baber/WOPTO huggingface dataset:
Patent GB-1459732-A (GB)
Title: Electrochemical cell
IPC: H01M12/04
Filed: 1975-04-17
Abstract: 1459732 Aqueous electrolyte cells LOCKHEED MISSILES & SPACE CO Inc 17 April 1975 [15 May 1974] 15894/75 Heading H1B An aqueous electrolyte cell comprises a casing 2, an anode 1 which naturally forms on its surface an insulating film in the presence of water, a cathode 6 in contact with a portion 7 of the film, means preventing the electrolyte from contacting any portion of the anode other than its reactive surface portion, and a flexible connector 10 which maintains the cathode in contact with the film portion 7 as the anode is consumed. The anode is made of Na, Li or alloys or compounds of these metals and forms on its surface the film 3, 7, the close fixing of the anode in the casing 2 preventing the electrolyte 8 contacting the sides of the anode. The cathode 6 comprises an iron or nickel screen 6 and the electrolyte in a solution of an alkali metal hydroxide in water to which antifreeze such as ethylene glycol may be added. The electrolyte is supplied via an inlet 11 and overflows from an outlet 12. A current collector 4 is provided in the anode. In a modification the electrolyte is prevented from reaching the sides of the anode by rubber seals between the anode and the casing. Several cells may be connected to form a battery and the electrolyte is circulated through the battery via a heat exchanger to cool the electrolyte. The portion 3 of the film may alternatively be a bonding agent such as epoxy cement.
Patent GB-355670-A (GB)
Title: Improvements in or relating to thermionic valve circuits
IPC: H03F1/13
Filed: 1930-05-23
Abstract: 355,670. Valve circuits. MARCONI'S WIRELESS TELEGRAPH CO., Ltd., Alarconi House, Strand, and GREEN, E., 24, Church Road, Hendon, both in London. May 23, 1930, No. 15935. [Class 40 (v).] In a circuit comprising a plurality of valves 1 .. 4 in parallel, in which parasitic oscillations due to the transfer of energy through the grid-anode self-capacities of the valves is reduced by a low-reactance path L1<SP>11>.. L2<SP>111 >for the desired oscillations with a high reactance to the parasitic oscillations, the path is shunted by a damping resistance r<11>, r<111> connected between points which are at substantially the same potential as regards the main oscillations but at different potentials as regards the parasitic oscillations, in order to avoid damping the main oscillations. The inductances L1<SP>11> .. L2<SP>111>, which may be closely coupled, are connected in the grid circuits of the valves, and the damping resistance r<11>, r<111> is connected between the grids of the valves. Particularly if the inductances are not closely coupled, the effect of the reactance opposed to the main oscillation by the inductances is compensated by a circuit Cg, Lg, rg. Devices L1 .. L<1>2, r, r1 to suppress parasitic oscillations are inserted in the output circuits in addition to, or in place of those in the input circuits. According to a modification, two sets of four valves in parallel are arranged in push-pull, Fig. 7 (not shown).
