baber/WOPTO huggingface dataset:
Patent GB-464689-A (GB)
Title: Improved process of and apparatus for moulding concrete conduits, posts or other channelled bodies
IPC: B28B21/20
Filed: 1935-10-22
Abstract: 464,689. Moulding concrete conduits &c. GRIBLING, P. Oct. 22, 1935, No. 29101. [Class 87 (ii)] [Also in Group X] Conduits, tubular posts, or other channelled bodies are produced continuously by means of one or more cores comprising rubber tubes dilated by fluid pressure and a guide for the cores which is displaced longitudinally during the casting of the concrete, the concrete being vibrated by means of a device on the guide or within the tube or in both places. The conduit &c. is formed in shuttering 4, 5 and the guide comprises a rectangular box 2 resting on the mould bottom and positioned laterally by spring blades 6, 7. The box 2 is rigidly connected to a cylinder 8 which supports the rubber tube 9. As the concrete 12 is poured in, the guide is displaced in the direction of the arrow 10. A vibrating device is mounted on the guide 2. When forming reinforced conduits, Fig. 7, a helical reinforcement 14 is laid on a bed of fresh concrete, and the guide comprises an outer tube 2 sliding in the reinforcement and an inner tube 8 which supports the core. The guide may be displaced by means of a cable 1<k>. A smoothing tool 16 may be provided which runs on the upper edge of the shuttering on rollers 17. In the case of a multiple conduit the guide comprises a number of tubes connected together and may rest on springs or a rubber plate to increase the vibrating effect. A cylinder containing a vibrating device may be arranged inside the rubber core and the device may produce a longitudinal component of the vibrating force which automatically displaces the device in the core. In a modification, Fig. 13, the vibrating device 20 is mounted in a cylinder 19 within the tube 9 and fluid under pressure is admitted between the end 22 of the tube and the end 21 of the cylinder through pipes 24<a> so as to displace the cylinder 19, a valve 26 being provided in the other end 23 of the tube. The ends of the tube 9 are closed by conical caps of cruciform section to provide watertight joints. The tube 9 is resilient so that when the fluid pressure is released the tube contracts and can then be easilv withdrawn from the moulded article. As shown in Fig. 15, the guide 8 is mounted on rollers 30 and carries a head plate 31 connected to double-acting pistons 33 which are operated to displace the guide. The rollers 30 may be replaced by a slide 30<a> having a forward roller 30b. In another modification the vibrator within the core may be electric or pneumatic and in the latter case the exhaust may provide the necessary fluid pressure for displacing the vibrator.
Patent GB-909043-A (GB)
Title: Improvements relating to milling cutters for generated gears
IPC: B23F21/12
Filed: 1960-08-23
Abstract: 909,043. Gear-cutting. GLEASON WORKS. Aug. 23, 1960 [Sept. 24, 1959], No. 29122/60. Class 83 (3). A disc cutter 10 (11) for milling gears comprises blades having tip-cutting edges 14 (15) equidistant from the cutter axis, every third blade 10-C (11-C) having side-cutting edges, for finish-cutting the teeth, disposed on a common surface of revolution about the cutter axis 12 (13) the side edges of the other blades 10-E, 10-D (11-D, 11-E) being inset from the finishing edges. The cutter is of the intermeshing sort for cutting straight bevel gears, as described in Specification 772,237. The sidecutting edges lie on a plane or conical surface according to whether straight or crowned teeth are desired. During cutting, a plunge-cut is taken by moving the gear centre from 22<SP>1</SP> to 22<SP>11</SP>, Fig. 2, a generating motion then takes place while the cutters move to their lower positions, the gear is fed into its full-line position (centre 22) and the gear is rolled back to finish-cut the teeth. During this cut, only one finishing blade is in the cut at a time. The gear is then withdrawn and indexed.
Patent GB-1185243-A (GB)
Title: Temperature Averaging System
Inventor: LINDBERG JOHN EMERY
IPC: G01K3/02
Filed: 1967-06-23
Abstract: 1,185,243. Semi-conductor devices. J. E. LINDBERG. 23 June, 1967 [14 July, 1966], No. 29210/67. Heading H1K. [Also in DivisionG1] The average temperature along a path is determined by an elongated temperature-sensitive resistor 2, e.g. of nickel, comprising the core of a sheathed cable 1 whose dielectric 4 of semiconductor material or a metallic salt is an insulator except at high temperatures, when the drop in resistance between the core and sheath acts as a fire alarm.
