baber/WOPTO huggingface dataset:
Patent GB-1443239-A (GB)
Title: Constant-voltage circuits
IPC: H03F3/45
Filed: 1973-09-13
Abstract: 1443239 Automatic voltage regulation HITACHI Ltd 13 Sept 1973 [4 Oct 1972]  43046/73 Heading G3X [Also in Division H3-5]  A constant voltage circuit compresses a transistor with a voltage compensating forward biased dioxide means having one end connected to its collector, a biasing element with a non-linear voltage current characteristic connected between the other end of and the base of the transistor, and resistive means connected between base and emitter for supplying a constant current through the biasing element, a constant voltage being derived across emitter and collector of the transistor when a supply voltage is applied across the junction between the diode means biasing element and the junction between the emitter and resistance means. In one embodiment, the arrangement is used to bias the output stage of an amplifier [see Divisions H3-5]: a constant voltage drop is provided by the constant voltage circuit CVC, Fig. 1. Circuit CVC comprises transistor Q9 in series with diode-connected compensating transistor Q10, the base bias of transistor Q9 being derived from resistor R4 and Darlington-connected transistors Q11, Q12, Q13 in which transistor Q11 is strapped as a diode. In a modification, the Darlington-connected biasing transistors are replaced by three series-connected transistors each of which is strapped as a diode Fig. 5 (not shown): a further modification provides the constant voltage from a transistor of the opposite conductivity type Fig. 4 (not shown). In a second amplifier circuit the constant voltage network CVC, Fig. 3, which provides emitter bias for a phase-reverser Q16, the transistor Q9 is biased from the transistor Q13 which has diode-connected transistors Q12, Q15 as the source of base bias. In a further embodiment, transistor Q33 is biased from the voltage drop across transistor Q38 which forms with transistor Q37 a Darlington pair; a corresponding pair of transistors Q35, Q36 forms the compensating circuit. Base bias for transistor Q37 is provided by the diodeconnected transistors Q39, Q40: in a modification, these are replaced by Zener diodes Fig. 7 (not shown).
Patent GB-1098103-A (GB)
Title: Improvements in or relating to steroid compounds
IPC: C07D221/16
Filed: 1965-10-11
Abstract: Novel compounds of the general formulae <FORM:1098103/C2/1> wherein R is a hydrogen atom or an alkanoyl radical containing from 2-7 carbon atoms; X is a hydrogen atom or an alkyl radical containing 1-6 carbon atoms; and R1 is a hydrogen atom, an alkyl radical containing 1-6 carbon atoms or an alkanoyl radical containing from 2-7 carbon atoms are obtained by the reduction of a compound of the general formula <FORM:1098103/C2/2> wherein R, X and R1 have the meanings above, with lithium aluminium hydride or hydrogen utilized in the presence of elevated pressure.
Patent GB-1128921-A (GB)
Title: Disposal of wool rinsings
Inventor: YAJIMA YUKIO
IPC: C02F9/00
Filed: 1965-10-11
Abstract: 1,128,921. Disposing of waste waters; fertilizers. KANEMATSU WOOLLEN MILLS Ltd., and TAKUMA BOILER MFG. CO. Ltd. 11 Oct., 1965 [10 Oct., 1964], No. 43078/65. Headings C1B and C1C. [Also in Division C5] Wool rinsing water is purified before disposal by acidifying to pH 3-4 with a mineral acid, subjecting the acidified mixture to mechanical or air agitation to separate sludge and waste water, the sludge being separated by means of a horizontal centrifugal separator into coagulated matter and further waste water, the waste water and further waste water are neutralized and allowed to stand, and the supernatant liquid separated for disposal after air exposure and sterilization. The coagulated matter is further treated to recover wool fat (see Division C5), the residue being utilizable as a fertilizer.
