Classifying – separating – and assorting solids – Sorting special items – and certain methods and apparatus for... – Condition responsive means controls separating means
Patent
1987-07-27
1989-10-31
Reeves, Robert B.
Classifying, separating, and assorting solids
Sorting special items, and certain methods and apparatus for...
Condition responsive means controls separating means
10162A, 209626, 209655, 209929, 414224, B07C 504
Patent
active
048771384
ABSTRACT:
An apparatus for measuring the elevation of the head of a flush head countersunk fastener (e.g., a bolt or a rivet) before installation, is disclosed. Fasteners (21) to be measured are dropped, one at a time, into a precisely sized hole (69a or 69b) in a split gauge block (63) such that the heads of the fasteners protrude above the upper surface of the gauge block. The magnitude of head protrusion or elevation above the upper surface of the gauge block is measured by a head elevation measuring instrument (43). If the measured value lies within an acceptable range, a signal suitable for use in controlling the countersink depth of the hole that is to receive the fastener is produced and the fastener is forwarded to a fastener insertion machine. If the measured value lies outside of the acceptable range, the fastener is rejected. Fasteners (21) leave the measuring apparatus by vertically aligning the hole (69a or 69b) in the split gauge block (63) with either a fastener insertion machine delivery tube (203b) or a rejection tube (203a), depending upon whether the fastener head elevation lies inside or outside the acceptable range. After the split guage block hole (69a or 69b) is aligned with the appropriate tube, the gauge block is split, resulting in the fastener dropping into the aligned tube and being transported to either the fastener insertion machine or a rejection bin.
REFERENCES:
patent: 1959867 (1934-05-01), Lafferty et al.
patent: 2111252 (1938-03-01), Sommers
patent: 2156822 (1939-05-01), Smith
patent: 2291572 (1942-07-01), Davis
patent: 2354419 (1944-07-01), Lingerfelt et al.
patent: 2390012 (1945-11-01), Timm et al.
patent: 2427410 (1947-09-01), Krasa
patent: 2493147 (1950-01-01), Kasper
patent: 2566756 (1951-09-01), Wiseman
patent: 2768743 (1956-10-01), White
patent: 2781126 (1957-02-01), Wood
patent: 2790548 (1957-04-01), Scherer
patent: 2880868 (1959-04-01), Abbott
patent: 3168196 (1965-02-01), Harder
patent: 3417476 (1968-12-01), Martens
patent: 3650397 (1972-03-01), Bornemeier
patent: 3709328 (1973-01-01), Mohr et al.
patent: 3739908 (1973-06-01), Gunther
patent: 3743093 (1973-07-01), Klancnik
patent: 3855708 (1974-12-01), Tann et al.
patent: 4008805 (1977-02-01), Goerke et al.
patent: 4090610 (1978-05-01), Luginbahl
patent: 4341311 (1982-07-01), Gold et al.
Hajec Donald T.
Reeves Robert B.
The Boeing Company
LandOfFree
Fastener head elevation measuring apparatus does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Fastener head elevation measuring apparatus, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Fastener head elevation measuring apparatus will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-621379