(No Model.) 8 Sheets-Sheet 1. R. T. WAN WALKENBUR, G, CHEMICAL ENGINE, No. 413,837. Patented Oct. 29, 1889. Inventor: Rat1dall T. Vari Valker burd. (No Model.) 8 sheets-Sheet 2. R. T. WAN WALKENBURG, CHEMICAL ENGINE, No. 413,837. Patented 00t, 29, 1889. Wr1esses-62. 2-6,7- Randall T VariValkenburgTrventor * - Attu N. PETERs, Photo-Lithographer, Washington, D.C. (No Model.) - 8 sheets-sheet 3. R. T. WAN WALKENBURG CHEMICAL ENGINE, No. 413,837. Patented Oot. 29, 1889. Figid.E. s. -- it. r: SNSSaaSSSSSSS e N N a - ill -- T. -Ele t Win Ess ps . Irventor: -62, 2%.7 Randall T.VariValkenburg . Attu - N. Peters. Photo-Lithographer, Washington, D.C. UNITED STATES PATENT OFFICE. RANDALL T. WAN WALKENBURG, OF MUSKEGON, MICHIGAN, ASSIGNOR TO THE MUSKEGON CHEMICAL FIRE ENGINE COMPANY, OF SAME PLACE. CHEMICAL ENGINE. SPECIFICATION forming part of Letters Patent No. 418,837, dated October 29, 1889. Application filed June 5, 1889, Serial No. 313,221 (No model.) To all whom it may concern. generator J is supported, and two openings Beit known that I, RANDALLT. WAN WAL on the sides, in which the boxes K K are Se KENBURG, a citizen of the United States, re cured, and which serve to carry the materials siding at Muskegon, in the county of Mus for charging the generator. 55 kegon and State of Michigan, have invented The generator forms a closed tank and is certain new and useful Improvements in suitably constructed to withstand a high de Chemical-Engines, of which the following is a gree of pressure, and for this purpose it is specification, reference being had therein to preferably made of cylindrical shape with the accompanying drawings. convex heads, as shown, and is Supported 60 IO This invention relates to new and useful upon the frame by means of the lugs a, se improvements in chemical-engines, intended cured to the sides of the generator. Near the to form an improvement on Letters Patent rear end this generator is provided with a No. 383,303, granted to me May 29, 1888; and dome L, which incloses the acid-chamber, and the invention consists in the novel construc the dome is provided with a removable head 65 tion, arrangement, and combination of differ L', detachably secured thereto, preferably by ent parts, all as more fully hereinafter de means of a screw-thread engagement, Suita Scribed, and specifically setforth in the claims. ble hand-holds L being formed on said head In the drawings which accompany this for conveniently screwing it on and off when Specification and form a part thereof, Figure required to charge the dome with the acid. 1 is a side elevation of my improved chem Into this dome L is fitted a removable cylin ical-engine. Fig. 2 is a plan thereof with the drical vessel M, which is provided with one hose-reel removed to show the parts below. or more vertical ribs M', which engage into Fig. 3 is a rear elevation. Fig. 4 is a diagram corresponding grooves on the inner face of plan of the mixer, generator, and connections the dome L, for the purpose of holding the 75 25 thereof. Fig. 5 is a vertical longitudinal sec vessel Min a fixed relation within the dome tion on line XX in Figs. 2 and 4. Fig. 6 is a L and prevent it from rotating therein. On horizontal section on line Y Yin Fig. 3. Fig. the bottom of this vessel is formed a spider 7 is a vertical central section on line Z, Z in M', which may be formed integral with the Fig. 2. Fig. 8 is a horizontal section on line ribs M', and which supports on a central step WW in Fig. 3. Fig. 9 is a detached per M8 the breaker-shaft M'. This breaker-shaft spective view of one of the perforated cups is provided at its lower end with the breaker shown in Figs. 7 and 8. arms M, and passes through a stuffing-box M All the operating parts of my chemical-en in the head of the dome, and bears a handle gine are mounted upon a light and strong M" for rotating it in its bearings. To the 85 35 frame mounted on two wheels AA on a curved walls of the inner vessel are secured the open axle B, and a small wheel C (see Fig.1) in the ended pockets N, adapted to Securely hold center in front of the wheels AA serves as a the acid-containing bottles O. The bottom. front support. The frame is preferably con of the vessel M is perforated or provided with structed of the longitudinal bars D, rigidly the screenP. 