baber/WOPTO huggingface dataset:
Patent GB-1231579-A (GB)
IPC: F15B15/10
Filed: 1967-11-01
Abstract: 1,231,579. Pneumatic actuator. INTROL Ltd. Oct.24, 1968 [Nov.1, 1967], No.49704/67. Heading FiP. [Also in Division F2] A power actuator for a valve comprises a reversible casing 11 and an operating spindle having means (e.g. a screw thread 22) for coupling to the valve, the casing housing an operating means (e.g. a diaphragm 14 with an internally screwed boss 15) to be coupled to the spindle at alternative locations (e.g. 19 and 21) according to the disposition of the casing. For operation when the casing illustrated is reversed the blanking plate 23 and the coupling member 12 exchange locations on the casing. The actuator shown is moved by compressed air entering at 6 acting on the diaphragm to compress a spring 1 whose loading is adjustable as at 2. The spring could be replaced by a secondary airpressure, or the diaphragm by a piston and cylinder arrangement.
Patent GB-1232521-A (GB)
IPC: C25B3/23
Filed: 1969-05-14
Abstract: 1,232,521. Epoxide production. PULLMAN Inc., and FARBENFABRIKEN BAYER A.G. 14 May, 1969 [15 May, 1968; 24 March, 1969 (2)], No. 24701/69. Heading C2C. [Also in Division C7] An electrolyte medium, such as an aqueous solution of an alkali or alkaline earth metal halide, from which the organic product of a compound having aliphatic or cycloaliphatic unsaturation, e.g. an olefin oxide, produced by contacting the unsaturated, e.g. olefinic compound with the medium generated in an electrolytic cell, has been separated, is decontaminated by treating the medium in a separate zone with an inorganic oxidizing agent, preferably comprising halogen, e.g. Cl 2 , ozone-enriched air, an alkali or alkaline earth metal hypohalite and/or H 2 O 2  prior to recycling to the cell. Contaminants such as acetol tar which cause fouling of the cell are thus removed. An olefinic compound, such as comprising ethylene, propylene, butylene, allyl chloride or styrene, contacts the anolyte containing halogen to form an olefinic halohydrin, e.g. chlorohydrin, which then contacts the catholyte containing hydroxyl ion to form the olefin oxide by dehydrohalogenation. Preferably the anolyte and catholyte are separated by a liquid permeable diaphragm, through which the halohydrin dissolved in anolyte passes into the catholyte. The halohydrin forming reaction and dehydrohalogenation may be carried out within the cell and/or external of the cell. The electrolyte medium may be treated with halogen oxidizing agent in the anode chamber of an auxiliary electrolytic cell or countercurrently in a tower. The treated electrolyte medium may be filtered, e.g. through absorbent such as carbon, bauxite, bentonite or diatomite, and/or centrifuged prior to recycling. The electrolyte medium may contain 2 to 25% of a chloride or bromide of Na, K, Li, Ba, Ca, Sr and/or Mg, and 1 to 25% of a sulphate, sulphide, chromate, phosphate or carbonate of an alkali or alkaline earth metal for improving conductivity. The oxidizing agent may be diluted with N 2 , air, a hydrocarbon or halogensubstituted paraffin and/or an aromatic hydrocarbon, e.g. kerosene. The anode may be solid or porous and contain a hollow core for introducing the olefinic compound, being composed of graphite, Pt, platinized Ti or Ta, Ti coated with Pt mixed with Ir or Rh, platinized Ir, magnetite, Ti, Pb; or polyethyelne, polypropylene, polyurethane, or " Teflon " (Registered Trade Mark) metallized with Cu or Ag and platinized. The cathode may be of steel screen or expanded sheet, or an amalgam. The diaphragm (if present) may be of asbestos, " Teflon ", polyethylene, polyacrylonitrile, a perfluorochloro plastic, a vinyl chloride polymer or copolymer with vinylidene chloride, polybutylene, polystyrene, polypropylene or polyurethane plate or fibre fabric. The current may be reversed. Reference has been directed by the Comptroller to Specifications 1,049,756 and 1,090,006.
