US774672A - Wrought-metal railroad-car truck. - Google Patents

Description

PATENTED NOV. 8, 1904.

B. KAYLOR.

WROUGHT METAL RAILROAD GAR TRUCK.

APPLICATION FILED PEJLZ, 1903.

N0 MODEL.

PATENTBD NOV. 8, 1904.

' E. KAYLOR.

WROUGHT METAL RAILROAD GAR TRUCK.

APPLICATION FILED FEB. 2, 1903.

3 SHEETSSHEET 2.

N0 MODEL.

PATENTED Nov '8. 1904.

E. KAYLOR. v WROUGHT METAL RAiLROAD GAR TRUCK.

APPLICATION FILED FEB. 2, 1.903.

3 SHEETS-SHEET 3.

N0 MODEL.

' UNITED STATES Patented November 8, 1904.-

EDWARD KAYLOR, OF ALLEGHENY, PENNSYLVANIA.

WROUGHT-METAL RAILROAD-CAR TRUCK.

SPECIFIGATIONfOrming part of Letters Patent No. 774,672, dated November 8, 1904.

Application filed February 2, 1903- Serial No. 141,451. No model.)

- To all, whom it may concern.-

Be it known that I, EDWARD KAYLoR, a resident of Allegheny, in the county of Allegheny and State of Pennsylvania, have invented a new and useful Improvement in VVrought- Metal Railroad-Oar Trucks; and I do hereby declare the following to be a full, clear, and exact descriptionthereof. This invention relates to the manufacture of wrought-metal railway-car truck-frames, and has for its object the providing of a truckframe having a maximum of strength and minimum of weight. This I accomplish by forming from wrought metal each of the side frames, yokes, or wheel-pieces of a central flanged member and attaching thereto end pieces of double strength and thickness provided with integral spring-caps and pedestals, the whole being formed without distorting or stretching the metal, thereby forming side frames of great strength and simplicity and capable of being strengthened at the center or any portion as may be found necessary in practice under different requirements without adding unnecessary weight to the balance of the frame, as is the case with other constructions, as will be fully described hereinafter.

Heretofore in the making of sheet-metal trucks the yokes, side frames, or wheel-pieces that embrace the journal-boxes, and which shall hereinafter be termed side frames, have either been made from a single sheet (the metal of which is. weakened by buckling in the flanges at the corners of the upper and of the side frame) or in the case of using several parts the main member is of a continuous sheet formed into channel or angle form and having the ends bent downward at right angles with the center portion to form the outer pedestals of the side frame, and it has been found in practice that the bending of such channel or angles to right angles to form the yoke weakens and reduces the metal in the corners of the yoke, just where it should have its greatest strength. The corners of the yoke in practice should have a surplus of strength over the carrying strength of the truck, as in the case of a flat wheel and inside-hung brake the brakes being applied while the truck is in motion a tremendous strain is brought against the outer pedestals and corners of yoke by reason of the same, and for safety, the yoke at this point should have a surplus of strength over the carrying strength of the truck.

In the accompanying drawings, Figure 1 is a perspective view of my improved pressedsteel car-truck for railway-cars, which is constructed and'arranged in accordance with my invention. Fig. 2 is a perspective view of the central side pieces and transoms or bolster joined together and having the end pieces removed. Fig. 3 is a perspective view of one of the end pieces detached from the side or central member. Fig. 4: is a detailed side elevation of the side frame, showing one end piece attached in position and the other removed. Fig. 5 is a detailed side elevation of one of the end pieces, showing a modified form in which the same is folded 0r bent in a vertical line at the front. Fig. 6 is a plan view of the same. Fig. 7 is a sectional end elevation through the spring-cap of one of the end pieces, showing a wearing-piece arranged therein. Fig. 8 is a plan and end elevation of a wearing-piece, showing the form used in theend piece shown at Fig. 11 of the drawings. Fig. 9 is a perspective view of one of the side members of the truck. Fig. 10 is an end sectional elevation of the same, said section taken on the line Y Y of Fig. 9. Fig. 11 is a perspective view of a modified form of the end piece, in which the same is provided with aconical-top spring-cap and ribbed guide-bar plates. Fig. 12 is a detailed side elevation of another modified form of the end-piece, in which the same is provided with a conical-top spring-cap and ribbed guide-bar plates. Fig. 13 is a plan. View of the same. Fig. 14 is a sectional end elevation of the said modification, said section taken on the line .2 a of Fig. 12. Fig. 15 is a perspective view of a modified form of transom.

