US1768686A - Brake-hanger support - Google Patents
Brake-hanger support Download PDFInfo
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- US1768686A US1768686A US193400A US19340027A US1768686A US 1768686 A US1768686 A US 1768686A US 193400 A US193400 A US 193400A US 19340027 A US19340027 A US 19340027A US 1768686 A US1768686 A US 1768686A
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- US
- United States
- Prior art keywords
- socket
- slots
- blocks
- keeper
- hanger
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61H—BRAKES OR OTHER RETARDING DEVICES SPECIALLY ADAPTED FOR RAIL VEHICLES; ARRANGEMENT OR DISPOSITION THEREOF IN RAIL VEHICLES
- B61H13/00—Actuating rail vehicle brakes
- B61H13/34—Details
Definitions
- invention relates to-snpports whereby the hangers for the brakes of a railroad car are pendently supported from the truckframe which is preferably provided with a er means or smaller'diniensions,-comprising a pair of complementary blocks,flma-y be employed, thereby-creatinga great saving in, material and expense, while-still possessing the requisite; strength and bearing surface for the hangers or hanger supporting pins.
- the obj ects' and advantages of invention will'be re'ajdily' comprehended from the" detailed description of the accompanying drawing; wherein; 1
- FIG.1 is aside elevation of my improved siipportand an arm on a truck frame of which only a-por'tio'n is; shown in section and mere-' ly'the upperend of. a hanger being shown;
- Figure 2 is; a vertioalsetional view taken onthe line 2 -2 of Figure 1 looking in the di rectionof the arrows; I i
- Figure?) is a cross section taken on the line 3"3 of Fig-'iire'fllooking in the direction of Figure ei'is aperspe'cti-ve' 'viewgbf one of pair ofsimilar members constltntingthe ha'n-j ger keepermeana 1 p 4
- Figure 5 1s a viewfsubstantially sim lanto Figure ltshowingi the use of a mod fied form ofkeeper means.
- I I j a Figure 6 is a horizontalsectional view, of
- truck frame 11 is preferablyprdvidedwith a projection or arm '12; the outer end whereof isienlar edlaterally orderfto permit the" same tebe slotted orlsocketed, therebypizoviding the' upper and lower walls 13 andlt -respectively, connectedfat their inner ends by the vertical ebs 15, which are preferably.
- the slot or socket in the end of the arm 12 is preferably made at "a slight inclination as moreclea'rly shown in Figure 2, so as to induce the keeper means to slide downwardly with the rounded portions 17 17 seatedion the arciiate webs 15. It is apparent from this construction that acoidental vdisplacement of the keeper means, in the event of loss'of the locking means, is; less likely, while at the same time the strains placed on the keeper means will all be transmitted to the truck frame ,
- the keeper means consists of a pair of blocks identical to that shown. in Figure 4;
- These shoill'der's are intended to extendrinto the recess 20 in the arin inter-I mediate ofthe webs 15, 15, and thereby prevent shifting of the keeper means in a direction lengthwise of the blocks.
- the grooves 21 ofcthe two-blocks when arranged in face to facecrelatlon as shownrin Figure 2, being SUfilClIlfi .to receive the-link lO a nd stillzvpermitzfree oscillation of the link -when'the blocks are in jiixtapositionf
- the upper ahd-lovver-I walls 13 and 14 are each provided with a slotdispo'sed at right i anglest-o the. main portion of the arm 12;
- the slots extend, lengthwise of the socket;
- the slot 22 in the Upper wall 13 is somewhat longerthanthe slot 23 in the lower wall l lyand the inner 'en'd'sto f both slots are made sloping outwardl or forward 1y toward the bottom at: an angle substan tially similar to the angle ofinelination of thekeeperblocks.
- the brake hanger 10 has its upper end inserted into the groove 21 of the lower kee er member or block 18; the upper block 18 is then put into position with its grooved face downwardly so that the grooves 21 of the two blocks constitute a suitable channelfor the upper end of the hanger 10.
- the assembled elements are then inserted into the socket formed between the upper walls 13 and 14, with the shoulders 19 disposed into the rear end of the socket intermediate of the vertical webs between walls 13 and 14. 1 These shoulders not only center the blocks in proper position, but also prevent lateral or sidewise movement thereof.
