baber/WOPTO huggingface dataset:
Patent GB-236702-A (GB)
Title: A substitute for batteries in radio receiving sets
IPC: H02M1/40
Filed: 1924-05-21
Abstract: 236,702. Frost, P. B. May 21, 1924. Thermionic amplifiers and detectors.-In a wireless receiving set one or more thermionic valves are fed from continuous current supply mains and the voltage is reduced and the ripples eliminated by series connected high resistance chokes with parallelled condensers and the filament rheostat or rheostats are arranged in parallel with the valve filament or filaments. The Figure shows valves VI - - V3 with series connected filaments arranged in series with chokes C1, C2 and carbon lamps L1, L2 and provided with shunt condensers K1, K2. The anode supply is taken from tappings S through a choke C3 and a parallel condenser K5 is provided for oscillatory current. Different anode, tappings may be used for different valves, and to insulate the apparatus a transformer T and condensers K3, K4 are preferably employed. A small condenser K11 may be provided connected to the mains when the house wiring is utilized as an aerial. The grid bias of the valves is adjusted by means of resistance R4. The chokes C1, C2 have iron cores which may be provided with adjustable air gaps to prevent saturation, or may be differentially wound, one of each pair of coils being shunted by a condenser. The series choke or chokes C3 are preferably of high inductance and wound on closed cores.
Patent GB-1078288-A (GB)
Title: Pyridyl amides
IPC: C07D213/81
Filed: 1966-03-22
Abstract: The invention comprises compounds of the general formula <FORM:1078288/C2/1> wherein A is -NR2 or a non-aromatic branched-chain hydrocarbon radical, each R is H or a non-aromatic hydrocarbon radical, Z is O or S, X is halogen or C1- 8 alkoxy, Y is OH, halogen, NO2, C1- 4 alkyl, C2- 4 alkenyl, C1- 8 alkoxy, -NH2, mono- or di-alkylamino, -CONH2, -SH, alkylmercapto, -CN, -SCN or -NCS, n is 1, 2 or 3, and m is 0, 1 or 2, in which each Y, when m is other than zero, and each X is attached to a carbon atom in the pyridine ring which is non-adjacent the position at which the -NR-CZ-A group is attached to the pyridine ring.  The compounds are prepared by reacting a pyridine substituted with a primary or secondary amino group, containing no substituents in the ring positions adjacent such group, and with a halogen or an alkoxy group non-adjacent to the amino group with (a) an isocyanate, an isothiocyanate or an anhydride of a non-aromatic branched-chain carboxylic acid, or (b) phosgene or thiophosgene in the presence of an HCl-scavenger followed by reacting the resulting product with an amine.ALSO:Fungicidal compositions comprise a compound of the general formula <FORM:1078288/A5-A6/1> wherein A is -NR2 or a non-aromatic branched-chain hydrocarbon radical, each R is H or a non-aromatic hydrocarbon radical, Z is O or S, X is halogen or C1-8 alkoxy, Y is OH, halogen, NO2, C1-4 alkyl, C2-4 alkenyl, C1-8 alkoxy, -NH2, mono- or di-alkylamino, -CONH2, -SH, alkylmercapto, -CN, -SCN or -NCS, n is 1, 2 or 3, and m is 0, 1 or 2, in which each Y, when m is other than zero, and each X is attached to a carbon atom in the pyridine ring which is non-adjacent the position at which the -NR-CZ -A group is attached to the pyridine ring.  The compositions may be applied as dusts, liquid sprays or gas-propelled sprays and may contain carriers, emulsifying agents, melting agents, gases compressed to the liquid state, stabilisers or other fungicidal components.
