US1253676A

US1253676A - Machine for manufacturing plaster-board.

Info

Publication number: US1253676A
Application number: US165615A
Authority: US
Inventors: Edmond H Fishack
Original assignee: Individual
Current assignee: Individual
Priority date: 1915-01-11
Filing date: 1915-01-11
Publication date: 1918-01-15
Anticipated expiration: 1935-01-15

Description

E. H. FISHACK. MACHINE FOR MANUFACTURING PLASIER BOARD APPLICATION FILED JAN. II. 1915.

INVENTOR,

3 SHEETS-SHEET I- Patented Jan. 15, 1918.

WITNESSES,"

ATTORN EY E. H. FISHACK. MACHINEFOH MANUFACTURING PLASTER BOARD.

APPLICATlON FILED 11111.11. 1915. v

' Patented Jan. 15; 1918.

s suns-saber 3.

ZTJI. 2 25M ATTORNEY INVENTOR,

EDMOND H. FISHAGK, OF GYPSUM, OHIO.

MACHINE FOR MANUFACTURING PLASTEB-BOARD.

Specification of Letters Patent.

Patented Jan. 15, 1918.

Application filed January 11, 1915. Serial No. 1,856.

To all whom it may concern:

Be it known that I, EDMOND H. FISHACK, a citizen of the United States, residing at Gypsum, in the county of Ottawa and State of Ohio, have invented a new and useful Machine for Manufacturing Plaster-Board, of which the following is a specification.

This invention has reference to improvements in machines for manufacturing plaster board, and its object is to provide a machine for the expeditious manufacture of plaster board.

In accordance with the present invention the machine is so constructed that the boards when manufactured are confined under pressure while setting; the boards are produced successively in the form of a pile upon a support arranged to be loweredfiintermittently to extents determining the thickness of the boards; means are providedwhereby the boards are formed in a casing or mold which may be in part collapsed or removed, so that the complete pile of boards may be taken out of the machine at one operation, and this may be further facilitated by the construction of the lowering support in the form of a car capable of being moved into and out of the machine upon suitable tracks. The invention also contemplates the use of separating) sheets for the boards, which sheets may e so constructed as to form the surfaces the invention also contemplates the application of power for producin the requisite pressure in a manner to limit the pressure to apredetermined amount.

The invention will be best understood from a consideration of the following de tailed description, taken in connection with the accompanying drawings forming a part of this specification, with the further understanding that while the drawings show a practical form of the invention, the latter is not confined to any strict conformity with the showing. of the drawings, but may he changed and modified so long as such changes and modifications are .within the scope of the appended claims.

In the drawings Figure 1 is a front elevation of a-machi'ne embodying the present iny'ention.

Fig. 2 is a side elevation thereof as seen from the left hand side of Figr l.

Fig. 3 is a central vertical section of the machine as viewed in Fig. 1.

of the boards into desired shapes, and

' beams 14 and end Fig. 4 is a section on the line 4-4 of Fig. 2.

Fig. 5 Fig. Fig. 6 is a bottom plan view of the car constituting the lowering support.

Fig. 7 is a fragmentary section of one of the division plates drawn on a much larger scale than the other figures of drawing.

lVhile in many of its'details the machine of the present invention may be variously constructed, a sim 1e and -eilicient construction is illustrated in the drawings. There is a main frame made of upright corner posts 1 with top and

bottom cross beams

2, 3, respectively, all of which may be made of structural steel, and preferably channel or other angular steel. Supported on the bottom beams 3 are closely adjacent spaced beams 4: also of channel steel, and these beams carry a bearing 5 on which is mounted a bevel pinion 6 axially screw threaded for the passage of a screw rod 7, which latter is located in the central vertical axis of the frame. This rod carriesat its up er end a head 8 of suflicient lateral extent or a purpose to be described. In describing the screw rod 7 as upright and in all other expressions of position used herein reference is had to an installed machine.

