US2196249A

US2196249A - Brake beam support chair

Info

Publication number: US2196249A
Application number: US282603A
Authority: US
Inventors: Edwin G Busse
Original assignee: Chicago Railway Equipment Co
Current assignee: Chicago Railway Equipment Co
Priority date: 1939-07-03
Filing date: 1939-07-03
Publication date: 1940-04-09
Anticipated expiration: 1957-04-09

Description

April 9, 1940- E. G. BUSSE 2196,249- I BRAKE BEAM SUPPORT CHAIR 1 Filed July 3, 1939 2 Sheets-Sheet 1 INVENTOR FIG.5. F|G.6. Eowm G. BUSSE BY g W ATT RNEY April 9, 1940. E. G. BUSSE A 2,196,249

BRAKE BEAM SUPPORT CHAIR Filed July 3-. 1959 2 Sheets-Sheet 2 Has J v FIG.9.

INVENTOR Eowm G. BUSSE BY @644? ATTO NEY PatentedApr.9,19 40 7i ,2 I 2,196,249

S PATEN? r V I 2,196,249 I BRAKE BEAM SUPPORT CHAIR v Edwin Busse flhicago, 111 assignorto Chicago,

Railway Equipment Company, Chicago, 111., a corporation of Illinois Application July 3, 1939, Serial No. 282,603 Q v19 Dlaims. (o1. 188- -213) The invention relates to railway rolling stock, Figure 10 is a top View of the right hand end brake beams and consists in a novel support chair of the beam as shown .in Figure 1 but drawn to adapted to be applied to the compression and an enlarged scale, and with the chair device sectension members of a truss type brake beam at tioned tobetter illustrate one feature of the in- 5 a point between vthe beam strut and the brake 'vention.

head and arranged to contact with a bar under- Figure'll is a vertical section taken on the line lying the beam for guiding the beam in its movei i-----! I of Figure 10. ment to and from the wheels, thereby maintain- The brake beam includes a U shaped compresing the desired angular relation between the sion member I, a round rod tension member'Z, a brake shoes and the wheels; Alsoyin the event strut 3, brake heads t and tensioningnuts 5 1110 the usual brake hanger fails, the device may threaded on tension rod 2 and seated on the function to'support the beam and prevent the outer faces of brake heads 4. Portionsof the beam dropping to the rail and creating a hazard truck frame are indicated at 6 and include during the further travel of thecar. brackets l which mount flat bars 8 extending One object of the invention is to provide a longitudinally of the truck beneath the brake '15 support chair of the'type referred to which may beam and constitute safety and guide devices. be applied to beammembers of substantially dif- 'All of the above parts are of familiar section ferent cross sections to snugly fit any one of a and in themselves do not constitute any part of plurality of such members whereby a single supthe present invention. .port chair. may be used interchangeably upon The fourth point support chair, cooperating different beams. with the beam and the bars 3, consists of two Another object :of the. invention is to avoid main parts, a body 9 and a jaw I!) having overloss of the :supportbhair in the event thatits lapping cars It and I2 respectively, pivotally holding element loosens or .isaccidently removed. connected by a pin #3. Body 9 includes an ex- Another object of the invention is to prevent tension it forming a shoe adapted to engage and the substantial displacement of the support chair slide upon a bar 8 and thereby maintains the along the beam'. These and other detailed obdesired angu'larity of the brake beam in its movejects of the invention are attained 'by thestruoment to and from the truck wheels. ture illustrated in the accompanying drawings in Abolt i5 extends through lugs i6 and I! on which" 1 I v body 8 and jaw it and constitutes means for Figure l is a top view of .a truss type brake clamping the beam compression member I in beam provided with fourth point support chairs the chair. Jaw is has two short arcuate eleof the-type described herein. Parts of the adments [3 arranged tosengage spaced points on jacent truckframeand chair support structure the curved rear face of U shaped compression iii are alsoshowrn member 4, a'ndthe opposing portion of chair Figure 2is avertical section taken on line 2-2 body 9 has a straightelement l8 arranged to of Figure l. engage the edges of legs of the compression- Figures 3 and 4 are similar sectionsillustratmember.-, When bolt I5 is tightened, the coming the same supportchair assembled with brake session member is tightly gripped between ele- 40 beams having compression :rnembcrs of different merits Hi .and'i9. my

cross sections than that shown inFigures l and 2. Body 9 also includes a recessed portion 2!] ,ar Figure 5 is an end view of the device looking at rangedto snugly receive the round tension memthe same from the right ha d end of Fi ure ber 2 of the brake beam, and by arranging recess Figured-isa-verticalsectiontaken on lined-6 2i! as bestindicated in the top view, Figure 1,

of Figure 2. i r o thedevice is arranged for application to the left Figure 7 is horizontal section taken on the hand or right hand end of the beam.

line l- 'l-of ZEigure2. -v When clamped in position on the beam the Figure Sis a section slmilarito Figure 2 but chair wil-lbeheld stably against movement along showing a form ofthe. inventionarranged for the beam or transversely of the beam, either in an angle section beam member in addition to the straight or rotational directions. {,0

U, channel and-T sections. If desired, the chair may be applied to a vchan- Figure -9'is a sectioncorresponding toFigure 2 nel shape compression member, as indicated at but showing a different .form' of the invention 2] inFigure 3, the opposing faces of the body with the two parts hinged 'to each-other above and jaw having elements 22 and 23 respectively the vbeam. 1 arranged to engage opposing points on the com- '05 pression member to stably contact the same. Elements 22 and 23 are spaced from elements l8 and i9 previously referred to.

