baber/WOPTO huggingface dataset:
Patent GB-1098192-A (GB)
Abstract: 1,098,192. Detection of flames and ultraviolet radiation. L. S. M. CONTROLS Ltd. Jan. 11, 1965 [Jan. 21, 1964], No.2525/64. Heading G1A. An ultraviolet radiation detector suitable for use as a burner flame monitor comprises a gas discharge tube connected to an A. C. or D. C. voltage source through a quenching impedance. The voltage across the impedance is fed to a rectifier circuit through a coupling capacitor. When ultraviolet radiation falls on the tube this is rendered conductive and the current flow through the impedance lowers the potential across the electrodes below extinction level. An alternating waveform is thus produced across the impedance. Neither open-circuit nor closedcircuit conditions in the circuit produce the same result although if an alternating current supply is used it may be necessary to incorporate a mains frequency rejecting tuned circuit prior to the rectifier. The Figure shows detector tube 10 fed from A. C. supply 12 through quenching impedance 11 which may consist of a resistor, resistor and capacitor, or capacitor. The potential across 11 is fed through capacitors 13 and over line A-A, B-B to rectifier 16, and smoothing circuit 17 to control relay F/4 by means of double triode 18-19. The relays contacts may be used for indicating and/or control purposes.
Patent GB-1143889-A (GB)
IPC: H01H33/666
Abstract: 1,143,889. Vacuum switches; arcing preventing in switches. GENERAL ELECTRIC CO. 6 Dec., 1967 [12 Jan., 1967], No. 55532/67. Heading H1N. [Also in Division H2] A pair of vacuum switches 12, 14 are connected in parallel and operated at the same time by a spring 25 when released by a latch 26, means being provided to prevent release of the latch during the period immediately preceding current zero so that even if the contacts do not separate simultaneously they nevertheless cannot separate on opposite sides of the current zero. The latch 26 is released by a solenoid energized through a controlled rectifier 32; the S.C.R. 32 is connected to a trigger circuit 40 by an overload relay 53. The trigger circuit 40 provides pulses at a fixed point on each A.C. cycle before the peak so that when the relay contacts 54 are closed the S.C.R. is triggered by the next pulse. Inductances (60) (Fig. 1, not shown) are placed in series with each switch 12, 14 to assist current division. In Fig. 3, these inductances are the primary windings 90 of a core balance transformer 75. If due to faulty operation the currents through the two switches are unequal, a relay 93 operates after a delay to actuate an hydraulic reclosing device 70; a further contact 82 prevents reclosing until the vacuum switch contacts reach their fully open position. After several faulty operations a counter 85 disconnects the trigger circuit 40 and the switches remain closed. In a modification (Fig. 4, not shown), the transformer 75 is replaced by two overload relays responsive to the two currents. The two vacuum switches may have a common envelope.
Patent GB-1225440-A (GB)
IPC: B31F1/07
Filed: 1969-07-31
Abstract: 1,225,440. Laminated embossed products and apparatus therefor. PAPER CONVERTING MACHINE CO. Inc. 31 July, 1969 [23 Jan., 1969], No. 38506/69. Heading B5N. [Also in Division B6] An embossed laminated towelling comprises webs 15, 23, each provided with embossments 17, 25 forming projections, bonded by adhesive applied to at least some of the projections 17. Projections 25 may or may not have the same height as projections 17. 10-200 projections, of height 0À01-0À05 inch, can be provided per square inch. The laminate is made by passing webs 15, 23 around platen rolls 11, 14 and embossing rolls 12, 13; adhesive is applied to web 15 from trough 19 by rolls 20-22. Roll 22 may be patterned so that only some of the projections 17 are coated with adhesive. The superposed webs are pressed together by roll 12 and roll 27 which may be rubber-covered (in which case it need not be driven) and may have a different diameter from roll 12. The adhesive may be coloured for use with translucent or transparent webs.
