Traversing hoists – With haul-in line
Patent
1991-04-11
1991-12-24
Basinger, Sherman
Traversing hoists
With haul-in line
212133, 212134, 212147, 254311, 254358, B66C 1116
Patent
active
050744232
ABSTRACT:
A low-profile lifting apparatus (10) for hoisting and moving objects along an I-beam (12), comprising a frame assembly (20), a drive system (44), a pulley assembly (56), and a hoist assembly (66). The drive system (44) includes a first drive roller (48), and a second drive roller (49) operatively connected to each other and positioned on opposite sides of the web (14) to drive the lifting apparatus (10) along the lower flange (16). The drive mechanism (50) includes a pulley chain (62) that is manually pulled by an operator to rotate the drive shaft (60) and the attached drive rollers (48) and (49). A block (74) has a hook (76) positioned laterally on one side of the lateral centerpoint (82) nearest the chain hoist (68). The load chain (86) passes downward from the frame assembly (20) to the pulley wheel (78), then back to the frame assembly (20), and laterally beneath the lower flange (16) to the frame assembly (20), then down to the pulley wheel (80) on the block (74), then back to the frame assembly (20) where it engages the chain hoist (68).
REFERENCES:
patent: 272439 (1883-02-01), Haskins
patent: 811077 (1906-01-01), Moore
patent: 836451 (1906-11-01), Moore
patent: 874105 (1907-12-01), Moore
patent: 878226 (1908-02-01), Moore
patent: 1005452 (1911-10-01), Moore
patent: 1130420 (1915-03-01), Moore
patent: 1195985 (1916-08-01), Grant
patent: 1248980 (1917-12-01), Zetzman
patent: 1455369 (1923-05-01), Valentine
patent: 1558779 (1925-10-01), Bennington
patent: 1741074 (1929-12-01), Rasmussen
patent: 1858895 (1932-05-01), Juergens
patent: 2812251 (1957-11-01), Miller et al.
patent: 2880963 (1959-04-01), Ernst et al.
patent: 3223248 (1965-12-01), Cowan
patent: 3339753 (1967-09-01), Forster et al.
patent: 4114855 (1978-09-01), Adamson
patent: 4221301 (1980-09-01), Walerowski
patent: 4289076 (1981-09-01), Miller
Basinger Sherman
Brahan Thomas J.
Ingersoll-Rand Company
LandOfFree
Low-profile lifting 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 Low-profile lifting apparatus, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Low-profile lifting apparatus will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-38904