baber/WOPTO huggingface dataset:
Patent GB-389040-A (GB)
Title: Improvements in secret combination electric switches for preventing unauthorized useof motor vehicles
IPC: B60R25/04
Filed: 1932-10-22
Abstract: 389,040. Secret contact-combination switches. PERKINS, J. A. WITHERINGTON-, 35, Harrington Square, Hampstead Road, London. Oct. 22, 1932, No. 29580. [Class 38 (v).] A secret contactcombination switch, adapted when in the set position to close an ignition circuit for a motor vehicle and to open an alarm circuit and when disarranged to prepare the alarm circuit so that the alarm will operate when the bonnet, door, brake lever, &c. is tampered with, comprises numbered rotatable concentric rings b each of which carries a metal segment l and a metal plate q. In the set position, three pairs of spring-pressed plunger contacts k arranged in the base engage the insulating gaps in the metal segments l so that the alarm circuit is open and three pairs of spring blade contact catches i in the base are bridged by the three plates q, the latter being arranged in series and closing the ignition circuit. When a ring b is moved, the ignition circuit is broken and the alarm circuit prepared by the engagement of a segment l with its contacts k, the three sets of segments and contacts being arranged in parallel. Precise angular positions are given to the rings b by the catches i engaging either recesses in the plate q or other recesses j in the ring. The combination may be altered by adjusting the numbered plates c rotatively relative to the rings b.
Patent GB-621883-A (GB)
Title: Improvements in or relating to thermo-hardenable organosilicic resins
IPC: C08G77/00
Filed: 1946-10-04
Abstract: Thermo - hardening resins which produce flexible coatings are prepared by hydrolysing 100 mols. of monomethyltrichlorosilicane in admixture with 18-60 mols. of trimethylchlorosilicane.  The product has 1.31-1.75 CH3 groups per silicon atom.  In the example, a mixture of monomethyl trichlorosilicane and trimethyl monochlorosilicane is agitated in diethyl ether under reflux. Water is added and HCl removed.  The ethereal layer is decanted, neutralized, washed and concentrated and benzene added, followed by further concentration in vacuo.  The solution can be applied to a copper wire by immersion, solvent being evaporated between successive coats by brief heating at about 300 DEG  C.  The Specification as open to inspection under Sect. 91 includes the use of mixtures containing 1.28-1.31 CH3 groups/Si atom.  This subject-matter does not appear in the Specification as accepted.
Patent GB-1454677-A (GB)
Title: Method and apparatus for producing feeders for supply of heat softenable materials
IPC: C03B37/08
Filed: 1974-07-04
Abstract: 1454677 Welding by fusion OWENS-CORNING FIBERGLAS CORP 4 July 1974 [9 July 1973] 29704/74 Heading B3R In making a stream feeder 10, for flowing streams of heat-softened mineral material 19, such as glass, to make textile filaments, comprising a plurality, e.g. two thousand or more, of pre-formed flanged tubular tips 14 inserted in, or positioned over, circular openings 13 in a floor 12 of the feeder, each tip is welded to the floor by an electron beam directed on to the tip flange and following a circular (or elliptical) path outwardly of the tip tubular body. As shown, the floor 12 and walls (15), 16 of the feeder are welded together, and together with the tips 14 are of noble metals or alloys thereof such as platinum or platinum alloyed with rhodium or iridium. The tips may be made from tubing sections or deep drawn from strip stock. As shown in Fig. 1, the tips are arranged in pairs of rows each pair being separated by stream cooling and stabilizing fins 18. The openings 13 may be punched or drilled. The tips may be press-fitted into the holes, and to provide for tip flange seating the holes may be chamfered (Fig. 3, not shown). An assembly 22 of floor and tips is mounted in a fixture 24 for welding in a vacuum chamber (32) of an E.B. welder (30, Fig. 5, not shown), said fixture comprising a base-plate having tip row accommodating recesses 26, plate clamping means 27, and a water cooling tube 28. The E.B. welder includes a control means which automatically sizes and positions the beam and comprises a circle generator. After manual or indexed rough positioning of the welder over a first tip, the welder electronically scans the joint on two axes, at low current, to align the beam, and the circle diameter of the beam path is electronically adjusted. The welder gun of the fixture 24 is movable to bring the tips into successive welding engagement with the beam. For each weld, beam power is gradually increased as it moves around the flange, e.g. the beam is moved 180 degrees as power is increased to the welding level, 360 degrees at said level, and finally 180 degrees to its starting position as power is reduced. In Fig. 6 (not shown), tips to be positioned over the floor openings are fed from a hopper and pressed to the bottom of a feeder floor, a support therefor having tip alignment spikes protruding through the floor. Programme control may be used to position the tips over the spikes.
