baber/WOPTO huggingface dataset:
Patent GB-637199-A (GB)
Title: Improvements in or relating to pumps, compressors and other reciprocating engines applicable to aircraft and other purposes
IPC: F04B39/00
Filed: 1947-07-18
Abstract: 637,199. Crossheads. MOREILLON, A. E. July 18, 1947, No. 19212. [Class 122(i)] In a single-acting reciprocating engine the piston 4 is connected to the crosshead 3 through a part spherical member 18 rotatably housed in a socket 14 associated with the crosshead and is laterally displaceable with respect to the member 18. The piston and member 18 are urged together by a spring 25 compressed between a recess 21 in the member and the head 24 of a pin 22 connecting the piston and member and having clearance in the latter. In an alternative arrangement the socket 14 is formed partly in the crosshead 3 and partly in a plate secured to the crosshead. Specifications 637,194, [Group XXVIII], 637,195 and 637,196 are referred to.
Patent GB-1016938-A (GB)
Title: Improved equalization circuit
IPC: G11B20/06
Filed: 1964-05-08
Abstract: 1,016,938. Local circuits for video playback heads. AMPEX CORPORATION. May 8, 1964 [July 24, 1963], No. 19241/64. Heading G5R. [Also in Division H3] The frequency response of a frequency modulated signal, e.g. a video signal, played back from a magnetic tape is corrected to a straight line amplitude/frequency characteristic with a maximum at the lower sideband limit and a minimum at the upper sideband limit, Fig. 5, shows an emphasis circuit similar to an aperture corrector employed in television circuits and designed to have an amplitude/frequency response with a maximum slightly above carrier frequency, Fig. 3 (not shown). The input is applied to an emitter follower 24 connected to a delay line 28 of which one end is connected to an amplifier 30 and the other end to an amplifier 32. The voltage at the output end of the line is constant with frequency whereas the voltage at the input varies co-sinusoidally because of the reflected signal. The amplifiers 30 and 32 are coupledto a differential amplifier 38 which feeds the output amplifier 42. Four playback heads may be coupled through amplifiers to respective emphasis circuits as shown in Fig. 5, the outputs of which pass to a head switching unit 14, Fig. 4 (not shown). The output of the switching unit passes to a head resonance compensation circuit 44 as described in Specification 1,016,939 and then to a second emphasis circuit 82 and a phase corrected low pass filter 84 feeding the demodulator 86.
Patent GB-423739-A (GB)
Title: Electromagnetic regulator for dynamos
IPC: H02P9/18
Filed: 1933-07-07
Abstract: 423,739. Automatic electromagnetic regulators. BOHLI, J., 15, Dammstrasse, Solothurn, Switzerland. July 7, 1933, No. 19276. Convention date, July 11, 1932. [Class 38 (iv)] [See also Group XXXVII] Relates to an electromagnetic regulator of the type in which resilient contact strips D secured to a rigid armature plate C are successively moved away from their countercontacts G by an opening plate 4 also secured to the armature which is biassed by a spring J. The regulator is provided with an additional spring N operative only at the end of the stroke of the armature when it is nearest to the core B and when it is about to open the contacts which short circuit the largest resistance step in the field circuit of a dynamo, so as to increase the force opposing the magnetic pull on the armature, a nose M is also provided on the armature C operative at the end of the return stroke to press together the contacts which short circuit the largest resistance and which were closed at the commencement of the return stroke.
Patent GB-208997-A (GB)
Title: Improvements in or relating to bottles for gas-charged beverages
IPC: B65D39/06
Filed: 1923-07-27
Abstract: 208,997. Du Bern, J. E. July 27, 1923. Capsule closures; stoppers, internal; stoppers, spring.-To exclude dust &c. from the ball 2 and packing rings 3 of an internally-stoppered bottle, the bottle is formed with a head 1 adapted to receive a flanged cap, such as a crown cork 4 with or without a packing disc 6, the cap having sufficient resilience and rigidity to enable it to retain its shape after its removal from the bottle. In modifications, caps having resilient flanges or spring fingers replace the crown cork and a roughened surface may replace the bead 1, or a screw cap may be employed.
