baber/WOPTO huggingface dataset:
Patent GB-1238534-A (GB)
IPC: B60J7/12
Filed: 1968-09-26
Abstract: 1,238,534. Vehicle hoods. I.S.A.M.-INSTITUTO SPERIMENTALE AUTO E MOTORI S.p.A. 26 Sept., 1968 [14 Oct., 1967], No. 45690/68. Heading B7B. [Also in Division F2] The flexible hood of a motor vehicle is operated by two lazy-tongs linkages interconnected by support members 44, 43 &c. the linkages being extended and retracted by blocks 17, 18, 19 and 20 engaging oppositely threaded parts of a transverse shaft 9 driven by a reversible motor 1. The linkages are flexible to allow them to take up a curved profile.
Patent GB-1250378-A (GB)
IPC: H01J37/30
Filed: 1969-08-25
Abstract: 1,250,378. Electron beam irradiation apparatus. GENERAL ELECTRIC CO. Ltd., and ASSOCIATED ELECTRICAL INDUSTRIES Ltd. 24 Aug., 1970 [25 Aug., 1969], No. 42145/69. Heading H1D. [Also in Division C7] Apparatus for the heat treatment of strip material comprises an evacuable enclosure, means for moving the strip through the enclosure, and a cold-cathode glow-discharge electron gun adapted to produce an electron beam of substantially the width of the strip to heat it. Fig. 1 illustrates apparatus for annealing steel strip which passes through rollers 7 into the enclosure where it is irradiated on both sides by rectangular beams of electrons from sources 17, and then passes through rollers 9 into a water bath 4 which quenches it. The treatment chamber is sealed at the top end by the rollers 7 and at the lower end by the water bath; baffles 8 prevent water vapour passing into the discharge space and may be provided with cooling means (not shown). The ports 13-16 are connected to vacuum pumps and inlet ports (not shown) admit nitrogen or possibly argon or a nitrogen/hydrogen mixture to a pressure of 50 millitorr. With the arrangement shown the limb 4 must be tall enough to contain a head of water equivalent to atmospheric pressure. In a modification, Fig. 2 (not shown), the limb 4 is coupled to an intermediate chamber containing gas at an intermediate pressure so that the head is spread over two limbs and the height of the apparatus is reduced. Electron guns, Fig. 3.-A cylindrical cathode 31 is water-cooled via ducts 33 and is disposed adjacent a disc-shaped anode 44 which is provided with a rectangular slot 45 of a length slightly less than the diameter of the cathode so as to prevent long-path breakdown down the side of the cathode. A short tubular member 46 is secured to the anode 44 and surrounds the cathode. At the operating pressure the value of the product of gas pressure and electrode spacing is less than the value required for minimum breakdown voltage. This arrangement produces a parallel beam, and in a modification, Fig. 4 (not shown), the cathode may be concave to bring the beam to a line focus; the beam path is surrounded by shield plates which converge at the line focus where they may define a narrow aperture, which restricts gas flow, or may define a large opening in which case their main purpose is to provide surfaces on which vapours may condense. The work is situated beyond the focus so that it is irradiated over an extended area.
Patent GB-1250787-A (GB)
IPC: H03K3/57
Filed: 1968-11-04
Abstract: 1,250,787. Thyristor control circuits. WESTINGHOUSE ELECTRIC CORP. 4 Nov., 1968 [30 Nov., 1967], No. 52068/68. Heading H3T. A semi-conductor switch such as a silicon controlled rectifier 10 is fired by a potential developed across a component such as a resistor R 1  in response to any one of a variety of inputs, at least one of which at 26 may be positive or negative going, a capacitor and transistor C 1 Q 1  or C 2 Q 2  being respectively responsive to each polarity. Transistor Q 3  conducts to produce the firing potential across R 1  when the transistor Q 1  conducts due to a positive pulse at terminal 26, or when Q 2  and a complementary transistor, Q 4  conduct due to a negative pulse at 26. The pulses are produced by closing and opening respectively of a switch 28. Alternatively, the potential across R 1  is produced by conduction of one or other of transistors Q 5 , Q 6 , the first Q 5  in response to a timer signal from 35, and the second Q 6  in response to conduction of further transistors Q 7 , Q 8  which are normally non-conductive but become conductive when the supply voltage at terminal 15 falls sufficiently low. D 1  and D 2  are temperature compensation diodes. The S.C.R. drives a load C L R L .
