baber/WOPTO huggingface dataset:
Patent GB-1207227-A (GB)
Title: Microwave drying method and apparatus
IPC: H05B6/78
Filed: 1968-10-09
Abstract: 1,207,227. Drying webs or sheets. BECHTEL INTERNATIONAL CORP. 9 Oct., 1968 [10 Oct., 1967], No. 47930/68. Heading F4G. [Also in Division H5] A method of drying a web or sheet comprises applying thereto microwave energy and high speed (i.e. at least 10,000<SP>1</SP>/min.) jets of gas (e.g. air, nitrogen or superheated steam) which carry off moisture liberated by the microwave energy. Gas is passed through the conductor(s) emitting microwave energy to prevent condensation of moisture therein. In the embodiment shown, web 10 is subjected to microwave energy as it passes through sections of a meandering wave-guide 40 and to high speed gas jets from nozzle openings 62, which gas removes moisture from the boundary of the web. Pressurized heated gas is supplied by a fan to openings 62 via inlet plenums 16 and the moisture-carrying gas is exhaustedthrough outlet plenums 20 to a suction fan for re-circulation to the pressure fan. To prevent moisture condensation in the waveguide 40 gas is passed in through openings 68. The inlet end of one half of the waveguide 40 is connected via a line 38 to a microwave generator, and the outlet end has a dummy load e.g. a water-filled tube 50. The inlet and outlet ends of the other half of the waveguide are provided with adjustable impedance matching stubs 44, 52. In another embodiment (Fig. 9, not shown) in which the web is irradiated from one side only, the waveguide (90) is provided therein with strips or fingers (92). There may be more than one microwave and gas applying unit positioned across and along the path of the web.
Patent GB-983092-A (GB)
Title: Internal combustion engine ignition systems
IPC: F02P3/05
Filed: 1963-12-05
Abstract: 983,092. Ignition systems. GENERAL MOTORS CORPORATION. Dec. 5, 1963 [Dec. 6, 1962], No. 48071/63. Heading F1B A voltage suppressor network is connected with the primary winding of the ignition coil. The initial rate of build up of current in the primary winding is reduced. As shown the network includes a parallel connected resistor 106 and capacitor 100 which is connected with the primary winding through a diode 98. A transistor 32 is connected to control current flow in the primary winding and a control device actuated in synchronism with the engine is adapted to control the conduction of the transistor. The control device shown comprises a voltage generator 70. The invention is applicable to ignition systems other than the type shown.
Patent GB-1427828-A (GB)
Title: Automatic cigarette lighter
IPC: F23Q7/00
Filed: 1973-10-17
Abstract: 1427828 Boxes for cigarettes J BREZINA 17 Oct 1973 [22 Nov 1972] 48343/73 Heading B8P [Also in Division F4] A lighter for mounting in a motor vehicle comprises a heating element 22 and a fan 25 which is operatively connected to a motor 28 controlled by switch means 20, and a storage tray 17 for cigarettes, there being provided manually operable means for actuating means to move a cigarette to one side of the tray and for holding the cigarette with an end adjacent the heating element, and means operable by the rotor to pivot the cigarette so that the unlit end is presented to the user and subsequently to return the switch means to the off-position. Mounted on the base of the tray is a plurality of dividers 35 between which the cigarettes are located and at each end of which is provided a unit 39<SP>1</SP> having fingers 40 and rotatable to advance the cigarettes towards the front of the tray. A thumb piece 50 is slidable across the tray to pivot a plate 48 about pin 49 thereby moving a slide plate 55 by means of a pin 53 attached thereto and movable in a slot in plate 48. Pivotal plates 64 are attached by springs 66 to plate 55 and each have a slot engaged by a prong 41 on a respective unit 39<SP>1</SP> whereby movement of the thumb piece causes rotation of units 39<SP>1</SP>. The plate 55 and thumbpiece are returned by springs 60. An end of the cigarette rides up a ramp (43, Fig. 9) and is held between ramp (43) and a further jaw (45). The cigarette is moved laterally towards the igniter by a spring- loaded plate (69) mounted adjacent the thumbpiece. The switch means is operated by a camming edge 81 on plate 48 which engages an actuator 85 engageable with a worm 28 driven by the motor and connected to rods 83 which are thereby moved in the direction of arrow 87, the rods actuating the switch to the off-position at the end of their travel. During movement of the rods a projection 90 secured thereto pivots the cigarette through 90 degrees.
