baber/WOPTO huggingface dataset:
Patent GB-320896-A (GB)
Title: Improvements in and relating to clockwork mechanism for mechanical models and toys
IPC: A63H29/06
Filed: 1928-07-24
Abstract: 320,896. Mackenzie, J., and Winteringham, Ltd. July 24, 1928. Actuated or applied by speed regulators.-In mechanical models and tovs driven by clockwork mechanism having centrifugal governor devices, one end of the governor spindle B is journaled in a frame D and the other end in a bearing A attached to another frame C. The outside of this bearing is screwed with a thread of large pitch, and upon it is threaded a friction disc F. The disc is partly rotated by a rod H attached to it and thus its distance from the governor weights G' is varied. The rod H is operated from any convenient position on the toy, the motion of the disc being limited by a pin I working in a slot in the frame C. The governor has weights G<1> attached to the spindle by a flexible steel strip G having projections G<2> which rub on the disc, and is driven by a gear wheel E meshing with the clockwork mechanism.
Patent GB-794025-A (GB)
Title: Improvements in or relating to unidirectionally conducting elements
IPC: H01L29/00
Filed: 1954-07-22
Abstract: 794,025. Semi-conductor rectifiers. CENTRE D'ETUDES ET DE DEVELOPPEMENTS DE L'ELECTRONIQUE CEDEL. July 22, 1954 [Aug. 13, 1953], No. 21448/54. Class 37. A rectifier comprises a layer 1 of germanium or silicon on which is a quasi-molecular coating of dielectric material 2 with a network of macroscopic meshes through which contact is made between the semi-conductor and an overlying conductive film 3. The arrangement effectively provides a plurality of point contacts. The dielectric coating may consist of alumina, or silica. The semi-conductor material 1 may be deposited on a base-plate 6 of Al, Fe or Zn. The base-plate, and fins 7, which may also be provided, facilitate cooling.
Patent GB-496603-A (GB)
Title: Improvements in or relating to electron lenses
IPC: H01J29/62
Filed: 1937-08-04
Abstract: 496,603. Cathode - ray tubes. KLEMPERER, O., and WRIGHT, W. D. Aug. 4, 1937, No. 21457. Addition to 480,857. [Class 39 (i)] In an electron lens which consists of coaxial cylindrical electrodes, the ratio of the effective diameters of which is between 1À5 : 1 and 2À5: 1, as described in the parent Specification, the electrode which has the smaller effective diameter is provided with a diaphragm intermediate its length to reduce longitudinal spherical aberration. The lens may consist of two electrodes 8, 9, Fig. 1, having the same diameter ; the electrode 8 is given the higher potential and contains the more nearly parallel of the incident and emergent beams. A diaphragm 10 in the electrode 8 has an aperture, the diameter of which is half that of the electrode 8, and is spaced from the end adjacent the electrode 9 a distance which is between half and twice, but is preferably equal to, the radius of the electrode 9. The diaphragm may be of frusto-conical or spherical shape.
Patent GB-740499-A (GB)
Title: Improvements in or relating to jig-saw or other sectional picture panels
IPC: A63F9/10
Filed: 1953-08-04
Abstract: 740,499. Jig-saw puzzles. DINES, K. W. July 2, 1954 [Aug. 4, 1953], No. 21473/53. Class 132(3) A jig-saw puzzle has some or all the interfitting pieces formed with the picture surfaces in relief, and the undersurfaces of the pieces with integral reinforcement ribs. As shown, the representation of a motor car radiator C, Fig. 1, has a curved surface portion 3, Fig. 2, and serrated sunk portions 4, the latter representing the radiator grid. A reinforcement rib 5 is inset from the edge of the piece and has lo.cating studs 6 which engage in holes 7 formed in a baseboard 2. The pieces may be made of synthetic plastic in moulds or by pressing a softened sheet of plastic between opposed dies or rollers.
