baber/WOPTO huggingface dataset:
Patent GB-790333-A (GB)
Title: Improvements in electric pump-motor assemblies
IPC: F04D13/06
Filed: 1955-10-27
Abstract: 790,333. Centrifugal pumps. GENERAL ELECTRIC CO. Oct. 27, 1955 [Oct. 29, 1954], No. 30782/55. Class 110 (1). [Also in Group XXXV] A pump impeller and the rotor of the driving motor are mounted on a stationary vertical pin secured in the closed end of a housing moulded about the stator, the pin being held concentrically to the stator bore. In the submersible pump shown, a multi-armed support 6 into which the rotor supporting pin 4 is pressed is mounted in the inner flange 9 of a spider 8 the outer flange of which grips the stator core 11 and this assembly is placed in a mould which is so formed as to leave a bore for the rotor and a space abut the impeller communicating with a passage 49 to serve as the pump outlet. The impeller comprises blades 40 punched out of a disc 39 and each having tabs 41, 42 which engage holes in members 36, 44. Member 36 is secured to the motor rotor 27. The housing is completed by a metal plate 59 secured to strips 55 embedded in the plastic.
Patent GB-149880-A (GB)
Title: Improvements in mechanically operated diaphragm horns
IPC: G10K9/10
Filed: 1919-12-09
Abstract: 149,880. Bradbury, H. W., and Jarvis, E. H. Dec. 9, 1919. Diaphragm horns.-In a diaphragm horn of the type comprising a toothed quadrant and spring- controlled push rod, the push-rod J is of tubular form split longitudinally and indented circumferentially at J<3> to register with a.groove M<2> in the cylindrical part of the push-head M. The push rod is pivotally mounted on the quadrant G, and has a nose J<1> engaging one end of a helical spring. The quadrant G is pivoted at G<1> to the casing or to a frame H carried by the casing.
Patent GB-520544-A (GB)
Title: Improvements in or relating to optical objectives
IPC: G02B9/12
Filed: 1938-10-25
Abstract: 520,544. Lenses. TAYLOR, TAYLOR, & HOBSON, Ltd., and WARMISHAM A. Oct. 25, 1938, No. 30830. [Class 97 (i)] In an objective comprising a dispersive component D2 between two collective components, the rear components having collective cemented surfaces R6, R7, and comprising a biconvex element D4 between two dispersive elements D3, D5, the refractive index of the element D4 is higher than those of the elements D3, D5, and the arithmetical sum of the radii of curvature R1, R8 of the first and last surfaces is not less than nine-tenths of the equivalent focal length of the objective. The front two components may each consist of a simple element, the sufraces R6, R7 may be strongly collective, the refractive index of the element D 4 may be greater than that of the dispersive component which may itself be greater than the indices of the elements D3, D5, the AbbÚ V number of at least one of the elements D3, D5 may be lower than that of the element D4, and the arithmetical sum of the radii of curvature of the surfaces R1, R4 may be greater than two-thirds of the equivalent focal length of the objective. The Specification contains data for an objective having a relative aperture of F 2À8.
Patent GB-1273880-A (GB)
Title: Process for dyeing polyamides in the melt
IPC: C09B5/28
Filed: 1970-06-25
Abstract: 1,273,880. Melt-dyeing polyamides. CIBAGEIGY A.G. 25 June, 1970 [26 June, 1969], No. 30864/70. Heading C3R. Linear polyamides are dyed in the melt with an α,α<SP>1</SP>-anthrimidecarbazole containing an acylamino group in at most one position para to an -NH- group and which may contain further substituents. To the polyamide, in the form of powder, granules, or chips, the dyestuff may be added as a powder, e.g. it may be a powder obtained by heating a polyamide with a dispersion of the dyestuff in a water-soluble alcohol and then cooling the mixture. Or the dyestuff may be added to the polyamide during or immediately after polycondensation. Fibres or films may be formed. The polyamide may be polyamide 6/6, 6, or 11, or a corresponding mixed polyamide. The dyestuff may be where X = H or an acylamino gp., e.g. benzylamino. There may be 1 part by weight dyestuff per 99 parts polyamide.
