baber/WOPTO huggingface dataset:
Patent GB-1298124-A (GB)
Title: Transistor circuits
Inventor: ISHIGAKI Y
IPC: H04N9/66
Filed: 1970-04-29
Abstract: 1298124 Transistor amplifying and gating circuits; transistor detector circuits SONY CORP 29 April 1970 [1 May 1969] 20676/70 Heading H3T A circuit which may be used as a colour demodulator comprises a first pair of transistors, each having first second and third electrodes, means for supplying an input signal to the first electrode of each, a constant current source coupled to the second electrodes, an impedance element connected between a power supply and at least one of the third electrodes, coupling means coupling the second electrodes to each other, a second pair of transistors each having first second and third electrodes, the first electrodes being coupled together and the second electrodes being coupled to respective second electrodes of the first pair of transistors, and means for applying a control signal to the first electrodes of the second pair of transistors. Transistors Q1, Q3 has as common emitter load the collector-emitter path of transistor X1, while transistor X2 functions similarly for transistors Q2, Q4. The pairs of emitters are coupled together via a resistor 2, which may be replaced by a short circuit. A signal is applied in push-pull to the bases of transistors Q1, Q2 while the gating signal is applied to the bases of transistors Q3, Q4. The collectors of transistors Q3, Q4 may be returned direct to the collectors of transistors Q1, Q2 respectively (Fig. 3, not shown). In an application of the arrangement to a colour demodulator circuit for television, a pair of such circuits is used (Fig. 7, not shown), the gating signal for one circuit comprising a reference signal in phase with the subcarrier modulated by the red colour difference signal R-Y and the gating signal for the other circuit comprising a reference signal in phase with the subcarrier modulated by the blue colour difference signal B-Y. A green colour difference signal G-Y is derived from the red and blue colour difference signals by matrixing.
Patent GB-327077-A (GB)
Title: Improvements in or relating to foot propelled boats
IPC: B63H16/20
Filed: 1929-07-06
Abstract: 327,077. Davies, J. W., and MacLaren, G. July 6, 1929. Driving-arrangements for screw propellers. - In manually-operated propelling gear boats freely oscillated crank arms are mounted on each end of the driving shaft and are associated through free wheel clutches with a crank arm on the shaft which carries a main crown wheel geared to the propeller shaft. The free arms may have extensions that are linked together so that the power stroke of one lever helps to return the other lever. The main driving shaft 15 is mounted in central bearings 16 and in addition to a crown wheel 14 carries the centre portion 18<a> of an externally toothed one-way member 18 which is adapted to be driven by projections 15<b> on oscillatable arms 15<a> which are freely mounted on the shalt 15. The arms 15<a> have pedals 19 and also extensions 15<c> the ball ends of which talse into slots 20<a> in a cross lever 20 pivoted at 20<b>. Movement of one lever forwarily results in the cross member 20 assisting to return the other lever. The crown wheel 14 gears with a pinion 13 on the propeller shaft 11 which also carries a fly wheel 25. In an alternative form of return motion the extensions 15<c> are attached to opposite sides of an endless cord supported by spaced pulleys. The propelling mechanism is wholly enclosed by the floor boards 22 and the seats 3 may be made adjustable.
Patent GB-516318-A (GB)
Title: Improvements relating to the driving means of cycles and the like
IPC: B62M6/10
Filed: 1938-07-13
Abstract: 516,318. Cycle &c. driving - mechanism. ROBERTS, P. C. July 13, 1938, No. 20822. [Class 136 (ii)] Means for assisting the propulsion of cycles and like vehicles comprises an air motor consisting of a cupped or bladed rotor mounted on the crank axle within a casing to which air is admitted through a funnel-like member extending forwardly and upwardly and having a broad open upper end facing forwards, the rotor driving the road wheel either directly or through the usual chain transmission. In the form shown, a casing 1 is secured by stays 4 to the cycle frame, and contains a rotor 7 rotatably mounted by a sleeve 6 on the crank axle 5 and provided with a pulley 9, which is coupled by a belt 10 to a pulley on the rear wheel. Air enters through an opening at the upper end of a funnel 14, and escapes through an opening 16 at the rear of the casing 1. The rotor 7 constitutes a flywheel, and may be fitted with a clutch and brake.
