US964728A - Apparatus for extracting turpentine and rosin from resinous woods. - Google Patents

Description

H.T.YARYAN. APPARATUS FOR EXTBAGTING TURPENTINE AND BOSIN PROM BESINOUS WGODS.

V 7 APPLICATION FILED OCT. 21, 1909. 964,728.

Patented July 19, 1919 WITNESSES; 61%

' HOMER T. YARYAN, OF- 'IC'LEDU, OHIO.

AEPABATUS non rwrnnc'rino runranrxna AND nosnr mom nssmous areal-s.

Specification or Letters Yatent.

Patented J 1113' 2.3,

Application filed October 21. 1909. 5011a! 30. 523,781.

To all whom it may concert:

Be it known that I, Hours '1. YARYA'N, a citizen of the United States, residing at Toledo, in the county of Lucas and State of Ohio, have invented certain new and useful Improvements in A paratus for Extracting Turpentine and ilosin from Resinous Woods; and 1' do declare the following to be a full, clear, and exactdescription of the invention, such as will enable others skilled in the art to which it appertains to inake and use the same, reference being had to the accompanying drawings, and to the figures of reference marked thereon, which form a part of this specification.

In the process of extracting turpentine from resinous Woods by distillation in a current of steam and the subsequent treatment, in the same vessel, of the wood with a solvent,-such, for instance, as naphtha,to extract the rosin, there is constant danger during the steaming operation of contami nating the turpentine distillate with the solvent, due to leaking valves or to the carelessness of workmen in not tightly closing the valves. This danger is greatly increased when a number of extractors are in operation simultaneously, all of the extractors being connected with a common supply of solvent, some of the extractors being under treatment for the recovery of the turpentine while others are being treated with the solvent for the recovery of the rosin. As it is almost impossible to separate the solvent from the turpentine when thecontamination has once taken place, the importance of some means for rendering impossible the accident referred to is apparent. My invention relates to and its objectis to provide means for overcoming the objections and diflicultiesahove indicated, and, more particularly to provide ineuns fan-preventing the flow of a solvent in which extractor durin the process of distinction of resinous woo s for the recovery of turp cntine.

I attain these objects by means of the devices, and arrangement of parts hereinafter described, and shown and illustrated in the single figure of the accompanying drawing which illustrates. in side-elevation, a simple form of my apparatus. a

In the drawings, '1 is an extractor designed to receive the comminuted wood to be treated, and provided with suitable doors for charging and discharging theextractor and rovided with any required moan tar supp ying the extrzlnn' with sze n and for heating 5 the contents of tho 1'i. as b? steam supply pipc 1", and, if required, means 611 for placing the interior of the extractor under a vacuum through discharge ipe 1 As these features of the device form ho part of the present inv emion, it will he uunec sary to here further describe the same, it l;-.- 1: mg understood that the extractor is adapted and arranged for the distillation of Wood for the recovery of turpentine and for the subsequent treatment of the vvood with a solventto extract the rosin.

2 is a reservoir for the solvent and 3:- is a pipe leading from such reservoir to the e"- tractor. In the pipe 3 are two hand v. 4

5 is a pipe connected with the tween the two hand-valves 44 and iv: to a vacuum pump 6, supplied with r through steam pipe 6. The pipe 5 i ably valved, as at 7, to permit the c at will, of the passage between the and the pump. During the operation of distillation f u turpentine, the valves H are closed, ihe valve 7 is opened, and by means of the pump,

a partial vacuum is maintained in the pipe as 5. Now, if through negligence, accident or defective valves, there is any leak which would ermit the flow of solvent from the reservoir 2 to the extractor, the solvent will be drawn to the pump instead of entering i the extractor. If the contents of the extractor are being treated under a partial vacuum, the vacuum created by the pum 6 should be superior to the vacuum in t e. extractor. The same result above described may be 0b- 3. tained by using the pump 6 as a force'pump for air or gas or any suitable fluid instead of as a vacuuinpump, as it will be understood that pressure of any suitable mcdium,

superior to the pressure in the pipe 3,- u

being applied through the pipe 5 between the valves 4-4, the flow of solvent into l extractor would be prevented. In practice. however, I prefer to connect the pipes 2-3 and 5 with means for producing a vacuum. as;

Having described my invention, what 1 claim and desire to secure by Letters Patent 1 1. In a device of the character described, an extractor for the treatment of resinous woods with a solvent, a solvent supply pipe leading to said extractor, two valves in said lli) pipe and means for producing in said pipepipe leading from the container to the extween said two valvesa pressure difierent tractor, two valves in said pipe, said ipe from the pressure within the extractor. -having an outlet between said two va ves,

2. Ina device of the character described, and means for, at will, opening or closing 15 '5 an extractor, a container for a solvent, 2. said aperture.

pipe leading from the container to the exj In testimony whereof I aflix my signature tractor, two valves in said pipe, :1 pump and in presence of two witnesses. connections between said 1pe-intermediztte HOMER T. YARYAN.

mid two valves-and sai pump. Witnesses: 10 3'. In a device of the character described, CLAYTON MURPHY, an extractor, a container for a solvent, 8. Leona Knamrrz.

Images