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US Patent: 1,589,855
Sectional Grinding Wheel
Elwin R. Hyde - Bridgeport, Fairfield County, CT

USPTO Classifications:

Tool Categories:
industrial tools : grinding wheels


Not known to have been produced

none listed

Patent Dates:
Applied: Mar. 10, 1925
Granted: Jun. 22, 1926

Patent Pictures:
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"Vintage Machinery" entry for Bridgeport Safety Emery Wheel Co.

This invention relates to sectional grinding wheels, particularly of the type disclosed in my prior Patent #1,133,475 issued March 30, 1915, and has for an object to provide an improved means for securing the adjusting screws in the holder to facilitate changing of the blocks or the mounting of new blocks, to thus reduce to a minimum the time required for renewing the blocks after they have worn out and the time in which the machine must remain idle.


A grinding wheel comprising a support having spaced flanges and perforations between said flanges, a plurality of separate grinding blocks mountable between the flanges, means for adjusting the positions of the blocks comprising a screw having threaded engagement with the blocks and having heads by which they may be rotated, said heads being adapted to be freely inserted through said perforations so as to be rotatable therein, a locking device on the support arranged to prevent longitudinal movement of the screw when so rotated to permit of adjustment of the block thereby, said device being movable to an ineffective position to allow such insertion and removal of the screw whereby the screw can be inserted into the block before assembly of the block in the support.

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