US966199A - Housing for sugar-mills. - Google Patents

Description

W. G. HALL'.

HOUSING FOR SUGAR MILLS. APPLIOATION FILED AUG. 20, 1909.

966,199. Patented Aug.2,1910.

4SHEETS-SHEET 1.

v WITNESSES 4 1 INVENTOH C} W I Wl ilzl lm 622M? fa/Z W. G. HALL.

HOUSING FOB- SUGAR MILLS.

APPLICATION FILED Aue zo, 1909.

Patented Aug. 2, 1910.

4 SHEETS-SHEET 2.

' INVENTOR William flaw/129 flail WITNESSES YKMQA W A TTQRNEYQ W. G. HALL.

on SUGAR MILLS.

Patented Aug. 2, 1910.

I 4 SHEETS-SHEET 3.

W/ TNESSES a RMQ ATTORNEYS 3 W. G. HALL.

HOUSING FOR SUGAR MILLS.

APPLICATION FILED AUG. 20, 1909.

} 966,199, Patented Aug.2,1910.

4 SHEETSSHEET 4.

4.2 7 4X 1; 0 21. 14 8 1 2'8 Z 5/6 Z7 41 Q 41 42 29 1 M 1 3 l l I l l I Y a W l. 5 W

W/TNESSESO INVENTO/i' (ARM \7 M v M21121, 62mm Hall ATTORNEYS were sins rnrnr Faro WILLIAM canvrn HALL, or HQNOLULU, TERRITORY or HAWAII.

nonsine roRfsUeAR-MILLs.

scenes.

To all tohom it concern: 4

Be it known that I, W'ILLIAM Gnnv'rn I-lALL, a subject of the King-of Great Brit; am, and a resident of the city and county of Honolulu and 'lerritory of Hawaii, have invented a new and Improved Housing for Sugar-Mills, of which the following is a fulholear, and exact description.

Among the principal objects which the present invention has in view are: to provide hydraulic jacksfor imposing and equalizing the pressure on'the master roll of the sugarcane crushing rollsz' to provide a mounting" for the sald jacks whereby the inequalities of wear of the bearingbra-ssesare accommodated: to provide devices whereby. the

said jacks maybe withdrawn from Opera tive positiontor repair or replacement rap-" idly and readily: to provide'a bracing stru'c-' ture for maintaining thesa id masterroll in positlon, (the brasses' being disposedwith reference to receiving the maximum strain in aline coincident with the line of the resultant expansive forces developed between the three rolls, and to provide means for ad gusting the bearing saddles of the lower rolls. I I

One embodiment of the present invention is disclosed in the accompanying drawings,

which form part of this specificatiun, in which llliGClliLIRCtGlS of reference lndlcate like'parts throughout the views, and in" which v Figure 1 is a front elevation of rolls constructed and arranged in accordance With the present inventionf-Fig. 2 is' a side elevat-ion of one of the bearing'standards show-.

ing the roller shaft-s in section; Fig. is a vertical section taken on the line 33 in Fig. l of thefu 'apenportion of one of said standards; and Fig-.4 cross section of the rolls taken on" the line 4P in Fig. 1.

The arrangement and operation of the rolls 5, 6 and 7 do not diiier very materially from most of the'rolls now in use on mills for similar purposes. [The sugar-cane ism troduced'hetween the rolls 6 and7, which,,as

will'be noticed in. Fig. 4 of the drai'vi'ng, are

somewhat-separated, soasnot'to produce at I on the other, differ in proportion to their juxtaposition. The separating force exerted between the rolls 5 and 7 "largely exceeds that exerted between the rolls 6-and 7. Heretofore, in some mountings of theserolls the supporting structurehas been designed to maintain thetriangular arrangementof' the rolls by braces disposed equally to each side of the line central between'the' axis of j Specification of Letters Patent Patentetl lhug'. 2 1910; i V Application filed August-20 1909. Seria1No.51 3,8S4. I

"6 and 7 on "the one side, and rolls 5 and 7 I have braced these rolls so that I place the thrust rods 8, 9 with reference toa linecoinr:

cident with the resultant oftlie forces, tending to lift the IOllfiT. The thrust rod 91,

ext'end'through a hole 10 provided in standards 11in a position parallel-withthe-line fl which would represent theresultant of the Fig. 4 'I haVe added in' diagram-the line the line showing the lineof the resultant force or exertion received by the .roll 7 .to lift it from the rolls 5 and 6. The line of force I have designated by the letters A, A,

while the central lineiof the thrust rod 9 I have designated by the letters B, B.

dual thrusts of the said rolls hand 6'. In I i The thrust rod 8 is passed through a hole I 12 formed in the standard l1,"as shown in Fig. 8 "of the drawing. The eXtent-ofthe thrust rod 8 is governed by the convenience 0f,the' structure, it being arranged-sothah it is passed through a side cap 13 which holds in position the roll 5, and a top cap 1-1;

which receives the thrust of the roll 7. The thrust rod 9 passes through'the cap let and is extendedthrongh the standard 11. and bed plate l5, or side rails thereof, bosses 161,6

being provided therefor. Both rods in each, of the standards are held in place by tapered pins li -17 and 18 18, the same beingdriven through suitable perforations in the ends of the said rods.

