baber/WOPTO huggingface dataset:
Patent GB-353672-A (GB)
Title: Improvements in and relating to photo-electric cell circuits
IPC: H01J40/14
Filed: 1930-07-14
Abstract: 353,672. Photo-electric cell circuits. EDIBELL SOUND FILM APPARATUS, Ltd., 40, Old Broad Street, and BETTS, W. M., 89, Wardour Street, both in London. July 14, 1930, No. 21255. [Class 40 (v).] A relay e, Fig. 2, cuts off the supply to a photoelectric cell c if the supply fluctuates in such a manner as to cause the voltage supplied to the cell to rise above a predetermined limit. The relay is connected in the circuit of a potential divider b, b<1> supplying the cell, and disconnects the cell when excessive current flows through the potential divider. A second relay d disconnects the cell if the current falls below a minimum. The relay may be shunted across the potential divider in series with a resistance. The relay may be included in the plate circuit of a thermionic valve in the amplifier for the photo-electric current, Figs. 3, 4, and 5 (not shown), or in the high-tension supply, Figs. 6 and 7 (not shown). As shown in Fig. 8, a shunt resistance q is maintained across the supply until the current to the valves and photo-electric cell at r reaches the value at which a relay a is operated.
Patent GB-154689-A (GB)
Title: Improvements in ignition devices for internal combustion engines
IPC: H02K21/12
Filed: 1919-08-29
Abstract: 154,689. Williams, R. A. Aug. 29, 1919. Magneto-electric machines.-High-tension ignition magnetos of the rotating-magnet type in which the magnet is placed on the fly-wheel or other rotating part of the engine are constructed so that the armature core is parallel to the shaft axis. As shown in Fig. 2, the magnet C is fitted through a slot C<1> in the fly-wheel A. In the modification shown in Fig. 6, a bar magnet K is secured to the fly-wheel by means of brass bolts and distance-pieces L, M. The contact-breaker is formed by placing on the rotating part a brasscontact piece G having insulated gaps H therein co-operating with a fixed spring plate F. Alternatively, the form shown in Fig. 7 may be used.
Patent GB-422426-A (GB)
Title: Apparatus for cooling beer or other liquids
IPC: F25D3/02
Filed: 1933-07-29
Abstract: 422,426. Refrigerators; cooling liquids. GASKELL & CHAMBERS, Ltd., Dale End Works, Dale End, Birmingham, and BROWNLOW, R. E., 105, Windsor Road, Penarth, Glamorgan. July 29, 1933, No. 21337. [Class 29] A liquid cooler comprises a chamber containing a tray 14 for ice or similar refrigerant in its upper portion and a chamber 9 for liquid to be cooled projecting through an opening in the tray, apertures 17 being formed in the tray to allow liquid from the refrigerant to flow down the surface of chamber 9. The liquid to be cooled is supplied through pipe 18 and is admitted through a gauge glass fitting 26 to the apparatus under the control of a valve 24. Uncooled liquid may be drawn off at a tap 21. An adjustable pressure relief valve 28 is provided on the gauge glass 26. A pipe 32 for drawing off cooled liquid and a pipe 34 for drawing off ice water are also provided. A thermometer may be placed in the gauge glass 26. Cold air may be withdrawn by aperture 8 and supplied to the storage containers for the liquid.
