baber/WOPTO huggingface dataset:
Patent GB-338561-A (GB)
Title: Improvements in wheels for bicycles, aeroplanes and the like
Inventor: KOK MARINUS DE
IPC: B60B1/00
Filed: 1929-08-21
Abstract: 338,561. Kok, M. de. Aug. 21, 1929. Spores, securing and adjusting; hubs.-Wire spokes 1 have beaded outer ends 3 seated in the rim base, the inner ends being formed with laterally-projecting heads 12 to engage recesses 10 in flanges 4, 5 which are spaced, to tension the spokes, by means of the hub barrel 6. The latter may engage in recesses 7, or grooves, in the spoke flanges 4, 5, and the interengaging parts may be shaped to prevent relative rotation. The inner ends of the spokes are seated in grooves 11 leading from the recesses 10, alternate spokes being arranged with the heads 12 oppositely-directed to permit crossing of the spokes. In a modification, the heads 12 are eyeletted and secured by bolts and nuts.
Patent GB-436689-A (GB)
Title: Improvements in and connected with projectile fuzes
IPC: F42C9/14
Filed: 1934-09-04
Abstract: 436,689. Balances for clockwork time fuzes. PERRENOUD, G., 11, Mi-Cote, Le Locle, Switzerland, and ARAGONE, C., 3, Viale Mazzini, La Spezia, Italy. Sept. 4, 1934, No. 25451. Convention date, Oct. 17, 1933. [Class 139] [See also Group XXI] In a clockwork time fuze for projectiles, the anchor 18, Figs. 1 and 3, is connected by a fork and pin to the spindle of the balance 16 slidably keyed to an axially disposed wire 13 acting as a torsion spring controlling the balance.
Patent GB-223933-A (GB)
Title: Process for connecting glass and metal pieces having tubular ends
IPC: H01J5/26
Filed: 1924-10-25
Abstract: 223,933. Compagnie GÚnÚrale de TÚlÚ- graphie sans Fil. Oct. 27, 1923, [Convention date]. Joints formed by molten glass. - To make an air-tight joint between a metal and a glass tube of the same diameter, for example in electric lighting and wireless signalling apparatus, a ring 4 of fusible glass is placed on the glass tube 3 at a short distance from the end, and while heated sufficiently to make the ring plastic the glass tube is pushed into the internally-enamelled flared end 2 of the metal tube 1.
Patent GB-1502612-A (GB)
Title: Discharge lamps containing an inert gas and a metal halid
IPC: H01J61/16
Filed: 1974-06-07
Abstract: 1502612 Metal vapour lamps THORN ELECTRICAL INDUSTRIES Ltd 9 June 1975 [7 June 1974] 25471/74 Heading H1D To maintain arc stability with no or minimal ballast in a discharge lamp filled with Xe and/or Kr at 300-500 Torr cold-fill pressure plus a metal halide, the current density is made to exceed 16 ma./mm.<SP>2</SP>, based on the cross-section of the tube, by sufficient margin to cause the differential resistance dV/dI to become positive. The metal halide added in excess as the compound or elements is preferably a halide of any of Na, Li, Cd, Zn, Mn, In, Tl, Ga, Sn, Pb. In the Figure relating to a tube of 4 mm. bore, the transaction to positive slope occurs at 1A or 80 mA/mm.<SP>2</SP> with Xe and the halide indicated against the respective V-I curve. Luminous efficiences up to 125 L/W are attainable. The lamps are tubular, of quartz with pure or thoriated W electrodes (Fig. 2, not shown).
