Volume 24 (1872) (424 pages)

eo Ve Teo Tea Vo Teo Foto a Te Yo "se Yoo * 0 Fs 2S Ope ava a & ©, 8 > BY DEWLY & Co., Patent Solleltors, Fix! ]etustRATED JOURNAL OF SCIENTIFIC > echani¢ Avis and AND 4 NDUSTRIAL PROGRESS, nentions. SAN FRANCISCO, SATU RDAY, JANUARY 13, 1879, VOLUME XXIV. Number 2. Freeman’s Grain Separator. Theaccompanying illustration represeuts Freeman's improved grain separator, which belongs to a class of machinery in which our local mechanics excel Easteru manufactnrers in producing for this Coast. It is intended for farnicrs and warehouse use, and will bo fonnd especially useful to the latter iu cleaning seed graiu. ‘The graiu is fed into the hopper and passes ever a wire sievo to which is imparted a peculiar tossing motion and at the same time moves forward aud hack rapidly. It then drops ou to the perforated zine plates of which sereens there are three, aud while dropping through, a blast of air from the fan helow, blows off the chaff and other impurities. These plates may be lowered hy tlhumb-secrews so as to stand at any desired incline. They have a lateral shaking motion so as to facilitate the passage of the grain through the holes, The cheat and other deleterious substances drop through the sieve into the cheat box below and the cleaned grain into Freeman’s Grain Separator. its proper receptacle. The different boxes have separate outlets and are so arranged that the contents may easily he sacked without the necessity of anything falling on the floor. The machine is run by hand and can be easily moved from place to place. It will be found especially useful in cleaning grain of the Silene Gallica, or French cateb fly, a sort of pod which troubles the farmers in many parts of California. The sercen may be removed and attached to any threshing maehine, doing away with the chaffing screen and performing the work at one operation. There are tbree sets of zine plates and screons for different kinds of grains and they can be changed in a féw momonts without trouble. This improvement is the invention of a practical mau and one wlio has had great experieuce with tbreshers. Right of use may be had by applying to W. H. Freeman, Tomales, Marin county, Cal., who will also give further information to those desiring it. 2: am se New Dam Prosect.—Certain parties contemplate purchasing Bear Valley of its present owners, says the Grass Valley Renublican, and constructing adam 50 or 60 feet high at the lower end. Such a dam would overflow several hundred acres and furnish a large amount of wator for mining purposes. Bear Valley is about 4,000 feet above sea levol. Water from tbe valley could be taken to the miues at Dutch Flat, Little York, Quaker Hill, or even down the Washington Ridge to Omega, or Nevada City. Hoisting Works of the Eberhardt & Aurora Go. In the issue of the Screnrrere Press of Dec. 23, 1871, we gave a discription of the mines of the Eberhardt & Aurora Co., in the illustration of which several shafts were shown, and promised at that time to give a view of the mauner in which the hoisting was done so that only oue engine was required for hoisting frem the entire number of shafts, Our special corres-. pondent, Mr. Murray, ohtained for us at the time of his visit a sketch of the gear from which our engravings were made. The arrangement consists of a pulley monnted upon aturn-table on a suitable frame, so that it can be turned npona Big?'l. Hoisting Apparatus ; swivel to face in any desired direction. The rope passes round adrum which is revolved by the engine and passes under the pulley marked # in Fig.1. A, A, A, is the frame work for supporting the turntable and pulley, and is made stationary also; the rope passing under it and up through the centre of the turn-table over the pulley, D. B represents the turntable upou which the pulley, D, is supported in a frame-work so as to be carried around by tbe revolution of the turn-table in order to face it in the desired dircction. The plate or turn-table, B, is made of the best of iron and is three fcet and one inch from rim torim. The outside rim is half an inch thick and the groove is 134 inches wide. The rope comes up through the center of the turn-table and passes over the pulley, as shown. /# shows the manner in which the rope may come from the drnm and passing np tbrough the hole over the pulley, D, transmit the power in a dicate the direetion to the varions shafts that can be operated hy thé hoisting gear. A stationary frame witb a pulley over which the rope passes-is placed over each of the ore shafts; this is raised enough to bring the level of the rope on a line witb the revolving pulley, D. When it is necessary to hoist from any particular shaft, . the rope is detached from