baber/WOPTO huggingface dataset:
Patent GB-2046704-A (GB)
Title: Upright for lift truck
IPC: B66F9/20
Filed: 1980-04-02
Abstract: A lift truck upright has a fixed upright section (20), a telescopic upright section (24), and a load carrier (30) mounted on the latter section. An asymmetric lift piston-and-cylinder assembly (54) is located adjacent one side of the upright and in an elevated position, which provides improved overall operator visibility through the upright, and is operatively connected to the telescopic upright section (24) by means of a pair of lifting chains (90, 100), which may be arranged as shown. A second cantilevered piston-and- cylinder assembly (114) is mounted centrally of the telescopic upright section (24) for elevating thereon the lifting carriage (30) to a full free-lift position. Both cylinder assemblies (54, 114) are one-half the effective height of the upright when it is in a collapsed condition. <IMAGE>
Patent GB-2052767-A (GB)
Title: Single Lens Repeater
IPC: G03F7/20
Filed: 1980-05-06
Abstract: Apparatus for masking operations in processing of semiconductor wafers. A step and repeat system is used to expose the wafer 11 to an image contained on a reticle 13. The reticle also contains an alignment target which is projected onto the wafer adjacent the circuit pattern. The stage holding the wafer is stepped to produce a desired array of circuits and targets on the wafer. Subsequently a reticle 13 is used which contains a different image together with an alignment pattern that is shaped complimentary to the alignment target of the first reticle. When the wafer is stepped to each array location, a low intensity light source 42 illuminates the alignment target on the wafer through the same lens 14 used for the image exposure. The image of the alignment target is viewed on the wafer and the corresponding alignment image on the reticle, simultaneously. The stage is moved to achieve alignment. The reticle image is projected onto the wafer, overlapping the previous image. The wafer is then stepped and the process repeated at other array positions. <IMAGE>
Patent GB-2092411-A (GB)
Title: Telephone answering machines
IPC: H04M1/654
Filed: 1980-06-23
Abstract: A telephone answering machine has a loudspeaker which enables a user to listen to a caller on a telephone line. The machine senses when a telephone receiver is brought into use, and disables the audible output in response thereto. In the preferred embodiment, the audible output is disabled by arranging for the machine to drop the telephone line. The sensing of the receiver being brought into use is preferably achieved by storing a voltage corresponding to that on the telephone line, and detecting when the voltage on the telephone line drops below the stored voltage. This arrangement is also used to detect when the caller has hung up.
Patent GB-2056489-A (GB)
Title: Tungsten carbide-based hard metals
IPC: C22C29/00
Filed: 1980-06-27
Abstract: A tungsten carbide-based hard metal comprises 75-97 weight % tungsten carbide. The balance is binder. To avoid using cobalt binder as is conventional, a typical binder composition is 14 weight % manganese, 21/2% carbon, 5% nickel and balance iron.
Patent GB-2055084-A (GB)
Title: Bagging check-out counter
IPC: B65B43/12
Filed: 1980-07-04
Abstract: A check-out counter whereat bags are automatically supplied and opened, said bags being stored in strip form with handles of one bag being connected to the base of the next bag, includes a bag feed arrangement (4, 5, 6, 8) for advancing and lowering the leading bag into a bag opening and filling compartment in the counter, a clamp (9) which cooperates with a conveyor (8), forming part of the bag feed arrangement, to separate said leading bag front the remainder of the bag strip, and movable and fixed vacuum jaws (10, 11) for engaging and opening the bag in said compartment. <IMAGE>
Patent GB-2054967-A (GB)
Title: A switch for a vehicle mirror
IPC: H02B1/044
Filed: 1980-07-04
Abstract: For ease of mounting, a switch 1, which enables a vehicle driver to adjust the vehicle's mirrors, is formed in two parts namely a casing 3 and a face plate 4 both of which are fastened to a respective side of a support 2, which may be, for example, a vehicle's dash board. For fastening the casing 3 and the face plate 4 to the support 2, appropriate screws extend through hollow pegs 6 in the face plate 4, through respective apertures 5 in the support 2 and respective bearing parts 7 in the casing 3 in alignment with the pegs 6. The casing 3 also has an operating peg 10, extending through an aperture 15 in the support 2 and carrying a switch operating button 12. <IMAGE>
Patent GB-2061174-A (GB)
Title: Drawn fleece materials