Patent GB-509877-A (GB)
Title: Artificial teeth
IPC: A61C13/10
Filed: 1938-08-31
Abstract: 509,877. Artificial teeth. JACKSON, L. MELLERSH-. (Dentists' Supply Co. of New York). Aug. 31, 1938, No. 25517. [Class 81 (ii)] Artificial teeth are formed with side walls 29 converging lingually to provide an anchorage cavity in which a pin 37 is positioned, a socalled " rubber ledge '' 32, Figs. 3 and 4, 41, Fig. 13, or 61, Fig. 18, an undercut recess, e.g. 33, Fig. 4, within the ledge and a vent, e.g. 34, Fig. 4, leading from the recess to provide a space for air when the cavity is filled with rubber. In the construction shown in Fig. 13, the cavity is bridged by a bar 48. The vent may extend to the exterior of the tooth and may be in a lateral'direction as shown at 59 in Fig. 18.
Patent GB-1044108-A (GB)
Title: Hydro-pneumatic suspension devices
IPC: B60G17/044
Filed: 1965-06-17
Abstract: 1,044,108. Hydro-pneumatic shock absorbers. ADAM OPEL A.G. June 17, 1965 [July 3, 1964], No. 25621/65. Heading F2S. In a hydro-pneumatic damping and selflevelling suspension unit, comprising: operating and control pneumatic springs 50, 60 accommodated in the annular space between an outer casing 10 and an inner damper tube 31 in which slides a piston 41 with through passages 127 controlled by spring plates 128 and which has a rod 11, for oscillations about a mean piston position which is below a median position M, fluid is drawn from the space 80 of the control pneumatic spring 60 past a valve 85 into the upper chamber 83 of the tube 31 and is pumped into the lower chamber 72 to increase the pressure within the space 70 of the operating spring 50 and progressively raise the mean position of the piston 41 until it again reaches the median position M. As soon as the pressure in the lower damping space 72 exceeds the design value a limiting valve 120 opens so that fluid can pass from the space 70 of the operating spring 50 to the space 80 of the control spring 60. The limiting valve could, alternatively, be locatedin the piston 41. During unloading, the upper free end of an outflow control spring 131, having its lower end connected to a holder 130 carried by the lower end of the rod 11, engages a spring-loaded valve plate 89 to lift a valve pin 92 carried thereby from its seat so that fluid flows from the space 83 back into the control fluid space 80, the diaphragms 51, 61 of the operating and control springs 50, 60 returning to the respective shapes shown in full lines. The adjacent ends of the diaphragms 51, 61 are secured to a partition 34, the other ends being connected respectively to a lower bead 54 and a valve plate 36. The spaces 70, 72 communicate through ports 71 at the lower end of the damper tube 31. The pneumatic compartments of the springs 50, 60 are filled through valves such as 110 in the partition 34. In a modification, Fig. 3 (not shown), limiting ball valves 220, 230 replace the plate valves 128 and the upper end of the control spring 131 is secured to the valve plate 89, the lower end of the spring being connected to the arms 244 of an annular slider 241 which has a conical internal surface 243 to variably close ports 204, 205 through the lower end of the rod 11. The slider 241 is urged into its lowermost position by a spring 241 which acts between a spring ring 249 on the rod 11 and the slider arms 244.
Patent GB-462829-A (GB)
Title: Improvements in or relating to the manufacture of plaster board and the like
IPC: E04C2/288
Filed: 1935-09-16
Abstract: 462,829. Plaster boards &c. LEFEBURE, V., and IMPERIAL CHEMICAL INDUSTRIES, Ltd. Sept. 16, 1935, No. 25683. [Class 87 (i)] A plaster board, sheet, or block consists of a layer of a calcium sulphate plaster to one or both faces of which is bonded a relatively thin sheet of fibrous board composed at least partly of asbestos fibre. The fibrous board may comprise 15 per cent. to 60 per cent. asbestos fibre and 85 per cent. to 40 per cent. organic fibrous material e.g. wood pulp or it may comprise one or more layers of asbestos material 11, 13 and 12, 14 and one or more layers of organic fibrous material 5, 7, 9 and 6, 8, 10. In a further form, a layer of organic fibrous material is bonded to each face of the base and a layer of asbestos material is attached to each of these layers by an adhesive either before or after the bonding of the fibrous layers to the base.
