baber/WOPTO huggingface dataset:
Patent GB-569343-A (GB)
Title: Improvements relating to self-starting synchronous electric motors
IPC: H02K1/14
Filed: 1942-09-25
Abstract: 569,343. Synchronous motors. SAUTER AKT.-GES. FABRIK ELEKTR. APPARATE, F. Sept. 25, 1942, No. 13508. Convention date, Sept. 26, 1941. [Class 35] A small self-starting, slow-speed synchronous motor has a stator formed from two star-shaped sheet iron blanks 53, Fig. 3, the lugs 22 of which are bent up at right angles to the sheet to form pairs of main and auxiliary poles. The poles 4, 5, of the two blanks are interdigitated, as shown in Fig. 1, to form a cage-like structure for enclosing the rotor, shading rings 6, 7 being fitted over the poles to produce an out-of-phase flux in the auxiliary poles, the rings having slits 8 adjacent the main poles. In the construction shown in Fig. 1, the cage-like structure is surrounded by an annular exciting coil 9 encased by dished iron plates 13, 14, to which the central portions 1, 2 of the blanks are attached by tubular rivets 11, 12 forming housings for the rotor bearings. Fig. 2 shows a modified construction in which excitation is provided by cylindrical coils 18, 19 surrounding cores 16, 17 secured to flat plates 20, 21 which are riveted to the stator blanks. The rotor, not shown, may consist of hardened steel discs, with or without permanent magnetization, or of soft iron discs with starting windings. The hardened discs may be spaced on an iron hub and have peripheral slits, which may be staggered. In another construction the rotor may consist of two cup-shaped members, with or without peripheral slits, arranged base to base or rim to rim.
Patent GB-714445-A (GB)
Title: Improvements in spring suspensions for the wheels of motor cycles and the like
IPC: B62K25/28
Filed: 1952-01-17
Abstract: 714,445. Spring suspensions for motor-cycles and the like. HUSQVARNA VAPENFABRIKS AKTIEBOLAG. Jan. 17, 1952 [Jan. 20, 1951.], No. 1388/52. Class 136(3) [Also in Group XXXII] A spring suspension for a wheel of a motor-cycle or the like comprises a cylindrical helical spring 11, tapered at least at one end and surrounded by a rubber, or like, sleeve 12 which has a smaller internal diameter than the external diameter of the cylindrical portion of the spring. A pair of angular fork legs 1 pivoted to the frame 4 at 3 support the rear wheel axle at 6 and each is connected at 10 to an inclined spring device 5. The upper end of the spring is connected to bracket 7 on the frame member 8 and the lower end is connected to member 1 by means of bolts 16, 17 respectively which are tapered at 18 to grip the spring. Metal caps 9, 10 are provided at the ends of the spring.
Patent GB-789346-A (GB)
Title: Improvements in the manufacture of polyhydroxy compounds
Filed: 1956-01-16
Abstract: Polyhydroxy compounds are produced by a process comprising forming a hydroxy-aldehyde by a condensation reaction between formaldehyde and a higher aldehyde containing at least 2 carbon atoms in the molecule and having at least one hydrogen atom attached to the carbon atom next to the carbonyl group, the condensation being carried out in the presence of an anion-exchange resin as a catalyst, and subjecting the hydroxy aldehyde so obtained to catalytic hydrogenation.  Suitable "higher" aldehydes are, for example, acetaldehyde, propionaldehyde, n-butyraldehyde and isobutyraldehyde. Preferably the anion-exchange resin is one containing quaternary ammonium groups.  Suitable ones are, for example, the resins obtained by reacting a tertiary amine with a haloalkylated cross-linked polymer of an aromatic vinyl compound, such as a chloromethylated copolymer of styrene and divinyl benzene.  Other suitable ones are obtained by reacting an alkylating agent, e.g. methyl chloride or dimethyl sulphate with a resin containing amino groups such as that obtained by the reaction of formaldehyde, aniline and ethylene diamine.  Weakly basic anion-exchange resins containing tertiary amino groups, such as those obtained by reacting dimethylamine or another secondary amine with a chloromethylated copolymer of styrene and divinyl benzene, are also suitable.  The hydrogenation of the hydroxy-aldehyde may be effected by treating the mixture containing it with hydrogen under high pressure and at elevated temperature in the presence of a hydrogenation catalyst, such as Raney nickel.  In the example a mixture of formaldehyde and propionaldehyde is passed through a bed of a granulated anion-exchange resin containing quaternary ammonium chloride groups and actuated by treatment with sodium carbonate solution; the effluent from the catalyst bed is steam-distilled to reduce its formaldehyde content and is then treated with hydrogen in the presence of Raney nickel at elevated temperature and pressure; the resulting solution is evaporated and trimethylol ethane crystallizes out.
