US655819A - Mechanical stoker. - Google Patents

Description

Patented Aug. I4, 1900.

- W. R. WOOD.

MECHANICAL STOKER.

(Application filed Ap'r. 2, 1900.) {No.Mndel.) 2 Sheets$heet I, KO

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.MECHANICALSTOKER.

SPECIFICATION forming part of LettersPatent No. 655,819, dated August 14, 1900. Application filed April 2, 1900. Serial No. 11,166. (No model.)

To aZZ whom it may concern:

Be it known that I, WILFRED ROTHERY WVOOD, engineer, a citizen of the United States of America,'residing at 18 \Valbrook, London, England, have invented certain new and use ful Improvements in Connection with Me chanical Stokers, of which the following is a specification.

Mechanical stokers in which the fuel is fed by a pusher'or by a screw are well known, and the present invention relates to means which enable a furnace to be immediately fed by hand should the mechanical stokin g fail from any cause.

For the purpose of illustration let it be assumed that a screw-fed stoker has been applied to a Lancashire boiler.

In the drawings, Figure 1 is aside elevation, partly in section; Fig. 2, a front view; Fig. 3, a side elevation with the hopper in its reversed position, and Fig. 4 a front view of same.

In the drawings, 1 is the boiler; 2, the fuel feed casing; 3, the hopper, and 4 the motor for actuating the feed, such motor being placed below the level of furnace-door 5. On the outer end of the fuel-feed casing 2 bearing-surfaces are provided for the feed-hopper 3, which may be held in its upright position by a catch or pin 6, passing through the casing of hopper 3 and entering the fuel-feed casing 2, and when in this position the fuel is fed into the hopper and passes into the open top of the fuel-feed casing 2, and thenis fed to the furnace.

If the mechanical feed should cease for any reason and it is desired to at once resort to hand-firing, as is sometimes essential for electric-lighting and other systems, then pin 6 is removed and the hopper is at once turned down, as shown in Figs. 3 and 4t, and the furnace-door 5 opened, when hand-firing can be carried out in the usual way, the bottom casing of the hopper effectually covering the feed-opening into the screw-casing, and thus preventing ashes, clinker, or foreign substances from entering said casing while the hopper itself is out of the way, and yet acts as a shedding surface for any clinker or ashes removed from the furnace.

What is claimed is- 1. In mechanical stokers and in combination, a fuel-feed casing, trunnion-bearings formed upon the outer end thereof, a feedhopper mounted and capable of rotating on said bearings and means for holding said hopper in an upright position, substantially as and for the purposes set forth.

2. In mechanical stokers and in combination, a fuel-feed casing, trunnion-bearings formed upon the outer end thereof, a feedhopper mounted and capable of rotating on said bearings, means for holding said hopper in an upright position, and a feed-actuating motor situated mainly below the fuel-feed casing, all substantially as and for the purposes set forth.

In testimony whereof I have hereunto set my hand in the presence of two subscribing witnesses.

WILFRED ROTHERY WOOD.

Witnesses:

GEO. J. B. FRANKLIN, T. J. OSMAN.

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