baber/WOPTO huggingface dataset:
Patent GB-1284906-A (GB)
Title: Magnetic head assembly
Inventor: KRONFELD LEONARD E
IPC: G11B5/105
Filed: 1969-09-26
Abstract: 1284906 Magnetic heads L E KRONFELD 26 Sept 1969 [9 Oct 1968] 47455/69 Heading G5R A magnetic head assembly comprises two transducers each formed of three limbs defining erase and record/playback gaps and located in two holders such that the erase gaps lie on opposide sides of a plane containing the record playback gaps. In the four-track bidirectional stereo head shown, each half is identical (Fig. 7) and includes a holder 13 containing C-cores 25, 26 carrying record/playback windings 44, 45 and separated by a screen 33 and intertrack spacer 34, C-cores 27, 28 and I-cores 40, 41 carrying one or two erase windings 47 and separated by a spacer 35. The cores and an inter-head screen 42 are located by an insert 16 having a slot 19a and resilient clamping loops 21, 23. Two assemblies are lapped and a record/playback gap-forming layer deposited on one or both assemblies which are then held together with spring clips 52, placed in a can 10, potted and the protruding pole tips ground to the desired configuration.
Patent GB-1017350-A (GB)
Title: Flow regulator valve
Inventor: WEBB JOHN
IPC: F16K47/16
Filed: 1964-11-23
Abstract: 1,017,350. Regulating fluid flow. UNITED KINGDOM ATOMIC ENERGY AUTHORITY. Nov. 23, 1964, No. 47541/64. Heading G3H. A flow regulator valve comprises two or more flow impedance means 11, 12, 13 which each in the absence of all others have a substantially invariable individual flow impedance and which when the valve is to introduce its maximum impedance to flow are spaced apart along the flow path and have a collective flow impedance no more than the sum of their individual impedances, and means 15 for varying the separation of the flow impedance means, reductions of the separation reducing the collective impedance of the means and hence that of the valve. In the preferred embodiment, each means consists of a dished plate having six orifices, the outer plates being movable towards and away from the central plate by opposite screw threads 17, 18. The plates may be rotated with respect to each other as they are separated, actuated by bellows, or provided with graded orifices to prevent cavitation. Grooves in the wall of the duct may be used in place of the orifices when gas flow is to be controlled. The valve may be used to control the upward flow through the core of a sodium cooled fast reactor and is made of stainless steel.
Patent GB-1030140-A (GB)
Title: Tissue dispenser box and holder
IPC: B60R7/08
Filed: 1963-12-03
Abstract: 1,030,140. Brackets. J. L. ROLL. March 2, 1965 [Dec. 3, 1963], No. 47582/63. Heading A4B. A bracket for supporting a cardboard box of facial tissues in a vehicle comprises a metallic strip 20 which engages in a slot in the box and is secured at the other end to the vehicle roof by means of a screw 30 passing through a slot in the strip, the screw 30 being a mounting screw of a rear-view mirror bracket 35.
Patent GB-1470172-A (GB)
Title: Rapier looms
IPC: D03D47/12
Filed: 1974-10-23
Abstract: 1470172 Weft inserters NATIONAL RESEARCH DEVELOPMENT CORP 23 Oct 1974 [12 Oct 1973] 47675/73 Heading DIE [Also in Division H2] An aluminium rapier 10 in a loom is driven through the shed by a linear induction motor. The linear motor comprises a primary in two sections 12, 14 and secondary cores 42, 44 which are held in place by the magnetic field of the primaries inside the rapier 10. Bearings 16, 18, 20, 56, 58, 60 are provided to support the rapier. The position and speed of the rapier are sensed by micro switches and photo electric cells and control circuitry is provided to accelerate, decelerate and hold the rapier in the end positions of its travel. In a modification (Fig. 4) the rapier may be of 'T' section with consequent modification of the linear motor.
