A marking and measuring tool has a set of channels in which a bar may be slid. The channels extend from a flat side face adapted to be placed flush against a side of a work piece with one side of each channel extending towards a common line located in the plane of the side face.

A trailer hitch guide constructed in accordance with the present invention mounts a base upon the vehicle hitch and a pair of detachably, mountable, lateral guides are attachable to the base for projecting rearwardly therefrom. A first cam surface is provided which is connectable to said base and a second cam surface is connectable to the trailer tongue. The first and second cam surfaces are formed to cooperate to cause relative vertical displacement between the vehicle hitch and the trailer ton...

The present invention resides in a collapsible level comprising a first segment; at least one additional segment, physically independent of the first segment and operable with the first segment to form the level; a leveling vial supported in at least one of the segments; and a linking member operable with the segments to permit the segments to be assembled and to secure an assembled relationship between the segments, as well as to maintain a connection between the segments when disassembled. In ...

A carpenter's square that can have the arms thereof separated for ease of storage and joined together during use includes a over-center latch arrangement designed to be no thicker than the thickness dimension of the arm members and which, when operated, tightly clamps the arms of the square at right angles to one another. A first arm of the square has an opening formed through the thickness dimension thereof along with alignment bores extending inwardly from a side edge thereof on either side of...

Disclosed is a process for preparing a polyorganosilane which comprises subjecting a disilane compound having at least two substituted or unsubstituted hydrocarbyloxy groups in one molecule to disproportionation reaction in the presence of a catalyst comprising a reaction product of an organic alkali metal compound represented by the formula (I): wherein R represents a substituted or unsubstituted monovalent hydrocarbon group; and M represents an alkali metal, represented by the formula (III): w...

An adjustable straight edged device for use with a drafting board includes a straight edged blade which is adjustable to different angular orientations on the drafting board and is positively and precisely aligned in a horizontal orientation across the board. The device includes a platform slidably mounted for movement along one side of the drafting board on which the blade is mounted. The platform includes a pivot pin and preferably guide pins which are disposed to respectively, engage an elong...

A method for imparting corrosion resistance to a metal substrate comprising coating said substrate with a moisture-curable silicone composition is disclosed. The composition consists essentially of a tetrafunctional or hexafunctional silicone polymer (I) which is modified with a liquid organohydrogenpolysiloxane (II) such that, when the functional groups of (I) are alkoxy radicals, the organohydrogenpolysiloxane contains at least 4 silicon hydride groups per molecule and when the functional grou...

The invention relates to a process for the preparation of polymeric chlorosilazanes by reaction of oligomeric silazanes with chlorosilanes under at least 30 bar at 250.degree. to 400.degree. C.

A marking and measuring tool has a set of channels in which a bar may be slid. The channels extend from a flat side face adapted to be placed flush against a side of a work piece with one side of each channel extending towards a common line located in the plane of the side face.

A system and method are provided to fabricate thin-films having different physical property parameters or having physical property parameters that continuously change across functionally broadband monolithic device arrays. The fabrication method deposits the thin-film including layers on a substrate of a monolithic chip. The method defines a desired gradient profile of each layer forming the thin-film, each gradient profile including a desired thinnest profile and a desired thickest profile. The...