baber/WOPTO huggingface dataset:
Patent GB-1231094-A (GB)
IPC: H05H1/30
Filed: 1968-09-11
Abstract: 1,231,094. Inductors. HUMPHREYS CORP. 11 Sept., 1968 [14 Sept., 1967], No. 51002/70. Divided out of 1,231,093. Heading H1T. [Also in Division H5] A continuously variable inductor 230 has a tap comprising two juxtaposed discs 232, 234, mounted on an arm 236 which, in turn, is mounted for rotation on a shaft 238 at the centre of the helical inductor coil 230.
Patent GB-1231591-A (GB)
IPC: B41J23/04
Filed: 1968-08-27
Abstract: 1,231,591. Typewriters. INTERNATIONAL BUSINESS MACHINES CORP. 27 Aug., 1968 [18 Sept., 1967], No. 40817/68. Heading B6F. Power operated lever machines.-A power operated typewriter comprises type levers 22 connected to actuator members 15 by connecting links 21, each actuating member being selectively engageable with a reciprocable bail 28 by means of a corresponding key lever 11. Depression of a key 14 acts to urge an actuator member 15 leftwardly, a resilient finger 44 thereby being disengaged from a latching surface 43 on the actuator member, enabling the finger to lift a bail 46 which acts through a lever 47 to initiate engagement of a half-revolution clutch 48, so connecting the drive from a motor 50 to a drive shaft 34. A pair of cams 34 are thereby rotated, lifting the bail 28 to effect an impression. Key interlocks.-Simultaneous actuation of two or more type levers is prevented by a ball interlock 40 which will receive only one tail 38 of an actuator member 15. If a second key is depressed during the cycle of operation of a first key, the corresponding actuator member 15 travels far enough to release the finger 44 so that the clutch 48 remains engaged for a further half revolution to permit a corresponding impression action. Impact adjustment.-The actuator member 15 is driven by the bail 28 for a first part of its pivotal motion after which a projection 55 thereof strikes a rod 56 and the momentum of the actuator member and type lever carry them to effect impression. During the second part of the motion of the member 15, a tab 18 thereof engages the finger 44 which thereby controls the impact. Collective adjustment of the impact is effected by adjustment of the fulcrum of the fingers 44 by movement of a rod (61), Fig. 2, not shown. Letter-by-letter adjustment is achieved by screws 58, 59 which are selectively brought into operative position according to the case shift position. Rebound preventing.-The momentum of an actuator member 15 after impression is absorbed by a resilient finger (67, Fig. 2) which engages a surface 68 of the actuator member. Repeat power action preventing.-If the key lever is still depressed when the actuator member 15 returns after an impression action, the tab 18 strikes a camming surface 74 of the key lever and displaces the key lever out of operative position to prevent repeat action.
Patent GB-1233220-A (GB)
IPC: C04B38/06
Filed: 1968-10-16
Abstract: 1,233,220. Lightweight ceramics. GR.- STEIN REFRACTORIES Ltd. 6 Oct., 1969 [16 Oct., 1968], No. 49054/68. Heading C1J. Lightweight ceramics are obtained by mixing clay with a fibrous natural organic combustible and a synthetic resin prior to drying and firing. Alumina can be included. Sawdust and expanded polystyrene beads are specified.
Patent GB-1233272-A (GB)
IPC: B65G53/46
Filed: 1968-11-13
Abstract: 1,233,272. Mixing in conduits. MARKHAM & CO. Ltd. 8 Oct., 1969 [13 Nov., 1968], No. 53795/68. Heading B1C. [Also in Divisions B8, F1 and F2] A dry concrete mix is discharged from a hopper 45 by a pocket wheel 27, the bottoms of the pockets being curved to be swept by compressed air from a pipe 39, forcing material from them into a delivery conduit 40 and thence into a delivery pipe (not depicted), adjacent the delivery end of which is a water injection flange (50, Figs. 4 and 5, not shown) having an inner peripheral channel (52) from which water passes through holes 57 to an annular channel 56 formed between abutting rings 54, 55. The pocket wheel and the water pump are driven by a common variable speed electric or pneumatic motor 11 so that the dry mix and the water are delivered at constant ratio predetermined rates. The water delivery rate may be adjusted by varying the stroke of the water pump, see Figs. 9-12 (not shown) and Divisions Fl and F2.
