Grooved clamping arm for drafting table

Details Grooved clamping arm for drafting table Grooved clamping arm for drafting table

A - Human Necessities

47

B

311/14

A47B 11/00 (2006.01) A47B 27/18 (2006.01)

Patent

CA 1234181

ABSTRACT OF THE DISCLOSURE Disclosed is an improved clamping arm for drafting tables having two rotatable cylindrical members, The clamping arm must permit the cylindrical members to be either rotatably journalled therein or securely clamped against rotation, In the improved clamping arm, apertures to receive the cylindrical members are provided with circumferen- tially spaced grooves to increase flexibility and facilitate improved resilient deformation of the clamping arm to simul- taneously clamp on both cylindrical members.

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