Patent GB-472293-A (GB)
Title: Improvements in generators of electric saw-tooth oscillations
IPC: H03K4/39
Filed: 1936-08-01
Abstract: 472,293. Valve generating circuits. COMPAGNIE POUR LA FABRICATION DES COMPTEURS ET MATERIEL D'USINES A GAZ. Aug. 1, 1936, No. 21391. Convention date, Aug. 21, 1935. [Class 40 (v)] Saw-tooth current is generated in the deflecting coils of a cathode-ray tube by allowing the current from a source to build up gradually in the inductive circuit, the fly - back being provided by the discharge of a condenser through a coil in the inductive circuit. The deflecting- coil L2 is connected in a series circuit comprising a source u, a small coil and a larger coil L1, the resistance r representing the inherent resistance of the coils. The self capacity c of the coils L1, L2 is small. A source U of higher voltage than u charges through a resistance R a condenser C which discharges through the coil and a valve T when the latter is trigged by a synchronizing voltage on its grid. When the condenser C discharges, the current which had been gradually rising through the coil L2 is rapidly reduced to zero. The valve T then blocks, and the current from source u gradually rises again through the coil L2. The coil l tends to maintain the valve T conductive for a short time after the condenser C is discharged, and this results in a straightening of the exponential curve representing the rise of current through the coil L2. The coil L1 may have an iron core operated in a saturated condition so that its inductance falls as the current rises ; this tends to linearize the rise of current. A second inductance coil in the discharge circuit of the condenser C may be associated with the deflecting-coil L2 in opposition thereto so as to accelerate the fly-back, Fig. 3 (not shown).
Patent GB-232107-A (GB)
Title: Improvements in or relating to free-wheel mechanism
IPC: F16D41/24
Filed: 1924-09-10
Abstract: 232,107. Kindermans, G. Sept. 10, 1924. Clutches, free-wheel are modified to facilitate unscrewing from a cycle hub &c. The screwed inner ring 1 is for this purpose provided with a transverse flange 3 adapted to be positively gripped by a tool. The flange 3 may have one or more pairs of holes 4, Figs. 2 and 4, or projections or slots, or may be formed with a hexagonal central hole 5<1>, Fig. 5, adapted to be engaged by the shaped tool.
Patent GB-788244-A (GB)
Title: Improvements in or relating to devices for supporting and driving bobbins for synthetic thread winding machines
IPC: B65H54/54
Filed: 1955-07-25
Abstract: 788,244. Winding bobbins. INDUSTRIEWERKE KARLSRUHE AKT.-GES. July 25. 1955 [Aug. 4, 1954], No. 21471/55. Class 120(2) A winding machine has bobbins pressed in pairs uniformly against a driving drum, the bobbins being supported by parallel slide members. Each bobbin 9, 10 is supported by a guiding plate 16 or 17 carried by anti-friction guides 33 in parallel guide members 32 pivotally mounted on studs 41 so that they may be manually tilted by handles 40 from a working position to one from which bobbins may be doffed. Each guiding plate carries a tube 54, Fig. 7, on which a sleeve 57 is rotatably 'carried by antifriction bearings. Mounted on this sleeve is a cap 64 that is axially displaceable by movement of a rod 61. This movement takes place in one direction when the members 32 are tilted, whereupon the end 67 of the rods 61 engages a fixed cam 66 and the rod 61 moves relative to the cam taking with it cap 64 and so affecting clamping discs 59 that they release their grip on the bobbin, allowing it to be removed. One end of the sleeve 57 is formed as a brake drum 58 against which a brake band 38 expands when the bobbin windings have reached a predetermined diameter. A cord 18, Fig. 3, is attached to the guide plates 16, 17 and passes over pulleys 19, 20 carried by members 23, 24 mounted on a spindle 25 threaded in opposite directions. A weight 22 suspended in a loop of the cord 18 normally presses bobbins 9, 10 against a driving roller 13. By altering the position of the pulleys 19, 20, the pressure on the roller 13 can be varied and for this purpose a separate electric motor drives the spindle 25 throughout the building of the bobbins
Patent GB-221824-A (GB)
Title: Travelling illuminated advertising apparatus
IPC: G09F21/04
Filed: 1924-09-11
Abstract: 221,824. Sauvage, A. Sept. 11, 1923, [Convention date]. Elements moving always in one plane, rotating; moving apparatus combined with vehicles; optical-projection apparatus, applications of.-In advertising apparatus of the type in which a closed wheeled vehicle carries a screen on which advertisements are optically projected in succession, the advertisements being on transparencies carried by an intermittently moved disc, the vehicle body 3 is formed to resemble a photographic camera, the focussing screen 4 of which forms the projection screen and the objective 5 the optical projector. The disc is rotated by clockwork or by hand.
