US1246381A - Side-frame construction. - Google Patents
Side-frame construction. Download PDFInfo
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- US1246381A US1246381A US15902517A US15902517A US1246381A US 1246381 A US1246381 A US 1246381A US 15902517 A US15902517 A US 15902517A US 15902517 A US15902517 A US 15902517A US 1246381 A US1246381 A US 1246381A
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- Prior art keywords
- channel
- channel shaped
- compression
- compression member
- tension
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61F—RAIL VEHICLE SUSPENSIONS, e.g. UNDERFRAMES, BOGIES OR ARRANGEMENTS OF WHEEL AXLES; RAIL VEHICLES FOR USE ON TRACKS OF DIFFERENT WIDTH; PREVENTING DERAILING OF RAIL VEHICLES; WHEEL GUARDS, OBSTRUCTION REMOVERS OR THE LIKE FOR RAIL VEHICLES
- B61F5/00—Constructional details of bogies; Connections between bogies and vehicle underframes; Arrangements or devices for adjusting or allowing self-adjustment of wheel axles or bogies when rounding curves
- B61F5/50—Other details
- B61F5/52—Bogie frames
Definitions
- My invention relates Vto improvementsin truck side-frames and is particularly concerned with the construction of a side-frame in which all parts, including the pedestal, are formed of rolled sections of steel.
- T he object of the invention is theV produc tion of a side-framey of great strength in proportion to its weight and one in which the parts may be very readily and strongly assembled.
- a further object is to secure a very material reduction in the cost of manufacture, both in the production of the parts of the frame and also in the labor of assembling;
- the side-frame forming the subject matter of this case has the advantage that the transverse webs of the compression and tension members and also of the pedestal are spaced as far as the limits of the construction will allow, from the neutral axis of strain of the frame.
- This neutral axis is in the line at which the compression and tension strains neutralize each other in a truss of the form here considered, and extends longitudinally of the frame and a little below the center of the pedestal.
- Figure 1 is a section of a form of compression member employed.
- Fig. 2 is a side elevation.
- Fig. 3 is a plan view of the side frame. Fig.
- #l is a partial elevation and partial vertical section of the side-frame.
- F ig. 5 is a vertical transverse section on the line 5 5, Fig. 4;
- F ig. 6 is a transverse section on the line 6 6, Fig. 4;
- Fig. 7 is a section on the line 7 7, Fig. e;
- Fig. 8 is a section on the line 8 8, Fig. 4, and
- F ig.”9 is section on the Vline 9 9, Fig. 4.
- Vflanges 3 are in line with the outside faces of the upperflanges 2 2, thus forming what I term al ⁇ double -V differential channelV member for purposes hereinafter described.
- the upper flanges 2 2 are sheared oft1 along the lines 5 5, thus bringing the web to the topor outside at the ycentral portion of the member.
- These flanges are also sheared along the lines 6 6 for the purpose hereinafter described.
- lThe lower flanges 3 3 are preferably cut away along the lines 7 7.
- lThe lateral flanges 4 4 are cut away along the lines 8, Fig. 3, thus producing at thesection line 8 3, Fig. 1, a cross-section such as shown in Fig. 3, ⁇ while at the center the flanges 4 4 are shown in their full width as in the crosssection 5 5, Fig. 5, from the points 9 9, Fig. 3, at which the flanges 4-4 disappear altogether and the depending flanges 3 3 of the compression member are inset in proper dies to bring them to the position shown in the cross-section 7 7, Fig. 7 in other words, directly in alinement with the upstanding flanges 2 2 on the upper side of the web l.
- This compression member so sheared is then bent to the shape shown in F ige.
- the Ytension member of the side-frame is preferably formed of a rolled section such as that illustrated in Fig. 5, and comprises a web l0, the side-walls ll andlaterally extendingy flanges l2. These lateral flanges are sheared off along the lines 13,'Fig. 3, to
- a truck side frame having its compres sion and tension members formed of rolled channel shaped sections, one of which has channel shaped portions narrower than those of the other, so that the ends of one member may nest within the corresponding ends of the other', either one or both of said channel shaped sections being of double channel differential shape.
- a truck side-frame having its compression member formed of a rolled differential channel shaped section, and a tension member formed of a rolled channel shaped section, the upper channel of the compression member being of less width than that of the Ytension member whereby the upwardly opening channel shaped ends of the compression member may nest within the channel shaped ends of the tension member, the upper flanges of the compression memberv being sheared at the central portion thereof, to bring the central portion of the web of the. compression member toward or to the top.
