baber/WOPTO huggingface dataset:
Patent GB-1222025-A (GB)
Title: Improvements in or relating to the manufacture of resin-bonded laminates
Inventor: PAXTON JOHN COLTHERD
IPC: B29C70/46
Filed: 1968-09-10
Abstract: 1,222,025. Glass-cloth laminates. ASSOCIATED ELECTRICAL INDUSTRIES Ltd. 2 Sept., 1969 [10 Sept., 1968], No. 43004/68. Heading B5N. [Also in Division C3] A laminate is made by impregnating and bonding layers of glass-cloth with the condensation product of diphenyl oxide and a dialkyl, e.g. dimethyl, ether of p-xylylene glycol. The reactants are condensed in the presence of acidic clay and the liquid resin used to impregnate glass-cloth; a plurality of layers are pressed together and heated during or after pressing to cure the resin. After impregnation the resin may be pre-cured at 150-200 C., pressed at above 200 C., and then heated after pressing, to effect final cure. The clay may be ball-clay activated with orthophosphoric acid or sulphuric acid, or kaolinite.
Patent GB-1390354-A (GB)
Title: Preparation of benzal chloride
IPC: C07C17/32
Filed: 1971-09-16
Abstract: 1390354 Production of benzal chloride BRITISH PETROLEUM CO Ltd 3 Aug 1972 [16 Sept 1971] 43180/71 Heading C2C Benzal chloride is obtained by reacting benzene with dichlorocarbene. The dichlorocarbene is preferably prepared by the vapour phase pyrolysis of chloroform.
Patent GB-1152079-A (GB)
Title: A Process for Treating Crude Alkylated Phenols
Inventor: BILLER EFIM
IPC: C07C37/72
Filed: 1967-09-22
Abstract: 1,152,079. Purifying alkylphenols. UNION RHEINISCHE BRAUNKOHLEN KRAFTSTOFF A.G. 22 Sept., 1967 [7 Oct.. 1966], No. 43226/67. Heading C2C. Alkylphenols obtained by reacting phenol with MeOH, EtOH or the corresponding ethers or halides in presence of an aq. solution of ZnX 2  with a lesser quantity of HX (X= Cl or Br) are treated for the removal of catalyst ingredient residues prior to distillation by (a) depressurizing to atmospheric pressure before and/or after addition of a water-insoluble inert organic solvent, (b) separating the organic phase, (c) passing this with water over a solid basic Zn compound, (d) separating the organic phase, (e) washing it with water, (f) preparing a catalyst suitable for recycling from the aq. layers by distilling off water and optionally adding HX, and (g) distilling the organic layer.
Patent GB-1478474-A (GB)
Title: Receptor sheet
IPC: C08J7/046
Filed: 1974-10-04
Abstract: 1478474 Receptor sheets comprising crosslinked polyvinylbutyrals OCE-VAN DER GRITEN NV 4 Oct 1974 [4 Oct 1973] 43226/ 74 Heading B2E [Also in Division C3] A receptor sheet comprises a flexible support e.g. polypropylene, polyester, polyamide, polycarbonate and linen provided on at least one side with a drawing layer which contains a crosslinked thermoplastic binder and one or more toothing agents wherein the binder comprises at least 50% by weight of a polyvinylbutyral which has been crosslinked with an etherified polymethylol melamine using an acidic catalyst, the polyvinylbutyral before crosslinking containing at least 18% by weight of vinyl alcohol groups. The toothing agent may be diatomaceous earth, glasspowder, TiO 2 , ZnO, kaolin or silica. In the examples a polyethyleneterephthalate film pretreated with trichloroacetic acid is coated with a mixture of polyvinylbutyral containing vinyl butyral, vinyl alcohol and vinyl acetate groups, hexamethoxymelamine, poly(N, N dimethyl 3, 5 methylenepiperidinium chloride) as antistatic agent; p toluene sulphonic acid or a mixture of cyclohexylsulphamic acid and potassium sulphate, a mixture of two silicas of different surface area and particle size, methylene chloride and 2 methoxymethanol. The drawing layer may be covered with an ink receiving top layer as described in Specification No. 1448889.
