baber/WOPTO huggingface dataset:
Patent GB-342026-A (GB)
Title: Improvements in processes for the production of insulating paper
IPC: H01B3/48
Filed: 1929-11-12
Abstract: 342,026. Insulating-paper. BAUSCH, V., 75, Potsdan.erstrasse, Berlin. Nov. 12, 1929, No. 34533. [Class 140.] Insulating-paper which is completely saturated with an impregnating varnish and retains a coating on both sides is made by passing the web through an enclosed vessel containing the varnish under pressure, the paper entering and leaving the vessel through slits of smaller cross section than the inlet through which varnish is pumped in. During the subsequent drying, an excess of varnish remains on the surfaces of the paper and makes good any shrinkage of the varnish which occurs in the body of the paper.
Patent GB-1332540-A (GB)
Title: Wobbulator
IPC: H03B23/00
Filed: 1971-07-23
Abstract: 1332540 Testing frequency characteristics of electrical devices WANDEL U GOLTERMANN 23 July 1971 [2 Dec 1970] 34599/71 Heading G1U A wobbulator 1, comprising a sawtooth generator controlling the frequency of an oscillator and for use in displaying on a C.R.O. 5 the frequency characteristic of a device 2, is provided with a selector switch 9 for selecting the rate of frequency change (slope of the sawtooth) and a further switch 10 operable to temporarily reduce the rate of frequency change without altering the position of the selector switch 9. By observing whether there is any change in the oscillograph display when the further switch 10 is operated, the user checks whether the selected rate of frequency change is too high, i. e. is so high that the display is being affected by time lag in the response of the device 2 to frequency changes. The switch 10 may reduce the rate: (i) for a portion of each cycle of the sawtooth; (ii) on alternate cycles; or (iii) to zero at several instances during each cycle, the electron beam being blanked out while the rate remains at zero.
Patent GB-1147214-A (GB)
Title: Improvements in servo systems
Inventor: ROGERS GEORGE LEEMAN
IPC: G05B19/35
Filed: 1966-05-27
Abstract: 1,147,214. Digital position control. GENERAL ELECTRIC CO. 27 May, 1966 [28 May, 1965], No. 34600/68. Heading G4H. [Also in Division G3] A positioning system operating by comparing the phase of rectangular command waves with rectangular position indicating waves uses an electromagnetic position transducer having its winding or windings fed with rectangular reference waves. The use of rectangular waves in the transducer facilitates operation from a rectangular wave control system. The lathe tool positioning system shown includes a 250kc clock oscillator feeding a reference counter providing a 250c/s reference rectangular wave R. This is fed to a phase splitter 10 providing two 90 degree phase displaced rectangular waves which are applied to rectangular wave supply circuits 20, 40 feeding the two stator windings of a resolver 18 coupled to the lathe tool. The clock signal is also applied to a command counter B providing a 250 c/s. wave C displaced in phase by an amount determined by manual setting of the keys of a control S or by a tape reader T which displace from zero the initial count in the counter. The output from the resolver is applied to a band-pass filter to remove undesirably phase shifted harmonics and to a clipper to reconvert the wave signal to a square wave. This and the command wave are applied to a phase discriminator D which drives a motor so to adjust the tool that the rotor of the resolver which moves with the tool provides an output wave having the same phase as the command wave. It is stated that the adjustment provided may be one of three providing coarse, medium and fine control. The resolver supply circuit 20 and 40 (Fig. 2, not shown) each comprise a bridge of four switching transistors (21, 22, 23, 24) with the resolver stator connected across the output diagonal.