Patent GB-927474-A (GB)
Title: High frequency tube apparatus
IPC: H01J23/207
Filed: 1959-07-02
Abstract: 927,474. Velocity-modulated tubes. VARIAN ASSOCIATES. July 2, 1959 [July 17, 1958], No. 21548/61. Divided out of 927,471. Class 39 (1). [Also in Group XI] A high-frequency discharge tube apparatus, preferably a velocitymodulated tube, has a thermionic cathode 101, Fig. 2, in which the filament heater 104 is held between two refractory insulating members 105, 106. The member 105 is an alumina ceramic disc and member 106 a sapphire rod. Specifications 927,472, and 927,473 also are referred to.
Patent GB-1448435-A (GB)
Title: Wall plug sleeve and method of making such a sleeve
IPC: F16B13/12
Filed: 1975-05-20
Abstract: 1448435 Making wall plugs TUFLEX AG 20 May 1975 [5 June 1974] 21687/75 Heading B3A [Also in Division F2] An expansible wall plug 7 is made from a sheet metal blank 1 having at least two segments 3 defined by at least one longitudinal slot 2 extending from one end of the blank, each segment 3 having a longitudinally extending integral tongue 4, the tongues 4 being bent out of the plane of the blank and back on to the blank to form doubled-over portions (shown dotted in Fig. 2), and the blank then being formed into a generally cylindrical sleeve 7 the longitudinal axis of which is parallel to the slot(s) 2 so that the doubled-over portions form an expansible section of the sleeve with a tapered bore. In use, the sleeve is anchored in a hole by driving a tapered expander plug 8 into the tapered bore to expand the expandable section radially. A screw or bolt can then be received into the rear portion of the sleeve, preferably forming a female thread in the sleeve as it is driven in. Tabs 6, 6a pressed out of the segments 3 engage the wall of the hole to resist rotation of the sleeve when a screw is driven in. The end portion 4a of each tongue is tapered in thickness so that when it is doubled back, it forms a smooth entry to the tapered bore. The tongues 4 may be inside the completed sleeve, as shown, or outside (Fig. 15, not shown). The portions 4a are curved in cross-section (Fig. 5, not shown) to fit closely against the main sleeve wall, and the main tongue portion 4 may be flat or of curved transverse cross-section. The end of the blank opposite to the tongue 4 may have longitudinally extending integral tongues 14, one aligned with each segment 3, which tongues are folded back along the blank to form a double-walled portion of the sleeve, Fig. 9, to receive the screw or bolt. The sleeve of Figs. 12, 14 is made from a blank having transverse grooves 26 which form circumferential grooves in the outer surface of the sleeve. Each tongue 24 has on one edge a tab 24b tapered in thickness in the longitudinal direction of the blank, the tabs 24b being folded back on to their respective tongues 24 before the tongues are themselves bent back, so that the tabs reinforce the walls of the tapered bore. In Fig. 17, the tongues 44 are bent out from the central portion of the blank to form in the completed sleeve a tapered bore having its wider end adjacent the leading end of the sleeve. A bolt, not shown, is screwed into an expander plug 48 to draw the latter into the tapered bore.
Patent GB-929172-A (GB)
Title: Improvements in or relating to typewriters
IPC: B41J1/02
Filed: 1958-07-07
Abstract: 929,172. Typewriters &c. L. SALMON. July 7, 1959 [July 7, 1958], No. 21688/58. Class 100 (4). A type bar 1 is provided with a type face for drawing large circles comprising a rigid bar 2 of conventional width and a second part 3 pivoted relative thereto. The part 3 has scribing points 6 and after it has been positioned in the printing position by depressing a key is is rotated by pressing a knob 12 which has a screw-threaded engagement with a rod 9 which by formations 8 engages slots 7 in the part 3. If it is desired to draw arcs only one point 6 is provided and a masking device 13 is used to position the point 6 where it is desired to start the arc.