- the key membar or Wedge is then driven into place with its tapered'end disposed downwardly thus causing the forward perpendicular edge to be in'bearing relation with the forward ends of the slots 22 and 23 while the sloping rear edge of the key member, which is disposed in the grooves 24 of both blocks, will be in hearing relation with the forward surfaces of the blocks, without contact at the rear ends of the slots 22 and 23.
- This causes the blocks to be firmly wedged in place.
- the hanger '10 straddles the lower wall portion 14.
- the lower end thereof preferably flexed orbent laterally as shown at 26 in Figure 1 so that accidental removal of the key is prevented.
- FIGS 5 and 6 I show a modification especially intended for use in connection with the U-shape hanger indicated at 27 having upper eyeletted ends 28 to receive a supportingpin 29.
- the keeper means in this instance, consists of a pair of corresponding blocks 30, 30 of somewhat greater length than the blocks or keeper members 18.
- the ends of blocks 30, 30 are preferably slightly enlarged as shown at 31 and slotted transversely from the rear sides to receive the eyeletted ends 28 of the hanger 27 and still permit oscillatory movement of the hanger. These slotted ends are disposed beyond the vertical webs 15, 15 of the arm 12 whereby the upper and lower walls 13 and 14 are connected to- --gether.
- each member or block 30 is provided with a longitudinal groove disposed throughout the intermediate or main body portion as well as partially into the ends to receive the supporting pin 29.
- the pin receiving grooves terminate a short distance from the immediate ends of the blocks so as to provide the abutting walls 32,, 32 at the ends of the pin 29 and thus prevent longitudinal movement of the latter.
- the keeper mem bers or blocks 30 are identical in construction and like blocks 18 are interchangeable. That is to say, either block may constitute the upper or lower block.
- the forward longitudinal sides of the blocks 30 are each provided at a registering point with a vertically disposed groove 33 adapted to receive the wedge member or key 25 when the latter is disposed through slots 22 and 23 formed in the upper and lower wall portions 13 and 1 1 like in the previously described construction.
- the wedge member 25, for the construction shown in' Figures 5 and 6, as well as the function of the slots 22 and 23 are identical with that previously described.
- the supporting pin 29 is inserted through the eyelets 28 of hanger 27, the pin 29 then placed in the longitudinal'groove of the lower block 30 after-which the upper block 30' is placed thereon with its longitudinal groove encircling the upper side of the supporting pin; the end walls 32 of both blocks completely closing the ends of the groove and preventing movement of the pin.
- the assembled elements are then put into the socket in the arm intermediate of the walls 13 and 14 with the hanger 27 straddling the lower wall portion l tlike in the previously described construction.
- the wedge member or key 25 is then driven downwardly through the slots 22 and 23 with its rear sloping edge in the grooves 330i the keeper members or blocks.
- the slots 22 and 23, as previously described, are of such length that their rear ends are disposed in avertical plane rearward of the vertical forward longitudinal edges of the keeper elements or blocks so that the wedge member or key will-not contact with the rear ends of the slots 22 and 23. This permits a firm wedging of the keeper blocks in place.
- the lower end of the wedge member or key is then preferably flexed or bent laterally as shown vin Figure 5 at 26 to hold the wedge member firmly in place.
- a brake hanger support comprising, i combination with a truck frame provided with a transversel dis osed socket ooen toward, the truck wheels, a pair of correlated keeper plates insertible in said socket, the forward sides of sald plates andthe upper and lower walls of the socket being provided with vertically aligned slots, and a-lock1ng key adapted to pass through said slots with forward edge engaging with said upper and lower walls at the forward ends of the slots therein while the rear edge engages with the keeper plates.
- a brake hanger support comprlsmg in combination with a truck frame having a lat erelly disposed arm, the outer endwhereof provided with a transverse socket open toward the wheels of the truck, the upper and lower walls of the socket being provided with aligned slots disposed lengthwise of the socket, a pair of superposed: correlated keeper plates correspondingly grooved on their opposits faces'andinsertible in said socket, the forward longitudinal edges of said plates being grooved to register with'the aligned slots in theupperand lower wallsof the-sock ct, and bendable wedge member insertible tl-irdu gh" said sinner-1d the plate grooves whereby said plates are forced into said socket locked iii place.
