baber/WOPTO huggingface dataset:
Patent GB-1174983-A (GB)
Title: Pilot or Indicator Lamp Panel Assemblies
Inventor: BASSANI ERMANNO
IPC: H01H47/24
Filed: 1967-04-12
Abstract: 1,174,983. Indicator lamps. BASSANI S.p.A. 12 April, 1967 [12 April, 1966], No. 16832/67. Heading F4R. [Also in Division G1] In a pilot or indicator lamp panel assembly, a self-holding photo-electric device is used comprising a lamp 1, and a photoresistor 5, located so as to be illuminated by the lamp when energized, an increase in the photoresistor conductivity, due to illumination, closing a circuit and maintaining the lamp energized. The device is contained in a housing, Fig. 3, closed by a cap 16 held in position by a collar 18 provided with means 24, 25 for mounting the housing on an appropriate panel, Fig. 4 (not shown). In the circuit of Fig. 1, closure of press button 2 causes energization of the lamp 1 from the mains 7 through the circuit comprising switches 6 and 2, and load 3 (or 4) which is an auxiliary lamp (or relay) and may in fact not be included in the circuit. Increase in the conductivity of the photoresistor 5 causes this to take current and even when button 2 is released the lamp 1 remains energized. To switch off the lamp, button 6 has to be pressed. The circuit including lamp 1 and resistor 5 is housed in an indicator or signalling device having a translucent cap 16 with markings 23. The collar 18 holding the cap has apertured stirrups 19, 20 which clip over protuberances (e.g. 21, 22) on the housing end walls. The end tongues 24, 25 on the collar are useful when the housing is mounted in the signalling or indicating panel, Fig. 4 (not shown), with a number of other such indicator devices to engage in apertures (30) in the flanged support (26). The device can be used in electrical distribution equipment.
Patent GB-1431700-A (GB)
Title: Oil mist lubricating apparatus
IPC: F16N7/32
Filed: 1973-04-09
Abstract: 1431700 Oil coalescing device DE LIMON FLUHME & CO 9 April 1973 [15 April 1972] 16862/73 Heading B1T [Also in Division F2] An oil mist lubricating apparatus has a coalescing device which has a construction 14 adjacent to which is placed a packing of movable particles 6 on which the mist coalesces. Oil is atomised and passed through ducts (Fig. 1 not shown) and coalesced at lubrication points using the device. Oil mist is passed through constriction 14 and through particles 6 which may be enclosed in a tubular container having metal perforated end plates 5 and 8. A constricted nozzle completes the device. Both constrictions have conical passages communicating with particles 6. The particles may be spherical or ovoidal and made of polyamide. The device may be made of brass or steel, and the particles may move in operation to give a fluidized bed.
Patent GB-102500-A (GB)
Title: Improvements in High Frequency Signalling, particularly applicable to wireless telephony.
IPC: H04B1/68
Filed: 1916-11-27
Abstract: 102,500. Western Electric Co., (Assignees of Kendall, B. W.). Nov. 29, 1915, [Convention date]. Wireless telegraphy and telepliony; electric oscillations, producing.-In a method of receiving signals transmitted by modulated high-frequency waves, particularly applicable for wireless telephony, the received oscillations are combined with locally-generated oscillations of the same frequency. In the system shown in Fig. 1, the aerial circuit is coupled to a local oscillationgenerator 40 and to a secondary circuit 20, 21 connected to an audion or other detector 33. The negative pole of a battery is connected to the grid to reduce or eliminate the current flowing from the filament to the grid. Instead of using a separate generator 40, the audion may be arranged to produce oscillations of the same frequency as the received waves, the necessary coupling between the input and output circuits of the audion being obtained by connecting the filament to a point in the secondary 20, the secondary circuit 20, 21 preferably containing an adjustable resistance by which the strength of the local oscillations is controlled. In the arrangement shown in Fig. 3, the received oscillations are amplified by an audion C before being combined with the oscillations produced by the generator D. The coil 70 is coupled to the coil 20 so as to cause the production of oscillations in the audion D, whereas a coil 67 is coupled to the coil 60 so as to neutralize any tendency of the audion C to generate oscillations owing to electrostatic coupling between the input and output circuits. In the system shown in Fig. 4, the received oscillations are amplified by an audion E before being combined with the oscillations produced by the generator F, the output circuit of which has three parallel paths, the first containing a battery 35 and a high ohmic resistance 80, the second containing a relatively large condenser 81 and the primary 82 of a lowfrequency transformer, whilst the third path contains the condenser 81, a condenser 73 of low capacity, and a coil 70 which couples the input and output circuits. The secondary of the lowfrequency transformer is connected to a non-inductive resistance 84, across part of which is connected the input circuit of an ordinary audion G, the output circuit of which is connected to a telephone transformer 91. The resistances 80, 84 may be of the order of 100,000 ohms.
