US1600787A - Means for making terrazzo floors or cast-in-place terrazzo tile - Google Patents

Description

Sept. 21,1926. 1,600,787

I L .ARDlT MEANS FOR MAKING TERRAZZO FLOORS; OR CAST IN.PLACE TERRAZZO TILE Filed May 29, 1925 2 Sheets-Sheet 1 ANGELO L.ARD|T I Fig.8. 0 A; W5

Sept. 51 1926. 1,600,787

A. L. ARDIT MEANS FOR MAKING TERRAZZO FLOORS OR CAST IN PLACE ,TERRAZZQ TILE Filed May 29. 1925 2 Sheds-Sheet 2 ANGELO. L.ARIJIT.

to make a simulation ofmarble.

Patented Sept. 21, 1926.

1 ANGELO EL. annrr, onenannvinw Emeritus, am...

' eans.roa yra rmeannnnzzomoons on oasr-m -rracn rnnnazzo TILE.

Application near/ra 29, 1325. serial No. 33,695.

This invention relates nore particuljarlyv to composition flooring of the variety known as terrazzo or 'cast "iniplace terrazzo tile which includes a foundation or"'undercoat usually ofconcrete and a superposed thereonlayer coinpoundedof small pieces of marble united togeth'er with a'suitable bond Heretd forebrass strips have beenused in laying the'terrazzo, such 'st'ripsbeing arranged to form panels or blocks and adapted to localize"cra-cking and also for the purpose-of ideveldping' .des'i 'ns, the upper "edges of such strip's constituting a leveling gauge to facilitate the applicationland' sni'oothingjof the superposed composition. Such brassstrips were'left inthe floor and constituted an item of considerable ex-pence:

The object of the present invention is to provide means to facilitate the laying of such floors and more especially such floors with decorative borders, and in carrying out my inventionl provide molding or forming and 'kerfing strips preferably of brass, fibre or othersuitable hard material which can be removed and reused over and over again thereby greatly reducing the expense as compared with floors'in which'the aforementioned brass stripsare embodied. Be-

1 cause my' strips are 'removableithe borders can be 'made'of any different colors to" suit the taste and fancyfofthe'owner ofthe building in which 'the floor is laid.

The invention is embodied in the examples herein shown and described the features'of novelty being finally claimed.

In the accompanying drawin'g Figure 1 illustrates'in perspectiveja short strip having a wide projecting head such as can be used'in the larger or wall border in connection with similar long strips for forming blocks surrounded by borders of cube designs.

Fig. 2 is a similar view of a long strip such as referred to in the description of Fig. 1 with a transverse tapered web at one end.

Fig. 3 is a. similar view of a long strip like that shown in Fig. 2 without the transverse end web.

Fig. i is a cross section of such a strip as shown in Figs. 1, 2 or 3 showing it inserted in the cement under coat or foundation and before the top coat or panels are laid.

Fig. 5 is a similar view showing thetop coat laid.

'cu'sl1ioiiing, stri1 3 of paper, V felt or" other y elding material applied for thepurpose' of Fig. 6 is a similar view showingfthestrip i removed from the two coats. V

Fig. 1s a view similar to Fig. t showing the cube border applied and also showing);"a

preventing or localizing cracking;

Fig.. 8'illustrates a modification of-"fo-rm' of. strip for permittingfthe' joining of strips to effectcontinuityof thedivi'sion of the fe'undation'into blocks. 7 Fig..9lis'.:i top plan view of a floor-laid accordingto my invention as it appears at the corner ofa room. a I i Fig. 10 is a plan view-of. the lower side ofv the strips as shown in Figs." 1, 2 and 3 arranged to prepare'the floor as shown} in Fig. 10, said view illustrating how' the formsof said 'stripsiwhen sojoined are adaiptedto score continuous.linesjaround a paneam along the wall border. Referring. more particularly to Figs. 1, 2 and 3the strips are formed of tapering cross section in the vertical webor'foundation penetrating portion the upper or thicgei' anargin being extended or offset lat erallyto fo'r'in ahead 16 to niolda'suitable channel or recess on thebed orundercoat 18 i for the reception of weaned cubes or tile-like blocks to -form anprnainental border. around the "11121111 panels o'r' squares of eral'face of thehead atli'fbe slightlybev eled or inclined from the lower corner uplward and' outward' frointhe 'p0TtlO11l5 to permit the withdrawal ofthat portion .of the strip froin the work without fracturing the edges of the panels. Some 'ofth'e strips, such as shown in Fig. 2, areforined with transverse penetrating portions 15 constituting angular continuations of the longitudinal portions.

