baber/WOPTO huggingface dataset:
Patent GB-489658-A (GB)
Title: Improvements in film magazines for cinematograph cameras
IPC: G03B17/26
Filed: 1937-01-30
Abstract: 489,658. Kinematograph cameras. SIEMENS & HALSKE AKT.-GES. Jan. 30, 1937, No. 2838. Convention date, Jan. 30, 1936. [Class 97 (i)] Film magazines comprise as an integral unit a casing divided by a partition into two separate compartments each holding a film, and are reversible so that the films may be alternatively used ; the exposure openings of the magazine may be in the same or opposite edges thereof, and may be fitted with a common film-protecting slide or with separate slides ; the slides may control locking means for the film-carrying spools, and these spools may be driven by the take-up spools. As shown, the magazine body 1 is provided with a partition 2 and with lateral covers 3, 4 to form compartments each containing a film-carrying core 10 and a takeup spool core 8. The cores 10 are mounted on pins on pivoted arms 12 which permit the films on these cores to engage the cores 8 so that they are driven thereby. The cores 8 are cup - shaped, engage over flanged openings 9, have projections 9a to engage projections 9c on a driving pin 9d of the camera &c., and have centring projections 9b ; the projections 9b may be such as to connect the cores to the partition 2. The exposure openings are adjacent one another in one edge of the magazine, and lateral recesses 19 are formed in the covers so as to adjoin the exposure openings. The magazine, when in the camera, laterally engages a projection 18, Fig. 3, and the partition 2 engages the camera aperture framing 15 ; the film 17, extending across the exposure aperture of the magazine, is engaged by a pressing plate 16 extending from the camera through one of the recesses 19. A slide 20 extends over the edge and over both sides of the magazine to close the exposure openings and the recesses 19. On each side it is shaped is shown in Fig. 2, and has extensions 20a, 20b, and indentations 20d engaging grooves 21 provided with circular widenings 21a capable of being engaged by a circular indentation 20e in the slide. In the position shown, each exposure opening is closed, and a pin 13 in each side of the magazine is pressed by an extension 20a, and against spring action, into a radial groove 14 in each core 10 to prevent rotation of the core. Movement of the slide to the left, causes the extensions to ride over bevelled projections 22, 22a, so that the extension 20b visible in Fig. 2 engages the pin 13. In this position, the film in one compartment is capable of use, but the visible part 20c of the slide still obstructs the recess 19 in the other compartment, and the core 10 in that compartment is locked ; an extension of the slide may also close the exposure aperture of this compartment. Movement to the right of the slide, from the position shown, produces the same results, but with the compartments changed. If the exposure openings are in opposite edges of the magazine, separate slides may be provided for them. Separate slides may also be provided for openings both in the same edge.
Patent GB-469590-A (GB)
Title: Improvements in and relating to frames and hinging devices for handbags and the like
IPC: A45C13/04
Filed: 1937-02-04
Abstract: 469,590. Hinges. UNITED - CARR FASTENER CORPORATION. Feb. 1, 1937, No. 2889. Convention date, Feb. 5, 1936. [Class 65 (ii)] [Also in Groups XVII and XXII] The members 3, 4, Figs. 1, 3, of a handbag frame are pivotally connected together by means of pins 9 provided with heads 10 and secured by being flanged at 14 after insertion through the bearing parts 7, 8. The extensions 12 of the pins are engaged by hollow rivets connecting the members 5, 6, of a purse frame, the hollow rivets, which have open heads 18, being beaded or ridged at 22 after insertion through the bearing parts 15, 16. The flanges 14 of the pins 9 are produced by a tool 20, Fig. 9, formed with a cutting edge 20a, and the beading of the hollow rivets is effected by a tool 21, Fig. 11.
Patent GB-697786-A (GB)
Title: Chromium plating baths with self-maintained catalyst acid radical content and compositions for such baths, and chromium plating process
Inventor: PASSAL FRANK
IPC: C25D3/04
Filed: 1950-02-03
Abstract: 697,786. Electrodeposition of chromium. UNITED CHROMIUM, Inc. April 30, 1951 [Feb. 3, 1950], No. 2904/50. Drawings to Specification. Class 41. A process of electrodepositing chromium comprises the use of a bath consisting of 200 to 600 grams per litre of chromic acid, and strontium sulphate and potassium silicofluoride, each present in excess of its solubility in the chromic acid solution. For making up and maintaining aqueous baths for chromium plating the strontium sulphate content is in excess of about 0.61 parts by weight to 100 parts by weight of chromic acid and the potassium silicofluoride content is in excess of about 1.74 parts by weight to 100 parts by weight of chromic acid. The strontium sulphate and potassium silicofluoride instead of being added as such to the bath may be added in the form of non-catalytic strontium and potassium compounds, and sulphates and silicofluorides which will interact in solution to provide excess of the strontium sulphate and the potassium silicofluoride. Carbonates, hydrates and chromates of strontium and potassium are examples of the non-catalytic compounds. Examples of interacting sulphates and silicofluorides are sulphuric acid, sulphates of sodium, lithium, ammonia, and calcium, hydrofluosilicic acid, and silicofluorides of sodium, ammonia, magnesium and calcium. Thick bright coatings may be obtained by electrolysis in a bath in which the amount of chromic acid is from 200 to 350 grams per litre, and for thick gray chromium of good quality or for bright chromium in decorative plate thicknesses with high covering power, the bath should contain from 350 to 500 grams per litre.