Patent GB-294582-A (GB)
Title: Manufacture of quaternary ammonium compounds
IPC: C07C233/00
Filed: 1928-07-26
Abstract: 294,582. Soc. of Chemical Industry in Basle. July 26, 1927, [Convention date]. Addition to 219,304. Quaternary ammonium compounds are prepared by treating with an alkylating or aralkylating agent the monoacylated or unsymmetrically diacylated diamines described in the parent Specification. In the examples oleyl-diethylethylene diamine is treated with methyl iodide, oleyl-diethyl-ethylene diamine is treated with dimethyl sulphate and water, and stearyl-diethylethylene diamine is melted and stirred with dimethyl sulphate.
Patent GB-237753-A (GB)
Title: Improvements in or relating to windows or the like
IPC: E06B3/44
Filed: 1924-09-15
Abstract: 237,753. Mann, Egerton, & Co., Ltd., and Wilford, G. L. Sept.. 15, 1924. Window holders for sliding sashes.-Rattling is prevented between a window and its sash or frame by providing a channelshaped frame or sash 1 having corrugated strips 8, 9, 10 of spring metal. The strip 10 is interposed between and positions the two outer springs. The strip 10 on the web and that on one side of the channel may be replaced by a strip of rubber, felt, &c. Ribs or projections 5 on the sides of the channel engage and hold the side springs in place. The spring may be riveted or otherwise fixed to the frame. When rubber &c. is applied to the web the side springs may be made strong enough to hold the window in any position. The springs are preferably made of brass.
Patent GB-1134517-A (GB)
Title: Inspection method and apparatus for automatic clutch disks
IPC: F16D13/58
Filed: 1966-05-17
Abstract: 1,134,517. Clutches. FICHTEL & SACHS A.G. 17 May, 1966 [19 May, 1965], No. 21785/66. Heading F2C. Apparatus for testing clutch plates comprises a pair of discs 2, 3 between which the plate 1 may be submitted to a pressure substantially equal to the intended working pressure in the engaged clutch, thus enabling the spring characteristics of the friction facings 14 to be determined, and in addition to determine the torque necessary to rotate the plate when the discs are separated by a distance equal to the normal spacing of the flywheel and pressure plate with the clutch released. The plate 1 is mounted on a shaft 4 carried by a fixed platen 20 and the desired axial loading is applied by a second platen 23 to enable a datum reading to be obtained from dial gauges 13. The axial load is then reduced to the desired low value and the extent of movement of disc 3 resulting from expansion of the facings 14 determined. Upon separating the discs 2, 3 to the normal clutchreleased spacing the torque applied to shaft 4 to rotate the plate 1 may be determined manually or by a gauge. The dial gauges 13 are each mounted on a slide 6 with end faces 9, 11 of which the former is held against a reference surface 10 of fixed platen 20 by a lever 12 operated by a solenoid 19. The apparatus may be made automatic by the use of electric gauges, signals and programming circuit.
Patent GB-1511736-A (GB)
Title: Amidino-hydrazone derivatives of benzocycloalkanones
IPC: C07C313/00
Filed: 1975-05-21
Abstract: 1511736 Benzo - cycloalkylidene - aminoguanidines AKZO NV 21 May 1975 [1 June 1974] 21786/75 Heading C2C Novel compounds I and their acid addition salts [in which the dotted lines represent one extra bond starting from the guanidine C atom to one of the adjacent N atoms; A is (CH 2 ) n  (n = 1 to 4) optionally substituted by C 1-4  alkyl; R is C 1-4  alkyl, C 1-4  alkylthio, C 1-4  alkoxy, OH, Hal, CF 3 , NO 2 , NH 2  CH 2 OH, C 1-4  acyloxy or alkylene dioxy, n is 0 to 4 with the proviso that n#2 when R is alkylenedioxy; R 1 , R 4  and R 5  are H or C 1-4 alkyl (with one being absent in view of the presence of the double bond); R 2  and R 3  are H, C 1-4 alkyl on optionally