Patent GB-1503951-A (GB)
Title: Voltage-current converter
IPC: H03F3/72
Filed: 1975-05-20
Abstract: 1503951 Voltage to current converters PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd 20 May 1975 [14 June 1974 27 March 1975] 21473/75 Heading H3T A circuit for converting a balanced voltage signal applied at 9, 10, Fig. 2, to a balanced current output at 2, 6, comprises two current mirrors T 1 , T 2 , T 3  and T 4 , T 5 , T 6  linked by a resistor R. Since the signal current flows only through the transistors T 2 , T 5  and resistor R, vertical PNP transistors T 7 , T 8  may be used as input transistor without impairing the high frequency performance of the circuit. If it is desired to use PN: PN input transistors instead, the collectors are connected to points 3 and 7 and the emitters to points 4 and 8 and a current source is provided in each emitter circuit, Fig. 4 (not shown). The input transistors may alternatively be fieldeffect transistors. In one embodiment, Fig. 5, the current sources 13 and 14 are current mirrors T 15 , T 16 , T 17  and T 18 , T 19 , T 20 , and the collectors of the input transistors are connected to the inputs of the current mirrors. The current sources in the emitter circuits of the input transistors are constituted by linked series transistors T 11 , T 13  and T 12 , T 14 . The potentiometer 19 permits D.C. offset control. Point 18 is connected to a constant voltage and point 17 is connected to a voltage having temperature dependent and independent components to compensate for thermal variations the base-emitter voltage of transistors T 11 , T 12 . To improve common-mode rejection, transistors T 16 , T 19  may be replaced by a single current source, Fig. 6 (not shown). The voltage-current gain of the circuit may be made selectable by providing different values of R to be switched into the circuit. Alternatively, to avoid switching in the signal path, a plurality of pairs of current mirrors may be permanently connected to the output each with a different value of R. The desired pair is selected by a PNP switching transistor connected at points corresponding to 1 and 5, Fig. 8 (not shown). A modified circuit using NPN switching transistors is described, Fig. 9 (not shown).
Patent GB-1136467-A (GB)
Title: Accessory for carburettors for engines
IPC: F02M21/00
Filed: 1967-05-09
Abstract: 1,136,467. Carburetters; auxiliary air admission devices. P. AUGUST. May 9, 1967 [Jan. 9, 1967], No. 21504/67. Heading F1B. The invention relates to an attachment for a carburetter, the carburetter including a suction pipe forming a Venturi and air and fuel inlet passages to the suction pipe. The attachment comprises a base portion located beneath the carburetter and acting as a base therefor and having a nose portion 1 protruding into the suction pipe, a first air port 4 located beneath the nose portion on the idler side of the suction pipe and a second port 8 located on the opposite side of the suction pipe below the nose portion. The first air port communicates by means of passages with a secondary air inlet 3. The second port communicates by means of passages with the secondary air inlet 3 and with an additional air inlet adapted to communicate permanently with an inlet for fuel vapour from the engine means are provided for regulating the amount of air admitted to the first air port and a valve means is provided for controlling the amount of air admitted to the second port. The secondary air inlet may be provided with an electrical heating element.
Patent GB-708332-A (GB)
Title: Improvements in and relating to machines for winding packages of yarn or the like
Inventor: MACIVER ANDREW
IPC: B65H54/36
Filed: 1950-09-01
Abstract: 708,332. Winding yarn. HOBOURN AERO COMPONENTS, Ltd. Nov. 30, 1951 [Sept. 1, 1950; Dec. 8, 1950; Aug. 31, 1951], Nos. 21609/50, 30090/50 and 20657/51. Class 120(2) Package end-taper control means for a winding machine, winding packages with at least one conical end, comprises, yarn guiding means incorporating a slotted element 21 secured to constant-stroke traverse means 1, another slotted element 23 pivoted at 24 to the element 21 for rocking in the general direction of traverse and constituting the yarn guide proper at 26, and a. slidable control element 18 engaging by a guide pivot 19 the slots 20, 22 of both elements 21, 23, the slots 20, 22 co-operating to the end that a vertical movement produced in the pivot 19 results in-propor-- tional horizontal movement of the yarnguide 26, the elements 21, 23 co-operating with an elongated control member 7 rockable on a pivot 13, preferably at approximately its mid length, the element 18, as it is reciprocated by the yarn guiding means, moving along the control members 7 as it gradually rocks as through adjustable linkage 36, 41, 44, consequent upon the growth of the package, to form similar or different tapers at opposite ends of the package. In a modification, the control means 7 is replaced by a bar and rod pivotally connected together at one end, their free ends engaging in cam-slots in an adjustable plate moved with the growing package.
