US471875A - Charles mathie and esten asprey fletcher - Google Patents

Charles mathie and esten asprey fletcher Download PDF

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US471875A
US471875A US471875DA US471875A US 471875 A US471875 A US 471875A US 471875D A US471875D A US 471875DA US 471875 A US471875 A US 471875A
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mathie
asprey
fletcher
charles
block
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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
    • F16B39/00—Locking of screws, bolts or nuts
    • F16B39/02—Locking of screws, bolts or nuts in which the locking takes place after screwing down
    • F16B39/10—Locking of screws, bolts or nuts in which the locking takes place after screwing down by a plate, spring, wire or ring immovable with regard to the bolt or object and mainly perpendicular to the axis of the bolt
    • 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
    • Y10S411/955—Locked bolthead or nut
    • Y10S411/974—Side lock
    • Y10S411/991—Transversely sliding
    • Y10S411/992—Key, plate, or bar

Definitions

  • the object of our invention is to design a nut-lock specially adapted for locking the nuts on fish-plate bolts; and it consists, essentially, of a block designed to fit between a pair of fish-plate nuts or bolt-heads and secured in position by a conically-shaped pin extending from the fish-plate through a beveled slot made in the block, substantially as and for the purpose hereinafter explained and then definitely claimed.
  • Figure 1 is a perspective view of a railjoint with our improved nut-lock applied for the purpose of locking the nuts of the fishplate bolts.
  • Fig. 2 is an enlarged cross-section through my.
  • Fig. 3 is a perspective view of the front face of the block.
  • Fig. 4 is a perspective view of the back face of the block.
  • A represents the rail; B, the fish-plate; C, nuts fitted onto the fish-plate bolts D. All these parts may be made of the ordinary shape and style. I
  • a conically-shaped pin F thebase of the cone being at the outer end of the pin.
  • a hole a is made through the block E sufficiently large to permit the end of the pin F to pass through it.
  • a slot Z) extends vertically from this hole a.
  • the width of the said slot on the inner surface of the block corresponds with the diameter of the pin F close to the fish-plate B, while the diameter of the slot on the outer surface corresponds with the diameter of the base of the cone at the outer end of the pin F.
  • the block E When pushed against the fish-plate B, the block E is pressed down,-so that the neck of the pin F will enter the slot 6. From this it will be seen that so long as the block E is held in the position indicated between the nuts C it is impossible for the said nuts to work off. At the same time when it is necessary to remove the nuts the block E may be easily raised and withdrawn from its position without in any way being injured.
  • Our nut-lock is specially designed for fishplate bolts; but of course it may be used with all kinds of machinery when circumstances will permit of its employment.
  • What we claim as our invention is as an improved nut-lock, a block E,having a hole a made through it, and a slot 19, having inclined edges and extending from said hole, in combination with a conically-shaped pin F, fixed in a fish-plate Band fitting said slot, all constructed an d arranged substantially as shown and described, and -for the purpose specified.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Surgical Instruments (AREA)

Description

(No Model.) I V G. MATHIE 8; E. A. FLETCHEIL NUT LOOK.
No, 471,875. PatnteiManZQ, 1892.
71412168868 7 v jitrni'or fZ/wm (2M awe. l Om. W a ma 7 gum/Z04 v v UNITED STAT- s PATENT OFFICE.
CHARLES MATHIE AND ESTEN ASPREY FLETCHER, OF TORONTO, CANADA.
NUT-LOCK.
SPECIFICATION forming part of Letters Patent No. 471,875, dated March 29, 1892 Application filed May 15, 1391. fierial Nd. 392,809. (No model.)
To all whom it may concern.-
Be it known that we, CHARLES MATHIE,-'
blacksmith, and EsrEN ASPREY FLETCHER, contractor, both of the city of Toronto, in the county of York, in the Province of Ontario, Canada, have jointly invented a certain new and Improved NutrLock, of which the following is a specification.
The object of our invention is to design a nut-lock specially adapted for locking the nuts on fish-plate bolts; and it consists, essentially, of a block designed to fit between a pair of fish-plate nuts or bolt-heads and secured in position by a conically-shaped pin extending from the fish-plate through a beveled slot made in the block, substantially as and for the purpose hereinafter explained and then definitely claimed.
Figure 1 is a perspective view of a railjoint with our improved nut-lock applied for the purpose of locking the nuts of the fishplate bolts. Fig. 2 is an enlarged cross-section through my. Fig. 3 is a perspective view of the front face of the block. Fig. 4is a perspective view of the back face of the block.
A represents the rail; B, the fish-plate; C, nuts fitted onto the fish-plate bolts D. All these parts may be made of the ordinary shape and style. I
E is a block fitted between the pair of nuts C. With the view of securing this block in position in such a manner that it may be,
easily placed in position and removed when not required, we fix to the fish-plate B a conically-shaped pin F, thebase of the cone being at the outer end of the pin. A hole a is made through the block E sufficiently large to permit the end of the pin F to pass through it. A slot Z) extends vertically from this hole a. The width of the said slot on the inner surface of the block corresponds with the diameter of the pin F close to the fish-plate B, while the diameter of the slot on the outer surface corresponds with the diameter of the base of the cone at the outer end of the pin F. When the nuts C have been screwed home, a block E is placed between each pair of nuts, the said block being held so that the end of the pin F will pass through the hole a.
When pushed against the fish-plate B, the block E is pressed down,-so that the neck of the pin F will enter the slot 6. From this it will be seen that so long as the block E is held in the position indicated between the nuts C it is impossible for the said nuts to work off. At the same time when it is necessary to remove the nuts the block E may be easily raised and withdrawn from its position without in any way being injured.
In all other nut-locks with which we are familiar the device employed for locking the nuts soon wears and becomes useless, and in many of them they are destroyed the first time becomes necessary to remove the nut they are employed to lock, Whereas by our invention the nut-lock will practically last forever, so that the first expense is all that is necessary to incur, no renewals being required.
Our nut-lock is specially designed for fishplate bolts; but of course it may be used with all kinds of machinery when circumstances will permit of its employment.
We are aware of the United States Patents Nos. 149,808, 229,175, and 384,767, and claim nothing shown therein, as we regard our invention as essentially dilterent from the devices shown in said patents. By our arrangement of the conical-headed pin and the in clined sided slot the head of the pin does not project beyond the edge of the plate E, and is therefore not likely to be knocked 01f, which is a decided advantage. I
What we claim as our invention is As an improved nut-lock, a block E,having a hole a made through it, and a slot 19, having inclined edges and extending from said hole, in combination with a conically-shaped pin F, fixed in a fish-plate Band fitting said slot, all constructed an d arranged substantially as shown and described, and -for the purpose specified.
Toronto, April 30, 1891.
CHARLES MATHIE. ESTEN ASPREY FLETCHER.
In presence of- H. MoOoNAGHY, FRED. W. GABVIN.
US471875D Charles mathie and esten asprey fletcher Expired - Lifetime US471875A (en)

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