Patent GB-994689-A (GB)
Title: Automatic adjusting device
Inventor: HODKINSON HAROLD
IPC: F16D65/56
Filed: 1960-12-16
Abstract: 994,689. Brakes; automatically compensating for wear. DUNLOP RUBBER CO. Ltd. Nov. 29, 1961 [Dec. 16, 1960], No. 43344/60. Heading F2E. A device for automatic compensation for wear of friction brake members comprises an elongated nut 20, Fig. 3, in which engage a threaded member 8 and a grub screw 18 which have respective interengaging end projections 16, 19; the cross-section of the latter is a semicircle and of the former a sector of about 155 degrees, included angle, so that the member 8 and the grub screw 18 have limited relative rotational movement. If the nut is rotated in one direction it will thread itself over both the grub screw 18 and the member 8; if in the other direction, the grub screw will rotate with the nut until the threads of the member 8 and the grub screw join in the nut as shown in Fig. 4. As applied to a disc brake, Fig. 1, the threaded member 8 forms the end of a tie-rod 5 the head 7 of which is seated in one of a pair of pressure plates 1a, 1b carrying friction pads 3, and which is screwed through a trunnion block 9 on an operating lever 10 which is pivoted at 11 on the other pressure plate; the lever can be actuated by a cable or rod attached at 13. A pin 22 fixed in the lever 10 projects into a hole 21 formed in the adjacent side only of the nut 20. Upon operation of the lever, the pin 22 moves upwards imparting a small rotation to the nut 20; the grub screw 18 will move with the nut until the surfaces 27, 17b (Fig. 3) abut. Further movement of the nut will screw it along the grub screw and the tie-rod end. When the lever 10 is released, the nut and grub screw will move together until the working tolerance is taken up; the nut will then join on the grub screw and tie-rod and the tie-rod will be rotated and screwed through the trunnion 9 reducing the effective length of the rod. The brake is released by a return spring 12, and a U-shaped spring member 14, 15 of the type described in Specification 883,417.
Patent GB-1439782-A (GB)
Title: Automatic flight control systems
IPC: B64C13/16
Filed: 1973-09-17
Abstract: 1439782 Automatic control of aircraft SPERRY RAND CORP 17 Sept 1973 [22 Sept 1972] 43460/73 Heading G3R [Also in Division G4] In an automatic flight control system which includes means for minimizing elastic deformations of the aircraft, these means are disabled if their activity exceeds a threshold value. In the embodiment the threshold level is varied according to the turbulence experienced to prevent spurious disablement. The complete system includes conventional flight control servo loops which operate in response to signals from an auto pilot 12, control column 13, a rate sensor 14 and a normal accelerometer 15 near the centre of gravity of the aircraft. This part of the system is termed "rigid body" control, and that for control of pitch, with three channel redundancy, is shown. "Voter" circuits 20 select that control signal which lies between the extremes. Comparison monitors 22 produce signals if their associated channel differs more than a prescribed amount from the selected one. The resulting control signals are summed at 31 with signals from "elastic body control" circuits to operate control surface servos 32, whose outputs are averaged at 33. The elastic body signals are produced by a device 24 in response to signals from the rate sensor 14, the accelerometer 15 and a further accelerometer 17 located to sense bending accelerations of the aircraft. The signals from 24 may be blocked by switch 26 operated by threshold circuits 30. These respond to a transducer 34 for the control surface movements or bending motions. The output of 34 is filtered at 36 to emphasize critical frequencies; this is followed by a smoothing circuit 37 and a level detector 40 whose output operates switch 26. The object is to disconnect the elastic body system in the event of a fault; no redundency is provided since this system is unessential. The threshold level comprises a bias value plus a value dependent upon turbulence, determined as the mean square of the output of accelerometer 15 after filtration at 43 to remove all frequencies other than those expected to be due to turbulence. The mean square value is computed at 44 by an integrating circuit, Fig. 3, (not shown). See Division G4.
