baber/WOPTO huggingface dataset:
Patent GB-711111-A (GB)
Title: Improvements in or relating to apparatus for the electrolysis of alkali metal silicate solutions
IPC: C25B9/00
Filed: 1952-07-29
Abstract: <PICT:0711111/III/1> Apparatus for the electrolysis of solutions of alkali metal silicates comprises a cell compartment 1 having a mercury cathode the amalgam formed being circulated by a centrifugal pump 9 driven by a vertical shaft 10 to a concentric outer compartment through which water is passed for decomposition of the amalgam.  The compartments are separated by a cylinder 2 of steel protected by a rust-proof organic substance such as Neoprene or polyvinyl chloride, the cylinder resting on supports 3 in a well formed in the metal base 4.  As shown the amalgam is drawn through channels 11 in a sleeve 12 of inert organic material surrounding the shaft 10 and is forced through ducts 13, 14, and passes through the decomposition chamber in a spiral channel 15 returning to the chamber 1 under the cylinder 2.  The top surface of the base in both compartments may be shaped so that a liquid metal layer of constant depth is maintained allowing for its rotary motion.  The anode 6 is of wire gauze.  A rotary cylinder 16 is mounted on the shaft 10 for agitation of the electrolyte.  In a modification the cylinder 16 is driven independently of the pump and is provided with orifices through which electrolyte is impelled into the surrounding space; three separate spiral channels are provided for circulation of the liquid metal in the decomposing chamber.  Water may be supplied to the decomposition compartment through orifices in the base of the channels.  The distance between the anode and cathode surfaces should be small.  The electrolysis may be carried on until a solution in which the molecular ratio Si O2/Na2O is 4.4 or continued until a solution of pure silicic acid is obtained.  No gelatinous silica is formed on the anode.
Patent GB-447457-A (GB)
Title: Improvements in or relating to centrifugal separators
IPC: B01D45/12
Filed: 1935-07-05
Abstract: 447,457. Centrifugal separators. LAVIGNE, J. L ET, Playa de la Teja, Itabo, Matanzas, Cuba. July 5, 1935, No. 19306. [Class 23] An apparatus for separating entrained liquid from steam or other gas, comprises a helical tube 1 through which the mixture passes in a downward direction. The cross-section of the tube is shown in Fig. 3 ; the other lower portion forms a restricted channel or trough 4 for the collection of the separated liquid, and the wall slopes in a downward and outward direction to form the trough. Drain pipes 6 connect the trough 4 to conduits 7 which deliver the separated liquid to a trap 8. This permits the liquid to discharge but retains the steam or other gas. Baffles 9 are fixed in the tube to divert the separated liquid to the drain pipes 6. In a modification, the tube is expanded to form pockets at the points of withdrawal of liquid.
Patent GB-1180531-A (GB)
Title: Production of 2-Bornane Alkyl Ketones
Inventor: BUGIANESI ROBERT LOUIS
IPC: C07F9/535
Filed: 1968-04-24
Abstract: 1,180,531. Production of 2-bornane alkyl ketones. MERCK & CO. Inc. 24 April, 1968 [1 May, 1967], No. 19392/68. Heading C2C. [Also in Division C5] 2-Bornane alkyl ketones are prepared by treating camphor with an alkylidene triphenylphosphorane to form a 2-alkylidenebornane followed by reaction with diborane and then an oxidizing agent. Alkylidene triphenylphosphoranes can be prepared by reacting dry dimethylsulphoxide with a strong base to form a methylsulphinyl carbanion followed by reaction with an alkyl triphenylphosphorane halide. Instead of diborane itself LiAlH 4  may be added to a solution of the 2-alkylidenebornane in BF 3  etherate.