Patent GB-940567-A (GB)
Title: Portable space heater
IPC: F24H3/04
Filed: 1962-05-03
Abstract: 940,567. Spray burners; air heating stoves. MASTER VIBRATOR CO. May 3, 1962 [May 5, 1961], No. 17031/62. Headings F4S and F4T. A portable space heater comprises a combustion chamber 19 connected to a burner housing 22 and removably mounted above a fuel tank 5, a compressor 32 for delivering atomizing air to an aspirating nozzle 26 disposed about a fuel delivery tube 23, 24 and a fan 31 for delivering further air to and about the combustion chamber 19. The burner housing 22 has air intake holes 36 and is mounted about an opening 20 in a plate 18 at the inner end of an inner cylinder 16 defining the combustion chamber 19. A conical deflector 21 is mounted at the discharge end of the combustion chamber 19 and defines an annular discharge passage. The inner cylinder 16 is mounted by means of spacers 13<SP>1</SP> concentrically within an outer cylinder 13 which also houses an electric motor 29 driving the compressor 32 and the fan 31. Air filters 33 and 34 are located upstream and downstream of the compressor. Ignition elements 38 in the burner housing 22 are connected to a transformer 8 mounted in a ventilated cavity 6 in an extension of the fuel tank shell. A filter tube 25 is fitted in the fuel line between the fuel delivery tube and the tank 5. The outer cylinder 13 has slotted plates which are slipped on to studs 12 on brackets 11 fixed on the top of the fuel tank 5. The latter is seated on cross-bars between tubular lays 2 forming A-shaped support frames. The drive from the motor to the compressor and fan may be transmitted by gears or belts.
Patent GB-871875-A (GB)
Title: Improvements in or relating to spinnerets
Inventor: PALMER HAROLD JOHN
IPC: D01D4/02
Filed: 1959-05-20
Abstract: A spinneret has orifices having their vertical section in the form of a downwardly tapering frustocone, the narrow end of which continues as a cylindrical capillary coaxial therewith, the conical angle not exceeding 14 degrees and preferably not exceeding 7 degrees, the length of the frustocone being from 0,75 to 2,5 cms. and the length of the cylindrical portion being from 5%-40%, preferably from 20%-40%, of the total length of the conical and cylindrical portions. The edges of the orifices may be slightly rounded.  Such spinnerets are suitable for the melt-spinning of highly viscous melts of filament-forming polymers, especially polyolefins, e.g. polyethylene, polypropylene, poly-4-methylpentene-1 and polystyrene, and may also be used in the melt-spinning of polyamides.  Specifications 538,986, 731,849 and 810,023 are referred to.