Patent GB-328331-A (GB)
Title: Improvements in or relating to thermionic amplifiers for use with electric gramophones and the like
IPC: H03G5/06
Filed: 1929-01-28
Abstract: 328,331. McLachlan, N. W. Jan. 28, 1929. Amplifying systems.-The high and low (or low only) audio frequency components from a gramophone pick-up, &c., are amplified more than the middle frequencies to compensate for recording and reproducing losses. Two tuned resonance circuits are provided, one being tuned to low and the other to high frequencies, the high frequency circuit being damped out or removed if low frequency resonance only is required. Fig. 3 shows a post valve stage. The circuit S comprising inductance SL. condenser SC and resistance SR is designed to have a resonant frequency between 20 and 350 cycles whilst the circuit T resonates at a frequency of about 4000 cycles. Figs. 4 and 5 show pre-amplifier circuits, the resonance circuits in Fig. 4 comprising transformers HT and LT shunted by condensers HC and LC whilst in Fig. 5 the circuits comprise condensers and chokes, large condenser LK and large choke LL forming the lower resonant circuit whilst the higher resonant circuit comprises small choke HL and small capacity HK. Suitable sizes for the components are given in the Specification. Specification 304,710, [Class 40 (v), Wireless signalling &c.], is referred to.
Patent GB-751973-A (GB)
Title: Improvements relating to electrical resistance testing equipment
IPC: G01R27/02
Filed: 1954-02-02
Abstract: 751,973. Resistance measurement. RECORD ELECTRICAL CO., Ltd., and SPAINK, P. F. ABBINK-. Dec. 15, 1954 [Feb. 2, 1954], No. 3041/54. Addition to 679,511. Class 37. An instrument for measuring electrical resistance of the kind described in Specification 679,511 wherein a variable-speed A.C. generator whose output voltage is proportional to fre. quency is connected in a primary circuit in series with a choke presenting at the normal working frequency an impedance exceeding that of the load whereby the generator current is stabilized for all speeds above a fixed minimum, is provided with a secondary circuit comprising a rectifier milliammeter in series with a swamp resistance and a second choke, and a coupling element comprising a further resistance interconnecting the primary and secondary circuits, across which is connected the unknown resistance to be measured, whereby the meter measures the voltage appearing across the further resistance as a function of the unknown resistance. In Fig. 1 a hand generator A energizes the primary of transformer T in series with choke L1 and the secondary shunted by resistance R1 energizes rectifier milliammeter M in series with choke L2 and resistance R2 to measure the voltage developed across R1 as a function of the unknown resistance connectible between terminals XX across the transformer primary. Proportionality is variable by adjusting the secondary circuit impedance or the transformer ratio. In a modification (Fig. 2, not shown) the unknown resistance is connectible across a third winding of the transformer, and it may also be connected across the secondary thereof. Fig. 3 shows a modification dispensing with the transformer wherein the generator A in series with the choke L1 energizes resistance R1 across which is connected the unknown resistance and the series circuit comprising choke L2, rectifier milliammeter M and rechoke L2, rectifier milliammeter M and resistance R2.
Patent GB-176217-A (GB)
Title: Improvements in or relating to gripping devices for domestic use
IPC: A47J45/10
Filed: 1921-01-24
Abstract: 176,217. Millard, R. E. Jan. 24, 1921. Tongs.-A gripping-tool for domestic purposes comprises pairs of crossed levers pivoted together similar to lazy-tongs and formed at their free ends to provide two pairs of gripping jaws. As shown two pairs of levers a, b, f, g are connected together by the pivots c, d, e, h. The levers f, g are twisted and bent to form gripping-jaws m adapted to grip plates or similar articles, while the levers a, b are curved and provided with concave members j adapted to grip basins or other curved articles. To improve the grip, the members j may be roughened or provided with serrations or teeth and the jaws m, n faced with felt. A spring to hold the jaws normally open may connect the pivots h, and c.