IPC: D04H1/485
Filed: 1980-09-15
Abstract: A formed product produced by needling a fibrous web containing at least 10% by weight of fibres having an elongation at break of at least 100% at a temperature 150 C degrees below the melting point of the said fibres, heating the resultant needled felt at a temperature at or above that at which the said fibres have an elongation at break of at least 100%, and draw-forming the heated felt. These products can be used as filter materials. Figure 1 shows a deep drawn double layer filter for oil/ water separation whilst Figure 2 shows an air conditioning filter comprising a non-woven needed fabric 4 having deep drawn recesses 5 filled with absorbents and bactericides 6 and covered by an air permeable non-woven sheet 7. Fibres suitable for use in the invention are acrylonitrile-PVC copolymer fibres, undrawn polyester fibres, polyamide fibres or PVC/PVA copolymer fibres. The fibres may be mixed with other perhaps thermoplastic films and may be bonded with a thermoplastics binder. <IMAGE>
Patent GB-2060167-A (GB)
Title: Improved Instrumented Remote Center Compliance Device
IPC: G01B11/27
Filed: 1980-09-16
Abstract: A remote center compliance device (10) having an operator member (16) and a remote compliance center (70) near the end of the operator member, including one or more translational displacement sensors (58, 60) proximate the operator member (16) for sensing displacement in one or more degrees of freedom of the operator member. <IMAGE>
Patent GB-2084401-A (GB)
Title: Flow responsive switch
IPC: H01H35/40
Filed: 1980-09-30
Abstract: A flow responsive switch comprises a housing (1) having a liquid inlet (2) and a liquid outlet (3), and a magnetic float (4) received within the housing (1). The float (4) is movable in a translational fashion between a first position in which it floats when liquid is present in the housing and a second position which it adopts when liquid is absent from the housing. A magnetically responsive contact unit (8) is responsive to the position of the magnetic float. Pins (7) ensure that the device allows liquid to flow through the housing past the float at least when the float is in the first position. One particular application of the switch device is in monitoring the supply of processing chemicals to a photographic processing apparatus. <IMAGE>
Patent GB-2060878-A (GB)
Title: Improved explosimeter
IPC: G01N25/50
Filed: 1980-10-10
Abstract: The explosibility of an atmosphere which may contain a combustible gas or vapour or mist or aerosol is sensed by drawing a known volume of the atmosphere through a filter (14) and into a container (16) by retraction of piston 20; in a safe environment drawing the sample by pump 32 through the filter which is heated by insertion into coils 44, 46, air drawn in at 22, completely oxidising any combustible material present; and sensing the quantity of oxygen required for complete combustion. The concentration of combustible material as a percentage of the lower explosive limit can be approximately determined even when the combustible material is unknown. <IMAGE>
Patent GB-2063513-A (GB)
Title: A speed governor with fuel injection pumping apparatus
IPC: F02D1/12
Filed: 1980-10-27
Abstract: A pump control member 12 as axially movable to determine the fuel quantity supplied. The control member 12 must be positioned for starting and should be maintained at a predetermined position until a servo mechanism 28 is operative. A first spring 47 acts on the control member to it in a fuel reducing direction and a second spring 50 in the opposite direction. A stop surface 49 is engageable by a collar 48 and a head 46 on the control member is urged towards the collar 48 by the first spring. Spring 50 exerts the greater force so that in the absence of any force exerted from the speed responsive means the collar will be held against the stop. A servo valve 37 in a piston 33 and cylinder 29 is operated by a centrifugal speed sensor 15 via a bell crank 24. The piston receives oil pressure via a port 31 and moves a bell crank 36, 26 in accordance with the valve position. The effect of a manually adjusted loading spring 19 is varied by movement of a roller 20 via a lever 22. <IMAGE>
Patent GB-2063232-A (GB)
Title: A process for recovering pure hydrogen sulphide
IPC: C01B17/16
Filed: 1980-11-07
Abstract: Pure hydrogen sulphide is recovered from a gas washing solution to be regenerated which contains hydrogen sulphide and impurities such as hydrocarbons, carbon dioxide and mercaptans by desorbing the gases dissolved in the washing solution in stages whereby the impurities are desorbed in a first stripping stage and the pure hydrogen sulphide in a second stage.