Patent GB-191596-A (GB)
Title: Improvements in and relating to electric switch operating mechanism
IPC: F02M25/022
Filed: 1921-12-23
Abstract: 191,596. British Thomson - Houston Co., Ltd., (General Electric Co.). Dec. 23, 1921. Oil-switches; locking.-Means are provided in oil-switches for preventing the internal pressure due to the arc from re-closing the contacts when the switch is being opened. A slot 21 in the enlarged head 15 of the contact operating rod 14 has inclined faces 22 cut in it to engage two pivoted pawls 23. Upward movement of the rod 14, due to the pressure, moves the pawls outwardly into engagement with teeth 24 on upstanding members 25 on the lid. For closing the switch, the depending part 16 of the operating member 20 has flanges 17 formed therein, and is further slotted to allow movement of the pawls. In another form, Fig. 2, friction-surfaces 50 are engaged by brake-shoes 43, pivoted to links 42 on the rod 14, to check upward movement of the contacts. Links 44 on the member 41 move the shoes 43 inwardly when the switch is to be closed. Lugs 47, 51 are fitted on the rod and shoes respectively to limit the rotation of the links 42 and the shoes.
Patent GB-1151434-A (GB)
Title: Laundry Article Spreading Device
Inventor: WEIR HENRY JOHN
IPC: D06F67/04
Filed: 1966-08-02
Abstract: 1,151,434. Feeding articles to ironing machines. H. J. WEIR. 20 July, 1967 [2 Aug., 1966], No. 34687/66. Heading D1A. A device for spreading laundry articles, such as sheets, fed to an ironing machine comprises two pairs of opposed contra-rotating belts 5 between which the edges of a sheet 1 are guided, and means for periodically moving the inner rims of each pair of belts apart and together, relative to one another. The relative movement may be effected by bodily moving one belt relative to the other, or displacing the inner runs of one or both belts of each pair relative to the outer run(s). The latter alternative is achieved by means of pivoted arms (14 Fig. 2 not shown) bearing against the runs and moved by cam controlled link rods (16).
Patent GB-603343-A (GB)
Title: Luminescent compounds
IPC: C09K11/73
Filed: 1945-12-21
Abstract: 603,343. Luminescent materials. BRITISH THOMSON - HOUSTON CO., Ltd., and WELLS, R. S.. Dec. 21, 1945, No. 34695. [Class 39 (i)] A luminescent material comprises the fluorophosphate of magnesium activated with thallium, silver or uranium. The material is prepared by forming an intimate mixture of magnesium ammonium phosphate and magnesium fluoride with a compound of thallium, silver or uranium capable of forming the corresponding oxide, firing the mixture at a temperature of between 900‹ and 1000‹ C. and reducing the resulting product to a fine powder. Thallium nitrate, silver nitrate, silver acetate, uranium trioxide and uranium nitrate are referred to as activating compounds. Proportions of the constituents are stated and methods of preparing magnesium ammonium phosphate and magnesium fluoride described.
Patent GB-1137499-A (GB)
Title: Tape applying means
Inventor: JORDAN ALAN JAMES
IPC: B65B51/06
Filed: 1966-08-03
Abstract: 1,137,499. Suction heads applying labels to articles. ADHESIVE TAPES Ltd. 25 July, 1967 [3 Aug., 1966], No. 34866/66. Heading B8F. A suction head 1 applying a strip of adhesive tape to an article D carries a knife 18 cutting the tape from a strip and is mounted on a parallelogram linkage 1a. In the form illustrated the knife 18 co-operates with a blade 17 spring- biased about a supporting shaft. The suction head 1 oscillates in a quadrant of a circle. The adhesive tape is fed from a reel 8 together with a tab tape from a reel 10 and the two are carried over guiding rollers and over V-shaped rollers 15, 16 which stiffen the tape where it is to be cut. A pattern on the tape may be detected by a photo-cell 7 controlling the drive to keep the pattern in register. The drive to the feed may be through an electro-magnetic clutch 5, operative for only part of the cycle of the machine so that the tape is stationary when it is cut, or the drive may be provided by an adjustable - roller 12 and a one-way clutch. The articles D are carried by an endless conveyer.