Patent GB-369536-A (GB)
Title: Process for the production of magnesium by electrolysis in a molten bath
IPC: C25C3/04
Filed: 1931-10-27
Abstract: 369,536. Electrolytic production of magnesium. I. G. FARBENINDUSTRIE AKT.-GES., Frankfort-on-Main, Germany. Oct. 27, 1931, No. 29742. Convention date, Nov. 8, 1930. [Class 41.] Magnesium is obtained by electrolysis of a fused mixture of magnesium chloride and other chlorides such as those of sodium, potassium, and calcium, in which the proportion of magnesium chloride is between 5 and 15 per cent ; this low proportion may be maintained even when the calcium chloride content is above 50 per cent. A suitable percentage composition is magnesium chloride 10, calcium chloride 40, sodium chloride 35, potassium chloride 15. A current density of 50 amps per sq. dem at 8-10 volts may be used ; the temperature of the bath should be 700-750‹ C. The separated magnesium floats on top and is removed at intervals.
Patent GB-775545-A (GB)
Title: Improvements in or relating to crop drying apparatus
IPC: F26B23/02
Filed: 1953-10-28
Abstract: 775,545. Crop drying apparatus. CROFTS, J. F. Oct. 28, 1954 [Oct. 28, 1953], No. 29748/53. Class 34(2) Apparatus for drying grass, grain &c. has a chamber 1 with compartments 1a, 1b and a raised perforated floor 2 through which hot gases of combustion are passed to dry the material supported thereon, the hot gases consisting of combustion products from a furnace, burning a mixture of heavy oil and water, mixed with air preheated by passage through a duct having a common metal wall 24 with the furnace, the opening in wall 4 through which the gases enter being provided with dampers 11 mounted on a common spindle. 12 and oriented so that when one opening is closed the other is open. Specification 775,546 is referred to.
Patent GB-496837-A (GB)
Title: Radio and television programmes indicator
IPC: H03J1/04
Filed: 1937-09-15
Abstract: 496,837. Clock - driven indicators. ROGERSON, J. C. Sept. 15, 1937, No. 29784. Divided application. [Class 118 (i)] A radio and/or television programmes indicator comprises a sheet or sheets 4 on which are arranged indications s of a number of different broadcasting stations, and arranged opposite the station indications, on a correct time basis, the programme-items to be transmitted, the station and programme items extending in relative rectilinear directions substantially at right-angles to each other in tabular form, each programme-item being located in a section of the sheet which covers a predetermined period of time, means for supporting the sheet in display position, and power operated means 6 adapted to move on a time basis relatively to the sheet for automatically indicating items on the programmes of the stations at any particular time. An audible or visible warning device may be arranged to operate when any required item is being transmitted.
Patent GB-1525356-A (GB)
Title: Floor sweeper
IPC: A47L11/33
Filed: 1977-07-15
Abstract: 1525356 Sweepers LEIFHEIT INTERNATIONAL GUNTER LEIFHEIT GmbH 15 July 1977 [28 July 1976] 29841/77 Heading A4F A carpet sweeper having a plastics housing 11 mounting a roller brush 15 driven by floorengaging wheels 14, includes at least one dirt collecting chamber 16 defined in part by a pivotable flap 19 integrally connected to the housing by a flexible hinge 20 so that the chamber can be emptied when a catch 21, 22 is released and the flap is opened.