Patent GB-1316298-A (GB)
Title: Sintered steel-bonded hard metal alloy and a method of preparing the same
IPC: C22C38/00
Filed: 1970-10-13
Abstract: 1316298 Sintered carbide composition DEUTSCHE EDELSTAHLWERKE AG 13 Oct 1970 [24 Oct 1969] 48636/70 Headings C7A and C7D Sintered composition comprises 10-75% TiC (of which up to 50% can be replaced by one or more other metal carbides) bonded by a steel matrix which contains 0À8-3À9% free graphite (based on the overall weight of the composition). A preferred composition comprises:- the balance, apart from impurities and incidental elements, being iron. The compositions may be made by heating pressings of the powder mixture at 80-100C/hr up to a sintering temperature of 1000 -1200 C, holding at temperature for at least 4 hours, cooling to 750-850 C at 30-50C/hr and then cooling to room temperature at 100-200C per hour. Various annealing treatments for the composites are disclosed between 550 C and 925 C or they may be oil quenched from 870-900 C and drawn at 200-240 C.
Patent GB-1195983-A (GB)
Title: Duty Cycle Control Circuit.
IPC: G05B19/07
Filed: 1967-10-30
Abstract: 1,195,983. Pulse circuits. RANK XEROX Ltd. 30 Oct., 1967 [1 Nov., 1966], No. 49173/67. Heading H3P. In a circuit for controlling the duty cycle of a load 40, e.g. in motor control apparatus, load 40 normally receives regular pulses H through AND gate 34 and OR gate 38, but an extended pulse G may be passed to load 40 through AND gate 36 and gate 38 by momentarily closing push-button 22. With button 22 open, then as bi-stable circuit 12 changes from one to the other state to provide a high output A, the rise in output A is fed to lead edge delay circuit 26 to produce, after a delay of approximately 10 seconds, a high pulse D. Whilst output A is high, AND gate 14 is inhibited by the negative potential at 20 applied to its other input, and the consequent low output B combines with a low output F of bi-stable circuit 32 (this state of circuit 32 being ensured by a high input at R from A) to pass a high pulse H through gate 34 and hence gate 38 to load 40. When the pulse D is produced, after the 10-second delay, and applied to input 28, it combines with a pulse from high-frequency clock pulse source 10 to switch bi-stable circuit 12, hence switching output A to a low value and activating gate 14 to provide a high output B which inhibits gate 34 to terminate pulse H. The lead edge of the rise in output B is passed to delay circuit 24, which produces, after a delay of approximately 50 seconds, an output C which is applied, in combination with a clock pulse from source 10, to bi-stable unit 12 through AND gate 30, thus switching circuit 12 to provide a high output A. The cycle is thus repeated. When it is desired to extend the pulse applied to load 40, button 22 is momentarily closed, thus triggering bi-stable circuit 12 to provide a high output A, and also triggering bi-stable circuit 32 to provide a low output at E. The high output A inhibits gate 14, producing a low output B. This condition remains until, after release of button 22, the pulse D delayed by circuit 26 after the rise at A, triggers circuit 12 to provide a low output A and hence high output B. Low output A then combines with low output E to provide a pulse G through gates 36 and 38 to load 40. The rise in output B is passed to circuit 24 which, after its delay, supplies a pulse C to trigger circuit 12 to provide a high output A, resetting circuit 32 and terminating pulse G. The circuit then continues to operate normally, providing regular pulses H to load 40, until button 22 is again closed to alter the duty cycle. Delay circuits 24, 26 may have adjustable delays to vary the duty cycle control.
Patent GB-1138883-A (GB)
Title: A method for preparing an -‡-aminoaliphaticcarboxylic acid from the corresponding -‡-chlorocarboxylic acid and ammonia
IPC: C07C227/08
Filed: 1966-11-03
Abstract: 1,138,883. Preparation of α-amino aliphatic carboxylic acids. KONINKLIJKE NEDERLANDSCHE ZOUTINDUSTRIE N.V. 3 Nov., 1966 [30 Nov., 1965], No. 49292/66. Heading C2C. A process for preparing an α-amino carboxylic acid from the corresponding α-chloro carboxylic acid or an ammonium or alkali metal salt thereof and ammonia in an aqueous medium in the presence of hexamethylene tetramine, comprises adding to the aqueous medium in the course of the reaction the α-chlorocarboxylic acid, and/or the ammonium salt thereof, and/or an alkali metal salt thereof, ammonia, ammonium hydroxide and/or alkali metal hydroxide in such relative amounts that the molar sum of the reaction components added together is equivalent to substantially equal molar quantities of the α-chlorocarboxylic acid, ammonia and alkali metal hydroxide, said aqueous hexamethylene tetramine-containing medium also containing ammonium ions in a molar amount of at least one tenth of the molar amount of the α-chlorocarboxylic acid or salt thereof to be converted. In a preferred embodiment, one quarter to one half of the α-chlorocarboxylic acid to be converted is reacted with ammonia in a molar ratio of 1: 2, a further addition is made of one half of the acid and alkali metal hydroxide, also in the molar ratio of 1: 2, and finally the remaining acid and ammonia, in a molar ratio of 1: 2, are added. The α-amino carboxylic acid can be separated by crystallization, e.g. as an equimolecular mixture with alkali metal chloride which is later separated.