Patent GB-402182-A (GB)
Title: Improvements in or relating to motor vehicle bodywork
IPC: B60J7/185
Filed: 1932-07-09
Abstract: 402,182. Opening tops ; vehicle doors. DASTE, M. J., 12, Rue Pierre L'homme, Courbevoie, Seine, France. July 9, 1932, No. 19425. [Classes 103 (ii) and 108 (i).] In a movable roof for a vehicle the front rail is provided at its ends with locks adapted to engage upon two parallel catches supported by the fixed parts of the body. The movable front bar of the opening top is provided with a bolt b at each end having a locking bar c adapted to pass through a transverse aperture in catches secured to the fixed part of the vehicle such as at each end of the windscreen. The locking bars c are operated simultaneously by means of rods d projections e, a disk f and a handle or the like h. Each catch k, the catches being arranged parallel to one another, is conical, pyramidal, or like shape and is mounted on the windscreen pillars by any suitable means such as silent blocks and is provided with a sloping top k<1> to facilitate entrance into the corresponding aperture b2 in the bolt, a transverse aperture k<2> being provided for the locking bar. In the case of a sliding panel the catches are arranged horizontally parallel to the longitudinal axis of the vehicle. The catches are suitable for the dickey seat lids. The catches may be tapered upwardly and dovetail in horizontal section. Specification 370,837 is referred to.
Patent GB-628918-A (GB)
Title: New and improved drive-connecting mechanism
IPC: F16H3/32
Filed: 1947-07-21
Abstract: 628,918. Toothed gearing. ECKINGTON, F. J., (formerly SMITH, F. J.). July 21, 1947, No. 19490. [Class 80 (i)] For connecting and disconnecting a drive from a shaft 1 onto a gear 12 a gear 2 is slid into or out of mesh therewith. The gear 2 slides on splines on the shaft 1 and is actuated by an axially movable sleeve 6 through a thrust ring 5. The sleeve 6 which is prevented from rotating by lugs 19 engaging guides 11 has an internal thread co-operating with an external thread on a rotatable operating sleeve 8 which may carry a sprocket 7 for actuation by a chain.
Patent GB-807644-A (GB)
Title: Improvements relating to control systems for automatic machine tools
Inventor: CAIL ROLAND ALLAN
IPC: G05B19/4105
Filed: 1954-07-03
Abstract: 807,644. Electric selective signalling; electric copying-machines. ELECTRIC & MUSICAL INDUSTRIES Ltd. June 24, 1955 [June 3, 1954], No. 19542/54. Drawings to Specification. Class 40 (1). Relates to automatic machine-tools of the type described in Specification 807,643, in which the relative displacement between a tool and a work carrier in one co-ordinate direction depends on successive digital instructions derived from a record, the instructions being fed to stores and analogue converters and thence to a quadratic interpolator producing a control voltage. Discontinuities in the desired locus are provided for, in a described embodiment, by increasing the number of stores from four to six so that the operation of the means for applying groups of analogue instructions to the interpolator can be modified to cause successive groups of three to have no common instruction instead of two, in response to a special signal from the record. The machine also has means responsive to a further special signal to change the gear ratio of a gear-box operating the interpolator shaft to correspond to a change of ordinate spacing when required.
Patent GB-1065664-A (GB)
Title: Improved piloted valves
IPC: F16K39/02
Filed: 1964-05-11
Abstract: 1,065,664. Valves. TOWLER BROS. (PATENTS) Ltd. May 11, 1964 [May 20, 1963], No. 19606/64. Heading F2V. [Also in Division G3] A pilot actuated relief valve comprises a valve member 26 which co-operates with a seat 28 to control relief of pressure from an inlet 1 to an outlet 2, inlet pressure acts on the lower face of the valve member 26 and on the upper face through an orifice 14 and passage 35. The area of the upper face is larger than the lower face so that the valve is normally closed. When the pressure rises above a predetermined value, the pilot valve 11 opens to allow relief of pressure through passage 4 and the passage in the valve seat 28 to the outlet 2 and the fall in pressure acting on the upper face causes the valve to open and allow relief of pressure through the radial passages R.