Patent GB-158955-A (GB)
Title: Improvements in hair wavers and curlers
IPC: A45D2/16
Filed: 1920-09-17
Abstract: 158,955. Birtchnell, L. Sept. 17, 1920. Hair-curling appliances. - A hair-curler of the kind in which an endless elastic ring is passed over the hair and between the limbs of a U- shaped base on which it is coiled comprises a U-shaped length of stout wire A, the limbs of which are preferably straight, an endless elastic ring D, and an adjustable clip member J of metal, rubber, or other material.
Patent GB-870710-A (GB)
Title: Method and apparatus for packaging liquids or powder
IPC: D06F/
Filed: 1959-07-28
Abstract: 870,710. Powder distributers. BULL, J. H. July 28, 1959 [July 28, 1958 ; July 6, 1959], No. 25919/59. Class 18. [Also in Group XXVIII] Apparatus for dispensing powders comprises a container 10 into which is inserted a flexible bag 14 containing a dry-gas generating substance such as dry ice and the powder 16. As the gas is generated the bag expands and exerts a pressure on the powder which is to be dispensed. The bag may be secured to the outlet 12 and contain the powder with the gas generating substance in the space formed between the bag and the container. The bag when expanded is preferably larger than the container.
Patent GB-651816-A (GB)
Title: Improvements in cartridge magazines for automatic cannons
IPC: F41A9/26
Filed: 1948-10-05
Abstract: 651,816. Cartridge magazines. AKTIEBOLAGET BOFORS. Oct. 5, 1948, No. 25993. [Class 92 (ii)] The speed at which a cartridge magazine rotates, to bring the cartridges into the feeding position, is regulated by a cam disc 26 rotatably mounted on the magazine shaft 3 and a member 33 which co-operates both with the disc and with a member 35 which recoils upon firing of a round. The shaft 3 in the construction shown is fitted with a spring motor, the spring 19 of which is stressed by means of a handle 14 which, through gears 12, 11, rotates a part 9 to which one end of the spring is secured. The ammunition, which is arranged alternately in deep pockets 6 and shallow pockets 7 around the magazine, rests, when in the lowermost position, against a feed-down guide and thus prevents rotation of the magazine until all the rounds in that particular pocket i.e. the lowermost pocket, have been fed to the gun. The magazine is then free to rotate until the round or rounds in the next pocket move to the feeding position, and the speed of this rotation is controlled by the cam surfaces, and movements of the cam follower, of the disc 26 which, through gearing 20, 21, rotates at double the speed of shaft 3. The cam follower 28 is mounted on an arm 29 which rotates about an axis 30, and a second cam 31 rotating about the same axis carries the member 33. A guide pin 34 on the member 33 moves in a groove of the member 35 which forms part of the charging bridge of the gun. A spring device 32 between the two arms 29, 31 normally causes the arms to move in unison but permits disengagement if the pin 28 should jam.
Patent GB-1406766-A (GB)
Title: Sensitizers for electrophotography
IPC: C09B23/10
Filed: 1973-05-31
Abstract: 1406766 Cyanine dyes FUJI PHOTO FILM CO Ltd 31 May 1973 [31 May 1972] 26127/73 Heading C4P [Also in Division C2] Dimeric cyanine dyes for sensitizing electrophotographic photoconductors are of formula (in which R<SP>1</SP> is H, 1-5 C alkyl, or alkyl or acyl substituted by halogen, OH or CN; R<SP>2</SP> is -(CH 2 ) n - or p-xylylene; n is 2-6; R<SP>3</SP> is H, halogen, nitro, 1-5 C alkyl, -OR<SP>5</SP> or -CO 2 R<SP>5</SP>; R<SP>5</SP> is 1-5 C alkyl; X is anion). The dyes are prepared by reacting a bis-(2-methylene indoline) or a bis-(2-methylindolium salt) with 2- formyl-carbazole.
