US841694A

US841694A - Brake.

Info

Publication number: US841694A
Application number: US31880906A
Authority: US
Inventors: Buren Van Lamb
Original assignee: KEYSTONE BRAKE SHOE Co
Current assignee: KEYSTONE BRAKE-SHOE Co; KEYSTONE BRAKE SHOE Co
Priority date: 1906-05-26
Filing date: 1906-05-26
Publication date: 1907-01-22
Anticipated expiration: 1924-01-22

Description

No. $111,694'I PATENTED JAN. 22, 1907. VAN BURBN LAMB, BRAKE.

APPLICATION FILED MAYZG, 1906.

2 SHEETS-SHEET l.

WITNESSES.'

' [NVE/1T l? t l v ATTORNEYS. I

PATENTED JAN. 22, 19o?.

VAN BUREN LAMB.

BRAKE.

APPLICATION FILED nu 2s. 190s.

2 SHEETS-SHEET 2.

V /Nl/ENT A TTR/VEYS.

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UNITED STATES PATENT 'oEEicE VAN BUREN LAMB, OF NEW HAVEN, CONNECTICUT, ASISIGNOR TO KEYSTONE BRAKE-SHOE COMPANY, NEW YORK, N. Y., A

BRAKE.

Specification of Letters Patent.

Patented Jan. 22, 1907.

Application filed May 26,1906. Serial No. 318,809.

To all!) whom it may concern:

Be it known that L'VxN BUREN LAMB, residing at New Haven, in the county of New Haven and State of Connecticut, have invented certain new and useful Improveu ments in Brakes, of which the following is and durability of construction.

Another object is to provide means of the` above type in which the metal is economically consumed.

Another object is to provide means of the y above type in which the component members jas are readily taken apart and reassembled.

Other objects will be'iii part obvious and in part pointed out hereinafter.

The invention' accordingly consists in the features of construction, combinations of elements, and arrangement of parts which will be exemplified in the embodiment thereof hereinafter described and the scope of the application of which will be indicated'in thev following claims.

In the accompanying drawings, wherein is shown one of the various possible embodiments of this invention, Figure 1 is a side elevation thereof. Fig. 2 is a rear view of parts shown in Fig. 1. Fig. 3 is a perspective view of a portion of a head. Fig. 4 is a similar view of another portion of a head.

Similar reference characters refer to similar parts throughout the several views of the drawings.

Referring now to Fig. 1 of thel drawings, there is shown a brake-head 1, comprising the main and auxiliary portions 2 and 3, respectively forming the subject-matter of Figs. 3 and 4 of the drawings.

Portion 2 comprises a body portion having formed thereon the means 4 whereby the head is mounted upon the brake-beam or other supporting member. Portion 2 is provided with a side flange or web 5 upon one side of the head and upon the other side with a short flange or abutment 6, the function of which will be hereinafter described. Extending laterally from portion 2 isaprojection 7 of tapering form and provided with a keyway 8., and likewise extending in a general lateral direction from this portion of the head are the end shoulders 9, re-

cessed as shown at 10.

The'auxiliary or 4complementary portion 3 of the head (shown in Fig. 4 of the drawings) is provided with a side web \11, adapted to iit beneath the abutment 6 upon portion2 and rest within the recesses 10. The positioning of the parts in this relation is brought about by thrusting the portion 3 toward the portion 2, the projection 7 passing through a suitable recess or mortise 12 formed in the former portion.

Portions 2 and 3 are collectively provided with a recess 13, having undercut walls oonverging toward each end of the head and of decreasing depth in these directions, as is best shown in Fig. 1 of the drawings.

The shoes 14 used with the above head are preferably divided transversely into two portions 15 and 16 and are provided upon their rear surfaces with tenons adapted, with the parts in assembled relation, to fit closely the recess or mortise 13, formed within the forward face of the head, as above described. Each shoe is, moreover, provided upon it forward face or the face toward the wheel with a niortise Whichis the counterpart of the tenon immediately above mentioned and receives therein the similar tenen-upon another shoe member 17, transversely divided at a point offset with respect to the point of division of the shoe first mentioned.