Patent GB-640269-A (GB)
Title: Respiratory devices
IPC: A62B9/02
Filed: 1947-06-17
Abstract: 640,269. Respiratory appliances. BENDIX AVIATION CORPORATION. June 17, 1947, No. 15997. Convention date, June 18, 1946. [Class 81(ii)] [Also in Group XXIX] An oxygen demand regulator for a respirator, having a respiratory-responsive diaphragm controlling the demand valve thereof, is characterized by the provision of resilient means adapted to come into contact with the said diaphragm and setting means operatively connected therewith and operable progressively to adjust the resilient means to apply an increasing positive pressure on the diaphragm, whereby the demand valve is operated to increase the oxygen pressure delivered by the regulator as the positive pressure on the diaphragm is increased. As shown in Fig. 2 an oxygen regulator has an inlet 14 and an outlet 16 leading to a mask (not shown) and is provided with a respiratory-responsive diaphragm 30 which actuates a lever 24 pivoted at 25 and controlling the demand valve 22 of the regulator. On the regulator is mounted a control 10 provided with a rotatable knob 67 in which rides a spider 58 having lugs 59 which engage threads 69 formed on the interior of the knob. A central opening in the spider receives a cylindrical cup-shaped member 75 within which is disposed a spring 77: a further spring 78 is fixed to the underside of the spider. Rotation of the knob 67 in a clockwise direction will produce a downward movement of the spider 58, causing the member 75 to press upon the diaphragm and increasing the amount of oxygen delivered through the valve 22. Further rotation of the knob 67 causes spring 78 also to act on the diaphragm, increasing the oxygen supply still further. Maximum rotation of knob 67 provides at the mask an oxygen pressure of approximately 12 inches of water at an altitude of 45,000 feet. The knob is provided with a marked dial 71 which is read in conjunction with an index on the shoulder 53 of the control. In a modification the cupshaped member 75 and spring 77 are omitted. Specification 582,141 is referred to.
Patent GB-168186-A (GB)
Title: Improved clearing ring for fishing tackle
IPC: A01K97/24
Filed: 1920-06-14
Abstract: 168,186. Pharez, F. June 14, 1920. Clearing-appliances.-A jointed clearing-ring consists of two members A, B, shaped to form jaws to grip a fouled line, and two links C, D attached to a cord. A spring F and a stop-pin G are loosely held in position by a member E, which prevents the members A, B from opening too wide. To clear a fouled line, the clearing- ring is opened and allowed to slide down the fishing-line as near as possible to the hook. On pulling the cord, the line is released, without straining the fishing rod or line.
Patent GB-993744-A (GB)
Title: Fuel oil compositions
Inventor: EBNER HERMAN GEORGE
IPC: C10L1/16
Filed: 1962-04-26
Abstract: A copolymer of ethylene and propylene is made by reacting the two monomers together in the presence of a Ziegler-type catalyst. The product is said to have a branch index (defined as the total number of non-terminal methyl groups per 100 carbon atoms in the polymer) of 16-19.  In a preparation the catalyst used consists of tetraphenyl tin, AlCl3 and VCl4.ALSO:A fuel oil composition comprises a major amount of a distillate fuel oil and at least 0.001% of an oil-soluble non-cross-linked low-density hydrocarbon polyolefin derived from monomers having not more than 6 carbon atoms and having an intrinsic viscosity in the range 0.08-0.15 dl/g., and having a branch index of at least 6. The branch index is defined as the number of non-terminal methyl groups per 100 carbon atoms in the polymer.  Fuel oils mentioned include diesel fuel, jet fuel, residual fuel, furnace oil, heater oil, kerosene, and gas oil, and mixtures thereof. Polymers mentioned are polyethylene and ethylene-propylene copolymers. The polymer may be added to the fuel as a concentrate in a suitable solvent, e.g. naphtha, mineral spirits, heater oil, benzene, toluene, xylene, pentane, hexane, or isopropyl alcohol.
Patent GB-1270124-A (GB)
Title: Apparatus for the relative positioning of two objects by means of a beam of visible radiation
IPC: B63H25/46
Filed: 1969-03-27
Abstract: 1,270,124. Optical positioning apparatus. PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd. March 27, 1969 [March 30, 1968], No. 16046/69. Heading G2J. Positioning apparatus comprises two objects on each of which is provided a pattern of concentric equidistant circles which intercept a beam of radiation, the pitch of one pattern being different from the pitch of the other whereby a Moire fringe pattern is produced, the patterns nearly engaging one another. If desired one of the patterns may comprise more than one group of equidistant concentric circles. The spacing between the circles is preferably half of the pitch of the respective pattern. One or both of the patterns, may be marked, e.g. by one of the circles being replaced by a circle which transmits the radiation. Preferably both patterns comprise 200 circles, the width of each circle in one pattern being 40 Ám and in the other 39À6 Ám. The apparatus may be used in the production of the mask for colour television tubes or in machine tool positioning. Reference has been directed by the Comptroller to Specification 1, 174, 781.
