US1631839A - Mold for forming hollow panels - Google Patents

Description

une 7 1927. J c. H. TERRY MOLD FOR FORMING HOLLOW PANELS eats-Sheet 1 Filed Dec. 24 1925 C -1 I INVENTOR. m VV J ATTORNEYJ,

C. H. TERRY MOLD FOR FORMING HOLLOW PANELS Filed Dec. 24. 1925 2 Sheets-Sheet 2 xii 1i 27 l8 3 Z0 2 0 86 "o 3 3 Z6L 2b 2 4 3 25 24' Z8 f If? 4 28 K J 'I- M EJ A TTORNE 1K3,

between.

' over Figure e.

Patented June 7, 1927.

UNITED cHARLEs'I'I; TERRY, or CINCINNATI, oHIo.

MOLD FOR' FORMING HOLLOW PANELS.

Application filed December 24," 1925. Seria1No. 77,456."

In the-production of panels molded from gypsum plaster cement and the like, it is desirable to provide means whereby panels of desired length, width and thickness can be produced quickly and securely, with the minimum of mechanism, and in as simple as possible a manner. a f

It is the object of my invention toprovide a collapsible mold for this purpose in which the sections are articulated to, each other, and can be swung together, with proper adjustment to the finer degrees of spacing, with dovetails and grooves formed in the edges of the cast blocks, and suitable means for gripping forms. used in the positioning of any cores that may be used. i

In the production of plaster panels, it is a requirement for good work, that the plaster be subjected to pressure in the setting operation, and this I provide-in my mechanism by means of clamping bolts whichhave cam ends that are not swung into tightest posi tion at the start, and asthe plaster starts setting are tightened up by swinging; the cams around, as will be noted.

It is a feature of my mechanism, that the device can beset for forming a very wide range of sizes of panels and a very wide range of structurally different panels, since the forms for holding the end wall forming structures, are built up' to match the cross section of whatever style of panel is to be molded, and are clampedin position within the articulated side molding sections in whatever position they may be set there The cores are then set in place in the end sections, and when the plaster is setting the whole body is'subj'ected to pressure by tightening the position of the side walls of the mold to compress the body to the final crosssection, thus molding all outside and inside surfaces under pressure.

I attain my objects bythat certain construction and arrangement of parts to; be hereinafter more specifically pointed out and claimed. 7 1 a In the drawings; I

Figure; l is a side elevation of the'dev-ice.

Figure-2 is a section on. thline 22 of Figurel; a

,4 Figure" 3 is a section f of at modification Figure 4; is a section entire? line of Figure 1,-shoW1ng-a device, 7,

section of the mounting Figure 5 is an elevation of an end post or filler. 7 As a base for my devicean I.-beam 1 secured to a suitable foundation will serve the purpose. Hinge brackets are spaced along the beam on 'bothsides below the fiangethereof, thesebrackets being formed with shanks 2*, that screw intothe web of thebeam, and have tubular heads marked 2. The mold sections have hinge leaf portions 3' thereon, and pintles 4 secured to the leaf portions over the tubular ends of the brackets; The shanks-2 are heldfirmly in place in the web of the beam by nuts 2", which are subject to adjustment, to control variations in spacing desired between the beam. I

The mold sections are made up of channel irons 5, secured together by wooden bars 6. The upper and lower edges of the sections are provided withangle iron bars 7, extending lengthwise thereof, which areflriveted to the vertical channels, thus providing the frame ofthe sections. I

' The sections arelinedwithmetalplates 8, which are; secured to the wooden bars or stringers.

. T p a a the closure for the mold at the bottom; and filler pieces 8"; can be placed at the sides of the top fiange,in adjusted positions of the mold sections. Also'for forming a groove lengthwise of the panel, a strip 8" may be placed on the top of the beam flange; I have shown this strip as formed of metal and permanently set in a countersink lengthwise of the beam flange.

To provide a tongue along the other end oi the form I mount two strips of Wood or metal at the upper ends of the movable .mold sections, one oneach side, leaving a space between them which can be filled with the cast body, thus forming'a rib or tongue lengthwise of the molded article.

In order to make this adjustable for location, I provide for a; series of holes 9 in the wooden bars or stringers forming the frame of the sections. Screws 10set in the strips 1 1 pass through these holes'and are secured by nut'saonvthe outsi-de of the chain nel-s In the? drawings l have shown the strips 11 held iir placeondtlie' depending flangedfithe top angle bars of the two sec.-

tions; and it: will: be: understood that this mounting; of the tongue forming boards or flange of the base beam provides arms 12 to the frame channels of one of the" hinged sections. Pivoted to these brackets are swing bolts 13, having a turnbuckle 14:

forming part of the shanks thereof, and having pivoted earns 15 forming the heads thereof.

