baber/WOPTO huggingface dataset:
Patent GB-1136153-A (GB)
Title: Pulse peak time detecting circuit
IPC: H03K5/1532
Filed: 1966-10-24
Abstract: 1,136,153. Detecting signal peaks. HUGHES AIRCRAFT CO. 24 Oct., 1966 [24 Jan., 1966], No. 47499/66. Heading H3T. A circuit for detecting the time of occurrence of the maximum amplitude of an input signal comprises a differentiating circuit 14 feeding a transistor 22 acting as a threshold device. In Fig. 1 the transistor is biased to cut off by the voltage drop across diode 32. With an input e in  comprising half a cycle of a sine wave the voltage e d  across resistance 18 is a positive curve followed by a negative curve, with a zero crossing occurring approximately at the peak of the input signal. At this zero crossing the transistor conducts and the output e o  at terminal 12 is a rectangular pulse starting at the time of the zero crossing. In a modification, Fig. 2 (not shown), the emitter is earthed and the biasing circuit 28, 34 and 32 is connected to the end of resistance 18. The diode and transistor are connected so that temperature affects them equally and the circuit is insensitive to temperature variations.
Patent GB-1331763-A (GB)
Title: Ultrasonic transducer
IPC: B06B1/06
Filed: 1970-10-08
Abstract: 1331763 Piezo-electric transducers EASTMAN KODAK CO 8 Oct 1970 [13 Oct 1969] 47917/70 Heading H4J [Also in Division H2] An ultrasonic transducer comprising a pair of piezo-electric elements 23, 25 with an intermediate metal spacer 27 clamped between a pair of body members 11, 13 by a bolt 19 has ducts for cooling fluid comprising a central bore 29 in the bolt communicating, via the end of a threaded bore 21 in member 13, with an external longitudinal groove 31 in the bolt, the said groove extending into an annular space 33 between the bolt and the elements which provides access for the cooling fluid to radial passages formed by radial grooves 35, 37, 41 in the members 13, 27 and 11 respectively. The radial grooves alternatively may be formed in the elements 23, 25.
Patent GB-1441119-A (GB)
Title: Zoom lens
IPC: G02B15/173
Filed: 1973-10-16
Abstract: 1441119 Zoom lens K VOCKENHUBER and R HAUSER 16 Oct 1973 [16 Oct 1972]  48118/73 Heading G2J In a zoom lens having a supplementary lens I, II of variable magnification and a prime lens III, IV of fixed focal length f III , the lens I, II comprises a positive element or combination followed by a negative element or combination which are axially displaceable, and the lens III, IV comprises in order a biconvex lens L7, a cemented lens element L8, L9, a biconcave lens L10 and two biconvex lenses L11, L12, no radius in the lens III, IV being less than 0À6 times f III , and the refractive indices of all biconvex lenses in III, IV being less than 1À72. Optical data are given.
Patent GB-1177088-A (GB)
Title: Improvements in and relating to Elastomeric Polyurethane Compositions
Inventor: POUNDER DONALD WHITWORTH
IPC: C08K7/00
Filed: 1966-10-29
Abstract: 1,177,088. Elastomeric polyurethane compositions. DUNLOP CO. Ltd. 24 Oct., 1967 [29 Oct., 1966], No. 48588/66. Heading C3R. An elastomeric composition of reduced permeability to liquids comprises an elastomeric polyurethane and a laminar filler (i.e. a filler comprising particles each having a plate-like shape). The amount of filler used is suitably 10 to 40% by volume of the total volume of the composition and the particles of the filler suitably have a minimum ratio of mean diameter to mean thickness of 10:1. Preferred laminar fillers are aluminium flake, mica platelets, brass flake, graphite, flakes of nylon or poly-(ethylene terephthalate) flakes. Sheets of the composition are formed by techniques such as calendering, spreading or moulding. The elastomeric polyurethane is suitably a commercially available polyurethane rubber which may be cured with an isocyanate dimer containing two free terminal isocyanate groups.
