US402163A - Car-truck - Google Patents

Car-truck Download PDF

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Publication number
US402163A
US402163A US402163DA US402163A US 402163 A US402163 A US 402163A US 402163D A US402163D A US 402163DA US 402163 A US402163 A US 402163A
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Prior art keywords
transom
truck
sustaining
car
bolster
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B61—RAILWAYS
    • B61F—RAIL VEHICLE SUSPENSIONS, e.g. UNDERFRAMES, BOGIES OR ARRANGEMENTS OF WHEEL AXLES; RAIL VEHICLES FOR USE ON TRACKS OF DIFFERENT WIDTH; PREVENTING DERAILING OF RAIL VEHICLES; WHEEL GUARDS, OBSTRUCTION REMOVERS OR THE LIKE FOR RAIL VEHICLES
    • B61F5/00—Constructional details of bogies; Connections between bogies and vehicle underframes; Arrangements or devices for adjusting or allowing self-adjustment of wheel axles or bogies when rounding curves
    • B61F5/02—Arrangements permitting limited transverse relative movements between vehicle underframe or bolster and bogie; Connections between underframes and bogies
    • B61F5/04—Bolster supports or mountings
    • B61F5/12—Bolster supports or mountings incorporating dampers
    • B61F5/122—Bolster supports or mountings incorporating dampers with friction surfaces

Definitions

  • This invention relates to car-trucks of that class in which a metallic bolster is fitted into and vertically movable in a metallic transom, and is an improvement upon the car-truck shown and described in another application,
  • One feature of my present invention consists in constructing the metallic transom as will be described, whereby it is strengthened at .its upper part to enable it to withstand excessive strain and prevent it being bent or doubled by shocks, such as would arise in suddenly starting and stopping the car.
  • My improved transom also affords a support for the saddle-bar when. carried in toward the center of the truck, as when elliptical springs are used to supportthe bolster.
  • the transom is also constructed to permit of the passage of air through it, thereby lessening resistance when the car is moving at a high rate of speed.
  • the peculiar construction of the transom. permits water and dirt to pass'off freely.
  • Another feature of my invention consists in supporting the end curve-plates upon the transom, so that when rounding curves the car is maintained substantially level, as will be described.
  • Still another feature of my invention consists in making the bolster of preferably metallic tubes, by which increased strength, coupled with lightness and simplicity of construction, is obtained.
  • the tubes referred to are supported b bolster-sustaining blocks, preferably made in one piece or casting, but which may be made in two parts suitably bolted or riveted together.
  • the "bolster sustaining blocks are preferably provided with chafe-irons, to obviate wear upon the bolster.
  • My invention further consists in making the upper or'top side of the arch-bar-sustaining blocks concaved downward, and forming or shaping the arch-bar to conform to it, for a purpose as will be described.
  • Still another feature of my invention consists in a novel pedestalstrap, to be hereinafterdescribed.
  • Figure 1 is a side elevation of a car-truck embodying my invention
  • Fig. 2 a partial end elevation and transverse section of the cartruck shown in Fig. 1, the section being taken on line 00 00
  • Fig. 3 a top or plan view of the truck shown in Fig. 1.
  • Fig. at is a side elevation and longitudinal section of the transom, showing part of one arch-bar-sustaining block in section, the section being taken 011 line if 3 Fig, 1;
  • Fig. 5 a top or plan view of the transom partially broken out;
  • Fig. 6, a section of the transom in the line x Fig. 4;
  • Fig. 7, a partial longitudinal section and elevation of a bolster and its sustaining-blocks;
  • Fig. 12 being a top or plan view of Fig. 11; Fig. 13, a top or plan view of the saddle; Fig. 14, a section in line a of the saddle shown in Fig. 13; Fig. 15, a detail of the rocker; Fig. 16, a top view of the end curve-plate; Fig. 17, an end elevation of the curve-plate shown in Fig.16, and Fig. 18 .a side elevation of the end curve-plate.
  • the transom is composed, as shown, of two side pieces, 00,001- ner pieces, co, and bottom pieces, a preferably of steel, which are riveted, as herein shown, to inside castings or braces, a
  • the soln is open between the side pieces and corner pieces, so that air is permitted to pass readily through the transom when the truck is in motion, and the said transom being open at its bottom between the piece a and corner pieces permits water and dirt to pass through the transom.
