US1633914A

US1633914A - Coal-spout-operating device

Info

Publication number: US1633914A
Application number: US5614A
Authority: US
Inventors: George M Wutzler
Original assignee: Individual
Current assignee: Individual
Priority date: 1925-01-29
Filing date: 1925-01-29
Publication date: 1927-06-28
Anticipated expiration: 1944-06-28

Description

2 4l 2 June 8 9- `7 G. M. wu'rzLr-:R

COAL SPOUT OPERATING DEVICE Filed Jan. 29. 1925 im@ g-n Il INVIQLNTOR G.M.WuTzLER BY M Va A'ITORNEYS Patented .lune 28, 1927.

UNITED STATES GEORGE M. W'UTZLER, OF WAUKEGAN, ILLINOIS.

COAL- SPOUT-OPERATING DEVICE.

Application led January My invention relates to improvements in coal spout operating devices, such as intended for use with continuous stokers, and it consists in the combinations, constructions, and arrangements herein described and claimed. 'I

An object of my invention is to provide a device of the character described which automatically moves the down spout of a coal bunker through an oscillatory path over the feeder trough of a boiler, furnace, or the like.

A further .Object of my invention is to provide a .device of the ch'aracter described in which the working parts are protected from unintentional engagement with falling pieces of coal or the like, and in which the covering also serves to shelter the lubricated working parts, which otherwise would become covered with a ydeposit of coal dust.

A further object of my invention is to provide a deviceof the character vdescribed which is entirely automatic in its operation, which-is compact inform, and which is thoroughly practical vfor the purpose intended.

A further object of my invention is to provide a device of the character described which may be readily disconnected from the spout as in manual operation of the spout.

Other objects and advantages will appear in the following specification, and the novel features of the invention will be particularly pointed out in the appended claims.

My invention is illustrated in the accompanying drawings forming part of this application, in which Figure 1 is a sectional view of an embodiment of my invention,

Figure 2 is a front elevation of the mechanism partially illustrated in Figure 1, and

Figure 3 is a front elevation of a part of the mechanism illustrated in Figure 2.

In carrying out my invention I make use ofthe ordinary type of boiler such as used in power plants, heating plants, and the like. I have shown a portion of the front portion of the boiler in dotted lines in Figure 1. Means for guiding coal and fuel, usually to a moving grate or feeding trough, is provided in a down spout 2 of ordinary construction which is adapted to swing back and forth across the feed trough or moving grate. This is well known in the art and needs no further explanation.

29, 1925. serial No.V 5,614:

My invention pertains to an automatic means for swinging the spout 2 through an oscillatory path over the trough or moving grate. 1

VThe device consists in a spout engaging member 3 which is substantially semi-annular in contour so as to partially encompass the side walls of the spout 2. This member 3 has a neck 4: and a substantially vertical flattened portion 5. The member 3 is pivotally mounted by means ofv abolt 6 to members 7 carried by a carriage 8.

The carriage 8 consists in a substantially y vertical plate 9 having four wheels 10 rotatably mounted in turn in the same plane with the plate 9.

, The wheels 10 are arranged to bear upon parallel horizontal side walls 11 of an elongated casing 12. This casing 12 is open at each end and iS secured .by means ofk bolts 13 to the front panell of the boiler.

The casing 12 is formed with its side walls 11 bent toward one another at 14 to form front wall portions 15 of the casing which lie in thel same plane and are parallel to the rear wall of the casing. Four wheels 18 are rotatably mounted upon the plate 8 and are arranged to bear and ride upon the inner surface of the wall portions 15. Thus the

wheels

10 and 18 serve as a guide and movable support by means of which the carriage 8 may move with a reciprocating movement in the casing 12.

A return lead screw 2O is rotatably mounted in the casing 12 by means of bearing members 21. This lead screw 20 has a portion 22 which is adapted for engagement with a gear, pulley, or the like for connection with a source of power, such as an elec tric motor, steam engine, or other driving means.

Referring now to Figure 3 it will be noted that the return lead screw 20 has both left and right hand threads cut therein. Thus a member such as the bifurcated engaging member 22 when placed in engagement with the'threads of the screw 20 will move to and fro along the screw as it is rotated.

The member 22 is secured to the plate 9, thereby causing a longitudinal, reciprocating movement ofthe plate when the screw is rotated.

In order to maintain the engaging member 22 in proper engagement with the threads of the screw 2O I provide a guide roller 24 which is rotatably mounted upon rearwardly extending plates 25 carried by the plate 9 and which engage with that portion of the screw 20 diametrically opposite to the engaging member 22.

From the foregoing description of the various parts of the device, the operation thereof may be readily understood. Only one means of motive power is connected to the screw 2O at the portion 22 so that the screw 20 is constantly driven.

As soon as the engaging member 22 is in engagement with the return threads of the screw, the entire carriage 8 to which the engaging member is secured will move from one end of the screw 2() to the other upon its threaded portion.

The engaging member 22 will be held in proper engagement with the screw 2O by means of the guide roller 2st so that the engaging member may not abuse or mutilate the threads.

Friction between the carriage and the casing 11 is reduced to a minimum by virtue of the

wheels

10 and 18 which permit the carriage to move easily from one end of the screw threads to the other within the casing 12. i

The bifurcated member 3 which is in engagement with the spout 2 will cause the spout to move through an oscillatory path and thus deliver coal or the like which is passed therethrough from the upper end to any suitable feed trough, grate, or the like lsuch as found in boilers and furnaces of ordinary construction. It should also be noted from Figure 1 that the

wheels

10 and 18 and the guide rollers 24Lvbear against the inner surfaces of the casing 12, thus preventing accidental movement while guiding the spout 2 in its travel. The casing 12 also shields the working parts from foreign matter. it is' obvious that a .large guiding surface must be provided for the spout` 2 for taking up side thrust ofthe spout, due to strains from the falling coal. rEhe inner surfaces of the casing 12 accomplish this purpose. claim: Y 1. .The combination with a niiovable coal spout, of a' carriage loosely connected to said spout and having wheels, means for reciprocating said carriage, an elongated casing enclosing said carriage and said reciprocating means, said casing having'walls whose inner surfaces are adapted to guide said wheels.

2. The combination with a movable coal spout, of a carriage loosely connected to said spout vand having wheels for supporting the weight of the carriage, auxiliary 'guide wheels disposed at right angles thereto,V

means for reciprocating said carriage, and a casing enclosing said carriage and said reciprocating means, said yfirst named wheels being arranged to bear on said casing for supporting the greater weight of the carriage, and said guide wheels being arranged to engage the inner walls of the casing for guiding the carriage in its movement.

GEORGE M. WUTZLER.