Patent GB-1233345-A (GB)
IPC: B24B27/04
Filed: 1970-01-22
Abstract: 1,233,345. Grinding. FUJIKI KOUSAN K.K. 22 Jan., 1970, No. 3113/70. Heading B3D. An internal grinder for a steel ingot mould 41 comprises a grinding wheel 1 rotatably mounted at the end of an elongated arm 4, drive means 7 for the grinding wheel, a head 11 supporting the arm for rotation about its longitudinal axis, means 9 for rotating the arm about the longitudinal axis, means 14 below the arm to adjust the angle of elevation of the arm, a copying plate 27 receiving an end of the adjusting means and pivoted at one end 28 on a carriage 21 so as to be angularly adjustable in a vertical plane, the head being reciprocatable along the carriage which is angularly-adjustably mounted on a truck 32. The arm is of hollow elliptical cross-section and a drive belt 3 passes within the arm between a drive motor 7 at one end and the spindle 2 of the grinding wheel at the other. The arm is rotatably supported in a cylindrical bearing 5 and is rotatable through 180 degrees about the axis of the bearing by gearing 10, 10a and a hand wheel 8 to position the grinding wheel for operation on the left- or right-hand side of the ingot mould 41. The sleeve is supported by a pivot on the head 11 and is adjustable about the pivot by a hand wheel 13 rotating a gear to adjust the distance between a cap engaging the sleeve and a roller engaging the copying plate 27. The plate is mounted at its forward end on a pivot 28 on the carriage 21 and at its rearward rests on a tapered collet adjustable by a lead screw connected to a hand wheel 29 to adjust the angle of the plate so that the grinding wheel follows the contour of the mould as the head 11, which is supported by wheels 12 on tracks on the carriage, is reciprocated between limits determined by dogs 40, 40a acting on a limit switch 39 controlling a motor 18 driving the wheels 12a of the head. The carriage 21 is mounted on a pivot 22 on the truck 32 and is adjustable about the pivot to align the reciprocation of the head with the side walls of the mould by a hand wheel 23 connected by gearing 24, 24a and a spindle to the carriage. The truck is movable along rails 38 by rotation of a hand wheel 35 connected to a spur gear 37 fixed to one of the axles 34 of the truck.
Patent GB-1238698-A (GB)
IPC: H04N5/52
Filed: 1968-12-20
Abstract: 1,238,698. Transistor amplifying circuits. R.C.A. CORPORATION. 20 Dec., 1968 [28 Dec., 1968], No. 60572/68. Heading H3T. A transistor i.f. amplifier comprises two transistors 43, 60 with their collector-emitter paths connected in series for D.C. and in series with a resistor 55. The transistors are connected in cascade for the signal frequency, the path from the collector of transistor 43 to the emitter of transistor 60 being decoupled to earth by means of capacitors 62, 63: transistor 43 feeds transistor 60 by means of tuned collector circuit 57, 58 and coupling capacitor 66. An output is taken from the collector circuit of transistor 60 by means of tuned circuit 67, 68. The bases of the transistors are biased from a temperaturecompensating network comprising resistors, 46 47, 48, 49, 51 and thermistor 50. In order to vary the gain without detuning, the collectoremitter current of the transistors 43 is varied by means of transistor 75 which has an a.g.c. voltage applied to its base; transistor 75 is connected so that its emitter current passes through resistor 55, the total current passed by transistors 43, 60 and 75 thereby being rendered substantially constant. The transistors 43, 60 are so biased that a decrease in their collectoremitter currents causes an increase in gain.