Patent GB-1394116-A (GB)
Title: Production of finely divided silicon dioxide
IPC: C01B33/18
Filed: 1972-04-27
Abstract: 1394116 Finely divided silicon dioxide DEUTSCHE GOLD - UND SILBER - SCHEIDEANSTALT 27 April 1972 [11 May 1971] 19618/72 Heading C1A Finely divided SiO 2  with a BET surface area of greater than 380 m.<SP>2</SP>/g. is prepared by reacting SiHCl 3  vapour with a mixture of O 2  or air together with an inflammable gas containing free hydrogen, e.g. H 2 , or combined hydrogen whose combustion is accompanied by the formation of water in a flame using N 2  as an inert carrier gas, wherein 410-565 g. SiHCl 3  per Nm.<SP>3</SP>/h. of total gas are used, the vol. ratio of SiHCl 3 /N 2  is 0À5 : 1 to 5 : 1 and the vol. ratio of H 2 /O 2  is 0À5 : 1 to 1À3 : 1. The SiO 2  product may have a BET surface area of 380-650 m.<SP>2</SP>/g., a particle size of 5-7 nm., a pH in a 5% by wt. aq. suspension of 3À4-4À4, an apparent density of 20-120 g./l., a bulking value of 1000-2000 ml./100 g. and a silanol group density of 80-85 Š<SP>2</SP>/SiOH.
Patent GB-200706-A (GB)
Title: Improvements in or relating to string bass instruments
IPC: G10D3/02
Filed: 1922-07-19
Abstract: 200,706. Edwards, H. July 19, 1922. Stringed instruments, holders and sound - magnifying attachments for.-A soundbox, preferably of sheet-metal for supporting a violincello or double-bass in use is rectangular in plan and' has feet C, preferably at each corner, and an abutment D, for the spike of the instrument, in the middle of the top face. Sound-holes may be made in the various faces, and internal struts may be provided, one of which under the abutment D mav extend downwards through the box to form another foot. The abutment D is U-shaped in plan with its floor sloping downwards and its sides sloping upwards from the opening.
Patent GB-536572-A (GB)
Title: Improvements in or relating to air raid shelters and similar structures
IPC: E04H9/10
Filed: 1940-07-04
Abstract: 536,572. Air-raid shelters. HARWOOD, H. July 4, 1940, No. 19899/39, [Class 20 (i)] An air-raid shelter is formed of pre-cast concrete sections joined together at their edges by bolts disposed longitudinally of the shelter, and each section comprising pre-cast arcuate concrete elements a joined together at their upper abutting edges by means of transverse dowel pins e in preformed apertures and a longitudinal rod d disposed in grooves in the edges. The joint is further grouted with cement or the like and the other joints may be rendered gas and waterproof.
Patent GB-440742-A (GB)
Title: Process of dyeing pelts, hairs and feathers
IPC: D06P3/30
Filed: 1934-07-06
Abstract: Aniline-black and like dyeing.--Pelts, hairs, and feathers are dyed by the oxidation thereon of a salt of 1 : 5-dioxynaphthalene with an aminodiphenylamine or a substitution product thereof containing an alkyl, oxyalkyl or alkyloxy group.  Such salts are obtainable by dissolving equimolecular proportions of the components in an organic solvent, such as methyl, ethyl, isopropyl or another aliphatic alcohol, acetone or benzene, and evaporating the solvent.  The following examples are specified: (1) An iron salt mordanted white rabbit skin is dyed, the hair a black-blue and the flesh side a full blue, by treatment for 3 hours in a bath at about 28 DEG  C. containing the salt from 1 : 5-dioxynaphthalene and 4-aminodiphenylamine and hydrogen peroxide.  (2) A skin is dyed directly a bluish bright brown in a bath at about 28 DEG  C. containing 2-chloro-1 : 4-diaminobenzene, the salt from 1 : 5-dioxynaphthalene and 4-aminodiphenylamine and hydrogen peroxide. The samples furnished under Sect. 2 (5) are of mordanted pelts dyed with the salts of 1 : 5-dioxynaphthalene with (1) 2-aminodiphenylamine (chromium mordant), (2) and (3) 4-methyl-3-aminodiphenylamine (chromium and copper mordants respectively), (4) 4-amino-4<1>-b -oxyethyldiphenylamine (copper mordant), (5) and (6) 4 - amino - 4<1> - methoxydiphenylamine (chromium and iron mordants respectively), (7) 4 - amino - 3<1> - methoxydiphenylamine (chromium mordant).  