Metal working – Method of mechanical manufacture – Assembling or joining
Patent
1975-03-19
1976-06-15
Moon, Charlie T.
Metal working
Method of mechanical manufacture
Assembling or joining
29464, 29526, 52758F, 256 22, 256 70, 403264, B23P 1100
Patent
active
039627748
ABSTRACT:
Disclosed is a method of interlocking the rails of a railing, fence or the like with the ends of the hollow posts thereof. Also disclosed is the joint construction used with said method. The method and the joint construction make possible easy interlocking without the use of rivets, bolts and nuts, or welding and can be effectively applied to the assembling of tubular railings made from aluminum by extrusion molding. When the joint is to be provided between a post and a rail base which passes over or under one end of the post, a stud having a head is pushed through a hole provided in the rail base into the end of the hollow post and a self-tapping screw is threaded into a gap between the stud and the inner wall of the post to fix them. The shape of the stud head is made such that it dos not obstruct the threading of the self-tapping screw. When the joint is to be provided between a post and one end of a rail base which does not pass over or under the end of the post, a differently constructed stud having a lateral arm for holding the rail base is pushed into the end of the post and a self-tapping screw is driven into a gap between them.
REFERENCES:
patent: 1599068 (1926-09-01), Swope
patent: 2524443 (1950-10-01), Huffman
patent: 2655345 (1953-10-01), Lindman
patent: 3315943 (1967-04-01), Van Den Broek
patent: 3317227 (1967-05-01), Nijhuis
patent: 3394518 (1968-07-01), Worrell
patent: 3608938 (1971-09-01), Murdock
patent: 3695649 (1972-10-01), Lavergne
patent: 3781973 (1974-01-01), Hubbard et al.
Kelman Kurt
Moon Charlie T.
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