Patent GB-175820-A (GB)
Title: Improvements in devices for displaying advertisements
IPC: G09F11/02
Filed: 1920-12-10
Abstract: 175,820. Thorne, E. A. Dec. 10, 1920. Moving and changing apparatus.-In apparatus of the kind in which advertisements are displayed on a series of parallel rollers of triangular or like shape which are partially and intermittently rotated to change the visible face of the rollers. means are provided for moving the rollers from their normal slightly-separated position to a closed position in which the display posters can be more conveniently pasted on the rollers and severed. As shown in Figs. 1 and 2, an inner frame comprising uprights c and pairs of horizontal guideways d is mounted within the outer casing a. The spindles e of the display rollers b form the central line of pivots of upper and lower lazy-tongs f disposed within the guideways d. The two lazy-tongs are jointly operated by a nut j and screw i connected to a vertical bar k linked to the tongs, the opposite ends g of which are fixed. By operating the nut j, the gaps between the rollers are uniformly adjusted. The rollers may be driven by bevel-pinions slidably mounted on a shaft l gearing with similar pinions on the spindles. The shaft l may be driven from the motor r through intermittent gear of the kind described in Specification 174,776. In a modification, the rollers are mounted on aligned links, alternate links being slotted at each end and engaging pins mounted on the intervening links. A revolving commutator may be arranged to give an illuminating effect of one or more colours.
Patent GB-1465333-A (GB)
Title: Treating of waste discharge liquids from metal hardening baths particularly containing nitrile and nitrate compounds
IPC: C23C8/54
Filed: 1974-08-08
Abstract: 1465333 Treating waste water E MOHR 8 Aug 1974 [9 Aug 1973] 34926/74 Heading B1B Waste water containing industrial treating or hardening salts is treated by discharging into a melt of the salts to evaporate the water excess molten salts being run off from an overflow. Fig. 1 shows evaporator containing melt 5, waste water feed line 3 fitted with flow dispersing means 9 (e.g. bulb filled with steel wool retained by means of a mesh structure) and melt overflow 10.
Patent GB-767112-A (GB)
Title: Improvements relating to electrical switchgear
Inventor: HUNT JOSEPH JAMES HOLMES
IPC: H01H1/20
Filed: 1953-12-16
Abstract: 767,112. Snap-action switches; switch cases. SIMPLEX ELECTRIC CO., Ltd. Dec. 16, 1954 [Dec. 16, 1953], No. 34969/53. Class 38(5) A switch and fuse assembly has the switch contacts and the fuses arranged in respective superposed layers parallel to a base member and spaced therefrom so as to provide a cable space adjacent the base member. The fixed contacts 14 are supported by members 17 carried by clamps 28 secured to bridge members 20. The latter are shown as being secured by members 21 to lugs 23 on the ends 12 of the housing 10, but may be spaced from the base by distance pieces or may be supported at one end only. The contacts 14 are arranged to be bridged by contacts 15 loosely carried by an operating bar 32 which is guided by pins 35, 36. Further bridge members 46 are carried by supports 55 detachably mounted in sockets 56 and the fuses 52 are attached to clamps 51 on members 46. One member 17 of each pair is connected to a cable 31, the other being connected to one end of the appropriate fuse by a strap 69, the other cable 59 being connected to the other end of the fuse. The contacts 14 are preferably slightly staggered so that one end of the contact 15 makes first and breaks last, the loose mounting of the contact 15 on the bar 32 permitting this. One end of the bar 32 is connected by a link 60 to a snapaction mechanism comprising springs 65 and a lever 64 which is operated by an external handle by the engagement of lugs 67, carried by the handle, with a lug 68 on lever 64. The lugs 67 may be arranged to move below a projection on the end wall of the housing so as to prevent removal of the cover when the switch is closed.
