baber/WOPTO huggingface dataset:
Patent GB-1480785-A (GB)
Title: Electromagnetic voltage regulators for the control of the charging of accumulator batteries of motor vehicles
IPC: H02J7/22
Filed: 1974-09-11
Abstract: 1480785 Automatic voltage control DUCELLIER & CIE 11 Sept 1974 [25 Oct 1973] 39697/74 Heading G3R A vibrating contact voltage regulator for a generator charging a battery includes devices which compensate for the effects of ambient temperature and temperature increase at the contacts due to wear and oxidization. As shown in Fig. 1, a battery 3 is charged by a generator 1 with an excitation winding 2 supplied with current by a regulator 5. The regulator includes contacts 7, 8 controlled by a winding 6 such that when the contacts are closed current is supplied through a coil 12, and when the contacts are open a reduced current flows through a regulating resistor 10 to the excitation winding 2. Control winding 6 is connected in series with a ballast resistor 14. An NTC chemistor 15 compensates for ambient temperature variations in the regulator casing, and a PTC thermistor 16 mounted adjacent the contacts 7, 8 corrects over-compensation by responding to the contact temperature. In another embodiment, Fig. 2 (not shown), the PTC thermistor 16 is replaced by a second NTC thermistor (17) connected in parallel with the control winding 6. The ambient temperature variations may alternatively be compensated by a bi-metal strip.
Patent GB-1421509-A (GB)
Title: Recorder
IPC: G01D15/24
Filed: 1974-09-12
Abstract: 1421509 Recording apparatus YOKOGAWA ELECTRIC WORKS Ltd 12 Sept 1974 [25 Oct 1973] 39806/74 HeadingGlJ In a strip chart recorder having a flat bed 2 on which is mounted a chart feed wheel 23 for feeding a chart from a chart store 4 in the recorder casing 1, over the bed 2 while a recording is made on the chart by pens 3, the flat bed 2 is slidable in the casing 1 in the chart feed direction from a position in which the chart feed wheel 23 drivingly engaged the chart, Fig. 2, to a position allowing ready access to the chart store 4 Fig. 5. Rollers 241 at the edges of the flat bed 2 run on rails in the sides of the casing 1. Spring-loaded latches 22 on the flat bed 2 engage pins 222 in the casing to retain the bed in its Fig. 2 position. The feed wheel 23 comprises a support part 230 in which is rotatably supported a shaft 233 carrying chart-engaging sprockets 232 and a gear-wheel 231 engageable with a motor driven pinion 12 of the recorder. The chart store may be in folded form, as shown, or in a roll the shaft of which is supportable in slots m in the casing 1 sides. A tension roller 11 is provided for the chart.
Patent GB-1097193-A (GB)
Title: Improvements relating to thermostatically-controlled electric immersion heaters
IPC: A47J27/21
Filed: 1965-09-18
Abstract: 1,097,193. Thermal switches. D. H. HADEN. Sept. 5, 1966 [Sept. 18, 1965], No. 39884/65. Heading H2B. An electric immersion heater of the kind comprising a sheathed heating element I mounted in a head 4 intended to be mounted in the wall of a veseel such as an electric kettle has a concave-convex bi-metallic disc 17 located within a recess 18 in the inside of the base 3 of head 4 and operatively connected to a switch 9 carried by the end closure member 6 of head 4, the disc 17, when a given temperature is reached, being deflected over dead-centre with a snap-action to open, or allow to open, the switch. As shown, the movement of disc 17 is transmitted by rod 20 to resilient blade 9 carrying movable contact 10 engaging fixed contact 11. In an alternative embodiment, Fig. 8 (not shown), in the unoperated condition disc 17 has its convex side facing the contacts and holds the contacts closed against the resilience of blade 9 which opens the contacts when allowed to do so by disc 17 snapping over.
Patent GB-1197657-A (GB)
Title: Electrical Circuit.
