baber/WOPTO huggingface dataset:
Patent GB-685629-A (GB)
Abstract: 685,629. Vaporizers; spray carburetters; regulating; induction pipes. SIREJOLS, A. P. Sept. 2, 1949 [June 17, 1949], No. 22796/49 [A Specification was laid open to inspection under Sect. 91 of the Acts, March 17, 1950]. Classes 7 (ii), 7 (iii) and 7 (vi). In a vaporizing system having a sliding sleeve 16 which is controlled by a linkage 18 from the throttle valve of a downdraught carburetter connected at 14 and is moved awav from an exhaust-heated hot-spot 19 in the inlet manifold as the throttle valve is opened, the mixture from a second carburetter is supplied through a connection 15 to mix with that from the first carburetter adjacent the hot spot 19. A cupshaped deflector 20 is fixed above the hot-spot 19. At idling the movable sleeve 16 closely approaches the deflector 20 and the mixture passes through slots 20a therein into direct contact with the hot-spot 19. An electric heater 23 heats the deflector 20 at starting, and the sleeve 16 may be guided by ribs so that some mixture can pass around the outside thereof. The Specification as open to inspection under Sect. 91, describes a modification in which the supply of mixture from the second carburetter is omitted and in which the sleeve is said to form the anode of an ionizing apparatus. This subjectmatter does not appear in the Specification as accepted.
Patent GB-2000265-A (GB)
Title: Daylight lamps
IPC: F21V29/00
Filed: 1978-06-15
Abstract: The invention relates to the technical field of these lamps and is directed to the improvement of the design of such lamps. The safety of the lamp is improved by there being a first housing for the burner 20 and a second housing 27 containing control circuitry 17a, 17b for the burner 20. The two housings are separate from one another and assembled together. Cooling is improved by at least one wall portion of the first housing being made from strips 25a, 25b, having angled or curved cross-sectional shapes, which overlap one another providing ventilation spaces 22a, 22b between them. <IMAGE>
Patent GB-2002474-A (GB)
Title: Anti-skid brake control system
IPC: B60T8/50
Filed: 1978-08-09
Abstract: An anti-skid brake control system produces a brake pressure release signal and a subsequent re-apply signal in successive brake pressure release/re-apply cycles; and also a change-over signal to trigger a change from a first, rapid re-apply stage, to a second, slow re-apply stage, during the re-apply stage of each cycle. The change-over point in each cycle is controlled in a manner dependent on the duration of the re-apply stage in the preceding cycle, whereby the duration of the re-apply stage is dynamically adjusted to assume a preset value. Preferably the change- over point in each cycle is further controlled in a manner dependent on the duration of the preceding brake release stage so that the duration of the brake release and brake re-apply stages changes in the same sense. <IMAGE>
Patent GB-2007010-A (GB)
Title: Solvent extraction columns
IPC: B01D11/04
Filed: 1978-08-24
Abstract: In pulsed columns for use in solvent extraction processes, e.g. the reprocessing of nuclear fuel, the horizontal perforated plates 9 inside the column are separated by interplate spacers 14 manufactured from metallic neutron absorbing material. The spacer may be in the form of a spiral or concentric circles separated by radial limbs, or may be of egg-box construction. Suitable neutron absorbing materials include stainless steel containing boron or gadolinium, hafnium metal or alloys of hafnium. <IMAGE>
Patent GB-2007370-A (GB)
Title: Electrochemical measuring probe
IPC: G01N27/49
Filed: 1978-09-12
Abstract: A measuring probe for amperometric analyses, has a reference electrode (8) with a salt bridge (11, 12, 13) which is a capillary structure. The salt bridge is fitted in the surface of the reference electrode and its outlet is directly adjacent to a working electrode (1), which preferably has an axial passage accommodating the reference electrode and salt bridge. A counter electrode 4 may surround both electrodes and form the probe body. <IMAGE>
