US2074326A - Nozzle holder - Google Patents

Description

March 23, 1937.

H. W. DAWSON NOZZLE HOLDER Filed Deo. 8,' 1954 /N VEN TOR v m y a M D R 0 W 4 m Patented Mar. 23, 1937 y UNITED STATES NOZZLE HOLDER Horace W. Dawson, United States Army,

Fort Lewis, Wash.

Application December 8, 1934, Serial No. '756,583

2 Claims.

(Cl. 24S- 75) (Granted under the act of March 3, 1883, as amended April 30, 1928; 370 O. G. 757) This invention described herein may be manufactured and used by or for the Government for governmental purposes, without the payment to me of any royalty thereon.

This invention relates to a new and useful improvement in nozzle holders, more particularly it is directed to a holder for -nozzles used on a fire hose.

One of the objects of my invention is to provide a holder for nozzles which is adapted to be secured to a convenient place on the running board or the like of a re truck so that the nozzle will be available for instant use.

Another object of my invention is to provide a nozzle holder which is so constructed that the nozzle will be held in a fixed position and will not work loose even when the trucks are traveling over the rcughest of roads in answer to an alarm.

Another object of my invention is to provide a holder for nozzles which is adapted to be easily and quickly operated for releasing .a nozzle therefrom or to return the nozzle thereto.

Still another object of my invention is to provide a nozzle holder which is formed in an attractive manner to conform with the rest of the furnishings and equipment of the re trucks and to enable it tovbe exposed to view without detracting from the appearance of trucks of this character.

With the above and other objects and advantages in view, etc.:

Fig. 1 is a top plan view of my improved nozzle holder;

Fig. 2 is a cross-sectional view thereof taken on line 2-2 of Fig. 1;

Fig. 3 is a top-plan view with the upper portion of the holder cut away therefrom; and

Fig. 4 is an enlarged side elevation of a bolt used in carrying out my invention.

In the illustrated embodiment characterizing my invention, I indicates an inverted cup-shaped supporting base having an inverted cup-shaped cam member 2 rotatably mounted thereon. An operating handle 3 is detachably secured to the cam member 2 for rotating the same upon the base l to expand or contract certain nozzle engaging sectors 4.

'The supporting base I` is shaped to provide'a flat plate-like upper portion v5 having a cylindrical portion 6 extending downwardly therefrom containing an outwardly extending apertured flange' l on the lower end thereof which is secured to the running board or platform 8 upon which 55 the holder is mounted by the bolts 9 provided with a nut I0 on the lower end thereof as shown in Fig. 2. The cylindrical portion 6 of the base I provides a spacing between the upper portion 5 thereof and the running board, 8 which allows the interior of the base I to be cleaned and permits a part of my operating mechanism for the engaging sectors 4 to extend downwardly therein. The upper portion 5 of the base I is provided with a centrally located threaded aperture II and a series of arcuate guide slots I2 which are symmetrically cut about the aperture II and struck therein eccentrically with respect thereto.

The cam member 2 is circular in form, the same having a diameter substantially equal to the diameter of the cylindrical portion 6 of the base I and comprises a flat upper plate portion I3 having a cylindrical portion I4 extending downwardly fromA the periphery thereof which is adapted to rotatably seat on said base. In order to guide the cam member 2 on the base I and to prevent dirt or the like from getting into the interior thereof a circular groove I5 is cut around the lower end of the cylindrical portion I4 which vprovides a projecting portion I6 that is adapted to abut against a shoulder Il provided on the base I. The plate portion I3 of the cam member is provided with a central pivoting aperture I8 and a series of straight guide slots I9 which are cut radially therein from the pivoting aperture as a center. The cam member 2 is pivotably and oscillatively connected to the base I by means of a center bolt 20 having a reduced threaded portion 2l on the lower end thereof providing a shoulder 22. The bolt 20 engages the pivoting aperture I8 of the cam member 2 with the head 23 of the bolt fitting against the upper surface of the cam member. The reduced threaded end of the bolt passes through the aperture I I of the base I and is provided with a nut 24 for locking the bolt in place, the shoulder 22 thereof fitting against the upper surface of the base. A slot 25 is provided in the central portion of the bolt 20 in which one end of a plurality of springs 26 are keyed, the construction and operationfof which are hereinafter described.

Each engaging sector 4 is provided for action through a bolt 2l, engaging a radial slot I9 of the cam member 2 and an arcuate slot I2 of the base member I. The sectors 4 are arranged in circumferential alignment upon the cam member 2, each comprising an arcuate-shaped nozzle engaging upstanding portion 23 having threads 2S provided on its outer circumference and a base portion 30 at its lower end which is adapted to bear against the upper surface of the cam member 2 and straddle a radial slot I9 provided in the cam member 2, said base portion 3l) being provided with a square undercut socket 3| and 5 an aperture 32 which is centrally located with respect -to said undercut socket 3l. The undercut socket 3l and aperture 32 are provided for the reception of the upper end of the bolt 21 which is illustrated in detail in Fig. 4 of the drawing, said bolt 21 comprising a reduced upper end portion 33 which is threaded at the outer end thereof, a square portion 34 adjacent to said portion 33 and a round portion 35 adjacent to said square portion, said round portion 35 of the bolt terminating in a reduced lower end portion 36 threaded at its outer end. The upper end of the square portion 34 of the bolt 21 is adapted to fit into the socket 3l of the sector 4 with the reduced upper end 33 thereof projecting through the aperture 32. A nut 31 is provided on the upper end 33 of the bolt for holding the upper end of the square portion 34 within said socket 3l ofthe sector 4, whereby the sector is prevented from rotating on its own axis. The