  • the side pieces, a are made of suitable thickness to stiffen the upper part of the transom and enable it to with stand shocks such as due to suddenly starting and stopping the ear with which the truck is used.
  • the transom at its ends supports, as shown, a frame, I), sustaining end curve-plates, (not herein shown,) but which will preferably be substantially such as shown and described in the application referred to, the curve-platesupporting frame serving as a stop to limit the side swaying or tipping of the car when rounding a curve, or when the car is running on irregular tracks, thereby maintaining a substantially horizontal position and effecting a more even riding of the ear.
  • a frame, I sustaining end curve-plates, (not herein shown,) but which will preferably be substantially such as shown and described in the application referred to, the curve-platesupporting frame serving as a stop to limit the side swaying or tipping of the car when rounding a curve, or when the car is running on irregular tracks, thereby maintaining a substantially horizontal position and effecting a more even riding of the ear.
  • the transom receives within it the bolster composed,preferably, of two or more metallic tubes, 1), the said tubes, as herein shown, being supported by sustaining-blocks If, each of which is preferably east in one piece, but which may be preferably made in two parts secured together, as by rivets or bolts.
  • the bolster-sustaining blocks 1) are provided, as herein shown, with chafe-irons 19 which cooperate with the upper portion of the castings or transom-braces a", which are preferably widened, as at b (See Fig. at.)
  • the bolster-tubes may have chafe-irons b riveted or otherwise secured to them, as shown in Figs. 11 and 12.
  • the tubular bolster is supported within the transom, as herein shown, by elliptical springs b resting on a spring-seat, which is itself rocked upon the hanger-seat 12 (see Fig. 2,) the said hanger-seat being sustained at each end by a hanger-link, b, passed over the rocker-bar b substantially as in the application referred to.
  • the rocker-bar b is mounted upon a saddle, 0, (see Figs.
  • each arch-bar sustaining block w is cast with its upper or top side, 2, (see Fig. 1,) concaved downward, and the upper arch-bar, c, is bent or shaped to conform to the shape of the casting.
  • the pedestal-strap 0, connecting the pedestals and transom for sake of stiffness or rigidity, is composed of a single bar corrugated, preferably, on both sides, as shown in Fig. 2.
  • My improved truck will preferably be provided with the equalizer-bar (l and equalizersprings cl, substantially as shown in the application referred to.
  • I claim- 1 In a ear-truck, the combination, with a metallic transom composed of independent pieces of castings or braces to unite the said pieces to form the transom, of sustainingblocks provided with shoulders to co-operate with the said pieces, substantially as described.
  • a metallic transom composed of independent side and corner pieces, combined with sustaining-blocks provided with shoulders to co-operate with the said pieces, and with braces or castings to unite the said pieces to form the transom, substantially as described.
  • a transom composed of independent pieces, and castings or braces to unite said pieces together, of a bolster composed of independent tubes and vertically movable in said transom, sustaining-blocks for said tubes, and chafe-irons to prevent wear of the bolstertubes, substantially as described.
  • a car-truck the combination, with a transom composed of independentpieces, and castings or braces to unite said pieces together, of a bolster composed of tubes and vertically movable in said transom, sustaining-blocks for said tubes, and chafe-irons secured to said bolster-sustaining blocks, substantially as described.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Emergency Lowering Means (AREA)
  • Body Structure For Vehicles (AREA)

Description

( Model.) 3 Sheets-Sheet 1.
- L. K, JEWETT.
GAR TRUCK.
No. 402,163. Patented Apr. 30, 1889.
(No Modem- 3 Sheets-Sheet 2. L. .K. JEWETT..
GAR TRUGK'. --No. 402,163. PatentedApr. so. 1889.
'WiT-na'sss: IDA/entai a 1.5:iasiiiiii II K r Patented Apr. 30, 1889. 1711314,
GAR TRUCK.
L. K. JE-WETT.
u PETERS. rhowm m mr. wan-7, 10". Ii a (N9 Model.)
UNITED STATES PATENT OFFICE.
LUTHER K. JEWETT, OF BOSTON, MASSACHUSETTS.
CAR-TRUCK.
SPECIFICATION forming part of Letters Patent No. 402,163, dated April 30, 1889.
