baber/WOPTO huggingface dataset:
Patent GB-453667-A (GB)
Title: Improvements in air sealing devices for travelling grates
IPC: F23H11/10
Filed: 1935-07-17
Abstract: 453,667. Sealing devices for grates. PARKER, A. E., Babcock House, Farringdon Street, London. July 17, 1935, No. 20406. [Class 51 (i)] A floating air sealing device for travelling grates consists of a plate 1 contacting with the return run 2 of the grate and connected by a flexible plate 4 with a fixed part 3 of the grate. The flexible plate 4 which may be of asbestos, soft copper or other material is secured to the plate 1 by set screws 5 and to the fixed part 3 by bolts 6. When of metal the plate may be corrugated and provided with flanges 4<a>. The plate 1 and flexible plate 4 may be in one piece extending across the width of the grate or they may be sectional.
Patent GB-583355-A (GB)
Title: Improvements relating to the construction of show cases, cabinets, and the like
IPC: A47B47/00
Filed: 1944-10-21
Abstract: 583,355. Angle pieces; counters; show cases. EDMONDS & CO., Ltd., A., and ATHERLEY, A. H. Oct. 21, 1944, No. 20428. [Class 52 (ii)] [Also in Group XVIII] A standard unit for the panel-supporting framework of a showcase or the like comprises a corner strip member, 1, bent or moulded to afford a cross-section showing two diagonally opposed beads 4, 5 each presenting a right angle at the point of connection to the other so as to leave a right-angled recess between the beads on each side of the diagonal axis. The glass panels have their edges bound with glazing tape 8, rest upon a packing strip 11 and are clamped in metal channel frames 9, 10 which enclose a wooden fillet 11 and are secured together in overlapping relation by wood screws 12 and are seated upon a rubber or other bedding strip 16. Fig. 1 shows the panels 2 mounted and secured by bolts 14, in the right-angled recesses on either side of the central webs 3 of the strip member 1. The adjacent ends of the vertical and horizontal corner strips are adapted to be interconnected at the corners of the showcase by a three-limbed connecting piece 6 shown in Fig. 3. A groove 7 may be cut in each limb of the member 6 to form a snap action grip with the flanged ends of the the bead 4. In modifications the beads 4, 5 may be similar right-angled figures which may be solid. In further modifications the glass panels may be unframed and secured directly in the corner strip angles by off-set headed damping bolts engaged in notches or slots in the edges of the glass..
Patent GB-358484-A (GB)
Title: Improvements in the production of fuels for internal combustion engines
IPC: C10L1/22
Filed: 1930-07-05
Abstract: Motor spirit is obtained by emulsifying an explosive such as nitroglycerine, nitro-guanidine, nitrocellulose, trinitrophenol or trinitrotoluene in vegetable oil, and dissolving the emulsion in an alcohol or other solvent or solvents which is or some of which are fuels.  The explosive may first be dissolved in alcohol, acetone, acetic acid, or other solvent, the solution emulsified with the vegetable oil, and this solvent removed before solution of the emulsion in the fuel.  Nitrobenzene, acetone, ether or other suitable substance may be added.  Vegetable oils specified are castor, cottonseed, linseed, soya-bean, peanut, rice, grain, poppy, olive, hemp, colza, tomato seed, raisin seed, sesame and walnut oils.  In an example, a solution of 100 kg. of nitro-guanidine in 300 kg. of commercially pure acetone is emulsified with 100 kg. of castor oil, and the acetone is removed by evaporation.  8 lb. of the resulting emulsion, 70 lb. of petrol, 10 lb. of ethyl alcohol, 10 lb. of acetone, and 2 lb. of ether are then mixed to form the fuel.
