baber/WOPTO huggingface dataset:
Patent GB-254770-A (GB)
Title: Improvements in electrical protective arrangements for alternating current systems
IPC: H02H3/30
Filed: 1925-03-10
Abstract: 254,770. King, A. J., Brown, W. J., and Metropolitan-Vickers Electrical Co., Ltd. March 10, 1925. Cut-out arrangements for three-phase alternating current circuits in which pilot wires are dispensed with employ at each end of the section of line to be protected, two oscillators which each supply superimposed currents to the line at periods of the main alternating current cycle which are phase displaced from one another. At each end of the section a protective relay or relays is located tuned to the one or more beat frequencies which are set up between the superimposed currents upon the occurrence of a fault on or between any or all of the phases of the line. The arrangement at each end of the section is the same and, as shown in Fig. 1, consists of two oscillation, generators 3, 4 and a receiver 5. The generators are three-electrode valves connected to produce continuous oscillations, on positive and negative half cycles respectively of the line current which co-operate with the oscillations produced at the other end by the negative and positive half cycles. Normally no beat frequency results, but when, on fault, a phase displacement occurs between the currents at the two ends a beat frequency is produced which operates the tuned receivers. The anodes of the valves are supplied through transformers 12, 13, 14 in the phases, Z-connected, the reversed transformer winding being in the two cases in different phases. In order that one receiver only may be used at each end the four oscillators are chosen so that the beats formed between pairs will be the same. If. for example, the summation beat note is employed, the sum of the frequencies of the first (counting from the left) and third is made equal to the sum of the second and fourth. The difference beat note may, however, be used. A single set of current transformers may be used for both generators at each end. The anodes may be energized independently of the line current and to generate continuous oscillations damped out in accordance with the alternations of the line current as described in Specification 254,771 and the beat frequency may be supersonic as described in Specification 252,810. Specification 252,036 also is referred to.
Patent GB-1001223-A (GB)
Title: Improvements in apparatus for annealing continuous metal bands in a vacuum
IPC: C21D9/62
Filed: 1963-02-19
Abstract: <PICT:1001223/C6-C7/1> In vacuum apparatus for the continuous heat-treatment of material such as strip the treatment chamber is enclosed by liquid seals and the heat is developed by direct passage of electric current through the material under treatment, the current being introduced by means of molten metal contacts.  The apparatus is further characterized by consisting of a plurality of vessels arranged in two planes one above the other, the upper vessels forming vacuum chambers and the lower ones forming liquid containers, and the upper and lower vessels being connected with each other by vertical tubes.  As illustrated, upper vessels 4 and 5 constitute vacuum chambers while lower vessels 1 and 2 contain liquid metal, e.g. tin or lead, and vessel 3 contains a molten salt, which may be such as to effect a cleaning action on the emergent metal.  The liquid in baths 1 and 3 serves to seal off the treatment chambers from the atmosphere while bath 2 divides the apparatus into heating and cooling sections, the molten metal in vessels 1 and 2 forming contacts by means of which current introduced by electrodes 21 is caused to traverse the strip.  Vertical tubes 8, 9 of the cooling section may be cooled externally or saturated steam may be injected into them to cool the strip.
Patent GB-1023262-A (GB)
Title: Improvements in or relating to percussion-type nut-crackers
IPC: A47J43/26
Filed: 1963-02-19
Abstract: 1,023,262. Nutcrackers. M. P. CALIPPE. Feb. 19, 1963 [Feb. 21, 1962], No. 6635/63. Heading A4A. A nutcracker comprises a support base, a push-knob 10 connected to said base by coupling means formed by a system of rods 6-9 linked to provide articulated diamonds arranged to permit rectilineal movement of the push-knob 10 along a path passing substantially through the centre of the base, and at least one percussion member 14 connected to the push-knob 10 to move along the said path. The articulated links 6-9 are pivotally connected at one end to a pivot pin 11 carried by the push-knob 10 and at the other end by pivots 5 to a ferrule 2 mounted for rotation through 180 degrees on a centering bridge 3 secure to a base cup 1. Projections 21 on the links 9 engage a yoke 22 urged by a spring 12 downwardly from the push-knob 10. Jaws 16 are provided on the links 7 opposite the percussion bulges 14. In operation the compression of the linkage 6-9 and hence the degree of penetration into the nut shell 25, 26 is limited by abutment of the links 6 with an inclined spirally arranged surface 18 of the cup 1, and by suitable rotation of the push-knob 10, links 6-9 and ferrule 2 the position of the abutment may be adjusted.