Patent GB-723965-A (GB)
Title: Improvements in or relating to a method of standardising and mixing colours
IPC: G01J3/46
Filed: 1950-08-23
Abstract: 723,965. Standardizing and mixing colours. SYREENI, O. Aug. 23, 1950, No. 20909/50. Class 97 (1). A method of standardizing and mixing colours comprises determining the colour hue and intensity of a colour substance by mixing this colour substance with two known standard basic colours in such proportions as to form a softening brown of a determined intensity, thereby calculating the properties of the basic colours, bright yellow, bright red and bright blue in the colour substance and the intensity thereof, whereafter this colour is built up by mixing together the basic colours in the calculated proportions. Softening brown is the colour produced when yellow, red and blue coloured substances of equal intensity are mixed together. The binding up of the colour substance once determined may be carried out by mixing softening brown with the three basic colours or instead of the softening brown a grey colour, prepared by adding blue to the softening brown may be used. These three basic colours may be concentrated or diluted so as to have the same colour intensity when equal in weight.
Patent GB-629388-A (GB)
Title: Improvements relating to releasable connectors
IPC: H01H85/36
Filed: 1947-08-01
Abstract: 629,388. Friction grip fastenings. SWITCHGEAR & EQUIPMENT, Ltd., OXLEY, A. G. H., and OXLEY, D. A. J. Aug. 1, 1947, No. 20995. [Class 44] [Also in Groups XXIII and XXXVI] A releasable connector comprises an extension E7 which is moved towards and inserted in a holder G between jaws G<SP>4</SP> which are actuated by a spring G<SP>6</SP> pressing a piston G5 to cause the jaws to grip the extension E<SP>7</SP> which is released by moving it in the direction of insertion while the piston delays the return of the jaws allowing the extension to be rapidly withdrawn.
Patent GB-748615-A (GB)
Title: Improvements in or relating to the preparation of titanium metal
IPC: C22B34/12
Filed: 1953-07-29
Abstract: In a process for the production of Ti by the reaction of titanium halide with a reducing metal, the reducing metal is obtained-at a temperature at which it reacts with the halide-by electrolysis of a salt melt.  The reducing metal, e.g. alkali or alkaline earth metal, may be reacted directly in the electrolytic cell with titanium halide in the melt or with gaseous titanium halide in the space above the melt or may be transferred to a separate reaction chamber.  In one example, titanium tetrachloride at atmospheric pressure is passed into an electrolytic cell having as electrolyte a molten mixture of potassium-magnesium chloride and barium chloride at 680 DEG C.  After passage of current for some time, magnesium titanide is taken from the cell bottom and the magnesium is removed from this by (a) heating for 3 hours at 1000 DEG C. in a vacuum of 0,1 Torr or (b) leaching with 50 per cent acetic acid, washing and drying or (c) heating for 3 hours at 820 DEG C. in a salt bath such as that used for the electrolyte.  This latter separation can be caused in the cell itself during electrolysis by raising the temperature in the cell to 750 DEG -950 DEG C., the magnesium which separates reducing further titanium tetrachloride.  Reference has been directed by the Comptroller to Specification 698,151, [Group XXXVI].
