baber/WOPTO huggingface dataset:
Patent GB-236287-A (GB)
Title: Improvements in and relating to devices suitable for measuring the axial thrust of arotatable shaft
IPC: G01L5/12
Filed: 1924-04-03
Abstract: 236,287. Parsons, Sir C. A., and Cook, S. S. April 3, 1924. Propellers and propeller-shafts, measuring thrust and traction of.-A deformable bellows or concertina member is introduced into the line of shafting and the deformation of the member is indicated by an optical device the essential part of which is located within the bellows member. The bellows is inserted between the flanges b, b of adjacent lengths of the propeller shaft c, c. The device is formed as a deep corrugation and consists of two flanges d, d attached to short lengths e, e of hollow shafting and connected by a deep corrugation comprising disc-like members f, f connected together by an annulus g and to the members e, e by curves. Within each end of the bellows a coned thimble i, i<1> is is inserted the flange of which is inserted into the main flange d to which it is secured by screw pins. On a bracket k connected to the end of one cone a small mirror m is pivotally mounted with its axis on or close to the axis of the propeller shaft and transverse thereto, the mirror spindle being provided with a short lever n in operative relation to a link o attached to a bracket k<1> in the cone i<1> so that relative movement of the two cones causes the mirror to tilt. The link o may be adjusted by a screw and nut s, t. A beam of light is thrown from a lamp u on to the mirror m through suitable apertures v, v in the corrugation, preferably two opposite apertures are used in conjunction with a double-sided mirror. The lamp is mounted on a scale-box w having an observation aperture in the wall away from the shaft and a scale in the wall near the shaft. Preferably a fixed mirror 7 is secured to the cone i to give a datum into coincidence with which the inclination of the mirror m may be brought when desired. In a modification, cylindrical members telescoping into one another are substituted for the cones i, i<1>, the construction being such that the optical parts may be assembled and adjusted before insertion into the bellows. In a further modification, the coned or telescoping members are temporarily connected together by long bolts so as to be inserted as one piece. Several modifications of construction of the bellows member are also described. Specification 28353/09 is referred to.
Patent GB-393389-A (GB)
Title: Improvement relating to loose-leaf binders
IPC: B42F13/02
Filed: 1932-03-22
Abstract: 393,389. Loose-leaf binders. WILKINSON, W. J. and CAVE & CO., Ltd., C. W., 45, Farringdon Road, London. March 22, 1932, No. 8480. [Class 146 (i).] Leaf-receiving means for a loose leaf binder comprises a V-shaped clip member, adapted to be secured to a binding stub 5 of the binder, and provided with flexible transfer members 3 extending from tubular portions 2 at the end of the clip and adapted to engage with the free ends of the binding-posts, bodkins &c. 6. The flexible members 3 are of cord covered with copper wire, coiled springs, or other flexible material and have tag ends 4 to engage with the filing members 6, which are threaded on an elastic cord and attached to another stub 7 of the binder. The base 1 may be riveted or otherwise secured to the stub 5 and may be made of metal, stiff paper, synthetic resin, &c. The leaf-receiving means may be supplied separate from or attached to the binder.
Patent GB-330898-A (GB)
Title: Improvements relating to deflation indicating means for motor vehicles and aircraft fitted with pneumatic tyres
IPC: B60C23/04
Filed: 1929-03-18
Abstract: 330,898. Foulds, A. G. March 18, 1929. Puncture or deflation, indicating.-An electrical device for indicating deflation of a tyre comprises a rotary element 2 adapted to be fixed at the wheel-centre 1 and having a passage 3 which, by a pipe connection 45, is adapted to place the air-tube in communication with a Bourdon tube 12, the movement of which controls a contact-member in an electrical signalling- circuit. In the form shown, the Bourdon tube 12 and its associated parts are arranged to rotate on ball bearings inside a fixed casing 47 on which a junction-box 8 is fitted with two insulated pins 7 forming part of the circuit. A telescopic support 35, fitted with a universal joint at its lower end, adapted to be hung from the mudguard or other fixed part of the vehicle, is fitted with leads 41 for connecting the pins 7 to a plug in the wiring system on the vehicle. As shown in Fig. 1, the movable end of the Bourdon tube 12 is connected to a sector 15 which meshes with a pinion 16 carrying a contact-arm 18. The other (fixed) contact 24 is carried by a screw 23, Fig. 4, which is adjustable in a slot 22 to determine the minimum pressure at which the signalling-circuit is closed. The actual signals on the vehicle may consist of lamps, bells, dropshutters, &c.
Patent GB-720856-A (GB)
Title: Improvements in or relating to adjustable wheel chock
IPC: B60T3/00
Filed: 1953-03-30
Abstract: 720,856. Wheel chocks. EASTERN ROTORCRAFT CORPORATION. March 30, 1953 [April 14, 1952], No. 8692/53. Class 103 (1). A wheel chock or Scotch block, particularly for airplane wheels, comprises two triangular section wedge members, of which one 11 is rigidly secured to the end of a frame or beam member 12 and the other 13 is connected to a socket member 14 adapted to fit around and slide over the beam 12. The member 13 can be set at different distances from the member 11 through the action of a spring operated ratchet latch 22 that engages teeth 20 formed at one corner of the beam 12 which is of hollow square section. The latch is released externally by pressure upon a door 32 in the sloping end face 19 of the member 13, which disengages the latch by a projecting finger 34. Both wedge members 11 and 13 are provided on their base with a covering of anti-skid material 17.
