baber/WOPTO huggingface dataset:
Patent GB-1514499-A (GB)
Title: Process for recovering polypropylene
Inventor: BELLES BENJAMIN P
IPC: C08J11/08
Filed: 1975-11-12
Abstract: 1514499 Recovering polypropylene from solutions thereof STANDARD OIL CO 12 Nov 1975 [21 July 1975 14 Nov 1974] 46733/75 Heading C3L A method for the recovery of soluble polypropylene from solutions thereof comprises (a) partially steam stripping the spent organic polymerization medium to remove volatile components and to form an aqueous phase from condensed steam and a concentrated waterinsoluble phase containing soluble polypropylene, (b) separating the water insoluble phase from the aqueous phase and (c) evaporating volatile components from the separated waterinsoluble phase to obtain fluid polypropylene. The process may be carried out continuously to give concentrates containing 10-70 wt. per cent of soluble polypropylene in the spent polymerization medium which may be hexane.
Patent GB-1272819-A (GB)
Title: Monoazo dyes containing sulfonic groups
IPC: C09B43/34
Filed: 1969-09-24
Abstract: 1,272,819. Monoazo dyes. BADISCHE ANILIN- & SODA-FABRIK A.G. 24 Sept., 1969 [25 Sept., 1968], No. 46933/69. Heading C4P. The invention comprises monoazo dyes of formula wherein A is an optionally substituted arylene or aralkylene radical; n is 0, 1 or 2 and Z is the radical of a coupling component. Suitable radicals Z include anilines, aminonaphthalenes, indoles, pyrazolones, naphthols, phenols, quinolines, acylacetarylamides pyrazoles or perinaphthindanedione 1,3. The coupling components may also bear substituents e.g. halogen atoms, alkyl groups, sulphone, sulphonamido, carbalkoxy or acylamino groups. The dyes may be obtained by diazotization or coupling or alternatively a compound of the formula may be sulphonated by conventional methods. The dyestuffs give greenish yellow to violet shades on wool or synthetic polyamide fibre materials.
Patent GB-1371838-A (GB)
Title: Plough-share
IPC: A01B15/04
Filed: 1972-10-12
Abstract: 1371838 Plough shares LICENCIA TALALMANYOKAT ERTEKESITO VALLALAT 12 Oct 1972 [13 Oct 1971] 47078/72 Heading A1B A plough share with hardened coatings on its back surface 5 and at 9 on its planar front surface 7 has cutting edges 2 on teeth 3 and 10 at its pointed end 8 that are perpendicular to the direction of travel and have a cutting angle of 20-30‹.
Patent GB-1344405-A (GB)
Title: Sonobuoy receivers
IPC: H03H11/36
Filed: 1972-10-12
Abstract: 1344405 Amplifiers; hybrid couplers EDMAC ASSOCIATES Inc 12 Oct 1972 [21 Oct 1971] 47122/72 Headings H3W and H4R A sonobuoy receiver has a preamplifier for receiving a VHF signal from an aerial 15, Fig. 1, or the like, characterized by first and second stages, each having at least two amplifiers 7, 8 and 9, 10 respectively and two hybrid couplers, 1, 2 and 3, 4 respectively, the first hybrid coupler 1 of the first stage receiving the input signal, the second coupler 2 of the first stage and the first coupler 3 of the second stage respectively providing and receiving the input to the second stage, and finally the second coupler 4 of the second stage providing an output signal. In the embodiment, the output of hybrid coupler 4 feeds a directional coupler 5, one output 16 of which feeds a receiver, while the other output is divided by reactive hybrid divider 6 into four outputs 17, 19, 21, 23. Each of the hybrid couplers 1, 2, 3, 4, may comprise a transformer 22, Fig. 2 and resonating capacitors 23.