Patent GB-1251183-A (GB)
IPC: C07F1/08
Filed: 1967-11-09
Abstract: 1,251,183. Copper (I) complexes; purifying olefins. IMPERIAL CHEMICAL INDUSTRIES Ltd. 7 Feb., 1969 [9 Nov., 1967], No. 51105/67. Heading C5E. [Also in Division C2] Copper (I) complexes of unsaturated hydrocarbons are produced by reacting the hydrocarbon with a copper (II) salt in the presence of an organic phosphite, arsenite or stibinite. The copper salts are conveniently used in solution, e.g. in water, methanol or ethanol. In examples, the copper salts used are the chloride, bromide, tetrafluoroborate and perchlorate, and the hydrocarbon is one of the following: butadiene, 1,5-cyclooctadiene, 2,5-norbornadiene, cyclooctene, dicyclopentadiene, cyclooctatetraene, cis,trans,trans- or trans,trans,trans-cyclododecatriene, or those of following formulae:- The process may be used for purifying these hydrocarbons, as they are recoverable by heating the complex.
Patent GB-1252795-A (GB)
IPC: H03K19/013
Filed: 1969-05-21
Abstract: 1,252,795. Transistor logic circuits. NIPPON TELEGRAPH & TELEPHONE PUBLIC CORP. 21 May, 1969 [22 May, 1968], No. 25932/69. Heading H3T. A logic circuit is made up of a plurality of inverter type circuits comprising a transistor 6 having collector and emitter resistors 8, 9 connecting it between the supply terminals 1, 2, R8 being greater than R9 and the supply voltage being less than twice the base-emitter voltage drop V BE  of the transistor. This swing preferably equals the value of V BE . less the collector to emitter saturation voltage V CE . The transistor thus operates over a linear range from a fully-on but nevertheless not saturated condition, to the just-off condition where the base voltage is just below V BE . Consequently fast operation is obtained, and the low voltages and low values of R8, R9 produce low power consumption. Two transistors 6, 7 in parallel act as an OR gate, and the voltage swing at the collector is at the correct level to apply directly to the base of a succeeding stage 3, 4. Lower level logic signals may be used by applying the input to an intermediate point (between 9, 10, Fig. 6, not shown), in the emitter resistor and taking the output from an emitter follower (12). In another embodiment, the logic circuit includes a transistor wherein the signal is applied only to the emitter circuit the base being connected to the positive supply (Fig. 7, not shown) or connected to an intermediate point in the collector resistor (between 8, 14, Fig. 8, not shown). Alternatively the base bias may come from a resistor-dioderesistor chain across the supply (Fig. 9, not shown). Each inverter circuit of the logic circuit of the invention may be incorporated in a Schmitt circuit (Fig. 10, not shown) or in an emitter coupled type circuit (Figs. 11, 13,14, not shown). An AND gate may be incorporated in the logic circuit of the invention using opposite conductivity type transistors (26, 27, Fig. 15, not shown).  Two bi-stable circuits (Figs. 16, 17, not shown) embody the inverter circuits, one having two pairs (6, 7, 19, 31) of transistors one pair crosscoupled with the other and the inputs being received at those bases not cross connected; and the other having two cross-coupled transistors (7, 19) receiving the inputs in their emitter circuits. Voltage regulating circuits for the logic circuits (Figs. 18, 19, 20, not shown) are described.