Patent GB-1252969-A (GB)
IPC: H01P5/18
Filed: 1969-06-13
Abstract: 1,252,969. Waveguide couplers. MARCONI CO. Ltd. 16 April, 1970 [13 June, 1969], No. 30037/69. Heading H1W. A waveguide coupler in which two rectangular waveguides have a common narrow wall and which is capable of supporting the TE 10  and TE 20  wave modes of two separate frequencies comprises a coupling gap in which there are at least three reactive elements resonant at or near one of the two frequencies, the elements being aligned along the coupler axis. The reactive elements are preferably closed rings 8 separated by a quarter wavelength. As shown, the coupler is used as a diplexer in which the two waves enter the respective input ports 3 and 4. Wave energy of the non-resonant frequency passes from the input of one waveguide to the output of the other while the resonant input frequency in the second waveguide passes undisturbed through the waveguide. The reactive elements are provided in two groups of three rings separated by the plate 10 which is the 3 dB point. The phase velocity of the TE 10  wave mode in the double width coupling section of the waveguide is less than that of the TE 20  mode and for the non-resonant frequency it is reduced by the reactive elements such that at the output the modes combine to give both frequency outputs at one port with none in the second. The input and output ports are provided with stepped portions (Fig. 3, not shown) to suppress the TE 30  mode. The horizontal limbs of the closed rings 8 may be locally thickened to reduce the possibility of voltage breakdown.
Patent GB-1256986-A (GB)
IPC: A01D34/54
Filed: 1970-09-23
Abstract: 1,256,986. Lawn mowers. PHILIPS' GLOEILAMPENFABRIKEN N.V. 23 Sept., 1970 [26 Sept., 1969], No. 45338/70. Heading A1F. A lawn-mower is so constructed that the pressure of engagement between the cutting parts increases as the resistance to cutting increases. The cutting cylinder 9 is mounted on a substantially U-shaped auxiliary frame 5 by trunnions 10, the frame 5 being pivot-. able between the side plates of the main frame 1 about a pivot 4. These side plates are spaced by rods 2, 3, the rod 2 also serving as a guard against coarse matter. The rearward ends of the auxiliary frame 5 are provided with projections 6 which rest on springs 8 contained in slots 7 in which the projections 6 engage. Helical blades 12 are mounted on the cutting cylinder 9 and cooperate with a ledger blade 13, rigidly secured to the main frame 1, having a cutting edge 14 provided with a guide member 15 to maintain uninterrupted contact between the cutting parts. When cutting grass, the resistance to cutting will exert a tangential force relative to the path of the blades, and this force creates a couple which produces a torque resulting in the auxiliary frame 5 tending to pivot about 4 in a clockwise direction. Thus an increased pressure of engagement between the cutting parts is effected. The drive for the cutting cylinder 9 should not restrict the pivotability of the auxiliary frame 5, and in this embodiment the motor is located within the cutting cylinder 9. An electric motor 16 drives a shaft 20 carrying a pinion 22 which rotates the cutting cylinder 9 by means of a gear wheel 23 meshing with a toothed rim 26 on the inner wall of the cutting cylinder.
