baber/WOPTO huggingface dataset:
Patent GB-1439245-A (GB)
Title: Reversible power shift transmissions hydrometallurgical leaching
IPC: F16H63/02
Filed: 1973-10-22
Abstract: 1439245 Change-speed control INTERNATIONAL HARVESTER CO 22 Oct 1973 [20 Oct 1972] 49039/73 Heading F2D Fluid pressure engaged forward-reverse FWD, REV, and ratio clutches 1, 2, 3, of a torqueconverter-driven transmission on a motorvehicle are controlled by a manual selector valve V, and have their rate of pressure rise during shift controlled by a common accumulator 44, charged with feed-back pressure from the selected clutches, which pressure acts also on a pressure-regulating valve 32 to increase communication between a pressure source CP and the selector-valve feed line 34, the rate of feed-back from the clutches of all but third ratio being controlled by one-way restrictors 40, 43 of differing capacities, those of the direction clutches and first ratio producing the greatest flow restriction, the second ratio next, whilst the third ratio has no restrictor. The proportions of the clutch servo cylinders, the accumulator and the restrictors are such that, during a shift, engagement of the ratio clutch always precedes that of the direction clutch. Shift sequence, involving if desired also change of direction, e.g. from first reverse to second forward, is as follows. Movement of the shift lever 28, first to neutral, exhausts the superseded clutches, permitting the accumulator 44, under spring load, to discharge rapidly to those clutches through their feed-backlines and one-way by-passes of their respective restrictors 40 ... 43. When the shift lever 28 reaches the selected setting, line pressure CP passes to the selected clutches through the regulator valve 32, at this time loaded only by a spring, which determines a low initial setting (30 p.s.i.). Feedback from the engaging clutches now passes through the respective restrictors 40 ... 43 to the accumulator 44 and also at 36 to load the regulator valve 32, producing an increase in engaging pressure, which at the end of the charge stroke of the accumulator reaches a maximum (250 p.s.i.). Shuttle valves 1-3, 2-3 and F-R isolate the unused lines, but, in a combined direction and ratio shift, both feed-back pressures act together at the accumulator supply junction 38. In Figs. 3-5, not shown, the valve-group within the chain line 24, Fig. 2, are shown mounted in a single block, the shuttle valves being of the spool type and the one-way restrictors being spring-loaded valve cones having restrictors through their axial centres.
Patent GB-1472552-A (GB)
Title: Mine roof supports
IPC: E21D23/08
Filed: 1974-11-15
Abstract: 1472552 Self advancing roof support GULLICK DOBSON Ltd 22 Aug 1975 [15 Nov 1974] 49427/74 Heading E1P A self advancing roof support has a pair of ground engaging skids 13, 14, the advancing means comprising a pair of fluid-pressure operated rams 11, 12 each disposed inside or adjacent to a different one of the two skids 13, 14 and each coupled to one end of a bar structure slidable within the space between the skids to extend forwardly therefrom on contracting of the rams. In one embodiment, Fig. 4, the bar structure is a single centrally disposed bar 17 with guide members 21 at one end to centralise it. In another embodiment, Fig. 6, the bar structure comprises a pair of spaced limbs 27 joined at one end 26 to form a U-shape and is pivotally attached at its other ends to the rams 11, 12. The bar structure is made of spring material and is adjustably attached to a conveyor 10 by a clevis 9.
Patent GB-1431265-A (GB)
Title: Incombustible dust spreaders in mines
IPC: E21F5/10
Filed: 1972-10-27
Abstract: 1431265 Spreading incombustible dust in mines SCHWARZ HOLYWELL LTD 10 Jan 1974 [27 Oct 1972] 49556/72 Heading AID Apparatus which blows incombustible dust over the floor of a mine comprises an air compressor 9 which is driven by the rotation of the wheels or axle of a towable bogie 1 via the intermediary of clutches and chains or gears. The wheels or axle have appropriate toothed sprockets 3. The air intake to the compressor is filtered by a filter 12 and is conveyed from the compressor along a duct 13 which communicates with dust hopper 16 whereby the dust is drawn from the hopper and discharged via a pivotal diffuser head 19. A manually operated clutch is provided to enable the bogie to be towed without the compressor being operated and a uni-directional clutch 10 prevents reverse drive of the compressor when the bogie is towed backwards. Pressure relief valve 14 and non-return valve 15 are included.