Patent GB-882749-A (GB)
Title: Improvements in and relating to electric power meters
IPC: G01R11/10
Filed: 1958-03-03
Abstract: 882,749. Eddy-current brakes. OFFICINE GALILEO S.p.A. March 3, 1958 [March 2, 1957], No. 6675/58. Class 35. An electric power meter has a rotor 1 braked by two permanent magnets 5 so movable by a mechanism that their polar ends move simultaneously towards each other along paths which in Fig. 1 intersect adjacent the rotor axis 0 or in Fig. 5 pass through the rotor axis. The mechanism comprises in the Figs. 1 and 3 embodiment a lead-screw 13 rotatably mounted in the meter frame 6 to axially move a nut 12 carrying a pin 11 engaged in slots 10 of overlapping arms 9 extending from the magnets 5 which are hinged on pins, and in the Fig. 5 embodiment a screw 15 having right- and lefthand threaded portions carrying correspondingly threaded nuts 14 slidable in a fixed guide groove 16 and conveying to the magnets 5 a linear motion. The magnets may be of the horseshoe type as shown in Fig. 3 or have two opposite and magnetically interconnected magnets M as in Fig. 4; additionally one magnet 5 may be displaceable independently of the other. The invention is also applicable to several superimposed single phase meters whose respective rotors are secured to a common shaft.
Patent GB-1033212-A (GB)
Title: Improvements relating to air extraction from toilet bowls
Inventor: BELCHER BASIL JOHN SAUNDERS
IPC: E03D9/052
Filed: 1963-02-19
Abstract: 1,033,212. Ventilating closets. SILAVENT Ltd. Feb. 18, 1964 [Feb. 19, 1963], No. 6678/63. Heading E1C. A ventilated toilet comprises a bowl 3 with a back shelf 8, on which a seat is pivotally mounted above the bowl 3, an air collector 10 freely hinged about the seat pivot or pivots 6 with an air intake opening 13 to collect air from the bowl 3, directed substantially downward on to the shelf 8, and an air extraction duct leading from the collector 10 when in use to beneath the shelf 8 and a suction outlet. The opening 13 may be directed downward and somewhat forward from the vertical. There may be a smaller air intake opening in the rear of the collector 10. There may be a projection 15 above the level of the shelf 8 at the entrance to the said duct which may be a pipe 14 with a flange around the mouth in a hole 9 in the shelf 8. In a modification a pipe 14 with a hole in its side corresponding with the hole 9 is clamped up against the shelf 8 by a bolt which is an extension of a pivot pin and passes through a collapsed end of the pipe 14. The air collector 10 comprises a front section 11 into which a rear section 12 merges and in a modification the opening 13 may be restricted to a horizontal one facing directly downward by having walling at the back of the section 11.
Patent GB-800291-A (GB)
Title: Improvements in or relating to detergent compositions
IPC: C11D3/28
Filed: 1957-02-28
Abstract: A detergent composition is prepared by spraydrying a slurry containing, in addition to an organic synthetic detergent, a 2-allkyl-4 : 4-bis (hydroxymethyl) oxazoline of the general formula: <FORM:0800291/III/1> where R is an alkyl group of 9-13 carbon atoms. The oxazoline, which is generally present in an amount of 0.5-5 per cent of the non-aqueous ingredients of the slurry, is preferably that in which the alkyl group is n-hendecyl.  The detergents which may be used include sec.-alkyl sulphates, alkane sulphonates, acyl taurides, cetyltrimethylammonium bromide and condensates of ethylene oxide with alkylphenols, but preferably an alkylaryl sulphonate or a sulphonated fatty alcohol is used.  Sodium carbonate, silicate, sulphate and condensed phosphates, sodium toluene sulphonate, sodium carboxymethylcellulose, colouring agents and perfumes may also be incorporated.
