Rail anchoring spike
AssigneeLewis Bolt & Nut Company
InventorTimothy John Austin
Life of this patent
Estimating the term…
Abstract
An improved rail anchoring spike that includes a conical swell adapted to engage with a hole in a metal tie plate during fastening of the metal tie plate to a tie. The conical swell has a smaller diameter toward a pointed end of the spike and a larger diameter toward a head of the spike. The smaller diameter is slightly larger than a diameter of a body of the spike. An angle formed by the conical swell relative to a center line passing through a center of the body of the spike matches an angle of the hole in the metal tie plate relative to a center of the hole.
Claims9
A rail anchoring spike for fastening metal tie plates to ties, comprising:
- (a) a conical swell adapted to engage with a hole in a metal tie plate during fastening of said metal tie plate to a tie, said conical swell having a first end with a smaller diameter toward a pointed end of said spike and a second end with a larger diameter toward a head of said spike, said smaller diameter being slightly larger than a diameter of a body of said spike, wherein an angle formed by said conical swell relative to a center line passing through a center of said body of said spike matches an angle of said hole in said metal tie plate relative to a center of said hole;
- (b) a flange on said head, said flange for engaging with a spike remover for future removal of said spike;
- (c) a stand-off extending axially from said first end of said conical swell toward said pointed end of said spike, said stand-off positioned adjacent said first end of said conical swell;
- (d) a threaded shank extending axially from said stand-off to form a tapered tip, said shank being adapted to engage said tie;
- and
- (e) a spacer extending axially from said flange, said spacer positioned adjacent said second end of said conical swell.
A rail anchoring assembly, comprising:
- (a) a metal tie plate adapted for fastening a rail to a tie using three or more spikes driven through corresponding conical holes in said metal tie plate and into said tie, each conical hole having an angle matching an angle of corresponding conical swells of said three or more spikes, and each conical hole having upper and lower diameters smaller than or equal to corresponding upper and lower diameters of each of said three or more spikes;
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- (b) three or more spikes, each spike of said three or more spikes comprising:
- (i) a conical swell adapted to engage with a hole in said metal tie plate during fastening of said metal tie plate to said tie, said conical swell having a first end with a smaller diameter toward a pointed end of said spike and a second end with a larger diameter toward a head of said spike, said smaller diameter being slightly larger than a diameter of a body of said spike, wherein an angle formed by said conical swell relative to a center line passing through a center of said body of said spike matches an angle of said hole in said metal tie plate relative to a center of said hole;
- (ii) a flange on said head, said flange for engaging with a spike remover for future removal of said spike;
- (iii) a stand-off extending axially from said first end of said conical swell toward said pointed end of said spike, said stand-off positioned adjacent said first end of said conical swell;
- (iv) a threaded shank extending axially from said stand-off to form a tapered tip, said shank being adapted to engage said tie;
- and
- (v) a spacer extending axially from said flange, said spacer positioned adjacent said second end of said conical swell.
Dependencies are inferred from the claim text.