Supports – Armrest or headrest – Armrest for writer
Patent
1984-06-08
1986-01-14
Britts, Ramon S.
Supports
Armrest or headrest
Armrest for writer
269322, B68G 500
Patent
active
045641641
ABSTRACT:
Two metal blocks, each having a cylindrical passage containing a rod, and a slot extending from one side to the cylindrical passage, also have a hole extending across the slots. A threaded member passes through the hole in one block and into threads contained in the other block beyond the slot. A compression head is mounted on the other end of the threaded member and is provided with a handle. When the handle is turned to advance the threaded member, the slots tend to close somewhat preventing movement of the rods in the blocks. When the threaded member is withdrawn slightly, the rods can be moved to desired positions relative to the blocks and the blocks can be rotated relative to each other.
REFERENCES:
patent: 2618451 (1952-11-01), Campo
patent: 3298074 (1967-01-01), Kedem
patent: 4432525 (1984-02-01), Duval
Allen R. Daniel
Fink Howard F.
Britts Ramon S.
Quist Raymond H.
Ramirez Ramon O.
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