US920370A

US920370A - Photo-smoke arrester.

Info

Publication number: US920370A
Application number: US39561707A
Authority: US
Inventors: William Isaiah Mccausland
Original assignee: Individual
Current assignee: Individual
Priority date: 1907-10-02
Filing date: 1907-10-02
Publication date: 1909-05-04
Anticipated expiration: 1926-05-04

Description

W. I. MOGAUSLAND.

PHOTO SMOKE ARRESTER. APPLICATION FILED 00T. 2,;1907.

Patnted May 4, 1909.

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W. I. MOCAUSLAND.

PHOTO SMOKE ARRESTER.

APPLGATION FILED 00T.2,1907. 920,370, Patented May 4., 1909.

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WILLIAM ISAIAH MCCAUSLAND, OF FLAT RIVER, MISSOURI.

PHOTO-SMOKE ARRESTER.

kNo. 920,370.

Application filed October 2, 1907.

Specification of Letters Patent.

Patented May 4, 1909.

Serial No. 395,617.

To all whom 'it may concern:

, Be it known that I, VILLIAM IsAiAH Mo- CAUSLAND, citizen of the United States, residing at Flat River, in the county of St. Francois and State oi Missouri, have invented. certain new and useful Improvements in Photo-Smoke Arresters, oi which the Jfollowing is a specification.

The present invention is in the nature of a novel device for arresting and confining smoke and gases given off by flash light powders such as are employed for photographic and theatrical purposes.

The object of the invention is to design a smoke arrester of this character which is of simple and inexpensive construction and operates in anr effective manner to conline the smoke and prevent it from escaping into the room where it is extremely objectionable owing to the fact that it has a corrosive action upon certain fixtures and iills the air with poisonous gases.

To this end the invention resides principally in the provision of a collapsible hood Aand a novel means for mounting the hood over the burning powder, the said hood operating when distended to suck up the -smoke and fumes produced by the combustion `of vthe powder.

For afull description oi the invention and the vmerits thereoll and also to acquire a knowledge of the details oi construction and the means for effecting the result, reference is -to be had'to theiollowing description and accompanying drawings, in which:

Figure 1 is a vertical sectional view showing the device mounted upon the standard and the hood as pressed downwardly within the box. Fig. is'an end view of the same,

the lid being shown in an elevated position.

Fig. 3' is va perspective view of the device when folded, Fig. 4 is a vertical sectional view through the device, the hood being shown as moved upwardly into an operative position and-as partially distended. Fig. 5 is an end view of the device when in the position shown in Fig. 4, the lid being closed. Fig. 6 is a vertical sectional view with the hood distended. Fig. 7 is a horizontal4 sectional view on the line 7-7 oi' Fig. 6.

Corresponding and like parts are referred to in the following description and indicated in all the views of the drawings by the same reference characters.

lReferring to the drawings the numeral 1 designates the box which may be formed of any light and iire-prooi material such as aluminum, one of the sides of the box being open and provided with an upwardly swinging cover 2. Passing centrally through the box l is an upright standard or rod 3 which may be supported by any suitable means such as the usual tripods. The upper portion oi the box 1 is designed to be closed when the apparatus is collapsed as shown in Fig. 3 by means oi a cover 4 and a frame 5 is secured to the mouth of the box 1 within the upper portion thereof, the inner iaces oi' the frame being beveled inwardly yas indicated at 6. A collapsible hood is mounted upon the standard 3 immediately over the box 1, the said hood comprising an upper frame 7 which is shown as secured to the cover 4 oi the box, a lower frame 8, and bellows 9 connecting the two frames.

When the apparatus is lolded 'lor transportation the lower frame S lits within the box 1 and the cover 4 closes the top of the said box. lNhen the device is set up ior use however the lower frame 8 is moved into engagement with the frame 5 secured to the box 1 and is held in engagement therewith by means oi the toggle levers 10 secured respectively to the frame S and the bottom oi' the box 1. It will be observed that in the present instance the outer laces of the lower frame S are beveled outwardly corresponding to the beveled faces 6 oi' the frame 5 and engagevwith the same to produce a practically air tight joint. The bellows 9 maybe of any conventional construction and in thepresent instance is shownv as formed of `lire-prooi cloth having the spaced annular rings 11 secured thereto. Surrounding thestandard 3 and interposed between the upper frame 7 and lower trame 8 of the collapsible hood is a coil spring 12 which normally operates to i'o'rce the said frames apart and hold the bellows in a distonded position. For the purpose of holding the upper frame 7down against the action oi' the spring 12 in which position the hood is collapsed, a catch 13 is fastened to the top 4t and engages a pivoted catch 13 supported Jfrom the pan 18.

Extending downwardly from the catch 13 is an operating cord 14 which passes through a guide member 15 and then extends outwardly away from the standard where it engages a lever 16, after which it hangs downwardly and terminates in a finger-piece 17.

`the usual character.

