baber/WOPTO huggingface dataset:
Patent GB-552981-A (GB)
Title: Improvements in and relating to flatirons
IPC: D06F75/34
Filed: 1942-07-01
Abstract: 552,981. Hand-irons. BRITISH THOMSONHOUSTON CO., Ltd. July 1, 1942, No. 9057. Convention date, July 2, 1941. [Class 138 (ii)] [Also in Group XI] A flat iron comprises a solepate 10, electric heating element 11, pressure plate 12, cover 13, and handle 26 hinged at one end. A bimetallic temperature indicator 21 is visible through a slot 24 in the cover. The handle is supported in its upper position by a member 28 pivoted at the cover plate and secured by a latch 33 on the under surface of the handle. The rear end of the handle is bifurcated to form two spaced legs' 37 the ends of which are received in socket members 39 secured to the cover 13. When not in use, the handle 26 and support 28 may be folded down to make the iron more compact. The. contact pins 19 extend upwardly between the legs 37 and are enclosed between a U-shaped stationary member 43, 'and a U-shaped movable member 44 which, when the handle is folded down, may be rotated about its pivot 47 to enclose the contact pins. Specification 295,526, [Class 138 (ii)], is referred to.
Patent GB-692748-A (GB)
Title: Improvements in packaging apparatus
Inventor: GOACHER HAROLD
IPC: B65B1/22
Filed: 1951-04-19
Abstract: 692,748. Packaging apparatus. ROSE BROS. (GAINSBOROUGH), Ltd. Feb. 15, 1952 [April 19, 1951], No. 9116/51. Class 94(i) Apparatus tor packaging tea in paper bags or cartons, of the kind wherein bags 11 are fed to the pockets 12 of a rotatable pocket member 13 which conveys the bags through a filling mechanism, comprises an auxiliary bag support 16 arranged below the pockets of the pocket member and formed on its supporting surface with one or more ribs 17 adapted to pass into a corresponding recess or recesses 15 in the lower portion of a pocket or pockets 12 in the pocket member 13, and means for oscillating the bag support 16 to impart vibratory motion to the base or bases of the bag or bags. The support 16, of arcuate form, acts as a continuation of a bag-supporting channel 14 and is reciprocated vertically by link means 26, 27, 31 adjustably connected to a pivoted arm 34 by an eccentric in a housing 39. The link 31 is secured to an adjusting member 32, movable along a slot in the arm 34 by a handle 47, the member 32 being held in position by spring catch means engaging depressions in the arm 34.
Patent GB-693914-A (GB)
Title: Improvements in or relating to commutators for electrical machines
IPC: H01R43/08
Filed: 1950-04-13
Abstract: 693,914. Electric commutators. SOC. ANON. DES MACHINES ELECTROSTATIQUES. April 13, 1950 [April 15, 1949], No. 9127/50. Class 35. The electric stress between the segments of a high - voltage commutator for electrostatic or dynamo-electric machines, is reduced by interposing one or more interconnected segments between those which are active, the segments being separated by airspaces. In the form shown in Fig. 3, the segments comprise a series of bars 1 on the surface of a plastic cylinder 2 which is moulded with flanges 3 at each end which grip the ends of the bars. Every third bar is connected by a lead 6 passing through or between the flange sections at one end. The commutator is made by moulding a cylinder in place and then separating the segments by cutting the slots between them. In an axial form, Fig. 4, a flat conducting ring having bevelled edges is moulded into an insulating ring 8, every third segment after slotting, having a connector 6. In a further modification, metallic bars are secured to the face of an insulating disc.
Patent GB-1494543-A (GB)
Title: Effervescent bleaching composition
IPC: C11D7/54
Filed: 1975-03-05
Abstract: 1494543 Sodium percarbonate KAO SOAP CO Ltd 5 March 1975 [18 March 1974] 9144/75 Heading C1A [Also in Divisions C5 and Dl]  An effervescent sodium percarbonate for use in a bleaching composition, comprises solid sodium percarbonate which has been subjected to heating at a temperature of from 75-135‹ C., the heating time being such that oxygen molecules become trapped within the sodium percarbonate, and preferably ranging from 2-6 hours at 75‹ C. to 5-30 minutes at 135‹ C. (the heating time for temperatures between 75‹ and 135‹ C. being determined by interpolation. An activator is added to the percarbonate before or after the heating, in an amount of 5-200% by wt. based on the percarbonate, and may be glucose pentaacetate, sorbitol hexaacetate, sodium acetoxybenzene sulphonate, tetraacetyl glycoluril, tetraacetylethylene diamine, succinic anhydride or phthalic anhydride. The composition is storage stable and may further contain one or more of sodium sulphate, sodium carbonate, sodium silicate, and anionic, non-ionic and amphoteric surfactants. Sodium tripolyphosphate and an oxyethylene/oxypropylene block polymer (MW 8000) may also be present. The composition, which may be particulate, may be dissolved in water to provide 0À02-4 wt. per cent percarbonate, based on the solution.
