Metal working – Means to assemble or disassemble – Puller or pusher means – contained force multiplying operator
Patent
1977-07-14
1978-10-03
Jones, Jr., James L.
Metal working
Means to assemble or disassemble
Puller or pusher means, contained force multiplying operator
B23P 1704
Patent
active
041175816
ABSTRACT:
Three jaws are pivoted to a head carrying the pressure screw or bolt. One jaw is pivotally secured to one side of the head and the other two jaws are normally situated at 120.degree. one upon each side of the first jaw and are also pivotally secured to the head. Means are provided to move these two jaws to a position in spaced and parallel relationship opposite to said first jaw and also to swing the first jaw between these two jaws so that the puller can be used as an internal puller. This movement can be achieved either by unbolting the two jaws and re-positioning same or using a U-bolt attachment which permits the two jaws to be slid from one position to another thus enabling the puller to be used as a two or three-jaw puller and upon external or internal objects to be pulled.
REFERENCES:
patent: 1394129 (1921-10-01), Wickerham
patent: 1688535 (1928-10-01), Ellis et al.
patent: 2188074 (1940-01-01), Condon
Ade Stanley G.
Jones Jr. James L.
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