baber/WOPTO huggingface dataset:
Patent GB-1379609-A (GB)
Title: Methods of and apparatus for stabilising
IPC: H04N5/32
Filed: 1971-12-29
Abstract: 1379609 Monitoring light source intensity variations DR-ING RUDOLF HELL GmbH 29 Dec 1971 [28 Dec 1970] 60562/71 Heading G1A [Also in Divisions G3 and H4] In an arrangement for stabilizing the intensity of a light beam from a source 1 having a fluctuating light intensity output, a transducer 16 derives a signal representing the intensity fluctuations, the light beam is passed through a polarizer 9 and polarization analyser 18 and the signal from transducer 16 either rotates the plane of polarization of the light beam via Pockel effect device 10 or, if device 10 is omitted, rotates the polarization analyzer (21), Fig. 2 (not shown). The light beam scans a picture original 5, passes through a colour separation filter 8, and is photo-electrically detected at 19. The polarizer 9, Pockel effect device 10 and polarization analyzer 18 may be placed between the beam splitter 14 and picture original 5 Fig. 3 (not shown), or between the source 1 and beam splitter 14 Fig.4 (not shown).  Source 1 may be a xenon lamp or laser.
Patent GB-1291730-A (GB)
Title: Process and apparatus for producing in a high vacuum a thin, self-supporting disc from a material which is gaseous at room temperature, e.g. hydrogen
IPC: B23K26/12
Filed: 1969-12-16
Abstract: 1291730 Solidifying gases INSTITUT FUR PLASMAPHYSIK GmbH 16 Dec 1969 [16 Dec 1968] 61307/69 Heading F4P [Also in Division H1] A thin disc of solid hydrogen, for use as a pulse laser or particle radiation target, is prepared by solidifying hydrogen within an orifice 36 in a metal plate 34. The plate is fixed to a copper black 20 cooled by liquid helium in a cooling coil 22 and is positioned within a vacuum chamber 10 which may be evacuated by a diffusion pump. To form the disc the chamber is first evacuated and a cup-shaped member 46 placed over the plate 34 and block 20, and hydrogen gas is introduced into the space enclosed via a part 44. Liquid helium is then passed through coil 22 and hydrogen condenses on the plate and forms a liquid film in orifice 36 which is slowly solidified. The cup member 46 is then withdrawn, the residual hydrogen gas pumped away, and the disc may be irradiated through lenses 50. The orifice 34 is open at one side to allow measurement of the thickness of the disc. Solidifiable gases other than hydrogen may be used, as well as coolants other than helium.
Patent GB-676490-A (GB)
Abstract: 676,490. Ribbon looms. NAAMLOOZE VENNOOTSCHAP MACHINEFABRIEK BREDA VOORHEEN BACKER EN RUEB. July 24, 1950 [July 27, 1949], No. 18430/50. Class 142(ii) The slay is made from sheet metal bent to channel section, the guides for the shuttles 3 and the shuttle driving racks 8 being attached to the vertical web 1. Specification 676,491 is referred to.
Patent GB-733331-A (GB)
IPC: B65D6/22
Abstract: 733,331. Knoch-down boxes. HOLMES, W. April 9, 1951 [April 9, 1950], No..8844/50. Class 18. A knock-down box has two opposite sides 5, 6 hinged to the bottom, the other two sides 3, 4 and lid 2 being removable, some of the members being grooved to receive the others. As shown, the top and bottom are grooved, to receive the sides and the sides 5, 6 are grooved to receive the sides 3, 4. Rubber &c. strips may be fitted in the grooves to give hermetic sealing. Bolts 14 hold the case erect and shorter bolts are used to secure the collapsed box in which the sides are held between the base and lid. Strengthening battens may be fitted to the sides. In an alternative form the base and lid may have ribs entering grooves in the sides and one pair of sides may have ribs entering grooves in the other pair.
