baber/WOPTO huggingface dataset:
Patent GB-684025-A (GB)
Title: Improvements in and relating to luminescent calcium halophosphate phosphors
IPC: C09K11/76
Filed: 1949-05-07
Abstract: 684,025. Luminescent materials. THORN ELECTRICAL INDUSTRIES, Ltd. May 7, 1949 [May 7, 1948; April 22, 1949], Nos. 12251/49 and 12252/49. Drawings to Specification. Class 39(i) Secondary calcium phosphate CaHPO 4  is the only source of phosphate in the ingredients for the preparation of an antimony activated halophosphate phosphor. Calcium oxide or a calcium compound yielding the oxide or similar strontium compounds may be added. The mixture to be fired may include manganous oxide or a manganese compound e.g. the carbonate, calcium fluoride or chloride and an antimony oxide or compound, the ratio of calcium and manganese atoms to phosphorus atoms being somewhat less than 5.0/3.0. The preparations of pure secondary calcium phosphate, calcium carbonate and manganous carbonate are described. The preferred atomic proportions are Ca+Mn-4.9, P-3.0, For Cl or both -1.04, Sb 0.05-0.30, Mn 0.00-0.50. The fluorescence is blue when manganese is absent but changes through white to red as the manganese content is increased.
Patent GB-852973-A (GB)
Title: Starting engine with hydraulic drive and means to preheat main engine
Inventor: ZUHN ARTHUR ATTWOOD
IPC: F02N19/10
Filed: 1959-04-13
Abstract: 852,973. Engine turning gear; warming cylinders. CATERPILLAR TRACTOR CO. April 13, 1959, No. 12405/59. Classes 7(2) and 7(5). The invention comprises in combination with a main internal-combustion engine 10 a starting engine 12 therefor and an hydraulic drive means 18 between the engines, pump means 23 for withdrawing lubricating oil from the main engine to supply the hydraulic drive means and a return line from the hydraulic drive means to the main engine whereby heat in the drive means will be dissipated and acquired by the main engine during starting thereof. There is a non-return valve in the return line to close the line when less than a predetermined torque is required to motor the main engine. The starting engine drives the pumping means 23.
Patent GB-831784-A (GB)
Title: Road vehicle shock-absorbing bumper
IPC: B60R19/32
Filed: 1956-04-24
Abstract: 831,784. Bumpers for road vehicles. McCARTHY, J. April 24, 1956, No. 12437/56. Class 103(2) A road vehicle bumper which will absorb the shock of a collision is mounted at each of its ends on a rod B carrying a piston sliding in a cylinder D secured to the vehicle chassis. Inward movement of the piston is resisted by a spring C and by the compression of air within the cylinder, the air being vented through a small hole F near the closed end of the cylinder.
Patent GB-1342293-A (GB)
Title: Pesticidal phosphorus-containing acylated 3-amino-2-oxazolidones
IPC: C07F9/6539
Filed: 1971-04-30
Abstract: 1342293 Pesticidal phosphorus-containing oxazolidone derivatives ESSO RESEARCH & ENG CO 30 April 1971 [1 May 1970] 12483/71 Headings C2P and C2C Novel compounds of Formula I where R 1  and R 2  are alkyl, haloalkyl, nitroalkyl, alkoxyalkyl, alkylthioalkyl, alkylthio or alkoxy each containing up to 6 carbon atoms, phenylalkyl or phenoxyalkyl each containing up to 6 carbon atoms in the alkyl group, or phenyl or phenoxy each being optionally substituted by 1 or more halogen atoms and/or nitro and/or C 1-6  alkyl groups, R 3  is hydrogen, an alkyl, alkoxyalkyl, alkylthioalkyl, alkylthio, alkylsulphoxyl, alkylsulphonyl, alkoxy, carboxamido or carbalkoxy group each containing up to 6 carbon atoms, a mono- or di-alkylamino or mono- or di-alkylaminoalkyl group each containing up to 6 carbon atoms per alkyl group, cyano or halogen, and X is oxygen or sulphur may be prepared by reacting a compound of Formula II with a compound of Formula III where M is K, Na or NH 4 . In an example the intermediate compound N- (2 - chloroacetyl) - 3 - amino - 2 - oxazolidone is prepared by reacting chloroacetic anhydride with 3-amino-2-oxazolidone in benzene. The compounds of Formula I have insecticidal properties and may be used as the active ingredients in conventional pesticidal compositions.
