G. R. KNG.

- PLASTBR BOARD MACHINE.

APPLIoATwN rILBD Nov.1, 1908. BBHEWED JUNE 25, 1912. 1,036,125.

G. R. KING.

PLASTER BOARD MACHINE. APPLICATION FILED Nov.1e,190. Rmmwnn JUNE 25,1912.

Patented Aug. 20, 1912.

5 SHBETSf-SHBBT Z.

G. R. KNG.

YLSTER BOARD IVIACHIN.

APPLmAION ULEB Nov. 1e, 190B RBNEWED JUNE 25,1912.

1,036,125. Patented Aug,20,1912.

5 SHEETSMSHEET 3,

Il d @W l G. R. KING. BLASTER BOARD MACHINE. APPLICATION FILED NOV.18, 190B. RENEWED JUNE 25, 1912. 1,036,125, Patented Aug. 20, 1912.

5 SHEETS-SHBET 4 G. R. KXNG.

ILASTBP. BOARD MAGHINL.

APPLIUATGN FILED NOV.1l.1908 HENEWED JUNE 25.1912 1,036,125.

Patented Aug. 20, 1912.

SSHEETSSHEE'Y y mr uc |1110 a,

(ww n Nw Q Vi hwmoo Cri UMTED strafrnsf;BATENEOFFICE.

ononon n. me, or New tomen. Y.. lesslnoro .1. 3.1mm a eo., A ooarona'rronT usaran-Bonnin momma.

Spooioatlon of Lettera Patent.

Patented Ang. 20,1912.

Application tiled November 16, 1908, Serial No. 482,808. Renewed Jane 85, 1912. Serial No. 705,885.

To all whom it may concern.'

Bc it known that I Geonoa R. Kino, a citizen of the United tates, and a resident of the cit of New York county of Richmond, an State of New York, have made a new and useful Improvement in Plaster- Board Machines, of which the following is a specification.

he object of my invention is to provide a machine which will automaticall make plaster board in continuous sheets w ich are severed into the desired lengths and then removed from the machine. This object is accomplished by m invention one embofli ment of which is ascribed below, in which the various elements are assembled, coinbined and manufactured,- as above intimated.

More articularly this machine makes what is inown as a plaster hoard having paper on its outer and inner walls aiidcpla'ster next the aper and fiber sandwiched m between the ayers of laster.

For a more particu ar description of my invention, reference is to be had to the accompanying drawings forming a part hereof, in whici:

Figure 1 is a plan view of my improved machine. Fig. 2 is a side elevation of the `same. Fi 3 is an enlarged side elevation of a )oi-tion of the same. Fig. 4 is a sectiona view taken on the line 4-4 of Fig. 3, looking ,in the direction of the arrows. Fig. 5 is an enlarged end elevation of the plaster making part of the apparatus, and shows a scraper for cleaning a belt thereof. Fig. 6 is a sectional view taken on the liiie (fi-6 of Fig. looking in the direction ol the arrows. Fig. 7 is a side elevation of the plaster makin portion of the apparatus. Fi 8 is a p an view of the structure shown in Fig. 7. Fig. 0 is an enlarged lsectional view taken on the line 0 0 of lig. 7 looking in the direction of the arrows. I ig. 10 is an enlar ed elevation of a portion of the structure sown in Fig. 7, portions being shown in sections. Fig. 1l is a sectional view of the machine for making the plaster board, and shows mechanism for the edges so as to free the board from the machine except that it rests thereon. Fi 12 is a longitudinal section of a portion o the plaster board machine. Fig. 18 is a sectional view taken on the line 18-18 of Fig. 12, looking in the direction of the arrows.

Figs. 14 and 15 are side and end views respectivel of a paper roll and the parts connecte therewith. Figs. 16, 17 and 18 aredetailed views showing the mechanism for severing the straw board into slabs of definite length Fi 17 showingr the structure on the right o Fig. 16. Fig. 19 shows .a modified mixer for the plaster and water.

Throughout the various views of the drawings similar reference characters designate similar parts.

My machine 1 consists essentially of an endless carrier '2 which is provided with a paper supplying means such as a roll 3, a plaster supplying means such as an endless belt 4, a ber supplying means 5 whicls may be of any suitable form as an endless belt, a second plaster supplying means (5 which is also preferably an endless belt conveyer identical with the part 4, a second paper supplying means 7 which is preferably substantially the same as the means 3, compressing means 8 and 9, a second cai*- rier 10, a severing device 11, of any suitable form, not. necessarily a swinging saw as shown, and a table with a carrier 12 for removing the plaster board.

