USRE3451E - Beissued may - Google Patents

Description

REISSUED MAY 18, 1869;

M. VOORHEES & G. W. N. GUSTIS; PROCESS AND APPARATUS FOR SEASONING AND IMPREGNATING WOOD WITH PRESERVATIVELMATERIAL.

2 .SHSBETW-BHEET l.

No. 3,451? REISSUED MAY 18, 1869. A M. 'voonnsss & GLW. N. cus'r'ls. rnoosss AND APPARATUS FOR SE-ASONING AND IMPREGNATING WOOD WITH PRESBRVATIVE MATERIAL.

name-sum 2.

. Z r 22 I Jn'v'enfr a UNITED STATES PATENT OFFICE.

MARTIN VOORHEES, or rnmenron, AND e. w. N. OUSTIS, or CAMDEN, n. J.

IMPROVED PROCESS AND APPARATlJS FOR SEASONING AND IMPREGNATING WUOll WITH PIiESERVA- TIVE MATERIAL.

specification forming part of LBLl-ur; r'arent No. 87,226, dated February 2; H869; Reissue No. 3.451. dated d May 18, 1859.

To all whom) it may concern Be it known that we, MARTIN Voonnnns, of P1:-inceton,-in the State of. New Jersey, and

GEORGE W. N. (means, of Camden, in the same State, have invented certain improvements in the application of the process of seasoning and drying wood, and of preserving wood,

.tion, is a description of our invention sufiieient to enable those skilled in the art. to prac- Eigiire 1 is a side elevation of one form of :apparatus embodying our inven'tion Fig. 2 is an end elevation of the same. vertical longitudinal section. Fig. 4tis a cross- -section taken through the fire-chamber. Fig. 5 is a cross-section taken through the chimney. Fig. 6 is a top view, and'Fig. 7 a ground plan. i

Similar letters of reference'indicate the same parts in allthe drawings.

A represents a chamber, which may be of any required size and of any suitable form, butwhich we prefer to make cylindrical. We supply it with doors at each end, if desirable,

1 so arranged as to be steam or air tight when closed, and we provide a thermometer, B, a vacuum-gage,0, a pressure-gage, D, a safetyvalve, E, a pipe, F, with cool: for the convenient passage of the residuum of oil or other material from the chamber when desired, and a pipe, G, with cock for the convenient passage of oil or other material into the chamber,

, provision being made for its rctentiol'rtherein, when the doors are open, by the elevation at each end thereof of a plate or flange, (repre- F sented by H H in Fig. 3.) This chamber we place over a furnace, I, and fine J, the latter serving to conduct. the hot air, gases, &c., from the furnace to the chimney, with which Fig. 6 ma.

I it connects at K, thus conveying them beneath the chamber for its whole length, the latter being supported by the walls L L, which-form the sides of the hot-air flue.

Before proceeding further with the description of the apparatus represented in the drawings,--we will call attention to the fact that, as

deemed desira ble, of covering the chamber with lagging or any usual covering to prevent condensation, we have a complete woodtreating chamber, new in design and arrange- .ventionwhieh' are new and important, viz: first, the vaporization of the substance or compound used in the treatmentin tlmsmne chamber thateontains the material being treated; and, second, the return of the-eondensed vapor not absorbed by-said material immediately back into the body of the sub stance from which evolved, and that with little loss of heat, to be revaporized' as often as desired.

the-manner of application of the process.

coal-tar, oil, or other substance to be used in such treatment, as re'1n'esented by O. The doors of the chamber being closed and the fire being kindled in the furnace, the vapors of the oil or other substance used will be evolved and fill the chamber, and may be raised to a temperature of, say, from 212 to 230 Fahrenheit, and be maintained thereat until the material under treatment, however large or'dense, becomes heated to that temperature to, its center, thus insuring the coagulation of the albumen and the vaporization and expulsion of the water or sap contained therein, and the impregperfected to thisextent, it is evident that by increasing the fire the temperature of the subfar as described, with the simple addition, it"

ment, and embodying two features of our in- \Ve 'will now proceed to-setforth the operation of our apparatus as far as described, and- The material to be treated is placed in the chamber, as represented in. 4, as also the nation thereof with the vapors being applied.

