Drill test fixture

Details Drill test fixture Drill test fixture

1987-04-10

1990-02-20

Noland, Tom

Measuring and testing

Testing of apparatus

73 11, G01M 1900

Patent

active

049015877

ABSTRACT:
A test fixture for comparing the performance characteristics of air feed drills includes a frame and a simulated linear thrust load. Included also is a peck counter, a linear transducer for measuring stroke length, and an rpm counter. These measurements are visually displayed and may be optionally used as inputs for the calculation of various operational ratios which may also be displayed.

REFERENCES:
patent: 1062662 (1913-05-01), Paynter
patent: 1576465 (1926-03-01), Pryce
patent: 2004950 (1935-06-01), Jenkins
patent: 2761307 (1956-09-01), Williams
patent: 2909922 (1959-10-01), Haman
patent: 3264873 (1966-08-01), Svenson
patent: 4123187 (1978-10-01), Turner
patent: 4164871 (1979-08-01), Cole et al.
patent: 4693122 (1987-09-01), Griffith

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