Patent GB-1257059-A (GB)
IPC: G03B21/64
Filed: 1969-01-20
Abstract: 1,257,059. Combating pests with alkaryl hydrocarbons. PHILIPS GLOEILAMPENFABRIEKEN N.V. 20 Jan., 1969 [23 Jan., 1968; 5 April, 1968], No. 3095/69. Heading A5E. A method of combating insects or mites on crops comprises the application of an alkyl derivative of benzene, toluene, xylene or mesitylene in which the alkyl is C 8-15 , e.g. dodecyl benzene. The active ingredient may be applied per se or in the form of an emulsion derived from a misciple oil or a flowable paste. Other pesticides may be included, e.g. parathion, malathion, DDVP ethion, O,O-di Me -O-(3-Me-4-nitrophenyl)- phosphorothioate, HCH, chlordane, lindane, toxaphene or carbaryl.
Patent GB-1264072-A (GB)
IPC: B29C48/08
Filed: 1970-05-06
Abstract: 1,264,072. Moulding strapping. E. I. DU PONT DE NEMOURS & CO. 6 May, 1970 [7 May, 1969], No. 21866/70. Heading B5A. [Also in Divisions A4 and C3] In a crystalline thermoplastic resin strapping which is longitudinally oriented by rolling of an extruded billet, is of a tensile strength greater than 28 kg./mm.<SP>2</SP>, and is of at least 0À25 mm. thickness and 6À35 mm. width, the transverse propagation of longitudinally extending tears is prevented by grooves 36, Fig. 7, formed by the orienting rolls and extending longitudinally in a strapping surface, or in opposed surfaces, which are of a depth of 10 to 35% of the strapping thickness and the bottoms of which define a flat, or rounded, notch which is of an effective radius of curvature, of less than 0À075 mm., and preferably less than 0À025 mm. The grooves may be oppositely disposed as shown, or staggered. In the Fig. 8 embodiment (not printed) the notches are defined in the flat bottom of generally rectangular shaped grooves. The groove sides may also be inclined at 45 degrees. The resin may comprise polyethylene terephthalate which is preheated at 30 to 80 C. to cause conversion upon rolling, to the crystalline form from the amorphous extrudate, but in the preferred embodiment the resin comprises polyamide such as polycaprolactam, polyhexamethylene adipamide, or sebacamide, advantageously including 0À2 to 5% by weight of plasticizer (see Division C3) which is oriented by the rolling of the extruded billet, to 3À9 to 4À5 times its length, and to 0À7 to 1À5 times its width. The resin, extruded as a rectangular billet from a die orifice 21, is drawn by rolls 6, 7 through a water quench bath 4, in which it is linearly guided through pins intermediate entry and exit rolls, which it leaves at an angle to the water surface of 8 to 15 degrees and is fed across dancer arm 9, through a preheater 10 for heating to 15 C. below the crystalline melting point. The heated billet is then drawn by minimal tensioning rolls 14, 14<SP>1</SP>, through one or more pairs of orienting rolls 12, 13, each comprising a nip between spaced roll flanges 22 which limit the width 29 of the strapping, one or both of the final roll pair 12, 13 having circumferentially continuous projections which define the strapping grooves. The strapping is then fed through heat conditioner 15, having an exhaust 31, and wash tank 17 to be taken up on a spool 18.
Patent GB-1264602-A (GB)
IPC: H01M6/36
Filed: 1970-01-23
Abstract: 1,264,602. Thermal cell. SOC. DES ACCUMULATEURS FIXES ET DE TRACTION. 23 Jan., 1970 [28 Jan., 1969], No. 3504/70. Heading H1B. The solid electrolyte of a thermal cell, together with its heating device for converting it to the molten state during activation are stored in a container distinct from the casing which holds the positive and negative electrode plates which are respectively connected in parallel. As shown, positive plates 2 of oxidized sintered copper on a copper sheet and negative calcium plates 3 separated by thin ceramic felt separators 4 of cell 1 are contained in metal casing 5, e.g. titanium. The electrolyte 7, consisting of a eutectic mixture of lithium chloride and potassium chloride and a pyrotechnic mixture of aluminium and vanadium pentoxide, which may be in the form of several plates 8 distributed throughout the electrolyte or of starlike shape, are held in container 9 which opens into casing 5 through an aperture. The cell is activated by igniting fuse 10 and the molten electrolyte flows into cell 1.
