US101019A - Improved apparatus for cooling and saving charcoal - Google Patents

Description

NAPETERS, PHOTD-LITHOGRAPMER. WASP NARETERS. PMOTO-LITHOGRAPMER. WASHINGTON, D CA aient @tithe GUSTAVUS JASPER, OF OHARLESTOWN, MASSACHUSETTS.

Leiters Paten Noylcipio, dated March 22, 1870.

IMPROVED APPARATUS FOR COOLING AND SAVING- CHARCOAL.

The Schedule referred to in these Letters Patent and making part of the same.

Know all men by these presents.-

That I, GUs'rAvUs A. J AsPnR, an alien, now residing-in Charlestown, in the State of Massachusetts, have invented certain new and` useful Improvements in Apparatus for Cooling and Saving Charcoal, of which the followingl is a full and correct description, relfl'erence being had to the accompanying drawings, in w ich- Figure l is a side elevation of the apparatus.

Figure 2 is an end view.

Figure 3 is a view from the opposite end.

Figure 4 is a vertical section of the cylinder, showing the internal shelves.

These improvements relate to that description of apparatus in which the charcoal is cooled by forcing a current of air through it vwhile agitated by the revolution of a cylinder through which it is passing, or while otherwise in motion through a cooling-chamber; and consists in`devices for rendering the current of air colder for withdrawing heat from the cylinder or chamber, and for collecting and saving the charcoal-dust.

The invention consists also in various details of construction, hereinafter particularly set forth.

I proeed to describe the apparatus, including the improvements, as put into successful operation by me.

A is a revolving cylinder made of boiler-iron, twenty feet'in length and four feet in diameter, mounted, as shown in the drawings, upon friction-rollers C, so that one end is lower than the other, and furnished with internal shelves S, about two inches deep, as shown.

The heads of the cylinders D D do not revolve. They are supported by iron bands, which are secured to the top ofthe room, but which are not represented in the drawings.

Motion is given to the cylinder by a chainrnnning in the grooved ring O, rigidly attached to the cylinder and over a pulley on the mainl shaft X.

B is an ice-chest, open .at the top'- and connected with the cylinder through the lower fixed head, D, by the pipe or air-passage T.

E is a due leading from the upper head of the cyll inder, in which, at F, there is a fan to create a strong draught of air through the ice-chest and cylinder.

G is a tunnel, through which the hot coal is introduced into tbe cylinder.'

The hot coal is thrown from the wagons upon the platform I, whence it is hoisted to the tunnel by the endless chain of buckets, H.

The revolution of the cylinder and the shelves causes the charcoal to pass slowly from the upper end of the cylinder to the other, whence it is discharged through the tunnel N into a proper receptacle, M. During its passage through the cylinder the charcoal is cooled by the action of the air rst-drawn through the ice-chest to make it cold, and then throughv the cylinder.

K is a water-pipe communicating with a cistern.

Along the bottom of theV pipe, over the cylinder, there are small holes, h h h, through which streams of water are constant-ly discharged upon the cylinder, to draw from the cylinder the heat imparted to it by the hot charcoal within.

The water is caughtin a trough, V, placed under the cylinder, as shown. The trough is supported by the frames holding the friction-rollers. It has au outlet v.

bove the fan for about twenty-five feet the fine has a nearly horizontal direction, inclining downward slightly, as shown.

Opening into this port-ion of the due are two small pipes, one a water-pipe, P, and the other a steampipe, Q. The' steam-pipe has an elbow within the line, as shown, and discharges a jet'of steam to meet the current of air produced by the fan. The steam and the current of air meeting, the dust contained in the latter is whirled or drops into the water, which has entered from the pipe P and is flowing along the bottom of the line. This stream of water passes out through a discharge-pipe, J, carrying with it all the charcoal-dust within a cistern W. The current of air finally overpowers the stea1`n,and both are discharged together into the open air throughthe mouth of the flue, which is above or beyond the steam-pipe, but both air and steam are free from dust. The water introduced into the due through the pipe I catches and carries olf dust independently of the steam; and a jet of steam introduced as above, without thewater, will collect upon the bottom of the due considerable dust, but in the latter case it is necessary to frequently clean out the due.

The cistern NV has a series of partitions, each partition being a little less in height than the preceding. The coarser charcoal-dust falls to the bottom of the first compartment the next coarser tothe bottom of the next, and so on till the water flowing out from the last leaves therein the nest of the dust.

The advantages derived from the use of the iccchest and the water-pipe K, as above described, cannot be overestimated. Before these improvements were added tothe apparatus the cylinder, after a short use, become so heated that so Inuch of the coolingpower of the air was spent in cooling the cylinder, iusteadl of the charcoal, as to render it necessary to stop operations; and it was often necessary to send the charcoal through the cylinder more than once, or to use more than one cooling apparatus. W'ith these improvements, however, the apparatus may be kept iu constant use.' Ooal entering the cylinder just 'short of a red heat has, upon coming out, only ninety degrees of heat. One cooler will do all the work of a sugarhouse of eighty tons per day capacity.

The fan in the flue takes'its motion from a pulley on the main shaft. Fans in flues or in pipes for creating adraught have heretofore had one ofthe journals supported within the flue. This journal was oiled the e, the journal became so heated that thefan ceased to operate. By making two elbows in the ue,

y asshown at F, I am able to place the supports of both journals without the ue, and avoid these diiculties.

I claim-'- 1. Cooling the current of `air which is to be drawn i through the cylinder or cooling-chamber, by first drawing it through an ice-chest, substantially as. described, for the purpose specified.

2. Cooling the-revolving cylinder by water, substanstantially as described, for the purpose specified.

3. Turning the stream of water from the pipe Pinto the ue to carry o dust, substantially as described.

4. Directing the jet of steam against Athe current of 'fhe above specification of my said invention signed and witnessed at Boston this 16th day of September,

GUSTAVUS A. JASPER.

Witnesses:

W. W. SWAN, H. FARNAM SMITH..

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