US805174A - Apparatus for treating resinous wood. - Google Patents

Description

PATENTED NOV. 21, 1905.

v E. B. WEED. APPARATUS FOR TREATING RESINOUS WOOD.

APPLICATION FILED FEB. 15,1901- fnveniorr 62AM; 0 MW 06 at: @22 W.

by S- UNITED STATES PATENT OFFICE.

EDWARD B. WEED, OF CLEVELAND,

OHIO ,ASSIGNOR TO WEED DISTILL- ING AND MANUFACTURING COMPANY, OF NEW YORK, N. Y., A COR- PORATION OF NEW YORK.

APPARATUS FOR TREATING RESINOUS WOOD Specification of Letters Patent.

Patented Nov. 21, 1905.

Application filed February 15, 1901. Serial No- 47,418.

10 all whom it may concern:

Be it known that I, EDWARD B. WEED, a citizen of the United States, residing in Cleveland, in the county of Cuyahoga and State of Ohio, have invented certain new and useful Apparatus for Treating Resinous WVood, of which the following is a specification.

The object of this invention is to permit turpentine or similar desirable products to be extracted from resinous wood; and it consists in the new and novel features of construction and combination of parts hereinafter set forth and claimed.

In the drawings Figure 1 represents a side elevation, partly in section, of the apparatus. Fig. 2 is a detailed view representing a portion of the steam-pipes.

The wood to be treated is placedin a still a, provided on its side with a door or opening Z) and on its top with a condensing cap or worm c. A steam-pipe (Z is placed on or near the bottom of the still and is provided with a number of arms 6, having perforations f' formed therein. The wood is supported a suitable distance above the steam-pipes by means of a netting g, secured to the sides of the still. 'The bath 2' of resin or similar material is supplied to the still by means of a supply-pipej, providedwith a number of openings in, that is arranged around the interior of the still a suitable distance above the top of the wood. Said supply-pipe communicates or is formed integral with a worm or coil Z, which is located in a suitable furnace or fire-box m, so that it may be heated. The coil is connected, by means of a pipe at, provided with a valve 41/, With a pump 0 of any suitable construction adapted to handle liquid or semiliquid material. Preferably the pump is placed near a boiler p and communicates with the interior thereof by means of a pipe q, having a valve 1' therein between the boiler and a branch pipe 8, which communicates with the interior of the still. Said branch pipe 8 is also provided with a valve 2/, preferably placed near the pipe q. The supply-pipe n is also provided with a branch pipe at, having a valve to and communicating with the lower end of the pipe 8 or directly with the interior of the still. A pipe w, having a valve :12, communicates with the pipe n and also with the interior of the boiler. If desired, an overflowpipe 3 provided with a valve 2 to communicate with thestill at a point approximately at the height of the wood contained therein, may be arranged between the still and the boiler, so that the bath contained in the still will flow by gravity into the boiler when the valve 2 is open.

The boiler is first filled with a sufficient quantity of the resin or other material to be used in the bath, which is then heated so that it can be handled by the pump. The valves 00, t, and a are closed, and the bath is pumped through the coil and the supply-pipe j into the interior of the still until the resinous wood IL is entirely or partially immersed. The valve 'r is then closed and the valve tis opened, so that the pump being set in operation draws the material forming the bath from the bottom of the still through the pipe 8 and returns it to the still through the pipe mcoil Z, and perforated pipe 7'. The bath is thus forced, by means of the pump, through the coil, which is heated, so that the bath can be maintained at an equable temperature. As it issues from the perforations in the supply-pipe it is met by the ascending steam, which meanwhile has been admitted into the still through the piped on the bottom of the still. The ascending vapors are I collected by the cap on the top of the still and are readily condensed in the condensing-worm communicating therewith. When the resinous products are extracted from the wood, the valves n and u are closed and the valve a: is opened, so that the material forming the bath is returned, by means of pipes s and w, to the boiler. A corresponding cap and worm may be provided on the boiler, if desired, to re tain and condense any desirable products that may be distilled when the boiler.is heated.

