US2855112A - Rubber draft gears for railway draft rigging - Google Patents

Rubber draft gears for railway draft rigging Download PDF

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Publication number
US2855112A
US2855112A US482007A US48200755A US2855112A US 2855112 A US2855112 A US 2855112A US 482007 A US482007 A US 482007A US 48200755 A US48200755 A US 48200755A US 2855112 A US2855112 A US 2855112A
Authority
US
United States
Prior art keywords
casing
draft
rubber
gear
column
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
US482007A
Other languages
English (en)
Inventor
William E Withall
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.)
W H MINER Inc
Original Assignee
W H MINER Inc
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 NL98443D priority Critical patent/NL98443C/xx
Priority to BE544427D priority patent/BE544427A/xx
Priority to NL203585D priority patent/NL203585A/xx
Priority to US482007A priority patent/US2855112A/en
Application filed by W H MINER Inc filed Critical W H MINER Inc
Priority to DEM29176A priority patent/DE1015839B/de
Priority to GB37089/55A priority patent/GB773668A/en
Priority to FR1147978D priority patent/FR1147978A/fr
Priority to ES0226118A priority patent/ES226118A1/es
Application granted granted Critical
Publication of US2855112A publication Critical patent/US2855112A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B61—RAILWAYS
    • B61G—COUPLINGS; DRAUGHT AND BUFFING APPLIANCES
    • B61G9/00—Draw-gear
    • B61G9/12—Continuous draw-gear combined with buffing appliances, e.g. incorporated in a centre sill
    • B61G9/14—Continuous draw-gear combined with buffing appliances, e.g. incorporated in a centre sill with rubber springs
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B61—RAILWAYS
    • B61G—COUPLINGS; DRAUGHT AND BUFFING APPLIANCES
    • B61G9/00—Draw-gear
    • B61G9/04—Draw-gear combined with buffing appliances
    • B61G9/06—Draw-gear combined with buffing appliances with rubber springs
    • 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
    • F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
    • F16F1/00—Springs
    • F16F1/36—Springs made of rubber or other material having high internal friction, e.g. thermoplastic elastomers
    • F16F1/40—Springs made of rubber or other material having high internal friction, e.g. thermoplastic elastomers consisting of a stack of similar elements separated by non-elastic intermediate layers