Patent GB-1258976-A (GB)
IPC: H01M12/06
Filed: 1969-06-30
Abstract: 1,258,976. Battery. YARDNEY INTERNATIONAL CORP. 30 June, 1969 [1 July, 1968], No. 32933/69. Heading H1B. A battery comprises a plurality of cells of the gas depolarized type, e.g. air/Zn, each including an envelope electrode 13 of gas permeable sheet material which has a catalytically effective inner surface, the envelope containing a liquid electrolyte 21 and a counter electrode 12, e.g. zinc, and spacer means comprising a solid partition of dielectric material between the outer surfaces of the envelopes of each pair of adjoining cells forming gas channels alongside the outer surfaces of the envelope electrodes of the adjoining cells. The spacer means can be a partition 19 of dielectric material which divides the gas channel and is bracketed between top and bottom rigid frame members 18, 18<SP>11</SP> of adjoining cells which have projecting shoulders bearing on the partitions for forming peripheral gaps. As shown, the partitions can have integral projections 22 on opposite surfaces. Alternatively the opposed outer surfaces of the envelope electrodes of adjoining cells may have projections. The envelope electrode is preferably composed of a hydrophobic resin and a catalyst, e.g. carbon or metal-plated carbon powder. The weight ratio of catalyst to resin is such that the outer surface of the envelope is hydrophobic and the inner surface is hydrophilic.
Patent GB-1288387-A (GB)
IPC: A22C7/00
Filed: 1970-02-06
Abstract: 1288387 Pressed meat container SCOT MEAT PRODUCTS Ltd 6 Feb 1970 52672/ 71 Divided out of 1288386 Heading A2U The subject-matter of this Specification is the same as that described in Specification 1288386 but the claims are concerned with a container assembly in which pressed meat is cooked.
Patent GB-1297425-A (GB)
IPC: B01D29/35
Filed: 1970-05-19
Abstract: 1297425 Pulp screening machine BIRD MACHINE CO 19 May 1970 [2 June 1969] 24142/70 Heading BID An otherwise conventional paper pulpscreening machine has a screen comprising groups of slots, and the slots near the inlet 16 extend at an angle to those near the rejects outlet 30, so that despite the variation in direction of flow of suspension across the screen from inlet to outlet the suspension crosses all the slots in a direction approximately transverse to their length. The screen is cylindrical and suspension from inlet 16 passes over baffle 20 into an annular space between the screen and rotary drum 36 whose surface irregularities clean the screen. Fig. 1 shows only two groups of slots, but there may be intermediate groups, oriented at intermediate angles.
Patent GB-1301384-A (GB)
IPC: G03G15/10
Filed: 1970-02-06
Abstract: 1301384 Electro-photographic developing apparatus VARIAN ASSOCIATES 6 Feb 1970 [11 Feb 1969] 5844/70 Heading G2H Toner in a liquid carrier is fed to an imagebearing member by means of a fine mesh screen. It is stated that this avoids excess wetting of the member. In the Fig. 1 embodiment, a copy sheet (not shown) is placed face down on a screen 1 maintained at a suitable potential. Developer is pumped from a reservoir 4 to an apertured tube 10 and flows down the mesh to contact the image. In Fig. 5, a cylindrical mesh 20 rotates in a reservoir 4 to pick up developer and apply it to copy sheets 50 fed by a belt 37, driven rollers 33, 34 and idlers 45. Cylinder 20 may be rotated in either direction. Additional developer may be supplied by a tube (such as 10) located inside cylinder 20. The screen may alternatively be in the form of an endless belt.
Patent GB-1315720-A (GB)
Title: Power sawing
IPC: B23D59/00
Filed: 1970-11-27
Abstract: 1315720 Machinery guards CAPE UNIVERSAL BUILDING PRODUCTS Ltd 12 Jan 1972 [27 Nov 1970] 56586/70 Heading F2J [Also in Division F4] A shroud for use with a power driven saw 5 for confining and removing sawdust or other material generated during operation of the saw, includes tubular ducts 7 and 8 formed on opposite sides and at opposite ends of a semicircular chamber 1, the ducts being adapted for connection to a source of suction and a filter bag via a pair of branch pipes 9 and connectors 10. The foot of the shroud is formed with a flexible mouth, 11 arranged to bear against the material to be sawn, e.g. a composition asbestos board 12, in sealing realationship. The mouth is integrally connected to the bottom of the chamber 1 by a flexible bellows portion 13. Preferably the shroud is moulded in one piece from a flexible synthetic plastics material which may be transparent or be opaque with a transparent window. A lamp arranged to shine on the line of out can be provided inside the shroud.