Patent GB-1272048-A (GB)
Title: Voltage regulators for direct current supplies
IPC: H02J7/14
Filed: 1969-05-01
Abstract: 1,272,048. Automatic voltage control. ROBERT BOSCH G.m.b.H. May 1, 1969, [May 2, 1968], No.48009/71. Divided out of 1,270,840. Heading G3R. The rectified output voltage of a variable speed three-phase permanent-magnet alternator 28 is maintained at a predetermined value by connecting respective rectifiers 31, 32, 33 of the bridge 30 in parallel with respective thyristors 46, 47, 48 whose control electrodes are connected through resistors 51, 52, 53 to a Zener diode 55 responsive to the output voltage of the bridge 30, the arrangement being such that when the output voltage is below the predetermined value the thyristors are non-conductive due to diode 55 being blocked, and when the output voltage exceeds the predetermined value the diode 55 breaks down to apply firing pulses which make the thyristors conductive to short circuit the alternator output windings. Resistors 51, 52, 53 produce equal distribution of the firing pulses. The diode 55 may be replaced by a Zener diode connected to the tapping of a voltage divider connected between the output leads 34, 38, Fig. 3 (not shown). This modification may be used to control the thyristors in parallel with the rectifiers of a half wave arrangement rectifying the output of a three phase alternator whose star point is connected to the lead 38, Fig. 4 (not shown) The embodiment of Fig. 2 may also be applied to control a single phase alternator having a full wave rectifier bridge, Fig. 1 (not shown).
Patent GB-1204346-A (GB)
Title: Heat exchangers
IPC: F22B37/20
Filed: 1967-10-23
Abstract: 1,204,346. Steam generators; tubular heat exchange elements; tube supports. SULZER BROS. Ltd. 23 Oct., 1967 [11 Nov., 1966], No. 48037/67. Headings F4A and F4S. A heat exchanger comprises a number of tubulous members 3a, 3b, 3c &c. assembled between a core 1 and a casing 2 and being slightly conical. Each member 3a for example comprises three helically coiled parallel tubes whose starting points are offset at 120 degrees around the periphery, the same tube in member 3a has been marked with a cross in the Figure. All tubes are of the same length and an even temperature of the medium flowing through the tubes and of the medium flowing round the tubes is obtained. Members 3d-3f are formed of four helically coiled parallel tubes and members 3g-3i of five tubes. The axial distance between the turns of members 3b, 3c, for example, is greater than the corresponding distance in member 3a. Rods 4 have hooks 5 supporting each tube, the rods being welded to arms 6, 7. These arms are hollow and may act as inlets and distributers for the medium flowing through the tubes. The tubes of successive members are coiled alternately to the right and to the left to cancel out twisting forces. These heat exchangers may be used as steam generation heat exchangers of pressure fired steam generators or in nuclear power plants.
Patent GB-1501750-A (GB)
Title: Strain relief adaptor for relieving strain on insulated conductors engaged in insulation-piercing contact portions of an electrical connector
IPC: H01R4/24
Filed: 1975-11-24
Abstract: The strain relief device consists, for example, of two elongated parts (44, 44') which can be installed in the connector (10). Each part (44, 44') has webs (52) which press against the conductors which are connected to the contact connecting parts of the connector, a conductor clamping device (74) in which the outgoing sections (124, 126) of the conductors are firmly clamped, and deflection guides (66) which hold the conductors in order to prevent displacement of the sections (120, 122) of the conductor which are connected to the contact connecting parts. These parts (44, 44') relieve the tension, which is caused by strain on the incoming and outgoing conductors (116, 118; 124, 126), on the sections of the conductors which are connected to the contact connecting parts. <IMAGE>
Patent GB-1437810-A (GB)
Title: Drive control for an endless conveyor belt
IPC: H02P5/50
Filed: 1973-10-18
Abstract: 1437810 Conveyer belt drive control EICKHOFF MASCHINENFABRIK U EISENGIESSEREI mbH Gebr 18 Oct 1973 [27 Oct 1972] 48707/73 Heading B8A [Also in Division G3] The drive motor of a conveyer belt is controlled when starting and stopping by comparing the actual value of an operating factor with a desired value and using the difference signal to control the drive motor energization. In one embodiment the acceleration/deceleration of the belt is kept constant and in the other embodiment the tension on the belt is monitored and the drive torque adjusted so that the tension does not exceed a preset value. The drive end of the conveyer belt, running in the direction of arrow 2, is provided with a driving drum 3, a tail drum 4 and a tension drum 5 which is connected by a rope 10 to a stepping motor 7. A three phase drive motor 6 is mechanically connected to driving drum 3 and to a tacho-generator 11 and is electrically connected to the supply 16 through thyristors 14 controlled by regulator 12 so that the frequency and voltage to the motor can be varied. The speed reference signal is produced from transmitter 13 where tapping 18 is driven at constant speed along potentiometer 17 to give a linearly increasing or decreasing voltage so that regulator 12 produces control signals to cause the motor to have constant acceleration or deceleration. The speed of movement of wiper 18 can be altered to give different pre-determined rates of acceleration. In the other embodiment, Fig. 2 (not shown), a load cell attached to the rope 10 provides a signal of the actual tension in the belt and this is compared with a fixed voltage representing the maximum permissible tension to cause regulator 12 to operate motor 6 at a torque such that the tension in the belt is maintained constant on starting and stopping.