Patent GB-1070083-A (GB)
Title: Improvements in processes for the treatment of hazel nuts, peanuts and soya beans
IPC: A23L11/30
Filed: 1965-01-23
Abstract: Peanuts, hazelnuts, and soya beans are heated (e.g. by steam) and treated (e.g. by spraying or soaking) with an aqueous solution comprising at least two of the acids, malic, lactic, tartaric and citric acid, to modify or neutralize their tastes and odours.  The nuts and beans may be vacuum dried.
Patent GB-1097337-A (GB)
Title: Improvements relating to oxygen masks for aircraft
Inventor: BLEACH BRUCE JOHN
IPC: A62B18/08
Filed: 1964-01-24
Abstract: 1,097,337. Face masks. BRITISH AIRGRAFT CORPORATION (OPERATING) Ltd. Jan. 21, 1965 [Jan. 24, 1964], No. 3220/64. Heading A5T. An oxygen mask unit for an aircraft comprises a mask having a mouthpiece 6 and head harness formed of straps 8, 10, 12, and a holder 2 mountable in an aircraft, which holder releasably engages the sides of the mask so that the mask can be pulled from the holder. The mouthpiece 6 is pivotally connected to the hardness by pins 16. The mask may be held in the holder by the pins 16 engaging in slots 18 in the holder and held therein by springloaded catches, or the holder or harness may be resilient such that the mask is a push fit in the holder. A microphone may be present in the mouthpiece.
Patent GB-142912-A (GB)
Title: Improvements in and relating to ship davits
IPC: B63B23/04
Filed: 1919-02-10
Abstract: 142,912. Waddington, J. F. Feb. 10, 1919. Davits.-Luffing davits 13 are pivoted to one end of a base 14 of channel section secured to the deck of a ship, and are operated by a handwheel 26 actuating pivoted links 23, 27. A screwed rod 25 pivoted on the same pin as the davit carries a nut 24 in one with the hand-wheel 26. To the nut 24 is pivoted one end of each of the links 23, 27, the other end of which is pivoted to the deck and davit respectively. Rotation of the hand-wheel moves the davit to the outboard position. An inclined tie-rod, secured to the upper end of the davit and pivoted to the deck, maintains the davit in position.
Patent GB-489854-A (GB)
Title: Improvements in devices for heating air by exhaust gases
IPC: B60H1/18
Filed: 1937-02-04
Abstract: 489,854. Heating air. EBERSPACHER GES., J. Feb. 4, 1937, No. 3273. Convention date, Feb. 4, 1936. [Class 64 (i)] In heating air by exhaust gas particularly that from internal-combustion engines, a part of the wall of the exhaust pipe 1 is enclosed by an air conduit 3 of which that part lying adjacent the exhaust pipe and forming a heat transfer wall is formed as a jacket with an intermediate layer 7 of porous material of good heat conductivity, e.g. metal wool, an outer layer 6 adjacent the pipe consisting of metal gauze and an inner wall 8 of sheet metal. The outer wall 4 of the jacket consisting of asbestos between sheet metal walls is detachably clipped on to the exhaust pipe by metal bands 9 and a screw clamp 10, so that on expansion the parts can slip over each other.
Patent GB-1014663-A (GB)
Title: Electrical rotating machine armatures and method of making same
IPC: H02K3/26
Filed: 1963-01-28
Abstract: 1,014,663. Dynamo-electric machine winding constructions. SOC. D'ELECTRONIQUE ET D'AUTOMATISME. Jan. 28, 1963 [Jan. 29, 1962], No. 3412/63. Heading H2A. In an electrical rotating machine armature comprising planar winding conductors 10 arranged in a predetermined pattern in two layers and regularly connected by their ends from one layer to the other to complete the winding pattern, the conductor material is ductile and has a smaller weight-to-conductivity ratio than copper, e.g. aluminium, and provided on at least one face of the armature are a plurality of copper commutator conductors 11 applied over parts 13 of the winding conductors and individually connected to corresponding portions thereof. The armature may be either discoidal, as shown, or of the linear or cylindrical type, and minimizes the size of press required to form the winding conductors whilst maintaining a good commutation surface. Both sets of conductors may be either coined or embossed to leave webs which are removed by etching, shearing, or grinding, then soldered or welded together, and adhered to an insulating sheet 23. In Fig. 5a, not shown, each commutator conductor covers four winding conductors but is connected only to one.
