baber/WOPTO huggingface dataset:
Patent GB-2060979-A (GB)
Title: Magnetic disc data storage apparatus
IPC: G11B21/12
Filed: 1980-10-09
Abstract: Two flexible magnetic discs are mounted on respectives spindles 21,22 (Figure 3) rotated in opposite directions to one another by a motor 36 via a belt 41, a head carriage 66 located between the two discs supporting magnetic heads 63,64 respectively associated therewith, and the carriage 66 has a cam follower ball 78 engaging in a generally helical cam track 72 of a head screw 71 driven by a stepper motor 68 for track changing of the heads. The cam track 72 has rest zones 73, corresponding to the track positions, alternating with transition zones 74, the pitch of zones 74 being steeper than that of rest zones 73 (Figure 9). The pitch of zones 73 is preferably zero (ie perpendicular to head screw axis 76), and zones 74 preferably have a continually changing pitch, steeper in the middle that at the ends. Use of the different pitches gives more accurate head-track alignment than a constant steep pitch and permits faster positioning than a constant gradual pitch. Loading slots 18,19 (Figure 1) for the discs may be closed by doors 31,32 (Figure 3) linked to pivoted plates 23,24 which are moved towards the respective discs or the doors are closed so that the discs are clamped between spindles 21,22 and clamps 33,34 on plates 23,24, this movement also causing pressure pads 59,61 to move, by means of head loading springs 58 (Figure 6), close to the respective disc so that an energisation of solenoids 52 pads 59,61 rapidly engage those sides of the respective discs not engaged by the heads 63,64. Pads 59,61 are supported opposite heads 63,64 by arms 56 pivoted to carriage 66; the pads 59,61 may be replaced by further magnetic heads. <IMAGE>
Patent GB-2063358-A (GB)
Title: Electrically-operated roller door mechanism
IPC: E06B9/74
Filed: 1980-11-03
Abstract: An electrically operated roller door driving mechanism for operating a roller door curtain 20 comprising a reversible electrical motor (23) (not shown) fixedly mounted to one of the roller door curtain supporting drum wheels 18 and housed within the core of the roller door curtain, the motor and drum wheel being arranged to rotate simultaneously, and a ring gear (35) (Fig. 2, not shown) operatively associated with said motor via a reduction gear mechanism, the ring gear being capable of being held stationary with respect to the rotating drum wheel 18 but also being capable of rotating in unison with the drum wheel to thereby enable the roller door curtain 20 to be manually opened and closed by operation of a manually-releasable pin 45 in the event of a motor malfunction or power failure. <IMAGE>
Patent GB-2087674-A (GB)
Title: Interceptor member for checking vehicle axle loading
IPC: G01G19/12
Filed: 1980-11-13
Abstract: An interceptor member for use in a position transducer comprises a substrate lamina (13) permeable by light or other radiation and barrier lamina (14) impermeable to said radiation. The barrier lamina (14) has annular window elements (such as 13d, 13d2) occupying one ofa plurality of annular zones (12a to 12f) extending about axis (11) of the interceptor member. Light or other radiation is incident through the window elements of each zone on respective photo-transistors. The configuration of the window elements collectively is such as to provide a binary coded digital output which may be of Gray form. The transducer may be utilised in a method of checking vehicle axle loading or providing an output to operate an indicator or adjustment means for levelling vehicle head lights when the vehicle tilts due to varying loads. <IMAGE>
Patent GB-2081793-A (GB)
Title: Improvements in or Relating to Ladders
IPC: E06C1/22
Filed: 1980-12-05
Abstract: The invention provides a ladder with adjustable legs so that it can be used on uneven surfaces. Each leg (1, 2, 4, 5) consists of a fixed part consisting of C-shaped aluminium and a sliding part (11, 12, 15, 16). Various forms of locking means for securing the sliding parts within the fixed parts are described. Where the ladder is a step ladder, it also includes a top platform (9) having an adjustable bar (10) which enables the angle between the legs to be adjusted. An adaptor (Fig. 8) is also disclosed for fixing to a conventional ladder stile to provide length adjustment. <IMAGE>
Patent GB-2068158-A (GB)
Title: Intrusion alarm system for vehicles
IPC: B60R25/10
Filed: 1980-12-17
Abstract: A vehicle alarm broadcasts a low frequency modulated radio frequency alarm signal at the citizen band distress frequency upon a drop in the vehicle power supply voltage induced by an unauthorized intrusion. Networks of citizen band radio detectors, mobile dedicated alarm detectors, and fixed dedicated alarm detectors accompanied by a display unit, can receive the alarm signal. In the vehicle (Fig. 4), timers 30, 31, push-button 32 and thumbwheel security switch 36 permit the authorised user to avoid actuating the alarm on entering or leaving, and the transmitter 40 may be a wafer sandwiched between the layers of the windshield. <IMAGE>