Patent GB-1485280-A (GB)
Title: Atomizer
IPC: B05B11/00
Filed: 1974-11-14
Abstract: 1485280 Reciprocating pumps YOSHINO KOGYOSHO CO Ltd 14 Nov 1974 [15 Nov 1973 25 Dec 1973 29 March 1974 1 May 1974] 49330/74 Heading F1A An atomizer suitable for atomizing perfume or cosmetic preparations, comprises a nozzle 23 mounted in an atomizer head 20 which is vertically movable within a guide tube 4 threaded on to the neck 2 of a container 1 for liquid to be atomized, liquid to be atomized being drawn up through a one-way valve 9 into a pressure chamber defined by upper and lower cylinders 21, 7 respectively on a pressure reduction in said chamber effected by upward movement of head 20 from a depressed condition, the liquid in said chamber then being pressurized on depressing head 20 together with a slidable member 13, providing communication between cylinders 7, 21 and urged upwardly by a spring 19 to normally close a passage 22 in the head 20 leading to the nozzle, until the pressure forces the member 13 down to open passage 22 for liquid flow therethrough, as a result of the differential forces of the liquid pressure acting on the upper portion 16 of member 13, which is of larger effective area, and the lower portion 14 thereof, which is of smaller effective area. Valve 9 may be of ball type or it may comprise a valve-member formed on the lower end of an elongated stem (30) Fig. 6 (not shown), said stem being slidable into the bore of the sliding member on depressing the atomizer head. Thus the volume of the larger cylinder and the bore of the slidable member is decreased substantially during the depressing stroke so that the quantity of air which might otherwise be left therein to prevent efficient suction of liquid is reduced. Modifications providing grooves in the lower part of the lower cylinder for the exit of such air are disclosed. The sliding member may be made of an upper and a lower part fitted into each other. Further, a tube (27) Fig. 4 (not shown) may depend from the atomizer head in communication at its upper portion with nozzle (23) and carrying a piston (16a) and at its lower end which is slidably received in an upper portion, (21b) of member (13), a valve-member (18) supported in said portion (21b) closing said tube (27) except when member (13) is moved down separately from the atomizer head to allow liquid passage to the nozzle.
Patent GB-1320243-A (GB)
Title: Character reader with handprint capability
IPC: G06V30/182
Filed: 1970-10-20
Abstract: 1320243 Character recognition RECOGNITION EQUIPMENT Inc 20 Oct 1970 [20 Oct 1969] 49740/70 Heading G4R A character is recognized using an array of sensors, vector boundary-direction signals being derived from black and white signals and used to derive quadrature-limited, curvature feature, binary signals which are stored and compared with character masks. Signals from a matrix of photocells seeing a moving character are quantized to black/white by comparing each with the average of the signals from surrounding photocells followed by thresholding, the results being stored in a shift matrix. When the character is in the matrix, the matrix is successively shifted up, left and right so that for each of nine overlapping zones of the character in turn, each bit in turn can be sensed together with surrounding bits by logic circuitry to detect elementary boundary directions (perhaps more than one at a given bit position). A white border is simulated in this logic circuitry to isolate top data from bottom and left from right. Sequences of three and five directions are sensed by further logic circuitry, which is also controlled by a vector sequencer responsive to the elementary boundary directions present to ensure that, in the event of there being more than one at a given position, all are dealt with in turn. This further logic circuitry feeds feature accumulators which use logic to detect the following features: convex and concave curves in four quadrants with a yes/no sharpness indication for each quadrant, horizontal, vertical, right sloping and left sloping straight lines, stops and nodes. Bidirectional counters with weighted inputs are also use in detecting sharpness, and counters are also used in detecting stops, nodes and straight lines. The resulting feature signals are then stored, and when the signals for all the zones have arrived resistor masks combine the features to identify the character, masks being provided for features which-should be present and features which should be absent for respective characters, there being a plurality of each sort of mask for each possible character. Resulting voltages relating to respective possible characters are amplified, except that voltages below a given level are replaced by a very low voltage, an upper clipping level also being imposed. The largest resulting voltage identifies the character, being detected by a null detector fed with a staircase voltage triggered via a threshold detector. Operation of the system for a given input character is triggered when the leading boundary of a preprinted box surrounding the character is detected, being controlled by a counter, control being passed to another counter at a certain point so that the first counter can be used with the next character, thus permitting overlap.