Patent GB-811148-A (GB)
Title: Improvements in or relating to electric lighting fittings, more particularly those for downward beam illumination
Inventor: HOUNSLOW RONALD ALBERT
IPC: F21V17/00
Filed: 1955-10-13
Abstract: 811,148. Lighting fittings. FALK, STADELMANN & CO. Ltd. Jan. 14, 1957 [Oct. 13, 1955], No. 29216/55. Classes 75(3) and 75(4) An electric light fitting especially for overhead lighting comprises a tubular carrier upon which a tubular body is telescopically slidable, one or other of these members being formed with an outwardly directed fastening means whereby the fitting may be secured over an opening in a ceiling or like support. In the form shown, the body 1 carries at the upper end a reflector formed of a part ellipsoid 3 at one focus of which the light source is situated and a part spherical annulus 4, and is provided with leaf springs 10 which engage a groove 11 in the carrier 9 which has at the lower end an outwardly directed flange for securing to a ceiling. Alternatively the body 1 may have a flange 8 for this purpose, the carrier 9 being then used to support stops, colour screens or filters or projection lenses to enable the lighting effects to be varied. The lamp may be supported by an angle bracket carried on an outwardly directed lug on the body 1 the bracket being reversible to enable lamps of different sizes to be centred. Fig. 3 shows a tube 13 for carrying lenses or filters mounted for angular adjustment in a part-spherical flange 15 which may be mounted in the carrier 9.
Patent GB-1482620-A (GB)
Title: Thermal battery and method of manufacture
Inventor: SHEVCHENKO DMYTRO
IPC: H01M6/48
Filed: 1971-06-22
Abstract: 1482620 Thermal batteries CATALYST RESEARCH CORP 22 June 1971 29248/71 Heading H1B A thermal battery comprises a wafer having a V 2 O 5  layer and an electrolyte layer arranged between two nickel electrode plates, the V 2 O 5  layer of the wafer engaging a V 2 O 5  glaze on one plate and the electrolyte layer engaging a Ca or Mg coating on the other plate. The plates may be made by etching a nickel strip with acid, coating one part 5 with a glaze containing V 2 O 5  and another part 6 with Ca or Mg, and cutting out plates 10, 11 which may be joined by tendons 12. The glazing mixture may contain V 2 O 5 , boric acid or sodium metaphosphate, and acetone, acetone-alcohol, or toluene-alcohol. The electrolyte layer may consist of KCl-LiClkaolin.
Patent GB-849932-A (GB)
Title: Purification of silicon tetrahalides such as silicon tetrachloride
IPC: C01B33/08
Filed: 1957-09-17
Abstract: Vaporous silicon tetrahalide, e.g. silicon tetrachloride or bromide, is purified by contact with sodium, aluminium, or zinc of large surface area to volume ratio.  The metal may be porous or finely divided.  Zinc may be in the form of mossy zinc and may be employed at a temperature of 150-415 DEG C., preferably 320-385 DEG C. Silicon tetrachloride vapour may be passed up through a fused quartz column containing mossy zinc at a temperature of 370 DEG C. The purified vapour may be reduced to produce silicon having a resistivity of greater than 100 ohm cm.
Patent GB-700264-A (GB)
Title: Improvements in or relating to devices for superposing currents of audio-frequenciesin an electrical energy distribution network
IPC: H02J13/00
Filed: 1951-12-13
Abstract: 700,264. Signalling over power circuits. COMPAGNIE POUR LA FABRICATION DES COMPTEURS ET MATERIEL D' USINES A GAZ. Dec. 13, 1951 [Dec. 27, 1950], No. 29264/51. Class 40 (4). In an arrangement for injecting audiofrequency currents into a power distribution network including reactances 2 and 8 for the limitation of short-circuit and transient currents, the secondary winding of the injection transformer 14, 16 is connected to the feeders 2, 9 across the terminals of the appropriate reactance. The output from the signalling oscillator 20 is keyed to line 3 by a key 18 and a condenser 21 in effecting power factor correction minimises the current taken. The audio-frequency equipment is protected by a fuse or circuit-breaker 15 and by a condenser 23 in series with the oscillator.
Patent GB-533624-A (GB)
Title: Improved faucet, bib cock or the like
IPC: F16K1/50
Filed: 1939-11-03
Abstract: 533,624. Valves. CAZENAVE, F. Nov. 3; 1939, No. 29289. [Class 135] A manually-operated draw-off valve having a conical valve member 6 co-operating with a sharp-edged seat 5 has a stem 6 extending from the lower face of the valve member formed integrally with a disc 13 guided for endwise movement in a tubular part of the casing. The disc has one or more grooves co-operating with guide ribs 18 and is acted upon by a spring 15 bearing against a detachable cap 16. The valve member is rotatably connected to an actuating spindle 7 having a screw-thread 9 working in a nut member screwed into the main casing and provided with a packing 11 for the spindle.
