US594425A - Apparatus for extracting oil - Google Patents

Description

(No Model.) 2 Sheets-Sheet 1.

' E. PRINTZ.

APPARATUS FOR EXTRAGTING OIL.

No. 594,425. Patented-Nov. 30, 1897.

WITNESSES ATTORNEYS.

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(No Model.) 2 Sheets-Sheet 2.

. E. PRINTZ.

APPARATUS FOR EXTRAGTING OIL.

No. 594,425. Patented Nov. 30, 1897.

Q ZY. Y aada a MN ATTORNEYS! pipe 5, which leads to the pump 6, which in section.

NITED STATES- P TENT FFICE.

EMANUEL- PRINTZ', or PHILADELPHIA, PENNSYLVANIA.

APPARATUS FOR EXTRACTING OIL.

SPECIFICATION forming part of Letters Patent No. 594,425, dated November 30, 1897.

Application filed May 8, 1897. Serial No. $35,620, (No model.)

To ctZZ whom it may concern: Be it known that I, EMANUEL PRINTZ, a citizen of the United States, residing in the city and county of Philadelphia, State of Pennsylvania, have invented a new and useful Improvement in Apparatus for Extracting Oil and Grease from Leather, Wool, Yarn, &c., which improvement is fully set forth in the following specification and accompanying drawings.

My invention consists of an improved apparatus for extracting oil and grease from leather, wool, yarn, &c., the novel features of which will be hereinafter fully set forth.

Figure 1 represents a diagrammatic view, in side elevation, of an apparatus for extracting oil and grease from leather, Wool, yarn, &c., embodying myinvention. Fig. 2 represents a transverse section on linear: :20, Fig. 1. Fig. 3 represents a vertical sectional view through the tank in which the skins are sustained and treated duringthe process, certain other adjuncts of said tank being also shown Similar numerals of reference indicate corresponding parts in the figures.

Referring to the drawings, 1 designates a storage-tank for the reception of naphtha or a similar fluid. A

2 designates a leather-holdin g tank in which are contained the skins to be treated, said tank 2 being supported in the present instance upon s'aid'storage-tank, although such construction is not essential.

3 designates a receiving tank which is adapted to receive the contents of the tank 2, as willbe hereinafter explained.

Referringfirst to Fig. 1, a designates an inlet for the naphtha or similar fluid, which latter is initially introduced into the storagetank 1 and is withdrawn therefrom by the can be of any suitable construction and actuated in any desired manner. 7 designates the discharge-pipe from said pump, the latter having a downwardly-seating check-valve 8 therein and a cock 9, said pipe 7 discharging in the present instance into the upper portion of the tank 2.

10 designates a grating supported by any suitable means in the lower portionv of the tank 2 and preferably made in sections, as

will be understood from Fig. 2,whereby it can be readily introduced into position through the opening 10 which is controlled by the door 11.

The leather-holding tank 2 is provided with an upper door 12 of substantially the same construction as the door 11, and a description of the latter will therefore suffice for both.

13 designates ways in which the door 11 is held, the same bearing against a suitable gasket or packing 14, against which the door is held by means of the set-screws 15 or other suitable fastening devices, whereby the tank is tightly sealed during the operation of treating the leather, so that none of the naphtha contained therein can escape.

16 designates an upright shaft whose upper extremity revolves in a suitable bushing 17, which is held in position by the box 18, which latter is secured to the top of the tank 2 in any suitable manner, the lubricant for said shaft being supplied through the oil-cup 18 19 designates a cup located in the lower portion of the tank 2 and adapted to contain a socket 19 which has a bearing therein for the lower end of the shaft 16, it beingnoted that the base of said cup is slightly raised from the bottom of the tankand is provided with ports 17 which communicate with. the outlet-pipe of the tank 2, as will be hereinafter explained.

