baber/WOPTO huggingface dataset:
Patent GB-984876-A (GB)
Title: Transistor amplifier
IPC: H04N5/14
Filed: 1963-05-10
Abstract: 984,876. Transistor amplifying circuits. FERNSEH G.m.b.H. May 10, 1963 [May 11, 1962], No. 18600/63. Heading H3T. A transistor amplifier comprises a voltageamplifying stage T 2 , Fig. 1, driving an output stage T 1  in common-collector connection which feeds into an output load R L  via a capacitor C. According to the invention, in order to reduce the loss at low frequencies due to the capacitor C, negative feedback is applied to the transistor T 1  by the inclusion of a resistor R 3  in its collector circuit and returning the load resistor R 1  of the amplifying stage T 2  to the collector of the stage T 1 . The emitter-circuit resistor R 2  of the transistor T 1  may be replaced by the emitter collector path of a further transistor T 3 , Fig. 3, in which case the base of this further transistor may be driven by returning it to the cathode of the amplifying transistor T 2 . The transistor T 3  may be of opposite conductivity type to the transistors T 1 , T 2 . In this arrangement the collector circuit resistor R 3  may be used to derive a voltage for automatic gain control, the voltage across this resistor being applied via capacitor C 2  to a rectifier circuit comprising diodes D 1 , D 2  to produce a smoothed voltage across capacitor C 3  which is used to control the gain of preceding stages of the amplifier.
Patent GB-204786-A (GB)
Title: Improvements in or relating to date indicators
IPC: G09D3/04
Filed: 1922-07-07
Abstract: 204,786. Lely, G. P. July 7, 1922. Date indicators.- Comprises a series of cards 2 or a band 27 bearing numbers indicating the day of the month, each number having the names of the seven days of the week printed adjacent to. it on the same side of the card &c. and associated with a pointer or other means to indicate the day. The list of days 13 adjacent to the number " 1 " commences, say, with Thursday, the list adjacent to the number " 2 " commencing with Friday and so on so that the pointer &c. 17, 20 need only be moved once a month. The list of days may be in a straight line 13, Fig. 2, or circle 21, Fig. 8, and the pointer 20 may slide in a slot 24 of similar form, being held by friction or by a clamping screw. A series of holes into which the pointer 17, Fig. 2, is inserted may be employed. or interchangeable marks 18, Fig. 3, or a movable band having an opening 19 may be substituted. A rotary pointer may be pivoted in the glass front of the device with the circular arrangement. The list of days may be arranged on a separate band which may be mounted on the same roll as the band bearing the numbers. Cards 14, 34 or a band bearing the names of the month are provided.
Patent GB-482881-A (GB)
Title: Improved process of vacuum distillation
IPC: B01D3/10
Filed: 1936-07-06
Abstract: Organic substances containing, e.g. vitamins, present only in very small proportions in raw materials, are distilled by high-vacuum, short-path distillation after admixture with a synthetic mixture compounded so as to give a constant or known amount of distillate for each increase in temperature.  The synthetic mixture may be obtained by blending a number of fractions in a ratio other than that in which they are obtained by distillation.  The mixture may comprise a number of glycerides which are blended and re-blended until the final product yields an equal volume of distillate for each equal increment of uniformly increasing temperature.  Specification 479,802 is referred to.
Patent GB-260551-A (GB)
Title: Device for improving the temperature error in electricity meters
IPC: G01R11/185
Filed: 1926-07-27
Abstract: 260,551. Landis et Gyr Soc. Anon. Oct. 30, 1925, [Convention date]. Electric and magnetic.-In order to decrease the temperature error of an electricity meter, at least one member on which the braking action is exerted consists of aluminium alloyed with copper, silicon, and iron. The invention is shown applied to an induction motor meter in which the magnetic system 1 drives an aluminium or copper disc 2. On the shaft 3 is also mounted a disc, 4 acted on by the brake magnet 5. This disc consists of an aluminium alloy containing for example 96.25 per cent of aluminium, 2.82, per cent of copper. 0.70 per cent of silicon, and 0.23 per cent of iron. It is stated that the resistance of such a disc increases by 0.00284 per cent per degree rise in temperature as compared with 0.0039 per cent for an aluminium disc. In polyphase meters with a number of driving systems there mav be or more such brake discs or drums acted on by one or more brake magnets. In direct-current meters with drum armatures, the usual brake disc is replaced by one formed of the above-described alloy.