Patent GB-578553-A (GB)
Title: Improvements in variable speed transmission gear
IPC: F16D67/00
Filed: 1943-08-03
Abstract: 578,553. Variable-speed gearing. WATSON, S. C., and PARCELLE, A. J. Aug. 3, 1943, No. 12500. [Class 80 (ii)] Variable-speed gearing involving a fluid coupling and epicyclic gearing comprises a driving shaft 1 driving a fluid coupling impeller 4 and a sun gear 11. A planet cage 12 fixed to a driven shaft 16 has intermeshing planet gears 19, 20, the gears 19 meshing with the sun 11 and with an annulus 35 and the gears 20 meshing with an annulus 24. The annulus 35 is fixed to a drum 43 co-operating with brake bands 44. The annulus 24 is fixed by a casing 25 to the fluid coupling runner 28 and to a brake drum 38 co-operating with a brake band 44. With both brakes off the shaft 16 is driven at variable speed according to the load thereon with variable slip in the fluid coupling. For all ahead speeds the runner will rotate forwardly. When the brake 43, 44, is applied the shaft 16 through the gear train 11, 19, 35 is driven forwardly at a fixed reduced speed. If the brake 43, 44, is released and brake 38, 44, applied the driven shaft 16 will be driven in reverse direction through the gear train 11, 19, 20, 24.
Patent GB-1156910-A (GB)
Title: A Method of Pre-treating a Nickel-containing Cracking Catalyst used for Catalytically Refining Hydrocarbons containing Organic Sulphur Compounds
IPC: B01J23/755
Filed: 1968-03-14
Abstract: 1,156,910. Pretreating supported Ni catalysts. HEINRICH KOPPERS G.m.b.H. 14 March, 1968 [18 March, 1967], No. 12509/68. Heading B1E. Supported nickel catalysts before use are treated with a non-alkaline aqueous solution containing from 2.5-25 wt.% sulphate ions and dried at 100-125‹C. to constant weight. The sulphate ions may be provided by H 2 SO 1 , (NH 4 ) 2 SO 4  or NiSO 4  and the catalyst may be subjected to vacuum to increase sulphate intake. In an example a catalyst containing Ni, MgO, alkali metal oxides, Al 2 O 3  and CaO is treated with aqueous (NH 4 ) 2 SO 4 .
Patent GB-746333-A (GB)
Title: Improvements in or relating to typographical composing machines
IPC: B41B11/18
Filed: 1954-04-30
Abstract: 746,333. Type bar-making machines. MERGENTHALER LINOTYPE CO. April 30, 1954 [May 11, 1953], No. 12550/54. Class 100 (3). Releasing and assembling spacebands.-A typographical line-casting machine comprises a yielding line-supporting member movable under the influence of matrices and spacebands passing into the assembler elevator, and means for effecting a yielding movement of said member prior to the entry of a spaceband to facilitate such entry by relieving the tension on the line being composed. When a spaceband Y is released by depression of a key Al, the releasing process causes to be momentarily closed a switch in a supply circuit from a selenium bridge rectifier to a rotary solenoid 21 having a pivotal armature 21a. On closing the switch the armature 21a swings to the left a pivotal member 20 having friction surfaces 20a which engage the sides of the assembler slide 6 and move it and the line-supporting member 5 to the left a distance equal to the lower thick end of the pendant section of a spaceband. The friction brake 10 prevents any premature return movement of the slide when the switch is opened.