Patent GB-1035479-A (GB)
Title: Fuel element for experimental nuclear reactors
IPC: G21C3/36
Filed: 1963-09-05
Abstract: 1,035,479. Fuel elements. CENTRE D'- ETUDE DE L'ENERGIE NUCLEAIRE. Sept. 5, 1963 [Sept. 6, 1962], No. 35085/63. Heading G6C. A fuel element for an experimental nuclear reactor comprises a plurality of arcuate fuel plates joined edge to edge by radially extending braces to form a series of coaxial tubes, said braces extending axially beyond the fuel tubes and having strengthening rings attached to their ends. There is thus provided a central cylindrical space within the element in which samples may be mounted for irradiation experiments. Three braces 2 support a series of arcuate fuel plates 1 in slots 3, which extend the full length of the braces of facilitate assembly. The end rings 9, 10 have slots which mesh with corresponding slots in the braces; after assembly, these joints are brazed, soldered, or welded as at 13.
Patent GB-1402534-A (GB)
Title: Wheel assemblies
IPC: F16D55/00
Filed: 1971-07-27
Abstract: 1402534 Wheel assemblies DUNLOP Ltd 18 July 1972 [27 July 1971] 35228/71 Heading F2E A wheel assembly comprises a wheel 1 having disc and rim portions 2, 3 and driving means for a brake disc 5, the driving means being in the form of a plurality of circumferentially spaced drive dogs 4 resiliently mounted adjacent the inner periphery of the rim portion 3 of the wheel 1 and arranged to extend substantially parallel to the intended axis of rotation of the wheel 1. In the construction shown the inner end of each dog 4 is provided with a spigot 11 mounted in a resilient bush 12 in the disc portion 2 of the wheel 1. At its outer end each dog 4 is connected to the rim portion 3 through a rubber shear mounting 13 which comprises a metal block 16 having a threaded shank 17 for securement to the rim portion 3 and a pair of rubber blocks 19 bonded to each side thereof and to the dog 4. The rubber connecting portion of the mounting may be annular and may be constructed for movement in shear in the radial direction of the wheel assembly (Fig. 4, not shown) or for movement in shear in the circumferential direction of the wheel assembly (Figs. 5, 6, 7, not shown). The rubber connecting portion may be replaced by helical springs (Figs. 8, 9, not shown). In a further embodiment the outer end of each dog is connected to the rim portion by a strip of metal of V- or T-shape (Figs. 10, 11, 12, not shown). The dogs may be connected to the wheel 1 by means of a flexible sheet metal drum the dogs being either welded to the drum (Figs. 13 to 15, not shown) or connected to the drum by tabs stamped out from the drum itself (Figs. 16 to 18, not shown). The drum may be provided with V-shaped cutouts adjacent its outer edge and be provided with strengthening ribs (Figs. 13 to 15, not shown). The drum reduces heat transfer between the driving dogs and the wheel rim portion.
Patent GB-197912-A (GB)
Title: Improved manufacture of photographic prints in colours
IPC: G03C7/20
Filed: 1923-11-02
Abstract: 197,912. Compagnie d'Exploitation des ProcÚdÚs de Photographie en Couleurs L. Dufay. Nov. 2, 1923. Colour photography; films with multiple sensitive Layers. - In the production of two-colour prints from coloured negatives, for example of the screen-plate type, by printing simultaneously on two emulsions of different chromatic sensitiveness spread on opposite sides of a thin transparent base, the two emulsions are relatively slow and fast in order to secure a balanced density of image, are coloured by known toning processes, and the print is mounted on a support which allows it to be viewed by reflected light. The Specification as open to inspection under Sect. 91 (3) (a) comprises also (1) the subjectmatter of the Specification 208,564, and (2) mounting the print while wet on paper, wood, ivory, metal, porcelain, &c., or coating it with metallizing varnish with which phosphorescent material may be incorporated. This subjectmatter does not appear in the Specification as accepted.
