Tube feeding device for use in charging shotholes with explosive

Details Tube feeding device for use in charging shotholes with explosive Tube feeding device for use in charging shotholes with explosive

1976-08-13

1977-10-04

Brown, David H.

Advancing material of indeterminate length

By intermittent material-mover

Comprising reciprocating or oscillating material-mover

166 77, 86 20C, B65H 1738

Patent

active

040519880

ABSTRACT:
The apparatus includes two clamping devices mounted for vertical reciprocation one above the other, and having registering central apertures through which a flexible tube is adapted to be advanced. Each clamp contains a flexible sleeve disposed to surround the tube and selectively to be pressed into gripping engagement with it by means of a fluid pressure medium. This medium is also used to reciprocate the clamps alternately toward and away from each other, with only one clamp at a time being actuated so that the tube is advanced (e.g. fed upwardly) first by one and the other of the clamps.

REFERENCES:
patent: 2389556 (1945-11-01), Siegerist
patent: 3010568 (1961-11-01), Annegarn
patent: 3131776 (1964-05-01), Kvello-Aune et al.
patent: 3133469 (1964-05-01), Ljungberg
patent: 3474946 (1969-10-01), Desplats et al.
patent: 3665887 (1972-05-01), Worthing
patent: 3797570 (1974-03-01), Leutwyler
patent: 3819073 (1974-06-01), Asselborn et al.
patent: 3854645 (1974-12-01), Knights

Affiliated with

Also associated with

Rating

Tube feeding device for use in charging shotholes with explosive does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Tube feeding device for use in charging shotholes with explosive, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Tube feeding device for use in charging shotholes with explosive will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1771365