Patent GB-1112655-A (GB)
Title: Improvements in or relating to devices for use in teaching number systems
IPC: G09B19/02
Filed: 1966-11-14
Abstract: 1,112,655. Counters; educational appliances. A. J. L. CLARK. 14 Nov., 1966 [17 Nov., 1965], No. 48946/65. Headings G4D and G5G. Apparatus for teaching arithmetic includes a plurality of denominational units for indicating a multi-denominational number each unit including an indicator having the digits of the denominational order serially arranged, means for entering a number to each unit by moving the indicator step-by-step in an additive or subtractive direction to bring the digits to a viewing position, means for bringing a carry symbol to the or another viewing position whenever a denomination is filled or emptied, and the indicators being positioned or there being provided means such that when a carry symbol appears in a given denomination the movement of the next higher denomination by one step removes the carry symbol from view in the given denomination. In Figs. 1 and 3 is shown apparatus for teaching binary arithmetic wherein each unit comprises a cylinder carrying six symbols 01#01#, freely mounted on a shaft 4 in a casing 3, the symbols being viewed through apertures 6. Each cylinder includes six projections 5 associated with the # or carry symbols, and the cylinders are individually rotated by the projections 5 to add or subtract digits. When a carry symbol appears in an aperture a projection 7 is accessible to a student and is positioned adjacent an accessible projection 5 of the next higher cylinder so that the two cylinders can be simultaneously moved one step to bring the next symbol on each cylinder to view. Apparatus for teaching decimal arithmetic (Fig. 5, not shown), includes for each denomination a first indicator carrying symbols 0-9, a second indicator carrying a# or carry symbol, and a manually rotatable actuating cylinder carrying symbols 0-9, 0-9, 0-9, 0-9 and four cams situated so that when the denomination is filled or emptied the carry symbol is brought to view. Movement of the next higher cylinder one step mechanically removes the carry symbol from view.
Patent GB-950407-A (GB)
Title: Method and apparatus for tempering glass
Inventor: CARSON FRANK JACOB
IPC: C03B29/08
Filed: 1962-12-29
Abstract: <PICT:0950407/C1/1>   In tempering flat glass sheets by passing them in horizontal position through a heating zone and then through a cooling zone, the sheets are moved at constant speed through the first part of the heating zone where they are raised to the annealing temperature, are then speeded up as they pass through the remainder of the heating zone and into the cooling zone, and are then decelerated for passage through the cooling zone.  The plates A are fed into the furnace 18 on a roller conveyer 29.  When a sheet reaches the gap 59 between the conveyer 29 and another conveyer 34 moving at the same speed, a photo-electric cell 57 operates a timing device whereby, after a sufficient interval to permit the sheet to pass completely on to the second conveyer, the conveyer is speeded up to the speed of a third conveyer 40 travelling about six times faster than the conveyer 29. When the sheet is fully supported on the conveyer 40, the timing device acts to return the conveyer 34 to the speed of the conveyer 29. The last roller of the conveyer 40 is outside the furnace in the cooling zone 14 where cooling gas from reservoirs 24 is blown on to each side of the glass.  The sheet passes on to a conveyer 46 which travels at the speed of the conveyer 40 until the leading edge of the sheet is scanned by a photo-electric cell 61 which causes deceleration of the conveyer to the speed of a final conveyer 52 which travels about 30% faster than the conveyer 29 and carries the sheet through the cooling zone.  A further photo-electric cell 62 restores the speed of the conveyer 51 to that of the conveyer 40.