Patent GB-179430-A (GB)
Title: Apparatus for playing a parlour game
IPC: A63F7/06
Filed: 1921-05-03
Abstract: 179,430. Kent, E. May 3, 1921. Table games.-A device for playing a parlour game comprises a base 1<a> having at each end an upright wall 2, the upper edges of which carry sliders 4 for scoring pusposes. At the rear of each wall is a box 5, divided longitudinally into a number of stalls 9, 10, 11, so that a ball resting on a ledge 6, may be made to fall into any one stall and thence on to a sloping platform 17, down which it rolls to the numbered recesses 16. The ball may be prevented from leaving the stall by a slidable block 14 manipulated by an opponent through a lever 19 pivoted on a pin 21. The design of the block 14 may be varied to seal one or more of the stalls at once. To allow blind persons to play, a pair of arms 23 are pivoted to the side walls 17<a>, and carry at their free end a cross-bar 24 on which Braille or other numerals, corresponding to the value of the recesses, are inscribed.
Patent GB-216678-A (GB)
Title: Improvements in ventilators
IPC: F24F7/013
Filed: 1923-05-11
Abstract: 216,678. Ellyson, F. W. May 11, 1923. Screw propellers.-Ventilating fans with two blades have the blades made substantially of the form of aerial propellers but are rotated with the curved thin edges leading. The front edge v of the blade is parabolic and the section of the blade, Fig. 3, has a comparatively flat front portion CD and a steeper portion DE of parabolic form whereby the highest part h of the blade surface lies in the rearmost third of the chord. The blades may be of wood, papier mÔchÚ, aluminium, or the like.
Patent GB-560003-A (GB)
Title: Improvements in or relating to the shot-blasting of coil springs
IPC: C21D7/06
Filed: 1942-09-11
Abstract: 560,003. Sand blast. TOLEDO WOODHEAD SPRINGS, Ltd. (Eaton Manufacturing Co.). Sept. 11, 1942, No. 12817. [Class 60] [Also in Group XXII] In the shot-blasting of springs 10 made from wire of circular, rectangular, or other crosssection, they are fed axially by a driven conveyer belt 18 along an inclined path through the shot-stream 15 and are at the same time rotated by rollers 25, 26. They are then reversed end for end and fed through again. In a modification, the axis of the projector drum 27 is parallel to the axes of the conveyer drums 20, 21. Specification 542,043, [Group XXII], is referred to.
Patent GB-342219-A (GB)
Title: Improvements in or relating to light valves
IPC: H04N5/66
Filed: 1930-04-25
Abstract: 342,219. Electro-optical light valves. MARCONI'S WIRELESS TELEGRAPH CO., Ltd., Marconi House, Strand, London -(Assignees of Douden, W. L. ; 1581, Mansfield Place, Brooklyn, New York, U.S.A.) April 25, 1930, No. 12848. Convention date, May 23, 1929. [Classes 40 (iii) and 40 (v).] In a light valve, changing potentials are applied to opposite faces 2, 3 of an electrostatically responsive crystal 1, and changing interference effects between reflected and transmitted light are set up by the dimensional changes in the crystal. The reflection is obtained at half-silvered parallel plane surfaces 2, 3, which are also used as the electrodes. The potentials may be applied to the half-silvered surfaces through a ring electrode (Fig. 3, not shown). A grid-like screen 12 obscures the interference bands produced by a predetermined potential. According to modifications : the light is passed through the crystal parallel to the plane of the electrodes (Fig. 5, not shown); an interferometer of the Michelson (Fig. 8, not shown) or of the Lummer and Gehrke type is used (Fig. 9, not shown).