Patent GB-1524090-A (GB)
Title: Polyisocyanurate foams
IPC: C08G18/22
Filed: 1976-11-24
Abstract: 1524090 Polyisocyanurate foams TEXACO DEVELOPMENT CORP 24 Nov 1976 [29 Dec 1975] 48876/76 Heading C3R [Also in Division C2] A cellular polymer containing recurring isocyanurate and urethane linkages is the reaction product obtained by bringing together in the presence of a blowing agent, a polyether or polyester polyol and an aromatic polyisocyanate using as an isocyanurate group formation catalyst an aminomethacrylate salt of the formula where the radicals R are selected from C1-C4- alkyl and hydroxy C1-C4-alkyl or when taken together with the adjacent nitrogen atom are selected from morpholino, C-substituted morpholino, N-alkylpiperazino and C-substituted N-alkylpiperazino and M is selected from Na, K, Cs, Li and Rb. The polyisocyanate is preferably a methylene bridged polyphenyl polyisocyanate mixture. Preferred polyols have an OH number of from 100-500 and a molecular weight from 100-1000 and may be polyoxyalkylene polyols including adducts of alkylene oxides with various polyhydric and polyamine initiators; polyesters of polyhydric alcohols and polycarboxylic acids; lactone polyols; phosphoruscontaining derivatives, e.g. tris(dipropylene) glycol phosphite; and polymer/polyols produced by the in situ polymerization of a vinyl monomer in a polyol. The blowing-agent may be a halogen-substituted aliphatic hydrocarbon water, a low boiling hydrocarbon or a thermally unstable compound. Optional additives include another isocyanurate group formation catalyst and conventional polyurethane catalysts, e.g. strong bases, alkali metal salts of carboxylic acids, non-basic metal salts of carboxylic acids and aliphatic and heterocyclic tertiary amines, e.g. quaternary ammoniumhydroxide, alkali metal hydroxides and alkoxides, sodium benzoate, N,N-di-(C1-C2- alkyl)-piperazine, trialkylamines, triethylenediamine, 2,4,6 - tris(dimethyl aminomethyl)- phenol and N,N<1>,N<11>-tri-(dimethylaminopropyl)- hexahydro - s triazine; reactive and additive fire retardants, e.g. halogenated organic phosphates, triphenyl phosphite, diammonium phosphate, antimony oxide, chlorendic acid derivatives, phosphorus-containing polyols and diethyl - N,N<1> - bis(2 - hydroxyethyl)aminomethyl phosphonate; fillers, e.g. hydrated alumina, polyethylene, Al powder, clays and talc; emulsifiers and stabilizers, e.g. sulfonated castor oil, polydimethylsiloxane, a polyoxyalkylene block copolymer of a silane ethylene oxide modified-sorbitan, -mono-palmitate or -polypropylene ether glycol. The foams may range from flexible to rigid products and may be prepared by the one-shot or quasi-prepolymer method. In the examples foams are prepared by the one-shot method at room temperature from the following formulation: a novolakbased polyol, a methylene-bridged polyphenyl polyisocyanate mixture, FREON (RTM), a silicone polyether surfactant and any one of the following catalysts: potassium N-methylpiperazino methacrylate, potassium, sodium or cesium morpholino methacrylate, or potassium bis-hydroxyethylamino methacrylate in diethylene glycol, triethylene glycol or polyethylene glycol.