Patent GB-2074876-A (GB)
Title: Device for supporting thread
IPC: A61C15/04
Filed: 1981-02-27
Abstract: A device for supporting a tensioned thread comprises a body 11 and a relatively movable arm 18 which have respective attachment points 13, 19 for the thread. The thread is attached with the arm in a part-extended disposition, and the arm is then locked in a fully-extended disposition to tension the thread. As described the device is a dental floss dispenser. Operation of a button 29 releases the lock for the arm. The attachment points may be in the form of cleats (as shown) or screws (not shown). <IMAGE>
Patent GB-2096564-A (GB)
Title: Vial
IPC: C03B23/11
Filed: 1981-04-10
Abstract: A vial (1), particularly a glass vial, wherein the plane "Y" through the narrowest part of the neck portion of the vial obliquely crosses at an angle  alpha  with respect to the axis of the vial thereby to decrease the production of broken glass pieces and the entry thereof into the vial during cutting open of the vial. Apparatus and a method for manufacturing such vials are disclosed (Figure 8). <IMAGE>
Patent GB-2074666-A (GB)
Title: Speed Change Gearing for Crusher
IPC: F16C35/067
Filed: 1981-04-28
Abstract: A speed change gearing 5 of a crusher for crushing coal or other solid material connected to the lower end of a main body of the crusher for transmitting drive force from a motor to the main body of the crusher includes a thrust bearing 11 for bearing all the load applied to the gearing by rotary members of the crusher and the solid material in the main body of the crusher. To avoid wear, a race, 11a, 11b of the thrust bearing 11 or a part 6, 9, 10 positioned against such race is subjected to surface treatment, to increase the wear resistance of its surface. <IMAGE>
Patent GB-2075588-A (GB)
Title: Locks
IPC: E05B65/10
Filed: 1981-05-07
Abstract: A lock assembly has a bolt which is normally movable by a lock mechanism between projecting and retracted positions and which is adapted to be returned to the retracted position by an emergency release mechanism which overrides the lock mechanism. The release mechanism comprises a normally inoperative retraction member 29 which engages with the bolt to urge the bolt to the retracted position when a detent member 30 is manually operated by a push rod urged releasably into a hole in the casing of the assembly. The retraction member 29 is a cam rotated by engagement of a boss 45 on the detent member, which is a slidable plate, with a shoulder 35 on the cam when the detent member is moved, against spring loading, by the push-rod, and the cam carries a boss 34 which engages with a projection 9 on the bolt to retract the bolt. A microswitch 51 is operated by the cam to indicate when the release mechanism has been operated. A catch 14 which positively retains the bolt in the projected position is moved clear of the bolt by the release mechanism when the latter is operated. The release mechanism is re-set by the bolt when the lock mechanism is subsequently operated to return the bolt to the projected position. <IMAGE>
Patent GB-2076970-A (GB)
Title: Displacement transducers
IPC: G01D5/241
Filed: 1981-05-15
Abstract: A capacitative displacement transducer in which the electrodes 12, 14 are formed by a pressure die-casting process enabling mass production of transducers having similar characteristics to very close tolerance. In one embodiment, two die cast elements comprise cylindrical plates (12a-12c, 14a-14c) which are axially tapered to provide a mould release angle, the angles of taper being complementary so that the faces of the plates remain mutually parallel. <IMAGE>
Patent GB-2081803-A (GB)
Title: Improvements in friction supporting stays for windows
IPC: E05D15/44
Filed: 1981-07-21
Abstract: A friction supporting stay for windows comprises a track 10, a slider 15 movable along the track, a strut 16 pivotally connected to the track, a brace 18 pivotally connected between the slider and the strut, a link 21 pivotally connected to the slider, and a bar 24 pivotally connected to the link and to the strut, the arrangement being such that as the slider moves along the track the bar can swing from a position overlying the track to a position where it is angled with respect to the track. There is provided on the track a guide element 31 with which said brace 18 or strut 16 engages as the bar 24 is moved into said position overlying the track, the guide element being shaped and arranged to hold the brace or strut out of binding engagement with the track during the final part of said movement. <IMAGE>
Patent GB-2103853-A (GB)
Title: Wheelchair cushion monitor and alarm apparatus
Inventor: BAR CHRISTOPHER ANTHONY
IPC: A61B5/11
Filed: 1981-07-31
