baber/WOPTO huggingface dataset:
Patent GB-725216-A (GB)
Title: Automatic radio ranging system
IPC: G01S13/70
Filed: 1953-05-18
Abstract: 725,216. Radar. BENDIX AVIATION CORPORATION. May 18, 1953 [May 28, 1952], No. 13928/53. Class 40 (7). A pulse radar system receiver is provided with a searching and automatic following range gate strobe. Means generating a gating wave delayed after the trigger pulses in accordance with the value of a control signal are arranged in the receiver circuit. The control signal is generated by means alternately operable to change its value in one direction in response to each trigger pulse and in the opposite direction in response to the coincidence of an echo signal and the gating wave, means are also provided for restoring the control signal to its initial value when it reaches a predetermined limit of variation. In one embodiment echo pulses from radar receiver 11 are fed to a general visual indicator 26 and to coincidence circuit 13. Circuit 13 is also fed with a gate pulse 161 occurring at a time determined by the rear edge of waveform 15<SP>1</SP> whose front edge corresponds to a trigger pulse fed over line 12 and the position of whose rear edge is determined by the control potential fed to generating unit 15 over line 22. The trigger pulses are also fed over line 10 to bi-stable multivibrator circuit 14 to cut-off or maintain cut-off the left-hand valve so that the high potential at the point 18 charges capacitor 21 through resistor 19. This increases the potential on line 22 and causes the gate pulse 16<SP>1</SP> to move outwards in the direction of increasing range. If pulse 16<SP>1</SP> moves into coincidence with a received echo a negative pulse is fed over line 17 to change over the multivibrator and reduce the charge on capacitor 21, thus causing the gate to drop back until driven into coincidence again by the arrival of a further trigger pulse or further pulses over line 10. The peak control potential is representative of range and may be indicated at 25. If the gate sweeps through the whole effective range without finding an echo signal the control potential reaches a level at which gas tube 23 discharges and returns the gate to zero for a further sweep. Normally the gate or strobe locks on the first echo it reaches, i.e. that from the nearest object, but by the operation of switch 20 shorting out the coincidence pulses applied to the multivibrator it may be allowed to pass to and lock on an echo signal corresponding to a more distant object. Instead of using a bi-stable multivibrator circuit 14 an astable multivibrator having a suitable time constant may be used.
Patent GB-1482282-A (GB)
Title: Heart pacer
IPC: A61N1/375
Filed: 1974-06-25
Abstract: 1482282 Implants CORATOMIC INC 25 June 1974 [12 July 1973 (2)] 13951/76 Divided out of 1482281 Heading A5R A heart pacer for implantation in the chest of a host comprises a power supply unit and circuitry for generating pacer pulses surrounded by a casing the outer surface of which, except where the heart lead is connected, is free of sharp ends and corners and has a three-dimensional curvature throughout. As described the casing, shown in two mutually perpendicular sections in Figs. 2 and 3, consists of a pure titanium shell 43, on which are mounted a terminal block 275 and suture boot 283, about which epoxy resin 50 is moulded to lie flush with upstanding part 51 which is earthed by engagement with the rib cage or skin when implanted between them. The subject matter of the Specification is included in the Parent Specification 1482281, from which the present application has been divided. That Specification also gives details of a nuclear-heated thermopile power unit and pulse generating circuitry.
Patent GB-373392-A (GB)
Title: Improvements in or relating to means for energising electromagnets
IPC: H01F7/20
Filed: 1931-05-12
Abstract: 373,392. Loud - speakers. LEISSER, V., Langenlois, Lower Austria. May 12, 1931, No. 14051. Convention date, June 6, 1930. [Class 40 (iv).] The field magnets of loud-speakers are supplied with current from a thermo-couple the hot junction of which is heated catalytically. As shown in plan in Fig. 1, the magnet winding ccnsists of a copper band 2 the ends of which are connected to metal rods 3, 4 which are connected by a conductor 8 of copper nickel alloy. The rod 3 is immersed in a cooling liquid while the rod 4 is embedded in spongy platinum or other catalyst in a vessel 6 to which benzine or other vapour is supplied from a reservoir 12 by means of wicks 15.