The corner posts 1 carry other cross pieces 9 upon which are placed track rails 10 for receivin the wheels 11 of a truck 12 shown separate y in Fig. 6, and this truck comprises a platform 13 .sup orted by marginal side ams 15, and these last named beams carry journal boxes 16.. for axles 17 in turn carrying the wheels 11. Extending between and fast to the side beams 14 are intermediate cross beams 18 suitably spaced apart to be both engaged by the head 8. The beams 4 carry a journal standard" '19 supporting a journal bearing 20 for a shaft 21 which extends from a point adjacent to the rod 7 to the exterior of the main frame where it is journaled in a suitable bracket 22. At the end next-to the rod 7 ,the shaft 2lioarries a bevel pinion 23 in mesh with the pinion 6 and at the outer end the shaft 21 is provided with means for its actuation which may be in the form a hand crank 24 or any other means may be employed, and the crank 24 is therefore to be taken as indicative of either hand means or power means for the turning of the pinion is a section on the line 5-5 of 6, which, being in the form of a nut, causes the raising or lowerin of the rod and with it the head 8, and w en a truck 12 is in position to have its cross beams 18 engaged by the head 8, then on the rising movement of the rod the truck is lifted to the extent desired.

Extending between appropriate cross beams 2 at the top of the frame are spaced 19 beams from which depend hangers 26 carrying other beams 27 at their lower ends.

At about midway of the len h of the beams 25 there is secured a bloc 28 forming a thrust block for a bevel gear 29 traversed 5 by an upright screw rod 30 located in the upright central axis of the frame and' in alinement with the rod 7. The beams 27 carry journal bearings v31 for res

ective shafts

32, 33, each having a bevel pinion 34,

20 35, respectively, in mesh with the gear 29. These

shafts

32 and 33 each pass through a journal bearing 36 mounted on a cross beam 37 at each end of the main frame, and near the top thereof. Exterior to the main frame 5 the shaft 32 carries a clutch member 38 and the shaft 33 carries a similar clutch member 39. Each of these clutch members is what is known as a friction release clutch, and since such structuresare readily obao vtainable upon the market, it is unnecessary to show or describe them in detail. .In action they operate until the resistance reaches a predetermined point when theyno longer drive the driven member.

The rod 30 carries-at its lower end a follower 40 having laterally outstanding arms or brackets 41 on opposite sides each terminating in an eye 42 slidable along a guide rod 43 mounted between respective pairs of 40 corner posts and supported at the upper ends in the beams 37 and at the lower ends in other beams 44 similar to the beams 37, but located at a correspondingly lower level. The ends of the rods 43 may be held in 46 blocks or supports 45 made fast to the respective beams.

' Extending between the corner posts in parallel relation to the beams 44 are other beams 46, these last-named beams bein I a 60 proximately on a level with the top 0% tl fe car or truck 12- when supported upon the rails 10. I

Made

fast tothe beams

44 and 46 on one end of the main frame is a. plate 47 forming one end of a mold and made fast to these same beams and .the corresponding beams at the other side of the frame is another plate 48 forming dne side ofthe mold.

The other end and side of the mold are j formed by other

corresponding plates

49 and 50, respectively, but neither of these plates is made permanently fast to the frame. The four plates when assembled constitute a rectangular mold open top and bottom and of a size and shape to readily but snugly receive the platform 18 of the car or truck 12, so that this platform or support, together with the remainder of the car may be elevated inside of the mold to the top thereof by a suitable mani ulation 7U of the shaft 21, thereby impelling t e screw nut 6 to raise the rod 7 and with it thehead 8, and the truck or car su ported thereby, said car being indicative of any other suitable movable device.