Patent GB-756504-A (GB)
Abstract: 756,504. Automatic control systems for gyroscopes. BENDIX AVIATION CORPORATION. June 8, 1954 [June 9, 1953], No. 16826/54. Class 38 (4). [Also in Group XX] An erection system for a gyroscope comprises means responsive to electric signals for precessing the gyroscope about its axes of suspension, an inductive arrangement for generating the said signals, and a mass or ball of magnetic material arranged in the field of the inductive arrangement, which mass or ball is suspended by a flexible suspension element from a support mounted on the gyroscope. As shown in Figs. 1, 2, the erecting device is mounted on a base-plate 6 mounted on the gyro-casing (not shown). An annular primary winding 10 is mounted on the lower part of a central stepped boss 7 of the base-plate 6. The boss 7 also carries a ring 11 supporting a laminated ring 16 formed with four inwardly extending radial sections forming pole pieces for secondary coils 21, 22, 23, 24. Opposite pairs of coils 21, 23 and 22, 24 are connected in opposition. A ball 29 is suspended by a chain 28 in a casing 25 mounted on boss 7, so as to lie between the pole pieces. Casing 25 is filled with damping liquid, and has an apertured partition 30 to restrict the swing of ball 29 and to prevent it from moving upward. A tube 31 surrounds the chain 28 to prevent kinking thereof. The pole pieces are adjustable so that, winding 10 being energized with A.C., the outputs of coils 21, 23 and 22, 24 are balanced when the gyroscope is vertical. When the gyroscope tilts, the ball moves with respect to the pole pieces, varying the reluctance of the magnetic circuits and causing an out-of-balance signal in one or both pairs of coils. A resistance is connected in parallel with one coil of each pair to provide a minor phase shift to provide a sharp null. The output of each pair of coils is amplified and fed to a discriminator circuit which removes the .out-of-phase fundamental and the harmonic of the fundamental and develops a D.C. voltage of amplitude proportional to the amplitude of the input and of polarity dependent on the phase of the input. This voltage is applied through an integrator circuit to an amplifier controlling a relay with a normally centralized contact. When energized, the relay supplies power to one or the other (according to the polarity of the D:C. voltage) of the windings of an erection motor, which processes the gyroscope back towards the vertical. Two thermally operated delay switches are included in the erection motor circuits. When the apparatus is first switched on, the first of the switches is open, preventing the motors from acting, until the rotor has run up to speed. Thereafter, the second switch, which is connected across resistances in the motor circuits, remains closed for such a period that the gyroscope is rapidly erected. A switch is provided for applying D.C. to the motors to precess the gyroscope out of the vertical, after which normal operation is restored so that the erection rate of the gyroscope may be measured. Specification 660,208 is referred to.
Patent GB-2000215-A (GB)
Title: A security door
IPC: E06B5/10
Filed: 1978-06-14
Abstract: A security door is formed from a plurality of layers with a layer 7 of sheet metal and a layer 8 of resilient material on one side of the sheet metal, these two layers forming a core, and the core having a layer 6 of wood on either side. A door frame for hanging the door comprises a pair of parallel L-section steel uprights (1) to be let into the floor and the surrounding wall structure, and an L-section steel lintel 1 min  bridging said uprights to define a steel frame, a timber door frame comprising uprights (14) and lintel 14 min  being attached to and within said steel frame, with resilient filler strips 9 being interposed between the timber and steel frames. <IMAGE>
Patent GB-2000651-A (GB)
Title: Master clock arrangement
IPC: G06F11/16
Filed: 1978-06-29
Abstract: The arrangement includes a first, a second and optionally a third phase-locked loop and a single master oscillator, the first phase-locked loop being externally controlled by the master oscillator, the second phase-locked loop being externally controlled via a first change-over contact either by the clock signal provided at the output of the first phase-locked loop or by the master oscillator, and the third phase-locked loop being externally controlled via a second change-over contact either by the clock signal generated at the output of the first phase-locked loop or by the clock signal provided at the output of the second phase-locked loop. The master oscillator may be constituted by one of the phase locked loop oscillators in its free running mode. The arrangement employs a reduced number of master oscillators. <IMAGE>
Patent GB-2009180-A (GB)
Title: 25-Alkyl Cholesterol Derivatives
IPC: A61P3/06
Filed: 1978-08-29
Abstract: Compounds of formula (A):   <IMAGE> wherein R2 is an alkyl group having from 1 to 4 carbon atoms, R is a hydrogen atom, an alkanoyl group having from 2 to 7 carbon atoms, or a radical of the formula:   <IMAGE> in which n is a positive integer less than 4, Y is a methylene or carbonyl group, provided that when Y is a carbonyl group, R1 is a hydrogen atom, and when Y is a methylene group, R1 is the group OX in which X is a hydrogen atom, an alkanoyl group having from 2 to 7 carbon atoms, or a radical of the formula:   <IMAGE> in which n is a positive integer less than 4, and the wavy line represents R or S stereochemistry, processes for their preparation, pharmaceutical and veterinary formulations containing them, and their uses as inhibitors of the activity of HMGCoA reductase and as antiprotozoal agents.