The arrangement ofv the pipes is such that the bath can be transferred from the boiler to the still direct through the pipes g and a or through the circulating-coil, as desired, and may be returned to the boiler through the pipes s and w without reversing the pump. The constant circulation of the bath through the heated coil permits an equable temperature to be maintained, so that the effect upon the wood is uniform, as every piece is subjected to the same heat. The perforations in the supply-pipe provide means for spraying or reducing the bath to a finely-divided condition, thus facilitating the escape of the desired products.

tract therefrom oils, resins, &c., a still adapted to hold the wood, a boiler for containing and heating a bath, a hood and condensingcoil for the still, a hood and condensmg-coil for the boiler, and a pump to transfer the bath from the boiler to the still.

2. In an apparatus for treating wood to extract therefrom oils, resins, &c., the combination with a boiler, a still, and a heating-coil communicating with the boiler and the still, of a pump communicating with each of said parts, substantially as described.

3. In an apparatus for treating wood to ex tract therefrom oils, resins, &c., the combination with a still, a boiler for heating a bath, a heating-coil on the exterior of the still and connecting the boiler and the still, and a pump communicating with the still, coil and boiler, substantially as described.

4. In an apparatus for treating wood to ex tracttherefrom oils, resins, &c., astill, a boiler for containing and heating a bath, a pipe communicating with said still and boiler to supply the bath to the still, a pump in said pipe, and an outlet-pipe communicating with said still and connected with the supply-pipe at a point between the pump and the boiler to remove the bath from the still and return the same to the boiler.

5. In an apparatus for treating wood to extract therefrom oils, resins, &c., a boiler for heating a bath, a still to hold the wood, asupply-conduit from the boiler to the still, a pump in said supply-conduit, and a return-conduit from the still to the boiler which passes through the pump in the same direction as the supply-conduit, whereby the bath may be returned to the boiler without reversing the pump.

6. In an apparatus for treating wood to ex tract therefrom oils, resins, &c., a boiler for heating a bath, a still to hold the wood, a supply-conduit from the boiler to the still, a pump in said supply-conduit, a return-conduit from the still to the boiler which passes through the pump in the same direction as the supply-conduit, whereby the bath may be returned to the boiler without reversing the pump, and valves in said conduits to control the circulation of the bath.

7 In an apparatus for treating wood to extract therefrom oils, resins, &c., a boiler for heating a bath, a still to hold the wood, a supply-pipe from the boiler to the still, a pump in said supply-pipe, two return-pipes one of which connects the still to the supply-pipe at a point between the pump and the boiler and the other of which connects the boiler to the supply-pipe at a point between the pump and the still whereby the bath may be returned to the boiler without reversing the pump, and valves in said pipes to control the circulation of the bath.

8. In an apparatus for treating wood to extract therefrom pils, resins, &c., a boiler for heating a bath, astill to hold the wood, a supply-conduit from the boiler to the still, a pump in said supply-conduit, a heating-coil in said supply-conduit between the pump and the still, a pipe connecting the bottom of the still with the supply-conduit between the pump and the boiler, whereby the bath may be circulated through the heating-coil without passing through the boiler and valves in the supply-conduit and said pipe to control the circulation of the bath.

9. In an apparatus of the class described, a suitable retort for the reception of the material to be treated, a suitable furnace and tank for melting down the material used as a distilling and preserving fluid, means for transferring said fluid from said furnace to said retort, means for heating said fluid during said passage and means for returning said fluid fromsaid retort to said tank.

10. In an apparatus of the class described, a suitable retort for the reception of the material to be treated, a suitable furnace and tank for melting down the material used as a distilling and preserving fluid, a pipe-line connecting said tank and retort, a heater on said line and a pump for delivering said fluid from said tank to said retort and for maintaining a continuous circulation thereof through said heater and retort.

11. In an apparatus of the class described, a suitable retort for the reception of the material to be treated, a suitable furnace and tank for melting down the material used as a distilling and preserving fluid, a pipe-line connecting said tank and retort, a pump for delivering said fluid through said pipe-line to said retort, a valve between said pump and said tank, a heater on said pipe-line, and connections for maintaining a continuous circulation through said heater and said retort.

In testimony whereof I sign this application, in the presence of two Witnesses, this 26th day of January, 1901.

' EDWARD B. WEED.

Witnesses:

G. B. SIDDALL, L. S. LOMMASSON.

IIO

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