baber/WOPTO huggingface dataset:
Patent GB-656295-A (GB)
IPC: H04W88/02
Abstract: 656,295. Selective control systems. RADIO CORPORATION OF AMERICA. July 23, 1948, No. 19778. Convention date, Aug. 20, 1947. [Class 40 (i)] [Also in Group XL (c)] A receiver for selective reception of signals including a control signal of higher frequency comprises a signal amplifier valve having a discharge tube control device in its space current path, the effect of the control device being responsive to the control signal frequency. The invention is applicable to selective calling arrangements in systems comprising a number of mobile radio receivers utilizing amplitude or frequency modulation, or in public address systems utilizing several loud-speakers. Fig. 1 shows a circuit which may be the audio frequency section of a radio receiver which is selective to a particular tone frequency, in which demodulated signals are applied to input terminals 1. The signals include the tone frequency which is above that of the audio bandwidth, and which is used to control the application of voltage to the anode-cathode circuit of the output valve 2. The signals are passed through low-pass filter 19, which rejects the control tone, to the grid of output valve 2, and also to the grid of one of a pair of triode valves 35. The anode cathode paths of valves 35 are connected in series. The output from anode 38 is connected via a frequency-responsive network T1 which has a high impedance at the particular tone frequency allocated to the receiver, to the grid of the second triode of pair 35, so that full negative feed-back is provided except at the tuned frequency of the filter T1. The output from anode 38 is therefore zero except when the incoming signals include the required tone frequency, and this is applied to the grid of thyratron valve 12. Valve 12 is connected in the D.C. cathode circuit of valve 2, a small A.C. voltage also being applied to this circuit by means of a transformer 9. When the control tone is applied to the grid of valve 12, this valve fires during each positive half-cycle supplied from transformer 9, which due to the effect of condenser 18 effectively completes the anode cathode circuit of valve 2 so that this valve conducts continuously to supply amplified signals to the loud-speaker or other device. When the tone frequency ceases, valve 12 ceases to conduct, as from the next negative half-cycle from transformer 9, thereby cutting off the supply circuit to valve 2 and muting the receiver output.
Patent GB-775614-A (GB)
IPC: C06F1/12
Abstract: 775,614. Filling match boxes. MATCHALL CO. AKTIEBOLAG. March 25, 1955 [March 25, 1954], No. 8836/55. Class 94(1). A device for feeding given numbers of matches into boxes comprises chambers K divided into compartments, each compartment housing a vertical column of horizontally laid matches, the base of each chamber being closed by a plate k movable relative to the chamber and carrying a separating member o which removes one or more matches from the bottom of each column and discharges them through an opening n in the plate k to a match box drawer or other receiver. The compartmentforming partitions comprise strips c raised and lowered by rods d, the ends of which rest on relatively moving cam surfaces e, to agitate the incoming matches. A series of chambers K may move on a conveyer chain over the plate k and may receive the output of a match making machine direct, the speed of the conveyer being controlled by means (not shown) responsive to the level of matches in the chambers. Alternatively the matches may be received from hoppers N into fixed chambers K, Fig. 8, the plate n reciprocating relative to the chambers and carrying a duplex separating member oa. The matches in the hoppers may be agitated by rotating square section rods O, the rods tapering to account for the differences in match section due to the match heads. The boxes or receivers may be vibrated to settle the matches.
Patent GB-2002862-A (GB)
Title: Hydromechanical transmission
IPC: F16H47/04
Filed: 1978-08-16
Abstract: A hydromechanical transmission comprises two sets of planetary gears P-1, P-2, a first carrier 42 being connected to a second ring gear 48 and a second carrier 47 being connected to a first ring gear 43. A variable hydrostatic transmission 20 is connected to a first sun gear 40. A clutch brake 60 holds the first carrier 42 against rotation in a first mode of operation. A clutch 63 connects an input shaft 11 to the first carrier 42 in a second mode. A further clutch 65 may be provided for connecting the input to a second sun 45 in a third mode. The hydrostatic transmission may be off-set with respect to or in line with the input shaft. Additional planetaries may be included to vary the performance. <IMAGE>
Patent GB-2004302-A (GB)
Title: Electrowinning of metals from sulphide ores
IPC: C25C1/00
Filed: 1978-09-12
Abstract: Process and apparatus for the electrowinning of metals e.g. Hg, As, Sb or Sn from sulphide ores wherein a sulphide ore is initially leached in a water soluble sulphide solution, alkali is then added, and the resulting solution is electrolysed so as to deposit metal at the cathode and obtain water soluble sulphide as a by-product. The process is particularly suitable for obtaining antimony from stibnite.