Patent GB-2007575-A (GB)
Title: Hair-Trimming Apparatus
IPC: B26B19/22
Filed: 1978-11-07
Abstract: A hair-trimming apparatus suitable for thinning hair comprises comb-like stationary and drivable cutting elements 4, 5 which cooperate with one another in such a manner that in all positions of the drivable element a space exists between every two adjacent pairs of cooperating teeth 6, 7 of the two cutting elements so that the teeth can penetrate the user's hair. The cutting edges of the teeth of at least one of the cutting elements 4 are formed by re-entrant portions 21 of the side edges of the teeth so that only some of the hairs which enter the spaces between adjacent pairs of cooperating teeth are cut. The drivable cutting element preferably reciprocates in a direction parallel to that in which the teeth project from the cutting elements, but it can have other modes of movement, for example, rotary. <IMAGE>
Patent GB-2012333-A (GB)
Title: Water Trap
IPC: E03C1/29
Filed: 1978-12-19
Abstract: In a sink or floor drain trap comprising an outer cup detachably connected as by screw threads (not shown) to a dip tube, the dip tube has an upper mounting flange extending beyond the cup so that the whole trap can be removed upwardly. In the embodiment shown the trap also incorporates, in the centre of the trap inlet grating, a pipe 11 providing a second inlet-e.g. for a washing machine the lower end of the pipe 11 being shaped as an inverted corrugated funnel 12 co-operating with a central guide portion 13 of the cup. Figs. 1 and 2 (not shown) illustrate the use, in upwardly- removable cup and dip-tube traps, of sealing rings (3, 6), a height-adjusting floor connection (4), and a clamping ring (10) for a floor covering. <IMAGE>
Patent GB-2019765-A (GB)
Title: A Tool for Lifting a Building Block
IPC: B25B7/12
Filed: 1979-01-09
Abstract: Two arms 21, 22 are forced apart when located in an aperture in a building block to internally grip the block and enable it to be lifted using one hand only. The arms may be forced apart by a sliding wedge located between the arms. <IMAGE>
Patent GB-2018924-A (GB)
Title: Socket connection for pipes and pipe elements
IPC: F16L37/084
Filed: 1979-02-28
Abstract: The invention relates to a connector for joining pipes, particularly of metal, which comprises a socket 17, bed and a pipe having a smooth end 15 for insertion into the socket. A seal and friction ring 1 inside the socket seals the pipe into the socket and prevents accidental withdrawal. The ring comprises retaining elements 4 having serrated internal edges, each retaining element 4 being embedded in the elastomeric sealing material 2 (shown in figure 3 only) of which the ring 1 is composed and axially slidably guided as well as being freely tiltable about an annular bead 19 on the socket 17. Thus, all the serrations 5a - 5d remain in contact with the end 15, irrespective of its diameter (within a given range). <IMAGE>
Patent GB-2020798-A (GB)
Title: Heat storage units
IPC: F24H9/20
Filed: 1979-06-18
Abstract: A heat storage unit comprises heat storage elements with an air passage (24). To permit the unit to provide for circulation of air in the room being served, without raising the temperature of the air by contact with the heat storage elements, a valve means (30, 32) is provided which is movable between a first condition in which air flows from an inlet (13) of the unit to an outlet (15) at least in part through the heating passage, and a second condition in which said air flows from the inlet to the outlet directly, and not by way of the heating passage. To prevent or minimise undesired dissipation of heat from the heat storage elements by leakage of air through the heating passage, both the inlet and outlet sections (24a, 24b) of the heating passage open into an ancillary chamber (28), the valve means (30) when the unit is operating in its cool running condition being effective to close the ancillary chamber. <IMAGE>
Patent GB-2053121-A (GB)
Title: Conveyor belt cleaning equipment
IPC: B65G45/12
Filed: 1979-07-06
Abstract: Conveyor belt cleaning equipment 5 comprises a plurality of scraper blade units arranged in series along a cylindrical rod 9 mounted adjacent to a belt surface to be cleaned, each scraper blade unit has a resilient bush 12 threaded on the rod and two radially extending support arms 14 and 15 supporting scraper blade elements 16 and 17, respectively, the support arms being fixedly secured to the resilient bush such that the reaction on one of the support arms as it urges the associated scraper blade element into contact with the belt surface is transmitted via the resilient bush to affect the reaction on the other associated support arm. As seen in Figure 2, each of the blade elements 16 is common to a number of support arms 14 and the blade elements 16,17 of each series are arranged in mutually overlapping relationship. <IMAGE>
Patent GB-2054685-A (GB)
Title: A machine for producing chenille yarns
IPC: D04D3/00
Filed: 1979-08-01