IPC: H03G11/06
Filed: 1968-08-21
Abstract: 1,197,657. Transistor amplifier; frequency discriminator. RCA CORPORATION. 21 Aug., 1968 [28 Aug., 19671, No. 39899/68. Headings H3A and H3T. An output transistor 152, for example in an f.m. channel 10, is connectable to an unregulated supply 158 at a terminal 96, for example a supply for a valve 100, and to prevent the collector breakdown voltage of the transistor 152 being exceeded, the quiescent collector voltage is stabilized by feedback from the collector via a potential divider 160; 162 (and resistors 164, 166) to the base circuit, the transistor 152, the divider 160, 162 and the terminal 96 all being in the same integrated circuit, 10. A second transistor 150 completes the base circuit. A f.m. signal at 16 is coupled to a tuned circuit 20 and to a terminal 12 of the circuit clip 10, which carries two amplifier stages 24, 26, 28 and 40, 42, 44, a limiter 56, 58, 60 and a discriminator 74. Voltage supplies to the transistors 24, 26, 28, 40 and 42 are derived from a transistor 112, and to the transistors 44, 56, 58 from a transistor 114, the transistors 112, 114 having their collectors connected to a positive supply terminal 104, and their base potentials regulated by the emitter-base breakdown voltage of a transistor 108 connected to the positive terminal 104 and to an earth terminal 106. Transistors 116, 118 are reciprocably coupled to produce a stable bias voltage for the stages. External to the clip are the discriminator drive transformer 68, and the volume control circuit 88, &c. as well as decoupling capacitors 130, 138, the tuned input circuit, and the output resistor 156 and capacitor 98.
Patent GB-1484931-A (GB)
Title: Supply circuit
IPC: H01S3/097
Filed: 1974-09-13
Abstract: 1484931 Lasers XEROX CORP 13 Sept 1974 39982/74 Heading H1C In a direct current gas discharge laser which requires a prolonged warming up period before operating at an elevated temperature, the laser is maintained at or near the operating temperature during inoperative periods by substituting a discharge-sustaining A.C. supply for the direct current excitation. The laser 10 may comprise helium-cadmium operating at a temperature of about 240‹ C., the gas discharge electrodes 11, 12 being alternatively connected to a D.C. supply 15 and an A.C. supply 13 by a changeover switch 16, a decoupling condenser 14 being provided. For alternate operating periods the D.C. supply polarity may be reversed.
Patent GB-1283735-A (GB)
Title: Octal base number system calculator
Inventor: WYATT PHILIP J
IPC: G06G1/00
Filed: 1969-08-11
Abstract: 1283735 Octal base number system slide rules SCIENCE SPECTRUM 11 Aug 1969 [3 July 1969] 40054/69 Heading G4B A slide rule has a scale formulated in accordance with an octal base number system and an indicator movable over the scale for performing numerical calculations in the octal base number system. The rule may be straight. As shown, the rule is circular and includes a number of concentric scales on each of its faces. Included are the scales normally found on a slide rule, only based on the octal number system. The outer scale CO, for example, is octal-logarithmic and its basic sub-divisions correspond to the octal number ranges 1 to 2, 2 to 3 ... 6 to 7 and 7 to 10. A scale 2S, 2S 1 , 2S 2  of numbers M is also provided, representing values of 2<SP>M</SP> in octal. Also included are some scales based on the decimal number system e.g. decimal logarithmic scale C. Calculations involving conversion from octal to decimal numbers and vice versa are possible. The indicator associated with each face of the rule comprises two arms 12, 14 pivoted at 20. When arm 12 is rotated about 20, arm 14 rotates through a corresponding angle, but arm 12 remains stationary when arm 14 is moved.
