US1751321A - Locomotive smoke-box front - Google Patents

Description

March 18, 1930. H. GLAENZER LOCOMOTIVE SMOKE BOX FRONT Filed Feb. l5, 1929 2 Sheets-Sheet l llillf lill/1111111111111111111111111'lllqnnllzllllll' March 18, 1930. H, GLAENZER 1,751,321

LOCOMOTIVE SMOKE BOX FRONT Filed Feb. 13, 1929 2 Sheets-Sheet 2 Zwemw Patented Mar. 18, 1930 UNITED rAlrEs HARRY GLAENZER, OF PHILADELPHIA, PENNSYLVANIA LOCOMOTIVE SMOKE-BOX FRONT Application filed February 13, 1929. Serial No. 339,653.

My invention relates to certain improvements in the front of a locomotive fire-box which is designed to be hinged to the smokeboX, so thatthe entire end of the smoke-box can be opened, and provided with a small door opening. In many large locomotives it has become necessary to mount the air cylinder at the end of the smoke-box as well as the bell and other fixtures.

The object of my invention is to make the smoke-box front of a steel plate with reinforcing or stiening members welded to the back thereof, and brackets welded to the iront for supporting the fixtures such as air pump bells, etc.

In the accompanying drawings:

Fig. 1 is a View in elevation of my improved smoke-box front for locomotives;

Fig. 2 is a rear view of the same;

Fig. 3 is a side View;

Fig. 4 is a vertical sectional view on the line 4 4, Fig. 1; and

Fig. 5 is a sectional plan View on the line 5-5, Fig. 1.

The front plate 1 is preferably of steel, circular in form in the present instance and having a series of holes near its periphery for the bolts which secure the front to the body of the smoke-box. In the lower portion of the plate l is a small door opening 2 to allow access to the interior of the smoke-box,

avoiding the necessity of removing the entire front. Below the opening 2 is a plate Shaving hinge butts for a door which closes the opening 2, the plate being welded to the `front.

At one side of the structure is a hingebracket 4, preferably of cast steel, which is welded to the face of the front as shown. On

the bracket are the hinge butts 5*.5 through which a pintle extends on which the door swings. The pintle passes through brackets on the smoke-box (not shown).

Welded to the upper portion of the front is a bell-bracket 6 made from sheet steel, cut

and bent to form two arms 7, a cross-bar 8 and ianges 9, which are welded to the front. Welded to the arms 7 are bosses 10 for the bell trunnions.

On the face of the front are two set-s of vertical Z-bars l1-11, which are welded to 50 the front and are perforated for the bolts which secure the air pumps to these bars which support the pumps. Extending from one Z-bar to the other of each set is a bar 12, which forms a lip which in turn aids in supporting the pump. This bar is welded to the -Z-bars. While I have shown the bars 11-11 as Z-bars, their cross-section may be varied as desired. l

In the present instance, on each side of the centre of the plate 1 are welded thereto `iiag fixtures 13. Welded to the back of the plate 1 are reinforcing braces 14, 15 and 16-16. The'brace 14 is a transverse brace, and the brace 15 is a vertical brace for stiffening the upper portion of the plate, while 16-16 are vertical braces for stilening thelowerpor- Vtion of the plate on each side o the door opening 2. The plate 1 is not only reinforced by the braces at the back of the plate but also by the vertical bars at the front of the plate to which the air pumps are secured.

These braces may be of any suitable type in cross-section. In the present instance I have shown the braces made from bulb angle bars.

The smoke-box front described above can be made comparatively light and very substantial, and as all the parts are welded to the main plate, there is no liability of the parts becoming loose, eliminating the possibility of air leaks through omission of bolt holes necessary to connect parts; much machining is omitted; and the cost of manufacture considerably reduced. '3

I claimzs The combination in a locomotive fire-box front plate, of a sheet metal plate circular in form, having perforations near-its periphery for the bolts by which the plate is secured to t the smoke-box; two sets of vertically arranged angle bars Welded to the face of the plate, the bars of each set spaced a given distance apart; a supporting cross-bar extending from one bar of each set to the other bar,

said bars acting to reinforce the plate; reinforcing braces at the back of the plate, one of said braces extending horizontally directly back of the cross-bar at the front of the plate. Y

HARRY GLAENZER.

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