Patent GB-985367-A (GB)
Title: Improvements in and relating to apparatus and methods for drilling holes for examplein the ground
IPC: E21B10/64
Filed: 1963-09-09
Abstract: 985,367. Boring earth, &c. SERVCO CO. Sept. 9, 1963 [Sept. 14, 1962], No. 35472/63. Heading E1F. A drill bit 10 having discharge passages 52, 72 respectively for washing and jetting fluids is adapted to receive a stopper 90 for closing the passage 72 and a tubular member 130 for closing the passages 52. The bit is disposed adjacent a milled-out portion of a casing 18, the stopper is lowered into the central bore 22 of the bit, and washing fluid is pumped to the bore to issue from the passages 52 to remove detritus. The stopper is removed and cement is pumped through the bore to form a plug 104 which initially extends into the upper part of the casing. A tube 110 is inserted into the bore to which drilling fluid is supplied whilst the bit is rotated to drill away the upper part of the plug, the fluid issuing from passages 64. After the top of the plug has been removed the tube is replaced by the tubular member 130, and drilling fluid supplied to the bore discharges from the passage 72 to form a cavity 150. The tubular member is replaced by the tube and the bit is rotated, the bit sliding into the cavity so that further bit rotation cuts an angled hole. Instead of cutter blades 70 the bit may have roller cones.
Patent GB-1015384-A (GB)
Title: Improvements in assemblies of semiconductor rectifiers
Filed: 1964-08-31
Abstract: 1,015,384. Rectifying. MASCHINENFABRIK OERLIKON. Aug. 31, 1964 [Sept. 3, 1963], No. 35611/64. Addition to 853,373. Heading H2F. [Also in Division H1] A semi-conductor rectifier constructional arrangement (see Division H1) wherein a plurality of semi-conductor diodes are mounted in association with a tube 1 carrying cooling fluid, is such that each diode 2 is connected with a fuse 4 (Fig. 2, not shown). The arrangement may be directly connected with a transformer or may be separate in a cabinet.
Patent GB-428308-A (GB)
Title: A device for teaching music
IPC: G10G1/02
Filed: 1933-12-18
Abstract: 428,308. Teaching music. KOHN, C. L., 50, Hepworth Road, Streatham, London. Dec. 18, 1933, No. 35626. Drawings to Specification. [Class 88 (ii)] A device for use in teaching music and showing the relation between corresponding scales of different modes, comprises one circular disc marked in a number of equal main sectors corresponding to the number of modes considered (say four, i.e. one major and three minor modes), each main sector being subdivided into an equal number (eight) of smaller sectors corresponding to the scales in the different sharp (or flat) keys of the particular mode, and a second circular disc having four symmetrically spaced radial slots equal in size to the smaller sectors of the first disc, the discs being attached at their centres for relative rotary movement, so that in any position of register of the slots with the smaller sectors, information concerning related scales of different modes is exposed to view. The slotted disc carries information relating to individual notes against the sides of its slots. The reverse side of the first disc may carry similar markings for flat (or sharp) keys, an additional slotted disc being provided therefor.
Patent GB-478853-A (GB)
Title: Improvements in thermo-electric relays
IPC: H01H37/50
Filed: 1936-12-29
Abstract: 478,853. Thermal switches. WAGNER, G. E. Dec. 29, 1936, No. 35660. Convention date, Oct. 3. [Class 38 (v)] A thermal switch comprises a wire 4 fixed at one end to an adjustable terminal member 9 and at the other end to one arm of a lever 2 pivoted at 3 and carrying an arm 6 provided with a contact 14 engageable with a contact 13 in electrical connection with the terminal 9. A contact arm 20 pivoted at 18 is connected by an insulating member 19 to the wire 4. When current is supplied to the points 3, 9 the wire 4 is heated and expands allowing a spring 5 to move contact arm 20 to engage a terminal 22 and complete a circuit. Further expansion of the wire 4 allows springs 5 to move arm 6 so that contact 14 engages contact 13 and short circuits the wire 4 which then contracts to cause heating to be resumed. The parts are adjusted so that interruption occurs at 13, 14 at a mean current value just in excess of that required to close contacts 20, 22, which mean value is maintained by the continuous interruption at 13, 14, so that if the current falls below this value, contacts 20, 22 are opened at once.
