baber/WOPTO huggingface dataset:
Patent GB-1232054-A (GB)
IPC: E04C5/12
Filed: 1968-10-02
Abstract: 1,232,054. Cable anchoring means. W. M. SLATER. 2 Oct., 1968 [l2 Oct., 1967], No. 46661/68. Heading DIT. [Also in Division E1] A method of stressing a reinforcing tendon in a structure wherein the tendon is retained at at least one free end by an anchoring device which bears against a member under the tensile forces imposed on the tendon, comprises applying a tensile load to the tendon to effect a substantial elastic reduction in the cross-sectional dimensions of the tendon, moulding an anchoring onto the tendon while the crosssectional dimensions of the tendon are elastically reduced by the tensile load, and then removing the tensile load to permit the elastic forces in the tendon to expand its diameter in the anchoring deviceto effect a mechanical bond therewith.  Fig. 3 shows the tendon subjected to tension whilst the anchoring device is moulded therearound within a casing 42. The casing may have reinforcing ribs extending into the moulding. Fig. 8 shows how a jack 78 acts on a member 76 to stress the tendon 12 to space the moulded member 10 away from a bearing plate 70 on the structure 72. Thereafter a split sleeve 80, Fig. 9, is placed between the member 10 and the plate 70 to maintian said stress when the jack is removed. In Fig. 10 the anchoring device 10 has external threads 34. One end of an internally threaded coupler 88 is screwed onto the anchoring device 10 and the other end of the coupler 88 is screwed onto the threaded end of a pull rod 90 connected to a jacking device 92. The jack is used to stress the tendon 12 and anchoring shims are then located between the anchoring device 10 and a bearing plate 70 to maintain said tension when the jack is removed.
Patent GB-1233040-A (GB)
IPC: A47J43/22
Filed: 1968-12-16
Abstract: 1,233,040. Container. D. G. WARD. 30 Dec., 1969 [16 Dec., 1968], No. 59604/68. Heading A4A. A combined strainer and storage container 1 with a handle and spout, for cooking oil, supports on the rim of its open end a tray 4 which extends downwardly into the vessel. The base 5 of the tray is perforated with holes of up to 1¢ mm. diameter and concave at its lower surface. A lid 7 fits over an upwardly extending rim of the tray 8 and may be removed with the tray by means of a stem which may be attached centrally to the tray and passing through an aperture in the lid.
Patent GB-1234256-A (GB)
IPC: B04B1/20
Filed: 1968-07-16
Abstract: 1,234,256. Centrifugal separators. I. KRUGER A/S. 16 July, 1968 [19 July, 1967], No. 33773/68. Heading B2P. In a screw centrifuge, Fig. 1, for separating a suspension containing sludge into liquid and solids, a feed conduit 25 for the suspension to be separated opens into a hindrance-free space within a part 24 of the centrifuge drum 11 in which the screw conveyor 20 does not extend, the part 24 being provided with a guiding surface obliquely inclined to the drum axis for guiding the solids towards the screw conveyor, and with one or more outlets 28 for solids-free liquid. Spokes 19 and 22 connect the screw conveyor 20 and the drum 11 to their respective shafts 16 and 12 which are coaxial and driven at different speeds. The feed conduit 25 connects with a passage 26 in the shaft 12 which communicates with the drum interior through openings 27. Chemicals for treating the suspension may be introduced via a feed line 33 communicating with a passage 32 in the shaft 12 which opens into the drum interior at 34. The solids guiding surface is provided by the inner surface of the frusto-conical part 24 of the drum 11. The outlets 28 for purified liquid communicates via pipes 22 with a channel 30. The solids are discharged by the screw conveyor through an opening 21 in the drum which communicates with a channel 35. In a modification, Fig. 2, the guiding surface is constituted by the inner surface of a frustoconical member 47 mounted on the drum shaft 44 and purified liquid outlets 52 are provided in the drum end plate 43 which may be flat, convex or concave. The generatrix defining the oblique guiding surface may consist of a smooth curve; alternatively, a number of guiding surfaces may be constituted by a generatrix having angles or bends.
