US1660081A - Fire-extinguishing system for motion-picture booths - Google Patents

Description

Feb. 21, 1928. 1,660,081

G. A. MEARS FIRE EXTINGUISHING SYSTEM FOR MOTION PICTURE BOQTHS Filed July 20. 1926 3 Sheets-Sheet 3 as d I throw Patented Feb. 21, 1928.

UNITED STATES I 1,660,081 PATENT OFFICE.

GEORGEJA. MEARS, 0F NEWBERRY, PENNSYLVANIA.

FIRE-EXTINGUISHING- SYSTEM FOR MOTION-PICTURE BQQTHS.

Application filed Jul-y 20,

This invention relates to a fire extinguishing system for motion picture booths and is designed primarily for use in connection with apparatus such as disclosed, for example, in my co-pen-ding application filed June 11, 1926, Serial No.- 115,309. 7

It is an object of the present invention to provide an arrangement of nozzles for de livering fire extinguishing fluid at the point or points where ignition occurs, the operation of the apparatusbeing automatic.

'Another object is to provide a fire extinguishing system utilizing an invertible chemical tank having means whereby it will be automatically inverted when a fire occurs so that the apparatus will be rendered operative. V

With the foregoing and other objects in view which will appear as'the' description proceeds, the invention resides in the combination and arrangement of parts and in the details of construction hereinafter described and claimed, it being understood that changes in the precise embodiment of the invention herein disclosed may be made within the scope of what is claimed, without departing from the spirit of the invention.

In the accompanying drawings the pre ferred form of the invention has been shown.

In said drawings,

Figure 1 is a plan view of the complete apparatus, the booth in which it is located being shown in section.

-Figure 2 isa section through the booth showing the apparatus in elevation.

Figure 3 is a rear elevation of the invertible chemical container, the same being shown in its normal position.

Figure 4 is a side elevation thereof, the position of the container when inverted be ing indicated by broken lines.

Figure 5 is a top plan View of the chemical container.

Figure 6 is a sectionthrough the manifold of the distributing system.

' Figure 7 is a section through the manifold on line 7-7, Figure 6, the pipes andspra-ying nozzle being in elevation.

Figure 8 is an elevation of one of the valves and its operating arm.

Referring to the figures by characters of reference 1 designates a booth of the usual or any preferred construction in which are arranged projecting machines 2 and a rewinding machine 3. Secured within the 1926. Serial No. 122,727.

booths at any suitable point is a frame 4; provided with opposed bearings 5 engagedby t-runnions 6 extending in opposite directionsfrom a chemical tank 7', these trunnions being located below the center of the tank, as shown. The bottom of the frame t is formed with a back'wardly extending yoke 8 and arranged above this yoke is an arcuate arm 9 constituting a stop for the tank'7. This arm is forked at itsfree end as shown at 10 forthe reception of an car 11 projecting from the upper portion of the tank. Ahold ing pin 12 is loosely seated within the forked end '10 of arm 9 and within the ear 11 and as long as this pin is in engagement with these forks, the tank 7 isheld in an upright position as shown in Figures 3 and 4. For the purpose of connecting the ear 11 to the tank 7, a strap 13' is extended around the tank, said strap passing over and under the tank and having its ends adjustably connected by a'buckle 14. The ear is extended from this strap. v v

A supporting pin 15 is extended inwardly from the frame 4 at a point where it will not interfere with the rotation of the tank and this pin serves to support the looped portion of a flexible hose 16 one end of which'is connected to the tank as shown at 17 while the other end is'connected to a pipe ,18- leading through a distributing manifold 19. A valve -hose 16. I

Extending from the manifold 19 are delivering pipes leading to the point where the chemical is discharged in the event of fire. In the present instance four of these pipes have been shown at 21, 2 2, 23 and 24. The pipe 21 leads to a point above the rewinding mechanism 3 and is forked as shown at 2 5, the two arms of the fork terminating close to the respective reels 26 of the rewinding mechanism. A valve 27 is provided in the pipe 21and has a weighted arm 28. A cord 29 is connected to this arm and is extended 7 cord. Another cord 31-is attached to the holding pin 12' and is extended through guides 32 as shown particularly in Figure 3. A portion of this cord is formed with a depending loop 33 between two of the guides and this loop is engaged by and supports a weight 34. Only one side of this loopsupports the weight, as shown at the right of the loop 33 in Figure 3, this side being the one anchored to the heat released attaching means. The other side of the loop, which does not support the weight, is extended to the pin 12. One end of the cord 31 is attached to the cord 29. As the weight 34 is fastened to the loop 33 so that it cannot slide on the cord it will be apparent that the held cord 29 will serve to support the weight 34 under normal conditions and pin 12 will therefore remain undisturbed. If, however, cord 29 should be released by fire at the rewinding apparatus 3, the weight 34 would thus be relieved of its support and would move downwardly by gravity, pulling through the cord 31 upon the pin 12 and withdrawing said pin from the ear 11. As