Patent GB-1468207-A (GB)
Title: Exercise device
IPC: A63B21/00
Filed: 1974-04-30
Abstract: 1468207 Full-face disc brakes J D BEEDING 30 April 1974 18890/74 Heading F2E [Also in Divisions A5-A6 and G1] An exercising device 10 (Figs. 1, 3, 4) includes a spool 18 which is coupled for rotation with a neighbouring disc 23 by means of a series of angularly spaced raceways 35 which are provided in the inboard faces of both the spool 18 and the disc 23, the raceways 35 being in alignment so that balls 34 are held between them. When the spool 18 is rotated in one direction (Fig. 6), the balls 34 move in the raceways 35 to cause an axial spacing apart of the disc 23 from the spool 18, the disc 23 being forced into frictional engagement with braking element 25 &c. Thus, as increased force is applied to rotate the spool 18, so is the resistance effected by the braking elements 25 &c. increased. In the preferred embodiment, the force is applied by pulling on a handle 13 which is attached at one end of a flexible line 14, the line being wound several times around the spool 18 in a groove 20 and being finally affixed in an opening 21 of the groove. The braking elements for engagement with the disc 23 comprise a pair of annular frictional plates 26 (secured to disc 23) and 25 (secured to a second disc 24), the rotational movement of disc 24 being restricted by a ball 37 attached to it at 36, the ball 37 being seated in the upper end of a spiral spring 38. The disc 24 also carries a protuberance 40 which extends through a slot formed by arms 41 and 42 extending horizontally from the depending arm portion 43 of an indicator needle 44 pivotally secured at 45 to the top of the housing 11 of the device. A scale 46 is provided to indicate the force applied by the exerciser. When the force on the handle 13 is relaxed, the balls 34 withdraw to the deepest part of the raceways 35, the braking force is released, and the device is returned to its starting position by means of a rewind spring 27.
Patent GB-584016-A (GB)
Title: Improvements in or relating to tools having encased hard inserts
IPC: B21C3/18
Filed: 1944-10-03
Abstract: 584,016. Making engineers' tools. KRYSZEK, S., and HARD ALLOYS, Ltd. Oct. 3, 1944, No. 18924. [Classes 83 (ii) and 83 (iv)] Building up parts of articles by spraying.-A tool, e.g. a drawing die, comprising an insert 1 of hard material, e.g. tungsten carbide, encased in a metallic coating 2 is made by spraying the coating metal onto the preformed insert. The coating 2 may comprise stainless steel or other high tensile steel and be machined to the desired shape and size, e.g. by grinding or turning with a carbide or diamond tool. To get a stronger enclosure the encased insert, after grinding or machining if required, may be shrunk into a turned casing or other holder 3. The coating 2 may extend over both ends of the insert and may include one or more outwardly extending flanges &c.
Patent GB-239834-A (GB)
Title: Improvements in packings for axle boxes
IPC: B61F15/22
Filed: 1925-07-25
Abstract: 239,834. Kranenberg & Schmitz. Sept. 11, 1924, [Convention date]. Void [Published under Sect. 91 of the Act]. Oil, retaining; dust, excluding.-An axlebox shield comprises two dished telescopically engaging shells a, b, pressed apart by springs k. A felt ring c secured to the shell b excludes dust and oil leakage from the axle box is prevented by a resilient expansible ring d secured so as to permit radial movement thereof to the inside of the shell a. As shown, the ring d consists of a plurality of segments having a tongue and groove connection with each other and held round the axle by a spring g. The ring d has a shoulder e with a groove h in which a spring ring i is snapped. The ring i leads the oil scraped from the axle by the ring d back into the lubricating tray in the axle-box.
Patent GB-904144-A (GB)
Title: Improvements in or relating to winding machines
Inventor: KELLER KARL
IPC: B65H23/198
Filed: 1959-06-04
Abstract: 904,144. Winding webs. KAMPF, E., KAMPF, H., and KAMPF, B., [trading as KAMPF MASCHINENFABRIK o.H.G., ERWIN]. June 4, 1959, No. 19080/59. Class 100 (1). [Also in Group XXXV] In a winding machine, electric motors 39, 40, drive shafts 1 to which reels 43 are coupled by means of friction clutches 7, the degree of coupling being varied by electric motors 36, 37. A regulator 38 compares the currents taken by the motors 39, 40, with a reference current provided by source 41, and the error signal is used to control the adjusting motors 36, 37. In this manner, the degree of coupling provided by the clutches 7 is increased or decreased when the winding motor current is decreased or increased, so that the tension of the material being wound upon the reels 43 is kept substantially constant despite the increasing diameter of the roll as the winding operation proceeds. Alternatively, variations in the tension of the material being wound may take place according to a set programme, a programme-regulator 42 being provided for this purpose.