Patent GB-1238977-A (GB)
IPC: C07D235/32
Filed: 1969-10-28
Abstract: 1,238,977. 1 - Carbamoyl - 2 - alkoxycarbonylamino - benzimidazoles. E. I. DU PONT DE NEMOURS & CO. 28 Oct., 1969 [8 Nov., 1968], No. 52854/69. Heading C2C. Benzimidazoles of the formula wherein R is a methyl, ethyl or isopropyl group and R 1  is a C 1-8  n-alkyl group, are obtained by reacting the corresponding alkyl 2-benzimidazolecarbamates with isocyanates (R 1 NCO) in liquids selected from acetone, methylethyl ketone, 2-ethoxyethanol, dimethylformamide, dimethylacetamide, dimethylsulphoxide and methyl isobutyl ketone, optionally in admixture with water. Reference has been directed by the Comptroller to Specification 1,193,462.
Patent GB-1251041-A (GB)
IPC: G01P3/48
Filed: 1968-01-25
Abstract: 1,251,041. Recording apparatus. SMITHS INDUSTRIES Ltd. Jan. 7, 1969 [Jan. 25, 1968], No. 4054/68. Heading G1J. [Also in Division G3] The chart drive mechanism of a chart recorder for use in a vehicle is driven by a stepping motor energized by pulses in coils 40, 41 derived from drive and trigger coils 24, 25 co-operating with a magnet (not shown) for maintaining the oscillations of a balance of a clock. A trigger pulse in the coil 25 renders a transistor 26 conducting to produce a drive pulse in the coil 24, which acts upon the balance and is also applied, via an emitter follower 15 including a transistor 32 and pulse shaping circuitry including transistors 34, 37 and a diode 36 to a bi-stable circuit including transistors 38, 39 the outputs of which pass through the coils 40, 41.
Patent GB-1264077-A (GB)
IPC: G11C11/06
Filed: 1970-06-08
Abstract: 1,264,077. Magnetic storage apparatus. SIEMENS A.G. 8 June, 1970 [9 June, 1969], No. 27534/70. Heading H3B. [Also in Division G4] The read out E 2  from a matrix store is passed, together with the read out timing pulses E 1 , to a pair of threshold devices S1, S2 having different thresholds so chosen that a read out signal having a correct signal level triggers both or neither of the threshold devices and appears at the output A 2  of AND gate G2 whereas a read out signal having an incorrect level triggers only one of the devices, S 2 , and appears at the output A1 of AND gate G1 as. an error signal. The arrangement allows spurious noise and parasitic voltages to be eliminated from the read out of a high density magnetic core or thin film store and the Specification states that redundancy coding, e.g. parity bits, may be used to correct -any errors which are. signalled.
Patent GB-1264190-A (GB)
IPC: C09C1/42
Filed: 1969-10-09
Abstract: 1,264,190. Oxidizing clay. FREEPORT SULPHUR CO. 9 Oct., 1969, No. 49627/69. Heading C1A. The reflectance of clay is increased by the oxidation of a dispersed aqueous clay slurry at a pH of at least 5À5. Suitable oxidizing agents for this process are sodium hypochlorite, chlorine in sodium hydroxide, sodium hypobromite, bromine in sodium hydroxide and hydrogen peroxide. The process is usually carried out between 0 and 100‹ C. The clay slurry contains generally 0À05 to 0À5% by weight, based on the dry clay basis, of dispersant, such as sodium silicate, tetrasodium pyrophosphate or sodium tripolyphosphate. The clay may then be reduced or bleached, for instance with sodium dithionite.
Patent GB-1266028-A (GB)
IPC: H04N3/185
Filed: 1969-05-19
Abstract: 1,266,028. Deflection circuits. RCA CORPORATION. 19 May, 1969 [22 May, 1968], No. 25382/69. Heading H3T. [Also in Division H2] In a deflection and EHT generating circuit for a TV receiver current is supplied from a voltage source B + via a variable reactance 75 to an energy storage capacitor 35 during a trace portion of each deflection cycle and a semiconductor switch 39 couples said energy storage capacitor 35 to deflection coils 33 during at least a retrace portion of each deflection cycle and includes means for varying the reactance 75 in response to variations in EHT so as to maintain image size substantially constant. As shown, horizontal deflection coil 33 is supplied with deflection current from a circuit of the type described in Specification 1,260,375 but in which thyristor 27 is connected to a tapping on the primary winding 53a of a transformer so as to compensate for the difference in voltage across diode 29 and thyristor 27 when conducting. The exchange of energy between the E.H.T. transformer 53 and the deflection circuit is so arranged that variation of beam current in the cathode-ray tube 13 will result in a variation in deflection amplitude and a change in E.H.T. voltage. If the ratio of the change of deflection current to that of the E.H.T. voltage is between one half and one, then the image width tends to remain constant despite variation in beam current. The image width is further stabilized against variation in supply voltage by comparing the voltage across capacitor 31 with that of a Zener diode 71 and amplifying the result by means of a transistor 73 which controls a saturable inductor 75 so as to vary the inductance across winding 47 and hence compensate both for change in deflection amplitude and in E.H.T. voltage. The Zener diode 71 may be connected in the emitter circuit of transistor 73 or omitted.
