baber/WOPTO huggingface dataset:
Patent GB-1195313-A (GB)
Title: A Device for Visually Signalling or Indicating the Presence of its User
IPC: G08B5/38
Filed: 1968-02-21
Abstract: 1,195,313. Warning lamps. P. ALTARE, and J. DUSSAUD. 21 Feb., 1968 [22 Feb., 1967], No. 8528/68. Heading F4R. A belt 1, adapted to be worn by pedestrians, cyclists or the like, comprises a pair of flashable amber direction indicating lamps 4 and one or more red warning lamps 3 controlled by suitable switches. The lamps are powered by batteries carried in boxes 9, 10 on the belt and the switches for the indicating lamps may be attached to the handle bars of the cycle or to garments such as gloves and be connected in circuit by flexible leads 13 retractable under spring tension into pockets 17 on the belt. The lamps 4 may be of the self-flashing type or be controlled by an electronic flasher or two-way switch, and the belt preferably carries a band 23 of light reflecting material.
Patent GB-151554-A (GB)
Title: Improvements in pistons and piston rings for fluid pressure engines
IPC: F16J9/08
Filed: 1920-03-23
Abstract: 151,554. Davies, W. H. March 23, 1920. Piston packing.-A split packing-ring a is recessed at diagonally opposite corners to accommodate a second split packing-ring b and to form a flange on which the fluid pressure acts to expand the ring. The piston-head is reduced in diameter to accommodate the flange of the ring a and is formed with cut-away portions, as shown, to admit the pressure to the back of the flange. The ring is also pressed axially by the fluid pressure.
Patent GB-1286582-A (GB)
Title: Improvements in or relating to tandem arrangements of vehicle axles
Inventor: POPELAR VLADIMIR
IPC: B60G5/03
Filed: 1970-02-23
Abstract: 1286582 Tandem axle suspensions TATRA NARODNI PODNIK 23 Feb 1970 8537/70 Heading B7D In a tandem axle suspension arrangement in which the axles have common longitudinallyextending leaf-springs, the leaf springs are so disposed that their axes 2 are closer to the longitudinal axis 1 of the vehicle than to either the median planes 3 of wheels 4 on their associated sides of the vehicle or the medium planes (3<SP>1</SP>), Fig. 2 (not shown), of sets of double wheels (4<SP>1</SP>). The axles can swing, in generally vertical planes, about the longitudinal axis 1.
Patent GB-283374-A (GB)
Title: Improvements in or relating to stretchers, bed frames and the like
IPC: A61G1/00
Filed: 1927-03-29
Abstract: 283,374. Schultz, G. L. Mesman-. March 29, 1927. Litters. - In stretchers and sleeping frames of the type comprising side beams a single rigid beam at each end and a berth adapted to be stretched by adjustment of the beams, the berth 6 is secured to the side members 2 only, which at their ends embrace the rigid transverse beams 1 in such a manner that the embracing pieces are slidable along the transverse beams and adapted to be fixed thereto. The side members 2 comprise tubes having flattened ends 3 adapted to embrace the end members 1 and to be adjusted thereon and secured by pins or hooks 4 and apertures 5. Feet 7 may be secured to the end members 1 when the device is adapted for use as a camp bed. Fig. 4 shows a lever arrangement for engagement with the side members to stretch the supporting surface.
Patent GB-685420-A (GB)
Title: Nozzle for the projection of granular material
IPC: B28C5/02
Filed: 1951-04-12
Abstract: 685,420. Mixing appliances. BASIC REFRACTORIES, Inc. April 12, 1951 [Sept. 30, 1950]. No. 8574/51. Class 86 [Also in Group XXIX] A nozzle for projecting granular materials includes a housing 2, a cylindrical ring 4, a closure ring 10, and a projection pipe 16. A peripheral flange 5 on the ring 4 provides interconnected annular passages A and L, which are supplied with air and liquid respectively from inlets 13 and 22. The air passes from the passage A to the passage L and the mixture flows from a series of openings 6 to mix with granular material fed through an extension 12. The pipe 16 is of rubber or the like and is reinforced by a metal sleeve 18.
