Abrasive tool making process – material – or composition – With carbohydrate or reaction product thereof
Patent
1990-02-27
1991-10-15
Rose, Robert A.
Abrasive tool making process, material, or composition
With carbohydrate or reaction product thereof
51181NT, 51 73R, 51170PT, 51290, 1510404, 151041R, B24B 512
Patent
active
050562657
ABSTRACT:
A tool for abrading tube ends and fittings is described. The device includes an elongated handle enclosing a battery and driver. A reducer is also supplied at the top end of the handle for tranmitting and reducing rotary velocity of the driver to rotational motion of a pair of abrader heads. The preferred driver is a worm and worm wheel arrangement. The worm wheels are connected to paired, parallel shafts. Forward ends of the shafts mount abrader heads, each including a removable sleeve mounted abrasive member formed in a torus configuration for receiving a tube end. A reamer may be releasably mounted within one or both of the abrader heads to selectively engage and ream the tube end. A male abrader is mountable to the top end of the handle for connection to the driver. It includes a dome shaped abrasive member mounted to a shank for a selective attachment and detachment from the device. The handle and shaft are configured, along with the driver and reducer, to reduce dimensions of the unit and facilitate its use in confined quarters.
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