Volume 23 (1871) (426 pages)

. xpusTRIAL PROGRESS, DEWEY Patent Solleitores, & CO., SAN FRANCISCO, SATURDAY, JULY 8, 1871. VOLUME wAIII. Wumber 1. Improved Tank Locomotive. To Mr. M. N. Forney, mechanical cngineer, who is the able New York correspondent of our valuable cotemporary, the Chicago Railroad Gazette, we are indebted for tho engraving of tho accompanying tauk locomotive of his design. / The special object of this design is to effect a great reduction in weight and cost as compared with the ordinary 8-wheeled locomotives now in general use. The common American 8-wheeled locomotive earries less than two-thirds of its weight on the driving-wheels. Now a 4-wheeled switching engine, weighing 18 tons, has all its weight on the driving-wheels, and con-. sequently will draw as many cars as an 8wheeled engine weighing 29 tons. But the lighter locomotive cannot be substi{ receivo the tank, aud placing a truck uuderneath to carry the weight of boiler and fuel. Thus s long wheel-base is obtained which adjusts itself to the curvature of the track, whilo the whole weight of the engine proper is carried on the drivingwheels. This secures the steadiness of the 8-w heeled locomotive and the adhesion of the one with four wheels, On tank locomotives the woight of the water and fuel should never be carried on the driving-wheels, because, when the tanks are full, the weight may be sufficient to injure the track, and, when empty, there is not sufficient adhesion. Henco, in this engine, all the permanent weight of boiler and machinery is carried on the drivingwheels, and the variable weight of water and fuel on the truck. It is safer to run an ordinary locomotive to keep open a communication to a separate tender, while in summer the hot air from the boiler is carried out of, instead of into, the cab. Thusthe cab is warmer in winter and cooler in summer. The footboard is between the driving wheels and truck, or near the center of thé engine, in the steadiest and most comfortable place for the engineer and fireman. These engines will answer a very good purpose for switching, but are intended fer general freight and passonger business. They will do any work possibly performed by ordinary locomotives of not over 28 to 30 tons weight, and are. especially adapted for light traffic or branch-road service. Engines of this plan, of various sizes, from 12 to 35 tons weight, and with cylinders from 6 to 15 inches diameter, will be furnished by Mr. M. N. Forney, No. 72 Mors Naturan Curiosities. — The Fresno Expositor learns from Mr. Powell, a civil engineer of Fresno county, that near the confines of Fresno, Tulare and Inyo counties, in the vicinity of the headquarters of the Keweah, there exists a remarkable piece of country. The Indians Say it is the abiding place of the Evil Spirit. The country is rugged and rocky mountaius, with deep valleys and precipitous cliffs. Snakes and reptiles of every description abound in untold numbers, and, taken in all, it isa wild and most nninviting region. But aside from this a most curiphenomenon exists. The gronnd trembles and quakes almost contiuuonsly, and the abundant rocks grind and grit together as if being urged by some terrible influence. Frequently deep discharges are heard,’muffled and dull, like the distant tuted for the heavier oue on account of its unsteadiness, arising from the shortness of its wheel-base. It is necessary to place the wheels close together, in order to pass around short curves easily. So great is the objection to placing the wheels far apart, that in this country nearly all locomotives which are designed to run at any speed, are built with a truck which is connected with the engine so that the wheels can adjust themselves to the curvature of the track. It is found necessary, in order to keep the truck on the track, to load it with about one-third the weight of the locomotive; this reduces the weight on the driving-wheels and consequently their adhesiou. That is, over a third of the weight of the locomotivo is sacrificed in order to have a long and flexible wheelbase and a steady-running engine, The locomotive here illustrated obviates this trouble, not only by carrying all the weight of the boiler and machinery on the driving-wheels, but also by extending the frame beyond the fire-box far enough to NEW TANK LOCOMOTIVE, DESIGNED BY M. N. FORNEY. on a crooked road with the truck ahead rather than behind. The source of danger is notin the position of the truck, but in the rigidity of the rear wheols. For this reason, in this design the engine is intended to run with the truck ahead. This brings the boiler, smoke stack, etc., behind,—a plan which, instead of being disadvantageous, is claimed to have some adyantages. The most noticeable of these is the influence of the motion of the locomotive (in the opposite direction to that of the air and the smoke in the tubes) on the draft. It stimzlates the draft, which is retarded in the common method. Again, this disposition gives an unobstructed view of the track, and there is no liability of its being obscured by smoke or escape steam, the latter often forming a serious inconvenience, especially in cold weather, when the condensed water freezes on the cab windows. The cabof a tank engine of this plancan be entirely enclosed in cold weather, it not . being necessary (as on an ordinary engine) Broadway (Room 7), New York City. Hyps Steam Wacon. — The Corinne Journal says -the Hyde overland steamer was trotted out the other day, and gave satisfaction even to the croakers, all hands having a free ride. It is to be shipped at once te Lake Point and put to work hauling ore, etc. The Reporter says: It appears to swing around in the road, at command of the steering apparatus, easier than a man could turn a wheelbarrow on a matched fioor! This great engine will draw its thirty or forty tons of freight in trained vans or wagons as readily as it moyes unloaded. It is the king of the road in every way. In twenty feet it turns completely around going at its speed, stops with the touch of a valve, und when desired to move, on takesup its march with a step that ordinary obstruction cannot retard. Pouar Researcu.—Mr. A. L. Pinart left this city a few months since for Alaska to investigate the scientificand commercial resources of that country, sound of heavy artillery. At night the sounds seem to be more abundant than in day time. No Indian can be induced to venture near the locality, regarding it with superstitious horror. No theory is advanced by any one to account for the strange phenomena mentioned. We also learn from William Faymonville that above the head of Crane Valley, in this county, another place similar to the one mentioned exists. Parties who have visited the last place named describe the sounds mentioned as like muffled thunder. AvusTratia Mineraus.—We have been shown a catalogue of mineral specimens, sent by Capt. H. R. Hancock, Superintendent of the Moontamines, of South Anstralia, as a present to the University of the Pacific. The ores are all of copper. The Moonta mines yield-an annnal product of 4,600 tons of pure bar copper. Tre Sutro Tunnel Commissioners hayving reached Virginia City, the papers there are interviewing them,

. xpusTRIAL PROGRESS, DEWEY Patent Solleitores, & CO., SAN FRANCISCO, SATURDAY, JULY 8, 1871. VOLUME wAIII. Wumber 1. Improved Tank Locomotive. To Mr. M. N. Forney, mechanical cngineer, who is the able New York correspondent of our valuable cotemporary, the Chicago Railroad Gazette, we are indebted for tho engraving of tho accompanying tauk locomotive of his design. / The special object of this design is to effect a great reduction in weight and cost as compared with the ordinary 8-wheeled locomotives now in general use. The common American 8-wheeled locomotive earries less than two-thirds of its weight on the driving-wheels. Now a 4-wheeled switching engine, weighing 18 tons, has all its weight on the driving-wheels, and con-. sequently will draw as many cars as an 8wheeled engine weighing 29 tons. But the lighter locomotive cannot be substi{ receivo the tank, aud placing a truck uuderneath to carry the weight of boiler and fuel. Thus s long wheel-base is obtained which adjusts itself to the curvature of the track, whilo the whole weight of the engine proper is carried on the drivingwheels. This secures the steadiness of the 8-w heeled locomotive and the adhesion of the one with four wheels, On tank locomotives the woight of the water and fuel should never be carried on the driving-wheels, because, when the tanks are full, the weight may be sufficient to injure the track, and, when empty, there is not sufficient adhesion. Henco, in this engine, all the permanent weight of boiler and machinery is carried on the drivingwheels, and the variable weight of water and fuel on the truck. It is safer to run an ordinary locomotive to keep open a communication to a separate tender, while in summer the hot air from the boiler is carried out of, instead of into, the cab. Thusthe cab is warmer in winter and cooler in summer. The footboard is between the driving wheels and truck, or near the center of thé engine, in the steadiest and most comfortable place for the engineer and fireman. These engines will answer a very good purpose for switching, but are intended fer general freight and passonger business. They will do any work possibly performed by ordinary locomotives of not over 28 to 30 tons weight, and are. especially adapted for light traffic or branch-road service. Engines of this plan, of various sizes, from 12 to 35 tons weight, and with cylinders from 6 to 15 