Patent GB-263125-A (GB)
Title: Improvements in and relating to the process of printing in greasy inks with gelatine printing surfaces
IPC: B41M5/025
Filed: 1926-12-06
Abstract: 263,125. Sandor Ges. Dec. 18, 1925, [Convention date]. Damping media for lithographic and like printing.-In printing from gelatine printing-surfaces, substances which reduce the swelling property of the gelatine are added to the damping medium in order to obviate the formation of elevated reliefs. A decinormal solution of sodium sulphate is instanced. The temperature of the damping medium may be raised to 25‹ C. or over.
Patent GB-244918-A (GB)
Title: Improved fireproof ceilings
IPC: E04B9/00
Filed: 1924-12-30
Abstract: 244,918. Gates, J. Dec. 30, 1924. Moulding ceilings in situ.-A ceiling, formed of plaster in which are embedded strips of canvas or scrim, and suspended from girders, joists, and the like by wires or canvas strips, is moulded by metal moulds b, mounted on wooden frames, and supported from the joists by bolts a, Fig. 1, or from girders m, Fig. 3, by adjustable bolts l. The bolts l are adjustable in sleeves S which are pivoted on slides adapted to work on a rod R and to be positioned according to the distance between girders. A pawl u, which maintains the hangers l in vertical position, can be released to allow the mould to be removed, the hangers being withdrawn through holes in the ceiling.
Patent GB-649629-A (GB)
Title: Chair
IPC: A47D13/10
Filed: 1948-12-06
Abstract: 649,629. Seats resilient mountings. KEMP, E. W., and NEATE, A. V. D. Dec. 6, 1948, No. 31492. [Classes 52 (i) and 52 (ii)] A chair, particularly a nursery chair comprises spring metal supports 12, 13 detachably mounted on a base 16 and detachably supporting a seat frame and, if desired, a back frame. The seat frame comprises a U-shaped tubular frame 24 suspended on hooks 20 ... 23 on the arms 18, 19 of the spring support, the ends of the tubular frame 24 being upturned to receive the ends of a U-shaped back frame 27. The seat comprises a flexible fabric 29 having leg holes 30 and is connected to the back rest fabric 28 which is detachably secured to the back frame 27. A tray comprises a frame 34 detachably supported on the spring supports and its table surface comprises a fabric. The spring supports 12, 13 are provided with feet 14, 15. When dismantled the chair may be packed into a small space.
Patent GB-845598-A (GB)
Title: Storage screen for direct-viewing storage tube
IPC: H01J29/39
Filed: 1957-10-09
Abstract: 845,598. Cathode-ray storage tubes. HUGHES AIRCRAFT CO. Oct. 9, 1957 [April 1, 1957], No. 31560/57. Class 39(1). A storage screen for a direct-viewing storage tube comprises a conductive support mesh on one side of which is disposed a uniformly thick layer of dielectric material e.g. talc in granular form to provide a storage surface and a film of magnesium fluoride disposed over the storage surface. The granular storage layer is preferably between 1 and 2 mils thick, so that the layer has low bombardment-induced conductivity. The magnesium fluoride may be evaporated onto the storage surface 42, either before or after the aluminium collector grid 44 is placed in contact with the storage surface. This layer must be thick enough to give its characteristic secondary electron emission to the storage surface but must not be so thick as to form a continuous smooth film over the entire target thereby resulting in the loss of the stable range of operation obtained by breaking up the storage surface into granules. Thus the thickness of the film is preferably between 800 and 20,000 Angstroms. In a process of forming this film, the screen is disposed within a chamber above a boat containing magnesium fluoride to be evaporated. A lens is mounted at an adjustable distance from the boat and is illuminated by a sodium yellow lamp. If the lens is at the same distance from the boat as is the screen a film of  wavelength thickness is formed at the first minimum of reflection and this thickness can be increased or decreased by moving the lens further from or closer to the boat.