Application filed' October 12, 1888. Serial No. 287,924. (No model.)
To all whom it may concern:
Be it known that I, LUTHER K. J EWETT, of Boston, county of Suffolk, State of Massachusetts, have invented an Improvement in Car- Trucks, of which the following description, in connection with the accompanying drawings,
is a specification, like letters on the drawings representing like parts;
This invention relates to car-trucks of that class in which a metallic bolster is fitted into and vertically movable in a metallic transom, and is an improvement upon the car-truck shown and described in another application,
Serial N 0. 251,705, filed by me October 7, 1887.
One feature of my present invention consists in constructing the metallic transom as will be described, whereby it is strengthened at .its upper part to enable it to withstand excessive strain and prevent it being bent or doubled by shocks, such as would arise in suddenly starting and stopping the car.
My improved transom also affords a support for the saddle-bar when. carried in toward the center of the truck, as when elliptical springs are used to supportthe bolster.
The transom is also constructed to permit of the passage of air through it, thereby lessening resistance when the car is moving at a high rate of speed. The peculiar construction of the transom. permits water and dirt to pass'off freely.
Another feature of my invention consists in supporting the end curve-plates upon the transom, so that when rounding curves the car is maintained substantially level, as will be described.
Still another feature of my invention consists in making the bolster of preferably metallic tubes, by which increased strength, coupled with lightness and simplicity of construction, is obtained. 1
The tubes referred to are supported b bolster-sustaining blocks, preferably made in one piece or casting, but which may be made in two parts suitably bolted or riveted together. The "bolster sustaining blocks are preferably provided with chafe-irons, to obviate wear upon the bolster.
My invention further consists in making the upper or'top side of the arch-bar-sustaining blocks concaved downward, and forming or shaping the arch-bar to conform to it, for a purpose as will be described.
Still another feature of my invention consists in a novel pedestalstrap, to be hereinafterdescribed.
The particular features in which my invention consists will be pointed out in the claims at the end of this specification.
Figure 1 is a side elevation of a car-truck embodying my invention; Fig. 2, a partial end elevation and transverse section of the cartruck shown in Fig. 1, the section being taken on line 00 00; Fig. 3, a top or plan view of the truck shown in Fig. 1. Fig. at is a side elevation and longitudinal section of the transom, showing part of one arch-bar-sustaining block in section, the section being taken 011 line if 3 Fig, 1; Fig. 5, a top or plan view of the transom partially broken out; Fig. 6, a section of the transom in the line x Fig. 4; Fig. 7, a partial longitudinal section and elevation of a bolster and its sustaining-blocks; Fig. 8, a partial top view of the bolster and its sustaining-blocks shown in Fig. 7; Fig. 9, a section in line a of the bolster and its sustaining-blocks shown in Fig. 8; Fig. 10, a section through the center of the bolster in the line 00 Fig. 8; Figs. 11 and 12, details to be referred to, Fig. 12 being a top or plan view of Fig. 11; Fig. 13, a top or plan view of the saddle; Fig. 14, a section in line a of the saddle shown in Fig. 13; Fig. 15, a detail of the rocker; Fig. 16, a top view of the end curve-plate; Fig. 17, an end elevation of the curve-plate shown in Fig.16, and Fig. 18 .a side elevation of the end curve-plate.
Referring to Figs. 1 and 6, the transom is composed, as shown, of two side pieces, 00,001- ner pieces, co, and bottom pieces, a preferably of steel, which are riveted, as herein shown, to inside castings or braces, a The soln is open between the side pieces and corner pieces, so that air is permitted to pass readily through the transom when the truck is in motion, and the said transom being open at its bottom between the piece a and corner pieces permits water and dirt to pass through the transom. The side pieces, a, are made of suitable thickness to stiffen the upper part of the transom and enable it to with stand shocks such as due to suddenly starting and stopping the ear with which the truck is used.
The transom at its ends supports, as shown, a frame, I), sustaining end curve-plates, (not herein shown,) but which will preferably be substantially such as shown and described in the application referred to, the curve-platesupporting frame serving as a stop to limit the side swaying or tipping of the car when rounding a curve, or when the car is running on irregular tracks, thereby maintaining a substantially horizontal position and effecting a more even riding of the ear.