Patent GB-250678-A (GB)
Title: Improved method of making floors, tennis courts and the like
IPC: E01C13/06
Filed: 1925-01-16
Abstract: 250,678. Idris, W. H. W. Jan. 16, 1925. Addition to 222,192. Compositions containing oils and resins or gums.-A composition for forming floors and hard courts for games consists of porous mineral material, such as ground pumice, ground tiles or brick, or sand, and a drying oil containing gums, resins, or gum resins. The drying oil may contain 10 to 30 per cent by weight of gums &c. As an example, 5 gallons of drying oil containing gums are mixed with 95 lbs. of ground pumice and 5 lbs. of colouring matter. Gums of the kauri or copal type may be employed.
Patent GB-1077491-A (GB)
Title: Audio teaching apparatus
Inventor: KARNS RAY LEO
IPC: G09B5/04
Filed: 1966-01-12
Abstract: 1,077,491. Microphone attachments; sound directing appliances; inductive signalling. BOWMAR INSTRUMENT CORPORATION. Jan. 12, 1966, No. 1443/66. Headings H4J, H4U and H4X. [Also in Division G5] Apparatus, e.g. for teaching languages, comprises a transmitting inductor for wirelessly transmitting information, a portable soundproof chamber 10, having a sensing inductor therein and means connected to the sensing inductor for converting the information into audible sound. A student receives the audible sound through head-phones connected at 47 to a power amplifier 44. The chamber which has an acoustical liner 30 is of substantially conical shape with a concave upper portion 27, and is adjustably mounted on a base 16. A student upon hearing the transmitted information repeats what he has heard, and then hears his own voice via an acoustic microphone and the head-phones. A volume control knob 48A is provided.
Patent GB-606587-A (GB)
Title: Improvements in or connected with boots and shoes
IPC: A43C15/10
Filed: 1946-01-16
Abstract: 606,587. Ice grips and like non - slipping devices. DOWLING, L. H. Jan. 16, 1946, No. 1468. [Class 17(ii)] Athletic footwear is provided on the sole with a loosely linked chain or chains 4 connected e.g. by split pins 5 at intermediate positions to thin studs 3 permanently attached t o the sole or to straps fastened over the uppers.
Patent GB-858460-A (GB)
Title: Over-running clutches
Inventor: CHATTERTON ERNEST EDWARD
IPC: F16D41/22
Filed: 1958-01-15
Abstract: 858,460. Ratchet clutches; slip couplings. NAPIER & SON Ltd.. D. Jan. 1, 1959 [Jan. 15, 1958], No. 1477/58. Class 80 (2). In an overrunning dog clutch for a turbinedriven vessel propeller shaft, wherein a sleeve 16 is helically moved with respect to a supporting driving (or driven) member 10 to engage or disengage its sawtooth dogs 21 with corresponding dogs 22 on a driven (or driving) member 11 when overrun of the members 10, 11 with respect to each other effects limited relative rotation between the sleeve 16 and the member 10 by means of a frictional drag means between the said sleeve and the member 11, the said helical movement is guided by slots 20 in the sleeve 16 engaging rollers 14 free on fixed radial posts 13 in the member 10 and driving torque is transmitted via blocks 12 integral with the member 10 which, when the dogs 21, 22 are engaged, abut sides 18 of grooves 17 in the sleeve 16 which grooves limit relative movement between the said sleeve and the member 10. The slots 20 and rollers 14 are arranged at a greater radius than the blocks 12 and grooves 17. The slots 20 are sufficiently long to ensure a clearance at all times between the rollers 14 and the closed ends of the slots. The frictional drag means comprises friction linings 29 between rings 33, 30 respectively splined to the sleeve 16 and to a sleeve 27 splined to the member 11, the ring assembly being permanently spring clamped between the faces 24, 28 respectively of the member 11 and the sleeve 27. The slots 20 are inclined in the opposite direction to that shown when the member 11 is driving.