Patent GB-807739-A (GB)
Title: Process for the production of polymers and copolymers
IPC: C08G65/26
Filed: 1956-08-27
Abstract: Unsaturated non-halogenated compounds are polymerized using as catalyst an aromatic or heterocyclic compound having an epoxy group in the a ,b -position in an aliphatic side-chain, e.g. phenyl ethylene oxide optionally together with phenyl glycidyl ether. Specified unsaturated compounds are vinyl acetate, diallyl phthalate, trially cyanurate, styrene, divinyl benzene, methyl methacrylate and unsaturated polyesters derived from maleic anhydride or fumaric acid, phthalic anhydride, or adipic acid, and ethylene glycol, diethylene glycol, polyethylene glycol of molecular weight 400, 1,3-propylene glycol or 1,3-butylene glycol. Polymerization may be effected under pressure.  After gelling, hardening may be accelerated by raising the temperature.  Driers, e.g. cobalt, lead and manganese naphthenates and cobalt octoate are preferably added when the polymerization is effected in the presence of air.
Patent GB-283452-A (GB)
Title: Improvements in or relating to swings and like oscillating bodies
IPC: A63G9/12
Filed: 1927-10-04
Abstract: 283,452. Wicksteed, R., and Wicksteed & Co. (1920), Ltd., C. Oct. 4, 1927. See-saws; swings.-A device for limiting the oscillation of see-saws, swings &c. comprises a friction-plate 15 secured to the supporting frame and a second plate 22 secured to the moving part, each plate being provided with face cams 17, 19 and 24, 25 to engage one another when the oscillation reaches a predetermined amplitude. One or more springs 30, 33 which may be adjusted by screws 36, prees one plate towards the other, but a tube 26 interposed between the plates normally keeps them apart. Gradual application of the braking force is provided by making the cam surfaces helical. The friction surfaces may be detachable
Patent GB-408998-A (GB)
Title: Improvements in or relating to electrical musical instruments
IPC: G10H3/18
Filed: 1932-09-21
Abstract: 408,998. Electrical musical instruments. JACKSON, L. MELLERSH-, 28, Southampton Buildings, Chancery Lane, London.-(Vierling, O. ; 7, Kloedenstrasse, Berlin.) Sept. 21, 1932, No. 26276. [Class 88 (ii).] In a musical instrument wherein the vibrations of tuned bodies which are fixed at least at one end, e.g. strings, are electrostatically translated into electric oscillations operating a loud-speaker or the like, the electrostatic strip, e.g. 76, Fig. 1, which forms a capacity with the strings is made so narrow as to pick up oscillations from substantially only a point on each string, and crosses the strings in a regular manner. A strip 76 may divide all the strings in the same ratio (Fig. 2, not shown) or may run parallel to one end of the strings (Fig. 3, not shown). Means are described for mingling in various proportions and in the same or opposite phases, vibrations taken by a number of strips 76 ... 80 placed at different points along, and above or below, the strings (the vibrations at the different points containing different proportions of harmonics) so as to obtain any desired timbre. Strips 76, 77, 78 are connected respectively to valves 84, 85, 86 and by means of switches 81, 82, 83, may be associated with or substituted by strips 79, 80 on the other side of the strings. The combined outputs of these valves are amplified at 103, 104 and delivered to loud-speaker 105, being mixed in the desired proportion and phase by closure of selected switches of banks 98, 99, 100 connected on either side of the centres of tapped resistors 95, 96, 97, the centres of which are connected as shown. For instance, combination of the strips 76, 80 alone with similar amplitudes and aiding phase of the fundamental produces vibrations without the even partials. If the fundamental phases are opposed, the octave is produced. The switches may be operated by tablets like the stop-keys of organs. A tone-control device, comprising an inductance 109 and capacity 110, with potentiometer 111, may be used with amplifier 103 to attenuate the lower partials of bass tones, or the higher partials of treble tones as desired. Similar frequency-discriminators 108<1> may be used with the valves 84, 85, 86, producing further tonal effects. Electrostatic shielding 106 may be provided.