Patent GB-912414-A (GB)
Title: Improvements in or relating to apparatus employing electronic valve devices
Inventor: BAKER DENNIS ERNEST
IPC: H03F1/54
Filed: 1960-06-10
Abstract: 912,414. Valve supply circuits. COMMUNICATIONS PATENTS Ltd. May 31, 1961 [June 10, 1960], No. 20526/60. Class 40 (6). The anode of a magnetron 22 is fed via rectifier 19 from the secondary of a transformer 10 and its cathode heater 26 from the secondary of a transformer 23. A third transformer 13 has one secondary winding 15 connected in series aiding with the secondary of transformer 10 and a second secondary winding 16 connected in series opposition with the secondary of transformer 23. The primary of transformer 13 is fed from the slider of a variable auto-transformer 27 which is connected, in parallel to the primary of transformer 10 to the contacts of contactor 29. The primary of transformer 24 is connected, via series resistor 34, and in parallel to the input terminals of contactor 29 to the main control switch 30. Also connected to this switch is the coil 31 of a thermal delay switch having contacts 33 which connect coil 32 of contactor 29 into circuit and contacts 35 which short-circuit the resistor 34. Upon closure of the switch 30 and with the slider of auto-transformer 27 at minimum, the heater of the magnetron 22 is energized, resistor 34 limiting the heater current. After a time determined by thermal delay switch 31, this switch operates to close contacts 33, 35, thereby short-circuiting resistor 34 and applying full heater volts to the valve heater, and also energizing contactor 32 whereby its contacts are closed and anode volts are applied to the anode of the magnetron. As the slider of auto-transformer 27 is moved up, the anode voltage of the magnetron is increased but, due to the inverse connection of the winding 16 the heater voltage is decreased, thereby compensating for the additional heating effect produced by increased bombardment of the cathode. A further pair of contacts on the contactor 29 is utilized to short-circuit the primary of transformer 14 when the main contacts of the contactor are open, thereby preventing energization of the transformer 10 via the auto-transformer 27 and transformer 13, through the secondary 16 of which the heater current of the magnetron passes.
Patent GB-1376057-A (GB)
Title: Steplessly variable friction transmission gears
IPC: F16H15/28
Filed: 1973-08-01
Abstract: 1376057 Variable-speed gear ALLSPEEDS Ltd 1 Aug 1973 [3 May 1972] 20581/72 Heading F2D In a steplessly variable gear wherein flanges 12, 13 on aligned shafts 10, 11 are frictionally connected by three, six or other number of balls 16, 17 rotating about stationary axes which can be tilted to vary the ratio, at least one of the balls 16 is a control ball rotatable on a spindle 18, which can be tilted by a radially slidable rod 19, while at least one other 17 (two shown) of the balls is freely mounted. The inclination of the axis of rotation of the free ball 17 follows that of the control ball 16 so that all balls share the load. Two freely mounted balls 17 are carried in apertures in a fixed disc 27 which has a V-shaped aperture for the control ball 16, and guides for the control rod 19 and its ball-socket connection 21. Low friction material may be provided at the support surfaces of the balls and control rod, or the balls 16, 17 may be supported by additional balls. Traction pressure is provided by outer races 23, 24, backed by ball, roller or needle bearings, and loaded axially by coil or diaphragm springs 25, 26, hydraulically or pneumatically. The control rod 19 may be screw adjustable and operated by a handle or through a sprocket drive.
Patent GB-224307-A (GB)
Title: Improvements in, or connected with, piston-rings and the like
IPC: F16J9/06
Filed: 1923-08-13
Abstract: 224,307. Scott, W. R. Aug. 13, 1923. Wire springs. - A coiled spring for expanding piston and like rings has inclined convolutions spaced apart, as shown in Fig. 3. Specifications 756/78, 228/80, both in [Class 122. Steam engines], and 215,969 are referred to.