Patent GB-1288539-A (GB)
IPC: G01N27/12
Filed: 1970-05-22
Abstract: 1288539 Gas detectors N TAGUCHI 22 May 1970 8085/72 Divided out of 1282993 Heading G1N In a gas detecting device of the type having a metal oxide semi-conductor whose electroconductivity changes by contact with a reducing gas composition, a heater having a negative temperature coefficient of resistivity to provided for heating the semi-conductor to provide temperature compensation. As shown, the semi-conductor is in the form of a rod 84, as is the heater 86 which is also a semiconductor which may be the same material as the rod 84 in which case rods 84, 86 are integral. Electrodes 88, 90. 92 are connected to a voltage source, 88 through a relay 14, and 92 through a stabilizing resistor 94.
Patent GB-1290533-A (GB)
IPC: B65D77/20
Filed: 1969-09-12
Abstract: 1290533 Portable containers; packages WILLIAM GARFIELD Ltd 11 Sept 1970 [12 Sept 1969] 45015/69 Headings B8C and B8D A peripheral rim 17, which is upstanding from a continuous lateral flange 15 of a foil container 12 and which is provided with a rolled edge 18, is cut through at the corners to facilitate folding down on to a lid 16 supported on the flange. The cuts are in the form of notches, the sides of the notches meeting on folding of the rim portion to produce a neat corner formation, Fig. 2 (not shown).
Patent GB-1295054-A (GB)
IPC: H01J37/20
Filed: 1969-06-17
Abstract: 1295054 Electron microscopes ASSOCIATED ELECTRICAL INDUSTRIES Ltd 16 Sept 1970 [17 June 1969] 30655/69 Heading H1D An electron microscope specimen 3, Fig. 3, is supported on a rod 4 which passes axially through a cylinrical sleeve to which it is sealed by an O-ring; when the rod 4 is withdrawn far enough, a control knob on its exterior end (not shown) engages the sleeve so that the sleeve may be rotated and thereby, via gears 11 and 12, rotate a closure member 15 until it covers the open end of the sleeve; the rod 4 and the specimen may then be withdrawn without destroying the vacuum within the microscope. In the operative position shown the specimen rests on a carriage 21 which is movable in one direction by means of an adjusting rod 22; the carriage 21 is mounted on a second carriage 23 movable by a second adjusting rod (not shown) and guided by rollers 27 and surfaces 28 along an arc centred on the O- ring seal (not shown) between the rod 4 and its surrounding sleeve. The two adjusting rods may be driven by electric motors which may be remotely controlled. The apparatus illustrated includes a further rod 26 provided at its end with a number of apertures of different diameters.
Patent GB-1297252-A (GB)
IPC: G01R19/04
Filed: 1969-09-18
Abstract: 1297252 Machine tool details DEFENCE SECRETARY OF STATE FOR 18 Sept 1970 [18 Sept 1969] 46033/69 Heading B3B [Also in Divisions G1 G3 and H3] In a system for maintaining the temperature of the tool in a milling machine 111, Fig. 3 or the force applied to the tool in a lathe (not shown) constant, so as to ensure optimum utilization of the tool and of the machine, a voltage 124 representative either of the tool temperature or of the tool force is amplified 120, subtracted 101 from a preset voltage 100 representative of the desired temperature or force, the difference is sampled and stored 102 at instants corresponding to the peaks of the tool voltage 124 by a circuit 121, 122, 123, 102, see Divisions G2 and H3, and the resulting signals are amplified 104 and applied to a tool motor drive amplifier 108, negative feed back being provided by a tachogenerator 112. A manual override control 106 is provided and is operative when a switch 105 is in its upper position, shown dotted.
