A. Walsh's Champion Water Wheel Governor Nearly 1,500 in Use

Cambridge, NY: A. Walsh. Good. 1875. Ephemera. [Broadside]; 1 pages; Advertising broadside measuring 28 cm X 23.5 cm with images of two water wheel governors and one detail figure along with explanatory text describing the workings of the machines. The sheet has been folded into six segments, some edgewear and tiny tears, one small hole where the sheet was pinned to a book. This particular copy has 19th century annotations in pencil indicating the prices of the respective machine models and an address in Bristol, CT (possibly where the machinery might be purchased). C. 1875 (See Scientific American, May 8, 1875, p, 294) An interesting illustrated advertisement for Text describing the operation of the Water Wheel: The water wheel governor herewith illustrated is one we has been in practical use for some years meeting with a widespread success. It has, however, been made the subject, from time to time, of various modifications, tending to simplify its form and add to its strength and general efficiency. The engravings, Figs. 1 and 2, represent the invention in two different forms, in both of which the latest improvements are combined. The mechanism will be understood from the sectional view, Fig. 3, in which A is a vertical shaft, which, driven by a pulley shaft and bevel gearing, revolves the balls. The latter actuate the collar, B, in the ordinary way, and the collar in turn works the bell crank, C. To the bell crank is ing in oxygen,4; magnesium lamp, 5; binoxide of nitrogen | kind of oil or fat which can take its place for the lubricatio pivoted the connecting rod, D, which is similarly connected without sulphide of carbon, 6, and a jet of oxygen delivered of cotton spindles and like motions; and hence it is believed with the shield, E. This last is either a disk or a sector upon sulphur, 8. From this it appears that the mixture of that the fat of the mutton bird should be carefully tested for toothed wheel, F, and is provided in either case with a notch binoxide of nitrogen and sulphide of carbon is useless, that purpose. at the bottom, as shown in Fig. 3. With each revolution of shaft, A, an eccentric, G, through the rod, H, reciprocates the gravity pawls, I, one or the other of which engages the toothed wheel, F, according as the notch in the rim of the shield permits the engagement. As the collar, B, moves up and down with variations of speed, the shield is moved, by the connecting rod, D, above described, so that the notch in the shield allows of the action of the proper shaft pawls. The toothed wheel, F, is fixed to the shaft, J, which is connected to the gate shaft by suitable gearings. It is obvious that, when the notch in the shield stands mid-way between the pawls , I, neither of the pawls can act. Advantage is taken of this to limit the height to which the gate can be raised by the governor. A nut and arm, K, run along a thread cut on the shaft, J, Fig. 1. till it finally abuts against a shoulder turned on the shaft, and then turns with the shaft. At the same time the pin, L, is brought under a lug, M, formed on the hub of the shield. The shield is thus turned so as to bring the notch to the center, where, as neither of the pawls can act, the gate cannot be further raised. As soon as the speed of the general shafting, to which the governor is belted, increases, the action of the collar, B, and bell crank, C, Fig. 3, moves the notch of the center so that the proper pawl to lower the gate acts as before. Fig. 2 represents a governor made to act by two eccentrics, two systems of pawls, and two toothed wheels, so as to raise or lower the gate faster than the single system will : this style of governor being designed for certain turbines, the gates of which are operated with screws which require many turns to open or close the gate. A friction brake, N, Fig. 1, is employed to hold the shaft, J, from turning back, as it will in some cases during the intervals between the impulses imparted by the pawls. O os a lever which is used to detach the pawls from the ratchet when the gate is to be operated by hand to stop and start the wheel. In ordering a regulator it is always well, when possible, to state the kind and horse power of the wheel, what kind of machinery is being driven, and if the wheel is worked to nearly its full capacity; give also the number of turns the gate stem or hand wheel makes to open the full gates on the wheel where the regulatoris to be attached, as this will enable the proper gears to be sent to operate the gate of the wheel scientifically. Full directions for setting sent with each machine. A. WALSH, Cambridge, N.Y. .