The

beams

44 and 46 adjacent to the end plate 49 of the mold carry cam members 51 each provided with a handle 52 and movable about a pivot pin 53, and these cam. members are so related to the end plate 49 00 of the mold that they may be moved to clamp this plate tight against the corresponding face or

side members

48 and 50, the latter being rooved, as indicated at 54, to firmly seat t e edges of the end plate 49. Extending between the corner posts of the corresponding side ofthe main frame to the end plate 49 are supporting bars 55 upon which the lower edge of the end. plate 49 may rest. Mounted upon pivot pins or bolts 0 56 traversing the flanges of the corner posts 1 adjacent to the face plate 50 of the mold are cams 57 each provided with a manipulating handle58 and so related to the mold plate 50 that on a proper manipulation of the cams the mold plate is firmly lodged against the

end plates

47 and 49. The end plate 50 is furthermore provided with chains 59 each fastened at one end to the plate and at .the other end terminating in a pin 60, while the follower 40 has holes 61 formed therein. in position to receive the pins 60 for a purpose to be described.

In Fig. 3 the mold chamber is shown as filled by a pile or stack of plaster boards 62, and these boards are shown as separated by plates 63, one of whichis shown in Fig. 7 as corrugated. These plates are preferably of metal, of which tin or galvanized iron may be takenas an example, and the corrugations may be taken as indicative of any lndentations or figures formed on the plates to be impressed in the corresponding faces of the plaster boards.

Let it be assumed that the mold chamber I is empty, and that the end' plate 49 of the mold chamber has not yetbeen clamped in 7 place, and that the face plate 50 has been raised by the elevation of the follower 40 with the pins 60 of the chains 59 in the holes 61, the clamp cams 57 being also in the loosened or disengaged position. Now, the car or truck 12 is moved upon the tracks 10 until within the space defined by the mold chamber at the lower end thereof, after which the follower 40 is lowered until the face plate 50 has reached its lowermost osition which may be determined by the Bar 55 and a stop 64 on a level with the bar .55. The earns 51 and 57 are manipulated means for the shaft 21 is operated to cause the head 8 to enga e the beamslS and elevate the car or true until it is spaced from the top of the mold chamber by a distance e ual to the proposed thickness of the laster board, the follower 40 having been 111 the meantime raised sufiiciently to be out of the way. A plaster board is now formed in the top portion of the mold upon the platform13 and a division late 63 is laid upon the formed board, a ter which 'the truck is lowered a distance corresponding to the thickness of the next plaster board.

This 0 eration of lowering the support suc is applied by the follower 40 as needed and oessive y by predetermined distances and the introduction of. the separating sheets continues until the mold is filled with plaster boards and the se' arating sheets, the showing of the latter 3 for the purposes of illustration. Pressure when the mold chamber isfilled with plaster boards, the pressure is maintained until the pile of plaster boards has set. The pressure of the follower 40 may be regulated to a nicety by the em loyment of releasing friction clutches WhlCh roduce a pressure to thefpredetermined point, and then maintain it thereat without increase of the pressure.

The screw 7 and the driving means for the screw may be so arranged that one or two or a certain predetermined number of turns of the shaft 21 will produce a movement of the lowering support equal to the desired thickness of the plaster board.

When the pile of plaster boards has become set the

cams

51 and 57 are released and the pins 60 are introduced into the holes 61, whereupon the follower 40 is elevated, the face plate 50 ofthe mold being lifted with it out of the way of the truck or car and the pile of plaster boards thereon, while the side member 49 being released from the cams controlling it offers no impediment to the removal of the car with the pile of plaster boards from the mold, and then another ported to a desired point and unloaded.

By the present invention pla ster boards may be made successively of even thickness and consistency and may be permitted to set and harden while under pressure, so that I when released from such pressure they will retain the form imparted to them. The space wherein the plaster boards are molded is always at the top of the mold and unifornnthis being accomplished by'a predetermined lowering of the support for the plasterboards so that there is ultimateh formed a pile made up of plaster boards all of the same thickness. The collapsible mold permits the formation of thepileof boards ing exaggerated in Fig.

,a determined degree while the support L9 in a minimum space and their removal without the necessity of further lowerin or of raising the pile after completion. y separating the plaster boards by metallic sheets to which they do not adhere each board'is separated from the others, and, furthermore, any configuration desiredmay be imparted to the surface of the board. A predetermined pressure is important and this is advantageously brought about by the use of the releasing clutches which permit the quick operation of the device without leaving the matter of proper pressure to chance or the judgment of the operator of the machine, for the pressure may be fixed by the so preadjustment of the automatic releasing friction clutch.