Patent GB-162920-A (GB)
Title: Improved method of driving electric centrifugal machines having mechanical unloaders
IPC: B04B9/08
Filed: 1920-05-06
Abstract: 162,920. Hunt, W., (Hepworth Co., S. S., and Mackintosh, E. M.). May 6, 1920. Driving.-The shaft m of a centrifugal machine is driven by an electric motor a, supplied with direct or alternating current, through a centrifugal clutch. The spider h on the motor shaft g carries swinging or sliding blocks i which are thrown outwards to engage the clutch ring j clamped to the end of the shaft m. An unloader plough w is mounted on a bracket on the basket casing u and is raised or lowered by a rack and pinion. A band brake q is also provided. When the machine is used for drying sugar the motor runs at full speed; when unloading, the motor runs at half speed, and the plough engages the material in the basket, causes the clutch to slip and so reduces the basket speed to a suitable value.
Patent GB-289787-A (GB)
Title: Device and process for producing solid and hollow reinforced concrete constructions
IPC: E04H12/12
Filed: 1928-04-30
Abstract: 289,787. Gl÷ser, O. April 30, 1928. [A Specification was laid open to inspection under Sect. 91 of the Acts, April 30, 1928]. Mounting pipes and tubes.- Reinforced concrete posts &c. are formed by placing longitudinal reinforcing-bars under tension, enclosing in concrete by means of a mould and subjecting the concrete to pressure by a press plate guided on the bars. As shown, reinforcing bars 2 are screwed at one end into a head plate 1 anchored to a wall &c. through eyelets 10. 12 connected by a tensioning-device 11; and at the other end the bars are restrained by nuts 5 engaging a plate 6 anchored by hooks 7 and eyelets 9 to a wall 8. A press plate 13 slides on the bars 2 and is adjustable by nuts 4. The plates 6, 13 are apertured for the passage of a segmental core 14. Afterassembling and tensioning the bars 2, a reinforcing-wire 17 is wound spirally around the bars which are then surrounded by a mould 18 formed of plates secured by bolts 19. Cores 15 to form climbing-holes are carried by flat bars 22 and are inserted through holes in the mould. Concrete is run into the mould and compressed by tightening the nuts 4. After setting, the nuts are tightened as much as possible, the tensioning- device 11 is relieved, and the mould and core are removed. Fig. 3 shows a finished post.
Patent GB-482230-A (GB)
Title: A process for the manufacture of printing forms for intaglio printing with a doctor
IPC: G03F5/20
Filed: 1937-05-04
Abstract: 482,230. Photo - mechanical printing- surfaces. BEKK & KAULEN CHEMISCHE FABRIK GES., DR., and GORIG, J. May 4, 1937, No. 12758. Convention date, May 6, 1936. Addition to 458,968. [Class 98 (ii)] The process described in the parent Specification is modified by printing the picture onto the light-sensitive layer by projection and the screen by contact printing. The printings may be carried out in either order. Where the screen is printed first, it is possible to retain a stock of sensitized metal plates onto which the screen has already been printed.
Patent GB-623682-A (GB)
Title: Improvements in or relating to spectacle frames
IPC: G02C5/22
Filed: 1947-05-12
Abstract: 623,682. Spectacle frames. CAMPBELL, D. W. S. May 12, 1947, No. 12758. [Class 97 (i)] To provide a universal joint instead of the usual temple hinge, each side arm 7 carries a ball 5 engaging a socket 1 connected to the frame 3 to permit limited movement, a spring 4 pressing the ball against the end of the socket to retain the arm in its adjusted position. The ball may be screwed to the reinforcing wire 6 of the side arm.
Patent GB-276075-A (GB)
Title: Improvements in mechanical advertising
IPC: G09F19/08
Filed: 1926-05-19
Abstract: 276,075. Adams, F. E. May 19, 1926. Forms and models with characteristic movements.-An advertising device comprises a flat or modelled representation of the face or head of an animate being formed of, or provided with, rubber &c. 1 to which are attached cords 8 which pass through holes 9 in a frame or member 2 behind the elastic material 1, and are connected adjustably to mechanically driven reciprocating parts 7. The effect of the pull of the cords 8 is to distort parts of the face. The pull of each cord 8 may be extended over a. larger area of the surface 1 by attaching by flexible tabs 13, and the surface may be slit to produce further effects.