Patent GB-183431-A (GB)
Title: Improvements in or relating to telephone systems
IPC: H04Q3/00
Filed: 1922-06-09
Abstract: 183,431. Automatic Telephone Manufacturing Co., Ltd., (Assignees of Bellamy, J. I.). July 22, 1921, [Convention date]. Addition to 165,782. Drawings to Specification. Slow-release relays.-The usual release relay of an automatic telephone selector of the type described in Specification 202,308 is provided with two windings, one of which is short-circuited during the passage of selecting impulses in order to increase the sluggishness.
Patent GB-550765-A (GB)
Title: Improvements relating to the sealing of closure members for openings in vessels
IPC: F16J15/10
Filed: 1941-12-13
Abstract: 550,765. Airtight seals for vessel closures. HENLEY'S TELEGRAPH WORKS, CO., Ltd., W. T., and MARLOW, J. E. Dec. 13, 1941, No. 16107. [Classes 21 and 125 (iii))] A vessel 1, e.g. a metal sleeve for housing an electric cable joint, having an aperture 2 carrying a bush 3 provided with a screw plug 7, the closure rendered airtight by a tinned copper &c. cover 13 engaging in a channel 12 where it is secured by solidified metal, e.g. solder.
Patent GB-893952-A (GB)
Title: Improvements relating to internal combustion engines
Inventor: EHRLICH JOSEF
IPC: F02B25/00
Filed: 1957-05-21
Abstract: 893,952. Charging two-stroke engines. DE HAVILLAND ENGINE CO. Ltd. May 21, 1958 [May 21, 1957], No. 16114/57. Class 7(2). To assist the action of a charging or scavenging device as described to help induction of air or combustible mixture into a crankcase compression space (not shown), subatmospheric pressure momentarily occuring in an exhaust duct 15 is transmitted via a rotary valve 17 and a duct 19 to the space when it and its transfer ducts 14 are sealed off by the engine piston from the cylinder 11 and before its inlet ports are opened by the engine piston. Particularly in a diesel engine, the valve 17 and duct 19 are replaced by a one-way valve, reservoir and rotary valve in series or by a reservoir alone. Instead of a crankcase compression space, the working chamber of a piston scavenging pump or the delivery space of a scavenging pump or blower may be acted on in the manner of the invention.
Patent GB-716876-A (GB)
Title: Manufacture of carbazole
Filed: 1951-07-06
Abstract: In a process for the manufacture of carbazole by heating ortho-amino-diphenyl with an organic nitro compound, the ring closure is carried out in the vapour phase at a temperature ranging from 450 DEG  to 550 DEG  C. in the presence of a dehydrogenation catalyst. The process may be carried out continuously.  Organic nitro compounds mentioned include nitrobenzenes, dinitrobenzenes and o-nitrodiphenyl. The nitro compound may be introduced into the reaction zone together with the o-amino-diphenyl or it may be introduced continuously and simultaneously at different places along the path of travel of the reactants through the reaction zone.  Dehydrogenation catalysts mentioned include vanadium pentoxide, molybdenum trioxide, manganese dioxide, cupric oxide, copper chromite and mixtures of magnesium oxide and cupric oxide. The catalysts may be regenerated by heating in air and the reaction components may be diluted with an inert gas, e.g. nitrogen and carbon dioxide.  In examples: Carbazole is obtained by passing a mixture of o-aminodiphenyl and o-nitrodiphenyl over a mixture of cupric oxide and magnesium oxide in an aluminium tube at elevated temperature (1); in a similar process part of the o-nitrodiphenyl is introduced at the same inlet as the o-aminodiphenyl and the rest at two other inlets along the reactor (2); and nitrobenzene is used instead of o-nitrodiphenyl in a process otherwise similar to that of example (1) (3).