the hucket, the end taken to the proper shaft, passed over the pulley and the revolving pulley regulated so as to point in that direction, and it is ready for use. The contrivance is said to give general satisfaction ond answer all the requirements. In this mine therois a very large de posit of ore and several shafts are necessary in consequence; this ingenious arrangement has been contrived so as to reremove the necessity of a hoisting engine at each shaft. The mountain on whicb the mines are situated is a very high one and there is a great scarcity of wood, what is used being carried up on mules’ backs, making it expensive. Tbe water used for the engine, which is of 20-horse power, is obtaiued from the White Pine Water Co., by whom it is forced to the top of the hill. oe The Paul Process. We have from time to timecalled the attention of the mining community totbisradically new system for the working of ores. We say radically new, as while otber modes gather the precious metals by wet amalgamation, this is by electro-galvanic dry amalgamation. Connected with this process is also a new plan of pulverization of the quartz, which is done by a self-feediug and self-discbarging pulverizing barrel whereby quartz is made to reduce quartz, thus turning all wear and tear of pulverization to a profit, instead of a tax. We are informed that the new six-ton mill recently erected at Dun Glen; Ney., by Messrs. Sprague & Co., and where this process and machinery is in practical operation has demonstrated the process to be all Mr. Paul bas claimed for it. We bave been shown some of the ore as first reduced and passed through a No. 10 wire cloth; also the pulverized ore,'and tbe pulverized amalgamated ore containing 20 per cent. of mercury, without a particle being perrection at right angles. The arrows indiceptible to the naked eye, so finely disseminated is it through the ore, and lastly, a bottle containing gold as amalgamated, which is infinitesimal in fineness, that we are satisfied cannot be collected by water in motion. We have also seen a bar of gold worth several linudred dollars, one of several already extracted, aud whicb is estintated at .USU fine. There is oue thing in connection with this process which seems to be of peculiar value, and that is no base substances such as lead, zine, antimony, cepper or arseuic appear to enter into combiuutiou with the precious metal or vitiate the mercury. ‘I'v use My. Paul’s expression:—‘t They are placed in antagonism duriug the process of amalgamatiou, the mercury having an alfinity only for the precious metal.”’ We are glad to know that Mr. Paul, after so many years of Jahor to develop this system, is likely to be amply rewarded, and the great interest of mining ou this coast to be also substantially henefitted. We sbali keep our readers posted on the process as substantial and reliable data presents itself, 2: am oe Academy of Sciences, The Academy of Sciences held their regular meeting on Tuesday evening, Jan. 2d; 24 members present. Professor Ehrenberg and Professor Darwin were elected honorary members. The President stated that according to the revised constitution the Trustees were empowered to propose aunually the names of two ordinary memhers for life membership in consideration of important services rendered the Academy. The names of H. G. Bloomer and W. G. Hartford were proposed to be acted upon at the next meeting. In accordanco with the usual custom, President Blake read an interesting address, reviewing thocondition of the Academy, speaking of its prospects, and commenting forcibly on the general advantage of the diffusion of ecientific knowledge. He spoke of what science had done and what it will do, made some interesting remarks on science being necessary to health; the need of scientific teachers; the natural advautages of San Francisco for scientific study; the scientific education of women, and closed his address with some reference to the State Geological Survey. Mr. H. G. Bloomer, tbe curator of the Musenm, road his annual report, showing a growth of botb the cabinet and library. Mr. H. G. Hauks also presented his report as curator of minerals, etc. The Treasurer, Mr. Elisha Brooks, showed by his annual report that the total receipts were $1,279.35; disbursements, $1,166.50; balance on hand, $112.85. The result of the election of officers for the ensuing year, was as follows: President, Prof. George Davidson; Vice President, Dr. John Hewston; Recording Secretary, Dr. George Hewston; Corresponding Secretary, Henry G. Hanks; Treasurer, Elisha Brooks; Director of Museum, H. G. Bloomer; Librarian, C. M. Eliinwood; Trustees: Dr. C. M. Hitchcock, Dr. James Blake, Gen. John Hewston and Gen. David Colton.