Patent GB-2006441-A (GB)
Title: Variable Area Flowmeters
IPC: G01F1/22
Filed: 1978-10-12
Abstract: A variable area meter insert unit (10) for insertion into a variable area flow meter frame (30). The unit has a pair of opposed side walls 12, 13, a top 14 and a bottom 15. A flow meter tube (20) is supported in holes in the top and bottom. When installed the unit fits flush within the frame whereby the tube is aligned with connections 59, 56 in the frame. The tube is clamped between seals 45, 46 by a screw 37 which urges sliding connector 59 downwards. To minimise risk to operators, the rear wall 17 is thin to allow fluid to escape backwards in the event of tube breakage. <IMAGE>
Patent GB-2031374-A (GB)
Title: Valved Sacks or Bags
IPC: B65D30/24
Filed: 1978-10-13
Abstract: A valve insert for a valved sack includes a seamed or seamless tube (1) of floppy flexible material e.g. polythene secured as by adhesive (3) to a backing strip (2) of paper or similar material for a portion of the length of the tube (1) to leave an unsecured portion at one end of the tube (1), the backing strip (2) serving to stabilise the flexible tube (1). <IMAGE>
Patent GB-2033528-A (GB)
Title: Foraminous screening device and method for making same
IPC: B29C53/82
Filed: 1978-11-09
Abstract: A foraminous screening device 1 comprising a cylindrically tubular body 2 having a plurality of spaced apart apertures 3 therethrough and including a network of helically shaped ribs 4. The network includes first and second rib sets both having a plurality of mutually parallel and axially spaced ribs therein. The ribs of the first set have a clockwise orientation and are connected at points of intersection to the ribs of the second set which are oriented in a counter- clockwise direction. Each of the ribs comprises a plurality of axially disposed, overlying bundles of tensed glass filament which are interconnected and embedded in a matrix of hardened synthetic resin. The ribs are interwoven at each point of intersection, and each bundle constitutes a portion of a continuous, elongated glass filament strand. The device is formed by winding resin wetted filaments on to a mandrel having first and second intersecting helical grooves of opposite hand and curing the resin. The mandrel is of a liquidfiable material. <IMAGE>
Patent GB-2011751-A (GB)
Title: Optical measurements using a semiconductor laser
IPC: G01N21/88
Filed: 1978-12-04
Abstract: In order to obtain the distance of a reflecting point in an optical transmission medium such as a break point 13 in an optical fibre 1, use is made of the property that when the beam of a direct current driven semiconductor laser 2 is directed through the medium to the point and is then reflected back into the laser through the transmission medium 1 the result is a frequency modulated beam, the modulation frequency having an inverse relationship with said distance. The fundamental frequency in the frequency modulation may be determined by a spectrum analyzer 5. The transmission medium may be air, the reflecting point being a distant object. <IMAGE>
Patent GB-2012240-A (GB)
Title: Plastics sack with internal closure member, base cover sheet and emptying means
IPC: F02B61/04
Filed: 1978-12-12
Abstract: A plastics sack made from tubular material has one end folded to form a base defined by two triangular tucks 3, 4 interconnected by a welded-on or heat-sealed joining strip, and two side flaps 11, 14 which incorporate the ends of the joining strip. A cover sheet 10 is adhered to the inner edges of the corner tucks and over only one side flap 11. The other side flap 14 can be pulled out from beneath the cover sheet 10 to form an outlet for the sack contents or is temporarily secured to the outside of the cover sheet so that it can be readily detached for the same purpose. <IMAGE>
Patent GB-2040955-A (GB)
Title: Rayon Fibers Containing Starch
IPC: C08L1/24
Filed: 1979-01-31
Abstract: Rayon fibers are made by spinning a viscose containing dissolved starch. Starch grains may be slurried in water, then made alkaline with NaOH to form a solution which is then added to viscose.
