US868927A - Fire-shield. - Google Patents

Description

No. 868.927. PATENTED 00122, 1907.

-J. W, HULL, SB.

PIRE SHIELD. AP PL IQTION IILBD AUG. 3, 1906.

2 SHEETS-SHEET 1.

Kiwi so" a /A/ :ff/v 7 0 E y Jahn W11@ zz, 52s' MW .I y

No. 868,927. PATENTED UGT. 22, 1907. J. W. HULL, Sn.

FIRE SHIELD.

APPLIUATION FILED 4116.3, 1906.

1H: NoRms Fermes cc., wAsHlNaraN. u. c

nNTTnD sTATns PATENT OFFICE.

.IOIIN W. HULL, SR., OF ZION CITY, ILLINOIS, ASSIGNOR TO ZION CITY MANUFACTURING CO., OF ZION CITY, ILLINOIS.

FIRE-SHIE LD Specification of Letters Patent.

Patented Oct. 22, 1907.

Application filed August 3, 1906. Serial No. 329,130.

To all whom it may concern:

Be it known that I, JOHN W. HULL, Sr., a citizen of the United States, residing at Zion City, in the county of Lake and State of Illinois, have invented certain new and useful Improvements in Fire -Shields, of

. which the following is a specification.

This invention relates to a portable fire shield', and the object of the invention is to provide such a shield which can be readily transported to the scene of action, can be raised into a perpendicular wall so as to prevent the [ire from spreading and to protect the man engaged in lighting the lire against excessive heat.

I accomplish the objects of my invention by the mechanism illustrated in the accompanying drawings, in which Figure l is a fragmentary detail in front elevation of a fire truck with one of my lire shields in partially elevated position. Fig. 2, is a perspective view of one corner of a fire truck showing the arrangement of the mechanism for elevating fand securing the masts that support the shield. Fig. 3, is a. plan view of the construction shown in Fig. 2, on the line 3-3, except that the movable parts in this view are in their closed position. Fig. 4, is a fragmentary detail in elevation of a portion of the fire shield, showing the manner in which the several sections that form the shield are connected together. Fig. 5, is an end elevation of the construction shown in Fig. 4.

In the drawings, l is the floor of the fire truck, and 2 the running gear. The floor l is preferably a smooth surface without side walls, and the front and rear corners of one side thereof, is provided with the posts 5, which stand in a vertical direction and are rigidly held in position by the brace rods 6, or other suitable means. As the mechanism at each corner is similarly constructed, the description of one is deemed sufficient for the other. l

The post 6 provides the means for holding the mast l0. The mast l carries the mechanism for elevating theiire shield and is preferably formed of a piece of pipe. The mast is provided with a right angle bent portion ll, which extends some distance away from the mast, and is then bent upward parallel with the mast l0 to form an arm l2 to which a cable or other means is secured for raising or lowering said mast. The mast l0 is situated so contiguously to the post 5 that, when the mast is raised into its elevated position, the two will stand parallel and in contact with each other. The

Aright angle portion ll of the mast extends across the face of the ioor l, and is held in position by means of the bearings I6 which are secured to said floor. v

The truck is provided at each end with a standard which forms a support for the sheave 2l, and carries a cable 22 whichv extends from an eye in the end of the arm 12 to a windlass shaft 25, which is mounted in bearings 26 secured to the truck frame. The truck is provided at each end with one of said shafts, and the latter extend transversely of the former. The shaft is provided at each end with a hand crank 27, so that the act of elevating the lire shield is facilitated. This shaft is also provided with a ratchet wheel 28, and by means of a pawl 29 the unwinding of said shaft is prevented.

The mast l0, while being elevated, is guided into position against the post 6 by means of a yoke 30 which is secured to said post, and by means of a cross pin 3l the mast is securely held in its upright position. The mast l0 may bev lowered to lie flat upon the floor l by removing the pin 3l and unwinding the shaft 25. The mast l0 is provided at its upper end with a sprocket wheel which engages and carries a sprocket chain 36.

The sprocket chain 36 extends downward through the floor I and engages a sprocket wheel 38, mounted on the longitudinal shaft 39. This shaft is mounted in suitable bearings 40 which are secured to the floor l and is provided at each end with a hand lever by which same is rotated. A ratchet wheel 42 is mounted on the shaft 39, and by means of a pawl 44 a reverse movement of said shaft is prevented.

It will be understood that the longitudinal shaft 39 carries a sprocket wheel at each end so as to impart a corresponding movement 'to both of the wheels, thus insuring a uniform hoisting of the fire shield. The rotation of this shaft is. secured by means of hand levers 4,5, one of which is attached to each end.

'Ihe fire shield comprises a series of asbestos, or other noninflammable material, members or boards 50, which are pivoted together so that they may be nested when not in use, and will occupy a position adjacent to the masts l0, as shown in Fig. l. The members that compose the re shield are provided with the transversely extended strips or cleats 5l, which are given a partial twist at their ends to form the ears 52. These ears are provided with apertures to receive the rivets 53. `The upper member of the shield is provided at one of its edges with suitable catch devices 55. One of these catches is located near each end of the member 55, and engages a fastener 56 mounted on each of the chains'36. After the shield has been attached to the chains, it may be easily and uniformly elevated or lowered, by revolving the longitudinal shaft 39 in the desired direction.

Having thus fully described my said invention, what I desirevto secure by Letters Patent, is-

l: A nre shield comprising a platform, a plurality of masts movably mounted on said platform and having rightangle bent base portions which terminate in arms, a

mast elevating revoluble means extending transversely of the platform, a sheave, a cable extending from the mast elevating means over said sheave to the arms, re shields, shield elevating means rotatably mounted on the platform and extending parallel with the fire shields, sheaves se cured to the tops of the masts, and means extending from the shield elevating means to the sheaves on the masts tops.

2. A re shield comprising a platform, a plurality of masts movably mounted on said platform 'and having rightangle bent base portions which terminate in arms, mast elevating means extending transversely of the platform, a sheave, a cable extending from the mast elevating, means over said sheave to the arms, stop devices to limit the upward movement of the masts and means to hold the masts in an elevated position.

3. A re shield comprising a platform, a plurality of masts movably mounted on said platform and having;l rightangle bent base portions which terminate in arms, mast elevating means extendingtransversely of the platform, a sheave, a cable extending from the mast elevating means over said sheave to the arms, stop devices to limit the up Ward movement of the masts, means to hold the masts in an elevated position, nre shields, shield elevating means revolubly mounted on said platform and adapted to extend parallel with the fire shields, sheaves secured to the upper ends of the masts, and means extending from the shield elevating means to said sheaves.

4. A re shield comprising a platform, a plurality of masts movably mounted on said platform having right angle bends and arms formed on the bent portions opposite the masts, revoluble means extended transversely of the masts, a sheave, a cable extending from the revoluble means over said sheave to said arms, and a stop device to hold the revoluble means in a, given position.

In Witness whereof, I have hereunto set my hand and seal at Indianapolis, Indiana, this 28th day of July, A. D. one thousand nine hundred and six.

` JOHN W. HULL, SR. [L. s.] Witnesses F. W. WOERNER, L. B. WOERNER.

Images