US1314325A - Obktamental-ceiliitg-setting apparatus - Google Patents

Description

.l. M. GRIER.

ORNAMENTAL CEILING SETTING APPARATUS.

Patented Aug. 26, 1919.

2 SHEETS-SHEET 1- APPLICATION FILED IAN-23. I918.

'l'NB COLUMBIA PLANOGRAPN 9-. WASHINGTON, D- C J. M. GRIER.

ORNAMENTAL CEILING SETTING APPARATUS.

APPLICATION FILED JAN. 23. 1918.

1,3 1 4,325 Patented Aug. 26, 1919.

2 SHEETS-SHEET Z.

'rllu cnulmnm PLANOGRAPII C0-. WASHINGTON. D. 1:.

JOHN M. GRIER, OF SALT LAKE CITY, UTAH.

ORNAMENTAL-CEILING-SETTING APPARATUS.

Application filed January 23, 1918.

To all whom it may concern:

Be it known that I, JOHN M. Gnrnn, a citizen of the United States, residing at Salt Lake City, in the county of Salt Lake and State of Utah, have invented certain new and useful Improvements in Ornamental- Ceiling-Setting Apparatus, of which the following is a specification.

My invention relates to apparatuses for placing and setting ornamental ceilings, and has for its object to provide an efiicient apparatus upon which may be placed sections or ornamental colfer panel ceilings and then to raise said panels and hold them in place until they are set and secured to form a ceiling.

These objects I accomplish with the apparatus illustrated in the accompanying drawings in which s1m1lar letters and mu morals of reference indicate like parts throughout the several figures and as described in the specification forming a part of this application and pointed out in the appended claims.

In the drawings in which I have shown a substantial embodiment of my invention Figure 1 is an elevation of my apparatus shown in position in the corner of a room and with a section of a cofl'cr panel thereon ready to be raised, held and secured in place in the corner of the room contiguous the cornice, parts cut away. Fig. 2 is an elevation of the apparatus with the same section raised and secured in place, parts cut away. Fig. 3 is an end view of the apparatus with a section of the ceiling panel thereon ready to be raised into position. Fig. 4 is a fragment of a ceiling after the same has been set in place with my apparatus. Fig. 5 is an end elevation of the detachable rack, and Fig. 6 is an end view of the platform operable in the rack with portions of the ropes cut away. Fig. 7 is a side elevation of the platform showing a modification for curved table or top' used When an arched ceiling is required, and with the knock-down features shown in dotted lines.

It is often found diflicult to handle, hold and secure cofi'er panels of a ceiling, on account of weight and the rigidity with which theymust be held in place while the setting takes place. The workmen must frequently walk around on scaffolding under the panels and on which the panelsare secured thereby breaking the plastic cement while the chemical changes are taking place Specification of Letters Patent.

Patented Aug. 26, 1919.

Serial No. 213,426.

in the cement, and I have invented an apparatus consisting of a scaffolding, a rack mounted thereon which may be knocked down, and an adjustable platform operable 1n sald rack upon which the ornamental cofler panels for a ceiling may be placed, raised Into position and held rigidly in place while the workmen fasten the sections of the ee1l1ng to the suspended frame work.

The scaffolding consists of a top or floor A supported by braces B upon which the rack C is mounted. The said rack is made of piecesdetachably fastened together by bolts and nuts and consists of the cross beams 1 and 2 and the posts 3 upon which are provided tenons to fit in mortises cut in the said beams 1 and 2. Angled braces 4 set into the posts 3 and beams 1, with the longitudinal ties 5 and angled braces 6 constitute the rack. The platform D is provided to operate within the rack C, and consists of the uprights 7, one at each corner, to which are bolted the cross pieces 8, one at each end, and side pieces 9, one for each side, with angled braces 10, and the top or table 11. This may be flat as shown in Figs. 1, 2, 3, 5 and 6 or curved as shown in Fig. 7 at 12. Blocks 13 are fastened to the cross beam 2, and similar blocks 14 are secured to the cross beam 8 which blocks with the ropes 15 form the blocks and tackles by which the platform D is raised and lowered in the said rack C. A free space is provided on all sides between the said platform D and therack C. I use ropes for the tackles instead of wire cables for the reason that ropes are more flexible, and it is necessary that the means used to hold the said platform D in what might well be called the setting position, must not yield longitudinally but be free to move laterally, in order that when the panels are raised and held in position for setting on the ceiling, the workmen may walk around on' the scaffold A without their actions, movements or weight imparting any shock or movement to the panel.

The. operation of my apparatus is as fol-' 1ows:-

The scafi'old is erected in the room with the floor thereof at practically seven feet below the frame work to which the ceilin I panels are to be fastened, this frame W01; usually consists of light channel or angle irons a crossing at right angles and sus pended from the concrete slabs ,or joists b of the room, by short rods a The rack C isassembled by placing the tenons of the post 3 in the mortises of the beams 1 and 2, and with the braces 4 in position. The sides of the rack are then bolted in place after the platform D has been assembled Within the rack. The rack and platform are both so constructed that they may be easily knocked down, as it is frequently necessary to move around or under ceiling beams. With the cornice 6 run in place on the metal furring (Z, the coifer panels which have been previously prepared, are placed on the platform. The blocks and tackles are mounted on the cross pieces 8 of the platform D and the beams 2 of the rack C. When the ropes 15 are pulled longitudinally over the blocks 13 and 14:, the platform D and 'coffer panel 7 thereon will be raised and may be held in position by fastening the said ropes, While the Workmensecure the panel in place. The securing or fastening of the section of the panels is by using long fibered'material such as waste, hemp and rope. pieces, which has been clipped and saturated in casting plaster,

a plastic'cement used for such purposes and looping it over the said frame work and cementing'the ends of said fiber to the back or upper side of said panels. When the said casting plaster has set the panels will be firmly held in place, and the platform D and rack C'may be moved and used in setting the next panel. The use of ropes 15 on the blocks 13 and let to raise and lower the said platform D and hold it in the raised position, and the free space between the said platform D and rack C will allow the workmen to Walk around on the scaffold withoutin any way moving the platform or in anyunintentional way imparting a shock or movement to the panel while the said casting plaster is setting yet'leave the panel Having thus described my invention Idesire to secure by Letters Patent and claim 1. In an apparatus of the class described J the combination With a scaffold; of a rack mounted thereon having detachable sldes and ends; a platform operable within said rackand spaced on all sides 'f-rom'the frames composing said rack; and blocks and tackle on each end of said platform and rack to raise and loWer said platform within said rack. a I

2. In an apparatus of the class described the combination with a scaffold; of a rack "mounted thereon; a platform having less dimensions than said rack to provide a free space between the relatively movable Walls of the rack and said platform; and blocks and ropes operable thereon to 'raise and lower said platform within said rack and retain' it in position free at all times from contact with said rack.

'3. A coffer panel setting apparatus comprising a scaffold; a rack to be mounted on said scaffold; a platform of less dimensions than said rack operable therein with a free space between its outer dimensions and the inner dimension of said rack; and means to raise and lower said plat-form within said rack;

In testimony whereof I have afliXed my signature. I

J QHN M. GRIER.

copies of this patent may be obtained for five cents each, lay-addressing the Commissioner of Patents, i, Washington, D. G.

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