- a truck side-frame having itscompression member formed of a rolled differential channel shaped section, and a tension member formed of a rolled channel shaped-section, the upper channel of the compression member being of less width than that of the tension member whereby the4 upwardly opening channel shaped ends of the compression member may nest within the channel shaped ends of the tension member, the upper flanges of the compression member being sheared at the central portion thereof to bring the central portion of the web of the compression member toward or to the top, the lower flanges of the compression member being sheared olf adjacent the ends thereof to permit said ends to be nested within the corresponding ends of the tension member.
- a truck side-frame having its compression member formed of a rolled differential channel shaped section, and a tension member formed of a rolled channel shaped Y' section, the upper channel of the compression member being of less width than that ber being sheared at the central portion thereof to bring the central portion of the Vweb of the compression member toward or to the top, the lower flanges of the compression member forming at the central portion thereof a downwardly opening channel to receive the upper side of the pedestal.
- a truck side-frame having its compression member formed of a rolled differential. channel shaped section, and a tension member formed of a rolled channel shaped section, the upper channel of the compression member being of less width than that of the tension member whereby the upwardly open.
- ing channel shaped ends of the compression member may nest within lthe channel shaped ends of the tension member, the upper flanges of the compression member being sheared at the central portion thereof toA bring the central portion o f the web of the compression member toward or to the top, the downwardly opening channel portion at the center of the compression member and the upwardly opening channel portion at the center of the tension member forming seats to embrace the 'upper and lower portions respectively of the pedestal member.
- a truck side-frame having its compression member formed of a rolled di'erential channel shaped section, and a tension member formed of a rolled channel shaped section, the upper channel of the compression member being of less width than that of the tension member whereby the upwardly opening channel shaped ends of the compression member may nest within the channel shaped ends of the tension member, the upper flanges of the compression member being sheared at the central portion thereof tobring the central portion of the web of the compression member toward or to the top, the compression and tension members having oppositely opening channel portions at the central portions thereof, and a pedestal member composed of a rolled channel shaped section having its web at its outside, said pedestal member being seated within the channel portions of the compression and tension members respectively, with p its web in contact with the webs of the compression and tension members respectively.
- a truck side-frame having its compression member Vformed of a rolled differential channel shaped section, and a tension member formed of a rolled channel shaped section, the upper channel of the compression member being of less width than that of the ytension member whereby the upwardly opening channel shaped ends of the compresf sion member may nest within the channel shaped ends of the tension member, the upper flanges of the compression member being sheared at the central portion.
- said compression and tension members having oppositely opening channel portions at the central parts thereof respectively, and a pedestal formed of a rolled channel sect-ion of the same width throughout and having its web at the outside thereof, said pedestal being adapted to be seated within the central channel portions of the compression and tension members, respectively.
- a truck side-frame having its compression member formed of a rolled diderential channel shaped section, and a tension vmember formed of a rolled channel shaped section, the upper channel of the compression member being of a less width than that of the tension member whereby the upwardly opening channel shaped ends of the compression member may nest within the channel shap( il ends of the tension member, the upper flanges of the compression member being shoared at the central portion thereof to bring the central portion of the web of the compression member toward or to the top, said compression and tension members respectively having oppositely opening central channel members of the same inside width, a pedestal formed of a rolled channel section of uniform width throughout having its web at the outside thereof whereby said pedestal member may be seated wit-hin said channel portions of the compression and tension members respectively, vith the web of said pedestal in contact with the webs of the compression and tension members respectively.
- a truck side-frame having its compression member formed of a rolled differential channel shaped section having the side walls of the lower channel sheared o at the ends of the section, and having the side walls of the upper channel sheared ofi' at the' center port-ion, a tension member formed of a rolled channel shaped section, of a width to snugly receive the upper channel shaped end portions of the compression member whereby said ends may be nested snugly within the channeled end portions of the tension member, and whereby the web of the compression member vill be at the top at the center of said member and the web of the tension member will be at the 'bottom throughout said member.
- a truck side-frame having its com pression member formed of a rolled differential channel shaped section having its web extending laterally at either side of the channel portions to form strengthening flanges and a tension member ormedof a channel shaped section, the lower flanO'es and the lateral flanges of said compression member being sheared off adjacent the ends of said member whereby said ends ni ay be nested within the channel shaped ends of thetension member, the side walls of the tension member having laterally extending flanges to laterally reinforce said memberand to form a broad bearing for the spring base plank.