Patent GB-979549-A (GB)
Title: Improvements in or relating to sliding clasp fasteners
Inventor: WARBURTON GEOFFREY
IPC: A44B19/60
Filed: 1962-11-15
Abstract: 979,549. Making sliding clasp fasteners. AERO ZIPP FASTENERS Ltd. Oct. 10, 1963 [Nov. 15, 19621, No. 43231/62. Heading B3A. A device for clinching an end stop member to interlocked stringers of a sliding clasp fastener, comprises a clamp arranged to clamp both stringers in position relative to each other during the clinching operation. The end stop is inserted by a machine having a plunger 1 and an anvil 3 which is pivoted at 4 to move between a loading position B and an operating position A. Pivoted to the anvil is a clamp 5, biased by a spring 8 to the position C in which it bears on the assembled stringers. A handle 7 enables the clamp to be opened to the position D. It is stated that the clamp may be operated by a cable, an electromagnet or by fluid pressure means.
Patent GB-1202375-A (GB)
Title: Apparatus for inserting needle rollers into roller bearings
Inventor: KOCH HEINZ
IPC: F16C43/06
Filed: 1967-09-22
Abstract: 1,202,375. Bearings. GELENKWELLENWERK STADTILM VEB. 22 Sept., 1967, No. 43281/67. Heading F2A. Needle-rollers 4 are inserted in an outer bearing-race 1 by a vertically-movable sleeve 9 expelling them from a circular track 20 between a pin 8 and sleeve 10, the rollers being pushed into the track past a non-return device (5), Fig. 1 (not shown), and through a rectilinear channel (19) by a comb-like rack (6). A plate 15 guides the rollers into the track as they issue from the channel. The pin 8 moves with the sleeve 9 so as to sustain the circular disposition of the rollers as they enter the race. A resilient ring 12 retains the rollers in the track until they are ejected into the race by the sleeve 9.
Patent GB-1116086-A (GB)
Title: Improvements in safety valve supports
Inventor: MCCABE PETER
IPC: F16L3/00
Filed: 1964-10-23
Abstract: 1,116,086. Supporting pipes. VOKES BERGEN GENSPRING Ltd. 25 Oct., 1965 [23 Oct., 1964], No. 43335/64. Heading F2P. A support for a safetyvalve 1 and its vertical exhaust pipe 5 extends from a steam connection 4 to the pipe 5 towards the mounting for the safety valve and incorporates a bellows 11 sealed at its lower end 8 to a solid abutment 9. The valve I is of known type and is attached by its flange (not shown) to a steam drum 2. A horizontal outlet 3 connects the valve to the pipe 5 through the curved connection 4. The pipe 5 is supported at its top end by constant support hangers or tension rods (not shown) and at intermediate points 6 and 7 in gimbal joints which incorporate bellows in known manner. A neck 10 is formed where the bellows are attached to the pipe 5.
Patent GB-892393-A (GB)
Title: Flotation of niobium bearing minerals
IPC: B03D1/001
Filed: 1959-12-22
Abstract: Niobium bearing ores, particularly pyrochlore, are concentrated in a flotation process using a cationic promoter of the amine type together with a source of free fluoride or fluosilicate ions, the process being used in an acidic circuit.  Ores containing large amounts of carbonate and phosphate may be first treated with a suitable promoter and a niobium depressant such as caustic starch or an alkali silicate to float off these materials, leaving a niobium rich tailing which may then be treated with an amine type promoter, and caustic starch as a niobium depressant, to float off mica.  The tailings may be then subjected to magnetic separation and the residue subjected to the niobium flotation as above.  A sulphide recovery step, using a xanthate collector may be interposed before the niobium recovery.  In an alternative procedure the silicate, oxide and niobium content of the ore is floated off together from the carbonate and phosphate, and is then treated for mica, iron and niobium recovery as previously described.  Ores having a silicate content, and low phosphate and carbonate, may go direct to the mica separation stage.