Patent GB-513188-A (GB)
Title: Improvements in or relating to the method of and apparatus for the forming of glass sheets
IPC: C03B15/06
Filed: 1938-06-29
Abstract: 513,188. Drawing sheet glass. AMERICAN WINDOW GLASS CO. June 29, 1938, No. 19301. Convention date, May 4. [Class 56] A method of drawing sheet glass comprises circulating a gas in contact with both faces of the rising sheet adjacent to the meniscus and in the same direction transversely of the sheet from one edge substantially to the other. The invention is shown applied to an apparatus of the Fourcault type in which a sheet is drawn upwards from a debiteuse 6, Fig. 1, and passes between main coolers 7 and auxiliary coolers 10. The pipes 8, 11 for conducting water to and from the coolers pass through plates 16, 22 which close the spaces at the ends of the drawing-chamber. The plate 16 is provided with a glass inspection window 21 while the plate 22 has an opening 26 which is closed by a shutter 27. This shutter is used to regulate the amount of air supplied to the drawing-chamber through the opening 26. Openings 28, 31 are provided for admitting air to the base of the leer 13. The opening 28 is preferably closed by a plate 29 having an inspection window while the opening 31 is provided with a shutter 34 which is used for regulating the amount of air permitted to enter the base of the leer. The air entering through the shutters 27, 34 flows across both faces of the sheet from one edge to the other. Two angle members 35 are provided to form a slot through which the sheet passes. The width of the slot may converge towards the edge of the sheet near which the air is admitted. An auxiliary cooler 52 is arranged near the edge of the sheet remote from the opening 26 if the usual edge-holding devices are not used. This cooler consists of a tube having a U- shaped section 51, Fig. 5, which extends about the edge of the sheet. Specification 513,190 is referred to.
Patent GB-1510216-A (GB)
Title: Stabilized foamed water gel explosives
IPC: C06B31/06
Filed: 1975-05-08
Abstract: 1510216 Explosive compositions CANADIAN INDUSTRIES Ltd 6 April 1976 [8 May 1975] 19381/75 Addition to 1456814 Heading CID A thickened aqueous explosive composition as claimed in the parent Specification is modified by the omission of the self-explosive sensitizer. The foaming and stabilizing surfactants are in general the same as those referred to in the parent Specification, but an additional foaming surfactant is lauryl ammonium sulphonic acid betaine. Inorganic oxygen-supplying salts, thickeners, thickener cross-linkers, fuels, and other ingredients are as specified in the Present Specification, with the addition of sulphur in one example. The composition is detonable in diameters greater than 5À1 cm. and may be packed into cartridges or pumped into boreholes.
Patent GB-732370-A (GB)
Title: Improvements in or relating to electrical systems for the transmission of speech
IPC: G10L21/00
Filed: 1952-07-31
Abstract: 732,370. Secret telephony. GENERAL ELECTRIC CO., Ltd., and BLOCH, A. Aug. 7, 1953 [July 31, 1952], No. 19413/52. Class 40 (4). In a speech-transmission system in which frequency-compression is achieved by taking samples of the speech and transmitting them at reduced speed, the frequency of sampling is adjustable. As shown (Fig. 1) a transmitting terminal comprises a plurality of devices 1 for effecting frequency-compression of an input speech signal supplied over a path 2. Each of the devices 1 comprises (Fig. 2) a continuous magnetic tape 5 on which the speech signal is recorded by means of a recording head 6. A drum 9 carrying a plurality of pick-ups 8 rotates so that the speed of each pick-up 8 is less than that of the tape 5. The pick-ups 8 thus take samples of the recorded speech and transmit them at reduced speed through a variable attenuation network or variable-gain amplifier 12 which fades each pick-up in and out in turn. The recorded speech is erased by a head 13. The various devices 1 have different sampling frequencies, and the device having the sampling frequency nearest to the fundamental frequency of the input speech at any moment is selectively brought into operation by means of filters 15, 16 and relays A, B, C ... (Fig. 1). A similar arrangement at the receiving terminal effects frequency-expansion, so that a speech signal is reproduced having approximately the same pitch as the input speech signal.
Patent GB-532872-A (GB)
Title: Process for the separation of nitric acid from organic nitro compounds
IPC: C07C201/16
Filed: 1939-07-04
Abstract: 532,872. Organic nitro-compounds. MEISSNER, J. July 4, 1939, No. 19497. Convention date, Aug. 26, 1938. [Class 2 (iii)] Organic nitro-compounds, e.g. trinitrotoluene, are freed from nitric acid and volatile impurities such as water, nitrous acid, and volatile nitrocompounds by blowing air through a mass of the fused compounds, preferably above 60‹C. Thus, an air stream at 82‹C. is passed for two hours through a mass of fused, moist nitrotoluene containing 8 per cent. nitric acid yielding a dry product free from nitric acid. The volatile products may be condensed. Specification 243,550, [Class 2 (iii)], is referred to.