Patent GB-1132149-A (GB)
Title: An apparatus for the transmission and recording of characters
IPC: H04L13/18
Filed: 1966-11-02
Abstract: 1,132,149. Recording characters. M. GRUNDIG, [trading as GRUNDIG E.M.V. ELEKTRO - MECHANISCHE VERSUCHSANSTALT]. 2 Nov., 1966 [6 Nov., 1965], No. 49108/66. Headings B6F and B6W. Apparatus for the optical transmission and recording of characters comprises a light- and/or heat-sensitive recording material, movable stepwise in a direction transverse to the lines of characters, after each line has been completed, a rotatable type carrier, a source means which is actuated instantaneously when a preselected character is in a position to be recorded, and from which rays issue to project the characters on to the recording material by way of a pivotable mirror which is pivoted between light pulses to provide character spacing. In a preferred embodiment, Figs. 1 and 2, a U-shaped flash tube 3 which produces a flash of light in each arm 3a and 3b is disposed behind a rotatable character carrying disc 1. Light passing through a character in disc 1 passes through an adjustable lens 5a if the light flash emanates from arm 3a of the flash tube or through an adjustable lens 5b if it emanates from arm 3b. The resulting bundles of rays A and B are reflected respectively from two plane mirrors 6a and 6b on to further mirrors 7a and 7b which are pivotally mounted at 8a and 8b in a holding device 9. Mirrors 7a and 7b are pivoted about their axes by eccentrics 14a and 14b which bear against rollers 13a and 13b attached to mirror bearing arms 11a and 11b. Eccentrics 13 are rotated by common driven shaft 15. Pivotal movement of a mirror 76 about its axis causes successive image carrying flashes striking the mirror to be reflected so as to form a line of characters on paper 19. At the end of a line eccentric 14b allows mirror 7b to pivot back to its initial position under the action of spring 10b. During this return movement a rotatable shutter 17 cuts off light to mirror 7b and simultaneously allows light to reach mirror 7a which begins its character forming sweep under the control of eccentric 14a. The mirrors 7a and 7b alternately form a single line of characters, the unused mirror at any time being blanked off from its respective light beam by shutter 17 (Fig. 4). Paper 19 moves on by one line space between successive character-forming mirror sweeps. Paper 19 may run through a guide 20 to give it a curvature centred on a point midway between the axes of rotation of mirrors 7a and 7b. Lenses 5a and 5b may be displaced to give enlarged or reduced characters and lenses of different focal length may be used.
Patent GB-1170647-A (GB)
Title: Catalyst Activation Process
Inventor: MACLAREN DONALD DANLEY
IPC: B01J29/90
Filed: 1967-10-30
Abstract: 1,170,647. Activating cracking catalysts. ESSO RESEARCH & ENG. CO. 30 Oct., 1967, No. 49131/67. Heading B1E. Cracking catalysts comprising a crystalline aluminosilicate zeolite supporting a Pt group metal are activated by contacting the catalyst at temperatures up to 300‹F. with a gas stream containing less than 10 ppm. of water comprising a major proportion of hydrogen until less than 50 ppm. water is detected in the stream after it has contacted the catalyst and subsequently contacting the catalyst, at elevated pressure and a temperature above 300‹F. with an undried gas stream comprising a major proportion of hydrogen for 1-12 hours.
Patent GB-1085230-A (GB)
Title: Improvements in or relating to the control of nuclear reactors
Inventor: CHALLENDER RONALD SCOTT
IPC: G21C7/08
Filed: 1963-12-16
Abstract: 1,085,230 Controlling reactors. UNITED KINGDOM ATOMIC ENERGY AUTHORITY. Nov. 5, 1964 [Dec. 16, 1963], No. 49661/63. Heading G6C. A marine nuclear reactor utilizes a small number of control rods capable of being withdrawn at a controlled rate, and a larger number of shutdown rods; the characteristics and positions of the control and shutdown rods are such that the withdrawal of a control rod produces a neutron propagation change which is not less than that produced by the withdrawal of a shutdown rod. The control rod and shutdown rod drives are interlocked so that a shutdown rod cannot be removed from the core until a control rod has been fully withdrawn from the core and then reinserted. Thus, when the reactor is to be started up from a folly shutdown condition, it is impossible for criticality to be achieved during the removal of a shutdown rod. Provision is made so that, at any stage in reactor start-up or operation, emergency shutdown can be effected. The shutdown rods are held out of the core by hydraulic pressure against the action of compression springs.