Patent GB-937228-A (GB)
Title: Improvements in winnowing apparatus for cigarette-making machines
Inventor: LABBE FRANCIS AUGUSTE MAURICE
IPC: A24C5/18
Filed: 1960-05-16
Abstract: 937,228. Feeding tobacco. MOLINS MACHINE CO. Ltd. May 15, 1961 [May 16, 1960], No. 17181/60. Class 130. Winnowing apparatus for a cigarette-making machine in which cut tobacco is carried by an airstream as a step in the formation of a tobacco filler comprises a picker roller 4 arranged to remove tobacco from a carded roller 1 and throw it across a first airstream whereby light particles are carried away by the airstream while heavier particles continue to move substantially along their original path and across an opening 18 from which a second airstream issues to separate any remaining light particles from the heavier particles, the residue falling into a box 16. The picked tobacco is thrown across an adjustable plate 6 towards a rotating roller 7 which, with an adjustable guide member 8, forms the entry to a passage 9 up which the light particles travel to a perforated conveyer tape 10, as described in Specification 895,733. Suction is exerted from a chamber 11 and is augmented by a suction box 21, as described in Specification 916,141. A blower 28 is provided and the first airstream is constituted by air passing through a perforated plate 14 over which the picked tobacco is thrown. The heavier particles strike a wall 15 and fall through the opening 18 of the box 16. The box also has a perforated plate 17 through which air flows into the box and upwards through the opening 18 to the passage 9 to constitute the second airstream. The width of the opening 18 can be adjusted by a screw 27.
Patent GB-436316-A (GB)
Title: Hinges for adjustable cases, trunks, and such-like containers
IPC: A45C7/00
Filed: 1934-06-11
Abstract: 436,316. Adjustable hinges. PEEL, A. L., 23, Somerset Road, Handsworth Wood, Birmingham. June 11, 1934, No. 17185. [Class 65 (ii)] A hinge device for an expanding case or the like consists of an elongated box-like container 12 fixed to one member of the expanding case and formed with slotted sides 11 through which the hinge pin passes and along which the pin is moved to the adjusted position and thereupon locked against backward movement; the locking may be automatically or manually effected. The hinge pin is fixed between ears 5 of a plate 3 fixed to the other member of the expanding case. In the form shown in Fig. 1 the hinge pin passes through collars 6 which are formed on the interior end faces with teeth 13 adapted to be lockingly engaged by the teeth 29 on a plate member 24 which is moved transversely by the co-operation of its inclined slots 28 with upstanding lugs 27 on a longitudinally movable plate 20, Fig. 3, operated by a hand lever 21 and held in either position by the snap engagement in one or other recesses 31, formed in the plate 20, of a boss pressed out from the base of the box-like container 12. In the form shown in Fig. 10 the hinge pin is provided with a detent 36 which in the flat position of the hinge member 3 engages a resiliently mounted buttresstooth rack 35. The expanding case may be compressed since the detent 36 can ride down over the rack teeth but to raise the top member of the case for expansion it is necessary first to open the case in the ordinary way by turning the top member around the hinge whereby the hinge pin and its detent 36 are rocked out of engagement with the rack 35. Fig. 15 shows an arrangement somewhat similar to that of Fig. 1, but in which the transversely moved locking rack 24 is moved in both directions by inclines on the longitudinally moved slide 20. The locking racks may be key-actuated. A number of other modifications are described.
Patent GB-1345898-A (GB)
Title: Colour reversal development of photographic silver halide  material
IPC: G03C1/053
Filed: 1973-05-11
Abstract: 1345898 Reversal colour photographic silver halide material FUJI PHOTO FILM CO Ltd 11 May 1973 17196/71 Heading G2C A reversal colour photographic silver halide material, which is to be developed in colour developers containing couplers, comprises a support bearing red-, green- and blue-sensitive silver halide emulsion layers, the binder for at least one of these layers containing gelatine and a water-soluble copolymer having a repeating unit of the structure:- wherein x is a number less than 100 and not less than 50. The silver halide may be silver iodobromide. The copolymer preferably has a molecular weight of 20,000-100,000. The copolymer may be present at 1-90% by weight, based on the total weight of gelatine and copolymer. Colour density in the reversal colour images is increased. If the same density is kept, thinner emulsion layers can be used, and hence it is possible to improve the sharpness of the image and decrease the amount of silver halide in the emulsion layers.