- a truck side-frame having itsl compression member formed of a rolled differential channel shaped section having its web extending laterally at either side of the channel portions to form strengthening flanges and a tension member formed of achannel-shaped section having its side-walls flanged laterally, the lower flanges and the lateral fianges of said compression member being sheared off adjacent'the ends of said member whereby said ends may be nested within the channel shaped ends of the tension member, the lateral flanges of said tension member vbeing sheared olf at the 'ends to eliminate material not necessary for effective strength and to afford clearance for the wheels.
- a truck side-frame having its compression member formed of a rolled diderential channel shaped section the side walls of the lower channel being sheared ofl' ad jacent the ends of said section, the side walls of the upper channel being sheared off at the center to bring the web of said section toward or to the top at the center thereof and leave upwardly opening channel shaped ends for said member and a downwardly opening channel shaped central portion for said member, a tension member formed of a channel shaped section of an inside width equal to the inside width of the downwardly opening channel shaped portion of' the compression member, and a pedestal formed of a rolled channel section of uniform width throughout whose web is at the outside thereof, said pedestal being adapted to be received within the downwardly opening channelof the compression member and the upwardly opening ⁇ channel of the tension member whereby the side walls of said pedestal may be riveted to the side walls of the compression and tension members, respectively.
- a truck side-frame comprising a compression member having upwardly opening channel shaped portions at its ends and a downwardly opening ⁇ channel shaped portion at its center whereby the web ot said member forms the bottom walls thereof at the ends ot' said member and the top wall thereof, at the center of said member and a tension member formed of a rolled channel shaped section within the channel shaped ends of which the channel shaped ends of the compression member are received and secured.
- a truck side-frame comprising a compression member ha *ing upwardly opening channel shaped portions at its ends and a downwardly openingchannel shaped portion at its center whereby the web of said member forms the bottom walls thereotl at the ends and the top wall thereof at the center, and a tension member formed of a rolled channel shaped section within the channel shaped ends of which the channel shaped ends of the compression member are received and secured, and a pedestal formed of a channel shaped section adapted to be seated and secured within the central channel shaped portions of the compression and tenupwardly opening ⁇ channel shaped portions.
- a truck side-frame having its compression member formed of a rolled diien ential channel shaped section and a tension member formed of a rolled channel shaped section, the upper channel of the compression member being ⁇ of less width than that oit' the tension member, whereby the upwardly opening channel shaped ends of the compression member may nest within the channel shaped ends .of the tension member, the inside width of the downwardly opening channel portion of said'compression member being ⁇ initially the same as tnat of the tension member, the side walls ot said downwardlj7 opening channel portions of the compression member being ⁇ sheared off adjacent the ends of said member and the slieared ends of said side walls being ⁇ inset to fit within the adjacent portions of the tension member.
Description
S. A. BENNER.
SIDE FRAME CONSTRUCTION. APIILICATION FILED FEB. 26. I9I4` RENEWED MAR. 31.1917- I 1,246,381. PatentedN0v.13,1917.
' FIGQI FIG.2
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f I8 1 :y G ,9 4 ,I 4 FIG] Plas FIGIQ Il? l a Z' ls .u y 3 Il): l@ I' I lo II A io WITNESSES. INVENTOR.
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SAMUEL A. BENNER, 0F PITTSBURGH, PENNSYLVANIA.
l sinn-FRAME coNsrnUorIoN.
`Specification of Letters Patenti Patented Nev. 1s, i917.
Application led February 25, 1914, Serial No. 821,242. Renewed-March 31, 1917. Serial No. 159,025.
To @ZZ whom it may/concern:
Be it known that l, SAMUEL A. BENNER, a citizen of the United States, and resident of Pittsburgh, in the county of Allegheny and State of Pennsylvania, have invented a nen7 and useful Improvement in Side-Frame Constructions; and l do hereby declare the following to be a full, clear, and exact description thereof.
My invention relates Vto improvementsin truck side-frames and is particularly concerned with the construction of a side-frame in which all parts, including the pedestal, are formed of rolled sections of steel.
