US794278A

US794278A - Fire apparatus.

Info

Publication number: US794278A
Application number: US19635904A
Authority: US
Inventors: Burdett B Briggs
Original assignee: Individual
Current assignee: Individual
Priority date: 1904-03-03
Filing date: 1904-03-03
Publication date: 1905-07-11
Anticipated expiration: 1922-07-11

Description

PATENTED JULY 11,1905.

B. B. BRIGGS. FIRE APPARATUS APPLIOMION PiLED MAR. 3, 1904.

2 SHEETS-SHEET l.

No. 794,278. PATENTEDJULY 11, 1905.

- B. B. BRIGGS.

FIRE APPARATUS.

APPLICATION FILED MAR. 3, 1904.

2 SHEETS-SHEET 2.

Patented July 11, 1905.

PATENT UFFTCE.

BURDETT B. BRIGGS, OF ORESTON, IOWA.

FIRE APPARATUS- SPECIFICATION forming part of Letters Patent N0. 794,278, dated July 11, 1905.

Application filed MarchB, 1904. Serial No. 196,359.

To aZZ whom it may concern.-

Be it known that I, BURDETT B. BRIGGS, a citizen of the United States, residing at Creston, in the county of Union and State of Iowa, have invented certain new and useful Improvements in Fire Apparatus; and my preferred manner of carrying out the invention is set forth in the following full, clear, and exact description,terminating with claims particularly specifying the invention.

My invention relates to improvements in fire-trucks, more especially to that class in which water-towers are carried on the truck, and to improvements made by myself on an application filed November 27, 1903, Serial No. 182,890; and the objects of the same are, first, to provide an improved construction of the truck-frame, so as to reduce the height of the load carried without reducing the height of the front wheels, as is customary in apparatus of this class; second, to provide improvements whereby a ladder or tower can be mounted on the forward end of the truckframe and hose carried in a box in the rear of the truck; third, to provide an improvement for directing a stream of water from the nozzle; fourth, to provide means whereby the extensible section can be extended or distended without the necessity of an operator to attend to separate means which regulates the nozzle; fifth, to provide an improved means for raising the tower from a horizontal to a vertical position, in which lifting-levers and hoistingcables are used.

To this end the invention consists in the details of construction hereinafter more fully described and claimed and as shown in the accompanying drawings, which form part of this specification, wherein Figure 1 is a side elevation of the entire device. Fig. 2 is a rear end view of the truckframe removed from the running-gear. Fig. 3 is a side elevation of the truck-frame in section removed from the running-gear and the tower raised and extended, certain parts being cut away. Fig. 4 is a front view of the tower and raising mechanism removed from the main frame, the tower being raised and the upper section extended.

Referring to the drawings, similar characters of reference refer to similar parts throughout the several views.

A and B designates the front and rear part of the running-gear of the truck, such as usually forms part of the fire equipment of large cities. The main frame of the truck has each one of its two sides constructed of two parallel bars 1 and 2, the bar 2 being remotely below the bar 1 and extends from the rear end of the truck forward only to a point which is rearward of the front running-gear, as seen in Fig. 1. A diagonal bar 3 is interposed between bars 1 2 and attached at its forward end to the forward end of the upper bar 1, and the other or rear end of the bar 3 is attached to the rear end of the lower bar 2, as shown in Fig. 1. Another brace 4 is attached at one end to the rear end of bar 1 and extends downward and forward to the bar 3, and several struts 5 are interposed between the bars, as will be seen in Fig. 1. A wire-netting 6 is secured on the inside of the sides to close the aperture between the bars and struts, which prevents the hose from sliding out through same, but can be of any suitable material. The two sides are connected together by cross-bars 7, and to which is secured the bottom 8. The forward end of the box or bottom (designated as 10) slants upward and forward, which allows a hose to pass under and up through the turn-table, as best seen in Fig; 3. It will be seen in Fig. 1 that the bar 3, being attached to the forward end of the bar 1 and to the rear end of the lower bar 2, prevents any end vibration of the two parallel bars; but to further assist in securing the lower bar to the bar 3 a metal brace 9 is secured to the lower part of the frame of the box and extends upward and forward to the bar 3, as shown in Figs. 1, 3.

At the rear end of the truck uprights 12 are secured on opposite sides of the truck-frame to the rear cross-bar 7 and extend upward and inward and are connected together at their upper ends by the cross-rod 13, as best seen in Fig. 2. The uprights are also secured to the bar 1, preferably by brackets 14, but other means can be used. A truss-rod 15 is attached to the upper end of each upright. Said truss-rod extends downward and over a strut 16 and through the cross-bar 7, and a bur 17, screwed on the lower end thereof, secures the truss to the cross-bar 7.

-A turn-table is mounted upon the forward end of the truck-frame and is constructed so that the upper section 19 may turn upon the lower section 20.

The tower which is employed herein and mounted upon the turn-table consists of a main ladder (designated as E) and an extensible section F, movable on the main section. The main section is pivoted at one end to the turn-table or at 21 to uprights 22, secured to the rotary section 19 of the turn-table. A pair of lifting-levers 23 are pivoted at one end at 24 to the uprights 22 at a point which is above and forward of the pivot of the main ladder, the free ends of the levers leading to and movable on opposite sides of the ladder and connected together by a cross-rod 25, movable under the ladder, as seen in Figs. 1, 3, and 4. A hoisting-cable 26 is connected to'the ends of the lifting-levers (or cross-rod) and leads upward or outward to and over pulleys 27 mounted on opposite sides of the ladder, as at 28, said cables returning therefrom forward to and over pulleys 29, mounted on the uprights 22, as at 30, at a point which is above and'forward of the pivot 21 of the ladder, said cable leading thence to awindlass 31, as shown in Figs. 1, 4. The Windlass can be of any suitable construction and location other than shown.

