US1379940A - schumacher - Google Patents

Description

1. SCHUMACHER. PROCESS AND MEANS FOR MAKING PLASTER BOARD AND THE LIKE.

APPLICATION FILED MAY 10, 1920. 1,379,940, Patantefi M331, 1921.

6 SHEETSSHEET 1.

J. SCHUMACHEB.

PROCESS AND MEANS FOR MAIHNG PLASTER BOARD AND HE LIKE.

APPLICATION FILED MAY 10, 1920.

1,379,940. Patented May31,1921.

6 SHEETS-SHEET 2.

/ A /W/W J. SCHUMACHER.

- PROCESS AND. MEANS FOR MAKING PLASTER BOARD AND THE LIKE.

' APPLICATION FILED MAY1O1'1920- Patented Ma 31, 1921.

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PROCESS AND MEANS FORMAKING PLASTER BOARD AND THE LIKE.

APPLICATION FILED MAYIOI-IQZO.

Patented May 31, 1921.

a eu M W w SCHUMACHER.

PROCESS AND MEANS FOR MAKING PLASTER BOARD AND THE LIKE.

MAY 10, I920.

APRHCAHON F LED 1,879,940. Eatenied Ma 31, 1921.

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APPLICATIONHLED MAY1011920.

1 79 ,940. Patented May 31, 1921.

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rnocnss AND MEANS iron inst-sine rizes'rnenonien AND THE LIKE.

Specification of Letters Eatent. I a,t;@nted pl 31 1 21 -Applicatio'n filed May 10, 1920. Serial No. 380,09F.

To all whom it may concern:

Be it known that I, dorm SOHUMAOHER, a citizen of the United States, residing at Los Angeles in the county of Los Angeles and State of Galifornia,"have invented new and useful Improvements in Processes and Means for Making Plaster-Board and thelike, of which the following is .a specification.

This invention relates to an improved process and means of making'and handling plasterboard. Such board comprises a sheet of paper or paperboard and a coating of plastic material applied thereto. As is well known in this art, the plastic material may include as its ingredients, plaster, cement, or compositions ofthe same applied. to the sheet in its plastic form and then allowed to set, the plastic material adhering to the sheet in its final shape as a stiff plaster board. 1

In the manufacture of such plaster board, it is the common practic to continuously feed sheets of paper between which the plastic material. is interposed. the paper .and plastic material, are commonly fed from a stationary structure upon a conveyor, severed into initial lengths and piled on trays for convenience in handling during the final steps. Such arrangement of apparatus requires a large floor spaceand much handlingiof the plaster board, which, in its soft state, requiresslrill and care. Trays or receptacles for the plaster board must be movedfrom place to place in loading and following out the various stepsof the process.

It is the primaryobject of this invention to provide a process and means to carry out such process, whereby apparatus for initially forming the plaster board may be moved' w1th respect to the receivers for the board,

the soft board flowing upon the receivers Wllllfl the latter are stationary.

The, above mentioned objects together with other objectsand corresponding accomplishments may beobtained by means of the assemblage, arrangement and aggroupment ofmean's and mechanisms illustrated in the accompanying drawings, in which:

Figure 1 is a side elevation of apparatus for conveniently carrying outthe' steps of the process; Fig. 2 is a cross-section as seen on the" line 2-2 of Fig. 1; Fig. 3 is an enlarged fragmentary section as seen on the line 33 of Fig. 2; Fig.4 is a plan view of the structure shown in Fig. 3; Fig. 5 is a forming mechanism E. j is mounted to travel transversely of the structure upon a traveling platform F. The

In such apparatus diagrammatic section as seen on the line 5--5- of Fig. 1; Fig. 6 is a section taken on the line 6-6 of Fig. 3; F lg. 7 is a section taken on the line 77-? of Fig. 3; Fig. 8 is an enlarged section of the reversing gearing taken'on the line 8-8 of Fig. 7 5 and Fig. 9 1s a section taken on the line 9--9 of Fig. 1 showing the means for severing the board between the receiving cars.

lteferring more particularly to Figs. 1, 2, and 9, A indicates ahopper in fixed position for supplying plasticmaterial to tubs indicated generally by B. 1 These tubs are supported upon a framework C. A traveling hoist D is provided for the purpose of moving the tubs B to and from plaster board The mechanism. E

platform is mounted for traveling longitudinally. of the structure upon a girder framework Thus, the plaster board forming mechanism is mounted to travel transversely and longitudinally overhead. Disposed beneath the path oftravel of the plaster board forming mechanism are cars carrymg receiving trays, all being indicated generally by H. Also mounted for travel upon the girder framework is a platform J, uponwhich is mounted for travel a severing means K, whereby the board may be severed between trays.

ldounted above the hopper structure A is a composition mixing trough '12 having mixmg blades 18 rotatably mounted therein and driven by suitable means. A water supply pipe let is provided above the trough, and adjacent to the latter is a platform 15 for a mining operator. The platform is also convenient for holding the ingredients indi cated' by '16, facilitating thecharging of the mixer and the handling of the ingredients used in the plastic composition. The hopper A is provided witha spout 17 equipped with a suitable discharge gate 18.

