US958419A

US958419A - Manufacture of fireproof partitions.

Info

Publication number: US958419A
Application number: US52139509A
Authority: US
Inventors: Donald Mowat
Original assignee: Individual
Current assignee: Individual
Priority date: 1909-10-06
Filing date: 1909-10-06
Publication date: 1910-05-17
Anticipated expiration: 1927-05-17

Description

D. MOWAT. MANUFACTURE 0F FIREPROOP PARTITIONS.

APPLICATION FILED 00T. 1909.

958,41 9. Patented May 17, 1910.

2 SHEETS-SHEET l.

INVENTOR DONALD MOwAT BY .Y

' Has AT Knrx1 D. MOWAT. MANUFAGTUBE 0F FIBEPBOOF PARTITIONS.

A APPLICATION FILED 00T. 6, 1909. 958,41 9, Patented May 17, 1910.

'2 SHEETHHBBT 2.

. 1 t l L' L A LI WITNESSES l INVEHTOR DONALD MowAT MM v v H15 ATTORNEY.

DONALD MOWAT, OF' SAN FRANCISCO, (.'ALIFORNIA..v

MANUFACTURE OF FIREPROOF PARTITIONS.'

Specieation of Letters Patent. Patented May 1'?, 1910.,

Appncationmea october s, 190s, sealara. 521.395.'

To all 'whom t may concern:

Be it known that I, DONALD MowAT, citizen of the United States, residing in. the city and county of vSan Francisco and State of California, have invented new anduseful Improvements in the Manufacture of Fireproof Partitions, of which the following is a specification. i

This invention relates to the construction o f partition walls in freproof buildings, and pertains particularly to forms for use in molding partition walls kof plastic materials.

It .is the object ofv this invention to provide means by which partition walls can be molded or cast in place, so as to form practically a. monolithic wall of cement or other plastic materials without the use of studding, lath or other reinforcements.

A further object is to provide a form for constructing partition walls that can be quickly and readily assembled and distributed, and which can be easily and accurately plumbed and set to a line. These forms are so designed andl constructed that they can be set up, the partition walls cast, andthe forms removed without requiring skilled labor, then by the use of a plast-ie mixture, consisting of hard wall plaster and sand, in approximately. the proportions of one part plaster to three parts sand, a very cheap and substantial partition wall is produced.

Any desired plastic mixture may be used, such as ordinary concrete, cement andthe like, but the above mentioned preparation is particularly advantageous, as it sets quickly and permits of the removal of the `forms within a few hours after casting, thus enablingy very rapid construct-ion.

By the use of this invention partition walls canbe Vbuilt truer, smoother and of more even surface than is ordinarilythe case where lat-h and. plaster are used.

The invention Vconsists of the parts and.

the combination and construction. of parts as hereinafter more fully described. and

claimed, having reference tothe accompanying drawings, in which-K Figure 1 is aside elevation of the invention. Fi 2 is. an end view. Fig. 3 isla horizonta section on the line X-X, Fig. 1. Fig. 4 is a plan section showing the application of the forms in the construction of long' partitions. Fig. 5 is a similar view showing how a partition wall is constructed and'c'onnected with a cross wall. Fig; 6 is y1s approximately in the a detail' in perspective showing -hovvI the partition is finished at'the ceilingy line. Flg.- 7 is a view of; a se arator. Fig. 8' is av detail' in perspective of the adjustabley end.A stud. Fig. 9 is av View of a. slat. Fig.- 10 shows the lychannel used at the joiningof cross. vvalls.l Fig. 11 is a view of a. gage.

Inthe drawings A represents the.A sidemembers or panels of the .for-ms, and` theseA panels are of suitablesize, shapeand' material. Preferably they are-of wood: coated:

with. preservative materials, but in. some. instances sheet metal; plates may beemployed. The panels areusu'ally of a length equal to the section of wall or partition to.be cast, and each panel is provided.- at intervals: on its outside abouta foot apart with4 transverse slats 2, each of which has. a. projecting tongue 3 on one end and is forked at thez of attaching theslatsto the panels Au screws.

8 are employed in the usual manner. Each; Slat 2` isperforated. at 16 and has theoppositely extending outwardly offset projections or lugs 1.7 on each side of a. hole 16 toform.

a cleat for securing a tie wire 15y bywhich the panels are kept fromI spreading; all; as"

will` be shortly described. The' end panels 9 lof the form are constructed of' rectangular studs, of a width equal.A the required.

so that when a slat is'secured.v

thickness ofthe partition. A rectangular strip 10 is secured to the inner face of each stud or end panel 9 so as toform. a groove or channel 11, Figs. 4-5, in each end of.y a, cast section. Theupper endof each stud.

9 is fitted with an adjustable clamp consisting of cross arms 12, 12', 12a, preferably extends centrally and. rearwardly ofthe stud- 9, and. in the-plane of the mold or partition, the other two, 12, 12 rojecting at right angles thereto. Vlling bolts 13, 13', 13aare threaded in the outer rends of the respective arms 12, 12', 12a and are sharply pointed three in. number, Fig. 8, one of which, 12,

at their upper ends so as to bite when bearing -against a surface, as the ceiling or an overhead beam.