eo Ve Teo Tea Vo Teo Foto a Te Yo "se Yoo * 0 Fs 2S Ope ava a & ©, 8 > BY DEWLY & Co., Patent Solleltors, Fix! ]etustRATED JOURNAL OF SCIENTIFIC > echani¢ Avis and AND 4 NDUSTRIAL PROGRESS, nentions. SAN FRANCISCO, SATU RDAY, JANUARY 13, 1879, VOLUME XXIV. Number 2. Freeman’s Grain Separator. Theaccompanying illustration represeuts Freeman's improved grain separator, which belongs to a class of machinery in which our local mechanics excel Easteru manufactnrers in producing for this Coast. It is intended for farnicrs and warehouse use, and will bo fonnd especially useful to the latter iu cleaning seed graiu. ‘The graiu is fed into the hopper and passes ever a wire sievo to which is imparted a peculiar tossing motion and at the same time moves forward aud hack rapidly. It then drops ou to the perforated zine plates of which sereens there are three, aud while dropping through, a blast of air from the fan helow, blows off the chaff and other impurities. These plates may be lowered hy tlhumb-secrews so as to stand at any desired incline. They have a lateral shaking motion so as to facilitate the passage of the grain through the holes, The cheat and other deleterious substances drop through the sieve into the cheat box below and the cleaned grain into Freeman’s Grain Separator. its proper receptacle. The different boxes have separate outlets and are so arranged that the contents may easily he sacked without the necessity of anything falling on the floor. The machine is run by hand and can be easily moved from place to place. It will be found especially useful in cleaning grain of the Silene Gallica, or French cateb fly, a sort of pod which troubles the farmers in many parts of California. The sercen may be removed and attached to any threshing maehine, doing away with the chaffing screen and performing the work at one operation. There are tbree sets of zine plates and screons for different kinds of grains and they can be changed in a féw momonts without trouble. This improvement is the invention of a practical mau and one wlio has had great experieuce with tbreshers. Right of use may be had by applying to W. H. Freeman, Tomales, Marin county, Cal., who will also give further information to those desiring it. 2: am se New Dam Prosect.—Certain parties contemplate purchasing Bear Valley of its present owners, says the Grass Valley Renublican, and constructing adam 50 or 60 feet high at the lower end. Such a dam would overflow several hundred acres and furnish a large amount of wator for mining purposes. Bear Valley is about 4,000 feet above sea levol. Water from tbe valley could be taken to the miues at Dutch Flat, Little York, Quaker Hill, or even down the Washington Ridge to Omega, or Nevada City. Hoisting Works of the Eberhardt & Aurora Go. In the issue of the Screnrrere Press of Dec. 23, 1871, we gave a discription of the mines of the Eberhardt & Aurora Co., in the illustration of which several shafts were shown, and promised at that time to give a view of the mauner in which the hoisting was done so that only oue engine was required for hoisting frem the entire number of shafts, Our special corres-. pondent, Mr. Murray, ohtained for us at the time of his visit a sketch of the gear from which our engravings were made. The arrangement consists of a pulley monnted upon aturn-table on a suitable frame, so that it can be turned npona Big?'l. Hoisting Apparatus ; swivel to face in any desired direction. The rope passes round adrum which is revolved by the engine and passes under the pulley marked # in Fig.1. A, A, A, is the frame work for supporting the turntable and pulley, and is made stationary also; the rope passing under it and up through the centre of the turn-table over the pulley, D. B represents the turntable upou which the pulley, D, is supported in a frame-work so as to be carried around by tbe revolution of the turn-table in order to face it in the desired dircction. The plate or turn-table, B, is made of the best of iron and is three fcet and one inch from rim torim. The outside rim is half an inch thick and the groove is 134 inches wide. The rope comes up through the center of the turn-table and passes over the pulley, as shown. /# shows the manner in which the rope may come from the