Patent GB-464663-A (GB)
Title: Tobacco hopper for cigarette-making machines
IPC: A24C5/39
Filed: 1936-07-30
Abstract: 464,663. Tobacco-feeding apparatus. GROVES, W. W. (Universelle Cigarettenmaschinen-Fabrik J. C. Muller & Co.) July 30, 1936, No. 21130. [A Specification was laid open to inspection under Sect. 91 of the Acts, Feb. 4, 1937.] [Class 130] Tobacco on a feed roller 3 is compressed by tamping devices 5 which are raised by cams 9 and lowered by gravity and the tobacco in the spaces between the tamping devices is levelled by claws 13 on the periphery of rotating discs 12. The tamping devices are raised in succession or in groups and the claws engage the tobacco only when the adjacent tamping devices are raised.
Patent GB-636355-A (GB)
Title: Overhead conveyor
IPC: B65G17/20
Filed: 1947-08-05
Abstract: 636,355. Elevated conveyers. LANDAHL, E. E. Aug. 5, 1947, No. 21229. Convention date, Oct. 28 1940. [Class 104(ii)] A trolley unit for an overhead conveyer of the endless type comprises a casing 16 formed in two similar sections 16a, 16b secured together by bolts 17 and shaped to provide between them horizontal bosses 18 which receive stub axles 19 carrying rollers 20 arranged to travel over a track provided by the horizontal flanges of laterally spaced angle-bars 21, the vertical flanges of which provide guiding tracks for a lower roller 24 carried by a vertical axle 23 mounted in a boss 22 similar to the bosses 18. An upper roller 24 with its axle 23 aligned with that of the lower roller and in the same plane as that of the axles 19 of rollers 20 co-operates with upper guide channels provided at curved portions of the trackways. The casing 16 is hollow and provides an internal chamber with substantially spherical end portions which have outwardly flared holes 27 for the reception of connecting rods 15 between the trolley unit and similar units forming the endless conveyer. The ends of the connecting rods are formed with heads 30 to engage the flat inner faces of spherical bearing heads 28 within the casing, the flat faces being provided with annular grooves forming seatings for the ends of a helical compression spring 31. The vertical axle of the lower roller 24 may be extended downwardly to form a shank 35 constituting the upper portion of a hook or other carrier member.
Patent GB-361388-A (GB)
Title: Improvements in or relating to photography
IPC: G03F7/038
Filed: 1930-07-14
Abstract: 361,388. Photography by ultra-visible radiation. NAAMLOOZE VENNOOTSCHAP PHILIPS' GLOEILAMPENFABRIEKEN, 13D, Emmasingel, Eindhoven, Holland. July 14, 1930, No. 21292. Convention date, March 29. [Classes 98 (i) and 98 (ii).] Permanent images are obtained by the action of invisible rays having a smaller wave-length than that of visible rays on plates, films or papers sensitized with materials which are stable under visible light and air prior to, during or subsequent to the said action. Zinc sulphide deposited by volatilization in a vacuum gives a black image under X-rays or ultra-violet light. For use with ultra-violet light the use of the following sensitizing media is also described. (1) A gelatin plate soaked in a solution of sodium xanthogenate, or a coating from a colloidal gelatin solution containing lead xanthogenate. An image on the latter plate may be intensified with silver nitrate. (2) A coating from a colloidal gelatin solution containing lead chloride; or a coating of lead chloride by subliming in a vacuum. The contrast action may be intensified by development in mercury vapour. (3) A gelatin layer soaked in mercurous nitrate is insensitive to sunlight. A latent image may be produced by a shorter exposure under ultra-violet light and developed by ferrous sulphate, with or without silver nitrate. (4) A gelatin plate soaked in lead acetate. A latent image with a short exposure is developed with silver nitrate giving a silver-white colour. Further treatment with ferrous sulphate gives a red-brown image. In the Specification as open to inspection under Sect. 91 (3) (a) two other examples are included which do not appear in the Specification as accepted. (a) A gelatin layer soaked in a 5 per cent solution of potassium chlorate is differentially hardened under ultra-violet light : (b) a gelatin exposed to ultra-violet light within an atmosphere of ozone which may be supplied from the lamp itself.
