Reversing lead screw construction

Details Reversing lead screw construction Reversing lead screw construction

1975-11-17

1977-05-17

Scott, Samuel

Machine element or mechanism

Mechanical movements

Rotary to or from reciprocating or oscillating

F16H 2512

Patent

active

040234215

ABSTRACT:
A number of identical molded segments are brought together to form a stack. Each segment contains intersecting left and right-handed helical guideways, each guideway defining about one-half the pitch of a thread. Each adjacent identical segment is oriented with respect to each other adjacent segment to provide a substantially continuous left and right-handed helical guideway. Each adjacent identical half-pitch segment is oriented about 180.degree. out of phase with respect to each other adjacent identical segment. A minimum of two identical one-half pitch segments is required to provide a reversing lead screw.

REFERENCES:
patent: 2002657 (1935-05-01), Correll
patent: 2170930 (1939-08-01), Paterson
patent: 2347364 (1944-04-01), Palumbo
patent: 3115614 (1963-12-01), Habereder
patent: 3407262 (1968-10-01), Snyder, Jr.
patent: 3587994 (1971-06-01), Freed, Jr.
patent: 3885662 (1975-05-01), Schaefer

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