Patent GB-239562-A (GB)
Title: Improvements in or relating to synchronous telegraphy
IPC: H04L25/04
Filed: 1924-04-10
Abstract: 239,562. Foll, J. V. April 10, 1924. Curbing at transmitter; repeating sytems using contact-making relays; restoring or modifying imperfect signals; synchronous movements and synchronism indicators; distributor systems. -In a system of synchronous telegraphy the recording or repeating of the signals is controlled by synchronized mechanically-driven contactmaking apparatus which determines mechanically both the beginning and the end of the signals. The invention may also be applied to the control of primary manual transmitter. A set of continuously-driven cams is employed for this control. The actuation of repeating relays h<1>, h<2> depends not only on the position of the main relav A but also on the closure of a contact c<3> by a pick-up cam C which shortens resistance c<6>. A repeating cam D driven by the same gear wheel G acts on levers d<1>, d<2> to move biassing rollers d<6>, d<7> into or out of the path of the levers H, H<1> actuated by the electromagnets h<1>, h<2> and so determines the percentage of marking of the repeated signals. The repeating cam D may also act as the pick-up cam and in systems without a zero one of the levers H, H<1> and one of the electromagnets h<1>, h<2> may be omitted. The system may be provided with a key M for manual transmission, a switch m<2> enabling the transmitter to be cut into and out of the circuit. The keys m can only be operated when released by magnets m<1> the circuits of which are closed at c<4> by the pick-up cam C. This manual transmission method may also be employed in a primary manual transmitter to enable synchronism to be maintained. The invention may be adapted to a system in which the signals received are sent successively into two or more lines by multiplying the cam D and the mechanism it operates, whilst a corresponding number of levers and contacts is operated by the pickup cam C to short-circuit resistances ensuring that the received signals are sent successively into the various lines. Cams E, F are employed to indicate and maintain synchronism. The motor gear wheel G is driven slightly faster or slower than is required for synchronism and the cam E closes a circuit for a correcting-device of known type. The cam F driven at half the speed of the remainder closes in succession the circuits of lamps j which are completed intermittently through the contact lever l of the electromagnet L energized by the battery K<1> under the action of the incoming relay A. When the lamps light up in proper order the instrument has been adjusted to signalling speed. Cams C, D, E may alternatively be arranged on a common shaft and cam F driven by a gear wheel on the same shaft.
Patent GB-1368226-A (GB)
Title: Capacitor-diode voltage multipliers
IPC: H02M7/10
Filed: 1973-02-26
Abstract: 1368226 Semi-conductor devices; capacitors; component assemblies PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd 26 Feb 1973 9279/73 Headings H1K H1M and H1R [Also in Division H2] A capacitor-diode voltage multiplier comprises a first ceramic plate 31 having electrodes deposited thereon to form one or more pulsefeeding capacitors and a second ceramic plate 32 co-planar with the first and having electrodes deposited thereon to form two or more storage capacitors, the capacitors being interconnected by (2n - 1) diodes D1 ... D5 where n is the voltage multiplication factor. The invention is applicable to deriving EHT voltage for the cathode-ray tube of a TV receiver from line flyback pulses. The ceramic plates 31, 32 may have dielectric constants in the range 500- 14,000; the electrodes 34 ... 39 being, e.g. solder deposited by photo-lithographic, vacuum deposition or silk-screen techniques. Alternatively electrodes of conducting epoxy resin may be employed. The ceramic plates 31, 32 may be formed as a single plate having gaps 61, 62 as shown and joined by members 41, 42 which may be removed after fabrication. The diodes D1 ... D5 may be moulded into a block 51 having solder posts 52 to line up with corresponding solder posts 53 on the two plates 31, 32. The block 51 is placed over the plates 31, 32 and the assembly heated to the melting point of the solder. The finished multiplier is encapsulated in epoxy resin in the same housing as the line transformer or in the socket for the cathode-ray tube. The multiplier may employ several voltage triplers (Fig. 2, not shown) connected in series. Modifications.-In Fig. 6 (not shown) a single ceramic plate may be formed having an H- shaped slotted portion so that the horizontal bar of the H separates the two plates, the narrow sections between the vertical bars of the H and the outside edge being later snapped off. A clipper diode may be connected across the input and a current limiting resistor connected in series with the output.