I lt/iounted upon a platform 19 below platform 15 is a framework carryingrails 20. The tubs B each comprise a receptacle 21 girded by a frame 22, upon which are journaled wheels The tubs are supported uponthe rails 20 through the wheels with hooks 26 on the tubs. Thus, the tubs may be lifted from the rails 20 and transferred to the plaster board forming mechanism or vice versa. 7

Referring to the girder structure G, it com prises columns 29 suitably braced and supporting girders 30. The girders are arranged in two parallel rows, each row having a rail 31 mounted thereon. The rails provide ways for the travel longitudinally of the cutting mechanism and the platform F.

The platform F comprises a rectangular frame 32 spanning the girders 30. Journaled upon the frame at the corners thereof are wheels mounted upon rails 31, so that the platform can travel back and forth upon the girder structure. The forward wheels constitute driving wheels, and fixed to the axles thereof are sprocket wheels 34. The wheels 34 are geared to wheels 35 by means of chains 86. Each wheel 35 is fixed to the end of a shaft 37, best shown in Figs. 6 and 7. Shaft 37 is driven through a. gearing later described. Mounted upon the frame 32 are parallel rails 38 forming ways for the travel of the plaster forming mechanism.

The plaster forming mechanism comprises a base frame 39 supported upon wheels 40 journaled thereon. The wheels 40 ride upon the rails 38, so that the plaster forming mechanism can travel along the platform F transversely of the structure. Each of a pair of wheels 40 upon opposite sides of the frame 39 are fixed to stub axles 41, best shown in Figs. 3, 4, and 7. Fixed to each axle 41 is a spur gear 42. Each spur gear is in mesh with a pinion 43. The pinion gears 43 are fixed to a shaft 44. Fixed to the shaft 44 is a sheave wheel 45 serving to drive the shaft and operated by means of a chain 46 passing thereover. As the plaster forming mechanism is moved transversely of the structure at intervals to feed plaster board to trains of cars arranged parallel, it is sufficient to move the plaster board forming mechanism by hand power.

Secured to corresponding beams on the frame 39 are triangular plates 48, see Figs. 1, 3. and 7. At the bottom of the plates are bushings 49 and 50. Shaft 37 is journaled in bushing 50. Rot-atably mounted in bushing 49 is a sleeve 51, to which is secured a sprocket wheel 52. The inner end of sleeve 51 is provided with clutch jaws. Fixed to sleeve 51 is a bevel gear 53. Spaced therefrom and rotatably mounted upon the shaft 87 is a similar bevel. gear 54 having a clutch jaw. Meshing with bevel gears 53 and 54 is a bevel gear 55 rotatably secured to a plate 56 extending between plates 48. It is obvious that gear 55 will drive gears 53 and 54 in opposite directions. Splined to shaft 87 and disposed between gears 53 and 54 is a clutch sleeve 57. Sleeve 57 is pro vided upon opposite ends wit-h jaws for engagement with either gear 53 or gear 54. Thus, if the sleeve isengaged with gear 54 shaft 37 will be driven in one direction, and if the sleeve is engaged with gear 53, the shaft will be driven in the opposite direction. Motion is transmitted from the shaft 37 to the drive wheels of the platform, and the latter caused to move backward or forward. A shift lever 58 secured to the sleeve 57. The shift lever is connected by a link 59 to a control lever 60, whereby an operator by shifting the clutch may cause the platform to travel forward or backward at will or stop. Sprocket wheel 52 is geared to a wheel mounted upon a drive shaft by means of a chain 61. Mounted upon the beams of the frame 39 are pillow blocks 62, in which is journaled a shaft The shaft 6-3 overhangs one of the pillow blocks and is journaled in a bearing block 64. Fixed to shaft 63 and inside of block 64 is a. worm wheel 65. lvleshing with worm wheel 65 is a worm mounted upon a shaft 66 driven by a motor 67. Also fixed to shaft (33 is a double sprocket wheel 68, over which passes chain 61, driving gear on shaft 37.