stance or compound used may be increased, thus more-thoroughly drying the wood, -&c., and evolving and applying carbolic acid, fixed oils, or whatever may beevolved under a high degree of heat; and under pressure which may g be generated these also may be rapidly and surely forced to the enterof the most bulky or dense material. As the on or other substance used is vaporizeddn the chamber con- I taining the material being treated, and the heat imparted to said substauce'to secure its vaporization is also utilized iu'maintaining the I temperature in the chamber, and as the con-'- deused material, howeverrapid the conde11sa.--

tion may be, flows back immediately into the substance from which evolved'yata tempera ture but slightly reduced, to be .revaporized by absorbing a few degrees of heat, it is'fevi-l dent that the volume of the vapor, its tem perature, and'the pressure in the chamber,

when pressure may be deemed tobe desirable,

- may be easily and economically maintain ed or ;regulat('3d.' v q In the application of processes in which va-I por is used only as a preparation for immer-, sion in liquid, we simply-provide for the how from the chamber-of the substances used in vaporization as soon as'it has accomplished its purpose, and the flow in 'thechainberof the. substance used in liquid form; or by the same arragement various substances may be appli d in succession, either in forin of liquid orv vapor. \Ve w ill now proceed to describe otherparts )f our apparatus as represented inthe drawlugs, which other .parts are newand impor-z taut, contributing to a more perfect treatment,

if possible, and bringing theproeess of treat-l ment. more completely under the control of the operator; 7 I

Instead of applying ordinary lagging orfelting tothe-surface of the treating=chaniber,. we

prefer to inclose it by'a casing, which may be conveniently made of brick, so. proportioned in size relatively to the chamber A as to ad= mit of the retention o1" passage 'of air around it as may be desired. This air-space, 'forthe purpose of securing a "stronger drafi when desired, we prefer-to connect with the chimney, as atM', (see Fig. 5,) the opening to the chinr ney being supplied with a damper so arranged that it may be conveniently opened or closed at pleasure. The casing is arranged with open-T ings communicating wit-l the airspace, which openings are provided with doors or' otherconvenient fixtures, asrepresented at N i'or .the ingress of cold air and the regulation of its flow. These openings may be of such num ber, location, and;arrangement as 'may be deemed to be best. When the outlets to this air-space are closed it gives the pro-'- teetion against condensation ofa. body of fixed air around the chamber, and when the doors communicatingwith the air outside and the damper in the passage connecting with the chimney are opened, it is evident that there will be a rapid current of cold air over the surface of the treating-chamber, thus promot ing rapid condensation when desired. Again, :we provide for conveying the condensed water or other substance from the chamber when desired The arrangement represented-in the i' drawings is. as follows, viz: 1? P represent conductors, which run the entire length of the chamber,'ineliningifrom'the ends to the cenv,ter, and connecting with pipes Q, leading to a close receiver, R." These pipes aresnpplied with cocks S to 'stop the flow of the condensed vapors from the chamber whenever or as-long as may be deemed desirable,they flowing over into the bodyoftheoil as soon as the conductors are full. These conductors may beinclined to either or bothends, and may be of any suitable form and connected with pipes at any suitable .point or. points, or may conremoval may' be easily attained-as follows, viz: The door or doors 'N being opened, and

rent of cold air around -=tliechamber, as set the vapors Within on the surface. As coudensed they'will .flow down the surface into the conductors, and,the cocks S being opened,

tion of the water and its'condcnsation andpasmay then be vaporized applied.

densation of the vaporsland for the removal 'from the chamber of the condeusedwatcr or during such condensation, and thus the moisture-will be more thoroughly removed from the wood, &c. 1

tion and the apparatus whichwe have invented for practicing the same, we claim- 1. For the purpose of treating wood textile with the vapors of oleaginous, antiseptic, or other substances or compounds, the vaporizabe placed, or in a section thereof, or in, a pro same.

2. The return of the-condensed vapors to the'body of the heated substance from which Having nowldescribed our mode of applica vey thecondensed vapors to any suitable rebe removed from thetreating chamber, such also the damper M, there will be a strong curv forth above, coolin'g it sufliciently to condense will pass to the receivers B. This evaporasage from the chamber maybe continued until'it is all removed,and the substance remaining or other substance that may be introduced- With the above appliances fora rapid con other substances vaporizing at a low tempera.

ture, it is: evident that a partial vacuum may i be secured in the chamber if the fire be checked fabrics, or othermaterial, in whole or in part,

tion ofsuch substances or compounds in the same chamber in which the wood, &c., may

jection forming substantially a part of-the evohr ed, to be revaporized as,0ften as may be the air may be confined therein 01' be caused deemed desirable. 7 t0 flow over the surface of the treating-cham- V 3. Such arrangement of apparatus that the her at will. 1

- condensedmaterial maybecausetlto fiowbaek 1 MARTIN VOORHEES.

into the body of the substance from which G. V. N. CUSTIS. evolved 01' t0 flow from the chamber at will. VVituesses:

4. The combination, with a wood-treating SINNICKSON CHEW,

1 chamber 0f a11 air-space around it, so' that I J AMES M. CASSADY.

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