Patent GB-823362-A (GB)
Title: Improved recording apparatus including means for projecting light onto a movable light-sensitive strip
IPC: H04H60/44
Filed: 1955-11-21
Abstract: 823,362. Recording apparatus. NIELSEN CO. Ltd., A. C. (Nielson Co., A. C.) Nov. 21, 1955, No. 6741/59. Divided out of 823,361. Drawings to Specification. Class 106 (4). [Also in Group XX] An apparatus, for recording information concerning the selected stations to which a radio receiver is tuned at different times, includes an electric light source, a rotary switch for controlling the energization of the source, means for moving a light-sensitive strip, an optical system for projecting light on to the strip, a movable element between the strip and the source having a plurality of light transmitting portions, and means for operating the light source and the rotary switch together to expose different selected areas of the sensitive strip. The apparatus is as described in Specification 823,361. Specification 823,363, [Group XX], also is referred to.
Patent GB-1457141-A (GB)
Title: Electric switch
IPC: H01H36/00
Filed: 1974-02-14
Abstract: 1457141 Magnetic switches INTERNATIONAL STANDARD ELECTRIC CORP 14 Feb 1974 [16 Feb 1973] 6754/74 Addition to 1439788 Heading H1N In a magnetic switch utilizing one or more contact units as claimed in claim 1 of the parent Application, the inner and outer portions 12, 13 of the base plate are both ferromagnetic and are bridged by armature 15 when a displaceable ferromagnetic member 18 of a magnetic circuit including a source of flux, e.g. permanent magnet 17 is in position 1 and are disconnected by the armature 15 when the ferromagnetic member 18 moves to a second position 2. As shown a flux return member 19 is slotted to guide displaceable ferromagnetic member 18. In other embodiments the flux return member 19 is replaced by a sealed magnetic contact unit, identical to unit 3 and arranged parallel to unit 3 and with its base plate facing the base plate of unit 3. The displaceable member, which may be the permanent magnet or the ferromagnetic member 18, is movable from a position bridging the central ferromagnetic regions 13 of the units in which the contact units are closed, to a position bridging the outer regions in which the contact units are open. In Fig. 5, not shown, a movable U- shaped magnetic member bridges a pair of magnetic sheet metal members secured to the central regions of the contact units in the first position to enable the fixed permanent magnet to close the contact units. In Fig. 6 (not shown), a displaceable ferromagnetic member carries a laterally extending pair of ferromagnetic arms which in the second position magnetically bridge the inner and outer regions of the base plates of the contact units to enhance the diversion of flux from the armatures. In Figs. 7 and 8, not shown, a pair of overlapping spaced ferromagnetic plates secured to the centre regions 13 of the base plates connect the regions magnetically in series. A fixed permanent magnet is provided between the outer regions and a U-shaped ferromagnetic member, one limb of which is secured to the outer region 12 of one base plate whilst the other limb is spaced from the outer region of the other base plate is mounted with its limbs adjacent the magnet polepieces. A magnetic member movable between the said other region of the other base plate and the magnet, causes flux to be diverted to the contact units or the U-shaped member depending on its position. In Fig. 9 (not shown) two contact units with ferromagnetic covers 11 are mounted side by side in a common plane. A fixed ferromagnetic member bridges the covers. The poles of a movable permanent magnet bridge the inner regions of the units in one position and cause the armatures to bridge the covers and the central regions. In its other position the poles bridge the outer regions 12 so that flux passes from the magnet through the outer region 12 of the first unit, its cover, the fixed ferromagnetic member, the cover of the second unit, its outer region back to the magnet so that the armatures are released. The switches are for push button or key switches used in telephones.
Patent GB-589192-A (GB)
Title: Heater
IPC: F24B13/02
Filed: 1945-03-17
Abstract: 589,192. Flue blocks. DEHN, F. B. (Locke Stove Co.). March 17, 1945, No. 6770. [Class 87 (i)] [Also in Group XI] In a closed solid fuel stove having a refractory lining, part of the latter is constituted by flues each comprising a vertical tier of hollow blocks, the abutting faces of the inner walls of the blocks having cut-away portions which co-operate to form horizontal slots through which the gases distilled from the fuel column pass into the flue where they are burnt with air passing upwardly from the ashpit. Figs. 2, 3 show a circular stove in which the lining consists of arcuate blocks 41, 42 and oppositely disposed flues built up of tiers of hollow blocks 26 each having radial end walls 30, 31 and a flat inner wall 29, the latter being formed on its upper and lower faces with indentations 40, 40<1> which co-operate when the blocks are assembled to form the horizontal slots 39. The outer faces and top surface of each block 26 are formed with grooves 41<1> to provide weak points which fracture under uneven expansion and so prevent disruption of the whole lining. In the modification shown in Fig. 5 the stove is of square section with the tiers of hollow flue blocks 51 arrange in the corners and separated by the lining slabs 50.