A roller 7 0 is fixed to shaft 63 so as to be driven thereby. Cotiperating with roller 70 is a pressure roller 71, see Fig. 5, journaled in sliding blocks 72 mounted in ways upon pillow blocks 62. Blocks 72 are resiliently held in position by means of springs on either side thereof, and their position is adjusted by means of hand wheels 73. This provides for controlling the thickness of the plaster board. Rotatably mounted upon the frameworh 39 are rolls of paper 74 and 75. A web of paper is led from roll 74 around a guide roller 76 and over roller 70. A web of paper from roller is led over a guide roller 77 and over pressure roller 71. Embracing a portion of roller 7 O is a box 7 8, the bottom thereof being open and one side being cut away to permit a portion of pressure roller 71 to pass therein. Box 7 8 serves to receive the plastic composition from a tub 21 and to guide it to and between the webs of papers passing from rolls 74 and 75. The bottom of each tub is provided with a spout 79 and a gate valve 80 to control the flow of plastic composition from the tub to the box.

From the construction just described,"it' is obvious that the plastic'composition is fed positively driven by itsfriction'with thev surface of roller -70.* The paper adhering to the other surface ofthe plastic composition will be assisted'in its travel from roll 75. i The initiallyformedsoft plaster board is delivered to a conveyer which issupported from the frame 39 and extends downwardly toward the cars to which the plaster board is delivered. i

The conveyercomprises a frame work 81 pivotal]; supportedupon the frame work 39. The upper ends'of theside 'membersof the frai'nework 81 are pivotally mounted upon. a shaft 82. Shaft 82 is journaled in frame 39 and has-fixed thereto a drive roller 83 forthe endless conveyor 84'. Adjustably mounted at the far end of the frame 81 is a roller over which conveyor 84 passes. Fixed to the; end of shaft82' is a pinion 86 meshing" with agear 87; Gear 87 is fixed toa stub shaft having secured. thereto a sprocket wheel 88'; Sprocket wheel 88 is geared by admin 89 tothe sprocket wheel 68 mounted on shaft 63. This provides for driving roller 83 at the speed corresponding to roller 70. Secured to the conveyer frame adjacent its far end is a bail 90 having a cable 91. secured thereto and passing over an idler wheel 92 journaled in frame 39. Secured to the free end ofcable 91 is a counterweight 93; Bymeansof this construction, the delivery end of the conveyer may be raised and lowered. 1

Referring to Figs. '3 and 5, itwill be noted that plasterboard passes from the plaster board forming -mechanis1n upon the conveyer, is carried therealong and delivered from the end; The processis continuous. When a tub 21 mounted on-the plaster forming mechanism. is emptied, the latter is moved to one endof the platform Fxadjacent the framework 19. Y ThehoistD is'then lowered. to engage the empty tub, and the latter is lifted and placed upon the rails'20 at their left hand ends as shown in Fig. 2. A full tub 21 is then engaged'bythe hoist and loweredtothe plasterboard forming mechanism. Atubflwhich has been filled and rests upon the rails'20 is then moved to the right hand end thereof, riding upon the rails 20. The plasterboard forming mechanism is moved transversely of=the structure so that the conveyor is disposed over a train of-cars ha'vingtrays to'be filled. The end. of the conveyer disposed 'ajshort distance above the surface upon which the board-is to'be laid. The platform is then moved to one end ofthe structureby means of the motor mechanism and the plaster forming mechanism started as well as the platform, so that the latter travels to the other endof the train. 111- its travel a length of plaster board is laid from one end of the train to the other. When the other end of the train is reached, the plas ter board is severed and the platform started in the reverse direction. When the other end of thetrain is reached the board is severed, and this is continued until the requi site numberof layers of plaster board have been stacked, one on top of the other.

Itisnecessary to sever the plaster board between cars, in order that the receivers or trays thereon may be handled independently. For this purpose a cutting mechanism is provided. Referring particularly to Figs. 1 and 9, this may comprise a platform J mounted on wheels and'traveling longitudinally of the structure. The platform is equipped with driving wheels and gearing similar to: that for the plaster forming mechanism. However, it is operated manually from a sheave wheel 94 and a chain 95. Traveling upon the platform J is a frame indicated generally by 96. This frame is moved back and forthupon the platform through gearing and a sheave wheel 97 rotated by means of a chain 98. Suspended from the frame 96 is saw frame 99 having a circular saw 100 rotatably mounted at the lower end. The saw is operatedby means of a belt 101 driven from a motor 102 mounted upon frame 96. A link may depend from theframe and be connected to astarting switch for the motor. It is obvious that the platform J and the cutting mechanism K may be moved to a point over a train of cars, the motor 102 started, and theframe 99 moved so that the saw 100 cuts the piles of plaster board, separating, those on adjacent cars.

It is obvious that this invention provides for a process to make" and handle plaster board by moving theplaster board forming inechanismback and forth so as to deliver the plaster board in layers to receivers.