Patent GB-1289550-A (GB)
IPC: E01C11/10
Filed: 1969-12-30
Abstract: 1289550 Seaming HAKKO CO Ltd 30 Dec 1969 63351/69 Heading B5K [Also in Divisions E1 and F2] A method of joining constructional members 2, 3 comprises impregnating a foamed body 1 with a binder, compressing the body between the members to squeeze out the binder 4, and allowing the binder to set. The body is positioned in a groove in one member and compressed by a rib on the other. The binder may be caused to set by moisture. The members form roads, tunnel linings, pipe joints or manholes.
Patent GB-1290628-A (GB)
IPC: F01L9/11
Filed: 1971-04-22
Abstract: 1290628 Valves M J BERLYN 22 April 1971 [8 Sept 1970] 10783/71 Heading F2V [Also in Division F1] An hydraulic actuating means for the spring returned admission valve 20 of a reciprocating expansion motor (not shown) comprises a slave cylinder 50 and a slave piston 56 having operative connection with the admission valve, a plunger pump 27, rotary cam means 25 operable to initiate displacement of the plunger of the pump at a constant angular position of the cam means to deliver oil under pressure from the pump to the slave piston, an automatic non- return filling valve 44 for the plunger pump and controllable-spill means 34 adapted to spill oil from the pump at any desired point in the delivery stroke of the plunger of the pump. The vertical adjustment of the control sleeve 35 affects only the closing point of the valve 20.
Patent GB-1295522-A (GB)
IPC: G09B5/14
Filed: 1970-02-11
Abstract: 1295522 Teaching laboratory switching unit D MURRAY and I F O'NEILL 19 April 1971 [11 Feb 1970] 6510/70 Heading G5G A switching unit is disclosed for use in a teaching laboratory with inductive loop communication between the pupils and a central tape recorder whereby the teacher may communicate with individual pupils. As shown a plurality of sets of ganged switches such as A, B, C are provided, the first two switches of each set being two-way switches and the others each one way. Each set of switches has an output OT1, OT2 or OT3 for connection by a plug or jack to a respective pupil's receiving device. A similar plug or jack connection IT is provided for connection of the teachers headset. With the switches as shown there is no connection between the teacher and any pupil since in each case the third switch of each set (A3, B3 &c.) is short circuiting the terminals OT1, OT2 &c. If now the teacher moves the ganged switches of a set, say set B, to the other position, the teacher's head set is connected into circuit with the pupil's receiving device connected to terminals OT2 and a tell tale lamp TT2 is illuminated. Only one teacher-to-pupil connection can be maintained at a time since movement of switches B1 and B2 disconnects the teacher from lower sets of switches and movement of a higher set of switches would interrupt the connection to set B. The inductive loop is indicated at L and the tape recorder at AS.
Patent GB-1297453-A (GB)
IPC: B24B3/08
Filed: 1971-04-13
Abstract: 1297453 Form-cutters; grinding LENINGRADSKY METALLICHESKY ZAVOD IMENI XXII SIEZDA KPSS 13 April 1971 9171/71 Heading B3D and B3K A form milling cutter comprises a relief angle aN‹ depending on the angle #‹ between the direction of cutting feed and the tangent to the profile of the cutting edge, and is found from the formula where K=constant value depending on the type of machined material.  a max = thickness of cutting measured in the direction of feed mm. The flank of the cutter is ground by a toroidal grindstone 5 rolling around the cutting edge and rotating in the plane located at an angle #‹ to the normal, determined by the magnitude of the relief angle αN with the aid of the following relation:- where αO = relief angle of the cutting edge in the rotation plane of the grindstone. Grindstone 5 Figs. 6, 7, is set in the machine higher than the axis of the cutter 1 by the value H thus providing a relief angle αO. The cutter is now set in centres 6 secured to a swivelling bed 7. A master 8 corresponding to the form of cutter is mounted on the bed and a follower 10 is carried by a tooth locator 9. Grindstone 5 can be turned through #‹ by means of a rack and pinion 11, 12. Rack 11 also interacts with a master 13 which is fixed relative to the cutter, and whose profile ensures the turning of the grinding wheel through #‹. Due to the swivelling of bed 7 with the cutter and the master form around the pin 10, the toroidal surface of the grindstone rolls around cutting edge 4.
