US999773A - Railroad-spike. - Google Patents

Railroad-spike. Download PDF

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Publication number
US999773A
US999773A US52346109A US1909523461A US999773A US 999773 A US999773 A US 999773A US 52346109 A US52346109 A US 52346109A US 1909523461 A US1909523461 A US 1909523461A US 999773 A US999773 A US 999773A
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Prior art keywords
spike
railroad
wood
shoulder
driven
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US52346109A
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James S Fox
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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 invent-ion relates to improvements -in railroad spikes and the main object of the invention is the production of a spike of this character which may be readily driven into the wood and which when home will firmly engage the fibers of the wood and prevent improper or accidental withdrawal of the s ike.
  • pif-inother object of my invention is the provision of a railroad spike which can be manufactured at about the same cost as the spike in general and common use, but which will possess merit in point of eiiiciency.
  • my invention consists of a railroad spike embodying novel features of construction and arrangement of parts for service substantially as disclosed herein.
  • Figure l is a front view of the spike.
  • Fig. 2 is a side view.
  • Fig. 3 is a front view of a modified form.
  • Fig. l designates the railroad spike provided with the usual head and body and at a pointabout one-third of its length from the lower end it is provided with a shoulder portion C, tapering sides D and terminating in the driving point E, the shoulders being on the side of the spike and running parallel with the grain of the wood.
  • Figs. 3 and 4 is a face and end view of a modified form. It will be seen that in the modification that the body of the spike is gradually reduced in size down to the shoulder C and that the formation of the shoulder is effected by decreasing the size of the body of the spike.
  • a railroad spike comprising a body portion having a head formed on one end and having two of its opposite faces inclined to provide a broad entering point at the rear of and on the opposite side of the axis of the spike from that on which the head is, the lower portion of the spike sloping to a portion of reduced width and having vertical sides at the base, and laterally projecting wings intermediate the vertical sides of said reduced portion, said wings extending outward into the plane of the sides of the body of the spike and being adapted to engage the fibers of the tie to prevent the ready withdrawal of the spike.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Road Paving Structures (AREA)

Description

J. S. FOX.
i RAILROAD SPIKE.
APPLIoATxon 211.1111 001.19, 1909.
999,773. Patented Aug. 8, 1911.
JAMES S. FOX, 0F JACKSON, MICHIGAN.
RAILROAD-SPIKE.
Specification of Letters Patent.
Application iiled October 19, 1909.
Patented Aug'. 8, 1911.
Serial No. 523,461.
To all whom 'it may concern.'
Be itknown that I, JAMES S. Fox, a subject of the King of Great Britain, residing at Jackson, in the county of Jackson and State of Michigan, have invented certain new and useful Improvements in Railroad- Spikes, of which the following is a specification.
My invent-ion relates to improvements -in railroad spikes and the main object of the invention is the production of a spike of this character which may be readily driven into the wood and which when home will firmly engage the fibers of the wood and prevent improper or accidental withdrawal of the s ike.
pif-inother object of my invention is the provision of a railroad spike which can be manufactured at about the same cost as the spike in general and common use, but which will possess merit in point of eiiiciency.
IVith these objects in view, my invention consists of a railroad spike embodying novel features of construction and arrangement of parts for service substantially as disclosed herein.
Figure l is a front view of the spike. Fig. 2 is a side view. Fig. 3 is a front view of a modified form.
Fig. l designates the railroad spike provided with the usual head and body and at a pointabout one-third of its length from the lower end it is provided with a shoulder portion C, tapering sides D and terminating in the driving point E, the shoulders being on the side of the spike and running parallel with the grain of the wood. From this construction it will be seen that when the spike is driven into the timber, it upsets the fiber of the wood suiiicient to allow the shoulder portion to pass, when the fiber will immediately close over said shoulder portion forming a locking engagement therewith which prevents the spike from working loose and becoming detached.
Figs. 3 and 4 is a face and end view of a modified form. It will be seen that in the modification that the body of the spike is gradually reduced in size down to the shoulder C and that the formation of the shoulder is effected by decreasing the size of the body of the spike.
In the manufacture'of my spike I prefer making it so that the point E is about one-eighth of an inch back of the center line of the spike. In providing that, it has a tendency to throw the lip of the spike toward the rail when driven home thus-securing a firmer hold on the iron.
The advantage of a railroad spike constructed in accordance with my invention, will be readily understood by all conversant with this art, and it is plain that the spike can be driven in the wood with ease and when driven in, the fiber of the wood will engage the shoulder and form a locking connection therewith, and insure a firm and reliable fastening of the spike on the wood.
It is sometimes desirable to draw a spike and replace it. Vhen that is necessary, upon starting the spike out of the wood, the shoulders C 7 will cut sufficient of the fiber of the wood to fill in above the shoulders when the spike will draw out the balance of the distance the same as an ordinary spike.
I claim;
A railroad spike, comprising a body portion having a head formed on one end and having two of its opposite faces inclined to provide a broad entering point at the rear of and on the opposite side of the axis of the spike from that on which the head is, the lower portion of the spike sloping to a portion of reduced width and having vertical sides at the base, and laterally projecting wings intermediate the vertical sides of said reduced portion, said wings extending outward into the plane of the sides of the body of the spike and being adapted to engage the fibers of the tie to prevent the ready withdrawal of the spike.
In testimony whereof I affix my signature, in presence of two witnesses.
JAMES S. FOX.
Witnesses:
EUNICE BARLOW, E. J. MARRINANE.
Copies of this patent may be obtained for ve cents each, by addressing the Commissioner of Patents, Washington, D. C.
US52346109A 1909-10-19 1909-10-19 Railroad-spike. Expired - Lifetime US999773A (en)

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