What is claimed is 1. In a machine for manufacturing-plaster board, an upright fixed mold open top and bottom, a support of a size to enter the mold and movable laterally beneath the mold into and out of alinenient therewith, means for bodily raising the support from a position below the mold into the mold through the open bottom thereof and for raising and the mold into and out of alinement therewith, means for movin the support bodily lengthwise of the mol through the open bottom thereof, a. follower movable into and out of the mold toward and from the support whenthe latter is in the mold, and means for applying pressure to the follower and automatically holdin such pressure to I19 maintained in a fixed position.

3. In a machine for manufacturing board, an upright fixed mold open top and bottom, a car or truck movable laterally with respect to the mold into and out of underlyin relation to the open bottom" of the mol and means for raising and lowering a the car or truck bodily to varying extents up and down within the mold, whereby a stack of superposed articles may be formed in the mold with the car constituting a sup-v port for such stack and each article constituting a support for the next article above it. 4

n a machine for manufacturing plaster board, an upright fixed mold open top andl25 bottom, a car or truck movable laterally with respect to the mold into and out of underlying relation to theo 11 bottom of the mold I and of a size to dily enter -the mold through the open bottom thereof, means for moving the car or truck Bodily up and down in the mold, whereby the car constitutes a support for articles formed in the mold, and a follower movable into and out of the mold through the open top thereof in oppositlon to the car or truck. v

. 5. In a machine for the manufacture of plaster boards, an upright fixed mold open top and bottom and ofa capacity to hold a pile of plaster boards, a' supporting frame for the mold,-a support for the boards movable laterally with respect to the length of the mold into and out of coincidence with the bottom of the mold, said support being of a size to move into the mold through the open bottom thereof, means for moving the support for the boards to varying extents lengthwise through the mold, whereby the through the mold lengthwise of the latter plaster boards may be successively formed in superposed order'within the .mold upon the support, a follower carried by .the supporting frame for the mold and provided with means for moving said follower into the mold through the top of the latter against a pile of plaster boards on the suport for said boards while the su port is lield stationary, and means carried by the supporting frame for the mold for applying pressure to and automatically maintainin a predetermined pressure against the pie of plaster boards within the mold until I the plasterboards have set.

6. In a machine for the manufacture of plaster boards, a mold of a capacity to hold a pile of plaster boards, a support movable and provided with means whereby the support may be moved by steps for the formation of the boards successively in the mold to roduce a pile thereof on the sup ort, a fol ower movable into engagement with the topmost one of the plaster boards and auto- 1 matic means for applying a predetermined pressure through the ollower to the plaster boards and holding such pressure until the plaster boards have set. V

In a machine for manufacturing plaster board, a mold open top and bottom and havdown of the mold, a

and out of the upper end of the mold toward the mold, and means removal of the side truck conforming in size to the cross-sec ing one 'side removable, laterally into and out of the mold through the "space provided for by the removable side, means for movin the support up and ollowermov'able into and from the support when the latter i in for applying pressure to" the follower and automatically holding such pressure to a predetermined degree.

8. In a machine for manufacturing plaster one side removable, a 7

board, a mold havin car or truck movabli into and out of the mold through the opening provided by; the of the mold, said car or tional area of the mold, and means for mova support movable ing the car or truck in the mold in a direc tion perpendicular to its movement into and out of the mold through the open side of the latter.

9. In a machine for manufacturing plaster board, a mold havin one side removable, a car or truck movab einto and out of the mold through the openin provided by the removal of the side of t e mold, said car or truck conforming in size to the cross sectional area of the mold, means for moving the car or truck lengthwise of the mold,

and a follower movable into the mold in opposition to the car or'truck.

10. In a machine for manufacturing plaster board, a mold having one side removable, a car or truck movable into and out of the mold through the opening provided by the removal of the side of the mold,

saidcar or truck conforming in size to the cross sectional area of the mold, means for moving the car or truck lengthwise of the mold, a follower movable into the mold in opposition to the car or truck, and automatic means for exerting pressure upon the follower to a predetermined extent.