Patent GB-1482350-A (GB)
Title: Ultra sonic testing
IPC: G01N29/032
Filed: 1973-09-17
Abstract: 1482350 Ultrasonic testing UNITED KINGDOM ATOMIC ENERGY AUTHORITY 12 Sept 1974 [17 Sept 1973] 43608/73 Heading G1G Ultrasonic apparatus for measuring the volume of inclusions in a medium e.g. the volume of gas entrained in bubbles in flowing water, includes irradiation and detection of echoes in the medium 2, using pulsed transducer 1, which is driven by pulse generator 3, the total energy in the echo pulses being detected, so that either the number of bubbles or volume of entrained gas is measured, or the fractional composition of bubbles of predetermined sizes is displayed or recorded. The received backscattered echo signal is amplified in tuned amplifier 5. Control circuit 9 which has a feedback arranged to modify the amplified signal according to a square law, thus compensating for the propagation losses of the ultrasonic signal provides a minimum detection thresholds for analyzers 10 whereby the threshold levels of the channels thereof follow a square law and triggers analyzer 10, when a pulse is detected, to strobe through 10 channels to determine in which the detected bubble size fell in a range e.g. 0-2 mm, over ten intervals. For each pulse from trigger circuit 3, digital generator 11 stores the echo signals in ten channels proportional to size and the stored signal amplitudes are cubed whereby the output signal varies as three halves of the value of the input signal to the analyzer 10. From this, several read-outs may be obtained: the volume of gas, the number of bubbles, or, via scaler 14, and print-out 15 a histogram of bubble size. A sampling integrator 6, may also be used to display the reflected signal, on a chart recorder 7, from a reflector 16 which is provided. When a large number of small bubbles is present, the amplitude of the signal from reflector 16 may be used to measure the transmitted signal attenuation to provide an indication of the void fraction. The swept gain of amplifier 5 may be varied from the 'squaring' value to compensate for changes in the propagation properties of the medium on the occasion of a very high proportion of bubbles.
Patent GB-1510416-A (GB)
Title: Reverberation device
IPC: G10K15/10
Filed: 1976-10-22
Abstract: 1510416 Reverberation devices SANSUI ELECTRIC CO Ltd 22 Oct 1976 43995/76 Heading H4R [Also in Division G5] In a reverberation system an input signal is applied to a transducer 7 to cause vibration of elements 4-1 to 4-n each of which is tuned to a different pitch. The vibrations of the elements are detected by transducer 8, and mixed with the original signal to provide an output signal with reverberation. The vibratory elements may be steel strings tensioned between posts 6-1 to 6-n and 4-1a to 4-na or piano wires supported only at one end with the strings or wires forming the armatures of moving iron transducers.
Patent GB-1394636-A (GB)
Title: Fasteners
IPC: B65D67/02
Filed: 1973-09-24
Abstract: 1394636 Clips SIGNODE CORP 24 Sept 1973 [16 Oct 1972] 44635/73 Heading E2B Means adapted to hold at least two members such as wires, to each other comprises a fastener 12 defining an open zone 19 and a body B of foam material fast with the fastener and disposed within at least a portion of the open zone; when the fastener is clinched about the wires the foam material is compressed between the wires and the fastener. As shown in Fig. 1, the fasteners are in the form of U-shaped clips having on one limb a single leg 16 and on the other limb a pair of spaced apart legs 18, the foam material F securing the clips to each other, and providing individual foam bodies B, to form a stack 10 of separable clips. In modifications, (a) the foam material F projects outwardly beyond the limbs of the clips, (b) the limbs 32 of the clips 30, Fig. 5, diverge, and (c) the clips are of a J shape.
Patent GB-940094-A (GB)
Title: Improvements in and relating to electrically operated clocks
IPC: G04G9/04
Filed: 1961-12-13
Abstract: 940,094. Clocks. T. BROMLEY. July 3, 1962 [Dec. 13, 1961], No. 44655/61. Heading G3T. [Also in Division G4] An electrically operated clock shows the time as changing numbers and has an electric motor driving a double-arm hour-hand and a double-arm minute-hand of which each arm carries an electric current and engages one of four rings of contacts which are connected to tens hour numbers,units hour numbers, tens minutes numbers and units minutes numbers respectively so that as the hands rotate the appropriate numbers receive current to show the time. The time is shown by four electron tubes a,b,c,d each having cathodes in the shape of numbers of which one is caused to glow when that cathode is connected in circuit. The double-arm hour and minute hands H, K and O, L respectively are driven by a conventional electric clock motor M, these arms each engaging a respective one of four separate rings of contacts A, B, C, D respectively. The tubes have their anodes connected in common through a rectifier as shown to one line of an A.C. supply to the motor M. The numerals of tubes a,b,c, and d are connected as follows:- Numerals 0 and 1 of tube a to the respective contacts of the two-contact ring A; numerals 0 to 9 of tube b to the contacts of ring B which are twelve in number with two pairs of two alternate contacts in common circuit as shown with the numerals 1 and 2 respectively; numerals 0 to 5 of tube c each to one contact of the six contact ring C; and numerals 0 to 9 of tube d to the sixty contacts of ring D of which the contacts corresponding to like numbers are in common circuit as shown. The contacts overlap in spaced relation and are resiliently engaged by the arms which thereby spring from one contact to the next at each time change. Accordingly, arm L takes one minute to traverse a contact of ring D whilst arm O takes ten minutes to traverse a contact of ring C; arm K takes one hour to traverse a contact of ring B; whilst ring A is conductive to the numeral 1 of tube a for a quarter of one revolution, i.e. between the hours of ten and one o'clock, the other contact in this ring being either insulated so that the tube does not light up or conductive and in circuit to the zero of the tube. Thus at one o'clock the four tubes, which may be arranged in a straight row, show 0100. At one minute past one o'clock they show 0101; at ten minutes past one o'clock 0110, and so on, tube d showing the minutes by units and tube c by tens, the hour units tube b changing hourly and the tens of hours being indicated by numeral 1 on tube a during the tenth, eleventh, and twelfth hours. The device may be constructed in the form of a master clock operating several sets of tubes at different locations. The hands may be made visible for conventional time telling or may be concealed.