Patent GB-1332831-A (GB)
Title: Catalyst for reacting alkyl-substituted aromatic and heteroaro matic compounds
IPC: B01J23/888
Filed: 1970-09-11
Abstract: 1332831 Aromatic nitrites DEUTSCHE GOLDUND SILBER-SCHEIDEANSTALT 11 Sept 1970 [26 Sept 1969] 43557/70 Heading C2C [Also in Division B1] Aromatic or heteroaromatic nitriles are produced by the ammoxidation of alkyl-substituted aromatic or heteroaromatic compounds in the presence of a catalyst consisting of a mixture of oxides of antimony and tungsten and optionally one or more compounds of manganese, chromium, iron, cobalt, nickel, copper or vanadium and/or a support, which has been pretreated by heating at 650-1100 C. in the presence of oxygen.
Patent GB-1404236-A (GB)
Title: Information apparatus
IPC: G07F17/16
Filed: 1972-09-21
Abstract: 1404236 Coin-freed apparatus A FUETSCH 21 Sept 1972 [30 Sept 1971] 43693/72 Heading G4V [Also in Division B6] A device for receiving and exhibiting written messages comprises an inscription band 6 extending between feed roller 11 and take up roller 14 behind a viewing window 5, and a writing slot 9 giving access to the band being closed by a shutter 10 that may only be opened after the insertion of a coin. When a coin is inserted operating knob 34 is freed for rotation to move shutter 10 via cables 40, 41 and also to wind up clockwork 35. At the end of a fixed period as indicated by a dial 36 driven from the clockwork shaft 37 is allowed to return, closing the shutter and also stepping band-moving sprockets 13 through rod 46 and pawl 47. An electric motor 29 is switched in while the sprockets are driven to rotate the take-up roller. In other embodiments (Figs. 6 and 7, not shown) means are also provided for exhibiting, after the deposition of coinage, bands which have become full and have been replaced. A printing device (70) may be provided to print at the edge of the band a mark identifying the type of information to be written.
Patent GB-963401-A (GB)
Title: Wheel detecting devices
Inventor: WALSH RONALD JAMES
IPC: B61L1/16
Filed: 1960-12-20
Abstract: 963,401. Locating magnetic bodies. WESTINGHOUSE BRAKE & SIGNAL CO. Ltd. Oct. 12, 1961 [Dec. 20, 1960], No. 43784/60. Heading G1N. [Also in Division B7] A wheel detector for an axle counting arrangement comprises two coils 11, 12 disposed on one side of a rail 55 with their axes substantially at right angles, a transmitter connected to coil 12 and a tuned receiver connected to coil 11. Minimum coupling between the coils, in the absence of a wheel, is obtained by the addition or removal of steel leading rods to or from the core of coil 12 and by adjustment of coil 11 about its pivot axis 41. The coil is locked in position by bolts 36, 37 and associated lock nuts 36a, 37a. The receiver includes rectifying means and supplies a D.C. output pulse each time a wheel flange increases the coupling between the coils. The transmitter and receiver are transistor operated.
Patent GB-1315610-A (GB)
Title: Automatic circuit breakers
IPC: H01H73/56
Filed: 1971-09-21
Abstract: 1315610 Automatic circuit-breakers BROWN BOVERI & CIE AG 21 Sept 1971 [26 Sept 1970] 44020/71 Heading H1N An automatic circuit-breaker has a U-shaped easing 1 with a quenching chamber 6 in one limb, a release magnet 9 and latch 13 in the other limb, a tripping bimetal 16 and contact lever 15 in the bridge piece 3 between the limbs, and plug connectors 5a, 5b, in the free space of the recess formed by the limbs and bridge piece 3. The contacts are formed by one end of lever 15 and a fixed contact member 8. A guide member 17 for lever 15 also supports the bimetal 16. A push button 18 sets the breaker whilst a disconnecting push button 19, when operated, displaces the latch 13. Spring 20 acts on the lever 15 to provide contact pressure in the contacts closed position and opening force when the breaker is tripped. The impact of armature 11 is transmitted to lever 15 via a part 21 of latch 13 to break any contact welds. An assembly of breakers 22, Fig. 4 (not shown), is described, with their recesses receiving cables and connectors 25, Fig. 5 (not shown). A flush fitting arrangement is shown, Fig. 6 (not shown), with a cover 32.
