US2781700A

US2781700A - Paper machine

Info

Publication number: US2781700A
Application number: US496771A
Authority: US
Inventors: James W Joslyn
Original assignee: Sandy Hill Iron and Brass Works
Current assignee: Sandy Hill Iron and Brass Works
Priority date: 1955-03-25
Filing date: 1955-03-25
Publication date: 1957-02-19
Anticipated expiration: 1974-02-19

Description

Feb. 19, 1957 J. w. JOSLYN PAPER MACHINE 2 Sheets-Sheet 1 Filed March 25, 1955 INVENTOR.

J- W. JOSLYN PAPER MACHINE Feb. 19, 1957 2 Sheets-Sheet 2 Filed March 25, 1955 PAPER MACHINE James W. Joslyn, Hudson Falls, N. Y., assignor to The Sandy Hill Iron & Brass Works, Hudson Falls, N. Y., a corporation of New York Application March 25, 1955, Serial No. 496,771

3 Claims. (CI. 92-43) This invention relates to new and useful improvements in the paper making art and is directed more particularly to improvements in apparatus for making paper.

The principal objects of the invention are directed to the provision of apparatus for making paper which is flexible in all important respects. This is to say stocks of many and various kinds may be used to produce various paper and boards of numerous and novel characteristics and at such speeds as results in uniform and economical production.

According to an important feature of the invention a novel slice is provided in combination with opposite side and bottom walls of a pond chamber and the ascending side of a forming cylinder.

According to other important features of the invention the slice is constructed and arranged for movement vertically and horizontally and is swingable for adjustment of its inner and lower side relative to the cylinder and bottom wall to facilitate the forming of sheets of numerous types from numerous grades and types of stock.

As a further important feature of the invention the slice is constructed and arranged to function as a recirculation component in addition to its function as a slice.

All of the above cited objects I accomplish by means of such structure and relative arrangement of parts thereof, as willfully appear by a perusal of the description below and by various specific features which will be hereinafter set forth.

To these above and other ends and with the foregoing and various other and ancillary features and advantages and objects of my invention as will become more readily apparent as the description proceeds, my invention consists in certain features of novelty, in a mode of operation, and in the combination, organization, and arrangement of parts as will be hereinafter more particularly pointed out in the claims hereunto annexed and more fully described and referred to in conjunction with the accompanying drawings wherein:

Fig. l is a side'elevational view of paper making apparatus embodying the novel features. of the invention;

Fig. 2 is a diagrammatic longitudinal sectional view through the apparatus shown in Fig. 1; and

Fig. 3 is a partial sectional elevational view through one side of the apparatus on the line 3--3 of Fig. 1.

Referring now to the drawings more in detail the novel features of the invention will be fully described.

Inited States Patent One of a pair of similar side frames is shown at 2 in Fig. 1. For strength and rigidity said frames may be formed in the shape of inverted Us from metal tubing. Lower ends of the side parts 4 of the frame are secured as by welding or the like to a ,sole plate or plates 6 to provide a strong rigid structure. Longitudinal tubular struts Stare secured at opposite ends to the depending parts 4 of the side frames as by welding or the like.

Base members such as 10 are provided with curved seats 12 which will be of suitable bearing material to rotatably support peripheral journal portions'14 at opposite ends of a hollow cylinder indicated by 16. The cylinder is such as to rotate freely on the seats 12.

A peripheral external gear 18 is provided at one or at both ends of the cylinder. A transverse shaft 20 is retatable in bearings such as 22 secured to brackets 24 fixed to the right hand parts 4 of the side frames. A drive gear or gears 26 in mesh with the gear or gears 18 of the cylinder being fixed to said shaft 20 the cylinder is rotated clockwise accordingly as said shaft 20 is driven by an electric motor or otherwise as may be desired.

The cylinder 16 has a perforated peripheral portion 30 between its opposite ends which is covered with woven wire cloth 32 of usual form so as to provide a foraminous surface for sheet formation and water drainage as is usual, see Fig. 3.

At the left of the side frames 2 struts such as 36' support the lower wall 38 of a pond or chamber structure: said chamber includes transversely spaced side walls 40 extending vertically upwardly from the wall 38 and a rear wall 42. Inner edges of the side walls 40 extend to and conform to the foraminous surface of the cylinder and may carry sealing means for sealing said walls to said surface. The foraminous surface 32 is shown in Fig. 2 by dash lines for clarity.

Side walls 44 extend rearwardly relative to the walls 40 and with an outer end wall 46 and a bottom wall 48, in conjunction with wall 42 a chamber 50 is formed for recirculation purposes. Connections for recirculation may be made with an outlet 49 of wall 48.

A levelling gate plate 52 is supported by threaded rods 54 which are slidable in a transverse strut 56 fixed to the Walls 40. Wall 42 terminates at upper side as shown and the plate 52 may be raised or lowered by nuts 58 on the rods 54 to establish the level of stock which for purposes of disclosure is indicated by the line L.

