US809832A

US809832A - Paper-making machine.

Info

Publication number: US809832A
Application number: US70917299A
Authority: US
Inventors: John Warren Moore; Joseph Atwood White
Original assignee: Individual
Current assignee: Individual
Priority date: 1899-03-15
Filing date: 1899-03-15
Publication date: 1906-01-09
Anticipated expiration: 1923-01-09

Description

No. 809,832. PATEN'I'ED JAN. 9, 1906;

J. W. MOORE & J. A. WHITE.

PAPER MAKING MACHINE.

APPLICATION FILED 12.15, 1m]

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No. 809,832. PATE'NTED JAN. 9, 1906. J. W. MOORE & J. A. WHITE. PAPER MAKING MACHINE.

APPLICATION FILED MABHIS, 1899.

Z SHEETS-SHEET 2.

UNITE STATES PATENT OFFIO.

JOHN WARREN MOORE AND JOSEPH ATWOOD IVHITE, OF PHILADELPHIA, PENNSYLVANIA.

PAPER-MAKING MACHINE.

Specification of Letters Patent.

Patented Jan. 9, 1906.

Application filed March 15, 1899. Serial No. 709,172.

.To all whom it may concern:

Be it known that we, J OHN WARREN MOORE and JOsEPn ATwoOD WHITE, citizens of the United States, and residents of Philadelphia, Pennsylvania, have invented certain Improvements in Paper-Making Machines, of which the following is a specification.

Our invention relates to certain improvements in paper-making machines of the type known as Fourdrinier machines, in which a making-wire is traversed over a frame which is agitated, the pulp being allowed to form on the wire in sucha manner that the fibers will knit together to form a sheet of paper.

The device is known as a continuous machine.

The object of our invention is to improve the construction of the machine for which we have obtained Letters Patent in the United States, No. 620,548, dated February 28,1899, the said invention relating particularly to certain details of construction of the shakeframe. I

In the accompanying drawings, Figure 1 is a side view of a Fourdrinier paper-making machine made in accordance with our inven tion. Fig. 2 is an end view of the same. Figs. 3 and 4 are detail views showing the means of suspending the shake-frame at the outer end. Figs. 5 and 6 are detail views showing the means which we preferably use in suspending the shake-frame at the center, and Fig. 7 is a View illustrating the detail construction of part of the shake-frame.

It will be understood that the invention rclates particularly to the Fourdrinier end of the paper-making machine-that is, the portion on which the paper-pulp settles to form a continuous sheet of paper.

Referring in the first instance to Figs. 1, 2, and 3 of the drawings, A is the fixed frame of a paper-making machine. A is a fixed standard, which in the present instance is independently mounted on the foundation, but in some instances may form part of the fixed frame. D is the shakeframe, having lower rails (Z at each side and upper rails d on each side. The upper rails form a continuation of the rails a on the fixed frame A and are secured at d to the fixed frame, as shown in Fig. 1. The rails (Z, as shown in Fig. '7, are

made up of two channel-beams placed back to back with sufficient space between them.

to allow for the passage of bolts and for the free movement of the intermediate suspension-plate described hereinafter. In the present instance the rails d are secured to the fixed frame by bolts (P, which can be screwed down tightly, so as to make a ri id connection between the rails (Z and the fixed frame. The members of the rail (1 are adapted to sockets a" in the fixed standard A and are rigidly secured to said standard by bolts (L The rails (Z d are connected together at intervals by tie-bolts (Z and columns (1*. The tiebolts pass through the columns and through the space between the two members of the rail (1, as clearly shown in Fig. 7 An end frame D is secured, as illustrated in Fig. 1, rigidly to both the upper and lower rails (Z d of the shake-frame, the upper rails being secured to the said end frame by bolts (1, and the members of the lower rails are adapted to sockets in the said end frame and secured thereto by bolts (1 Thus the entire shakeframe, consisting of the upper and lower rails and the end frame, is rigidly'connected. The rails owing to their length and texture can be readily flexed when the end of the shakeframe is vibrated. It has been found in practice that pivot-joints are objectionable. in paper-making machines and should be avoided where possible. The outer end of the shake frame is suspended from a fixed standard A by suspension-plates b 1). (Shown clearly in Fig. 2 and in the enlarged views of Figs. 4 and 5.) These plates are mounted on each side of the machine, as shown, and are secured in any suitable manner. In the present instance these plates are made of spring metal, and it has been found that the best results are obtained when a series of thin plates are used instead of one thick plate, since there is thus secured not only increased flexibility of the plates but also a greatly-extended life for the same. By prolonged use the single spring suspension piece ordinarily used at each side of the shake-frame ultimately becomes changed in structure, owing to the long-continued vibratory jarring to which said frame is subjected. From this cause-that is, the molecular change in structure-the tensile strength of the plate is materially diminished and the probability of its failure under the trying operating conditions is greatly increased. In order to avoid this fa1lure,we employ a laminated piece or series of plates, as illustrated, in which the elements are not mere duplicates of the single piece ordinarilyused, but are pieces of less individual area of cross-section than said single piece.

The whole plate, while usually being of about the same cubic contents as the ordinary single piece, is of greater tensile strength and flexibility than the same without the relatively short life and probability of failure noted above.

In Figs. 3 and 4 each suspension-plate is shown made up of three spring-pieces suspended from a bolt a having an eccentric portion a, this latter being-adapted to fit an opening in the suspension-plates and to an opening in the clamp-block a. The bolt has a head at one end, and a nut a"is turned on its bolt; but by backing ofl the nut the bolt can be turned so that the eccentric will raise or lower the plates, and thus raise or lower the shake-frame.