Patent GB-753010-A (GB)
Title: Floor brake shoes for aircraft
IPC: B64C25/42
Filed: 1953-05-04
Abstract: 753,010. Aircraft; stopping way. HOKE, H. H. May 4,1953 [May 19, 1952], No. 8602/56. Divided out of 752,877. Class 4. [Also in Group XXXIV] A floor brake shoe for an aircraft having reversible propeller driving units mounted thereon includes landing surface engaging means carried by the aircraft, and means actuated by said brake shoe for reversing the direction of rotation of the propeller driving units. In Fig. 1, a member 12 fast to the aircraft comprises an inverted U-shaped member 11, having fore-andaft grooves engaged by tongues 14 of a plate 10 adapted to engage the ground. An aft upright 15 on plate 10 is attached by tension-springs 17 to lugs 18 on member 11, and a forward upright 16 is adapted to close a switch 19 when the plate 10 slides rearwardly with respect to member 11 due to frictional engagement with the ground. Switch 19 operates an electromagnet to interchange two wires of a three-phase electric supply to electric motors driving the propellers, thus reversing the motors.
Patent GB-368085-A (GB)
Title: Improvements in bomb releasing devices for aircraft
IPC: B64D1/04
Filed: 1931-03-20
Abstract: 368,085. Bomb - dropping. SWIATECKI, W., 49, Krakowskie Przedmiescie Street, Lublin, Poland. March 20, 1931, No. 8668. [Class 9 (ii).] Relates to bomb-dropping apparatus in which a number of bombs are supported one above the other by members so arranged that after the release of the lowermost bomb the supporting member thereof swings out of the way to allow the next bomb to fall without obstruction. According to the invention, the supporting member, such as a tube 1, as shown in the Figure, is rotatable about its axis with a shaft 3 to which it is connected at one end bv a transverse hinge 2, the other end of the tube having a flat piece 5 fitting into a slot in a bearing 12 rotatable in a cross-piece 6 of the frame. The bomb 9 is carried by a hook 8 on the tube 1 and is steadied by arms 10 adjustable to the size of the bomb by right and lefthanded screw threads on a spindle 11 rotatably mounted in the tube 1. The shaft 3 hinged to one end of the tube 1 is rotatably mounted in a bearing 4 and is provided with a lever 15 by means of which the device is locked in any suitable way. When the lock is released, the weight of the bomb rotates the tube around its axis for about 90‹ until the bomb slips off the hook and the slot of the bearing 12 comes opposite a bottom notch in the cross-piece 6, and the pin of the hinge 2 at the same time becomes horizontal, whereupon the tube swings down about its hinge and is caught by a spring clip 14, as shown in dotted lines, out of the way of the bomb next above.
Patent GB-1387323-A (GB)
Title: Piezoelectric pressure and force transducers or acclerometers
IPC: F02B1/04
Filed: 1972-02-24
Abstract: 1387323 Piezoelectric devices KISTLER INSTRUMENTE AG 24 Feb 1972 [15 March 1971] 8672/72 Heading H1E A piezoelectric element for use in a force transducer comprises a disc 14 or a rod 9, a disc being used for the longitudinal effect with force introduction surfaces parallel to electrode surfaces and a rod being used for the transverse effect with force introduction surfaces perpendicular to at least one electrode surface, the element in either case being cut so that the stress state produced in use is directed along a line which is inclined to the XY plane at an angle a which is greater than 0 and less than 90 degrees and in the case of the disc is inclined at an angle # to the YZ plane where # is greater than 0 and less than 30 degrees. The crystal is quartz or a similar material. The arrangement is said to improve high temperature performance by providing stability against Dauphine twin formation.