Patent GB-875211-A (GB)
Title: A method of making overshoes and the like
Inventor: ALEXANDER HARRY
IPC: A43B3/16
Filed: 1959-02-27
Abstract: 875,211. Overshoes. ALEXANDER & CO. Ltd., S. M. Feb. 12, 1960 [Feb. 27, 1959], No. 6863/59. Class 17(2) In a method of making overshoes, overboots and waders, two superposed plastic sheets are heat-sealed together so as to define a blank of the required shape, Fig. 2. The blanks are preferably formed from either single sheets, folded once, or, two at a time joined at an ankle portion 4, from lay-flat tubing. The sole portion 6 of the overshoe is positioned at the fold 2, as shown. The heat-sealing is carried out in a known manner to produce "tear-seals" 3, the excess material being stripped off along the lines of sealing. Further heat-seals 10, 11, Fig. 6, are made at the toe and heel after separating the sheets about the fold 2. Suitable plastics are P.V.C. and polyethylene.
Patent GB-344659-A (GB)
Title: Improvements relating to linings for rope and the like discs and pulleys
IPC: F16H55/50
Filed: 1930-03-03
Abstract: 344,659. Pulleys. BECKER, W., 18, Michaelstrasse, Speldorf, Mulheim, Germany. March 3, 1930, No. 6956. [Class 80 (i).] To improve the grip between a rope &c. and its pulley, an undercut groove b in a wooden liner a in the pulley rim is filled with discs alternately of vegetable-tanned grain leather and of chrome leather, all of which may be soaked in hardening oil.
Patent GB-1440277-A (GB)
Title: Multi-stage vacuum-cleaner compressor
IPC: F04D17/12
Filed: 1974-02-15
Abstract: 1440277 Multi-stage centrifugal compressor PHILIPS GLOEILAMPENFABRIEKEN NV 15 Feb 1974 [2 March 1973] 6963/74 Heading F1C In a multi-stage vacuum cleaner centrifugal compressor in which each impeller is surrounded by a diffuser having guide vanes, the impeller of the last stage has a greater number of runner vanes than the impeller of the preceding stage. The impellers 3, 5 of the two-stage compressor illustrated are surrounded by diffusers 4, 6 having guide vanes 10, 13, and the first stage impeller 3 is of conventional construction and has six runner vanes on each side, whilst the second stage impeller 5 has several runner vanes of number and arrangement determined as described in Specification No. 1431358.
Patent GB-891305-A (GB)
Title: Improvements in or relating to arrangements of sound recording and reproducing machines controllable by remote control means
Inventor: DUNNING ROLF
IPC: H04M11/10
Filed: 1958-03-05
Abstract: 891,305. Centralized dictation systems. AUTOPHONE Ltd. Feb. 24, 1959 [March 5,1958 No. 7021/58. Class 40 (4). In a centralized dictation system, different operations of a dictating machine are controlled by signals of different frequency transmitted from a substation. Keys are depressed to transmit the different frequencies but as a guard against failure to key the release signal, a short release signal is transmitted automatically when the handset is replaced. Three dictating machines are available to seven or more substations. Substation.-A transistor oscillator TS1 is tuned by an inductor L1, either with capacitors C1, C7 alone or with capacitors C1, C7 and one of a number of capacitors C2 to C5, C9. Transmission of the six frequencies is controlled by keys 1 to 6. At the end of a call, key 6 is depressed to transmit the release signal. When the handset, including microphone M and receiver R, is replaced, switch 10 connects negative battery to the oscillator through capacitor COND and the oscillator transmits another release signal to line during the charging period of capacitor COND. Capacitor COND is discharged through resistor R13 when the switch 10 is up. Central station.-In Fig. 2, DM denotes the recording coil of a free dictating machine allotted for the next cell. When the handset is lifted at a substation, relay L takes a first step and marks the corresponding contact of the c-bank in finder HS by disconnecting ground. Relay A, corresponding to the dictating machine shown, pulls up and is followed by J and D. The stepping magnet HSM steps the switch until C pulls up in series with L as the calling line is found. The line a, b is extended to the dictating machine and at contact c5 the: line is connected to the A relay of the next free machine. Relay L takes the second step and guards against further calls. If all the machines are busy, relay G pulls up and buzzer BZ gives a tone signal to the calling line. The line a, b may be extended to another dictating machine over contact FC whatever the state of relay C, but the control for FC is not described.