Patent GB-299036-A (GB)
Abstract: 299,036. Holdsworth, L. D. Oct. 21, 1927, [Convention date]. Void [Published under Sect. 91 of the Acts]. Contacts, arrangement of external. - Ignition and other electric circuits are opened automatically when the engine stops. Contacts 14 associated with binding screws 13 for insertion into the ignition circuit are engaged by a movable contact 12 mounted on the rod 10 of a piston 8 which is responsive to the suction of the engine induction pipe. In a modification, a valve 19 for admitting additional air to the induction pipe carries a contact 21 which bridges contacts 14 when the engine suction opens the valve 19.
Patent GB-427963-A (GB)
Title: Improvements in variable speed gears
IPC: F16H15/52
Filed: 1933-10-27
Abstract: 427,963. Variable-speed friction gearing. TAYLOR, G., 14, Craven Hill Gardens, Bayswater, London. Oct. 27, 1933, No. 29921. [Class 80 (ii)] Coaxial rollers 6, 7 secured respectively to aligned driving and driven shafts 2, 3, engage idler-discs 11 on an axially-adjustable spider 10, held stationary during drive by a brakeband 19, which is released during a speedchange, to allow the spider to rotate freely, whereupon centrifugal force on the discs 11 reduces the loading-pressure thereon and allows the spider free axial movement. Preselective and automatic controls are provided. The latter means comprise balls in conical recesses 14 carried by the spider 10 and by a sleeve 15, freely mounted thereon and pivotally connected by spring-steel arms 20 with the brake-drum 18. Increase in load causes the spider to turn relatively to the brake-drum, the pivotal arms 20 causing axial movement which increases the gear-ratio. Such turning movement also causes the sleeve 15 to ride up the wedging balls and press axially on the discs 11 through compression springs 16, the friction engaging-pressure being thereby rendered proportional to the load. The springs 16 constitute the resistance to the load and determine the axial position of the spider 10 relatively to the brake-drum 18. The axial position of the brake-drum itself is manually controlled through a rock-shaft 24. The shaft 3 drives the sun wheel 26 of an epicyclic reversing-gear, operated by a clutchmember 32, moved by a rock-shaft 36 to lock a freely-mounted planet-carrier 29 to a driven annulus 31 or to the fixed casing 1. The rock-shafts 24, 36 are controlled by a single hand-lever 38, Fig. 3, having a loose ballmount on the shaft 24 to which it is operatively connected by a keyed plate 42 and tension or compression springs 41, which are inclined so as to urge the lever endwise into engagement with a fixed toothed quadrant 39. The lower end of the lever carries a bushing 43, slidable between stops on a rod 44, connected to a lever 45, secured to the reversing- shaft 36. The arrangement is such that, after the brake-drum 18, Fig. 1, has been moved to the limit of its travel in the direction for gearing down, further movement of the lever 38 compresses one of the springs 41 without affecting the rockshaft 24, whilst its depending bushing 43 throws the lever 45 through neutral into reverse. From this position, movement of the lever 38 in the opposite direction restores the forward drive, further movement of the lever for reducing the gear-ratio being permitted by a spring 48 on the rod 44. The provision of the spring- control 41 permits of preselective operation, since the movement of the lever 38 to a new position on the quadrant 39 serves only to compress one of the springs 41, the actual change taking place on release of the brakeband 19 through a pedal, which, on a vehicle may replace the usual clutch pedal. Overdrives are within the range of adjustment of the gear.