Patent GB-1251827-A (GB)
IPC: C23C24/08
Filed: 1968-12-09
Abstract: 1,251,827. Heat-treating silicon steel. NIPPON STEEL CORP. Dec. 9, 1968 [Dec.12, 1967], No. 58395/68. Headings C7A and C7N. [Also in Division C1  A vitreous electrically insulating film is formed on an oriented cold-rolled silicon steel sheet by heat-treating in a reducing atmosphere (e.g. H 2 -containing) at 700-900‹ C., coating the sheet with a substance prepared by mixing 0.5-40 parts by weight of one or more oxides or hydroxides of Ti with 100 parts of one or more oxides or hydroxides of Mg, and annealing said steel sheet above 1100‹ C. in a hydrogen-containing atmosphere. The substance may also contain 0.5-50 parts of one or more oxides or hydroxides of Mn. The silicon steel sheet preferably comprises 2-3.5% by weight Si, with the balance Fe, although 0.01- 0.09% by weight Al may be present.
Patent GB-1257804-A (GB)
IPC: F16C33/20
Filed: 1968-02-27
Abstract: 1,257,804. Coated surfaces. WELLWORTHY Ltd. 27 Feb., 1969 [27 Feb., 1968], No. 9441/ 68. Heading B2E. [Also in Division F2] A bearing or seal including at least one metal component and a mating component of a fluorocarbon material is obtained by rubbing the mating surface or surfaces of the metal component(s), with a fluorocarbon material under pressure before assembly of the components and the bearing or seal. The film or layer may be reinforced with an inorganic or organic filler. The metal component may be a cylinder or a cylinder liner and the component of fluorocarbon material a piston ring.
Patent GB-1257892-A (GB)
IPC: B23C5/26
Filed: 1970-05-01
Abstract: 1,257,892. Milling machine details. L. SCHREM [trading as ALBERT SCHREM]. 1 May, 1970 [7 May, 1969], No. 21120/70. Headings B3B and B3K. [Also in Division E2] An hydraulic clamping device e.g. for clamping a gear-cutting tool 34 to a machine shaft 13, comprises a core 14 and surrounding cap-like member 24 between which is a chamber 22 which communicates with a chamber 15 in the core 14, the chamber 15 incorporating a piston 17 whose movement is transmitted by hydraulic fluid in the chambers to cap-like member 24 to cause the latter to move axially of the core. In one form (as shown), the core has a threaded spigot 11 which passes through a central aperture of tool 34 into a socket 12 in the shaft. Lip seals 30 enclose chamber 22, although that lip seal nearest the tool could be replaced by an 0-ring seal acting between facing surfaces of flange 26 and core 14, thus allowing the chamber 22 to widen or flare outwardly towards flange 26. Axial movement of the cap-like member relative to the core is limited by screw 31. In another form (Fig. 3, not shown), the core includes the threaded socket for receiving a spigot of the shaft, and relative axial movement of the core and cap-like member is limited by a locking ring (131).
Patent GB-1259366-A (GB)
IPC: A01D78/12
Filed: 1969-03-31
Abstract: 1,259,366. Haymaking machine. MASCHINENFABRIK FAHR A.G. 31 March, 1969 [3 April, 1968], No. 16765/69. Heading A1F. A rotary rake comprises outwardly extending arms 7 carrying tines 8 which lie in a plane angled so as to sweep the crop with a component of motion radially inwards towards the axis of rotation of the rake. The arms may be mounted tangentially in a central tub or radially with their outer ends bent forwardly in the direction of rotation. A cam track 13 co-operates with a follower 11 for rotating the arms about their longitudinal axes to swing the tines upwardly and rearwardly with respect to the direction of rotation of the rake. Each array of tines includes at least three tines having a similar curvature and an outer tine 8' bent forwardly of and shorter than the remaining tines of the array.