Patent GB-428961-A (GB)
Title: Improvements in or relating to washing and cleansing agents and the like
IPC: C11D3/39
Filed: 1934-03-20
Abstract: Detergents are composed of an alkali metaphosphate, soap or a soap substitute, and a per-oxygen compound such as alkali perborate, percarbonate, perphosphate, and perpyrophosphate with or without a stabilizer e.g. waterglass, pyrophosphate, or a magnesium compound. Known cleansing-agents e.g. soda, alkali phosphates, silicates, and borates, solvents, and superfatting agents may be added.  The detergent may be in the form of flakes, shreds, solutions, pastes, lumps, or powders, and preferably has a content of about 1 per cent of active oxygen and 30--50 per cent of soap (anhydrous).  In an example, an aqueous solution of 30 lb. of sodium metaphosphate, 60 lb. of sodium salts of sulphuric esters of higher fatty alcohols, and 10 lb. of sodium perborate is used for washing silk or other delicate fabric.  Reference has been directed by the Comptroller to Specification 408,708.
Patent GB-1428654-A (GB)
Title: Gear pumps
IPC: F04C2/18
Filed: 1972-02-25
Abstract: 1428654 Rotary positive-displacement fluidmachines RENOLD Ltd 23 May 1973 [25 Feb 1972] 8764/72 Heading F1F To reduce leakage between high and low pressure zones 89, 90 in a reversible gear-pump, or motor, an insert 81 accomodating the gears 71, 72 is held against the tooth tips on the high-pressure side by e.g. the pressures in said zones being transmitted to spaces interjacent the insert and members 110, 111 through passages 115, 116, which may contain flow restrictors (R), Fig. 10 (not shown), to reduce the rate of response to sudden pressure changes. The insert may also be clamped between a plate 92 and a block 65 owing transmission of the pressures in the zones 89, 90 to spaces behind the plate through holes 95, 96. Recesses 101, 102 may contain sealing rings 97, 98 and plates 99, 100 with holes 104, 105 that are larger than the holes 95, 96. The plate may comprise a layer of plastics material such as nylon, acetal or polyvinylidene fluoride, backed with annular plates (92a), Fig. 6 and 7 (not shown). Fluid leaking from the high-pressure zone 89, or 90, between the insert 81 and block 65 is returned to the low-pressure zone by way of grooves 120, 120a in the insert. Additional plates similar to the plates 92, 99, 100 may be disposed between the insert and block, Fig. 10 (not shown).
Patent GB-259474-A (GB)
Title: Improvements in or relating to the binding of books, magazines, and the like
IPC: B42D1/00
Filed: 1926-04-01
Abstract: 259,474. Phillips, A. E. April 1, 1926. Bookbinding.-In books, magazines, and the like, of the kind bound by means of staples or fasteners disposed at longitudinally spaced points in the binding edge, the superposed leaves a, Fig. 1, are cut or pierced by longitudinal slits d which confront and partly surround the fasteners c, thereby forming integral binding-stubs f and freeing the. leaves from the restraint of the clamping pressure of the binding fasteners, permitting them to open out flat on opposite sides of the binding when the book is opened, as shown in Fig. 3. The slits are preferably of compound formation, comprising an intermediate arcuate portion with arcuate ends curved in the opposite direction, or they may be of V or other formation confronting and partly surrounding the fasteners. The slits may be produced by cutting in a guillotine type of machine, or by perforating and subsequently tearing the leaves.