T he object of the invention is theV produc tion of a side-framey of great strength in proportion to its weight and one in which the parts may be very readily and strongly assembled. l
A further object is to secure a very material reduction in the cost of manufacture, both in the production of the parts of the frame and also in the labor of assembling;
A further Objectis to so construct and arrange the parts that the riveting operations will be simplified as much as possible, by arranging the parts so that all riveting will be open riveting.
Furthermore, the side-frame forming the subject matter of this case has the advantage that the transverse webs of the compression and tension members and also of the pedestal are spaced as far as the limits of the construction will allow, from the neutral axis of strain of the frame. This neutral axis, as is well known to persons skilled in this art, is in the line at which the compression and tension strains neutralize each other in a truss of the form here considered, and extends longitudinally of the frame and a little below the center of the pedestal. By so locating the webs of the main truss members of the f 'ame at the maximum distance from this neutral line, the greatest possible strength is secured.
In the drawings, which illustrate a preferred embodiment of the invention, Figure 1 is a section of a form of compression member employed. Fig. 2 is a side elevation.
Fig. 3 is a plan view of the side frame. Fig.
#l is a partial elevation and partial vertical section of the side-frame. F ig. 5 is a vertical transverse section on the line 5 5, Fig. 4; F ig. 6 is a transverse section on the line 6 6, Fig. 4; Fig. 7 is a section on the line 7 7, Fig. e; Fig. 8 is a section on the line 8 8, Fig. 4, and F ig."9 is section on the Vline 9 9, Fig. 4.
lThe lower flanges 3 3 are preferably cut away along the lines 7 7. lThe lateral flanges 4 4 are cut away along the lines 8, Fig. 3, thus producing at thesection line 8 3, Fig. 1, a cross-section such as shown in Fig. 3,`while at the center the flanges 4 4 are shown in their full width as in the crosssection 5 5, Fig. 5, from the points 9 9, Fig. 3, at which the flanges 4-4 disappear altogether and the depending flanges 3 3 of the compression member are inset in proper dies to bring them to the position shown in the cross-section 7 7, Fig. 7 in other words, directly in alinement with the upstanding flanges 2 2 on the upper side of the web l.
y The sheared away portions of the flanges 3 3 along the lines 7 and flush with the web l, bring the outer ends of the compression member into the cross-sectional form shown4 in Fig. 6. ln other words, these ends are reduced to simple upwardly opening channel form. Y
This compression member so sheared, is then bent to the shape shown in F ige.
The Ytension member of the side-frame is preferably formed of a rolled section such as that illustrated in Fig. 5, and comprises a web l0, the side-walls ll andlaterally extendingy flanges l2. These lateral flanges are sheared off along the lines 13,'Fig. 3, to
also be employed with advantage as a truck or car bolster by simply providing the central portion thereof with a suitable form of center bearing plate, and by securing at the ends side bearing plates and bolster guides. Such parts are not specifically illustrated but it is to be understood that this invention is intended to cover not only a side-frame including such compression member, but also such member per .Se considered as a car part.
Vhile I have herein shown and described a particular embodiment of the invention, it is to be understood that the same may be altered in details and relative arrangements of parts within the scope of the appended claims.
'lV hat I claim is:
l. A truck side frame having its compres sion and tension members formed of rolled channel shaped sections, one of which has channel shaped portions narrower than those of the other, so that the ends of one member may nest within the corresponding ends of the other', either one or both of said channel shaped sections being of double channel differential shape.
2. A truck side-frame having its compression member formed of a rolled differential channel shaped section, and a tension member formed of a rolled channel shaped section, the upper channel of the compression member being of less width than that of the Ytension member whereby the upwardly opening channel shaped ends of the compression member may nest within the channel shaped ends of the tension member, the upper flanges of the compression memberv being sheared at the central portion thereof, to bring the central portion of the web of the. compression member toward or to the top.
3. A truck side-frame having itscompression member formed of a rolled differential channel shaped section, and a tension member formed of a rolled channel shaped-section, the upper channel of the compression member being of less width than that of the tension member whereby the4 upwardly opening channel shaped ends of the compression member may nest within the channel shaped ends of the tension member, the upper flanges of the compression member being sheared at the central portion thereof to bring the central portion of the web of the compression member toward or to the top, the lower flanges of the compression member being sheared olf adjacent the ends thereof to permit said ends to be nested within the corresponding ends of the tension member.
gl. A truck side-frame having its compression member formed of a rolled differential channel shaped section, and a tension member formed of a rolled channel shaped Y' section, the upper channel of the compression member being of less width than that ber being sheared at the central portion thereof to bring the central portion of the Vweb of the compression member toward or to the top, the lower flanges of the compression member forming at the central portion thereof a downwardly opening channel to receive the upper side of the pedestal.
