Woodworking – Process – Securing
Patent
1997-07-15
1999-05-04
Bray, W. Donald
Woodworking
Process
Securing
144 85, 144150, 144 87, 144218, 144219, 144240, 144241, 144355, 144371, 525903, 525901, 1563045, 156256, B27F 100
Patent
active
058992510
ABSTRACT:
One or a plurality of machined timber elements of complimentary first and second configuration wherein each element is characterized by having at least one face surface (1,2) and one abutment surface (3,4) wherein said abutment surface incorporates in said first configuration an elongate undercut slot or female dovetail (5) and in said second configuration incorporates a correspondingly shaped, undercut elongate protuberance or male dovetail (8) and said abutment surface is not orthogonal in relation to said face surface such that said first timber element configuration and said second timber element configuration are adapted for co-operative engagement to effect the joining together of a first timber element incorporating said first timber element configuration with a second timber element incorporating said second timber element configuration whereby the undercut slot of said first timber element interengages with the protuberance of said second timber element to form a self locking joint.
REFERENCES:
patent: 850889 (1907-04-01), Kelly
patent: 1122350 (1914-12-01), Wysong
patent: 1178911 (1916-04-01), Frazzi
patent: 1833098 (1931-11-01), Voytko
patent: 2002228 (1935-05-01), Meyercord et al.
patent: 5357728 (1994-10-01), Duncanson
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