Patent GB-1532498-A (GB)
Title: Switches
IPC: H01H15/02
Filed: 1976-07-29
Abstract: 1532498 Mechanical switches SIEMENS AG 29 July 1976 [5 Sept 1975] 31596/76 Heading H1N A switch assembly comprises a plurality of slide switches arranged side-by-side in an elongate housing 1, each switch comprising a contact bridge 7 rectilinearly movable to connect a pair of fixed contacts 3, 4 each of which has a terminal portion 13 extending beyond a side wall 10 of the housing 1 parallel to the direction of movement of the contact bridges 7, the side wall 10 having spacers 11 arranged therealong so that when the terminals 13 are plugged into a circuit board a space 12 is defined between the side wall 10 and circuit board. The terminal portion 13 of one 4 of the fixed contacts of each switch is cranked at 16 within the space 12. Each contact bridge 7 is mounted on a slide 6 having an operating knob 9 which is prevented from unintentional movement by a projection on a removable cover 8.
Patent GB-1425306-A (GB)
Title: Toy doll
IPC: A63H3/28
Filed: 1974-07-17
Abstract: 1425306 Dolls TOMY KOGYO CO Inc 17 July 1974 31667/74 Heading A6S Pressing a button 42 inwards of a doll's torso 10 against the biass of a spring 58 expels air from a bellows 36 through a pipe 34 past a sound mechanism 32 which functions only when air flows in the opposite direction and thus remains silent, depression of the button 42 simultaneously pivoting a lever 48, 53, 54, 56 about its fulcrum 50 so that rods 24 are slidden axially to tilt eyeballs 31 in their sockets. When the button 42 is released, the spring 58 gradually restores the position shown, the bellows 36 drawing air in past the sound mechanism 32 which now emits a kissing noise. During the sucking in of air, a child may hold the doll's lips 26, 28 against its own mouth, &c and temporarily stop the kissing noise emitted by the sound mechanism 32. While air is being sucked into the bellows 36, the lever 48, 53, &c is pivoted back about its fulcrum 50 and springs 25 withdraw the rods 24, so that weights 33 on the eyeballs 20 can pivot the latter back to their initial positions. Lashes 22 are secured ' to the eyeballs 31.
Patent GB-469173-A (GB)
Title: Improvements in or relating to machines for shaping airscrew blades
IPC: B23Q35/10
Filed: 1935-11-15
Abstract: 469,173. Machining airscrews. LANG, A. A. D. Nov. 15, 1935, No. 31716. [Class 145 (i)] [Also in Group XXII] In a copying-machine for producing airscrew blades, of wood from a model, the work and model are traversed relatively to the cutter and tracer in the longitudinal direction of the blade. The machine comprises a table 9 carrying the model 6 and one or more workpieces 7, 8 mounted on pins 25 and supported by wedges &c. 8a. the table being traversed on rollers 10 along the bed 11 and reversed at the end of each traverse either automatically or by hand. In the latter case, the length of each traverse may be adjusted to suit the length of cut. The cutters 2 and tracer 5 are carried by a frame A pivoted at 12 on a carriage 14 which is given a step-by-step feed between the traverses of the table 9 by means of a screw 16 or other means operated automatically or manually at 17. The carriage 14 slides on a beam 15 adjusted vertically on a gantry 1 by means of screws 18 and a cross shaft 21 rotated by a pulley 20. Each cutter is driven by a belt 4 from a separate electric motor 3 and the pressure exerted by the cutters on the work is adjusted by a weight 23 movable along an arm 22 attached to the frame A. The depth of cut may be varied by adjusting the tracer 5 axially on the frame by means of a hand wheel 24. The pins 25 for supporting the work and model may be attached rigidly to the table 9 or may be adjusted angularly in planes parallel and perpendicular to the traverse in order to allow the cutters to operate at the most efficient cutting angle. The machine may produce separate propeller blades for attachment to a hub or complete propellers as shown, the propellers being turned end for end to machine the two blades and being reversed on the table for machining the backs of the blades according to a different model. Two tables 9 may be used, the work being set upon one whilst it is being machined on the other, and the two tables may be used for machining the opposite sides of the work. Cutting may take place during one or both opposite traverses of the table. The model may be produced by hand or a finished propeller may be substituted for the model on the table 9 and a model produced therefrom.