Patent GB-623196-A (GB)
Title: Improvements in and relating to solvent extraction devices
IPC: A47J31/06
Filed: 1946-07-11
Abstract: 623,196. Infusers. WALLER, W. M., and WALLER, P. H. July 11, 1946, No. 20711. [Class 129] In an infuser, a measure 1 is part of the foraminous walled infusion chamber 11 which is of such proportions that a charge of material to fill the measure can swell freely during the preparation of the infusion, and the measure is adjustable so that an increase in its size simultaneously increases the size of the chamber. The measure floor 3 slides within the walls 2 of the measure and the latter slides within the walls 10 of the extraction chamber. A pin and slot connection 20, 21 allows the measure to be detached from the extraction chamber. Screw threads on the rods 15, 7 may be multi-start and are of opposite pitch. The pitch of the thread on the rod 15 is larger than that on the rod 7 and their ratio may be three to one. A telescopic handle or a handle integral with the chamber may be provided. An internal or external lining of cloth or gauze may cover the chamber wall or the measure floor, or both.
Patent GB-872211-A (GB)
Title: Improvements in or relating to pressure exchangers
Inventor: VICKERY JOHN PERCY
IPC: F04F13/00
Filed: 1958-06-27
Abstract: 872,211. Pressure exchangers. POWER JETS (RESEARCH & DEVELOPMENT) Ltd. June 23, 1959 [June 27, 1958], No. 20745/58. Class 8(1). A pressure exchanger having a rotating ring of cells 2 has a duct or ducts 21, 21A extending within the stationary structure 6, 8 and integral with the part 6 thereof. The ducts communicate with passages in the end plates, and are used to convey fluid in the exchange cycle. In a further embodiment an annular duct between the parts 6, 8 houses a combustion chamber feeding into the exchanger. Specification 722,609 is referred to.
Patent GB-860371-A (GB)
Title: Di-sulfonamides and compositions containing them
Filed: 1959-06-17
Abstract: The invention comprises disulphonamides of the formula <FORM:0860371/IV (b)/1> and alkali metal salts thereof, wherein X is bromine or chlorine and R is methyl, ethyl, n-propyl or isopropyl, and their preparation by the action of ammonia on the corresponding 5 - chloro- or bromo - 1 - alkylbenzene - 2:4 - disulphonylchloride (obtainable by the action of chlorosulphonic acid on the corresponding m-halo-alkylbenzene), followed by conversion to the alkali metal salts, if desired.ALSO:Pharmaceutical compositions comprise 5-halo-1-alkylbenzene - 2 : 4 - disulphonamides of the formula <FORM:0860371/VI/1> wherein X is chloro or bromo and R is alkyl group of 1-3 carbon atoms and a pharmaceutical carrier.  The products may be administered orally, for example as tablets, troches or lozenges containing conventional excipients or they may be administered parenterally, for example in the form of their alkali-metal salts in a sterile, isotonic solution.  Examples describe tablets containing 5-chlorotoluene-2 : 4-disulphonamide, and aqueous isotonic solutions of alkali-metal salts of 5-chlorotoluene-2 : 4-disulphonamide.
Patent GB-384612-A (GB)
Title: Improvements in microscopes with inclined viewing direction
IPC: G02B21/24
Filed: 1932-07-23
Abstract: 384,612. Microscopes. ZEISS, C. [Firm of], Carl Zeiss Strasse, Jena, Germany. July 23, 1932, No. 20785. Convention date, July 25, 1931. [Class 97 (i).] In a microscope with inclined viewing direction, in which the parts used for observation and the stage can be adjusted coarsely and finely relatively to each other, separate linear guides being provided for the said adjustments, the two guides and the adjusting mechanisms are below the plane of the stage, and the coarse adjustment is applied to the bracket supporting the observation parts. The fine adjustment may also be applied to the said bracket or it may be applied to the stage, the latter arrangement being shown in the Figure. The bracket e carrying the ocular m and objective o is formed with a slide k bearing in a guide h formed on the stand b, and is displaceable for coarse adjustment by means of a knob i. The support f for the stage p .is also formed with a slide g bearing in a guide c formed on the stand, and is displaceable for fine adjustment by a knob d. The support s for the illumination parts and the mirror t are carried by a slide r which is vertically adjustable relatively to the stage. The observation parts may be carried by a support l which is detachably connected to the bracket e by a screw u.