Patent GB-1267214-A (GB)
IPC: G01F23/26
Filed: 1969-07-18
Abstract: 1,267,214. Liquid level indication. SMITHS INDUSTRIES Ltd. July 17, 1970 [July 18, 1969], No.36214/69. Heading G1H. In an electrical capacitive liquid sensing, apparatus an oscillatory circuit 10 comprising two halves of a pair of bridge arms of a centre topped secondary winding 11 of a transformer 12, the bridge arms comprising a variable capacitor 13 and a fixed reference capacitor 14 and a pre-set reference capacitor 15, the arrangement is such that the variable capacitor 13 is disposed at the top or bottom of an aircraft fuel tank so that the value of the capacitor varies and when the fuel reaches a predetermined high or low level to activate or not an oscillator comprising an N-P-N transistor 16, a positive voltage supply line 17, the transformer primary 18, a pair of resistors 19, 20 and a negative voltage supply line 21, depending on whether a re-generative or de-generative feedback is supplied to the base electrode of transistor 16 when the fuel level reaches the predetermined level, the oscillator ceases to oscillate. The output signal of the oscillator is fed via a capacitor 28 to a clamping diode 29 and the clamped signal is smoothed by a resistor 30 and capacitor 31 and then applied to the P-N-P transistor 28 forming part of a D.C. amplifier. The oscillation fluctuation due to fuel surface ripple are prevented by a capacitor 32.
Patent GB-1288398-A (GB)
IPC: A61B5/0476
Filed: 1969-11-19
Abstract: 1288398 Electrodes E R JOHN and R LAUPHEIMER 19 Nov 1969 56519/69 Heading A5R [Also in Division G1] An electrode for connection with a brain wave analyser (see Division G1) comprises a helmet (30), Figure 3 not shown, within which contacts (31) (32) are arranged in bilateral symmetry. A selected pair of these contacts are connected to the analyser by wires (33), (34), the other contacts being connected to the analyser in sequence, as desired.
Patent GB-1288469-A (GB)
IPC: B01D33/067
Filed: 1970-08-27
Abstract: 1288469 Filter drum surface construction CHEMIEANLAGEN STASSFURT VEB 27 Aug 1970 41310/70 Heading B1D Perforate support plates 5, intended to support filter medium off the outer surface of a rotary filter drum 1 have shoulders 4a, 4b along their axial edges which engage under the flanges 3 of T-section cell-separating bars 2 on the drum. Shoulder 4a is twice as wide as shoulder 4b in the circumferential direction of the drum enabling the plate to be inserted, shoulder 4a first as shown. Thereafter the plate rests with shoulder 4b fully inserted under flange 3 (Fig. 2, not shown). Several plates 5 are inserted side by side between one pair of bars 2, alternate plates being biassed towards opposite bars (Fig. 3, not shown). The corners of all but one end plate have lugs and recesses which then interlock to prevent plates from moving circumferentially out of engagement with the bars. Each plate is inserted between bars then pushed axially into place. The last plate has no lugs and is merely inserted and held with a pin (7). Instead of lugs and recesses in the plate corners, the abutting edges of adjacent plates may have opposed central recesses into which a separate lug is inserted to prevent circumferential movement.
Patent GB-1288628-A (GB)
IPC: G03G21/16
Filed: 1969-12-31
Abstract: 1288628 Electro-photographic copiers ADDRESSOGRAPH-MULTIGRAPH CORP 31 Dec 1969 [21 Jan 1969] 63520/69 Heading G2H Rollers 60, 62 supporting an endless photoconductive belt 58 are mounted in a frame 64 which is pivotable into a vertical position as shown in which the belt can be removed by pulling it over a guide flange 75. In use, an original guided by an adjustable guide (22) Fig.1 (not shown) is fed in by rollers (160, 162) Fig.8 (not shown) controlled by a switch (173) which is tripped by the original to prevent another original being fed during copying of the first one. The original is fed between belt 58 and a transparent tube 178 containing a light source which illuminates the original through an adjustable slit (188). Tube 178 is pivotable into a raised position.