Patent GB-1141877-A (GB)
Title: Reservoir for hydraulic master cylinder
Inventor: MOYES GORDON HASWELL
IPC: F16L41/14
Filed: 1966-11-08
Abstract: 1,141,877. Hydraulic reservoirs. GIRLING Ltd. 1 Nov., 1967 [8 Nov., 1966], No. 49864/66. Addition to 952,505. Headings F2E and F2F. A nylon or other plastic reservoir is connected to the master cylinder of an hydraulic system (e.g. for operating brakes or clutch) by a hollow rigid sleeve or bush 15 in the form of a bolt which clamps the bottom 19 of the reservoir to the master cylinder 31, a rubber or other resilient washer 26 being interposed between two surfaces at least one of which is inclined to the normal to the axis, so that the axial dimension of the washer diminishes progressively in an outward direction when the parts are clamped together. Preferably the washer is of uniform thickness when free, so that the outer part is compressed more than the inner part. An annular spacer 25 abuts a shoulder on the reservoir 19 to limit the amount of compression of the washer, and its radial spread is limited by a shrouding 31. A washer 21 under the bolt head supports the three resilient legs 29 of a disc 28 carrying a deflector 27 to stop particles from falling into the master cylinder when the cap 30 is removed. The lower surface of the compressed washer may slope as well as or instead of the upper surface. The reservoir may be of polythene.
Patent GB-1032577-A (GB)
Title: Apparatus for slitting nut skins
IPC: A23N5/00
Filed: 1963-12-18
Abstract: 1,032,577. Slitting nut skins. J. W. GARDNER. Dec. 18, 1963 [Jan. 16, 1963], No. 49898/63. Heading A2Q. In a machine, of the type described in Specification 733,237, for slitting the skins of shelled nuts, such as peanuts, the nuts are fed, one by one, by a vibrating feeder 19, along a tray 40, Fig. 1, into the gap or gaps between one or more pairs of counterrotating wheels 10, 12 and their skins are slit longitudinally, from end to end along both sides, by knife blades 20, 22, Fig. 5, as the nuts are carried through the gap or gaps. The nuts are then discharged, down a shoot 24, into a hopper 26, from which they proceed for treatment to remove the skins and blanch the nuts. Each wheel 10 of a pair is located above and slightly forward of its associated wheel 12. The wheels 10 and 12 of each pair are geared together by tapering sprocket gears (not shown), the lower of which is driven, by a belt 16, from a shaft 18 located below the structure 14 supporting the wheels. Each wheel 10 comprises a pair of annular metal plates 28 having inwardly bevelled edges 30, between which plates a resilient annulus 32, e.g. of sponge rubber, having a diameter 'slightly larger than the inner diameter of the plates, is sandwiched. Each wheel 12 is preferably made of rigid material, e.g. metal, and has a peripheral V-shaped groove 34 provided with friction teeth 36 and with one or more radially projecting abutments 38, e.g. two diametral abutments, spanning the groove, so as to liberate any nuts which may be jammed between the blades. The nuts fall, from the tray 40, into each groove 34, are oriented longitudinally therein, are then gripped by the resilient annulus 32 of the corresponding wheel 10 and are carried, in the nip or gap between the wheels 10 and 12, into engagement with the blades 20, 22. The wheel or wheels 10 is or are mounted in a block 42, Fig. 2, slidably engaging the upper forward face of the structure 14 by means of a spline 44. A bolt 48 passes through an overhanging part 46 of the structure 14 and threadingly engages the block 42, so that, by rotating the bolt 48, the block 42 can be raised or lowered to increase or decrease the gap between the wheels 10 and 12. The blades 20, 22 are detachably mounted on the free ends of L-shaped arms 52, Figs. 3 and 6, pivoted, by pins 54, to the lower surface of a plate 50 mounted, between adjustable brackets 72 and 74, on the structure 14, Fig. 2, so that the plate 50, and with it the blades, can be adjusted forwardly or backwardly as by a screw 80, Fig. 1, or upwardly or downwardly by moving the brackets 72, 74. The arms 52, of each pair carrying the blades 20 and 22, are urged towards each other by coil springs 56 anchored to posts 58; inward movement of the arms being limited by bosses 60 engaging the protruding ends of adjustable screws 62 threaded through portions 64 of the arms. The screws 62 may be locked, in desired positions, by screws 66. The blades 20 and 22, which are replaceable, are received in recesses 68 in the ends of the arms 52, Fig. 6, and are held by spring clips 70.