The endless carrier 2 and the parts connected therewith embody the principal pai-t of my invention. The carrier is provided at each end with a roller 13 mounted in suitable frame work 14 on which are also mounted the lower rollers 15 and the upper rollers 16, the upper rollers carrying the weight of the conveyer and its load and the lower rollers 15 serve merel to sustain the weight. of the conve er while inoperative on its return run. 'llie rollers 15 Sliig. 4) are reduced in diameter at their ein s l? so as to receive the tlickeiied edges 18 il the conveyer 2. These edges 18 are made of the same thickness as the plaster board and run parallel, and separated from each other the width of the board. 'Ilic conveyer 2 is made suliciently long to permit the devices above mentioned to be )laced in ixoper relation thereto. lt may be oiiger if eslred and ma be run at any desired speed, rovidin t at the plaster does not set until after t e board is passed from iiiider the rollers 8. The (paper siipplyino means 8 consists of an or inary paper ro 19 mounted in the conventional manner and suitable standards 20 adjacent to the end of the conveyer 2, as shown in Figs. l and 2 soif'tha't the paperoVV i placed, upon thebel as ,soon-as," its'upperrum.

'.Thoj plaster is appliedein'a proper c'ondi'f tionand placed on the pa er fromthe irolll 19 by thelconveyer 4 whic will" now be de-N scribed, together with theI parts in combination therewith. The conveyor 4 'is 'mountedf onsuitable rollers 21 carredb 5 any suitable 'support-s 22 in theconventiona manner, and

on its' upper run-the oonveyer 4 is supported by.. suitable rollers-23 mounted as shown `in Digs.v 7, 8, 94 and 10. That is, some rollers 24 are'mounted each on .a horizontalaxis, and others 25.are mounted each on an inclined axis so as-to elevatethe edges ofthe beltf'and make. a suitable water-holding recfptacle of the same throughout a portion o its u per run. As shown in Figs. 7 and 10 the ast two rollers 23 are elevated and the tirst roller 25 has its lower edges deressed below the roller 24 at the extreme eft of these figures. This construction makes the belt form what might be called a trough during a portion of its u per run.`

The lower and rearward' run ci) the belt 4 is over the lower rollers 26 which are mounted in any suitable .manner in the frame 22.

Immediately above the rear roller 21 and supported by any suitable means, not shown, is a trough 27 provided .with a suitable spiral conveyer 28 in the trough 27 in the conventional manner and over the medial line of the belt 4 is a spout 29 running from the trough 27 so that the plaster powder such as plaster of Paris may be conveyed in the trou h 27 by the conveyer 28 and deposited tirough the spout 29 on to the belt 4 in any desired quantities. Immediately in front of the s out 29 is a rack 30 mounted by any suitab e means, not shown, and rovidcd with a serrated lower edge 31 w lich has the function of distributin the laster evenly over the belt 4. The be t un er the rack 30 is practically horizontal and a little beyond this on its orward run it is made trough-shaped, as shown. Near the beginning of its trough-shaped portion and over the same isa pipe 82 connected with any suitable source of water su ply. This pipe 82 is preferablv vertically disposed in its upper portion an it is also provided with a float valve 33 which will govern the water flowing on to the belt 4 when the apparatus is in use. The float 33 then rises on the water in the trough-like portion of the belt 4. This trou hike portion is made sutiiciently long to tioroughly hydrate the plaster of Paris, which passes from this in a thoroughly hydrated condition over the forward roller 21 and clings to the belt over this roller until it strikes a scraper 35 which consists of a horizontal late 36 mounted on a bell crank lever B7l fu crumed at 88 in any .suitable manner and provided wlth a weight y39,.Which isjixed toene arm of the lever 37, ptheplate' tib'eingfixed tothe other. The lplaster". in its hydrated condition while it is stillgsoft slides from the plate 36 to the pager from the roll 19 on the conveycr 2, an sfliquid enough to settle on this paper between the uides 18 at each side of the conveyer 2. 'This plaster then passes on the paper as above described, to the means 5 for supplying ber,vwhich fiber is distributed over'I the vplaster evenly and with the required thickness. This means 5, instead of being a belt, may be a table or anything else y means of which the hair may be fed by hand and over the plaster. The belt. 2 with its contents then passes under the seeond plaster carrying belt numbered (l which with its cooperating parts is identical with the belt 4 and its coperating parts so that a further description is unnecessary. Under this belt 6 the fiber receives a second coat of plaster in a hydrated condition, which plaster spreads itself evenly over the fiber.