Patent GB-1517010-A (GB)
Title: Dolls
IPC: A63H3/04
Filed: 1975-11-17
Abstract: 1517010 Dolls MEGO CORP 17 Nov 1975 [18 Nov 1974] 47310/75 Heading A6S A stuffed bendable doll comprises an internal bendable body frame 23 strengthened by internal wires 28, 35 extending to the ends of the frame, the frame having a neck 24 to which a head is rotatably secured by a connection 25, are supports 26, 27 and leg supports 33, 34 hands 15, 16 and feet 19, 20 being rotatably secured to the supports and a fabric skin covering the frame and containing filling. The hands 15, 16 and feet 19, 20 are secured to the supports 26, &c., which are all in the same plane, by cylindrical enlargements, e.g. 40 at the ends 31, 32, 37, 39 of the supports partially received in slightly wider cylindrical sockets, e.g. 41 on the hands and feet and the hands and feet are moulded onto the looped ends 29, 30, 36, 38 of the respective wires 28, 35 which extend beyond the end of the enlargements and are twisted to allow rotation. The filling is retained in the skin at each hand and foot by a collar 43 integral with the respective support end, the skin being tied, at 44 over the collar and round the enlargement. The head is secured to the frame by a ball and socket joint, Fig. 4 (not shown). The wires which are of steel are moulded within the frame of P.V.C., the hands and feet also being moulded of P.V.C. and the head of a deformable plastics. The filling is cotton or urethane.
Patent GB-968574-A (GB)
Title: Improvements in earth displacing appliances
IPC: A01B67/00
Filed: 1962-12-14
Abstract: 968,574. Tractor power-lift mechanisms. GES FUR LINDE'S EISMASCHINEN A.G. Dec. 14, 1962 [Dec. 14, 1961], No. 47321/62. Heading A1P. The vertical displacement of a plough 28 is controlled by an element 8 operated by a piston 3 in a cylinder 2 which is connected by a pipe 1 with the fluid transmission system of a tractor whereby changes in the driving torque of the tractor affect the vertical displacement of the plough. The initial setting of the plough and thus the pressure in the cylinder 2 which represents the torque of the tractor is adjustable by a lever 14. In an embodiment the pressure in the fluid transmission system affects the lifting cylinder 19 directly.
Patent GB-1129476-A (GB)
Title: An improved method of applying tension to a wire or strip being pulled off a reel
Inventor: MITCHELL WILLIAM DOUGLAS
IPC: B65H59/16
Filed: 1964-11-20
Abstract: 1,129,476. Controlling delivery of wire. WINGET Ltd. 27 Oct., 1965 [20 Nov., 1964], No. 47354/64. Heading D1J. A device for applying tension to a wire W being pulled off a reel 4 comprises a roller 11 which is spring loaded against the reel and is retarded by a friction device. The reel 4 is mounted on a .spindle 4A Fig. 3 which rotates in bearings 3A carried by supports 1. A second set of bearings 3 are also mounted on the supports 1 and carry a spindle 2. The roller 11 is freely rotatable on a spindle 10 carried by arms 8 and 9 which are mounted on the spindle 2. Secured to the roller 11 is a grooved pulley 12 around which passes a cord 13. One end of the cord is fastened at 14 to the arm 9 and the other end is attached to an eye-bolt 15 which passes through a lug 17 carried by the arm 9. A spring 19 maintains the tension in the cord 13 and nuts 18 allow adjustment of the tension. The roller 11 is made of a material which will not slip on the wire and the tension of the cord 13 is adjusted so that slip occurs between the pulley 12 and the cord when the desired tension is reached in the wire. A slipping clutch may be used instead of the friction device described above. A spring 6 maintains the roller 11 in contact with the wire on the reel, from the full position to the empty position, the force applied by the spring being sufficient to ensure that there is no slip between the roller and the wire.