Patent GB-1157959-A (GB)
Title: Colour Photographic Process
Inventor: GREENHALGH COLIN WILLIAM
IPC: C09B43/32
Filed: 1965-10-19
Abstract: 1,157,959. Photographic diffusion transfer process. ILFORD Ltd. Jan. 17, 1967 [Oct. 19, 1965], No. 44202/65. Heading G2C. [Also in Division C4] A colour diffusion transfer reversal process for the production of dye images includes the step of developing the latent image in a colour diffusion transfer photographic material, comprising silver halide and a colour forming component in which the colour forming component is a pyrazolone group, by means of a developer containing as the only developing agent 1, 4-dihydroxy-naphthalene optionally substituted with halogen or an aralkyl or alkoxy group of up to 6C-atoms. The 1, 4- dihydroxy-naphthalene may be contained in the photographic material and activated by an alkaline processing liquid, or it may be contained in an alkaline processing liquid and applied by dipping or coating. The colour-forming compound may be a colour-or dye-coupler. When colour-couplers are used, the imaged receiving sheet is treated with an oxidizing agent, e.g. ammonium persulphate, to oxidize the colour developing agent which couples with the coupler.
Patent GB-1442330-A (GB)
Title: Lamp construction
IPC: F21V19/00
Filed: 1972-09-25
Abstract: 1442330 Lamps THORN ELECTRICAL INDUSTRIES Ltd 21 Sept 1973 [25 Sept 1972] 44240/72 Heading F4R [Also in Divisions H1 and H2] A lighting unit, in particular a sealed beam lamp, comprises a reflector 10 and a light bulb 11 attached to the reflector, the bulb having sheet metal legs 14 which serve as lead-in conductors and are provided with apertures 23 at their free ends and the unit having electrically conductive supports 20 which pass through the reflector and engage in the apertures, the parts of the legs around the apertures lying against abutment surfaces to locate the bulb relative to the reflector. When the reflector is made of metal the supports are surrounded by insulating sleeves 21 which provide the abutment surfaces 22, but if the reflector is made of insulating material the sleeves are omitted and the abutment surfaces may be formed by the reflector itself. Alternatively the supports may consist of sheet metal posts (34, Fig. 3, not shown) the ends of which are bent through 90 degrees and are provided with studs (35) to engage the apertures in the legs (33) of the bulb. In this embodiment the abutment surfaces are formed by the ends of the posts. The bulb may be a single- or twinfilament tungsten-halogen lamp or a high intensity discharge lamp, and the legs may either be releasably attached to the supports or secured thereto, or to the abutment surfaces, by welding, brazing, soldering, adhesives or by mechanical deformation of the supports. The bulb may be single- or double-ended.
Patent GB-1530199-A (GB)
Title: Apparatus for flushing the stomach of a human or animal
IPC: A61B1/12
Filed: 1976-10-25
Abstract: 1530199 Endoscope and catheter combination RICHARD WOLF GmbH 25 Oct 1976 [11 Nov 1975] 44277/76 Heading A5R Apparatus for flushing a stomach, consists of a flexible sheath 2 of maximum outer diameter 16mm and containing a flexible flushing pipe 1 of internal diameter between 7 and 8mm, a fibre light conductor 3, a fibre image-conductor 4, a duct for devices to break down an agglomeration of tablets in the stomach, and an air hose 8, cables passing through passages 7 in the sheath wall being able to be drawn in by knobs 9 to turn the distal end of the sheath. The pipe 1 is connected to an irrigator and vacuum pump and image-conductor 4 has an eye piece 5.
