US1991432A

US1991432A - Drier mechanism for paper making machines

Info

Publication number: US1991432A
Application number: US614892A
Authority: US
Inventors: Charles W Valentine; Helin Alfred
Original assignee: BAGLEY AND SEWALL Co
Current assignee: BAGLEY AND SEWALL Co
Priority date: 1932-06-02
Filing date: 1932-06-02
Publication date: 1935-02-19
Anticipated expiration: 1952-02-19

Description

Feb. 19, 1935. c. w. VALENTINE ET AL 1,991,432

DRIER MECHANISM FOR PAPER MAKING MACHINES Filed June 2, 1932 1 z a" fi' 29 3 ll I H 1. H

INVENT ATTORNEYS densati'on fro'm'the cylinders;

these cylinders is a steam joint and 1a siphon Patented Feb. 19, 1935 I v f1 991,432 I v -j -"DRIER TMECHAN S Foe PAPER MAKING V :MACHINES g Charles W. Valentine and Alfred l-lelin, Water town, N.--Y., assignors to-The'Bagley and Sewall FATE-Nell otFFics 1 g Company, Watertown; N. Y.,.a corporation of New York Application June 1932, Serial 1 7 Claims. (01. 285-10) invention-relates to certain improvements in steam heated rotary drier cylinders, suchas thedrierrollsused in paper makingmachines,

mechanism for-paper, making machinescomprises large hollow cylinders over which the web passes from th'emaking end of the machinegand these cylinders are usually. heated by steam, and where steam is used means must be provided 'for supplying the'steam and withdrawing the-water of con.-

Connected I with tube or pipewhich extends into the cylinder. These' pi pes are of considerable length and prefera-blyar supported so that their inner ends may be adjusted toward andirom the 'cylinder wall,

andf-"a steam joint must bejpro-vided through which {steammay be admitted to the cylinder;

The steam joint; the cylinder and the'cylinder bearings, t )'effect the best results, are run sub- 'stantially concentric, and it is the especial object ofjthe present invention to provide a steam joint construction which is'adjustable, so thatfit'can adjustedrelatively' to the axis of the cylinder so as to runconcentric therewith, this being particularly advantageous in-"machines where one en! of thecylinder journal does not run perfect- .ly'truei i y A' f-urther object of theinve'ntion is top'rovide an improved steam jo'int and connections whereby steammay be admitted directly into the cylinder, ,so'that'itdoesnot come in contact withthe bearin'g's and therefore does not heat thebearingsand in which it is admittediin theform of a' jet so .tha t arbetter distribution 'ofthe steam mto the cylinder iseffected. v v t I A furtherobject .of the invention is to provide :an .improved; meanso for -supporting the siphon pipe used iii-withdrawing the water of condensation from the cylinder so that this pipe will not become displaced, due to its :weightgand come in contact with the rotating parts of the mechanism. a xjAf LlIilhEI' object of theinvention is-to improve 51111966178115 ofgconstruction or the steam jointitself so that an efiectivejoint is providedand one which may be adjustedwhile the mechanism is running, v ".7

,With these and other objects not specifically referred to in view, the invention consists incertain novel parts, arrangements andcombinations which will be described in detail in connection withthe accompanying drawing and the novel features pointedgout in the claims hereunto 'ang} nexed 1 g .In the drawing,-

Figure 1 is a sectional view, partly broken away,

Ofgne end of a driercylinder'showing the imi proved construction; 7 g Figure 271s adetailsectional view; on an enlarged scale, of part oithe constructionshown inv Figure '1,and v Figure 3 is-a detail endview, showing: the improved means for supporting the siphon pipe. o RGfEIllDQ IIOWV to thedrawing, theconstruc tionis' elected to illustrate the invention comprises a cylinder ;having side walls 1, which are thickened at theends 'toform a flanged undercut to form a shoulder '3, Secured to the flange 2, by

bolts 4, is ahead 5, which is elongated to form an at '7, and centrally hollowed, as indicated at 8, this journal havingsecured thereto a driving gear-9 for driving it and the cylinder. 7 In order to effect the desired adjustment of the steam joint, more fullyuhereinafter referred to, with't-he cylinder journal, there is provided a hollow sleeve lo, which is secured to the end of the journal 6 v by means of bolts "11 which pass through a flange l2 formed on the end' of the sleeve 10 and in which the bolts have a slight play. This sleeve l0has an a.

