US595039A - bronder - Google Patents

Description

(No Model.) 3 SheetsSheet 1.

G. A. BRONDER.

MACHINERY FOR DISOHARGING GAS RETORTS.

No. 595,039. Patented De0.'7,1897.

3 SheetsSheet 2.

(No Model.)

G. A. BRONDER. MACHINERY FOR DISOHARGING GAS RETORTS.

Patented De0 7, 1897.

(No Model.) 3 Sheets-Sheet 3.

G. A. BRONDER. MACHINERY FOR DISGHARGING GAS RETORTS.

No. 695,039. Patented Dec. 7, 1897.

19 Wineazrewx UNi'rnD STATES GASTON A. BRONDER,

PATENT OFFICE.

OF NEYV YORK, N. Y.

MACHINERY FOR DISCHARGING GAS-RETQRTS.

SPECIFICATION forming part of Letters Patent No. 595,039, dated December 7, 1897.

Application filed May 20, 1897. Serial No. 637,321. (No model.)

To all whom it may concern:

Be it known that I, GASTON A. BRONDER, of the city and county of New York, in the State of New York, have invented a new and useful Improvement in Machinery for Discharging Gas-Retorts, of which the following is a specification.

In machines heretofore used and now in use for discharging gas-retortssuch, for example, as that described in my Letters Patent No. 447,022--the rakes are in part supported by a traveling carrier which runs forward and backward for the purpose of introducing the rakes into and withdrawing them from the retorts and in part by a lifting-bar arranged at a fixed distance from the front of the retorts. lVhen the traveling carrier is in its most backward position, only about half the weight of the rake is supported on the liftingbar; but as the carrier runs forward with the rakes to project them within the retort a greater portion of the weight of the rakes is brought upon the lifting-bar. A weighted lever has been and is commonly applied to the lifting-bar for the purpose of counterbalancing the said bar and that portion of the weight of the rakes which comes upon it; but as such portion of the weight of the rakes varies in their movement back and forth, it is desirable that some compensation shall be provided for its variation.

One object of the present invention is to provide a simple means by which this compensation can be effected; and to this end my invention consists in making the fulcrum of the said lever adjustable automatically according to the movement of the carrier and rakes.

Another object of the invention is to better control the backward and forward movements of the rake-carrier and rakes; and to this end my invention consists in an improvement in the hydraulic governor by which the movement of the rake-bar is checked toward the end of its travel in either direction.

Figure 1 of the accompanying drawings represents a side elevation of a retort-discharg-' ing machine embodying my invention and a vertical section of one retort of each of three tiers. Fig. 2 represents a plan view of the machine. Fig. 3 represents a transverse vertical section in the line 8 3 of Fig. 1, omitting rake-carrier and rakes. Fig. 4 represents a side view of the rake-lifting bar and its counterbalance and of the means for automatically adjusting the fulcrum of the counterbalance-lever. Fig. 5 represents a plan view of the hydraulic governor; Fig. 6, a longitudinal vertical section of the said governor; Fig. 7, a transverse vertical section in the line 7 7 of Fig. 6; Fig. 8, atransverse vertical section in the line 8 S of Fig. 6. Figs. 9 and 10 are side views of the upper part of the rake-lifting-bar, the counterbalance, and the means for automatically adjusting the fulcrum of the counterbalance-lever, showing the fulcrum in different positions. Fig. 11 is a back view of the upper parts of the fulcrum-act justing devices shown in Figs. 9 and 10.

Similar letters of reference designate corresponding parts in all the figures.

A A A a a a a designate the main frame of the machine, A being the base or platform, having erected upon it two uprights A A which are connected by horizontal braces a a a ct,the whole constituting a carriage mounted .on wheels B, which runon tracks parallel with the front of the bench or stack of retorts O O, which are represented as in three tiers.

D is the rake-carrier, furnished with rollers b, which run between horizontal guides constituted by two of the braces to of the main frame, the said carrier being moved back and forth to move the rakes forward into the retort and to withdraw them therefrom by its connection with an endless chain c, which is wound upon a rotary drum e and runs on two pulleys d at each end of the main frame. The pulleys d d at the rear end of the frame are shown in Fig. 1, but those at the front end are hidden by other parts of the machinery, and I have not thought it necessary to make any special representation of them because the same system of chains, drum, and pulleys are common in gas-retort-discharging machines for example, in the machine illustrated in the expired patent of A. D. Ross,No. 222,565. The shaft 6 of the drum e, running in fixed bearings on the main frame, is furnished with a pinion e gearing with a toothed rack 6 connected with the cross-head e on the piston-rod 6 At one end of this rod is a piston working in a steam-cylinder f, to and from opposite ends of which the induction and eduction of The carrier D and the rear ends of the bars Y 71. of the rakes i are provided with suitable connections which provide for the necessary upward and downward movement of the rakeheads and which provide for'the detachment of such of the rakes as it may not be desired to operate and which are to be connected with the rear upright A of the main frame.