Patent GB-1275285-A (GB)
Title: An automatic multi-station lathe for machining tubes
IPC: B23B31/117
Filed: 1969-05-23
Abstract: 1275285 Lathes; mandrels POLYTYPE AG 23 May 1969 [24 May 1968] 26408/69 Headings B3B and B3T In an automatic lathe for machining tubular members means for supporting a plurality of the tubular members 2 comprises a plurality of rotary arbors 1, each of which is located concentrically with clearance with a respective ring member 10 carried by an indexable turret plate 5, the arbor having a plurality of angularly spaced circumferential slots 3 in which are located rollers 4 which extend parallel to the axis of the arbor. In use, the tubular members are located over their respective arbors and are each clamped thereon by the wedging action of the rollers, due to rotation of the arbor, which act on the inner periphery of the member. The ring member prevents deformation of the members during clamping. Each arbor has an axial bore 13 and an outlet 15 for the passage of compressed air which ejects the finished member from the arbor.
Patent GB-518945-A (GB)
Title: Improvements in or relating to high frequency inductance coils
IPC: H01F17/04
Filed: 1938-09-09
Abstract: 518,945. Tranformers; inductances. POLYDOROFF; W. J. Sept. 9, 1938, No. 26423. [Class 38 (ii)] A high frequency inductance coil or transformer for high voltage heavy current work as in wireless transmitters is provided with a magnetic dust core 3 which is divided into sections by insulating spacers 5. The outer surface of the core may be grooved and the turns of the winding may be arranged in the grooves. The cores or parts thereof may be adjustable and/or the winding may be tapped for regulation. The winding or windings may be in the form of pancake coils 1, Fig. 5, supported by radial members 12 and having an adjustable contact 11. Specification 366,475 is referred to.
Patent GB-1434839-A (GB)
Title: Aerosol can
IPC: B21D19/00
Filed: 1973-06-04
Abstract: 1434839 Making aerosol containers CEBAL 4 June 1973 [5 June 1972] 26464/73 Headings B3Q B3J and B3A [Also in Division B8] A rolled-edged valve-receiving opening of an aerosol can is formed by outwardly turning the trimmed edge of an upstanding can neck using a shouldered spigot (7) to produce a flat collar (5), Figs. 1 to 3 (not shown), deflecting the collar downwardly to frustoconical form using a conically-recessed punch (13) having a centering spigot (12), Figs. 4 and 5 (not shown), and finally rolling the collar up in the remaining portion of  the neck. The width of the collar is greater than the radius of the roll 22 and the construction is said to inhibit unrolling of the edge due to internal gas pressure. The tool for rolling the collar up in the remaining neck portion comprises a holder 15, which carries a spring- loaded centering annulus 19, and central part 16 configured to form the rolled bead enclosing the collar.
Patent GB-1188405-A (GB)
Title: Clutches
Inventor: DARBYSHIRE LESLIE
IPC: F16D27/105
Filed: 1967-06-08
Abstract: 1,188,405. Clutches. SPERRY RAND Ltd. 20 May, 1968 [8 June, 1967], No. 28487/67. Heading F2C. A clutch comprises a drive-transmitting synthetic plastics coiled spring member 15, Fig. 2, having one end connected to a rotary member 20 with which it rotates freely until the rotary member is braked whereby the spring is resiliently deformed to engage frictionally another drive transmitting member 14 and transmit drive thereto. When solenoid 21 is automatically or manually energized an armature 20, faced with a P.T.F.E. coating, is attracted towards the coil and thereby braked. The inner surface of spring 15, e.g. of nylon grips drum 14, e.g. of nylon or aluminium. The drive is transmitted from a gear 16, which may be integral with the spring 15, through spring 15 and drum 14 to the output shaft 12. Two clutches are arranged with their output members geared together to a common output so that when one clutch is operative the output is in one rotational direction and the output is in the other rotational direction when the other clutch is operative. The output shaft may be arranged to drive a control surface, e.g. a rudder or fin, in the sense to correct the orror and the signal from a potentiometer 29 used as a feedback to set against the error. Three pairs of clutches may be used so that each pair controls one of three sets of control surfaces.
