US1139177A - Fireman's helmet. - Google Patents

Description

J. M. GANZER. FIREMANS HELMET. APPLICATION FILED MAY]. 1914.

Patented May 11, 1915.

v with caoeo 9 y Ill! -UNITED STATES PATENT OFFICE.

JOHN M. GANZER, 0F POUGHKEEPSIE, NEW YORK.

To all whom it may concern Be it known that I, JOHN M. GANzER, a citizen of the United States, residing at Poughkeepsie, in the county of Dutchess and State of New York, have invented certain new and useful Improvements in Firemens Helmets, of which the following is a specification. This invention relates to firemens helmets or masks, and one of the principal objects of the invention is to provide a mask for covering the face of the firemen, and provided with means whereby air will be furnished for breathing purposes through the mask, and in which a telephone transmitter will be properly positioned relatively to the mouth of the wearer, and a telephone receiver placed over the ears of the wearer,

and means being provided for furnishing suflicient air so that the wearer of the mask may enter a building without being affected by the smoke.

Another object of this invention is to provide a firemans mask having suitable air valves in a connection pipe leading to the outer part of the building and the mask having suitable telephone connections so that messages may be conveyed from the outer part of the building to the firemen or from the firemen to parties on the outside of the building.

These and other objects may be attained bvmeahs of the construction illustrated in the accompanying drawings, in which Figure 1 is a side elevation and partial section of a firemans mask made in accordance with this invention, Fig. 2 is a detail sectional view, showing a valve for use at the nose portion of the mask, and Fig. 3

is a sectional view of the sight openings .or goggle portions of the mask.

Referring to the drawings, the numeral 1 designates the body portion of thewnask, and 2 the band which extends around the back of the head and holds the mask properly in place on the face of the wearer. This body portion and band hold the mask properly in place. The sight openings 3 are formed in the mask, said sight openlngs being provided with glass windows se-' cured in place by metal frames 4. To pro vide means whereby the wearer of the mask may exhale, near the nostrils of the wearer, a valve is provided, which comprises a plate or seat 5 on the outer side of the mask and an apertured plate 6 on the inner side of FIREMAN S HELMET.

Patented May 11, 1915.

Application filed May 7, 1914. Serial No. 836,998.

the mask, said plates being each provided with an aperture and a valve 7 being seated normally against the outer plate 5 by means of a small spiral spring 8 which surrounds the valve stem 9 and bears at one end body portion 1 of the mask in any suitablemanner and the valve 7 is carried by the member 11. Connected to the mouth portion of the mask is a tube-12 which is gradually reduced in size toward its lower end 13. Mounted within the tube 12 is a tele phone transmitter 14;, and the connecting wires 15 from said transmitter extend out through the tube and branch wires 16 lead to the receiver 17 connected to the band 2 immediately over the ear of the wearer. Connected to the reduced end 13 of the tube 12 is an inhalation valve comprising a nipple 18 secured in the end 13 of the tube 12 and carrying a right angular branch 19, provided with a valve seat 20, and this valve'seat is provided with an opening for *a valve stem21 having a valve head 22 thereon. The opposite end of the valve stem extends through a disk 23 mounted in the tube 19, and a light spiral s ring 24 is coiled about the valve stem and one end against 'a diaphragm 25 connected to a bellows member 26. A pass valve 27 is mounted in an inlet tube 19, and the pass valve 27 consists of a valve stem 29 which is slidably supported by a plate 30 and it has valve disks 28 and 31 secured to its opposite end. The pass valve 27 is provided to permit of the passage of air into the mouth piece or tube 12 and to prevent the passage of air out ofthe latter. A tube 35 extends downwardly from and has communication with the angled tube 19. The tube 35 is provided for attaching a second helmet to the tube 19 if it is so desired.

The action of the valve 22 may be described as follows: When the wearer of the mask inhales, the air is drawn through the tube 12, the intake end of which is located outside the building, and the air passing through the tube 12 and up to the mouth portion is inhaled by the wearer of the mask. The bellows portion 26 is collapsed during the inhalation to open the valve 22.

ears at- The exhalation passes out through the nose valve 7 From the foregoing it Will be obvious that the wearer of the mask can enter a building filled with smoke and telephone order outside of the building and receive orders therefrom. Fresh air is supplied to the wearer of the mask by pressure suitabl supplied.

arious changes may be made in the details of construction Without departing from the spirit and scope of the invention as defined in the claims.

What is claimed is 1. A firemans mask comprising a body portion, a head band connected thereto, sight openings in the body portion of the mask, a nose piece, a tube extending from the mouth portion of the mask, valves in the nose piece and in said tube permitting inhalation and exhalation from the outer air, a. telephone transmitter in said tube, and a receiver on the head band.

2. A firemans mask comprising a body portion having ahead band, a telephone receiver connected to the head band, an eX- halation valve connected to the mask, an inhalation tube provided with a valve, and a telephone transmitter in the inhalation tube.

In testimony whereof I affix my signature in presence of tWo witnesses.

JOHN M. GANZER.

Witnesses:

JosEr-H F. HORAN, IRENE O. KEARNEY.

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