5. A truck side-frame having its compression member formed of a rolled differential. channel shaped section, and a tension member formed of a rolled channel shaped section, the upper channel of the compression member being of less width than that of the tension member whereby the upwardly open. ing channel shaped ends of the compression member may nest within lthe channel shaped ends of the tension member, the upper flanges of the compression member being sheared at the central portion thereof toA bring the central portion o f the web of the compression member toward or to the top, the downwardly opening channel portion at the center of the compression member and the upwardly opening channel portion at the center of the tension member forming seats to embrace the 'upper and lower portions respectively of the pedestal member.
6. A truck side-frame having its compression member formed of a rolled di'erential channel shaped section, and a tension member formed of a rolled channel shaped section, the upper channel of the compression member being of less width than that of the tension member whereby the upwardly opening channel shaped ends of the compression member may nest within the channel shaped ends of the tension member, the upper flanges of the compression member being sheared at the central portion thereof tobring the central portion of the web of the compression member toward or to the top, the compression and tension members having oppositely opening channel portions at the central portions thereof, and a pedestal member composed of a rolled channel shaped section having its web at its outside, said pedestal member being seated within the channel portions of the compression and tension members respectively, with p its web in contact with the webs of the compression and tension members respectively.
7. A truck side-frame having its compression member Vformed of a rolled differential channel shaped section, and a tension member formed of a rolled channel shaped section, the upper channel of the compression member being of less width than that of the ytension member whereby the upwardly opening channel shaped ends of the compresf sion member may nest within the channel shaped ends of the tension member, the upper flanges of the compression member being sheared at the central portion. thereof to bring the central portion of the web of the compression member toward or to the top, said compression and tension members having oppositely opening channel portions at the central parts thereof respectively, and a pedestal formed of a rolled channel sect-ion of the same width throughout and having its web at the outside thereof, said pedestal being adapted to be seated within the central channel portions of the compression and tension members, respectively.
8. A truck side-frame having its compression member formed of a rolled diderential channel shaped section, and a tension vmember formed of a rolled channel shaped section, the upper channel of the compression member being of a less width than that of the tension member whereby the upwardly opening channel shaped ends of the compression member may nest within the channel shap( il ends of the tension member, the upper flanges of the compression member being shoared at the central portion thereof to bring the central portion of the web of the compression member toward or to the top, said compression and tension members respectively having oppositely opening central channel members of the same inside width, a pedestal formed of a rolled channel section of uniform width throughout having its web at the outside thereof whereby said pedestal member may be seated wit-hin said channel portions of the compression and tension members respectively, vith the web of said pedestal in contact with the webs of the compression and tension members respectively.
9. A truck side-frame having its compression member formed of a rolled differential channel shaped section having the side walls of the lower channel sheared o at the ends of the section, and having the side walls of the upper channel sheared ofi' at the' center port-ion, a tension member formed of a rolled channel shaped section, of a width to snugly receive the upper channel shaped end portions of the compression member whereby said ends may be nested snugly within the channeled end portions of the tension member, and whereby the web of the compression member vill be at the top at the center of said member and the web of the tension member will be at the 'bottom throughout said member.
l0. A truck side-frame havin@ its compression member formed of a rolled differential channel shaped section having its web extended laterally at either side of the channel portions to form strengthening flanges and a tension member formed of a channel shaped section, the lower flanges and the lateral flanges of'said compression member being sheared off adjacentL the ends of said member whereby said ends may be nested within thel channel shaped ends ofthe tension member.
1l. A truck side-frame having its com pression member formed of a rolled differential channel shaped section having its web extending laterally at either side of the channel portions to form strengthening flanges and a tension member ormedof a channel shaped section, the lower flanO'es and the lateral flanges of said compression member being sheared off adjacent the ends of said member whereby said ends ni ay be nested within the channel shaped ends of thetension member, the side walls of the tension member having laterally extending flanges to laterally reinforce said memberand to form a broad bearing for the spring base plank.
12. A truck side-frame having itsl compression member formed of a rolled differential channel shaped section having its web extending laterally at either side of the channel portions to form strengthening flanges and a tension member formed of achannel-shaped section having its side-walls flanged laterally, the lower flanges and the lateral fianges of said compression member being sheared off adjacent'the ends of said member whereby said ends may be nested within the channel shaped ends of the tension member, the lateral flanges of said tension member vbeing sheared olf at the 'ends to eliminate material not necessary for effective strength and to afford clearance for the wheels.
