US1726440A - Slice for paper-making machines - Google Patents

Description

Aug. 27, 1929.

P. J. ,LAMOUREUX SLICE FOR PAPER MAKING MACHINES Filed sept. 1, 1927 2 sheets-sheen 1 l' V INVENToR y P/lzpslazlnowelz' A TTORNE Y.

Aug. 27, 1929. P. J. LAMouREUx SLICE FOR PAPER MAKING MACHINES Filed sept. l, 192'/ 2 sheets-Sheet 2 1NVENToR. Lanzan/reim ATTORNEY.

Patented Aug. 2.7, 1929.

UNITED STATES PATENT oFFlCE.

SLICE FOR PAPER-MAKING MACHINES.

Application led September 1, 1927. Serial No. 216,958.

This invention relates to a slice to be usted l.in paper making, and is designed primarily to be used in connection with paper making machines of the F ourdrinier type, but it is to be understood that a slice, in accordance with this invention, may be employed in connection with any type of machine or for any purpose for which it is found applicable, and the invention has for its object to provide, in a manner as hereinafter set forth, a slice of the class referred to for increasing the output of the machine without increasing the cost of maintenance by constructing and arranging -the slice in a manner to form a smooth unobstructed passage for the pulp around the rear of the slice, whereby the pulp will travel under the slice With almost absolute freedom from lumps or voids, thereby overcoming the formation of eddies and the gathering of the pulp at such point resulting' in retardation of' the operation of the machine due to the time lostv .in freeing the pulp for passage to .the making wire. A further object of the invention, yis to provide, in a manner as hereinafter set forth, a one-piece, resilient, adjustable slice for regulating the flow of paper pulp or stock onto the making wire of themachine.

A further object ofL theV invention is to provide, lin a manner as hereinafter set forth, a slice for use in connection with paper making for producing a product of uniform thickness and with lumps and apertures in the product reduced to a minimum.

Further objects of the invention are to provide, in a manner as hereinafter set forth, a slice-of the class referred to, which is simple in its construction and arrange- 40 ment, strong, durable, compact, thoroughly eflicientfin its use, readily installed, conveniently adjusted and set in adjusted position, and comparatively inexpensive to manufacture.

lVith the foregoing and other objects in view, the invention consists of the novel construction, combination and arrangement of parts as hereinafter more specifically described, and illustrated in the accompanying drawings, wherein is shown an embodi- .nient of the invention, but it is to be understood that changes, variations, and modifications can be resorted to which will fall within the scope of the claims hereunto appended.

In the drawings wherein like reference characters denote corresponding parts throughout the several views Flgure 1 is a fragmentary view, broken away, 1n side elevation of a paper making machine showing the adaptation therewith of an adjustable slice in accordance with this invention.

Figure 2 is a fragmentary view, in vertical section of a paper making machine, showing the adaptation therewith of an adjustable slice in accordance with this invention and with the slice in vertical section.

Figure 3 is a front elevation, partly 1n section, of a slice in accordance with this invention, and showing the adaptation thereof in connection with a paper making machine. l

Figure 4 is a section on line4-4, Figure 3.

Referring to the drawings in detail, there is illustrated a breast roll 1, making wire 2, a box or containerj3, for the body of pulp or stock 4.y The side walls, bottom and the front wall 7 0I' the box 3, are indicated respectively at 5, 6 and 7. The foregoing, elements are a part of a paper making machine of the Fourdrinier type and illustrated by way of example to show the adaptation of a slice, in accordance with this invention, therewith.

The front wall 7 of the box 3, is inset with respect to the forward ends of the side walls 5 of said box. The bottom 6 has its lower face, at its forward end, bevelled as at 8, and positioned over the making wire 2, at the high part of the latter when travelling around the breast roll 1. The breast roll'l operates in a counter-clockwise direction and provides for the upper portion of the making wire 2 to travel forwardly with respect to the forward end of the bottom 6. The pulp or stock 4 isv discharged from the box 3 over the forward end of the bottoni 6 and upon the making wire 2. As is well known, the upper face of the bottom 6, at the forward Iend thereof, is provided with the ordinary apron board, and the latter is not shown.

