US1075848A - Reinforced brake-shoe. - Google Patents

Description

J. J. E.

REINFORG E SHOE.

APPLICATION UG.19, 1912.

' 1,0?5,848, Patented 0015.14, 1913.

JOHN J. MORSE, OF ST. LOUIS, MISSOURI.

REINFORCED BRAKE-SHOE.

Specification of Letters Patent.

Patented Oct. 14,1913.

Application filed. August 19, 1912. Serial No. 715,706.

To all whom it may concern:

Be it known that 1, JOHN J. Morse, a citizen of the United States, residing in the city of St. Louis and State of Missouri, have invented certain new and useful Improvements in Reinforced Brake-Shoes, of which the following is a specification.

This invention relates to certain new and useful improvements in brake-shoes, and has for its object to provide an improved brake-shoe having novel and efficient means for reinforcing the back of same, so that the structure is strengthened at points subjected to the greatest strain and, also, so that in case the brake-shoe becomes broken in use the parts of same will be held together by the reinforcing means.

In the accompanying drawings forming part of this specification, in which like numbers of reference denote like parts wherever they occur, Figure l is a top plan view of a brake-shoe embodying the present inven tion; Fig. 2 is a sectional view on the line 2-2, Fig. 1; Fig. 3 is a sectional view on the line 3-3, Fig. 1; and, Fig. 4 is a skeleton perspective view of the reinforcement.

Referring to the drawings, the brake-shoe is designated 1, and is preferably formed of cast-iron, though, if desired, may be formed of relatively hard and soft metals as is frequently the case in order to obtain increased frictional and wearing qualities, said brakeshoe having the usual end stop lugs 2 formed on the back thereof to brace the ends of the brake-head (not shown in the drawings) and bearing the usual key lug 3 which has an opening 4; for the reception of the brake-shoe key or pin (not shown), which opening 4 is preferably arranged to extend longitudinally of said brake-shoe.

The back'of the brake-shoe 1 is reinforced by means of a pair of rods 5 formed of wrought, ductile, or other tough metal, though, of course, bars, wires, or the like may be used in place of the rods 5. These rods 5 are located at or adjacent to the back of the brake-shoe and are preferably arranged to extend longitudinally of the brake-shoe. At the middle of the brakeshoe the rods 5 are spaced apart and are arranged to extend substantially parallel to each other underneath the side-walls 6, respectively, of the lugs 3. The rods 5 converge from the lug 3 so as to meet at the points 7 intermediate the lug 3 and each lug 2, at which points 7 said rods are bent or twisted around each other or otherwise connected as best seen in Figs. 1 and 2. From the points 7 where the rods 5 are bent or twisted around each other, the end portions of the rods 5 diverge from the points 7 and then extend substantially parallel to each other toward the ends of the brakeshoe where the extreme ends of said rods are preferably bent upwardly so as to project into the lugs 2, thereby anchoring the ends of the rods 5 firmly in the ends of said brake-shoe. The rods 5 greatly strengthen the brake-shoe and by reason of same being bent or twisted around each other intermediate the lug 3 and each lug 2, the brakeshoe is greatly strengthened at its weakest parts, namely the parts intermediate the lugs 3 and each lug 2. The lug 3 is also reinforced by means of a rod 8 formed of wrought, ductile, or other tough metal, or a plurality of such rods, a pair of same being depicted in the drawings for the purpose of illustration. Each rod 8 is bent into a U- shaped configuration, so as to straddle the opening 4 in said lug 3 and to have the ends project into the body of the brake-shoe, which ends are bent so as to form stirrups 9, through which the middle parts of the rods 5 pass, as best seen in Figs. 3 and l, thereby anchoring the ends of said rod 8 firmly in the body of the brake-shoe 1.

It should be understood that bars, wires, or the like, formed of wrought, ductile, or other tough metal may be substituted for the rods 8, if so desired.

It should be noted in the drawings that, for the purpose of illustration, the rods 5 have been bent or twisted around each other at the points 7 intermediate the lug 3 and each lug 2 in such a manner that the middle art of each rod 5 is located near one side of the back of the brake-shoe while the ends of same are located near the opposite side of the back of the brake-shoe, but it should be understood that said rods 5 may be bent or twisted in any other manner at the points 7 intermediate the lug 3 and each lug 2 so that the middle point of each rod 5 and the ends thereof will be located near the same side of the back of the brake-shoe.

Heretofore, brake-shoes have been reinforced by means of rods which were bent or twisted together only at a point underneath the key lug and spaced apart from the key lug to the ends of the brake-shoe, and the key lug was reinforced by means of a ring-shaped rod or a plurality of ringshaped rods through which the twisted parts of the rods in the back of the brakeshoe extended, but, when so reinforced, the twisted parts of the rods in the back of the brake-shoe together with the ring-shaped rod or rods in the key lug made such a bulk of the wrought metal underneath the key lug that the cast metal was chilled too quickly and caused to blow at this particular point, when the cast metal was poured around same. his defeated the purpose of the reinforcement in the middle part of the back of the brake-shoe.

rods 5 and '8.

3 and each end iug 2 renders the brake-shoe stronger at these points than when the rods extend straight between the key lug 3 andthe end lugs 2.

