US2284553A

US2284553A - Paper waxing machine

Info

Publication number: US2284553A
Application number: US315411A
Authority: US
Inventors: Bennett John
Original assignee: Individual
Current assignee: Individual
Priority date: 1940-01-24
Filing date: 1940-01-24
Publication date: 1942-05-26
Anticipated expiration: 1959-05-26

Description

May 26, 1942. J. BENNETT PAPER WAXING MACHINE Filed Jan. 24, 1940 Patented May 26, 1942 UNITED STATES PATENT OFFICE 2,284,553 PAPER wAxiNG MACHINE John Bennett, Passaic, N. J.

Application January 24, 1940, Serial No. 315,411

l 3 Claims.

My invention relates to new and useful improvements in a method of an apparatus for` applying wax to paper.

An important object of my invention is the provision of an apparatus for waxing paper that provides means for regulating the thickness of the coating of wax to be applied to the paper.

Another object of my invention is the provision of an apparatus of the above-mentioned character that is adapted to direct a web of paper through a. waxing vat and to thereafter pass the waxed paper through a cooling unit in a manner to harden the wax on the paper.

Still another object of my invention is the provision of an apparatus of the above-mentioned character that is constructed in a manner whereby very little of the web of paper will be unsupported during or between any of the waxing operations, thus permitting the paper to travel at a relatively high rate of speed.

Yet another object of my invention is the provision of an apparatus of the above-mentioned character that is simple in construction and that is uniquely assembled to promote a rapidand etiicient waxing of the paper.

Other objects and advantages of my invention will be apparent during the course of the following description.

In the drawing, forming a part of this specilication, and wherein like numerals are employed to designate like parts throughout the same,

Figure 1 is a side elevation, showing parts in section, of a device embodying my invention,`

Figure 2 is a top plan view, showing parts broken away, of my device,

Figure 3 is a vertical sectional view taken on the line 3-3 of Figure 1,

Figure 4 is a vertical sectional view taken on the line 4-4 of Figure 1,

Figure 5 is a fragmentary vertical sectional view taken on the line 5-5 of Figure 2, and

Figure 6 is a vertical sectional view taken on the line 6-6 of Figure 5.

In the accompanying drawing, wherein for the purpose of illustration, is shown a preferred embodiment of my invention, the numeral Ill designates a supporting framework including upright members Il arranged in a rectangular formation, which uprights are connected by spaced' parallel longitudinally extending beams I2 and transversely extending beams I3. The

web of paper I4 is taken from the supply roll I5 in the unwaxed state, passed successively through the waxing vat I6 and and cooling unit l1 and thereafter wound upon the winding roll I8. The supply and winding rolls l5 and I8 are provided with axles I9 and 20 which extend in bridging relation to the longitudinal beams I2 at opposite ends of the supporting framework, which axles are supported thereon by the journals 2l and 22.

The waxing vat I6 comprises a box-like recep-` tacle 23 having an open top and adapted to receive a supply of heated wax 24 through the supply pipe 25. A discharge pipe 26 communicates with the receptacle adjacent the top thereof throughthe opening 21 in a manner to accurately regulate and control the quantity of wax within the receptacle. The wax which overiiows through the opening 21 may be conveyed to a central container where it will again be introduced into-the receptacle 23 through the pipe 25. A steam coil 28 is disposed within the receptacle adjacent the bottom` thereof and includes an entrance pipe 29 and discharge pipe 30. The pipes 29 and 30 may be connected to any suitable steam line in a manner whereby live steam will be continuously caused to ilow .through the coil 28 to` heat the wax 24 within the vat. The end 3| of the receptacle is provided at its opposite sides with upstanding lugs 32 and the idler roller 33 is journaled therebetween in a manner to support the web of paper I4.

The web of paper extends from the idler roller 33 below the idler roller 34 carried by the arms 35 of the bellcrank levers 36. l Thearms 31 of the bellcrank levers are bridged by a`rod 38 the opposite ends of which are screw-threaded and extend through the arcuate slots 39 in the flanges 4I! extending from the sides of the receptacle 23, Nuts 4I are screw-threadedly received by the extending ends of the rod 38 in a manner whereby the b ellcrank levers maybe pivoted to position the idler roller 34 a desired distance below the surface of the wax within the receptacle. Pivotal movement of the levers will cause the ends of the rod 38 to traverse the slots 39 and, upon tightening of the nuts 4I, the levers will be securely held to position the idler roller at the desired depth.

