Spike driving machine having pushing and percussive spike driving functions
AssigneeOak Industries Inc.
InventorsDennis J. Cotic, Jack K. Hosking
Life of this patent
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Abstract
A machine for driving spikes into the ties of a railroad track includes a spike driving assembly movably disposed relative to a frame for gripping spikes and driving gripped spikes into the ties, the spike driving assembly having a spike pushing function and a spike percussive function. In the pushing function the spike driving assembly pushes the spike a specified distance into the tie by the application of constant pressure, and in the percussive function the driving assembly percussively completes the driving of the spike into the tie. An operator may selectively alternate between the pushing and percussive functions.
Claims26
A machine for performing an operation on spikes of a railroad track having a plurality of ties, comprising:
- a frame having a plurality of wheels for rotatably engaging the railroad track;
- drive means for driving said frame along the track;
- and
- spike driving means movably disposed relative to said frame for gripping spikes and driving gripped spikes into the ties, said spike driving means including spike pushing means for performing a spike pushing function and spike percussive means for performing a spike percussive function, said spike driving means being configured for driving the spike completely into the tie using selected application of said spike pushing function and said spike percussive function;
- wherein said spike driving means is configured for performing one of said percussive function only, said pushing function only, and said pushing and percussive function only.
A machine for driving spikes into ties of a railroad track, comprising:
- a frame having a plurality of wheels for rotatably engaging the railroad track;
- drive means for driving said frame along the track;
- spike driving means movably disposed relative to said frame for gripping spikes and driving gripped spikes into the ties, said spike driving means including spike pushing means for performing a spike pushing function and spike percussive means for performing a spike percussive function, said spike driving means being configured for driving the spike completely into the tie using selected applications of said spike pushing function and said spike percussive function, said spike driving means being configured for performing one of said percussive function only, said pushing function only, and said pushing and percussive function only;
- and
- control means connected to said spike driving means for controlling the driving of the spikes, said control means adapted for selective operation of said pushing function and said percussive function between an automatic mode and a manual mode so that, in said automatic mode, responsive to a first signal, said spike driving means in said pushing function pushes the spike a specified distance into the tie, and responsive to a second signal, said spike driving means is actuated to said percussive function to complete the driving of the spike into the tie, and in said manual mode, said control means being configured to provide for manual selective actuation between said pushing function and said percussive function.
A method for driving spikes into the ties of a railroad track, comprising:
- providing a spike to a spike driving means for driving spikes, said spike driving means including spike pushing means for pushing spikes completely into the tie and spike percussive means for percussing spikes completely into the tie, said spike driving means being configured for performing one of a percussive function only, a pushing function only, and a pushing and percussive function only;
- gripping the spike on said spike driving means;
- actuating said spike driving means to perform a first of said functions to the spike;
- and
- signalling said spike driving means to cease performing said first function and begin performing a second of said functions to the spike for driving the spike into the tie.
Dependencies are inferred from the claim text.