US1160305A - Locomotive-drafter. - Google Patents

Description

1. H. MAc LAUCHLAN.

LOCOMOTIVE DRAFTER.

APPLICATION FILED APR-1,1915.

Patented Nov. 16, 1915.

Inventor: 2134mm W @W I L; Atty JAMES H. MACLAUGHLAN, OF NEW YORK, N. Y.

LOCOMOT IVE-DRAETER.

Specification of Letters Patent.

Patented Nov. 16, 19 15.

" Application filed April 1', 1915. Serial No. 18,488.

To all whom itmayconcemq Be it known that I, JAMES H. MAoLA oH- LAN, a citizen of the United States of America, residing at New York city, in the county, a and State of New York, have invented .cer-

tain new and useful Improvements in Locomotive-'Drafters, of which the following is a specification.

My invention relates to an improved locomotive drafter.

Devices of this kind usually form part of a roundhouse equipment, and serve to induce draft in a locomotive furnace to restore the locomotive to service condition after .its fires have been'banked, or drawn, for various reasons.

' Locomotive drafters include, as essential elements, a fan or eXhauster and an uptake pipe for connecting the stack of a. locomotive with the fan. Tosecure the greatest efficiency in operation of the drafter it'is necessary that the action of-thefan on the locomotive'furnace shall be as vigorous as possible, and the primary purpose of in- 'vention is to provide a construction wherein the maximum efficiency ofthe fan is obtainable. 1 accomplish 'thisobject by so 'arranging the fan that it may revolve in a horizontal plane, and by connecting the locomotive stack to the fan by means of a straight uptake pipe, free of all bends or elbows likely to detract from the effective suction action of the fan. The uptake pipe is; preferably of telescopic construction, so

as to be capable of increase or decrease in 40 and away from the outlet of the engine stack. It has heretofore been usual to provldeseparate controlling means forlncreasmg or decreasingthe length of the uptake pipe, and for swmgmgthe samefrom side to side: This arrange-mentis cumbersome,

and time consuming inoperation, and an other object of my invention is to provide means, operable from a single controlling ptiihti for increasing or decreasing the "ieagaroraienpeke pipe as,well as for me ing it frdiiiside to side. Such controlling means feiably include a flexible cord or chain house floor within convenient reach of an operator.

a riding to apoint near the round-,

The detail construction and operation of the invention will be clearly understood from the following description thereof, in connection with the accompanying drawin wherein Figure 1 is an end elevational view of the improved locomotive drafter, showing the uptake pipe in position over the locomotive stack outlet, the dotted line position illustrating the oscillating or swinging capacity of. this pipe; Fig. 2 is a side elevational view thereof; and Fig. 8 is a detail view, partly in section, of a part of the means for operating the uptake pipe.

Referring to the drawing, 10 denotes the roof of around house, upon which is supported a head house 11, inclosing the suction mechanism for the locomotive drafter.

Resting upon the round house roof 10, ar the supporting arms 12 for a fan or exhauster 13. This fan may be of any approved type, but it is essential for the purpose of my invention that it be arranged to revolve in a horizontal, or substantially horizontal plane, as indicated in the drawing. The fan is preferably driven by an electric motor, designated as a whole by the numeral 14:. Theoperationof the motor is switch con trolled, as usual.

The casing of the fan 13 is suitably con- .nected with an olfta'ke pipe 15, which projects beyond thehead house roof, and serves to conduct the exhaust productsof the fan 13 to atmosphere at a point higher than the top of the roundhouse.

. Dependingfrom thecasing of the fan 18 is a nipple or relatively short pipe extension IS, in which is pivotally supported the upper end of the uptake pipe,'consisting of the telescoping sections 17 and 18, the sec-" tion 17 preferably, although not necessarily, telescoping within the section 18.

The edge of the nipple 16 is provided with, or formed as, a packed or gasketed flange 19 to prevent escape of steam or smoke between the uptake pipe and the nipple 16. u u

The upper end of the pipe 17-18 is preferably. enlarged and substantially cylind-rical as indicated at 17*, and is pivotally supported by pins 20 carried in the hangers 21, secured to the casing of fan 13. Two pins 20and two hangers 21 are used, although but one of each appears in the drawing.