Patent GB-1268246-A (GB)
Title: Photographic camera having an electromagnetic exposure control
Inventor: ORT WOLFGANG
IPC: G03B7/085
Filed: 1969-06-24
Abstract: 1,268,246. Actuating electromagnetic devices. EASTMAN KODAK CO. 24 June, 1969 [25 June, 1968], No. 31718/69. Heading H3T. [Also in Divisions G1 and G2-G3] An electromagnet in a camera exposure control is actuated by a circuit comprising a resistor and capacitor in series, the capacitor supplying the initial operating current and the resistor serving to provide a holding current and a recharging current. When the light falling on a photo-resistor 9 of a camera exposure control unit (see Division G1) falls below a given level a transistor 10 cuts-off and a transistor 11 becomes conductive. A capacitor discharges through 11 to actuate an electromagnetic device 13, a resistor 14 subsequently supplying a smaller holding current. The capacitor is recharged through resistor 14 and it may be used to energize a flash bulb 18.
Patent GB-1310269-A (GB)
Title: Hydrocarbon conversion process and catalyst therefore
IPC: C07C5/27
Filed: 1970-07-01
Abstract: 1310269 Hydrocarbon conversion catalysts UNIVERSAL OIL PRODUCTS CO 1 July 1970 [3 July 1969] 31807/70 Heading B1E [Also in Division C5] Catalysts comprise platinum, rhenium, germanium, and optionally a halogen, on a porous carrier. They may be formed by impregnating the carrier with compounds of the metals and any halide, drying and calcining in air. The metal oxides are preferably reduced with hydrogen in the absence of water and the reduced catalyst may be sulphided.
Patent GB-446826-A (GB)
Title: Improvements in or relating to evaporators, such as for the concentration of milk
IPC: B01D1/22
Filed: 1934-11-06
Abstract: In an evaporator for concentrating milk and other liquids in which the heating means arranged in its lower part are constituted by a jacket e and an annular drum f to which heating medium is supplied, the liquid is stirred by an eccentrically mounted agitator w comprising a flat bar with depending arms 2 rotating between and scraping the surfaces of the drum and container and superimposing <PICT:0446826/III/1> another agitator 3 comprising a helix rotating within a tube k mounted centrally within the drum.  The vessel may be under vacuum or pressure and the liquid admitted by pipes 4 and t rises uniformly up the annular heating chamber g, the outlet cocks v being closed.  During withdrawal of the material, the latter are opened and the concentrate discharged through the tube k.  For use as a crystallizer, cooling medium is supplied to the jacket or drum.
Patent GB-987529-A (GB)
Title: Manufacture of chlorinated hydrocarbons
IPC: C07C17/152
Filed: 1963-08-13
Abstract: Chlorinated hydrocarbons are prepared by reacting a hydrocarbon with elemental oxygen and with hydrogen chloride in the gaseous phase in the presence of a catalyst comprising cupric chloride and potassium chloride, the molar ratio of potassium chloride to cupric chloride being in the range 2.1 : 1 to 8: 1, the concentration of cupric chloride being between 10 and 150 grams per litre of catalyst bed. Specified hydrocarbons are benzene, benzene derivatives which are known to be chlorinatable, alkanes containing 1-7 carbon atoms and olefins containing 2-7 carbon atoms.  In the Example, ethylene is converted to a product containing ethylene dichloride and minor amounts of other chlorohydrocarbons containing 2 carbon atoms.ALSO:A catalyst for the oxychlorination of hydrocarbons (see Division C2) comprises cupric chloride and potassium chloride, the molar ratio of potassium chloride to cupric chloride being in the range 2,1:1 to 8:1, the concentration of cupric chloride being between 10 and 150 grams per litre of catalyst bed.