Patent GB-864967-A (GB)
Title: Improved over-temperature heater element safety switch
IPC: H01H37/48
Filed: 1959-03-13
Abstract: 864,967. Thermal switches. CONTACTOR (PROPRIETARY) Ltd. March 13, 1959 [June 10, 1958], No. 8832/59. Class 38 (5). A cut-out for an immersion type resistance heater element, e.g. for an electric kettle, comprises contacts 19, 20 which are normally held closed against the bias of a spring 18 tending to move contact 19 downwards to the dotted position by an adjustable nut 14 on a rod 11 secured at 12 to a sleeve 10 clamped at 9 to the heater 1. The sleeve 10 is fixed at 15 to the sheath 2 of the heater and is formed from brass, the rod 11 having a relatively low expansion. A spring 26 arranged between the nut 14 and the end of the sleeve 10 is bowed outwardly to the left on lowering of the nut 14 due to expansion of the sleeve 10 due to overheating, and the end of the spring 18 is forced out from under the nut to allow the contacts to open. The downward movement of contact 20 is limited by a stop 21a and the contacts are reclosed by depressing a plunger 23 when the sleeve 10 has cooled.
Patent GB-471604-A (GB)
Title: Automatic means for regulating the d.c. output voltage of polyphase arc rectifiers
IPC: H02M7/15
Filed: 1936-03-25
Abstract: 471,604. Rectifying alternating current. ENGLISH ELECTRIC CO., Ltd., BALL, R. D., and CALVERLEY, J. E. March 25, 1936, No. 8894. [Class 38 (ii)] In a grid-regulated polyphase arc rectifier wherein voltage impulses are applied to the grids by a rotary distributer or generator, the output voltage of the rectifier is maintained constant by causing a current produced by the difference between the output voltage and a constant reference voltage to vary the timing of the impulses applied to the grids. In the arrangement shown, the distributer or generator 4 is driven by a synchronous motor 5 having a constantly excited field winding 5b and an axially displaced field winding 5c excited by the difference between a constant reference voltage 6 and the output voltage of the rectifier or a part thereof derived from a potentiometer 7. A rectifier 9 may be included in the circuit of the winding 5c to cause regulation to be effected only when the output voltage tends to rise above a predetermined value, or alternatively only when it tends to fall below a predetermined value. A further field winding 5d may be provided on the motor and excited by the difference between a constant voltage 12 and a voltage proportional to the input or output current of the rectifier derived from a current transformer 10 and rectifier 11. Thus above a predetermined value of load current an over-riding control is effected by the winding 5d causing the voltage of the rectifier to droop as described in Specification 474,155. When the voltage impulses supplied to the grids are derived from a generator, instead of varying the timing by shifting the axis of the motor field system as described, similar means may be used to shift the axis of the generator field.
Patent GB-793742-A (GB)
Title: Armature arm for electric hair clipper
Inventor: WAHL LEO JACOB
IPC: B26B19/28
Filed: 1956-03-22
Abstract: 793,742. Hair clippers. WAHL CLIPPER CORPORATION. March 22, 1956, No. 8948/56. Class 131 [Also in Group XXXV] The cutting head of a hair clipper is constrained to move in an approximately linear path by supporting the oscillating armature 8 on a spring arm 12, stiffened over most of its length by lateral flanges 22 having enlarged ends for securing to the armature, and which has a circular portion 16 at the securing end to allow flexing action, the arrangement being designed to provide an arm movement of maximum radius within a given length of housing.