Patent GB-1289812-A (GB)
IPC: F02D1/10
Filed: 1970-01-07
Abstract: 1289812 Speed governors ROBERT BOSCH GmbH 7 Jan 1970 [8 Jan 1969] 776/70 Heading G3B A centrifugal governor in a fuel injection pump has lever 14 moveable about a manually adjustable fulcrum 19, adapted to be moved by flyweights acting through a governor member 12 to adjust the position of a control rod 22 of the pump the movement of the lever in a direction to increase the fuel quantity being limited by an adjustable stop 48 having a curved surface 49 corresponding to the full load adaption curve required by the engine for smoke free combustion. The stop is engageable by a feeler nose 32 mounted on the lever 14, and is both longitudinally and and angularly adjustable by means of screws 55 and 57. The arrangement is such that the print of abutment of the feeler nose against the surface 49 depends upon the axial position of the member 12. The lever 14 engages the member 12 by a sliding member 15 which is pivotally connected to a lever 16 rotatable about a pivot 17 fixed to housing 18. The fuler 32 is mounted on a rocker 33 pivoted at 44 to the lever 14, and abuts the lever by an adjustable stop 34 loaded by a spring 35. When starting the engine, lever 24 is moved in the direction of arrow iv to full load position and the lever 14 moves rod 22 to maximum fuel position without the nose contacting the curve 49. As the engine speed increases, member 15 moves to the left, and because of the lever 16, lever 14 moves upwards towards stop 48 and also pivots about pin 19 so that nose 32 contacts curve 49 at a position corresponding to engine speed to limit the maximum delivery quantity of fuel.
Patent GB-1301770-A (GB)
IPC: A61K9/16
Filed: 1971-07-15
Abstract: 1301770 Dispersible agglomerates HAG AG 15 July 1971 33244/71 Heading A2E [Also in Division A5] Porous granule aggregates are prepared from food products, pharmaceutical preparations, and semi-luxury products in powder form, for example fruit and vegetable extracts, milk, sugar, coffee, coffee substitutes, tea, and herb tea, extracts, cocoa, dextrose and caffeine, and vitamin compositions, by moistening the initial powdery material with at least 10 wt % water, which may be supplied as vapour, moist air, aqueous solutions or moist powdery material, heating and evacuating the moistened powder, drying the resulting swollen and glutinous mass, and crushing to the desired particle size.
Patent GB-1303994-A (GB)
IPC: G01D5/12
Filed: 1969-04-01
Abstract: 1303994 Measuring shaft displacements electrically ENGLISH ELECTRIC CO Ltd 17 April 1970 [1 April 1969 22 Aug 1969 9 Dec 1969] 17660/70, 17659/70 and 17658/70 Heading G1N Apparatus for measuring shaft displacement is as described in Specification 1303993 but the claims are for a method of measuring relative displacement in a certain direction of the shaft relative to a supporting frame, by means of at least one magnet 12 mounted for rotation with the shafts and loops of wire 13 mounted on the frame and shaped to provide at least one first and at least one second reference line passed by the magnet during rotation of the shaft and such that the intervals between the magnet passing the first and second reference lines is dependent upon the displacement to be measured, which intervals are measured by a bistable circuit which is set to its first and second states by the passage of the magnet past respective lines so that the mark/space ratio of the bistable circuit is proportional to the displacement to be measured.
Patent GB-1311091-A (GB)
Title: Coin operated vending machines
IPC: G07F11/58
Filed: 1969-01-02
Abstract: 1311091 Releasing articles from endless conveyers BARBER ELECTRICAL SERVICES Ltd 31 March 1970 [2 Jan 1969] 237/69 Heading B8A [Also in Division G4] In a coin-freed vending machine articles 9, particularly packets, are suspended from gripper devices 3 which are attached to integral links 4, of an endless chain 1, and may be released by a tooth of a sprocket wheel 2 engaging a cranked rod 10 and pivoting a gripping member 5. The packet may also be released by a fixed cam acting on the rod 10 of each device as it reaches a delivery position. In the embodiment shown the gripper device has one pivoting gripping member, preferably with serrated face 7, and a fixed stop 8. In other embodiments (Figs. 2 to 5, not shown) a star wheel (14) or slidable serrated stop (20) is mounted on a fixed plate 8, the serrated face 7 is replaced by a rubber gripping insert (15) or two pivoted members (17) with eccentrically mounted serrated wheels (16) are provided.