Patent GB-428002-A (GB)
Title: Improvements in vacuum cleaner nozzles
IPC: A47L9/06
Filed: 1934-07-16
Abstract: 428,002. Vacuum cleaners. ELECTROLUX, Ltd., Luton.-(Assignees of Inventia Patent - Verwertungs-Ges. ; 10, Herrenacker, Schaffhausen, Switzerland) July 16, 1934, No. 20803. Convention date, July 18, 1933. [Class 8 (i)] A suction nozzle for vacuum cleaners comprises a connecting pipe 15 flattened out to form a head 18 which is provided with a peripheral suction opening 22 and rows of bristles 23 arranged on each side of, and coextensive with, the said suction opening. The bristles are preferably inclined outwardly to diverge from the suction opening and clamped between lips 17, 21. Additional suction openings 25 may be provided on the flattened faces of the head 18.
Patent GB-148959-A (GB)
Title: Improvements in railway signalling apparatus
Inventor: JOSEPH BETHENOD
IPC: B61L3/08
Filed: 1920-07-10
Abstract: 148,959. Bethenod, J. May. 3, 1919, [Convention date]. Track apparatus actuating signals on trains. - A number of signals on a train are actuated by means of a single shoe by use of a generator of alternating currents of different frequencies on the locomotive, resonant circuits connected to the ramp being arranged to complete or interrupt the circuits through the signalling devices. The diagram shows two signal repeaters 4, 5 in parallel closed circuits from the generator 3 on the locomotive. One or other of the resonant shunt circuits 10, 11 may be connected to the ramp 7 and shunts current from one of the devices 4, 5. Alternatively the repeaters 4, 5 may be connected between the generator and the shoe 2, or.e of them being energized as the ramp is passed according to the value of the inductance 10, 11, in circuit. The generator may be on the track and energy may be transmitted between train and track by electro-magnetic induction. The Specification as open to inspection under Sect. 91 (3) (a) comprises several modified arrangements of apparatus, Fig. 4 (Cancelled), shows three generators 3<1>, 3<11>, 3<111> delivering current of different frequencies to three indicators 4<1> 4<11>, 4<111> which are shunted by resonance plugs 5<1>, 5<11>, 5<111> comprising a capacity and a reactance in series. Alternatively, the indicators may be arranged in parallel and have resonance plugs, comprising capacity and inductance in parallel,. in series with each one. A switch 8 controlled by the track signal is arranged to put in circuit one of the circuits 10<1>, 10<11>, 10<111> each tuned to pass current of only one of the frequencies. This subject-matter does not appear in the Specification as accepted.
Patent GB-597310-A (GB)
Title: Improvements in and relating to means for controlling the supply of current pulses from an alternating current source
IPC: B23K11/24
Filed: 1945-08-14
Abstract: 597,310. Control systems for resistance welding &c. BRITISH THOMSONHOUSTON CO., Ltd. Aug. 14, 1945, No. 20843. Convention date, Aug. 21, 1944. [Class 38 (iv)] Thermionic control.-A single pulse of current or a succession of pulses at accurately spaced intervals may be obtained from an A.C. source by means of a gas-filled valve 3, the grid circuit of which contains a transformer winding 9, furnishing a hold off voltage and a condenser 17 which is charged by grid current due to a winding 12, when the valve has been made conducting, to render ineffective the peaking impulses imparted with a resistance 18 to cause the valve to conduct. Thus the valve cannot pass a second pulse until the condenser 17 has sufficiently discharged through resistances 15, 16. When the switch 22 is held closed on contact 21 a single pulse, or a succession of pulses will occur according to the length of this discharging period, each pulse at one instant in the A.C. cycle determined by a phase shifter 24. To reset the apparatus, contact 26 provides for rapid discharge of the condenser.
Patent GB-127507-A (GB)
Title: Improvements in or relating to Combined Cooking Stoves and Water Heating Boilers.