I claim: 7

1. A brake-shoe having a pair of rods located adjacent to the back thereof, said rods being spaced apart at the middle and ends of the brake-shoe and twisted together intermediate the middle and ends "of same.

2. A brake-shoe having a lug at each end thereof and a pair of rods located adjacent to the back of same, said rods being spaced apart at the middle and ends of the brakeshoe and twisted together intermediate the middle of the brake-shoe and each end lug.

3. A brake-shoe having a lug at each end thereof and a pair of rods located adjacent to the back of same, said rods being spaced apart at the middle and ends of the brakeshoe and twisted together intermediate the middle of the brake-shoe and each lug, the ends of said rods being anchored in said end lu s.

i. A brakeshoe having a middle lug with an opening extending therethrough, a pair of rods located adjacent to the back 'of the brake-shoe, said rods being spaced apart at the middle and ends of the brake-shoe and being bent inwardly intermediate said middle lag and each end of the brake-shoe so that the bent parts of said rods contact with each other, and a U-shap'ed rod located in said iniddie lug and straddling the opening therein.

5. A brake-shoe having a middle iug with an opening extendingtherethrough, a pair of rods located adjacent to the back of the brake-shoe,' said rods being spaced apart at the middle and ends of the brake-shoe and secured together intermediate said middle lug and each end of the brake-shoe, and a This objectionable feature is obviated by the present invention in which the rods 5 are spaced apart at the middle of the brake-shoe 5 so as not to form a bulk of wrought metal with the rods 8, thus preventing the cast; metal from becoming chilled too quickly or I from blowing when poured around the? The fact that the rods 5 are i twisted together intermediate the key lug;

U-shaped rod located in said middle lug and straddling the opening therein, the ends of said U-shaped rod being embedded in the body of the brakeshoe and bearing stirrups to receive said first-mentioned rods.

6. A brake-shoe having a middle lugwith an opening therethrough, a pair of rods lo cated adjacent to the back of the brake-shoe, said rods being spaced apart at the middle and ends of the brake-shoe and twisted together intermediate said middle lug and each end of the brake-shoe, and a plurality of U-shaped reds located in said middle lug and straddling the opening therein, theends of each of said U-shaped rods being embedded in the body of the brake-shoe and bearing sti'rrups to receive said first-mentioned rods.

7. A brake-shoe having a lag at each end thereof and a middle lug with an opening extending therethrough, a pair of rods 10- ca'ted adjacent to the back of the brake-shoe and having their ends anchored in said end lugs, said rods being spaced apart at the middle and ends of the brake-shoe and twisted together intermediate said middle lug and each end lug, and a U-shaped'rod located in said middle lug and straddling the opening therein, the ends of said U-shaped r03 being anchored to said first-mentioned r0 s.

8. A brake-shoe having a lug at each end thereof and a middle lug with an opening extending therethrough, a pair of rods located adjacent to the back of the brake-shoe and having their "ends anchored in said end lugs, said rods being spaced apart at the middle and ends of the brake-shoe and twisted together intermediate said middle lag and each end lug, and a plurality of 'U-shaped rods located in said middle lug and straddling the opening therein, the ends of each of said U-shaped rods being anchored to said first-mentioned rods.

9. p A brake-"shoe having a pair of rods .located adjacent to the back thereof, said rods being spaced apart at the middle and ends of the brake-shoe and connected intermediatethe middle and each end of same.

TO. A brake-shoe having a lug with an opening therein located intermediate the ends of the brake-shoe, a pair of rods located adjacent to the back of the brake-shoe, said rods being spaced apart underneath said lug and at the ends of the brake-shoe and being connected intermediate said lug and each end of the brake-shoe, and a u shaped rod located in said lug and straddling the opening therein, the ends of said FU-sha-ped rod being anchored to said first-mentioned rod.

11. A brake-shoe "having a lug with an opening therein located intermediate the ends of the brake-shoe, a pair of rods loeatecl adjacent to the back of the "brake-shoe,

apart underneath said rods being spaced of the brake-shoe said lug and at the ends and being connected intermediate said lug and each end of the brake-shoe, and a plurality of U-shaped rods located in said lug and straddling the opening therein, the ends of each of said U-shaped rods being anchored to said first-mentioned rods.

12. A brake-shoe having a lug with an opening therein located intermediate the ends of the brake-shoe, a pair of rods located adjacent to the back of the brake-shoe, said rods being spaced apart underneath said lug and at the ends of the brake-shoe and being connected intermediate said lug and each end of the brake-shoe, and a plurality of-U-shaped rods located in said lug and straddling the opening therein, the ends of each of said U-shaped rods being anchored to said first-mentioned rods, the ends of said first-mentioned rods being anchored in the ends of the brake-shoe.

13. A brake-shoe having a reinforcement embedded therein consisting of a pair of rods which have spaced end portions and a plurality of portions intermediate said end portions which are bent inwardly and are interlocked with each other.

14. A brake-shoe having a reinforcement embedded therein consisting of a pair of- JOHN J. MORSE.

Witnesses:

GEORGE Gr. ANDERSON, WALTER C. GUELs.

Copies of this patent may be obtained for five cents each, by Washington, D. G.

addressing the Commissioner of Patents,

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