By means of these tapered pins the rodsinay be-given a. final,

tightening at any 'rnomentby'th'e pinslibeing-"tapped to drivethem into the, perforations provided in the saidrods, the topen ds'o f the said pinsbeinglarger n dlmensi'ou than will. pass throughthe perforations'when the rods have :been properlyad; 'j'usted' to their initial position. The rods are primarilytightened by means of screwnuts 19 -19." The thrust rods 8, 9 .areplaced.

in position after the side caps 13, 20 and the cap 14 have been placed in position.

The bearings for the rolls 5 and 6 are shown in Fig. 2 of the drawings. They consist primarily of a saddle bearing 21, which maybe constructed from brass,bronze or other suitable material. They are shaped to provide a seat for the bearings 22-22 of the rolls, and to have a vertical wall properly milled to form a'sliding seat on the inner face of the caps 13, 20. The lower surface of the saddles 21 are slightly beveled to receive sliding wedge blocks 23. The saddles are held against the vertical surface of the caps 13, 20 by means of screw bolts 2-;t24, which are suitably threaded to engage the said saddles. The bolts Que-2% are extended through vertically elongated slots 25, 25 formed in the caps 13, 20. Placed under the heads of the bolts 21-24 and to straddle the slots are suitablewashers 2(3L-(3.- The impinging strain exerted upon the bolts 21t21 seats the saddles 2121 hard against the caps 13-20, and

prevents any chattering on the part of the said saddles.

lYhen it is desired to adjust the position of the rolls 5. (S with reference to the roll 7 this'is accomplislual by means of the blocks 23, '23, these being either withdrawn or extended under the said saddles. This adjustment of the blocks 23 is produced by means of screw bolts 27, 27. The bolts 27, 27 are rotatably mounted in perforated lugs 282S extended from the sides of the caps 13. 20. he bolts 27 are held in a rotative position with reference to the lugs F -28 by any well known and suitable constructi n. The bolts are suitably screwthreaded at the end opposite the head to engage a suitably threaded perforation formed in the lugs 29-25) extended from the sides of the blocks 2? -23. By manipulating the bolts 2727, they being rotatably held in the lugs 2828, the blocks 23-23 are pro jccted or retracted with reference to the said lugs or the caps 13, 20. \Yhen, now, it is desired to raise or lower the rolls 5 or 6, the bolts 2%, 24 are slackened, permitting the saddles 21i1 to rise and fall. The bolts 27 are rotated to project the blocks 23 if the desire be to raise the saddles, until the desired position of the rolls is attained. These positions having been attained, the operation upon the bolts 27 is suspended and the bolts 2l"21 are set up to draw the saddles 21. 21 hard against the caps 13. -20.

The upper or master roll 7 is mounted in journals, the boxing of which is split and. the upper portion formed by the moving brasses 30., 30. These brasses rise and lower on the guides 31-31. The tops of the brasses are provided with a spherical head to form a ball and socket joint in conjunction with thetrimming blocks 32-32 which extend through the lower wall of the caps 14-14:, to form the seats for the hydraulic screw jacks used in connection with these rolls. It is by means of these hydraulic jacks that the desired pressure is placed upon the roll 7 and by means of which the pressure at the opposite ends of the said roll equalized to accommodate the inequality of the strain during the progress of the operation. The jacks consist of cup-like casings 33 of square or circular inner dimension. The bottoms 3% of these casings rest upon the trimming blocks 32. The casings 33 are adapted to extend through perforations 35 provided in the caps 11-1l, said perforations being open-ended, so that the said casings or jacks may be slid into position within the caps 14 from either end of the said perforations.

Fitted snugly within the chamber of the casing 33 is a plunger 36, slidably fitted in the said chamber and adapted to be secured to a shoe 3? which bears against the pads provided in the tops of the perforations in the casings of 'the caps 14. Between the plunger 36 and shoe 3? is inserted a leather or other suitable packing 38 which is adapted to form between the side walls of the plunger and the casing a water-tight joint. Extended from the side wall of the casing through a fitting 39 fixedly attached to the said casing is a water inlet connected with a suitable accumulator or other water pressure regulating mechanism.

Vater pressure is admitted within the chamber of the casing 33 under the plunger 36, and the pressure exerted is proportionate to the square area of the plunger 36. The water is admitted within the chamberfof the jack by means of the fitting 39. Theiitting 39 is provided to receive the pipe delivering the water from the accumulator.