Patent GB-727727-A (GB)
Title: Improvements in or relating to polymerization process and catalyst
IPC: C08F4/00
Filed: 1952-01-18
Abstract: Ethylenically unsaturated monomers are polymerized in the presence as catalyst of a hydride of an element in the third column of the periodic table having at least one singly shared electron bond.  The polymerization may be effected in bulk, solution, e.g. in tetrahydrofurane, or in the gaseous phase and may be assisted by light waves of from 3000 to 5000   units and "seed" polymers.  The preferred catalysts are hydrides of boron, e.g. diborane.  Specified monomers are ethylene, propylene, butylenes, methyl and ethyl methacrylate, ethyl acrylate, n-butoxyethyl methacrylate, alpha - chloroacrylic acid, vinyl chloride, vinyl fluoride, vinylidene fluoride, vinylidene chloride, trifluorochloroethylene, vinyl acetate, vinyl laurate, vinyl stearate, esters of maleic and fumaric acids, N-vinyl phthalimide, styrene, alpha-methyl and para-methyl styrene, 2,4-dimethyl styrene, vinyl naphthalene, vinyl dibenzofurane, vinyl pyridine, vinyl thiophene, vinyl methyl ether, vinyl ethyl ketone, butadiene, isoprene, piperylene, diethyl butadienes, diheptenes, dioctenes, dinonenes, diallyl phthalate, divinyl benzene, diallyl carbonate, myrcene, allocymene, and mixtures.
Patent GB-1180211-A (GB)
Title: Internal Combustion Engine
Inventor: BIELAWSKI WLODZIMIERZ
IPC: F02B71/00
Filed: 1966-01-12
Abstract: 1,180,211. Two-stroke engines. W. BIELAWSKI. Dec. 7, 1966 [Jan. 12, 1966], No. 1511/66. Heading F1B. Charge enters a compression space below a piston 4, Fig. 1 through a valve 11 in a port formed in the end wall 3 through which wall the piston rod 5 passes, the charge being transferred to the combustion space through a transfer passage formed either in the cylinder wall or in the piston. The exhaust port 12 is piston controlled. In a fuel injection engine Fig. 3 (not shown) the transfer passage 8 is formed in the piston and contains a non-return valve.
Patent GB-555211-A (GB)
Title: Apparatus for electrically determining the moisture content of granular or powdery materials
IPC: G01N27/22
Filed: 1942-02-06
Abstract: 555,211. Inductance capacitance and powerfactor measurements determining physical qualities of material. MARCONI INSTRUMENTS, Ltd., and BARTLEY, W. B. Feb. 6, 1942, No. 1611. [Class 37] The moisture content of a given volume of granular or powdery substance such as grains of wheat is determined by measuring the electrical properties such as the dielectric constant or the power factor and automatically compensating for the change in density that occurs with change in moisture content. Four condensers a, a<SP>1</SP>, a<SP>11</SP>, a<SP>111</SP>, and a variable resistor a<SP>1111</SP> are arranged to form a Wheatstone bridge. Across the condenser a<SP>1</SP> is connected a reactor, shown as a condenser B consisting of a container b and an electrode b<SP>1</SP>, the substance under test being placed within the container to form the dielectric of the condenser. The condenser a is adjusted by means of a dial e<SP>1</SP> until balance is obtained. The container b with its contents is then placed on the arm c of a spring balance and thereby moves a cursor e in accordance with the weight. The scale is calibrated in terms of dielectric constant and the scale reading indicated by the cursor is corrected for the weight of the substance relative to the given volume. Alternatively the weighing means may operate an auxiliary control, such as a small variable air condenser, so that the measuring circuit is adjusted to read the true value.
Patent GB-1345132-A (GB)
Title: Vehicle seat belt assemblies
IPC: B60R22/48
Filed: 1972-01-13
Abstract: 1345132 Seat belt with warning signal ALLIED CHEMICAL CORP 13 Jan 1972 [15 Jan 1971] 1645/72 Heading A3V In a seat belt assembly a warning signal 10 is activated by a two position switch 16 operated by a locking member of a belt retractor reel through one of two alternative branches i.e. in a first position of the switch to which the latter is biassed and which it adopts on belt withdrawal a branch 13, 15 is selected and a timing switch in a timing module 18 is started, the circuit not being closed until a preset time interval has elapsed while on retraction of the belt the switch 16 is moved by the locking member to its second position in which a branch 11 is chosen and the warning signal 10 is actuated. A switch 12, which may be the ignition switch of a vehicle or operated by engaging the vehicle transmission into a moving gear, is provided to open the circuit and inactivate the signal 10 when the vehicle is switched off or not moving respectively. The signal is powered by a voltage source 14, conveniently a 12 volt DC battery. Pressure sensitive switches in the vehicle seats inactivate the signal unless there is an occupied seat with the corresponding belt retracted. The time delay provided by the module 18 is conveniently six hours and is intended to discourage the withdrawal of the belt without proper fastening of same e.g. by knotting the belt.