11. In a machine for manufacturing plaster board, a mold, a car or truck of a size to enter the mold, and means for moving the car or truck to various extents lengthwise of the mold. I

- 12. In a machine for manufacturing" plaster board, a mold having adjacent portions movable toward and from the molding space and one of said portions removable from the mold, means for holding the removable members in position against internal pressure in the mold, a car or truck movable laterally into and out of the mold through the space provided for by the 're-, movable member, means for'moving the carq or truck lengthwise of the mold, and a follower movable into and out of the mold in opposition to the car or truck.

13. In a machine for manufacturing plaster board, a mold having two adjacent portions movable toward and from the molding space, one of said portions being removable from the mold, a car or truck movable into and out of the mold through the space provided for by the removable member, means for moving the car or. truck lengthwise of the mold by steps each corres onding to the thickness of a laster board? means for locking the movable members of the mold inposition against the action ofpressure exerted against them from the inside of the mold, a follower movable into and out of the mold in opposition to the car or truck, and means for applying and sustaining pressure upon the follower v against plaster board sustained by the car of truck, said pressure applyin means being constructed to automatica 1y produce the pressure to a predetermined degree.

14. In a machine for manufacturing plaster board, a mold chamber having a removable side member, a follower adapted to enter the mold chamber, and means for connecting the removable side member to the follower for the movement of the removable member away from'the mold chamber and the return of the removable member to the mold chamber.

15. In a machine for the manufacture of plaster board, a mold chamber, a bottom member for the mold chamber comprising a truck or car of a size to move bodily wholly into the interior of the mold, and means positioned to engage the truck or car when within the mold chamber and raise and lower it therein.

16. In a machine for the manufacture of plaster board, a mold having adjacent portions movable toward and from the mold chamber within the mold and one of said portions being removable from the mold, means for holding the movable mold members against the action of pressure exerted thereagainst from the interior of the mold, a supporting member for plaster boards movable into and out of the mold through the space provided by theremoval of the removable member, and means for raising and lowering the supporting member when within the mold.

17. In a machine for the manufacture of plaster board, a mold having adjacent portions movable toward and from the mold chamber within the mold and one of said portions being removable from the mold, means for holding the movable mold members against the action of pressure exerted thereagainst from the interior of the mold, a supporting member for plaster boards movable into and out of the mold through the space provided by theremoval of the removable member, and means for raising and lowering the supporting member when within the mold, said machine being also provided with a follower movable into and out of the top of the mold.

18. A machine for the manufacture (sf plaster board comprising a suitable frangpa the mold, a truck or ear movable on the track and constructed to form a supporting member when within the mold, and introducible into and removable from the mold through the space provided by the removal of the removable member, an elevatin and lowering means carried by the frame in position to engage the car and lift it toward the top of the mold, and lower it by successive stepscorrespondingto the thickness of a plaster board, a follower carried by the frame and movable into and out of the upper end of the mold, means for attaching the removable member to the follower, and pressure applying means connected to the fol lower for causing the latter to exert a predetermined maintained pressure upon the plaster boards within the mold until the material of the plaster boards is set.

19. A machine for the manufacture of plaster board, comprising a suitable frame, a mold carried by the frame with members in fixed relation thereto and other adjacent members in movable relation thereto, one of said members being removable from the mold, a track carried by the frame below the mold, a truck or car movable on the track and constructed to form a supporting memboard, a follower carried by the frame and movable into and out of the upper end of the mold, means for attaching the removable member to the follower, and pressure operating means connected to the follower for causing the latter to exert a predetermined maintained pressure upon the plaster boards within the mold until the material of the plaster boards is set, the movable members of the mold being provided with clamp means for holding them in operative position against pressure exerted on them from the interior of the mold. In testimony that I claim the foregoing as my own, I have hereto afiixed my signature in the presence of two witnesses.

EDMOND H. FISHACK. Witnesses:

, JOHN H. Smears, Enrrn L. BROWN.