Patent GB-403623-A (GB)
IPC: C10B33/00
Filed: 1932-05-17
Abstract: 403,623. Discharging vertical retorts. McLUSKY, W. B., Heath Lodge, Skircoat Green Road, Halifax, Yorkshire. May 17,1932, No. 14056. [Class 51 (ii).] In apparatus for quenching and conveying away coke discharged from vertical retorts b, of the kind comprising a trough c supplied with water at e and fitted with an endless conveyer l, the retort mouthpieces a, which are sealed in the water, deliver into lateral pockets u, Fig. 2, in order that eddies may be formed in the water stream to assist the movement of the coke away from the mouthpieces into the line of the conveyer. The coke carried along by the upper run of the conveyer l is delivered to a sump g from which it is raised by a conveyer h to a screen o by which it is graded and loaded into trucks p. The heavier material which sinks in the water is carried in the opposite direction by the lower run of the conveyer l and delivered to a container q. In the modification shown in Fig. 5, in which retorts of elliptical section discharge into similarly shaped lateral pockets in the trough c, the lighter and heavier particles are carried away together by the upper run of the conveyer l, separation being effected by a screen w through which the heavier particles fall on to a transverse discharge conveyer y.
Patent GB-1059811-A (GB)
Title: Novel processes for the preparation of colchicine compounds, and the compounds thus prepared
IPC: C07C49/755
Filed: 1964-04-06
Abstract: The invention comprises compounds of formulae VI, VII and VIII, in which X1, X2 and X3 are alkoxy (e.g. methoxy), R1 is H or acyl (e.g. benzoyl) and R11CO is acyl (e.g. benzoyl). Compounds VI (R1 = H) are prepared by reacting the cyanoesters III with an alkaline cyclizing agent such as K (metal) and are converted to VI (R1 = acyl) by reaction with an acylating <FORM:1059811/C2/1> <FORM:1059811/C2/2> <FORM:1059811/C2/3> <FORM:1059811/C2/4> <FORM:1059811/C2/5> agent such as PhCOCl; compounds VI (R1 = acyl) are hydrolysed with alkali, e.g. NaOH or KOH to VII, of which the alkali-metal (e.g. Na) derivative may be reacted with an acyl peroxide, e.g. (PhCO2)2, to give VIII which in turn may be hydrolysed to IX with weak alkali, e.g. NaHCO3.
Patent GB-1332972-A (GB)
Title: Lip type seal
IPC: F16J15/32
Filed: 1971-05-11
Abstract: 1332972 Rotary shaft seals BORG-WARNER CORP 11 May 1971 [12 June 1970] 14289/71 Heading F2B In a lip seal comprising a resilient body 12 for sealing engagement with a housing and a sealing lip 16 with a surface 22 for sealing contact with a rotary shaft, the lip includes a non- woven mat 21 of randomly disposed interconnected fibres 21a of a polymer impregnated with an oleophobic synthetic elastomer, the fibres being partially exposed at the contact surface 22. The fibres 21a may be of P.T.F.E., polyamide or polyester impregnated with oleophobic silicone rubber. The body 12, which may be a split-ring or formed in two halves, is of synthetic rubber reinforced by a metal insert 20 and has a groove 13 for mounting on a housing flange.
Patent GB-1191202-A (GB)
Title: Method of Producing Cam Shafts and Cam Shafts Produced by Such Method
IPC: B22D19/00
Filed: 1968-03-25
Abstract: 1,191,202. Making cam-shafts; casting processes. NIPPON PISTON RING CO. Ltd. 25 March, 1968 [1 April, 1967], No. 14306/68. Headings B3A and B3F. [Also in Divisions C7 and F2] A cam-shaft 1 has an axial oilway and bores 4 leading from the oilway to the cam surface to effect surface lubrication. A core assembly 5 comprising a solid steel rod 6 completely coated with a substance of low heat conductivity 7, e.g. resin, and closely fitted within a polished mild steel tube 3 is placed in a shell or sand mould. An alloy steel is poured at 1310‹ to 1350‹ C. into the mould. Preferably the mild steel tube 3 is coated with copper to ensure its adhesion to the cast alloy. The steel rod 6 is removed from the casting, the heat-decomposed layer 7 facilitating this removal. The mild steel tube then forms the oilway and acts as a reinforcing insert. The bores 4 are drilled from the surface to the oilway.