In Figs. 4:, 5, 6 and method of using the strips as shown in Figs. 1, 2 and 3. V l

In practicethe foundation or undercoat 18 of the usual material and suitable'thickness is first laid and leveled and before it has hardened the tapered blades 15 are shoved into it as depicted in Fig.4; When the strips are so placed the head portions constitute the sides of molds for receiving and determining the thickness of the plastic 7 is illustrated the 5 cast in place panels 19 as shown in Fig. 5

the'upper surface of said heads forming guides to aid in levelingand smoothing the panels. After the blocks or panels 19 have sufficiently hardened so as not to slack down but beforethey have completely hard- [adapted to be taken with the fingers of the hand or toreceive a suitable lifting tool'.'

After .the floor is molded as illustrated in Fig. 6" and has completely hardened a strip of paper or roofing felt 21 may be placed i l the cut supplemented with a filling of plastic material 22to the level of the under coat; The space formed by the head is then filled with the cubes 0r tile-like blocks 23 ofthe same or different colors laid in with a suitable cementing liquid to hold them solidly in place. f A fraction of finished floor at the corner of a room asformed by the strips illustrated in Figs. 1, 2 and- 8 and the method of using them as described and illustrated in connection with Figs. 4, 5, 6 and 7 is shown in Fig. 91 where corresponding characters of reference 21, 22 and 23 have been applied to designate the paper or felt the plastic material of the p'anels'and the cubes respectively. The narrow panels 23 and small squares at the corners in this view form a wide border around the walls of the room .er side when arranged to form such a floor as illustrated in Fig. 9 it being noted that the transverse webs 15 aline with the main 1 webs 15 to form practically continuous divention as claimed; for example instead of stantial continuity of the penetrating portion ofthe stripat corners can be effected by'cutting away a portion of the head of cne strip as indicated at 25 in Fig. 8 so that the penetrating web at the cut-away end can have superposed on it the projecting head of another strip in any desired angular relation with the penetrating webs contacting.

lVith my construction the strips can be so arranged that some or all of the panels can be made of any desired polygonal design, which will be of especial advantage in forming ornamental central panels for'the floor.

' What I claim is: j I

r 1. Means to aid in the laying of plastic terrazzo floors and other surfaces which in clude panels andornamenting linesof cubes adjacent thereto, said means consisting of. a

removable strip having a tapered blade-like concrete-bed-penetrating portion to form a panel-cracking localizing recess in said bed, and a head portionprojecting laterally from the thicker edge of said strip adapted to form aside of a panel mold and also to leave a seat upon said bed adjacent the panel 'forthe reception of said cubes.

2. Means to aid in the laying of plastic terrazzo floors and other surfaces Which inolrde panels and ornamenting lines of cubes adjacent thereto, said means consisting of a removable strip having a tapered bladelike c0ncretebed penetrating portion to form a panel-cracking localizing recess in said bed, and a head portion projecting laterally from the thicker edge of said strip adapted to form'a side of a panel mold and also to leave a seat upon said'bed adjacent the panel for the reception of said cubes, said penetrating blade having a fractional portion similar in form to the blade standing at an angle thereto below said laterally projecting head portion to extend the panelcracking localizing recess around the corner ANGELO L. ARDIT.

of a panel.

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