Patent GB-208140-A (GB)
Title: Improvements in the treatment of liquids by heat for sterilisation and other purposes
IPC: A23L3/14
Filed: 1923-11-29
Abstract: 208,140. Rafn, R. Dec. 8, 1922, [Convention date]. Sterilizing milk.-In heating liquids in bottles &c. for any purpose, but especially in sterilizing milk, the bottles are given a rotary motion varying periodically, so as to cause the liquid to have a washing motion over the interior of the bottle and thus facilitate the transmission of heat to the liquid. The bottles may be placed in a rotating basket with their axes making an angle say of 45‹ with the axis of the basket and the basket placed in a vessel heated by steam, water under pressure, &c. The basket is then given a rapid rotation, which is periodically reversed. For sterilizing milk, a temperature of 110-120‹ C. is employed.
Patent GB-1129238-A (GB)
Title: Method of internally coating tubular members with glass
Inventor: NELSON FORREST WILBUR
IPC: C23D5/00
Filed: 1967-06-29
Abstract: 1,129,238. Coating the bore of a tube. A. O. SMITH CORP. 29 June, 1967 [5 July, 1966], No. 30034/67. Heading C1M. To avoid marring the soft ground coat when applying a second coat with a lance slid within the bore, the first layer is cooled to within 200-900 F. below the optimum firing temperature of the ground coat so that it is sufficiently tough to resist abrasion by the lance. Examples of sodium borosilicate glasses suitable for the ground and second coats are given.
Patent GB-772750-A (GB)
Title: Setting mechanism for ten-key calculating machines
Inventor: UHLIG ARNO
IPC: G06C7/10
Filed: 1954-10-19
Abstract: 772,750. Calculating-apparatus. OLYMPIA WERKE AKT.-GES. Oct. 19, 1954, No. 30099/54. Class 106 (1). In a ten-key machine, two or more set-pin carriages are combined to form a single carriage having the pins interpersed denomination by denomination. The double carriage illustrated at D, Fig. 1, has a first series of pins 3a and, interspersed therewith, a second series of pins 3b both settable by a column of projections 5ab on a set of rock-bars 5 actuated by the keyboard 4. Step-shifting of the carriage during setting the first series of pins 3a is controlled by lowering an abutment 7a for co-operation with the usual step-shift stops 6a associated with the first series of pins 3a. After setting the pins 3a according to the value of a multiplicand, for example, the carriage is returned and a second abutment 7b lowered in place of the abutment 7a. This second abutment cooperates with step-shift stops 6b associated with the second series of pins 3b, the columns of which are successively registered with the key-operated projections 5ab to register a multiplier. The carriage 2 illustrated in Fig. 1 also includes a further series of pins E which may, for example, be employed for setting an item indicator. This further series is set by additional projections 5c on the beyboardoperated bars 5 simultaneously with the series 3b of the double carriage D. An abutment 7c co-operates with the step-shift stops associated with the series E during setting and the stop 7b of Fig. 3 is dispensed with. The series of pins E could be replaced by a second interspersed double series similar to the series D.
Patent GB-296923-A (GB)
Title: Improved flux for the welding or soldering of aluminium and other metals
IPC: B23K35/36
Filed: 1927-11-10
Abstract: 296,923. Reuss, W. Nov. 10, 1927. Fluxes.-A flux for the welding and soldering of aluminium and other metals comprises boracic acid, or a mixture of borax and boracic acid, and free caustic alkali such as caustic potash. In an .example the flux contains equal parts of borax, boracic acid, and caustic potash and may be used in the form of an aqueous solution.
Patent GB-631563-A (GB)
Title: Improvements in and relating to livestock watering devices
IPC: A01K7/06
Filed: 1947-11-13
Abstract: 631,563. Animal drinking troughs. BRITISH THOMSON-HOUSTON CO., Ltd., Nov. 13, 1947, No. 30219. Convention date, Nov. 16,1946. [Class 5(ii)] A livestock watering - device comprises a bowl 3 in the upper end of a cylindrical casing, the lower end of which is closed and set in the ground. The water supply valve 6 is opened by engage. ment of the animal's snout with the dish 17. Temperature is  electrostaticallycontrolled by the element 13 in cir. cuit with a heater 11 against the base of the bowl and a heated wire 12 around the supply pipe 5. Specification. 473,876 [Group XI] is referred to.
