baber/WOPTO huggingface dataset:
Patent GB-575717-A (GB)
Title: Improvements in reducing and grinding mills
IPC: B02C7/08
Filed: 1944-03-31
Abstract: 575,717. Disc mills. DOTZER, A. H. March 31,1944, No. 5992. [Class 59] In a disc mill, particularly for grinding cocoa nibs, comprising a middle horizontal rotatable stone supported at a fixed level and upper and lower horizontal non-rotatable stones adjustable towards and from the middle stone, the adjusting means consist of hydraulic jacks 100, 110 supporting the lower and upper stones respectively and connected in a hydraulic system in which a pressure higher than the grinding pressure is maintained, the system having a control valve 152 operable to apply the pressure medium to the jacks to move the stones and pressure relief valves 157, 157a for determining the effective grinding pressure. As shown in Figs. 1 and 9, the grinding surfaces 201 of the middle stone, which is mounted on a shaft 22 and rotated by gearing 31, 55, are formed by segmental blocks 37, 37b set in cement around annular breaker plates 34, 34b, levelling screws being provided to enable the segments to be brought to a common level flush with the surfaces of the breaker plates prior to the setting of the cement. The breaker plates co-operate with similar plates 66, 80 forming parts of the lower and upper stones, the grinding surfaces of which are also formed of segmental blocks 71, 78. The material to be ground is fed from hoppers 89, 89<1> to shoots 90, 90<1> which deliver to the upper ends of sleeves 85, 87 through which the material passes to the two grinding zones, the ground product being discharged circumferentially into an annular trough 70 around which it is carried by paddles 91<1> to a discharge shoot 73. During shut-down periods, the upper stone is raised by the jacks 110 and held in the inoperative position by hooks 94 which automatically engage with pins 95 as the stone rises and may be released to allow the stone to be lowered by energizing solenoids 97. The hydraulic system is shown in Fig. 11 and comprises a motordriven pump 118 which supplies liquid medium from a tank 120 to a relief valve 150 set to give a desired maximum pressure, the medium passing from this valve to the control valve 152 which has connections 153, 154 to the upper and lower ends of the cylinders 110 and the lower ends of the cylinders 100 and is fitted with a control lever 152a which may be set to a closed position p or either of the operative positions p<1>, p<2>. In operation, with the relief valves 157, 157a set for the desired grinding pressure, the lever 152a is moved to position p<1>, the valve 152 directing the medium through line 154 to the lower chambers of cylinders 110 to raise their pistons and so lift the upper stone to relieve the load on the hooks 94 which are then released. On moving the lever 152a to position p<2>, the valve 152 passes the medium to the upper chambers of cylinders 110 and the lower chambers of cylinders 100 to effect movement of the upper and lower stones to positions giving the desired grinding pressures. Gauges g<1>, g<2> are connected to the valves 157, 157a to indicate the prevailing pressures.
Patent GB-119004-A (GB)
Title: Improved Means for Adjusting and Indicating the Travel of Machines or Instruments Operated by the Core or Armature of an Electro Magnet.
Inventor: VILLIERS EDWARD CECIL
IPC: G01P3/42
Filed: 1918-04-08
Abstract: 119,004. Villiers, E. C. April 8, 1918 Solenoids.-The plunger of a solenoid reciprocates between stops, one of which is adjustable and provided with means whereby the travel of the plunger can be regulated and its length indicated. The plunger A is drawn by the solenoid D against a stop B, and retracted by a spring N, which causes it to strike against a stop C. The stop C is formed as a screwed cap which can be rotated on a screwed sleeve J and secured by a lock-nut K. On the stop C is formed a pinion Q which drives a disk with a graduated rim P through the gearing shown.
Patent GB-1187721-A (GB)
Title: Exhaust Gas Purifier
Inventor: STOKES RUFUS
IPC: B01D47/02
Filed: 1968-02-07
Abstract: 1,187,721. Gas-scrubber. R. S. ENG. CO., Inc. 7 Feb., 1968, No. 6017/68. Heading B1R. A gas-scrubber comprises an inlet 10 for the gas to be scrubbed discharging into a vessel 12 partly filled with liquid and surrounded at its lower end by a vessel 16 also containing liquid, a plurality of pumps 15 withdrawing via pipes 13 and 14 a mixture of gas and liquid from vessel 12 and liquid from vessel 16 and discharging the resulting gas/liquid mixture via pipes 19 with the upper portion of vessel 12, pipes 23 connecting the upper portion of vessel 12 with the vessel 16, pipes 26 connected to pumps 27 withdrawing gas from vessel 12 and supplying to a vessel 29 containing liquid and divided into a series of compartments through which the gas passes to a pipe-manifold 34, and a further vessel 35 containing liquid through which the gas finally bubbles before leaving by an outlet 36.