- brakehan'ger support comprising, in combination with a truck frameh-avmg a socket sloping downwardly toward the in her end-midopen toward the truck wheels, the s t- 11s above and below Said socket each having a slot entendinglengthwise of the socket,- a pair of keeperplates insertible in said socket in superposed relation, said plates being formed to receive a supporting hanger and L formed toprovidevertical slots adapted to register with the slots in the walls of said socketand a wedge, member insertible in the slotsiof'the walls andsaid plates whereby the latter are locked in place. 4;.
- a brake hanger support comprising, in combination with a truck frame having a socket open toward the truck wheels, the walls above and below said socket having slots disposed in the direction of said open end of the socket, hanger and hanger pin supporting means insertible wholly within said socket, and a wedge key disposed vertically through said slots with the rear vertical face engaging with the outer side of said supporting means whereby the latter is forced toward the inner end of the socket and locked against movement.
- a brake hanger support comprising, in
- keeper means having aligned correlated surfaces, and adjustable means adapted to pass through the walls of the socket and coact with said surfaces of the socket walls and keeper means whereby the latter are forced towardthe inner end of said socket and locked in place.
- a brake hanger support comprising a truck frame having a socket open toward the truck wheels, the walls above and below said socket having registering slots disposed in the direction of said open end of the socket with intermediate portions of said slots being enlarged laterally, complementary hanger and hanger-pmsupporting plates, grooved longitudinally on their apposite faces, in-
- a brakehanger support comprising, in combination with a truck frame provided with a, socket open toward the wheels of the truck, the upper and lower walls ofthe socket at the inner end thereof being united by laterally spaced ribs, while the outer ends of said walls are provided with registering slots 7 disposed in a direction lengthwise of the soc et, keeper means insertible into said socket and provided at the inner side with a projection adapted to extend between said spacedribs to prevent lateral movement of said means, and a wedge-key insertible through said slots, the slots and wedge-key being so formed that the forward side of the key engages the outer ends of the slots while the rear side of the key engages the forward side of said means and forces the latter inwardly as said key is forced downwardly through said slots.
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chain Conveyers (AREA)
Description
July 1, 1930. v, HAIQBERT 1,768,686
BRAKE HANGER suPPdnT Filed May 23, 192
the, arrows.
- the structure shown-in Fig'iire atented July 1 1939 mate vio'ron H. ntenna; at Gamm lii Liivoi s, ae'sienee eq meson stairs, 6e;
Gamma;
minors BRAKE-nam 's SUPfOR'I Ap iaami rhea May as, 1927. Serial No. 193300.
invention relates to-snpports whereby the hangers for the brakes of a railroad car are pendently supported from the truckframe which is preferably provided with a er means or smaller'diniensions,-comprising a pair of complementary blocks,flma-y be employed, thereby-creatinga great saving in, material and expense, while-still possessing the requisite; strength and bearing surface for the hangers or hanger supporting pins. The obj ects' and advantages of invention will'be re'ajdily' comprehended from the" detailed description of the accompanying drawing; wherein; 1
' Figure .1 is aside elevation of my improved siipportand an arm on a truck frame of which only a-por'tio'n is; shown in section and mere-' ly'the upperend of. a hanger being shown;
Figure 2 is; a vertioalsetional view taken onthe line 2 -2 of Figure 1 looking in the di rectionof the arrows; I i
Figure?) isa cross section taken on the line 3"3 of Fig-'iire'fllooking in the direction of Figure ei'is aperspe'cti-ve' 'viewgbf one of pair ofsimilar members constltntingthe ha'n-j ger keepermeana 1 p 4 Figure 5 1s a viewfsubstantially sim lanto Figure ltshowingi the use of a mod fied form ofkeeper means. I I j a Figure 6 is a horizontalsectional view, of
' The "ejinbodif "ent of the invention as shown in the" first four' figures of the dra wing is especially adapted for use in connection with the @611 lniions' o r. clds'e'd link type of brake hanger; a part ivhe'r'eof, is shown at 10. The
truck frame 11 is preferablyprdvidedwith a projection or arm '12; the outer end whereof isienlar edlaterally orderfto permit the" same tebe slotted orlsocketed, therebypizoviding the' upper and lower walls 13 andlt -respectively, connectedfat their inner ends by the vertical ebs 15, which are preferably.