The forked brackets 16 are mounted along the other of'the sections, into the forks of which the swing bolts are moved, and by swinging down on. the handles 17 on the cam heads, theseare rocked against the tines of the forked brackets, and clamp the two sections together. The spacing of the sections is. provided by the flange of the supporting beam below;

For mounting any cores that may be used, I do not require special mechanism, and have illustrated none. be arranged in any apertured posts in which the cores rest and the post he set in vertical position between the sections as they are being clamped together. Such posts will be counterpartsof a section of the final product, as for example the postillustrated at 18.

In an alternative form of device of Figure 3, Ihave shown beams or supports 20 onto which the mold may be set, it being of a type to be poured when. in' horizontal position. The sectionsforming the hinged leaves are alike to those already described and have been marked 21 and 22. Bolted to the angle irons 23 of the two sections are hinge leaves 24, joined by pintles 25. An angle iron 26 forms the one end wall and the angle iron 27 forms the other. l/Veights 28 are secured to each of the sections, opposing the closing and clamping movement of the swing bolts 29,- which are of similar structure to those already described.

In operation the usual form, as first-1y described, will be filled from the top. The operator first sets the mold for thickness by adjusting the base connections, and filling out the'base beam top flange, and also adjust} ing the turnbuckles on the swing bolts. He also sets the boards forming the tongue along one edge of'the block, and arranges the up right posts forming the other edge walls, with suitable collapsible cores extending therethrough, and passing across the space between the mold sections. The mold is then closed sufliciently to hook the bolts over from one section to the other, thereby grasping the upright posts inwhatever position theyhave been arranged. The plaster is then poured into the mold until it reaches the top boards, wherever they have been set.

The plaster then is permitted to partially set, and the operator then swings down the A set of cores may handles on the bolts thus forcing the plaster to aicompressed condition against all sur' faces of the form, upon which the plaster abuts. The molding of the panel is then continuedto hardness, under this compres close the gap between the sections, and means for securing said sections together-along their other edges away" from' the hinged edges, comprising swing bolts and forks;

2. A mold'for forming plaster panels and the like comprising sections, hinged together in spaced relation along their edges, aspacing plate secured in connection with the hinging means, and adapted to'define and close the gap between the sections, and means for securing saidsections together along comprising swing bolts and forks, having cams as heads,and handles for the cams whereby the camscan be swung against the forks through which thebolts pass.

3. A mold for formin'gplaster panels and the like comprising sections, hinged together inspaced relation along their edges, a spacing plate secured in connection with the hmgmg means, and adapted to define andclose the gap between the sections, and

means for securing said sections together.

along :their other edges away from the t5 their other edges away from the hinged edges, r

hinged edges, said means being adjustable in length so as to effect a gripping of the sections togetherin parallel position as defined by the spacing plate.

4:. A mold for forming plaster panels comprising a beam having a flange acting as a spacer between the mold sections, mold sections hingedly secured to said beam below the flange, and means for retainingthe opposite edges of thesections together.

5. A mold for forming plaster panels comprising a-beam havinga' flangeacting as a spacer between the mold sections, mold sections hingedly secured to said-beam below the flange, and means for retaining the opposite. edges of the sections together, filler pieces added to the flange of the beam at the sides thereof, and"means for adjusting the means for retaining the opposite'edg'es.

lit)

6. Ainold for; forming plaster panels and the like i comprising elongated sections defining the sides of the mold, and adapted to clamp between them, devices for forming the ends thereof, whereby said ends may be located at any desired position, means for hinging the sections together in spaced relation, and means for clamping the unhinged opposite edges of the sections together, and a spacer between the sections at the hinged end.

7 A mold for forming plaster panels and the like comprising elongated sections defining the sides of the mold, and adapted to clamp between them, devices for forming the ends thereof, whereby said ends may be located at any desired position, means for hinging the sections together in spaced relation, and means for clamping the unhinged opposite edges of the sections together, and a spacer between the sections at the hinged end, and means for adjusting the hinging and clamping devices so as to adjust the spacingbetween the sections when in position prepared for molding.

8. A hollow panel molding form, whose sides are arranged to be held together in other than parallel relation, and to be subsequently drawn to parallel relation thereby confining a poured body of plastic material under added pressure.

9. A hollow panel forming form, having articulated sides, means for closing the sides at top and bottom, and end posts formed as cross sections of the final panel, whereby cores may be mounted therein, said articulated sides arranged to clamp the posts between them, and said sides having means for securing them together in one position during pouring of the plastic substance, and in a closer relative position for exerting pres sure on the plaster while setting.

10. A hollow panel forming mold whose sides, ends and edges are relatively adjustable to mold all outside and inside surfaces of a hollow panel, and means for adjusting one or more of said elements of the mold into a position of more tightly gripping the plaster body, after the plaster body has been poured into the form.

CHARLES H. TERRY.

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