Patent GB-1080777-A (GB)
Title: Method and apparatus for dissolving molten materials
Inventor: HOUGHTON ALBERT BRYAN
IPC: C22B26/10
Filed: 1964-10-30
Abstract: In an inlet device for feeding molten alkali metal into a dissolver vessel, liquid ammonia fed through pipes 9 overflows the wall 11 and flows down the wall of the pipe 6 to keep the pipe free from incrustations or deposits of metal. <PICT:1080777/C6-C7/1>
Patent GB-1364259-A (GB)
Title: Tunnel boring machine
IPC: E21D9/10
Filed: 1971-09-23
Abstract: 1364259 Tunnelling machines HUGHES TOOL CO 23 Sept 1971 44467/71 Heading E1F , Torsional creep between a cutter assemblycarrying front plane of a tunnelling machine and an anchorable rear frame supporting the front frame through a single pivot, e.g. ball 35 and bush bearing 65, located behind said cutter assembly can, during use of the machine, be corrected by means, e.g. piston cylinder unit 13, that can rotate the second frame about its longitudinal axis relative to the first frame. U.S.A. Specifications 3203737, 3345100 and 3437380 are referred to.
Patent GB-1161137-A (GB)
Title: Constructional Building Panel.
IPC: E04C2/04
Filed: 1967-09-29
Abstract: 1,161,137. Wall panels. ENTERPRISES BALENCY & SCHUHL S.A. 29 Sept., 1967 [7 Dec., 1966], No. 44551/67. Heading E1B. A prefabricated wall panel comprises inner and outer layers 12 and 13 of reinforced concrete interconnected by steel elements 35 and 36 engaging rods 50 embedded in the concrete and an expanded polystyrene layer 14 through which the elements pass. At an opening in the panel for a window, the outer panel projects inwardly through the inner layer to form a frame having a recess to receive a window frame. The layer 14 is also bent inwardly around the frame and its free edge is covered by a beading attached to the window frame. The edges of the panel have grooves or rabets for connecting with floors or ceilings or similar panels.
Patent GB-1380835-A (GB)
Title: Spool release mechanism
IPC: F16D41/061
Filed: 1972-09-28
Abstract: 1380835 Braiding machines KARG CORP 28 Sept 1972 [29 Oct 1971] 44748/72 Heading D1C In a braiding machine 10 including spools 20 of strand material each spool 20 is attached for rotation with a locking disc 29 against a frictional locking force caused by impingement of cylindrical rollers 30 between the locking disc 29 and a series of sequentially spaced inclined planes 28 on an actuating disc 27, the locking force increasing as the torque load on the locking disc 27 increases but being released by movement of a roller retaining plate 31 relative to the locking disc 29 by movement of a release flange 32 associated with the plate 31. This arrangement acts as a spool release mechanism 25 and is contained in a case 26 integral with or mounted on a base 23 mounted on the strand fabricating machine, and a spindle 26 carrying the spool 20 extends coaxially from the base 23. In the embodiment of Figure 2 a hub member 45 of the spool 20 has a flange overlying the locking disc 29 and is attached thereto by torque pins 43. The rollers 30 are positioned with their axes transverse to the axis of spindle 24 and are maintained in position for contact with the inclined planes 28 by a lock means 34, which lock means 34 comprises a split ring 36 engaging an annular spacer 38 which in turn engages a peripheral flange of the locking disc 29. The locking disc 29 also seats a bearing 41 to facilitate rotation of the locking disc 29 relative to spindle 24, and annular spacers 42 maintain the position of rollers 30 between discs 27, 29. In the embodiment of Figure 5 the rollers 130 have their axes parallel to spindle 124. The spool 20 has a hub member 142 which is frictionally or mechanically attached to a tube element 143 attached by threads 144 to the locking disc 129. Lock means 134 maintain rollers 130 in position and comprise a top plate 137 secured to the case 126 by screws 138. In both embodiments the release flange 32, 132 is actuated by means responsive to conditions or forces developed by or present on a strand of material from spool 20 being led to the 'work centre' of the machine. As shown, the spool release actuator means comprises a rod 50 having an inclined surface 51 for sliding engagement with a surface 52 on flange 32 or 132, to cause selective movement thereof and permit spool rotation in infinitely variable increments.