extendedjournal 6, rotating in bearings indicated 5 inwardly "extending member orcollar 13, through which passes a suitable number of adjusting spherical facell, this construction-forming in effect a, ball and socket joint This sleeve 10 supports a. steam joint hereinafter referred to,

and by this construction -the steam joint as a i Whole may be made to run: concentric with the journal and may be lined up to a position concentric with the axis of rotation of the cylinder.

Steam is supplied to a chamber 18 of the main steam joint, indicated generally by the numeral 19, through a pipe 20, and the water of condensation is withdrawn from a chamber 21 through a pipe 22, these pipes being screw threaded, as indicated at 2 24,..into suitable flanges formed on the main steam joint 19.

The adjustment for lining up the steam joint and the end of the cylinder journal may readily be effected by unscrewing the

pipes

20, 22, loosening the adjusting screws 14 and the tap bolts 11, so that these parts may be loosened by a light hammer blow and the entire steam joint may then be rotated and brought to a true running position, and when the parts are running true the adjusting screws 14 and the tap bolts 11 are tightened to retain the parts in this position.

The steam joint 19 includes a housing or casing, indicated at 25, which is elongated to provide the chambers 18, 21, before referred to, the casing being formed with an intermediate wall or partition 26 into which is threaded the end of a siphon pipe 27. This casing is recessed at 28 to receive a collar 29 shrunk on the sleeve 10. On each side of this collar is located a pair of

bear ing rings

30, 31, these bearing rings being held together by pins 32 passing through the collar 29.

These bearing rings are of special self lubricating material and of liberal proportions so as to take care of the pressures to which they are subjected without the need of additional lubrication, bronze having been found very effective for this purpose.

On the inner or cylinder end of the casing or housing 25 is a packing box comprising a flanged member 33 secured to the housing 25 by bolts 34, packing medium 35 being located in this flange and held in position by a packing gland 36, adjustable while the machine is running to adjust the packing by means of screw bolts 37.

With this construction it will be observed that, when the machine is operating, the only revolving parts are the sleeve 10, the

bronze rings

30, 31, which revolve together with the collar 29, as they are held together by the pins 32. The main steam joint 19, the packing box 33, and the packing gland 36, as well as the siphon pipe 2'1 and a steam tube 38, hereinafter referred to, are stationary. With this construction, the weight of the steam joint is carried by the sleeve and the two bearing

rings

30, 31, which also take up any thrust of steam pressure or angular pressure due to'the weight or strains from the pipe connections. If desired, the

pipe connections

21, 22 may be provided with flexible joints, indicated at 39, 40.

In accordance with the invention, an improved arrangement for the steam inlet pipe and for supporting the siphon pipe is provided.

The steam pipe is so arranged that the steam may be supplied to the cylinder with the effect of a jet action, so as to secure a good distribution of steam throughout the cylinder, and furthermore this steam inlet pipe is so arranged as to prevent the steam from coming in contact with the journal 6 through which it passes. In order to effect these results, the pipe, as shown, is arranged so that its entry end is closely adjacent the interior of the drier cylinder, the pipe being preferably arranged so that its end 41 extends slightly into the cylinder head. It will be seen therefore that by elongating the pipe in this manner live steam is kept away from the walls of the journal 6, so that these walls do not heat up and there is a more even temperature between the journals at each end of the cylinder.

