Metal working – Means to assemble or disassemble – With work-holder for assembly
Patent
1991-04-22
1992-12-08
Swann, J. J.
Metal working
Means to assemble or disassemble
With work-holder for assembly
292815, 269 43, B25B 2714
Patent
active
051686171
ABSTRACT:
An axially centering apparatus for fusion-bonding optical fibers comprising a pair of guides having long grooves on the upper surfaces thereof for engaging optical fibers, a pair of fulcra formed in parallel with the long grooves of the guides for supporting the guides, a pair of centering stands having substrates for supporting the fulcra, a pair of centering mechanisms having load imparting mechanism sections having telescopic output ends, load imparting mechanism sections, and transmitting mechanism sections for the adjusting mechanism sections so that the long grooves of said centering stands are disposed adjacent to each other to align in a rectilinear line, said centering mechanisms are associated with the centering stands to contact the output ends of the centering mechanisms with the guides of the centering stands, wherein said one centering stand satisfies the conditions that the fulcrum 3A and the long groove 4A are relatively positioned so that the crossing angle .alpha. (alpha) between a line segment AL.sub.1 and a perpendicular AL.sub.2 becomes 45.degree., where AO.sub.1 is the center of the fulcrum as seen from the plane perpendicular to the long groove, AO.sub.2 is the center of the long groove, AL.sub.1 is the line segment passing the centers AO.sub.1 and AO.sub.2, and AL.sub.2 is a perpendicular passing the center AO.sub.1 of the long groove, and similarly, the other centering stand satisfies the conditions that the crossing angle .beta. (beta) between a line segment LB.sub.1 and a perpendicular AL.sub.2 becomes 45.degree., where BO.sub.1 is the center of the fulcrum, BO.sub.2 is the center of the long groove, BL.sub.1 is the line segment passing the centers BO.sub.1 and BO.sub.2, and BL.sub.2 is a perpendicular passing the center BO.sub.1 of the long groove, and the pair of centering stands disposed adjacent to each other are perpendicularly crossed at both line segments AL.sub.1 and BL.sub.1, and the output ends of the pair of centering mechanisms are disposed on the same plane to be contacted with the guides of the centering stands.
REFERENCES:
patent: 2428958 (1947-10-01), Bohaboy et al.
Kajitani Shuji
Takahashi Tomoki
Tsuchida Yoshio
Swann J. J.
The Furukawa Electric Co. Ltd.
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