Patent GB-1361966-A (GB)
Title: Process for reducing friction loss using a shear degradation  resistant liquid composition
IPC: F17D1/16
Filed: 1973-02-07
Abstract: 1361966 Wells &c CONTINENTAL OIL CO 7 Feb 1973 6049/73 Heading E1F [Also in Divisions Fl and F2] A method of reducing the fluid friction loss in pumping a liquid through a conduit includes dispersing in the liquid a friction-reducing agent at least a portion of which is in particulate form having a size of 5-300 U.S. standard sieve mesh. Thus the friction-reducing agent dissolves during the transmission of the liquid and the loss of friction-reducing properties which occurs due to shear forces when already dissolved additives pass through pumps is avoided. The method may be used in hydraulically fracturing an earth formation by pumping fluid, which may contain an inert substance such as sand, down a well, or for transporting solids such as coal or are suspended in a liquid. Examples of suitable additives for oil-based or aqueous liquids are given.
Patent GB-1141154-A (GB)
Title: Improvements in or relating to circlip pliers
IPC: B25B27/20
Filed: 1966-02-11
Abstract: 1,141,154. Circlip pliers. DEGUY-CONGE & CIE. 11 Feb., 1966 [17 Feb., 1965], No. 6084/66. Heading B4W. Circlip pliers comprise two branch members 3a and 3b with grip portions and nose pieces 8a and 8b the branches being pivoted at 5a and 5b respectively to a central plate 7; jaw members la, 1b are also connected to the plate 7 and at their upper end portions 4a and 4b shroud the back and side regions of the nose pieces so that squeezing of the grip portions causes opening of the nose pieces, the extent of their opening being limited to the spacing of the jaws. The spacing of the jaws may be adjusted by longitudinal movement of the plate 7, the plate being clamped by tightening screws 2, 5a and 5b. The jaws may be provided with slots in the plane of opening of the nose pieces to accommodate lobeless circlips, see Fig. 8 (not shown).
Patent GB-121561-A (GB)
Title: New Process for the Generation of Electrical Energy.
Inventor: BENITEZ CARLOS
IPC: H02J7/02
Filed: 1918-04-10
Abstract: 121,561. Benitez, C. April 10, 1918. Systems of charging and discharging galvanic batteries.-In an electric supply system comprising two sets of galvanic batteries, one set discharges to perform useful work and to charge the other set by means of an oscillatory circuit and a set of rectifiers. The battery connexions are varied by a commutator operated by solenoids, the circuits of which are controlled by a clock. In the position shown in Fig. 1 the commutator 5, mounted on a shaft 6, establishes the following discharging circuit for the battery 1-2-positive pole of battery, ammeter 22, lead 21, terminal 17, Figs. 1 and 2, segment 14, terminal 18, lead 26, motor 27, 28, lead 30, load 40, terminal 39, brushes and segment 9 of commutator 5, terminal 77 to negative pole of battery 1-2. The motor 27, 28 drives an alternator 42 connected to the terminals 44, 45 of the primary winding of a transformer. The terminals 46, 47 of the secondarv winding of the transformer are connected to a condenser 48 forming with an inductance 55 and an arc 51, 52 an oscillatory circuit, which operates as a source of energy to charge the battery 3-4 through rectifying valves 33, 34, 35, and 36 and the following circuit, lead 32, terminal 19, Figs. 1 and 2, segment 15, terminal 20, ammeter 24, battery 3-4, brushes and connexion 10 of commutator, and lead 37. After a pre-determined time, the commutator 5 is operated to place the battery 3-4 on discharge through the load 41 and motor 27, 28, and to place the battery 1-2 on charge from the oscillating circuit. The commutator 5 is operated by a handle or electro-magnetically by one of two solenoids 62, 63, the circuits of which are controlled by a clock 67. The minute hand of the clock is adapted to engage contacts 68, 69, and the hour hand is adapted to engage twelve studs 70. Six of the studs 70 are placed upon a metal disk 72, Fig. 4, provided with six holes through which the six other studs 70 on the disk 71, Fig. 3, pass. The disks 71 and 72 are connected respectively to solenoids 62, 63, Fig. 1, by leads 74, 75. In the position shown, the solenoid 62 is energized from one-half the battery 3-4; while one hour later the solenoid 63 is energized from one-half the battery 1-2 to change the position of the commutator. Specification 14311/15, which describes a battery charging and discharging system, is referred to.
