US1929620A

US1929620A - Railway truck structure

Info

Publication number: US1929620A
Application number: US562540A
Authority: US
Inventors: Edwin G Busse
Original assignee: Chicago Railway Equipment Co
Current assignee: Chicago Railway Equipment Co
Priority date: 1931-09-12
Filing date: 1931-09-12
Publication date: 1933-10-10
Anticipated expiration: 1950-10-10

Description

Oct. 10, 1933. 5 5.511555 1,929,620

RAILWAY TRUCK STRUCTURE Filed Sept. 12. 1951 3 Sheets-Sheet 1 E. G. BUSSE RAILWAY TRUCK STRUCTURE Oct. 10, 1933.

Filed Sept. 12, 1931 3 Sheets-Sheet 2 qffa/weu Oct. 10, 1933. i E. G. BUSSE 1,929,620

RAILWAY TRUCK STRUCTURE Filed Sept. 12, 1931 3 Sheets-Sheet 3 ill/I] lNVEiVTOR.

Edwin Q Busse A TTORNE Y.

Patented Oct. 10, 1933 UNITED STATES RAILWAY TRUCK- STRUCTURE Edwin G. Busse, Chicago, 111., assignor to Chicago Railway Equipment Company, Chicago, 111., a corporation of Illinois Application September 12, 1931 Serial No. 562,540

11 Claims.

This invention relates to railway rolling stock and consists in novel guard, guide or support means for brake beams and. particularly the brake beams applied to trucks having no springplank.

Patent No. 1,650,931 issued to the present applicant November 29, 1927, illustrates a fourth point support for brake beams which is carried by an arm projecting inwardly from the truck side frame between the wheels. In this construction, however, it has been found that where a sufliciently long arm is provided to enable the support member to clear the wheels and brake rigging there is a tendency for the arm to work loose or break off due to vibration of the truck. Also the expense of casting such an arm integral with the side frame (which is highly desirable) increa .es the cost of the truck so out of proportion to the size of the additional feature that it is diflicult to have the feature adopted by railread companies.

The main object of the present invention is to provide means for carrying a brake beam guard, guide, or support member on the truck side frame between adjacent wheels and in proper functioning position without using therelatively long arm illustrated in the above mentioned patent. I attain this object substantially by forming a relatively short arm on the side frame and providing an outwardly extending bracket on the support member, or by offsetting the ends of the support member inwardly a suificient distance to clear the wheels and brake rigging and to extend beneath the brake beams.

In the drawings which illustrate the invention- Figure 1 is a top view of a portion of a truck illustrating one form of the invention.

Figure 2 is in part a vertical longitudinal view of the support member and its carrying struc- 49 ture looking from the inside of the truck outwardly, and in part aisection on the center line of the support member.

Figure 3 is an end view of one side of the truck frame with portions broken away to show the novel structure.

Figure 4 is a top view of a portion of a truck illustrating another form of the invention.

Figure 5 is a vertical longitudinal section taken on line 5-5 of Figure 4.

Figure 6 is an end view of the same with portions broken away.

- Figure 7 is a side view showing still another modification.

Figure 8 is a detail end view of the same with parts broken away.

Figure 9 is a top view of the same.

Figures 10 and 11 are views corresponding with Figures 2 and 3, respectively, but showing: the invention applied to a different type of truck.

In the truck illustrated in Figures 1 to 3 a short arm 1 projects inwardly between wheels'3 and is shown integral with the inside wall 2a of the hollow lower portion of the side frame 2 forming a pocket for housing the bolster springs (not shown). Arm 1 hasbiiurcations 4 on its inner end forming a recess 1a and provided with opposing laterally projecting lugs 5, and is reinforced by diagonal ribs 10a.

Arm 1 mounts a bracket indicated generally at 6 and having a body portion of inverted-U-shape including horizontal web 9 and depending legs 12 adapted to receive and position the brake beam guard, guide, or support member 15. Projection 90. extends outwardly from the body portion 9 and at its ends rests on bifurcations 4. A depressed tongue 7 extends laterally from the middle portion of projection 9a between bifurcations 4, and beneath arm 1. Ribs 10 reinforce the bracket projection 9a.

The bracket is secured to arm 1 by rivets 8 and o 11 and, in the assembled position, lugs 5 are spaced slightly inwardly of tongue 7 and serve to prevent the bracket from sliding inwardly and disconnecting irom the supporting arm in case rivets 8 and 11 are broken or lost. as

The web 9 of bracket 6 has a centrally depressed arcuate portion 18, and legs 12 mount pins 14 at each end for supporting guard, guide, or support member 15 which has a depressed portion 15a cooperating with the depression 13 in the bracket to prevent longitudinal movement of the member. Bracket 6 is positioned to carry member 15 clear of the wheels 3 and brake heads 16 to engage chairs 17 depending from brake beams 18. Member 15 is preferably of resilient material and shaped to require slight distortion in assembling with bracket 6 so that the parts will be held against rattling.

In Figures 4 to 6, two relatively short arms 19 project inwardly from side frame element 20 of a truck similar to that shown in Figures 1 to 3 and each arm has longitudinally disposed depending flanges 21 mounting a pin 22 for supporting a guard, guide, or support member 123. o The portion of member 23 between brackets 19 parallels the truck side frame and has shoulders 24 abutting opposing edges of arms 19 to prevent longitudinal movement of the strap. End portions 25 or the strap are offset inwardly to clear brake heads 26 and wheels 29 and to engage chairs 27 depending from brake beams 28.