Patent GB-977088-A (GB)
Title: Process for the preparation of phenylalkanolamine derivatives
IPC: C07C45/64
Filed: 1962-06-05
Abstract: Compounds of the general formula <FORM:0977088/C1/1> (wherein R and R1 are hydrogen atoms or alkyl groups and X is a hydrogen atom or a hydroxyl or alkoxy group) and acid addition salts thereof are prepared by condensing an aldehyde of the general formula <FORM:0977088/C1/2> (wherein R11 and R111 are alkyl or aralkyl groups and X1 is a hydrogen atom or an alkoxy or aralkoxy group) with nitromethane in a solvent mixture comprising a C1-4 aliphatic alcohol, an aromatic hydrocarbon and an amine at a temperature of from -10 DEG  to +30 DEG C. and in the presence of an alkali metal alcoholate as condensing agent, converting the alkali metal salt thus formed to the corresponding nitroalkanol of the general formula <FORM:0977088/C1/3> by treatment with acid, reducing the nitroalkanol and simultaneously converting any aralkoxy groups which may be present on the nucleus to free hydroxy groups by catalytic hydrogenation, and optionally converting the product to an acid addition salt. The following intermediates are prepared from the starting materials indicated in parentheses: 3,5-dibenzyloxybenzaldehyde (3,5-diacetoxybenzoyl chloride, via 3,5-diacetoxybenzaldehyde); 3,5-dibenzyloxy -4- methoxybenzaldehyde (3, 4, 5-triacetoxybenzoyl chloride, via 3,4,5-triacetoxybenzaldehyde; 3, 4, 5-tribenzyloxybenzaldehyde; the sodium derivative of 3, 5-dibenzyloxy -4-hydroxybenzaldehyde; and 3, 5-dibenzyloxy -4-hydroxybenzaldehyde); 3-methoxy-4, 5-dibenzyloxybenzaldehyde (3-methoxy-4, 5-diacetoxybenzoyl chloride, via 3-methoxy-4, 5-diacetoxybenzaldehyde); 3-ethoxy-4, 5-dibenzyloxybenzaldehyde (3-ethoxy-4, 5-diacetoxybenzaldehyde); and 3, 4-dibenzyloxy -5- isopropoxybenzaldehyde (methyl gallate and benzal chloride, via methyl 3, 4-benzylidenedioxy -5- hydroxybenzoate;methyl 3,4-benzylidenedioxy -5- isopropoxybenzoate; 3,4-benzylidenedioxy -5- isopropoxybenzoic acid; 3, 4-dihydroxy -5- isopropoxybenzoic acid; 3, 4-diacetoxy -5- isopropoxybenzoic acid; 3, 4-diacetoxy -5- isopropoxybenzoyl chloride; and 3, 4-diacetoxy -5- isopropoxybenzaldehyde).
Patent GB-1133910-A (GB)
Title: Modified polyelectrolyte composition and method of making same
Inventor: MICHAELS ALAN SHERMAN
IPC: H01M50/414
Filed: 1967-05-10
Abstract: 1,133,910. Ionically cross-linked polymer compositions. AMICON CORP. 10 May, 1967, No. 21636/67. Heading C3P. [Also in Division D2] A composition is formed of two synthetic organic linear polymers ionically cross-linked to each other, one of the polymers containing dissociable anionic groups and the other dissociable cationic groups, and a water-miscible compound which is non-volatile at 20 C., and which is either an acid having an ionization constant greater than 10<SP>-2</SP> or an organic oxysulphur and/or oxyphosphorus compound and which is distributed in the composition. The two polymers may be sodium polystyrene sulphonate and polyvinyl benzyl trimethyl ammonium chloride, and the compound may be sulphuric or phosphonic acid, dimethyl sulphoxide or hexamethyl phosphoramide. In examples, the ionically cross-linked polymer was dissolved in an aq. solution of (1) hydrobromic acid, dimethyl sulphoxide and 1,4- dioxane which was then spread on a plate and the film dried by heating; (2) as (1) wherein the acid is hydrochloric.
