The invention relates to a method for determining the number of active diamonds on a conditioning disk. In particular, the method comprises (a) contacting a diamond conditioner disk with a hard surface, wherein the diamond-containing side of the diamond conditioning disk is facing the hard surface, (b) moving the diamond conditioner disk under a load across the hard surface so as to cause any active diamonds present on the diamond-containing side of the diamond conditioner disk to leave a mark c...

A device for marking or identifying a female recess tool for clamping a mobile element (such as a nut), characterized in that it is adapted to be completely inserted in the female recess and maintained therein by frictional forces. It is then easy to identify, for example, features peculiar to the tool.

A driving tool includes a tool stem having a non-circular spatial engaging member and having one or more flat surfaces, a tool shank having a non-circular socket opening and having one or more curved surfaces for pivotally receiving the spatial engaging member of the tool stem and for allowing the tool shank to be selectively tilted relative to a longitudinal axis of the tool stem. A control ferrule is slidably engaged onto the tool shank and slidable and engageable onto the tool stem for retain...

A hammer equipped with a mallet attachment and a measuring scale. The mallet attachment includes a surface cap for covering the striking surface of the hammer such that the hammer is visible as a mallet which provides a resilient surface. A surface cap holder stores the surface cap when using the hammer. The measuring scale is located on a grip which surrounds a hammer shank. The hammer functions as both a hammer and a mallet.

The present disclosure relates to a rotating brush driving control apparatus. The rotating brush driving control apparatus includes a supporting bracket disposed in a suction brush assembly; a moving member slidably and elastically disposed in the supporting bracket; a lever disposed above a driving belt, the lever having an end rotatably disposed at a side of the supporting bracket; a tension spring elastically connecting the moving member and the lever; and a locking member disposed below the ...

A belt sander is disclosed that may include a sanding assembly having a first roller and a second roller, the sanding assembly being configured to receive a sanding belt around the first roller and the second roller to define a sanding surface therebetweeen. The belt sander may include a motor operationally coupled to the sanding assembly and opposite the sanding surface, the motor being configured to rotate at least the first roller and thereby rotate the sanding belt around the first roller an...

A hand operated tool for extracting an embedded elongated object, includes: a) an elongated, movable first handle member with a first, upper end portion divided into two matching legs separated by an opening; b) a corresponding second handle member with a first jaw member and a first, upper end extending through the leg opening, the second handle member being pivotally attached to both legs; c) a floating head portion pivotally attached to the first and second legs, the floating head portion inc...

A planetary drive head for treating floors having a hub that rotates in one direction and attached media gears that rotate in the opposite direction.

An apparatus (20) for cleaning a surface (22) includes a clean fluid tank (26) containing a cleaning fluid (46) and configured for delivery of the fluid (46) to the surface (22). The clean fluid tank (26) has a first outer surface (76). A waste fluid tank (30) is coupled with the clean fluid tank (26) and has a second outer surface (78). The second surface (78) abuts the first surface (76) to form a conduit (84) between the first and second surfaces (76, 78), the conduit (84) being in fluid comm...

Rotary pliers include a guide tube having a guide tube wall and a guide tube longitudinal axis and a guide tube proximal end connected to a radially protruding tube rotation lever and having a tube distal end with a distally protruding plier outer jaw radially spaced from the guide tube longitudinal axis; and a torque transmission shaft rotatably retained within the guide tube having a shaft proximal end connected to a radially protruding shaft rotation lever adjacent to the tube rotation lever ...