Patent GB-2015096-A (GB)
Title: Gear Lever Mounting
IPC: F16H59/02
Filed: 1979-02-21
Abstract: A gearbox has a housing 11. Gear change displacer 14 extends through the walls of the housing and is pivotably connected to the lower end of a manually operable gear change lever 12. The lever is pivotable about a fulcrum 16 which is coupled to the housing by a rigid link 19. The link limits movement of the gear lever 12 to reduce the chance of inadvertent contact with obstructions in the vicinity of the lever. <IMAGE>
Patent GB-2013912-A (GB)
Title: Photocopying
IPC: G03B27/04
Filed: 1979-02-26
Abstract: A portable copying machine of the heat development/image transfer type, which is simple and cheap, has a manually operated heating device. As shown, the machine comprises a casing, including diffusing screen 28, hingedly connected to base plate 18, automatically timed exposure being effected between plate 18 and screen 28. In the development step, the exposed sheet heat sensitive sheet laminate is passed between a heating member and a roller having end knobs 8 with finger holes to facilitate manual operation. The roller has a speed restricting device. A light and heater switch and a thermal cut-out for the lamp and heating device are provided. In another form (Figure 4), the machine is of triangular cross-section, the upper surfaces being for exposure and development, resp., and has a pressure blanket pivotally connected to the apex of the triangle to cover each upper surface in turn. <IMAGE>
Patent GB-2015347-A (GB)
Title: A human female incontinence device
IPC: A61F5/455
Filed: 1979-04-09
Abstract: A female incontinence device includes a pad of surgical adhesive material, which is connected to a funnel and a pipe. The pipe may include a non-return valve to prevent backflow of urine. The pad may have a ridge-like projection centrally thereon constructed to extend between the labia majora of the wearer. <IMAGE>
Patent GB-2037329-A (GB)
Title: Circular Knitting Machines
IPC: D04B15/92
Filed: 1979-05-14
Abstract: In a circular knitting machine, a tensioning device for the article being knitted comprises a frusto-conical wall along which the article moves and a pair of annular elements with a flexible rim which act alternately on the article to urge it along the wall. The elements are concentric and are driven with a reciprocating motion. Inside the inner annular element there is a conduit which extends upwards from the flexible rim of this element. In the conduit there is created a pneumatic suction flow to reverse the article axially about said rim in the opposite direction to the direction in which the article normally extends from the narrowest region of the frusto-conical wall. The conduit opens by way of a grid into a chamber fitted above the tensioning device and which can be connected to a source of suction during knitting, and alternately to a source of pressure for expelling the finished article downwards, the chamber walls being fixed whereas the conduit rotates together with the flexible annular elements to drive same. <IMAGE>
Patent GB-2035852-A (GB)
Title: Deaerator device
IPC: F01P11/00
Filed: 1978-10-20
Abstract: A deaerator device (10) has a tubular casing (36) and an internal helical blade (38) defines an axial opening (60) through the center thereof toward which entrained gas bubbles will converge as a fluid travels through the casing (36). A vent pipe (40) collects the gas bubbles at the opening (60) and communicates them away from the casing (36).
Patent GB-2021546-A (GB)
Title: Method of Holding Bentonite in Suspension
IPC: B01J20/16
Filed: 1979-06-20
Abstract: A method of holding bentonite in suspension in water by an addition thereto of magnesium sulphate heptahydrate (MgSO47H2O) in an amount sufficient to hold it in suspension. The suspension is used to remove haze in wine or beer.
Patent GB-2025678-A (GB)
Title: Mathematical apparatus
IPC: G09B19/02
Filed: 1979-07-04
Abstract: Apparatus for use as an aid in teaching mathematics comprises rectanguloid elements of different shapes and sizes and having size-related colour characteristics. The constituent elements include a multiplicity of small same colour cubic blocks 2, a group of square slabs 3', 3'', 3''' of a colour different from that of the small cubic blocks, each slab having a thickness equal to the edge length of one of such blocks and a side length which is a whole number multiple of that length, and a group of bars 4', 4'', 4''' whose colour differs from the colours of the cubic blocks and slabs, each bar having a width and thickness equal to the edge length of one of said blocks and a length equal to the side length of one of the slabs. The apparatus can additionally include a large cubic block 1 of edge length also equal to the side length of one of the slabs. The apparatus is useful for a variety of purposes including the explanation and representation of fractions and their multiplication and of algebraic formulations and processes. <IMAGE>
Patent GB-2058960-A (GB)
Title: Shaft seal arrangement
IPC: F16J15/32
Filed: 1979-09-18
Abstract: A seal for a rotatable shaft 2 which passes through a housing wall 1 has a fist seal 10 resiliently urged against the shaft, a cup- shaped dust cover 12 fixed on the shaft and a second seal 14 urged against the skirt 13 of the dust- cover, the seals being secured to the exterior of the housing wall. The seals are integral with each other and comprise a flexible annular member bonded to a metal backing plate 8. <IMAGE>
Patent GB-2050248-A (GB)
Title: Device for holding a book open
IPC: B42D9/00
Filed: 1979-10-31
Abstract: A device 2 for holding open a book comprises a first arm 6 which in use extends across the open pages of the book, and a second arm 8 which locates behind a cover of the book so as to clamp the first arm across the pages. The first and second arms are preferably formed integrally of resilient plastics material. The first arm 6 is preferably transparent to enable print therebeneath to be read. The first arm 6 may also be tinted and/or have magnifying properties. Grips 14 are preferably provided for frictional engagement with the book. <IMAGE>
Patent GB-2037607-A (GB)
Title: Heat exchangers
IPC: F23G7/07
Filed: 1979-12-11
Abstract: A process for the recovery of energy from a fluid stream comprises continuously adding fuel in such a quantity to the fluid stream that the ratio of fuel to oxygen present remains substantially stoichiometric, passing the so-produced mixture through a heat exchanger having on one or more heat exchange surfaces thereof a catalytic layer such that at least the fuel in the said mixture undergoes catalytic oxidation, and removing at least a part of the heat originally present in the fluid and of the heat produced by the catalytic oxidation. An oxygen sensor may be provided in the inlet, coupled to a means for varying the proportion of fuel in the input. The catalyst is preferably a wash-coated heat exchanger (Figure 1) with a surface layer of platinum group metal catalyst plus a base metal additive. <IMAGE>
Patent GB-2038508-A (GB)
Title: Process and apparatus for joining tube elements of weldable synthetic material
IPC: F16L47/02
Filed: 1979-04-23
Abstract: Tube elements, i.e. pipes, shaped pieces and armatures of weldable synthetic material, are interconnected by electric welding. The welding operation is made possible by means of a welding sleeve (3) which is connected to the output (4) of the apparatus. A monitoring device (11) allows the engagement of a stage (7) of the welding circuit. The heating power is determined by a quadratic mean of the welding voltage of the network voltage respectively, in a pulse generator (9) which generates a pulse frequency depending upon this value. The generator pulses are added in a counter (10) and when the counted value corresponds to the heating energy, the stage (7) of the circuit is disengaged. If this value is not reached, a monitoring device (5) produces a failure signal.