The supporting bracket 42 bridges the receptacle 23 and with th'ecross member 43 disposed a substantial distance thereabove. The vertically disposed legs 44 of the bracket extend downwardly at opposite sides ofthe tank and are formed with spaced inturned flanges 45 which denne guideways for the vertically slidable U-shtipedv bracket 46. A rubber roller 41 is journaled between the depending arms of the sliding bracket 46 and the opposite ends of the roller shaft extend beyond the legs of the supporting bracket 42 through the elongated slots 48 to receive th'e circular gears 49. The hand-screw 50 is screwthreadedly received by the opening 5| in the cross member of the supporting bracket and the free 'end thereof is rotatably connected to the U-shaped sliding bracket 46, whereby rotation thereof will effect raising or lowering of the roller 41. The metal roller 52 is journaled within the receptacle23 between the opposite sides thereof and below the rubber roller 41. The extending ends of the roller shaft extend beyond the legs of the supporting bracket 42 and carry circular gears 53 in meshed relation with the circular gears 49. Y

vThe web of paper extends from the idler rollen 34 between the rollers 41 and 52 and the hand- .screw 50 may be actuated to move the rubber roller 41 into pressed engagement with the paper and in a manner to hold the paper in pressed engagement with the lower metal rollerv 52. Passage of the paper between the rollers will remove the surplus wax therefrom, which waxY will return to the receptacle 23.

It is obvious that very little `vertical adjustment between the rollers 41 and 52 will be necessary Yduring the-operation of the apparatus, and such adjustment as will be necessary will be relatively slight. Under `no circumstance will it be necessary to move the rubberroller sufficiently to disengage the

circular gears

49 and 53.

The cooling unit I1 includes an idler roller 54, which roller is of tubular formation, the ends of the tube being closed and having longitudinally extending Shanks 55 supported on the beams I2 of the supporting framework by the journalsv 56. -A liquid supply conduit 51 communicates with one end of the roller through the stuiling box 58, and the discharge conduit 59 communicates with the opposite end of the roller through the stuiing box 69, whereby a suitable cooling solution 6| may be continuously passed through the roller.

` tank, whereby a constant circulation of the so- `pare connected to the pulleys 96 onthe motor 'f The cooling unit I1 also includes an elongated` e cle and is adapted to hold a liquid refrigerant therein. A blower 80 is supported above4 th'e plate 64 and the "funnel-shaped hood 8| extends therefrom and vwith the peripheral edge thereof in slightly spaced relation with the plate, Whereby the blast of air from .the blower will be directed against the upper surface of the paper in a manner to hold the same in appressed relation with the plate. l Y

An inlet conduit 65 extends from the pump 66 and communicates with the receptacle adjacent the top plateA 64 at the highest nd thereof. The inlet pipe 51 extending from the idler roller 54, connects with the pipe 65, as illustrated in Figure 2, whereby cooling solutions from the pump may f :stretchedove'r the idler roller 92, and as the quanbe forced simultaneously through the roller and receptacle. 'I'he supply pipe 69 extendsfrom a cooling solution supply tank (not shown) of brine, Y or the like, to the pump, and the pipe 59, glischarging from the cooling roller 54, has the discharge pipe 1|) leading from the receptacle 62 connected thereto. The pipe 59 also communilution by the vpump 66 may be effected.

The brackets 1| are supported by the longitudinal beams I2 and maintain the transverse Vroller 12 slightly spaced from the end 68 of the of the motor 18. The Shaft 0f the roller 'l2 is provided with a pulley 82 and the blowershaft 83 is provided with a pulley 84 whereby the endeJ less belt 85, connecting. the pulleys 82 and 84, may impart rotation to the blower. The opposite ends of the shaft of the lower roller 52,

operating in the waxing vat I6, are providedwith pulleys 86, and the'endless belts 81 are trained thereabout and about` the pulleys' 88`carf red at the opposite ends of the shaft ofthe roller 12. The endless belt 89j connects the pulley 90 of the motor shaft and the pulley 9| ofthe pump, whereby operation of the motor'will impart rotation to the pump to effect the circula# the cooling' f tion of the coolingv solution Vthrough unit. V-

TheVA web of paper I4 extends from the roller 12 below the idler roller 92, journaled between' supporting the longitudinal beams yI2 of the frame, and to the winding roll I8.

The winding roll comprises'a shaft 20 oper- `7 ating within the sleeve 94. The opposite ends of the shaft are provided with pulleys which shaft by meansof the endless belts 91. "The `opposite ends of the sleeve 94 are formed with drums 98 and the portion of the shaft'2Ilf-exetending through the drums are provided with' a plurality of radially extending Shanks 99Hwhich slidably receive the sleeves |00 of the shoes IOI. The outer surfaces of the shoes are maintainedl in pressed engagement with` the inner periphery?k of the drums by the coil springs |02 tv effect av friction drivefor the winding roll.