Patent GB-740106-A (GB)
Title: Improvements in or relating to rotor blades for rotary wing aircraft
Inventor: JR CHARLES MANUEL ECHEVERRIA
IPC: B64C27/473
Filed: 1954-05-03
Abstract: 740,106. Rotor blades. UNITED AIRCRAFT CORPORATION. May 3, 1954, No. 12857/54. Class 4. A metal rotor blade for rotary wing aircraft comprises an extruded hollow spar member 10 having upper and lower walls conforming to the aerofoil contour of the blade and front, rear and intermediate walls 30, 32 and 34. The spar is grooved spanwise at 70 and 72 to accommodate lipped edges of leading and trailing edge plates 74 and 76 which complete the aerofoil contour of the blade and are segmented spanwise in overlapping relationship, the trailing edge-plates being adhesively secured to spaced trailing edge formers 14 which are secured to a spanwise channel section member 80 bonded to the rear face of the wall 32. A similar channel 78 is bonded to the front face of the wall 30 and to the leading edge plates 74. The spar member 10 is secured at its root end to the rotor hub and both the spar and the fairing members are so proportioned that the chordwise centre of gravity of the spar is located substantially at the aerodynamic centre of the blade section and preferably at the chordwise neutral axis and the chordwise centre of gravity of the entire blade section. In a further embodiment, the channel member 78 is replaced by a D-section nose tube, through which hot air for de-icing purposes may be passed, and continuous plates, subdivided spanwise, are wrapped round the entire blade section with the free edges bonded together at the trailing edge and the plates bonded to the spar and other members. The nose-section may be filled with a moulded section containing deicing heating wires and in a still further embodiment the fairing plates may be divided along a spanwise joint at the channel member 80 and secured thereto by glue and rivets. The nosesection within the wrap-around plating may consist of a wooden section supporting a metal mass balancing rod.
Patent GB-1469936-A (GB)
Title: Method for making aromatic bis-ether anhydride-s
IPC: C07D307/89
Filed: 1974-03-22
Abstract: 1469936 Aromatic bis(ether anhydrides) GENERAL ELECTRIC CO 22 March 1974 [30 March 1973] 12865/74 Heading C2C Aromatic bis(ether anhydrides) are prepared by reacting an alkali metal diphenoxide of formula and an aromatic anhydride of formula where X and Y are each nitro or a halogen atom, M is an alkali metal ion, and R is a divalent aromatic radical of 6-30 carbon atoms, preferably either (a) one of the divalent aromatic radicals or (b) a radical of the formula where Q is a divalent radical of the formula -O- or -S- where m is 0 or 1, and y is a whole number from 1 to 5. The aromatic bis- (ether anhydrides) of formula  where R<SP>1</SP> is and Q<SP>1</SP> is -O-, -S-, -C(CH 3 ) 2 - or -SO 2 - are novel. The compounds of the invention are used as intermediates in the preparation ofpolyimides and polyesters, and as curing agents for epoxy resins.
Patent GB-747867-A (GB)
Title: Improvements relating to automatic voltage regulating systems for alternators
Inventor: PEARSON EDWARD
IPC: H02P9/14
Filed: 1953-05-08
Abstract: 747,867. Inductor alternators. ENGLISH ELECTRIC CO., Ltd. May 7, 1954 [May 8, 1953], No. 12886/53. Class 35. An inductor alternator has a compounding field winding FC fed through a rectifier MR with a current proportional to the voltage across a condenser C which is connected in series with, and has an equal reactance to, the output winding AC. The basic excitation of the machine is by a field winding F fed from a commutated winding lying in the rotor slots.