The method of use of the above-described embodiment of this invention is substantially as follows: Assuming the parts to be in the condition shown in Fig. 1 of the drawings and assuming that the wear upon the double shoehas extended to a point within the `shoe member 14, such wear being permitted without dropping of the parts by reason of the dovetalled conformation of the joint between the shoe members', the portions of the head are laterally separated, as by withdrawing the springkey 1S, which normally holds these parts snugly together, and removing the portions of the worn shoe. These portions are then fitted within the portions of a new shoe identical with that removed in its original form, and the tenon upon the rear surface of the new shoe is fitted within the head and the parts reassembled portion adjacent each end thereof, one of the vrear surface with a similar projecting portion,

in a manner which will be clear fromv the drawings, taken in connection with the above description.

It will thus be seen that there is provided a simple construction in which the several objects of this invention are attained. The v metal of each shoe is entirely consumed, quite doing away with the scrapping of parts or the dropping of the same upon the road-bed, and yet all `parts of-the brakingdevice are rigidly held 1n assembled conditlon. The strength of this assemblage of parts will be obvious from a consideration of their interiitting nature, whereby dependence upon retaining devices is substantially done away with. The parts, moreover, are readily taken apart by the removal of the key 18 and may be quickly reassembled, all without the use of special tools.

As many changes could be made in the above construction and many apparently widely different embodiments of this invention could be made without. departing from the scope thereof, it is intended that all matter contained in the above description or shown in the accompanying drawings shall be interpreted as illustrative and not in a limiting sense. It is also to be understood that the langua e used in the following claims is intende to cover all of the generic and specific features of the invention herein described and all statements of the scope of the invention which as a matter of language might be said to fall therebetween. Y

Having described my invention, what I claim as new, and desire to secure by Letters. A Patent, is-

l. In construction of the class described, in combination, a brake-shoe having upon its rear surface a projecting portion the lateral walls of which are undercut, a second brake-shoe fitted about said projecting portion and provided upon its rear surface with a similar projecting portion, a brake-head` comprising two laterally-separable portions each of which is adapted to fit one of the lateral walls of said last-mentioned projecting portions of said brake-head being provided with a projection extending through the other portion of said head, and means adaptl ed to hold the portions of said head in assembled relation.

2. In construction of the class described, in combination, a ,brake-shoe having upon its rear surface a projecting portion of decreasing thickness toward the ends of the shoe and the lateral walls of -which are undercut, a second brake-shoe fitted about said projecting portion and provided upon its a. brake-head comprising two laterally-separable portions each of which is adapted to fit one of the lateral walls of said last-mentioned projecting portion adjacent each end l thereof, one of the portions of said brakehead being provided with a projection extending through the other portion of said head, and means adapted to hold the portions of said head in assembled relation.

3. In lconstruction of the class described, in combination, a brake-shoe having upon its' rear surface a projecting portion the lateral walls of which are undercut and converge toward the ends of the shoe, a second brakeshoe fitted about said projecting portion and provided upon its rear surface with a similar projecting portion, a brake-head comprising two laterally separable portions each of which is adapted to fit one of the lateral walls of said last-mentioned projecting portion ad'- jacent each end thereof, one of the portions" of said brake-head being provided with a projection extending through the other portion of said head, and means adapted to hold the portions of said head in assembled rel-ation.

4. In construction of the class described, in combination, a brake-shoe provided upon its rear surface with a projecting portion the lateral walls of which are undercut and converge toward each end of theshoe, a brake-. l

head comprising two laterally-separable por-" tions each of which is adapted to fit one of the lateral Awalls of said projecting portion adjacent each end thereof, one ortion of said brake-head being provided with a projection passing through the othenportion thereof,

and means adaptedto hold theportions of said head in assembled condition. l

5. In construction of the class described, in combination, a brake-shoe provided upon IOC its rear surface with a projecting portion 'of decreasing thickness toward the ends of. the shoe and the lateral walls of which are undercut and converge toward each end of the shoe, a brake-head comprising two laterallyseparable portions each of which is adapted to fit one of the lateral walls of said projecting portion adjacent each end thereof, one portion of said brake-head being provided IXO with a projection passing through the other I portion thereof, and means adapted to hold the portions of said head in assembled condition.

