Ball transfer rail for table saw

Fire escape – ladder – or scaffold – Self-sustaining – Scaffold horse

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Details

269289MR, F16M 1100

Patent

active

054874459

ABSTRACT:
A ball transfer assembly includes a steel ball that rotates within a housing having a collar for centering the ball within the housing and a removable plug that forms a seat for the ball and retains the ball and collar within the housing. The plug has a snap lock arrangement with the housing that permits it to be removable allowing the assembly to be taken apart and cleaned. A gasket also aids in preventing the accumulation of dust and wood fibers within the housing. A series of ball transfer assemblies may be aligned in an extruded metal rail to form a long beam with equally spaced in-line ball supports each capable of 360.degree. movement. This ball rail can be set adjacent a table saw, moulder, shaper, or band saw to provide control over the movement of sheet material being cut or moved.

REFERENCES:
patent: 4381054 (1983-04-01), Rumpel
patent: 4706793 (1987-11-01), Masciarelli
patent: 4901971 (1990-02-01), Connelly
patent: 5288151 (1994-02-01), Isert
"Free Standing Work Supports," HTC Products, Inc. bulletin, one page, Jun.-Jul. 1990.
"Air Conveying Systems," Glasgow Products, Inc. bulletin, 5 pages, Feb. 1, 1992.
"Gravity Conveyors and Accessories," Metzgar Conveyor Co. bulletin, 12 pages, 1986.
"Retractable Pneumatic Ball Transfer," Omtec Corp. bulletin, 6 pages, Jul. 8, 1992.
"Ball Units" and Ball Transfer Tables, Rand Corp. bulletin, one page, (Undated).
"Conveyor Accessories," A-Z Midwest Factory Supply Co. bulletin, one page, (Undated).
"Use It As A Caster Or Transfer," Acme Caster Company bulletin, 4 pages, (Undated).
"Wheel Rail," Masyc Southern Corp. bulletin, 4 pages, (Undated).

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