Patent GB-1225523-A (GB)
IPC: B29C48/10
Filed: 1968-02-27
Abstract: 1,225,523. Rotatable duct coupling. ETHYL CORP. 27 Feb., 1968 [27 Feb., 1967], No. 9486/68. Heading F2G. A rotatable duct coupling 12 comprises a base member 20 having a passage 25 and, at one end, upstanding inner and outer annular walls 26, 43 coaxial with the passage to define an annular recess 24. A rotatable cylindrical support member 27 is provided and comprises, at one end, an annular wall 29 which is rotatably received in the annular recess. The support member 27 also comprises a passage co-extensive with passage 25 in the base member. At least one passageway 36 passes through the base member 20 connecting the annular recess 24 to atmosphere. One of the members is provided with at least one further passageway 42, 50, the or each further passageway being continuously in register, as the support member rotates, with a separate annular groove 38, 39 coaxial with the axis of rotation of the support member and connected to a still further passageway. The or each annular groove and the or each associated still further passageway are in the other member. The combination of two further passageways and a groove are isolated from all other passageways, grooves and passages. In the construction shown, one part of one of the further passageways is formed by an annular space between a body 28 and a central cylindrical barrel 30 of the support member. The support member 27 is rotatably mounted in the base member 20 by bearing assemblies 52, 53 which may comprise rollers, as shown, or balls. The further passageways may be used for heating the coupling and an associated extrusion die (Fig. 1, not shown) by steam, the steam passing to the die through one passageway and being conducted away from the die through the other, used steam being then conducted into a recess 71 to heat the base member 20. The support member 27 is rotated through a chain driven sprocket 18.
Patent GB-1225681-A (GB)
IPC: B41L29/00
Filed: 1968-02-29
Abstract: 1,225,681. Electric couplings. EASTMAN KODAK CO. 29 Feb., 1968 [6 March, 1967], No. 9809/68. Heading H2E. [Also in Divisions G2-G3] A photo-conductive member requiring an electrical connection to a conductive layer 11 thereof and arranged for movement in an electrophotographic apparatus has a clamp comprising a conductive plate 15 in contact with the layer 11 and a portion 16 engaging a support 10, the plate 15 and portion 16 being urged together by rivets or other fastening means 17. Perforations 18, 19 arranged to engage pins (not shown) in the electrophotographic apparatus provide the electrical connection when the portion 16 is of insulating material. If the portion 16 is of conducting material, electrical connection is achieved through rivets 17. In another embodiment, upper and lower clamp portions (21 and 22), Fig. 2 (not shown), are formed from a single sheet of resilient metal. If desired, conductive paint, glue, paste or other conductive material (99), Fig. 4 (not shown), may facilitate contact between the clamp and conductive layer 11. In another embodiment, clamp members 60 and 61, Fig. 9, are curved to conform to a rod 63 provided with pins 65 received in perforations 66. The photo-conductive members may be fed in flat condition through the electrophotographic apparatus by chains (70), Figs. 10 and 12 (not shown), carrying mounting blocks (71) for sleeves (75), Fig. 10, spring-urged to hold the members flat. In another embodiment, Fig. 11 (not shown), the photo-conductive member is clamped to a drum (89).
Patent GB-1226863-A (GB)
IPC: B25H3/02
Filed: 1968-03-13
Abstract: 1,226,863. Boxes. HERZOG UND LANGEN G.m.b.H. 13 March, 1968 [27 July, 1967], No. 12202/68. Heading B8P. [Also in Division A4] A tool box comprises a number of sections 5 slidable on rails 4 to an open position where the sections define a step-like formation. As shown, the sections slide on rails of approximately circular cross-section attached to the upper edges of the side walls, guide elements 6 being attached to the lower edges of the side walls. The rails and guide, elements are formed by suitably shaping the upper and lower edges of the side walls. Alternatively the rails and guide elements may have a right-angled profile. Retaining means are provided to prevent the sections from being moved beyond engagement with the associated rail.
Patent GB-1227474-A (GB)
IPC: C08G63/82
Filed: 1968-12-11
Abstract: 1,227,474. Glycol diesters of polycarboxylic acids. GOODYEAR TIRE & RUBBER CO. 11 Dec., 1968 [8 Jan., 1968], No. 58896/68. Heading C2C. [Also in Division C3] Glycol diesters of polycarboxylic acids are made by ester interchange between an alkyl ester of a polycarboxylic acid, and a glycol, said ester interchange being carried out in the presence of a catalytic amount of (a) an organic amine compound of ametal of Formula (I) or (II) where M is a metal in any of Groups I to VIII of the Periodic Table, R is an alkyl, aryl, aralkyl, alkaryl, alicyclic, alkoxy or an aryloxy group; R<SP>1</SP> and R<SP>11</SP> are alkyl, alkenyl, or alkynyl groups of up to 20 carbon atoms, or aryl, aralkyl alkaryl or alicyclic groups; v is the valence of the metal; x is a co-ordination number of the metal and y is an integer from 1 to (v - 1) or a catalytic amount of (b) a heterocyclic nitrogen compound of a metal wherein the heterocycle contains only N, C and H atoms; and in which in both (a) and (b) above the nitrogen is linked to the metal by a valence bond, neither of (a) or (b) being ionic salts. Preferred metals are Li, Na, K, Mg, Ca, Zn, Cd, Nd, Sm, Ti, Ge, Sn, Pb, Sb, Bi, W, Mn, and Co. In the examples diesters are made from ethylene glycol and terephthalic acid, in the presence of some of the above catalysts-mixtures may be used-and these esters are used to make polyesters.