6. In construction of the class described, in combination, a brake-shoe provided upon its rear surface with a projecting portion of decreasing thickness toward the ends of the shoe and the lateral walls of which are undercut, a brake-head comprising two laterallyseparable portions respectively fitting said lateral walls adjacent each end thereof, one

of said portions Vof saidhead being provided with aprojection extending through the other portion of said head, and means holding the portions of said head in assembled condition.

7. In construction of the class described, in combination, a brake-shoe having upon its rear surface a proj ecting, portion the lateral walls: of which are undercut, a second brakeshoe fitted about said projecting portion and Aprovided with a similar projecting portion upon its rear surface, a brake-head comprising tWo'laterally-separable portions each of which is adapted to fit one of the'undercut surfaces adjacent each end thereof, one of the A ortions of said. head being provided with aterally-extended ends between which the other portion of said head is fitted, and .means adapted to hold the portions of said `head in assembled condition.

v8. In construction of the class described,v

.in combination, a brake-shoe having upon its .rear surface a projecting portion the lateral walls of which are undercut and converge toward Veach end of the shoe, a second brake- 4shoe fitted about said projecting portion and -p'rovided with a similar projecting portion upon'its rear surface, a brake-head comprising-two laterally-separable portions each of -Which is adapted to fit one of said undercut Ysurfaces adjacent each end thereof, one of the portions of said head being provided with llaterally-extended, ends between which the .other portion of said head is fitted, and

-means .adapted to hold the portions of said -head in assembled condition.

lateral walls of which are undercut and convergel toward each end of the shoe, a brake head comprising two laterally-separable portions adapted respectively to fit said undercut surfaces adjacent each end thereof, one portion of said head being provided with lateru ally-extending ends and a-laterally-extend- -.,lat'eral.walls of which are undercut, a brake-- -ing central portion, and the other portion of said head being adapted to fit between said ends and under said central portion, and

means adapted to hold the portions of said head in assembled condition.

10. In'construction of the class described,

Tin combination, a brake-shoe provided upon its rear surface with a projecting portion the head comprising two laterally-separable portions adapted respectively to fit said under- 'cutwalls adjacenteach end thereof7 one of said portions of said head being provided with a projection extending through the other portion thereof, 'and means adapted to hold the portions of said head in assembled condition.

11. In construction of the class described,

`in combination, a brake-shoe provided upon its rear surface with a projecting portion the lateral walls of which are undercut, a brakehead comprising a pair of laterally-separable portions adapted respectively to fit said undercut walls adjacent each end thereof, one of the portions of said head being provided with laterally-extended ends between which the other portioii'is adapted to fit, and means adapted to hold the porticns of said head in assembled condition.

l2. In construction of the class described, in combination, abrake-shoe provided upon its rear surface With-a projecting portion the lateral walls of which are undercut, a brakehead comprising two laterally-separable portions each of which is adapted to fit one of said undercut surfaces adjacent each end thereof, one portion'of said head being provided With,laterally-extended ends and a laterally extended central portion, and the other portion of said head being adapted to fit between said ends and under said central portion, and means adapted to hold the portions of said head inassemblcd condition.

13. In construction of the class described, in combination, a brake-shoe provided upon its rear surface with a projecting portion the lateral walls of which are undercut, a brakehead comprising two laterally-separable portions adapted respectively to fit said undercut walls adjacent each end thereof, one of said portions of said head being provided with a projection extending through the other portion thereof, and a key passing through said projection and 'adapted to hold the portions of said head in assembled condition.

14. In construction of the class described, in combination, a brake-shoe provided upon its rear surface with a projecting portion the lateral Walls of which are undercut, a brakehead comprising two laterally-separable portions adapted respectively to fit said 'under-` cut walls adjacent each end thereof, one of said portions of said head being provided with a. projection extending through the other portion thereof, and a spring-key passing through said projection and spaced from said head and resting against the lateral surfaces thereof adapted to hold the portions in assembled condition.

