US903775A - Tank for treating glutinous material. - Google Patents

Description

A. 0. RICE. I TANK FOR TREATING GLUTINOUS MATERIAL.

APPLICATION FILED MAR.6, 19b7- Patented Nov. 10, 1908.

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TANK FOR TREATING GLUTINOUS MATERIAL.

APPLIUATION FILED MAR. 6, 1907.

Patented NO 10,1908.

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' APPLICATION FI ED MAR. e, 1901.

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UNITED STATES PATENT OFFICE.

ALVA 0. RICE, OF WORCESTER, MASSACHUSETTS, ASSIGNOR TO VELLUMOID PAPER COM- PANY, OF WORCESTER, MASSACHUSETTS, A CORPORATION OF WEST VIRGINIA.

TANK FOR TREATING GLUTINOU'S MATERIAL.

Specification of Letters Patent.

Patented Nov. 10, 1908.

Application filed March 6, 1907. Serial No. 360,831.

To all whom it may concern:

Be it known that I, ALVA C. RICE, a citizen of the United States of America, residing at IVorcester, in the county of Worcester and State of Massachusetts, have invented a new and useful Tank for Treating Glutinous Material, of which the following is a specification.

-My invention relates to improvements in tanks employed in the preparation of glutinous material, as ordinary glue, for certain purpose, in which a peculiarly constructed tank is provided, together with power-driven agitators of special construction, and auxiliary and subsidiary parts and members, all as hereinafter set forth.

The object of my invention is to provide a tank suitable for cooking and otherwise preparing to the best advantage the glue used in treating paper to strengthen the same and to render it water-proof, grease-proof and acidproof, or for other uses to which such tank This tank is particularly useful in the manufacture of what is known as Vellumoid paper or paper covered by States Letters Patent N 0. 804,808, issued to the Vellumoid Paper Company November 14th, 1905.

Other objects and advantages of my improvement will appear in the course of the following description.

I attain these objects by the means illustrateld in the accompanying drawings, in whic 'i Figure l is a view of two tanks and their a 'ipurtenances embodying my invention, the first of these tanks being shown in section and the second in-elevation; Fig. 2, a plan view of the outer jacket of one of the tanks; Fig. 3. an enlarged sectional view of a portion of the bottom of one of the tanks, showin g the construction of the same and the outlet from the interior with the valve therefor, said view being taken on lines 3-3 looking in the direction of the arrow in Fig. 2; Fig. 4, an enlarged detail of the agitator, the shaft being in section and the major portions of the arms being broken off, and, Fi 5, an en larged detail of the agitator sha bearing.

Similar figures refer to similar parts throughout the several views.

Although each tank is complete initself and each 13 the duplicate of the other, I have shown two because in practice I prefer to employ two and even three or more, according 1 through a stand pipe 8.

to the size of the plant or the size and number of the treating tanks for the paper which receive their supply from this source.

The driving mechanism for the agitators is adaptable to any number of tanks after the first by merely lengthening the shaft and duplicating the supports therefor and the gears thereon, as will be readily seen.

Each'tank consists of an outer jacket 1 and an inner acket 2 suitably constructed and so arranged one within the other as to provide a chamber 4 at the sides and bottom, such chamber being closed at the top. On the bottom or floor of the acket l are two series of inverted T-irons 5 with a series of perforated steam pipes 6 between. The aforesaid T-irons and pipes lie horizontally between of the jacket 2 rests on the upper T-irons.

At one end the steam .pipes 6 open into a perforated steam pipe 7 which extends part way around the chamber 4 and receives steam from a suitable The stand pipe 8 opensat the bottom into the pipe 7 and rises above the top of the chamber 4 where it is provided with a valve 9 to control the entrance of the steam. The ends of the pipe 7 and the'ends of the pipes 6 opposite the junction points with said pipe 7 are closed with capslO. The pipes 6 extend, crosswise of the T-irons. Water is admitted to the chamber 4, from any suitable source of pipell located at the top and provided with a valve 12; and water, different times during the preparation of the solution, is admitted to the interior of the tank, that is, to the jacket 2, from any suitable sources of supply, through a pipe 13 also located at the top and provided with a valve 14.

15 is a gage-glass to show the height of water in the jacket 4;.