Patent GB-1304013-A (GB)
IPC: C08F2/00
Filed: 1969-04-01
Abstract: 1304013 Four-component catalyst for vulcanizable copolymers INTERNATIONAL SYNTHETIC RUBBER CO Ltd 1 July 1970 [1 April 1969] 17026/69 Heading C3P An alpha olefin is copolymerized with a cyclic olefin (including diolefins) in the presence of (a) an organolithium compound, (b) an aluminium trihalide, (c) a halide or oxyhalide of molybdenum or tungsten, and (d) an organic or siloxy compound of V, Ti or Zr not containing a metalhalogen bond, or a vanadium oxyhalide or a vanadyl hydrocarbyloxy halide. In examples, ethylene and/or propylene are copolymerized with cyclo-octadiene-1,5 in the presence of n- C 4 -H 9 Li, AlBr 3  or AlCl 3 , WCl 6  and VOCL 3 .
Patent GB-1309721-A (GB)
Title: Fan
IPC: F02C7/04
Filed: 1971-01-08
Abstract: 1309721 Fans; gas turbine ducted fan engines DEFENCE SECRETARY OF STATE FOR 16 Dec 1971 [8 Jan 1971] 975/71 Headings F1C and F1J The invention relates to a two-stage fan and to means for driving the fan comprising an epicyclic gearing. The invention is shown applied to the twostage fan 22, 20 of a gas turbine ducted fan engine which comprises a gas turbine type gas generator of the two-shaft type gases from which drive the fan turbine (17) which in turn drives the fan through shaft 18. The first-stage fan 22 is of relatively small diameter compared with the second-stage fan 20 and the shroud 21 for the firststage fan is carried by the second-stage fan. The first-stage fan comprises a shaft 23 which is supported in bearings 24, 25 and carries a sun gear 31. The second-stage fan comprises a shaft 26 which is supported in bearings 24, 27, 29 and 30 and carries an annulus gear 32. The drive shaft 18 is formed with a planet carrier 34 which carries planet pinions 33 which engage with the sun gear 31 and the annulus gear 32 whereby the fan stages 22 and 20 are driven at different speeds.
Patent GB-1315213-A (GB)
Title: Electroless nickel plating solutions
IPC: C23C18/34
Filed: 1970-07-31
Abstract: 1315213 Electroless Ni plating SHIPLEY Co INC 31 July 1970 Divided out of 1315212 42523/72 Heading C7F An aqueous electroless Ni plating solution comprises a source of Ni ions, a reducing agent therefor, a complexing agent therefor, a pH adjuster, and, as stabilizer, a source of iodate ions. The reducing agent may be a hypophosphite or an aminoborane, the iodate ions, in amounts up to 100 ppm., may be from Na or K iodate, and cloth or phenolic resin may be plated after initial sensitization, e.g. with SnCl 2 /PdCl 2 .
Patent GB-1317182-A (GB)
Title: Vehicle wheel suspension system
IPC: B60G21/055
Filed: 1969-04-29
Abstract: 1317182 Beam axle suspensions C J LAWRENCE 29 July 1970 [29 April 1969] 21807/69 Heading B7D Suspension means for the front or rear wheels of a motor vehicle comprise a transverse beam 2, adjustable spring means 7 interposed between the vehicle body and the central portion of the beam 2 so as to be substantially undeflected when the ends of the axle are deflected in opposite directions, and a torsion tube or bar spring 4 arranged to be deflected only when the ends of the axle are unequally deflected, whereby variations in adjustment or loading of the spring means 7 will have little effect on the roll resistance of the suspension. The beam 2 is located at each end by forwardly-extending radius arms 3, and may be laterally located by a Watt linkage. The spring means 8 may be a leaf spring, torsion bar or a pair of coaxially arranged coil springs. An electrically operated screw-jack 8 is interposed between the body and the spring means 7 for adjusting the body height. Dampers 6 are connected to the ends of the beam 2.