Patent GB-1386296-A (GB)
Title: Method of casting and subsequently deburring of workpieces and a device for carrying out the method
IPC: B22D31/00
Filed: 1972-05-10
Abstract: 1386296 Treating castings; shearing W REIS 10 May 1972 [14 May 1971 12 Jan 1972] 21699/72 Headings B3F and B3W A hot casting 29 from a casting machine (11) is removed by grippers (15) and placed between pattern members 121, 122 of a deburring machine (12). The casting 120 is located by burrs (29, 33) between holding pins 127, 128 as shown at the left hand side of the Figure, and the pattern members 121, 122 are slowly moved towards each other as the casting 120 cools. If desired the casting 120 can be force-cooled by liquid coolant 41 or by steam 42. As the casting 120 cools it shrinks upon the pattern members 121, 122 which have a similar configuration to that of the dies in which the casting 120 has been cast. Coolant may be passed through bores 40 in the pattern member 121, 122 to aid shrinking. When the pattern members 121, 122 are completely closed as shown at the right hand side of the Figure, the casting 120 is clamped therebetween at high pressure and a shearing member 124 brought across the casing to remove the burrs 29 (33). After deburring a bore 45 may be drilled in the casting 120 by a milling head 43. The casting machine (11) (Fig. 1, not shown) and deburring machine (12) are preferably of the type having horizontally moving dies or pattern members (121, 122) and the machines (11, 12) are arranged in parallel. The grippers (15) may be mounted on the deburring machine (12) at its side remote from the casting machine (11) and may move horizontally on an arm (4) which extends across and between the pattern members (121, 122) when the gripper (15) is removing a casting from the casting machine dies. Alternatively, rails (13) (Fig. 3, not shown) are mounted above and across both machines (11, 12) and a travelling carriage (14) reciprocates between the machines (11, 12) on the rails (13), the carriage (14) having mounted below it a vertically reciprocable gripper (15). A die spraying apparatus (26) can also be mounted on a carriage (24) on the rails (13).
Patent GB-296021-A (GB)
IPC: C07C17/10
Filed: 1928-07-26
Abstract: 296,021. Polanyi, M., and Bogdandy, S. von. Aug. 23, 1927. [Co??ve)2fi.)n date]. Addition to 28<9>,795. Hydrocarbon halogen derivatives; methyl chloride.-In obtaining halogen derivatives of organic. compounds according to the method dei'crihed in the parent Specsfication, the vapour of cadmium or zinc is employed as the "initiator" of the reaction. '
Patent GB-597761-A (GB)
Title: Improvements in switch frogs for the overhead conductors of electric traction systems
IPC: B60M1/14
Filed: 1945-08-25
Abstract: 597,761. Conductor points. BRITISH INSULATED CALLENDER'S CABLES, Ltd., LONDON PASSENGER TRANSPORT BOARD, BROOM, T. C., and WILKINSON, T. Aug. 25, 1945, No. 21859. [Class 104(iii)] An overhead - conductor switch frog for electrictraction systems is operated when a solenoid 29, Fig. 3 releases a spring 34 holding trigger 20 in engagement with a cam 15 which is rotated by a spring 35 and coupled to the frog. Solenoid 29 is actuated from a contact engaged by a collector whenever a passing vehicle has its controller in the "on" position. After leaving the frog, the collector engages a second contact to actuate solenoid 30 which rotates cam 15 to re-set the frog. The frog may also be actuated by hand from a rope thimble 81 coupled to a chain 78 passing round a pulley 79 on the frog pivot 9 and connected to a lever 71 having a spring 77 and an arm 72 which engages the trigger arm 26. The frog may be re-set by hand from a rope thimble 67 coupled to a lever 63 rotating loosely on the spindle 11 of cam 15, the lever being connected to a spring 65 and having an arm which engages cam 15. In a modification, Fig. 6, only one solenoid 29 is employed, the frog and cam 15 being re-set by the collector engaging a roller 112 carried by a. forked arm and coupled by a spring connection 103 to a rod 89 attached to an arm 87 carried by cam 15, the rotation of the cam to set the frog moving the roller into the path of the collector; the roller-arm may also be operated by hand from a thimble 116.
