US2241857A

US2241857A - Fire fighting apparatus

Info

Publication number: US2241857A
Application number: US250823A
Authority: US
Inventors: Otto B Hisaw
Original assignee: Individual
Current assignee: Individual
Priority date: 1939-01-13
Filing date: 1939-01-13
Publication date: 1941-05-13
Anticipated expiration: 1958-05-13

Description

' May. 13, 1941.

o. B. HISAW FIRE FIGHTING APPARATUS 2 Sheets-Sheet 1 Filed Jan. .13, 1939 Inventor A fl BGJsaw By 2mm 6 WJQ u/ a m a Ff u w m j a h/ v, w u a w, a 9 flfl l f a w F 9 n 4 6 4 6 w I and A ttorneys May 13, 1941- o. B. HISAW FIRE FIGHTING APPARATUS Filed Jan. 13, 1939 2 Sheets-Sheet 2 lnventbr A iiorneys Patented May 13, T941 FIRE FIGHTING APPARATUS Otto B. Hisaw, Susanville, Calif. Application January :13, 1939, Serial No. 250,823

1 Claim.

My invention relates generally to firefighting apparatus for operation without a pressure water supply, and particularly to ambulatory apparatus of this character which will take water from any available water supply into a reservoir tank included therein, and discharge the water with sufiicient force forfire extinguishing purposes, and an important object of my invention is to provide a simple, eificient, and relatively inexpensive fire fighting apparatusof the character indicated which is especially adapted for use and operation in extinguishing grass, brush, and forest fires and fires occurring in communities lacking pressure water supply.

Other important objects and advantages of my invention will be apparent from a reading of the following description taken in connection with the drawings, wherein for purposes of illustration I have set forth a preferred embodimentv of my invention.

In the drawings- Figure 1 is a general side elevational view of the embodiment. v

Figure 2 is a top plan view of Figure 1. Figure 3 is a rear end elevational view thereof. Figure 4 is a fragmentary and enlarged top plan View of the vehicle transmission power takeoff partly in section.

Figure 5 is a fragmentary isometric schematic view showing the components of the embodiment in operative relation.

Referring in detail to the drawings, the numeral 5 generally designates the fire fighting apparatus of the present invention as a whole and this is made up of a suitable automobile truck involving a platform 6 mounted on the Wheeled chassis I to the rear of the cab 8, on which platform is mounted an elongated water tank 9 which is provided at longitudinal intervals with interior baifles I preventing surging of the water while the truck is in motion. The truck has a conventional transmission but having mounted on one side the power takeofi I2, as shown in Figure 4 which involves a gear box I3 having a gear I4 adapted to be moved by the control lever I4 into mesh with one of the gears of the transmission, the last-mentioned gear not being shown. The gear I4 is mounted on a jack shaft which includes the belt pulley I over which the belt I6 is trained. This belt I6 is also trained over the pulley H on a rotary force pump IB which is mounted on the forward end of the platform 6 at one side of the tank 9.

To the intake side of the force pump I8 is connected a pipe I9 to which is connected a flex- II conventionally located,

ible hose 2!] which is adapted to be placed in a suitable water supply such as a stream, lake, water barrel or the like source of water which may be available. shut-off valve 2| and between the valve 2| and the pump is the branch 22 which is equipped with a shut-off valve 23, the.pipe 22 being in communication with the lower part of one side of the tank 9.

The discharge side of the force pump I8 has connected thereto a pipe 24 which has on its upper end an L-shaped swivel joint 25 to Which is connected the flexible fire-fighting hose 26 which includes the stream controlling nozzle '21. The joint 25 has the shut-off valve 25. A branch pipe 28 is connected to the pipe 24 between the discharge side of the pump and the swivel 25, and this pipe 28 leads into the top of the tank 9,

the pipe 28 having a shut-off valve 29 located between the pipe 24 and the tank 9.-

By reason of the arrangements described the tank 9 may be filled with water coming through the flexible pipe 20 by opening the valve 2 I, shutting the valve 23 and opening the valve 29 with the force pump I8 operating, whereby the water drawn through the flexible pipe 20 will pass I through the pipe I9 up through the pipe 24, over through the pipe 28 and into the top of the tank 9. If desired the valves 23 and 29 may be closed, with the valve 2| open, and with the pump I8 operating, the water drawn into the flexible pipe 20 may be 'forced directly through the fire-fighting hose 26 for discharge upon the fire. In the event that the water in the tank 9 isthe sole 4 in the cab 8, and the rear end of this shaft 3| has thereon a beveled pinion 33 which is in mesh with another beveled pinion 34 on a rotary valve operating shaft 35 which operates the shut-01f valve 36 in a pipe 31 leading out from the lower part of the back of the tank 9. The pipe 31 has a downward bend 38 which terminates in communication with and in supporting relation to a transverse horizontalspray pipe 39 which is formed in its bottom with perforations to emit streams of water for the purpose of putting out The pipe I9 has therein the.

grass fires and the like, the same being under constant control by the operator of the truck by means of the handle 32.

Alongside of the pipe 35 and on the back of the platform 6 is a manual force pump 40 which includes the operating lever 4|, and the discharge side of this manual pump includes an intake pipe 4-2 which may be connected with a flexible intake pipe such as the pipe 20 leading from a suitable supply of water. The discharge side 01' this pump includes a gooseneck 43 which is adapted for connection to a suitable fire-fighting hose such.

as the hose 25. The manual pump is to be utilized in the event of failure of the force pump mechanism or in the case of an absence of water in the tank 9, and to prime the force pump when necessary.

Although I have shown and described herein a preferred embodiment of my invention, it is to be understood that I do not limit the application of my invention thereto, and any change or changes may be made in the structure arrangement of the parts within the spirit of :the invention and the scope of the subjoined claim.

Having described the invention, what is claimed as new is:

Means for delivering liquid to or of a motor vehicle comprising a pump driven a vertically arranged pipe connected with the outlet of the pump, a second branch line connecting said vertical pipe adjacent its upper end to the top of the tank for leading water from the pump into the tank, a I valve in said second branch line, an L sha'pe'd pipe'swivelled to the upper end of the vertical pipe and adapted to have a hose connected therewith and a valve in the L-shaped pipe.

OTTO B. HISAW.

from a tank