Abstract: Apparatus for reminding patients with limited movement to perform movements at regular intervals in order to reduce the risk of pressure sores is described. A load sensor (1) positioned beneath the patient senses movement, each movement greater than a predetermined threshold being accumulated in a counter (4). The accumulated number is continuously compared in a comparator (5) with a preset number. In the monitor state if the accumulated number does not equal or exceed the preset number within a predetermined time, the comparator (5) produces an output signal which enables a flip-flop (7) and an alarm (3) and puts the apparatus into an alarm state. In the alarm state when a predetermined time has elapsed, say 10 minutes, and a push- up of a predetermined time has not been performed, the alarm is actuated. Each time the patient does a push-up of the required time the alarm is postponed for 10 minutes. At the end of the monitor period if the accumulated pressure relief time in the memory is still insufficient, the timer is reset in the alarm mode, if the accumulated pressure relief time is sufficient the timer is reset to the monitor mode. <IMAGE>
Patent GB-2104568-A (GB)
Title: Prefabricated sound-absorbent element
Inventor: BIZNOSAN RAZVAN
IPC: E04C1/41
Filed: 1981-08-20
Abstract: The element 1 is composed of autoclaved cellular concrete reinforced with a wire net cage. It encloses a mineral wool mat 3 which is exposed by the formation of milled slots in the active face of the element. The central strip of concrete is joined to the back by a column 4. <IMAGE>
Patent GB-2088651-A (GB)
Title: Portable power generating device
IPC: F21L13/08
Filed: 1981-11-27
Abstract: A portable power generating device incorporating or associated with an electrical load, e.g. a torch, comprises mechanical drive such as an external pivoted lever 5, operable by the user, which imparts motion to the rotor, secured to shaft 16, via a gear train driving the rotor and a flywheel 17. The motion of the flywheel is transmitted to a gear driving the rotor, by another gear which rotates faster than the gear driving the rotor. A lamp may be separate or separable from the torch body housing of the generator. The lever may be foot operated. The generator may heat a wire for ignition applications. Gear parameters are specified. <IMAGE>
Patent GB-2094406-A (GB)
Title: Internal combustion piston engine with auxiliary heated-air-or- gas cylinders
IPC: F01K23/02
Filed: 1981-12-18
Abstract: The heat from the cylinder of the internal combustion piston and cylinder (A) is extracted by air or gas which is passed through chambers (8, 8') on each side of the combustion cylinder by means of auxiliary pneumatic piston and cylinders (B and C) which are driven by the heated air or gas and do work to increase the efficiency of the engine, the auxiliary piston and cylinders (B and C) being used to increase the power of the engine and/or to drive any auxiliary mechanism. <IMAGE>
Patent GB-2095922-A (GB)
Title: Electric plugs
IPC: H01R13/502
Filed: 1982-02-17
Abstract: An electric plug comprises a base member (6) and a cover member (8), each of which is provided with a hook formation (24, 26) to enable the cover member to be mounted on the base member. On the end opposite to that on which the hook formation (26) is provided, the cover member (8) is provided with fixing apertures (30), through each of which when the cover and base members are in their relative closed positions a steel fixing pin (36) may be inserted, to engage with a formation (32) on the interior of the base member, to hold the base and cover members fixedly in their closed positions. The terminals (15) of the plug are provided with apertures (40) which, on assembly of the plug, a conductive wire is inserted. The terminal is then deformed to trap the wire between surface portions thereof bounding the aperture. <IMAGE>
Patent GB-2094986-A (GB)
Title: Automatic pressure/flow device
IPC: G01N15/08
Filed: 1982-03-02
Abstract: A device for the determination of the gas permeability of a material such as paper includes means 1 for holding a sample across a gas flow passage and a pump 2 for drawing air through the passageway via one or more constant flow devices C1-C6 arranged in parallel. Each constant flow device has a closable control valve V1-V6. A transducer 8 measures the pressure drop across the sample and a transducer 9, 10 the flow. A by-pass by-passes selectively three of the control valves of the constant flow devices. The by-pass has valves B1-B3 arranged in parallel and operable to close the by-pass to gas flow therethrough to the respective constant flow devices C1-C6. The by-pass also includes an atmospheric bleed means 11 and a valve B4 closable to stop the flow of air into the by-pass means. A microprocessor 15 is programmed for iterative opening and closing of valves V1-V6 to produce a stepwise increasing series of nominal flow rates and to record pairs of pressure differential and flow rate valves for each nominal flow rate. The microprocessor will not proceed to the next higher nominal flow rate if its estimated value of the pressure differential corresponding to the next higher flow rate exceeds a limit value. <IMAGE>