Patent GB-1227630-A (GB)
IPC: H02J7/00
Filed: 1968-08-23
Abstract: 1,227,630. Battery charging systems. BRITISH AIRCRAFT CORP. Ltd. 3 Oct., 1969 [23 Aug., 1968], No. 40497/68. Heading H2H. [Also in Division G3] A method of monitoring and controlling the charging of an electric battery comprises generating an electric signal having a predetermined parameter which represents the current limits during a charging cycle and comparing the actual charging current with the signal so that the charging current is automatically terminated or reduced should the actual charging current exceed that represented by the signal of the corresponding point in the charging cycle. A battery to be charged is connected to an output terminal 66 fed from a D.C. supply 42 by way of current measuring circuits 48, 64, chopper circuits 50, 58, filters 44, 62 and a transformer 56 having eight separate output channels. The output level of the current at terminal 66 depends on the pulse width output of the chopper circuit 58 and this is governed by a control logic circuit 68 by way of a pulse width modulator 60. The logic circuit has a plurality of inputs, one from each of amplifiers 70, 74, 78, 80 wherein quantities are compared with the charging current measured by the circuit 64, one from an amplifier 88 and one from a polarity detector 108. The desired charging current characteristic of an initial constant portion and a subsequent linearly decreasing portion is generated by a circuit 72 the characteristic being related to the ampere hour capacity of the battery being charged by means of an input signal 86 fed into a current limiting reference circuit 76. From this circuit signals bearing different relationships with the battery capacity are fed to the generator 72, and thence to amplifier 70, and to the amplifiers 74, 78, 80. Should the charging current measured by the circuit 64 depart from the characteristic generated by the circuit 72 the logic circuit 68 becomes effective to terminate or to reduce the charging current. The polarity detector 108 inhibits operation of the circuit inter alia, by a relay 106 should the battery be connected wrongly and the amplifier 88 is effective to make the system responsive to the voltage of and type of battery being charged. A further signal fed to the circuit 76 by line 104 applies an override signal should the peak power taken from the system exceed a predetermined maximum thereby to reduce the power input. Indicator lamps are provided showing various conditions of the system.
Patent GB-1227663-A (GB)
IPC: B60R21/16
Filed: 1969-05-07
Abstract: 1,227,663. Crash restraint bags. EATON YALE & TOWNE Inc. 7 May, 1969 [10 June, 1968], No. 23296/69. Heading B7B. A crash restraint bag is shaped to engage the dashboard 14 and windshield 28 and its rearward part overlies the legs of an occupant and engages the torso to prevent upward movement of the occupant. The part 46 is inclined so that the torso engages the bag before the head.
Patent GB-1227855-A (GB)
IPC: F24F13/15
Filed: 1968-03-14
Abstract: 1,227,855. Fan heaters. EKCO-HAWKINS Ltd. 27 Feb., 1969 [14 March, 1968], No. 12362/68. Heading F4V. A fan heater of the larger industrial type has director vanes 5 oscillated by an electric motor to distribute the air flow. Each blade is pivoted at its upper and lower ends in a frame member 4 along the top and bottom of an outlet 2 and is connected by an arm (6, Fig. 2) to a common control arm (8) driven by the motor. Alternatively, the arm may be connected to a manual control. The blades move through 60 degrees at a rate of seven times per minute. A 3 kw. heater is used giving a flow of 145 cu. ft./min. at 700 feet per minute and ensuring a temperature rise of 50‹ C. The heater can be adjusted in the vertical and horizontal planes when suspended on a wall or ceiling; a floor standing bracket can be provided. A thermostat and a thermal cut-out with automatic reset can be provided. Cool air can be circulated in summer. If fixed above a door the heater provides an air curtain.