Patent GB-484156-A (GB)
Title: Improvements in or relating to strip mills and a method of rolling metal strip
IPC: B21B1/36
Filed: 1936-10-28
Abstract: 484,156. Rolling strip metal. STEVENS, A. H. (United Engineering & Foundry Co.) Oct. 28, 1936, No. 23293. [Class 83 (iv)] In rolling metal strip back and forth through a mill, end wastage is prevented by passing the strip completely through the mill under a back tension applied from the start to end of the rolling by means of brake blocks 31. The brake blocks 31 also act initially to close on the first free end of the strip led from the coil 5 when it projects sufficiently and push it between the rolls when the braking frame is rocked about its pivot 44 by a fluid pressure piston 39. The blocks 31 are closed to grip or tension the strip by a hydraulic piston 32 or an electromotor. Thereafter the tensioning may be applied by a brake on the unwinding drum-shaft. On emerging from the mill the leading end is guided by strippers similar to 48, 49 and through similar brake mechanism on the other side of the mill. When the trailing end of the strip has just passed through the mill the brake blocks 31 on that side are closed on it but the pull of the drum on the strip causes it to rock the brake mechanism against its fluid cylinder 36 ; the roll pass is then adjusted, the roll rotation reversed the brake grippers are rocked back to re-enter the strip into the mill, which passes through as before, the mechanism on each side being duplicated. The strip is engaged in a slot 15 in the drum closed up by a multiple wedge-acting clamp bar 16. Specification 472,018 is referred to.
Patent GB-275841-A (GB)
Title: Improvements relating to telephone receivers
IPC: H04R1/10
Filed: 1926-11-22
Abstract: 275,841. Kiernan, G. Nov. 22, 1926. Head sets.-A wireless head-set, of the type in which the earpieces are so mounted that only a limited turning movement is permitted, is characterized by the provision of a series of recesses or indentations in the slidable rods carrying the earpieces, so as to allow of a wide range of vertical adjustment relatively to the head-band. As shown in Fig. 1, a clamp 2 carried by the head-band 4 is grooved to engage loosely a rib 3a formed on the rod 3 carrying one of the earpieces 1. Or the positions of the groove and rib may be reversed. The clamp carries a spring-pressed pin 2c which normally engages one of a series of grooves or depressions 3b formed on the rod. The pin 2c may be withdrawn from the grooves by rotating the head of the pin so that a projection 2d engages a cam-surface 2f; or an ordinary screw clamping-pin or other equivalent device may be used. A scale may be provided to gauge the vertical setting as shown in Fig. 4. Alternatively provision may be made for allowing a slight lateral swing of the earpiece, either by fitting projections 9. Fig. 11, on the earpiece carrier 1a which co-operate with the rib 3a, or by inserting a hinged or turnable connection 10, Fig. 14, working in a limited slot between the clamp 2 and the end of the head band 4.
Patent GB-600229-A (GB)
Title: Automatic rudder trim control for aircraft (electrically operated)
IPC: B64C17/00
Filed: 1945-11-06
Abstract: 600,229. Automatic control systems for aircraft. RALPH, F. A. O. Nov. 6, 1945, No. 29441. Drawings to Specification. [Class 38 (iv)] In order to maintain an aircraft automatically in level straight flight or a correctly banked turn, rudder trim is controlled by a metal ball free to move along a pair of inversely arched conductor rails arranged athwartships. One rail is divided into insulated segments and each half of it is associated with a tapped resistance in series with an electric motor. The rails act as a double rheostat and the arrangement is such that with the ball central neither motor is energized, but on movement of the ball, when the flight condition deviates from that desired, the appropriate motor adjusts trim through rachet gearing. Motor torque is dependent on the extent of the deviation. A second similar set of rails above the first and stop blocks at the ends of the rails act as a retainer for the ball.
Patent GB-1173152-A (GB)
Title: Estimation of Sulphate Ion
Inventor: SHERWIN KENNETH ARTHUR
IPC: G01N21/82
Filed: 1966-07-01
Abstract: 1,173,152. Estimating sulphate ion. FISONS FERTILIZERS Ltd. 13 Sept., 1967 [1 July, 1966], No. 29559/66. Heading B1X. Sulphate ion in wet process phosphoric acid slurries is estimated by a process comprising mixing in chamber 1 the slurry, which is fed at a constant rate through line 3, with a liquid reagent capable of forming a precipitate with sulphate ion, which reagent is fed at a variable and pulsating rate through line 6, withdrawing the reaction mixture from chamber 1, detecting by means 7 and 9 whether or not fluctuations occur in a physical characteristic dependent on the reaction of sulphate ion with the reagent, for example in the turbidity of the reaction mixture, controlling the rate of supply of the reagent through line 6 in response to fluctuation detection means 9, and noting the rate of supply of reagent at which the fluctuations disappear. The reagent exemplified is an aqueous solution of barium chloride; also mentioned are solutions of other salts of Ba and of Pb, Sr. There is a reference to measurement of heat of reaction instead of turbidity.