Patent GB-612603-A (GB)
Title: Evaporating calcium chloride solutions
Inventor: SOLVAY CIE
IPC: C01D1/42
Filed: 1946-03-25
Abstract: Solid hydrated calcium chloride is obtained from aqueous calcium chloride solutions containing between 60 and 75 per cent Ca Cl2 by exposing the solution at a temperature above 120 DEG  C. and with a surface area exceeding 10 and preferably 100 square metres per ton to a gas or vapour, in which the partial water vapour pressure is kept below atmospheric pressure and preferably below 400 mm., under adiabatic conditions or under such thermal conditions that not more than 30 ton calories are gained by the system, or not more than 15 ton calories are lost, per ton of product.  The ideal process, which is both adiabatic and isothermal, is represented by the use of 72 per cent calcium chloride solution at 170 DEG  to 175 DEG  C. and is an auto-evaporative-crystallisation process giving solid calcium chloride dihydrate.  In an example, a 70 per cent Ca Cl2 solution at 175 DEG  C. is sprayed down a vertical empty tower, 15 feet high, in which the pressure is maintained at 5 lbs. per square inch.  A granular product containing 76 per cent Ca Cl2, having a bulk density of 0.4 to 0.5 grams per cc. is obtained.  In a modification, a 70 per cent Ca Cl2 solution at 170 DEG  is sprayed down a tower up which air at 180 DEG  C. is blown. Film evaporation may also be used, employing (a) a heat-insulated ribbon mixer in which the solution is evaporated on the surface of granular calcium chloride in a current of air; or (b) a horizontal drum rotating partly in a bath of 72 per cent Ca Cl2 at 175 DEG  C. and partly in the atmosphere.
Patent GB-288252-A (GB)
Title: Coal washing apparatus
IPC: B03B5/24
Filed: 1928-02-29
Abstract: 288,252. Coppee et Cie, E. April 5, 1927, [Convention date]. Jigs. - A jig for treating coal comprises a compartment 2 in which the heaviest impurities are discharged under and over baffles 5, 6, and a compartment 4 in which the lighter portion is again treated on a felspar bed 8 on a screen 9 through which remaining heavy constituents pass.
Patent GB-908469-A (GB)
Title: Improvements relating to the production of electrical energy from atomic nuclear reactions
Inventor: SIEBKER MANFRED
IPC: G21D7/00
Filed: 1958-02-28
Abstract: 908,469. Nuclear reactors. SIEBKER, M. Feb. 28, 1959 [Feb. 28, 1958], No. 6619/58. Class 39 (4). A method of producing electrical energy from nuclear reactions is characterized in that heat released in a fission or fusion reactor is used for the thermal dissociation of a working medium (for example steam or carbon dioxide) circulating through the reactor, the dissociated constituents are separated from one another, for example by selective diffusion, and the chemical energy thus obtained is converted to electrical energy in a fuel cell. In Fig. 1 the recombination water leaving a group I of low temperature hydrogen-oxygen cells flows through a relief valve 44 into a line in which it mixes with a water-steam mixture and passes into an evaporator 5<SP>1</SP> which absorbs heat from the outer surface of the reactor core 5 of a High Temperature Reactor; from the evaporator the steam passes through heat exchanger 4, which acts as a superheater, and then into the reactor core 5 where it is heated to 1600‹ C., at which temperature some of the steam is dissociated. The hydrogen evolved passes into permeable tubes 6 and then to a cooled header 7, a cooler 18, a compressor 19, and then into the fuel cells 1. The oxygen flows with the steam through heat exchangers 4 and 8 to steam transformers 40 where the oxygen is separated and passes through a cooler 41 and compresses 42 to the fuel cells 1. The condensate from steam transformers 40 is con - veyed by a pump 43 to the heating surface of a pre-evaporator 1<SP>1</SP> heated by the waste heat of the fuel cell. The secondary steam produced in heat exchanger 8 passes in a separate circuit through turbine 9, condenser 10 and feed pump 11. A similar circuit may be adapted for use with fuel cells of the low pressure high temperature type, Fig. 2 (not shown).