Patent GB-766044-A (GB)
Title: Improvements in or relating to luminescent materials
Inventor: RUNCIMAN WILLIAM ALAN
IPC: C09K11/77
Filed: 1953-05-08
Abstract: 766,044. Luminescent materials. GENERAL ELECTRIC CO., Ltd. April 23, 1954 [May 8, 1953], No. 12932/53. Class 39(1). Luminescent material comprises one or more alkaline earth metal oxide activated by uranium and one or more of the rare earth elements in the trivalent state and is responsive to ultra-violet radiation of 365‹O. The rare earth element can be gadolinium, lanthanum, europium or samarium. The proportion of uranium is 10-<2> to 25 mol. per cent. of the material, preferably 1 mol. per cent., and the proportion of rare earth element is 10-<6> to 5 mol. per cent. of the material, preferably 0À1 or 1 mol. per cent. The - material can be prepared by heating a mixture of at least one alkaline earth metal oxide or alkaline earth metal compound capable of decomposing when heated to form the oxide, and uranium trioxide or a compound containing the uranyl group, and one or more oxides, or compounds decomposable by heat to form oxides, of rare earth elements in the torvalent state, at a temperature in the range of 1100‹C. to 1350‹C. in air, preferably above 1200‹C. An aqueous solution of a uranyl compound can be mixed with the compounds of the alkaline earth metal or metals and the rare earth metal or metals to form a paste which can be dried before the heating step. When 1 mol. per cent. or more of a uranium compound is used an alkaline earth metal uranate of the general formula R3UO6 may also be formed as referred to in Specification 766,043.
Patent GB-836231-A (GB)
Title: Machine for applying liquid gasket compound to workpieces
IPC: B29C48/13
Filed: 1957-04-23
Abstract: <PICT:0836231/III/1> A machine for applying liquid gasket compound to moving workpieces 10 comprises a rotatable nozzle 46, means for rotating the nozzle about its axis and means for causing the nozzle to move in a closed circular path in a plane normal to the plane of travel of the workpieces, part of the path being parallel to and above the path of travel of the workpieces 10, the path ensuring the return of the nozzle 46 to a position above a following workpiece and means operating in timed relation to the speed of the nozzle and of a workpiece, e.g. a cam-operated time switch of an electro-pneumatic valve actuator for ejecting compound from the nozzle 46 only during the period when the paths of the nozzle 46 and workpieces 10 are colinear.  A rotating cam 16 acts against a spring 18 periodically to rock a member 13 to withdraw a pin 12 from, and insert a pin 14 in, the bottom of a slide 11 delivering workpieces 10, thereby to deliver singly a workpiece to a chuck 15 on an endless roller chain conveyer 24.  The chucks 15 may be magnetic, and may have a spring-pressed bullet catch 29 if the workpieces 10 are suitably apertured.  The nozzle 46, which is continuously rotated about a vertical axis through pinions 68, 69 and a gear 66, is carried in a circular path in a vertical plane above the conveyer 24 by connecting a bracket 45 carrying the nozzle 46, Fig. 4, with eccentrics 42 on shafts 34, 35 which are driven at the same speed and in the same direction from a chain 37.  The shaft 35 carries a camoperated time switch (not shown) which energizes the electro-pneumatic valve actuator for a needle valve in the nozzle 46, thus ensuring delivery of compound under pressure from an inert 53 in a chamber 54 to which the nozzle 46 is attached whilst the nozzle 46 is parallel to and above the appropriate workpiece 10, e.g. whilst the nozzle moves from 18 degrees at one side of dead centre to 18 degrees at the other side. The circumferential speed of the nozzle 46 and the speed of the conveyer 24 are equal, e.g. 3.6 inches per second, and the length of the path of the nozzle tip either equals the <PICT:0836231/III/2> distance between adjacent chucks 15, in which case each workpiece is coated, or is an integral multiple of that distance, e.g. twice, in which case alternate workpieces only are coated, and a second and similar nozzle 46 is provided to coat the remainder. The gasket compound is delivered by a pump or under pneumatic pressure to the nozzle 46.  The nozzle is constructed as described in Specification 836,232 [Group XXIX].