Patent GB-1485475-A (GB)
Title: Regulating apparatus for selecting and controlling the flow rate of a liquid
IPC: A61M5/168
Filed: 1974-11-15
Abstract: 1485475 Automatic control of liquid drops CRINOSPITAL SpA 15 Nov 1974 [21 Nov 1973] 49617/74 Heading G3N A system to regulate the flow of a liquid in terms of drops per unit time comprises a control circuit 6 which energizes a valve actuator 7 upon receipt of a pulse from a pulse generator 1 on which the desired drop rate is set, by selection from a frequency divider supplied from an oscillator, the resulting drop released from a vessel S being detected, photo-electrically, at 9 and signalled back to 6; an alarm 13 is given if each pulse is not  followed by a single drop or if drops occur in the absence of pulses. The alarm is given if the drop does not follow in a prescribed time or before the next demand pulse. Each drop is counted at 25 and when the total reaches a number set in register 26 the demand pulses are blocked at 3. Details of the units, which comprise logic circuits and an infrared radiation drop detector, are given, Figs. 2- 5 (not shown).
Patent GB-1076388-A (GB)
Title: Adjustable cutting tool
IPC: B23B29/034
Filed: 1965-11-23
Abstract: 1,076,388. Cutting tool; thread rolling. DE VLIEG MACHINE CO. Nov. 23, 1965 [Dee. 29, 1964], No. 49779/65. Headings B3C and B3M. [Also in Division F2] An adjustable cutting tool comprises a tool holder body 10 having a bore 12 for receiving a cutter element 24 which is threaded 26 externally along its complete length and is prevented from rotating in the bore 12 by a keyway 22 and a key member 40 which may be bonded in a recess in the cutter element 24. Adjustment is effected by slackening a locking screw 32 and adjusting a collar 44 against a graduated scale 52. The collar 44 is not restrained in a transverse direction to the bore axis and during re-locking by the screw 32 the flanks of the thread 26 bear on the internal thread 46 of the collar to position it and clamp a seat area 48 to a locating surface on the holder body 10. The threads 26, 46 are rolled on by a die (64) (Fig. 3, not shown) to give an included angle of between 35 and 55 degrees to the thread form and a minimum angle of 17 degrees of the rear flank (54) of the thread form to a plane perpendicular to the thread axis. The rolled thread is ground down at the crests (72) to form a cylindrical surface for accurate locating of the cutter element in the bore 12. The keyway side walls are at an inclined angle of between 50 and 80 degrees, the embodiment in Fig. 4 (not shown) being 60 degrees. The cutter element may have a tungsten carbide tip brazed thereon or the tip may be machined directly on it.
Patent GB-1349859-A (GB)
Title: Apparatus and method for doffing sound packages and donning  empty cores
IPC: B65H54/54
Filed: 1971-10-26
Abstract: 1349859 Doffing and donning; cradles JONATHAN LOGAN INC 26 Oct 1971 [3 June 1971] 49789/71 Addition to 1349806 Heading D1J In a doffing and donning apparatus and process as claimed in the parent specification, means are provided for slowing the swinging motion of the bobbin-holding arms 101a, 101b during the period in which a new empty bobbin is to be picked up thereby. During a doffing sequence a cam 181 (Fig. 13 not shown) producing the oscillation of the arm-supporting shaft 102 slows the oscillation whilst the arms are brought together to grip the new bobbin. A plurality of winding units are served by the oscillating shaft 102, and are scanned electrically to sense the units at which doffing is necessary. At the end of winding the bobbin is braked by means of a cam-operated lever 118 (Fig. 7) engaging a pin 117 on a core-holding centering element 109b (Figs. 5, 7). Transfer tails may be wound before and after the main winding using a guide 193 (Fig. 1) on a cam-operated axially movable rod 192.