Patent GB-1228690-A (GB)
IPC: B65B35/54
Filed: 1969-12-03
Abstract: 1,228,690. Feeding bottles to endless conveyers. SIDEL SOC. ANON. 3 Dec., 1969 [31 Dec., 1968], No. 59052/69. Heading B8A. In apparatus for regularly re-grouping and distributing objects 2 from different origins on a lead-out conveyer 1, these objects being fed by a plurality of feed conveyers 3, 4, extending at right angles to the lead-out conveyer, each feed conveyer comprises, a lock-chamber 11 disposed at its delivery end equipped with means permitting the passage of only one object at a time towards the lead-out conveyer; an input pickup 13 adapted to be energized only by the permanent presence of an object on the feed conveyer at a point located upstream of the lockchamber; and an output pick-up 15 responsive to the passage of each object on the lead-out conveyer 1. The various input pickups 13 and the single output pick-up 15 are connected to an electric control device (Fig. 5, not shown) causing the simultaneous opening of the lock-chambers 11 of the feed conveyers. The permanent presence of objects is detected by their energized input pick-ups, the rate of opening of the lock-chambers being inversely proportional,to the number of energized input pickups. As shown, each feed conveyer 3 consists of a shoot in which the objects (bottles) are fed by gravity action. Each lock chamber 11 (Fig. 2) comprises stops 36 and 38 controlling entry and exit respectively. The stops are coupled together and are operated in one direction by a solenoid 27 and reversely by a solenoid 28. Alternatively there may be one solenoid and a spring opposing action. The circuitry of the control device is described in detail.
Patent GB-1231199-A (GB)
IPC: G01F1/60
Filed: 1967-10-03
Abstract: 1,231,199. Measuring fluid-flow electrically. MAWDSLEY'S Ltd. Sept.27, 1968 [Oct. 3, 1967], No. 44868/67. Heading G1N. An electromagnet induction flowmeter 4 includes circuits to modify the voltage induced across electrodes 7 so that the indicated output voltage V o  is proportional to true flow and insensitive to variations in the energizing current for the magnetic field coils 3. A current transformer, 10, generates a voltage proportional to the energizing current which voltage is rectified at 13 and fed at V 3  to a gate, 14, where it is pulse width modulated by a pulse voltage V 1  of mark/space ratio k from a pulse generator, 2, the resultant voltage V 4  being compared with a voltage V 5  from a stablized D. C. reference source, 16, (in difference amplifer 17) of which the output controls the pulse generator to maintain mark/space ratio k = V 5  / V 3 . A voltage V 2 , which is induced between electrodes 7 and amplified in difference amplifier, 18, is modulated by pulse voltage V 1  in gate 6, the resultant voltage V o , after smoothing at 19 and amplification at 20 being proportional to the ratio of the induced voltage to the field energizing voltage. In another embodiment, Fig. 2, the mark/space ratio is inversely proportional to the ratio of the stabilized reference voltage Y 105  to the voltage V 103 , proportional to the field energizing current, and an operational amplifier loop 122 produces an output voltage V 106  proportional to the ratio of the amplified induced voltage V 102  to the mark/space ratio k. As before the indicated output voltage V 108  is independent of field coil supply voltage variations.
Patent GB-1231540-A (GB)
IPC: A01K89/02
Filed: 1969-06-04
Abstract: 1,231,540. Fishing reel drive means. ABU A.B. 4 June, 1969 [17 June, 1968], No. 28281/69. Heading A1A. Fishing reel drive means including a friction clutch with regulatable drag action comprises a crankshaft 2 journalled in hub 3 and having a spool driving gear wheel 1 attached. Drive gear 1 is friction coupled by friction member 5 to end plate 6 which rotates with shaft 2. Other end of shaft 2 is threaded to receive screw 12 having bell-shaped head 13 and compression spring 14 acting against wall 24 of protector cap 23. Said cap covers cam plate 15 co-acting with projections 19 on hub 16 of reel crank 4. Shaft 2 is axially, chamfered and members 7, 8, 15 can move axially thereon but not rotate thereabout, hub 16 has a generally circular crosssection hole and projections therein to limit rotation about said shaft. Rotation in the normal winding-in direction of crank 4 causes projections 19 to ride on inclined surfaces 20 and move wall 24 causing compression of spring 14, so producing more drag on gear 1 from end plate 6 and intermediate plate 9 by axial movement of shaft 2. When crank 4 is released, the device will return to its low drag state. Screw 12 can be screwed-up so to cause locking of plate 6 and gear 1.