Patent GB-1316959-A (GB)
Title: Slab rolling
IPC: B21B31/32
Filed: 1969-09-26
Abstract: 1316959 Rolling mills DAVY & UNITED ENG CO Ltd 18 Sept 1970 [26 Sept 1969] 47611/69 Heading B3M The roll gap between a pair of vertical rolls 12, 13 is varied according to a predetermined pattern during the rolling of a slab 25 such that when the slab is subsequently rolled in a horizontal roll stand its width will be constant throughout its length. The normal taper which is produced at the leading and trailing ends of the slab during edging is eliminated by moving the rolls 12, 13 together slightly the two ends are rolled. The rolls 12, 13 are normally set by screws 16, 17 (Fig. 1) and are balanced by springs 23. Hydraulic capsules 21, 22 are connected to a control cylinder 27 to allow adjustment of the rolls whilst rolling the slab. As the leading end of the slab passes the rolls, the roll gap is slightly wider than normal but as the first few inches of the slab are rolled, the rolls are moved together to their normal position. They are moved by operation of a motor driven piston 28 which forces hydraulic fluid into the capsules 21, 22. The speed of the motor is controlled according to the slab rolling speed, and stops 34, 35 determine the stroke of the piston. The speed may be constant or may depend on the position of a transducer 37 which is related to the gap between the rolls. The motor may alternatively be controlled by a closed loop system incorporating a transducer 37 and a scanning photo-cell for locating the position of the slab. The rolls can be controlled in a similar manner as the end of the slab is rolled. One capsule instead of two may be employed. In an alternative embodiment, Fig. 2, the roll positions are controlled by valves 46, 47  which supply fluid to the roll carriers 14, 15. The valves are operated in response to output signals from amplifiers 51, 52. The output signals are derived from inputs relating to the positions of the rolls, the nominal spacing of the rolls, and the required speed of change of the roll gap. The latter signal is provided by a generator 56 providing a ramp voltage, the signal being initiated by a device 57 responsive to a closed loop system can be used, with the signal on line 60 being derived from a slab position transducer.
Patent GB-1318467-A (GB)
Title: Methods of preparation of a material containing vanadium  carbonitride and or vanadium nitride
IPC: C01B21/082
Filed: 1970-09-08
Abstract: 1318467 Vanadium nitride, carbonitride and carbide HOLLANDSE METALLURGISCHE INDUSTRIE BILLITON NV 8 Sept 1970 42959/70 Heading C1A. Materials containing vanadium carbonitride or vanadium nitride or mixtures thereof with each other and/or vanadium carbide are produced by heating an oxidic vanadium-containing material with a gaseous hydrocarbon and with nitrogen and/or ammonia at a temperature between 800‹ and 1250‹ C., the treatment with nitrogen and/or ammonia being carried out after the treatment with the hydrocarbon, or partly or wholly simultaneously therewith. The term oxidic vanadium-containing material includes vanadium oxides V 2 O 5 , V 2 O 3  and other compounds having vanadium-oxygen bonds which can be reduced to vanadium carbide by hydrocarbons such as VOCl 2 . If desired a compound which is unstable at the reaction temperature such as ammonium metavanadate may be used. The final product may consist of vanadium carbonitride, a mixture of vanadium carbonitride and carbide and/or nitride, or vanadium nitride. The hydrocarbons are preferably those having 1-3 carbon atoms, particularly methane. Natural gas may be used as the source of hydrocarbon. The gas mixture may contain up to 20% by volume of CO. The process may be carried out in a continuous flow manner, preferably in a moving bed or a fluidized bed.