Patent GB-1009839-A (GB)
Title: A waveshaping circuit
IPC: H03K3/315
Filed: 1962-09-19
Abstract: 1,009,839. Tunnel diode circuits. SPERRY RAND CORPORATION. Sept. 19, 1962 [Oct. 2, 1961], No. 35716/62. Heading H3T. A wave-shaping circuit comprises two tunnel diodes 104, 106 having a bias supply 120, so connected that the two diodes are in opposite states, and a control circuit comprising two further tunnel diodes 102, 108 with a bias source 126, 128 connected between a signal source 100 and the diodes 104, 106. The arrangement being such that a positive input signal is applied to diode 104 and a negative input is applied to diode 106, whereby switching of the diodes is effected. The changes in potentials at B, C are used as outputs and also apply the triggering pulses to the bi-stable circuit comprising tunnel diodes 104, 106. If source 100 is a sinewave signal, the circuit functions as a squarer, the clipping points being determined by the bias on diodes 102, 108. In a modification, Fig. 4, the individual bias circuits 116, 126 and 124, 128 for the diodes 102, 108 are replaced by a common circuit 420, 422 and the balanced source 100 may be replaced by an unbalanced source 100a and a pair of resistors 401, 402. Capacitors 110, 114 may be replaced by resistors 403, 404 to overcome hysterisis.
Patent GB-933162-A (GB)
Title: Improvements in or relating to electrical contact devices
Inventor: ROBINSON DOUGLAS BURTON
IPC: H01R13/15
Filed: 1959-10-22
Abstract: 933,162. Two-part couplings. BROOKHIRST IGRANIC Ltd. Jan. 6, 1961 [Oct. 22, 1959], No. 35807/59. Class 38 (1). An electrical contact device comprises a pair of conductive jaws 4, each formed of a plurality of contiguous sliding laminations 8, the jaws member 3 and urged to grip the bus-bar 1 by resilient silicone rubber pads 6. The pivot member 3 which may be of rectangular crosssection (Figs. 4 and 5, not shown), and the pad support 6 are fastened to a base plate 2. More than one pair of such jaws may be provided (Figs. 1 and 2, not shown).
Patent GB-1415033-A (GB)
Title: Self cleaning filter
IPC: B01D29/62
Filed: 1973-07-27
Abstract: 1415033 Self cleaning filter EVRON KIBBUTZ HASHOMER HATZAIR LEHITYASHVUTH SHITUFIT BM 27 July 1973 [3 Aug 1972 35880/73 Heading B1D A tubular filter element 8 is continuously cleaned by reciprocating brushes 9 and 10 actuated by alternate delivery of filtrate to opposite sides of piston 6 in cylinder 5. Water passes from inlet 2 to outlet 3, and filtered water is recycled through line a to a four way valve 11 which directs flow to the top or bottom of the piston. The brush engages abutments 14 and 15 to shift valve 11 and hence reverse the piston movement at the end of each stroke. Elements 8 may be circular or square section. Abutments 14 and 15 may be adjustable. Housing base 16 is removed to discharge dirt periodically.
Patent GB-1312745-A (GB)
Title: Phenoxazonium salts
IPC: D06P3/14
Filed: 1971-07-30
Abstract: 1312745 Benzoxazines L'OREAL 30 July 1971 [31 July 1970] 35994/71 Heading C2C [Also in Division C4] In Example 10 N-ethyl-6-hydroxy-phenomorpholine is prepared by reacting 6-hydroxyphenomorpholine with ethyl iodide, adding methyl isobutyl ketone, filtering off N,N-diethyl - 6 - ethoxy - benzomorpholinium iodide, which on distillation in vacuo yields N-ethyl-6- ethoxy-phenomorpholine, and evaporating the organic phase to dryness also to obtain N-ethyl- 6-ethoxy-phenomorpholine. Reaction of the product with HBr forms the hydrobromide of N - ethyl - 6 - hydroxy - phenomorpholine which is converted to the free base by ammonia.