Patent GB-863384-A (GB)
Title: Improvements in, or relating to, rotary cams, and to electric switches adapted to beoperated by such cams
Inventor: ALDOUS ARNOLD VICTOR
IPC: F16H53/04
Filed: 1958-06-14
Abstract: 863,384. Interrupters. AUTOMATIC ELECTRICAL CONTROL CO. Ltd. Sept. 14, 1959 [June 14, 1958], No. 19103/58. Class 38 (5). [Also in Group XXIV] In a cam assembly for the sequential operation of a series of electric switches each cam comprises a pair of annular plate members 21, 22 formed with internal teeth or serrations engaging corresponding external formations on a bush 17 keyed to the cam-shaft 6. The pairs of plates are held in contact by coil-springs 20 surrounding spacing collars 19, the ends of each spring engaging a plate 21 and a flange ring 18 which may be separate from or integral with the bush 17. The arrangement enables the angular setting of any cam in relation to the shaft to be adjusted and also, by relative angular adjustment of the individual members 21, 22, permits the cam contour 21a, 22a to be modified to vary the period for which the associated switch is closed. As shown, the switches 12 are carried on a cross-shaft 13, each one having a button 31 operated by a spring-arm 32 carrying at one end a roller 34 engageable by a cam lobe. Each switch is provided with a spring-loaded stud 37 whose lower end engages a catch-bar 39 held in retaining-slots by springs 43. A nut 41 at the upper end of the stud 37 permits angular adjustment of the associated switch about spindle 13.
Patent GB-381222-A (GB)
Title: Improvements in or relating to heaters for vehicle bodies
IPC: B60H1/00
Filed: 1931-07-02
Abstract: 381,222. Jointing pipes to headers. CLAYTON DEWANDRE CO., Ltd., Titanic Works, Lincoin, and PAYNE, M., 50, Hook Road, Surbiton, Surrey. July 2, 1931, No. 19125. [Glass 99 (i).] A tubular heat radiator for use in vehicle bodies or in rooms or buildings comprises a pair of headers 2 formed with pipe connections 4 adapted to pass through a wall or floor, and a straight gilled tube 1 of oval or other cross section clamped between the headers by means of a tie rod 6 provided with nuts 7. The headers are each provided with a socket 3 containing a rubber ring 8 to provide a tight joint having some resiliency. Specification 371,879, [Group XXXI], is referred to.
Patent GB-837495-A (GB)
Title: Electro-plating apparatus
Inventor: RECKLESS EDWARD RICHARD
IPC: C25D17/20
Filed: 1957-06-18
Abstract: 837,495. Electroplating barrels. 'CANNING & CO. Ltd., W. June 17, 1958 [June 18, 1957], No. 19138/57. Class 41. An electroplating apparatus comprises a cylindrical barrel 5 rotatable about its axis which is horizontal and having an opening 6 at one side, a pivotal flap 7 on the barrel 5 adapted to close the opening 6, a driving member, e.g. a spur pinion 9, rotatable about the barrel axis and permitted limited angular movement relative to the barrel 5, and means carried by the flap 7, e.g. a bracket 15, engaging a part rotatable with the pinion 9, whereby rotation of the pinion 9 in one direction causes the flap 7 to close the opening 6, and rotation of the pinion 9 in the opposite direction causes the flap 7 to open the opening 6. The bracket 15 has a roller 14 which engages a slot in an abutment, or between two abutments 11, on the pinion 9 which is driven through gearing 10 by an electric motor, the pinion 9, on being rotated, completing a predetermined angular movement before engagement of one or other of the abutments 11 with one of the shoulders of a gap 12 in a flange 13 on the barrel 5, thus transmitting rotation to the barrel 5. The barrel is submerged in a vat and has vanes 16 (Fig. 1, not shown). A cam 18 on the barrel actuates a switch 17 which opens a holding circuit of a relay for the electric motor after actuation of a manual switch to stop the barrel in a position with the opening 6 uppermost.
Patent GB-264404-A (GB)
Title: Improvements in machines for sewing, open-work and embroidery, with or without cranks
IPC: D05B3/02
Filed: 1926-08-03
Abstract: 264,404. Soc. Anon. des Anciens Etablissements R. CornÞly et Cie. March 23, 1926, [Convention, date]. Needles, vibrating laterally.-In a mechanism for laterally vibrating a pair of needles in an openwork or embroidery machine, the pivotally mounted needle holders 16, 17 by which the needles are connected to the needle-bar 18 are linked by sliding pivot connections c, d to a parallel linkwork 12 - - 15 of which one point e is fixed to the frame and another 20 is moved by a rod gear-driven from the main shaft. The actuating cam 4 is connected to the rod 9 through swinging levers 6. 7 and a link 8 displaceable in a sector r for purposes of adjustment. In a modification, the link 9 is connected to the bars 16, 17, as shown in Fig. 6, through intermediate parallel linkage members K, P, L, 9<1>, and M having fixed pivot points at e, e', e<11>. Specification 221,776 is referred to.