Patent GB-565932-A (GB)
Title: Improvements in and relating to apparatus for reducing fatigue
IPC: B60N2/75
Filed: 1943-05-06
Abstract: 565,932. Suspensory apparatus for reducing fatigue. SHIELDS, H. D. May 6, 1943, No. 7180. [Class 141] [Also in Group XIV] Suspensory apparatus for reducing fatigue of vehicle drivers, machine operatives, &c., comprises a harness or sling to support the body of the wearer with a resilient overhead suspension so arranged as to leave freedom of movement for the arms. The sling may consist of a strap 1, padded at 2, 3 where it passes under the armpits of a wearer, attached by eyes 4, 5 to chains 6, 7 which are adjustably attached, to suit the wearer, to S-hooks 8, 9 engaging swivels 10, 11 at the ends of torsion springs 12, 13 suspended from hooks 14, 15 on a bar attached,to the roof of a vehicle, or to a light superstructure on the back of a chair, stool or the like. Elastic bands with adjusters may be substituted for the chains and springs and the harness may include a chest strap with or without shoulder straps, in which case a quick-release fitting as used for parachute harness may be provided.
Patent GB-762300-A (GB)
Title: A new or improved device for use in coupling trailer vehicles to tractors
Inventor: GRANT KENNETH ALEXANDER
IPC: B60D1/36
Filed: 1954-03-12
Abstract: 762,300. Tractor-trailer couplings. BROCKHOUSE & CO., Ltd., J. March 11, 1955 [March 12, 1954], No. 7180/54. Class 103(5). [Also in Group XXXIV] A coupling assembly, Figs. 1, 2 and 3, is for use with a tractor vehicle having a pair of widely spaced ramps 23 at its rear end, and may be mounted in the tractor to provide a more closely spaced pair of ramps 15 so that the tractor may be coupled to trailers having different coupling attachments. The assembly which may be stood up on the ground, Fig. 1, on its two ramps 15 and foldable legs 31, comprises a main transverse member 14 to which the ramps 15 are fixed, a transverse rear channel member 18 extended by tubular portions 19 carrying clamping strips 22 adapted to engage with the existing tractor ramps 23, main trailer coupling jaws 39, 39a, and a pair or pairs of adjustable jaws 24, Fig. 2, adapted to grip a cross member 12 on the tractor. Each leg 31 is pivoted at 33 to the member 14 and is provided with a hinged catch 36 and a pin 37 for engaging in a hole in the part 19 when the leg is swung up. In operation, the assembly is stood on the ground, Fig. 1, and the tractor is backed so that the tractor ramps 23, Fig. 2, extend rearwardly on each side of the assembly and engage beneath skid plates 40 on the member 14. The rear ends of the ramps 15 are then raised and the tubular portions 19 engaged with the ramps 23. The assembly is now pushed forwardly until the jaws 24 may be clamped to the cross bar 12, whereupon the clips 22 are tightened to clamp on the ramps 23, and the legs are raised and fastened to the cross members 19. Coupling may now take place in the manner described in Specification 740,737. The coupling hooks 39 are connected by a cross bar 50 carrying two pairs of brackets 51 each mounting a roller 52, one at least of these rollers 52 engaging with the upper side of the trigger 14 extending from a hook 8 as described in Specification 522,461. The cross bar 50 is biassed in a downward direction by springs 53 so as to engage the roller 52 with the trigger 14 of Specification 522,461 and to displace the coupling hooks 39 towards their coupling position. With such an arrangement when it is desired to uncouple from the trailer a tractor in accordance with Specification 522,461 provided with an attachment device in accordance with the present Specification, the rod 17 in Specification 522,461 is pulled to move the hook 8 thereby raising the trigger 14, and the roller 52 of the present Specification and consequently the cross bar 50 to disengage the coupling hooks 39, whereupon uncoupling is effected as described in Specification 740,737. A braking linkage, (see Group XXXIV) is described to wprk in conjunction with the systems of Specifications 522,461 and 740,721 [Group XXXIV].