Patent GB-347007-A (GB)
IPC: H01H9/46
Filed: 1930-04-28
Abstract: 347,007. Automatic circuit-breakers. ASSOCIATED ELECTRICAL INDUSTRIES, Ltd., Bush House, Aldwych, London.-(Assignees of Slepian, J. ; 1115, Lancaster Street, Pittsburg, U.S.A.) April 28, 1930, No. 13019. Convention date, April 27, 1929. [Class 38 (v).] Electromagnetic switches; impact switches; magnetic blow-outs.-Relates to switches wherein the initial separation of the contacts takes place at a high rate of acceleration under the action of mechanism that is first accelerated and then applies an impulse to separate the contacts. The latter, if of copper, are preferably arranged to be separated <1>/32 of an inch in 0À001 seconds or less, so that a magnetic blow-out can move the arc before the contacts reach a temperature high enough to cause extensive vaporization. In Fig. 1, a spring 14 acting on an abutment 13 urges a movable contact 3 to bridge arc members 4, 5. Energization of a solenoid 15 moves a roller 16 so that a lever 6, pivoted at 7, is urged by a spring 8 to apply an impulse to the abutment 13 and move the contact 3 from the member 4 at high speed. The effect may be modified by arranging for the member 3 to slide on the member 4 before leaving it, thus allowing a smaller acceleration of the former. In a modification (Fig. 3, not shown), the member 5 is also arranged to move away from the member 4 a short distance against the action of a spring, and is connected to the right-hand abutment of spring 14 so as to be moved when the latter is sufficiently compressed by the impact. Fig. 7 shows a commercial form in which an electromagnet 24 holds one end of an armature 22, which is pivoted at 23 and connected by a tension spring 20 with a fixed abutment and by a second spring 28 with a movable contact-arm 26 pivoted at 27. On de-energization of the magnet 24, both springs act on the armature until a hammer 25 thereon strikes the arm 26 to drive it from the fixed contact, the spring 20 alone completing the opening movement. The strength of the blow-out field may be one-half a gauss per ampere of current.
Patent GB-802832-A (GB)
Title: Vitreous enamel coatings upon aluminium or like surfaces
IPC: C23D3/00
Filed: 1956-04-27
Abstract: In the vitreous enamelling of aluminium or aluminium rich alloy surfaces, before the frit is applied the surface is treated with a bond-promoting material selected from those metals which will diffuse into the aluminium or alloy surface and which, on firing the enamel, will fuse into the enamel.  The metals are preferably Fe, Nb, Mo, Sb, Ta, but V, Mn, Co, Ni and W may be used, and also Ti, Ga, As, Kr, Pb, Ir, Tl and Th.
Patent GB-659150-A (GB)
Title: Improvements relating to suction cleaners
IPC: A47L9/32
Filed: 1949-05-17
Abstract: 659,150. Pivoted handles. HOOVER, Ltd. May 17, 1949, No. 13081. Convention date, July 8, 1948. [Class 61(i)] [Also in Group XXVIII] A suction cleaner handle 17 is maintained in an upright, normal working or lowered position according to whether a spring- loaded detent roller 38 carried by a lever 31 pivoted to the handle bail 18 is engaged in a recess 23, 24, or 25 formed between projections 26, 27, 28, 29 of a cam sector 20 riveted to the cleaner casing, and the roller 38 is held out of contact with the recess 24 to prevent wear by a stop 40, which limits movement of the roller towards the cam sector 20.
Patent GB-131332-A (GB)
IPC: G01L7/00
Abstract: 131,332. Starling, S. G., Hughes, A. J., and Hughes & Son, H. May 2, 1918. Barometers.-In an aneroid barometer or altimeter, the movable face of the vacuum box A carries a plane surfacs D upon which bears a point E on a pivoted lever F. On the end of the lever F is a pin H in sliding contact with a curved cam surface J on a pivoted quadrant K, to which is attached a light cord L passing round the pointer-spindle M and held taut by a spring Q. Other features include a flat spring C passing round the vacuum box and connected to the movable face, and a dial which may be rotated by means of a pinion U and milled head V.