Patent GB-1014263-A (GB)
Title: Method for the manufacture of short fibres from yarns of a brittle material and the short fibres obtained thereby
IPC: D01G11/02
Filed: 1964-12-03
Abstract: In the production of short, e.g. 0.3-0.5 mm., fibres, twisted or untwisted continuous filament or staple fibre yarn of glass or slag is seized between rollers and fed thereby into an enclosed space, e.g. within a stuffer-box crimper, containing compressed broken yarn which exerts a constant pressure on the inconing yarn sufficient to ensure that the yarn is continuously folded, broken and compressed in the space.ALSO:In the production of short e.g. 0.3-0.5 mm., fibres, twisted or untwisted continuous filament or staple fibre yarn of brittle material e.g. glass or slag, is seized between rollers and fed thereby into an enclosed space e.g. within a stuffer-box crimper, containing compressed broken yarn which exerts a constant pressure on the incoming yarn sufficient to ensure that the yarn is continuously folded, broken, and compressed in the space.
Patent GB-1398319-A (GB)
Title: Driven mandrel for continuous production of tubing
IPC: B29C53/74
Filed: 1972-10-25
Abstract: 1398319 Spiral mandrel OWENS-CORNING FIBERGLAS CORP 25 Oct 1972 [2 Nov 1971 13 July 1972] 49268/72 Heading B5A [Also in Divisions B8 and F2] Continuous tubing for pipes and tank shells may be formed on site by spraying, extruding, hand-laying or winding fibres and liquid resin upon a mandrel comprising a plurality of cylindrically arranged supports 10, 33, 34 and an endless strip 30 which is wound helically therearound to provide the forming surface and which is supported for movement longitudinally thereof to conrinuously feed the tubing off the mandrel. After finishing its working run at the support 34, the strip 30 travels along a downward helical path interiorly of the supports 10 to recommence its working run at the support 33. The strip 30 may be driven and supported axially of the mandrel by rollers 12 provided with grooves 40 or flanges (41, 42, Figs. 5, 7) for accommodating a strengthening flange 37 or rib (38, Fig. 6) on the strip The rollers 12 may be driven by a roller chain 23 passing around sprockets 20, 21 on each support and a radially adjustable tightening wheel (25, Fig. 4) mounted upon the shaft of variable drive hydraulic motor (26). The strip 30 is guided on its downward return run by rollers 36 adjustably mounted on struts 16 of the supports. The latter may be supported upon radial beams 18 having screws, slides or spaced holes for providing continuous or incremental radial adjustment of the supports. The beams 18 may be pivoted to (or detachably mounted upon a ring (19) to facilitate transportation of the mandrel. The supports 10, 33, 34 may be mounted on a stationary base or on a base rotating counter-clockwise to the strip 30. The mandrel may operate vertically or horizontally and may be provided with external or internal heaters (50, Fig. 3). The strip 30 may be of steel, may be corrugated (34, Fig. 7), may be strengthened by a longitudinal fold or by profile changes across its width and may have a tapered edge (48, Fig. 5).
Patent GB-1330507-A (GB)
Title: Electronic keyboard musical instruments
IPC: G10H1/057
Filed: 1970-10-16
Abstract: 1330507 Transistor oscillators WURLITZER CO 16 Oct 1970 [20 Oct 1969] 49327/70 Heading H3T [Also in Division G5] An r.f. oscillator for use in a musical instrument comprises a transistor having an inductor 134 as emitter load and a feedback connection via capacitor 144. Diodes 148, 150 permit higher peak-to-peak r.f. voltages to be developed.