From the second plaster distrilaitingr means 6 the belt 2 nieves on with its contents undcr the paper from the paper-supplying means 7. The lmper-supplying means consists of a standard 40 similar to the standard 20 and a paper roll 4l identical with the pa er roll 19 and the paper 42 from this rol passes under the roll 43 which is (parallel with the conveying rollers 1G, an this roller 43 distributes the paper evenly and correctly for the top layer of plaster deposited by the l'iydrater (i. Other rollers 44, parallel to the rollers 1G and i3 further press the paper 42 and the rest of the plaster board beneath the same into a close and compact union and the plaster then becomes set and then passes forward with the belt 2 to the compressing and niarking rollers 8 and give the board its tinal shape and inish. The paper roller 45 is provided with a projection iti which niarks the board into slabs of a predetermiiwd length, or nearly severs the boa rd as desired. This marking is for the purpose of eonvenience in handling and is not necessarily the final severing as will appear below.

The slabs of plaster board are ieparated from the edges 18 in the following manner: 47 are rollers set at an angle to the horizoninl IIS Seen in Fig. l1, the lowet roller 4S having conical ends so that. the edges of the belt 2 are bent down as shown when passing between said rollers. The. belt -l is made. trouv'h shape and resumes its flat' condition on t ie lower run while it is inoperative. lts elasticity permits it to do this. The belt 2 is flat except when its edges are, llexed to release it from the plaster board. As intimated above, the conveyor 2 should be long enough to permit the plaster to set. sufficiently and permit the board to pass trom the conveyer 2 to the conveyer 10. lf this is the case the belts may be run continuously. Otherwise it must be run intermittently to give the plaster sutiicient time to set. The table is a plain conveyer mounted as the convcyer 2 and the same in all respects except that it is preferably shorter and the thickened edges 1S are omitted. The forward run of this conveyer 1J 10 is manually controlled and at a higher cach slab is fed to its proper position it; is

severed by the saw 11 mounted on a suitable arm 57 guided by parallel guides 58 and p'ivotcd at its upper' end by a pin 59 held in a bracket ($0 in any suitable manner.

The saw 11 may be driven by any suitable means, as an electric motor (31, and is given a sufficient diameter to permit. the saw to -cut clean through the slab from edge to edge without having the motor (51 come in .30 contact with its upper surface. If desired the arm 57 may be made telescopic for this purpose. The table 12 is provided with suitable rollers (32 driven by gears (i3 which in turn are driven by a crank 64 or other 35 suitable means in the same manner as the gears 53 with a suitable stop G5 which is set in -accordance with the length of the slab to be severed. the distance from the stop 65 to the saw 11 being the length off/the slab.

From the hand-driven rollers (r2 the severed slab passes to the power driven rollers or other suitable ronvevers which carry it as desired.

In view of the foregoing, the operation of my improved plaster board machine will be readily lllul'u-stoml. Assuming that the parts of the machine are as shown in Figs. l and '2, paper from the roller 19is first run under the plaster supplyingr conveyer 4 which conveys plaster on said paper as above described. The paper and plaster then pass by the table 5, where fiber is placed on the plaster and then the paper with its supply of plaster and fiber is then fed to the second plaster-supplying means 6 where a second supply of plaster is had, as above described, then the paper with its load passes to a second paper Supplying device 7 and thence under the marking and pressing rolls 8 and e0 44 to the rolls 9 and from thence to Vthe table 1G wherel the slabs are severed with the aid of the saw 11-and passesaway from the apparatus from the Itable 12 as above described.

rlhe structiil shown in Fig. 19 is a modified mixer which is the same'as the mixer shown in Fig. 9 except that the scraper 30 is dispensed with and a corrugated roller substituted in lieu thereof. This roller is 'mounted in suitable bearings 71 on the frame 2:2 and is rotated by means of a pulley 72 on the shaft 73 of the roller Tt). This pulley 72 may be driven by any suitable means, not shown. The rotation of this corrugated roller 70 will distribute' the plaster evenly over the belt 4.