Patent GB-2099357-A (GB)
Title: Extruding around a metal pipe, a sheathing incorporating identifying strips
IPC: B29C48/09
Filed: 1982-05-28
Abstract: Longitudinally extending identifying strips (24) of polyethylene, are distributed around the circumference, on the surface of a steel pipe (17) or like elongate article sheathed with polyethylene, the sheating of which is formed by simultaneous extrusion of a tubular foil (19) of ethylene copolymer serving as contact adhesive and of a tubular polyethylene foil (24) lying over it, using an extruder head with two ring channels (6,11) from which the foils are extruded. The labelling strips are applied in the longitudinal direction during the extrusion process, by delivery into the extrusion channel (11) of the tubular foil (24), at an extrusion pressure greater than that of the tubular foil, via an extruder head inlet (20), ring channel (21), and openings (23) into the channel (11). <IMAGE>
Patent GB-2104284-A (GB)
Title: Semiconductor integrated circuit device and a method of manufacture thereof
Inventor: ITOH TSUNEO
IPC: H03K19/0185
Filed: 1982-06-14
Abstract: A semiconductor integrated circuit device has a plurality of unit cells (2) arranged transversely in rows and spaces between adjacent rows are used as wiring channels (4). Further cells (5) constitute input and output circuits with a variety of different circuit functions. Each cell (5) is associated with a plurality of bonding pad regions (6a, 6b) which can be wired using superposed wiring patterns so that any of the plural input and output functions can be selected. The steps of a method of constructing the IC are also disclosed. Each cell may include MISFETS. 
<IMAGE>
Patent GB-2186384-A (GB)
Title: Head-up display collimating element
Inventor: BANBURY JOHN RANDOLPH
IPC: G02B27/01
Filed: 1982-08-19
Abstract: In an optical element (10) for use as a collimator for a head-up display system a convex lens (11) is in optical contact with a diffractive optical element (12) acting as a concave mirror for on-axis light at diffracting layer 14. Off-Axis spurious light (A, B) is diverged by the upper surface of the convex lens (11) and in a head-up display system susceptibility to image washout, by off-axis light is thereby reduced. Spurious light entering the element (10) is absorbed by an absorbent layer (15). The present invention reduces the problem of display washout and is particularly suited to systems wherein the axis is protected by other means, such as a blocking reflector in the object to image light path. <IMAGE>
Patent GB-2115636-A (GB)
Title: A solid-state imaging device
Inventor: OHBA SHINYO
IPC: H04N5/217
Filed: 1983-01-04
Abstract: A solid-state imaging device having a sensor portion (61) and a signal processing circuit comprising a transistor (63) and a load (R1) connected as an emitter follower circuit for receiving the video signals, a second transistor (65) which is connected in series with the transistor (63) and which receives a reset signal ( phi R), a capacitor (C1) connected across the transistor (63) and the load (R1), and a second load (RL) connected in series with the second transistor. The output from the circuit is taken at the junction between the second transistor and second load. This circuit effectively eliminates fixed pattern noise in order to achieve a good quality picture. <IMAGE>
Patent GB-2113142-A (GB)
Title: Apparatus and method for laser perforation of moving material
Inventor: MALONE EARL R
IPC: B26F1/00
Filed: 1983-01-13
Abstract: Irregation tubing 12 has a supply tube 16 and an emitter tube 14 with a common wall 17. The laser 2 is used to perforate the wall of the emitter tube 14 and/or the common wall 17 while the tubing 12 is travelling in direction A. The laser beam 6 reflected by a rotating twelve-sided mirror 8 sweeps across the diameter of the lens 10 and thus its focus 18 is held at the same point along the moving tubing. To perforate the wall 17 the lens can be shifted to the position shown in broken lines or a split lens may be used with half at each position. <IMAGE>
Patent GB-2115280-A (GB)
Title: Pharmaceutical preparations in film form
Inventor: ZIERENBERG BERND
IPC: A61K9/70
Filed: 1983-02-10
Abstract: A novel process for the preparation of a pharmaceutical preparation in the form of an polyacrylate film for long-term transdermal administration of systemic pharmaceuticals comprising forming a homogeneous solution of an effective amount of a systemically acting pharmaceutical and a freeze-dried latex of a polyacrylate copolymer of methyl and/or ethyl esters of acrylic acid and methacrylic acid formed by emulsion polymerization and having an average molecular weight of about 800,000 in at least one organic solvent, forming a thin layer of the said solution and drying the layer to form a polyacrylate film and the film product produced by the said process.