Patent GB-2057035-A (GB)
Title: Device and process for driving galleries with a shield
IPC: E21D11/10
Filed: 1978-09-26
Abstract: In the driving of galleries with a shield, the revetment of the tunnel is introduced by concreting on site by step immediately behind the shield. In order to avoid interrupting the advance of the shield during concreting, besides the fixed rear part of the shield (6), a mobile part has been provided made up of a set of lamellae (7). In principle this part remains still during the continuous advance of the shield, and it will be pulled forward in the shield lamella per lamella only at the time of concreting the segments, and it will then remain still with respect to the rock, until the new concreting step.   <IMAGE>
Patent GB-2073037-A (GB)
Title: Apparatus for treating effluent containing solid material
IPC: B30B9/20
Filed: 1981-03-20
Abstract: Apparatus and method for separating solid and liquid fractions from animal waste e.g. cow slurry preferably comprises two stages in which slurry is fed to the nip between a first perforated drum (8) supported internally by intermediate plates and mounted in bearings by end plates and a resilient rubber coated roller (12), the solids are scraped off the drum by a scraper blade (63) and allowed to fall onto the surface of a second drum (20) similarly internally supported and mounted and are then carried between the nip of this drum and a second rubber coated roller (24) and the solids are finally scraped off (64) and fall out of the apparatus. The machine is preferably arranged so that the second drum rotates at a slower speed than the first drum because this gives better liquid removal. Troughs (32, 34) beneath the drums collect the liquid. The first drum may have perforations made by inward punching, which the second drum perforations are punched outwards to present a rough surface. <IMAGE>
Patent GB-2095191-A (GB)
Title: Anti-theft or anti-slip attachment for fitting to vehicle wheels
IPC: B60R25/09
Filed: 1981-03-24
Abstract: An anti-theft/slipping device comprises a hub (1) and three radially extending arms (10, 11 and 12) which are disposed at an angle to each other and are bent to extend over the periphery of a vehicle wheel. Two arms (10 and 11) are permanently mounted on the hub and the third arm (12) is releasably mounted to permit removal of the device. By providing one of the arms with a short radial extension 18, the device can be used as a vehicle security device. Alternating bent-over portions of the arms can be provided with outwardly facing serrations to form snow-grips.
Patent GB-2096155-A (GB)
Title: Multi-stage anionic polymerisation of caprolactam
IPC: C08G69/18
Filed: 1981-04-07
Abstract: A process for producing polyamides or copolyamides based on 6-caprolactam, optionally on its mixtures with lactams of  omega -amino acids with 4 to 13 carbon atoms and their modified types, by continuous activated anionic polymerization of lactams above melting temperature of the mixture of monomer and polymer under adiabatic and quasi-isothermal conditions and for final polymerization below the melting temperature of the polymer. The process is carried out in four stages. In the first stage the lactam is dehydrated usually in a wiped-film evaporator, in the second stage prepolymerization and degassing of the reaction mixture are realized under mixing, after finishing the polymerization again in stirred device in the third stage, final polymerization of solid polymer takes place below its melting temperature in the last stage.
Patent GB-2075035-A (GB)
Title: Methacrylate Based Dental Compositions
IPC: C08F4/40
Filed: 1981-04-29
Abstract: A polymerizable composition particularly for dental use, comprises at least one methacrylate monomer having 2 to 4 polymerizable double bonds, from 0 to 400% based on the monomer of inorganic particulate filler, from 0 to 5% based on the monomer or silane coupling agent, an effective catalyst-activating amount of accelerator comprising copper ion and from 0.5 to 5.0% based on the monomer of (a) an organic peroxy compound and (b) reducing agent for said peroxy compound or a mixture of (a) and (b) wherein the concentration of (b) does not exceed 40% of the total quantity of (a) and (b).
