Split bolt
AssigneeThe Dayton Sure-Grip & Shore Company
InventorRichard C. Mess
Life of this patent
Estimating the term…
Abstract
The split bolt comprises plural bolt segments having threaded outer surfaces which are brought radially together to render the bolt insertable into a complementary threaded recess, and spaced radially apart to cause the bolt threads to become engaged when an elongated, generally cylindrically shaped wedge member is inserted between the segments to space them into the threaded engagement. The wedge member has plural camming surfaces along the length thereof which engage corresponding camming surfaces on the inside surfaces of the bolt segments. Further, the bolt segments are interconnected by an elastic means which surrounds the segments and keeps them in surface contact with the wedge member inserted therebetween.
Claims9
A bolt of the character described, comprising plural bolt segments which when radially brought together render said bolt readily insertable into a complementary threaded recess, which have outer surfaces threadably engageable with such a recess when said segments are radially spaced apart, and which have inner surfaces which in combination form a central bore comprising a series of plural, generally cylindrical sections of uniformly decreasing cross-sectional diameter defining female camming surfaces, and an elongated wedge member insertable between said segments to space said segments radially into such threadable relation, said wedge member having a head end, means limiting insertion of said wedge member to a position wherein said head end thereof extends a predetermined longitudinal distance from the upper ends of said segments, and a body portion of a series of plural generally cylindrical sections defining male camming surfaces between said sections whereby when said wedge member is inserted between said segments, said wedge steps will cam against segment steps causing said segments to be spaced apart radially and uniformly along the length of the segments.
In a bolt of the type having plural bolt segments which when radially brought together render the bolt insertable into a complementary threaded recess and which when radially spaced apart engage the outer threaded surfaces of said segments with the threaded recess, and having an elongated wedge member insertable between the segments to space them apart, the improvement comprising plural camming surfaces comprising plural, integral, generally cylindrical sections joined by uniform, transitional sections on said wedge member which engage and cam against corresponding camming surfaces on the inner surfaces of said bolt segments when said wedge member is inserted between said segments to cause said segments to be spaced apart radially and uniformly along the length of the segments.
Dependencies are inferred from the claim text.