Definitions

  • Another ob ect of the invention is to provide a twosection casing for enclosing the rubber units of a draft gear that is equipped with means for insuring that the casing sections will be properly aligned at all times.
  • Figure l is a plan view, partly in section, of the gear installed in the yoke and pocket of a railway vehicle;
  • Figure 2 is a plan view of the gear prepared for shipping and installation in the yoke of a draft rigging
  • Figure 3 is a front end view of the gear shown in Figure 2.
  • Figure 4 is a plan view through the gear, partly in section, along the line 4-4 of Figure 3, looking in the direction of the arrows;
  • Figure 5 is an end elevational view of the aligning means
  • Figure 6 is a plan view of the aligning means
  • Figure 7 is a fragmentary view of the resilient unit, partly in section.
  • Figure 8 is an end elevational view of the separators.
  • the present invention seeks to provide a rubber freight gear which will fit into the AAR standard pocket and yoke of a railway draft rigging, and to provide in that gear means for definitely maintaining proper alignment under all conditions.
  • the gear of the present invention comprises a two-section metallic casing of substantially rectangular cross section, the rear section of which is in the form of a deep cup and the front section a relatively shallow coverlike member.
  • the rear casing With the gear installed in the pocket and yoke of a draft rigging, the rear casing seatsagainst the lugs that define the rear end of the pocket and the front casing seats against the usual front follower which in turn seats against the lugs defining the front end of the pocket.
  • the rear end of thecoupler shank abuts against the front follower and the yoke abuts against the rear wall of the rear casing.
  • thecoupler moves forwardly, carrying with it the yoke which moves the rear section of the casing away from the lugs, thereby to compress the column against the front section of the casing which at this time is securely held by the engagement of the front follower with the front lugs.
  • the action is reversed.
  • Patented Oct. 7, 1958 2 rear casing is firmly seated against the rear lugs of the pocket and the shank forces the front follower and front casing rearwardly to compress the column.
  • the front follower and rear wall of the rear casing will both be disposed at right angles to the longitudinal median line of the vehicle. Under these conditions the draft gear will be centered upon said line and when the casing sections are moved therealong, either in buff or in draft, there will be but little or no tendency for the gear to buckle or move out of alignment. In vehicles in which the lugs are not properly positioned, the front follower or the rear wall of the casing may not be truly at right angles to the median line of the vehicle and the tendency of the gear to buckle will be increased thereby.
  • the aligning means of the present invention counteracts this tendency to buckle and as a consequence the gear is maintained in proper alignment even under adverse conditions.
  • the gear of the present invention comprises a front casing section A, a rear casing section B aligned therewith and separated therefrom, which casing is adapted to fit within the yoke C of the draft rigging.
  • the rear Wall of the rear casing section B abuts against the rear lugs of the pocket and the front wall of casing section A abuts against the front follower D in the usual manner.
  • the shank E of the coupler engages the front follower D.
  • a key F projects through the shank E of the coupler and the yoke to couple the two together in the usual manner.
  • the front casing section A comprises a front wall 10 which is generally rectangular witn chamfered corners, from the edges of which wall a narrow integral flange 11 projects rearwardly.
  • the flange 11 has top and bottom horizontal portions 12 and 13, vertical side sections 14 and 15, and diagonal corner sections 16 which extend between the top and bottom and side sections of the flange.
  • Ears 17 project outwardly from the diagonal sections 16 of the flange and are perforated to receive bolts, as will presently appear.
  • the rear face of the front wall 10 contains sockets 18 by which the rubber units are aligned with respect to the casing in known manner.
  • the rear casing B consists of a rectangular rear wall 20 and forwardly extending walls 21 integral therewith.
  • the walls 21 of the rear casing have top, bottom and side sections, corresponding to the respective sections of the front casing, which former sections are joined by corner sections 22 corresponding in configuration to the corner section 16 of the front casing.
  • Ears 23 project outwardly from the diagonal sections 22 and are perforated to receive bolts, as will presently appear.
  • the rear wall 20 of the rear casing contains sockets 24 by which the units of the column are aligned with respect to the casing in known manner.
  • the resilient column consists of rubber pads G of known design, as will be seen best in Figure 7, each of which pads G has a first metallic plate 30 and a second metallic plate 31, to the adjacent faces of which plates rubber 32 is bonded. Plates 30 and the rubber bonded to the same contain bosses 33 which project out of the outer face of the plate, and plates 31 and the rubber adjacent thereto contain sockets 34. The bosses 33 of the rearmost unit G engage in the sockets 24 in the rear wall 20 to position the unit with respect to that wall.
  • bosses 33 of the adjacent unit register with the sockets 34 in the second plate 31 of the rear unit to align the units with respect to each other in the usual manner. It will be noted that the units in the column G are reversed and that the bosses 33 extend outwardly from both ends of the column.
  • the rubber column consists of sixteen (16) pads which are divided into groups by separators H, each of which consists of a weblike plate 40 disposed between the adjacent units G and flanges 41 engaging the vertical walls of the casing and flanges 42 engaging the top and bottom walls thereof.
  • separators H each of which consists of a weblike plate 40 disposed between the adjacent units G and flanges 41 engaging the vertical walls of the casing and flanges 42 engaging the top and bottom walls thereof.
  • the interrupted flanges upon the separators H are of such width that when the column is compressed to its maximum extent the flanges are still spaced apart; that is to say, the column does not go solid within itself.
  • the units G are octagonal in shape to fit in the easing with a minimum of lost space and, as will be seen best in Figure 8, the separator plates 40 correspond in shape and contain short flanges 44 that project from the plate opposite to flanges 41 and 42 and engage diagonal sections 22 of the walls of casing B.
  • separators H are preferably forged from steel plates.
  • the aligning means I contain a platelike web 45 from the edges of which a continuous flange 46 extends in both directions.
  • Flange 46 telescopes into the front and rear sections of the casing and has substantial engagement with the walls thereof fo a purpose which will presently appear.
  • the flanges 46 are preferably forged in two sections from steel plates, which sections are welded to the plate 45 as indicated at 47. Such construction produces great strength with a minimum thickness of metal in the aligning means.
  • the rear casing B In assembling the gear, the rear casing B is placed with its rear wall 20 lowermost upon a suitable support, and the column of units G and separators H are built up therein' with the uppermost units G extending beyond the open end of the rear casing member B.
  • the aligning means I is then put in place over the exposed end of the column and the remaining units G placed above it, after which the front section A is placed over the latter units.
  • the stack thus formed and consisting of pads, separators, aligning means and front casing, eX- tends a considerable distance above the upper end of the casing B.
  • Flanges 46 on the aligning means do not extend into the flanges 11 on casing A or into the walls 21 of casing B at this stage of assembly.
  • the draft gear for freight service of the present invention is a unitary structure having high initial resistance and high capacity in foot pounds of work done by the gear.
  • the aligning means of the present invention maintains the gear properly aligned even though the pocket defining lugs of the vehicle are out of line.
  • a rubber gear for railway draft rigging comprising: a cuplike generally rectangular metallic rear casing consisting of a planar rear wall with integral side walls extending forwardly therefrom, said side walls being joined together by integral diagonally disposed corner walls, said casing having its greatest dimension from said rear wall to its open end; a generally rectangular metallic front casing spaced from and aligned with said rear casing and consisting of a front wall and integral narrow flanges extending rearwardly therefrom said casings being capable of relative movements each with respect to the other; a column of metal-faced rubber units disposed within said casing sections and engaging said front and rear walls; separators dividing said column into groups with a plurality of pads in each group; interrupted flanges on said separators projecting in one direction from the separators and engaging only the side walls of said rear casing to maintain said column aligned in the casing; shorter flanges projecting in the opposite direction from said separators and engaging said corner walls; and an aligning means having continuous flanges telescoped
  • a unitary rubber gear for railway draft rigging comprising: a metallic rear casing shaped as a deep cup of rectangular configuration and having a rear wall and side walls projecting forwardly therefrom a distance greater than the width of the rear wall; a metallic front casing spaced from and aligned with the rear casing and consisting of a front wall and side walls projecting rearwardly therefrom a distance less than the width of the front wall, said casings being disposed with their open ends adjacent and being capable of relative movement each with respect to the other; a plurality of metal-faced rubber units disposed in a column within said casings and extending between the rear wall of the rear casing and the front wall of the front casing; an aligning means consisting of a platelike web disposed between the metal faces of adjacent ones of said units; and a flange extending in both directions from the edges of said web, said flange bridging the gap between said casings and being telescoped into both casings and having substantial contact with the side walls on both casings to