4 - Amino - 4<1> - b  - oxyethyldiphenylamine and 4-amino-3<1>-methoxydiphenylamine are obtained by condensing 1-chloro-4-nitrobenzene-2-sulphonic acid with 1-amino-4-b -oxyethylbenzene and 1-amino-3-methoxybenzene respectively, removing the sulphonic group by heating for 12 hours with 20 per cent sulphuric acid at 140 DEG  C. and reducing the nitro group.  The Specification as open to inspection under Sect. 91 comprises also the use of the salts from aminodiphenylamines substituted by cycloalkyl or aralkyl groups.  This subject-matter does not appear in the Specification as accepted.
Patent GB-313779-A (GB)
Title: Improvements in stentering machines
IPC: B65H23/028
Filed: 1928-07-09
Abstract: 313,779. Farmer Norton & Co., Ltd., Sir J., and Norton, D. G. July 9, 1928. Tentering. - The two chains of a tentering machine are driven by separate trains of gearing e, k, rand f, m v from the main shaft u, each train comprising means under brake control for retarding the speed. As shown, the pinions r, v are secured to frames t, w loose on the shaft u but compelled to rotate therewith by the normally stationary worm wheels x, y and worms z, 2. These worms are connected by bevel and spur gearing with brake drums 15, 16 also loose on the shaft u. If the free rotation of either drum 15, 16 is prevented the speed of the corresponding chain wheel a, b is reduced. Specification 261,675 is referred to.
Patent GB-576663-A (GB)
Title: Improvements in or relating to mining machines
IPC: E21C25/50
Filed: 1943-12-01
Abstract: 576,663. Mining-machines. LOGAN, W. A. Dec. 1, 1943, No. 20072. [Class 68 (i)] [Also in Group XXX] In a mining-machine in which an endless scraper conveyer for removing cuttings is fixed close behind the cutter chain of the mining- machine, the transverse plane of the jib of the scraper conveyer is inclined to the plane of the cut. As shown, the cutter chain jib 2 is supported by the gear head 1 to which is bolted a gear-box 5 with the jib 7 of the scraper conveyer attached thereto and supported by a wedge-shaped sole-plate 14. The conveyer comprises a chain 8 with scrapers 9 pivoted on horizontal pins 11, guide plates 12, 13 limiting and constraining the movement of the scrapers ; it may be driven through bevel gearing 17 and a chain 20 from a scraper conveyer 24 which removes cuttings from the vicinity of the drive sprocket of the cutter chain. Specification 545,718 is referred to.
Patent GB-202490-A (GB)
Title: Improvements in spring mattresses, applicable also to cushions for seats, or back, leg, or arm rests
IPC: A47C23/043
Filed: 1922-07-22
Abstract: 202,490. Rhodes, W. F. W., Rhodes, V. H., and Hardman, W. H. July 22, 1922. Spring surfaces, wherein all the springs are adapted to work together as one unit, are constructed by mounting vertically disposed helical springs upon rocker arms which are attached to interconnected spring-controlled rocker-shafts mounted in an underframe. As shown, a series of parallel rocker-shafts b are pivotally mounted in a frame a, and carry upwardly projecting arms c, which support springs e the upper coils of which form the spring surface. This surface is enclosed by an upper frame i connected to the springs by wires or links f, by means of which the top coils are also interconnected. On each rocker-shaft is a downwardly projecting arm cr arms g the ends of which are joined transversely by a connecting-rod h attached to the underframe by one or more springs i.
