US509354A - Wagon running-gear - Google Patents

Description

(No Mode1..)

J. H. BAKER.v WAGON RUNNING GEAR.

VUM

ms mmoNAL umani-Puma ccMPANY.

wAsMmaroN. o. c.

iIO

Y UNITED STATES;`

PATENT Ormea.

JAMES H. BAKER, OF ALLEGHENY, PENNSYLVANIA.

WAGON RUNNING-GEAR.

SPECIFICATION forming part of Letters Patent No. 509,354, dated November 28, 1893.

` Application filed November 4, 1892. Serial No. 450,978. (No model.)

To all whom it may concern:

` Be it known that I, JAMES H. BAKER, acitizen of the United States, residing at Allegheny, in the county of Allegheny and State of Pennsylvania, have invented or discovered new and useful Improvements in Wagon- Gear, of which the following is a specification. In the accompanying drawings which make part of this specication, Figure l, is a plan of the blank from which the axle is made. Fig. 2, is a plan of the axle after it has passed through eccentric rolls. Fig. 3, is a front elevation of axle, bolster, spring bolster, center, spring bolster, braces and guide. Figs. 3a, 3b, 30, 3d, 3e, 3g-and 3h are sections on various lines of Fig. 3. Fig. 4, is a vertical section through spring bolster, braces and guide. Fig. 5, is a perspective of center piece. Fig. 6, isa plan of Fig. 3. Fig. 7, is aperspective of rear end of hound. Fig. 8, is a central longitudinal section of axle arm. Fig. 9, is a section of plate from which bolster is made. Fig. lO, is a plan of spring cap in bolster. Fig. l1, shows inward bend of spring.

l 'My invention relates to improvements in wagon gears, such as are usually called lumber or farm wagons. Such Wagons are nearly all made ofwood end then ironed with plates, straps, bolts, dto., which have rendered them expensive and liable to repairs.

The object of myinventionis to make them of metal, and decrease the number of parts and eliminate bolts and braces and to generally improve their quality as will hereinafter more vfully appear.

I take for illustration a hind gear, though what I shall describe will apply as fully to a front gear. When I name the bolster in this description, I mean that the same shall apply to what is called the sand board in the front gear. The piece which has projections reaching downward and resting on the springs, and therefore which comes between the bolster proper and the load, I will call a spring bolster. To make the axle I take a plate 1 of proper width and of even thickness seen in Fig. 1, and heating it I passit between eccentric rolls, and reduce it to about the section shown Yat Fig. 2. It may not always be necessary to reduce the part 2. The main thing is to get it heavy at 3, and lighter from there toward the center. If a blank is wanted wider between the arms, then the thin parte can be made by rolling sidewise. This is for the purpose of placing the extra weight only where needed. y I then press it into the form of Fig. 3a. At the point where the spring 5 is to rest on the aXle,I form the 'seat or cup 6 to contain the spring. a piece of preferably similar section, `and make the upper half ofthe arm 7 and having pressed the arm part into corresponding shape to meet the axle part, and havinga projection 8, I weld the arm portion to the corresponding portion of. the axle, having first trimmed the edges from the shoulder out to give the requisite taper. I prefer to place a short round section 9 in the semi-tubular parts at the shonlderof the arms 10, as this makes the welding easier and the arm stronger at the critical point, and closes one end of what is to be the oil chamber l1. A similar piece may be welded in the end l2, of the arm, to make'the threaded part or the end welded without it and avnnt inserted. The rest of the arm can be welded along the sides. For some work the thickness of the plate, to make the axle would not be reduced from the shoulders outward but made solid by having the piece 9 extend to the end. For the Very best results the changing form of section should be about as Fig. 2. The special features of this axle are its lightness between the arms, and strength at the shoulder,and the projection 8 carried up to engage with the bolster 12, so that any inclination of the arm to bend behind the shoulder, will be checked by the vupward projections being held from giving in toward each other by endwise pressure of the bolster. As the end pressure of these projections cannot Well be brought directly against the ends of the bolster I secure them by riveting.

To make the bolster I now take a channel section with preferably reinforced edges seen at Fig. 3b. This is made by'first rolling a plate 12, and then pressing it into shape Fig. 3f for the bolster. This reinforcing of the edges of the flanges of the channel renders it much stronger and therefore makes it possible to use a lighter bolster to a given strength. The same is true of the spring bolster described ICO strength from a given weight. At the shoulders of the arms, where the depth is limited to a reasonable diameter of the arm I mass the metal and increase the depth rapidly from that point inwardly.

I claim the parts in detail and in combination as follows:

l. In a wagon gear, a metallic axle and a separate overlying metallic bolster; said axle and said bolster being connected by projections from the shoulders of the arms of the axle, said projections being integral with said arms, substantially as described.

2. In a Wagon gear, a metallic axle and a separate overlying metallic bolster; said axle and said bolster being connected by projections from the shoulders of the armsof said axle, said projection being integral with said arm and also by a metallic piece intermediate between said arms, substantially as described.

3. In a wagon gear a metallic axle having seats for springs formed integral therewith by the sides of the axle at these points, substantially as described.

4. In a wagon gear, a metallic axle having seats integral therewith for springs and guides with openings in them for the spring bolster guides to work in, substantiallyas described.

5. In a wagon gear, the combination of a metallic bolster, a metallic axle having a seat to contain one end of a spiral spring, said seat lhaving an upward projection to receive the Y end of a spiral spring, substantially as described.

6. In a wagon gear, the combination of a channel axle and a channel bolster, said axle and bolster being connected by projections from the shoulders of the arms of said axle, substantially as described.

7. In a wagon gear a metallic bolster chan-V nel shaped in section having the lower edges of the channels reinforced in section, substantially as described.

8. In a wagon gear a metallic cap to receive the upper part of a coil spring and having an opening in its edge to insert the spring, substantially as described.

9. I n a wagon gear a channel shaped metallic bolster having openings down through the top of the bolster to admit the downward projections from the spring" bearing bolster,

f substantially as described.

10. In a wagon gear a spring bearing bolster of channel-section having guides extending from each side downward and united to a guide rod arranged to slide vertically in guides attached to the axle, substantially as described.

l1. In a wagon gear, the combination of a metallic axle; a separate overlyingmetallic bolster, and hounds connected to said axle and bolster, the vertical sections of said hounds being of sufficient depth at their axle ends to extend substantially from the top of the bolster v to the bottom of the axle, substantially as described.

12. In a wagon gear 'a metallic axle, a metallic bolster, and metallic hounds riveted thereto, the ends of the hounds being suitably shaped, at that point into one hall' of the coil spring casing, substantially as described.

13. In a wagon gear a metallic axle and a metallic bolster secured in -the centerlby a metal center piece secured thereto, the, latter having an opening for the reach and having anges on the edges set at right angles wlth the line of the axle, substantially as described.

14. A metallic axle; a separate over lying metallic bolster and a vertical plate, having flanges turned at'right angles to the line of said axle and bolster and connecting said axle and bolster at a point intermediate between the shoulders of the arms, substantially as described. l

15. A metallic axle; a separate overlying metallic bolster, and a vertical plate at apoint JAMES II. BAKER.

Witnesses:

WILLIAM BEAI., WILLIAM L. PIERCE.

Images