US134741A

US134741A - Improvement in locomotive fire-boxes

Info

Publication number: US134741A
Authority: US
Publication date: 1873-01-14
Anticipated expiration: 1890-01-14

Description

C. H. FARLEY.

Locomotive Fire-Bnxes.

No. 134,741, l y. Patented Jan. 14.1873.

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UNITED STATES PATENT OFFICE.

CYRUS H. FARLEY, OF PORTLAND, MAINE.

IMPROVEMENT IN LOCOMOTIVE FIRE-BOXES.

Specification forming part of Letters Patent No. 134,741, dated January 14, 1873.

the disturbance of the dust on the road. My

improvements consist mainly in a fire-box arranged and operated, as will be hereinafter more fully described, so as to admit the air and regulate the draft through the sides instead of, as heretofore, through the bottom, and of providing suitable guards, so arranged as to prevent the draft from entering on a line below the horizontal, and preclude the drawilng up of the snow, or the disturbance of the ust.

In the drawing, a represents the bottom of a box or pan, having vertical sides b formed at the top with horizontal flanges or outer projecting frame c, below which, extending lengthwise a suitable distance, are apertures or iiues d, that extend vertically to near the bottom of the interior of the box or pan. Gonnected with the bottom and sides of the box or pan at each corner are vertical right angled standards e, between which are hung, so as `to swing back and forth, dampers j', each of which is operated by means of an arm, g, pivoted or hinged to the damper, and connected by a pivot with a vertical arm, h', passing through a slot, in the bottom a, and forming one end of a bent lever, h, that is operated back and forth in guides c lo, by a pivoted lever, Z, formed with forward and cross arms, l l, that engage with and operate similar bent levers h, connected with the other dampers f; or the dampers f may be provided with and operated by any other suitable mechanism that may be preferred to open and close them. Attached to the bottom of the exterior of the box or pan a, and sloping outward on each side and upward a sufficient distance to allow a passage for the air at the top between them and the anges or frame c, are guards m, which serve to ward off the snow and prevent a direct upward draft. Supported on the bottom of the box or pan a is a fire-pan, p, having inclined sides p', and of the proper size to allow of the working of the dampers f, and to admit the passage of a sufficient quantity of air. Resting on the top of the frame c, and extending over the top of the sides of the lire-pan p, are curved plates or shieldszgforminganair-space,s,throughwhich air is admitted from the iiucs d into the top of the fire-pan p.

Heretofore in locomotive fire-boxes, of similar arrangement as the above described, much objection has been experienced by the deadening and .quenching of the fire bythe drawing up of snow, and by the whirling of the dust, caused by the direct upward draft created by the admission of the air through apertures or flues arranged under the bottom or horizontal line of the fire-pan.

-In my improvements it will readily be observed, by referring to the drawing, that the ilues d, through which the air is admitted are -in the sides above the bottom of the. horizon- `tal line of the fire-pan p, and that they are,

moreover, protected by the inclined guards m, so that a direct upward draft is prevented, the draft being directed downward over the top of the guards m, which are in a form to throw off and prevent the entrance of any snow through the flues, which are regulated so as to check or increase the draft by the operation of the dampersf.

Instead of the dampers f being arranged on the inside of the box, as herein shown and described, they may, if desired, be arranged to operate on the outside of, and form guards to, the flues d.

Having thus fully described my improvements, what I claim as my invention, and desire to have secured to me by Iletters Patent, 1s

1. A locomotive nre-box provided with inclined guards m, arranged substantially as and for the purpose specified.

2. The combination of the inclined guards on, and nues d, and dampers f, arranged in a locomotive fire-box, substantially as and for the purposes set forth.

In testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses.v j 4 Witnesses: OYRUS H. FARLEY.

JonNE. Dow, GEO. S. LESTER.