Patent GB-1291933-A (GB)
Title: A method and apparatus for purifying gases
Inventor: GUSTAVSSON KARL AXEL GORAN
IPC: B01D46/18
Filed: 1970-10-16
Abstract: 1291933 Filtering ofgases and adsorption BAHCO VENTILATION AB 16 Oct 1970 49341/70 Heading B1T Solid, liquid, and/or gaseous impurities are removed from a gas stream by feeding powdered adsorbent 3 into the gas upstream of casing 5, which encloses a .vertically orientated endless filter band 6, through which the gas passes inwards to outlet 7, depositing the adsorbent on the outer surface where it filters and adsorbs impurities, the. adsorbent and impurities being blown off the band where it passes round nozzle 10, 11. The adsorbent may be active carbon or diatomaceous earth, which is discharged after use, or it may be a metal oxide or carbonate, in which cases it is recirculated to hopper 2, where a grinding mill exposes new surfaces before feeding it into the gas again. Outlet 7 is connected to a suction fan. The apparatus may remove soot; SO 3  mist and gaseous H 2 S and SO 2  from smoke.
Patent GB-1370155-A (GB)
Title: Package
IPC: B65D75/54
Filed: 1971-10-25
Abstract: 1370155 Multicompartment packages/bags INDUSTRIELE ONDERNEMING WAVIN NV 25 Oct 1971 [23 Oct 1970] 49557/71 Headings B8C and B8K A tubular plastics foil is provided with a transverse seal 4 intermediate its ends so as to form two open compartments 5, 5<SP>1</SP>, an article 12 is inserted in the compartment 5<SP>1</SP> and the compartment sealed at 3, and corresponding documentation, e.g. an invoice 6, is inserted in the compartment 5 which is then sealed at 2, tearopen perforations 13, 14 being provided adjacent the seals 2, 3, the torn-off strips providing a lace 23 which can be laced through larger perforations 20, 20<SP>1</SP>, 20<SP>11</SP> adjacent the perforations 13, 14, for reclosing the compartments. The foil may be transparent and be provided with an opaque ink-receiving ground 7 which leaves a window 8 through which an address 9 on the invoice is visible, the invoice being so folded that, a price thereon is invisible whilst a description of the article 12 is visible at the back of the package.
Patent GB-1412984-A (GB)
Title: Mine roof supports
IPC: E21D11/24
Filed: 1972-10-27
Abstract: 1412984 Mine arch supports COAL INDUSTRY (PATENTS) Ltd 19 Oct 1973 [27 Oct 1972] 49649/72 Heading E1E In an articulated mine roof support comprising first and second joint members adapted to be connected at one end as by welding to the associated roof section 3 or leg section 4, one joint member 5 has a recess 12 to accommodate a projection 21 on the other joint member and at least one of the abutment faces thereof is curved. The joint member 5 has an extension 11 to potition the roof section 3. In a modification, Figs. 5 and 6 of the Provisional Specification (not shown) the joint members are bifurcated to seat on the web of the associated section and are then welded and bolted thereto. Two such arch members as above may be interconnected to-gether by tubular struts and wire mesh.
Patent GB-1060500-A (GB)
Title: Improvements in or relating to yielding roof supports for mines
IPC: E21D15/44
Filed: 1963-12-18
Abstract: 1,060,500. Hydraulic pit props. W. EGGEMANN and E. VON CAMPENHAUSEN. Dec. 18, 1963 [Dec. 24, 1962; Nov. 7, 1963], No. 49910/63. Heading E1E. A hydraulic pit prop comprises a piston tube 30 movable within a short cylinder 18 suspended, hingedly or otherwise, from the upper end of a guard tube 12, Fig. 2 (not shown), which may have a detachable extension piece (11) at its foot. The piston tube 30 is clamped against a piston head 27 by a threaded tube 35 rigid with a plate 38 seated on a shoulder therein. The tube 35 opens into the cylinder chamber 23, and its upper end carries a relief valve 41 exhausting into the upper end of tube 30, which may subsequently be emptied through bores 34. The prop may be released by opening the inlet ball valve 25. The outer surface of the piston tube 30 is chromed or otherwise hardened.