The lower end of the plates 1) is rigidly secured by a bolt (i to a bracket (1, forming part of the end frame D. From this it will be seen that the free end of the shakeframe is suspended from the standard by flexible plates, dispensing with all loose joints and bearings in this the vital part of the machine Intermediate suspension plates are preferably provided, especially on large machines, as clearly illustrated in Figs. 1, 5, and 6.

In order to allow for the vertical adjustment of the frame, the bolts 07, from which the suspension-plates b are hung, are vertically adjustable. The clamp-block a in the present instance extends over the top of the bearing A and has a set-screw a", so that when it is necessary to adjust the shakeframe the bolt a is loosened, and the shakeframe is adjusted by turning the eccentric- .bolts a, when the plate I) with its bolt will be raised, and after the adjustment is made the set-screw a is turned so as to bear upon the standard A The middle of the shakeframe is thus supported by the suspensionplates 6, which take a certain amount of strain ofi the plates 1). In the present instance the plates b pass through the space between the channel members of the lower rail d, as in Fig. 6, and are secured to a bracket d on the rail (1 by a bolt (1. The vertical adjustment of the shake-frame is provided for, as it is found that in certain classes of paper when the machine is running at a certain speed the shake-frame should be in certain positions to accomplish the best results.

i In some instances the eccentric-bolts a may be mounted in bearings in the shakeframe and the plates fixed rigidly to the standard, or where an extended adjustment is required the bolts (1 may be eccentric as well as the bolts a; but it is found that the construction shown in the drawings is preferable and sufficient for ordinary purposes. We do not in this application claim, broadly,

the means for vertically adjusting the shakeframe, as this forms the subject of a separate application filed on the 6th of March, 1897, Serial No. 626,346.

The shake-frame carries the breast-roll E, the Wire-carrying rolls 6, and the supportingrolls 6 for the return run of the wire and also the deckle-frame L and the deckle-straps L. The bearings for the carrying-rolls e are secured to the upper rails cl of the shake-frame. The breast-roll E is adapted to bearings e on the end frame D, and the supporting-rolls e are carried in bearings supported by thelower rails d of the shakeframe.

The making wire i passes around the breast-roll, over the carrying-rollse, over the suction-boxes 0, around the lower couch-roll, and on its return passes over the supportingrolls carried by the shake-frame to the breastroll. Thus it will be seen that the makingwire is carried partly by the fixed frame of the machine and partly by the shake-frame; but as the vibrating movement is so limited the wire will readily accommodate itself to this movement.

The breast-roll is so heavy and cumber-- some that it is a difficult matter to remove it from the machine when an old making-wire is to be removed and a new one substituted therefor. 1 In order to readily remove the breast-roll, two levers F F are mounted on the sides of the machine, and these are pivoted at f to a standard F. The long arm of each lever is so shaped at its end that when it is moved upward it will engage the trunnion of the breast-roll and lift it out of its bearing. Suitable mechanism for operating these levers is provided,which, as it forms no part of the present invention, will not be described. It will be understood that before the breast-roll is removed a number of the carrier-rolls are also detached and the saveall T, which is of the ordinary construction, is withdrawn, so as to leave the space clear for the removal of the old making-wire and the placing of the new making-wire.

We claim as our invention--- 1. The combination in a pap er-making ma.

chine, of a shake-frame having flexible side frames connected to each other, each of said frames consisting of upper and lower members, with means rigidly connecting the same whereby the upper member is carried by the lower member, standards having secured to them flexible suspension-plates attached to one end of the shake-frame, and a fixed member to which the lower members of the shakeframe are rigidly attached, with means for vibrating the shakeframe, substantially as described.

2. The combination in a paper-making machine, of a fixed frame, a fixed standard, a shake-frame consisting of upper and lower side members and an end frame, means for securing the members of the shake-frame rigidly together, a rigid connection between the lower side rails and the fixed standard, and a rigid connection between the upper side rails and, the fixed frame, means for supporting the free end of the shake-frame, and means for vibrating said end, substantially as described.

3. The combination of the shake-frame of a paper-making machine, consisting of upper and lower rails connected together, an end frame secured to the ends of the said rails, the lower rails being each made of two channel-bars, with a space between them, columns extending from the lower to the upper rails, tie-bolts extending through the upper rails and the columns and through the space between the channel-bars of the lower rails and means for supporting the said shake-frame, substantially as described.

4. The combination in a paper-making machine, of a shake-frame-having upper and lower rails, the lower rails made up of two spaced members, a standard, a flexible plate suspended from said standard and passing through the space between the members of the lower rails, and a bracketparried by the lower rails to which said flexible plate is clamped, substantially as described.

5. The combination in a paper-making machine, of a shake-frame having upper and lower rails, the lower rails each consisting of two members spaced, a bracket secured to each lower rail, a standard, a bolt adjustable in said standard, a flexible suspension-plate hung from said bolt and secured to the bracket onthe lower rails of the shake-frame, a clampblock between which and an extension of the standard the flexible plate is clamped, a portion of the clamp-block extending over the standard, and a set-screw by which the clampblock, bolt, and flexible plate can be raised to adjust the shake-frame, substantially as described.

In testimony whereof we have signed our names to this specification in the presence of two subscribing witnesses.

JOHN WARREN MOORE. JOSEPH ATWOOD WVHITE.

l/Vitnesses:

WILL. A. BARR, J os. H. KLEIN.