Patent GB-892561-A (GB)
Title: Fastener
IPC: F16B5/02
Filed: 1960-04-11
Abstract: 892,561. Fasteners. DEUTSCH FASTENER CORPORATION. April 11, 1960 [April 13, 1959], No. 12867/60. Class 89(1). A fastener for securing a member 3 to a member 4 comprises a stud 20 located in cages 6, 7, connected to the member 4, and a nut 2 connected to the member 3, which when screwed on to the stud increases the shear strength of the fastener. The cage 6 having an internal square cross-section is riveted to the member 4 at 13, 14, and frictionally locates the cage 7 formed in two parts 7a, 7b. The stud 20 has a square flange 21 non-rotatably held between the ends 18, 19 of the cages, and carries a spring-urged square washer 24 having a serrated face 26 which engages a similar face 32 on the nut 2. A leaf spring 47 located in grooves 42, 43 in the nut and held in place by upsets 44, 45, retains the nut in any axial position in the member 3 when the fastener is in the released position, and a circlip 37 limits the axial movement. To secure the fastener, the nut is moved through the member 3 thus forcing the spring 47 into the grooves 42, 43, the circlip 37 is expanded and the nut is screwed on to the stud. The serrated faces 26, 32, engage, and further rotation of the nut overcomes the ratchet effect and moves the washer 24 against the spring 28, the ratchet preventing rotation of the nut in the opposite direction. The threads on the nut and stud may have multiple leads.
Patent GB-514310-A (GB)
Title: Improvements in contactor switches for controlling three phase electric current
IPC: H02P1/32
Filed: 1938-05-02
Abstract: 514,310. Electromagnetic contactor switches for three phase current. HEATON, F. May 2, 1938, No. 13007. [Classes 38 (iii) and 38 (v)] A contactor switch particularly suitable for changing from star to delta connection with a three - phase squirrel cage motor, comprises three switch arms A, B, C which are moved electromagnetically first to break one set of three phase circuits and then, after a pause, to close another set. In the form shown, the middle arm B carries a member b' which normally bridges two fixed contacts a<4>, c<4> connected to the pivoted points of the outer arms A, C so that the windings E, F, G of the motor are star connected. The switch is associated with another, somewhat similar main switch N, O, P adapted to connect the lines L', L<2>, L<3> to the other ends of the motor windings E, F, G. This occurs when a " start " button Q is depressed and the winding S<2> of the main switch N, O, P energized. Operation of the main switch also raises an arm T, Fig. 3, which compresses a spring t and so raises a rod t' under the action of retarding mechanism t<2>, causing the bridging of contacts V in the circuit to the electromagnet S<1> which then operates the switch A, B, C to break the star formation. The arms A, B, C are however prevented from moving their full distance to engage contacts J, K, M (and so effect delta connection) by a projection a<5> engaging a member t', until after a time interval this is moved out of engagement. The Provisional Specification refers to Specification 513,324.
Patent GB-474787-A (GB)
Title: Improvements relating to railway traffic controlling apparatus
IPC: B61L23/16
Filed: 1936-05-08
Abstract: 474,787. Non-contact-making relays. WESTINGHOUSE BRAKE & SIGNAL CO., Ltd. May 8, 1936, No. 13063. Convention date, Nov. 8, 1935. [Class 40 (iv)] [Also in Group XXX] A non-contact-making relay device for use in railway signalling systems with coded track circuit currents comprises a single primary winding inductively related to two magnetic circuits each provided with a secondary winding, the reluctance of one magnetic circuit relative to that of the other being arranged to be varied by the action of a saturation winding so as to vary the voltages induced in the secondary windings. The saturating winding 10 is so arranged on two legs 6b, 6c of a three-legged core 6 that the saturating flux is confined to these two legs 6b, 6c; the primary winding 9 is arranged on the third leg 6a and the flux therefrom passes through the other two legs in parallel and energizes the two halves lla,. I lb of a first secondary winding 11 connected so that the voltages are additive. A second secondary winding 12 is arranged on a core 7 separated by air gaps 8 from the three-legged core 6. When the two legs 6b, 6c are saturated by current in the saturating winding 10 the consequent high reluctance causes the voltage in the first secondary winding 11 to be low and thus the voltage induced in the second secondary winding 12 by flux passing through the air gaps 8 to the core 7 will be relatively high. If no saturating current is flowing the reluctance of the core of the first secondary winding 11 will be low and thus a relatively high voltage is induced in the winding 11 by the flux from the primary winding 9. The two legs 6b, 6c may be constricted at 20 so that saturation is effected with less current. In the arrangement shown interruption-coded alternating current in the track circuit feeds, through a track transformer RT, a rectifier R<1> which therefore supplies code-interrupted direct current to the saturating winding 10 ; the two secondary windings 11, 12 are thus each alternately energized at the code rate and through rectifiers R<2>, R<3> alternately feed the opposite primary halves 13a, 13b of a transformer DT to generate alternating current of a frequency equal to the interruption rate. The relay H<3> responds to all codes but relay J<3> responds only to a code of 180 interruptions per minute as it is fed through a tuning and decoding unit DU 180. The relays H<3>, J<3> determine the aspect to be shown at the signal S<3> and the code to be applied to the rear section.