bolt 21 of each of the sectors 4 projects downwardly therefrom through a radial slot I9 provided in the cam member 2 through an arcuate slot I2 of base member I, and is provided with a nut 33 which is adapted to bear against the U0 under surface of the portion 5 of the base member I and to straddle the slot I2, said nut 33 being locked in a xed position by any suitable means such as a cotter pin 39 or the like. The square portion 34 of the bolt 21 is adapted to work in a radial slot I9 of the cam member 2 and the round portion 35 thereof bridges the space between said cam member 2, and base I.

A sleeve roller 4I) is fitted around the reduced round-end portion 36 at the lower end of the 40 bolt within the arcuate slot I2 of the base for reducing friction and the like.

The arcuate shaped portions 28 of the nozzle engaging sectors 4 form segments of a circle and are adapted to engage the inside of the nozzle to be mounted thereon, the threads 29 provided thereon being of the correct size to correspond with and engage the internal threaded portion forming the end of the nozzle. Thus, when the nozzle is being heldin my holder, it has virtually the same firmness and rigidity as would be the case if the nozzle were secured down upon a threaded plug fastened to the running board of the truck. The springs 26 are provided for insuring that the nozzle engaging sectors 4 will be rmly held in engaged position with the nozzle to be held and to keep the sector bolts 21 from binding in the slots I2 and I9 of the base I and cam member 2, respectively. The springs 26 are spirally wrapped around each other and are keyed by one end in the slot 25 provided in the center bolt 20 as above described, one of each of the other ends of said springs being suitably attached to each of the sector bolts 21 at the rounded portion 35 thereof.

In operation assuming that the nozzle engaging sectors 4 are in an operative position as illustrated and the nozzle to be held is mounted thereon, and it is desired to remove the nozzle therefrom, the handle 3 of the cam member 2 is moved in a counter clockwise direction thereby rotating the cam member 2 on the base member I. This relative movement of the cam member 2 upon the base member I will cause each of the sectors 4 to move inwardly in contracting cir- 5 cumferential alignment toward the innermost ends of the slots I2 and I9 of the base member I and cam member 2, respectively, against the action of the springs 23, due to the cam action of the pair of slots l2 and I9 engaging each of the sector bolts 21 of the individual sectors 4. To return the nozzle engaging sectors to an operative position, the handle 3 is rotated in a clockwise direction, thus causing relative rotation of the cam member 2 with respect to the base member I which in turn spreads the sectors 4 in circumferential alignment upon the cam member 2 due to the cam action of the slots I2 and I9 of the base member I and cam member 2, respectively, engaging each of the sector bolts 21 of individual nozzle engaging sectors 4, the springs 26 being of sufficient strength for holding the sectors 4 firmly in an engaged position with the nozzle.

It will thus be seen that I have provided a highly novel and useful form of nozzle holder which is well adapted for speedy dismounting of the nozzle end for all the other purposes indicated. Even though I have herein shown specic features of construction and operation of parts, it is nevertheless to be understood that various changes may be made therein without departing from the spirit and scope of my invention.

Having described my invention, what claim as new and wish to secure by Letters Patent, is:

1. A holder for a fire hose nozzle comprising in combination an inverted cup-shaped base adapted to be rigidly secured to a fire truck, an inverted cup-shaped cam member mounted rotatably on said base, an aperture located centrally in said cam member, a bolt fitted into said aperture for connecting pivotally said cam member to said base, said bolt adapted to project through said base and to be held in position thereon, means for rotating said cam member on said base, a plurality of radial slots provided in said cam member and a plurality of arcuate slots in said base, said arcuate slots being arranged symmetrioally and eccentrically with reference to said pivoted connection, nozzle engaging sectors reciprocally mounted on said cam member, a bolt connected to each of said sectors and mounted in a slot of said cam member and base, said nozzle engaging sectors upon the movement of said cam member on said base being adjusted to or away from said pivoted connection by the cam action of said slots upon the bolts of said sectors, and a plurality of springs spirally wrapped around each other and housed within the said cup shaped cam member, one end of each of said springs secured to said pivoted connection, and one of each of the other ends thereof secured to one of the bolts of said sectors, whereby said sectors are held detachably in engagement with said nozzle.

2. A holder for a nozzle comprising in combination a base, a cam member having a pivotal connection with said base, means for oscillating said cam member relative to said base, a plurality of radial slots provided in said cam member and a plurality of arcuate slots in said base, nozzle engaging sectors reciprocally mounted on said cam member, a bolt connected to each of said sectors and mounted in a slot of said cam member and base, and a plurality of springs spirally Wrapped around each other, one end of each of said springs secured to said pivotal connection and each of the other ends of said springs being secured to one bolt of said sectors respectively, whereby said sectors are held detachably in engagement with said nozzle.

HORACE W. DAWSON.

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