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Rock drill feed support
   
Document Number
US Patent 5050688
Issued Date
September 24, 1991
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Abstract
A rock drill feed support beam comprises longitudinal side plates and a base member which are formed of folded metal plate welded together to form a channel-like support beam with a substantially clear unobstructed space between the members for containing a plurality of pressure fluid hoses which are trained over a hose guide supported by the feed beam and also disposed generally between the side members in the space. A feed mechanism comprising an endless chain is disposed in the channel-like space and includes a support member connected to the hose guide and supporting spaced apart sprockets. One run of the chain is connected to the drill motor and the opposite run of the chain is anchored to the feed beam. A motor is drivably connected to the chain through one of the sprockets for advancing the drill motor at twice the rate of the hose guide and the feed support member.
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Rock drill feed support - US Patent 5050688 Drawing
Drawing from US Patent 5050688
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Number of Claims:
13
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Owner
Published
September 24, 1991
Application Number
07/440,018
Filed
November 21, 1989
US Classification
173/147   173/160
Int'l Classification
E21B   7/02   (20060101)   E21B   19/084   (20060101)   E21B   19/00   (20060101)  
Assistant Examiner
Attorney/Law Firm
USPTO Field of Search
173/31   173/37   173/39   173/44   173/147   173/152   173/154   173/160  
Related Patents
5778988 - Drilling apparatus

Drilling apparatus which comprises support structure mounted guide tracks which extend in a drilling direction. A rotating and pushing unit is mounted on said guide tracks for movement in the drilling direction. The apparatus is provided with a series of members for adjusting the height of the rotating and pushing unit in relation to the guide tracks, the members extending in the drilling direction and allowing the rotating and pushing unit to glide in the drilling direction.

Claims
Description
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