The transom receives within it the bolster composed,preferably, of two or more metallic tubes, 1), the said tubes, as herein shown, being supported by sustaining-blocks If, each of which is preferably east in one piece, but which may be preferably made in two parts secured together, as by rivets or bolts. The bolster-sustaining blocks 1) are provided, as herein shown, with chafe-irons 19 which cooperate with the upper portion of the castings or transom-braces a", which are preferably widened, as at b (See Fig. at.)
Instead of providing the bolster-sustaining blocks 1) with chafe-irons, the bolster-tubes may have chafe-irons b riveted or otherwise secured to them, as shown in Figs. 11 and 12.
The tubular bolster is supported within the transom, as herein shown, by elliptical springs b resting on a spring-seat, which is itself rocked upon the hanger-seat 12 (see Fig. 2,) the said hanger-seat being sustained at each end by a hanger-link, b, passed over the rocker-bar b substantially as in the application referred to. The rocker-bar b is mounted upon a saddle, 0, (see Figs. 13 and 14,) and the said saddle is supported directly upon the side pieces, a, of the transom, and the upper arch-bar, c, and its sustaining-blocks (1 the saddle-bar being secured by suitable bolts 0 which are extended through the saddle-bar, arch-bar-sustainin g blocks, and pedestal-strap c, as shown in Fig. 1, to securely unite or tie the said parts together. Each arch-bar sustaining block w is cast with its upper or top side, 2, (see Fig. 1,) concaved downward, and the upper arch-bar, c, is bent or shaped to conform to the shape of the casting. This construction prevents the upward buckling of the upper arch-bar when the truck is abnormally loaded,because the said arch-bar to buckle would have to elongate, and it is prevented from so doing by the truss 0 which supports the transom and encircles the ends of the upper arch-bar. To permit the upper arch-bar to buckle the truss 0 would have to be elongated, which is substantially impossible. The pedestal-strap 0, connecting the pedestals and transom for sake of stiffness or rigidity, is composed of a single bar corrugated, preferably, on both sides, as shown in Fig. 2.
My improved truck will preferably be provided with the equalizer-bar (l and equalizersprings cl, substantially as shown in the application referred to.
I claim- 1. In a ear-truck, the combination, with a metallic transom composed of independent pieces of castings or braces to unite the said pieces to form the transom, of sustainingblocks provided with shoulders to co-operate with the said pieces, substantially as described.
2. In a car-truck, a metallic transom composed of independent side and corner pieces, combined with sustaining-blocks provided with shoulders to co-operate with the said pieces, and with braces or castings to unite the said pieces to form the transom, substantially as described.
3. In a car-truck, the combination, with a metallic transom, of a curve-plate-sustaining frame secured at or near the ends of the said transom, substantially as described.
4. In a ear-truck, the combination, with a transom, of a bolster vertically movable therein and composed of independent tubes, and sustaining-blocks for said tubes, substantially as described.
5. In a car-truck, the combination, with a transom composed of independent pieces, of a bolster vertically movable therein and composed of tubes, and sustaining-blocks for said tubes, substantially as described.
6. In a ear-truck, the combination, with a transom composed of independent pieces, and castings or braces to unite said pieces together, of a bolster composed of independent tubes and vertically movable in said transom, sustaining-blocks for said tubes, and chafe-irons to prevent wear of the bolstertubes, substantially as described.
7. In a car-truck, the combination, with a transom composed of independentpieces, and castings or braces to unite said pieces together, of a bolster composed of tubes and vertically movable in said transom, sustaining-blocks for said tubes, and chafe-irons secured to said bolster-sustaining blocks, substantially as described.
8. In a car-truck, the combination, with a transom, of arch-bar-sustaining blocks having their upper or top sides concaved downward, and arch-bars shaped or bent to fit said concaved sides, as and for the purpose specified.
9. In a car-truck, the pedestal-strap composed of a single 'col rugated bar, s'ubstzm- Intestimonywhereoflhavesignedmyname tially as described; to this specification in the presence of two 10. In a Cal -truck; the col'nbination, with subscribing Witnesses. an arch-bai sustaining b100k,- of a metallic LUTHER K. JEXVETT. 5 transom having its upper end resting upon Witnesses:
and supported by the top f the said sustain- J AS. H. CHURCHILL, ing-block substantially as described. A. S. VVIEGAND.
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