Patent GB-631244-A (GB)
Title: Improvements in or relating to laundry driers, and method of drying laundry
IPC: D06F58/26
Filed: 1946-10-04
Abstract: 631,244. Laundry driers. HAMILTON MANUFACTURING CO. Oct. 4, 1946, No. 29618. Convention date, Nov. 5, 1945. [Classes 34(i) and 34(ii)] The products of combustion from an adjacent gasfired combustion chamber are drawn through the drying chamber by mechanical means connected to the lower part thereof, and a flue connected with the combustion carries off these products when the mechanical means are rendered inoperable. In the preferred embodiment an outer rectangular casing 10 contains an inner lagged chamber 13 surrounding a rotatable perforated tumbler drum driven by a motor 17. A lagged combustion chamber 23 contains a gas burner 25 supplied with air from openings 42, 43, which is pre-heated by contact with the lagged walls. A fan 35 draws combustion gases through openings 30 downwardly through the drum and exhausts it through a base opening 31, a lint collector 36 and an outlet 34. When the fan is stopped a flue 40 provides sufficient draft to draw cool air upwardly through the drying chamber from a front opening 38. A thermostat 41 controls the burner gas supply. In a modification the burner is outside and adjacent the combustion chamber and the flue is adjacent the burner.
Patent GB-1253370-A (GB)
Title: Benzodiazepine derivatives, salts thereof, and processes for making them
IPC: A61K31/55
Filed: 1969-06-11
Abstract: 1,253,370. Benzodiazepine derivatives. SUMITOMO CHEMICAL CO. Ltd. 11 June, 1969 [13 June, 1968; 1 July, 1968], No. 29695/69. Heading C2C. Compounds of the general formula (R=C 1-4  alkyl; X, Y=H, halogen, NO 2 , CF 3 ) and their salts are prepared by (a) reacting a compound of the formula or metal derivative thereof with a reactive ester of a compound of the formula or (b) reacting a compound of the formula or salt thereof with an oxidizing agent, optionally followed in either case by salt formation. These compounds are tranquillizers, musclerelaxants and hypnotics.
Patent GB-1319088-A (GB)
Title: Method of manufacturing multi-element magnetic head
IPC: G11B5/187
Filed: 1970-06-18
Abstract: 1319088 Magnetic heads MATSUSHITA ELECTRIC INDUSTRIAL CO Ltd 18 June 1970 [23 June 1969] 29724/70 Heading G5R A multi-element magnetic head unit is constructed by joining two magnetic oxide core sections 4, 5 through a gap spacer, 6 as in Fig. 1a, removing the lower portions of the sections, and cutting a series of slots 8 extending into the spacer thereby to produce the structure shown in the upper part of Fig. 1b; shielding plates 10 with non-magnetic strips 9 are then fixed in slots 8, yokes 12 with coils 11 are joined to the oxide parts 7, and the arrangement is potted and cased, as in Fig. 1d (not shown). The assembly is then ground/lapped until the plates 10 and strips 9 are exposed and, while observing in the directions A, A<SP>1</SP>, grinding/lapping is continued until the desired reduced gap depth size has been achieved.
Patent GB-1035369-A (GB)
Title: Improvements relating to tape or wire recorders
IPC: G11B15/30
Filed: 1963-07-26
Abstract: 1,035,369. Feeding record tapes and wires. Y. MARUKAWA and Y. SARUYAMA. July 26, 1963 [Aug. 3, 1962], No. 29727/63. Heading G5R. Record/playback 29 and rewind 35 buttons (Fig. 5, not shown) each act to remove a brakepad 14 from a take-up reel-carrier b, Fig. 2, the pad 14 being mounted on a rocker 13 pivoted at 11 and normally urged into engagement by a helical spring 17, Fig. 4, wound around the pivot rod 11, the brake retraction movement occurring in a plane transverse to the plane of the feed c and take-up b reel-carriers. A motor 22, Fig. 3, is normally urged by a spring 28 such that its shaft 24 drivingly engages the carrier b to drive the tape for record/ playback and a collar 25 on the motor shaft may be engaged with the carrier c for (faster) rewind by depressing button 35. Depression of either of the latchable buttons 29, 35 energizes the motor to run in the required direction (Fig. 7, not shown) and a stop button S releases either of the buttons 29, 35 and the spring 17 reapplies the brake. To prevent tape spillage and provide backtension during record/playback, a roller d, Fig. 2, is urged by a spring 8 against the feed-spool carrier c.
