US1219465A

US1219465A - Brake-shoe.

Info

Publication number: US1219465A
Application number: US13095016A
Authority: US
Inventors: John Jacob Kinzer
Original assignee: PITTSBURG BRAKE SHOE Co
Current assignee: PITTSBURG BRAKE SHOE Co
Priority date: 1916-11-13
Filing date: 1916-11-13
Publication date: 1917-03-20
Anticipated expiration: 1934-03-20

Description

.l. KINZER.

B'RAKE SHOE.

APPLICATION FILED NOV. 13. I916- Pate11ted Mar. 20, 1917.

WITNESSES UETED STATES PATENT @Fls JOHN JACOB KINZER, OF WILDWOOD, PENNSYLVEaNIA, ASSIGNOR TO PITTSBURG BRAKE SHOE COMPANY, OF PITTSBURGH, PENNSYLVANIA, A C-ORPOEATIGN QF lPENNSYL- VANIA.

BRAKE-SHOE.

Specification of Letters Patent.

Patented Mar. 29, 1917.

To all whom it may concern.

Be it known that 1, JOHN JACOB Krnzmz, a citizen of the United States, and resident of VVildwood, in the county of Allegheny and State of Pennsylvania, have invented a new and useful Improvement in Brake Shoes; and I do hereby declare the following to be a full, clear, and exact description thereof.

My invention relates to brake-shoes, and has special reference to brake-shoes which are provided with a separate back for fitting against and supporting the body or wheel bearing portion of the shoe.

The object of my invention is to provide a cheap, simple and efiicient form of a separable backfor a brake-shoe which will be formed of metal, and of such a material and shape for being easily and quickly attached to the body of the shoe, as well as one which can be easily and quickly detached from such body when the body is worn out or for any other purpose. A further object of my invention is to provide such a separate back, whereby the body or wheel bearing portion of the shoe will be securely and firmly held by such back, notwithstanding the form of such body, as well as such a back, which will permit of its being used over again, after the body has been worn out or removed from the back.

To these ends my invention consists, generally stated, in the novel arrangement, construction and combination of parts, as hereinafter more specifically set forth and described and particularly pointed out in the appended claims.

To enable others skilled in the art to which my invention appertains to construct and use my improved brake-shoe, I will describe the samemore fully, referring to the accompanying drawing, in which I Figure 1 is a side elevation of a brake-shoe embodying my invention;

Fig. 2 is an end elevation of the same;

Fig. 3 is a cross-section on the line 3-3 of Fig. 2;

Fig. 4 is a cross-section on the line l 1 of Fig. 2;

Fig. 5 is a plan view of the back before bent to finish to form; and

Fig. 6 is a side elevation of the same.

Like symbols of reference herein indicate like parts in each of the figures of the drawing.

As illustrated in the drawing, A shows my improved brake-shoe, which comprises the supporting back member a, body or wheel bearing portion 6, which is supported by such back, and the supporting lug 0, through which the brake-shoe is connected in the usual manner to the ordinary approved brake-head or hanger (not shown).

The back member a is cut to the size desired from a piece or sheet of spring metal,

such as steel, to form the blank (not shown), and then such blank is pressed or stamped to shape to form the curved back-wall 1, the bearing surfaces 2, with its recesses 3, and the flange portion or end wall l,

After the back member a has been so formed, the supporting lug o is connected to the shoe A in any suitable manner, and can be formed of metal, such as steel. As shown, the lug c is separated from the backwall 1, and is attached thereto by having supporting legs or standards 5 thereon passed through slots 6 in such back-wall. The ends 7 of such legs 5 are bent under such wall and against the same to hold the lug c to such back-wall.

The body or wheel bearing portion Z) can be formed of any suitable material, such as metal, or composition of materials, and can be formed of one piece or a number of pieces of sections or blocks, as described, such as is shown, described and claimed in my applications filed December 30, 1915, Serial Nos. 69,377, 69,378 and 69,37 9, such piece or pieces being so shaped or formed for having the proper curvature to the wheel when secured in place within the shoe A.

In the formation of my improved brakeshoe A, the curved back-wall 1 is sprung suflicicntly open in any suitable manner, so that the body 6 can be placed between the end walls t on said back wall and then such back is allowed to spring back to shape. This will cause the back-wall 1 and the end walls 4 thereon to engage tightly and firmly against the body 7) and end faces 7 on such body, respectively, to thereby securely clamp or hold such back and body members to gether and thus form the finished brake-shoe A. In thus applying the back-member a to the body 5 suitable seats or recesses 8 can be formed in the back wall 9 of such body for the reception of the ends 7 on the legs 5 of the lug c, which will thereby allow such back wall to fit neatly and completely against the back-wall 1 of the back member a. The back-wall 9 of the body .5 can also be provided with the seat 10, within which the back wall 1 of the back member a fits, to thus enable a smooth back to be formed on the shoe A, and also assist in holding the back member and body together when such back member is connected or clamped to such body, as above described.