Patent GB-170497-A (GB)
Title: Method of producing or treating cement goods or objects
IPC: C04B41/62
Filed: 1920-10-26
Abstract: 170,497. Nielsen, N. P. Oct. 26, 1920. Cement and concrete surfaces, preserving.- Cement and like articles are impregnated with asphalt, pitch, &c., preferably of mineral origin, by heating the articles and impregnating-material separately to a similar temperature of over 200‹ C., or between 300‹ and 500‹ C. and bring- ing them into contact by dipping, pouring, immersion under pressure, or the like.
Patent GB-1203337-A (GB)
Title: Safety fasteners
Inventor: SHEFFER MARCUS BENJAMIN
IPC: A44B9/12
Filed: 1968-06-25
Abstract: 1,203,337. Safety fastener. M. B. SHEFFER. 25 June, 1968, No. 30286/68. Heading A3H. [Also in Division E2] A safety fastener comprises a coil spring 17 having an integral pair of arms 14, 16 terminating as members 12, 13 which have their outer ends co-operating to form a normally closed jaw. An end cap 18 fits over the coil spring to retain the coils closely together and an elastomeric material 25, having a high coefficient of surface frictioning is applied to the arms and the coil spring to give a safe grip.
Patent GB-893461-A (GB)
Title: Honing of machine finished surfaces
IPC: B24B19/06
Filed: 1959-09-07
Abstract: 893,461. Chucks. SLOAN, T. H. Sept. 7, 1959 [Sept. 8, 1958], No. 30404/59. Class 83 (3). [Also in Group XXIII] A chuck for gripping a workpiece while it is being finished by an abrasive band (Group XXIII) has spring jaws 24 which are mounted at the end of a hollow motor-driven spindle 19 and controlled by a central plunger 31. When withdrawn by a spring 32, the plunger retracts the jaws into gripping position by reason of their engagement with an 0-ring 28 on the tapered inner face 27a of an enclosing housing .27, and, when the plunger is advanced by cam action, it permits springs 26 to release the jaws and a ram 30 on the end of the plunger discharges the finished workpiece. The workpieces, which are fed automatically one by one to a position in alignment with the chuck, are urged into the chuck by a cam-controlled paddle.
Patent GB-1167393-A (GB)
Title: Improvements in or relating to Casement Stays
Inventor: SHAW RONALD
IPC: E05C17/18
Filed: 1967-07-01
Abstract: 1,167,393. Casement stays. AVEN STAINLESS STEEL PRODUCTS Ltd. 21 June, 1968 [1 July, 1967], No. 30452/67. Heading E2F. A casement stay has a stay strip 1 with holes 2 which may be engaged by pegs mounted on a window frame and formed at one end as a handle 3, a mounting 5 to be secured to the casement and a multi-pivot connection 4 between 1 and 5. The connection consists of a stirrup 7 having its base 8 adjacent to 5 and pivoted to it about an axis parallel to the direction in which the arms 9 of the stirrup project, a trunnion block 11 .fitting between the arms 9 and pivoted to them on pivot 12 and 11 is also pivoted to the stay strip on pivots 13. Means may be provided to limit the movement of the stay about either of the two axes other than its own pivot axis in the trunnion block.