made arcuate asshown in dotted lines at 16 p in Figure 2 in order to conform with; the arouate surfaces 17, 17, adjacent the ends of the keeper blocks 18. The slot or socket in the end of the arm 12 is preferably made at "a slight inclination as moreclea'rly shown in Figure 2, so as to induce the keeper means to slide downwardly with the rounded portions 17 17 seatedion the arciiate webs 15. It is apparent from this construction that acoidental vdisplacement of the keeper means, in the event of loss'of the locking means, is; less likely, while at the same time the strains placed on the keeper means will all be transmitted to the truck frame ,The keeper means consists of a pair of blocks identical to that shown. in Figure 4;
each preferably provided with the projection or shoulder 19,- int'ermediate of the arcuate snrfaces,17,'17 on the inneror .rear'side of the blocks. These shoill'der's are intended to extendrinto the recess 20 in the arin inter-I mediate ofthe webs 15, 15, and thereby prevent shifting of the keeper means in a direction lengthwise of the blocks. Each block 18,
on its apposite face is provided with the longij tudinally disposed groove 21 intended to receive the upper end of thebrake hanger 10;
the grooves 21 ofcthe two-blocks, when arranged in face to facecrelatlon as shownrin Figure 2, being SUfilClIlfi .to receive the-link lO a nd stillzvpermitzfree oscillation of the link -when'the blocks are in jiixtapositionf The upper ahd-lovver-I walls 13 and 14 are each provided with a slotdispo'sed at right i anglest-o the. main portion of the arm 12;
that is to say the slots extend, lengthwise of the socket; The slot 22 in the Upper wall 13 is somewhat longerthanthe slot 23 in the lower wall l lyand the inner 'en'd'sto f both slots are made sloping outwardl or forward 1y toward the bottom at: an angle substan tially similar to the angle ofinelination of thekeeperblocks.
These slo'tsl22 211 16123are'soparrangedthat' the inner ends thereof will be; disposed in a vertical planerearward of the forwardedges" of the keeper elements when 'the" latter" are completely seated in the socket formed in the arm 12, see Figure 2. The forward longitudinal sides of the keeper members 18 (which are arranged in superposed relation) are each provided with a vertically disposed groove or slotas shown at 24, see Figure 4, for'the purpose of receiving the rear edge of the wedge member or key 25 when the latter has been driven through slots 22 and 23 in the arm portions or walls 13 and 14. The forward longitudinal edge of the wedge member or key 25 is intended to be disposed perpendicular to the ends of the wedge member while the rear longitudinal edge is made sloping so as to provide a key member tapering toward the lower end thereof. 1
In practice, the brake hanger 10 has its upper end inserted into the groove 21 of the lower kee er member or block 18; the upper block 18 is then put into position with its grooved face downwardly so that the grooves 21 of the two blocks constitute a suitable channelfor the upper end of the hanger 10. The assembled elements are then inserted into the socket formed between the upper walls 13 and 14, with the shoulders 19 disposed into the rear end of the socket intermediate of the vertical webs between walls 13 and 14. 1 These shoulders not only center the blocks in proper position, but also prevent lateral or sidewise movement thereof. The key membar or Wedge is then driven into place with its tapered'end disposed downwardly thus causing the forward perpendicular edge to be in'bearing relation with the forward ends of the slots 22 and 23 while the sloping rear edge of the key member, which is disposed in the grooves 24 of both blocks, will be in hearing relation with the forward surfaces of the blocks, without contact at the rear ends of the slots 22 and 23. This causes the blocks to be firmly wedged in place. It is understood. that the hanger '10 straddles the lower wall portion 14. After the key has been firmlyadriveninto place, the lower end thereof preferably flexed orbent laterally as shown at 26 in Figure 1 so that accidental removal of the key is prevented.