The slice, in accordance with this invention, controls the discharge of the pulp or stock 4 from the box 3 onto the making wire 2. The slice comprises a slice member formed of one piece of material, preferably sheet metal and possessing a resilient characteristic of the desired degree. The majorv part of the slice member 1s disposed .at an obtuse angle with respect td the bottom 6 and said major part projects forwardly from the front wall 7 of the box 3 towards the bottom 6 and at a downward inclination. The slice member will be referred to more specifically hereinafter. The front Wall 7 of the box 3 has its bottom edge lpositioned a substantial distance above the bottom 6 and owing to the position of said wall 7, with respect to the bottom 6, an outlet forthe ulp or stock 4, is provided, and said out et is controlled by the slice member. The front wall 7 has its bottom edge positioned a substantial distance rearwardly with respectto the forward edge of the bottom 6. The-forward edge of the bottom 6 is positioned slightly rearwardly with respect to the forward edges of the side walls 5'of the box 3. Each side Wall 5 of the box 3 is formed with a rectangular opening 9 having the major portion thereof projecting forwardly with resp-ect to theQ wall 7. The opening y9 extends rearwardly `asmall distance with respect to the front wall 7 of the box 3. e

`A` slice, in accordance with this invention and for the purpose referred to, comprises a lvertically adjustable supporting plate 10 which is positioned against the forward face of the front wall 7 and extendsfrom one side wall 5 to the other side wall 5 of said box 3. The plate 1() is ofrectangular contour and its width thereof is materially less than the height of the front Wall 7. v The plate 10 extends from the lower part of the opening 9 to the lower end of the front wall 7. The

' lower face of the front wall 7 is bevelled as at 11 and the lower edge of the plate l() is :I other end of the plate 10. The mortise 13, u

not only provides a shoulder 14, but in connection with the lower part of the forward face of the wall .7forms a socket or pocket .15. Each end of the plate 10 is provided with a forwardly extending right angularly disposed flange 16. The flanges 16 abut against the inner faces of the side walls 5 of the box 3. The plate 10 is slidably connected'against the forward face of the front wall 7 of the box 3, b a pair of vertically disposed combined gui e and retaim'ng'mem-- ber 17 which overlap the ianges 16, abut against the\ side walls 5, are fixedly secured to these latter by the holdfas't devices 18, and extend to the forward face of the wall 7.- The adjusting means`for the plate 1() will be presently referred to. I

The' plate 10 at its top is formed witha forwardly directed, right angularly disposed l `ledge or support 19 of suitable width and which extends from one end to the other end of the plate. The ledge 19 is provided withv a series of spaced openings 20. 'Projecting laterally from the rear of each end ofthe led e 19, is an'arm 21, of appropriate length, an which is formed with a vertically disposed opening 22 having a .threaded wall. The. arms 21 project in opposite directions with respect to each other and extend throughthe openings 9. The arms 21 pro` ject a substantial distance from the side Walls .5 of the box 3. Secured to the outer faces of the side walls 5, and arranged below each arm 21, is an angle shaped bracket 23,

provided with a socket 24 and a retaining screw 25, and the latter is mounted in a "manner nto project towards the walls 5 and at 29, and is not formed with threads, but is provided with an annular groove 30 into whereby the shank 27 will berotatably connected to a bracket 23. Mounted on the shank 27 and positioned above the arm 21, is a binding nut 31, vhaving a knurled edge.

The slice member' is` indicated generally at 32, and in cross section, formed of a ma- Ijor part 33 and a part 34 which is disposed vertically with respect to 'the major part 33.

which projects the inner end of the screw 25,

The parts 33, and 34 are disposed at an angle with respect to each other, and the cross sectional width of the major part 33,

is materially greater than the cro sectional width of the part 34. In cross section the 'major part -33 extends in the same plane throughout and the plane of the major` part 33 is at an obtuse angle with'respect to the 'I bottom 6 ofthe box '3. The inclination ofv the major part 33-conforms to the inclinationof the bevelled lower edge of the plate I 10. The ylower face' of the major at its rearaligns with the bevelle lowerl end 11 of the front wall 7 of the box 3. The part 34 of the slice member is positioned or pocket 15 formed by the mortise 13 and front wall 7 of the box 3'. The part34 abuts art 33 'within the mortise 13, or rather in the socket against the rear face of the plate 10, by the holdfast devices 35. The bottom edge of the plate 10 abuts against the upper face of the major part 33, at the rear thereof.

