US761648A

US761648A - Railway-car truck-frame.

Info

Publication number: US761648A
Application number: US17588503A
Authority: US
Inventors: Sumner A Bemis
Original assignee: Bemis Car Truck Co
Current assignee: Bemis Car Truck Co
Priority date: 1903-10-05
Filing date: 1903-10-05
Publication date: 1904-06-07
Anticipated expiration: 1921-06-07

Description

PATENTED" JUNE-v; 1904; v.:

No..761,64 8. S.A.BEMIS. I

RAILWAY GAR TRUGK -PRAMEI APPLICATION FILED OUT 6 1903 K0 MODEL.

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Tm: uonms Pzrcns cmmcrnumu, WASHINGTON n a.

NO. 761,648. Patented June 7, 1904.

UNITE STATES PATENT OFFICE.

SUMNER A. BEMIS, OF SPRINGFIELD, MASSACHUSETTS, ASSIGNOR TO BEMIS OAR TRUCK COMPANY, OF NEW YORK, N. Y., A CORPORATION OF NEW JERSEY.

RAILWAY-GAR TRUCK-FRAME.

SPECIFICATION forming part of Letters Patent No. 761,648, dated une 7, 1904.

Application filed October 5, 1903. Serial No. 175,885. (No model.)

T "17mm it y concern: transom-bolster for carrying the car and such Be it known that I, SUMNER A. Burns, acititransom-bolster, and the spring-sustained carzen of the United States of America, and a supporting bolster. Fig. 2 isaplan view of a 5 resident of Springfield, in the county of Hampone end half of one side section of the truckden and State of Massachusetts, have invented frame, on a somewhat larger scale than Fig. 1.

certain new and useful-Improvements in Rail- Fig. 3 is a vertical cross-sectional view as seen v way-Oar Truck-Frames, of which the followin the direction of the arrow beyond the plane ing is'a full, clear, and exact description. indicated by line?) 3, Fig. 1, the car-support- 55 This invention relates to improvements in ing bolster and equalizing-bar not shown.

trucks for railway-cars, and pertains more Fig. L is a vertical cross-sectional View as particularly to what is termed the truckseen in the direction of the arrow beyond the frame, or that department of the truck which plane indicated by the line 4 4, Fig. 1, which serves to carry what may be regarded as the intersects the equalizing-bar, which is here in- 6 truck equipmentssuch, for instance, as eluded. Fig. 5 is a side elevation in detail I 5 the brake mechanism and the motor-such of a member of the truck-frame which contruck-frame being independent of the departstitutes the centrally-located jaws between ment or portion of the truck which constiwhich the car-supporting bolster is engaged.

- tutes the primary support for the Car-carry- Fig. 6 is a side elevation in detail of one set 6 5 ing bolster or bolsters, although the truckof the pedestals combined in the truck-frame frame is adapted for such a combination with at a location properly relative to one of the the car-supporting bolster as to constrain and journal-boxes.