Patent GB-1434850-A (GB)
Title: Composition emitting infrared radiation
IPC: C06C15/00
Filed: 1973-10-25
Abstract: 1434850 Ammonia; composition emitting infra-red radiation SOC EUROPEENNE DE PROPULSION 25 Oct 1973 [27 Oct 1972] 49805/73 Heading C1A [Also in Division F3] An anhydrous composition comprises: (i) at least two chemical compounds which, in the presence of water, react with one another exothermically, and (ii) at least one chemical compound, distinct from either compound in (i), which releases ammonia on reaction with water, the exothermicity of either or both reactions being sufficient to raise the temperature of the ammonia produced such that it emits infra-red radiation. Component (i) may comprise an anhydride of a mineral acid (e.g. phosphoric acid anhydride, and the anhydrides of arsenic, bismuthic and antimonic acids) and a reactive metal oxide, preferably an alkaline earth metal oxide as, e.g. barium oxide. Desirably the anhydride and the oxide are used in stoichiometric amounts. Component (ii) may be a nitride, urea, or urea derivative, suitably aluminium or magnesium nitride. The composition may be housed in a perforated container of heat-insulating material.
Patent GB-1028385-A (GB)
Title: Apparatus for the positive driving of one element by another element having a displacement greater than that of the driven element
Inventor: LEVENGLE ROLAND
IPC: F16H25/18
Filed: 1964-12-09
Abstract: 1,028,385. Linkwork. ETABLISSEMENTS FRANCOIS MASUREE FRERES. Dec. 9, 1964, No. 50009/64. Heading F2K. A driven member 2, mounted on a fixed slideway 1, carries hook members 3 which are adapted to engage fingers 7b on a reciprocating driving member 7. The hook members 3 are pivotally mounted at 4 in slots 2a in the member 2 and carry rollers 5 which are urged into contact with the slideway 1 by a spring 6 connecting the members 3. On downward movement of the driving member 7, a projection 7a thereon engages the member 2 to move it downwardly until a stop is reached. The rollers 5 ride up a conical surface 1b to cause engagement of the hook members 3 with the fingers 7b. On the return movement of the member 7, the driven member 2 is carried upwardly until the hook members 3 are disengaged from the finger 7b by the spring 6 when the rollers 5 leave the conical surface 1b Pivotally mounted latch means 8 are automatically disengaged when the driving member 7 descends.
Patent GB-1436159-A (GB)
Title: High frequency welding of plastics material
IPC: B29C65/00
Filed: 1973-10-29
Abstract: 1436159 Seaming and finishing edges of non-metallic sheet material ZAVODY ELEKTROTEPELNYCH ZARAZENI (ZEZ) NARODNI PODNIK 29 Oct 1973 [1 Nov 1972] 50207/73 Heading B5K High frequency welding apparatus for producing a welded seam including a bead 4<SP>1</SP> comprises a pair of welding electrodes 1, 2 and a frame member 6 juxtaposed to, but electrically insulated from, the electrodes 1, 2, the member 6 having a bead receiving recess 7 bounded on a side thereof by a wall 5 resiliently biased towards the recess 7. As shown, the wall 5 is in the form of a resilient plate having a lip 5<SP>1</SP> causing a small restriction to the opening of the recess 7. The wall 7<SP>1</SP> of the recess opposite to the plate 5 has a downwardly-turned end 7<SP>11</SP> to form a further small restriction. To form a beaded seam, e.g. in a bag, case or motor car seat, a strip 4 having a bead 4<SP>1</SP> is inserted between the margins of plastics sheets 3. The assembly is positioned with the bead 4<SP>1</SP> extending as far as it will go into the recess 7 with 10-25% of the diameter of the bead protruding therefrom and welding is effected. The cross-section of the bead may be circular, as shown, or elliptical.