Patent GB-1428047-A (GB)
Title: Method of measuring parameters of complex electric circuit  and device for effecting same
IPC: G01R27/02
Filed: 1973-08-29
Abstract: 1428047 Measuring resistance; capacitance and inductance PENZENSKY POLITEKNNICHESKY INSTITUT 29 Aug 1973 40706/73 Heading G1U A method of measuring circuit parameters involves several alternatives to measure series or parallel combinations of resistance with capacitance or inductance. To measure a parallel R-L circuit 15, 16 a constant voltage 8 (-E o ) is applied for a time To to the circuit input via gate 3 operated by control 9 from an external trigger signal 42. The current through the circuit is converted to a voltage via the resistive feedback of amplifier 18 and compared to two reference voltages derived from voltage source 32 (+E o ) by potentiometers 24, 25. Comparators 22, 23 provide output pulses at the instants the amplifier output equals these reference voltages. The pulses operate gate 29 via bi-stable 13 allowing counter 31 to measure the time interval by clock pulses 27. After To, delay 14 provides a pulse which closes gate 3 and opens 2, 28 reversing the input polarity and enabling counter 30. Comparator 21 detects when the circuit current is zero, opens gate 4 and closes 2, 28, thereby earthing the circuit input and stopping counter 30. Digital voltmeter 19 is also enabled to measure the circuit output current. From the two measured times and the measured current, the parameters R, L and the circuit time constant can be directly determined. Other embodiments are described for measuring parallel R-C, series R-L and R-C Figs. 2-4 respectively (not shown). The modifications involve in (Fig. 2) replacing resistor 17 with capacitive feedback thereby monitoring the current integral; in (Fig. 3) placing the circuit, under test in the amplifier feedback and using an input reference inductance thereby providing a linearly changing input current; in (Fig. 4) replacing the reference inductance by a resistance to provide a constant current input. In (Figs. 3 and 4) the circuit output voltage is monitored.
Patent GB-991165-A (GB)
Title: Improvements relating to dry shavers
Inventor: SANDERS NORMAN THOMAS
IPC: B26B19/28
Filed: 1960-11-28
Abstract: 991,165. Dry shavers. NEEDLE INDUSTRIES Ltd. Nov. 27, 1961 [Nov. 28, 1960], No. 40741/60. Heading B4B. [Also in Division H2] In a dry shaver, having a cutter moved over the inner surface of a face-contacting foil or plate by an electric motor fed by a battery in a chamber in the shaver casing, the speed of the motor and hence, the speed of operation of the cutting parts is varied by varying the voltage supplied to the motor by switch means whereby all of the cells of the battery are connected in series or the cells are divided in parallely-connected groups, the cells in each group being connected in series with each other, depending on the position occupied by a manually operated selector member of the switch. A cutting head 18 which may be of the kind disclosed in Specification 984,791 forms with the motor 14, a unit axially slidable by pressure against the skin against the action of a spring 19 into a chamber in the upper casing part 11 to close switch contacts 29, 30 to operate the motor as disclosed in Specification 991,166. Battery cells ABCD are mounted in a box 45 incorporating a cradle 47 in the lower part 10 of the casing. Output conductors 48, 49 co-operate with contacts 50, 51 of selector switch and extend along grooves in the base and sides of the easing to connect with conductor strips 28, 41 to the motor and connectors 1, 8 which are in contact with the positive pole of cell A and the negative pole of cell D. When the cells are required in series for high-speed operation, connection is made from terminal 1, through cell A, terminal 2, conductor 52, terminal 3, cell B, terminal 4, input conductor 53, switch contacts 54, 55 by a bridging member, input conductor 56, terminal 5, cell C, terminal 6, conductor 57, terminals 7, 8 to conductor 48. When a seriesparallel arrangement is required for slower, closer shaving the connection between contacts 54, 55 is broken and contacts 50, 54 connected to each other by movement of the selector switch member 58 which has a finger piece 59 protruding through an aperture in the bottom wall of the casing part 10 and includes a plate 61 slidably mounted in an internal recess between flanges 62 and carrying bridging strips 63, 64 which, for series-parallel connection, engage contacts, 65, 66 and 67, 68 respectively. For series connection only, the strip 64 is employed to engage contacts 54, 55 both contacts of the strip 63 engaging the conductor 48.