Patent GB-722034-A (GB)
Title: Improvements in or relating to methods and means of purifying gases
Inventor: HARRISON EDWARD ROBERT
IPC: C01B23/00
Filed: 1952-02-09
Abstract: Gases such as hydrogen, nitrogen and the inert gases are purified from substances which react with alkali metals, in particular oxygen and water vapour, through a gas permeable mass of inert material presenting a large surface to the gas and carrying particles of alkali metal condensed from the vapour state.  The gas may be first passed into contact with the vapour of the alkali metal, for example at a vapour pressure of c.a. 1 mm. of mercury.  Such a pressure is produced by liquid lithium at 723 DEG C., sodium at 439 DEG C., potassium at 341 DEG C., rubidium at 297 DEG C., and cesium at 279 DEG C.  The gas is preferably passed into a vessel containing alkali metal heated to a suitable temperature and mixed with the vapour of the alkali metal, and the mixture passed into a mass of inert material such as glass wool where condensation of alkali metal takes place allegedly, in the form of a finely divided highly reactive powder.  Apparatus for detecting small quantities of water vapour in gases comprises a glass tube having a ground glass or other socket at one end and a dished copper disc, blackened with lamp black on its inner convex face, cemented to the other, an inner tube carrying a heating mantle and terminating in a jet a short distance from the copper disc fitting into said socket, and the apparatus being immersed with the dished copper disc lowermost into liquid air or oxygen.  In operation a gas to be tested is passed into the inner tube and, impinging on the disc, deposits a layer of ice crystals. The jet is eccentric and may be rotated to direct a gas stream against different portions of the disc.
Patent GB-907219-A (GB)
Title: Improvements in or relating to clutch release bearings
IPC: F16D23/14
Filed: 1961-01-30
Abstract: 907,219. Friction clutches. BALDWIN, L. May 11, 1961 [Jan. 30, 1961], No. 3471/61. Class 80 (2). A clutch release bearing comprises an annular metal member 1 with radially projecting trunnions 2 for pivoting the bearing to the clutch throw-out fork, a ball bearing 3 fitted coaxially into the member 1, and an annular release pad 8, preferably of phosphor bronze, for engaging the clutch release plate and having a hollow cylindrical portion 7 fitting into the ball bearing so that it can rotate. The under-surface of the pad 8 is formed with a shoulder 9 engaging the inner race of the bearing so that the pad does not contact non-rotating parts of the release bearing.
Patent GB-1424457-A (GB)
Title: Selective adsorption process for air separation
IPC: B01D53/047
Filed: 1973-01-24
Abstract: 1424457 Pressure swing absorption UNION CARBIDE CORP 24 Jan 1973 [24 Jan 1972] 3508/73 Heading B1L An adiabatic pressure-swing separation of air by selectively absorbing nitrogen takes place alternately in at least three zeolitic molecularsieve absorption beds at ambient temperatures. In a cycle in which each bed assumes the position of a first bed in turn air is fed to the inlet of a first bed at highest superatmospheric pressure of 40-105 psia with nitrogen being absorbed and oxygen being discharged. At least part of this oxygen from the discharge end of the first bed is fed to a purged bed for partial repressurisation. The first bed is then depressurised to a lower superatmospheric pressure of 16-40 psia which releases oxygen from the first bed discharge end, part of which oxygen is used as product and the balance is used to repressurise or purge the other beds. The first bed is now depressurised by releasing waste gas, mainly nitrogen and subsequently introducing oxygen from another bed discharge to the discharge end of the first bed as a purge gas and following therethrough at a lowest superatmospheric pressure to desorb the nitrogen as waste gas. Oxygen is now introduced from another absorption bed at a pressure above said lowest superatmospheric pressure to at least partially repressurise the purged first bed and then the feed air is introduced to repeat the cycle. The ratio of the pressure of feed air to the first cocurrent depressurisation termination pressure is at least 1.5. The oxygen mass relationship of feed oxygen: oxygen gas from the first bed discharge end: oxygen return gas is 1:5 to 13.5:4 to 13.1.
Patent GB-647417-A (GB)
Title: Directive antenna system
IPC: H01Q19/17
Filed: 1948-02-06
Abstract: 647,417. Aerials. STANDARD TELEPHONES & CABLES, Ltd. Feb. 6, 1948, No. 3543. Convention date, Sept. 11, 1946. [Class 40 (vii)] A directive antenna system comprises a plurality of radiating elements such as the horizontal dipoles 2 and, for the purpose of adjusting the directive pattern, shielding means substantially a half-wavelength long in the direction of polarization are adjustably disposed adjacent certain of the radiating elements. The array may be located in front of a reflector 4 and it is stated that the normal procedure for adjusting the pattern is to insert a metal shield 5 between a certain radiator and the reflector to test the effect of eliminating the radiation from that dipole. If the pattern is improved the array is dismantled and the dipole adjusted to receive less energy. According to the present invention a cover 6 of resin-impregnated canvas is provided for the array and its wave-guide feed and a strap 7 of conductive material half a wavelength long in the direction of polarization of the radiation is slid up and down the cover, as shown, to locate the undesired dipoles. The strap which may be aluminium foil may then be taped over and covered with varnish so that it becomes a permanent part of the system. Several straps may be used if required.