. In Figures 5 and 6, I show a modification especially intended for use in connection with the U-shape hanger indicated at 27 having upper eyeletted ends 28 to receive a supportingpin 29. The keeper means, in this instance, consists of a pair of corresponding blocks 30, 30 of somewhat greater length than the blocks or keeper members 18. The ends of blocks 30, 30 are preferably slightly enlarged as shown at 31 and slotted transversely from the rear sides to receive the eyeletted ends 28 of the hanger 27 and still permit oscillatory movement of the hanger. These slotted ends are disposed beyond the vertical webs 15, 15 of the arm 12 whereby the upper and lower walls 13 and 14 are connected to- --gether. .The appositefaces of each member or block 30 is provided with a longitudinal groove disposed throughout the intermediate or main body portion as well as partially into the ends to receive the supporting pin 29. The pin receiving grooves terminate a short distance from the immediate ends of the blocks so as to provide the abutting walls 32,, 32 at the ends of the pin 29 and thus prevent longitudinal movement of the latter. V
. It will be'understood that the keeper mem bers or blocks 30 are identical in construction and like blocks 18 are interchangeable. That is to say, either block may constitute the upper or lower block. The forward longitudinal sides of the blocks 30 are each provided at a registering point with a vertically disposed groove 33 adapted to receive the wedge member or key 25 when the latter is disposed through slots 22 and 23 formed in the upper and lower wall portions 13 and 1 1 like in the previously described construction. The wedge member 25, for the construction shown in'Figures 5 and 6, as well as the function of the slots 22 and 23 are identical with that previously described.
In practice, the supporting pin 29 is inserted through the eyelets 28 of hanger 27, the pin 29 then placed in the longitudinal'groove of the lower block 30 after-which the upper block 30' is placed thereon with its longitudinal groove encircling the upper side of the supporting pin; the end walls 32 of both blocks completely closing the ends of the groove and preventing movement of the pin. The assembled elements are then put into the socket in the arm intermediate of the walls 13 and 14 with the hanger 27 straddling the lower wall portion l tlike in the previously described construction. The wedge member or key 25 is then driven downwardly through the slots 22 and 23 with its rear sloping edge in the grooves 330i the keeper members or blocks. The slots 22 and 23, as previously described, are of such length that their rear ends are disposed in avertical plane rearward of the vertical forward longitudinal edges of the keeper elements or blocks so that the wedge member or key will-not contact with the rear ends of the slots 22 and 23. This permits a firm wedging of the keeper blocks in place. The lower end of the wedge member or key is then preferably flexed or bent laterally as shown vin Figure 5 at 26 to hold the wedge member firmly in place.
It is apparent that other means may be used for locking the wedge'member in place, but the method shown is believed to be the simplestand most acceptable, because the necessity for employing additional parts or elements is eliminated. v p
With my constructions it is apparent that if any wearshould result between the keeper members or blocks and the cast'metal portions of the truck frame, .this can :be readily.
taken up by adjustment or further driving of the wedge member into place. Furthermore, the wedge member or key when properly driven home will prevent all chatter or vibration between the keeper member and the truck frame and thus materially reduce possibility of wear. Furthermore, with'my improved construction, a considerable saving in material and expense is possible because the method of securing the keeper means in place enables narrower keeper blocks to be employed than has heretofore'been'the case.
In order to permit the temporary use of an ordinary brake pin or bolt, in the event of loss of thewedge key while the train is at a distance from the shops, I show the intermediate portions of slots 22' and 23 in the upper and lower walls 13 andM, bowed outwardly or made arcuateas shown at 34 to provide an opening sufficiently large to receive the ordinary round pin which is generally accesible along the ri ht-of-way. The slots 2% in keeper blocks or plates 18,'and the slots 33 1 in the keeper plates 30, at the outer ends, are
therefore flared outwardly in an arcuate' manner as shown at 35 and 36, respectively, see Figures l and 6, to permit the temporary use of an ordinary bolt or pin having a round shank. It is apparent that the round pin will hold the keeper elements with the brake hangers in proper position, permitting proper brake application during the remainder of the run, until a replacement of the Wedge-'- key can be made.