If desired, the chair may be applied to a brake beam compression member of T section, as indicated at 24 in Figure 4. In such application the leg of the T is received in a recess 25 provided in jaw H] and the cross arm of the T engages elements 26 on body 9 spaced apart sufiiciently to provide a stable bearing for the beam member but still close enough together to be received between the flanges of the U section compression member or the channel section comnression member.

The opposing faces of the chair body and clamping jaw may be further modified, as indicated in Figure 8, to seat and securely hold a beam member 35 of angle section. In this form of the invention the upwardly and downwardly facing elements at the top and bottom of the chair body 3| are recessed, as shown at 32, to receive the edges of the beam member. The corner portion of the beam may be received in a recess 25 which also receives the T leg, and the adjacent face of the jaw may be flattened at 33 to firmly seat the angle legs near the corner. This angle type of beam compression member is not being adopted on new beams at this time and it may be preferable to omit recesses 32 and flats 33 provided for the same so that the chair body and jaw elements which engage the beam compression members of different cross sections may provide for greater contact area. Figure 8 illustrates how the device may be shaped to accommodate four difiierent sections of beam members. It will be understood that the chair parts may be shaped to seat diiferent beam members of similar section but of different dimensions.

Figure 9 illustrates a form of the invention in which the upper parts 35 and 36 of the body and jaw are extended towards each other to overlap and to receive a hinged pin 31 while the lower portions 38 and 39 form spaced ears for receiving the clamping bolt 40.

With the arrangements previously described, loosening of the nut will not affect the assembly of the device but if the nut should work off of the bolt and the bolt work out of the jaw parts, eventually the hinged portion of the chair would drop backward and downward and permit the chair to work away from the brake head and then drop off. This could not happen with the two parts hinged to each other at the top of the compression member. as shown in Figure 9.

With this construction the bolt receiving ears project downwardly from the beam a greater distance than the hinged lugs in the other forms of the invention. To provide clearance between the beam clamping parts of the chair and the supporting bar M, it may be necessary to extend the latter downwardly and place an extra bend in the same, as indicated at 42 to avoid any change in the mounting of the bar upon the spring plank 43 or other truck parts to which the bar is attached. However, this additional downward extension of the bar may not be required. in which case the contour of the bar would be the same as shown in Figure 2.

Figures 10 and 11 illustrate more clearly than is illustrated in Figure 1 how the body portion of the chair securely engages upwardly, downwardly and outwardly facing portions of the beam tension and compression members to hold the assembled parts against movement along the beam. The

inclined elements

45 and 46 resist movement of the chair towards the brake head irrespective of contact between the beam and the chair jaw member ID. Movement of the chair away from the head is prevented by elements 4! and 48 inclined in the opposite direction. If the chair is mounted on the other end of the beam then the functioning of

elements

45, 46, 41 and 48 would be reversed. The lip 49 at the upper end of recess 20 overlies the top of the beam tension member and not only helps prevent movement of the chair along the brake beam but it prevents the accidental pulling away or dislocation of shoe [4 in the handling of the brake beams.

Each application of the chair indicates metal to metal contact between the same and the beam members, but it will be understood that inserts of rubber or other packing material may be placed between the contacting metal parts to break up vibration and avoid loosening up of the clamping bolt nut. Inserts of this type are illustrated in Patent 2,067,596 issued to the present inventor January 12, 1937, but such inserts are not essential to the present device and are omitted from the drawings to avoid confusion.

The details of the chair may be varied without departing from the spirit of the invention and the exclusive use of such modifications as come within the scope of the claims is contemplated.

What is claimed is:

1. A support chair device arranged to extend between the compression and tension members of a truss type brake beam and including a pair of separatel formed parts permanently assembled and movable relative to each other, and means for clamping a beam member between said parts, at least one of said parts being constructed and arranged to engage both of the brake beam members, irrespective of said clamping means, to provide support for the device against accidental dropping to the roadbed.

2. A support chair device arranged to extend between the compression and tension members of a truss type brake beam and comprising a part arranged to overlie both of the brake beam members to prevent the device from falling to the roadbed, said part including an element arranged to ride on a support bar, and means permanently assembled with said part and cooperating therewith to grip one of the brake beam members and maintain the assembly of the device and brake beam.

3. A support chair device for application to a truss type brake beam and comprising a body part constructed and arranged to extend between and overlie the compression and tension members of the beam, there being a projection on one of said parts for slidably engaging a supporting bar, and means pivotally secured to said part and cooperating therewith to clamp a portion of the beam to maintain the assembly of the device and beam.