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Vibration Dampers (AREA)
  • Gears, Cams (AREA)
  • Spinning Or Twisting Of Yarns (AREA)
  • General Details Of Gearings (AREA)
  • Gear Transmission (AREA)
US482007A 1955-01-17 1955-01-17 Rubber draft gears for railway draft rigging Expired - Lifetime US2855112A (en)

Priority Applications (8)

Application Number Priority Date Filing Date Title
NL98443D NL98443C (de) 1955-01-17
BE544427D BE544427A (de) 1955-01-17
NL203585D NL203585A (de) 1955-01-17
US482007A US2855112A (en) 1955-01-17 1955-01-17 Rubber draft gears for railway draft rigging
DEM29176A DE1015839B (de) 1955-01-17 1955-12-28 Gummistosseinrichtung fuer Eisenbahnzug- und -stossverbindungen
GB37089/55A GB773668A (en) 1955-01-17 1955-12-28 Rubber draft gears for railway draft rigging
FR1147978D FR1147978A (fr) 1955-01-17 1956-01-16 Appareil d'attelage à amortisseurs de caoutchouc pour wagons de chemin de fer
ES0226118A ES226118A1 (es) 1955-01-17 1956-01-16 Un mecanismo de caucho unitario para equipos de enganche ferroviarios

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US482007A US2855112A (en) 1955-01-17 1955-01-17 Rubber draft gears for railway draft rigging

Publications (1)

Publication Number Publication Date
US2855112A true US2855112A (en) 1958-10-07

Family

ID=23914263

Family Applications (1)

Application Number Title Priority Date Filing Date
US482007A Expired - Lifetime US2855112A (en) 1955-01-17 1955-01-17 Rubber draft gears for railway draft rigging

Country Status (7)

Country Link
US (1) US2855112A (de)
BE (1) BE544427A (de)
DE (1) DE1015839B (de)
ES (1) ES226118A1 (de)
FR (1) FR1147978A (de)
GB (1) GB773668A (de)
NL (2) NL98443C (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3202300A (en) * 1963-07-22 1965-08-24 Miner Inc W H Draft gear

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1797639A (en) * 1926-01-19 1931-03-24 Gould Coupler Co Friction draft gear
US1853857A (en) * 1929-11-29 1932-04-12 Glascodine Richard Thomson Central buffing and drawgear for railway vehicles
US1876019A (en) * 1928-10-23 1932-09-06 Thomas H Taylor Draft gear
US2231769A (en) * 1938-06-22 1941-02-11 Us Rubber Co Method of treating rubber mountings
US2564771A (en) * 1947-05-09 1951-08-21 Nat Malleable & Steel Castings Cushioning mechanism
US2713483A (en) * 1953-11-12 1955-07-19 Miner Inc W H Rubber cushioning units for shock absorbers for railway draft rigging
US2731258A (en) * 1952-11-03 1956-01-17 Miner Inc W H Friction snubber for railway car truck springs

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2640603A (en) * 1950-03-18 1953-06-02 Nat Malleable & Steel Castings Cushioning mechanism for railway vehicles
NL82409C (de) * 1951-04-21
BE514834A (de) * 1951-11-02

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1797639A (en) * 1926-01-19 1931-03-24 Gould Coupler Co Friction draft gear
US1876019A (en) * 1928-10-23 1932-09-06 Thomas H Taylor Draft gear
US1853857A (en) * 1929-11-29 1932-04-12 Glascodine Richard Thomson Central buffing and drawgear for railway vehicles
US2231769A (en) * 1938-06-22 1941-02-11 Us Rubber Co Method of treating rubber mountings
US2564771A (en) * 1947-05-09 1951-08-21 Nat Malleable & Steel Castings Cushioning mechanism
US2731258A (en) * 1952-11-03 1956-01-17 Miner Inc W H Friction snubber for railway car truck springs
US2713483A (en) * 1953-11-12 1955-07-19 Miner Inc W H Rubber cushioning units for shock absorbers for railway draft rigging

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3202300A (en) * 1963-07-22 1965-08-24 Miner Inc W H Draft gear

Also Published As

Publication number Publication date
ES226118A1 (es) 1956-03-01
GB773668A (en) 1957-05-01
DE1015839B (de) 1957-09-19
BE544427A (de)
NL203585A (de)
FR1147978A (fr) 1957-12-02
NL98443C (de)

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