Patent GB-1277371-A (GB)
Title: Method and apparatus for spraying liquid
IPC: B05B7/08
Filed: 1970-01-13
Abstract: 1277371 Spray producers NIPPON KOGEI KOGYO CO Ltd 13 Jan 1970 [7 Aug 1969] 1673/70 Heading B2F Liquid is sprayed in a pattern having an elliptical or flattened cross-section by producing a conically-shaped spray by injecting air and liquid from concentric annular slits and injecting from opposite sides of the spray a pair of air jet streams 9 in inward and tangential directions to the cross-sectional circle of the sprayed liquid. In the embodiment shown in Fig. 13, two pairs of air jets 11, 11' are provided. The device may be used for electrostatic spraying.
Patent GB-628144-A (GB)
Title: Improvements in and relating to a hatching device
IPC: B43L13/24
Filed: 1947-01-20
Abstract: 628,144. Rulers. BAER, G. Jan. 20, 1947, No. 1754. Convention date, Jan. 30, 1946. [Class 97 (iii)] A hatching device is characterised in that a movable foot adhering by friction on the drawing surface is linked with the rule by an extensible arm which may be shortened by any predetermined amount by pressure on a lever provided with a press-button located above the foot so that finger pressure on this button acts entirely on the foot which acts as a fulcrum and adheres to the surface. The link 2 to which the rule or other drawing instrument is attached is connected to the foot 1 by an articulated triangle comprising the control lever 3 carrying an operating knob 4, a rod 5, and a micrometric screw 6 having a graduated nut 7. A spring located in the barrel 10 which is closed by a muff 11 draws the nut against a strut 9 articulated on link 2, the screw 6 being free to slide axially through the strut. The instrument is adjusted for the desired hatching spacing by graduation on the barrel 10 which are read against the free edge of the muff 11 and by the vernier on nut 7 which is read against an index on the strut 9. Pressure on the control knob 4 causes the link 2 and its associated rule to be withdrawn through the desired spacing whilst the foot adheres to the drawing and on applying pressure to the rule and releasing the control knob the foot slides over the surface under the action of the spring and thus re-sets the apparatus. The foot may be of rubber having a large area, but with a small contacting surface or may bear small points on its surface to adhere to the drawing surface without sinking into it. Alternatively, the foot may be mounted on a sledge sliding in a slideway which is secured to the drawing surface.
Patent GB-685468-A (GB)
Title: Improvements relating to heating elements such as grill-frets for gas-stoves and thelike
IPC: F24C15/24
Filed: 1950-01-23
Abstract: 685,468. Grilling stoves; radiants. DICKINSON, F. G. Jan. 22, 1951 [Jan. 23, 1950], No. 1754/50. Class 126 , A fret for gas-heating purposes comprises a rigid cast backing plate and a sheet of less rigid material secured by holding formations at the edges of the backing or the sheet and bent over to hold the sheet to the backing. A grill fret has an elongated rectangular cast-iron backing plate 1 with perforations 2, downward flanges 3 at its edges and mounting pieces 4 at each end. The under sheet 5 of expanded metal fits inside the flanges 3 with some clearance, at least at the ends. Upturned flanges 6 on the long sides of sheet 5 space it away from the backing plate 1. Shallow U-shape holding pieces 8 of steel wire or sheet are cast in the flanges 3 with the legs downwardly and inwardly inclined. The yoke pieces 10 may be straight, bowed or carry projecting lugs. After the sheet 5 has been slid in endwise under the holding pieces 8 they are bent over so that the sheet 5 is supported at several points along each of its long sides. In another embodiment the backing plate 1 is formed with slots 11 opening into shallow recesses 12 and lugs 13 provided on the sheet 5 project through the slots 11 and are bent over and flattened into the recesses 12. The recesses may be omitted, or the sheet 5 may be formed with side flanges to embrace the sides of the plate 1 and fold over against the top of the plate.
Patent GB-283962-A (GB)
Title: Improvements in chain grates for steam generator and other furnaces
IPC: F23H11/04
Filed: 1927-09-09
Abstract: 283,962. Bennis, A. W. Jan. 21, 1927, [Convention date]. Divided on 283,945. Grates.-Narrow air spaces g<1>, Fig. 2, are provided between laterally adjacent links a of a travelling grate by reducing the width of the links on one or both sides to. less than that of the boss portions i of the links, and grooves j inclined to the direction of the incoming fuel are formed on one or both sides of the links. Ribs m on one or both sides of the links form ash pockets n. In the modification shown in Fig. 5, an inclined air port b leads from the ash pocket to deliver air forwardly. The ashes are discharged from the pockets as the links pass around the front and rear drums. The fuel supporting surface is curved as shown.