Patent GB-590939-A (GB)
Title: Improvements in or relating to methods of and apparatus for moulding walls from concrete and the like
IPC: E04G11/22
Filed: 1939-05-13
Abstract: 590,939. Casting concrete walls &c. in situ. BRYDON, N. E. M. May 13, 1939, No. 14347. [Class 20 (ii)] A plurality of superimposed shuttering sections 6 are retained in position by a yoke 8; when the wall has been cast to a predetermined height the yoke is moved upwards relative to the shuttering, to free the lowermost section thereof, and another section of shuttering is added at the top. The yoke 8 has a slideable crosshead 9 carrying a screw 13 on which is a manually operable nut 14. The nut bears on a beam 15 which has hinged legs 16. To raise the crosshead, and the yoke therewith, the legs 16 are placed on top of the wall, as shown, in dotted lines, and the nut operated. The lowest section of shuttering is thus freed and can be removed and re-used higher up. Before casting the next course, the nut 14 and legs 16 are moved up to the positions shown in full and chain-dotted lines, the legs resting on top of the shuttering. The yoke is held in position during this operation by friction with the shuttering, and the yoke and crosshead may be detachably interconnected by pins passed through the holes 18. The yoke may be adjustable in width, to facilitate sliding over the shuttering and to allow for different wall thicknesses. The crosshead may carry a core 12, or supplementary formwork, to allow of casting a cavity wall or one faced with different material from that forming the main portion. Such a form may be placed against the outer wall of the mould and used to produce fluting &c. on the outer side of the wall. The crosshead may have a downward extension 9a carrying a working platform 10, which platform may be used to support shuttering for a floor. A plurality of yokes are normally used in line. The shuttering sections may be interconnected, horizontally and vertically. The invention may be applied to the construction of chimneys, columns &c.
Patent GB-963971-A (GB)
Title: Injection moulding machines
Inventor: VINES ALAN
IPC: B29C45/64
Filed: 1959-07-27
Abstract: 963,971. Injection - moulding machines. FAIREY ENGINEERING Ltd. July 27, 1960 [April 27, 1959], No. 14374/59. Heading B5A. A mould closing apparatus comprises a plate 10 fixed to a base 11, a platen 12 reciprocable by a piston/cylinder unit 16, 17, auxiliary jacks 27, 28 to connect the platens with clamping units 20, and piston/cylinder units 38, 37 operable to rotate cranks 40 and turn eccentric pins 43 to apply the final clamping pressure to the platens and the mould halves therebetween. The piston/cylinder unit 16, 17 moves the platen 12 carrying one mould half towards the platen 10 carrying the other mould half, the jacks 27, 28 locate clamping rods 23 in slots 22 in platen 12, and the fans clamping nuts 29 and locking screws 32 are tightened. The central part of each pin 43 to which each crank 40 is splined and the parts 44 which form a bearing for each rod 23 are coaxial on an axis 47 and the portions 45 of each pin are on an axis 46 and form a bearing for members 50 which are connected to the platen 10 so that actuation of units 38, 37 moves the axis 47 and hence rods 23 to the left and provides the final clamping pressure. Each clamping unit 20 may be provided with a strain gauge having an automatic or manual cut-out.
Patent GB-832750-A (GB)
Title: Improvements in or relating to garden tools
IPC: A01D34/08
Filed: 1955-05-18
Abstract: 832,750. Hedge-cutters ; mowing machines. WRIGHT, E. J., KAYE, E., and SHARP, J. R. May 15, 1956 [May 18, 1955], No. 14397/55. Classes 6(2) and 6(3). [Also in Group XXIV] A hedge-cutter, for attachment to the mechanical cultivator described in Specification 803,111, comprises a driving spindle 35 for coupling to the cultivator motor, two camoperated cable transmission elements 49, 50 moving in opposite phase and being long and flexible enough to convey movement to the tool-head, Fig. 4, which has a reciprocable blade 60 operated by the two elements. The drive from the cultivator motor 18 is taken by a belt 122 to a vertical shaft 19 which drives the rotor shaft 21, the rotor being replaced by two wheels 23 which rotate idly. A belt 137 connects the shaft 19 with the spindle 35 which is carried by a boss 34 mounted on a housing formed by two plates 24, 25 spaced apart by blocks 26, 27, 28 and secured to the cultivator chassis 11 by a bracket 32. The shaft 35 carries a cam 36 which co-acts with rollers carried by pivoted bell-cranks 39, 40 (see Group XXIV) to transmit motion to two spring-loaded plungers 47, 48 secured to the ends of Bowden cables 49 50, the remote ends 69, 71 of the cables being pivoted to a rocking lever 70 attached to the moving blade 60 of the hedge-cutter, the moving blade being slotted at 61, 62 and being held in contact with the fixed blade 57, 58 by a guard 67 which is bolted to the fixed blade through the slots 61, 62.