Patent GB-1240516-A (GB)
Title: Compound panel structure, primarily a door
IPC: E06B3/70
Filed: 1968-10-22
Abstract: 1,240,516. Door panels. JI-TE AB. 22 Oct., 1968 [25 Oct., 1967], No. 50004/68. Heading B5N. [Also in Division E1] A door panel comprises a core 10, e.g. of a paper honeycomb and two cover layers 12, 14, which may be of hard wood fibre board, each having thin preformed layers 16, 18 of a material impermeable to moisture glued to both faces and to the core with an adhesive such as an epoxy resin. The moisture impermeable layers 16, 18 on each cover layer may be aluminium foil but preferably the inner layers 18 comprise polyethylene sandwiched between paper sheets. The external aluminium sheets 16 may be embossed and/or lacquered or have a layer of thin board applied thereto. Strips of veneer may be glued on to give the appearance of a ploughed and tongued door. The edges of the panel may also be provided with a moisture impermeable layer.
Patent GB-1460219-A (GB)
Title: Oxidized petroleum pitch
IPC: C10C3/04
Filed: 1974-11-20
Abstract: 1460219 Production of binder pitch WITCO CHEMICAL CORP 20 Nov 1974 [11 Feb 1974] 50271/74 Heading C5E In a non-continuous process for the production of a binder pitch by the oxidation polymerization of an aromatic petroleum feedstock, oxygen (or a source thereof) is passed through the feedstock at a rate of flow of 0À01-0À20 cu. ft./min. oxygen/b.b.v., at a temperature of 680-750 F. and at atmospheric pressure. The source of oxygen may be air or an organic or inorganic peroxide. The feedstock preferably has an atomatic content of above 75%, an initial boiling point of above 600 F. and an end boiling point or 1100 F. or lower, and is wholly or partly derived from the catalytic fractionation of petroleum hydrocarbons or modified bottoms fractions thereof. Any low boiling fractions present in the feedstock are removed before the oxidation polymerization stage. The feedstock may be mixed with a previously oxidized aromatic petroleum feedstock, in an amount of 5-50% by weight.
Patent GB-1208888-A (GB)
Title: New phosphorus-containing thioethanolamine derivatives and their preparation
Inventor: CHEYMOL JEAN MARIE
IPC: C07F9/44
Filed: 1967-11-06
Abstract: 1,208,888. Diphosphoryl derivatives of thioethanolamine and intermediates therefor. CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE. 6 Nov., 1967 7 Nov., 1966], No. 50411/67. Heading C2C. [Also in Division A5] Diphosphoryl derivatives of general formula in which A and B each represent an alkyl, alkoxy, haloalkoxy, alkoxy-alkoxy, alkylthio, alkenyloxy, alkenylthio, aryl, aryloxy, (2- tetrahydrofuryl)alkoxy, amino or substituted amino (e.g. di-(C 1 -C 4 )-alkylamino, piperdino or morpholino) group, D and E are each an alkyl or aryl group, R is H-, CH 3 - or C 2 H 5 -, and X and Y are each oxygen or sulphur are prepared by reacting a compound of Formula II in which Hal is halogen, with a salt of formula in which M is a cation (e.g. of an alkali metal, or a tetra-alkylammonium ion such as tetramethylammonium). The reaction may be carried out in an inert organic diluent such as CHCl 3  or CH 3 CN. The products have acaricidal and therapeutic properties. The compounds of Formula II are prepared by reacting a primary or secondary 2-halogenoethylamine with a halide of formula The reaction may be carried out in an inert organic diluent (e.g. CHCl 3 ), in the presence of a halogen hydracid acceptor (e.g. a tertiary amine such as triethylamine).