15. In construction of the class described,

in combination, a brake-slice having upon its rear surface a projecting portion the lateral walls of which are undercut, a second brakeshoe fitted about said projecting portion and provided upon its rear surface with a similar projecting portion, a brake-head comprising two laterally separable portions each of which is adapted to fit one of the lateral walls of said last-mentioned projecting portion adjacent each end thereof, one of the portions of said brake-head being provided with a projection extending through the other portion of said head and one portion of said head being provided with laterally-extended ends between which the other portion is adapted to fit, and means adapted to hold the portions of said head in assembled condition.

16. In construction of the class described, in combination, a brake-shoe provided upon its rear surface with a projecting portion the lOS lateral walls of which are undercut and con-` verge toward each end ofthe shoe, a brakehead comprising two laterally-separable portions each of which is adapted to fit one of the lateral walls of said projecting portion adjacent each end thereof, one portion of said brake-head being provided with a projection passing through the other portion thereof and one portion of said head being provided with laterally-extended ends between which the other portion is adapted to fit, and means adapted to hold the portions of said head in assembled condition.

17. In construction of the class described, in combination, a brake-shoe provided upon its rear surface with a projecting portion of decreasing thickness toward the ends of the shoe andthe lateral walls of which are undercut and converge toward each end of the shoe, a brake-head comprising two laterallyseparable portions each of which is adapted to fit one of the lateral walls of said projecting portion' adjacent each end thereof, one

portion of said brake-headbeing providedl with ya projection passing through the other portion thereof and one portion of said head being provided with laterally-extended ends between which the other portion is adapted to fit, and means adapted to hold the portions of said head in assembled condition.

18. In construction of the class described,

in combination, a brake-shoe having upon its rear surface a projecting portion the lateral walls of which are undercut, a second brake-shoe fitted about said projecting portion and provided upon its rear surface with a similar projecting portion, a brake-head comprising two laterally-separable portions each of which is adapted to fit one of the lateral walls of said last-mentioned projecting ortion adjacent each end thereof, one ofthe i portions of said brake-head being provided with a projection extending through the other portion ofsaid head and one portion of said head being provided with laterally-extended ends and a laterally-extended central portion, the remaining portion of said head being adapted to it between said ends and under said central portion, and means adapted to hold the portions of said head in assembled condition. v

19. In construction of the class described, in combination, a brake-shoe having upon itsrear surface a projecting portion the lateral walls of which are undercut, a second brake-shoe fitted about said projecting portion and provided upon its rear surface with a siinilar projecting portion, a brake-head comprising two laterally-separable portions each of which is adapted to fit one of the lateral walls of'said last-mentioned projecting portion adjacent each `end thereof, one of the portions of said brake-head being provided with a projection eXtendin other portion of said head an one portion of said head being provided with laterally-extended ends and alaterally-extended central under said central portion, ,and a key passing through said projection adapted to hold the portions of said head in assembled condition.

20. In construction of the class described,l in combination, a brake-shoe having upon its rear surface a projecting portion the lateral walls of which are undercut, a second brake-shoe fitted about said projecting portion and provided upon its rear surface with through the portion, the remaining portion of said head being adapted to fit between said ends and a similar projecting portion, each of said i shoes being transversely divided into two parts, a brake-head comprising` two'laterally-seiarable portions each of which is ada-ptj -A tion and pro' ided upon its rear surface with a similar projecting portion, each of said shoes being transversely divided into two parts on lines offset with respect one to another, a brake-head comprisingtwo laterallyseparable portions each of which is ada ted to t one of the lateral-walls of said' astmentioned projecting portion adjacent each end thereof, one of the portions of said brakehead being provided with a projection eX- tending through the other portion of said head, and means adapted to hold the portions of said -head in assembled relation.

In testimony whereof I affix my signature in the presence of two witnesses.

VAN BUREN LAMB.

Witnesses:

R. S. BLAIR, A. G. PREVIN.