Patent GB-1325453-A (GB)
Title: Four-stroke cycle internal combustion engine
IPC: F02B75/02
Filed: 1970-07-25
Abstract: 1325453 Four-stroke I C engines TREADWELL CORP 25 July 1970 [25 July 1969 24 June 1970] 31943/70 Heading F1B Air is supplied to an engine cylinder through an inlet valve 6 in a cooled and compressed condition and is further compressed on the compression stroke of the piston 2. The compressed air is delivered through the exhaust valve 9 after piston compression to a recuperator 12 or recuperators 12 and 27 in which it is heated. The heated compressed air is supplied to the cylinder through an inlet valve 7 and fuel is sprayed by an injector 10 for the period during which the valve 7 is open to provide substantially constant pressure combustion or as the valve 7 is closing or immediately after closure to provide constant volume combustion. The exhaust gases are discharged through the exhaust valve 8 to the recuperator or recuperators 12 and 27 and a turbine 11 which may drive the supercharging compressor 22. The supercharging may be effected in a multi-stage compressor with cooling to ambient temperature between the stages. Examples of the timing of the operation of the valves 6 to 9 and the temperatures and pressures occurring at stages in the cycle of operations of the engine are given in the specification. In Figs.4 to 9 (not shown), temperature-entropy diagrams of cycles in accordance with the invention and standard diesel cycles are illustrated.
Patent GB-831912-A (GB)
Title: Improvements in or relating to condensers and heat-exchangers
IPC: B32B15/08
Filed: 1957-10-14
Abstract: A condenser or heat-exchanger has its heat-transfer surface and/or tubes provided with a protective coating of a self-setting or thermosetting synthetic resin, together with a silicone compatible with the resin composition applied as a very thin film with a thickness in the range 10m  to 30m .  A suitable resin is a phenolformaldehyde resin which may be plasticized with a vinyl polymer.  Pigments such as lead chromate or chromium oxide may be added.  More than one coat may be applied, the proportion of fillers and plasticizers being reduced in successive coats.  The coating may be applied by spraying or by enclosing the surfaces in a vacuum chamber and admitting the composition.
Patent GB-807521-A (GB)
Title: Improvements in folders and the like having label tabs
Inventor: POSNER BERNARD BENJAMIN
IPC: B42F21/08
Filed: 1954-11-04
Abstract: 807,521. Filing papers; tabs. SHANNON Ltd., (Scholl A. K. Geb.). Nov. 2,1955 [Nov. 4, 1954], No. 31997/54. Class 16 A folder 1 or the like has a bar 2, 3 with an L-shaped cross-section, the first limb 2 being in the plane of and secured to the folder 1 and the second limb 3 at right angles thereto, the free edge of which is engaged by one or more projections 7 of a slidable tab 4 whose body fits against and extends beyond the first limb 2. The tab 4 is formed from a single piece of metal and carries a label 5 under a protective sheath 6. The projections or lugs 7 are stamped out from the lower half of the tab and pips 9 (not shown), 10 pressed out, the pip 9 in the lower half co-operating with spaced holes along the limb 2 to position the tab and the pip 10 engaging a cut-out in the back edge of the sheath 6. Cut-outs 11 underlie the back edge to assist removal of the sheath 6. The top half of the tab is sloped backwards to make it easier to read the label 5.