drnm and passing np tbrough the hole over the pulley, D, transmit the power in a dicate the direetion to the varions shafts that can be operated hy thé hoisting gear. A stationary frame witb a pulley over which the rope passes-is placed over each of the ore shafts; this is raised enough to bring the level of the rope on a line witb the revolving pulley, D. When it is necessary to hoist from any particular shaft, . the rope is detached from the hucket, the end taken to the proper shaft, passed over the pulley and the revolving pulley regulated so as to point in that direction, and it is ready for use. The contrivance is said to give general satisfaction ond answer all the requirements. In this mine therois a very large de posit of ore and several shafts are necessary in consequence; this ingenious arrangement has been contrived so as to reremove the necessity of a hoisting engine at each shaft. The mountain on whicb the mines are situated is a very high one and there is a great scarcity of wood, what is used being carried up on mules’ backs, making it expensive. Tbe water used for the engine, which is of 20-horse power, is obtaiued from the White Pine Water Co., by whom it is forced to the top of the hill. oe The Paul Process. We have from time to timecalled the attention of the mining community totbisradically new system for the working of ores. We say radically new, as while otber modes gather the precious metals by wet amalgamation, this is by electro-galvanic dry amalgamation. Connected with this process is also a new plan of pulverization of the quartz, which is done by a self-feediug and self-discbarging pulverizing barrel whereby quartz is made to reduce quartz, thus turning all wear and tear of pulverization to a profit, instead of a tax. We are informed that the new six-ton mill recently erected at Dun Glen; Ney., by Messrs. Sprague & Co., and where this process and machinery is in practical operation has demonstrated the process to be all Mr. Paul bas claimed for it. We bave been shown some of the ore as first reduced and passed through a No. 10 wire cloth; also the pulverized ore,'and tbe pulverized amalgamated ore containing 20 per cent. of mercury, without a particle being perrection at right angles. The arrows indiceptible to the naked eye, so finely disseminated is it through the ore, and lastly, a bottle containing gold as amalgamated, which is infinitesimal in fineness, that we are satisfied cannot be collected by water in motion. We have also seen a bar of gold worth several linudred dollars, one of several already extracted, aud whicb is estintated at .USU fine. There is oue thing in connection with this process which seems to be of peculiar value, and that is no base substances such as lead, zine, antimony, cepper or arseuic appear to enter into combiuutiou with the precious metal or vitiate the mercury. ‘I'v use My. Paul’s expression:—‘t They are placed in antagonism duriug the process of amalgamatiou, the mercury having an alfinity only for the precious metal.”’ We are glad to know that Mr. Paul, after so many years of Jahor to develop this system, is likely to be amply rewarded, and the great interest of mining ou this coast to be also substantially henefitted. We sbali keep our readers posted on the process as substantial and reliable data presents itself, 2: am oe Academy of Sciences, The Academy of Sciences held their regular meeting on Tuesday evening, Jan. 2d; 24 members present. Professor Ehrenberg and Professor Darwin were elected honorary members. The President stated that according to the revised constitution the Trustees were empowered to propose aunually the names of two ordinary memhers for life membership in consideration of important services rendered the Academy. The names of H. G. Bloomer and W. G. Hartford were proposed to be acted upon at the next meeting. In accordanco with the usual custom, President Blake read an interesting address, reviewing thocondition of the Academy, speaking of its prospects, and commenting forcibly on the general advantage of the diffusion of ecientific knowledge. He spoke of what science had done and what it will do, made some interesting remarks on science being necessary to health; the need of scientific teachers; the natural advautages of San Francisco for scientific study; the scientific education of women, and closed his address with some reference to the State Geological Survey. Mr. H. G. Bloomer, tbe curator of the Musenm, road his annual report, showing a growth of botb the cabinet and library. Mr. H. G. Hauks also presented his report as curator of minerals, etc. The Treasurer, Mr. Elisha Brooks, showed by his annual report that the total receipts were $1,279.35; disbursements, $1,166.50; balance on hand, $112.85. The result of the election of officers for the ensuing year, was as follows: President, Prof. George Davidson; Vice President, Dr. John Hewston; Recording Secretary, Dr. George Hewston; Corresponding Secretary, Henry G. Hanks; Treasurer, Elisha Brooks; Director of Museum, H. G. Bloomer; Librarian, C. M. Eliinwood; Trustees: Dr. C. M. Hitchcock, Dr. James Blake, Gen. John Hewston and Gen. David Colton.