Patent GB-1204805-A (GB)
Title: Semiconductor device
IPC: H01L23/36
Filed: 1968-06-26
Abstract: 1,204,805. Semi-conductor devices; circuit assemblies. HITACHI Ltd. 26 June, 1968 [7 July, 1967], No. 30463/68. Headings H1K and H1R. A semi-conductor device is provided with an electrode having a conductive track extending to a point at which it is not covered by a conductive layer insulated from and overlying the electrode. The conductive layer constitutes a protective screen for the active area of the semiconductor device and overlies an insulating layer which isolates it from the electrodes and from the surface of the semi-conductor wafer. The screen protects the insulating layer from moisture and prevents the accumulation of surface charges. As shown, Fig. 2, a planar transistor is produced by epitaxially depositing a high resistivity N-type silicon layer 23 on an N+ type substrate 22 and forming a P-type base region 24, an N+ type emitter region 25 and an N- type collector contact region 26 by diffusion using silicon oxide masking layer 27. Conductive tracks 28, 29, 30 are applied to the collector, base and emitter regions the latter two tracks extending over the oxide layer to points outside the active area of the device. A second insulating layer 31, for example of a silicate glass, is deposited over the surface, windows are formed to expose the conductive tracks 28, 29, 30, and contact pads 32, 33 (34) are applied and a conductive screen 35 is applied over the insulating layer 31 so that it covers the edges of the junctions. Solder layers 36, 37, (38) and 39 are applied to the contact pads 32, 33, (34) and the screen 35 respectively. The transistor is face bonded to the conductors of a printed circuit board 40 which contains a high thermal conductivity metal insert 46 to which the screen 35 is bonded to provide improved thermal radiation. The insert 46 may be arranged in contact with a heat radiator. The screen 35 is connected to a source of constant potential, e.g. ground, and if the transistor is operated in the common emitter configuration screen 35 may be connected directly to the emitter of the transistor. One or both of the insulating layers may comprise silicon nitride. In a transistor not intended for face bonding to a printed circuit, Fig. 1 (not shown), the solder layers are omitted and the collector electrode is applied to the N+ type substrate. In a junction isolated integrated circuit, Fig. 3 (not shown) a resistor (52) and a transistor (53) are covered by a common screen layer (56) comprising an aluminium layer (56b) covered with a layer (56a) of gold or solder. The invention may also be applied to PNP transistors, planar diodes, and mesa type devices.
Patent GB-737639-A (GB)
Title: Novel pyridine derivatives and process for the manufacture thereof
IPC: C07D213/81
Filed: 1953-11-04
Abstract: The invention comprises diacyl hydrazides of the formula <FORM:0737639/IV (b)/1> wherein R is an aliphatic, alicyclic, aromatic or heterocyclic acyl radical.  The compounds are prepared by reacting, preferably in pyridine at elevated temperature, a compound of the formula R1-NH-NH2 with an acid halide or anhydride of the formula R11-hal and R11-O-R11 respectively, one of R1 and R11 being the 2-methyl-isonicotinic acid radical and the other being an aliphatic, alicyclic, aromatic or heterocyclic acyl radical. Examples are given of the preparation of (1) N1-(2-methyl-isonicotinyl) - N2 - palmitoyl, lauroyl and 10-undecenoyl hydrazines from 2-methyl-isonicotinyl hydrazide and palmitoyl-, lauroyl- and 10-undecenoyl-chloride respectively; (2) N1-(2-methylisonicotinyl) - N2 - (1 - methyl - cyclohexane - (1) - carbonyl) - hydrazine in a similar manner to example (1); (3) N1-(2-methyl-isonicotinyl) - N2 - benzoyl hydrazine from 2-methyl - isonicotinyl hydrazide and benzoic anhydride and from benzoyl chloride; (4) N1-(2 - methyl - isonicotinyl) - N2 - (p - chlorobenzoyl) - hydrazine as in (1); (5) N1 - (2-methyl - isonicotinyl) - N2 - (furane - (2) - carbonyl] - hydrazine as in (1); (6) N1 - (2-methyl - isonicotinyl) - N2 - nicotinyl and isonicotinyl hydrazines as in (1) using the hydrochloride salts of the acid chlorides; (7) N1,N1-bis - (2 - methyl - isonicotinyl) - hydrazine in a similar manner to (6).  Also mentioned as acyl radicals represented by R in the above formula are 2-methoxy- and 2-ethoxy-isonicotinyl.