Patent GB-1317611-A (GB)
Title: Copying machines
IPC: G03B27/62
Filed: 1970-06-02
Abstract: 1317611 Casting layered plates RICOH K K 2 June 1970 [10 June 1969 (3)] 26538/70 Heading B5A [Also in Division G2] A cover-plate for placing over an original in an electro-photographic copier is made by pouring first and second layers 43a, 43b of rubber or resin into a mould 41 having a rim 41b which prevents the first layer 43a spreading to the surface of the second layer 43b. Preferably layer 43a is a white and light reflective for contacting the original and layer 43b is coloured. Stub shafts (9, 10, Fig. 10, not shown), may be embedded in or moulded integrally with the plate for hinging it to the copier. A metal sheet (13, Fig. 8, not shown), may be embedded in the plate during moulding and then bent to form a handle (8a).
Patent GB-1327357-A (GB)
Title: Electronic antiskid braking system
IPC: B60T8/66
Filed: 1972-06-07
Abstract: 1327357 Antiskid braking systems SOC ANON DBA 7 June 1972 [18 June 1971] 26591/72 Heading F2F An electronically controlled antiskid braking system including a wheel speed sensor producing a voltage signal has a diode 10 connected to the sensor and to a capacitor 16 of which one terminal is grounded, resistors 12, 14 connected in series between ground and a common connection of the diode and capacitor, a direct voltage source 20 connected to ground and through another resistor 18 to the common connection of resistors 12, 14 and a differential amplifier A.D. of which the inputs are connected to the sensor output and the common connection of the diode and capacitor and the output of which provides a signal to brake pressure controlling means M.
Patent GB-236794-A (GB)
Title: Machines for making sand moulds
IPC: B22C15/20
Filed: 1924-11-07
Abstract: 236,794. Beardsley, E. O., and Piper, W. T. Nov. 7, 1924. Moulding-machines; treating mould materials. -Machines for filling flasks are adapted to travel over the foundrv floor from which sand is raised and delivered to the flasks which are carried by a rotatable table. The sand is broken up and collected by blades 39, and a screw 38, raised by an elevator 40, falls through a sieve 49 and is delivered by a belt 48 and projector 30. The belt and projector are driven by a motor 36 and are supported by a pivoted arm so that they can be moved by hand to fill all parts of the flask. The screw 38, the elevator 40 and the wheels 15 for traversing the machine are driven by a motor 19 through reducing gear 22 and crank-operated pawl 27 and ratchet 27<a>. Empty flasks are placed on plates 51 of the table 50 which is rotated to bring a flask below the projector, the table being arrested in the correct position by a band brake 62 operated by pins 68.
Patent GB-138578-A (GB)
Title: Improvements in tread grips for the wheels of motor or tractor vehicles
IPC: B60B15/00
Filed: 1919-10-30
Abstract: 138,578. Puech, J. Oct. 30, 1919. Tyres, non-elastic.-Tread grips for wheels of motor-vehicles consist of Z-shaped members, arranged in proximity to each other, and disposed with the intermediate part inclined across the tread, and the end parts 6, 7 circumferential and oppositely directed. The intermediate part of the grip is formed with two sides meeting on a relatively sharp edge 1, and the end parts 6, 7 are solid. The grip members are riveted to a rim formed in two parts detachably secured to the felloe by bolts, the ends of the parts being bevelled and secured together.