US929955A - Lock-nut. - Google Patents

Lock-nut. Download PDF

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Publication number
US929955A
US929955A US49492209A US1909494922A US929955A US 929955 A US929955 A US 929955A US 49492209 A US49492209 A US 49492209A US 1909494922 A US1909494922 A US 1909494922A US 929955 A US929955 A US 929955A
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United States
Prior art keywords
nut
lock
pins
sockets
body portion
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
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US49492209A
Inventor
George F Kilmer
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Individual
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Individual
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Priority to US49492209A priority Critical patent/US929955A/en
Application granted granted Critical
Publication of US929955A publication Critical patent/US929955A/en
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Expired - Lifetime legal-status Critical Current

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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
    • F16B39/22—Locking of screws, bolts or nuts in which the locking takes place during screwing down or tightening
    • F16B39/28—Locking of screws, bolts or nuts in which the locking takes place during screwing down or tightening by special members on, or shape of, the nut or bolt
    • F16B39/32—Locking by means of a pawl or pawl-like tongue
    • 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
    • Y10S411/956—Automatic base clutch
    • Y10S411/957—Biting tooth
    • Y10S411/959—Bolt- or nut-carried

Definitions

  • This invention relates to lock nuts.
  • the object of the invention is to provide an extremely strong, simple, durable, inexpensive and thoroughly efficient device of the character specified which can easily and quickly be screwed into place in such manner as to cause it to bite into the adjacent fishplate or other surface and thus become securely locked against accidental loosening or removal.
  • Figure 1 is a transverse section through a rail joint equipped with a lock nut constructed in accordance with the present invention
  • Fig. 2 is a view looking at the inner face of the improved lock nut
  • Fig. 3 is a longitudinal section through the nut.
  • the improved lock nut of this invention comprises a body portion 1 which is formed with a central threaded bore 2 in the usual manner.
  • the body portion 1 is formed with a plurality of flattened faces 3 which cause it to be polygonal in shape.
  • the particular improvement of the present invention consists in combining with a nut of the character set forth a triad of hardened steel pins 4 which are embedded in a triad of suitable equi-distant sockets in the body portion 1 in such manner as to roject a slight distance outward from the en face 5 Specification of Letters Patent.
  • the pins projectin equally from said sockets so that when the nut is screwed on a bolt passed through a plate the pins constitute a three-point bearing on the plate and prevent lateral stress being brought to bear on the bolt.
  • the sockets which are formed in the body portion 1 to receive the hardened steel pins 4 from unduly weakening the said body portion 1 it is pre ferred to locate said sockets at the thickened portions of the nut adjacent the points of intersection of the flattened faces 3, as shown.
  • Each of the hardened steel pins 4 has its outer end cut on an incline, as indicated at 6.
  • each of the hardened steel pins 4 extends at an angle opposite to the incline of the thread 7 at the side of the bore 2 nearest said end, as indicated clearly in the sectional View.
  • the improved lock nut of this invention is extremely strong, simple, durable and inexpensive in construction as well as thoroughly efficient in operation.
  • a nut provided with a triad of equi-distant sockets in the under side thereof and a triad of pins having beveled ends projecting equally from said sockets to constitute a three point bearing when said nut is in use, the inclined end faces of the pins being disposed in advance of the acute angled edges of said ends, as the nut is screwed on a bolt.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Earth Drilling (AREA)