Patent GB-1076039-A (GB)
Title: Improvements in or relating to switches
Inventor: GRAY JOHN ARTHUR STANELY
IPC: H01H7/03
Filed: 1964-12-08
Abstract: 1,076,039. Retractive switches. AIRFIX PRODUCTS Ltd. March 8, 1966 [Dec. 8, 1964], No. 49998/64. Heading H2B. [Also in Division F2] A delayed-action switch for use in starting on model racing car tracks, comprises a pair of reeds 18, Fig. 2, normally held in contact by a counterweight 22, 26 pivoted at 23 and which is held away from the reeds for a predetermined time by an arm 27 on a push button 1 having a pneumatically delayed, spring return. A fixed piston (30), Fig. 4 (not shown), of the push button carries a resilient head (29) slidable within the button 1 to provide damping by leakage of air to the interior of the button. The head (29) may have adjustable end play at screw (43) for varying the delay or may have an adjustable leakage orifice, Fig. 5 (not shown). An indicator flag (36), Fig. 1 (not shown), may be attached to the counterweight pivot.
Patent GB-1358288-A (GB)
Title: Apparatus for treating materials of various kinds
IPC: B01F25/60
Filed: 1971-10-27
Abstract: 1358288 Comminuting apparatus; homogenizing G NEIDL 27 Oct 1971 50002/71 Headings B1C and B2A [Also in Division Fl] Apparatus, particularly for comminuting and homogenizing, and having a pumping action, comprising a cylindrical housing 1, Fig. 1, having an axial inlet 14 and a radial or tangential outlet and a rotor which comprises a pair of plates 5 symmetrically mounted and inclined outwardly with respect to the axis of a shaft 3, plates meeting to form an apex edge 9 facing the inlet 14, the rotor further comprising apertures 12 of varying shapes, which are open towards the central region 16 of the plates. The plates have teeth 7, as in Fig. 2, which engage in grooves 8 arranged on the inner wall of the housing. In a second embodiment the plates 5 are carried, Fig. 2, and the housing may be conical, Fig. 3 (not shown). The apex edge may have teeth 39, Fig. 5, which cooperate with annular grooves 41 at the inner surface of the inlet cover 42. The rear edges 43 may also have teeth. The rotor may be arranged in a perforated housing 56, Fig. 8, in a jacket 57. Finely comminuted material is thus discharged at 68, while the uncomminuted material is discharged at 62.
Patent GB-1097666-A (GB)
Title: Device for non-contact measurement of speed of moving strip of electrically conductive material
Inventor: PIVOVAROV LEV VASILIEVICH
IPC: G01P3/50
Filed: 1966-11-08
Abstract: 1,097,666. Linear generators. UKRAINSKY ZAOCHNY POLITEKHNICHESKY INSTITUT. Nov. 8, 1966, No. 50006/66. Heading H2A. [Also in Division G1] The speed of a strip of electrically conductive material 1, e.g. from a rolling mill, is measured by mounting a polyphase linear stator 3 adjacent the strip, automatically controlling the frequency of the A.C. supply to the stator 3 until the speed of the travelling magnetic field set up by the stator equals the speed of the strip, and measuring the frequency of this supply. The variable frequency A.C. supply is obtained from an alternator 5 driven by a variable speed motor 7 the supply to which is controlled by a phase-sensitive detector 11 to which is applied the opposed outputs of pick-up coils 9, 10. These are mounted on either side of the strip 1 and are adjusted so that their outputs are equal and opposite in the absence of the strip, which means that they are also equal and opposite when the speeds of the strip and the field are in synchronism. Under these conditions a relay 17 connects a frequency meter 18 to the supply.