Patent GB-280852-A (GB)
Title: An electrically driven wind screen cleaner
IPC: H02K7/06
Filed: 1927-05-16
Abstract: 280,852. Malkovsky, A. Nov. 22, 1926, [Convention date.]. Windows and the like, cleaning.-A casing 1, enclosing an electric motor and the gearing connecting it with the shaft 6 of the wiping element 7, is provided with a partition 2 separating the motor from the gearing. The casing is held in place on the windscreen by means of a screw - threaded tubular extension 11 which passes through an opening in the wind-screen and is engaged by a nut 10. The shaft 6 is adapted to be oscillated by means comprising a pinion 8 gearing with a rack formed on a frame 4, which is provided with an upper and a lower set of teeth 4<1> adapted to be engaged alternately by teeth 5<1> on a wheel 5 driven through gearing from the electric motor. The axes of the motor shaft, wiper operating gear, and extension 11 are in the same vertical plane.
Patent GB-291937-A (GB)
Title: Improvements in the attachment of engine cylinders to crankcases
IPC: F01P9/04
Filed: 1927-05-17
Abstract: 291,937. Douglas Motors, Ltd., and Pullin, C. G. May 17, 1927. Cylinders. -In an attachment for engine cylinders to crank casings, sockets 6 on the crank casings 2 engage the cylinders at intermediate positions 12 and at their open ends at 13. Lubricating-oil is circulated in an annular recess 8 between the engaging surfaces to cool the cylinder. The bolts may engage lugs on a collar 9 which abuts the end 10 of the socket, or may engage lugs at the combustion end of the cylinder. A passage connects the crank-casing with the upper part of the recess 8, and drainage holes in the end face of the cylinder or the wall 17 lead the oil back to the casing. Long troughs 18 communicating with the holes may be provided in the cylinder to collect the oil and act as cooling-fins. Lubricating holes 20 communicate with the interior of the cylinder.
Patent GB-132176-A (GB)
IPC: F41A23/40
Abstract: 132,176. Schneider et Cie. May i7, 1917, [Convention date]. Propelling.-Consists in a carriage for guns of large calibre firing from the railway track, comprising a gun mounting supported on two or more trucks, one of which is constructed as a tractor for running the gun into the firing position. In the construction shown in Figs. 3 and 4, the front truck is driven by wheels P, preferably grooved, the axles of which are carried by pistons P<1>, working in cylinders Q which are supplied with pressure liquid from a pump R. The wheels P are operated by hand gear or by a motor. In a modification, Figs. 5 and 6, the truck is driven by a pinion T engaging a rack S between the rails. The pinion is driven by hand gear or by a motor, and is raised by suitable mechanism when the gun is to be fired or transported. Specification 131,059, [Class 92 (i), Ordnance &c. mountings] is referred to.
Patent GB-342612-A (GB)
Title: Improvements in or relating to supports for boiling plates for electrical ovens
IPC: F24C15/10
Filed: 1930-04-29
Abstract: 342,612. Electric cooking stoves. MAXIM SOC. ANON. FABRIQUE D'APPAREILS THERMO-ELECTRIQUES and HOFER, H., Aarau, Switzerland. April 29, 1930, No. 13218. Convention date, April 30, 1929. [Class 39 (iii).] Boiling plates for electric stoves are mounted on a sheet-metal casing of inverted U-section enclosing insulating blocks containing terminal sockets. The boiling plates K are furnished with plugs S fitting into sockets in blocks 3 and are also supported by studs 6a, 6b secured by straps to the casing 1. Guard rings 2 surrounding the blocks 3 protect the plugs S during insertion. Space for the conductors L is left in the casing 1 below the blocks 3.