Description

G. P. KILMER.
LOOK NUT.
APPLICATION FILED AUG 20, 1906. RENEWED MAY 8, 1909.
Patented. Aug. 3, 1909 [NVE/VTOR A TTOR/VE VS ITED STATES PATENT FFTCE.
GEORGE F. KILMER, OF BISBEE, ARIZONA TERRITORY.
LOCK-NUT.
Application filed August 20, 1906, Serial No. 331,405.
T 0 all whom it may concern:
Be it known that I, GEORGE F. KILMER, a citizen of the United States, residing at Bisbee, in the county of Cochise and Territory of Arizona, have invented a new and useful Lock-Nut, of which the following is a specification.
This invention relates to lock nuts.
The object of the invention is to provide an extremely strong, simple, durable, inexpensive and thoroughly efficient device of the character specified which can easily and quickly be screwed into place in such manner as to cause it to bite into the adjacent fishplate or other surface and thus become securely locked against accidental loosening or removal.
Nith the foregoing and other ObjGCtS in view, which will appear as the description proceeds, the invention resides in the combination and arrangement of parts and in the details of construction hereinafter described and claimed, it being understood that changes in the precise embodiment of the invention herein disclosed can be made within the scope of the following claim without departing from the spirit of the invention or sacrificing any of its advantages.
In the accompanying drawings forming part of this specification: Figure 1 is a transverse section through a rail joint equipped with a lock nut constructed in accordance with the present invention; Fig. 2 is a view looking at the inner face of the improved lock nut; and Fig. 3 is a longitudinal section through the nut.
Like reference numerals indicate corresponding parts in the different figures of the drawings.
The improved lock nut of this invention comprises a body portion 1 which is formed with a central threaded bore 2 in the usual manner. The body portion 1 is formed with a plurality of flattened faces 3 which cause it to be polygonal in shape.
The particular improvement of the present invention consists in combining with a nut of the character set forth a triad of hardened steel pins 4 which are embedded in a triad of suitable equi-distant sockets in the body portion 1 in such manner as to roject a slight distance outward from the en face 5 Specification of Letters Patent.
Patented Aug. 3, 1909.
Renewed May 8, 1909. Serial No. 494,822.
thereof the pins projectin equally from said sockets so that when the nut is screwed on a bolt passed through a plate the pins constitute a three-point bearing on the plate and prevent lateral stress being brought to bear on the bolt. In order to prevent the sockets which are formed in the body portion 1 to receive the hardened steel pins 4 from unduly weakening the said body portion 1, it is pre ferred to locate said sockets at the thickened portions of the nut adjacent the points of intersection of the flattened faces 3, as shown. Each of the hardened steel pins 4 has its outer end cut on an incline, as indicated at 6. The inclined end 6 of each of the hardened steel pins 4 extends at an angle opposite to the incline of the thread 7 at the side of the bore 2 nearest said end, as indicated clearly in the sectional View. For this reason, as the improved lock nut is screwed inward upon the bolt 8 so as to abut against the fish-plate 9, the inclined ends 6 which are disposed in advance of the acute angled edges of the respective pins will easily ride over the outer surfaces of the fish-plate and will bite thereinto when the nut is screwed entirely home, so that any accidental loosening or rearward rotation of the nut will be prevented by the grip which the sharp points of the hardened steel pins 4 will have taken in the fish-plate.
The improved lock nut of this invention is extremely strong, simple, durable and inexpensive in construction as well as thoroughly efficient in operation.
What is claimed is:
As an article of manufacture a nut provided with a triad of equi-distant sockets in the under side thereof and a triad of pins having beveled ends projecting equally from said sockets to constitute a three point bearing when said nut is in use, the inclined end faces of the pins being disposed in advance of the acute angled edges of said ends, as the nut is screwed on a bolt.
In testimony that I claim the foregoing as my own, I have hereto afiixed my signature in the presence of two witnesses.
- GEORGE F. KILMER. Witnesses:
CHARLES ALVORD,
GERALD PEEL.
US49492209A 1909-05-08 1909-05-08 Lock-nut. Expired - Lifetime US929955A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US49492209A US929955A (en) 1909-05-08 1909-05-08 Lock-nut.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US49492209A US929955A (en) 1909-05-08 1909-05-08 Lock-nut.

Publications (1)

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US929955A true US929955A (en) 1909-08-03

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US49492209A Expired - Lifetime US929955A (en) 1909-05-08 1909-05-08 Lock-nut.

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