Patent GB-1333545-A (GB)
Title: Process for producing 2,2-anhydro-1-beta-d-arabinofuranosyl  cytosine
IPC: C07H19/06
Filed: 1972-04-14
Abstract: 1333545 Cytidine derivatives ASAHI KASEI KOGYO KK 14 April 1972 [15 April 1971 16 April 1971] 17247/72 Heading C2C The novel compound of Formula II is prepared by reaction of cytidine with thionyl chloride in a polar organic solvent followed by hydrolysis and may be converted into 2',2<SP>1</SP>- anhydro - (1 - # - D - arabinofuranosyl) cytosine by heating in acidic aqueous media.
Patent GB-957414-A (GB)
Title: Benzene monoazo dyestuffs
IPC: D06P1/04
Filed: 1960-05-16
Abstract: The invention comprises dyes of formula <FORM:0957414/C3/1> where R is a dicyanobenzene radicle, which may contain alkyl or CF3 substituents, Ar is a phenylene group with -N(X1)X2 p to the azo group, X1 is a C1-C5 alkylene group carrying a carboxyl group esterified with a C1-C5 unsubstituted alkanol, X2 has one of the values of X1, or is a cyan substituted C1-C5 alkyl group, and the dyes are free from sulphonic and carboxylic acid groups.  The dyes are made in conventional fashion from a diazo component RNH2 and an appropriate coupling component. Coupling is preferably effected in acid aqueous media.  Specified diazo components are 2,4-, 2,5- and 3,4-dicyano-anilines, 2-trifluoromethyl- 4,6 -dicyano- and 3,6 - dimethyl - 2,4 - dicyano-anilines and 2,4-dicyanotoluidine. Specified coupling components are N-(methylphenyl)-N-carbomethoxyethyl - b  - aminopropionic acid methyl ester, N - phenyl - N - b  - cyanoethyl-b -aminopropionic acid methyl or ethyl ester and N - phenyl - N - carbomethoxymethylaminoacetic acid methyl or ethyl ester.  The dyes colour polyamide and polyethylene terephthalate fibres. Examples are given of the preparation of the dyes and their use in dyeing the above fibres additional coupling components used, to those listed above, being N-phenyl-N-carbomethoxyethyl - b  - aminopropionic acid methyl ester and N-(m-chloro- and -methyl-phenyl) - N - b  - cyanoethyl - b  - aminopropionic acid methyl esters.  Red and yellow shades are obtained.
Patent GB-563114-A (GB)
Title: Improvements in pneumatically controlled vibratory mechanism
IPC: B06B1/18
Filed: 1942-12-05
Abstract: 563,114. Packing. AVERY, Ltd., W. & T., and PAGE, A. E. Dec. 5, 1942, No. 17318. [Class 94 (i)] [Also in Groups XXI and XXX] In order to consolidate finely powdered material, such as an explosive powder charge, in a container such as a cartridge, the containers are supported on a base-plate a which is vibrated by pneumatic means. The base-plate is mounted on anchored leaf springs c and is provided with a plunger l which is engaged by a plunger k secured to an adjustable spring m and a diaphragm g which covers a circular pneumatic pressure inlet chamber f and a concentric annular exhaust chamber f<2>. Specification 556,748, [Group XXX], is referred to.