Patent GB-720209-A (GB)
Title: An improved edged tool of wedge formation for splitting solids by driving with percussive blows
Inventor: MEIGH CHARLES HAROLD
IPC: B25D3/00
Filed: 1952-04-15
Abstract: 720,209. Wedges. MEIGH CASTINGS, Ltd. April 7, 1953 [April 15, 1952], No. 9354/52. Class 89 (2). A wedge has its operative sides a, Fig. 1, formed as flat plates rigidly interconnected by a web b to form a girder section or by two webs to form a hollow box section. Lightening holes c may be provided in the web or webs. The plates are curved at the striking end of the wedge and terminate in a striking block d. Alternatively a shank e, Fig. 3, may replace block d for receiving blows from mechanical means. The wedge may be made by casting, forging or stamping, or fabricated by welding.
Patent GB-339223-A (GB)
Title: Improvements in and relating to dock-struts or stays
IPC: B63C5/02
Filed: 1930-03-25
Abstract: 339,223. Nederlandsche Dok-Maatschappij Naamlooze Vennootschap. June 1, 1929, [Convention date]. Docks.-An adjustable dock-strut or shore consists of coaxial telecopic parts 12, 6, connected by transverse pins or the like. Figs. 2 and 4 show a strut, the outer part of which consists of two channel-irons 6 connected by transverse strips 7; it encloses a beam consisting of channel-irons 12 connected by strips 13, and the two telescoping members are adjustably connected by pins 22 in suitably-pitched poles. At the outer end of the part 12 is a shackle 18, and also a bearing-block 16 pivoted at 15; at the outer end of the part 6 may be a screw jack. Angle-irons 23 are attached to parts of the channels 6, and have a series of perforations 24 for receiving D-shackles 25.
Patent GB-1427591-A (GB)
Title: Recliner chairs
IPC: A47C1/0355
Filed: 1973-02-27
Abstract: 1427591 Rocker-recliner chairs ROYAL DEVELOPMENT CO Inc 27 Feb 1973 9505/73 Heading A4J A recliner chair preferably a rocker-recliner comprises, on each side of the chair, a linkage mechanism 154 and 170 connected between the seat mounting plate 22, footrest linkage 90-112 and rocker-cam frame 16, 49 and operative to prevent the backrest 82 being reclined when the footrest is retracted and the footrest being retracted when the backrest is reclined. The footrest is moveable to an extended position on rotation of a handle 38 connected via shaft 130 with a crank 134 pivotally connected to the two rear links 90, 92 of the footrest linkage on one side of the chair, simultaneous movement of the foot rest linkage on the other side being effected by a rod 150 rigidly connected between the two links 154 of the locking mechanisms, the connection between the footrest linkage and the link 154 of the locking mechanism preventing the footrest being retracted when the backrest is reclined. Each seat mounting plate 22 is pivotally connected to the rocker-cam frame by parallel links 50, 52 and is moveable on rearward pivoting of the backrest by pivotally connecting link 52 to the backrest via links 78 and 70 and pivotally connecting the backrest to the mounting plate 22 by links 64 and 70. When the footrest is retracted locking links 170 extend rearwardly from their pivots 172 with the rocker-cam frame arm 174 and prevent the backrest from being reclined. A rocker-lock mechanism 40 is actuated when the footrest is extended to prevent rocking of the chair when it is reclined.
