|Publication number||US1782020 A|
|Publication date||Nov 18, 1930|
|Filing date||Jan 30, 1929|
|Priority date||Jan 30, 1929|
|Publication number||US 1782020 A, US 1782020A, US-A-1782020, US1782020 A, US1782020A|
|Inventors||Scott E Allen, Ozro N Wiswell|
|Original Assignee||C O Two Fire Equipment Co|
|Export Citation||BiBTeX, EndNote, RefMan|
|Referenced by (9), Classifications (6)|
|External Links: USPTO, USPTO Assignment, Espacenet|
NOV. 18, |1930@ E, ALLEN ET AL 1,782,020
HEAD FOR PUNCTURING CLOSURE DISKS HTTOQNEM Nov. 18,'930.` s. E. ALLEN ET AL 1,782,020
* HEAD FOR PUNCTURNG CLOSURE DISKSa Filed Jan. 30, 1929 2 Sheets-Sheet 2 4free/Vex Patented Nov. 18, 1930 UNITED f STATES PATENT OFFICE SCOTT E. ALLEN AND OZRO N. WISWELL, OF LOS ANGELES, CALIFORNIA, ASSIGNORS, :BY MESNE ASSIGNMENTS, TO C-O-TWO FIRE EQUIPMENT COMPANY, OF LOS ANGELES, CALIFORNIA, A CORPORATION OF CALIFORNIA HEAD FOR PUNCTURING CLOSURE DISKS Application led January 30, 1929. Serial No. 336,156.
Our invention relates to apparatus for releasing fluid from a container and consists of a combination of elements to be described. Not only is our invention new in its entirety but so far as we are informed certain combinations of the parts less than the entire combination are novel.
In its preferred embodiment lour invention is a device for releasing lire extinguishing fluid such as CO2 gas from its container. So that the utility of the invention will be\understood, we will brieliy refer to that art. When CO2 gas is released in a room where re is present, the CO2 gas will replace the air and extinguish the lire. It is common practice in the art to place the containers of CO2 gas under pressure in rooms or adjacent to the rooms where tires are hable to occur,
the containers being provided with releas-4 ing means whereby the CO2 gas may be quickly released. Each container has an outlet opening closed by a disk of metal, or the like,
'adapted to be punctured when it is desired to release the gas. A
One of the objects of our present invention is to provide a releasing device having a puncturingmember for opening the container, and a cam means for operating the puncturing member.
In case the container is close to the fire which has started, it may be dangerous or impossible to get to the container .in order to Y operate it. It is therefore desirable to provide means for operating the container from a' point remote from the container.
One of the objects of our invention is to vprovide a releasing device which may be op# erated effectively and dependably from a considerable distance from the container.
It is a further object of the invention toprovide a cam-actuated' releasing device which has a pull cord which rotates the cam thereof.
It is a further object of the invention to.
embodying the invention showing it attached to a container.
Fig. 3 is a view partly sectioned, being taken as shown by the line 3-3 on Fig. 2.
Fig. 4 is a plan section taken on the line 4 4 of Fig. 3.
Fig. 5 is a plan section taken on the line 5-5 of Fig. 3.
Fig. 6 is a vertical sectional view taken on the line 6-6of Fig. 2, showing the parts in actuated position.
Fig. 7 is a perspective view of the cam and pulley member of the invention.
Fig. 8 is a side elevation of the'upper portion of the device taken as indicated by the arrow 8 of Fi 2.
Referring 1n detail to the drawings and particularly Fig. 1, the numeral 11 designates a chamber defined by walls 12. Extending into the chamber 11A is a conveying means in the form of a pipe 13 by which fire extinguishing iuid such as CO2 gas is introduced into the chamber. The pipe 13 vis connected to a releasing device-14 which is attached to the top of a fluid supply means. The fluid supply means'is shown in the form of a container 15. As illustrated in Figs. 2 to 8, the
the container 15. This projection 21 is provided on the outer end of projection 18 and supports a closure member in the form of a disk 22. The disk 22 closes the outlet opening 23 of the container 15. An annular. cap
is threaded onto the projection 21 to hold the disk 22 in place.
The body 17 supports a puncturing member 24, which has a stem 25, which stem 25 extends upwardly from the body 17 through an opening 26. The lower end of the puncturing member 24, which is located within the chamber 20, has an enlarged part 28, the upper end of which is provided with a valve face 29 adapted to engage a valve seat 30 provided by the body 17 around the opening 26. This arrangement is provided for forming a seal to prevent iuid from escaping around the stem 25. The lower end portion of the puncturing member 24 extends through the cap which holds the disk and is adapted to extend into the opening 23 of the projection 21. The lower end of the member 24 is provided with a sharp annular edge 32, whereby the closure 22 may be penetrated. The puncturing member is provided with an openin or cavity 33 through which the released uid may pass into the chamber 20.