Patent GB-1332501-A (GB)
Title: Instrument for determining properties of a liquid such as transmittance turbidity and solution concentration
IPC: G01N21/59
Filed: 1970-10-06
Abstract: 1332501 Determining liquid properties IWATSU ELECTRIC CO Ltd 6 Oct 1970 [15 Nov 1969] 47570/70 Heading G1A An instrument for determining a liquid property comprises a slit orifice 9 in the bottom of a sample container 2 in which the sample level is maintained by an overflow arrangement, wire portion 11 depending from each end of the a slit orifice for forming a liquid film, a light source 10, and a photo-cell 13. A half silvered mirror 19 may be provided to direct light into a second path for source intensity reference purposes or for comparison with a reference sample, the cells being connected in a bridge. The two portions are looped to form a "U"
Patent GB-1255286-A (GB)
Title: Improvements in or relating to symmetrical surge voltage arresters
IPC: H01T1/22
Filed: 1970-10-08
Abstract: 1,255,286. Cold-cathode tubes. SIEMENS A.G. 8 Oct., 1970 [9 Oct., 1969], No. 47851/70. Heading H1D. A symmetrical surge voltage arrester comprises a tubular insulating body 1 and a pair of inwardly dished frusto-conical electrodes 2 and 3 mounted respectively in gas-tight fashion at either end of said body, the wall thickness of each electrode at its active surface 4, 5 adjacent to the other electrode being at least twice as great as the wall thickness of the conical side wall 6, 7 of the electrode in the neighbourhood of its junction with said body. The electrodes may be produced by drawing metal blanks. To form the arrester, electrodes 2, 3 of a Ni- Fe-Co alloy are sealed to a tubular insulating body 1 preferably of ceramic. The thickness (e.g. between 1 and 2 mm.) of the electrodes in the region of the active surfaces 4, 5 is preferably at least three times the thickness (e.g. 0À3 mm.) of the walls 6, 7. The thin walls form a barrier to the conduction of heat which is mainly absorbed in the thick portions of the electrodes and dissipated in solid metal contact pieces 8 and 9 brazed thereto.
Patent GB-1104730-A (GB)
Title: Steering device for track-laying vehicles
Inventor: TIDEMALM GUSTAV HILMER
IPC: F41H7/02
Filed: 1965-11-11
Abstract: 1,104,730. Steering endless-track vehicles. BOFORS A.B. 11 Nov., 1965 [17 Nov., 1964], No. 47971/65. Heading B7H. In steering means for an endless-track vehicle comprising hydraulic steering control means for selectively applying steering forces to power-driven track drive-shafts, safety valve means responsive to fluid pressure is arranged to open a fluid flow passage between a fluid inlet side and a fluid outlet side of the steering control means when and while the fluid pressure is below a predetermined value. In a vehicle including secondary track drive-shafts 8, 9 driven by a variable displacement hydrostatic steering motor 5 connected through hollow articulated pipes 3, 4 to an engine-driven pump 2 as described in Specification 1,078,627, the safety valve means 16 responds automatically to low pressure in the hydraulic system by connecting pipes 17, 18 so that the pump output by-passes the motor 5, and by releasing fluid pressure in pipes 21, 22 so that spring-applied brakes 23, 24 lock the secondary drive-shafts 8, 9. A time-delay incorporated in the safetyvalve means 16 maintains communication between the pipes 17, 18 for a predetermined interval after the pressure is restored. The safety valve means 16 comprises a valve 26 moved by a spring 28 into the position shown upon pressure failure to connect the pipes 21, 22 to a return line 20, and a valve 39 moved by a spring 43 to connect the pipes 17, 18. When the pressure in a supply line 19 is restored, pressure exerted on one end of the valve 26 through a passage 35 displaces the valve to connect the pipes 21, 22 with the supply line 19 and release the brakes 23, 24. Fluid from the supply line 19 also flows through a restricted passage 36 to a chamber 37 above the spool 39, but build-up of sufficient pressure in the chamber 37 to displace the spool and prevent communication between the pipes 17, 18 is delayed until enough fluid flows through a restricted passage 47 to displace a spring-loaded bell member 49 sufficiently to prevent the chamber 37 communicating with the return line 20 through a port 52 in the bell member 49, a passage 54 and a restricted passage 56.