guide the same in the up-and-down movements Similar characters of reference indicate corthereof and in such slight degree of transverse responding parts in all of the views. 7 play as the bolster may desirably be designed In this truck-frame, A A represent the into have. ner and outer pedestals, the same being sepa- The improved truck-frame is constructed. rately formed and arranged in separation, as more particularly with reference to making shown, to give space for occupancy and guidwhat istermed a built-up truck in the ance between and against them of the journal- 75 larger constructions, so that such frame may boxes B of the truck, one of which journal- 3 have an unusual degree of strength and rigidboxes is shown at the left of Fig. 1, said ity and may be produced in a practical and pedestals having the inner straight verticalconvenient manner, which would not be the facing surfaces. Each of the inner pedestals case were such frame made as a single cast A is formed with parallel extension-Webs a a, 80 structure. 1 understood as fitted between the end port-ions p The invention consists in parts formed and of the outer and inner side bars O O and secombined or arranged and connected, all subcurely fastened thereto by the bolts cl, said stantially as hereinafter fully described, and inner and outer side bars being arranged in set forth in the claims. 4 parallelism and'separation and advantageously 5 The improved truck-frame is shown in the composed of rolled refined iron-bar stock, 4 accompanying drawings, in whichwhile the pedestals are practically produced Figure 1 is a side elevation, the right-hand from cast-steel with a reinforcing cross-web portion thereof showing a half of one side secf between the extensions to a. tionof thetruck-frame,whiletheleft-hand por- D represents the part which comprises the 9 tionof the view shows not only the remainder inner and outer pair of jaws ff, the same beof the side section of the truck-frame, but it ing arranged in separation, as shown in the shows the journal-box and car-wheel, the porside elevation, and having the lower longitution of the truck structure which supports the dinally-ranging bar-like inner and outer uniting members f which uniting members may be transversely united by a similar connecting-web f the whole double-sided structuref ff being in practice formed of malleable iron, and the thickness and distance of separation of the longitudinally-ranging barlike members f f are such as to enable such last-named members to be closely disposed within and along and against the inner sides of the side bars 0 and C these closely-fitting parts being rigidly confined by the bolts 7 1 The jaws may be separately formed in opposite side sets and bolted, respectively, to the outer and inner side bars 0 C the bar-like and uniting base portions of the jaw-comprised structure may be located more or less near to the ends of the wings or webs of the inner pedestals, which are fitted and connected, as before mentioned, within the said paired and separated side bars.

F F represent blocks for resisting the thrust of the car-supportingbolster, (indicated at O in Fig. 1,) these members F' being fitted between each pair of the upstanding jaws f and securely fastened thereto by the bolts 0. The edges of the said bolster thrust-blocks which are toward the jaw-opening are located somewhat inside of the inner edges of the jaws, so that, in effect, a comparatively wide vertical groove z' is produced at the opposite inner edges of both said jaws, in which when the truck is assembled the bolster chafing-blocks H may fit and be guided vertically in unison with the movements of the bolster. and constrained against undesirable play in a transverse line of the truck.

Each bolster thrust-block has a longitudinal extension web or bracket g of rabbeted. or step form and level with similar bracket-webs 7L and b on the inner and outer pedestals, receiving connection therewith by bolting the top bars G thereto, each one of these top bars extending longitudinally across from a bolster thrust-block f to and along over the tops of the pedestals in bearing and bolted at 7' to the bracket-wbs thereof and are further extended obliquely downwardly, as at in, thence extended longitudinally horizontally, as at 1 and then vertically, as at 71:.

Each of the outer pedestals has an outer longitudinally-extending bracket-lug 0, connected to which is a tie-barp, the same extending to and having connection with the downturned end of the top bar at the extreme end of the truck.

J represents the end tie-bar, the same being bolted to the downturned portion 70 of the top bar and the angularly-turned end of the tie-bar p, setting against and being clamped to the inner face of the said end tie-bar.

Each of the top bars G makes a top chord for each trussed half of the truck-frame, and the trussed structure is furthermore reinforced by the intermediate braces q, extending between the bracket-lugs of the outer The outer ends of pedestals and the extremities Z of the top bars Gr at a different angle from that of the tiebars p.

The bottoms of the inner and outer pedestals are united in the usual manner by the pedestal tie-bars a, as shown, and the springcaps L above the journal-boxes are held up to the upper tie-bars (-1? each by the bolt and a reinforcing plate or bar a overlies the pedestals, resting on and being bolted to the top bars G.

The truck-frame, of which at each side of the truck are counterparts of the structure shown and described united by the end tie bars J and also by centrally-located tie-bars, maybe constructed for large and heavy trucks in a durable, strong, and reliable manner and with comparative convenience, and the structure as described and shown enables the combination therewith of the equalizing-bar M, having the angular end portions thereof resting on the tops of the journal-boxes, said equalizing bar, through the half elliptic spring W, sustaining the bolster O, on which the car is carried, for up-aud-down yielding movements, it being perceived that portions of the equalizing-bar may be disposed between the longitudinally-ranging side portions of truck-frame described.