The constructions shown are thought to be the simplest and best embodiments of the invention, but certain modifications may be made without, however, departing from the I combination wlth a truck frame havlng a spirit of my invention;
W hat I claim is: I 1. A brake hanger support comprising, i combination with a truck frame provided with a transversel dis osed socket ooen toward, the truck wheels, a pair of correlated keeper plates insertible in said socket, the forward sides of sald plates andthe upper and lower walls of the socket being provided with vertically aligned slots, and a-lock1ng key adapted to pass through said slots with forward edge engaging with said upper and lower walls at the forward ends of the slots therein while the rear edge engages with the keeper plates. I r a 2. A brake hanger support comprlsmg, in combination with a truck frame having a lat erelly disposed arm, the outer endwhereof provided with a transverse socket open toward the wheels of the truck, the upper and lower walls of the socket being provided with aligned slots disposed lengthwise of the socket, a pair of superposed: correlated keeper plates correspondingly grooved on their opposits faces'andinsertible in said socket, the forward longitudinal edges of said plates being grooved to register with'the aligned slots in theupperand lower wallsof the-sock ct, and bendable wedge member insertible tl-irdu gh" said sinner-1d the plate grooves whereby said plates are forced into said socket locked iii place.
brakehan'ger support; comprising, in combination with a truck frameh-avmg a socket sloping downwardly toward the in her end-midopen toward the truck wheels, the s t- 11s above and below Said socket each having a slot entendinglengthwise of the socket,- a pair of keeperplates insertible in said socket in superposed relation, said plates being formed to receive a supporting hanger and L formed toprovidevertical slots adapted to register with the slots in the walls of said socketand a wedge, member insertible in the slotsiof'the walls andsaid plates whereby the latter are locked in place. 4;. A brake hanger support comprising, in combination with a truck frame having a socket open toward the truck wheels, the walls above and below said socket having slots disposed in the direction of said open end of the socket, hanger and hanger pin supporting means insertible wholly within said socket, and a wedge key disposed vertically through said slots with the rear vertical face engaging with the outer side of said supporting means whereby the latter is forced toward the inner end of the socket and locked against movement.
5. A brake hanger support comprising, in
keeper means having aligned correlated surfaces, and adjustable means adapted to pass through the walls of the socket and coact with said surfaces of the socket walls and keeper means whereby the latter are forced towardthe inner end of said socket and locked in place.
'6. A brake hanger support comprising a truck frame having a socket open toward the truck wheels, the walls above and below said socket having registering slots disposed in the direction of said open end of the socket with intermediate portions of said slots being enlarged laterally, complementary hanger and hanger-pmsupporting plates, grooved longitudinally on their apposite faces, in-
sertible in said socket, the outer longitudinal sides of saidplates being transversely slot ted, with theouter ends of said slots flared to register with the enlarged portions of the slots in said walls, and means insertible iio through the slots in said walls and in said plates for locking the latter in place.
7. A brakehanger support comprising, in combination with a truck frame provided with a, socket open toward the wheels of the truck, the upper and lower walls ofthe socket at the inner end thereof being united by laterally spaced ribs, while the outer ends of said walls are provided with registering slots 7 disposed in a direction lengthwise of the soc et, keeper means insertible into said socket and provided at the inner side with a projection adapted to extend between said spacedribs to prevent lateral movement of said means, and a wedge-key insertible through said slots, the slots and wedge-key being so formed that the forward side of the key engages the outer ends of the slots while the rear side of the key engages the forward side of said means and forces the latter inwardly as said key is forced downwardly through said slots.
VICTOR H. HARBERT.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US193400A US1768686A (en) | 1927-05-23 | 1927-05-23 | Brake-hanger support |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US193400A US1768686A (en) | 1927-05-23 | 1927-05-23 | Brake-hanger support |
Publications (1)
Publication Number | Publication Date |
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US1768686A true US1768686A (en) | 1930-07-01 |
Family
ID=22713485
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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US193400A Expired - Lifetime US1768686A (en) | 1927-05-23 | 1927-05-23 | Brake-hanger support |
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Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2535626A (en) * | 1948-10-06 | 1950-12-26 | American Steel Foundries | Brake hanger and method of making |
-
1927
- 1927-05-23 US US193400A patent/US1768686A/en not_active Expired - Lifetime
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2535626A (en) * | 1948-10-06 | 1950-12-26 | American Steel Foundries | Brake hanger and method of making |
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