1885. G. DAVIDSON, R. C. JACKSON, and J. B. DUNCAN. 3765. Improvements in the Manufacture of Filaments or Carbons for Incandescent Electric Lamps. Relates to method of cutting up the material used for filaments. 1885. C. A. DAY. 7321. Improvements in Carbonising Filaments for Electric Lamps, and in the Apparatus connected therewith. Describes a yielding carbonisable "former on which the thread is wound, the "former" yielding in the carbonising process, thus obviating the breaking of the filaments. SUBDIVISION III. STORAGE BATTERIES. 1882. J. H. JOHNSON. (From A. DE MÉRITENS.) 1173. Improvements in Secondary Batteries or Electric Accumulators.—(Provisional.) Mounted lead plates in wood frames, the edges of the frames being fitted with rubber. A number of these frames are bolted together to form the battery, the spaces between the plates being filled with acid and water. Spongy metallic lead plates are formed by taking insoluble or only slightly soluble salts of lead and casting same into moulds. These moulds are reduced to the metallic state by being placed at the cathode of any suitable electric generator. 1882. G. MOLLOY. 1455. Improvements in Secondary Batteries for the Storage of Electricity. (Provisional.) Several plates of thin sheet lead, closely corrugated, are fitted into wood frames; the frames are placed side by side in a box which is lined with lead; the corrugations in the plates are filled with red oxide of lead. 1882. W. B. BRAIN. Improvements in Secondary Batteries. 1548. The plates are made in the form of chambers, bags, or closed envelopes of thin sheet lead, in which is enclosed the oxidising and deoxidising agent, one set of holes being forced through from one side, and another set of holes forced through from the other side. 1882. A. TRIBE. 1587. Improvements in Secondary Batteries. Employs a negative plate consisting of peroxide of lead in a solidified form. The positive plate employed may be of any suitable element. 1882. J. H. JOHNSON. 1769. Improvements in Secondary Batteries. Construction of tanks or vessels for containing the electrodes. 1882. D. G. FITZGERALD, C. H. W. BIGGS, and W. W. BEAUMONT. 1875. Improvements in Secondary Batteries. Describes porous lead electrodes made by electro-depositing lead in a loosely coherent or crystalline form, partially oxidising the same, and then compressing the mass into cakes or plates of any suitable form. 1882. C. V. BOYS. Improvements in the Construction of Secondary Batteries. 1946. Describes method of producing finely-divided lead, as follows:-Melt lead and pour it in a suitable receptacle, and gently move it until it begins to granulate; the receptacle is then violently shaken and reduced to a fine powder; it is then sifted and spread in layers on metallic plates or other supports. 1882. C. H. CATHCART and C. B. G. COLE. A New or Improved Secondary Battery. 2068. Employs a plate or surface formed of electrolytically deposited and amalgamated pure zinc in combination with a plate or surface of oxide of lead, both being immersed in a solution of zinc sulphate acidulated with sulphuric acid. 1882. T. CUTTRISS. 2135. An Improved Process for Forming or Preparing Lead, in the Shape of Plates or otherwise, for Secondary Batteries or Magazines of Electricity, and an Improved Construction of Battery. Prepares lead plates by means of sulphuric acid, nitric acid, and chromic acid, and connecting them to the positive pole of a galvanic battery. 1882. A. TRIBE. Improvements in Secondary Batteries. 2263. Employs metal plate for supports of negative elements which have been to a greater or lesser extent converted into sulphides, arsenides, oxides, phosphides, or other compounds not easily acted upon by electrolytic action. Uses finely-divided lead, compressed, as positive plate. 1882. J. PITKIN. 2391. Improvements in the Construction of Secondary Batteries, applicable also to Improvements to Patent 5451, 1881. A frame consisting of enclosing surfaces formed of louvre-like strips or laths of ebonite or other material, and being placed obliquely; two frames placed so that the laths incline inwardly; between the laths lead turnings are placed. 1882. H. H. LAKE. 2409. Improvements in Electric Accumulators or Secondary Batteries.-(Provisional.) Lead plates are used as electrodes, and the space between the same is divided in two equal parts by a porous partition; the two compartments are filled with lead turnings, shavings, &c. 1882. C. W. VINCENT. (Partly communicated by W. B. F. ELPHINSTONE.) Improvements in Secondary Batteries.—(Provisional.) 