A pond slice 60 is provided which has an outer wall 62, and an inner wall 64 connected at lower ends by a curving portion 66. Said walls are connected at opposite vertical edges to side walls 68 which are substantially contiguous to inner sides of the side walls 40. An upper Wall 70 of the slice is arranged to provide a recirculating inlet opening 72. The inner wall 64 of the slice at its upper end carries a lip 74.

The pond slice 60 is movable vertically and horizontally and is swingable so that the inner wall 64 and lip 74 thereof may be positioned relative to the surface of the cylinder in adjusted positions, as desired.

Carriers are slidable on ledges 81 secured to outer sides of the walls 40, as in Fig. 1. Brackets 82 are secured the rods 86 in one direction or the other.

Screws 92 in threaded engagement with brackets 94 fixed to the walls 40 have ends rotatably engaging the carriers 80. By turning the screws 92 in one direction or the other the pond slice may be moved horizontally in one direction or the other.

Levers such as 96 are pivoted at 98 to outer sides of the walls 40 and are provided with slots 100. Studs 102 fixed to the side Walls 68 of the pond slice extend through openings 104 of the walls 40 and slot of the levers 96. Brackets 106 fixed to the Walls 40 have internally threaded members 108 pivoted therein at 11H). Members 112 in threaded engagement with members 108 have links 114 in threaded telescopic engagement therewith and the members 114 at inner ends receive the studs 102.

By turning members 112 in one directionor .the other of the cylinder at the higher speeds thereof as the levers 96 are swung to'thereby swing the pond slice in one direction or the other to the desired position-of adjustment.

Thus by manipulation of the mechanisms the pond slice may be adjusted-so-that its'inner side 64, lip 74 and lower side 66 may berelated to the ascending sideof the cylinder for sheet forming with stock of various grades and types. Means other than shown may be employed for adjusting the pond slice and additional means'may be used for securing the slice in adjusted positions if ire-- essary.

One or both side walls 68 of the pond slice 6% will be provided with a discharge opening 116 which surrounds an outlet or outlets 118 of the sidewall or walls 46, for stock recirculation in adjusted positions of the pond slice. Piping may be connected to the flanges 320 of the openings 11$ for connection in a recirculating system.

A save-all 130 shown in section inFig. 1, is supported from the members 8 of the side frames by hook members 132 of the side walls 134 thereof. An inner transverse end wall 136 of the save-all 136 has a flexible seal member 138 secured thereto by means of an elongated yieldable member 140 and bolt or screw means 142.

A similar seal 144 is secured to a portion 38 of the wall 38 by a plate 146 and bolt means 148. The inner portion of the seal 144 is secured to the plate 146 by a yicldable member 150 and bolt means 152 similar to the member 140.

Upper portions 138 and 144 of the seals 138 and 140 are flexible and so formed as to engage inner and outer sides of the foraminous surface of the cylinder as it rotates clockwise.

Inner circumferentially extending rails 168 extend around and inwardly of the upper portions of the side frames and is supported therefrom by a plurality of portions 162, see Fig. 3. An elongated transversely disposed recirculation slice 164 is provided which is preferably concave as shown in Fig. 1. End walls 166 of said slice carry a rod 168 which is threaded on its opposite ends. Said ends extend through elongated slots 170 of brackets 172 which are carried by the rails 160. The slice 164 may be moved radially and tilted to various positions of adjustment as may be desired and is held in adjusted positions by members 174 engaging the threaded ends of rod 163.

A transverse vertically disposed baffle wall 176 extends between the walls 40 and upwardly from the lower wall 38, see Fig. 2. Stock may be. supplied the apparatus from various inlet means which form no part of the present invention. Said stock may enter through one or more openings such as 39 of wall 38 or of wall 42.

Stock flows upwardly over the wall 176 in the direction of arrow a, beneath the lower portion 66 of the pond slice as indicated by arrow 11 and upwardly between the inner wall 64 of the pond slice and ascending side of the cylinder as it rotates clockwise, whereby forming fibers are deposited in a free forming area of the cylinder as is indicated by P, Fig. 2.

An excess of stock is supplied so that the adjustable plate gate 52 establishes the level L and excess stock flows over the plate into chamber 50 and out the outlet 49 thereof for recirculation. Not only isthe stock recirculated but foaming if not entirely eliminated is reduced so that it is not objectionable.

Other excess stock is directed by recirculating'slice 164 over into the pond slice as indicated by arrows c and out the outlet 118 for recirculating and to overcome flocking or thickening occurring as the sheet is formed thereby to favorably effect sheet formation, grain and other characteristics desired in paper making.

Not only does the slice 164 function for recirculation but it prevents stock being carried around over the top well 'as prevents an excess of water beingcarried over for removal by suction boxes.

. cylinder.

Thus stock is directed to the free forming area of the The-pondslice may be adjusted so that its inner side may be related to the cylinder as is necessary and desired for various types and grades of stock, speed of cylinder, and sheet to be formed. Not only is dual recirculation accomplished but uniform stock level is accomplished, foaming isreduced to a desired minimum if not entirely eliminated, flocking and thickening is overcome, and high speed operation is possible without adverse. results.