Patent GB-828331-A (GB)
Title: Improvements in or relating to x-ray apparatus
IPC: H05G1/48
Filed: 1956-10-01
Abstract: 828,331. Automatic regulation for X-ray tubes. PHILIPS ELECTRICAL INDUSTRIES Ltd. Oct. 1, 1956 [Oct. 4, 1955], No. 29851/56. Class 38 (4). Fluctuation of the heater current of an X-ray tube due to voltage drop in the supply mains when the H.T. supply is switched on is reduced by a booster transformer responsive to total load current, this transformer also serving to adjust the voltage applied to the H.T. transformer. One winding 16 of the booster transformer 15 is connected between the mains 1, 2 and the input to an auto-transformer 4. The other winding 14 of transformer 15 is connected in series between an adjustable output tapping 12 on thea uto-transformer 4 and the primary of the tube heater transformer 20. By moving the tapping 12 either side of the fixed input tapping 13 the current in winding 14 either boosts or bucks the mains voltage applied to the auto-transformer 4, and so enables the voltage applied from a fixed tapping on transformer 4 to the tube H.T. transformer 5 to be initially adjusted. In addition, on closing the H.T. supply switch 7, the load current in winding 16 boosts the heater transformer supply to compensate for the voltage drop in the supply mains, and in resistance 18. This resistance 18 enables the supply voltage drop to be matched to the boost voltage.
Patent GB-1472636-A (GB)
Title: Arrangements of optical waveguide fibres
IPC: G02B6/38
Filed: 1974-07-05
Abstract: 1472636 Fibre optic connectors CORNING GLASS WORKS 5 July 1974 [5 July 1973] 29883/74 Heading G2J Two fibre bundles 24, 25, Fig. 2, having equal numbers of fibres of equal diameters are joined by having their end portions confined in connecting members 21, 22 each of which has an aperture 23 which is a mirror image of the other. The centres of the ends of any three contiguous fibres lie at the vertices of an equilateral triangle and the connecting members are of such form and dimensions as to confine the fibres in the smallest cross-sectional area possible. The apertures 23 may be shaped as regular hexagons (as shown), equilateral triangles or 60/120 degrees parallelograms. In the modified arrangement of Fig. 3, the connecting members are ferrules 36, 37 with tapered entrances 41, 42 to assist insertion of the bundles after which they are secured in place by epoxy 43 and ground to produce flat end-faces which are held in contact by threaded members 45, 46 cooperating with a threaded sleeve 47.
Patent GB-617586-A (GB)
Title: Improvements in or relating to tumbling barrels
IPC: B02C17/06
Filed: 1946-10-08
Abstract: 617,586. Tumbling-barrels. BERNSTIEL, E. Oct. 8, 1946, No. 29964. [Class 60] A tumbling-barrel of metal comprises a tubular shell 1 externally welded at each end to a closing head-portion 5, 6 which is adapted to be connected to a complementary member. Several compartments of this construction may be releasably connected together by bolts 11 passing through holes 10 in projecting flanges formed by the head-portions 5, 6. Each compartment or series of compartments may be releasably connected at each end by discs to trunnions for support. If more than three tumbling-barrels are connected together additional support may be provided in the form of a shaft, mounted on a plummer block on a carrier and releasably connected with compartments on each side by discs (not shown).
Patent GB-1002037-A (GB)
Title: Ferromagnetic armature for an electromagnetic recording or measuring apparatus
Inventor: ASTER HERMAN
IPC: G01R5/14
Filed: 1961-08-19
Abstract: 1,002,037. Electric measuring instruments. PRESNA MECHANIKA,NARODNY PODNIK. Aug. 19, 1961, No. 30006/61. Drawings to Specification. Heading G1Q. A rotatable armature for electromagnetic measuring or recording instruments comprises a bar of ferromagnetic material having in it at least one gap extending through the whole thickness of the armature, the gap being filled with a non-ferromagnetic material. The gap extends transversely across the armature with respect to the general direction of the lines of force which will pass through the armature from a surrounding magnetic field when the armature is in a zero position. This arrangement is said to eliminate hysteresis effects so that in the absence of a disturbing field the armature returns to its zero position.