US1047442A - Locomotive-tender underframe. - Google Patents

Description

H. M. PFLAGER.

LOCOMOTIVE TENDER UNDERFRAME.

APPLIGATION FILED OGT. 28. 1911.

Patented Dec. 17, 1912.

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APPLICATION FILED OCT. 28, 1911,

Patented Deo. 17, 1912.

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HARRY IVI. PFLAGER, OF ST. LOUIS, MISSOURI, ASSIGNOR TO THE LOCOMOTIVE TENDER FRAME COMPANY, 0F ST. LOUIS, MISSOURI, A CORPORATION OF DELAWARE. 'y

LOCOMOTIVE-TENDER UNDERFRAIVIE.

Speciication of Letters Patent.

Patented Deuil?, 11912.

Application led October 28, 1911. Serial No. 657,266.

To all whom tt may concern.'

Be it known that I, HARRY M. PFLAGER, a citizen of the United States, residing at St. Louis, Missouri, have invented a certain new and useful Improvement in Locomotive- Tender Underframeapof which the following is a full, clear, and exact description,`

underframe. Fig. 4 is a transverse sectiontaken on the line 1- 4 of Fig. l. Fig. 5 is a transverse section taken on line 5-5 of Fig. 1. F ig. 6 is a rear elevation of the underframe.

This invention relates to new and useful improvements in locomotive tender underframes, the object being to lower the center of gravity of the tank carried by the frame.

In locomotive tenders now commonly inservice, the tank rests upon a floor which is in turn supported by an underframe which varies from 10 to 15 inches in depth. As the oor level of various types of locomotives now in use is relatively high, and as itis necessary to locate the floor of the tender on the same plane, this leads to raising the center of gravity of the tank to a comparatively great distance from the rail' which produces a strong tendency of the tank to overturn when rounding curves.

B my improvement the center of gravity of tlie tank is lowered and the above mentioned tendency to overturn is thus overcome. The ytank is bifurcated at its front portion to provide the usual receptacle for coal, and if desired., the side and rear walls may be raised above the tank proper to increase the coal carrying capacity of the tank. The tank is further provided with a recess in the under side of its rear portion which enables the tank to straddle the underframe `the center sill of the tender frame.

and extend down on each side thereof, and

between the front and rear end sills whereby l am able to utilize for tank purposes a large portion of the s ace ordinarily occupied by the tender un erframe. The sides of the central portion of the tank are supported by suitable cross bearers whichy cxtend laterally from the central portion of The top surfaces of these cross bearers occupy a plane a substantial distance below a plane occupied by the top of the center sill and the usual side bearings (not shown) are applied to the sides of the end portions of these cross bearers. By extending the side members of the tank down between the end sills of the underframe, the tank is held firmly in position and is prevented from sliding off of the underframe in the event of collision, and as the tank straddles the centerpmember of the underframe, sidewise displacement .is also prevented.

ln the drawings 1 designates the front end sill of the tender frame and 2 the rear end sill. The front end sill is preferably provided with the usual opening 1a for a pocket coupler by means of which the ten` der is coupled to the locomotive. rllhe rear end sill 2 is preferably of the usual box type and provided at its center with a opening 28L which accommodates the draw bar by means of which the tender is coupled to an adjacent car. Extending transversely beneath this opening 2a is a detachable draw bar carry iron 3.

4 designates the center sill of the frame which is of the usual boX type and having its top and bottom plates preferably perforated for the purpose of lightening the weight of the entire underframe. rl`he ends of the center sill are formed integral with the end sills 1 and 2, and formed integral with the end sills and under portions of the center sill are diagonally disposed braces which materially strengthen the ends of the structure and provide supports for the end vportions of the tank located on the frame.

of the sides thereof are cross bearers 6 which are preferably hollow, and which serve as supports for the central portion of .the tank located upon the frame.