To construct a railway-car truck and side frame for the same in accordance with my invention I form from sheet metal the side frames, each of which consists in a central member 1 (see Figs. 2, 9, and 10) of a length slightly less than that of the distance from the inner side of one journal-box to the inner side of the other. This side member 1 is formed and 8) is placed within each of the springcaps,against which the truck-springs rest; but

from sheet metal, preferably certain grades these pieces maybe dispensed with and allow of steel, and by means of suitable dies the the spring to rest directly upon the inner pesame is provided with a deep inwardly-proi jecting flange 2 at the top, depressed at the center, and afiange somewhat less in width at 1 the base 3. This base-flange 3 is formed by pressing or flanging the metal to a right angle from a straight edge nearly the entire length of the sheet, leaving a small portion 1 at each end without flanges. These side or central portions 1 of the truck are joined together by a transom or bolster hereinafter described. Attached to each extremity of this central member 1 are combined journalbox bearings, spring-caps, side bearings, and a means for retaining wearing-pieces in position. These combination pieces will be hereinafter termed end pieces and are attached to the central member 1 by a suitable number of rivets 5, placed or arranged in a position to give the greatest strength to the parts, as shown in the several views of the drawings. Each of these end pieces 6 consists of a plate or sheet of wrought metal, folded the one portion or half over the other in a manner that when slipped over the end of the center member 1 the one part will be at the front and the other at the rear. This end piece 6 maybe folded at the base (see Figs. 1, 3, 12, and 1 1) or at the outer edge, (see Figs. 4, 5, and 11,) the one half or portion over the other, forming a double plate joined together at some part or portion, or the same may be made in two separate pieces. To form these end pieces, the sheet of metal is first blanked to the proper shape or contour and formed by means of suitable dies with a semicircular portion in each half (the one semicircular portion to register with the other when folded) to form the spring-cap 7 or bearing for the truck-springs and the edges of the opening 8 flanged outwardly in each half or section to form guide bars or plates 9. These guide bars or plates 9 are braced by means of angular ribs 10, struck up by the dies at the same time as the springcaps 7 and the guidebars 9, and the said strengthening-ribs 10 used as a means for holding and confining the wearing-plates 11 in position by forming in the said plates a corresponding rib or projection 12, as will be seen by reference to Fig. 4: on the drawings, and thereby prevent the wearing-pieces 11 from resting upon the tie-bolts 12 or bar 13 beneath. These end pieces 6 are formed either with a conical-top spring-cap (see Fig. 11) or with a comparatively fiat top, as shown at Figs. 1, 3, 5, and 12, and the inner portion or half of the said end pieces may be extended to the bolster or transom, and bent or flanged to a right angle and the said bend or flange 1 L riveted securely to the transom 15, as shown at Figs. 12 and 13. Awearing-piece 16 (see Figs. 7