substituted phenyl or phenyl C 1-6 -alkyl group, phenyl fused to a cyclo-aliphatic hydrocarbon of 5 to 8 C atoms, OH or NH 2  and in addition R 2  + R 3  may represent optionally unsaturated C 2-3  alkylene or NR 3 R 4  may represent a 5- or 6-membered heterocyclic ring] are prepared by (1) reacting a compound III with NH 2 -NR 1 #C(#NR 3 R 4 )#NR 2 R 5  or an acid addition salt thereof (2) reacting a compound IV or an acid addition salt thereof in which X is O or S and Ro is C 1-4  alkyl with an amine HNR 3 R 4  or an acid addition salt thereof in which R 3  and R 4  may additionally stand for amino C 2-3  alkyl or amino C 2-3  alkenyl (3) reacting a compound VI with R 2 R 5 N#C(XRo)#NR 3 R 4  or 1 - (1 - Indonylideneamino) - 2 - methyl - isothiourea hydroidide is prepared by reacting indanone with NH 2 -NH-C(=NH)SMe.HI; similarly prepared are 1-(4,6-dimethyl benzocyclobutan - 1 - ylidene) - 2 - methyl or ethyl - isothiourea HBr or HZ. 4,6 - dimethylbenzocyclobutan - 1 - one thiosemi - carbazone is prepared from the corresponding ketone and thiosemicarbazide; the carbazone is 5-alkylated with ethyl bromide. Compounds I have anti-hypertensive biocidal and anti-thrombosis activities and form with a carrier a pharmaceutical composition which may be administered orally, parenterally or topically.
Patent GB-1009782-A (GB)
Title: Improvements in drop box motions for looms
IPC: D03D49/60
Filed: 1962-06-06
Abstract: 1,009,782. Drop box motion for looms. METAPIC S.A. HOLDING LUXEMBOURGEOISE. June 6, 1962 [March 20, 1962], No. 21812, 62. Heading D1E. A four-cell drop box is lifted in the usual way by a floating lever positioned by two cranks (not shown) on shafts 33, 34, movement of the box being effected in 140 degrees rotation of the loom crankshaft to increase the time available for picking and so enable a lower shuttle speed to be used. Connections 14, 15 from the dobby can slide mutilated pinions 38, 40 into the path of gear teeth 30 (one set for each pinion) on a continuously-rotating drum 6 to turn the cranks from one dead centre to the other as required; slots 58 in stationary plates 50 receive dogs 64 on the pinions to lock them when they are not being driven. The mechanism runs in an oil bath.
Patent GB-619974-A (GB)
Title: Improvements in or relating to optical display arrangements for cathode ray oscillographs
IPC: G01R13/28
Filed: 1946-07-22
Abstract: 619,974. Optical apparatus. STANDARD TELEPHONES & CABLES Ltd., CLEAVER, R. F., and SOTHCOTT, P. July 22, 1946, No. 21832. [Class 97 (i)] [Also in Group XL (c)] Two cathode-ray oscillographs mounted with their axes inclined to each other in the same vertical plane and viewed in superposition in a pair of mirrors, at least one of which is light transmitting. As shown, the oscillograph 2 is viewed directly through a light-transmitting mirror 3, and the oscillograph 1 by reflection in this mirror and in an opaque front silvered mirror or polished metal plate 4. A light shield 11 and the casing portion 12 prevent either tube being seen otherwise. To prevent internal reflections in the mirror 3 it is front silvered on orange-yellow glass or glass incorporating an orange-yellow filter layer, the trace of the oscilloscope being orange-yellow and that of the oscilloscope 1 being blue. A blue filter 9 may be placed in front of the oscilloscope 1. A lens 5 may be used to render the oscilloscopes of apparently the same size and a lens 10, which may be negative or positive, to render them of apparently the same curvature. In another arrangement, the mirror 3 is front silvered on an optically polarizing plate, and the filter 9 replaced by a second polarizing plate, the plates being disposed so that the beams reaching the eye from the two oscillographs are polarized at right angles. Specification 496,238, [Group XL], is referred to.