Patent GB-1146264-A (GB)
Title: Method and apparatus for the rapid drying of animal and vegetable materials
Inventor: DIESTEL JOHANN JOACHIM
IPC: F26B17/10
Filed: 1967-05-08
Abstract: 1,146,264. Drying animal or vegetable material. NORDISCHER MASCHINENBAU RUD. BAADER. 8 May, 1967, No. 21370/67. Heading F4G. In apparatus for drying comminuted animal or vegetable material, the material is introduced through a hopper 12 into the centre of a drying chamber and conveyed therethrough to an outlet 3 by non-oxidizing heating gases which are so introduced as to provide concentric zones of rotating gases through which the material passes outwardly. The apparatus comprises cylinders 1, 5, 7, 9 having a tangential gas inflow aperture, 2, 6, 8, respectively, and being disposed telescopically relative to each other so as to leave between them annular conduits 13, 14, 15 through which the gases are introduced into the chamber.
Patent GB-684158-A (GB)
Title: Improvements in or relating to electric cooking ovens
IPC: F24C7/08
Filed: 1949-08-17
Abstract: 684,158. Retractive switches. BELLING & CO., Ltd., and BRUNTON, D. M. M. July 10, 1950 [Aug. 17,1949], No. 21390/49. Class 38 (v) [Also in Group VI] A switch for use in means for illuminating the interior of an electric oven comprises an operating rod q ringed forward by a spring v and carrying a washer w which engages contacts s mounted on an insulating block t. The rod q projects beyond the front of the oven so that on closing the door oven the switch is opened against the action of spring v.
Patent GB-649858-A (GB)
Title: Improvements in or relating to handbags
IPC: A45C7/00
Filed: 1948-08-13
Abstract: 649,858. Variable capacity bags. MULLER, J. Aug. 13, 1948, No. 21414. [Class 133] In a shopping-bag which can be folded into a hand-bag of smaller capacity, the outer surface of one wall of the shopping- bag is partially covered with leather or like material whereby the folded hand-bag is completely covered externally by such material. As shown in Fig. 1, a shopping- bag comprises two strips 3, 4 of canvas or other foldable textile fabric secured at their edges 5, 6, 7, the strip 3 being partially covered by a sheet 11 of leather leaving uncovered portions 12, 13. The strip 4 carries an inner pocket 14 closed by a sliding clasp fastener 15, the pocket having substantially half the area of the sheet 11. The portions 12, 13 may be folded inwardly along lines 18, 19, and the bag folded upon itself along the minor axis of the sheet 11 to produce a hand-bag, as shown in Fig. 2. The bag is secured in this latter condition by press studs 20, and a flap 21 on the sheet 11 engages in a slot 22.
Patent GB-290080-A (GB)
Title: Improvements in coin controlled machines for dispensing or vending liquids
IPC: G07F13/02
Filed: 1927-08-15
Abstract: 290,080. Starkey, L. P. Aug. 15, 1927. Delivery of liquids. - A coin-controlled liquid-vending machine 1, Fig. 1, comprises a pumping mechanism 3, 4, adapted to feed liquid from a supply source 6, Fig. 4, to a distributing-container 8, and the pumping system being started by the insertion of a coin and stopped automatically when a predetermined quantity of liquid has been fed to the container. The pump 4 delivers liquid from the tank 6 to the container 8, the quantity of liquid for vending being regulated by the height at which the overflow pipes 15 are adjusted. Coin action, electric-connection.-A coin inserted through a slot 33 is retained between springs 24, 24<1>, Fig. 10, in a tube 23 and completes an electric circuit to start the motor 3 and pump 4. Coin-discharging mechanism.-When the requisite quantity has been pumped in a float rises and moves links 20, 21 to turn a cam 22 to release the pressure on the spring 24 and free the coin 25 to stop the pump. The delivery cock 10<1> is opened by a handle on a spindle 12. If the cock is opened before pumping has ceased them bevel gearing 30, 31 on the spindle 12 operates a cam 22', Fig. 10, to release the pressure on the spring 24 to free the coin and stop the pump. Fraud, preventing.-The coin slot 33, Fig. 5, is gapped on to the underside and is provided with a bent rod 32 to retain coins having central hole or washers. Coin-slot closing-devices.-When the liquid in the tank 6 falls below a predetermined level contacts 41, 43 separate and break the eiectric circuit to electromagnets 47, Fig. 5, whereby the block 49 falls and closes the coin-slit.