Patent GB-1178066-A (GB)
Title: A process for the preparation of Bis-(Hydroxymethyl)-Sulphide
IPC: C08F/
Filed: 1967-05-02
Abstract: 1,178,066. Bis-(hydroxymethyl) sulphide. SOC. NATIONALE DES PETROLES D'AQUITAINE. 2 May, 1967 [9 May, 1966], No. 20280/67. Heading C2C. A process for the production of bis-(hydroxymethyl) sulphide: HO.CH 2 .S.CH 2 .OH comprises supplying hydrogen sulphide to an aqueous solution of formaldehyde, which is agitated and cooled, in a controlled manner such that the hydrogen sulphide supplied does not exceed 0À5 mole per mole of formaldehyde present and the temperature does not exceed 75‹ C. at any point of the reaction mixture. The pH of the solution may be adjusted so that it is 7 at 0‹ C. and from 3 to 4 between 20‹ and 30‹ C.
Patent GB-1274962-A (GB)
Title: Wrapping method and apparatus
Inventor: GERLACH C J
IPC: B65B9/06
Filed: 1970-04-29
Abstract: 1,274,962. Wrapping machines. FMC CORP. 29 April, 1970 [30 April, 1969], No. 20504/70. Heading B8C. A wrapping machine forms a package P (Figs. 5, 6) by longitudinally folding the edge portions of a web W on to the central portion and sealing them thereto at 26 with their free edges confronting, and by tranversely sealing the web at 30 to form two individual compartments each containing an article A. The transverse seals 30 may also be crimped at 33 and the package may have a perforated tear line T for separating the two compartments. Article feed (Figs. 1, 9).-The articles A are fed to a web former F in two parallel rows L 1 , L 2  by pushers 36 mounted on endless chains 34, the articles being supported on dead plates 40 prior to entering the web former F. Web feed.-The web W is pulled from a supply roll R by two opposed belts 29 reheated downstream of the web former F, and passes over an anvil roller 22 with which a perforator wheel 24 co-operates to form the tear line T. After folding, the web passes between upper and lower heat sealing bars S which form the seals 26, and then passes between heat sealing bars 31 carried by endless chains H to form the transverse seals 30. After sealing the web passes through a rotary crimper J to a rotary cutter K which separates formed packages from the web W. These packages then pass on to a discharge conveyer M. Web former F (Figs. 3, 9 and 13).-This comprises a pair of web forming shoes 42, 44 mounted on a mounting block 45 and having lower portions 62, 64 which progressively curve further round the articles A. A pair of studs 48 having set collars 50 pass through the mounting block 45 and support a floating web forming block 46 which has a pair of grooves 52 which are aligned with grooves 54 on the undersurface of the mounting block 45. The web W is trained under the mounting block 25 with the side portions of the web guided by wings 58, 60 on the forming shoes 42, 44. Movement of the articles A and the web W through the former F causes the side portions of the web to be folded around the articles A until the web edges 25 lie within the forming shoes 42, 44 and are supported on overlapping ledges 72, 74. A presser plate 80 rides on the folded web 80 to keept it smooth.