Patent GB-218828-A (GB)
Abstract: 218,828. Thomas, J. G. P., and Thomas Inventions Development Co., Ltd. June'27,1923. Pneumatic actuaation.-During running, the ignition circuit is kept closed by the action of the engine suction on a piston 2 which works within a cylinder 1. The outer end of the piston rod 3 is provided with a wipe contact 4 which is adapted to engage insulated contacts 5, 6 to close the circuit. The contact 4 falls away when the engine stops.
Patent GB-188791-A (GB)
Title: Improvements in or relating to carburettors for internal combustion engines
IPC: F02M17/14
Filed: 1921-08-18
Abstract: 188,791. Price, A. H. Aug. 18, 1921. Spray carburettors.-A suction-actuated extraair valve k is rigidly connected to a needle fuelvalve e so that with increase of suction, more air and less fuel are admitted to the carburettor. The relative setting of the valves may be adjusted by rotating the needle valve which may be connected to the valve k by a screw thread f as shown. A portion q of the needle valve stem may consist of a closely wound helical spring so as to be flexible. A by-pass i may be provided for priming the carburettor on starting.
Patent GB-635214-A (GB)
Title: Improvements in or relating to fuel injection pumps for internal combustion engines
IPC: F02M57/02
Filed: 1946-07-24
Abstract: 635,214. Fuel injection. ROGERS, G. M. July 24, 1946, No. 22044. Convention date, Aug. 2, 1945. [Class 7 (iii)] [Also in Group XXVIII] A fuel injector comprises a pump plunger 38 with a helical edge 39 controlling a delivery port 28 and pressure release port 27, and a valve 33 controlling the pressure in the annular pressure chamber 40 formed on the plunger is loaded by a circular spring-ring 34. The fuel is filtered by plugs 53 positioned in fuel delivery and return pipes connected to a reservoir 11a feeding the pump inlet ports 30, and the duration of injection is controlled by rotation of the plunger through a rack and pinion 63, 55. The valve 33 is held closed at low speeds to maintain injection pressure and opens as the pressure rises with increasing speed to by-pass some: of the fuel back to the reservoir 11 a. A very small step 39b, Fig. 7, on the edge 39 causes a preliminary fuel injection. The Specification as open to inspection under Sect. 91 comprises also a modification in which the pressure controlling valve 33 is loaded by a coil spring, and a second modification in which the step 39b is omitted and the preliminary injection controlled either by a small port, below the edge 39, connected with the passage 41, or by a small passage or notch connected with the delivery passage 28a and uncovered before the port 28. In addition the pump may be formed separately of the injector nozzle and incorporated in a multi-element pump unit. This subject-matter does not appear in the Specification as accepted.
Patent GB-1420233-A (GB)
Title: Intermediates in the preparation of chemically modiefied polymeric materials having reduced tendency to cause thrombosis or blood clotting
IPC: A61L33/00
Filed: 1973-04-30
Abstract: 1420233 Modifying polymers UPJOHN CO 30 April 1973 [30 May 1972] 22150/75 Divided out of 1420232 Headings C3E C3P and C3R Modified natural and synthetic polymeric materials, e.g. rubber, polyolefins and polyesters having a plurality of C-H bonds, contain some of the H atoms replaced by groups of formula wherein R and R 1  are H or halogen atoms or C 1- C 4  alkyl and Q is NO 2 , NH 2  or a diazo salt radical. The modification is effected by irradiating (e.g. with ultraviolet, ultrasound or X-ray) a corresponding nitrophenyl-sulphonylazide in contact with the polymeric material. The NO 2  group is subsequently reduced to NH 2  and diazotized to give a diazo salt radical. In this form it may be coupled with a compound having antithrombogenic or anticlotting activity to give a polymer having these properties.