Having thus described my invention, what I claim, and desire to secure by Letters latent, is-

1. In a truck-frame, in eombinatirm, an intermediately-located part comprising opposi le pairs of upstanding jaws ff, with a bolster accommodating space therebetween, and having longitudinally-ranging base portionsf, inner and outer side bars bolted to the base members f and extended endwise therebeyond, journal-box pedestals having extensions arranged alongside of said inner and outer side bars and bolted thereto, and uniting connections between upper portions of the jaws and upper portions of the pedestals.

2. In a truck-frame, in combination, an intermediately-located part comprising opposite pairs of upstanding jaws ff, with a bolsteraccommodating space therebetween, and having longitudinally-ranging base portionsf, inner and outer side bars bolted to the base members 1, and extended endwise therebeyond, journal-box pedestals having extensions arranged alongside of said inner and outer side bars and bolted thereto, bolster thrustblocks, fitted between and bolted 'to the jaws ff, and top bars Ur, overlyingon, and bolted to, and extended between, the upper portions of the bolster thrust-blocks and the pedestals.

3. In a truck-frame, in combination, inner and outer pairs of jaws, each comprising the upstanding jaw members ff, and the uniting base member f inner and outer side bars arranged in parallelism and bolted to the base members f, and extended endwise therebeyond, journal-box pedestals, the inner ones of wardly-opening bolster-space therebetween,

and having longitudinally-ranging base portionsf uniting each side pair of said jaws, inner and outer longitudinally-ranging side bars C C arranged sidewise against said base portions f and having bolts connecting such parts, and said side bars extending longitudinally beyond the ends of the base portions of the jaw-comprising parts, the separated outer and inner pedestals, the inner ones having longitudinally inwardly extending members arranged facewise against the extremities of the side bars and bolted thereto, blocks fitted between and connected to upper portions of said pairs of jaws ff, and the top bars G G overlying, bolted to, and extended between, the

tops of said blocks and the pairs of pedestals,

5. In a truck-frame, in combination, an in termediately-located part comprising opposite pairs of upstanding jaws f f, with an upwardly-opening bolster-space therebetween, and having longitudinally-ranging base portions f uniting each side pair of said jaws,'in ner and outer longitudinally-ranging side bars C C arranged sidewise against said base portions f and having bolts connecting such parts, and said side bars extending longitudinally beyond the ends of the base portions of the jaw-comprising parts, the separated outer and inner pedestals, theinner ones having longitudinally inwardly extending members arranged facewise against the extremities of the side bars and bolted thereto, blocks fitted between and connected to upper portions of said pairs of jaws ff, and the top bars G G over- .lying, bolted to, and extended between, the

tops of said blocks and the pairs of pedestals and further endwise extended terminating at a level lower than the tops of the pedestals, and tie-bars connecting the outer pedestals and the extremities of the top bars.

6,. In a truck-frame, in combination, an intermediately-located part comprising opposite pairs of-upstanding jaws f f, with an upwardly-opening bolster-space 'therebetween, and having longitudinally-ranging base portions f uniting each side pair of said jaws, inner and outer longitudinally-ranging side bars C (Y, arranged sidewise against said base portions f and having bolts connecting such parts, and said side bars extending longitu dinally beyond the ends of the base portions of the jaw-comprising parts, the separated inner and outer pedestals having the horizontal bracket extensions '7 Fat their tops, and the inner pedestals having longitudinally inwardly extendingmembers arranged facewise against the extremities of the side bars, and bolted thereto, the bolster thrust-blocks F E fitted between and connected to upper portions of said pairs of jaws ff, and having the horizontal bracket extensions 9 g, and the top bars Gr Gr overlyingthe bracket extensions of said thrust-blocks and of said inner and outer pedestals, and bolted thereto, and spanning the spaces at either side of the jawopening, between the thrust-blocks, and the inner ped. estals, and between the pairs of pedestals.