Patent GB-1297262-A (GB)
IPC: E04G21/12
Filed: 1969-01-15
Abstract: 1297262 Prestressed concrete CCL SYSTEMS Ltd 14 Jan 1970 [15 Jan 1969] 2420/69 Heading E1W A number of pre-stressing strands or wires, forming a prestressing tendon, are threaded simultaneously through apertures in a spacing plate 4 by using a similar number of threading elements 1 of metal or plastics, each in the form of a thin-walled tube with a radiused nose (e.g. 2) formed separately from or integrally with the tube, the elements being telescoped over the end of the wires, the plate being moved into proximity, and the elements then being slid along the wires into the holes, whilst still being in engagement with the wires, relative movement then being caused between the wires and the plate. The element may have one or more longitudinal slits 3, and may be tapered (after manufacture in the case of a metal tube with slits).
Patent GB-1310016-A (GB)
Title: Method of knitting an enclosed toe and the product thereof
IPC: D04B9/46
Filed: 1969-08-29
Abstract: 1310016 Knitting BENTLEY ENG CO Ltd 28 Aug 1970 [29 Aug 1969] 43104/69 Heading D1K Circularly knitted fabric, e.g. forming a stocking or the like, is closed on the knitting machine by holding a yarn of an initial course on loop holding instruments and knitting tubular fabric on all the needles in a knit/miss or knit/tuck pattern which fabric is constricted to form a closure after which the yarn is transferred from the loop holding instruments to the needles and a joining course is knitted. At one feed, yarn 1 is fed to every other needle IN in the first revolution, yarn 2 is fed to every needle in the second revolution and in the third revolution the needles AN which did not knit in the first course are lowered and dial hooks D7 projected over them so that yarn 3 is taken by needles IN and the hooks DH which hold these loops while the rest of the toe is knitted. At the fourth revolution, needles IN knit yarn 4 through loops 3b floats 4f being formed between. Course 5 is then knitted at the second feed through loops 2a on needles AN floats 5f being formed between: Course 6 is similar and in courses 7 and 8 needles AN hold their loops and needles IN knit. Courses 5-8 are repeated throughout the toe fabric. This fabric may be knitted with the same yarn as is used in the rest of the tights or stocking. This forms a turned welt which is closed by a constricting yarn see Specifications 1,253,684 and 1,264,303. Alternatively a tuck and float fabric may be used. The toe may be knitted at the end of the garment instead of the beginning.
Patent GB-1313301-A (GB)
Title: Printing apparatus
IPC: B41F17/00
Filed: 1969-06-17
Abstract: 1313301 Ceramic plate printing machine MEAKIN & MIDWINTER (HOLDINGS) Ltd 4 June 1970 [17 June 1969] 30527/69 Heading B6C In an automatically operated ceramic plate printing machine a rubber offset pad 50 descends twice per operative cycle the first descent for imaging from a slidable inked intaglio plate 47 and the second descent for printing the concave surface of a ceramic plate presented to the pad by a rotor arm 14 on which the plate is temporarily secured by suction induced through piping within the arm. The machine is controlled by limit switches and in operation a plate is carried by a suction device 44 from a rotatable feed device 41 to a centering and holding table 25 where the undersurface of the plate is stamped by a device 46. A pneumatically operated pivoted arm 36 carries the plate from the table 25, and places it concave face upwardly on an arm 14 of an intermittently movable rotor 11. After printing, the plate is released and fed on to a delivery conveyer 55. The intaglio plate 47 is inked from a fountain arrangement 52 and tripped by a blade 53. The rotor 11 is pneumatically rotated by a ratchet device 21, 22 and a further pneumatic motor 34 is used to operate the ceramic clamping and centering means on the table 25. If the clamping and centering means fail to find a plate on the table 25 the machine is automatically stopped as the motor 34 is tripped out.