the tank 7 is normally overbalanced, it will immediately swing to an inverted position when thus released. Thus the chemical within the tank will be released and will flow under pressure through the pipe 18 to the manifold 19. When cord 29 was released the valve arm 28 was also released and as this arm constitutes a weight it swings downwardly and opens valve 27. Consequently the chemical entering the manifold will pass outwardly by way of pipe 21 and be delivered onto the rewinding apparatus.

The pipe 22 which extends from the manifold 19 to one of the projectingv machines 2 has a nozzle 35 at its free end positioned where it will spray chemicals upon a burning film in-the machine. A cord 36 is anchored to this machine at a point. where it will be immediately released in the event of fire, this release being effected either by the ignition of the. fastening means or of the cord. Cord 36 is extended directly to the arm 37 of a valve 38 in pipe 22, this arm and valve being the same as the one illustrated in Figure 8 and heretofore described. Cord 36 extends downwardly to the arm and serves to support it normally in position with the valve 38closed. Another cord 39 is attached to the cord 36 and also to the cord. 31, this cord 39 being extended through guides 40 be tween which the cord is extended downwardly and attached to a weight 41 similar to weight 34. Obviously'when the cord 29 is released and the weight 34 operates to with-. draw the pin 12v as already explained, the

. valve 38. will not be actuated because the weight 41 is not thereby released. If, however, cord 36 should be released instead of cord 29, the weight 41 would be free to move downwardly by gravity, thereby pulling on the cord 31 and causing the pin 12 to become disengaged. At the same time the weighted arm 37 would drop and open the valve 38 so that the chemical, from the inverted tank would be'free to flow in the pipe 22 and be discharged at the nozzle 35; I

A similar arrangement of parts has been shown in connection with the pipe 23 which the flow of chemical to this nozzle-can be controlled by a valve 48. The arm 49 of this valve is adapted to be operated by a hand cord 50 and is connected by a cord 51 to the cord 31. Thus whenever the occupant of the booth desires to deliver a spray of chemical into the booth from the nozzle 47, he

merely pulls on the cord 50. This causes the valve 48 to open and causes the cord 51 to pull on cord 31 thereby to shift pin 12 to releasing position. Accordingly the tank will move to inverted position and the chemical fluidwill be'free to fiow through pipe 18 to manifold 19- and thence to the pipe 24.

What is claimed is: V V

1. A fire extinguishing system of the class described including a chemical container,

means for supporting the same to swing about a transverse axis, a shiftable locking pin for holding the container normally in upstanding position, a vmanifold, a flexible pipe connection between the container and the manifold, distributing pipes extending from the manifold, a valve in each distributing pipe adapted to openby gravity, separate means for holding each valve normally closed, each of said means including a flexible line connected at one end to the pin and having an intermediate loop, a weight fixedly attached to and supported by one side of the'loop, and anchoring means attached:

to the weight supporting side of the loop, said anchoring means being releasable by fire in proximity thereto, the release of the anchoring means and consequent release of the weight being adapted to shiftthe pin and release the container for movement to inverted position. c

2. A fire extinguishing apparatus of the class described including a chemical container mounted for swinging about a transverse axis, a support therefor, a slidable locking pin engaging the support and container for holding said container'normally in upstanding position, a manifold having an outlet, flexible pipe connections between the manifold and the container, a valve for controlling the outlet, means. for opening the valve, an anchoring element adapted to be released by fire in proximity thereto, a flexible connection between said element and the valve opening means to restrain the latter from action and to hold the valve closed, 5 a flexible connection between said valve and the pin, said last named connection including a depending loop, and a. pin actuating Weight fixedly secured to the loop and normally supported by that side of the loop extended to the anchoring element, the other side of the loop being normally free of the load of the Weight.

In testimony that I claim the foregoing as my own, I have hereto affixed my signature.

GEORGE A. MEARS.

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