Patent GB-1506464-A (GB)
Title: Aqueous carbon black preparation
IPC: C04B28/02
Filed: 1975-05-22
Abstract: 1506464 Cement additive compositions containing carbon black DEUTSCHE GOLD-UND SILBER-SCHEIDEANSTALT 22 May 1975 [29 May 1974] 22183/75 Heading C1H [Also in Division C4]  A mineral binder incorporates an aqueous carbon black preparation containing a wetting agent, the preparation comprising carbon black, water and a fluorine-containing wetting agent. Suitable mineral binders are concrete, roof-tile, exposed concrete, asbestos concrete and external plaster formulations.
Patent GB-1316381-A (GB)
Title: Apparatus for generating hydraulic or pneumatic power for example for operating submerged well heads
IPC: F15B1/02
Filed: 1971-04-19
Abstract: 1316381 Wells &c INSTITUT FRANCAIS DU PETROLE DES CARBURANTS ET LUBRIFIANTS 19 April 1971 [25 Feb 1970] 22214/71 Heading E1F [Also in Division F1] Drilling mud of an underwater well head is fed from a duct 25 and acts as an auxiliary fluid which is used to operate a closed hydraulic circuit in which an accumulator 1 discharges liquid to a tank 6 through mechanisms 4a, 4b to operate the same, the liquid being returned to the accumulator 1 under the influence of the drilling mud. If valves 3a, 3b are opened when piston 10 in tank 6 is in its lowered position, then stored fluid flows from accumulator 1 through mechanisms 4a, 4b and one-way valve 7 to tank 6, thus raising piston 10 till it abuts stop 12 in the tank 6. Mechanisms 4a, 4b actuate members of the well-head equipment such as blow-out preventers and valves. When piston 10 abuts stop 12 the pressure in pipe 2 drops till it no longer operates jacks 26, 27 holding valves 20, 23 in the positions shown. Springs 28, 29 urge the valve members so that line 19 is closed and line 22 open. Drilling mud thus flows from duct 25 to line 22 and thus to the space above piston 14 which is urged downwards to move piston 10 through rod 15. Fluid is thus discharged from tank 6 through line 8 back to accumulator 1. When the pressure in line 2 has risen again sufficiently, jacks 26, 27 are operated to open line 19 and close off duct 25 from duct 22. Thus mud is pushed out of tank 10 by piston 14 under the influence of spring 16, mud being discharged through pipe 19 into the surrounding sea. The cycle can then be repeated.
Patent GB-464186-A (GB)
Title: Improvements in electromagnetic contactors
IPC: H01H50/22
Filed: 1936-08-12
Abstract: 464,186. Electromagnetic switches. ALLMANNA SVENSKA ELEKTRISKA AKTIEBOLAGET. Aug. 12, 1936, No. 22215. Convention date, Nov. 25, 1935. [Class 38 (v)] An electromagnetic contactor has the armature freely mounted on an extension of the shaft carrying the movable contacts, the armature being connected to the contact shaft by means of a lever-and-link mechanism having a toggle effect. As shown in Figs. 2 and 3 the armature 7 is secured to a carrier freely mounted on the shaft 4. This shaft is mounted in bearings and has secured between it and a bar 5 movable contacts 1 .. 3, the two bars being held together laterally by bars 11. The linkage connection between the armature and the contact shaft comprises a link 13 between the armature carrier and the lower end of a swinging link 14 pivoted to a fixed support 6 and a link 15 between the common pivot of links 13 and 14 and the contact-carrying bar 5. Thus on attraction of the armature 7 to the core 9 by energization of coil 10 the lever-and-link mechanism transmit a closing force to the contacts with a toggle effect due to the combined action of the armature carrier and the link 13.