2491. In this arrangement lead in solution is preferably employed, as it contains a large quantity of occluded or nascent hydrogen. The lead may be deposited in a finely-divided state either by electrolysis or by chemical process. Employs also a combination of finely-divided lead with carbon. Employs pyrophoric lead, which, after compression, is converted into the hydride of lead. 1882. J. S. WILLIAMS. 2558. Improvements in and relating to the Generation, Storage, Distribution, Regulation, and Utilisation of Electricity, and Apparatus therefor, &c. System or apparatus described for distributing and utilising electricity for lighting and other purposes, by means of generators, storage batteries, &c. Describes also lead and carbon, combined, used in storage batteries. Improvement in the Arrangement and Construction of Secondary Batteries, &c. (Provisional.) Plates in form of beehive, with corrugated or fluted sides 2643. 1882. A. MUIRHEAD. Improvements in the Manufacture of Secondary Batteries. 2658. Lead plates prepared or formed by placing the plates in a vat through which a stream of solution containing lead is caused to flow, and then producing deposits upon the plates by electrolysis. 1882. W. B. BRAIN. 2659. Improvements in Primary and Secondary Batteries, &c.-(Void.) Increases efficiency of electrodes by subjecting them to considerable pressure before or after the preliminary charging operation. 1882. A. P. PRICE. 2722. Improvements in Secondary Batteries. The negative element of peroxide of lead, also the positive element of metallic lead, is encased or otherwise protected by or in spongy india-rubber. 1882. L. EPSTEIN. Improvements in Secondary Batteries. 2807. Employs permanganate of potash, or other permanganate, or permanganic acid, as an oxidising agent. 1882. R. H. WOODLEY and H. F. JOEL. 3221. 1882. Improvements in Secondary Batteries or Accumulators.—(Provisional.) Electrodes formed of lead wool. 3240. T. S. SARNEY and J. M. ALPROVIDGE. Improvements in the Manufacture and Preparation of Plates for Electric Accumulators. Uses plates of thin laminated metallic sheets impregnated with lead or other metallic oxides, peroxides, or sulphates. 1882. G. L. WINCH. 3532. Improvements in Secondary or Polarisation Batteries for the Storage of Electric Energy. Use in secondary batteries of cork or pith on the sides of the plates, salts of aluminum and double salts of alum, either separately or in conjunction with sulphate of copper or sulphate of zinc, with plates of lead and copper, lead and zinc, and lead. 1882. F. J. BOLTON. Improvements in Secondary Batteries. 3592 Encloses secondary cells in an air-tight casing, so that there shall be no escape for the gases evolved, the pressure of such gases increasing the action of the battery. Also describes various methods of p paring the plates by mixing chloride or oxychloride of lead with an oxide of lead, and reducing this mixture by means of zinc. 1882. H. T. BARNETT. 3964. Improvements in Secondary or Storage Batteries and in Apparatus connected therewith. Uses finely-divided lead and felt asbestos in alternate layers. Also describes the use of an automatic electrode which breaks the charging circuit, so as to cut the accumulator out when charged. 1882. W. A. BARLOW. (From L. ENCAUSSE and Mons. CANÉSIE.) Improvements in Accumulators or Secondary Batteries. 4299. The electrodes are made of tubes or sheets separated by an insulating body, the plates being surrounded on all sides with a sea salt or chloride of sodium. The cells do not contain any liquid, and are called by the inventors a dry accumulator. 1882. C. T. KINGSETT. Improvements in Secondary Batteries. 4735. Describes the use of a solution of hydrates or salts of alkalies as electrolytes in conjunction with the positive and negative plates. Also of a positive electrode of iron coated with lead, or with magnetic oxide of iron, in contact with a proto-compound of lead, and a negative electrode of carbon coated with peroxide of lead. 1883. H. J. HADDAN. (From E. BOETTCHER.) Improvements in Secondary or Storage Batteries. 317. Relates to the charging of a secondary cell with a solution of pure sulphate of zinc, and forming the positive electrode by sending a current through thin sheet zinc or lead dipping into this solution; the negative plate being formed by sending a current through thin sheet lead coated with porous lead and dipping in the same solution. 1883. A. L. NOLF. 482. Improvements in the Construction or Formation of a Secondary Battery or Accumulator of Electricity.-(Provisional.) Employs a spongy lead plate as one electrode, used in conjunction with an lectrode made from a mixture of pure minium and spongy lead and charcoal; the liquid employed is a solution of caustic soda. 1883. A. M. CLARK. (From See Lighting Railway Trains, &c. 631. |