The released fluid may pass from the chamber 20 through the pipe 13 which extends from the chamber 20 to the chamber 11. The upper end of the puncturing member 24 is provided with a head 35 and compressed between the head 35 and an upper ace of the body 17 is a compression spring 36 for resiliently retaining the puncturing member 24 in the normal or up position, shown in Fi s.2and3. upported on the body 17 is an extension or secondary body 40. This secondary body has a lower opening 41 into which a pro-- o jection 42 of the body 17 extends. Attachment between these two parts may be accomplished by suitable means. We have shown three adjustment screws 43 by means of which centralization of the two 4parts 17 and 40 may be accomplished. The secondary body 40 is in the nature of a carrier for a cam and pulley device and provided with a' cavity 44 across which a horizontal shaft 45 extends. Carried by the horizontal shaft 45 within the cavity 44 is a cam and pulley member 46 which is shown in perspective in Fig. 7. This member 46 has a central opening 47 through which the shaft 45 extends.- One portion of the member 46 is in the form of an eccentric cam 48 and the other part of the member 46 is in the form of a concentric pulley 49. As shown in Figs. 2, 3, and 6, the cam 48 is adapted to engage the head 35 of the puncturing member 24 and to move it from the position shown in Figs. 2 and 3 into the position shown in Fig. 6, when the member 46 is rotated. Extending around the pulley 49 is a flexible pull cord 50, one end of which extends into an opening 51 in the pulley and is secured therein by means of a screw 52.
The pull cord makes almost an entire revolution around the pulley 49 and extends 85 tratedin Fig. 1, protects the pull cord 50,
The end of the pull cord beyond the outer end of the pipe 54 may be provided with a ring 55 by which it may be manually engaged or it may be provided with automatic means for exerting a pull on it.
Extending from the vcam 48 is a cam pin, 56, which may engage a stop pin 57 threadedly mounted in the body 40. The engagement of the cam pin with the stop pin 57 determines the actuated position of the member 46 such as is illustrated in Fig. 6. One side of the secondary body is detachable, being in the form of a cover 58 which is secured in place by a nut 60 screwed onto the end of the shaft 45. The cover 58 is provided with an opening 61 through which an arrow 62 formed on the member 46 may be viewed. Whenthe arrow 62 is aligned with the opening 61, the cam is in the position shown in Figs. 2 and 3 of the. drawings; that is, the cam is in normal position.
The operation of the invention is as fol lows:
In order to release the fluid from the container 15 it is necessary torotate the member 46 from the position shown in Figs. 2 and 3 into the position shown in Fig. 6. This is accomplished by pulling on the pull cord 50. As previously pointed out the pull'cord 50 may be manually pulled by engaging the ring 55 provided therefor, or in the event that an automatic operation is desired the pull cord may be operated by some sort of automatic mechanism.
When the cam is rotated, which rotation Will be in the direction of the arrow 64 o f Fig. 3, the cam 48 will move the puncturing means 24 against the action of the spring 36,
from the position shown in Figs. 2 and 3 into the position shown in Fig. 6. The lower end of thepuncturing member 24 pene- 1 trates the closure disk 22 and the fluid contained in the container 15 may flow throu h the opening 23, the cavity 33, and into tie chamber 20. The fluid passes from the chamber 20 through the pipe 13 and into the chamber 11.
The principal feature of the invention is the cam means for operating the puncturing member 24.` The value of the cam means resides in the fact that it is positive in operation and that it will quickly depress the puncturing member 24 in order to penetrate the closure disk 22 and to expeditiouslyI release the iuid. The form ofi-'the invention which we have shown is quite simple. We realize that various arrangements of the parts may be provided, for example, the axis of the cam member may be turned ninety degrees and the puncturing member 24 may be operated through a bell-crank arrangement. The various modifications which may be made and which embody the principle of a puncturing member operated by a cam are anticipated in the following claims which dene the scope of our invention.
We claim as our invention:
1. In a device of the class described, for use with a container having a closure for closing an opening of said container, the combination of a body; a puncturing member supported by said body, said punctring member being operableto open said closure; a cam Within the bod operable to actuate said puncturng member; a pulley within the body for operating said cam; and a pullcord Wound on said pulley and extending from the body for rotating said pulley.
2. In a device oi the class described, for, use with a container having a closure for closing an opening of saidcontainer, the combination of: a body; a puncturing member supported by said body, said puncturing member'being operable to open said closure; a cam operable to actuate said puncturing member, a carrier for the cam detachably connected with the body; means for rotatably supporting said cam in the carrier; a pulley oroperating said cam; and a pullcord Wound on said pulley for rotating said pulley.
3. In a device of the class described, for use With a container having a closure for closing an opening of said container, the combination of: a sectional supporting means; an axially movable puncturing member carried by one section of said supporting means, said puncturing member being movable axially to puncture said closure a cam rotatably supportedby the other section of said supporting means above said puncturing member and being adapted to axially able to actuate the operating member, and means for actuating the cam including, a pulley within the body and a liexible member carried on the pulley and projecting from the body.
In testimony whereof, We have hereunto set our hands at Los Angeles, California, this 24th day of January, 1929.
SCOTT E. ALLEN. OZRO N. WISWELL.
move said puncturing member when said cam rotates; and means for rotating said Cam.
4. A device for use on a container having. an outlet closed by a closure including, a body, a member' carried by the body operable to openthe closure, and a unit detachably connected with the body and, said member head for the container having a movableoperating member, a body, vmeans for detachably connecting the body with the head,
a cam carried by the body operable to actuate the operating member, and means for actuating the cam.
7 In combination a container, acontrol head for the container having a movable operating member, a body to be applied tothe head, a cam carried within the body oper'-
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|U.S. Classification||222/5, 137/68.3, 74/500.5|