2O designates a bevel-gear which is held in engagement with the shaft 16 by means of the key 21 or other suitable devices, said gear being in mesh with and actuated by the bevelpinion 22, which latter is mounted on the shaft 23, which rotates in the stuffing-box 24, the

same being of any suitable construction, so

as to prevent the escape of naphtha from the tank 2.

' 21 designates an oil-cup by means of which the lubricant is supplied to the socket 19 designates a series of arms which project from the hubs25 which latter are mounted 2, in the present instance below the gear 20, and adapted to receive steam or other heating medium from any suitable or convenient source, the steam entering said coils by means of the inlets 31 32 and being discharged therefrom by means of the outlet-pipes 34, 35, and 36, respectively.

37 designates a funnel or flaring outlet-pipe located below the grating 10 and communicating with the pipe 38, which leads to the blower 39, which latter has the suction-pipe 40, extending therefrom to the steam-chest 41, in which is located the heating-coil 43, the same having the inlet and outlet 44 and 45, respectively, for the passage of steam, while the lower portion of said tank has the inletopening 42, communicating with the atmos phere.

46 designates a pipe leading from the base of the tank 2 and communicating with the interior thereof by the ports 17 (best seen in the lower portion of Fig. 3,) said pipe 46 conveying the fluids settling in the lower portion of the tank 2 to the lower portion of the receiving-tank 3, 47 designating the outlet of said pipe 46.

4S designates a series of heating-coils located in the lower portion of the tank 3, through which any suitable heating medium is conducted or forced in any desired manner.

49 designates an outlet-pipe leading from the tank 3 around to the pipe 50, which leads from the leather-holding tank 2, both of said pipes 48 and 50 discharging into the pipe 51, which leads to the coil 53, contained in the condenser-chamber 52, said coil discharging through the connection 54 into a second coil 55, located in the condensing-chamber 56, while said last mentioned coil discharges through the connection 57 to the branches 58 and 59, which are controlled by the valves and 61, respectively, said branch 58 leading into the storage-tank 1, while the branch 5.) discharges into the tank 62. i

64 designates a spigot or valve located in the lower portion of the tank 62, which latter is also provided with a safety-valve 63, as are also the tanks 1 and 3.

designates a cold-water-supply pipe leading into the upper portion of the condensingchamber 52, said cold water being afterward discharged through the outlet-pipe 66.

68 designates a cold-water-supply pipe leading into the upper portion of the condensingchamber 56, said cold water being afterward discharged through the outlet-pipe 69, the chambers 52 and 56 being provided with the spigots or cocks 67 and 70, respectively.

The operation is as follows: The attendant enters the leather-holding tank 2 through the door 11 and, standing on the grating 10, hangs the leather 27 011 the arms or racks 25. The doors are then closed and the pump 6 having been started the naphtha will be forced from the storage-tank 1 through the pipe 7 into the top of the leather-holding tank 2, the valves in the pipe 7 being open. Naphtha is forced into the tank 2 until it has arisen therein to such a height that the leather is entirely covered or submerged therein, after which the supply of naphtha is shut off, the desired amount of heat being introduced into the lower portion of the tank 2 by the heatingeoils therein. Rotation is now imparted to the shaft 23, thereby rotating the shaft 16 and the skins supported thereupon, the leather being carried around in the naphtha, whereby every portion thereof will be affected, so that the naphtha will wash out or extract all the oil or grease from said leather, it being understood that the height of the naphtha can be observed by any suitable gage, as 2 By rotating the skins in the naphtha instead of merely agitating the same therein a great saving of time in cleansing the same is offected,the grease and stain being more quickly removed therefrom. \Vhen the oil and grease have been extracted to the desired extent, the naphtha is withdrawn from the tank 2 by means of the pipe 46. The blower 39 is now started and hot air is forced through the pipe 38 into the lower portion of the leather-holding tank 2, so that the leather contained therein is thoroughly dried. The hot air ontering the tank 2 will convert the naphtha escaping from the leatherintoavapor, which discharges from said tank through the pipe 51 into the pipes 53 and 55 in the condensingchambers 52 and 56, the vapor being cooled therein by means of the cold water flowing through said chambers and condensing into a liquid, the latter being withdrawn through the pipe 57 and discharged by means of the pipe 58 or 59 into the storage-tank 1 or the tank 62, as may be desired, on proper manipulation of the valves 60 or 61. The vapor from the naphtha, which is removed from the leather 27 by the hot air discharged through the pipe 38 while said leather is being rotated, is distilled as it ascends to the pipe 51 andis forced through the same by said hot air, as is evident.