Patent GB-1499848-A (GB)
Title: Recessed oxide n-channel fets
IPC: H01L21/331
Filed: 1975-05-21
Abstract: 1499848 Semi-conductor devices INTERNATIONAL BUSINESS MACHINES CORP 21 May 1975 [28 June 1974] 21855/75 Heading H1K A semi-conductor device comprises a P-type semi-conductor substrate 11, Fig. ID, having an N-channel FET 20-23, Fig. 2, formed therein and isolated by a recessed region 18 which has an interface with the channel region, there being a region 19 containing additional P-type dopant extending from the interface into the channel region to increase its threshold. The device is formed by providing a P-type <100>substrate having a surface protection layer 12, an oxidation barrier 13, an ion-implantation blocking layer 14, and a pattern-defining photoresist (15), Fig. 1A (not shown), exposing and developing the photoresist (15) to provide a pattern on the blocking layer 14, etching the blocking layer 14, the barrier 13 and the protecting layer 12 through the pattern, etching the substrate 11 in the exposed areas with an anisotropic etchant to obtain canted sidewalls 33, ion inplanting the substrate 11 with a P-type dopant beneath the etched-out areas 32 and along the canted sidewalls 33, thermally oxidizing the substrate to provide the recessed oxide areas 18, removing the oxidation barrier 13 and the protecting layer 12, and fabricating the FET in the substrate 11. In another embodiment the FET is formed in a substrate containing a MOS capacitor.
Patent GB-833865-A (GB)
Title: Improved process for the manufacture of artificial threads, fibres and like productsfrom viscose, and the products thus obtained
IPC: D01F2/06
Filed: 1958-07-08
Abstract: Artificial threads, fibres and like products are produced by spinning viscose containing (a) 0.1 to 1% by weight (calculated on the viscose) of polymers, copolymers or block polymers of epoxy alkanes or substitution products thereof, and (b) 15 to 40% by weight, based on the total weight of the epoxyalkane polymer and the amine, of one or more amines of the formula <FORM:0833865/IV (a)/1> in which R1 is an aliphatic chain having at least 8 carbon atoms, n is 2, 3 or 4 and x+y is at least 2, neither x nor y being zero, or quaternary ammonium compounds of these amines, into a spinning bath containing at least 2% by weight of zinc sulphate and, in percentages by weight, having a sulphuric acid content not exceeding 1.3 times the alkali content of the viscose.  The quaternary ammonium compounds may be prepared from the amines by reaction with alkyl chlorides, in particular with methyl and ethyl chlorides.  The spinning bath preferably has a sulphuric acid content of less than 7% by weight.  The threads may be stretched by a one-bath process or in a heated and acidic second bath, the length of the bath in this case being so selected that, at the end of the stretching process, the cellulose xanthate ratio, i.e. the ratio between the number of the xanthate radicals still present and the total number of glucose radicals (C6H10O), is reduced at least to a value of 0.02.  Specification 784,896 also is referred to.
Patent GB-1092241-A (GB)
Title: Underground mining machines
Inventor: NUNN JOHN WILLIAM
IPC: E21C27/18
Filed: 1963-05-31
Abstract: 1,092,241. Mining machines. COAL INDUSTRY (PATENTS) Ltd. Aug. 28, 1964 [May 31, 1963], No. 21912/63. Heading E1F. For advancing a stable hole whilst removing the ripping above the stablehole for the advancing of a roadway a mining machine is provided for acting on the stablehole face with a conveyer extending across the front of the machine transversely of the direction of advance thereof and a rotary disc or drum cutter reciprocable along the conveyer and for acting on the ripping face an arm swingable in a plane at right angles to said direction of advance and carrying a series of cutter discs spaced along the length of the arm.
Patent GB-220016-A (GB)
Abstract: 220,016. Jackson, E. J. Grierson-, and Jackson, W. K. Grierson-. March 8, 1923. Ornamenting; ornamenting fabrics. - A paint or stain adapted to be applied by a brush to finished articles of celluloid and the like, fabrics, leather, &c. comprises pure acetone and soluble or unsoluble colouring-matter, or metal powder, not containing oil, grease, or carbon.