What I claim is: 1

. 1. The herein disclosed process of handling plaster board and the like, which consists in continuously forming flexible plaster board, reciprocating the forming mechanism above a receiver, and flowing said plaster board upon said receiver during travel of said mechanism so that the board is stacked in layers on said receiver.

2. The herein disclosed process of handling plaster board and the like, which consists in continuously forming plaster board, reciprocating the forming mechanism. above a receiver, flowing said plaster board upon said receiver during. travel of said n1echanism, and severing said plaster board at the ends of'its travel in either direction.

3. The herein disclosed process of handling plaster board and the like, which con sists in continuously forming flexible plaster mechanism above a receiver, laying the plaster board downwardly upon said receiver during the travel of said mechanism, and severing said plaster board at the ends of its travel in either direction.

5. The herein disclosed process of handling plaster board and the like, which con: sists in forming flexible plaster board, reciprocating the forming mechanism above a receiver, flowing said plaster board upon said receiver during the travel of said mechanism, and moving said mechanism transversely to its reciprocating travel, whereby parallel rows of plaster board may be stacked on said receiver.

6. The herein disclosed process of handling plaster board and the like, which consists in forming flexible plaster board, reciprocating the forming mechanism above a receiver, flowing said plaster board upon said receiver during travel of said mechanism, moving said mechanism transversely to its reciprocating travel, and severing said plaster board at the ends of its travel in either direction, whereby parallel rows of plaster board may be stacked on said receiver.

7 The herein disclosed process of handling plaster board and the like, which consists in forming flexible plaster board, horizontally reciprocating the forming mecha nism above a receiver, laying said plaster board downwardly upon said receiver during the travel of said mechanism, and moving said mechanism transversely to its reciprocating travel, whereby parallel rows of plaster board may be stacked.

8. The herein disclosed process of handling plaster board and the like, which consists of forming flexible plaster board, horizontally reciprocating the forming mechanism above a receiver, laying the plaster board downwardly upon said receiver during the travel of said mechanism, severing said plaster board at the ends of its travel in either direction, and moving said mechanism transversely to its reciprocating travel, whereby parallel rows of plaster board may be stacked on said receiver.

9. In a laster boardapparatus, a traveling plaster board forming mechanism comprising means to continuously advance and convey plaster board to a surface upon which it is laid.

10. In plaster board apparatus, the combination of an elevated structure, a plaster board forming mechanism mounted to travel longitudinally thereof comprising means to continuously advance and convey plaster board, and a receiver disposed beneath said structure on which said plaster board is piled.

11. In a plaster board apparatus, the combination of an elevated structure, a plaster board forming mechanism mounted to travel longitudinally and transversely thereof, and a receiver disposed beneath saidstructure on which said plaster board is piled.

12. In plaster board apparatus, the combination of an elevated way, a platform mounted thereon to travel longitudinally thereof, plaster board forming mechanism mounted to travel on said platform transversely of said way, and receivers disposed beneath said structure on which said plaster board is piled. 1

13. In plaster board forming apparatus, the combination of an elevated structure, a plaster board forming mechanism mounted to travel longitudinally thereof, receivers disposed beneath said structure, and a conveyer secured to said plaster board forming mechanism to continuously deliver said plaster board therefrom to said receivers on which said plaster board is placed.

14. In a plaster board forming apparatus, the combination of an elevated structure, a plaster board forming mechanism mounted to travel longitudinally and transversely thereof, receivers disposed beneath said structure, aconveyer secured to said plaster board forming mechanism to deliver said plaster board therefrom to said receivers on which said plaster board is placed.

15. In a plaster board apparatus, the combination of an elevated way, a platform mounted thereon to travel longitudinally thereof, plaster board forming mechanism mounted to travel on said platformtransversely of said way, receivers disposed beneath said structure, and a conveyer secured to said plaster board forming mechanism to deliver said plaster board therefrom to said receivers.

16. In plaster board apparatus, the combination of an elevated structure, a plaster board forming mechanism mounted to travel longitudinally thereof, receivers disposed beneath said structure, and a conveyer secured to said plaster board forming mechanism so that the delivery end may be raised and lowered.

17 In plaster board apparatus, the combination of an elevated structure, a plaster board forming mechanism mounted to travel longitudinally and transversely thereof, receivers disposed beneath said structure, a conveyer secured to said plaster board forming mechanism so that its delivery end may be raised and lowered.

18. In plasterboard apparatus, the comto said plaster board forming mechanism bination of an elevated Way, a platform so that its delivery endvmay he raised and a mounted thereon to travel longitudinally lowered. 10

thereof, plaster board forming mechanism, In witness that I claim the foregoing I 5 mounted to travel on said platform transhave hereunto subscribed my name this 30th versely of said way, receivers disposed beday of April,'1 920. neath said structure, and a conveyer secured JOHN SCHUMAGHER.

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