Patent GB-843295-A (GB)
Title: Improvements relating to foldable doors or partitions
Inventor: PEMBERTON HECTOR MORRIS
IPC: E06B3/94
Filed: 1958-02-04
Abstract: 843,295. Gates. BILTWELL ACCESSORIES PROPRIETARY Ltd. Feb. 4, 1958, No. 3684/58. Class 45. In a folding door comprising one or more lazy tongs structures 5, 6 carrying a fabric covering 12, the or each structure comprises a series of pairs of plates 10, 11. Each plate 11 extends through a slot 27 in the complementary plate 10 and is connected thereto by a central hinge pin 8. The pairs of plates are connected by long pintles 9 which also serve to connect the structures together. Half length plates 14 connect the series of plates to posts 13, 15 forming the ends of the door.
Patent GB-1497810-A (GB)
Title: Frequency-controllable multivibrator circuits
IPC: H03K7/06
Filed: 1975-01-28
Abstract: 1497810 Frequency controllable multivibrator SONY CORP 28 Jan 1975 [29 Jan 1974] 3700/75 Headings H4L and H3T An astable multivibrator circuit of the known type shown in Fig. 3, of the emitter coupled coupled type, the output, collector, voltages moving between levels V cc , and V cc  -V cl , V cl  being the forward clamp voltages of diodes D 1 , D 2 , is used as a frequency or phase modulator, the multivibrator current being changed in accordance with the modulating {video} waveform, the multivibrator frequency, f, being proportional to the current, the current being controlled by transistors Q 5 , Q 6 , Q 7 , Fig. 5, the signal to be modulated being applied at terminal 10, shunt circuit 17-19, or (17, 18, 27, 28) Fig. 7 (not shown) controlling the duty ratio. Modulator circuit, Fig. 5.-The video waveform controls the current through transistor Q 5 , transistors Q 7 , Q 6  being switched with the transistors Q 2 , Q, respectively to ensure that the modulating current passes via the capacitor 8 to determine the frequency. Network 17-22 is provided for setting, by means of potentiometer 22, a reference frequency f 0  corresponding to the line synch clipping level. The setting of potentiometer 19 ensures a 50% duty ratio of the multivibrator waveform. The multivibrator outputs pass to differential amplifier 23; including constant current source Q 14 ; having output 24. Components, other than capacitor 8 and network 17-22 external to integrated circuit 6 include a white level clip network 5, and preemphasis circuit 4.
Patent GB-511130-A (GB)
Title: A process for the recovery of organic oxy-compounds from their aqueous solutions containing one or more salts
IPC: C07C29/82
Filed: 1939-02-04
Abstract: 511,130. Flash-distilling mixed solutions. NAAMLOOZE VENNOOTSCHAP DE BATAAFSCHE PETROLEUM MAATSCHAPPIJ. Feb. 4, 1939, No. 3733. Convention date, Feb. 19, 1938. [Class 32] A process for the recovery of organic oxy compounds such as glycols, glycerol, alcohols, ketones, and the like, from their aqueous solutions containing one or more salts, consists in bringing the aqueous solution into contact with a relatively high-boiling liquid which is substantially immiscible with the oxy compound and in which the salt is preferably insoluble, maintained at such a temperature that the oxy compound and water are flashed off immediately, leaving the salt in solution. The salt may be separated from the liquid which is then recycled to the flash distillation stage. An aqueous solution containing ethylene glycol and salt from a conta iner 1 is led into the flash evaporator 5 in which a hydrocarbon oil, fed by the pipe 6, is kept hot by the steam coil 4. The flashed off glycol, oil and water vapours pass along the conduit 11 to the condenser 12, where they form two layers in the separator 13, The oil is drained from the glycol into a tank 26, whence it is passed through the heater 10 back to the evaporator 5. The glycol-water mixture, free from salt, is drained into the storage tank 16 by the pipe 15. The salt is discharged from the evaporator into the tank 19, carrying considerable oil with it. This oil is recovered and passed to the tank 26 by the aid of a series of settling tanks 22 and 23.