Patent GB-1210661-A (GB)
Title: Hinges and methods of making and securing same to boxes
Inventor: ROY LEO T
IPC: E05D5/04
Filed: 1967-11-04
Abstract: 1,210,661. Hinges. CRAFT Inc. 4 Nov., 1967, No. 50221/67. Heading E2F. A hinge member suitable for connecting together the lid and body of a cardboard box comprises a pair of hingedly connected elements 38, 40 each formed with a plurality of openings 58 defined by a plurality of curved prongs 56 (Fig. 7). The thickness and/or width of each prong may have a decreasing taper towards the outer end thereof. The prongs may be located in clusters around the openings. The hinge member is formed by indenting therein a plurality of conically shaped depressions, 54, the metal being effectively stretched but not penetrated at each depression (Fig. 5), and then penetrating each depression at the apex thereof to form a plurality of curved prongs which are pressed into the box wall to secure the hinge elements thereto. The hinge construction may be of a conventional type as shown in Fig. 3 and may comprise hinge rolls 42, 44 and hinge pins 46; openings 48, 50 may be secured to a conventional spring member (not shown).
Patent GB-1535514-A (GB)
Title: Apparatus for handling elongate articles
IPC: B66F9/18
Filed: 1975-12-09
Abstract: 1535514 Grippers C R MORSE 9 Dec 1975 [15 Jan 1975] 50454/75 Heading B8H An elongated frame 15 for use in gripping and transporting elongate articles such as pipes has a carriage 31 mounted thereto, the carriage having rollers 32 by means of which the frame 15 is movable transversely of its length along the boom 8 of a lift truck (1), Fig. 1 (not shown), the frame 15 comprising parallel members 16 on each of which a pair of pipe gripping heads 20 is movably mounted by a respective carriage 19 which runs along the associated member 16, each pair of gripping heads 20 on a member 16 being movable towards each other to grip a pipe, such movement of the heads 20 being effected by respective endless chains (23) attached to each carriage (19), Fig. 6 (not shown), and driven by a respective motor 25. The frame 15 can be tilted about an upright axis (45) provided by the carriage 31 by means of a pair of rams (35), the latter also being operative to move the frame 15 and the carriage 31 along the boom 8, Fig. 12 (not shown).
Patent GB-1152239-A (GB)
Title: Surge Protection Circuits
Inventor: REVAL HARDEV
IPC: H02H9/04
Filed: 1965-12-01
Abstract: 1,152,239. Protective arrangements. C.A.V. Ltd. 19 Oct., 1966 [1 Dec., 1965], No. 50920/65. Heading H2H. [Also in in Division G3] A surge protection circuit for a generator having a field regulator comprises a voltage sensitive device which conducts to impose a load on the generator when the output voltage of the generator exceeds a predetermined value, so as to minimize the risk of the output voltage rising to a dangerously high level when a heavy load is removed from the generator. As shown, the generator comprises an alternator 10 having a stator 11, which is connected to output terminals 14, 15 over rectifiers 12, 13, and a self-excited field winding 16 which is associated with a voltage regulator 17; the voltage sensitive device comprises a Zener diode 21 connected as shown to the output terminal 15 and to a further set of rectifiers 18, the latter connection including the winding 19 of a relay having normally open contacts 20. The Zener diode 21 conducts when the output voltage exceeds a predetermined value, the resulting current flow acting to load the generator and lower the output voltage thereof; if this current flow exceeds a value determined by the characteristics of the relay winding 19, the contacts 20 will close to impose an additional load on the generator.