Patent GB-2099032-A (GB)
Title: Building blocks
IPC: E04B2/08
Filed: 1981-05-15
Abstract: Upper and lower building blocks with front projection 21, 22 and at least a lower rear projection 32 are arranged to touch at the front but not at the rear where there is a gap 35. The gap 35 allows the blocks to be relatively tilted so as to level them whilst projection 32 assists in retaining mortar. An upper rear projection 31 may be provided. Mutually engaging surfaces of the front projections 21, 22 slope forwardly and downwardly. The top and bottom surfaces of the building blocks may have further intermediate projections (53, Figs. 9, 10 not shown). <IMAGE>
Patent GB-2085306-A (GB)
Title: Breathing apparatus
IPC: A62B9/02
Filed: 1981-10-12
Abstract: A single stage demand valve for passing air from a cylinder of compressed air to a face mask includes a main lung operated valve member 12 and a by-pass valve 20 having a sized flow orifice 37. The by-pass valve is a constant pressure reduction valve, having a valve member in the form of a piston 23, whereby variations in air pressure in the breathable gas from the cylinder are compensated ensuring that the desired flow rate of air through the by-pass valve is maintained without repeated adjustment of the by-pass valve, as in the prior art. The by-pass valve is opened and closed manually by turning knob 39. <IMAGE>
Patent GB-2095349-A (GB)
Title: Idler roller
IPC: B65G39/09
Filed: 1981-12-22
Abstract: An idler roller 1 for supporting the belt of a belt conveyor comprises a central spindle 2, a barrel 3 rotatably supported from the spindle 2 by a pair of spaced apart rolling bearings 4, one located towards each end 5 of the roller 1, a spring loaded locking sleeve 16 normally retained against the spring action, in a non-locking position, by a fusible element 26, and upon melting of the fusible element 26, due to a rise in temperature of the roller due to bearing failure, being displaceable under the action of the spring 17 to engage mechanically a portion of the barrel 3 to halt rotation of the latter with respect to the spindle 2. <IMAGE>
Patent GB-2092881-A (GB)
Title: Footwear studded sole units
IPC: A43B13/12
Filed: 1982-01-22
Abstract: A sole unit for a sports e.g. golf shoe has a flexible sole layer 10 to which is bonded a layer 11 of reinforcing material. An arrangement of inserts or studs 13 extends through the sole layer 10 and the layer 11 of reinforcing material. The reinforcement material has a greater tear strength than layer 10, but is no less flexible than layer 10. <IMAGE>
Patent GB-2098170-A (GB)
Title: Silage supply truck
IPC: A01F29/00
Filed: 1982-03-05
Abstract: Silage supply truck having a rotatable loosening roller 7 arranged along one side of the truck adjacent a discharge opening 20 and a tiltable loading platform 21,22 arranged along the opposite side for loading silage blocks 15 into the truck. <IMAGE>
Patent GB-2097319-A (GB)
Title: Manufacturing balls
IPC: B29C63/22
Filed: 1982-04-20
Abstract: This invention relates to a cricket ball, hockey ball or the like of the kind which comprises a pair of hemi- spherical cups 10,11 which enclose a core 12, each cup having at least one row of stitches 13 which extend around its periphery adjacent to the edge of the cup and which project outwardly therefrom, the stitches of the two cups being arranged to form a seam when the ball is completed. The method of manufacturing such a ball comprises providing at least one strip 14 of synthetic resin material which is wrapped round the core 12 to form a band which will lie beneath the seam 13. The ball is assembled by applying adhesive to the inter-engaging surfaces of the core and the cups and then softening said strip 14 and applying pressure to the assembly to effect adhesion of the core to the two cups, the softening of the strip 14 enabling the synthetic resin material to flow on to the adjacent part of the interior of the cups and into and between the stitches thereby providing further bonding between the core 12 and cups 10, 11. A further resin strip 15 may also be utilized along with the strip 14. <IMAGE>
Patent GB-2122366-A (GB)
Title: Automatic liquid-crystal light shutter
Inventor: TONG-SHEN HSIEH
IPC: G02F1/1347
Filed: 1982-06-03
Abstract: A liquid-crystal light shutter includes two photocells one behind hole 13b responds to direct light while the other behind hole 13a and black painted central portion 14a responds to light from the side. An electrical circuit comprising a NAND gate integrated circuit forms an oscillator, and the outputs of the oscillator are gated to liquid crystal layers in dependence upon the output of the photocells whereby the shutter automatically blocks light when strong direct light falls on it. <IMAGE>
Patent GB-2107008-A (GB)
Title: Multi-ratio power transmissions
Inventor: WILSON ANDREW GORDON
IPC: F16H3/66
Filed: 1982-07-28