Patent GB-893875-A (GB)
Title: Process for the volatilization of metals or metallic compounds
Inventor: LANGE ALFRED
IPC: C22B5/16
Filed: 1958-04-24
Abstract: <PICT:0893875/III/1> p  Metal compounds are volatilized from powdered solid material by feeding the material into a chamber containing a whirling mass of hot gas formed by the combustion of a mixture of fuel and oxygen-containing gas, the solid material and the mixture being introduced into the chamber separately and from different directions.  The process is particularly applicable to the treatment of sulphidic ores to separate the volatile from the non-volatile sulphides.  Zinc, lead and tin may be recovered as oxides or sulphides, from oxidic, sulphidic or sulphate raw materials.  As shown, powdered material is introduced at 3 into a shaft 2 having radial or tangential inlets 4 for the introduction of fuel and air. Non-volatile components collect in a hearth below the shaft and volatile components pass out through a flue 1. An inlet 5 serves for the introduction of inert gas, steam, carbon dioxide or secondary air to increase the suspension time of the material.  Additional gases, e.g. carbon monoxide, may be introduced to convert non-volatile compounds, e.g. sulphates, to volatile compounds.
Patent GB-295076-A (GB)
Title: Apparatus for removing dust from bast fibre cards
IPC: D01G15/76
Filed: 1927-05-16
Abstract: 295,076. Naacke, R., and Roeder, A. May 16, 1927. Carding-engines.- A machine for carding bast fibres is completely enclosed by a casing 2, provided at the front end with a frame 5 having apertures 6 through which the carded slivers emerge from the machine. The lap is fed on an apron through a slot 9, so that no air can enter at this point. Dust &c. is withdrawn by a fan through a pipe 10. Where a gill drawing head is associated with the delivery of the sliver a channel 13 connects an enclosed space below the fallers with the casing 2.
Patent GB-702685-A (GB)
Title: Improvements in cathode ray polarographic apparatus
Inventor: DAVIS HERBERT MACDONALD
IPC: G01N27/48
Filed: 1951-06-02
Abstract: 702,685. Polarographic apparatus. NATIONAL RESEARCH DEVELOPMENT CORPORATION. May 28, 1952 [June 2, 1951], No. 13138/51. Class 37 As indicated in the block diagram of Fig. 1 polarographic cathode ray tube display apparatus of the kind disclosed in Specification 631,459 is improved by inclusion of (i) a sweep compensator 3 for maintaining a constant rate of change of potential across the cell 4 and (ii) a condenser current compensator 10 for compensating the effects of cell capacitance. The invention is described with Fig. 1 translated into the detailed circuit shown in Fig. 2. Sweep compensator. In the life of each mercury drop a multivibrator V1/ V2 switches on a bootstrap generator V3-V5 and a resistance network R8-R12 conveys V3-V5 sweep voltage to the control grid of V6 for application to the coinbination of cell and selected series resistor through V8 and V9. The resistance network R8-R12 also applies continuously to the V6 control grid a steady potential at R11 related to the potential of the control grid of V7 tied to the cell anode H2. If during a voltage sweep the potential of the control grid of V7 falls with H2 due to an increase in cell current the current in V6 increases and theV6 anode potential drops to increase the voltage at the anode of V8 and the cathode of V9 and thus increase the potential of H2 and restore the basic voltage relation between the control grids of V6 and V7. If the cell current should fall a similar restoring action takes place. The basic voltage relation between the control grids of V6 and V7 during the quiescent period of V3-V5 may be varied by adjustment of R11 and choice of cathode load R14. Condenser current compensator. In a first method a capacitor C7 tapped from R8 injects a constant current into the cell circuit during the sweep period of V3-V5. According to a second method (not shown) an auxiliary current is caused to flow in the cell throughout the quiescent period of V3-V5 and this current is interrupted during the sweep of V3-V5 by a high speed relay operated by the multivibrator V1/V2. To obtain an almost perfectly linear sweep the bootstrap shown may be replaced by the circuit described in Specification 493,843, [Group XL].