Patent GB-1387258-A (GB)
Title: Mountings incorporating tiltable struts
IPC: F16F1/44
Filed: 1970-10-28
Abstract: 1387258 Washing machines HOOVER LTD 27 Jan 1972 [28 Oct 1970] 51208/70 Heading D1A [Also in Divisions F2 and F4] A mounting, e.g. one of four legs 12 for supporting the container of a clothes drum in a machine for washing, for centrifugal extraction or for both, has a strut 25 passing through a support (such as a bracket 21 inside the machine casing 15) and can tilt about a point 52 against the restraint of a resilient (rubber) block 36 positioned under compression between a face provided by the strut 25 or by a member 45 (a plate engaged by a shoulder 47 on the strut) connected to it and a face secured to or integral with the support 21; a first portion 50 of the block 36 to one side of the strut has a larger area (see Fig. 2) than a second portion 51 at the opposite side so that restraint caused by the first portion 50 to tilting in one direction is greater than that caused by the second portion 51 to tilting in the opposite direction. The arrangement of the legs 12 in a machine is such that two at each side of the clothes drum can tilt fore and aft of the machine to allow tilting of the drum container (which they suuport as struts) but there is increased restraint against rearward tilting such as is caused by overfilling of the drum. As shown, there is a further block of rubber 37 at the opposite face of the support 21 backed by a further plate 45 abutting a nut 49 on the strut 25. The larger end 50A of this block is adjacent the smaller end 51 of the block 36 so that tilting of the rod in one direction compresses both larger ends 50, 51. A stud 38 on each block enters a recess 40 in the other block. The blocks are precompressed on assembly. In another embodiment, Figs. 4, 5 (not shown), the lower block 37 is replaced by an imcompressible hemispherical collar on the strut (as in Specification 1387259) which slides in a complementarily shaped seat formed in the support 21. Each leg 12 is secured between the casing bracket 21 and a bracket 20 on the underside of the clothes drum container. As in Specification 1355177, a hemispherical damping collar 28, providing an abutment for a spring 30 guided by a spacer tube 31, can slide on the strut 25 for damping. The spring is compressed as the drum is loaded.
Patent GB-1439948-A (GB)
Title: Flame resistant moulding compositions based on polymers of  propylene
IPC: C08K5/01
Filed: 1973-11-05
Abstract: 1439948 Flame-resistant polypropylene compositions BASF AG 5 Nov 1973 [6 Nov 1972] 51212/73 Addition to 1270318 Heading C3P Flame resistant moulding compositions comprise (a) 100 parts by weight of polypropylene or a copolymer of at least 50 weight per cent of propylene; (b) 0À5 to 9 parts by weight of an aliphatic bromohydrocarbon containing at least 45 weight per cent of bromine; (c) 0À2 to 7 parts by weight of antimony trioxide; (d) 0À05 to 3 parts by weight of an organic phosphite; (e) 0À2 to 6 parts by weight of a mixture of (e 1 ) 20 to 80 weight per cent of an alkane polyol having 4 to 12 carbon atoms and 4 to 12 hydroxyl groups in the form of a solid aggregate at temperatures up to 100‹ C. and (e 2 ) 80 to 20 weight per cent of a substance of formula where R is C 1-4  alkyl, m and o are 0 or 1 to 5, n is 0 or 1 to 4 and p is 0 to 200; and (f) 0À1 to 3 parts by weight of barium and/or cadmium salts of C 10-20  alkanoic or alkenoic acids. Preferred acids are C 10-14  alkanoic acids and preferred components (f) are mixtures of 20 to 80% barium laurate with 80 to 20% cadmium laurate. Examples describe compositions comprising polypropylene, 1,2,5,6,9,10 - hexabromocyclododecane, antimony trioxide, tris(nonylphenyl)- phosphite, pentaerythritol, dicumyl and barium/  cadmium laurates. The compositions may be made into fibres, sheets, pipes, fittings and building panels.
Patent GB-1515510-A (GB)
Title: Transmission networks for telephone system
IPC: H04M19/00
Filed: 1974-11-27
Abstract: 1515510 Hybrid circuits PLESSEY CO Ltd 13 Oct 1975 [27 Nov 1974] 51306/74 Heading H4R A two-wire to four-wire hybrid coupling circuit comprises an inverting differential amplifier Al and a non-inverting differential amplifier A2 in the return path, and inverting differential amplifiers A3, A4 of selected gain in series in the go path, there being a network R 1 to R4 in the two-wire line with taps X, Y connected by way of capacitors to inputs of A3 and A4, the output of Al being coupled over a capacitor to an input of A4 so that return path signals from X, Y and appearing over R4 and R5 are neutralized by the direct output of Al appearing over R7. The gain of A3 is typically 0À1 while that of A4 over R6 is 10 and over R6 is unity. The two-wire line is fed by the potentials +V and -V applied to Al and A2.