Patent GB-2030853-A (GB)
Title: A chair with adjustable foot rest
IPC: A47C7/50
Filed: 1978-09-21
Abstract: A chair, particularly a rotatable or swivel work chair, comprises a base (5), a supporting structure (2), a seat (3) mounted on the supporting structure, a support (6) which connects the supporting structure to the base and which is adjustable in length to raise and lower the seat in use with respect to the base, a telescopically extensible column (8) connected at one end to and depending from the supporting structure and axially slidably supported near its other end on the support, a cross-member (12) connected to the other end of the column and supporting positioning means (13), a foot support (7) connected to the positioning means for pivotable movement relative thereto about an axis which extends parallel to the cross-member for varying the inclination of the foot support and means (16-20, 24) for adjusting the inclination of the foot support and releasably fastening the foot support with respect to the positioning means. <IMAGE>
Patent GB-2007086-A (GB)
Title: Drawer construction
IPC: A47B88/14
Filed: 1978-10-04
Abstract: A drawer construction having corner connecting members 19 interconnecting side and back panels of the drawer, the side panels 10 being grooved to accommodate rails 11 incorporating stops 13 and on which the drawer can slide in an article of furniture, the corner connecting members having recesses 26 forming wider extensions of the side panel grooves, said recesses being of a width to allow guide means 12 on the rails 16 on the furniture to pass the stops within the recesses, by tilting of the drawer, to allow the drawer to be removed or replaced. <IMAGE>
Patent GB-2023543-A (GB)
Title: Collapsible Stacking Container
IPC: B65D21/02
Filed: 1978-11-03
Abstract: A stacking container comprises two separate substantially flat end panels (10) and a number of separate substantially flat side panels (14, 16, 18, 20) which extend between the end panels when the container is in its assembled state and are preferably joined to the latter by releasable rivets (22), the panels (10, 14, etc.) being made of a material, or materials, stronger and more rigid than cardboard (preferably synthetic plastics material). Interlocking means (34) are provided so that, when two such containers are stacked one on top of the other, their respective end panels or parts adjacent thereto releasably interlock. <IMAGE>
Patent GB-2037090-A (GB)
Title: Electrical machine with cryogenic cooling
IPC: H02K9/20
Filed: 1978-12-05
Abstract: An electrical machine with cryogenic cooling has a hollow rotor (3) filled with a coolant, the rotor (3) comprising a superconducting winding (10) with at least two supply leads (11, 12), and hollow end shafts (4, 5) which incorporate ducts (14, 19) for the outflow of coolant. The positive lead (11) is disposed in the cooling duct (14). The cooling ducts (14, 19) are coupled, via respective outlets (20, 22) for withdrawing the coolant from the rotor (3), with respective coolant collecting chambers (23, 24) at each end. There is a coolant inflow passage (17) in the end shaft (5) for feeding the coolant to the superconducting winding (10), which passage is connected to an inlet (18). There is a further coolant outflow passage (16) inside the end shaft (4) which communicates with the cavity of the rotor (3) and with the coolant collecting chamber (23) via an outlet (21), and negative lead (12) is disposed in this passage (16). Current-collecting means (13, 15) are disposed in the coolant collecting chamber (23), and are of the sliding or liquid-metal type. The outlets (20, 22) may utilize a centrifugal pumping effect by incorporating vanes or spiral passages Figs. 4-6 (not shown). The conductor (12) has a proportion of superconducting material that increases from zero at its outer end to 100% at the other end; it may now be porous with a branched end, Figs. 8, 9 (not shown). <IMAGE>
Patent GB-2015695-A (GB)
Title: Roller for web tensioning
IPC: B65H27/00
Filed: 1978-12-21
Abstract: A tensioning roller for web tens ioning, e.g. in rotary printing machines, includes a hollow cylinder (1) fixedly closed at one end (2) and closed at the other (5) by an axially displaceable piston (6). A resiliently deformable outer shell (11) is fixed at each end to the cylinder, so as to define with the cylinder an annular gap in communication with the interior of the cylinder by means of a number of passages (13) through the circumferential wall of the cylinder. The interior of the cylinder and the annular gap are filled with an incompressible pressure transmission medium (7), e.g. a gelatinous plastic mass, which on inward movement of the piston (6), forces the outer shell to expand and by increasing the diameter of the roller, in use increases the circumferential speed thereof. <IMAGE>
Patent GB-2011407-A (GB)
Title: 4-oxo-nitrogen bridgehead compounds
IPC: A61P25/20
Filed: 1978-12-28