Patent GB-510290-A (GB)
Title: Improvements in or relating to aircraft landing gear
IPC: B64C25/50
Filed: 1938-07-01
Abstract: 510,290. Aircraft landing - gear. FAIREY AVIATION CO., Ltd., and CHAPLIN, H. E. July 1, 1938, No. 19562. [Class 4] In an aircraft landing-gear, swivelling movement of a wheel or like-member is restrained by a dashpot, one part of which is connected to a fixed part of the aircraft and the other to a member carrying the wheel or like member, means being provided for controlling the flow of fluid from one side to the other of the piston of the dashpot so that the degree of freedom with which the wheel may swivel may be varied. As shown, a wheel 11 is carried by the inner member 12 of an oleo leg, the outer member 13 of which is splined to the member 12 and is rotatably mounted in a frame 14 carried by brackets 15 on the aircraft. Bracing struts 16, pivoted to the frame 14 and to a sleeve rotatable on the member 13, are provided to resist lateral movement of the wheel. The upper end of the member 13, Fig. 2, carries a lever 17 i pivoted to the piston-rod 18 of a dashpot, the cylinder 19 of which is pivoted at 20 to the aircraft. Flow from one side to the other of the dashpot piston 24 is through a passage 21 controlled by a valve 23 operable by the pilot. The valve is opened or closed according to whether the wheel is to be steered or swivelling movement is to be restrained. In aircraft fitted with a tricycle undercarriage and a tail wheel or skid, the nose wheel and tail wheel or skid may be controlled concurrently and may be linked together so that they are always in planes tangential to the circumference of a circle coaxial with the turning circle of the aircraft. In the latter case, only one wheel is provided with a dashpot.
Patent GB-1403112-A (GB)
Title: Pattern compositions for investment casting
IPC: C08K5/053
Filed: 1973-04-25
Abstract: 1403112 Terpene resin compositions TRW Inc 25 April 1973 [5 May 1972] 19609/73 Heading C3P [Also in Division C5] A pattern composition for producing investment casting moulds comprises 31À25 wt. per cent beta terpene resin, 12À5% paraffin wax, 12À5% microcrystalline wax 6À25% candellila wax, 12À5% fatty acid (80% stearic) and 25% pentaerythritol. This is compared with a composition in which the pentaerythritol is replaced by adipic acid.
Patent GB-147654-A (GB)
Title: Improvements in closures for glass containers for food products, bottles or the like
IPC: B65D39/00
Filed: 1920-07-08
Abstract: 147,654. Townsend, H. E. July 8, 1920. Stoppers closuring at mouth of vessel. - The mouth of a container 1, Fig. 6, has a flared portion 2 and a cylindrical portion 3. The closure 4 has a rib 6 against a shoulder 7 of which is seated a rubber or like gasket 8. The flange of the closure is flush with the container and may have a bevelled portion 13, so that, in opening, the closure may rock about a point 17. Notches 15 are provided so that air may enter if the. act of opening causes displacement between the closure and the gasket. In a modification, Fig. 2, a shoulder 10 in the mouth of the container receives the gasket, and a depending portion 13 of the closure prevents accidental displacement.
Patent GB-259166-A (GB)
Title: A process for the purification of phosphatides
IPC: C07F9/10
Filed: 1926-08-09
Abstract: 259,166. Bollmann, H. Oct. 6, 1925, [Convention date]. Butter substitutes.-Phosphates recovered from vegetable substances are purified by distillation under reduced pressure after the main mass of oil has been separated by centrifuging, and are employed in this form in the manufacture of margarine. The water accompanied by the bitter principles and other constituents influencing the taste distil over and little decomposition of the phosphatides takes place. Should the amount of water in the mixture be insufficient for complete distillation, water may be added before the distillation, or steam blown in during the distillation. In an example, phosphatides recovered from soya beans together with their acconapanying impurities, including water, are heated in a vacuum apparatus to 60‹ C. The bitter principles, free fatty acids, and other substances distil over with the steam, leaving a purified mixture of phosphatides.