Patent GB-1527353-A (GB)
Title: Apparatus for use in processing sheets or strips of recording material
IPC: G03G15/10
Filed: 1974-10-15
Abstract: 1527353 Liquid treatment AGFAGEVAERT 24 Sept 1975 [15 Oct 1974] 44666/74 Heading B2L Apparatus for developing photographic or electrostatic images on sheet material comprises a trough in which liquid supplied by a pump wells-up and over-flows to contact the bottom of the sheet, the pump is switched on and off automatically by switches responsive to the passage of the ends of the sheet. As shown sheets 10 are fed by pairs of edge-gripping conveyors 19, 25 over a series of troughs 13. The trough includes a porous screen of sintered copper, which may be ridged to promote regular liquid flow. Liquid is supplied via an apertured pipe. Toner may be absent from liquid supplied to the last trough so as to wash the sheet. Overflow liquid is collected in a tank 31 and recirculated by pumps 32. The sheet is held flat on electrode 34 by suction through openings 39. As the leading edge of a sheet passes an opening an associated pressuresensitive switch activates the next pump which remains active till the trailing edge passes. The arrangement prevents liquid seeping onto the back edge of the sheet. The sheet is dried by "electric wind" of a corona device 40, infra-red heaters 41 and a blower 42. The back of the sheet may be dried by a sheet or strips of porous material secured between the upper conveyors. In an alternative embodiment (Figs. 11-13 not shown) the sheets are not supported by a vacuum plate, and the upper surfaces of the troughs are curved to correspond with the natural curvature of the sheets. The switching of the pumps is controlled by a series of switch-operating cams on a shaft which is rotated when a microswitch detects the leading edge of the sheet.
Patent GB-1216462-A (GB)
Title: Fuel supply systems for internal combustion engines
Inventor: CLARK ROGER
IPC: F02M69/12
Filed: 1966-10-07
Abstract: 1,216,462. Spray carburetters. JOSEPH LUCAS (INDUSTRIES) Ltd. Jan. 3, 1968 [Oct. 7, 1966], No. 44897/66. Heading F1B. Fuel is supplied to one or more nozzles 14 in an intake manifold 10 with an air throttle valve 13 from a pump 15 through a throttle valve 21 operated, by a manifold air temperature responsive device 33. A spill passage 41, 42 upstream of the valve 21 contains a valve member 39, 40 operated by a manifold air-pressure capsule 43 and a capsule having an evacuated compartment 44 and a compartment 46 communicating with the engine exhaust system. A valve 30 in the supply passage to the nozzle 14 is operated by a diaphragm 29 subjected on opposite sides to the fuel pressures downstream of the valves 21 and 39, 40. The pressure downstream of the valve 21 is a function of engine speed, the centrifugal pump 15 being driven through gearing 16 by the engine. To provide excess fuel for starting the flow through the valve 21 may be increased by manually releasing the sleeve 25 which normally partially obstructs the valve aperture 24. The fuel flow to the nozzle 14 may be shut-off by manually closing the valve 30. The flow through the spill passage may be restricted by a fuel temperature responsive device 51 orafixed restriction. At starting fuel may be supplied from the reservoir 17 through the filter 18 by a gear pump 52 with a pressure-relief by-pass valve 54. The nozzle 14 is upstream of a turbo super-charger 11.
Patent GB-1494958-A (GB)
Title: Pocket plates for alkaline electric storage cells
IPC: H01M4/76
Filed: 1975-10-31
Abstract: 1494958 Connecting plates of an alkaline storage battery CHLORIDE GROUP Ltd 22 Oct 1976 [31 Oct 1975] 45358/75 Heading H1B Perforated, metal, tubular pockets 10 of an alkaline storage battery are connected at their ends by vertically extending, channel section bus-bars 11, and additional connections are provided by (a) making the channel of M-section (Fig. 2, not shown), (b) incorporating a rod in the channel (Fig. 3, not shown); (c) using additional conductors at a point between the ends of the pockets (Fig. 6, not shown) and (d) making the pockets in two separate lengths joined by channel sections (Fig. 5, not shown).