Furthermore, any steam coming in contact with the journal wall must work back through the restricted space between the tube 38 and the inner wall of the journal. In thus working, the steam will condense so that water rather than steam works back into the body of the packing box, having to work around the

bearing rings

30, 31 before reaching the packing in the box. Thus it is very easy to maintain a seal at this point, thus reducing to a minimum the chance of steam blowing through the steam joint, and this condensed steamalso serves as a water lubricant for the

rings

30, 31.

As before stated, in the best constructions means are provided for supportingthe siphon tube at a point intermediate its length, so that it will not tend'to deflect to an undesired point in its relation to the inner wall of the cylinder. These means may be of various characters, but, as shown, the'siphon tube is supported fro-m the end of the steam pipe 38, where it enters the cylinder. These supporting means may, of course, be varied, but, as shown, there is provided a V-shaped member 43, see Figure 3, welded at 44 to the tube and at 45 to the inner surface of the pipe.

It will be seen from the construction described that a very effective and efficient steam joint has been provided for these driers, and one which permits the accurate lining up of the parts and which insures a satisfactory steam joint which can be adjusted while the machine is running.

While the mechanism has been shown and described in its preferred form, it will be understood that various changes and variations may be made in the particular construction and arrangement of the parts shown without departing from the invention as defined in the appended claims.

What is claimed is: v

1. In a drier mechanism for paper making machines, the combination of a drying cylinder or roll, a journal therefor, a sleeve secured to the end of the journal and having a flange by which the sleeve is secured to the journal end, a steam joint assembly supported on the sleeve, and adjusting screws cooperating with the flange for adjusting the sleeve and assembly relatively to the journal to effect an alignment of these parts.

2. In a drier mechanism for paper making machines, the combination of a drying cylinder or roll, a journal therefor, a sleeve secured to the end of the journal and having a flange by which it is secured to the journal end, a steam joint assemblysupportedon the sleeve, a joint including cooperating curved surfaces between the sleeve and the end ofthe journal for aligning the sleeve and the assembly, means cooperating with the journal flange for adjusting the joint, and means for locking the parts in adjusted position. I

3. A steam jont assembly for drier cylinders comprising a sleeve secured to the end of the cylinder journal and rotating therewith, a steam seal and thrust member comprising a pair of spaced members rotating with the sleeve, a stationary casing in which the sleeve and members rotate, means for supplying steam to the casing, a steam conduit within the sleeve but spaced from the sleeve and journal, and a siphon pipe within the steam conduit.

4. A steam joint assembly for drier cylinders comprising a sleeve secured to the end of the cylinder journal and rotating therewith, a steam seal and thrust member comprising a pair of spaced members rotating with the sleeve, a stationary casing in which the sleeve and members rotate, a steam seal associated with the casing, means for supplying steam to the casing, a steam conduit within the sleeve but spaced from the sleeve and journal, and a siphon pipe within the steam conduit. i I

packing gland associated with the casing, means for supplying steam to the casing, a steam conduit within the sleeve but spaced from the sleeve and journal, and asiphon pipe within the steam conduit.

6. A steam joint assembly for drier cylinders comprising a sleeve secured to the end of the cylinder journal and rotating therewith, a steam seal and thrust member comprising a collar and a pair of spaced bronze disks rotating with the sleeve, a stationary casing in which the sleeve and members rotate and with a wall of which one of the discs engages, a packing gland with which the other of the discs engages, and a steam supply to the casing. v I

'7. In a drier mechanism for paper making ma-' chines, the combination of a'driercylinder having an elongated journal forming a sleeve and rotating with the cylinder, a stationary casing mounted on the sleeve, a stationary conduit, a stationary siphon pipe supported at one endin the'casing and extending through the conduit into the cylinder, these parts being concentric, a

the weight of the parts, a packing seal independent of the discs associated with the sleeve, and means for supplying steam to the conduit and withdrawing water of condensation from the casing.

' CHARLES W. VALENTINE.

ALFRED-HELEN.