Patent GB-2041047-A (GB)
Title: Road Studs
IPC: E01F9/06
Filed: 1979-12-20
Abstract: A road marking stud has a movable reflector (10) facing four lenses (2, 5) in a casing (1). The reflecting surfaces of the reflector facing the lenses have alternate different colour parallel stripes matching cylindrical lens elements (8) of the lenses and is slidably mounted. A bi-metallic strip (11) bows upwardly when the ambient temperature approaches freezing point to move the reflector and changes the colour of the stripes facing the lens elements so that the light from a vehicle head lamp illuminating the stud and reflected back also changes in colour as a warning to the vehicle driver. <IMAGE>
Patent GB-2046370-A (GB)
Title: Gas bearing
IPC: F16C32/06
Filed: 1980-01-08
Abstract: In a gas bearing, there are provided a plurality of axially spaced circumferential annular grooves (13) located near opposite ends of the bearing and connected to a source of pressurized gas (16) through a plurality of angularly spaced gas supply ports (14). <IMAGE>
Patent GB-2068093-A (GB)
Title: Heat exchangers
IPC: F24H9/00
Filed: 1980-01-24
Abstract: Metal heat exchangers formed by casting in a cored mould leave core openings which must be closed before use. The openings 4 are closed by means of dished or cup-shaped core plugs 8 similar to those used in automobile engine cylinder blocks. <IMAGE>
Patent GB-2071467-A (GB)
Title: Envelope-following compander
IPC: H03G7/00
Filed: 1980-01-29
Abstract: A compander system for complex variable frequency signals in which a sequence of intervals is defined by the zero crossovers of the signal and in which the envelope of the signal is sampled in each successive one of the said intervals. A control signal representative of the relevant sample is held during the ensuing interval and is used to control during that interval the gain of a voltage controlled amplifier at the input of which is presented the said complex variable frequency signal. In the basic form of the compander, the input signal is fed, in parallel, to the voltage controlled amplifier (7) to a zero cross-over signal detector (12) and to a sample and hold circuit (8). The sample and hold circuit (8) which together with a bias circuit (11) provides the control signal (10) for the voltage controlled amplifier (7) is reset at the end of each interval by the signal provided at the output of the zero cross-over detector (12). When used as a signal compressor, the signal at the output of the sample and hold circuit is also encoded in an encoder (9) and outputted as an expansion control signal either in a separate channel or mixed with the output of the voltage controlled amplifier. By suitable adjustment of the bias circuits (17 and 11) expansion may exceed one hundred per cent and compression up to one hundred percent is possible. <IMAGE>
Patent GB-2072351-A (GB)
Title: Weight Testing Apparatus
IPC: G01M99/00
Filed: 1980-02-05
Abstract: A weight-testing bag 10 comprises a flexible envelope 11 of liquid-impervious material having an inlet 12 and an outlet 13, means for suspending the bag from a support, and valve means 21, 22, 23 associated with the outlet operable to regulate the amount of liquid discharged from the envelope through the outlet. <IMAGE>
Patent GB-2070194-A (GB)
Title: Resilient shaft couplings
IPC: F16D3/68
Filed: 1980-02-26
Abstract: A vehicle drive shaft with high flexibility includes two relatively rotatable tubes (12, 14) connected by elastomeric bushes (15) arranged to be stressed in shear when the shaft carries torque. The shaft further includes elastomeric elements (21) arranged to be compressed between radially extending portions (20, 22) of the tubes only after a pre-determined relative rotation of the tubes has been effected. Thus the drive shaft stiffness increases for loadings in excess of a pre-determined value to give a low rate at low loadings but restricted deflections at high loadings. <IMAGE>
Patent GB-2048753-A (GB)
Title: Hammer Drill