Abstract: Nitrogen bridgehead compounds of the general formula (I> <IMAGE>  [wherein  R is H, alkyl or alkoxycarbonyl  R<1> is H or alkyl; or  R and R<1> together form -(CH=CH)2- R<2> is H, halogen, alkyl, phenyl or a 5- or 6-membered heterocyclic saturated ring, R<3> is H, optionally substituted phenyl, acyl, carboxy, alkoxycarbonyl -CN, carbamoyl, alkylcarbamoyl, alkyl, alkanoylcarbamoyl, acid- hydrazido, or -CO-NH-N=C (R<12> R<13>) (wherein R<12> and R<13>) are alkyl, carboxyalkyl, alkoxycarbonyl-alkyl or phenyl) or  R<2> and R<3> form -(CH2)t (t is 3 or 4> Z is oxygen and  n is 0, 1 or 2 and   a) if R<11> is H and R<9>-R<10> and R<7>-R<8> form chemical bonds then  R<4> is H or phenyl,  YR<5>R<6> represents oxygen or  Y represents nitrogen and R<5> is alkyl optionally substituted by hydroxy, carboxy or alkoxycarbonyl or phenyl optionally substituted by nitro, alkyl, alkoxycarbonyl and/or halogen; mono- or bi-cyclic nitrogen-containing heteroaryl, hydroxy aminothiocarbonyl, aminothiocarbonylamino or phenylamino, R<6> represents an unshared electron- pair, or H or alkyl, and in these two cases a salt is formed or R<5> and R<6> form -(CH2)p- (p is 4 or 5) and a salt is formed with N+ or b) if R<9> is H and R<10>-R<11> and R<8>-R<7> form chemical bonds, then R<4>, R<5>, R<6> and Y are as given under item (a); or   c) if R<8>-R<9> and R<10>-R<11> form chemical bonds, then  R<4> is H or phenyl,  YR<5>R<6>R<7> represents halogen, or YR<6>R<7> represents oxygen  and R<5> is H or alkyl; or YR<6>R<7> represents sulfur  and R<5> is cyano; or Y represents nitrogen and R<5> is alkyl optionally substituted by hydroxy, carboxy, or alkoxycarbonyl; phenyl optionally substituted by nitro, C1-4alkyl, alkoxycarbonyl and/or halogen; or mono- or bicyclic nitrogen containing heteroaryl,  R<6> is H or alkyl, or  R<4> and R<6> form -(CH2)m- (m is 3 or 4) or  R<5> and R<6> form -(CH2)p- (p is 4 or 5) and R<7> represents an unshared pair of electrons] and the tautomers and salts thereof.   The novel compounds possess physiological activity.
Patent GB-2012250-A (GB)
Title: Non-refillable fitment closure
IPC: B65D51/18
Filed: 1979-01-08
Abstract: A closure for the neck of a container comprises a non-refillable fitment 1 having a one-way valve seated in the neck and retained therein by an external cowl 8 acting on an annular flange of the fitment and being engaged in an annular groove 9 or beneath an annular bead on the neck, the outlet end of the fitment being closed by a closure cap 4, the closure cap and the cowl being covered by a second closure 20 comprising a thin-gauge metal shell having a skirt 22 with a circumferential line of weakness 25 provided by spaced slots and bridges, each slot having an upper lip 26 and a lower lip 27, the lower end of the skirt of said shell being rolled or crimped beneath an annular bead 10 on the container neck, and at least some of the lower lips 27 of said slots being deformed towards the axis of the shell to overlie parts of the cowl acting on the annular flange of said fitment. With this arrangement skirt 22 does not slip down the container neck when upper part 21 of the shell is removed. <IMAGE>
Patent GB-2014291-A (GB)
Title: Apparatus for Controlling the Distance Setting of the Headlamps of Motor Vehicles
IPC: B60Q1/105
Filed: 1979-01-15
Abstract: An apparatus for controlling the distance setting of motor vehicle headlamps comprises a hydraulic sensing circuit (15-20) that responds to changes of position between the vehicle body and one or more road wheel axles, and hydraulic positioning means circuits (5-14) that actuate the displacement of the headlamps. The circuits are separate from each other and are interconnected through a piston-and- cylinder arrangement (11-16) where members (13-15) sealed from both circuits transmit movements between the circuits. Said arrangement has a housing comprising first and second parts (22, 23 and 27, 28) secured to the respective hydraulic circuits, one housing part containing the transmitting members (13-15) and the other part having a sealing diaphragm (29) for its associated circuit. The housing parts are releasably coupled together to provide a detachable interconnection through which the sensing and positioning means circuits can influence each other. <IMAGE>
Patent GB-2020562-A (GB)
Title: Drainage nozzles in filter bed
IPC: B01D29/88
Filed: 1979-01-19
Abstract: A filter bed 4 rests on base 3, and filtrate is removed by drainage nozzles 8 which extend downwards from drainage pipe 6 to rest directly or indirectly on base 3. The 'dead space' of the bed which exists with upwardly extending nozzles is thus eliminated, and there is no danger of nozzles being detached from the pipe by backwashing pressures. The nozzles comprise spaced plates 10 on spigots 13 which screw into respective nuts 24, which are prevented from rotating by their engagement with a common channel 19 inside pipe 6. <IMAGE>
Patent GB-2017409-A (GB)
Title: Light-emitting diode
IPC: H01L33/00
Filed: 1979-04-20
Abstract: A diode which emits white light when reverse-biassed consists of a semiconductor bearing a thick layer of semiconductor oxide (e.g. gallium arsenide oxide and/or alumina). On top of that is a metal (e.g. indium) contact pad. The light appears as a halo around the contact. A second contact on the oxide layer may be used in place of a direct connection to the semiconductor body.