Patent GB-1213975-A (GB)
Title: Improvements in or relating to oil-fired burners
Inventor: BULLOCK GEOFFREY JAMES
IPC: F23D11/08
Filed: 1966-11-10
Abstract: 1,213,975. Controlling burners. LANDON KINGSWAY Ltd., and HENRY WILSON & CO. Ltd. 1 Feb. 1968 [10 Nov., 1986], No. 50353/66. Heading F4T. A control system for an oil-fired burner having a flame rim against which fuel oil impinges, the rim being heated prior to the oil impinging on it, comprises switches Sl ... S6 operated by a timing motor TM and rotary cam-shaft so that the igniter IGN is energized at an instant which is not later than that at which the rim heater FRH is energized. The system also includes a timing clock TC, a thermostat TH and a switch FD controlled by a flame detector responsive to hot flue gases. A solenoid float control SOL initiates the supply of fuel and the centrifugal atomizer of the burner is driven by a burner motor BM. If a flame is not established after 220 seconds the system locks out and can only be re-started by means of a reset button RES.
Patent GB-1318178-A (GB)
Title: High power heating devices using liquid heat transfer media
IPC: F23D11/24
Filed: 1971-10-29
Abstract: 1318178 Combustion air blowers; vehicle heaters W BAIER W BAIER L SCHOBER and E SCHLUMPRECHT 29 Oct 1971 [14 Jan 1971] 50382/71 Heading F4W In a heater, particularly for vehicles, of the type in which a tubular combustion chamber 7 gives up heat to a liquid heat transfer medium in a jacket 8, 9, the combustion chamber is coaxial with the combustion air blower 2, and the drive motor 1 for the blower and a fuel pump 12 is arranged on the outlet side of the blower 2. Air is drawn in through a suction chamber 3 by the multi-stage blower 2, and combustion gases exit at 10. The fuel pump 12 is mounted on the suction chamber.
Patent GB-1331447-A (GB)
Title: Sealing arrangement including a springloaded sealing ring
IPC: F16J15/32
Filed: 1970-10-23
Abstract: 1331447 Injection moulding sealing rings CASCADE CORP 23 Oct 1970 [11 May 1970] 50545/70 Heading B5A [Also in Division F2] An elastomeric sealing ring comprising a base 20 and axially extending inner and outer skirts 16 and 18 having sealing edges 37 and 30 thereon (see also Division F2) is moulded so that the mould parting lines 35 are spaced from the edges 30, 37 in a mould comprising a base portion 82, a centre portion 83 and a surrounding portion 84. When moulding is completed, the portion 82 is removed from the ring and the portions 83 and 84 are moved in opposite directions as indicated by the arrows to release portion 83; finally the ring 12 is removed from portion 83.
Patent GB-995815-A (GB)
Title: An improved rising hinge
Inventor: DUCKETT RONALD ANTHONY
IPC: E05F1/06
Filed: 1963-12-20
Abstract: 995,815. Rising hinges. LONDON PRESSED HINGE CO. Ltd. May 21, 1964 [Dec. 20, 1963], No. 50560/63. Heading E2F. A rising hinge for either a left or right-hand door comprises two knuckled hinge plates A, B pivotably connected by a hinge pin E with knuckle C of plate A having a downwardly extending tongue 2 with its edges forming two helices 3, 4 of opposite hand and equal pitch, terminating at a transverse end edge 5 and mating with corresponding helical edges 7, 8, formed on knuckle D of plate B. Provision is made for the door to be rotated through 180 degrees by extending the two helical edges 3, 4 to a point and correspondingly modifying the mating edges 7, 8. The screw holes 15 of both plates are countersunk at both faces and the plates may take other forms, Figs. 8, 9 (not shown).