inches diameter, will be furnished by Mr. M. N. Forney, No. 72 Mors Naturan Curiosities. — The Fresno Expositor learns from Mr. Powell, a civil engineer of Fresno county, that near the confines of Fresno, Tulare and Inyo counties, in the vicinity of the headquarters of the Keweah, there exists a remarkable piece of country. The Indians Say it is the abiding place of the Evil Spirit. The country is rugged and rocky mountaius, with deep valleys and precipitous cliffs. Snakes and reptiles of every description abound in untold numbers, and, taken in all, it isa wild and most nninviting region. But aside from this a most curiphenomenon exists. The gronnd trembles and quakes almost contiuuonsly, and the abundant rocks grind and grit together as if being urged by some terrible influence. Frequently deep discharges are heard,’muffled and dull, like the distant tuted for the heavier oue on account of its unsteadiness, arising from the shortness of its wheel-base. It is necessary to place the wheels close together, in order to pass around short curves easily. So great is the objection to placing the wheels far apart, that in this country nearly all locomotives which are designed to run at any speed, are built with a truck which is

connected with the engine so that the wheels can adjust themselves to the curvature of the track. It is found necessary, in order to keep the truck on the track, to load it with about one-third the weight of the locomotive; this reduces the weight on the driving-wheels and consequently their adhesiou. That is, over a third of the weight of the locomotivo is sacrificed in order to have a long and flexible wheelbase and a steady-running engine, The locomotive here illustrated obviates this trouble, not only by carrying all the weight of the boiler and machinery on the driving-wheels, but also by extending the frame beyond the fire-box far enough to NEW TANK LOCOMOTIVE, DESIGNED BY M. N. FORNEY. on a crooked road with the truck ahead rather than behind. The source of danger is notin the position of the truck, but in the rigidity of the rear wheols. For this reason, in this design the engine is intended to run with the truck ahead. This brings the boiler, smoke stack, etc., behind,—a plan which, instead of being disadvantageous, is claimed to have some adyantages. The most noticeable of these is the influence of the motion of the locomotive (in the opposite direction to that of the air and the smoke in the tubes) on the draft. It stimzlates the draft, which is retarded in the common method. Again, this disposition gives an unobstructed view of the track, and there is no liability of its being obscured by smoke or escape steam, the latter often forming a serious inconvenience, especially in cold weather, when the condensed water freezes on the cab windows. The cabof a tank engine of this plancan be entirely enclosed in cold weather, it not . being necessary (as on an ordinary engine) Broadway (Room 7), New York City. Hyps Steam Wacon. — The Corinne Journal says -the Hyde overland steamer was trotted out the other day, and gave satisfaction even to the croakers, all hands having a free ride. It is to be shipped at once te Lake Point and put to work hauling ore, etc. The Reporter says: It appears to swing around in the road, at command of the steering apparatus, easier than a man could turn a wheelbarrow on a matched fioor! This great engine will draw its thirty or forty tons of freight in trained vans or wagons as readily as it moyes unloaded. It is the king of the road in every way. In twenty feet it turns completely around going at its speed, stops with the touch of a valve, und when desired to move, on takesup its march with a step that ordinary obstruction cannot retard. Pouar Researcu.—Mr. A. L. Pinart left this city a few months since for Alaska to investigate the scientificand commercial resources of that country, sound of heavy artillery. At night the sounds seem to be more abundant than in day time. No Indian can be induced to venture near the locality, regarding it with superstitious horror. No theory is advanced by any one to account for the strange phenomena mentioned. We also learn from William Faymonville that above the head of Crane Valley, in this county, another place similar to the one mentioned exists. Parties who have visited the last place named describe the sounds mentioned as like muffled thunder. AvusTratia Mineraus.—We have been shown a catalogue of mineral specimens, sent by Capt. H. R. Hancock, Superintendent of the Moontamines, of South Anstralia, as a present to the University of the Pacific. The ores are all of copper. The Moonta mines yield-an annnal product of 4,600 tons of pure bar copper. Tre Sutro Tunnel Commissioners hayving reached Virginia City, the papers there are interviewing them,