. mer 19 is provided, the said hammer being tripped through the medium of the lever 16. This hammer 19 may be of any approved construction, and as shown on the drawings, comprises a plate which extends over the nose of the lever 16, and a stern which is pendent from the plate and is normally pulled downwardly into contact with the anvil by means of a coil spring surrounding the same, the cap or initible pellet being designed to be placed between the stem and the anvil. It will thus be apparent that when a downward pull is exerted upon the fingerpiece 17 the lever 16 is moved to raise the hammer 19 against the action of the spring, after which it is released and caused to strike against the cap to ignite the same. A further movement of the operating cord serves to release the catch 13 whereupon the spring 12 forces the frame 7 upwardly and the bellows 9 is distended. The upwardly swinging cover or lid 2 is normally held in a raised position by means of a cord 20 which engages the standard 3, preferably at the upper extremity of the same.

Projecting upwardly from the top of the collapsible hood is an arm 21 which in the present instance is shown as terminating in a ring 22 slidable upon the standard. l/Vhen the collapsible hood is distended by releasing the catch 13 as previously described the arm 21 moves upwardly along the standard and the ring 22 at the extremity thereof disengages -the cord 20, whereupon the lid 2 falls downward by the action of gravity and closes the open side of the box. served that the said swinging lid is provided with the anges 23 and these flanges are preferably lined with felt or analogous material so as to produce a smoke tight closure. It will thus be apparent that by a single pull upon the finger-piece 17 at the extremity of the operating cord the flash light powder is ignited, the collapsible hood distended so as to suck up the smokes and gases produced by the combustion of the powder, and the lid 2 caused to swing downward and close the open side of the box, thereby effectively confining the smoke until the apparatus shall be moved into the open air or other position where it is desired to release the smoke. It might be mentioned that by suitably varying the length of the arm 21 the time allowed after the ignition of the fiash light powder before the swinging lid 2 is closed can be conveniently regulated.

When the device is not in use the toggle levers 10 are moved outwardly and the lower frame 8 of the hood caused to enter the box 1.

`The cover 4 can then be applied to the top n will be Ob-l of the box and secured in position by any suitable means.

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

1. A flash light smoke arrester comprising a box formed with an open side, a movable lid for closing the open side, a collapsible nood arranged in cooperative relation to the box, means for distending the hood, and means for automatically closing the lid when the said hood is distended.

2. A flash light smoke arrester comprising a box formed with an open side, a movable lid for closing the open side, a collapsible hood arranged in cooperative relation to the box, a spring for distending the hood, means for holding the hood collapsed against the action of the spring, means for releasing the hood, and means for automatically closing the lid when the hood is distended.

3. A flash light smoke arrester comprising a standard, a box mounted upon the'standard and formed with an open side, a swinging lid for closing the open side, a cord loosely engaging the standard for holding the lid in an open position, and means for automatically releasing the cord from engagement with the standard for closing the lid.

Ll. A flash light smoke arrester comprising a box formed with an opening, a frame applied to the box and surrounding the opening and having the inner edges thereof beveled, a collapsible hood provided with a frame having beveled edges engaging the correspondingly beveled edges of the before Vmentioned frame applied to the box,` and means for distending the hood.

5. In a flash light smoke arrester, the combination of an upright standard, a box supported upon the standard, upper and lower frames slidable upon the standard above-the box, the lower frame engaging the said box, a bellows connecting the frames, and means for moving the upper frame to distend the bellows.

6. In a flash light smoke arrester, the combination of an upright standard, a box mounted upon the standard and formed with an open side and an open top, a swinging lid for closing the open side, a cord connected to the lid and detachably engaging the standard to hold the lid in an open position, a collapsible hood mounted upon the standard over the box and engaging the open top thereof, means for distending the hood,

and means carried by the hood to disengage the before mentioned cord from the standard and close the lid.

7. In a :flashlight smoke arrester, the combination of a standard, a box mounted upon the standard and having an open top, a frame engaging the top of the box, a second frame slidable upon the standard, bellows connecting the frames, a spring for forcing the frames apart, catches cooperating with each other to hold the frames together, and means for releasing the catches to distend the bellows.

8. A flash light smoke arrester comprising a box, a frame applied to the box, a collapsible hood formed with a frame designed to engage the before mentioned frame, means for distending the hood, and toggle levers for holding the two frames normally in engagement with each other.

9. A flash light smoke arrester comprising a box, a collapsible hood formed with a frame adapted to detachably engage the box,

'toggle levers for holding the frame in engagement with the box, and means for distending the hood.

l0. A flash light smoke arrester comprising a box, a collapsible hood arranged in cooperative relation to the box, a spring for distending the hood, catches for holding the hood in a collapsed condition, and means for automatically releasing the catches.

In testimony whereoiI I affix my signature in presence of two witnesses.

WILLIAM IsAIAH MCGAUSLAND. [n s.] lVitnesses:

H. P. LONG, BRICE WHrrLoox.