Patent GB-1327422-A (GB)
Title: Frozen food packages
IPC: G03G15/08
Filed: 1970-08-25
Abstract: 1327422 Frozen food package F D MONTGOMERY 25 Aug 1970 [25 Aug 1969] 40819/ 70 Heading A2D A substantially air-tight food package comprises frozen cooked food pieces which are free of excess water and which are arranged in a container with voids between them so that a hot fluid can move through the voids and quickly thaw the food pieces when they are required to be eaten, and one or more dry or frozen additives. The food pieces may be meat, fish, fowl, vegetables or mixtures thereof. Additives which may be present in the package are starch, flour, salt, pepper, shortening and herbs. The additive may form a sauce when water is added to the container. The package may be prepared by a process comprising the steps of cooking the food to remove free water, cutting the food into desired pieces before and/or after cooking, freezing the pieces, arranging the pieces in a container so as to leave voids between them, adding one or more additives to the container and closing the container.
Patent GB-1158866-A (GB)
Title: A Process for Preparing Steroids of 1,4-diene3,17-dione Structure
IPC: C12P33/00
Filed: 1966-09-13
Abstract: 1,158,866. Steroids. RICHTER GEDEON VEGYESZETI GYAR R.T. 13 Sept., 1966 [23 Sept., 1965], No. 40942/66. Heading C2U. Androsta - 1,4 - diene - 3,17 - diones are obtained in a process which comprises treating a steroid having a 17#-side chain or a 17-ketoandrostane structure under aerobic fermentation conditions, in the presence of 8-hydroxyquinoline, with the cells of Mycobacterium phlei (No. 29 National Institute for Public Health in Budapest). Suitable starting steroids are cholesterol, ergosterol, #-sitosterol or stigmasterol.
Patent GB-877851-A (GB)
Title: Improvements in ancillary equipment for vehicle lifts
Inventor: LIGHTOWLER LESLIE ERNEST
IPC: B60S13/00
Filed: 1958-12-23
Abstract: 877,851. Hand trucks. LAYCOCK ENGINEERING Ltd. Dec. 8, 1959 [Dec. 23, 1958], No. 41401/58. Class 108(1). A mobile support for a vehicle comprises a pair of side frames 11 hinged at 20 to an end frame 17. Support members 38 are secured between the members 12 forming the side frames 11 and carry extensible members 33 to support the raised vehicle. A further pair of supports 32 is movably mounted between the members 11 and these supports carry further members 33. Screw jacks controlled by the hand wheels 29 engage the ground to prevent movement of the truck. To enable the truck to be moved under a car supported on a hydraulic ram the end gate 39 is removable. Specification 868,292 is referred to.
Patent GB-960086-A (GB)
Title: Improved process for the polymerisation of olefines
IPC: C08F10/00
Filed: 1962-11-02
Abstract: Polymers of olefines are made by polymerizing an olefine in the presence of a catalyst comprising (a) a metal hydride or organometallic compound of a metal selected from Pb, Sn, Ge, Si, As, Sb, or Bi, (b) a halide of an element selected from Ti, Zr, Hf, Th, V, Nb, Ta, Pa, Cr, Mo, W, or U, (c) a halide of an element selected from B, Al, Sc, Ga, Y, In, La or Tl, and (d) an amine, a heterocyclic nitrogen compound, or a quaternary ammonium salt. Specified (d) components are aniline, pyridine, di-N-propylamine, naphthylamine, N,N1-diphenyl-para-phenylene diamine, hexylamine, symmetrical diphenylguanidine, N-N1-diethylparaphenylene diamine, dimethylbenzyllauryl-, trimethylbenzyl-, dodecyltrimethyl- or octadecyltrimethylammonium chloride, and tetrabutyl ammonium iodide.  The exemplified (a) component is Sn(C4H9)4, the (b) component TiCl4, and the (c) component AlCl3.  The olefine may be ethylene or propylene.  Specifications 860,407, 895,597 and 896,509 are referred to.