Patent GB-796883-A (GB)
Title: Improvements in or relating to window seals closing apertures in metal bodies
Inventor: DYOTT RICHARD BURNABY
IPC: H01J17/04
Filed: 1955-07-15
Abstract: 796,883. Soldering and brazing. GENERAL ELECTRIC CO., Ltd. July 6, 1956 [July 15, 1955], No. 20624/55. Class 83 (4). [Also in Group XL (b)] In a window seal wherein a disc 3 of corundum having a metal coating 4 hermetically closes an aperture in a metal body 1, a metallic joint attaches the coating to the body. A cylindrical cup 1 of 43 per cent nickel 57 per cent iron alloy made by powder metallurgy has a shouldered circular aperture into which is fitted a coated disc of corundum, the surface of the cup having been cleaned by heating in wet hydrogen at 1000‹ C. and the parts adjacent the aperture where brazing is not required having been painted with alumina. The coating 4 is formed on the disc by preparing a paste from a powder of 160 grams of molybdenum powder and 40 grams of manganese powder by adding to 6 grams of the powder 12 cc. of a binder made by dissolving 1.5 grams of pyroxylin in ethyl lactate, painting the paste on the disc which has been degreased with carbon tetrachloride, baked and masked where metallizing is not required, drying the paste in hot air and heating in wet hydrogen at 1400 C. to sinter the powder to the disc. The layer is cleaned and flashed with an electrolytic deposit of nickel. With the disc in the aperture a ring 5 of brazing alloy 70 per cent copper, 30 per cent silver is placed on the disc and the assembly heated in hydrogen at 800‹ C. to effect brazing. It is stated that soldering or diffusion sealing may alternatively be used and that such a seal may be employed in a waveguide having sections containing gas at different pressures separated by an insulating window. The corundum may be formed by deposition and crystallization of fused alumina. Specification 796,884 is referred to.
Patent GB-1248400-A (GB)
Title: Improved thermal converters
Inventor: GAY FRANK MUNRO
IPC: G01R5/22
Filed: 1968-05-01
Abstract: 1,248,400. Thermal converter. A. C. COSSOR Ltd. April 23, 1969 [May 1, 1968], No. 20727/68. Heading G1U. A thermal converter comprises a housing containing a heater 5 and thermocouple 4 having a junction 3 adjacent the heater, a wire 6 being attached to the heater adjacent the thermocouple junction, the wire forming a thermal shunt to dissipate some of the heat produced by the heater, the shunt wire being composed of a material whose co-efficient of thermal conductivity is of opposite sign to the effective co-efficient of thermal conductivity of the combination of the material of the heater and the material of the thermocouple. The shunt compensates for deviation from a true square law between the current passed through the heater and the voltage output from the thermocouple. The main source of error is the temperature variation of the thermal conductivity of the heater and thermocouple materials. In this converter, the combination of heater and thermocouple has a positive such temperature variation, while the material of the shunt wire has a negative temperature variation. It may be made from nickel, iron or copper, the dimensions being critical. The heater wire has substantially zero temperature co-efficient of resistivity.
Patent GB-483124-A (GB)
Title: Improvements in binoculars
IPC: G02B23/00
Filed: 1937-07-28
Abstract: 483,124. Binoculars. GOWLLAND, E. July 28, 1937, No. 20907. [Class 97 (i)] In binoculars in which the light rays are subjected to multiple reflections between the objectives and eyepieces, the prisms usually employed as reflectors are replaced by metallic reflecting surfaces on which the rays are directly incident. The reflectors may be prepared by known methods such as chemical deposition, cathodic sputtering, thermal evaporation &c. or they may be made of solid metal or alloy. Aluminium either alone or alloyed with other metals is preferably used.
Patent GB-670744-A (GB)
Title: Improvements relating to luggage carriers for vehicles
IPC: B60R9/058
Filed: 1949-08-11
Abstract: 670,744. Luggage racks for motor vehicles. PARR. B. A. July 27, 1950 [Aug. 11, 1949], No. 20922/49. Class 103(ii) A luggage rack for the roofs of motor vehicles wherein the width of the rack may be adjusted to suit vehicles of different widths, comprises longitudinally disposed side members 11 of which each lower element 17 has transversely disposed stub members 15 of tubular section welded thereto. Central tubular elements 12 each fit over a pair of aligned stub members 15 and are secured thereto by bolted attachments which slidably engage in slots formed in each member 15 so that the width of the carrier may be adjusted. Each fastening member consists of an arm 24 hooked at its lower end to engage a roof drip channel and threader at its upper end to carry a knurled collar 27 formed with annular grooves which engage a clip 31 fitted over an appropriate rail 17.