Patent GB-1120571-A (GB)
Title: Automatic firearm
IPC: F41A3/40
Filed: 1966-03-04
Abstract: 1,120,571. Breech mechanism. OERLIKONBUHRLE HOLDING A.G. 4 March, 1966 [10 March, 1965], No. 9604/66. Heading F3C. An automatic firearm comprises a breech head, a breech housing wherein the breech head is relatively movable in an axial direction, at least one locking member arranged in the breech head by means of which the breech head is lockable in the breech housing; at least one recess provided in the breech housing into which the locking member projects when the breech head is locked. The firearm further comprises a control member for the looking member relatively movable from an ineffective position through an intermediate effective position to a breech head abutment position on the forward movement thereof (Figs. 1, 2, not shown). At least one brake for delaying the movement of the control member in the backward direction more than in the forward direction is also provided, the or each brake comprising a movable element 10 and a catch 51 with which the element engages in the abutment position of the control member and from which the element 10 disengages with movement of the control member from the abutment position up to the intermediate position. The movable element 10 and the catch 51 have friction surfaces 104, 105 and 53 respectively by means of which the control member is braked as the movable element 10 disengages from the catch. In the construction shown the catch 51 is in a sleeve 5 which is arranged to move with the control member, the movable, spring-loaded element 10 being received in the breech housing. The frictional forces of the locking elements, one brake being mounted at each side of the breech housing, are overcome by the thrust of a pair of unlocking rods 14. The brake may also comprise a spring-loaded member which frictionally co-operates with a recess within the breech head (Figs. 8, 9, not shown). The braking action is terminated before the breech head is unlocked.
Patent GB-1488751-A (GB)
Title: Battery of electrochemical cells
IPC: H01M50/367
Filed: 1975-03-07
Abstract: 1488751 Gas vents for storage batteries SAFT-SOC DES ACCUMULATEURS FIXES ET DE TRACTION 7 March 1975 [21 March 1974] 9708/75 Heading H1B [Also in Division F2] A valve for venting gases in a storage battery comprises an elastically deformable member 15 which normally seals openings 21-24 communicating with cell compartments 1-4 but which is deformed by excessive gas pressure in the cells to vent the gas to the atmosphere via orifices 16, 17. A battery of four cells are grouped in a container 10 provided with a cover 11 in which lid 14 is positioned to exert pressure on the member 15. In a modification the member 15 has a skirt made of elastomer which normally seals openings in the form of horizontal ports leading to the cell compartments.
Patent GB-574812-A (GB)
Title: Improvements in and relating to magnetic induction accelerators
IPC: H05H11/00
Filed: 1943-06-16
Abstract: 574,812. Discharge apparatus. BRITISH THOMSON-HOUSTON CO., Ltd. June 16, 1943, No. 9709. Convention date, June 17, 1942. [Class 39 (i)] [Also in Group XXXV] In a magnetic induction accelerator or " betatron " of the kind in which a cyclically varying magnetic field confines electrons or other charged particles in a circular orbit while continuously accelerating them along the orbit, has an easily saturable magnetic path 50 shunting the polepieces 14, 15, whereby impulsive voltages may be obtained to actuate the electron-injecting means at the proper point in the cycle. The path is a thin strip of permalloy surrounded by a coil 51, Fig. 8, in which impulses are generated every time the strip passes between saturated conditions with the flux in opposite directions ; this occurs only in the region of zero magnetic field, the exact point being controllable by a biassing coil 52 supplied with direct current from battery 76. The impulses which are in the correct sense actuate the gas-filled tube 72 and connect charged condenser 66 across the resistance 60 so as to apply a positive voltage to control electrodes 41, 42 and release electrons from cathode 40. The annular vessel 10 is supported between the polepieces and surrounds a central flux path comprising laminated discs 25 separated by spacers 28. The polepieces have a small reverse taper 22 for shaping the marginal field. Orbit expanding coils 46, 46<1> are provided. The cathode is supported on the re-entrant pinch 43, Fig. 5.