Patent GB-1155814-A (GB)
Title: Stabilised electrical power supply equipment
Inventor: FOSTER BASIL BERNARD
IPC: H02M3/156
Filed: 1968-04-10
Abstract: 1,155,814. Automatic control systems. STANDARD TELEPHONES & CABLES Ltd. April 10, 1968, No. 17376/68. Heading G3R. A regulated power supply of the type in which the magnitude of a D.C. output, e.g. voltage, current, or power, is maintained constant comprises a feedback loop the gain of which is controlled to provide maximum gain at the desired output level. As shown, a load 5 is supplied with constant current by the amplified, rectified and smoothed output from an amplitude comparator 2 which produces a series of pulses having a width related to the magnitude of an error signal derived from a feedback loop including a current sensing resistor 6, a reference source and a differential amplifier 7. The comparator 2 comprises two transistors connected as shown, the error signal being applied to the base of one transistor and a reference wave, e.g. of sawtooth form, being applied to the base of the other transistor, so that the comparator produces output pulses of duration equal to the period of time during which the instantaneous amplitude of the reference wave exceeds the magnitude of the error signal. The gain of the feedback loop may be made to vary non-linearly in response to charges in the magnitude of the output by including non-linear components in the differential amplifier 7. In the preferred embodiment, however, the gain of the feedback loop is varied by altering the conversion gain of the comparator 2, and this is effected by suitable shaping of the slope of the reference wave. For example, the wave may decay exponentially, or it may have a central portion of lesser slope than two adjacent portions. The way in which this sloping effects the desired gain control is described with reference to Fig. 2 (not shown).
Patent GB-1192200-A (GB)
Title: Dual Shaving Head for Electric Dry Shaver.
IPC: B26B19/10
Filed: 1967-09-26
Abstract: 1,192,200. Dry shavers. SUNBEAM CORP. 26 Sept., 1967 [28 Nov., 1966], No. 17396/68. Divided out of 1,192,199. Heading B4B. The subject matter is identical with that of Specification 1,192,199 but the claims are directed to the dual shaving head including the head frame, comb and comb support bar.
Patent GB-673303-A (GB)
Title: Improvements in or relating to screw drivers and their manufacture
Inventor: CAMBERN CECIL MONTGOMERY
IPC: B25B15/00
Filed: 1950-07-12
Abstract: 673,303. Making hand tools. GUEST, KEEN & NETTLEFOLDS (MIDLANDS), Ltd. July 12, 1950, No. 17420/50. Classes 83 (ii) and 83 (iv). [Also in Group XXIII] Forging.-A screw-driver for a screw having a generally conical recess with a central cavity 13, Fig. 2, and radial slots 14, is made by forcing the tapered end of a cruciform section bar, Fig. 6, into a die 30, Fig. 5, having a cavity 31 substantially the same as the recess in the screw. The end of the bar is first tapered by grinding &c. to form end faces 24, 25 at angles corresponding to the shape of the bottom of the recess. The bar is then forced while cold into the die cavity 31 which may be slightly deeper than the screw recess and has an aperture 32 at the bottom for the escape of excess metal. The formed shank is finally hardened by heat treatment and secured in a handle.
Patent GB-652935-A (GB)
Title: Improvements in or relating to process for making organic acids from carbonaceous material
IPC: C07C51/27
Filed: 1948-06-29
Abstract: Organic acids are made from coal, coke, carbon blacks or pitch by oxidation at elevated temperature with nitric acid and oxygen at a partial pressure of oxygen of 100-1000 pounds per square inch.  Acids obtained include mellitic acid and benzene di-, tri-, tetra- and penta-carboxylic acids and aliphatic acids such as oxalic and acetic acid.  Temperatures specified range from 80-170 DEG  C. and air may replace oxygen.  In examples: (1) coal is treated for 24 hours with 2 molar nitric acid at 150 DEG  C. and oxygen at 600 pounds per square inch; (2) Pocahontas coal is treated for 4 hours with 4 molar nitric acid at 90 DEG  C. and oxygen at 400 pounds per square inch; (3), (4), (5), (6), (7), (8) and (9) are similar to (2) except that in (3) the temperature is 80 DEG  C., in (4) temperature is 100 DEG  C.; (5) carbon black is used, temperature is 90 DEG  C. and time 2 hours, (6) carbon black is used, (7) coke is used, (8) pitch is used and 9) pitch is used, temperature is 80 DEG  C. and time 2 hours; in each case the acids are recovered by solvent extraction from the reaction mixture.