* The lower end of the pipe l7-*18 is "pr o vided withan enlarged cylindrical hood 22,

designed to rest upon the outlet end of the stack23 of a locomotive 24. Owing to the cylindrical inner configuration of the hood,"

a tight connection between the same and the stack 23 is obtained, even-though the pipe 1718 be inclined with respect to thestack,

-ties;-Embracingthe pipe section 17 below its enlarged head 17 is a collar projecting outwardly from the uptake pipe and se cured in one leg of a substantially triangular socket 26. Secured in the other legofthe socket is one end of an inclined rod 27, the

opposite end of which is securedto thepipe' section 17 at about its median point. Projecting upwardly from, and rigidly attached to, the apex of the socket 26 is a link 28 pivotally connected to an arm or lever 29 (Fig, 3) formed at one end of a sleeve or hollow shaft 30 which extends along the round house roof in a direction at right angles to the axis of pipe l7*l8 when the latter is vertically pendent. The end of the sleeve 30 opposite that which carries the lever 29 is provided'with a worm wheel 31 which meshes with a worm 32 on a short shaft 33 extending at right anglesto :shaft 30. The shaft 30 and the shaft 33 are supported in a bracket 34 fixed to the round house roof. 'At one end, the shaft 33 carries a grooved pulley 35 over which the endless operating cord 36 isrove. This operatingfcordextends down to near the round house floor within easy reach of a person standing on the floor.

Lengthwise adjustment of the uptakepipe 17 18 is securedby means of the following instrumentalities:Attached to the pipe section 18, near itsupper edge, is one end of a cable or wire 36 which passes over a sheave 37 on the side of pipe section 17, over a second sheave 38 in the socket 26, and has its opposite end secured to the periphery of agrooved pulley'39 (Fig.3); interposed between the sheave 38 and the pulley 39'is. a

guide41 carried by. and projectinglout from the motor 14,'and serving to support one end of shaft 40 and to guide the cord 36. The

pu1ley'39 iscarried near one endof a shaftv 40 which is coaxial with, and surrounded by the sleeve 30. The end ofthe shaft 40 opposite that carrying the pulley 39 projects beyond the sleeve 30 and has secured thereto a worm wheel 42 meshing with a worm 43, formed on .a shaft 44 which extends at right angles to the shaft 40. The shaft 44 is suitably supported on the round house roof, and carries at one end thereof a pulley 45 over whleh an endless operating cord 46passes. The cord 46 extends down toward the houndhouse fioor about the same distance as the cord 36.

The operation of the invention will be understood from .the following description thereof. When an engine 24is to be subjected to the action of the drafter, the cord 7 46 is pulled so that shaft 40 will be revolved in a direction to raise the section 18 of the uptake pipe a distance above the top of the stack'23 0f the engine 24. Then one of the strands of cord 36. is pulled so as to rotate sleeve 30in the proper direction to swing the uptake pipe into a position where the hood 22 will be over the outlet end of stack 23. Thereafter the properstrand of cord 46 is operated to lower the hood onto the stack 23'and the exhauster is put into operation. After completion of the exhausting-e action theseetion 18 is raised to clear the stack 23 and the locomotive 24 movesaway. The pi e 1718 may be permitted to remain in its ast position until again required for.

use.

7 It will be noted that the lengthwise and side to side adjustment of the uptake pipe is controlled from one point by means of thecords 36 and 46, so that but one operator is required for the device. Furthermore, owing to the fact that the pipe l718 is straight from ,end to end, and the fan revoluble in a horizontal plane, the full efficiency of the fan is availed-of, and the plac and desire to secure end of said uptake pipe. v

2. A locomotive draft'er, comprising a straight uptake pipe having one end adapt ed for connection with a locomotive stack, and exhaust means revoluble in a substantially horizontal plane and communicating with the other end of said uptakepipe.

A locomotive drafter, comprising a telescopic uptake pipe having one end adapted for connection with a locomotive stack, and exhaust means revoluble in a substantially horizontal plane and communicating with the other end of said uptake pipe.

4. A locomotive drafter, comprising a telescopic uptake pipe having one end adapted for connection with a locomotive stack, exhaust means revoluble ina substantiallyhorizontal plane and communicating with',',the,, other end of'said'uptak'e pipe and n iea i for varying the length of saidflpipe g;

.5 A locomotive drafter, id-,1 escopic uptake pipe having one fen d. adapted for connection with a locomotive stack, exhaust means revoluble in a substantially horion izontal plane and communicating with the other end of said uptake pipe, and means for swinging said pipe from side to side.

6. A locomotive drafter, comprising a telescopio uptake pipe, having one end adapted for connection with a locomotive stack, exhaust means revoluble in a substantially horizontal plane and communicating with the other end of said uptake pipe, means for: varying the length of said pipe, and means for swinging said pipe from side to side.

7 A locomotive drafter, comprising a telescopic uptake pipe, having one end adapted for connection with a locomotive stack, ex-

haust means revoluble in a substantially 5 horizontal plane and communicating with the other end of said uptake pipe, means for varying the length of said pipe, and means for swinging said pipe from side to side, both said last named means including flexible operating members terminating at substantially the same point.

In testimony whereof I have affixed my signature in presence of two witnesses.

JAMES H. MAOLAUOHLAN. Witnesses:

CLARIOE FRANOK, OTTO MUNK.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington, I). C.

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