Patent GB-1323052-A (GB)
Title: Packaging
IPC: B65D73/00
Filed: 1969-07-08
Abstract: 1323052 Packaging articles on cards HOLLINGSWORTH MARSHALL Ltd 8 Oct 1970 [8 July 1969 15 July 1969] 34470/69 and 35652/69 Heading B8C A package comprises a card mount 6 having an aperture 7 and a moulded receptacle 1 of transparent or translucent plastics material provided with a cavity 4 in which an article 5 is held as a frictional fit. The receptacle 1 may either be held as a frictional fit within the aperture 7 or it may be secured to the card mount by stapling or gluing flanges 8 provided around the base of the receptacle.
Patent GB-1328993-A (GB)
Title: Air intakes for gas turbine engines
IPC: F02C7/05
Filed: 1971-04-23
Abstract: 1328993 Gas turbine engines - air intakes DEFENCE SECRETARY OF STATE FOR 23 April 1971 [5 Feb 1970] 5476/70 Heading F1G An air intake for a gas turbine engine comprises an outer casing 14, 15 having a leading edge 16, and a centre body 12 having an upstream end portion which is enlarged, an annular passage 18 being defined between the the centre body and the outer casing into which air flows as indicated by arrows 19. The centre body is of mushroom shape and is supported from the outer casing by struts 17. The outer periphery 22 of the centre body is forward of the leading edge 16 of the outer casing and every point of the periphery lies at a greater distance from the axis 23 than a corresponding point in the same axial plane on the leading edge of the outer casing. The object of the invention is to prevent snow and slush being drawn into the intake passage 18. Means 26 are provided for heating the forward face of the centre body.
Patent GB-1333032-A (GB)
Title: Carton having a hinged end closure
IPC: B65D5/54
Filed: 1972-02-14
Abstract: 1333032 Reclosable carton PNEUMATIC SCALE CORP 14 Feb 1972 6714/72 Heading B8P The flip top of a carton can be secured upon reclosure by tabs 68 or 68a, Fig. 14 (not shown), in the flip top engaging in openings defined by slits 78 or cut-outs 78a (Fig. 14) in the front wall panel 16 of the carton. The tabs 68 are defined by cut-outs 72, 74 which are also shaped to prevent stress at the corners of the flip top. The flip top is formed from integral panel sections 52, 54, 56 connected to front and end wall panels 12, 14, 16 along a frangible score line 58 and a flap 48 hinged to the rear wall panel 18 of the carton. To erect the blank, Fig. 1, the integral panel sections 52, 54, 56 are folded along score lines 58 and 82 to form a two-ply band 118 about the upper portions of the front and end wall panels, the contacting faces of the plies being secured together by adhesive patches 110, 112, and 114. The blank is then folded and secured in tubular form and the bottom closure and the flip top are completed. To complete the flip top, short flaps 90, 92, 94 extending upwardly from the outer ply of the. band are folded inwardly and the flap 48 folded over and secured to the short flaps 90, 92, 94.