Patent GB-183135-A (GB)
Title: Improvements in the transmission and reproduction of photographic images by means of the usual telegraphic, telephonic and radiotelegraphic apparatus
IPC: H04N1/23
Filed: 1922-07-13
Abstract: 183,135. Ellero, U., and Ellero, P. July 18, 1921, [Convention date]. Types.-In a system for transmitting and reproducing pictures &c., in which the picture is divided into a number of elements, and the estimated shade of each element is transmitted by telegraph, telephone, &c., by the use of a code, from which the receiving operator is able to reconstruct the picture &c., the code is arranged to describe the intensity and arrangement of tints in each element, and the picture is recomposed by means of types of such size and printed at such distances as to cover the whole sheet of paper &c., and which, by suitably inked ribbons, pads, &c., give different intensities of tint. A series of square types is described, in which, in addition to providing for the whole element being of uniform tint, provision is made for different arrangements of two tints within the area of a picture element. The types are in pairs, each member of the pair being adapted to imprint the space in an element left blank by the other. The types described are obtained by dividing the square element by horizontal, vertical, or diagonal lines. In the two pairs of types illustrated, the members of the first pair. are adapted to imprint the required tints on the upper and lower halves of the element respectively, and of the second pair a central horizontal band, and the upper and lower marginal portions, respectively. The printing is preferably done by a modified typewriter having the sizes of type, and letter and line-shift movements properly correlated, and having ribbons with the required tints, say two multiple ribbons with three tints on each.
Patent GB-584021-A (GB)
Title: Improvements in torque-transmission mechanism
IPC: B64D27/00
Filed: 1944-10-06
Abstract: 584,021. Propelling ships and aircraft. LACHMANN, G. V., and SUPPANCIC, G. O. Oct. 6, 1944, No. 19217. [Classes 4 and 114] [Also in Group XXVII] Power plant for aircraft, ships or motor boats comprises a plurality of power-units spaced widely apart and located symmetrically with relation to the centre-line of the aircraft or vessel, the axes of the units being parallel, non- parallel or aligned, a primary driving shaft transmitting torque from each unit at a high rate of angular velocity to a reduction gear, an output shaft transmitting torque from the reduction gear at a reduced rate of angular velocity to an airscrew or equivalent propulsion device of the constant-speed type having automatic pitch regulation, the reduction gear being situated at or near the propulsion device, and one-way clutches or equivalent over-running devices associated with the reduction gear whereby the output shaft may be driven by any of the power-units alone. The airscrews or propellers may be single or contra-rotating. Fig. 1 shows an arrangement comprising two non-parallel power units 10, 11, the output shaft 12 of each driving a bevel pinion 26 through a one-way clutch 20, the pinion 26 engaging a pinion 28 on a shaft 29 carrying a pinion 32 meshing with an idler pinion 33 gearing with a pinion 35 at the inboard end of a common output shaft 14. In the arrangement shown in Fig. 4, two parallel power units 10, 11 drive two propeller shafts 14 which are inter-connected by a cross-shaft 46 so that either engine will drive both propellers in the event of the other engine failing. Fig. 6 shows a further arrangement in which four engines drive four single airs crews or propellers interconnected by cross-shafts 46, 51, and Fig. 10 one in which four engines drive two single and a pair of contra-rotating airscrews or propellers interconnected by shafts 55. Numerous additional arrangements of engines and propollere are described, Specification 536,057 is referred to.
Patent GB-1163027-A (GB)
Title: An Electrical current-limiting Arrangement
IPC: H01L39/20
Filed: 1967-04-26
Abstract: 1,163,027. Inductors; superconductor devices. SIEMENS A.G. 26 April, 1967 [26 April, 1966], No. 19319/67. Headings H1K and H1T. An electrical current-limiting arrangement comprises two parallel-connected windings 1, 2 wound to produce opposed magnetic fields, one of the windings 1, consisting entirely or partially of a superconductive material and having a critical current strength higher than the normal operating current of the winding, the windings 1, 2 being such that under normal operating current the resultant of the opposed fields is substantially zero and that when the critical current strength of the winding 1 is exceeded the winding 1 changes from its superconducting to a normally conducting state whereby the resultant of the opposed fields assumes a finite value and the inductance of the arrangement is increased. The other winding 2 may be of pure copper or aluminium or a superconductor. The windings may be housed in a cryo-vessel of a composite glass-fibre-plastics material, partially filled with liquid helium. In a further embodiment (Fig. 2, not shown), the windings may be of disc-form having alternating parts separated by thermal insulation (9), the winding 2 being cooled by the same coolant as winding 1 and operating at a higher temperature (e.g. 20 K.) than the winding 1 (e.g. 4.2-8 K.). The winding 1 may lie as far as possible in the field of the winding 2.