Patent GB-578275-A (GB)
Title: Equipment utilising radio electric waves for determining direction or location of an object
IPC: G01S1/02
Filed: 1943-06-04
Abstract: 578,275. Radiolocation. STANDARD TELEPHONES & CABLES, Ltd. (International Standard Electric Corporation). June 4, 1943, No. 8994. [Class 40 (v)] [Also in Group XXXVI] In an arrangement for determining the direction or location of an aeroplane from the ground or another aeroplane or of a ground station from an aeroplane, radio signals are sent out by a pair of transmissions having a constant ratio of strengths, and reflected signals corresponding to the two transmissions are applied to separate deflecting plates of a cathode-ray oscillograph. In the arrangement shown, Fig. 1, two transmissions of slightly-different frequencies F1, F2 of equal strength are sent out from aerials A1, A2 to produce a directive beam B. Signals received in wide-band receiver R after reflection are separated by filters 21, 22 and applied to opposite deflecting plates of a cathode-ray oscillograph I. By applying an alternating potential to the other pair of deflecting plates, a line n1, Fig. 3b, is obtained, its displacement from the centre line T1 giving an indication of the position of the reflecting object in relation to the centre plane of the beam B. The two frequencies may be sent out continuously or in pulses which may be simultaneous or alternate. When pulses are used, time-delay arrangements must be provided in the filters Z1, Z2 to cause the reflected pulses to act simultaneously on the tube I. Two pairs of transmissions may be used to give directions in two planes, such directions being indicated by horizontal and vertical lines n1, n2, Fig. 3b. For such transmissions, four adjacent frequencies may be used, or where pulses are employed, one frequency may be used for each pair of transmissions, the changeover circuits of the oscillographs being synchronized with the transmission of the pulses from the two pairs of transmitters. The two direction indications may also be given as radial lines n3, n4, Fig. 3c, on the same or two different oscillographs. In another arrangement, Fig. 5, two oscillographs I5, I6 having different coloured screens, have their effects combined by the use of a semi-transparent mirror I7. When pulses are used, the distance of the reflecting object may be determined by utilizing a second oscillograph having a timebase of periodicity equal to that of the pulses, the receipt of the reflected pulses causing a line indication to be given. Alternatively, one tube may be used with vertical and horizontal lines for the direction and distance indications, the circuits being alternately connected to the tube at a frequency sufficient to give persistence of vision.
Patent GB-1535007-A (GB)
Title: Device for tensioning a surgical appliance
IPC: A61B17/80
Filed: 1977-03-03
Abstract: 1535007 Linkwork SYNTHES AG 3 March 1977 [26 March 1976] 08994/77 Heading F2K A lever clamp device for tensioning a surgical appliance, e.g. for tensioning compression plates used in the treatment, i.e. clamping together of bone fractures, comprises two levers 1, 2 connected together at one end by a load calibrated compression spring strut 8 and adjustably connected at an intermediate point by a screwed turnbuckle 17 having portions of right and left handed threads 17b, 17c engaging captive nuts 15, 16 pivotally mounted, at 15a, 16a, on the levers 1, 2. The free end of the lever 1 pivotally carries a link 7 which, in use, is secured at 7a by a screw 20 to a broken bone 21a on one side of a bone fracture, whilst the free end of the other lever 2 pivotally carries a double-ended hook 18, the hook 18 reacting against a reaction pin 6 on the lever 2 and engaging one of its hooked ends in a plate 22 which has already been secured by screws 23 to the other broken bone 21b. Rotation of the turnbuckle 17 in the appropriate direction serves to tension the plate 22 and clamp the fractured bones 21a, 21b together with a requisite, i.e. predetermined compression load which may be readily observed on the calibrated scale of the compression spring strut 8, after which the plate 22 may be firmly secured by further screws to the broken bone 21a to retain the broken bones clamped together with the predetermined load and the lever clamp device released and removed from the now clamped bone fracture. By turning the hook 18 through 180 degrees from the illustrated position and replacing the compression strut 8 with a tension spring strut, the lever clamp device may be used to separate, i.e. push apart bone fractures. The compression spring strut 8 may be, as shown, in the form of a simple compression spring 12, or, may be a pneumatic or hydraulic strut.