Patent GB-142425-A (GB)
Title: Improvements in trousers and waist-band linings for the same
IPC: A41F9/00
Filed: 1920-01-20
Abstract: 142,425. Brown, A. A. Jan. 20, 1920. Trousers.-Ready-made trousers are readily altered to suit different waist measurements by providing a back seam 9, Fig. 1, the edges of which are stitched down at 12 but can be unstitched and re-fastened closer together as shown in Fig. 3 so as to give greater fullness to the waist. The waist lining consists of two parts B and B<1> which can be unstitched at the back in the same way as the seam, thus avoiding cutting. The waist lining has a stiffener 1, Fig. 8, and a row of stitches 5 covered inside by a loop 6 of lining material 2.
Patent GB-227871-A (GB)
Title: Improvements in or relating to clock-work-operated fuses for shells and the like projectiles
IPC: F42C19/02
Filed: 1924-05-13
Abstract: 227,871. Tavannes Watch Co. Soc. Anon., (Assignees of Gros, C.). Aug. 2, 1923, [Convention date]. Projectile f u z e s. - A clockwork fuze, for example of the kind described in Specification 219,941, is put in a casing 3 comprising two semicylindrical parts each provided with an external longitudinal rib 4, the two ribs being dia. metrically opposed to each other and fitting into grooves 5 in the outer fuze body 2, into which the fuze and its casing are secured by a screwed nose-piece 1. Transverse plates of the clockwork frame are held in place by radial projections 7, thereon fitting into notches in the casing 3. Longitudinal poets 13 at an angle of 120‹ from each other are secured by screws 14 to the uppermost plate. The Specification as open to inspection under Sect. 91 (3) (a) describes also the securing of transverse base plates by lugs 9 and screws 11. This subject-matter does not appear in the Specification as accepted.
Patent GB-1394023-A (GB)
Title: Production of organic compounds containing thioethyl groups
IPC: C07B45/06
Filed: 1973-01-12
Abstract: 1394023 Thioethyl compounds DEUTSCHE GOLD - UND SILBER - SCHEIDEANSTALT 12 Jan 1973 [14 Jan 1972] 1796/73 Heading C2C Compounds containing a thioethyl group are prepared by treating an aqueous thiocyanate (e.g. KCNS) solution with ethylene oxide in the presence of an inert organic medium which is immiscible with water, and thereafter reacting the organic phase (containing ethylene sulphide) with a compound capable of adding to ethylene sulphide to give the compound containing a thioethyl group. Separation of the organic and aqueous phases is assisted by addition of electrolytes. Apparatus for batch and continuous processes are described. In examples: morpholine gives morpholinoethyl mercaptan, piperidine gives piperidinoethyl mercaptan, dibutylamine gives dibutylaminoethyl mercaptan, amyl mercaptan gives amylmercaptoethyl mercaptan and amylmercaptoethylmercaptoethyl mercaptan, glycine ethyl ester gives N-(#-mercaptoethyl)glycine ethyl ester and chloroacetyl chloride give chloroethyl chlorothioacetate. Many other amines are specified.
Patent GB-1496067-A (GB)
Title: Broadband electroacoustic delay lines
IPC: H03H9/36
Filed: 1975-01-15
Abstract: 1496067 Broad-band delay lines LIGNES TELEGRAPHIQUES ET TELEPHONIQUES 15 Jan 1975 1806/75 Heading H3U [Also in Division H1] In a broad-band delay line, an input transducer 4 at one end of delay medium 1 (e.g. corundum) is tuned to a different acoustic frequency from its corresponding output transducer (not shown) at the other end, and each transducer is connected to a respective impedance 12, e.g. an inductance 20, to constitute a series resonant circuit having a resonant frequency which is different for each transducer/impedance combination and is different from the acoustic frequencies of the individual transducers. As shown, there are three input/output transducer pairs, the input transducers 4, 5, 6 being connected in parallel between input 16 and ground plane 15, and being connected to respective inductors 12, 13, 14 by strips 7<SP>1</SP> which may be resistive. The transducers comprise electrodes on a piezoelectric film, e.g. zinc oxide, or an alumina substrate 11. A microstrip line 10 on the substrate interconnects the input 16 and the transducers, pans 17, 18 of the line constituting capacitors.