Patent GB-1086704-A (GB)
Title: Improvements in semiconductor devices
IPC: H01L29/747
Filed: 1964-11-26
Abstract: 1,086,704. Controlled rectifiers. COMPAGNIE GENERALE D'ELECTRICITE. Nov. 26, 1964 [Dec. 12, 1963; March 11, 1964], No. 48188/64. Heading H1K. In a PNPN or symmetrical PNPNP or NPNPN controlled rectifier at least one of the outermost layers is formed in two parts, one of which forms with the adjacent layer a junction with backward diode characteristics and the other of which forms a junction with normal diode characteristics. The tunnel junction is in the main current path and the triggering voltages are applied through an electrode attached to the conventional diode forming layer. The arrangement overcomes the disadvantage of high triggering current normally associated with PNPN devices using outer tunnel junctions. In a typical device of the PNPNP type both outer layers are formed in two parts side by side, the different junction characteristics resulting from a non-homogeneous doping of the adjacent inner layers. Alternatively the device may be constructed as shown in Fig. 3b, the two layers being formed in common and then separated by cutting a slot 5. In this case a large main electrode P3 is provided on one face to facilitate cooling, while the remaining electrodes are disposed on the other face.
Patent GB-1102140-A (GB)
Title: Filter press
IPC: B01D25/12
Filed: 1966-10-27
Abstract: 1,102,140. Filter presses. T. SHRIVER & CO. Inc. 27 Oct., 1966 [19 Nov., 1965], No. 48280/ 66. Heading B1D. Filter cake is discharged from the plates of an opened filter press by supplying compressed air to the filtrate collecting interiors of the plates, behind filter cloths 31, 32 causing them to flex outwardly. The cloths are woven polypropylene or natural fibres, supported by metal screens 29, 30 and expanded metal 27, 28 on partition plate 23, and are retained in peripheral grooves by caulking strips 38, 39. The filter plates are square and the cloths octagonal (Fig. 1, not shown), corners of the plates being cut off to form inlet channels (19, 20), which are open to the outsides of cloths 31, 32, and outlet channels (21, 22), which communicate with the plate interiors by external conduits (42 - - 47). The air for flexing the cloths is delivered by valves (49) in these conduits or by separate valves 51 leading directly into the plates. Gaskets 33 and (34) seal between adjacent plates and channels (21, 22). The air pressure, applied with the press closed, may flex the cloths to squeeze filtrate from the cakes. Figs. 5, 6 (not shown) illustrate a plate whose partition plate (61) is integral with its frame portion. Fig. 7 (not shown) illustrates the hydraulically or pneumatically closed press.
Patent GB-1178123-A (GB)
Title: Ester Derivatives of 1,1,3,3-Tetramethylbutyl Hydroperoxide
IPC: C07C409/38
Filed: 1967-10-25
Abstract: 1,178,123. Esters of 1,1,3,3-tetramethylbutyl hydroperoxide. WALLACE & TIERNAN Inc. 25 Oct., 1967 [9 Nov., 1966], No. 48618/67. Heading C2C. [Also in Division C3] Novel peroxyesters of the formula where R is an alkyl radical, branched at the α-carbon position and having from 3 to 20 carbon atoms, are prepared by known methods, e.g. by reacting 1,1,3,3-tetramethylbutylhydroperoxide with an appropriate acyl chloride. Specified -C(O)-R groups are the isobutyrate, 2-ethylbutyrate, pivalate, 2-methylpentanoate, 2-ethylhexanoate, neoheptanoate, neodecanoate and neotridecanoate groups. The esters are used as initiators in polymerization and copolymerization reactions.
Patent GB-1200624-A (GB)
Title: Improvements in or relating to processes for coating a moving substrate with an extruded thermoplastic material
Inventor: VIOLETTE GLENN MARK
IPC: B29C48/08
Filed: 1967-10-26
Abstract: 1,200,624. Laminating. INTERNATIONAL PAPER CO. 26 Oct., 1967, No. 48666/67. Heading B5N. A process for coating a moving substrate 21 with an extruded thermoplastic material comprises extruding the thermoplastic material 11 in the form of a film 13, directing the film along a path, splitting the film longitudinally by means of at least one wire 15 disposed in the path of the film 13; drawing the split film down to the substrate, and laminating the split film to the substrate. In apparatus shown for carrying out the process the film 13 extruded from a die 10 and split by one or more wires 15, which may be heated, is laminated to the substrate 21 between a pressure roll 19 and drill roll 20. If it is desired to coat the whole of the substrate 21 except for one edge strip a single wire 15 is used and the portion 13a of the split film which would normally cover the said edge strip is removed by an endless belt 22 fed between the portion 13a and the substrate 21. The substrate may be paper or paperboard and the film 13 may be a polymer or copolymer of lower alkyl olefins, e.g. of ethylene, or propylene.