It is obvious that my invention is not restricted to the exact form abovedescribed, but is broad enough to cover all structures that come within the scope of thc annexed claims.

lhat I claim is:

1. In a device ofthe character described, a plaster supplying mechanism embodying au automatically, tloatably controlled hydrating device and a belt, with means for forming a trough portion in said belt, said trough portion being adapted for coperaltion with said hydratingdevicc.

2. In a machine` of the class described, an endless conveyer, means for delivering paper on said conveyer, means for placing p aster on said paper, an .automatically controlled hydrating device for said plaster, buoyant means for governing said device, means whereby fiber may be placedon the plaster, means for placing more plaster onthe fiber, nica/ns for placing paper on said last mentioned plaster whereby a plaster board is formed and means for shaping said plaster board before the plaster sets.

3. In a machine of the class described, au endless conveyor. means for delivering paper on said conveyer, means for placing plaster on said paper, an automatically controlled hydrating device for said plaster, buoyant means for governing said device, means whereby fiber may be placed on the plaster, means for placing more plaster on tfhe fiber, means for placing paper on said last nieutioned ilaster, and means for shaping and means or marking said board as it is formed progressively;

4. In a machine of the class described, a conveyer, means for placing thereon a paper band, means for placing plaster thereon, au automatically controlled hydrat-ing device for said/ plaster, and means for severing the formed plaster board, said hydrating device being automatically controlled by the risc and fall of the liquid.

5.111 a machine of the class described, a conveyer with means for placing a web thereon, means for supplying )laster to said web, an automatically cont-rol ed hydrating device for said plaster, said hydrating device being controlled by the rise and fall of the water, means for supplying a second lot of plaster after the ber has heen supplied, 'mcansfor supplying paper on said last mentioned plaster whereby a plaster board is formed.

C. In a machine of the class describeda conveyer with means for placing a web thereon, means for siil'iplying plaster to said web, an aiitm-:at'ieally controlled hydratiiig device for said plaster, said hydrating device being controlled by the rise and fall of the water, means for supplying-a Second let of plaster after the liber has been stipplied, means for supplying paper on said last mentioned plaster whereby a plaster board is formed, and means for marking, means for shapingr said board, a cutting tal le, and means for severingr said board in predetermined lengths.

7. In a machine of the class described, a conveyor belt and means for mounting the saine so that said belt leaves a trough-likeportion en its upper riin, means for supplying said belt vwith plaster, and hydratingmeans` for supplying said belt with water so that such plaster may be hydrated,

' sain' lijrdrating means being controlled by the rist .2 n'l t'all et' the ivater in said trough-like portion.

Iii a machine fl the class described a belt and means for mounting the saine s0. tha. said belt is provided with a trdiigh-like portion, means for placing plaster on said belt, means for distributing Said plaster platt-d over said belt, and means automaticalli' finiti-oiled by the supply of water in the trough for livdrating said plaster in said trough-like portion of said belt.

i. In a plaster board machine. a conveyor belt and means for su )ioitin'f the saine 1n a treuglelilte shape on its upper run, means elo for placing .plaster on said belt, means for hydrating the plaster on said belt and automatic :ia-ans' controlled by the rise and fall oi the water in the trough for regulating thel tlovv ot' water on said beit. l0. ln a machine of the class described, a belt and means for snpportin';r the saine with a troiigiflilte portion on its upper rua, means t'or supplying plaster to said beit, means for distributingr plaster over said belt. nit-ans aittoimitieally controlled by the height of water in the trough-like porti-on for hidrating the plaster while. in the trough-like portion of said belt. and means for removing the lrvdrating plaster from il belt. ll. Iii a machine otl the class described, a

convevei', and means for supporting the: sa ie so that said eonveyer has on its upper run a trough-like portion, a horizontall)v disposed portion and a portion inclined, means for supplying said upper run with plaster and means for hydrating the sa ie,4

an endless conveyer having thickened edges, and means for flexing said coiiveyer adjacent to said edges whereby said edges aie removed from the material carried by said conveyer.