Patent GB-1395654-A (GB)
Title: Inverted tripod for supporting a form-work for concrete moulding
IPC: E04G11/48
Filed: 1972-09-07
Abstract: 1395654 Support for ceiling shuttering SOC POUR L'INDUSTRIALISATION DU MATERIEL 7 Sept 1972 [1 June 1972] 41598/ 72 Heading E1S A support for ceiling or floor shuttering comprises three tubular struts 1, 2, (3) (the last not visible in Fig 1) diverging upwardly from a base 4, the struts being divided at their mid-points and hinged together so that the support may be folded in half (as shown in broken lines). The ends of the three lower half-struts and the three upper half-struts are each connected by a respective L-shaped plate 35, 36, and alternative hinges (37), 38 are provided at the ends of the L-shaped plates, a hinge pin 39 being inserted in a selected one of the hinges and the other hinge being unconnected, so that folding may take place about one of two perpendicular horizontal axes. The support has a screw-jack 5 and a vertically adjustable roller 14 at is foot, and has plates 18, (19), 20 at the upper ends of the struts for suporting horizontal shuttering beams, these plates having fastening devices (Figs 4 and 5, not shown) for securing to the beams.
Patent GB-423811-A (GB)
Abstract: 423,811. Signal lamps and lenses. NAAMLOOZE VENNOOTSCHAP MACHINERIEEN - EN APPARATEN FABRIEKEN, 30, Croeselaan, Utrecht, Holland. Sept. 19, 1933, Nos. 25922 and 25923. Convention dates, Oct. 19, 1932 and Nov. 10, 1932. [Classes 75 (ii) and 75 (iv)] A lens for a signal lamp comprises a converging lens part 1, shown in horizontal section in Fig. 2, abutting adjacent its optical axis a converging girdle lens 2. The part 1 gives an intense beam over a short horizontal range and the part 2 a lower power beam over an extended horizontal range. Combined with the lens may be a parabolic reflector extending only in front of the light source and a diffusing glass 4 which may be convex to prevent false indications from external light sources. In modifications the lens parts are of the Fresnel type ; Figs. 3 and 4 show horizontal section and rear view respectively of one form and Fig. 6 a horizontal section of the other. The ribs on the girdle lens part may provide some amount of vertical diffusion and crossing diffusing ribs may be added.
Patent GB-1175254-A (GB)
Title: Polyester Wire Enamels.
IPC: H01B3/42
Filed: 1967-09-20
Abstract: 1,175,254. Polyester wire enamels. GENERAL ELECTRIC CO. 20 Sept., 1967 [10 Oct., 1966], No. 42752/67. Heading C3R. A wire enamel having a solids content of 35 to 40% by weight comprises a solution of a certain polyester in a mixture of phenol, cresylic acid and a hydrocarbon solvent consisting of a mixture of mono-, di- and tri-alkyl benzenes having a mixed aniline point of 11À0‹ C. and a distillation range of 288- 346‹ F. The polyester is the reaction product of (a) 25-56 equivalent per cent of tore- or isophthalic acids or their dialkyl esters, (b) 15- 46 equivalent per cent of ethylene glycol and (c) 13-44 equivalent per cent of a polyhydric alcohol containing at least three hydroxyl groups. The solution may also contain (i) a pigment, e.g. an oxide of iron, chromium, cobalt, cadmium, selenium, copper, titanium or manganese, (ii) a filler, e.g. silica, a silicate, kaolin, clay or diatomaceous earth, and (iii) a curing catalyst e.g. zinc octoate cadmium octoate, an organic titanate or an organic diisocyanate.
Patent GB-1155188-A (GB)
Title: Improvements in or relating to machines for preparing worn pneumatic tyres for retreading.