Patent GB-1414510-A (GB)
Title: Stability of damaged ships
IPC: B63B3/14
Filed: 1972-11-08
Abstract: 1414510 Improving stability of damaged ships KAWASAKI JUKOGYO KK 8 Nov 1972 [11 Nov 1971] 51576/72 Headings B7S and B7M A ship having a double-bottom tank D divided by transverse bulkheads has liquidtight trunk compartments PT 1 , PT 2 , PT 3  and PS 1 , PS 2 , PS 3  constructed along the transverse bulkheads B 2 , B 3 , B 4  and the outer hull at their junctions so as to reach at least nearly to the level of the fully loaded water line l-l. The trunk compartments communicate with the double bottom and the ship has wing tanks P 1 - P 4 , S 1 -S 4  in which a plurality of the trunk compartments are independently mounted. Serious damage on the ship's side will flood the double bottom and the trunk compartment on the other side of the ship thereby lowering the C.G. of the ship to increase stability.
Patent GB-1271706-A (GB)
Title: Improvements in or relating to manganese-zinc ferrite materials
IPC: H01F1/34
Filed: 1969-10-23
Abstract: 1,271,706. Magnetic oxides. NIPPON ELECTRIC CO. Ltd. 23 Oct., 1969 [30 Oct., 1968], No. 52022/69. Heading H1H. A manganese zinc ferrite contains stannic oxide (up to 3À2% by weight) and lithium oxide (less than 0À125% by weight). The ferrite may also contain calcium oxide (less than 0À3% by weight) and silicon oxide (less than 0À04% by weight). The ferrite may be made by mixing and pulversizing in alcohol a mixture of iron oxide, manganese carbonate, zinc oxide, calcium oxide, silicon oxide, stannic acid and lithium carbonate, presintering the mixture for 4 hours at 800‹ C., pressing and then sintering for 8 hours at 1180‹ C. in an atmosphere of N 2  containing 0À4% O 2 . In one embodiment, the product is subsequently heated at 250‹ C. for 32 hours. Examples describe the effect of adding various proportions of oxides of tin, lithium, calcium and silicon to ferrites containing 32À0- 38-0 mol per cent MnO, 6À10-13À15 mol per cent ZnO and 54À40-55À90 mol per cent Fe 2 O 3 . The compositions have a quality factor tan # - < 1À3 x 10-<SP>6</SP> and a hysteresis loss factor Á L 10  < 5À0.
Patent GB-1148396-A (GB)
Title: An improved cable winch
Inventor: WIT SIMON DE
IPC: B66D1/74
Filed: 1966-11-22
Abstract: 1,148,396. Winch drums. TECHNISCHE HANDELMAATSCHAPPIJ VLIEGER N.V. 22 Nov., 1966, No. 52140/66. Headings B8B and B8M. A cable winching device comprises a frustoconical driven drum coaxial with and intermediate two further like drums, a frustoconical slot 4 being formed between each pair of drums to receive the cable in a single coil. Grooves at the peripheries of the drums are provided to feed the cable from one filled slot 4 to an adjacent empty one. The cable is fed on to the centre drum via pulleys 5, 6, 7, 8, the pulleys 5, 6 of which are drivable to tension cable between the drum and pulleys. The pulley 7 is biased by spring or weights to regulate the tension of cable fed to and from the drum by utilizing the movement of the pulley to control the drive to the drum. The upper drum which guides and shields the cable on the centre driven drum is freely rotatable relative to the centre drum during cable payout but is locked thereto during hauling. The slot 4 below the centre drum facilitates storage of wound cable and further drums may be added below the shown arrangement to increase the number of storage slots.