US357366A - Combined fire and burglar alarm - Google Patents

Description

(No Model.) "2 Sheets-Sheet 1.

I. s. BUNKER. COMBINED FIRE AND BURGLAR ALARM.

Nb. 357,366. Patented Feb. 8, 1887,

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' COMBINED FIRE AND BU RGLAR ALARM. I N0 .'357,366. Patented Feb. 8, 1887.

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IRA S. BUNKER, OF NORTH SPRINGFIELD, MISSOURI.

COMBINED FIRE AND BURGLAR ALARM.

SPECIFICATION forming part of Letters Patent No. 35 dated e ary 1887- Applioation tiled January 14,1886. Serial No. 188,617. (No model.) 7

To all whom it may concern:

- Be it known that l, IRA S. BUNKER, a citizen of the United States, residing at North Springfield, in the county of Greene and State of Missouri, have invented certain new and useful Improvements in Combined Fire and Burglar Alarms; and I dohereby declare the following to be afull, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

My invention relates to improvements in fire and burglar alarms, the object of whichis to provide a cheap, simple, reliable, and con venient device for giving an alarm in case. of fire or burglary in any part of ahouse or other place desired to be protected. These objects I attain by. means of the device illustrated in the accompanying drawings,forming a part of this specification, in which- Figure 1 is a plan view of the box with the cover raised to show the interior of the same. Fig. 2 is a detail of the alarm machinery. Fig. 3 is a detail, enlarged, of the attachment for a door.

Similar letters of reference indicate corresponding parts in the several figures.

A represents abox or case, of any desired size and shape,which may be ornamented as desired. Said box has a suitable cover, B, hinged to one side,for convenience in opening the same. It also has apartition, G,which has one or more holes, 0, and in one end, D, of the said box are also made one or more holes, (1 corresponding in number with the holes c,for receiving rods E. Said rods are of any desired size and length, and are provided with suitable springs, preferably spiral springs, F, as

shown, which rest against the inside of the end Dyand a pin or shoulder, e, on the lower or inner end of the rods E. The inner ends of rods E are notched at e crosswise, so as to catch the cord G, and not slip off from it when they are permitted to go in to press upon it for setting oft the alarm. To the otherends of rods E are attached cords H, which extend to any or all parts of a building desired. Preferably a separate cord H is used for each room, .passing around fines in garrets, over doors, or where fire is most likely to originate or burglars to enter. To the outer or farther endof said cord is secured a suitable spring or weight to keep the spring F on the rods E drawn up against the end piece, D, and for holding rods E up so as not to engage cord G, unless in case of fire or the opening ofa door which is desired to be protected, when one of the cords H will be severed by burning off, or be cut oft by the device,hereinafter explained, for setting oif the alarm.

Thedevice for giving the alarm forburglary consists of a button, I, secured to a door or window, having a hook, t, on one end to engage cord H, so that in case the door or window is opened it will pull on the cord, which is placed through eyelets h, which are placed near the button, and are provided with a sharp or cutting edge, If, so that when the button is made to pull on the cord the cord will be severed and permit the alarm to ring. I

The direction of the fire or disturbance may be known by examining the box A, which is placed in an office, or near the head of a bed, as desired, and the several cords or rods are numbered or designated, so as to tell from where the cord is cut or the room or place to which each cord goes.

The alarm ,is constructed as any ordinary alarm. The one shown has a winding-shaft, J, on which is placed a coil-spring, K, with a cog-wheel, L, having a pawl, Z, and spring Z to keep it in place in the ratchet-wheel M, and a shaft, 0, provided with a pinion, 0 to engage the cog-wheel L, and a toothed wheel, 0 in which operates the escapeinent P. 'To the escapement-shaft 1? is secured the hammer-rod Q andarm R for preventing the alarm from sounding when it is heldback.

S is any ordinary alarm-bell, secured in a suitable position onto the cover for being struck by the hammer.

T is a lever, .of any desired shape, and size pivoted in the box near the alarming machinery, one end having an arm, 15, to rest against arnrR,when the lever is in the position shown,to preventthe sounding. Forthis purpose a suitable spring, W preferably a spiral spring, is secured to the inside of the box and to the other end of the lever T to hold it in place.

G is a cord, also secured to the same end of the lever T. It is placed around a pulley or suitable support, 5 and is attached firmly to the side of the box Thus when one of the cords H is cut or burned ofi the rod E, to which it is connected, is permitted to pass down, as shown at E by means of the springs F,which draw upon thelever T, as indicated by the dotted lines,which releases the alarm and rings the bell. Thus I have a device thatis certain in its action, as a slight pressure on the cord G will permit the alarm to ring.

In passing the cords H through ceilings and partitions small thimbles or tubes Z may be used, through which to pass the cord to protect it from mice, insects, &c., and for this purposeit may be tarred or otherwise prepared for preserving it,when desired, andin making connections with other buildings wire may be usedin the place of the cords. For making connections with other rooms, windows, outbuildings, orany desired point, connection may be made with the main cord by means of a bloek,X. Said block has a hole through which the cord H is passed, or a notch in which it may be placed, as shown.

E is a rod extending through a hole in the block in a cross direction from the line of the main cord, and is provided with a knife or piece, X, having a sharp edge,which is placed in a slot, X, so that it is free to move back and forth.

F is a spring placed on the said rod and resting against the shoulder in the block X, and a pin on theback end of the rod for throwing the rod back.

H is a cord secured to the end of the rod E, and having a weight on its farther end to keep the knife drawn back. Thus it will be seen that should the cord H be severed, from any cause, the spring E" will quickly draw down the rod E and cause the knife X to sever the cord H, thereby sounding an alarm.

Having thus described my invention, what I claim as new, and desire to secure by Letters Patent, is

1. The combination,with a suitable case, of an audible alarm mechanism, as described, a spring actuated lever connected with said mechanism by a rod, 15, a cord, G, arranged beneath one or more spring-actuated rods, E, and connected to the lever T, and one or more cords, H, leading oft to a door or other object, and provided with a tension-weight, substantiall y as described.

2. The combination, with an audible alarm mechanism, the spring-actuated lever T, the rod 15, and rope G, having engagement with arm It, connected to lever T, of one or more spring-actuated rods, E, one or more ropes, H, passed over pulleys and provided with a tension-weight for connecting these rods with a door-fine or other object, aslotted guide-back, a cutter, X, applied to a vertically-movable spring-actuated rod, and a cord passed over pulleys and provided with a weight, all substantially as described.

3. The combination, with an audible alarm mechanism constructed as described, and one or more spring-aetuated rods,,E, held up by a cord, H, and weight, of a door loosely connected by an eye to said cord, and one ormore devices adapted to out said cord should the door be opened, substantially as described.

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

IRA S. BUNKER.

Witnesses:

S. A. HASELTINE, J. H. GRANT.

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