Patent GB-1481691-A (GB)
Title: Wheel chock
IPC: B60P7/12
Filed: 1974-10-21
Abstract: 1481691 Wheel chocks ANTHONY CARRIMORE (SALES) Ltd 21 Oct 1974 [20 Oct 1973] 48971/73 Heading F2E A wheel chock intended to co-operate with a support surface 0 for a vehicle comprises a base 1, a barrier 4 carried on the base to abut a vehicle wheel, and at least one catch 10, 11 for engagement with a hole or one of a number of holes in the support surface 0. As shown, the base 1 has ends 2, 3, between which a tubular barrier 4 is located. Holes 5 in base 1 are each covered by a plate 9 through which extends part 10 of a bar 6 having a rightangled foot 11. Each bar 6 has an operating handle 14 so that when the chock is oriented above surface 0 with feet 11 each pointing downwards through a hole and handles 14 depressed, the chock may then be turned upright and the handles 14 released, whereupon the Fig. 2 position is reached with feet 11 under surface 0 and handles 14 retained by springs 15 in notches 16 in sleeves 12, 13.
Patent GB-1062838-A (GB)
Title: An indicating device
IPC: G09F13/24
Filed: 1965-11-19
Abstract: 1,062,838. Changing signs. GATAG Ltd. Nov. 19, 1965 [Nov. 28, 1964], No. 49205/65. Heading G5C. An indicator comprises superposed transparent plates 4, each having recesses 5, the recesses in any one or more plate(s) being selectively filled with a coloured fluid to form a representation. The plates are backed by a translucent plate 8 and the representations may be illuminated by tubes 15 or by reflected light. The liquid may be ethyl alcohol, and may contain reflective or fluorescent components. The liquid is supplied by an electromagnetically operated pump 20 and overflows into containers 13. The supply tubes 9 each contain a magnetically actuated valve 11 should a representation need to be shown over a period of time. If the representations in all the plates are to be of the same colour a single supply tank 10 may be used.
Patent GB-1427900-A (GB)
Title: Electrical connector
IPC: H01R13/02
Filed: 1974-11-14
Abstract: 1427900 Two part couplings AMP Inc 14 Nov 1974 [26 Nov 1973] 49246/74 Heading H2E A connector comprises a housing having a male part 12 and a female part 14, both parts being integral mouldings of elastomeric material, the hood 44 being radially stretched on engagement, with the flange 46 then seated behind the enlarged end 20. Terminals 58, 60 are disposed in through-bores 22, 50 (Fig. 3, not shown) respectively with wires 64, 70 already crimped thereto. Ribs 24, 40 (Fig. 1, not shown) provide visual alignment for engagement of the parts 12, 14 and the housing may be of neoprene with the hood wall thickening towards the flange 46. A sealing boot 76 (Figs. 5-7, not shown) may additionally be used.
Patent GB-1447379-A (GB)
Title: Circuit having a switching voltage hysteresis
IPC: H03K3/3565
Filed: 1973-10-24
Abstract: 1447379 Field effect transistor Schmitt trigger ITT INDUSTRIES Inc 24 Oct 1973 [24 Oct 1972] 49524/73 Heading H3T A field effect transistor Schmitt trigger comprises an input transistor T1 connected to one supply terminal through resistance T4 and to the other terminal through a load transistor T2 to form an inverter, the output of the inverter controlling the voltage across the resistor to provide the switching hysteresis. As shown the control is effected by a further transistor T3. When T1 and T2 are in the form of a complementary inverter (Fig. 4, not shown) transistor T3 may be controlled via a further complementary inverter controlled by the output of T1.