Patent GB-945893-A (GB)
Title: Production of phenylalanine derivatives
IPC: C07C/
Filed: 1961-05-04
Abstract: Compounds of the general formula: <FORM:0945893/C2/1> (wherein R represents a straight chain C1-5 alkyl radical) are prepared by hydrolysing compounds of the general formula: <FORM:0945893/C2/2> in an aqueous hydrobromic acid solution containing about 35-55% by weight of HBr at a temperature in the range from about 90 DEG C. to reflux temperature, and neutralizing the resulting product. Specifications 936,074 and 945,892 are referred to.
Patent GB-476579-A (GB)
Title: Improvements in drinking cups
IPC: B65D3/06
Filed: 1936-06-10
Abstract: 476,579. Paper drinking-cups. DEHN, F. B. (Lucup Corporation) June 10, 1936, No. 16245. [Class 128] [Also in Group XVII] A paper drinking-cup is formed by folding a substantially square blank along lines 9, the overlapping portions being secured together by adhesive 18, and then folding back the top portion along line 10 and securing it by adhesive 19. The blank may be a complete square or, as shown, the corner opposite to the bottom corner may be rounded off.
Patent GB-625225-A (GB)
Title: Improvements relating to fastening devices
IPC: F16B5/10
Filed: 1947-06-19
Abstract: 625,225. Stud-and-socket fastenings. DZUS, W. June 19, 1947, No. 16251. Convention date, March 6, 1942. [Class 44] In a fastening of the kind in which a rotatable stud on one part engages in a socket on the other, the socket comprises a collar, a spring encircling the collar and a crossbar engageable by the stud member and integral with or connected to the spring. The collar 21 has a flange 27 riveted to a plate 9 and is formed with longitudinal slots 24 for limiting the movement of the cross-bar 23. The spring 22 has double coils the ends being connected by the cross-bar 23. The stud 14 which is rotatably secured to a second plate 8 by a grommet 18 has a pair of cam-shaped openings 15 adapted to embrace and lift the cross-bar 23 to compress the spring and secure the plates together. In another form the socket member is covered by an outer casing provided with a flange for attachment to the plate 9. For securing the socket member to a fabric sheet, the flanges of the collar and outer casing are disposed on opposite sides of the sheet and riveted together. Specification 414,290 is referred to.
Patent GB-228068-A (GB)
Title: Improvements in crushing and kneading mills
IPC: B02C15/14
Filed: 1924-07-08
Abstract: 228,068. Kempter, F. July 8, 1924. Roller apparatus. -In a crushing and kneading mill for treating plastic substances and of the type comprising a circular dish and one or more heavy cylindrical runners free to rise or fall as the dish or runners rotate, the cylindrical surface of the runner is provided with deep recesses which cause a kneading of the material and reduce the grinding effect, the recesses being arranged so that a portion of the peripheral surface remains unbroken over the entire periphery of the runner. As shown, the runner a is carried by a crank-shaft c mounted in bearings d, and the recesses e on the surface of the runner form teeth f and may be pointed or formed with sharp edges. The plain portion of the runner serves as a tread for the runner when the dish b is empty or only partly charged and prevents the. dish from being worn away by the edges of the recesses. A scraper is provided to return into the path of the runner the material that has been forced aside.