Patent GB-979699-A (GB)
Title: Manual control mechanism for a rim brake
IPC: B62L3/02
Filed: 1963-11-18
Abstract: 979,699. Brake levers. WEINMANN A.G. Nov. 18, 1963 [Nov. 21, 1962], No. 45443/63. Heading B7E. A Bowden cable sheet metal brake lever pivoted at 5 supports the tail of a leaf spring 13 provided with a stop 12 and a pin 14. In normal operation, as shown, the stop 12 in the limiting position abuts a portion 11 of the lever support 2, but when it is necessary to remove the cable, the pin 14 is pushed in to move the spring and stop inwardly and permit the lever itself to pivot and abut the portion 11 and thus further slacken the cable.
Patent GB-1202744-A (GB)
Title: Improvements in or relating to brake boosters
IPC: B60T13/563
Filed: 1967-10-06
Abstract: 1,202,744. Fluid pressure brakes. ROBERT BOSCH G.m.b.H. 6 Oct., 1967 [14 Oct., 1966], No. 45768/67. Headina F2F.  A brake booster for a motor vehicle comprises a housing 1 divided into two cylinders having respective pistons 10, 11 coupled together by a tube 13, the high pressure side of each piston 10, 11 being shaped to correspond with that of the adjacent cylinder end 53, 54 so as to minimize the minimum cylinder capacity, a vacuum source 12 being coupled to the low pressure side of each cylinder, air being admissible to the high pressure side under control of a valve 24 coaxial with the tube 13, the cross-sectional area of the passage 23 by which the air is admitted being substantially equal to that of the valve 24 in its fully open state. As described, three levers 42 carried by a pin 32 are loosely attached at 43 to piston 11; a disc 45, also attached to piston 11 being coupled to the power transmission rod 49 of a master cylinder. The inlet manifold of the engine is coupled at 12 to the low pressure side of the left hand cylinder and, via an annular space 9, to that of the right hand cylinder. The high pressure side of the two cylinders are coupled together via a passage 23 and radial corrugations 19 in piston 11. The pistons 10, 11 are welded to the tube 13. On depression of the brake pedal 36, a tube 20 is moved to the left, until the end of a tube 30 engages a member 25, interrupting the connection between the high and low pressure sides of the cylinders. Further depression of pedal 36 opens valve 24 which admits air via tubes 20 and passage 23 to the high pressure side of the pistons 10, 11, deflecting them to the left against the bias of spring 48, valve 24 closing when equilibrium is reached. The cylinder 3 may be located within cylinder 2 by radial ribs or, as shown, by a plurality of humps 7, 8.
Patent GB-1023031-A (GB)
Title: Method and apparatus for collecting and delivering rod-like tobacco articles
Inventor: RUDSZINAT WILLY
IPC: A24C5/354
Filed: 1961-12-21
Abstract: 1,023,031. Delivering cigarettes in orderly arrangement. K. KÍRBER. Nov. 2, 1962 [Dec. 21, 1961], No. 45799/61. Heading A2C. Spaced cigarettes on a conveyer belt are fed towards a stop so that they collect in a closely packed row, the upward movement of the cigarettes collecting behind the foremost cigarette resting against the stop being hindered, whilst the downward movement of the cigarettes depress the conveyer surface until the row of cigarettes rests on a stationary support surface. As shown a conveyer belt 1, moving in the direction of the arrow 24 over a support 2, feeds mutually spaced cigarettes Z1 under support rods 11 and 12. The foremost cigarette Z2 abuts against a stop or against the last cigarette Z1 of a previously collected row about to be removed for packing by a suction head 3. The following cigarettes Z3 abut against the cigarette Z2, press against the rods 11 and 12 and depress the conveyer 1 into the position shown in Fig. 3, the ends of the cigarettes resting on surfaces 20 and 21, so that the belt 1 runs with only a small amount of friction beneath the cigarettes. After the suction head 3 has lifted further to remove the first collected row from the belt 1, the cigarettes Z2, Z3 are fed forwards by the belt 1 to be taken up on the return of the head 3, and the following cigarettes Z1 art then collected to form another row.