Patent GB-596917-A (GB)
Title: Improvements in automatic liquid level indicators
IPC: G01F23/16
Filed: 1945-03-16
Abstract: 596,917. Liquid - level pressure gauges. PALACIO, R. C. DE. March 16, 1945, No. 6691. Convention date, March 10, 1944. [Class 106 (ii)] A gauge for indicating the liquid level in a container 5 is of the mercury manometer type having one or more additional limbs 9 which are used for calibration or adjusting purposes, the limb 2, which is graduated or co-operates with a scale 4, having an extended tube 3 of smaller bore in which is a coloured liquid of lower specific gravity than the mercury. To enable the gauge to be used with containers of varying capacities the limb 9 may be compressed or enlarged to vary the initial level of the mercury, or rods or telescopic tubes 10 may be inserted into the mercury in the limb these means may be used also to adjust the initial liquid level in the tube 3 to the zero marking on the scale 4. The limb 1 has an extension tube 6 passing down to the bottom of the container 5 where it is provided with an enlargement 6<11> over which is fitted a sensitive diaphragm. The tube 6 is protected in the container 5 by a covering 6<1> of heatinsulating material. Where the pressure of air &c. in the container 5 is different from that of the atmosphere, an additional tube connects the ends of the tube 3 and limb 9 to the upper part of the container 5.
Patent GB-702734-A (GB)
Title: Improvements in and relating to ice trays
IPC: F25C1/24
Filed: 1953-03-11
Abstract: 702,734. Ice-trays. GENERAL ELECTRIC CO. March 11, 1953 [March 14, 1952], No. 6710/53. Class 29 The central divider of a grid structure for ice trays comprises a pair of oppositely pointing wedges 7, 8 movable to increase the surface engagement between the wedges and thus exert lateral forces to release the ice blocks from the compartments 13. The upper wedge 7 has spaced slots 9 in its upper edge, and the lower wedge 8 has corresponding slots 10 in its lower edge, and transverse dividers 11 have elongated central apertures 12 through which the wedges extend, the dividers engaging the slots 10, 11. Two levers 14 straddle the ends of the lower wedge 8 and are pivoted thereto by pins 16, the levers carrying pins 19 engaging inclined slots 18 in each end of the upper wedge 7. During freezing the levers 14 rest on the portions 20 of the dividers as shown in full lines, maintaining the upper verge 7 in its raised position. To remove a frozen block the levers 14 are raised to the dotted line position pivoting about the pins 16 and forcing the upper wedge downwardly to cause lateral . displacement of the ice blocks. The side walls 4 of the tray are flexible and slightly inclined outwardly to force the ice blocks upwardly.
Patent GB-307036-A (GB)
Title: Improvements in or relating to devices for tensioning tools in filing, sawing and like machine tools
IPC: B23D67/00
Filed: 1929-03-01
Abstract: 307,036. Thiel Ges., Geb. March 1, 1928, [Convention date]. Filing-machines, reciprocating. - The file is tensioned through yielding means set to prevent a predetermined tension from being exceeded. The tension is applied by a bolt g and nut i rotated by a conical or other friction surface k engaged by a hand ring m adjustably spring loaded.
Patent GB-1196573-A (GB)
Title: Thixotropic, Unsaponifiable Paints
Inventor: NEUMANN WOLFRAM
IPC: C08G18/32
Filed: 1968-02-12
Abstract: 1,196,573. Thixotropic paints. FARBENFABRIKEN BAYER A.G. 12 Feb., 1968 [13 Feb., 1967], No. 6771/68. Headings C3P, C3Q and C3R. A thixotropic paint comprises an unsaponifiable binder in solution in an organic solvent and 1 to 30% by weight, based on the weight of binder, of a thixotropic polyurethane prepared from diisocyanates and diols. Suitable binders are chlorinated and cyclized rubber, acrylonitrile - butadiene - styrene copolymer and chlorinated polypropylene. The compositions contain conventional plasticizers, pigments &c. Thixotropic polyurethanes are made by reacting 1,3,5 - triisopropyl benzene diisocyanate with octadecane diol-(1,12), 2-ethyl hexane diol-(1,3), or octadecene-9,10-diol-(1,12) in solution in a plasticizer such as chlorinated diphenyl and/or a conventional solvent.
Patent GB-817146-A (GB)
Title: Improvements in process and apparatus for the detection of escaping gases
IPC: F17D5/00
Filed: 1957-03-01
Abstract: An apparatus for detecting the presence of a gas which will produce with another substance a visible gas, cloud or smoke, e.g. halogen compounds used as refrigerants, and reacting with ammonia, comprises a chamber for catalytic decomposition of the gas; a reaction chamber for association of the decomposed gas with the smoke-producing substance and a vision chamber.  The vision chamber is constructed so that gas may be drawn into the decomposition chamber by means of a reduction <PICT:0817146/III/1> of pressure in the vision chamber.  A mixture of gas to be tested and air are drawn in through orifice 6a, which may have an extension piece, which is not shown, for detection in narrow spaces, and the gas is decomposed by means of the heated platinum wire 1 the halogen formed is drawn through orifice 11a and reacts with the pad containing ammonium compounds poured in through stoppered hole 9 and smoke is viewed in the vision chamber 14 by means of the light from the electric torch bulb 18.  The catalytic wire may also be heated by means of the electric torch 19 through terminals 22.  The reduction in pressure is achieved by means of a bulb attached to the nipple 15, and the gases may be drawn into vision chamber 14 and expelled from the apparatus by means of pressure on a rubber bulb.