Patent GB-1232886-A (GB)
IPC: G03C3/02
Filed: 1969-01-24
Abstract: 1,232,886. Coated paper. FUJI SHASHIN FILM K.K. 24 Jan., 1969 [26 Jan., 1968], No. 4298/69. Heading B2E. Light-intercepting paper for photographic films comprises a paper support coated with a layer consisting of vinyl acetate-ethylene copolymer having carbon black dispersed therein. The preferred copolymer contains 12-40% vinyl acetate. Preferably the proportion of carbon black is 3-50%. The paper may be optionally coloured, may be a laminate of a white and coloured paper, and may have a printed layer and a continuous layer of the light-intercepting composition on the opposite side to the print-bearing side.
Patent GB-1233593-A (GB)
IPC: G01S13/78
Filed: 1968-05-23
Abstract: 1,233,593. Radio navigation. INTERNATIONAL STANDARD ELECTRIC CORP. 23 May, 1968 [31 May, 1967], No. 24690/68. Heading H4D. In a sector radio beacon a first aerial radiates on frequency F, a second aerial radiates on frequency F +f (or F-f) and is spaced from the first aerial by a distance d determined by the wavelength # corresponding to F and the desired sector width, and a third aerial radiates on frequency F + nf (or F-nf) where n is an integer greater than unity, and the spacing between first and third aerials is nd. The aerials may be collinear or, to reduce backward radiation, the first aerial is offset forward of the line joining the other two by #/4. In an embodiment d = 5#/#, f= 15 Hz. and nf= 135 Hz., for use with a TACAN receiver. The first aerial is modulated with transponder reply pulses or random pulses as in TACAN. A further aerial, on the other side of the first aerial relative to the second aerial, may be added and radiates on F - 15 Hz. if the second aerial radiates on F+15 Hz., or vice-versa. Reference pulse trains are radiated by the first aerial. The beacon may be utilized for aircraft approach.
Patent GB-1233917-A (GB)
IPC: F15B13/04
Filed: 1967-09-07
Abstract: 1,233,917. Valves. CAM GEARS (LUTON) Ltd. 19 Aug., 1968 [7 Sept., 1967; 11 Sept., 1967], Nos. 35531/68 and 41325/67. Divided out of 1,210,226. Heading F2V. A valve assembly for actuating a single acting ram 8, comprises two ball valves 6, 6A and 12, 12A, two tappets 9 and 14, and a control lever 3 which is pivoted at 4. In operation, upon rocking the lever to the left, as seen in the drawing, tappet 9 displaces ball 6 and pressure is applied to the ram 8, the pressure being derived from a pump 10A fed from reservoir 10B. Reserve rocking of the lever results in ball 6 becoming seated and ball 12 unseated, the pressure previously applied to the ram being thus allowed to vent to the reservoir. In order to prevent pressure in the line leading from the pump to the assembly displacing the tappet 9, the latter is formed at its innermost, ballengaging end with a stop 9A. In an alternative embodiment (Fig. 2, not shown), which is used to actuate a doubleacting ram, the valve assembly of Fig. 1 is duplicated so that there are two pairs of ball valves, each ball having its own actuating tappet and all tappets being operated by a single lever which carries a cross arm.
Patent GB-1234035-A (GB)
IPC: A61B17/068
Filed: 1967-09-12
Abstract: 1,234,035. Stapling devices. MALLETTS (SURGICAL INSTRUMENTS) Ltd. 11 Oct., 1968 [12 Sept., 1967], No. 41616/67. Heading B4C. [Also in Division A5] A pair of forceps 10 for setting a staple 20 are formed from stainless steel and have one jaw 16 pivoted to a second jaw 15 carrying an anvil 23 to set the staple, the first jaw 16 having a head (18) at its free end to support the staple and a cage 19 which surrounds the head, is movable relative thereto, and supports and guides the staple, the cage 19 being integral with one end of a flat leaf spring 21 the other end of which is secured to jaw 16. A slide 24 is secured to the inner face of the first jaw 16 by a screw (25) through an elongated slot in the slide. The slide 24 is movable by a finger grip 26 so that it can retain the staple against the head 18 when it is moved forward, the crown of the staple being seated in a recess 28 cut into the head. As the jaws are closed, the anvil depresses the cage relative to the head, exposing fully the ends of the staple and sets the staple as its ends penetrate through the tissues to be stapled (not shown). A cam 31 formed on the inner face of the second jaw 15 engages a camming surface (30) formed in the slide 24 as the jaws are closed causing the slide to move back from the head 18 and so releasing the staple. This embodiment allows staples to be inserted and set in tissues with the plane of the staple perpendicular to both the plane of the forceps and the plane of the slide 24. A second embodiment is generally similar to the first but is adapted to allow the staple to be set with its plane perpendicular to the retaining slide and parallel to the plane of the forceps.