Patent GB-1314195-A (GB)
Title: Variable pitch propellers
IPC: B63H3/00
Filed: 1970-11-21
Abstract: 1314195 Variable pitch propellers W E STOREY 27 Sept 1971 [21 Nov 1970] 55471/70 Heading B7V In an automatic variable pitch propeller the blades of which are mounted on pinions 8 of a differential gear, the angle of pitch of the blades is dependent on the differential rotation of side gears 5A, 5B which engage the pinions on which the blades are mounted. The differential rotation of the side gears is controlled by springs 10 which connect the side gears through the central hub 9 of the propeller.
Patent GB-1325175-A (GB)
Title: Tool stores for machine tools
IPC: B23Q3/155
Filed: 1970-11-03
Abstract: 1325175 Tool changers WERKZEUGMASCHINENKOMBINAT "FRITZ HECKERT" KARL - MARX - STADT VEB 3 Nov 1970 52272/70 Heading B3B A tool store comprises an indexable tool store body 1, e.g. a disc, drum or chain link, which has a plurality of storage stations 3 for rotary tools which permit withdrawal of the tools in a direction perpendicular to their rotational axes, the storage station 3 each comprise a tool retaining device which includes a holding segment 5 which engages in a holding groove 6 of the tool and at least two fastening members 8 slidable parallel to the axis of the tool, lateral faces of the free ends of which are directed towards a collar 10 of the tool and the terminal end faces of which are located above the holding groove 6, while their other ends are connected by a movable bridge 11 which carries a conical bolt 14 which engages in a centre bore of the tool. To release a tool for extraction by a transporting gripper which engages in the groove 6, an actuator 18 raises the bridge 11. The pins 8 may be spring loaded to a locking position.
Patent GB-1331455-A (GB)
Title: Automatic pilot devices
IPC: G05D1/00
Filed: 1970-11-18
Abstract: 1331455 Automatic control of aircraft SOC DE FABRICATION D'INSTRUMENTS DE MESURE 18 Nov 1970 [9 Dec 1969] 43654/72 Divided out of 1331454 Heading G3R In an automatic pilot, a reference signal representing the desired operation of a servomechanism acting on the controls of an aircraft (e.g. helicopter) is formed by an arrangement in which a signal representing one of the variables pitch, roll and yaw and two other signals each representing independently the rate of change of that variable are passed through respective limiters and combined to form said reference signal, whereby the occurrence of an active fault upstream of one of the limiters results in only limited movement of the corresponding controls. In Fig.2, a yaw control system includes a heading gyroscope 35 and two rate-of-yaw gyrometers 33, 34. Their outputs pass through limiters 41-46 to summing points 39, 40 to provide respective inputs to difference detectors 4, 5. Servomotor 1 has two stator windings energized by respective error signals from detectors 4, 5 which receive respective actual position signals so that if an active fault occurs in one loop the other loop will generate a current in its stator winding to oppose the current in the other stator winding due to the fault, thereby rendering the fault passive and preventing a sudden movement of the motor to its limit of travel. Amplifiers 6, 7 amplify only positive and negative polarity signals respectively. A pitch (or roll) control system Fig.1 (not shown) includes a vertical gyroscope (21) and a rate-of-change of pitch (or roll) gyrometer (24), the second rate signal being obtained from the gyroscope (21) by differentiating (19). Power feed arrangement Fig.3 (not shown). Each amplifier 6, 7 consists of an operational amplifier (6a) or (7a) and a power amplifier (6b) or (7b). The actual position transducers (8, 9) and operational amplifiers (6a, 7a) are supplied in parallel from the same rectifier (47) so that power failure leads to immobilization of the servomotor. A logic circuit (48) blocks power amplifiers (6b, 7b) if the power supply fails.