Patent GB-2121274-A (GB)
Title: Wafer-baking mould and baking bar for such mould
Inventor: LOACKER ARMIN
IPC: A47J37/06
Filed: 1983-03-28
Abstract: This invention provides baking bars (2) by which the wafer-baking cavity (1b) between baking plates (1, 1a) of a water-baking mould is defined at the periphery of the mould. Said baking bars (2) define passages for an escape of vapour from said cavity and also define a baking zone (4) in which surplus dough from said cavity is baked between the peripheral surfaces of one of the baking plates (1a) and the edge portion of the baking bars. Vapour and dough escape through conical indentations 3 and the bars are vertically adjustable by means of screws 5 which pass through slots in the bars. <IMAGE>
Patent GB-2144659-A (GB)
Title: Horizontal continuous casting of round billets
Inventor: BERENOV ALEXANDR DMITRIEVICH
IPC: B22D11/14
Filed: 1983-08-11
Abstract: The casting process comprises feeding molten metal to a mould (3), holding the melt in the mould (3), rotating the billet (8) thus produced and simultaneously withdrawing it during each revolution by a length 0.02 to 0.1 times the pitch (t) of the helicoidal surface (5) of a detachable end wall (4) of the mould (3). <IMAGE>
Patent GB-2126199-A (GB)
Title: Two piece box
Inventor: SALMINEN ARVO
IPC: B65D5/38
Filed: 1983-08-17
Abstract: A two-piece box comprises an outer shell formed from panels (16- 19) and an inner part formed from panel (20-23) intended to be entirely or partly pulled out from the outer shell the inner part and the outer shell being initially attached to each other by means of a tear strip (3). The box is formed by folding the blank (1) of the inner part and the blank (2) of the outer part along the longitudinal fold lines (6-14) of the box in the same direction. In an attachment flap (15) of the outer part there is a slot (41) overlying the tear strip (3) so that the inner part and the outer shell can be detached from each other without breaking the juncture between the attachment flap (15) and the side panel (19). <IMAGE>
Patent GB-2130725-A (GB)
Title: Acoustic logging of earth formation
Inventor: CHEN SEN-TSUEN
IPC: G01V1/44
Filed: 1983-11-04
Abstract: A multipole shear wave logging device includes a logging sonde (10), means (12) for generating a 2<n>-pole eg octopole shear wave in an earth formation (22) surrounding a borehole (20) containing liquid where n is an integer greater than 2, and means (D1, D2) for detecting in the liquid a refracted compressional wave produced by the 2<n>-pole shear wave. The detecting means comprises two detectors (D1, D2) in the liquid spaced apart longitudinally from each other and from the generating means (12). The shear wave velocity of the formation is determined from the time interval between detections of the refraction of the octopole shear wave by the two detectors (D1, D2). The octopole generator 12 comprises 6 circumferentially spaced piezoelectric segments which are operated so that opposed ones contract and expand in opposition. The detectors 14 may be of similar construction. <IMAGE>
Patent GB-2152859-A (GB)
Title: Universal electro-magnetic drill stand base
Inventor: VANN BRENTON
IPC: B23B45/14
Filed: 1983-11-19
Abstract: A universal electro-magnetic drill stand base, has the facility to accommodate various marketed bench drill stand pillars. A standard bench drill stand pillar can be removed from its bench base plate and secured in the universal electro-magnetic drill stand base by means of a clamping arrangement which can accommodate a range of pillar sizes. When connected to a suitable electric power supply the universal electro-magnetic drill stand base can be energised, thus securing the drill stand on any clean flat ferrous surface in order to drill holes in that material. <IMAGE>
Patent GB-2140372-A (GB)
Title: Conveyor roller
Inventor: MAJOR HARRY
IPC: B65G13/00
Filed: 1983-12-22
Abstract: A roller for a roller conveyor (10) has a circular outer article-engaging surface (20) and a transversely extending through bore. A rotatable drive shaft (44) extends through the bore for rotating the roller. The bore in the roller is offset from the transverse centre of the roller to cause an eccentric rotation movement of the outer surface (20) of the roller. <IMAGE>