Patent GB-924137-A (GB)
Title: Improvements in or relating to heat exchangers particularly for nuclear reactors
IPC: G21C15/16
Filed: 1958-06-19
Abstract: 924,137. Heating water-tube steam boilers, combined with nuclear reactors, by steam. MITCHELL ENGINEERING Ltd., H. J. COLES, and J. W. SUTHERLAND. June 15, 1959 [June 19, 1958], No. 19683/58. Classes 123 (2) and 123 (3). A steam generator which is adapted to be heated by radio-active steam produced in a boiling water nuclear reactor is formed of interconnected upper and lower casings 12, 10, so that the lower casing 10, which is lined internally with stainless steel and which receives the radio-active heating steam, can be located within a shielding wall, not shown, surrounding the reactor. A plurality of stainless steel tubes 17 with closed lower ends have their open upper ends flush with the upper face of a tube plate 14 which is sandwiched between the casings 10, 12, flanges 10c, 12c of which are secured together by a ring of studs 15 and nuts 16. The bores of the tubes 17 in this manner only communicate with the interior of the casing 12. A cylindrical baffle 18, surrounding the tubes 17, is secured concentrically within the casing 10 with its ends spaced respectively from a domed-end part 10a and the tube plate 14 by means of a ring 19. Steam from the reactor, entering an inlet pipe 20 located in the casing 10 immediately above the ring 19, rises through an annular space 21 which locates catalyst beds 22 to recombine any dissociated oxygen and hydrogen into steam. The heating steam then flows downwardly within the baffle 18 over the external surfaces of the tubes 17, condensate being passed through an outlet pipe 23. A cylindrical baffle 24, extending upwardly within and for part of the length of the casing 12 from the tube plate 14, has mounted therein, a short distance from its lower end, an upper tube plate 25. Tubes 26, open at each end, are fitted into openings in the tube plate 25 each tube 26 extending into, to adjacent the bottom of a corresponding tube 17. Feed water is fed through a pipe 30 to a well 28 within the baffle 24, the water being maintained at a level above the outlet end of the pipe 29 but below shrouded openings 33 in the upper end of the baffle 24. The water is heated and vaporized as it flows downwardly through the pipes 26 and then upwardly through the annular spaces between the pipes 26, 17. The generated steam rises and passes out of slots 40 in the lower end of the baffle 24 and into an annular space 31 between the baffle 24 and the casing 12. The steam then flows inwardly through the shrouded openings 33, which act as water separators, and through a ring 36 of swirl vanes located between an outlet pipe 35 and a funnel 37 which has a narrow condensate tube 37a leading to a point below the level of the water in the well 28. An annular steam baffle 32 secured within the casing 12 has its inner edge turned down to project into the upper end of the baffle 24.
Patent GB-308536-A (GB)
Title: Improvements in or relating to plansifter brushes
IPC: B07B1/52
Filed: 1928-07-06
Abstract: 308,536. Herrmann, Ltd., R., (Eisgruber, G.). July 6, 1928. Addition to 288,922. Sieves with compound motion. - In brushing devices for plansifters as described in the parent Specification, the brushes are made in two parts 3, Fig. 1, connected by a plate 4 and disposed on opposite sides of a closed guide rail 8, each' part running on one or more rollers 9 disposed in the centre line of the brush. In an alternative construction a bearing roller 10, Fig. 3, disposed at the balancing point of the brush runs on the guide rail. Guide rollers 7, which may be detachably mounted, may be disposed to bear on the sides of the rails 8. The rollers may be made of vulcanite, vulcanized fibre &c., and bristles may be provided on the connecting plate.
Patent GB-197995-A (GB)
Abstract: 197,995. Quentell, W. P. Jan. 23, 1922. Adding-apparatus with operating-means; differential-mechanism.-For each denomination there is a slidable arcuate plate 15 recessed above for insertion of the operator's finger and ratchettoothed below to co-operate with a stop-arm 18 adapted to control the actuating-sector 19. In order to add a number, the operator places his finger in a recess 15<a> opposite that number on an adjacent index strip and slightly moves the plate 15 downwardly. This rocks a zero-stop pawl 21 to release the stop-arm 18 loose upon the main shaft 17. Under the action of a spring 27 the arm 18 thereupon swings upwardly until a pawl 20 carried by the end of the arm meets the operator's finger and being thus swung into engagement with a ratchet tooth 15<b> holds the stoparm in set position. The actuating-sector 19 is constrained by a spring 25 to follow the stop-arm, abutment connection between the two being effected at 18<c>, and then, by operation of the shaft 17 the restoring bails 28, 29 are caused to replace the parts and actuate through the sector 19 the totalizing-counter wheel 37. Multiplying by repetition.-The restoring-bail 28, Fig. 3, is fast upon the operating-shaft 17 and normally moves the loose bail 29 through a pawl connection 33. By depressing a hand-lever 35, this connection is broken and the shaft 17 may then be operated to cause the sector 19 to actuate the counter the desired number of times without interference by the stop-arm 18, which remains in its set position. Specification 17079/14 is referred to.