The tank, which is supported by my improved frame, is preferably constructed of heavy sheet metal and comprises a rear portion 7 which occupies a position on the rear portion of the underframe immediately adjacent the end sill 2, and formed in the under side of thisl portion of the tankv is a longitudinally extendingspace 8 which receives the rear portion of thecenter sill 4. The under side of the portion 7 of the tank rests directly upon a pair of cross bearers 6. The forward portion of the tank is bifurcated and the parts 8formed by such construction vrest upon the forward air of cross bearers 6 andthe extreme orward ends of said/parts bear against the rear side ofthe endsill 1. A floor 9 connects the parts 8 of the tank and said floor lies directly upon the forward portions of the center sill 4. The space above this floor between the parts 8 forms arece'ptacle for coal, and if desired, a rear wall may be extended upward from the portion 7 and side walls v may be extended upward from the sides of the tank to form'additional coal space thereby materially increasing the coall 'carrying capacity of the tender.

races 5.

My improvedtender frame is preferably cast in a single piece, as shown and described, although it is obvious that the frame maybe built up from special castings or from ordinary commercial shapes.

A tender under frame of my improved construction is comparatively' light in weight, is very strong and rigld, has great carrying capacity and the center of the tank mounted on the underframe is located at a .comparatively low point soas to overcome the tendency of the tender to overturn when rounding curves. The tank when properly positioned on the underframe straddles the center sill 1 and rests upon the cross bearers 'and the diagonally disposed braces 5, with itsends bearing directly against the inner -faces of the end sills 1 and`2 and thus said tank is eiectually prevented from sliding movement ,both lengthwise and laterally during service or in case of wrecks.

It will be readily understood that minor changes, in the size, form and construction of the various parts of'm rimproved tender yunderframe may' Be ma e Iand substituted for those herein shown and described without de arting -from the spirit of m invention, t 1e scope of which 1s set fort in the appended claims.

\ I claim: 1. Ay Vlocomotive vtender comprising an p The extreme under portions of the'tank are-supported by the` underframe consisting of end sills and a centersill, and a tank straddling said center sill with its ends bearing against the end sills whereby said tank is held against longitudinal and transverse movement with respect to the underframe. 1

2. In avlocomotive tender, the combination of, an underframe comprising end sills and a center sill, and a tank straddling the center sill, the ends of which tank bear against the inner faces of the end sills.

3. In a locomotive tender, the combination of, an underframe comprising a center sill and end sills, a tank arranged between said end sills and supports for said tank, which supports are carried by said center sill.

4. A locomotive tender, com rising an underframe, consisting of end sil s, a center sill, laterally projectin tank supports on said center sills intermediate ofthe end sills, and-a tank straddling the center sill and bearing upon the lateral supports and against the end sills.

5. In a locomotive tender underframe a hollow box shaped center sill, end sills integrally connected .to` said center sill and diagonally disposed tank supporting members arranged between the lower portions of.

the center sill and end sills.

6. In a locomotive tender underframe, a hollow box shaped center sill, end sills integrally connected to. said center sill and diagonally disposed tank supporting members arranged between the lower portions of the center 4 faces of which supporting members occupy a plane substantially belowthe plane occupied b )lfl the top surfaces ofthe center and end s1 s.

7. Thecombination with a locomotive tender underframe having a center sill and end sills, of a tank straddling said center sill with the side portions of said tank extended downward on the sides of said center sill and the ends of which tank inner faces of the end sills.

8. The herein described locomotive tender underframe formed in al single piece and comprising a box shaped center sill, end sills,

diagonally disposed tank supporti-ng members arranged between the end portions of the center sill and the end sills, and tank supporting members vprojecting laterally from the sides of the center sill, all ofwhich tank supporting members lare arranged below the plane occupied by the top' surfaces of the center and end'sills.

9. The combination with a locomotive tender underframe, havin a center sill and end sills,.of a tank stra dling said center sill with the side portions of said tank extending downward to the sides of the center sills, and su central portion of the tank.

bear against, the

sill and end sills andthe top surpports on the center sill for the 10. The combination with a locomotive ln testimony whereof l hereunto aiix my tender underframe havin a center sill and signature in the presence of two witnesses, end sills, of a tank straddlin said. center sill this 20th day of ctober, 1911. with the side portions of s'ai tank extending H. M. PFLAGER.

E downward to the sides of the center sills, Witnesses:

and supports on the center sill for the cenf ARTHUR T. MOREY, tral and end portions of the tank. HAL C. 'BELLvILLm

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