US1332232A - Trowel - Google Patents

Description

B. J. PARKER.

TRowEL APPLICATION FILED OC T.21 1917. I 1,382,232, Patented Mar. 2, 1920.

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D 6 s s .o u 4 2 .Q5 l n 7 4 /l A' ,Il wia/f g la 2 18V ATTORNEYS.

B. J. PARKER.

TROWEL.

APPLICATION FILED ocT.2. 19u.

1,382,232, Patented Mm'. 2, 1920.

2 SHEETS-SHEET 2.

i CTD fix- BY If A TORNEY5 BARTON J. PARKER, 0F HOUSTON, TEXAS.

TROWEL.

Specification of Letters Patent.

Patented Mar. 2, 1920.

Application filed October 2, 1917'. Serial No. 194,329.

specially designed for applying plastic material in the formation of structures formed of concrete or other similar material and having hollow walls. The trowel may also be used in the formation of wainscoting and finishing and in fact wherever it is necessary to apply plastic material in the construction of a wall, vessel or other structure.

Another feature resides in the provision of an implement whereby the plastic material may be applied in a smooth and uniform layer to the lathing, studding or other framework.

A further feature of the invention resides in the provision of a trowel to which the plastic material, to be applied, is delivered by means of controllable fluid pressure.

A still further feature resides in the provision of a trowel which is specially designed for use in the construction of boats and water craft formed of concrete or other similar material and having curved Walls or sides.

With the above and other objects in view, the invention has particular relation to certain novel features of construction, operation and use, an example of which is given in this specification and illustrated in the accompanying drawings, wherein Figure 1 is a side elevation of the complete device.

Fig. 2 is an edge view thereof.

Fig. 3 is a transverse sectional view taken on the line 3 3 of Fig. 5.

Fig. 4 is a top plan view of the trowel proper.

Fig. 5 is a fragmentary transverse sectional view of the device.

Fig. 6 is a fragmentary sectional view thereof, taken on the line 6-6 of Fig. 5.

Fig. 7 is a side view of a modified form of the trowel designed to be used in constructingI curved walls.

Fig. 8 is an edge view of said modified form, and

Figs. 9 and 10 are fragmentary vertical sectional views thereof.

Referring now more particularly to the drawings wherein like numerals of reference designate similar parts in each of the figures, the numeral 1 designates a container provided with a covering 2 and Xed in the upper part of which is a hopper 3 which is provided to receive a quantity of plastic material. The hopper has an outwardly flared discharge opening which is controlled by a correspondingly flared valve 4. This valve is pivoted to the inner end of a lever 5 which in turn is pivoted to the bail 6 bv means of which the container is supported. The remainder of the container has an upstanding arm 7 whose upper end 8 is bent over and receives the set screw 9 which is threaded therethrough. When the outer end of the lever 5 is engaged under said screw, the valve 4 is held tightly closed. When it is desired to open the valve, the outer end of said lever may 'be disengaged and elevated, which will operate to lower the valve and permit the discharge of the plastic material from the hopper 3 down into the container 1. The container is provided with an agitator 9 of any desired form which may be manipulated through the crank 10, so as to overcome the tendency of the material t'o set while in the container. The numeral 11 refers to the trowel which is formed of the required dimensions to fit between the studding 12, 12, and the lathing 13, 13, of the wall framework and is held spaced a uniform distance from said studding and lathing by means of outwardly projecting fins 14 and l5. The upper part 16 of the tro-wel is reduced and tapers to an apex and fitted thereover but spaced therefrom is the hood 17 which is fixed relative to the trowel by means of the oppositely disposed transverse bridges 18, 18, which are soldered or otherwise secured to the sloping edges of the trowel and to the sides of the hood 17. The upper ends 19, 19, of these bridges are left free and are upwardly turned, thus spacing said free ends apart. The upper part of the hood is formed into a neck 20 to which the casing of the valve 21 is secured. A conduit 22 leads from the container 1 and is controlled by said valve 21 and discharges the plastic material fromsaid container through the hood 17.

The stem of the valve 21 ,has an operating lever 23 fixed thereon .to the free ends of which are attached operating cables 24, 24, through which the valve may be opened and closed by means ofthe operating lever 25 to which said cables are attached.

.In building a vertical wall, the trowel is let down between the studding 12 and lathing 13 to the bottom of the wall, as'shown in Figs. 1 and 2, the entire device being neck 20 is separated byy the upwardly turned ends 19, 19, and a part of it diverted toward each end of the trowel and the remainder thereof passes between said upwardly turned ends and is separated by the apex of the trowel passing on each side of the trowel so that a uniform quantity of material will be delivered to the ends and sides of the trowel and the upwardly turned ends 19 are left free so that they may be` forced toward each other or spread apart, as desired so as to regulate the quantity of material to be delivered to the ends and sides respectively, of the trowel. While the material is being delivered, the trowel is gradually elevated and as it moves upwardly toward the top of thewall, it is held spaced froml the studding and lathing Iby the fins 11 and 15 and a sufficient quantity is delivered so that it will entirely fill the space between the trowel and the studding and lathing and will be forced through the reticulated studding and lathing and" may then be smoothed by the ordinary 'hand trowel applied to the outside of the Wall, thus forming a smooth outer finish as 27 so that when the wall is completed the studding and lathing will be completely in'- cased inl plastic material, which when it hardens will form a monolithic structure.

In order to prevent the clogging of the material in the conduit 22, I have` provided fluid pressure conduits 28 and 29 which lead from the pipe 26, are controlled by the rethe conduit 22 will preferably be formed of v a flexible hose or ipe and the container -1 swung from a statlonary support.

This form of trowel is also specially adapted for use in the construction of boats yand water craft built of concrete and other similar material. Inasmuch however as the walls of watercraft are curved, the trowel 11 has been formed of sections jointed together, as shown in Figs. 9l and 10 to permit a certain amount of flexibility so that in applying the material, the trowel will readily follow the curved contour of the wall, as shown in Fig. 8.

What I claim is:

1. A device for applying mortar to the curved walls of ships and the like comprising an elongated flexible trowel, said trowel being formed of sections hinged together having substantially flat parallel side faces, a conduit communicating ,with the exterior of said sections through which plastic material is delivered into the path of said sections and means on both side faces of said sections for spacing said sections from the walls duit communicating with the exterior of said trowel through which plastic material is delivered to the space between said wall and said side faces, said trowel being fiexible throughout its entire length to accommodate said trowel to the curvature of spaced curved Walls. v In testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses.

BARTON J. PARKER. Witnesses:

E. V. HARDWAY, FLORENCE JOHNSTON.

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