Patent GB-752017-A (GB)
Title: Improvements in and relating to cushioning devices for braking systems
IPC: B66B5/26
Filed: 1954-05-17
Abstract: 752,017. Lift catch gear. WERKSPOOR N. V. May 17, 1954 [July 4, 1953], No. 14469/54. Class 78 (3). Catch gear for a lift consists of a member 3 which is locked to guides 1 by catches 4 when cable 5 runs slack, and a pair of strips 10 of deformable material, e.g. mild steel, which are normally retained between a pair of converging walls 9 on the cage but which are extended to the position shown, so gradually bringing the cage to rest, when member 3 is locked to the guides. The convergence of walls 9 produces a braking force which increases as the strips are extended. The walls may be provided with strip supporting grooves as described in Specification 750,751.
Patent GB-393079-A (GB)
Title: Improvements in or relating to processes and devices for the loosening of tobacco
IPC: A24B3/06
Filed: 1932-05-21
Abstract: 393,079. Loosening tobacco. QUESTER, E., 141, W³llnerstrasse, Lindenthal, Cologne, Germany. May 21, 1932, No. 14481. Convention date, May 21, 1931. [Class 130.] Tobacco leaves or fibres are loosened by conveying them by means of one or more rotating cones h against the walls of one or more oppositely rotating funnels b, which may be provided with spiral guide ribs k. As shown, a number of cones h and funnels bare located axially in a housing a to and from which the tobacco is fed through funnels i, l. The shaft g of the cones h is driven by means of a pulley f, and the housing a carrying the funnels b is driven by means of a pulley c and guided by rollers d, e. The inclination of the surfaces of the cones and funnels relatively to their axis may be greater in the lower part of the device than in the upper part.
Patent GB-528824-A (GB)
Title: An improved electrical connecting device
IPC: H01R13/621
Filed: 1939-05-15
Abstract: 528,824. Two-part couplings. BENDIX. AVIATION CORPORATION. May 15, 1939, No. 14523. Convention date, May 16, 1938. [Class 38 (i)] A multiple-contact coupling has the contacts 14, 40 removably mounted in a pair of insulating members 9, 35 within screw shells 3, 4 one of the insulating members 9 being rotatable in its shell 4 to allow the shells to be screwed together. The member 9 is retained in the shell 4 by a spring ring 33 engaging a flange 10 on the member 9. The other member 35 is fixed in its shell by clamping a flange 37 on the member between two parts 5, 6 of the shell which screw together. The contacts are longitudinally extending blades 14, 40 lying in channels 13, 38 in the surface of the members 9, 35, the contacts 14 having a bent portion 16 that is clamped by a disc 20 bolted to the member 9, and the contacts 40 being bent to clip over projections 46, 47 and being clamped by a disc 48. Correct coupling is ensured by a tongue or projection at one side of the member 9 engage a groove in the member 35 that is wider or deeper than the channels containing the contacts. The contacts are readily removable so that they can be varied in number and the leads can be connected thereto before assembly.
Patent GB-1034674-A (GB)
Title: Thermally-stable silicon compounds
Inventor: MILLWARD BRIAN BEARD
IPC: C07F7/18
Filed: 1963-04-11
Abstract: Compositions useful as hydraulic fluids, heat-transfer media and lubricants comprise a fluorine-containing silane of the formula ArxSi(OR)4-  x where Ar is an aryl or substituted aryl group, each OR is an aliphatic-oxy group at least one of which contains fluorine and at least one of which contains 6 or more carbon atoms, and x is 1, 2 or 3.  The preferred fluorine-containing groups are of the formula -OCH2(CF2)nCF2X where n is for example up to 9 and X is H or F. The compounds may be used singly, in admixture with each other or with additives, e.g. diphenyl, diphenyl ether and tetraphenyl orthosilicate.ALSO:The invention comprises fluorine-containing silanes of the formula ArxSi(OR)4- x where Ar is an aryl or substituted aryl group, each OR is an aliphatic-oxy group at least one of which contains fluorine and at least one of which contains 6 or more carbon atoms, and x is 1, 2 or 3.  They are prepared by reacting a fluoro-alcohol with an aryl halosilane, preferably in the presence of a hydrogen halide acceptor. The preferred fluoro-containing groups are of the formula -OCH2(CF2)nCF2X where n is 1 or more and X is H or F.  Suitable aryl groups are phenyl, naphthyl, fluoro-phenyl and fluoronaphthyl, and they may contain further substituents, e.g. chlorine, alkyl etc.  The aliphaticoxy groups include cycloalkoxy and aralkoxy in addition to alkoxy.  The compounds described are phenyltri-, diphenyldi- and triphenyl (1H,1H,7H-dodecafluoro-n-heptyloxy)silane, diphenyl di(1H,1H-pentadecafluoro-n-octyloxy)-silane, and phenyl tri- and diphenyl di-(1H,1H,9H-hexadecafluoro-n-nonyloxy)silane. Phenyl di(1H,1H,7H-dodecafluoro-n-heptyloxy) (n-octyloxy)silane is also mentioned.  Uses.-Lubricant, heat-transfer medium, hydraulic fluid.