9o connected near the front and rear by cross To the top of the generator are connected bars E, with the inner longitudinal bars ex two discharge-pipes Q and Q', which are con tended in front and provided with a suitable trolled by the valves Q' and extend down draft appliance, such as the handle-bar F wardly in front of the generator. They con and the rope-pulley G. The frame is sup nect into the horizontal system of discharge 95 45 ported on the axle by means of springs, such pipes Q and Q', which form two distinct outer as the C-springs Hunder the side bars of the circuits around the ends and sides of the gen frame and the cross-spring I, which connects erator and terminate at the rear end near the the rear ends of the side springs and supports center in the coupling members Q and Q', to the frame in the center of the rear cross-bar which the fire-hose is adapted to be secured. I oc So of the frame. The frame thus constructed I preferably connect the two systems of dis forms an opening in the center, in which the charge-pipes into one single structure, which 418,837 forms a four-sided pipe-frame, supported by lution, is introduced into the mixing-tub U, brackets b on the four corners upon the cross and by turning the crank U' a quick solution or the side bars of the supporting-frame. At is effected. From there, by opening the valve different places in these discharge-pipes, pref V, the contents are drained into the gener erably at the corners, and in the center where ator, after which the valve V is closed. The the two systems are united, I place enlarged bottles containing the acid having been pre couplings S, S', and S. The couplings S at iously secured in the pockets N of the acid the four corners of the frame are preferably containing vessel, the lever M of the break 75 cast integral with the brackets b and are pro ing device is disengaged from the locking to vided with an opening on top, which is closed latch g. Then, by giving it a vigorous turn, by a screw-cap c, and in this opening is re the breaker-arms M at the lower end of the movably secured a cup T, made of perforated breaker-shaft will smash the bottles and al metal or wire screen. In the bottom of this low the liquid to escape through the perfo coupling is an opening or drip, which is closed rated bottom into the generator, all pieces of by a suitable drip-plug d. The couplings S' broken glass being retained in the vessel M. (5 S° are similarly constructed to the couplings The generator having now become charged, S, but are made twice as long and divided in a discharge may be effected by opening the center by a partition e, so as to form a either one of the valves in the discharge separate chamber for each system of dis pipes Q and Q’ or by opening both of the charge-pipes, and the coupling S is provided valves, as desired. Thus either one or two in the same manner as described for the coup streams may be obtained from the engine. lings S with the screw-cap and perforated The discharge through the discharge-pipe Q cup, and the drip at the bottom of the cham follows the system of pipes Q to the outlet Q, ber with the screw-plug. The coupling mem and the discharge through the discharge-pipe bers Q and Q are connected to or formed in Q' follows the system of pipes Q to the out tegral with the coupling S', as shown. The let Q' into the flexible hose connected thereto. coupling S is similarly constructed with the The object of the perforated cups T is to coupling S', except that the openings on top contain some dry carbonate for the purpose 95 of the coupling are connected to the dis of neutralizing all the acid which may possi charge-pipes Q and Q', respectively. bly be carried off from the generator uncon Upon the forward part of the frame is sup sumed, and thereby it not alone increases ported the mixing tub or cylinder U. This the pressure, but also prevents the waste of contains an axial shaft journaled in suitable acid and its injurious action in the discharge IOO bearings in the head of the cylinder, and is passages and hose. If the material in these 35 provided upon one end with the crank U' cups become spent, they may be readily re and within the cylinder with the stirring filled by unscrewing the cap c. wings U'.