US439524A - Railroad-spike - Google Patents

Railroad-spike Download PDF

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US439524A
US439524A US439524DA US439524A US 439524 A US439524 A US 439524A US 439524D A US439524D A US 439524DA US 439524 A US439524 A US 439524A
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shank
spike
incisions
head
railroad
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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
    • F16B15/00—Nails; Staples
    • F16B15/06—Nails; Staples with barbs, e.g. for metal parts; Drive screws

Definitions

  • My invention relates to an improvement in a spike to be used in holding rails in place upon the ties, for fastening logs in building docks and piers, and for similar purposes.
  • the object of my invention is to provide a spike which shall be cheap in manufacture, strong and serviceable, and which shall be adapted by the construction of its shank to remain firmly fixed in the object into which it is driven.
  • FIG. 1 is a front View of the railroadspike, showing the head B, shank A,incisions a b, and point C.
  • Fig. 2 is a side view of the railroad-spike, showing the head B, shank A, incision a, incision h in outline, and point C.
  • Fig. 3 is a horizontal section of the railroadspike on the line 3 3 of Fig. 1, showing a portion of the shank A and the incisions a 1).
  • My railroad-spike which consists of a solid piece, is provided with a head B.
  • the head B as shown in the drawings, is a projecting or clutch head adapted to catch over the edge of a rail.
  • Extending downward from the head is a four-sided shank A, having a point 0.
  • incisions a I Upon each of opposite sides of the shank A are incisions a I), cut across the faces of the sides. These incisions are cut sufficiently far down on the shank to allow them to sink well into the object into which the spike is driven, one incision being placed below the other, so as not to weaken the shank A, as they would if placed directly opposite each other.
  • Each of the incisions a b is out across the side of the shank A at an angle less than a right angle to the plane of the side, the sides of the shank A on which the incisions a b are out being tapered or wedge-shaped from the head of the shank to the lowest points of the incisions.
  • a wedge-shaped taper may be given to the incision-bearin g sides the entire length of the shank A from the head to the point C, the angle of the wedge from the head to the incisions a I) being more acute than the angle of the wedge from the head to the point C, as shown in the drawings.
  • the object of the wedgeshaped construction above the points a b is that the incisions are thus in effect projections, and the grain of the wood or other substance into which the spike is driven is allowed to close over the incisions a 1;, thus holding the spike in place.
  • the plane of the incisions a b is at right angles to the plane of the point C, and the point of the spike being driven across the grain of the sleeper this construction further facilitates the closing of the grain around the incisions a b.
  • the essential feature of the incisions a b is that while not actually projections which when the spike is driven would tear the grain, they have the effect of being projections over which the grain readily closes and holds the spike firm.
  • the front and back of the shank are preferably not tapered, but left straight, thus affording the shank greater strength.
  • a spike having a clutch-head B, a foursided shank A, and a point C, the shank being tapered for a portion of its length on each of two opposite sides, and having at the termination of the taper on each of said sides a shoulder whereby the shank is firmly held in the object into which itis driven, substantially as described.
  • a spike having a clutch-head B, a foursided shank A, and a point C, the shank being tapered on each of two opposite sides, and having at the termination of the taper on each of said sides an incision the plane of which is at right angles to the plane of the point C, substantially as described.

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  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
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Description

A. D. KITTLE.
RAILROAD SPIKE.
(No Model.)
No. 439,524. Patented 0013.28, 1890.
Afro/Mn.
. WITNESSES:
UNITED STATES PATENT OFFICE.
ALONZO D. KITTLE, OF BLAUVELTVILLE, NEIV YORK.
RAILROAD-SPIKE.
SPECIFICATION forming part of Letters Patent No. 439,524, dated October 28, 1890.
Application filed January 16, 1890- Serial No. 337,100. (No model.)
To aZZ whom it may concern.-
Be it known that I, ALONZO D. KITTLE, a citizen of the United States, residing at Blanveltville, in the county of Rockland and State of New York, have invented a new and useful Railroad-Spike, of which the following is a specification.
My invention relates to an improvement in a spike to be used in holding rails in place upon the ties, for fastening logs in building docks and piers, and for similar purposes.
The object of my invention is to provide a spike which shall be cheap in manufacture, strong and serviceable, and which shall be adapted by the construction of its shank to remain firmly fixed in the object into which it is driven. I attain this object by the device illustrated in the accompanying drawings, in which- Figure 1 is a front View of the railroadspike, showing the head B, shank A,incisions a b, and point C. Fig. 2 is a side view of the railroad-spike, showing the head B, shank A, incision a, incision h in outline, and point C. Fig. 3 is a horizontal section of the railroadspike on the line 3 3 of Fig. 1, showing a portion of the shank A and the incisions a 1).
Similar letters referto similarparts throughout.
My railroad-spike, which consists of a solid piece, is provided with a head B. The head B, as shown in the drawings, is a projecting or clutch head adapted to catch over the edge of a rail. Extending downward from the head is a four-sided shank A, having a point 0. Upon each of opposite sides of the shank A are incisions a I), cut across the faces of the sides. These incisions are cut sufficiently far down on the shank to allow them to sink well into the object into which the spike is driven, one incision being placed below the other, so as not to weaken the shank A, as they would if placed directly opposite each other. Each of the incisions a b is out across the side of the shank A at an angle less than a right angle to the plane of the side, the sides of the shank A on which the incisions a b are out being tapered or wedge-shaped from the head of the shank to the lowest points of the incisions. A wedge-shaped taper may be given to the incision-bearin g sides the entire length of the shank A from the head to the point C, the angle of the wedge from the head to the incisions a I) being more acute than the angle of the wedge from the head to the point C, as shown in the drawings. Although preferable, it is not necessary in construction to make the sides of the shank A wedge-shaped below the points a b. The object of the wedgeshaped construction above the points a b is that the incisions are thus in effect projections, and the grain of the wood or other substance into which the spike is driven is allowed to close over the incisions a 1;, thus holding the spike in place. The plane of the incisions a b is at right angles to the plane of the point C, and the point of the spike being driven across the grain of the sleeper this construction further facilitates the closing of the grain around the incisions a b. The essential feature of the incisions a b is that while not actually projections which when the spike is driven would tear the grain, they have the effect of being projections over which the grain readily closes and holds the spike firm. The front and back of the shank are preferably not tapered, but left straight, thus affording the shank greater strength.
Havingfully described my invention, what I claim, and desire to protect by Letters Patent, is-
1. A spike having a clutch-head B, a foursided shank A, and a point C, the shank being tapered for a portion of its length on each of two opposite sides, and having at the termination of the taper on each of said sides a shoulder whereby the shank is firmly held in the object into which itis driven, substantially as described.
2. A spike having a clutch-head B, a foursided shank A, and a point C, the shank being tapered on each of two opposite sides, and having at the termination of the taper on each of said sides an incision the plane of which is at right angles to the plane of the point C, substantially as described.
ALONZO D. KITTLE.
Witnesses:
JAMES M. BALL,
CHAS. E. WILSON.
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