13. A truck side-frame having its compression member formed of a rolled diderential channel shaped section the side walls of the lower channel being sheared ofl' ad jacent the ends of said section, the side walls of the upper channel being sheared off at the center to bring the web of said section toward or to the top at the center thereof and leave upwardly opening channel shaped ends for said member and a downwardly opening channel shaped central portion for said member, a tension member formed of a channel shaped section of an inside width equal to the inside width of the downwardly opening channel shaped portion of' the compression member, and a pedestal formed of a rolled channel section of uniform width throughout whose web is at the outside thereof, said pedestal being adapted to be received within the downwardly opening channelof the compression member and the upwardly opening` channel of the tension member whereby the side walls of said pedestal may be riveted to the side walls of the compression and tension members, respectively.
14. A truck side-frame comprising a compression member having upwardly opening channel shaped portions at its ends and a downwardly opening` channel shaped portion at its center whereby the web ot said member forms the bottom walls thereof at the ends ot' said member and the top wall thereof, at the center of said member and a tension member formed of a rolled channel shaped section within the channel shaped ends of which the channel shaped ends of the compression member are received and secured.
15. A truck side-frame comprising a compression member ha *ing upwardly opening channel shaped portions at its ends and a downwardly openingchannel shaped portion at its center whereby the web of said member forms the bottom walls thereotl at the ends and the top wall thereof at the center, and a tension member formed of a rolled channel shaped section within the channel shaped ends of which the channel shaped ends of the compression member are received and secured, and a pedestal formed of a channel shaped section adapted to be seated and secured within the central channel shaped portions of the compression and tenupwardly opening` channel shaped portions.
at its ends and a downwardly opening channel shaped portion at its center whereby the web of said section extends along the bottom at the ends and adjacent the top of the section at the central portion thereof and extends diagonally between said end portions and said central portion.
1S. A truck side-frame having its compression member formed of a rolled diien ential channel shaped section and a tension member formed of a rolled channel shaped section, the upper channel of the compression member being` of less width than that oit' the tension member, whereby the upwardly opening channel shaped ends of the compression member may nest within the channel shaped ends .of the tension member, the inside width of the downwardly opening channel portion of said'compression member being` initially the same as tnat of the tension member, the side walls ot said downwardlj7 opening channel portions of the compression member being` sheared off adjacent the ends of said member and the slieared ends of said side walls being` inset to fit within the adjacent portions of the tension member.
19. A. trucl; side-frame having its conipression member formed of a rolled difierential channel shaped section, the upper' channel of the compression member being of less width than that of the tension member whereby the upwardly opening channel shaped ends ot the compression member may nest within the channel shaped ends of the tension member, the upper iianges of the compression member being sheared at the central portion thereot` to bring the central portion of the web of the compression member toward or to the top, said compression and tension members respectively having oppositely opening` central channel menibers of the same inside width, a pedestal formed of a rolled channel section, the outside width of pedestal being same as inside width of opposite channel parts of compression and tension members, whereby said pedestal member may be seated within said channel portions ot the compression and tension members respectively, with the web of said pedestal in contact with the webs of the compression and tension members respectively.
In testimony whereof, l the said SAMUEL A. BENMSR, have hereunto set my hand.
SAMUEL A.. BENNER.
`Witnessesz JOHN F. WILL, JOHN R. KELLER.
Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington, D. C.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US15902517A US1246381A (en) | 1917-03-31 | 1917-03-31 | Side-frame construction. |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US15902517A US1246381A (en) | 1917-03-31 | 1917-03-31 | Side-frame construction. |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| US1246381A true US1246381A (en) | 1917-11-13 |
Family
ID=3314151
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US15902517A Expired - Lifetime US1246381A (en) | 1917-03-31 | 1917-03-31 | Side-frame construction. |
Country Status (1)
| Country | Link |
|---|---|
| US (1) | US1246381A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2620744A (en) * | 1949-03-25 | 1952-12-09 | William E Gray | Railway car truck side frame |
-
1917
- 1917-03-31 US US15902517A patent/US1246381A/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2620744A (en) * | 1949-03-25 | 1952-12-09 | William E Gray | Railway car truck side frame |
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