The operation is as follows: To construct a monolithic partition extending between a floor and a ceiling, by means of this invention, a line is first drawn'upon the floor or ceiling, or both, along which the partition is to be erected. The upright studs 9 are then placed in position, as shown in Fig. 1, and the rear bolts 13a screwed into the ceiling 14 so as to hold the studs. The bolt 13a acts as a pivot around which the upper end of the stud may swing so as to adjust it perpendicularly and in true alin'ement` whereupon the remaining bolts 134-13 are screwed tightly against the ceiling, thus retaining the stud in an upright rigid position. The bottom side panels A are then placed on both sides of the ystuds 9, as shown in Fig. 2. A wire 15 is then passed through a hole 16 in each of the slats 2 and through the mold to bind the opposed spaced panels A together, as shown in Figs.3, 2, 6; the ends of the wire being securely held by winding it around the cleats 17. Separators 18 are placed astride of the wires 15 between the panels A, so as to govern the width of the space between the sides. The separators being of a length equal to the width of the studs 9 insures the completed partition being of equal thickness throughout. The slats on the lowermost course of side panels are provided with additional holes 16 and cleats 17 v so that additional cross tie wires can be used to avert the spreadin of the lower panel bythe weight of the p astic mixtures. After the lowermost course of panels are secured in place, the upper ties are set thereon, with the lower ends 3 of the slats 2 engaging the slots 4 of the slats beneath. The sides are tied together through each slat, as before described, separators 18 being placed over the wire ties 15 at suitable intervals. The separators 18 are constructed with a hook 19 to catch over the wires 15, and have end flanges 20 which bear against the insides of the panels A. A set of tie wires 15 are passed through the end slats outside of the studs 9 so that the latter will not be pressed outward by the materials in the form. The mold is thus built up to within fifteen or eighteen inches, more or less, of the ceiling when the plastic material of which the partition is to be built is poured in at the top in av suitable manner, as through a hopper 21.

In order to support the cast partition section after the mold is removed, there are inserted into the top of the mold and into the fresh plaster certain braces 22, which have flat projecting heads 23 to bear against the ceiling. When plaster sets and the forms are removed the partition will be rigidly held against any sidewise or tipping move-4 ment. In order to take down the mold the wires 15 are cut and afterward withdrawn or trimmed even with the walls of the cast partition, or they may serve as bonds for wall iinishing slabs of marble, etc. space between the top of the partition wall and the ceiling may be illed with blocks 25, or in any other suitable manner. The blocks 25 are provided with grooves or channels 26 on their outer edges which form a tie when filled with cement, thus binding the partition wall to the blocks 25 and ceiling 14. Where one of these cast partitions is to be connected to a Wall or cross partition, I employ channels 27, preferably constructed of sheet metal which are secured to out-y side walls or cross partitions into which channels the cast partition is molded by tying the panels A of the form against the outside of the channel, as shown in Fig. 5, the upright stud being dispensed with in this case.

Ordinarily, in the construction of long partitions a number of sections are cast on a line and allowed to harden, with spaces or intervals between their ends as shown in Fig. 4. The sides A of the form are then tied across the intervening space, as shown, the studs 9 being omitted. The materials are then poured in the usual manner, and flowing into the grooves 11 form a substantially monolithic wall.

Door and window frames may be set in position inside the form as shown by dotted lines in'Fig. 1, and the materials poured around them, thus embedding the frames within the wall.

A gage 28, such as shown in Fig. 11, may be employed in conjunction with or in lieu of the separators 18 as a means of governing tllie width of the space between the side pane s A.

Having thus described my invention, what I claim and desire to secure by Letters Patent is- 1. A mold for manufacturing partition `structures, said mold comprising a series of side panel members and means for locking them together to form two side walls of a mold, said locking means including crosswise extending slats, each formed with a tongue at one end and a slot at the other, the said slot being formed between two spaced members, the inner one of which is off-set beyond the inner sideof the slat and is adapted to lit a slot formed in the edge of the panel, bonding wires passed through the opposed panels, and spacingl members supported by said bonding wires and havlng.

end portions parallel with and bearing against the inner sides of the panels.

2. A mold for manufacturing partition structures, said mold comprising a series of side panel members and means for locking The them together t0 form two side walls of a mold, said locking means including crosswise extendin slats each formed with a tongue, the said slot. being formed between two spaced members, the inner one of whlch is of dove-tail form in cross section and is off-set from th) inner side of the slat and is adapted to fit a corresponding slot in the edge of the panel, bonding wires passed through the opposed panels, and spacing members supported by the bonding wires.

3. A mold for manufacturing partit-ion structure, said mold comprising a series of side panel members and means for locking them together to form two side walls of a mold, said locking means including crosswise extending slats each formed with a tongue at one end and a slot at the other, the said slot bein formed between two spaced members, the inner one of which is of dovetail form in cross-section and is oil-set from the inner side of the slat and is adapted to lit a correspondin slot in the edge of the panel, bonding wires passed through the opposed panels and spacing members supported by the bonding wires, said spacing members having hook-shaped anges along one edge adapted-to hook over the bonding wires, and said slats having olf-set cleats" on their outer sides to which the wires are secured. et. A mold for partition structures consisting of a series of panel members adapted 'screws passin to be'assembled together to inclose a mold space, each of said panel membershavin .crosswise extending slats, each s lat forme with a tongue at one end and a slot at the other, the slotted portion of the slatpbeing formed by a pair ofrlanges, with one of the flanges bent inwardly and having a vertical portion with dovetailed edges to t a` corresponding dovetailed slot in the edge of the panel, and said slot lying approximately in the plane of said slat.

5. A mold for partition structures comprising side panels and end panels, means for locking the parts together,'and clamping means on the end panels adapted to engage the ceiling, said clamping means including horizontally extending arms and adjusting through said arms and engaging the cei ing at a plurality of points.

6. A mold for partition structures comprising side panels and end panel members, v

means for locking the parts together, and the end panels having clamping means to engage the ceiling, sa1d clamping members comprising crossed arms on eachend panel,

and said arms having adjusting screws offset from their supporting panel member.

In testimony whereof I have hereunto set my hand in the presence of two` subscribing wltnesses.

. DONALD MOWAT.

Witnesses