Abstract: A machine for producing chenille yarns has a winding member (84) of triangular form around which an effect yarn (E) is wound in a series of turns such that the turns travel along the member (84). The turns of effect yarn wound on the member (84) are cut by a cutter (68) to form individual lengths of effect yarn which are to be held by binding yarns (L1, L2) two chenille yarns being simultaneously produced using the one winding member (84). The cutter 68 is movable longitudinally relative to the winding member (84) in slot (66A) so as to vary the size of the individual lengths of the effect yarn (E). By reciprocating the cutter (68), chenille yarns of cyclically-varying diameter can be produced. <IMAGE>
Patent GB-2030810-A (GB)
Title: Integated injection logic circuit
IPC: G05F3/22
Filed: 1979-08-24
Abstract: In a combination of an integrated injection logic circuit (T1, T2, T10) and a current source circuit (V) connected to the injectors of the logic circuit for energising them, the collector currents and hence the speeds of the logic circuit inverter transistors are standardised from batch to batch of such combinations by comparing the collector current (ICT2) of an otherwise non- controlled transistor (T2) of the integrated circuit, which transistor is itself provided with a current injector (T1), with the output current (Iref) of a reference current source and controlling the output current of the current source circuit (V) in such manner as to reduce any deviation of the difference from a predetermined value to zero. <IMAGE>
Patent GB-2038284-A (GB)
Title: Mounting a lifting mast on a vehicle
IPC: B66F9/075
Filed: 1979-09-03
Abstract: A tractor is provided with a mounting mechanism 10 for use in mounting a lifting mast 30 on and dismounting the mast from the tractor. When not in use, the lifting mast 30 can be stored on a stand 40 which is vertically adjustable to facilitate loading of the lifting mast onto the mechanism 10 of the tractor. To counterbalance the weight of the lifting mast especially when the latter is used for handling loads, the forward end of the tractor is provided with a counterweight mounting unit 60 for mounting a counterweight 90 on the tractor and dismounting it from the tractor. To ensure that the lifting mast cannot be used while the counterweight is not present on the tractor, operation of the lifting mast is governed by a valve 100 which puts the hydraulic circuitry of the lifting mast out of operation until the counterweight is in the properly mounted position. <IMAGE>
Patent GB-2043761-A (GB)
Title: Fixed facing to framing members
IPC: F16B11/00
Filed: 1979-12-21
Abstract: A retaining member (1) for facing comprises an elongate profile rail having at least one adhesive-receiving recess (11) opening into the fixing surface of the rail and having undercut sidewalls (7-10) and/or a through hole for the passage of adhesive. The adhesive used is fire resistant epoxy resin and the joint enables connection of facewall plates in high rise buildings without the use of bolts or similar fixing devices for the retaining member (1). <IMAGE>
Patent GB-2043321-A (GB)
Title: Illumination mechanism
IPC: H03J1/04
Filed: 1980-02-07
Abstract: An illumination mechanism for an escutcheon portion (1) of a car sound device such as a car radio, car stereo, etc. comprises a light-transmissible plate (2) provided at the front of the escutcheon portion and an illuminating lamp or lamps (9) provided behind the light-transmissible plate. A cassette or cartridge receiving opening (5) is formed in the light-transmissible plate and operating members (3,4) for the sound device are provided on the plate. <IMAGE>
Patent GB-2069738-A (GB)
Title: Signs
IPC: G09F7/18
Filed: 1980-02-18
Abstract: A sign to be supported on a wall or ceiling by a bracket, or to be free- standing and supported by a pole or post or a framed stand comprises a support bracket or pole 1 constructed from an extrusion having a common cross-section capable of being interengaged with and bolted at 11, 12 to a frame proper 2 having a complementary cross section for containing the sign. As shown, bracket 1 has a channel for receiving a T-section key portion 10 of the frame proper 2, mating angled faces 18, 19 giving stability. The frame proper 2 has stepped grooves 15 to take different thicknesses of panels 3 or pans 4 which may be illuminable. <IMAGE>
Patent GB-2045810-A (GB)
Title: Preheating substrates prior to coating to remove hydrogen
IPC: C23C14/06
Filed: 1980-03-21
Abstract: In a method for coating articles having a metallic surface by applying a hard surface coating e.g. by chemical vapor deposition or physical vapor deposition, at temperatures below 400 DEG C., onto an electrochemically and/or chemically produced metal layer (electroless plating), the article is heated to 100 DEG C. - 400 DEG C. for 2 to 24 hours prior to coating to remove hydrogen from the surface. The coated article has a pleasing appearance and a high scratch, abrasion and corrosion resistance. The coating is particularly suited for decorative articles, watch movements, watch bands, watch crowns, surgical and optical instruments, cigarette lighters, ball-point pens and tools.
