Multi-wall tie apparatus

Details Multi-wall tie apparatus Multi-wall tie apparatus

1995-06-30

1996-12-24

Smith, Scott A.

Tool driving or impacting

Automatic control of power operated means

Tool advance causing or controlling means

173114, 1731622, 408241R, 279145, 227147, B25C 513

Patent

active

055866050

ABSTRACT:
A cavity wall which is usually made with a hollow concrete block as the inner wythe and brick as the outer wythe is disclosed. A special purpose insertion tool is fitted to a standard hammer tool. A center pin is provided in the insertion tool made with an indent to match the pointed end of the tie. The pin is then pressed into the SDS fitting which is the connection into the drill. The tie end is supported by a short sleeve which, when it contacts the face of the wall, retracts against a spring until the tie driving is completed. A modified embodiment of the adapter recognizes that the tie when activated by the hammer invariably rotates clockwise. Accordingly, if the spring is wound clockwise, the bottom tail end will dig into its seat. On the other hand, if it is wound counterclockwise, it rotates in a "tail skid" relationship to the seat.

REFERENCES:
patent: 874499 (1907-12-01), Gunn
patent: 1024151 (1912-04-01), Smith
patent: 2587944 (1952-03-01), Williams
patent: 2643379 (1953-06-01), Matovich
patent: 3144892 (1964-08-01), Webster
patent: 3670388 (1972-06-01), Jack
patent: 4519536 (1985-05-01), Steigauf
patent: 5129118 (1992-07-01), Walmesley

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