Elevator – industrial lift truck – or stationary lift for vehicle – Having specific load support drive-means or its control – Includes scissored supporting levers in drive-means
Patent
1995-09-20
1997-07-08
Noland, Kenneth
Elevator, industrial lift truck, or stationary lift for vehicle
Having specific load support drive-means or its control
Includes scissored supporting levers in drive-means
414711, B66B 902
Patent
active
056451415
ABSTRACT:
A hoist for roll material surface treatment composes of a lift platform means, a securing means, a hoist means and a transmission means. There are two pairs of spaced bars in the hoist means engagable with two pairs of spaced V-shape blocks in the securing mean allowing the hoist means to load or discharge a roll material supported by the lift platform means. There are rotary shafts in the hoist means for suspending the roll material through the central opening thereof The roll material is compressed between layers at the upper portion and stretched to form loosely gap between layers at the lower portion. The roll material is hoisted and immersed in a processing tank. When rotary shaft and the roll material are driven to rotate by the transmission means, the upper portion of the roll material squeeze out the processing liquid while the lower portion allow processing liquid to sip into the gap and uniformly cover the surface of the roll material. Thus roll material can get a uniform surface treatment.
REFERENCES:
patent: 5308217 (1994-05-01), Pienta
patent: 5421691 (1995-06-01), Fennone
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