Fixedly secured/to the upper face of the major part 33, of the slice member 32, in proximity to the 'forward edge of said part 33, are spaced, upstanding yoke-shaped brackets 36, and into each of said brackets extends the lower end 37, of an adjusting rod 38 and with the latter disposed at va rearl ward inclination from its lower to its upper end. The lower ends 37 of the adjusting rods 38 are pivotally connected to the brackets 36, by the pivots 39. The upper portion of each of the rods 38 is peripherally threaded as at 40. Each rod extends upwardly through an opening 20 in the ridge 19. Carried by each rod 38 is an upper and a lower combined adjusting and binding nut- 41, 42 respectively, the former being arranged above the ridge 19 and the latter below said ridge. The nut 41 at its upper end is formed with an annular flange 43, and the nut 42 at its lower end with an annular flange 44. The flanges have their edges knurled and provide means for conveniently turning the nuts on the rods, for the vpurpose of vertically adjusting the rods.

The slice member 32 extends from one end wall 5 to the other end wall 5 of the box 3 and the angle of the part 33 of said member, relative to the upper face of the bottom 6, can be varied by adjusting the rods 38. The slice member can be adjusted, relative to the bottom 6, at various points, throughout its length, due to the fact that the adjusting rods 38 are disposed in spaced relal tion throughout said slice member and can be vertically adjusted. The openings 20 are of a diameter whereby the rods v38, when adjusted, can be shifted to varying rearward inclinations, when desired. The plate 10, adjusting rods 38 and the slice member 32 can be bodily adjusted vertically by the adjusting members 27, engaging with the threaded walls of the openingsdn the arms 21. The adjusting members 27 maintain the v ridge stationary and in set position. The

guide members 17 slidably connect the plate 10, against the forward face of the front wall 7 of the box 3. The openings 20, and the ridge 19, are arranged rearwardly wlth respect to the yoke-shapedbrackets 36.

The construction and arrangement of the slice member 32, forms a smooth unobstructed passage forthe pulp or stock and overcomes the forming of eddies and the gathering of the pulp as it travels in the direction of discharge towards and onto the making wire 2. The angular dispositions throughout of the majorportion 33 of the slice 32, with respect to the bottom 6, prop vides an unobstructed passage and permits the stock to go under the slice with almostv absolute freedom from lumps or voids, and under such conditions the gathering ofthe pulp at such point is prevented. When the pulp is obstructed, eddies are formed and the pulp gathers and has to be freed by manual means, and this results in the retardation of operation of the machine. The objections pointed out are overcome by the construction and` arrangement of the slice as aforesaid, and therefore the slice vprovides for an increase in output with respect to the machine, without an increase in the cost of maintenance, therefore it is thought that the many advantages of an adjustable, flexible slice, in accordance with this invention and for the purpose set fort-l1, can be readily understood, and although the pre# ferred embodiment of the invention is as illustrated and described, yet it is to be understood that changes in the details of construction can be had which will fall within the scope of the invention as claimed.

`What I claim is 1. In a slice for paper making, a vertical disposed, slidably connected plate, a slice member connected to the lower portion of said plate and having its major part projecting forwardly from said plate at a downward inclination, upstanding, angularly adjusting means for and pivotally connected to said major part of said member and slidably connected with said plate, said adjusting means carrying elements coacting with the plate for maintaining the adjusting means in set position, and means connected with said plate for vertically adjusting it and for maintaining it in adjusted position.

2. In a slice for paper making, a vertically disposed, slidably connected plate provided at its top with a forwardly directed ridge, a slice member having the major portion thereof disposed at a downward inclination and its other portion iixedly secured to the lower end of said plate, inclined adjusting hars for the inclined portion of said member, said bars pivotally connected at their lower ends to said inclined portion and having their upper ends extending through said ridge,

means carried by said bars for vertically adjusting them, said means coacting with said ridge for maintaining said bars in adjusted position, and means for vertically adjusting said plate and for maintaining it in adjusted position.

3. In paper making machines of that type including a pulp box having its bottom and top arranged to provide an opening` or out! let at the lower portion of the front thereof for the discharge of the pulp, the combination of a unitary slice member positioned over said bottom for controlling said outlet, said member including a vertically disposed art and a part extending forwardly from the latter and at an obtuse angle with respect to said bottom, said obtuse angled part,in

transverse cross section, .extendn nin the latter, saidmeans and elements having cosame plane throughout, vertically a Justable acting means for retaining said elements in supporting means connected against the 'front adjusted position.

of said vertical part, and angularly adjust- -In testimony whereof, I aix my'signature 5 able elements for and pivotally connected to hereto.

said obtuse angled part and slidably connected to said means forwardly 'from the PHILLIP J. LAMoUREUX.

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