Patent GB-923579-A (GB)
Title: Improvements relating to the electroplating of aluminum and alloys thereof
IPC: C25D5/44
Filed: 1959-05-13
Abstract: 923,579. Electro-plating aluminium. GENERAL ELECTRIC CO. May 13, 1959 [June 4, 1958], No. 16440/59. Class 41. Aluminium and alloys thereof are prepared for electroplating with silver or other metals by (1) cleaning by hot alkali hydroxide bath, (2) rinsing and dipping in an alkaline solution of zinc and alkali cyanides to give a flash zinc coating, (3) passing a current in the same solution to give a thin electro-plate of zinc. The alkali etch solution may include potassium tartrate, which dissolves any magnesium and manganese hydroxides present, and may be followed by a nitric acid dip. The plating solution may include sodium sulphide or carbonate, or a very little silver cyanide with polyvinyl alcohol. Details of relative concentrations and their effects are given. The final coating may be Ag, Cu, Cd, brass or tin. Specification 747,871 is referred to.
Patent GB-317162-A (GB)
Title: Improvements in coin freed automatic sales apparatus
IPC: G07D3/12
Filed: 1928-06-06
Abstract: 317,162. Eller, F. June 6, 1928. Coin action, multiple-coin.-A coin assorting device for use in coin-freed apparatus taking coins of two sizes, such as described in Specification 303,161, comprises a longitudinally and laterally inclined shoot provided with a recess b for the larger coins d<1> and a recess e for the smaller coins d<2>, the recesses in the first portion of the shoot having a common trackway c for the coins and the recess e being inclined away from the wall of the recess b as shown in Fig. 3 at the lower portion of the shoot, the track c is divided into two branches separated by a partition wall f having an edge f<1> gradually inclined at such an angle that the smaller coins are engaged thereby at their top parts and deflected into the branch track c<2>, the extra tilt of the smaller coins facilitating their deflection. The larger coins engage the shoulder b<1> between the recesses b, e and travel straight through. The coins pass to shoots g<1>, g<2> leading to the releasing mechanism.
Patent GB-1366064-A (GB)
Title: Detonator for landmines
IPC: F42C14/08
Filed: 1966-04-14
Abstract: 1366064 Detonators for land mines INDUSTRIE-WERKE KARLSRUHE AG 14 April 1966 [30 June 1965] 16485/66 Heading F3A A detonator for a land mine which operates when subjected to normal loading, when an attempt is made to unscrew the connection between it and the mine or when the position of the mine is altered, is characterized in that downward pressure on a pressure-transmitting member 30 carrying a thrust ball 4 sets in motion a clockwork time delay mechanism 6 and simultaneously depresses an operating pin 34 which moves a contact spring 35 into a central position between and spaced from two contacts 36, 37, Contact between the spring 35 and either of the contacts 36, 37 causes detonation of the mine through the intermediary of an electric primer (not shown). A control plate 10 rotated by the clockwork mechanism 6 operates a control arm (not shown) by means of cams 11 to drive two opposed spring-mounted contact pins (not shown) towards a hollow sphere 14 attached to the detonator housing 1 to make contact with and hold in position a freely moving contact ball 20 contained within the sphere, the contact ball consisting of two gold-plated caps 22 separated by an insulator 23, the upper cap carrying a gold-plated conical contact plate 27 upon which lies a gold-plated ball 26 which can roll freely and serves as a connecting element. The clockwork mechanism 6 includes a hollow shaft 7 lined with an insulating sleeve 9. The control plate 10 is attached to the hollow shaft 7 and a gold-plated steel ball 39 is fitted loosely in a recess 38 in the upper part of the sleeve 9. This ball rests against a contact plate 40 and, when the clockwork mechanism 6 is started, rolls along a fixed insulated runway 42 until it meets a contact strip 43 and stops the mechanism 6. The detonator then becomes live. A gas-tight miniature accumulator fitted inside the sleeve acts as the power source for the detonating circuit. The contact ball 20 carries a lead weight 24 below the conical contact plate 27 to ensure that the open base of the latter always faces upwards. When the detonator is screwed into the mine, a control pin (not shown) is depressed by a sleeve (not shown) extending from the pressure-transmitting member 30, so starting the clockwork mechanism 6. If the position of the mine which is now laid should be altered, ball 26 will roll outwards and establish contact between the conical contact plate 27 and the upper cap 22 closing the circuit through the primer and so detonating the mine. When the mine is traversed, thrust ball 4 is depressed by a certain further amount and sleeve 32 depresses the operating pin 34 which presses contact spring 35 on to contact 36. The circuit through the primer is once again closed. Should an attempt be made to unscrew the detonator, a helical spring 31 drives sleeve 32 upwards. Operating pin 34 is thus freed from pressure and allows contact spring 35 to meet contact 37, which once again closes the circuit through the primer.
