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US3168245A - Continuous stop rail anchor - Google Patents

Continuous stop rail anchor Download PDF

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Publication number
US3168245A
US3168245A US171679A US17167962A US3168245A US 3168245 A US3168245 A US 3168245A US 171679 A US171679 A US 171679A US 17167962 A US17167962 A US 17167962A US 3168245 A US3168245 A US 3168245A
Authority
US
United States
Prior art keywords
hook
shoulder
rail
platform
anchor
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
Application number
US171679A
Other languages
English (en)
Inventor
Max K Ruppert
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Poor and Co
Original Assignee
Poor and Co
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Priority to DEP29860A priority Critical patent/DE1234251B/de
Application filed by Poor and Co filed Critical Poor and Co
Priority to US171679A priority patent/US3168245A/en
Priority to FR905070A priority patent/FR1329494A/fr
Priority to GB30252/62A priority patent/GB963165A/en
Application granted granted Critical
Publication of US3168245A publication Critical patent/US3168245A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01B—PERMANENT WAY; PERMANENT-WAY TOOLS; MACHINES FOR MAKING RAILWAYS OF ALL KINDS
    • E01B13/00—Arrangements preventing shifting of the track
    • E01B13/02—Rail anchors
    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01B—PERMANENT WAY; PERMANENT-WAY TOOLS; MACHINES FOR MAKING RAILWAYS OF ALL KINDS
    • E01B2201/00—Fastening or restraining methods
    • E01B2201/08—Fastening or restraining methods by plastic or elastic deformation of fastener

Definitions

  • This invention relates to rail anchors applied to the base flanges of railway rails to engage the tie and prevent creeping of the rails.
  • One of the objects is to provide a rail anchor made of stock of substantially T-shaped cross section with a continuous overdrive stop shoulder as distinguished from a divided or double shoulder as shown in my former Patents 2,7l7,740, 2,719,008, and 2,771,670.
  • the divided stop shoulder is formed of metal displaced in the breakdown die from the lateral edge or flange portions only of the head portion of the T-shaped stock.
  • a further object of the invention is to form the stop shoulder in a manner to reduce the possibility of potential stress raisers at any point between the platform and the hook.
  • the invention consists in the novel construction, combination, and arrangements of parts of an improved rail anchor, as hereinafter more fully described, illustrated and claimed.
  • FIGURE 1 is a perspective view of the parts of the breakdown die-illustrating the partially formed T-shaped anchor stock in the lower portion of said die and having the continuous shoulder formed in the T-stock.
  • FIGURE 2 is a detail perspective view of the upper half of the breakdown die illustrating the portion thereof which cooperates with the lower half of the die to form the continuous shoulder in the T-stock.
  • FIGURE 3 is a side elevation of the lower and upper halves of the breakdown die after forming the continuous stop shoulder in the T-stock, such stock later being again bent to form a finished rail anchor.
  • FIGURE 4 is a detail perspective view of an article of manufacture, namely a finished rail anchor having a continuous stop shoulder.
  • FIGURE 5 is a more or less diagrammatic view illustrating how the unfinished anchor of FIGURE 3 is inverted in the finishing press just prior to the descent of upper die.
  • FIGURE 6 is a view on the order of FIGURE 5 with the upper die in closed position.
  • FIGURE 7 is a detail perspective view of the die block of the finishing press showing how the continuous shoulder is maintained and completed during the final pressing operation.
  • the T-section type of .bar stock afforded greater promise of providing better results, and practical experience has shown this to be true.
  • the head of the T provides the platform for engaging the base of the rail, and the jaw or hook for-med 05 at one end included a rigidifying rib formed by the stem.
  • the bottom half of the breakdown die designated generally as D, is provided with a central slotted portion D for snugly receiving the stem 1 of the partially formed T- shaped anchor stock A so that the metal in the stem between the flanges of the platform will be adequately supported when the metal of the platform is partially bent in the breakdown die.
  • This die is also formed with the flat faces D at either side of the slot to support the lateral flanges 22 of the anchor stock so that when the upper die E descends to complete the first stage of forming the shoulder, the uninterrupted die cavity E will have made its counterpart of the continuous shoulder S on the anchor stock.
  • the cavity E (FIG. 2) is slightly inclined or tapered laterally outwardly from the center so as to provide the desired flow of the metal forming the overdrive stop under bending pressure, and thereby facilitating movement of the metal in the overdrive stop to its original flat position after the final forming operation.
  • the shoulder cavity in the die anvil 11 is uninterrupted from edge to edge to assure cooperation with the cavity E of die D (FIG. 2) to permit the heated metal to flow evenly and uniformly from the flanges and adjacent positions of the stern, between the platform and the hook, to provide the minimum disturbance of metal flow.
  • the continuous stop shoulder is formed between two arcs which avoid the possibility of abrupt change in metal flow in the highly stressed portion of the anchor where the stern joins the flange. This is of special importance because, as the hook is opened up by the wedging force due to driving the anchor on the rail, the metal at the junction of the hook and platform, takes the brunt of the resultant concentration of stress.
  • the continuous overdrive stop lends itself to a smooth design with less chance of concentration of working stresses in the anchor while the die performance in the presses is greatly improved and the possibility of forming laps in the anchor is materially reduced.
  • FIGURE 4 The physical shape of the finished rail anchor is clearly shown in FIGURE 4. This anchor'is shown in its horizontal in-use position and it is denoted in the claims as an article of manufacture.
  • the finished article is T-shaped in cross section for its complete length, the T-shape being made up of a stem 1 with flat side faces and oppositely disposed flanges 22, with horizontal coplanar upper faces which together constitute, in use, a single horizontal platform, for engaging the base of a rail.
  • One end of the body (the left of FIGURE 4) has a vertically upstanding locking shoulder to accommodate a vertical edge surface of a rail base.
  • the other end of the body (the right of FIGURE 4) has a rebent continuation forming a hook.
  • This hook in use, acts as an upper jaw, and it is cooperable with the right end portion of the horizontal platform to grip respectively the top and bottom surface of one flange of a rail base.
  • the anchor is installed by be ing driven on a rail. Installation forces are applied horizontally in FIGURE 4 on the upwardly curving portion of the stem 1, and thus, as priorly pointed out, the metal at the bend takes the brunt of such forces, and receives from the top and bottom surfaces of one flange of a said base, the maximum reaction forces.
  • an integral single stop shoulder is transversely. continuous.
  • the shoulder includes a first vertically upstanding planar front wall facing the open end of this hook, and a second planar wall slantingly intersecting the first wall by an obtuse angle. The intersection of the two walls present a straight horizontal ridge facing the open end of the hook.
  • This physical shape presents an inner bend surface of the flange which has a minimal of abrupt changes and therefore it is betterable to resist the installing and working forces than the prior known structures including my Patent 2,717,740.
  • the better ability to resist such forces is evidenced by practical tests showing longer effective life before replacement, as compared to acknowledged prior art.
  • a rail anchor comprising, in combination, a body of 'T-shape cr0ss-sectional stock providing a shank and oppositely disposed flanges constituting a platform for engaging the base of the rail, a hook including a continuation of said shank and flanges, and a single continuous overdrive stop shoulder including metal displaced from both said shank and flanges within the hook at the junction of the platform and the hook, said stop shoulder having an integral medial vertically upstanding first planar wall portion and a second slightly upwardly inclined planar top wall obtusely intersecting the first planar wall, both walls extending from edge to edge of the platform and facing the open end of the hook, said obtuse angled shoulder bounded smoothly on opposite sides by vertically disposed transversely continuous arcuate valley portions respectively facing the upper surface of the platform and the open end of the book.
  • a rail anchor of rolled and bent metal comprising in combination
  • the body also providing oppositely disposed flanges with coplanar upper faces constituting in use a horizontal platform for engaging the base of a rail,
  • stop shoulder being integral with the flanges and delineated by a first vertically upstanding planar wall, and an obtusely intersecting slightly upstandingly sloping second planar wall, the walls extend- I ing from edge to edge of the platform and presenting a straight horizontal ridge facing the open end of the hook,