When in operation and the feed of the rollers having been starte the water pressure is turned on from the accumulator, and the plunger 36 restingagainst the solid head of the caps let-J 1, it presses the casing 33 upon the terminating block 32 and by means of the same upon the brasses 30, and by means thereof upon the roller T. Vhen now in the course of the operation the accumulation of wane passes under the one end of theroller 7 the excess strain thereof is accommodated by the water in the jack at that end of the roller 7 receding from the said jack and thus permitting the rise of the roller 7 at that end of the same. while preserving the equalized pressure at bothends of the roller. These jacks are more or less subject to breakage or disrepair and it is to withdraw the same repeatedly and rapidly from the operative position between the cap 14 and the termii'iating block 32. that l have provided the open-ended recess in the said cap 1 1 and extend between the two standards in line with the said recesses. the angular rails 40. The rails forn'i the supports for the jacks when the same are 4 drawn fromou't of the recesses The pipes which connect thesaid jacks and the accumulator or water pressure may be in this position easily removed from the fitting 39. A new jack may be substituted or the old repaired and replaced in the recesses 35, and this with the minimum loss of time. The strain exerted upon the saddles 2121 and transferred thereby to the caps 13 and 20, is received upon the thrust rods 41- l1 which are extended through holes provided in the standards 11 and provided with suitable, threaded end extensions adapted to receive the nuts 4*2 l2.

It will be observed by reference to the drawings, particularly at Fig. 2 thereof, that the thrust rods atlll are extended parallel them to the standards 11-l1.

each to the other and to the line drawn between the axes of the rollers 5 and (3, thus receiving in direct line the thrusting strain tending to separate the same. All vertical strains on these rollers are received directly upon the blocks and transferred by The thrust rods 8 and 9 which receive the thrust of the cap l l are arranged with direct reference to the lifting strain exerted upon the roller 7 by both of the rollers 5 and 6. It will be noticed particularly that the rod 9 is carried through the standards 11 as close as convenient to the'bearing for the roller 7 and is extended in a line parallel to the line of the resultant of the forces tending to separate the said roller 7 from the rollers 5 and (3. The thrust rod 8 is extended designedly as shown, so as to pass through the cap 13, aiding thereby to support and maintain the same in position. The operating strains received by the rollers 5, l3 and 7 are by the construction of the present housing each provided for in such manner as to support the said strains upon the thrust rods 8, 9 an tl ll, taking advantage of the tensile strength of the materials from which these rods are constructed, and serving to relieve the castings of the body of the standards and the caps.

Havin thus described 111 Y invention 1.

2. A sugar mill, comprising a pressureroller, yielding bearings for said roller, expansible pressure members embodying a body-portion having formed therein a chamher, a plunger slidably mounted in said chamber, suit-able ducts connecting said chamber with a fluid pressure system adapthaving laterally extended chamberstoreceive said pressure members, andysup'por.ts--

extended laterally from said standards to receive said pressure members when the same are withdrawn from said laterally extended chambers.

3. A sugar mill, comprising a pressure roller, yielding bearings for said roller, expansible pressure members embodying a body portion having formed therein a suit able chamber, a plunger slidably mounted within said chamber, suitable ducts for connecting the said chamber with the fluid pressure system adapted to extend said plunger .from said chamber, standards for said rollers having recesses to receive the said bearings, caps to fit said standards above said pressure roller and having laterally extended chambers to receive said pressure members, trimming blocks to form rocking joints between said bearings and said expansible members,- and supports extended laterally from said standardsto receive said pressure members when the same are withdrawn from said laterally extended chambers.

at. A sugar mill, comprising a pressure 'roller, yielding bearings for said roller, ex-

pansible pressure members embodying a body portion having formed therein a suitable pressure chamber, a plunger slidably mounted in said chamber adapted to be extended in the line of movement of said roller, suitable ducts for connecting the said chamber with a fluid pressure system adapted to extend the said plunger from said chamber, standards for said rollers having recesses to receive the said bearings, caps to fit said standards above said pressure roller and having a laterally extended chamber to receive said expansible members, and rails extended between said standards in line with the "said chambers and said caps to receive and support the said expansible members when they are withdrawn from said laterally extended chambers. i

5. A sugar mill, comprising expansible pressure members adapted to rest between the standards of said housing and the pressure roller to exert a designed pressure on said roller, and rails extended between the standards of said housing in line with said members to support and guide the same when withdrawn from or being introduced into operative position.

6. A sugar mill, comprising side standards for said housing adapted to receive the pressure rollers in triangular arrangement, caps adapted to rest upon said rollers to maintain them in propel bearing relation. expansible pressure members mounted between said rollers and said caps and adapted In testimony whereof I have signed my to exert lndependent pressure on the end name to this specification 1n the presence of bearings of sand rollers, and supporting rails two sul'iscrlbingz Witnesses.

extended between the said standards adapt- \VILLIAM GARVIE HALL. ed to support and guide said expansible Witnesses: pressure members when being introduced 'HARVEY R. GRANT,

lnto or Withdrawn from operative position. ROB. ANDERSON.

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