Patent GB-1483242-A (GB)
Title: Moulding
IPC: B22F3/035
Filed: 1974-11-22
Abstract: 1483242 Mould release GENERAL ELECTRIC CO 22 Nov 1974 [27 Nov 1973] 50768/74 Heading B5A [Also in Division-C7] The release from the mould of articles moulded from silicon and/or silicon carbide is facilitated by coating the mould with boron nitride powder e.g. by brushing on dry, -by spraying in an ammonia and water vehicle, by dipping, or electrolytically. Colloidal graphite, or graphite or carbon filaments are placed in an alumina or graphite mould comprising four parts 14-17 fitted into holders 12, 13. The assembly is placed vertically in a furnace with silicon powder in the space in the holder 13 above the mould cavities. The furnace contains an inert atmosphere or vacuum and is heated to melt the silicon which runs down between filaments in the mould cavities and converts them to silicon carbide to produce four bars 22 of silicon reinforced with silicon carbide filaments.
Patent GB-1068509-A (GB)
Title: Novel salt of 3-phenyl-5-ª-diethylaminoethyl-1,2,4-oxadiazole
IPC: C07D271/06
Filed: 1965-12-02
Abstract: The invention comprises 3-phenyl-5-b -di-ethylaminoethyl -1,2,4-oxadiazole benzilate, and a process for its preparation comprising reacting 3 - phenyl - 5 - b  - diethylaminoethyl-1,2,4-oxadiazole with benzilic acid in an organic solvent, e.g. a mixture of benzene and ethanol.  3 - Phenyl - 5 - b - diethylaminoethyl - 1,2,4-oxadiazole is prepared by reacting benzamidoxime with b -chloropropionyl chloride to form O - (b  - chloropropionyl) - benzamidoxime, reacting this compound with diethylamine to form O - (b  - diethylaminopropionyl) - benzamidoxime and refluxing a suspension of this compound in benzene. Pharmaceutical compositions having anti-inflammatory, analgesic, antispasmodic and local-anaesthetic activity, for oral, rectal, parenteral or topical administration, comprise the salt of the invention together with a pharmaceutical carrier or excipient. The compositions may be in the form of an eye wash or ear drops.
Patent GB-1243279-A (GB)
Title: Improvements in and relating to targets for x-ray tubes
IPC: H01J35/08
Filed: 1969-10-21
Abstract: 1,243,279. Tungsten base alloy; powder metallurgy; coating by spraying. METALLWERK PLANSEE A.G. & CO. K.G. Oct. 21, 1969 [Dec. 2, 1968], No.51456/69. Headings C7A, C7D and C7F. A target for X-ray tubes, consists, at least at the electron impact area, of an alloy comprising:- Pt 0À05-5% Ir 0-2% Os 0-5% and Re 0-10%, the balance being tungsten. The target may be made by powder metallurgy from powders which have been produced by simultaneous reduction. The example refers to forming a layer of the above composition as a powder on Mo powder in a die, compacting at 4 tons/cm<SP>2</SP> and then sintering in vacuo or in a neutral atmosphere at over 2000‹C. Spraying of the alloy on to a Mo or graphite substrate, preferably with a Re or Os interlayer in the latter case, is referred to.
Patent GB-1521397-A (GB)
Title: Battery heat shield and windshield washer reservoir
IPC: H01M10/613
Filed: 1976-12-09
Abstract: 1521397 Windscreen washers CHRYSLER CORP 9 Dec 1976 51503/76 Heading A4F [Also in Division H 1] A combined storage battery heat shield and windscreen washer reservoir has a body portion 10 overlying the surface of the storage battery, the body portion comprising a plurality of connected wall members at least one of which has a chamber for storing a windscreen washing fluid. A fill port 32 in the cover 12 and an outlet 34 are provided for fluid addition and withdrawal to the reservoirs. The body portion may be made of talc-filled polypropylene with the reservoir preferably having a minimum capacity of 50 fl ozs. An insulating layer of rigid cellular urethane foam may be used as additional heat shielding on those surfaces where there is no reservoir.