Patent GB-1449077-A (GB)
Title: Taximeter
IPC: G07B13/00
Filed: 1974-10-17
Abstract: 1449077 Taximeters KIENZLE APPARATE GmbH 17 Oct 1974 [25 Oct 1973] 45038/74 Heading G4T A taximeter of the kind having tariff control means together with fare indicator means switchable to a first initial "base" fare, is characterised by the further inclusion of a separate function switching means selectively actuated by said tariff control means whereby an additional base fare increment is optionally stepped into the fare indicator means. A conventional mechanical taximeter layout includes tariff control shaft 11 together with time/ distance responsive drive shaft 1 which actuates pawl arm 4 to drive fare indicator 10 via pawl 7 and star wheel 8. Into this mechanism is interposed switching means comprising pivot arm 12 and second pawl arm 13, whereby, upon actuation by means 38, 34 end 18 of arm 13 is pivoted into the influence zone of tariff control shaft cam 19 the arm thereby pivoting to engage drive pin 23 and rotate switch wheel 24 until stop 25 abuts face 20/2 of arm 13. The motion of switch wheel 24 is imparted to indicating means 10 via gear transfer 28 thereby effecting a step increase in indicated fare. Adjustment in the switching motion is possible by the resetting of pins 23, 25 in arcuate slot 27, and adjustment in the functionally effective position of the switching means 12, 13 is afforded via adjustable axis 14. In alternative embodiments, transmission gearing 28, 29 may be omitted, and switching disc 24 directly arranged on shaft 9; in addition, actuating means 38, 34 may take the alternative forms of an arrestable button or a bayonet connection with a rotatable knob.
Patent GB-1058498-A (GB)
Title: Overload safety claw coupling
IPC: F16D43/202
Filed: 1964-11-04
Abstract: 1,058,498. Overload release clutches. MASCHINENFABRIK AUGSBURG-NURNBERG A.G. Nov. 4, 1964 [Nov. 6, 1963], No. 45046/64. Heading F2C. An overload-release claw clutch between a driving shaft 1 and a driven member 4 in a folding apparatus for printing machines, comprises an axially-slidable input clutch member 3 splined on the shaft 1 and drivingly engaging the member 4 through inclined facial teeth (6, 5) (Fig. 4, not shown), and retained in engagement against torque by the axial thrust of three toggle spring assemblies (13, 14) (Figs. 2 and 3, not shown), the inner ends of which are pivoted to pins (15), on the clutch member 3, and the outer ends pivoted on pins (17) in a flange (18), the axial position of which may be varied by rotating nuts 26, 27 for clutch adjustment, the arrangement being such that on overload the inclined teeth (6, 5) are cammed axially apart to move the member 3 through the dead-centre position of the toggle springs (13, 14) which then throw the member 3 completely clear of the driven clutch member 4, the axial movement of the member 3 additionally rocking a lever (29) to throw a switch to stop the machine. Intermediate dog teeth (7, 8) prevent clutch disengagement when the machine is braked, and tongue-and-slot connections (9, 10) ensures correct peripheral engagement of the facial teeth. The toggle spring assemblies (13. 14) (Fig. 2, not shown) comprise stacks of cup springs between telescoped sleeves (19, 20), the sleeves (19) being adjustably threaded on pins (22) to vary the release torque and being retained by spring clips (21). The angular position of the folding apparatus may be adjusted relative the printing machine by loosening screws 25 and turning a member 24. The clutch may be manually disengaged by turning eccentrics (12) (Fig. 4, not shown).