ripheral top of the cap, if so desired. The end piece 6 when folded at the side necessitates the elongation of the lower extremities 17 in order that a bolt or rivet 18 may be used to join the sections together, (see Figs. 4, 5, and 11,) and in pressing the said end pieces a longitudinal semicircular groove 19 is formed at or near the lower ends at either side of the opening 8 and in each section in such manner that when the fold is made the two grooves will form a circular opening 19 for the reception of a tie-bolt 12, or, if it is desired, a bar 13 (see Fig. 12) may be used. When this bar 13 is used, the same is perforated and held in position by means of bolts 19, and the said bar 13 may either be of the same length as the tie-bolt 12, above described, or of a sufficient length to connect the one end piece 6 with the other, as shown at Fig. 12 on the drawings. Formed on the inner section of each of the end pieces along the top and at right angles to the vertical plane are flanges 20, which when the end pieces are in position are riveted at 21 to the top flange2 of the side member 1. This inner section of the end piece 6 is also provided with a small flanged portion 22 to engage with the lower flange 3 of the side member 1. These side members 1 are connected the one with the other by means of a transom or bolster, which consists of two channel-shaped pieces 15, arranged side by side the one parallel to the other and formed with boxed ends and securely attached to the said side members 1 by rivets 26. Attached to the top of these channel-sections 15 is a plate 27, and upon the top of the said plate 27 is attached the ordinary center plate 28 and the said transom or bolster otherwise strengthened by transverse pieces and ribs.

Having thus described my invention, I claim 1. In combination with the side frame of a railway-car truck, of end pieces attached thereto and formed of doubled sheets of metal, and integral spring-caps formed on said end pieces.

2. A side frame for a car-truck having the end pieces or portions thereof formed from doubled sheets of metal and in contact with each other.

3. A side frame for a car-truck having the end pieces or portions thereof formed from doubled integral sheets of metal and in contact with each other.

at. A side frame for a car-truck having the end pieces or portions thereof formed from doubled sheets of metal and in contact with each other, and integral guide-bar plates formed on said end pieces or portions.

5. A side frame for a car-truck having the IIO end pieces or portions thereof formed from doubled sheets of metal and in contact with each other, and integral spring-caps and guidebar plates formed on said end pieces or portions. 7

6. In combination with the side frame for a car-truck, of end ipieces formed from single sheets of metal folded and flanged to form a combined spring-cap, guide-bar plates and bearings for the tie-bolts.

7. In combination with the side frame of a car-truck, of end pieces formed from single pieces of sheet metal and folded at the base to form loops for the reception of the tie-bolts- 8. In combination with the side frame of a car-truck, of end pieces having integralloops formed at the base thereof for the reception of a tie-bar.

9. In a car truck formed of end pieces formed from single sheets of'metal which are doubled and in contact with each other, said end pieces having integral spring-caps, and Wearing-pieces arranged Within the said caps.

10. In combination with the sidemembers of a car-truck, of wearing-pieces, and end pieces having the ribs or depressions formed therein for confining the Wearing-pieces in position.

11. The combination with the side frame of a car-truck, of end pieces or portions having depressions therein and journal-box wearingpieces having ribs or projections engaging with said depressions whereby the said pieces are held in position.

12. In a car-truck, the combination of the side frames, each of Which is provided with end pieces formed of doubled sheet metal and securely riveted thereto, said end pieces consisting of a single piece of metal, folded the one portion over the other and pressed to form integral springaps, guide-bars and bearings for the tie bolts or bars.

13. In combination with a car-truck, of the bolster or transom, and end pieces formed ing formed with an integral flange at the upper end to meet and conform with the flange of the central or side member.

15. In a side frame for a car-truck, the combination of end pieces formed of asingle'sheet of folded sheet metal, a tie-bar extending from the one end piece to' the other and between the openings formingthe guide-bars of said end pieces, and means for attaching said tie-bar in position.

16. In a side frame for acar-truck, the combination of end pieces, and a tie-bar extending from one end. piece to theother and between the openings forming the guide-bars of said end pieces, said bar being rectangular in crosssection and perforated for the reception of suitablebolts to attach the same in position,

17. A side frame for railway-car trucks having a'flanged metal sheet for its center part, and end pieces, said end pieces being separate and of double thickness to thereby make a side frame of great strength at the ends without increasing the Weight of the center part and such center and end pieces being joined together. i V v 18. A metallic side frame for railway-car trucks, comprising a central part formed of a single flanged sheet of metal, and end pieces formed, of doubled sheets of metal, said centrail and end pieces being joined together by rivets.

In testimony whereof I, the said EDWARD KAYL have hereunto set my hand. I

EDWARD KAYLOR. Witnesses:

LoUIs S. WARD, JAMES H. DUFF.

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