US2249401A - Calking gun - Google Patents

Description

E. H. SIEG Jul 15, 1941.

CALKING GUN Filed April 25, 1938 INVENTOR WITNESS ATTO R N EYS Patented July 15, 1941 UNITED. STATE CALKINGGI'INY' v Emil n. s'ieg, West De me is. 7 Application Ami-i125, 193s, ser arnwzog ss j 2.01m. (or. 184.5) V I The invention relates to a pointing or crackfilling tool.

The primary object of this invention is the provision of a gun of this character, wherein the discharge "head thereof carries a tip of resilient material such as rubber, the latter being open for a ribbonfeed of the material carrie'd'within the gun and such tipis separable for'the substitution of another tip, these being of a particular shape and design to allowflforcing 'the'material gun will not be forced out between the header nozzle of the gun and the surface against which the gun is applied, also to avoid marring of surfaces in the use of the gun for filling cracks or otherwise.

A further object of the invention is the provision of a gun of this character, which is simple in its construction, thoroughly reliable and eflicacious in operation, readily and easily filled with material, easily cleaned, easy of operation, con-' venient for handling, strong, durable and inexpensive to manufacture.

With these and other objects in view, the invention consists in the features of construction, combination and arrangement of parts as will be hereinafter more fully described, illustrated in the accompanying drawing, which discloses the preferred and modified forms of embodiment of the invention and pointed out in the claims hereunto appended.

In the accompanying drawing:

Figure 1 is a plan view of a gun partly in section constructed in accordance with the invention.

Figure 2 is a sectional view taken on the line 2-2 of Figure 1 looking in the direction of the arrows.

Figure 3 is an end elevation.

Figure 4 is a perspective viewof one of the releasable tips.

Figure 5 is a fragmentary vertical longitudinal sectional view through the gun showing another spending parts throughoutthe several views in the'diawing. Referring to the'drawing in detail, the gun constituting, the present invention comprises a cylinder I0, preferably made from'metal, being of uniform cross sectional diameter throughout its extent and open at opposite extreimities' thereof while provided at the extremities'exteriorly thereof are screw threads II for the detachable fastening of a closure cap l2 at 'one extremity uponfsaidcylinder while at the other, extremity the detachable fastening of a delivery nozzle or, head l3 thereto, the said head or nozzle beinghereinafter fully described.

Operating within the cylinder I0 is a piston V l4, 'equipped with a cup-shaped leather, the stem l5 being carried through a clearance l6 in'the cap l2, the said clearance being centrally located in the cap and the outermost end of the stem is fitted with a'hand knob ,I! so that the piston I4 can be operated for reciprocation within the cylinder ill in the use'of the gun. The cylinder I0 is filled with caulking or crack-filling material or substance that is to be dispensed from the un through the end of said cylinder carrying the head or nozzle l3, which is readily removable from the cylinder. The head or nozzle [3 is formed with a nipple l8 fitted with a gasket l9.

and this nipple is engaged on the cylinder I0 at the threaded extremity of cylinder provided therefor, the gasket being for the purpose of preventing leakage at' the connection between the e head or nozzle and the said cylinder.

The head or nozzle l3 has communication with the cylinder l0 through the opening 20 provided. in the threaded end or the rear wall of said head" or nozzle. This head or nozzle I3 is provided,

said slot or opening 23 in a ribbon-like form and being waved in a transverse direction effective for a zigzag lay with respect to a piece of work. This has been found essential when filling cracks in plastered walls or ceilings which said cracks are mostly of an irregular shape or form.

The opposite side, ends and front walls of the reduced end 22 of the head or nozzle l3 are fiattened. or straight for the separable fitting with thisend 22 of a changeable tip 24 or 21 hereinafter fully described.

The changeable tip 24 isin the form of a cupped body made from resilient material such as rubber, the cupped side effects a pocket or recess 25 for accommodating the end 22, being similarly shaped thereto, and in the front wall of the said tip 24 is a slot or opening 26, companion to the slot or opening 23 in the head or nozzle 13. The front wall of the tip 24 is straight or flat and similarly the opposite ends and sides of the body of said tip are fiat or straight. The tip 24 is usable with the head or nozzle when forcing the material frorrithe guninto cracks or crevices on the fiat surfaces of walls or ceilings and the tip 21 is usable when forcing the material from the gun into cracks or crevices in corners, such as where the wall joint ceiling and other contracted places. The tips, which are made out-of a resilient material such as rubber, act as a gasket be tween the head or nozzle and the surface to which the same is applied thereby preventing any of the material or substance from being forced out at this point and as the material or substance is prevented'from being forced out'atthis point it has tog-mm the crack or crevice as pressure is applied on hand knob H.

Itis desirable or" preferable to have the fiat front of the tip make contact with the work'and that the slot or opening 26 register closely with thecrack or other space therein so that the material can, bedeliver'ed intosame when dispensed fromthe gunin the'use thereof. The resilient characteristic of the body of tips 24 and 2'! prevents marring of 'work in the use of the gun and also prevents the material that is being dispensed other 'substanceto be'applied to work by detachinghead or nozzle I3 from the cylinder, drawing piston back to the cap I! 'as far as it will go and filling cylinder at the open end thereof.

The tip 24 serves as an adapter for use with the gun when filling cracks on fiat surfaces while the tip 21 serves as an adapter for use with the gun when filling cracks in corners or other contracted places. With head or nozzle l3 and tip 24 or 21 it is possible to cork or fill cracks on any part or section of a wall or ceiling.

When the gun is filled, the inward stroke of the piston dispenses the material through the nozzle or head and through the tip fitted therewith and in this manner enabling the filling of vacant spaces, cracks, joints or the like in the use of the gun. Material to be used for filling cracked plastered walls is in a fluid or solution state, such as paint, paint and varnish mixed together or wall sizing mixed quite thick or about the consistency of paint or any other solution that would prove satisfactory for filling cracks in plastered walls, being understood, of course, that the material to be used must be in a fluid or solution state or soft so that it can be conveniently dispensed from the cylinder In of the said gun in the working of .the piston l4. 1

What'is claimed is: r T

1. A calking gun, comprising a cylinder, a fpiston therein, a nozzle removably'secured to one end of the cylinder and of a flat form having one wall approximately in a planewith the wall of the cylinder, and a beveled wall forming 'a'reduced oblong discharge end provided" with. a ribbon forming discharge slot extending across the same in a plane with the wall ofthe cylinder.

'2. A calking gun, comprising a cylinder, a piston therein, a nozzle, removably secured to one end of the cylinder and of a flat form having one wall'approximately in a plane with the wall of the cylinder, a beveled wall forming a reduced oblong discharge end provided with a ribbon forming discharge slot extending across the'same in a plane with the wall of thecylinder, andan elastic nipple frictionally held on the oblong end and having a ribbon forming slot corresponding with the slot in the'nozzle. I

' EMIL H. SIEG.

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