Patent GB-1460849-A (GB)
Title: Material for printed circuits
IPC: H05K3/38
Filed: 1974-02-27
Abstract: 1460849 Printed circuits PERSTORP AB 27 Feb 1974 [28 Feb 1973] 9004/74 Heading H1R [Also in Division C7] A material for forming printed circuits is produced by applying a layer of Zn to a temporary base of Al (alloy) foil, then replacing wholly or partly the Zn layer b0 a layer of metal (other than Cu) more electropositive than Zn, e.g. Ni, Fe, Cr, Sn, Cd or Co between 0À01 and 1 micron thick, then electroplating a Cu layer, preferably less than 17 micron thick, to the surface of the metal layer remote from the Al (alloy) foil. The Zn may be replaced by Ni by chemical reduction plating using a solution containing 2 to 25 g/l Ni ions, e.g. NiCl 2  with H 2 SO 4  (to adjust pH between 0À5 and 5). Cu plating may be effected on the Ni in a solution containing 220 g/l CuSO 4 . 5H 2 O and 100 g/l H 2 SO 4  with current density first at 3 then at 4 A/dm<SP>2</SP>. Prior to Zn coating, the Al foil may be washed in a solution containing 5% NaOH, 0À5% ZnO and 0À1% FeCl 3 . A printed circuit is formed from the material by bonding the Cu layer, e.g. by applying heat and pressure to a final insulating base, e.g. of glass fibre reinforced epoxy resin plastic and etching away the Al (alloy) foil, e.g. in HCl solution, and if necessary removing the Ni layer, e.g. in FeCl 3  solution or electrochemically (anodically) in H 2 SO 4 , and producing a desired wiring pattern by etching the remaining continuous unpatterned Cu layer adhering the final insulating base.
Patent GB-1180568-A (GB)
Title: Method and Apparatus for Minimizing Air Pollution
IPC: F23J11/00
Filed: 1967-02-24
Abstract: 1,180,568. Scrubbing combustion gases. COMBUSTION ENG. Inc. 24 Feb., 1967 [20 April, 1966], No. 9055/67. Heading B1R. In plant in which a fuel is burned with preheated air and the combustion gases are scrubbed, a stream of preheated air is divided into a portion which is supplied for burning the fuel and a portion which is added to the cooled scrubbed combustion gases before they are discharged to atmosphere, the temperature of the preheated air being higher than that of the gases leaving the scrubber. The preheated air stream is obtained by heat exchange with the combustion gases before they are scrubbed and the amount of preheated air added to the scrubbed combustion gases may be controlled automatically by a thermostat. Chalk or dolomite may be introduced into the combustion zone.
Patent GB-254407-A (GB)
Title: Improvements in and relating to control mechanisms for hoists, lifts and the like
IPC: B66B1/44
Filed: 1925-04-06
Abstract: 254,407. British Thomson-Houston Co., Ltd., and Liddiard, H. W. C. April 6, 1925. Drawings to Specification. Electric plant.-In electrically driven hoists in which the acceleration is carried out automatically by means of contactor gear under current limit control and in which the hoisting motor is braked at a predetermined distance from the end of the travel by means of a diverter resistance, the amount of diverter resistance introduced is determined by contactors controlled by the position at the end of the accelerating period of the skip or cage relatively to a plurality of selector switches.
Patent GB-526770-A (GB)
Title: Improvements in and relating to ventilator cowls
IPC: F23L17/10
Filed: 1939-03-23
Abstract: 526,770. Ventilating shaft tops. MARSHALL, J., and KENNEDY, J. R. March 23, 1939, No. 9150. [Classes 25 and 137] A weatherproof ventilator cowl mounted on a cylindrical trunk 1 bolted to the deck &c. 22 comprises an inner substantially cylindrical portion 2 revoluble on the trunk 1 and an outer coaxial cylindrical portion 3 having an aperture 13 facing in the opposite direction to an aperture 7 in the portion 2. Air entering the aperture is divided into two currents passing around the flat sides 4 of the portion 2 to the aperture 7 and is then guided by the curved top 6 and arcuate back 5 of the portion 2 in a downwardly curved reverse path to issue through the trunk 1. The edges of the apertures 7, 13 may be rounded or surrounded by split-tubes 8, 15 of circular or " stream-line " section to diminish air resistance. The portion 3 may be fitted with curved baffles 25 opposite to the aperture 7 and may be provided with drainage holes 18. A handle 24 is provided for turning the cowl. The aperture 13 is screened by wire-netting.