USRE7591E - Improvement in machines for charging gas-retorts - Google Patents

Description

T. F. ROWLAND.

MACHINE FOR CHARGING GAS nmonm. No. 7,591, Reissued April 3, 1877.

[maven 77'- D- shaped retort.

UNITED STATES .TH'OMAS F. ROWLAND, OF GREEN- PQTNT, BROOKLYN, NEW YORK.

Specification forming part of Letters Pa ent l lnwifilgiifidflated --Septen:her 24,1875! .reissueNor.7,59l,.dated April 3, 1877 application iiled December 18, 1876.

To all whom it may concern:

Be it known that l, THOMAS i EoWLAND, of Green Point, Brooklyn, Kings county, New York, have invented-a certain improvement relating to Machines for Charging Gaelic torts, of which the following is a specificatio'n:

The revolving scoops in common use, whether working by hand or by machinery, are illy adapted to charge the flat-bottomed retorts, commonly called D-retorts, in general use in this country. One oi the cylindrical retorts of Europe can be filled to a proper height by .the inversion of a semi-cylindrical. scoop ot a little less diameter; but several repetitions with scoops of sin-all diameter are required by properly charging a D-retcrt, and the time .inyolvedJs an im ortantelement or many reasons, not the least of which is the long exposure of the retort to the cooiing action of the atmosphere. I employ a scoop which is not reversible, and is of a shape to correspond approximately With the interior of It is permanently open at the top. and receives the charge through such opening when withdrawn. It is emptied by the removal of the bottom, in con junction with peculiar means for retaining the coal in the retort until the withdrawal of the scoop, and for li'neratingit as the scoop is withdrawn.

Additional details of the invention will appear in the following full description of what I consider the best means of carrying out the invention.

The accompanying drawing forms a part of this specification.

Figure l is a vertical section of the line S S in Fin. 2. showing the sco p ready to have its bottoin withdrawn to deposit the coal in a retort not represented. Fig. 2. is a cross section on the line T T in Fig. l, with an elevation of the carriage, Will be understood.

similar letters oi reference indicate like parts in both figures.

A is a substantial carriage mounted on wheels a a, and B is a scoop fixed rigidly to the carriage, and of proper length and size to enter and nearly iill the entire in terior of a D-retort. It will be understood that the same carriage A may have six, or

any other number, of the scoops B prop erly arranged to correspond with the re torts which are to be charged, and that the carriage may be provided with lIiBOllilI-llslll for sliding the bottoms of all the scoops'si mnitaueously. l have represented but one,- and a description ofthat, with its adjuncts, will suiiice for any number. D is a corru gated cast-iron bottom, sliding in grooves provided in the interior of each side or the scoop B. The corrugations extend longitudinally oi the bottom; and, excepting'these "y Zines and a slight strengthening rib, d, along the middle, the'entireupper surface is made smooth. The lower side is fornicd with a stout rack, d, which receives the teeth of a corresponding gear-wheel, E. mounted on a shaft :1 supported in asinqsin theme riage e, and provided with suitable means for turning it with proper force when required:

A. fixed transverse partition, G, is construct ed across the scoop B, with its lowen'edgewaved to match pretty closely to thecor rugatcdbottoin D. Other partitions, G Genre mounted at intervals across the scoop; but. their lower edges are much higher. These partitions brace and stiffen the scoop B; and also, in conjunction with the flap-valves H E perform another very important function. The flap-valves are inountedon hinges it near the base of the respective fixed partitions Gr G and. when'the coal is introduced fromthe chargihgdiopper, (not represented,) the flapvalves hang down in the position represented in strong lines in Fig. l. These partitions and valves being thickly introduced keep the coal practically in separate compartments, and any required equality of the charge may beobtained by weighing rrotherwise nicely.

raduating, the uantities supplied to each compartment.

To charge a retort, the cover or door of the retort having been removed, the oitirihg, with its scoop B properly filled with stllteble coal, is run forward on a track, and the 5000]) is thereby thrust properly into the retort. Then the gear-wheel E being operated, the bottom. I) is run out, and the coal in the several conipartments is allowed to drop and rest in thebottorn of the retort. Meanwhile, until each coinpartnieut has been thus emptied, the valves LEI PATENT OFF on-j Hpe'rform their'nportantfunetion ofpreventing th ejcoa l from beingdrawn out with the bottom. Thdesce'ntof the coal after the removal of the bottom brings the upper line of the coal about.

" carriage on the track having been completed,

the part D having been restored to proper re: lationswith the scoop B, and the valves H H having again dropped by gravity, another charge of coal is introduced from above, and the apparatus is again ready for service.

' It will be readily understood that the partition G, which descends quite to the bottom,

should come just within the front of the retort. It will also be understood that the farth'er endfof the scoop may have no valve, but the partition at that point should not come so low in any of these as to shake out or seriously disturb the coal. L

Any irregularities in the surface of the coal as it is deposited'in. the retort may be evened or smoothed down by the lower edges of the partitions as the scoop is withdrawn.

-'I believe that the corrugating of tom,"and the corresponding form or the lower edges-of the partition G, and of the valves H H, are important in practice, to give suitieient strength with reasonable weight but some of the advantages of my invention may be realized with other forms for these parts.

I claim as my invention-- 1. The scoop B, with suitable supportingmeans A, and having a removable bottom, I), and valves H H", combined and arranged for joint operation, substantially as herein specified.

the 7 hot- 2, The removable bot-total), corrugated iongitudinaily, in combination with the 'corre spondingly-iormed valves E E and curved sides B, adapted to match in U-retortfand reciprocate separately therein, substantially as and for the purposes herein set forth,

3. The combination, with a etching-machine in which the scoop enters the full length of the retort, and is col-extensive therewith, of one'or more partitions" or 'stopsthe said ap' paratus so constructed being effective in preventing the withdrawai of the coal npon'the.

withdrawal oi' its support, substantially as described.

4. A coai carrier or scoop, B, combined and arranged with one one or more swinging plates or partitions, H H which apparatusso coustrncted is e'ifectivein preventing-the withdrawal of the coal upon the withdrawal of its support, while the scoop or carrier is easily Withdrawn Without withdrawing the coal, substantially as described.

5. The combination of a scoop or coal car rier with one orinore fixed diaphragins, which apparatus is eliccti've in leveling the snri'ace of the coal by its withdrawal from the retort, substantially as described.

6, A Qshaped coal carrier orscoop having approximately the same iengt-h and shape as the D-sh-aped retort which it is intended to enter and till, and adapted to carry and discharge the i'uli amount of coal which the retort is capable of receiving, substantially as described.

7" The removable corrugated bottom 1), as combined and connected with a coal carrier or scoop, B, substantialiy as described,

THUS, F. aoWLiiNo.

Wituesses:

E. N. Drcrrsusou, ix, WARREN E, Hint,

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