Patent GB-1341168-A (GB)
Title: Thermopiles
IPC: H01L35/34
Filed: 1972-02-17
Abstract: 1341168 Thermoelectric devices NAUCHNOPROIZVODSTVENNOE OBIEDINENIE "TERMOPRIBOR" 17 Feb 1972 7310/72 Heading H1K As shown, Fig. 2, a thermopile is produced by joining the edges of two foils of dissimilar materials, e.g. chromel and copel by butt or scarf seam welding and forming a plurality of apertures 4 across the junction line thus defining individual thermoelements 5 therebetween. Two such foils are superimposed with their materials reversed and with the thermoelements of one foil aligned with the apertures in the other foil. The foils are joined along lines I close to the ends of the apertures 4. A suitable length of the composite foil is cut off, end elements of opposite type are provided with terminals and the assembly is glued to a frame having an insulating surface. The foil is then cut along lines II to convert the arrangement into a series connection of thermocouples with their hot junctions disposed over an aperture in the frame, e.g. for use as a radiation pyrometer. In a modification, Figs. 3 and 4 (not shown), the apertures are generally rectangular and transform into narrow slots at diametrically opposed corners. The two foils are assembled as before but with the slots aligned so that after joining close to the ends of the rectangular portions of the apertures the foils may be converted into a series connected assembly merely by cutting off the edges of the foil. All the hot junctions may be in a single line as shown or may be arranged in two parallel lines by forming the apertures asymmetrically relative to the join between the foils or in two intersecting lines by suitably arranging the positions of the apertures relative to the join.
Patent GB-1347244-A (GB)
Title: Hollow articles and methods of making such articles
IPC: B65D3/22
Filed: 1971-04-19
Abstract: 1347244 Making boxes MASSON SCOTT THRISSELL ENG Ltd 19 April 1971 [3 April 1970] 15881/70 Heading B5D [Also in Divisions B8 and F2] A preformed hollow article has laminated walls comprised of inner and outer layers 10, 11 and at least one intermediate layer 12 formed of a single sheet which is corrugated to provide cavities. The layers may be of paper and the cavities may be filled with foam material, e.g. polyurethane foam. The layers are formed by winding strip material helically on a mandrel, the joints between edges of the strips of adjacent layers being staggered. The intermediate layer may be corrugated such that the corrugations in the article are helical or axial. In one embodiment (Fig. 6, not shown) a web (22) is fed around roll (27) and has adhesive (or foam) applied by applicator (28). A further strip (23) is corrugated by fluted rolls (25, 26) and is brought into contact with the adhesive side of web (22). The combined web (22, 23) is fed on to a rotating mandrel (18) and a further web (17) with adhesive applied by applicator (30) is fed around the mandrel on the outside of the corrugated web (23). The tube can be cylindrical or frusto-conical and may be of a variety of cross-sections (Figs. 8, 9a, 9b, 9c, not shown). The formed tube may have an end plate applied to form a container (Figs. 10b, 11, 13, not shown) or used to form a carton by partial slitting at the corners when of rectangular crosssection (Fig. 14, not shown) or can be used for partitioning a box (Fig. 12, not shown).
Patent GB-1355643-A (GB)
Title: Apparatus for casting hollow metal parts
IPC: B22D11/00
Filed: 1970-02-26
Abstract: 1355643 Continuous casting; casting ingots FORMALLOY Ltd 18 May 1971 [26 Feb 1970] 9219/70 Heading B3F Apparatus for casting a tubular (aluminium) metal part 13 comprises a tubular (watercooled) die 11, the metal being poured at one end and the casting being extracted through the other, a core 40 extending centrally through a wall 22 for closing the die, means for moving the die and wall simultaneously and means for withdrawing the core in the same direction. The casting 13 is ejected through a hole in a tubular frame 10 by an ejector 15. A member 21 formed with the wall 22 is mounted on tubes 23, 24 movable vertically by a pneumatic and hydraulic device 27, 28. Thermal expansion of apparatus parts during casting is compensated by springs 47 engaging a sleeve 46. The slightly-tapered core is withdrawn by a short-stroke high-pressure device 60 and subsequently by a pneumatic actuator 70. During casting, cooling air passes up through a bore 51 to issue from an orifice 75 in the core above the casting. Downward movement of the member 21 through the die as the molten metal is poured in is controlled by a hydraulic valve (b) associated with the device 28. A cam (g) on the device 28 then activates a valve (h) operating a pilot valve (i) through a time delay (p) to allow solidification of the casting. The pilot valve initiates the completion of the operation. In a modification, the die is moved during casting and the casting is released by moving the die.