Patent GB-1319588-A (GB)
Title: Mechanical belting
IPC: B65G15/36
Filed: 1969-10-25
Abstract: 1319588 Mechanical belting DUNLOP HOLDINGS Ltd 11th Oct 1970 [25 Oct 1969] 52385/69 Heading B5N Mechanical belting, e.g. conveyer belting, comprises a flexible polymeric composition, e.g. of natural or synthetic rubber or plasticized polyvinyl chloride, having embedded therein a reinforcement structure at least part of which comprises fine steel wires each wire having a diameter of 0À003 inch or less and being of flexibility such that it can be woven or otherwise handled on a substantially conventional textile loom. The fine steel wires may be in the form of a fabric woven wholly therefrom or of a fabric having a warp of fine steel wire and a weft of textile fibres, e.g. cotton. Alternatively the reinforcement may comprise unwoven fine steel wires or multifilament yarns made therefrom extending in the longitudinal direction of the belting. The reinforcement structure may also include at least one layer of fabric formed from textile fibres. Bond promoting agents, e.g. cobalt napththenate may be applied to the fine steel wires to improve their bonding to the polymeric composition. Woven fabric comprising fine steel wires may be coated with natural rubber, cut into suitable lengths, interleaved with layers of natural rubber to form a three ply mechanical belting having upper and lower surfaces of rubber, cured in a press and trimmed.
Patent GB-1330161-A (GB)
Title: Mechanically operated electric switch
IPC: H01H19/62
Filed: 1971-04-19
Abstract: 1330161 Mechanical interrupters JOSEPH LUCAS (INDUSTRIES) Ltd 19 April 1971 [17 March 1970] 12855/70 Heading H1N A switch suitable for use as a trigger in an electronic fuel injection system, for example, comprises a rotatable cam 6 and a cam follower in the form of a pivoted lever 7 having an elongated hole 10 cooperating with the cam 6 so that on rotation of the cam 6 the lever 7 swings back and forth about its pivot 8 and a contact 11 on the lever co-operates with another contact 13. As shown the cam 6 is circular but eccentric with respect to drive-shaft 4. Two fixed contacts 13 are provided on blade springs 14 secured to an insulating plate 15 which is adjustable about pivot 8 and can be locked by screws 16 to a base-plate 9, which also carries the pivot 8. The base-plate 9 is secured by screws 26 in a non- magnetic housing 5 shaped to fit a known ignition distributer body. A rotor arm (17, Fig. 2, not shown) of the ignition system may be keyed to an extension (18) of cam 6.
Patent GB-1340878-A (GB)
Title: Spool-gripper axminster carpet looms
IPC: D03D39/02
Filed: 1971-10-29
Abstract: 1340878 Axminster looms JOHN CROSSLEY & SONS Ltd 29 Oct 1971 [1 Aug 1970] 37260/70 Heading D1E A spool/gripper Axminster loom has grippers 45 which remain between the warp threads 67, 68 and the reed dents 66 at all times and are so shaped that they can carry out any part of their movement without intersecting the path of movement of the weft insertion needle 95 so that tuft and weft insertion can take place simultaneously and the speed of the loom be increased. Details of gripper construction are given and gripper stroke is controlled to determine tuft length.
Patent GB-1341234-A (GB)
Title: Shelfish dredge
IPC: A01K80/00
Filed: 1971-03-18
Abstract: 1341234 Shellfish dredge J KING 14 March 1972 [18 March 1971] 7253/71 Heading A1A A shellfish dredge comprises a frame adapted to be connected to a towing warp at the eye 1 and carrying teeth 13 for disturbing the sea bed. The teeth 13 are carried by a transverse beam 12 hinged to the frame which is urged into its normal position by compression springs 20; thus the teeth can yield resiliently upon encountering obstructions. The lower edge of an open collecting net is attached to the rod 22 received in the rings 21. The upper edge is attached to two ropes each threaded through rings 23, 24 and 25.
Patent GB-1347247-A (GB)
Title: Ventilators
IPC: B60H1/26
Filed: 1970-05-30
Abstract: 1347247 Closable roof apertures; deck lights NOIRIT Ltd 20 May 1971 [30 May 1970] 26190/70 Headings B7B and B7S A ventilator for a caravan roof or deck of a ship comprises a frame 11 secured to the deck or roof 12 and provided with a projection 26 with a pair of bores 27 at right-angles to the deck plane. The bores 27 slidably receive elongate members 17 extending into blind bores 16 in a closure member 10. When a handle 18 having thickened limb portions 19 and trunnions 21 engaging bores 22 is turned into the position shown the members 17 are forced apart and locked with respect to the frame 11. The limb portions 19 are received in inwardly facing channels in the elongate member 17 in the unlocked position. Thus, the closure 10 can be locked either fully open or partially open position. The handle 18 and members 19 are formed of resiliently deformable synthetic plastics material.