It is manifest that by pivoting the liftinglevers above and forward of the pivot of the ladder and hoisting-cables leading from the levers to the pulley which is mounted on the ladder the lifting-levers do not bend or buckle under the strain caused by the hoistingcables in elevating the ladder, and by mounting the pulleys 27 on the ladder, which is generally trussed and of rigid construction, no brace is employed rearward of the ladder, and a lighter and stronger structure is obtained.

On the upper or outer end of the extensible section F of the ladder (or tower) a nozzle 35 is mounted on a cross-rod 36, and a hose 37 is connected with the nozzle and leads to the foot end of the ladder and through the turntable and into the hose-box, as best seen in Fig. 3. A pulley (or quadrant) 38 is rigidly secured to the shaft 36, which is also rigidly connected with the nozzle, or the pulley can be secured rigid to the nozzle or form part of the nozzle. A spring 39 is attached to the pulley or nozzle and to the tower at a point which will cause the nozzle to swing outward and upward when the tower is in a horizontal position and also operate to keep the nozzle cable under tension and may be adapted to throw the nozzle over forward, if desired.

A cable 40 is attached to the pulley 38 and leads down toward the foot end of the main section to and over a pulley 41, thence to a Windlass 42, secured on the main section A cable 43 connects the pulley 41to a second Windlass 44, located remote from the Windlass 42, and is provided with a ratchet and pawl, as is usual with a Windlass. A cable 45. for extending the extensible section F is also secured to the Windlass 42, which is provided with a ratchet and pawl. Said cable leads from this Windlass to a pulley 46 on the outer end of the main section and thence to the lower end of the extension-section.

As will be seen in the drawings, the cable for extending the upper section and the cable for regulating the nozzle both wind and unwind on the Windlass 42; but as the cable 45 is wound on the drum to extend the upper section the nozzle-cable is unwound to the same extent and heretofore has required two separate mechanisms for this purpose. To regulate the swing of the nozzle, the cable 43, to which the pulley 41 is attached, is wound or unwound on the Windlass 44 and which does notinterfere with the operation of the Windlass 42, nor does the extending or distending of the upper section change the position of the nozzle.

Having thus described my invention, what I claim as new, and desire to secure by Letters Patent, is I 1. In a fire-apparatus truck, the sides of which are each composed of two parallel bars, the front end of the lower bar being remotely back of the front end of the top barand to the rear of the front axle, said lower bar extending to the rear end of the truck, a diagonal bar connected at one end to the front end of the top bar and at the other end to the rear end of the lower bar, a brace attached at one end to the rear end of the top bar and extending forward and down to the diagonal bar, struts interposed between the bars, and transverse cross-bars connecting the sides and supporting a floor between said sides,substantially as described.

2. The truck-frame comprising two sides, each composed of two parallel bars, the front end of the upper bar extending forward beyond the front end of the lower bar, a third bar attached at one end to the front end of the upper bar and extending rearward and down to the lower bar, struts interposed between said bars, and means connecting the two sides together-in pairs, as set forth.

3. The truck-frame comprising two sides, each consisting of a plurality of bars, one of said bars extending forward beyond the front end of a lower bar, a truss-bar secured to the front end of said upper bar and extending downward and rearward toward the said lower bar, and means connecting the two sides together in pairs.

4. The truck-frame comprising two sides, each consisting of two parallel bars, one above the other. the front end of the top bar extending forward beyond the front end of the lower bar which is rearward of thefront running-gear, a diagonal bar fastened at one end to the front end of the top bar and extending therefrom to and fastened to the lower bar, transverse cross-bars between said sides and a floor thereon, all for the purpose set forth.

5. The truck-frame comprising two sides, each side composed of a plurality of bars, comprising an upper bar extending forward beyond the front end of a lower bar, and a truss-bar secured to the front end of said upper bar and extending rearward and down toward said lower bar, struts interposed between said bars, and abottorn secured between said sides, as set forth.

6. The combination in a truck, of the sides of said truck composed of a plurality of bars, cross-bars connecting the two sides together and also supporting a floor between said sides, a turn-table mounted on the front end of said frame, a ladder pivoted thereon, means on the turn-table adapted to elevate the ladder; a cross-bar extending out from the two sides of the truck-uprights rising from both ends of said bar and inclined inward, truss-rods attached to the top end of said uprights and extending down to the said cross-bar, a crossrod connecting the top ends of said uprights and adapted to support the free end of the ladder when lowered upon the truck, as set forth.

7. The combination with the truck-frame, of cross-bar extending out from the two sides of the truck, uprights rising therefrom, trussrods attached to the top of said uprights and extending down through the ends of said cross-bar, a strut interposed between each truss and upright, and burs screwed on the lower ends of said truss-rods, substantially as described.

In testimony whereof I have hereunto subscribed by name to this specification, at Oreston, in the county of Union and State of Iowa, this 1st day of March, 1904, in the presence of two subscribing witnesses.

BUR DETT B. BRIGGS.

Witnesses:

WILLARD H. GODDARD, WARREN P. Rome.