Patent GB-1354761-A (GB)
Title: Stabilized liquid enzyme preparations
IPC: A61Q19/10
Filed: 1971-06-08
Abstract: 1354761 Stabilized enzyme compositions HENKEL & CIE GmbH 8 June 1971 [31 July 1970 30 Nov 1970] 19356/71 Heading C3H [Also in Division C5] A stabilized liquid enzyme composition comprises (A) 100-1% by wt. of an enzyme component which is an aqueous solution of (1) proteases and/or amylases in such an amount that the activity of the final composition is 1000-800,000 protease units/ml or 10 to 10,000 SKBE/ml; (2) 1-45% by wt. of at least one water soluble organic compound of type (a)-(d) wherein type (a) may be dito hexahydrydric aliphatic alcohols with not more than 8 carbon atoms per molecule and/or polyethers of these polyhydric alcohols and/or part ethers with monohydric C 1 -C 4  alcohols; type (b) may be carboxylic acid- or phosphoric acid-(alkyl or -hydroxyalkyl-) amides containing 2-8 carbon atoms per molecule or alkyl-substituted ureas in which ureas each alkyl group contains 1-4 carbon atoms or has been wholly or partly replaced by a C 2 -C 4  mono- or dihydroxy alkyl residue; type (c) may be heterocyclic compounds optionally containing hydroxyl groups with not more than 8 carbon atoms in the molecule with a hetero-oxygen and/or hetero-nitrogen atom; type (d) may be dialkylsulphoxides with 1-4 carbon atoms in each of the alkyl radicals: (3) 1-30% by weight of one of the water soluble organic compounds (e) to (g) wherein type (e) may be polyfunctional aliphatic or alicyclic amines with not more than 8 carbon atoms per hydrocarbon residue, which contain as further functional groups at least one further basic nitrogen and/or hydroxyl group optionally etherified with a C 1 -C 4  alcohol; type (f) may be compounds with hetrocyclic nitrogen or heterocyclic oxygen atoms containing not more than 8 carbon atoms in the molecule and optionally containing hydroxyalkyl groups; type (g) may be carboxylic acid or phosphoric acid alkyl or hydroxy alkyl amides containing 2-8 carbon atoms in the molecule or alkyl-substituted ureas in which ureas each alkyl group contains 1-4 carbon atoms or has been wholly or partly replaced by a C 2 -C 4  mono- or dihydroxy residue; with the proviso that a compound of group 2b can only be combined with a compound of groups 3e or 3f and a compound of group 2c can only be combined with a compound of groups 3e or 3g; (4) 0-30% by weight of a carboxylic acid or hydroxycarboxylic acid with not more than 6 carbon atoms or other acid reacting substance or a water soluble salt of these acids with organic or inorganic cations; (B) 0-99% by weight of other customary ingredients of washing and cleaning compositions, the compositions having a pH of 3-10.
Patent GB-440653-A (GB)
Title: Improvements in apparatus for the treatment of threads in crepe or other twisting operations
IPC: D02G1/00
Filed: 1934-06-30
Abstract: <PICT:0440653/IV/1> Apparatus for steaming threads in cr<\>zepe and other twisting operations and particularly suitable for use in the process of twisting cellulose acetate threads in the presence of wet steam as described in Specifications 437,019 and 438,590, [both in Group IX], comprises hollow members 10 offset from a chamber 9, to which steam is supplied by a pipe 17 and water drained by a pipe 18. Twisting-spindles 4 are associated with each offset, the threads passing therefrom through guides 8, 11.  The guide 8 is provided with a rim to prevent escape of condensed steam.
Patent GB-1534043-A (GB)
Title: Coating composition
IPC: E04D13/00
Filed: 1976-05-11
Abstract: 1534043 Coating compositions SKB COATINGS Ltd 11 Aug 1977 [11 May 1976] 19410/76 Heading C3M Coating compositions comprise (1) as first binder an aqueous emulsion of an acrylic copolymer having a glass transition temperature of -55‹ to -40‹C., (2) as second binder an aqueous emulsion of an acrylic copolymer having a glass transition temperature of +5‹ to + 15‹C. and (3) a finely divided extender material, e.g. calcium carbonate.