E is the lifting-bar for giving the rakes the upward-and-downward movement. This bar works vertically in guides jj on the front upright A of the main frame, audit is furnished with rollers 7:, between which the rakes run back and forth and by which they are in part supported. The said bar is suspended from the shorter arm of a lever F, the longer arm of which carries acounterbalanceG for counter-balancing-the weight of the lifting-bar and the portion of the weight of the rakes which said bar sustains. The upward and downward movement of the lifting-bar and the rakes is produced by means of two T-levers Z Z, pivoted to the main frame,the upper arm of each of the said levers being connected with the lower arm of the other one by-means of :two rods m m, the front-arm of theforward leverl being connected by a link n with the lifting-bar and the rear arm of the rearward leverl being prolonged-in the form of a handle o, by which an attendant on the machine raises and lowers the lifting-bar.

The machine, so far as I have above described it, resembles retort-discharging machines heretofore used and now in use, except that the fulcrum of its counterbalancelever F, instead of being fixed, is automatically adjustable to compensate in a greater or less .degree for the variation in the weightof the rakes that is sustained .by the lifting-bar E, and for this purpose the said fulcr-um'consists of a pin 19, which is supported in the upper arm of a lever H, which works on a fulcrum .10, having a fixed position on the top of the front upright A of the main frame orcarriage. The lower and longer arm of this lever H is connected, as shown in Figs. 1, 2, and 4, by a rod r with the cross-head 6 so that as the rake-carrier D and rakes are moved for- Ward and a greater portion of the weight of the rakes is thrown upon the lifting-bar E-the fulcrum of the counterbalancedever is moved forward nearer to the lifting-barandfarther from the counterbalance G and the-leverage of the counterbalance is increased,-and as the rake-carrier and rakes are moved backward andthe weight of the lifting-bar is diminished the fulcrum-pinp is moved backward,with the effect of diminishing the leverage of the counterbalance. This will be understood by reference to Figs. 9 and 10, which are on a larger scale than Figs. 1, 2, 3, and 4, Fig. 9 showing the position of the lever H and fulcrum-pin p when the rakes are in their most forward position and Fig. 10 showing the position of the said lever and fulcrum-pin when the rakes are in their most backward position, the rakes in both cases being supposed to be lifted.

To provide for the above-described shifting of the fulcrum-pin of the counterbalancelever, the said lever is not pivoted directly to the said pin, but is suspended therefrom by means of two linkss s, the upper ends of which are pivoted to the said pin and the lower ends of which are pivoted to thesaidlever by-a pin 19*. To provide for the suspension of the counterbalance-lever, the upper part of the lever H is made, as shown in Fig. 11, with a yoke 11*, through which the counterbalance-lever F passes and within which the linkss .9 work one on each side of the latter lever. To permit the counterbalance-lever and the links '8 s to work through the yoke 11*, the fulcrum p i of the lever 11 is made of two pins arranged in line with each other and secured one to each side of the yoke and supported in two bearing-blocks t t, affixed to the upright A In order to provide for receiving the severe lateral thrust .to which the lifting-bar E is subjected in the shifting of the fulcrum-of the counterbalance-lever by reason of the angularity of the fulcrum-links s, the upper guide'provided inthe upright or front portion A of the main frame of the machine is composed .of two rollersjj', pivoted in said uprightor-portion of said frame one in front and the otherbehind said bar. But for these rollers the lateral thrust above mentioned would beso severe that it would be difficult, if not impossible, for one man to raise the liftingbar and rakes.