Patent GB-1526767-A (GB)
Title: Magnetic domain wall propagation device
IPC: G11C11/14
Filed: 1975-12-05
Abstract: 1526767 Magnetic storage arrangements PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd 5 Dec 1975 [9 Dec 1974] 49997/75 Heading H3B In a magnetic domain wall propagation arrangement in which the wall is a straight line or a magnetic bubble boundary in a magnetic plate having an easy axis of magnetization M1, M2, Fig. 1, and a bias field H b  both normal to the plate, the maximum propagation velocity of the wall is improved by forming the plate of two magnetic layers 1, 2 with different magnetic properties, the effect of the composite being such that the wall has a net internal magnetization H i , Fig. 2, in the plane of the plate. A magnetic bubble 4 having a cylindrical domain wall 7 is shown, the bubble being propagated along a path formed by a T and I bar NiFe overlay 6, 6<SP>1</SP>, 6<SP>11</SP> by an in-plane rotating magnetic field H rot . A suitable magnetic plate is formed by depositing on a Gd 3 Ga 5 O 12  non-mag netic substrate, using liquid phase epitaxy, a layer 2 of Y 2À9  La 0À1  Fe 3À8  Ga 1À2  O 12  followed by a layer 3 of Y 2À9  La 0À1  Fe 4À0  Ga 1À0  O 12 .
Patent GB-504186-A (GB)
Abstract: 504,186. Thermally-actuated valves. SAFETY GAS DEVICES, Ltd., RABINOWICZ, M., and KESTENBAUM, I. Oct. 16, 1937, No. 28236. [Class 135] [Also in Group XI] The gas taps c of cooker or other burners are adapted to be held open against the action of a spring by means of a pivoted catch s, engaging a notch in a disc s<1>, rigid with a crank-arm m connected as by a rod and a crank-arm n with the tap, and connected with a thermostat r heated by the pilot-jet v so that the tap is automatically closed in the event of the jet being extinguished. The thermostat preferably consists of a coiled bi-metallic strip and may be provided with a cowl. Braking means may be provided on the taps to avoid the necessity of holding the tap open until the catch becomes operative. The pilot-jet v is pivotally mounted at w and controlled by the catch s so as to direct the flame towards one end of the coil, or a member in conductive relationship therewith, when the catch is acting. To enable the gas to be turned down without interfering with the automatic closing means, the arm n is rotatable and operates the tap through dogs z, z<1>, which allow the tap to be rotated through 90‹ with respect to the arm n. Gas taps of the types described in Specification 505,893 may be used.
Patent GB-1274583-A (GB)
Title: Improvements relating to methods and apparatus for dressing grinding wheels for cutting gears and like toothed members
IPC: B24B7/02
Filed: 1970-01-09
Abstract: 1,274,583. Trueing grinding wheels. GLEASON WORKS. 9 Jan., 1970 [3 March, 1969], No. 50522/70. Divided out of 1,274,581. Heading B3D. The subject matter of this Specification is identical with that described in Specification 1,274,581 but the claims are directed to a method and apparatus for dressing a grinding wheel having a cylindrical body portion terminating at one end in an annular cutting surface in which the grinding wheel is rotated about its axis in contact with a dressing tool and simultaneously a reciprocating relative axial feeding motion is provided between the grinding wheel and dressing tool to provide grooves in the cutting surface.
Patent GB-1122198-A (GB)
Title: Process for preparing aluminium base alloy
Inventor: SPERRY PHILIP ROGER
IPC: C22C21/08
Filed: 1965-12-02
Abstract: An aluminium alloy containing Si 0.6-0.9%, Mg 0.4-0.6%, Al the remainder is cast, homogenized to provide a uniform distribution of the Si and Mg in the alloy, extruded at more than 950 DEG F. and then cooled to 350 DEG F. or below in not more than 4 minutes.  The alloy may be homogenized at 970-1100 DEG F. for 4-20 hours; if necessary it is heated to 970 DEG F. or above for at least 2 minutes immediately prior to extrusion. After extrusion the section is cooled by air blast or water spray and may then be aged at 200-410 DEG F. for 15 minutes - 9 hours.