4. In a support chair for a truss type brake beam, a part arranged to extend between the compression and tension members of the beam and provided with a depending shoe arranged to slidably engage a supporting bar, one end of said part having elements arranged to fit snugly against brake beam members of different cross sections.

5. In a support chair for a railway brake beam, parts hinged to each other and provided with opposing elements arranged to cooperate to snugly engage spaced points on a beam member having one cross section, there being other elements on said parts disposed to cooperate to snugly engage spaced points on another beam member having a different crosssection.

6. In a support chair for a railway truss type brake beam, a body part arranged to extend between beam compression and tension members, a jaw hinged to said body part and having elements for engaging spaced points on a beam member to maintain assembly of the beam and chair, said jaw having other elements for engaging spaced points on another beam member having a diii'erent cross section to maintain assembly of the beam and chair.

7. In a support chair for a truss type brake beam, a part arranged to extend between the compression and tension members of the beam and provided with a depending shoe arranged to slidably engage a supporting bar, one end of said part having elements arranged to seat the edges of the legs 01 a beam member of U shape cross section, there. being lugs arranged to extend between said legs and disposed to seat the cross bar of a beam member of T shape cross section, and means for clamping either beam member against the corresponding elements of said part.

8. In a support chair for a truss type brake beam, a part arranged to extend between'the compression and tension members of the beam and provided with a depending shoe arranged to slidably engage a supporting bar, one end of said part having elements arranged to seat the edges of the legs of a beam member of U shape cross section, there being other elements arranged to seat the edges of a beam member of channel shape cross section, and means for clamping either beam memberagainst the corresponding elements of said part.

9. A device as described in claim 8 in which the beam. clamping means comprise a jaw-hinged to the chair-part and having curved elements arranged to engage the bottom portion of a U shape beam member, and having straight elements adjacent said curved elements arranged to seat the bottom portion of a channel shapebeam member.

10. A device as described in claim 7 in which the beam clamping means comprise a jaw hinged to the chair part and having curved elements arranged to engage the bottom portion of a U shape beam member, and having a recess between its U beam-seating curved elements arranged to receive the leg of a beam member of T section.

11. In a support chair for a truss type brake beam, a part arranged to extend between the compression and tension members of the beam and provided with a depending shoe arranged to slidably engage a supporting bar, one end of said part having elements arranged to seat the edges of the legs of a beam member of U shape cross section, and adjacent elements arranged to seat the edges or the legs of a beam member of channel shape cross section, and adjacent elements arranged to seat the edges of a beam member of angle shape cross section, and a jaw hinged to said part and having curved elements arranged to form. a snug fit for the back of a U beam member, and a seat fit for the back of a channel beam member, and a snug fit for the back of an angle beam member.

12. A fourth point support chair for a railway truss type brakebeam including a rigid body portion arranged to extend transversely of beam I compression and tension members inclined to each other and to be supported thereby, and having elements arranged to fit against and'overlie both of the inclined beam members irrespective of the end of the beam to which the chair is applied.

13. In a device of the class described, a rigid arm arranged to extend transversely of the comat the other end of the beam.

14. In combination a railway truss type brake beam including a compression member, a tension member and a fourth point support chair including a body part extending between said tension beam members, there being a jaw pivoted to said body part and cooperating therewith to enclose one of said beam members, said jaw having a member opposing contour arranged to fit snugly with brake beam members of different cross sections.

15. In a railway truss type brake beam assembly, a compression and a tension member, and a transversely disposed chair snugly mounted on said members and including parts movable relative to each other to inclose and clamp one of said members, each of said parts including elements arranged to cooperate with opposing elercents on the other part to firmly seat brake beam members of different cross sections.

16. In combination, a railway truss type brake beam including a compression member and a tension member, and a fourth point support chair comprising a support engaging shoe and a rigid body part and a jaw' hinged thereto, said part and jaw each being arranged to overlie the beam and said part and jaw having elements arranged to cooperate to clamp between them one of the beam members, and said body part having rigid faces for engaging opposing surfaces of both beam members and to overlie portions of both members, the beam clamping elements and said faces cooperating to prevent movement of the chair longitudinally of the beam irrespective of a tight grip by the clamping elements.

17. In a support chair of the type described, a rigid body part comprising a support engaging shoe and elements arranged to extend between and overlie both the compression and tensionmembers of a beam, and having a depending shoe for engaging a supporting bar.

18. In a support chair of the type described, a part arranged to extend between "and overlie. the compression and tension members of the beam, and a bar-engaging shoe depending from said body part, a jaw hinged to the portion of said body part arranged to overlie the compression member of the beam,said body part and jaw having elements arranged to contact with the lower portion of the compression member of the beam, and means for clamping said beam member between said body part and jaw.

19. A support chair as described in claim 18 in which the beam clamping portions of the body part and jaw include elements arranged respectively to fit snugly against brake beam members of different cross sections.

EDWIN G. BUSSE.