In the floor of the jacket 1 is a cleanout opening 16 through which the waste Water in the chamber 4 can be removed, a pipe 17 and valve 1S-being provided below said floor for this purpose.

The outlet from the tank for the solution is through a valve-seat 19, riveted to the underside of the floor of the jacket 2, and a pipe 20 passing from said valve-seat downward through the floor of the jacket 1. The

lower end of the pipe 20 is usually connect-I source of supply both hot and cold at.

. the floors of the two jackets, and the bottom supply, through a ed by a pipe with a pump (not shown) through themedium of whlch the solution is transferred from the preparing tank to the treating tank for the-paper.

A valve 21 is provided for the valve-seat .19, which has a stem 22 extending upward through and abovq-a bracket 23 at the top of the tank. The' upper terminal of the valve-stem 22 is in thread engagement with the bracket 23, and such stem has a hand-wheel 24 mounted thereon to facilitate rotating the parts so as to open or close the valve 21 according to the direction of such rotation and whethersaid stem be screwed co mclinations of the 'tute a of onelside of the second or right-hand tank in Fig. 1 is broken out to show the connection between the valvestem and its bracket. Rising from the center of the floor of the jacket 2 of the tank i'sa pin or stud 26 which enters an opening in the base of a vertical agitator shaft 27 and prevents. such base from swaying. The upper terminal of the shaft 27 is ournaled in the manner explained below in a bearing 28 bolted to the top of a support or platform 29, after passing through the same. The platform 29 supports t e agitator mechanism on top of the tanks. The shaft 27 below theplatform 29 is square in cross-section and to the portion of the shaft is secured a number of hor1- zontal agitator paddles or arms 30, there being four such arms in the present case arranged in pairs standing at right-angles to each other.

Each arm 30 has at its inner end a collar section 31 adapted to fit onto two adjacent sides of the angular part of the shaft.27, so

that when two armshave their collar sec tions brought into proper position they can be bolted together, as shown, to form a complete collar about said shaft. The collars formed in the manner noted above firmly grip the shaft and hold the arms securely in place, owingito the fact that the adjacent edges of eac pair of collar sections do not come quite together thus enabling siich sec-' tions to be drawn into clqse and bind ng contact with the shaft by bolts 32 and nuts 33. Each arm 30 is oblique'cross-wise. The

two arms which constiopposite directions; In

air are in Fig. 1 t in the first or left-hand tank is broken away to disclose the stud 26.

stem is screwed also the shaft 35 and the chamber 4, such pipe e lower part of the shaft 27 shown solution is raised to The bearing 28 has an inner hub-50 for the larger cylindrical part of the vertical shaft 27 at the upper terminal, and surrounding this hub is an annular oil chamber 51. The smaller top portion of the shaft 27 is received into a gear 36 andthe two'members are rigidly fastened together by means of a bolt 52 tapped into such members along a line of junction parallel with their axis. The gear 36 has a depending sleeve'53 which. 1s adapted to enter the chamber 51 and fit around the hub 50. -R'adial holes 54 intlie sleeve 53 admit oil from the chamber 51 to l the bearing surfaces between said sleeve and hub' 50. This construction enables the shaft 27 to be rotatably suspended at the top and to revolve with very little friction, since the base of the sleeve 53 in the oil chamber '51 is the movable part that sustains the downward stress, there being no contact between 35 the upper end of the bearing 28 or its hub 50 and the gear 36, and guards against the possibility of any oil getting into the tank betow: 1 The shaft is really supported by the gear'and both are supported by'the floor of the oil chamber.

The agitator made up of theshaft 27 and the arms 30 is revolved directly through the medium of a bevel pinion 34 carriedby a horizontal shaft 35 and meshin with the bevel gear 36' on the upper end of said shaft 27. In line withthe shaft 35 is'a shaft 37 driven by 'a bevel pinion 38' carried by a A shaft 39 and meshing with a bevel gear 40 on said shaft 37, and. the shaft 35 is engaged with and disengaged from the shaft 37 by means of a clutch 41. A pulley'42 on the shaft 39' when revolved in the usual manner drives said shaft and the shaft 37 agitators when the clutch 41 is'actuated to engage the two lastmentioned shafts. The shafts 37 and 39 are situated at right-angles to each other and these with the shaft 35 are suitably journaled in bearings at the upper ends of standards 43 bolted to the top of the platform 29. As before intimated the driving mechanism may beduplicated for each additional agitator. 4