Patent GB-1303845-A (GB)
IPC: G03G9/113
Filed: 1970-02-12
Abstract: 1303845 Cleaning iron powder; electroless plating EASTMAN KODAK CO 12 Feb 1970 [17 Feb 1969] 6843/70 Headings C7E and C7F [Also in Division G2] A magnetic carrier is produced by treating iron powder (e.g. 40-1200 microns) with an aqueous mineral or organic acid(e.g. HNO 3 , HCl, H 2 SO 4  acetic or trichloroacetic acid), freeing from residual acid, and drying. Residual acid may be removed by rinsing with water containing an antioxidant (e.g. hydrazine sulphate or sodium nitrite.) Residual water may be removed with a water-  miscible solvent. Drying may be effected in air or an oxygen-free atmosphere. The powder may then be coated with nickel. Alternatively, moist iron powder which has been rinsed with water free from antioxidant may be dried at 40-80‹C in an oxygen-containing atmosphere to produce an oxide layer, whereafter the powder is coated with a film-forming resin. An electroless Ni plating bath comprises nickel chloride, sodium citrate, ammonium chloride, ammonia and sodium hypophosphate.
Patent GB-1531642-A (GB)
Title: Toy train and trackway
IPC: A63H17/00
Filed: 1977-02-18
Abstract: 1531642 Toy train TOMY KOGYO CO INC 18 Feb 1977 [18 June 1976] 06844/77 Heading A6S A toy train and tracking comprise a trackway provided with a section 14 having a base 76 and upstanding sidewalls 78, 80, supporting surfaces on said side walls including portions 82 that are parallel to the base and portions 82' that slope downwardly towards the base; a powered vehicle 44 with wheels 50, 52 that move along the trackway and the base 76 and flanges 74 extending outwardly from said vehicle; and a plurality of covers [66], 68, 70 for the vehicle, each of the covers being provided with flanges 72 extending outwardly therefrom for engaging the supporting surfaces 82, 82' and the flanges 74. The distance between the base 76 and the surfaces 82 is greater than the distance between the bottoms of the wheels 50, 52 and the flanges 72 so that the vehicle may travel beneath covers situated on the surfaces 82 but will engage the cover situated on the surfaces 82' and carry it around the trackway.
Patent GB-795991-A (GB)
Title: Improvements in plastic pipe
Filed: 1956-03-05
Abstract: Compositions suitable for making a tape for use in the production of pipes (see Group XXVIII) comprise (a) partially polymerized bisphenol-epichlorohydrin of molecular weight about 830, which may contain a polymerization catalyst such as boron trifluoride-monoethylamine, -piperidine, or -triethanolamine complexes, a polymer such as polyvinyl or polyvinylidene chloride, polyvinyl butyral or a vinyl chloride-vinyl acetate copolymer, and optionally a plasticiser such as dioctyl phthalate, tricresyl phosphate or linseed oil and a monomer such as diallyl phthalate, (b) partially polymerized diethylene glycol-epibromhydrin, polyvinyl chloride and dioctyl phthalate, (c) a low molecular weight polyester of sebacic acid and diethylene glycol, polyvinylidene chloride and dioctyl phthalate, with or without linseed oil, (d) partially polymerized trimethylene glycolepichlorohydrin, borontrifluoride - triethanolamine, vinyl chloride-vinyl acetate copolymer and diallyl phthalate, and (e) vinyl chloridevinyl acetate copolymer, dioctyl phthalate and phthalic anhydride or diallyl phthalate.
Patent GB-1376849-A (GB)
Title: Game apparatus
IPC: A63F3/00
Filed: 1973-02-13
Abstract: 1376849 Tethered ball game AURORA PRODUCTS CORP 13 Feb 1973 [22 Feb 1972] 6877/73 Heading A6H A tethered ball game apparatus comprises a vertical frame 17 a plurality of polyhedra, e.g. cubes C having each on at least one face an indicium and each of a size to fit into the frame 17 and a tethered ball 46 on a post 52 with a pivoting support 56 for the tether 48. The height of the ball 46 is adjustable. A game of "noughts and crosses" may be played by dislodging the cubes C from the frame 17 with the ball 46. The polyhedra may be dodecahedra and the frame may be shaped to contain the dodecahedra. The apparatus may be used as a letter selector for a word-building game or a number selector for a bingo game.