Patent GB-623706-A (GB)
Title: Improvements in or relating to rimless spectacles
IPC: G02C1/02
Filed: 1947-05-16
Abstract: 623,706. Spectacle frames. PASCOE, W. J. May 16, 1947, No. 13250. [Class 97 (i)] In rimless spectacles in which the lenses are supported by a metal framework comprising a bridge and two members connected thereto carrying the temple hinges, each connecting member passes over the top of the associated lens and carries an ornamental cover of plastic material having the appearance of a partial rim. As shown, the metal bridge B and connecting members C support the lenses A by means of forked lugs D, D<SP>1</SP> and carry temple hinges E. A plastic covering G over bridge and members may, if desired, be extended as shown at G<SP>1</SP> to provide nose-engaging portions. The lugs D<SP>1</SP> may be omitted and the plastic covering G. be provided over only a portion of the members C. Instead of lugs, the frame may carry projections which are sprung into slots in the edges of the lenses to support the latter. The plastic cover may be moulded in position or may be in two portions secured together by cement.
Patent GB-390337-A (GB)
Title: Improvements relating to ovens for the heat treatment of fuel
IPC: C10B1/04
Filed: 1932-05-07
Abstract: 390,337. Coke ovens. STETTINER CHAMOTTE-FABRIK AKT.-GES. VORM. DIDIER, 90, Westfalische Strasse, Wilmersdorf, Berlin. May 7, 1932, No. 13267. Convention date, May 7, 1931. [Class 55 (i).] In a vertical coke oven, the chamber is so constructed that it has no continuous vertical cross section, by providing hollow members of roof-shaped cross section which extend between the side walls, the inclined surfaces of these members on which the charge slides, forming the walls of a heating gas supply channel in which the gas heats the charge externally before passing into contact with it. The oven may also be heated externally from the vertical side walls. In Fig. 1, roof-shaped members 27, and shoulders 28 provide a zig-zag channel, hot gases being supplied beneath the members 27, the surfaces of which are heated before the gas enters the charge. Hollow members 17, Fig. 2, or 41, Fig. 4, may be provided, dampers 26, 38 respectively controlling the passage of the heating gas from the.space 23 or 34 into the charge, these gases passing, in the case of Fig. 4, through openings 40 in an extension 35. Channels 20 formed in the walls may be used to supply heating gases. Specification 272,766, [Class 55 (i), Coking, &c.], is referred to. The Specification as open to inspection under Sect. 91 refers to an oven externally heated by gases from a producer 1 in flues 3, Fig. 1 (Cancelled), a chamber 2 being bent to provide sliding surfaces 7. The fuel chambers 29, Fig. 6 (Cancelled), are separated by heating channels 30 through which flue gases are passed. This subject-matter does not appear in the Specification as accepted.
Patent GB-132709-A (GB)
IPC: C23C10/30
Abstract: 132,709. Wade, H., (Ward Nail Co.). Feb. 1, 1919. Coating.-A material for use in dry-galvanizing consists of a, mixture of pulverulent zinc and graphite containing not less than 75 per cent of zinc and not more than 25 per cent of graphite. The zinc may be pure zinc or zinc dust or zinc dross, and the graphite is preferably flake graphite.