Patent GB-358981-A (GB)
Title: A process for the compression of coal cakes
IPC: A41C1/00
Filed: 1930-07-16
Abstract: 358,981. Moulding coal blocks. NAAMLOOZE VENNOOTSCHAP SILICA EN OVENBOUW MIJ, 17, Raamweg, The Hague.-(Assignees of Otto & Co., Ges., Dr. C.; 9, Christstrasse, Bochum, Germany.) July 16, 1930, No. 21549. Convention date, July 16, 1929. [Class 87 (ii).] Coal cakes of 4-5 metres in height and of about half a metre in thickness are made by delivering coal from a hopper a through distributors b and a shoot c to a mould comprising a floor f<1>, side members, and detachable ends #<2>, #<3>, the mould being mounted on a wheeled carriage with provision g for the transverse movement of the mould on the carriage. The mould is positioned under the shoot c and successive charges of coal are rammed by hydraulic tampers q whose ramming heads are concave and extend substantially over the whole area of the mould. The mould with the rammed block is transported by the device g into the furnace and the ends #<2>, #<3> are detached, whereupon the remainder of the mould is withdrawn. The ends f<2>, f<3> are then removed and the furnace doors replaced.
Patent GB-662905-A (GB)
Title: Improvements in gear sets
IPC: F16H1/22
Filed: 1949-08-19
Abstract: 662,905. Toothed gearing; shaft couplings. THORNTON, A. A. (Falk Corporation). Aug. 19, 1949, No. 21592/49. Classes 80 (i) and 80 (ii) A gear unit is designed so that the torque transmitted is equally divided between six or, in a modification, twelve lay shafts. The gear housing comprises parts 10, 11 bolted together and supporting therebetween a disc 13. A low-speed shaft 14 carries an annular gear 17 meshing with six equally spaced pinions 18. These pinions are carried by shafts 19, preferably hollow, journalled in the disc 13 and housing 11, and alternate shafts 19 carry three gears 22, forming a symmetrical group in one plane, and three gears 22<SP>1</SP> in another plane. The groups of gears 22, 22<SP>1</SP> have simple helical teeth, the helices for the two groups being of equal angle but opposite hand, and mesh with coaxial pinions 24, 24<SP>1</SP> carried by high-speed floating shaft 23, which is preferably hollow and is coupled through teeth 25 to a member 26. In a modification, Fig. 2 (not shown), double helical gears are used throughout, the two coaxial high-speed pinions being carried by separate floating sleeves connected to the highspeed shaft by a rocking-pin coupling similar to that shown at 72 in Fig. 3. The gear unit shown in Fig. 3 has twelve lay shafts 59 each carrying a gear 58 meshing with an annular gear 57 secured to a low-speed shaft 54, and four groups of helical gears 62, 621, 64, 641. The shafts 59 are journalled in a disc 53 and in a ring 60 formed on a structure 61 bolted to the disc 53. The groups of gears are symmetrically arranged, six at each end of the set of shafts 59, around a high-speed shaft 68 and mesh with helical pinions 63, 63<SP>1</SP> and 65, 65<SP>1</SP> formed in pairs on floating hollow shafts 66, 67. A plurality of pins 72 rockably seated in a collar on the shaft 68 rockably engage flanges 74 on the hollow shafts 66, 67 to form a flexible coupling between the shafts 66, 67 and 68. Each gear 62, &c. is adjustably secured to the shaft 59 by a clamping device comprising a tapered seat 76 on the shaft, tapered surfaces 77, 81 on the hub 78 of the gear, and a tapered clamp ring 79 splined to the shaft. The ring is fixed to a head 82 having a stem 83 within the shaft 59 and may be tightened by a nut 84.