Inventor: LINDERS OLOF
IPC: F24C13/00
Filed: 1918-12-14
Abstract: 127,507. Linders, O. Dec, 14. 1918. Cooking-stoves.-A combined cooking-range and water-heater is heated by a fire-box c, from which the gases pass over the oven o and through flues p, r to a damper box m, and thence through a flue k to a chimney; alternatively, when the flue p is closed by the damper t, the gases pass through a partitioned flue i to the damper box m, and thence to the chimney through the flue k. The mouth of the flue i is funnel-shaped. The boiler and stove are connected by a water-cooled flange - or projective f inserted into the frame e; the joint is then cemented.
Patent GB-801318-A (GB)
Title: Improvements in or relating to the manufacture of toffee
IPC: A23G3/02
Filed: 1955-07-19
Abstract: 801,318. Extruding toffee. CAMERON, A., and HORNER & CO., Ltd., G. W. Oct. 4, 1956 [July 19, 1955], No. 20915/55. Class 87(2). A method of manufacturing toffee comprises forcing the toffee, after cooking and whilst still in a liquid condition, through a cooled tube to impart to it a desired cross-sectional shape, and feeding the extruded toffee to cutting and wrapping machines. Toffee at a temperature of 170‹F is forced by a pump a through a tube b surrounded by a cooling jacket c and emerges from the tube b at a temperature of 130‹F on to a tray d from which is is fed to cutting and wrapping machines. The tube b may be of metal, e.g. copper, and the temperatures may vary for various recipes of toffee mixture.
Patent GB-478876-A (GB)
Title: Improvements in endless track chains or bands for vehicles
IPC: B62D55/275
Filed: 1937-07-28
Abstract: 478,876. Endless tracks for vehicles. ZAVODY TATRA AKCIOVA SPOLECNOST PRO STAVBU AUTOMOBILU A ZELEZNICNICH VOZU. July 28, 1937, No. 20943. Convention date, Aug. 19, 1936. Addition to 478,866. [Class 79 (i)] In a track having rubber or like tread blocks 5 and openings 6 in the links or track band as claimed in the parent Specification, the rubber blocks are provided only in the centre of the track. As described in the parent Specification, the rubber blocks constitute a small part only, say 1/20 to 1/24 of the total track area, so that the load per unit area on the rubber on a hard road may be approximately the same as on pneumatic-tyred wheels. In the construction shown the track comprises links 1 connected together by hinge pins 4.
Patent GB-1102231-A (GB)
Title: Electrically controlled lens shutter
IPC: G03B7/083
Filed: 1965-05-18
Abstract: 1,102,231. Photographic shutter. P. GOSSEN & CO. G.m.b.H. April 18, 1965 [Sept. 2, 1964], No. 20984/65. Heading G2A. An electrically operated photographic shutter which may also act as a diaphragm comprises a plurality of shutter blades 21 mounted on spring- biased opening and closing rings 1 and 2; on moving a slide 5 a switch 6 in a trigger circuit is closed, and simultaneously rings 1 and 2 are released whereby they rotate together until closing ring 2 is arrested by its lug 2a engaging an arm 13a of a lever 13 held by an electromagnet 16 having a coil 17; ring 1 continues rotating, thus opening the shutter blades until lug 1a thereon is arrested by a pin 8; after a time governed by the trigger circuit, the electromagnet 16 is deenergized whereby lug 2a is released, and closing ring 2 closes the shutter blades to terminate the exposure. The time taken for the threshold charge to be built up in a capacitor 27 in the trigger circuit, and hence the exposure time, is either determined automatically by a photoresistor 25, or preselected by connecting one of a set of resistances 29 to 33 into the circuit in place of the photo-cell. To prevent overexposure when the required exposure is below the range of the shutter, a switch 11 in the trigger circuit is opened temporarily by cam 1b, and if the threshold charge is built up in the circuit during this time lever 13 is released from the electromagnet 16 so that lug 2a is not arrested by the arm 13a and hence the shutter blades 21 do not open. The aperture defined by the shutter blades may be reduced by turning clockwise a plate 15 on which are mounted switch 14, locking lever 13 and electromagnet 16; the closing ring 1 is then arrested in a position in which the shutter blades 21 are unable to open fully. If a switch (35) is actuated Fig. 3 (not shown) a flash M-contact 7 is connected into the flash circuit on movement of slide 5, and a delay mechanism having a movable arm 10 engages a system of teeth 9 on a ring 1, and a flash X-contact 12 is closed by a lug 2b on ring 2 shortly before the shutter blades form the maximum aperture.