Patent GB-1480368-A (GB)
Title: Protection of iron or iron-containing metal from corrosion by water
IPC: C23F11/12
Filed: 1974-11-20
Abstract: 1480368 Anticorrosive agent BASF AG 20 Nov 1974 [21 Nov 1973] 50174/74 Heading C7E An ene-adduct of maleic anhydride on at least one C 12 -C 24  unsaturated fatty acid containing an olefinic double bond, or an ester or amide of such acid saponified with an inorganic base or a mono-amine is used as an anticorrosive agent for protection of Fe or its alloys, e.g. in machining liquids, polishing media, industrial process water, or other liquids. The adducts are obtained by mixing the acid and anhydride with heating, followed by saponification with the abovementioned bases. Said acid may be palmitoleic acid, coconut fatty acid, palm kernel fatty acid, tall oil fatty acid, oleic acid, elaidic acid, ricinoleic acid, linoleic acid, linolenic acid, linseed oil fatty acid, train oil fatty acid, cottonseed oil fatty acid, peanut oil fatty acid and/or erucic acid:- 0À8 to 1À2 moles of acid and 0À8-1À2 moles moleic anhydride are used. Said base may be NaOH, KOH, NH 3 , Me 3 N, Et 3 N, i-Pr 3 N, i-Bu 3 N, triethanolamine, or triisopropanolamine; 0À5-5 wt. per cent of the adduct is added to the liquid.
Patent GB-1080145-A (GB)
Title: A lathe or like tool holder for cutting bits
IPC: B23B27/16
Filed: 1965-11-25
Abstract: 1,080,145. Tool holders. STORA KOPPARBERGS BERGSLAGS A.B. Nov. 25, 1965 [Dec. 9, 1964], No. 50191/65. Heading B3B. In a tool having a cutting bit 3 clamped by a clamp 9 to a seating 2 in the tool holder body 1 the rear part of the clamp 9 is provided with a domed lug 14 which engages an inclined surface 16 of a recess 15 in the tool holder body 1 so that as the clamp is tightened down by means of a bolt 7 not only is rotation of the clamp prevented but in addition it is drawn backwards slightly to clamp the cutting bit 3 firmly against its rearward seating face 17. In order to allow for this backwards movement a measure of slackness is left between the threads 8 of the fixing bolt 7 and corresponding threads on the clamp 9 and similarly a shank or sleeve 18 which forms part of the clamp 9 and projects into a cylindrical recess 19 in the tool holder body is made slightly oval to allow clearance at its front and rear faces. The bolt 7 has threaded parts 6, 8 of differing pitch to provide clamping action on tightening down the bolt.
Patent GB-1280387-A (GB)
Title: Method of removing undesirable stimulants from coffee
IPC: A23F5/16
Filed: 1970-10-23
Abstract: 1280387 Treating coffee beans HAG AG 23 Oct 1970 [26 June 1970] 50499/70 Heading A2B A method of removing undesirable substances from coffee comprises treating green coffee beans which have not been treated with water, with methylene chloride at 50-90‹C e.g. for 0.5-4 hours. After treatment the methylene chloride may be drawn off, any remaining methylene chloride being removed by steaming under reduced atmospheric or superatmospheric pressure. The treated beans may be dried and roasted.
Patent GB-1056509-A (GB)
Title: Metal coated insulating body
IPC: C23C18/18
Filed: 1965-12-02
Abstract: An insulating body such as glass is coated with a Ni/Pd film by applying to the body a solution of nickel chloro palladate in an organic solvent such as a mixture of alcohol and ether and heating to 350 DEG -500 DEG C. to decompose the palladate.  An outer coating of Ni may then be deposited electrolytically or electrolessly.  A few drops of turpentine may be added to the organic solvent and solutions exemplified contain 0.3 or 0.9 grams Ni to 20 ccs. of the mixed ether and alcohol.