Referring now to Figs. 5, 6, 7, and 8, which are on a larger scale than Figs. 1, 2, 3, and 4, it will be understood that the cylinder 9 .of the hydraulic governor is counterbored at eachend, as indicated at 6 larger than the piston (2 which works water-tight-within the restof the cylinder, and that there are insaid cylinder, near each end thereof, three ports u 11/14 which, opening into the passage 1),, running lengthwise of the cylinder outside thereof, form communication between the two portions of the cylinder on opposite sides of the piston. The ports a are in the counterbore 6 and the vports u n are in the bore proper, to which the piston fits, but are at different distances from the heads of the cylinder. The rakescan move forward or backward no faster than is permitted by the displacement of the water from one end of the cylinder to the other through the said passage and ports. As the piston approaches'the ends of the cylinder it covers and closes the ports a and a one after'the other, and so gradually diminishes the openings through which the water is displaced, consequently diminishing the speed at which the piston and the rake move as they approach the ends of their stroke in either direction, leaving the ports 26 in the counterbores always open, and thereby obviating any shock to the machine that might otherwise occur by the very sudden stoppage of the rake-carrier and rakes. It may, however, be here mentioned that the ports at different distances from the ends of the cylinder might all be arranged in the bore proper, so that they would be all closed in rotation by the piston.

The high portion 12 of the passage u between the ports a a a having no vent, acts as an air-chamber. The cubic capacity of the said higher portion or chamber is made somewhat greater than the cubic contents of that portion of the piston-rod which is involved in the stroke of the said rod, so that while it contains some air it may also receive a quantity equal in volume to the displacement of the piston-rod of the water, which while the piston-rod is passing into the one end of the cylinder is forced out from the other end, where there is no rod, there being no room for this quantity of water in the portion of the cylinder occupied by the rod. Without this provision of this chamber 0 or its equivalent the movement of the piston in one direction-viz. that in which the rod enters the cylindercould not take place.

IVhen, as is sometimes the case, only one tier of retorts is in use and the use of only one rake necessary, it, in some cases, may not be necessary to shift the fulcrum of the counterbalance-lever with the movement of the rake-carrier and rakes, and in such cases the rod 7' may be disconnected by removing either the pin which connects it with the lower end of the lever H or that which connects it with the cross-head 6 and the lower end of the said lever may then be made fast to any suitable part of the main frame or carriage, or for working one rake only the counterweight G can be adjusted to suit by moving it closer to the fulcrum.

K is a steam-engine supplied with steam from the boiler J and geared with one of the axles of the wheelsB for the purpose of moving the entire machine along the front of the retort bench or stack to present the rakes opposite the several retorts in succession. This, however, is no part of the present invention.

WVhat I claim as my invention is- 1. In a machine for discharging gas-retorts, the combination of a rake-lifting bar and a counterbalance-lever from which said bar is suspended and the fulcrum of which is movable with the rake, substantially as herein described.

2. In a machine for discharging gas-retorts, the combination of a rake, a rake-carrier, a rake-lifting bar, a counterbalance-lever from which said bar is suspended and the fulcrum of which is movable, mechanism for moving the said carrier toward and from the retorts, mechanism for moving the said fulcrum, and a connection between the carrier-moving mechanism and fulcrum-moving mechanism whereby the said two mechanisms operate together for the shifting of the said fulcrum with the backward and forward movement of the rake-carrier, substantially as herein described.

3. In a machine for discharging gas-retorts, the combination of a carriage, two or more rakes, a carrier for said rakes and means for moving said carrier backward and forward on said carriage, a lifting-bar on said carriage common to the several rakes, a counterbalance-lever from which said lifting-bar is suspended and the fulcrum of which is movable, mechanism for moving the said fulcrum, means for connecting said rakes with the said carrier and carriage whereby one or more of them may be moved with the carrier while the other or others are held stationaryon the carriage and a detachable connection between the fulcrum-moving mechanism and the carrier-moving mechanism, all substantially as and for the purpose herein described.

4. The combination with the rake-lifting bar, the main frame or carriage and the counterbalance-lever connected at one end with said bar, of a lever as H having its fulcrum on the main frame or carriage and carrying the fulcrum p of the counterbalance-lever and the swinging links 8 s by which the latter lever is connected with its fulcrum, substantially as herein described.

5. The combination of the rake-lifting bar, the main frame or carriage, the counterbalance-lever connected at one end with said bar and having a movable fulcrum supported on said frame or carriage, and a guide for said bar consisting of rollers pivoted in the frame or carriage in front of and behind the said bar to receive the lateral thrust of said bar, substantially as herein described.

6. The combination with the rake-carrier and the mechanism for moving the same, of a piston connected with said mechanism and a hydraulic cylinder in which said piston works and between the ends of which on opposite sides of the piston there is a passage with several ports at each end, the said cylinder being counterbored at each end, the several ports being at different distances from the cylinder-heads, the ports nearest the cylinder-heads being within the counterbore and the other ports being within the range of the piston to be successively closed thereby, substantially as herein described.

GASTON A. BRONDER.

WVitnesses:

FREDK. HAYNES, EDWARD Vrnsna.

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