IPC: B23B45/16
Filed: 1980-03-05
Abstract: Drive motor 5 rotates working cylinder 14, having a holder 14b for tool 20, by way of pinion 6, toothed wheel 7, drive shaft 8, splines 8a and toothed rim 14a. Rotary disc 9 on the drive shaft 8 engages with and serves to reciprocate actuating piston 15 which transmits impacts to a percussion piston 16 which in turn impacts the tool 20, by way of an air cushion 17. The amplitude of reciprocation of the actuating piston 15, and thus the percussion force transmitted to the tool depends upon the swivelled position of the rotary disc 9 which is swivelably mounted on the drive shaft 8 by means of a swivel pin 10. Variation of swivel angle is achieved by pressing inwards of the tool 20 to displace axially the working cylinder 14 and thus cause corresponding movement of an annular adjusting member 12 along the drive shaft 8. When spring 18 returns the cylinder 14 to its non- pressed-in position, upon removal of the tool 20 from a workpiece, the disc 9 is returned to a neutral position under the action of a spring 11. <IMAGE>
Patent GB-2054798-A (GB)
Title: Fluid pressure actuators
IPC: F15B15/08
Filed: 1980-06-20
Abstract: A fluid pressure actuator assembly comprises a pair of coaxial pistons 10 between which is an elongate body 11 having a toothed rack 12 on one side, for engaging a pinion 21. Each piston 10 is rigid with a stem 13 slidable with limited lateral freedom in the body 11. The body is guided at spaced locations therealong by support means 19, 19. Assemblies involving a single piston only are also described. <IMAGE>
Patent GB-2053567-A (GB)
Title: Photodiode
IPC: H01L31/11
Filed: 1980-07-03
Abstract: In a photo-diode containing a rectifying barrier (a PN-junction or a metal-s.c. junction) an absorption layer (p-Ge) is provided, having the same conductivity type as, but of a smaller band gap than, the conductivity type and the bend gap respectively of the adjacent s.c. layer forming the rectifying barrier. Typically, the s.c. layer of the rectifying barrier is of Si, Ga, As or InP and the absorption layer is of Ge intermediate Si-Ge layers may be provided to accommodate mismatch between the s.c. layer and the absorption layer.   <IMAGE>
Patent GB-2048301-A (GB)
Title: Wax antiadhesive composition
IPC: C09D5/08
Filed: 1979-11-16
Abstract: This composition contains in aqueous medium, at least a self emulsible wax having a melting point between 45 and 110`C. A preferred embodiment comprises the use of a mixture of a synthetic wax of vegetal origin, a mineral wax and a micro cristalline wax. This composition, applied onto a support such as a wall is appropriate as a protection coating against bill-sticking, penetration and hooking of graffitis and/or paint and against adherence of dust and various polluting agents.
Patent GB-2057777-A (GB)
Title: A starter for an internal combustion engine
IPC: H02K7/08
Filed: 1980-07-29
Abstract: A starter for an internal combustion engine comprising a starter motor (1) and a starting pinion (8) with a meshing drive (9). A pole housing (2) of the starter motor (1) and a drive bearing bracket (11) which surrounds at least the meshing drive (9) are secured directly to one another at their end faces. At least resilient edge portions (18) or (19 Fig. 3 not shown) of a substantially disc-shaped intermediate bearing bracket (14) are clamped between the end faces (10 and 16) of the pole housing (2) and the drive bearing bracket (11). <IMAGE>
Patent GB-2092269-A (GB)
Title: Automatically Operating Fluid Distributing Apparatus
IPC: A01G25/16
Filed: 1981-01-05
Abstract: Inlet fluid impinging on a turbine 2 rotates a cylinder 7 to index apertures 9 in turn to a plurality of valve to controlled outlets 15. Toothed segments 8 are proved for each aperture 9 and hence a plurality of cam followers 18, the number of these engaging the segments can be varied by rotating a said valve 10 to control the length of time the associated aperture 9 is aligned with a said valve 10. <IMAGE>