Patent GB-1473569-A (GB)
Title: Multi-feed circular knitting machines
IPC: D04B15/68
Filed: 1974-07-19
Abstract: 1473569 Knitting machines PRECISION FUKUHARA WORKS Ltd 19 July 1974 [21 Sept 1973] 32027/74 Heading D1C The needles 3 in a multi-feed circular knitting machine are raised at each feed by a needle raise cam 36 acting through control jacks 8 and amplifying levers 18 so that the relatively shallow profile cam 36 produces a steeply sloping needle path, the jacks 8 being selectively disengageable from the cam 36 by presser jacks 7 actuated by two vertical arrays of presser cams 17, 42 in accordance with the pattern, the cams 42 acting first to select needles to remain at welt level (Fig. 4 and Fig. 10, C) while the cams 17 select needles which have been partially raised to remain at tuck level (Fig. 10, B). A shallow profile cam 31 engages the levers 18 to lower the needles along a path of steep slope and to raise the jacks 8. At the same time those jacks which were rocked out of engagement with the cam 36 are acted on by a return cam 39. The presser jacks 7 are pivotally mounted at their lower ends and are provided with presser butts in echelon formation at thirty seven levels.
Patent GB-1118046-A (GB)
Title: Stabilisation of halogen-containing resins
IPC: C08L27/04
Filed: 1966-07-18
Abstract: Halogen containing polymers, particularly PVC, are stabilized by the addition of (a) a zinc and/or cadmium carboxylate, (b) a tertiary phosphite ester, (c) an epoxidized cyclohexene compound or a glycidyl ether and (d) a polyhydric alcohol; there may also be present a hindered phenol, other epoxy compounds and other metal carboxylates. Many specific compounds of each type are named.  The stabilizers are especially useful for unplasticized resins but an ester or phosphate ester plasticizer may be added.
Patent GB-1341156-A (GB)
Title: Single-channel mis flip-flop circuit
IPC: H03K3/356
Filed: 1972-07-11
Abstract: 1341156 FET bistable circuits MICROSYSTEMS INTERNATIONAL Ltd 11 July 1972 [19 Nov 1971] 32266/72 Heading H3T A bi-stable consisting of F.E.T's T 4 , T 6 , T 7 , T 8 , T 9 , T 10 , connected as shown in Fig. 5, is triggered from one state to the other by successive clock pulses applied at C to the gates of T 9 , T 10  and to the sources of T 7 , T 8 . If, for example, T 6  is off, then its negative drain voltage is applied through T 9  when the clock pulse turns on T 9  to charge the gate capacitance of T 8 , which is non-conductive because the negative clock voltage is concurrently applied to its source. When the clock signal returns to earth, T 8  conducts and earths T 6  collector so changing the bi-stable state. Further F.E.T's (T 3 , T 5 , Fig. 3, not shown) may be connected in series with T 7 , T 8  respectively to give J-K operation in response to J, K inputs at their gates. Clear and set inputs, operating asynchronously, can be supplied through further F.E.T's (T 11 , T 12 , Fig. 4, not shown) connected respectively between earth and the gates of F.E.T's T 4  and T 6 ; further F.E.T's (T 13 , T 14 ) being necessary in this case to disable the feedback F.E.T's T 7 , T 8  during the clear and set periods respectively.
Patent GB-452246-A (GB)
Title: Devices for producing fuel-air mixtures for internal combustion engines
IPC: F02M21/00
Filed: 1935-11-21
Abstract: 452,246. Fuel injectors; spray carburetters. YACCO S. A. F., 42, Avenue de la Grande-ArmÚe, Paris. Nov. 21, 1935, No. 32342. Convention date, Nov. 23, 1934. [Class 7 (iii)] In a fuel-injection device in which a pump 5 supplies fuel under pressure to a series of nozzles A each comprising a valve 6 and closing spring 7, the springs of the nozzles being of different strengths to ensure that the valves, which are opened by the fuel pressure, open successively, the fuel pressure is determined by a byepass 15 controlled by a valve 8 opened by the fuel pressure acting against a spring 9 to the limit permitted by the engagement in a slot 13 in the throttle control rod 12 of the end of the control lever 11 for the valve. The fuel may be injected directly into the cylinders or into an external chamber 1 to which air is admitted past a valve 16 coupled to either the lever 11 or the rod 12.