Patent GB-995998-A (GB)
Title: Improvements in air raid shelters
IPC: F24F7/00
Filed: 1964-05-13
Abstract: 995,998. Air-raid shelters. E. HERTWIG. May 13, 1964, No. 19870/64. Heading E1A. An air-raid shelter 1, 2 is provided with a blast-resistant pipe 3a containing installations which require a supply of fresh air, the pipe being provided with blast deflection baffles 12 at either end, a manhole cover 5a, electric fan 9, the radiator 6 of a diesel engine and air inlet and exhaust pipes 14, 15 therefor. In a modification, the pipe is in the form of an elbow unit, see Fig. 2 (not shown).
Patent GB-896803-A (GB)
Title: Process for the manufacture of water-insoluble quinacridones free from sulphonic acid groups
IPC: C09B48/00
Filed: 1959-06-10
Abstract: Water-insoluble quinacridones free from sulphonic acid groups are made by heating a compound of the formula <FORM:0896803/IV (c)/1> where R1 is hydrogen or an aliphatic or aromatic residue, and R2 is an aryl residue in which at least one position ortho to the -NH- group is unsubstituted, in the presence of oleum, sulphuric acid of 75%-100% strength or an acid of the formula Z-SO3H where Z is chloro or alkyl or a residue of the benzene or naphthalene series, and, when a product containing a -SO3H or -SO2Cl group is formed, splitting off such a group by heating the product with a dilute mineral acid under superatmospheric pressure.  Examples are given. Specification 828,053 is referred to.
Patent GB-1409597-A (GB)
Title: Hermetic sealing process for a filled container
IPC: B65B51/32
Filed: 1973-04-26
Abstract: 1409597 Seaming non-metallic sheet material TOYO SEIKAN KAISHA Ltd 26 April 1973 [27 April 1972 (2)] 19929/73 Heading B5K [Also in Division B8] In a process of deaerating and sealing a bag or pouch, or a flanged container, having a heat sealable resin coating, under such an atmosphere that steam or other easily-condensable vapour or condensate thereof is present on the surfaces to be sealed, the sealing comprises a step of applying heat and pressure to the surfaces to be sealed and either a cooling step or a further heat sealing step at a lower temperature, the second step being at a pressure above the saturated vapour pressure of the vapour at the temperature of the resin coating in the molten or softened step. The bag or container may be formed of an aluminium or steel foil, or a plated or treated steel sheet, having a poly-olefin, polyester, or polyamide, or hot melt, heat sealable coating on the inside, and a polyamide, polyester, polycarbonate, polypropylene or cellulose ester heat resistant coating on the outside. Suitable materials and pressure and temperature ranges are listed. The container may be deaerated by evacuation, steam flashing, or by deforming the container to exclude head space air. The sealed container may be sterilized. Heat sealing bars may be used.
Patent GB-1162640-A (GB)
Title: Improvements in Toasting Appliances
Inventor: TRAUTMANN ARNO
IPC: A47J37/06
Filed: 1968-04-26
Abstract: 1,162,640. Sandwich-toasting device. A. TRAUTMANN. 26 April, 1968 [19 May, 1967], No. 19933/68. Heading A4D. A device for toasting sandwiches comprises two holders 1, 2 pivotable about a hinge 3 and each containing an electric hotplate in the surface of which is a depression 9 to receive a slice of bread and containing further depressions 11, 12, 13 arranged concentrically. In use, a sandwich is made in one holder and the other holder is then closed on top. The channel 14 prevents fat escaping from the device. The surfaces 8 have a non-stick plastics coating. Current is supplied via the socket 5 and the conductor 6. The device may be used as an open grill as shown, in which case it is supported on a level surface by a knob 15 and legs 21.