Patent GB-2022706-A (GB)
Title: Improvements in or relating to methods of manufacturing gas-filled containers for silencing of fluids subjected to pressure pulsation and to devices for silencing sound-generating media subject to pressure pulsations
IPC: B29C49/04
Filed: 1979-05-25
Abstract: Gas-filled containers 1 of a plastics material for use as silencers in fluid systems by damping of pressure pulsations of the fluid are manufactured by a blow-moulding operation. A wide choice of the shape of the containers is possible as they are formed whilst the plastics material is in its non-cooled state and the resultant silencer devices are adaptable for location at any point in a system where space is available especially at the suction and/or pressure side of a fuel feed pump or at the inlet and/or outlet of a fuel filter. In a first blow moulding method two plastics films are extruded through a double flat nozzle, the films then being pressed together by laterally advanced mould parts while inflating the films to abut against the mould parts. With the second method a flexible plastics tube is extruded through an annular nozzle, the ends then being pinched off and welded to produce a cushion-shaped container. <IMAGE>
Patent GB-2049715-A (GB)
Title: Method of Producing an Unsaturated Polyester Resin
IPC: C08G63/676
Filed: 1979-05-25
Abstract: A method for producing an unsaturated polyester resin from a mixture of glycols and glycol terephthalate oligomers recovered from a waste stream from the production of polyethylene terephthalate, said method comprising the steps of:   (a) forming a blend of said mixture with an aliphatic polyhydric alcohol or ether alcohol,   (b) transesterifying said blend, and (c) polyesterifying the transesterified blend with an ethylenically unsaturated dicarboxylic acid. a
Patent GB-2049788-A (GB)
Title: Cylinder Lock
IPC: E05B19/00
Filed: 1979-05-29
Abstract: A cylinder lock has a stator possessing a circular shaped head 3 elongated into a side tail 4, and in the stator circular head, there is a symmetrically centred rotor cylinder 2 which is provided with a circular cross section key hole 5 whose longitudinal axis is offset 27 with respect to the stator and rotor longitudinal axes, the stator and rotor, being fitted with a row of main tumblers whose ends protrude into the inside of the shape of the key, and with auxiliary tumblers placed at an angle to the axis of the main tumbler, and radially with respect to the stator and the rotor, where the prolongations of the axes from said angularly positioned tumblers intersect with the central axis of the stator and the rotor, and are therefore offset with respect to the circular hole wherein the key is inserted. <IMAGE>
Patent GB-2028760-A (GB)
Title: Assembly of a tractor, a distributing device and a lifting device
IPC: B66C23/44
Filed: 1979-08-16
Abstract: An assembly of a tractor (1), a distributing hopper (5) and a lifting device for lifting a sack (6) of e.g. granular fertilizer on to the hopper is disclosed. The lifting device comprises an arm (10) mounted pivotally on the rear of the tractor having an extensible portion (19) to which a sack of fertilizer (6) may be attached. <IMAGE>
Patent GB-2058949-A (GB)
Title: Fluid pressure supply system
IPC: B23Q1/00
Filed: 1979-09-13
Abstract: A fluid supply system for supplying fluid under pressure to the moving components of a machine, for example a multi-spindle machine tool, comprises a self-sealing fluid coupling having two parts 4, 5, the former being provided on a moving member of the machine, the latter on a fixed member. A regulated fluid pressure supply (not shown) is connected to part 5. In the embodiment illustrated the moving part has four pre-load bearing assemblies 2 with identical coupling parts 4, and indexes around so that, when halted, one of the coupling parts 4 is aligned with the coupling part 5 which is caused to come into sealing engagement with the respective part 4. A pressure reservoir 6 is provided for maintaining the pressure in the fluid circuit whilst the coupling 4/5 is not engaged. In another embodiment, Fig. 3 (not shown), each pre-load bearing assembly 2 has a coupling part 4 and a pressure reservoir 6, and four coupling parts 5 are provided. <IMAGE>