Abstract: A multi-ratio power transmission includes multi-ratio epicyclic gearing interconnecting an output member 12 and input members 13, 14 coaxial with the output member 12. The gearing is rotatably supported at first and second locations at opposite ends of the gearing. The output member 12 is supported by a first bearing 15 in a stationary support 16 at the output end of the gearing (1, 2, 3), and the output member 12 extends within and through the gearing to be supported in the inner, first input member 13 in the region where the input members pass through a further stationary support 20 for the outer, second input; member 14. Clutches C1 and C2 enable an engine driven shaft 11 to be connected to the input members 13 and 14. The planet carrier L1 of the first epicyclic train 1 of the gearing is secured to the output member 12 and has an extension 26 forming a bearing for the planet carrier L2 of the second train. <IMAGE>
Patent GB-2125492-A (GB)
Title: Fluid seals for marine propulsion shafting
Inventor: HILL ALFRED
IPC: F16J15/32
Filed: 1982-08-16
Abstract: A fluid seal for a rotating shaft 2 comprises a stationary annular surface 1, a resilient annular seal 4, and a ring 3 which is rotationally stationary relative to the surface 1. The seal 4 is constrained between the shaft 2 and the ring 3. The ring 3 is axially slidable and has an angled face which is urged against the seal 4 by means of a spring 5 thereby transmitting the force to annular surface 1 and the shaft 2. The seal may be urged against a stationary surface and the side face of a rotatable collar by a spring loaded member, the stationary surface and side face being at right angles to each other. The surface of the ring which engages the seal may comprise the arc of a circle or section. The ring may be biassed by a garter spring or an annular sheet metal spring. The seal may be other than circular in section. <IMAGE>
Patent GB-2105679-A (GB)
Title: Improvements relating to cranes
Inventor: ACTON JOHN EDWARD
IPC: B66C23/48
Filed: 1982-08-26
Abstract: A crane comprises a post (11), a triangular link member (15) pivotally connected to the post at one of its corners (17) and pivotally connected to a jib (12) at another of its corners (18). A ram (14) is pivotally connected (16, 16a) between the post and the jib to cause the jib to be moved angularly, in use. At the third corner of the link member (15) a removable lock pin (19) can be fitted so that the link member moves with the jib (12) as the jib is retracted by the ram to its lowermost operating position, as shown. Thereafter removal of the pin (19) from the third corner allows the jib (12) to be pivotted relative to the link member (15) so that it assumes a parking position substantially parallel to the post (11). The pin (19) can then be passed through aligned holes (20) in the link member (15) and jib (12) to lock the jib to the link member. <IMAGE>
Patent GB-2110107-A (GB)
Title: Activated carbon filter
Inventor: KRECKL HERBERT
IPC: B01D53/02
Filed: 1982-09-30
Abstract: An activated carbon filter of flat mode of construction for use in a vapour removal hood is intended to avoid premature saturation of the carbon by residues and overcome the problem, present in a horizontally disposed filter, that suction effect in the filter centre can be greater than at the periphery. The filter comprises a frame (1), the internal space of which is subdivided into chambers by walls (4, 5) serving as air guide elements. The walls (4, 5), at least to both sides of a notional suction axis (A), are each arranged inclined in direction of the axis. <IMAGE>
Patent GB-2131455-A (GB)
Title: Improvements in or relating to the production of iron in a blast furnace
Inventor: POWNER ROBERT FREDERICK
IPC: C21B5/00
Filed: 1982-12-08
Abstract: The invention provides a method of producing iron in a blast furnace including the steps of adding coal fines to water so as to produce a suspension of the coal fines in the water by means of a suspension agent, and injecting the suspension via a lance through a tuyere of the blast furnace.
Patent GB-2113688-A (GB)
Title: Diphosphonic acid derivatives, process for their preparation and pharmaceutical preparations containing them.
Inventor: BIERE DR HELMUT
IPC: C07F9/655
Filed: 1983-01-26
Abstract: Diphosphonic acid derivatives of the general formula   <IMAGE>  in which  n is 0, 1 or 2,  R<1> is hydrogen or (C1-4) alkyl,  R<2> is hydrogen or (C1-4) alkyl, and Ar is optionally substituted phenyl, biphenyl, naphthyl or thienyl, processes for their preparation and their use as anti-inflammatory and anti-arthritic agents.
Patent GB-2116898-A (GB)
Title: Device for coupling a shaft furnace tap hole drilling rod to the working tool of a drilling machine
Inventor: MAILLIET PIERRE
IPC: C21B7/12
Filed: 1983-02-03
Abstract: A coupling device, for coupling a shaft furnace tap hole drilling rod 14 to a drilling machine for the extraction of the rod 14, includes piston operated jaws 22, 24 slidable inside a housing 12 from a position out of engagement with a drilling rod 14 to a position in gripping engagement therewith. The pistons 36, 38 for pushing the jaws 22, 24 are housed in the chambers 32, 34 of a block 10. They are driven, against their respective spring force, such as by feeding compressed air into the chambers 32, 34. The jaws 22, 24 thus slide and grip the rod 14 whereafter the entire device can be moved leftwardly (as seen in the figures) to extract the rod 14. The jaws may be in the form of slidable gripping rollers or pivotable cams. The jaws are made of a material which is harder than that of the rod 14. <IMAGE>