Water may be conducted from the save-all by piping connected to flange .131 thereof.

A plurality of suction boxes 130, 182, 184 and 186 are provided. These extend transverselywithin the cylinder and have connecting means such asfianges 138, 190, 192, and 194 for connecting to piping extending to a source of suction or more than one such source should that be desired or necessary.

Suction boxes 180 and 182 are unitary'and all of said suction boxes are adjustablecircumferentially and indepcndently on ledges 200- at outer-sides of the side frames as shownin connection with suction box 184, in Fig. 3.

A support 202 of the suction box 184 underlies the ledge 290 and-has a threaded stud 204 fixed thereto and extending upwardly therefrom. A clamp 206 on stud bears on the ledge 200 and the support 292 and a clamp nut 26% in threaded engagement with the stud 204 so as to clamp the suction box with its suction face closely adjacentthe inner side of the 'foraminous surface 32 of the cylinder.

The suction boxes are independently and circumferentially adjustable and gear means or the like for adjusting them may be provided if desired. By being adjustable the apparatus may bereadily and easily adapted for many and various types and grades of stock and for sheets of numerous characteristics. The suction boxes are secured in the manner described at their opposite ends.

Oneor several press rolls may be provided as desired depending upon the particular operation of the machine. For purposes of disclosure a press roll is shown at 210 and a roll is shown at 212 which may function as a press and couch roll. Either or'both rolls may have a resilient surface or a surface of any desired characteristics and a felt may if desired extend around the roll 212 for takeoff purposes.

The rolls 'are carried'by the'inner rails at inner sides of'the 'side frames. -As"sl1own in 'Fig. 3, a shaft 214 of the roll210 at its opposite ends is rotatable in bearings such as 216Which are secured tothe rails 160 by suitable bolt means 118 bearing or hold down strips 220 carried by'the rail parts 160 the side frames for bearing on 'thecircumferential portions 14 of the cylinder.

By means of the adjustability of the components not only may the suction boxes be positioned as desired circumferentially relative to the cylinder but the relationship of the suctionboxes and rolls may be a desired.

The novel slice being adjustable as it is makes it possible in the use of paper making apparatus to employ various stocks for forming sheets of various characteristics at various speeds.

'The invention may "be 'embodied in other specific forms without departing from the essential characteristics thereof. Hence, the present embodiments are therefore to be considered in-all respects merely as being illustrative and notas beingrestrictive, the scope of the invention being indicated by theappended claims rather than by the foregoing description, and all modification and variations as fall'withinthe meaning and purview and range of equivalency of .the appended claims are therefore intended to berembracedtherein.

What it is dcsircdtozclaim and secure by Letters Patent :of the United States is:

,1. Paper making apparatuseomprising in combination,

a supporting structure having an elongated cylinder rotatable therein on a horizontal axis and provided with 'a foraminous web forming surface, a head box having opposite ide walls extending away from opposite ends of said cylinder, a rear wall connecting rear ends of said side walls and a bottom wall connecting lower ends of said side and rear walls extending to said cylinder, a unitary slice in said head box including; outer rear and inner forward walls connected in horizontally spaced U shape relation by a transversely concaved bottom wall and side walls adjacent the side Walls of the head box connected to said outer and inner and bottom walls and 'having an opening for stock in the upper side thereof, and adjustable mounting means between said slice and walls of the head box adapted and arranged for movement of the slice vertically and horizontally and angularly to position the inner and bottom wall of the slice relative to the ascending surface of the cylinder and bottom wall of the head box and provide a space for stock between said slice and the bottom wall of the head box and surface of the cylinder.

2. Paper making apparatus set forth in claim 1 wherein said inner wall of the slice is concaved between upper and lower ends thereof relative to the upper portion of the surface of the cylinder.

3. Paper making apparatus comprising in combination, a supporting structure having an elongated cylinder rotatable therein on a horizontal axis and provided with a foraminous web forming surface, a head box having opposite side Walls extending away from opposite ends of said cylinder, a rear wall connecting rear ends of said side walls and a bottom wall connecting lower ends of said side and rear walls extending to said cylinder, a unitary slice in said head box including; outer rear and inner forward walls connected in horizontally spaced U shape relation by :a transversely concaved bottom wall and side walls adjacent the side walls of the head box connected to said outer and inner and bottom walls and having an opening for stock in the upper side thereof, and adjustable mounting means between said slice and walls of the head box adapted and arranged for movemen-t of the slice vertically and horizontally and angularly to position the inner and bottom wall of the slice relative to the ascending surface of the cylinder and bottom wall of the head box and provide a space for stock between said slice and the bottom wall of the head box and surface of the cylinder, a flexible lip on the upper end of the inner wall of the said slice, and the outer wall of the slice being disposed generally vertically in all positions of the slice in the head box.

References Cited in the file of this patent UNITED STATES PATENTS 1,385,341 Wagner July 19, 1921 2,154,719 Berry Apr. 18, 1939 2,658,428 Goldsmith Nov. 10, 1953