Patent GB-1535890-A (GB)
Title: Method of producing shuttle materials and shuttle materials and shuttles produced thereby
IPC: D03J5/02
Filed: 1977-04-20
Abstract: 1535890 Moulding shuttle material MIZOBATA SHOJI KK (MIZOBATA & CO Ltd) and K I JO 20 April 1977 [20 April 1976] 16501/77 Heading D1E [Also in Division B5] A material from which a shuttle is to be made is produced by impregnating a shaped wood block 1 with resin enamel, drying the impregnated block, winding around the block at least one turn of cloth 4 which has been impregnated with the same resin enamel and dried and cut to a required size, and moulding the assembly by sections 5, 5' under heat and pressure to bond the cloth to the block. The resin enamel may be a phenol resin enamel or an epoxy resin enamel.
Patent GB-983424-A (GB)
Title: Improvements in and relating to devices for assembling tubular frameworks, and frameworks incorporating the same
IPC: F16B12/40
Filed: 1961-05-05
Abstract: 983,424. Furniture joints &c. P. CADOVIUS. May 5, 1961 [Feb. 14, 1961], No. 16513/61. Heading A4W. [Also in Divisions E1 and F2] A member for connecting tubes of a framework or supporting a tubular framework on a wall comprising a spigot having a reduced part 70, Fig. 14, between two parts 32, 73 over which a framework tube 71 can be engaged out of alignment with the spigot to avoid obstruction by another part of the framework, has means associated with either the inner or the outer portion of the spigot for preventing separation of the tube and the spigot. This means may comprise a spring plunger protruding from the outer part 73 into a hole in the tube or by a screw 75, Fig. 14, adapted to spread the two split parts of the end of the spigot against the tube. The outer end of the spigot may be split in three parts 80, 81, 82, Fig. 16, which are spread by a screw 87 in one of the parts. Tubes 92, 93, Fig. 18 in bores in the end of the spigot are moved out against the tube by a right and left-hand screw 94. In Fig. 4 a rubber disc 43 is secured in a groove behind the inner or outer part 42 and has a bevelled edge which jams between the part 42 and the tube. A rubber ring may be mounted in grooves in the tube and spigot. Hollow spigots 170, Fig. 10 at each end of a tube may be secured by a wire 175 inside the tube 174 passing through the pins and secured by cotters 176 the wire being strained by a screw plug 177 engaging one of the cotters. This arrangement is used in a garage framework having a cloth covering. Three to six spigots are shown mounted on support 50-53, Fig. 6, to connect tubes 54, 55 to form a framework and metal boards 57 have curved spring edges 58 which clip over the tubes and have notches 31 to accommodate the edges of other boards. The pins may be hollow and accommodate electrical wiring. Specification 932,239 is referred to.
Patent GB-581535-A (GB)
Title: Improvements relating to mountings for spectacle lenses
IPC: G02C1/02
Filed: 1944-08-31
Abstract: 581,535. Spectacle frames. HADLEY CO., Ltd., and ALEXANDER, G. D. Aug. 31, 1944, No. 16602. [Class 97 (i)] In rimless or semi-rimless spectacles in which one or two securing straps are provided for each lens, the strap 8 is rigid or integral with an internally threaded bush 9 extending through a hole in the lens 1 and held thereto by a screw 11 and a transparent washer 12, a resilient washer 10 of natural or synthetic rubber providing a resilient mounting. The washer 12 may be omitted.