Patent GB-2059078-A (GB)
Title: Improvements in or relating to phase sequence indicators
IPC: G01R29/18
Filed: 1979-09-13
Abstract: A three phase signal sequence indicator comprising respective pulse formers responsive to the lines of a three phase signal the sequence of which it is required to indicate for forming corresponding pulse waveforms which are provided, one for each phase to a logic circuit responsive to the pulse waveforms for providing control signals to operate an indicator in dependence upon the phase sequence of the three phase signal whereby the sequence is indicated. <IMAGE>
Patent GB-2034267-A (GB)
Title: Device for Towing by an Aircraft
IPC: F41J9/10
Filed: 1979-09-24
Abstract: An aircraft towed target sleeve (Fig. 3) has a tubular-sleeve part (2) at the rear end of which is attached a spoiler (11) in the form of an annulus having a cylindrical part (13) attached to the sleeve part (2) and a radially extending flange part (14) which extends into the airflow (S) and acts as a spoiler edge, to prevent flutter of the target sleeve at high towing speeds. A modification, (Fig. 6) also has an internal spoiler (23'). In another form, the spoiler is a frusto- conical member (Fig. 5, not shown). An aircraft towed target flag (Fig. 7, not shown) has a T-section spoiler secured to the flag trailing edge. <IMAGE>
Patent GB-794220-A (GB)
Abstract: 794,220. Typewriter-accounting machine combinations. CHARY, R., and ESCOFFIER, L. C. Jan. 4, 1956 [Jan. 6, 1955; July 20, 1955], No. 323/56. Class 100(4) [Also in Group XIX] In a typewriter-acounting machine combination, a typewriter 23 is adapted to print upon the platen 26 of an accounting machine 22, its frame is mounted for letter spacing movement over a common base plate 20 and its type characters 16 are inclined relatively to the type levers 15 to suit the higher position of the accounting machine platen. As shown, the typewriter frame travels along rails 27 and 28, secured to the base 20, under the control of conventional escapement mechanism 33, the rack 29 of which is rigid with the base 20. After the typewriter has completed a forward travel in the direction of arrow A it is returned automatically to its initial point by subsequent forward travel (arrow C) of the accounting machine carriage 25. For this purpose, the carriage 25 has a stud 41 which engages behind a spring-actuated lever 36 pivoted to the typewriter, so carrying the typewriter back to its initial point. When this is reached, a stationary stop 34 rocks the lever 36 clear of the stud 41 so that the typewriter is freed for operation in its forward direction A. The position of the stop 34 is adjustable.
Patent GB-2066464-A (GB)
Title: Image Converter Arrangements
IPC: H01J29/39
Filed: 1979-12-21
Abstract: An image converter tube or device includes an area detector (100), a body of semi-conductive material (120) disposed close to the detector and, formed in said body, an array of field-effect transistors with their source (140) and drain (130) regions exposed at the surface of said body adjacent said detector. The source regions (140) are also exposed at the surface of the body remote from said detector, and the gate regions of the transistors are constituted by respective regions of said detector in the vicinity of each pair of source and drain regions formed in said body. <IMAGE>
Patent GB-2040744-A (GB)
Title: Sharpener for pointed objects
IPC: B24D15/06
Filed: 1980-01-15
Abstract: A sharpener for a pointed end 25 of circular cross section, and in particular a dart point, comprises an abrasive block 21 moulded into a plastics block 20. A hole in the block 20 has a cylindrical portion 24 for closely receiving a cylindrical part of the pointed end 25, and a tapered portion 26. The block 21 has a surface tangential to a desired conical point on the end 25, so that rotation of the latter effects sharpening. The block 20 is preferably provided with three holes 24, 26 in which three darts may be simultaneously located. In another embodiment, the tapered portion of the hole is formed in an abrasive block, and the cylindrical portion is formed in a piece of resilient plastics material secured to the block. <IMAGE>