US1205580A - Bolt or railroad-spike. - Google Patents

Bolt or railroad-spike. Download PDF

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Publication number
US1205580A
US1205580A US3270615A US3270615A US1205580A US 1205580 A US1205580 A US 1205580A US 3270615 A US3270615 A US 3270615A US 3270615 A US3270615 A US 3270615A US 1205580 A US1205580 A US 1205580A
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United States
Prior art keywords
spike
railroad
bolt
driven
shank
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Expired - Lifetime
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US3270615A
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Augustus H Taft
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
    • F16B13/00—Dowels or other devices fastened in walls or the like by inserting them in holes made therein for that purpose
    • F16B13/04—Dowels or other devices fastened in walls or the like by inserting them in holes made therein for that purpose with parts gripping in the hole or behind the reverse side of the wall after inserting from the front
    • F16B13/08—Dowels or other devices fastened in walls or the like by inserting them in holes made therein for that purpose with parts gripping in the hole or behind the reverse side of the wall after inserting from the front with separate or non-separate gripping parts moved into their final position in relation to the body of the device without further manual operation
    • F16B13/0891—Dowels or other devices fastened in walls or the like by inserting them in holes made therein for that purpose with parts gripping in the hole or behind the reverse side of the wall after inserting from the front with separate or non-separate gripping parts moved into their final position in relation to the body of the device without further manual operation with a locking element, e.g. wedge, key or ball moving along an inclined surface of the dowel body
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S411/00—Expanded, threaded, driven, headed, tool-deformed, or locked-threaded fastener
    • Y10S411/922—Nail, spike or tack having locking device

Definitions

  • This invention relates to a bolt or railroad spike, and more particularly to that class of spikes which, after being driven to a set position, are retained in such position by means of a driven locking element having a portion thereof engaging the spike and provided with points entering the material into which the spike is driven at an angle with respect to thespike to hold the latter in the set position, against displacement by strains.
  • One object of my invention resides in-the provision of a spike of the class above mentioned which is simple in construction and embodies means for engagement with a tool to withdraw the locking element independ ently of the spike.
  • Another object resides in the provision, on the locking element, of points cooperating with a recess in the spike to cause the points to enter the material into which the spike is driven in different planes thereby minimizing the danger of splitting.
  • Figure l is a rear view of my invention showing the locking memher in position to be driven down
  • Fig. 2 is a side view of the same
  • Fig. 3 is a rear view showing the locking member driven down.
  • the numeral 2 indicates the shank of a railroad spike having a head 1. As shown, the shank is cut-away on its rear face and provided with obstructions 20 between the thickened end portion 3 and the head 1.
  • the locking member 21 is substantially the width of the rear face of the spike and is provided at its lower end with two points or prongs 22 adapted to be deflected in opposite directions by engagement with the sloping shoulders formed by the thickened end, and above these prongs or points 22 are positioned shorter prongs 23 for engagement with the projections or obstructions 20 to be deflected in opposite directions.
  • 'A bolt or railroad spike comprising ahead and shank, a thickened portion forming a shoulder adjacent to the lower end of the shank having a divergently beveled upper face, a plurality of projections on the face of the shank adjacent to its outer edges and intermediate of its upper end and said shoulder, a headless locking element having a bifurcated end adapted to pass between said projections and to be deflected laterally by said shoulder to enter the material into which the spike is driven, and a pair of prongs on said locking member intermediate of its ends adapted to engage said projections on the shank and be deflected laterally and caused to enter the material into which the spike is driven in a different plane from said bifurcated ends, substantially as de-' scribed.

Description

A. H. T-AFT.
BOLT 0R RAILROAD SPIKE. APPLICATION FILED JUNE 7.1915.
1 ,205,580. Patented Nov. 21, 1916.
- .zg.5 a
AUGUSTUS H. TAFT, OF FAIR HAVEN, VERMONT.
BOLT OR RAILROAD-SPIKE.
Specification of Letters Patent.
Patented Nov. 21, 1916.
Application 'filed June 7, 1915. Serial No. 32,706.
To all whom it may concern Be it known that I, AUGUSTUS H. TAFT, of Fair Haven, in the county of Rutland and State of Vermont, have invented certain new and useful Improvements in Bolts or Railroad-Spikes; and I do hereby declare the following to be a full, clear, and exact de scription of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.
This invention relates to a bolt or railroad spike, and more particularly to that class of spikes which, after being driven to a set position, are retained in such position by means of a driven locking element having a portion thereof engaging the spike and provided with points entering the material into which the spike is driven at an angle with respect to thespike to hold the latter in the set position, against displacement by strains.
One object of my invention resides in-the provision of a spike of the class above mentioned which is simple in construction and embodies means for engagement with a tool to withdraw the locking element independ ently of the spike.
Another object resides in the provision, on the locking element, of points cooperating with a recess in the spike to cause the points to enter the material into which the spike is driven in different planes thereby minimizing the danger of splitting.
Other objects and features of the invention will be evident from the description and showing herein embodied.
I will now proceed to describe my invention in detail with particular reference to the forms illustrated on the accompanying drawings and illustrative of certain embodiments thereof, which I have found in practice to give good results.
In the drawings: Figure l is a rear view of my invention showing the locking memher in position to be driven down; Fig. 2 is a side view of the same; and Fig. 3 is a rear view showing the locking member driven down. r V
Referring now to the drawings, the numeral 2 indicates the shank of a railroad spike having a head 1. As shown, the shank is cut-away on its rear face and provided with obstructions 20 between the thickened end portion 3 and the head 1. The locking member 21 is substantially the width of the rear face of the spike and is provided at its lower end with two points or prongs 22 adapted to be deflected in opposite directions by engagement with the sloping shoulders formed by the thickened end, and above these prongs or points 22 are positioned shorter prongs 23 for engagement with the projections or obstructions 20 to be deflected in opposite directions.
In the construction thus described it will be obvious that a plurality of prongs are diverted laterally from the locking member into the'material into which the spike is driven on different planes and at different periods in the insertion of the locking element. I
Having thus described my invention, what I claim as new and desire to be secured by Letters Patent, is:
'A bolt or railroad spike, comprising ahead and shank, a thickened portion forming a shoulder adjacent to the lower end of the shank having a divergently beveled upper face, a plurality of projections on the face of the shank adjacent to its outer edges and intermediate of its upper end and said shoulder, a headless locking element having a bifurcated end adapted to pass between said projections and to be deflected laterally by said shoulder to enter the material into which the spike is driven, and a pair of prongs on said locking member intermediate of its ends adapted to engage said projections on the shank and be deflected laterally and caused to enter the material into which the spike is driven in a different plane from said bifurcated ends, substantially as de-' scribed.
In testimony whereof, I have signed this specification in the presence of two subscribing witnesses.
AUGUSTUS H. TAFT.
Witnesses:
JOHN R. ROBERT, CLAYTON P. THOMAS.
Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington, D. C.
US3270615A 1915-06-07 1915-06-07 Bolt or railroad-spike. Expired - Lifetime US1205580A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US3270615A US1205580A (en) 1915-06-07 1915-06-07 Bolt or railroad-spike.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US3270615A US1205580A (en) 1915-06-07 1915-06-07 Bolt or railroad-spike.

Publications (1)

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US1205580A true US1205580A (en) 1916-11-21

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