Patent GB-958138-A (GB)
Title: Improvements in or relating to clutches controlled by heat responsive means
Inventor: BARRATT AUBREY
IPC: F16D43/25
Filed: 1961-04-21
Abstract: 958,138. Friction clutches. S. SMITH & SONS (ENGLAND) Ltd. July 23, 1962 [April 21, 1961], No. 14596/61. Heading F2C. [Also in Division G1] A spring-released temperature-responsive friction clutch between a freely mounted internal combustion engine cooling fan 24 and its driving pulley 15, fast with a shaft 12, is controlled by a flexible diaphragm 40 of a wax-filled casing 39 located at the end of the shaft 12 in the engine coolant radiator airstream and is engaged when increasing temperature melts and expands the wax 45 forcing the diaphragm 40 to thrust axially through a channel section plate 35 and spring washer 37, a presser plate 36 which clamps the fan 24 against the pulley 15. The plate 35 is slidably keyed on axial pins 48 which link the presser plate 36 to a plate 34 slidably keyed on a hub 38 fast with the shaft 12, the clutch being disengaged by a spring washer 46 reacting on the plate 34 to retract the presser plate 36. The diaphragm 40 is of Nitryl rubber reinforced with nylon fabric and is secured between a plate 41 and casing 39 peened on the hub 38.
Patent GB-699081-A (GB)
Title: Improvements in or relating to radiation level indicating circuits for use in conjunction with a radioactive source
Inventor: COOKE-YARBOROUGH EDMUND HARRY
IPC: G01T1/18
Filed: 1950-06-13
Abstract: 699,081. Control circuits utilizing radiation. NATIONAL RESEARCH DEVELOPMENT CORPORATION. June 13, 1951 [June 13, 1950], No. 14691/50. Class 40 (iii). [Also in Group XL (c)] A circuit for use in the automatic filling of cartons in which the filled cartons pass on a belt in a continuous sequence between a radioactive source and a Geiger-Muller counter tube comprises a relay circuit as shown in the Figure. Relay contacts 18 are operated when the rate of pulses produced from the self-quenching Geiger- Muller counter 12, 13 exceeds a predetermined value. The electrode 13 of the counter is energized from the A.C. supply across terminals 9 via the voltage multiplier network 14. Halfwave rectified A.C. is derived from rectifier 6 and applied across the cold-cathode gas-filled tube 1 which fires when a pulse on the counter electrode 12 coincides with peak supply voltage across it. The current flow through the tube 1 is averaged by the integrating network 4, 5 and relay coil 3 is energized to operate contacts 18 if the pulse repetition rate exceeds a given value. An unfilled or partly-filled carton allows radiation to fall on the counter at such a rate that the relay operates to sound an alarm. In a modification a photo-electric cell is also illuminated from a light source passing across the conveyer belt so that if there is a discontinuity in the sequence of cartons passing along the belt the trigger electrode of the tube 1 is held negative to prevent operation of the relay. In a further modification, Fig. 2 (not shown), for use with a non-self-quenching G.M. counter tube the tube is quenched by reducing the supply voltage across it once per cycle. Specification 699,129 is referred to.
Patent GB-1070900-A (GB)
Title: Casino and club type game of chance requiring forecast bets on winning aces and winning track
IPC: A63F3/00
Filed: 1966-04-02
Abstract: 1,070,900. Games of chance. H. H. PLATT. April 2, 1966. No. 14731/66. Heading A6H. Apparatus for use in a game of chance comprises the playing area shown, staking panels, a pack of 26 cards, 13 having the number 1 on a yellow ground and 13 having the number 1 on a green ground, 2 markers to indicate movement up the tracks and 4 discs to cover the ace symbols at the head of the playing area. The colour code in the figure is a red, b yellow, c green and d black. In play a marker is placed in the start position of each track, the cards are shuffled and placed in the action area. The banker turns the cards in sequence and moves the marker, up the tracks by one position for each appropriate card. The game ends when one marker reaches the top position. Before the game, players place bets with the banker that the two markers will coincide at one or more of the ace positions. A disc being placed over the symbol at the head of the playing area when this occurs. Various betting combinations are described.