Patent GB-1040270-A (GB)
Title: Bucket-wheel loader
IPC: E02F3/18
Filed: 1965-05-21
Abstract: 1,040,270. Bucket wheel excavators. BETEILIGUNGS-UND PATENTVERWALTUNGSGESELLSCHAFT. May 21, 1965 [May 23, 1964], No. 21653/65. Heading E1F. The axis of rotation of the bucket wheel of a bucket wheel loader for removal of piled material at a storage yard is disposed obliquely to the longitudinal axis of an associated supporting jib pivotal about a vertical axis.
Patent GB-193072-A (GB)
Title: Improvements in means for recording sounds
IPC: G11B7/00
Filed: 1921-08-16
Abstract: 193,072. Forest, L. de. Aug. 16, 1921. Modulating systems and apparatus.-Apparatus for recording sound photographically comprises a lamp to which high or super-audio frequency oscillating current is supplied, the intensity of the light being varied by and in accordance with the sound waves without varying any other characteristic of the light source, such as its size or shape. In the arrangement shown, an arc lamp 52 is provided, to which high-frequency current is supplied from a thermionic generator 60 of known construction. In this device, condensers 66 are shunted around a transformer coil 64 (the other winding of which is connected to the lamp electrodes), and a connection 67 is provided as shown between these condensers and the filament 63. The sounds to be recorded affect a microphone (not shown), producing alternating or pulsating currents which, acting through an amplifier 90 and a transformer 91 connected as shown to the oscillation generator, modulate accordingly the high-frequency currents passing through the lamp. Specification 157,441, [Class 40 (ii), Phonographs &c.], is referred to.
Patent GB-181670-A (GB)
Title: Improvements in reheating furnaces
IPC: C21D9/70
Filed: 1921-08-16
Abstract: 181,670. Stein & Atkinson, Ltd., (Assignees of Soc. Anon. des Appareils de Manutention et Fours Stein). June 16, 1921, [Convention date]. Metal - heating furnaces.-In a continuous re-heating furnace in which the water-cooled ingot tracks 4 are supported on pillars 6 or arches, and are arranged opposite the burner posts 11, supplementary supports 19 of magnesia or other refractory material are provided at the discharge end of the furnace, and are arranged out of alignment with the ingot tracks, so that the portion of the ingots previously in contact therewith will be subjected to the direct action of the flames. A ledge 22 at the discharge end is provided beneath the level of the tracks to receive scale scraped from the ingots. The waste gases leaving the furnace pass through a recuperator with vertical heating-passages for the air.
Patent GB-811308-A (GB)
Title: Improvements relating to fabrics
IPC: D03D15/56
Filed: 1955-07-28
Abstract: 811,308. Elastic fabrics ANSONIA. MILLS Inc. July 28, 1955 [Sept. 2, 1954], No. 21775/55. : Class 142(4). A one-way stretch fabric has a smooth reverse side formed of inelastic warp threads 5 and covered elastic weft threads 6, and has slip resisting ribs 7 on the face side formed of floated bare rubber weft threads 10.
Patent GB-940226-A (GB)
Title: Improvements in protective hoods for motor driven hand tools
IPC: B24B55/05
Filed: 1962-06-06
Abstract: 940,226. Machinery guards. ROBERT BOSCH G.m.b.H. June 6, 1962 [July 12, 1961], No. 21834/62. Heading F2J. A guard for a power driven hand tool such as a grinding wheel comprises two parts 14, 19 the former 14 being clamped to a stationary part 10 of the tool and having a peripheral flange 16 over which a complementary flange 20 of the other part 19 is detachably retained by a screw 18 and spring pressed pins 23.