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Forging (AREA)
  • Orthopedics, Nursing, And Contraception (AREA)
US171679A 1962-02-07 1962-02-07 Continuous stop rail anchor Expired - Lifetime US3168245A (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
DEP29860A DE1234251B (de) 1962-02-07 Wanderschutzklemme fuer Schienen
US171679A US3168245A (en) 1962-02-07 1962-02-07 Continuous stop rail anchor
FR905070A FR1329494A (fr) 1962-02-07 1962-07-25 Crampon continu d'ancrage des rails
GB30252/62A GB963165A (en) 1962-02-07 1962-08-07 Improvements in and relating to rail anchors

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US171679A US3168245A (en) 1962-02-07 1962-02-07 Continuous stop rail anchor

Publications (1)

Publication Number Publication Date
US3168245A true US3168245A (en) 1965-02-02

Family

ID=22624729

Family Applications (1)

Application Number Title Priority Date Filing Date
US171679A Expired - Lifetime US3168245A (en) 1962-02-07 1962-02-07 Continuous stop rail anchor

Country Status (4)

Country Link
US (1) US3168245A (de)
DE (1) DE1234251B (de)
FR (1) FR1329494A (de)
GB (1) GB963165A (de)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1234251B (de) * 1962-02-07 1967-02-16 Poor & Co Wanderschutzklemme fuer Schienen

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1559589A (en) * 1925-01-17 1925-11-03 P & M Co Rail anchor
US2171819A (en) * 1938-06-18 1939-09-05 Poor & Co Rail anchor
US2491052A (en) * 1948-11-10 1949-12-13 Richard J Mccomb Rail anchor
US2717740A (en) * 1952-04-24 1955-09-13 Poor & Co Rail anchor with positive applying stop
US2771670A (en) * 1950-03-31 1956-11-27 Poor & Co Method for forming a rail anchor with a positive applying stop
GB963165A (en) * 1962-02-07 1964-07-08 Poor & Co Improvements in and relating to rail anchors

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT186662B (de) * 1954-04-16 1956-09-10 P & M Co Schienenbefestigungsvorrichtung

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1559589A (en) * 1925-01-17 1925-11-03 P & M Co Rail anchor
US2171819A (en) * 1938-06-18 1939-09-05 Poor & Co Rail anchor
US2491052A (en) * 1948-11-10 1949-12-13 Richard J Mccomb Rail anchor
US2771670A (en) * 1950-03-31 1956-11-27 Poor & Co Method for forming a rail anchor with a positive applying stop
US2717740A (en) * 1952-04-24 1955-09-13 Poor & Co Rail anchor with positive applying stop
GB963165A (en) * 1962-02-07 1964-07-08 Poor & Co Improvements in and relating to rail anchors

Also Published As

Publication number Publication date
GB963165A (en) 1964-07-08
FR1329494A (fr) 1963-06-07
DE1234251B (de) 1967-02-16

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