Patent GB-1182673-A (GB)
Title: Improvements in or relating to foot attachments for sewing machines
Inventor: HOWELL ROBERT BROWN
IPC: D05B3/18
Filed: 1967-07-04
Abstract: 1,182,673. Sewing machines. R. B. HOWELL. 4 July, 1967, No. 21005/69. Divided out of 1182672. Heading D1G. To facilitate the sewing of zipper tapes to material, a presser foot 18 has a longitudinal bottom groove 36, a downwardly-projecting member 42 dividing the leading end of groove 36 into two channels 38, 40 and a needle-passing aperture 44 extending through the foot midway between said channels, member 42 being disposed forwardly of aperture 44. Foot 18 is formed with an upper T-shaped transverse bar 26 adjustably attachable to a shank (20) as described in Specification 1182672. Foot 18 may thereby be moved laterally to align the needle with aperture 44 for sewing on a concealed zipper tape, or with either one of grooves 32, 34, formed in the respective sides of foot 18, for sewing on an exposed zipper tape.
Patent GB-760924-A (GB)
Title: Improvements in or relating to dentures
IPC: A61C13/00
Filed: 1953-07-29
Abstract: 760,924. Artificial teeth. VONCK, J. B. C. July 29, 1953 [Aug. 8, 1952], No. 21083/53. Class 81 (2) In artificial dentures the greater part of the occlusal surfaces of the molars and premolars lie on the surface of an imaginary sphere, the centre of which is above the occlusal plane and, in addition, the upper teeth have a, lingual cusp and the lower teeth have a buccal ridge. In the form described the main part of the occlusal surface h of the lower molars lies on the sphere indicated by the lower circular line and, in the rest position of the dentures, this coincides with the sphere on which lie the lowermost surfaces of the projecting cusps e on the upper molars. The lower molars also have ridges g which extend along the buccal and distal edges of each tooth.
Patent GB-756263-A (GB)
Title: Improvements in or relating to valve mechanism for internal combustion engines
IPC: F01L1/22
Filed: 1954-07-20
Abstract: 756,263. Valve gear. EATON MANUFACTURING CO. July 20, 1954 [Jan. 20, 1954], No. 21118/54. Class 7(6) In a clearance adjusting device comprising a push rod 22 with screw and nut members 35, 34, biased apart by a torsion spring 41, the screw member 35 is screwed into the nut member on each downstroke by a clutch 46 comprising a coil spring surrounding the member 35 and anchored at one end in the push rod member 33. The nut 34 has a spherical recess engaging an adjustable screw 26 and the screw 35 has: its lower end 37 fitting in the hollow push rod 33, the lower end of the clutch coil 46 being bent at 48 Fig. 5, and engaged in a hole 48 in the rod 33 so that its end engages a groove in the part 37 to prevent axial movement of the member 37 relative to the rod 33. The other end 54 of the coil engages a stationary cam slot 53, Fig. 4, so that on each downstroke the coil 46 is tightened on the screw 35 and rotates the screw into the nut to shorten the push rod. When the valve seats and the valve spring load is taken off the push rod. the screw and nut members are moved apart by the spring 41 to take up clearance. On the succeeding upstroke the clutch coil 46 is slackened and does not cause backward rotation of the screw 35, the coil 46 thereby causing continuous intermittent rotation of the screw 35 in one direction only.