The friction drive is necessary for the reason that the paper would tend to Wind more rapidlyV around the sleeve 94 as the roll .becomes larger y thereby forcing the web of paper to pass more rapidly through the ,waxing vat I6 and cooling unit I1.` The roller 12 will cause the paper to travel at a constant speed and rotation of the-` winding roll willkeep the portionV of the paper between the roller 12 and the winding roll tautly tity of paper on the winding roll becomes greater,

the springs |02 will permit slippage between the drive shaft k20 and the roll of waxed paper.

The operation of the device is as follows: The paper is rolled from the supply roll I5 and threaded over the idler roller 32, under ytheV adjustable idler rollers 34, between the rollersv 41` and 52, under the cooling idler roller 54, andover the plate 64 below the hood 8l of the blower. From the plate 64 the paper passes over v.the

drive roller 12 and under the idler roller 92' where it is connected to the winding roll I8.

The motor 18 will drive `the winding roll to wind the paper evenly and smoothly thereon. The motor will also drive the pump'66 to effect a continual flow o f cooling solution through the roller 54 and tank V|2, and the endless beltsv16 catesv with the central cooling.\so1ution supply 75 fwill drive the vacuum cup roller l12 to -feed the paper through the various units at a constant speed. As hereinbefore described the idler roller 84 may be adjusted to cause the paper to pass a requisite distance below the surface of the waxing solution thereby causing the same to remain within the wax for a desired period of time in a manner to control the thickness of the layer of wax applied to the paper. The rubber roller 41 may be adjusted relative to' the metal roller 52 to press the surplus wax from the paper, and passage of the waxed paper under the roller I will permit the cooling solution therein to harden the wax on the upper surface of the paper. The lower periphery of the cooling roller 54 is disposed slightly below the upper surface of the plate 64 in a manner to aid in holding the paper in pressed relation to the plate. The current of air generated by the blower B0 will be directed against the upper surface of the paper as it traverses the chilled plate 8l to dry and harden the wax thereon and to hold the paper in appressed relation with the plate.

The inclined position of the receptacle 62 assures Contact of the cooling solution therein with the bottom surface of the plate 64 at all times. The pump 66 is adapted to force the cooling solution continuously through the receptacle 62; however, if the pump should fail to supply a quantity of the solution necessary to maintain the receptacle in a filled condition, the surface of the liquid within the tank would be lowered slightly and then only at the elevated end 68. The paper will pass from the plate 64 onto the roller I2 in a substantially dried state and the friction drive hereinbefore described for the winding roll will assure the smooth even winding of the same about the said roll.

It is to be understood that the form of my invention, herewith shown and described, is to be taken as a preferred example of the same, and that various changes in the size, shape and arrangement of parts may be resorted to without departing from the spirit of my invention, or scope of the appended claims.

Having thus described my invention, I claim:

1. A machine for waxing paper of the type including a receptacle for heated wax and means for guiding the paper through the receptacle, a tank for cooling liquid having an inclined essentially elongated chilled flat top surface over which the bottom side of the waxed paper is drawn, a chilled roller disposed between the wax receptacle and the cooling unit and with the periphery thereof in intimate contact with the upper surface of the said paper for hardening the wax on the mentioned surface before the same contacts the tank, and means to direct a blast of air against the hardened wax on the top surface of the paper to hold the same pressed against the chilled top surface of the tank.

2. In a combination with machine for waxing paper of the type including a receptacle for heated wax and means for guiding the paper through the receptacle, a cooling unit comprising a tank having an inclined essentially elongated chilled nat top surface over which the bottom side of the waxed paper is drawn, means to direct a blast of air against the paper in a manner to hold the same in appressed relation with the chilled surface of the cooling unit, saidV means including a hood having a discharge opening of substantiallythe same size as the topV surface of the tank and the periphery of the hood being arranged in proximity to the top surface of the paper, and a chilled roller disposed between the wax receptacle and the cooling unit and with the periphery thereof in intimate contact with the upper surface of the said paper for hardening the wax on the top surface of the paper before the same is subjected to the blast of air from the said blower.

3. In a machine having means to coat a web of paper with wax, the improvement comprising an essentially elongated cooling tank inclined from the horizontal and including a chilled flat top surface adapted to have an intimate contact with one side of the waxed paper, a roller disposed at the end of the cooling tank remote from the waxing means, the periphery of the roller being provided with suction cups adapted to grip the paper and to pull the same across the chilled surface of the tank, means to direct a blast of air against the paper in a manner to hold the same in pressed relation with the chilled surface of the cooling unit, said means including a hood having a discharge opening of substantially the same size as the surface of the tank and the periphery of the hood being arranged in proximity to the top surface of the paper, and a chilled roller disposed between the wax receptacle and the cooling unit and with the periphery thereof in intimate contact with the upper surface of the said paper for hardening the wax on the top surface of the paper before the same is subjected to the blast of air from the said blower.

JOHN BENNETT.