It will of course be understood that by the proper manipulation of the valves in the pipes 7 49 51 38, &c., the desired regulation of the fluids flowing therethrough can be had, it being of course understood that the pipes 65 66 68 69 44 45 and 31, 32, and 33 are provided with valves according to requirements.

In the processes now in use the skins are taken out of the bath and hung up to dry. There is always a large amount, say one-third, of benzin or naphtha which remains on or in the skin and must evaporate, and is thus lost in the outside drying. In the present case this is entirely overcome.

Having thus described my invention, what I claim as new, and desire to secure by Letters Patent, is-

1. In an apparatus for extracting oil and grease from leather, a closed tank, a rotatable frame within the same with arms thereon, a grating, a steam-coil in said tank below said grating, a naphtha-supply tank with a pipe leading into the said first-mentioned tank,

and a blower with pipe leading into said tank below said grating.

2. In an apparatus for extracting oil and grease from leather, a closed tank having a rotatable frame therein, with arms thereon, av grating in said tank below said frame, a steam-coil in said tank below said grating, a wheel connected with said frame, and a shaft passing through a stuffing-box in the side of said tank, and having a wheel meshing with said first-mentioned wheel,both of said wheels being within said tank.

3. In an' apparatus for extracting oil and grease from leather, a closed tank having an upright shaft rotatably mounted therein, arms projecting from said shaft adapted to support leather, a grating in the lower portion of said tank, means for conducting hot air into the latter below said grating, means for rotating said shaft, a heating-coil located in the lower portion of said tank, outlets located in the upper and lower portions of said tank, said latter outlet leading to a receivingtank, a connection from the latter to the outlet-pipe of the leather-holding tank, a common discharge-pipe leading to a condenser and means for storing the naphtha thus condensed.

4:. In an apparatus for extracting oil and grease from leather, a leather-receiving tank closed at top and provided with an outletpipe, a rotatable frame in said tank with a vertical shaft, a cup supported within said tank and provided with ports communicating with said outlet-pipe, and a socket in said cup forming a bearing for said shaft.

5. In an apparatus for extracting oil and grease from leather, a leather-holding tank, a cup located in the lower portion of the latter, said cup receiving a socket, an upright shaft having a bearing in said socket, a bevelgear connected to said shaft, a bevel-pinion meshing with said gear and rotating the same,

a grating supported above said bevel-gear, a hot-air pipe discharging into said leatherholding tank, intermediate said bevel-gear and grating, arms 011 said shaft adapted to support leather, a series of heating-coils in the lower portion of said tank below said gear, an outlet in the lower portion of said leatherholding tank, an outlet in the upper portion thereof and means for condensing the naphtha discharged through said leather-holding tank.

6. In an apparatus for extracting oil and grease from leather, a storage-tank for naphtha, a leather-holding tank, means for forcing naphtha into said latter tank, means for heating said tank, means for forcing hot air into the latter, an outlet leading from the top of said leather-holding tank to a coil, a condensing-chamber in which said coil is located, means for cond ucting a cooling medium to and from said chamber, an outlet-pipe leading from the latter and having a plurality of valved branches, one of said branches leading to said storage-tank, and the other to any desired point.

'7. In an apparatus for extracting oil and grease from leather, a leather-receiving tank having a closed top and provided with a rotatable frame therein having arms thereon,

a naphtha-supply tank with pump and pipe WVitnesses:

E. H. FAIRBANKS, WM. 0. WIEnERsHEu/r.

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