Knock out paddle shaft for mixing machines

Details Knock out paddle shaft for mixing machines Knock out paddle shaft for mixing machines

1989-12-14

1991-10-29

Hornsby, Harvey C.

Agitating

Mortar mixer type

Movable stirrer

366 46, 366 47, 285 32, 285 38, 285330, 403338, 403342, B28C 514

Patent

active

050610775

ABSTRACT:
A removable three-piece paddle shaft assembly (30) for use in a mixing machine such as a mortar mixer (11) is disclosed. Three-piece paddle shaft assembly (30) includes paddle shaft drive spindle (31), main paddle shaft (32), and a paddle shaft supporting spindle (33). Main paddle shaft (32) is coaxially coupled at its ends to paddle shaft drive spindle (32) and the paddle shaft supporting spindle (33) using a pair of removable coaxial couplers (35). Removable coaxial couplers (35), here each consist of a spline type connection and a cooperating coupling nut (38). Coupling nuts (38) are provided with radially extending hammer protuberances to facilitate rotation of the coupling nuts using only a hammer. Complete removal and reinstallation of main paddle shaft (32) can be accomplished without disassembly of cylindrical mixing drum (12) or double-action bearings (15) and (16).

REFERENCES:
patent: 1666802 (1928-04-01), Von Allmen
patent: 1673723 (1928-06-01), Van Arsdale
patent: 3043571 (1962-07-01), Swarthout
patent: 3921245 (1975-11-01), Clark
patent: 4097926 (1978-06-01), Face, Jr.
patent: 4509860 (1985-04-01), Lasar, III

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