Patent GB-832133-A (GB)
Title: Improvements in or relating to the production of boron hydrides
IPC: C01B35/18
Filed: 1958-03-26
Abstract: Diborane and higher hydrides of boron are prepared by reacting boric oxide with hydrogen at above 800 DEG  C. in the presence of an electropositive metal (i.e. a metal above H2 in the electromotive series) of atomic number 11-26 and cooling the gaseous reaction products to below 300 DEG  C. in less than 1 min., preferably less than 30 secs. metal borates which decompose to boric oxide under the reaction conditions, e.g. metaborates of Li, Na, K, Ca, Mg, or Ba, or tetraborates of Na, or K, may be used alternatively.  The electropositive metal may be Na, Mg, Al, Ca, K, or Fe, preferably in excess, e.g. up to 5 mols. Al per mol. boron compound.  The reaction temperature may be 1000-3000 DEG  C., and H2 may be passed continually through the vessel so that at least 3 mols. of H2 are used per mol. of boron compound, and at such a rate that the gaseous products are subjected to above 800 DEG  C. for less than 1 min.  The reaction products may be passed through liquid N2-cooled traps and the hydrides isolated by fractional distillation while excess H2 may be recycled to the vessel.  Atmospheric, reduced, or elevated pressures may be used and where temperatures above the boiling point of the electropositive metal are used the metal may be introduced as vapour.  Up to 20 mols. per cent of an easily reducible oxide, i.e. ferric, nickel, or mercuric oxides, may be added to the reaction mixture.  Heating may be by electricity by a tube furnace or by a tungsten filament in the mixture.
Patent GB-945033-A (GB)
Title: Reading apparatus for the blind
Inventor: BERGGREEN ALF MORRIS
IPC: G09B21/00
Filed: 1960-03-18
Abstract: 945,033. Teaching the blind. ORYX TRADING A. S. March 18,1960, No. 9797/60. Heading G5G. Reading apparatus for the blind conforming to the braille system comprises a casing 10, a reading platform 16 through which one or more rows of pins arranged according to the position of the Braille code may be projected according to the data recorded as conductive ink areas on a sheet 15 placed on a flat platten 13 movable stepwise in a line spacing direction under a contact carrier 98. A motor 64 drives a shaft 66 engaged by the carrier 98 to traverse it so that a contactor 106 may scan contacts 114,116 of a rail 112 which is held in contact with the row of data on the sheet 15. Signals from the contactor 106 are passed through an amplifier 120 to a contact pin 121 which runs over a rail 124 in synchronism with the contacter 106 traversing the rail 112. Segments of the rail 124 are connected to solenoids 125 which actuate reading pins 18, according to the data sensed, which are then held elevated. Thus the line of data sensed is set up in Braille code by the row of pins 18 the projection of which can be adjusted by raising or lowering the platform 16 by cams 78 operated by a knob 20. Depression of a knob 21 through a rod 40 closes contacts 60 to start the motor 64, operates an arm 44 to effect escapement of a pawl and rack 48, 50 to line space the platen 13, and by an arm 133, moves the rod 130 to cause fingers 129 to restore pins 18 operated in the previously scanned line. The carrier 98 is engaged alternatively with right and left threads on the shaft 66 as it reaches the end thereof to cause it to traverse backwards and forwards and at the left-hand end a finger 104 opens contacts 105 to stop the motor. If desired two or more sets of pins 18 operated alternately may be provided in which case stopping means are provided at each end of the shaft 66 and depression of the knob 21 is arranged to be effected on each set alternately. Correct positioning of the sheet 15 can be effected by a knob 140. When sensed, with the sheet 15 in the correct position, contacts 136 operate a buzzer 138 while a finger 92 indicates the line being sensed.
Patent GB-720911-A (GB)
Title: Bottom bracket of bicycle frame
Inventor: SHAKESBY LEONARD
IPC: B62K19/34
Filed: 1953-04-11
Abstract: 720,911. Cycle crank-axle brackets. CANADA CYCLE & MOTOR CO., Ltd. April 11, 1953, No. 9900/53. Class 136(3). In a bicycle provided with a one-piece crank 15 the side wall of the crank case 10 is formed with an external blister 20, the walls of the crank case being too confining to permit the elbow 17 of the one-piece crank 15 to pass therethrough save at the position where the blister is formed. The blister 20 is formed between sockets 13, 14 which are connected to the rear fork members.
Patent GB-214988-A (GB)
IPC: G05F1/24
Filed: 1924-04-22
Abstract: 214,988. Siemens - Schuckertwerke Ges. April 23, 1923, [Convention date]. Systems depending on the use of static transformers.-In order to raise or lower the potential in a three-phase supply circuit R,.S, T, an auxiliary transformer having its secondary connected in series in the supply circuit, has its primary terminals u - - connected to brushes of a switching drum shown developed in the lower part of the Figure, and through the switching drum to a potential transformer 3. The contacts on the drum are arranged so that the .primary windings can be short-circuited, connected in star positively or negatively, and connected in delta positively or negatively, giving five different. stages of potential. The brushes may as shown be duplicated, with protective resistances in each pair.