In Figures 7, 8, and 9 is illustrated another modification in which a single short arm 30 of U section projects inwardly from lower element 31 of the truck side frame and has longitudinally disposed flanges 34 depending from the inner end of its lower surface and carrying pins 35. Ribs 32 brace the shelf 30. Mounted on the pins are a short lower safety bar 36 and a longer upper resilient guard, guide, or support member 37, the bar and member having centrally depressed arc- 'uate p'ortions between the pins 35 for preventing relative longitudinal movement of the assembled parts.

Member 37 has its end portions offset inwardly, as, in the form previously described, to clear the wheels 39 and brake heads 40 and to engage brake beam chairs 38. Bar 36 serves to reinforce member 3'7 in case of emergency, as where the brake hangers supporting the brake heads and brake' beams are broken causing the entire weight of the heads and beams to be carried by the guard, guide, or support member. Bar 36 may be shaped to conform with member 37, ifdesired, and may be of resilient or rigid material.

Figures 10 and 11 show a short arm 42 forming an inward extension on the spring seat 43 of a different type of truck. Bracket 44 mounts guard, guide,'or support member 45 and is secured to arm 42 as disclosed in Figures 1 to 3.

In each form the inwardly projecting arm is substantially shorter than in the above mentioned patent and, consequently, the strain upon its connection with the side frame and the tendency for the arm to break off or work loose is correspondingly lessened. The short arm is preferably cast integral with the side frame, as illustrated, but may be bolted or riveted or secured by other suitable means to a convenient side frame element.

Moreover, the shortening of the supporting arm materially decreases the cost of the truck frame and facilitates manufacture, especially where the frame is a cast structure, and also decreases the danger of the arm being broken off in case of derailment or contact with an obstacle between the rails.

Obviously, the invention might be otherwise modified as to details without departing from the spirit thereof and the exclusive use of all such modifications as come within the score of the appended claims is contemplated.

What is claimed is:

1. In a railway truck, a side frame element, wheels adjacent the same, brake rigging for said wheels including brake heads and brake beams,

an arm projecting inwardly from said element between said wheels, a guard, guide, or support member extending transversely of said beams, and a bracket secured to said member and extending a substantial distance sidewardly therefrom and serving as a supporting connection between said member and said arm, said arm having a recess at its inner end and said bracket including a projecting portion resting'on the sides'of said recess, and a tongue element extending through said recess and engaging the underside of said arm.

2. In a railway truck, a side frame element, wheels adjacent the same, brake rigging for said wheels including brake heads and brake beams, an arm extending inwardly from said element between said wheels, a guard, guide, or support member extending beneath said beams, and 3.

bracket secured to said member and extending a substantial distance sidewardly therefrom and serving as a supporting connection between said member and said arm, said arm being bifurcated at its inner end and having a lug on at least one of its bifurcations, and said bracket including a lateral projection resting on said bifurcations and a depressed tongue extending between said bifurcations and engaging the underside of said arm, said lug being positioned inwardly of said tongue and adapted to prevent disengagement of said bracket from said arm.

3. Structure as defined in claim 1 including elements permanently securing the tongue and projecting portions of said bracket to said arm.

4. In a railway truck, a side frame element, wheels adjacent the same, brake rigging including brake heads and brake beams, spaced arms projecting inwardly from said element between said wheels, and brake beam guard, guide, or support members secured to said arms and having end portions offset inwardly to clear said brake heads and wheels and extending beneath said beams.

5. In a railway truck, a side frame element, wheels adjacent the same, brake rigging including brake heads and brake beams, spaced arms projecting inwardly from said element between said wheels, each of said arms having spaced flanges thereon, pins extending between said flanges, and a brake beam guard, guide, or support member supported on said pins and having end portions offset inwardly to clear said brake heads and wheels and extending beneath said brake beams.

6. Structure as defined in claim 5 in which said guard, guide, or support member has shoulders cooperating with said arms to prevent longitu dinal movement of said member.

7. In a railway truck, a side frame element, wheels adjacent the same, brake rigging including brake heads and brake beams, an arm projecting inwardly from said frame element between said wheels, a resilient brake beam guard, guide, or support member supported on said arm and having end portions offset inwardly to clear said brake heads and wheels and extending beneath said brake beams, and a safety bar also supported by said bracket and extending beneath at least aportion of said member, said bar being arranged to permit said member to yield slightly in a vertical direction and to support the said member when abnormal forces are applied to the ends thereof.

8. Structure as defined in claim '7 in which said safety bar is composed of a strap of rigid material.

9. In a railway truck, a side frame element, wheels adjacent the same, brake rigging including brake heads and brake beams, an arm projecting inwardly from said frame element between said wheels and having depending flanges on its inner end disposed longitudinally of the truck, pins extending between said flanges, and a resilient brake beam guard, guide, or support member and a safety bar supported on said pins and having depressed portions cooperating with said pins to prevent longitudinal movement of said member, said member having end portions offset inwardly to clearsaid wheelsand brake heads, and said bar'being arranged to support said member when abnormal forces are applied thereto.

10. In a railway truck, a side frame element, wheels adjacent the same, brake rigging includtruck wheels, and a separate guard, guide or support strap including a portion extending sidewardly of said frame part and an offset portion supported on the inner end of said part and serving to space said first-mentioned portion a substantial distance inwardly of said part.

EDWIN G. BUBSE.