13. In a machine of the class described, an endless eonveyer, means for supplying the same with paper, means for placing plaster on said pit-per, means for placing liber on said plaster, means for placing plaster cn said fiber, automatically controlled means for hydratingf,r said plaster, means for placing iiber over said last mentioned plaster, means for pressing and marking the plaster board thus formed, means for severing` said board into slabs of a predetermined length and means for passino' said slabs ont of and away from said boar s.

l-l. In a machine of the class described,

an endless conveyer, means for delivering the paper on said conveyer, means for mixing fiber and plaster together, automatic means for hydrating' the plaster, means for placing paper `on said last mentioned plast-er and liber whereby a plaster board is formed, and means for shaping said plaster board before the paper sets.

15. In a machine of the class described, an endless conveyer, means for delivering paper on said conveycr, means for mixing and automatically liydrating the plaster and fiber together, means for placing paper 0n said plaster and fiber wlierebyla plaster,

Abaard is formed and means for sha )infr said plaster board before the plaster sets.

1G. In a machine of the class described, an endless' conve-yer, means for delivering paper on said conveyor, means for mining plaster and fiber tt 'fether, a corrugated roll for distributing the mixed plaster and fiber, mtans for placing paper on said last nient'iont-d plaster and fiber whereby a plaster board is formed, and means for shaping said plaster board before the plaster sets.

1T. ln a machine ot' the class described, the combination ot means including a conveyer-tlexing means for forming a plaster board, and means for severing the board into slabs during apaiise in the movement ot said board.

1S. l'n a machine of the class described, the (,-ombination ofineans including a ccnveyer-Ilexing means for formingr a plaster board, means for severing the board into slabs during a pause in the movement of said board, and means for taking away the severed .slabs at an angle to the line of travel to the beard.

lt. machine of the class described, an endless convert-r lrnaig thickened edges, means for flexing. said conveyor adjacent to said edges whereby the edges are removed from the material and means for severing tite board into slabs during a pause in the movente ;t of the conveyer.

Qt'. A machine of the class described, an endless eonveyer inning thiekened edges, means for flexing said conveyor adjacent to said edges hereby the edges are removed 'from the material, means for severing the boai l into .slabs during a pause in the movement. ot' the conveyor, and meansor rematically hydrating the plaster', buoyantmeans for controlling said hydrating means, means for distributing the lnixed plaster and liber and means for placing paper on the plaster and liber.

In a machine of the class described, an endless conveyor, means for delivering .paper on said conveyor, means for mixing plaster and fiber together, means for automath-alliv hydrating the plaster, buoyant means for controllingr said hydrating means, means for distributing the mixed plaster and liber. means for placing paper on the plaster: and fiber, and mea-ns for shaping the plaster board before the plaster sets.

Q4. In a ma chine of the class described, an endless conveyer, means for delivering paper on said conveyor, means for mixing plaster and fiber together, means for automatically hydrating the plaster, buoyant means for controlling said bydrating me: as, means for distributing the mixed plaster and liber, means for placing paper on the plaster and liber, lneanfJ [er shaping the plaster board before the plaster sets, and meansfor severing the board into slabs during a pause in the movement of the conveyor.

25. In a machine of the class described, an endless conveyor, means for delivering paper on said conveyer, means for mixing plaster and liber together, means for automatically hydrating the plaster, buoyant mea-ns for eontrollinfr ,said hydrating means, means for distributmg thev mixed plaster and liber, means for placing paper on the plaster and liber, means for shaping the plaster board before the plaster sets, means for severing the board into slabs during a pause in the movement of the conveyor, and means for removing the severed slabs.

26. In a machine of the class described, an endless conveyor, means for delivering paper on said conveyer, means for mixing plaster and liber together, means for automatically liydrating the plaster, vbuoyant means for cont-rolling 'said hydrting means, means for distributmg the mixed plaster and fiber, means for placing paper on the plaster and fiber, means for shaping the plaster board before the plaster sets, means for Severin the board into slabs during a pause in tie movement of the conveyer, means for removin the severed slabs, said means being latera ly movable.

27. In a machine of the class described, the combination of means for forming a plaster board by a continuous operation, means for progressing the board forwardly as it is formed, intermittently operating means for' moving the latter, means for severing the board into slabs during a pause in the movement of the board, said severing means being operable at each actuation of said moving means.

Signed at the citvof New York, county of New York, and State of New York, this 14th day of November, 1908.

GEO. R. KING.

Witnesses:

(los. l. AnNoLn, Ilumv RADZINSKY.l