A short inclosing pipe 44 may be provided for the pipe 20 where it runs through the 44 extendin -between the base of the valve-seat 19 am a flange 45 riveted to-the underside of the floor of the jacket 1, as shownin Fig. 3. A packing ring j 46 is inserted between the flange 45 and the adjacent end of the pipe 44. The lower terminal of the pipe 44 is screwthreaded and a lock-nut 47 is screwed onto such terminal and forced against the bottom of the flange 45. I

In practice a solution of glue and water is made in the tank, the water being run in through the'pipe 13 and valve 14, and such the proper temperature 5 by live steam injected into the "same throughthe pipe 8, valve 9 and perforated pipes 6 and 7. The solution is not maintained at a high temperature throu hout the entire period of the treatment, int is allowed to 10 cool several times and at such times the steam must be shut off from In the processof preparing the solution it is agitated to thoroughly mix and commingle the ingredients thereof by means of the arms 30which are revolved in the manner hereinbefore fully described. )After being fully prepared the valve 21 may be opened and C the solution pumped out of the tank through the pipe in whatever quantities are re- 20 quired; meanwhile the preparation ofa similar solution can be going on in the other tank. The water in the chamber 4 can be drawn off through the pipe 17 and valve 18 at the bottom. The interior walls and floor of the jacket 2 and the walls and floor of the chamber 4 can be flushed and cleansed whenever desired by turning hot water into said jacket and either steam or water and steam into said chamber and permitting the same to escape through the valve seat19 and pipe 20 from the jacket and through the pipe 17 and valve 18 from'the chamber. It will be clearly understood from the foregoing description that with this tank I am enabled to thoroughly treat and prepare glutinous material, so far. as thejheating or cooking of the same goes, by means of the water jacket surrounding the solution re- 'ceptacle without subjecting such material or solution to the direct action of or actual contact with either steam or hot water, whichis a very important advantage and one of the primary objects of my invention because in no other way have I been able to produce as good results or properly prepare the glue even. f

What I claim as my invention, and desire to secure by Letters Patent, is

l. The combination of a treating tank, for glutinous material, comprising double walls and floors forming a closed chamber around and below the receptacle for the material to be treated, means in the bottom of such chamhcr-to-heat the same, means also in the bottom of such chamber to support the rethe chamber 4;."-

ries o ceptacle on the fioor of the chamber," and agitators in said receptacle adapted to keep the solution therein in motion.

2. The combination with a treating tank, for glutinous material, comprising double walls and floors forming a chamber around "and below the receptacle for thematerial to be treated, of perforated steam pipes in the bottom of said chamber, and supporting members above and below such pipes.

3. The combination with for glutinous material, .comprislng two jackets spaced apart and forming a solution receptacle with a chamber around and below the same for water, of perforated steam pipes in the bottom of said chamber, and supporting membersalso in the bottom of the chamber,-

a treating tank,

said members and certain of i said steam pipes affording a support for the inner jacket on the floor of the outer jacket.

4. A treating tank, for glutinous material, comprising two jackets spaced apart to form an outer closed chamber and an inner receptacle, said chamber having a water inlet and 'outlet and said receptacle havinga solution outlet with a .valve therefor, a stem rising from said valve, a support for the upper terminal of said stem, the latter beingin threaded engagement with said support, and steam pipes in the outer chamber having a connection leading to the outside of the tank.

5. The combination with a treating tank,

for glutinous material, comprising two jackets spaced apart to form an'outer closed chamber around and below an inner receptacle, of a series of steam pipes and a feed pipe therefor in the bottom'ofsaid outer chamber, said pipes "being-perforated and havin their free ends capped, and two sesupports arranged above and below said steampi'pes and crosswise of the same.

- 6. The combination with a treating tank for glutinous material, and a support on top of said tank, of a vertical agitator shaft centered in such tank and suspended from said support. and provided with laterally-extending arms, means to revolve such shaft and means to prevent the lubricant from the upper shaft bearing from passing below the support into said tank.

, ALVA G. RICE.

Witnesses:

E. A. D. Moss, J. H. PECKHAM.

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