When the body 6 is worn out or down to the limit, such body can be removed easily and quickly by supporting the ends 4. of the clamping back member a, and then pressing down on the convex side of such member, which will tend to spring out the curved back and open the same. the body I) to be dropped out or conveniently and readily removed from the back member a, thereby allowing such back to spring back to shape and leaving the same in absolutely good condition, thus enabling it to be used over again as above described in clamping similar bodies for a number of times. v

It will be evident that various forms of body members can be used and when sections or blocks are used to form the body member of the shoe, they can be previously formed to shape for forming the completed body when the back member is clamped or secured around the same. It will also be evident that suitable sections or blocks can be used with filling material between the same, to form such body member and such filling material may be plastic.

Various other modifications and changes in the design and construction of my improved brake-shoe, and in the back employed, may be resorted to, without departing from the spirit of the invention or sacrificing any of its advantages.

t will thus be seen that after my improved brake-shoes have been in use and have become worn down on their bodies, they can be returned to the manufacturer to enable the back-member to be used over again by removing the body-member therefrom, and without injuring or fracturing such back-member, which will permit the body members to be used with the same back a number of times, and thereby greatly cheapen the cost of manufacture of this class of shoes.

It will also be seen that my improved brake-shoe can be easily and quickly manufactured, assembled for use and taken apart for permitting the continued use of the back member after the body of the same has be come worn or for any other cause, while such shoe as formed with such separate and removable back will also be strong and durable when in use and will be able to withstand knocks or blows of any kind. The shoe will also permit of use until its body is practically worn entirely away, and its This will allow back member will not be permanently attached to the body, but will have a clamping 7 connection therewith, so that such back mem her being formed of spring metal will enable it to spread open to receive the body for clamping or removing such body.

What I claim as my invention and desire to secure by Letters Patent is- 1. In a brake-shoe, the combination with the wheel bearing portion, of a back member for holding said portion, said back member being capable of retaining and permitting the removal of said portion by a spring action.

2. In a brake-shoe, the combination with the wheel bearing portion, of a back member formed of spring metal for holding said portion, said back member being capable of retaining and permitting the removal of said portion by a spring action.

3. In a brake-shoe, the combination with the wheel bearing portion, of a back member capable of retaining and permitting the removal of said portion by a spring action, and having means thereon for holding said portion and member together.

4. In a brake-shoe, the combination with the wheel bearing portion, of a back member formed of spring metal, said back member being capable of retaining and permitting the removal of said portion by a spring action and having means thereon for holding said portion and member together.

5. In a brake-shoe, the combination with the wheel bearing portion, of a back member capable of retaining and permitting the removal of said portion by a spring act-ion and having means thereon for clamping said portion and member together.

6. In a brake-shoe, the combination with the body or wheel engaging member, of a back member formed of spring metal, said back member being capable of retaining and permitting'the removal of said portion by a spring action and having means thereon for clamping said portion and member together.

7 In a brake-shoe, the combination with the body or wheel engaging member, of a back member capable of retaining and permitting the removal of said portion by a spring action and having means on the ends of the same for holding said portion and member together.

8. In a brake-shoe, the combination with the body or wheel 'engaging member, of a back member formed of spring metal, said back member being capable of retaining and permitting the removal of said portion by a spring action and having means on the ends of the same for holding said portion and member together.

9. In a brake-shoe, the combination with the body or wheel engaging member, of a back member capable of retaining and permitting the removal of said portion by a spring action and having means on the ends of the same for clamping said portion and member together.

10. in a brake-shoe, the combination with the body or wieel engaging member, of a back member formed of spring metal, said back member being capable of retaining and permitting the removal of said portion by a spring action and having means on the ends of the same for clamping said portion and member together.

11. In a brake-shoe, the combination with the body or wheel engaging member, of a back member engaging therewith, said back member being adapted to be sprung against and removed from said body member and having a flange portion thereon for engaging with said body member to clamp said members together.

12. In a brake-shoe, the combination with the body or wheel engaging member, of a back member engaging therewith, said back member being formed of spring metal for being sprung against and removed from said body member and having a flange portion thereon for engaging with said body member to clamp said members together.

13. In a brake-shoe, the combination with the body or wheel engaging member, of a back member engaging therewith, said back member being adapted to be sprung against and removed from said body member and having flange portions 011 the ends of the same for engaging the ends of the body member to clamp said members in place.

14. In a brake-shoe, the combination with the body or wheel engaging member, of a back member engaging therewith, said back member being formed of spring metal for being sprung against and removed from said body member and having flange portions on the ends of the same for engaging the ends of the body member to clamp said members in place.

15. In a brake-shoe, the combination with the body or wheel engaging member having a recess in the back of the same, of a back member engaging with said body and having its back wall fitting within said recess, said back member being adapted to be sprung against and removed from said body member.

16. In a brake-shoe, the combination with the body or wheel engaging member having a recess in the back of the same, of a back member engaging with said body and having its back wall fitting within said recess, said back member being formed of spring metal for being sprung against and removed from said body member.

In testimony whereof, I, the said JOHN Jason KINZER, have hereunto set my hand.

JOHN JACOB KINZER.

Witnesses 2 J. N. Comm, J OHN F. VVILL.

Gopies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents Washington, D. G.