Patent GB-563291-A (GB)
Title: Improvements in or relating to tracks for model railways
IPC: A63H19/30
Filed: 1942-12-11
Abstract: 563,291. Model railways. PINDER, T. Dec. 11, 1942, No. 17831. [Class 132 (iii)] Tracks for model railways comprising laterally flexible rails interconnected by cross-ties or sleepers for maintaining the gauge, e.g. as described in Specification 542,521, are characterised in that any desired rail is furnished with a movable joint formed by overlapping the the ends of two lengths of rail with connecting means for holding the joint and affording relative movement between said ends when the rail is flexed so that the rail extends or contracts automatically in length. As shown in Figs. 2-6, two rail members 1, 2 are halved at their ends and braced by a flexible strip 7, with clips 8, separate or integral with the strip 7, gripping the joint. The strip 7 and integral clip may be of double formation 12, Fig. 9, to lie on both sides of the rail joint, and the bottom may be cut into small sections to provide flexibility. The ends of the rails may be tapered as in Fig. 11, and one of the clips 8 may be secured to a sleeper. Fig. 12 shows a section with one rail having halved ends, and a jointed rail 3-4 with plain ends. Adjacent sections are secured together by a clip fastener 14 pivoted on a pin 15 passing through holes in the end sleepers, so that the rails with plain ends are aligned. The invention is applicable to points, Fig. 14 (not shown) and cross-overs, Fig. 15 (notshown).
Patent GB-1566076-A (GB)
Title: Display devices
IPC: G02F1/13357
Filed: 1977-04-28
Abstract: The cell (1) contains a liquid crystal layer which is located between a front electrode and a rear electrode and can be switched area by area between various optical states. Behind the liquid crystal cell in the viewing direction, a panel (2) is arranged which consists of a carrier material with an index of refraction which is greater than one and has a fluorescent additive. So that the display device is given a compact design, can be produced relatively simply and, at the same time, provides a good optical contrast, at least the light-absorbing parts of the liquid crystal cell are dimensioned in such a way that they only cover the switchable liquid crystal areas. It is often advisable for the liquid crystal cell to consist of individual sub-cells which each cover one of the switchable liquid crystal areas. <IMAGE>
Patent GB-1350025-A (GB)
Title: Differential pressure indicating apparatus
IPC: G01L13/02
Filed: 1972-04-17
Abstract: 1350025 Pressure gauges DRESSER INDUSTRIES Inc 17 April 1972 [22 April 1971] 17712/72 Heading G1L In a differential pressure gauge a bellows 47 is located within a pressure tight housing 38 and is subject externally to a high-pressure through a tube 65 and internally to a low-pressure through a tube 71 and the expansion and contraction of the bellows 47 is transmitted externally of the housing 38 by a lever 49. The lever 49 passes along a longitudinal opening 76 in an arm 75 of the housing and the remote end of the arm 49 is held in abutment with a thin metal flexible diaphragm plate 81 by a screw 91 passing through a lug 89 formed on a beam 88 at right angles to the arm 49. Any alteration in the differential pressures tilt the beam 49 and, via the beam 88 and a flexible plate 106, tilt a further beam 108 which in turn tilts a further beam 114 and a vane 11. The vane 11 is apertured at 12 and a light from a bulb 13 directed on to one or other of photo-cells 14, 15 effects a balanced bridge circuit across a stabilizer network 20 to operate a D. C., servomotor 21 which motor 21 through gears 24, 25 and 26, lead screw 27 and a spring 28 returns the vane 11 to the null position and at the same time actuates a transcribing pen 30, a visual display 31 and/or a printing counter 32.