Patent GB-2056582-A (GB)
Title: Sliding contact means with lubricant layer
IPC: B41F13/20
Filed: 1980-06-12
Abstract: Sliding contact means comprises a bush 4 and/or spigot 1.2 for a rotationally or translatorily movable component with a close running tolerance provided with a solid lubricant layer 6. The layer may comprise nickel and graphite, molybdenum disulphide or a mixture of molybdenum, sulphur, molybdenum disulphide and at least one other compound of molybdenum and sulphur. <IMAGE>
Patent GB-2055062-A (GB)
Title: Key for a drilling chuck
IPC: B25B33/00
Filed: 1980-06-17
Abstract: A key for a drilling chuck is produced in a simple and inexpensive manner by flow-pressing and hardening a pinion 1 with a guide pin 2 from high-grade steel and butt welding a shank 3 with an integral tommy bar 4 in a recess 9 in the pinion 1. The free end 10 of the bar 4 fits the same radial bore in the chuck as the pin 2. Thus, the same key can be used both for tightening the chuck and for mounting the chuck in a machine. <IMAGE>
Patent GB-2059859-A (GB)
Title: A rotary member made of plastics material
IPC: B29C45/14
Filed: 1980-07-21
Abstract: A rotary member, such as a fan 5, is moulded from plastics material on an insert 1 having a tubular body 2 with an outwardly oriented flange 3 at one end and a parallel inward flange 4 at the other. Perforations 2a allow the plastics material to penetrate through the insert to a 4 spindle 6 forming a core of the mould. The flanges 3 and 4 are on a level with the two opposite faces of the hub of the rotary member which is thus perfectly centred with respect to its bore. The hub can absorb axial forces of compression. The invention is applicable to fans of rotary electric machines. <IMAGE>
Patent GB-2058972-A (GB)
Title: Inertia-powered brake system
IPC: B60T8/26
Filed: 1980-08-27
Abstract: A braking system is characterised in that part of the braking force is obtained from the inertia of the vehicle or a moving part of the vehicle. To this end a cam-driven pump is connected to at least one wheel, pressurised fluid from the pump being used to apply a disc brake to generate a braking force on said wheel.
Patent GB-2065850-A (GB)
Title: Sliding gate valve refractories
IPC: B22D41/28
Filed: 1980-10-31
Abstract: In controlled molten metal pouring via a sliding gate valve, the metal is teemed through a collector nozzle (32) integrally mounted on a valve plate (31). The nozzle has an expendable discharge tip (33) of lower thermal conductivity mounted internally therein, a shoulder (42) extending around the tip being seated on an internal ledge (40) in the nozzle. The tip (33) may be surmounted by a nozzle liner sleeve (44) which isolates the nozzle upstream of the tip from contact with the metal. A frangible cement secures the nozzle (32), liner (44) and tip (33) together. When the top and/or the liner have worn undesirably, they are forced upwardly through the nozzle and valve plate - rupturing the cement - and are replaced via the valve plate. The internal mounting of the nozzle tip ensures that molten metal cannot leak through the nozzle-tip joint. <IMAGE>
Patent GB-2071347-A (GB)
Title: Photographic copier illumination system
IPC: G03B27/54
Filed: 1981-03-12
Abstract: An illumination system for mixing light from two light sources (1a, b) comprises disposed along a longitudinal axis (5) a solid light- mixing member (6) which has a light- input face having grooves therein of triangular cross-section and raised portions (7) of triangular cross-section separating the grooves such that alternating facets are parallel, and a smooth light-output face; said two light sources each being adapted to direct light onto said light-mixing member from an angle equal to twice the angle of one of said parallel facets relative to said longitudinal axis, light from the two sources passing through the light-mixing member to emerge therefrom substantially along the longitudinal axis. As shown, the system includes a third light source (1c), a dichroic mirror (10), heat filters (2a, b, c), condensers (3a, b, c) and colour filters (4a, b, c). <IMAGE>