Patent GB-1322094-A (GB)
Title: Acoustic wave liquid-level measuring apparatus
IPC: G01F23/296
Filed: 1971-10-25
Abstract: 1322094 Liquid-level sensing L'ELECTRONIQUE APPLIQUEE 25 Out 1971 49514/71 Heading G4H [Also in Division H4] Liquid level in a deep tank is measured by an ultrasonic pulse-echo system which determines the distance of the liquid surface above either a first transducer arrangement in the lower part of the tank or a second transducer arrangement in the upper part of the tank, either distance being selectively displayed on a two-input digital display device. In the Fig. 1 embodiment, transducers 4 and 5 below open-ended waveguide tubes 23, 30 are pulsed synchronously by transmitters 2 and 3 (transmitter 3 providing a higher carrier frequency than 2). Circuit 10 provides a rectangular gating pulse of duration equal to the twoway travel time of the ultrasonic pulse between transducer 4 and the liquid surface. This gating pulse enables passage of clock pulses from a first generator through gate 18 to a counter 19 constituting the display device. When the liquid level is above transducer 5, the gating pulse output from a circuit 11 (operating in the same way as circuit 10) blocks the passage of clock pulses from the first generator through gate 20 to gate 18 and instead enables passage of clock pulses from a second generator through gate 18 to the counter. To allow for temperature variations, or temperature difference between the top and bottom of the tank, the clock pulse frequencies are made dependent on the acoustic velocity in the liquid. For this purpose the first clock pulse generator comprises a transducer 6, a spaced reflector 49 and transmitter and receiver circuits 12, 14 together constituting a relaxation oscillator, the output of which is frequency multiplied at 16. The second clock pulse generator comprises similar units 7, 50, 13, 15, 17.
Patent GB-1329200-A (GB)
Title: Food-conveying drum for a deep fat frying machine
IPC: A47J37/12
Filed: 1971-12-30
Abstract: 1329200 Deep fat fryers WHITE CASTLE SYSTEM Inc 30 Dec 1971 60631/71 Heading A4D A food conveying drum 13 for a deep-fat frying machine comprises a pair of spaced circular perforated end walls 26 between which a plurality of food-conveying pockets 13a are formed, each pocket being defined by a respective curved wall 34 extending parallel to the drum axis, the drum in use being mounted for rotation about a generally horizontal axis with its lower part in a cooking liquid well and its upper part clear of the well, each pocket 13a being shaped so that as it emerges from the cooking liquid the cooked food is automatically discharged by gravity in a direction away from the drum axis, preferably so that it passes over a ledge 36 into a vessel 38. The drum 13 is continuously rotated by an electric motor the speed of which can be varied to determine the cooking time and may be in the range 0À1 to 0À5 R.P.M. Hot cooking oil is continuously circulated through the well by means of an inlet pipe 40, an outlet pipe 41, a pump, a filter and an in-line electrical heater controlled by an adjustable thermostat disposed in or adjacent the well. An axle 28 of the drum is supported by generally U-shaped brackets and the drum may be removed by lifting it out of the machine through an opening in a front panel of the machine, an upper part of the drum normally projecting through this opening so that food can be loaded into the pockets 13a. (For Figures see next page)
Patent GB-1334397-A (GB)
Title: Gelatin composition
IPC: A23L29/281
Filed: 1971-01-26
Abstract: 1334397 Gelatine compositions FILMFABRIK WOLFEN VEB 26 Jan 1971 3194/71 Heading C3H [Also in Division G2] A gelatine composition comprises a mixture of a gelatine having an isoelectric point from 4À5 to 5À2 with from 10% to 100% by weight, calculated on that gelatine, of a gelatine having an isoelectric point from 6À0 to 9À0. One or both of the gelatines may be de-ionized and the mixture may be made by mixing the components in aqueous solution. The mixture may be used as a binder in photographic emulsions or auxiliary layers.