' 7. In a truck-frame, in combination, an intermediately-located part comprising opposite pairs of upstanding jaws ff with an upwardly-opening bolster-space therebetween and having longitudinally-ranging base portions f uniting side pairs of said jaws, inner and outer longitudinally-ranging side bars C C arranged sidewise against and along said base portions fand bolted thereto, and said side bars extending longitudinally beyond the ends of the base portions f, the separated inner and outer pedestals A and A having the horizontal top bracket extension It and if, each inner pedestal having a downwardly and longitudinally inwardly extending portion a, arranged facewise against and bolted to an extremity of the respectively-adjacent side bar, and each outer pedestal having at its lower portion a longitudinally outwardly extending bracket 0, the bolster thrust-block F fitted between and bolted to upper portions of the. pairs of jaws f f, being arranged with their inner edges removed from the inner edges of the jaws, whereby the grooves for bolster wise and terminating in the angular portion bolts connecting said top bars with the several said brackets, and the tie-bars connecting the lower outer pedestal-brackets 0 with the said top bar angular members 73, substantially as described.

8. In a truck-frame, in combination, an intermediately-located part comprising'opposite I pairs of upstanding jaws ffwith an upwardlyopening bolster-space therebetween and having longitudinally-ranging base portions f uniting side pairs of said jaws, inner and outer longitudinallyranging side bars C C arranged sidewise against and along said base portions f and bolted thereto, said side bars extending longitudinally beyond-the ends of the base portions f the separated inner and outer pedestals A and A having the horizontal top bracket extension 71, and ]b2, each inner pedestal having a downwardly and longitudinally inwardly extending portion 0/, arranged facewise against and bolted to an extremity of the respectively adjacent side bar, and each outer pedestal having at its lower portion a longitudinally outwardly extending bracket 0, the bolster thrust-block F fitted between and bolted to upper portions of the pairs of jaws ff, and having at their tops the bracket extensions'g g, and each top bar extending horizontally and longitudinally from a position over and against each bracket extension g over and upon the pedestal-brackets IL and if and having the downwardly-continued inclined portion is, the longitudinally-continued portion 70 and the downwardly-terrninating portion 71 bolts connecting said top bars with the several said brackets, the tie-bars 7) connecting the lower outer pedestal-brackets 0 with the said top-bar angular members if, and the braces 1 connected and extended between the pedestal-brackets 0 and the portions 71: of the top bars.

9. In a truck-frame, in combination, an intermediately-located part comprising opposite pairs of u pstanding jawsf f with an upwardlyopening bolster-space therebetween and having longitudinally-ranging base portions f uniting side pairs of said jaws, inner and outer longitudinally ranging side bars C C arranged sidewise against and along said base portions f and bolted thereto and said side bars extendinglongitudinally beyond the ends of the lease portions f the separated inner and outer pedestalsA and A having the horizontal top bracket extension lb and if, each inner pedestal having a downwardly and longitudinally inwardly extending portion u, arranged facewise against and bolted to an extremity of the respectively adjacent side .bar, and each outer pedestal having at its lower portion a longitudinally outwardly extending bracket 0, the bolster thrust-block l fitted between and bolted to upper portions of the pairs of jaws ff, and having at their tops the bracket extensions and the top bar extending horizontally and longitudinal] y from a position over and against each bracket extension r over and upon the pedestal-l)racle ets l2 and la? and continued downwardly and further ondwise and terminating in the angular portion Zr", bolts connecting said top bars with the several said brackets, the bars 1/ u on the top bars over the pairs of pedestals, the spring-caps next under the top bars in the spaces between the pedestals, bolts extending through the said caps, top bars and superimposed bars a, and the tie-bars connecting the lower outer pedestal-brackets 0 with the said top-bar angular members Z, and the tiebars J secured to the top-bar members A and extending crosswise of the truck-Frame, snbstantially as described.

Signed by me at Springfield, Massachusetts, in presence of two subscribing witnesses, this 25th day of September, 1903.

SUlVlNlCh A. BEMIS.

Vitnesses:

A. V. LEAIIY, W M. S. BaLLows.