IPC: B29B17/02
Filed: 1966-09-26
Abstract: 1,155,188. Roughening &c. tyres. H. TIES. 26 Sept., 1966 [25 Sept., 1965], No. 42926/66. Heading B4B. In a machine for rasping and roughening a worn pneumatic tyre 2 for retreading in which the tyre is clamped in the machine frame 1 between two rim plates 4, 5 axially movable relative to each other and rotatable about a horizontal axis, means are provided whereby the axial movements of the rim plates are equal and opposite. The rim plates are carried by stub axles 6, 7 which are axially shiftably supported in uprights 1a, 1b of the frame 1 by means of nuts 32 driven by chains 33. The movement of the rim plates is controlled by limit switches adjustable on a scale 34. The opening distance between the rim plates to an amount just allowing insertion of the tyre is controlled by limit switch 35. Starting from this position, the drive for adjusting the rim plates is switched on by a pedal-operated switch which when a filling mouth width is reached in which the tyre beads 2a, Fig. 2, sealingly engage the rim flanges 4a, 5a, is switched off by limit switch 37. Compressed air is fed into the tyre, under control of the switch 37, to a predetermined pre-fill pressure. The rim plates are then moved apart to the operating mouth width as determined by limit switch 38 or the tyre is centred relative to the axis of shaft 3. For this purpose, the rim plates 4b, 5b, Fig. 2, are made axially longer than the width of the tyre feet 2b. When the rim plates are moved apart beyond the operating mouth width, the tyre is spread by the pre-fill pressure which causes tilting of the tyre feet about an axis extending approximately midway of the tyre feet. If the rim diameter of the tyre is greater than the nominal rim diameter, the tyre bead lifts itself off the rim while the inner edge 2c approaches the rim. In this way, the inner edge tightly seats on the rim plates 4b, 5b and the tyre is centred. After this, the rim plates may, if desired, be moved towards each other again and the tyre processing started. Simultaneously, the supply of compressed air is automatically switched on to establish the operating pressure. The mouth width of the rim plates, which is greater than the operating mouth width and serves to centre the tyre, is determined either by limit switch 35 or by an additional limit switch (38a), Fig. 3 (not shown). The tyre is rotated by means of a motor-driven knurled roller 8.
Patent GB-1126233-A (GB)
Title: An improved process for articles made wholly or partly from cork
IPC: A61L2/12
Filed: 1965-10-11
Abstract: 1,126,233. Sterile packaging. G. GREINER, and H. GREINER. 11 Oct., 1965 [9 Oct., 1964], No. 43026/65. Heading B8C. [Also in Division D1] Cork is sterilized by sealing in a plastic bag and heating by induction, e.g. at a frequency of 2400 megacycles/sec. The cork may be first coated with synthetic resin and/or wax; or heated together with an amount of water just sufficient to saturate the cooled cork product. The water may be in the form of a 2% aqueous sodium benzoate preservative solution. The cork may be in the form of bottle corks or cork gaskets.
Patent GB-968516-A (GB)
Title: Improvements in or relating to adhesive stripping
Inventor: BARRINGTON MAURICE FREDERICK
IPC: A43C13/00
Filed: 1961-12-01
Abstract: 968,516. Boot &c. protectors WALKIE STRIP Ltd. Dec. 12, 1962 [Dec. 1, 1961], No. 43105/61. Heading A3B. A protective strip 1 for the soles and/or heels of shoes comprises a flexible, wearresistant material e.g. rubber, thermoplastic material, fabric, matted of woven textile or glass fibre, felt &c., so formed that it is bendable in its own plane to curvilinear form while remaining substantially flat and is provided on one side with a pressure sensitive or contact adhesive layer. The strip may have a tapered transverse crosssectional form and/or be provided along at least one edge with notches and/or indentations 2 e.g. extending more than halfway across the strip from its inner edge; these may be further cut out as at 4 to facilitate tight bends. It may be formed by calendering and embossing rollers or extrusion through a die or orifice. The adhesive layer is covered and protected by a removable non-adhesive cover prior to application of the strip.