Patent GB-652398-A (GB)
Title: Improvements in and relating to electric filter networks
IPC: H03H5/02
Filed: 1948-03-30
Abstract: 652,398. Impedance networks. COSSOR, Ltd., A. C., WYNN, A. H. A., and OXENHAM, J. K. March 30, 1948, No. 9022. [Class 40 (viii)] An electric filter network comprises inductance and capacitance elements constituted wholly by thin conducting material applied to an insulating support by a process such as is used to produce printed circuits, a capacitance element being formed by an inductance element on one side of the support and a plate on the other side. A low-pass filter circuit, Figs. 1, 2, comprises inductance elements L1, L2 and capacitance elements C1, C2 on one side of an insulating support and inductance elements L3, L4 and capacitance elements C3, C4 on the other side. The inductances are connected in series by T1, T2, T3, T4 passing through the support and shunt capacities are formed by plates C1, C2, C3, C4 and the inductance elements L1, L2, L3, L4, respectively. The plates C1 ... C4 are slotted to prevent damping and may be connected together and to one input and one output terminal. The capacitances may be formed by a support with conductive material on one side stacked with metal plates, or co-operating capacitance plates may be formed on opposite sides of the support. A number of sections may be formed by a stack of supports separated by insulated spacers.
Patent GB-1356097-A (GB)
Title: Mineral salt preparation
IPC: A61K9/22
Filed: 1973-02-23
Abstract: 1356097 Mineral salt preparations F HOFFMANNLA ROCHE & CO AG 23 Feb 1973 [25 Feb 1972] 9054/73 Heading A5B Mineral salt preparations having delayed electrolyte release for the continuous replacement of mineral salts lost by bodily stress and increased transpiration as well as by the use of diuretics, comprises a matrix suitable for imparting slow-release characteristics and in the form of salts 5 to 80 parts by weight of calcium, 5 to 40 parts by weight of magnesium. 2 to 20 parts by weight of potassium and no sodium of less than 20 parts by weight of sodium; the calcium, magnesium and sodium constituting more than 10% by weight of the preparation. The salts may be the appropriate halides, sulphates, phosphates, glycerophosphates, tartrates, citrates or ascorbates. A preferred preparation contains calcium and magnesium glycerophosphates and sodium and potassium chlorides. The preparations may be administered orally in the form of tablets, drageÚs or capsules and may also contain vitamins C, B 1  and B 6  and/or citric acid. The tablets may have a matrix of natural or synthetic material such as wax, e.g. hardened castor oil.
Patent GB-139658-A (GB)
Title: New or improved appliance for packing the stuffing boxes of surface condensers and the like
IPC: B25B27/00
Filed: 1919-04-10
Abstract: 139,658. Yarwood & Sons, W. J., and Yarwood, W. D. April 10, 1919. Packing, inserting.-In an apparatus for inserting packing in the stuffing-boxes of condenser tubes &c., a core v enters the condenser tube and a spring-pressed tube u engages the end of the tube. The packing is laid by the helical end of a tube k mounted in a casing a and turned by a handle d. A screw m in the casing engages a groove in the tube k. The packing is fed to the end of the tube k through a slot in the flange of a tube l, which is pressed against the mouth of the stuffing-box by a spring p. The tension of the packing may be regulated by a spring plunger r. In order to maintain the correct relative positions of the tubes as the packing is laid, a screw s in the tube l engages a helical slot t in the tube k. In a modification, the tube l is dispensed with, the guiding-slot being formed in a flange in the end of the tube k, and, in a further modification, the tube u also is dispensed with.
Patent GB-923807-A (GB)
Title: Electrolytic cell for carrying out electro-chemical reactions
IPC: C25B3/13
Filed: 1961-03-11
Abstract: 923,807. Electrolytic cells; metal alkyls. NALCO CHEMICAL CO. March 14, 1961 [July 13, 1960], No. 9248/61. Class 41. Electrolytic cells employing a sacrificial anode e.g. for making metal alkyls from anode metal, comprises a container 21 for the electrolyte within which is mounted a porous partition of non-conducting material in contact with the cell wall (cathode) and containing the anode metal in particulate form e.g. pellets, which are thus in contact with the inner side of the porous partition whereby the anode to cathode distance is very small e.g. 0.02 to 0.15 inch. The porous partition bag is clamped at its upper edge between flanges 28 and 29, and may be of glass filament fabric, nylon, a metal screen coated with P.T.F.E. or polythene, or a compound layer fabric of these. The outer cells 22, 23 surrounding the electrolytic cell, are used for heating or cooling liquids. In an example, lead pellets are fed into the cell through a funnel 63, and ethyl magnesium chloride flows into the cell through pipe 48 and leaves through a pipe 54. An anode plate 50 is mounted within the cell and rests on a bed of glass beads. The outer cells 22, 23 may have short metal bars bridging the cell walls in staggered form to define the circulating path of the cooling liquid. In another form (Fig. 1, not illustrated) the cell is in the form of an iron tube, the porous bag is made of three layers of glass fibre coated with a vinyl plastic and a rod anode of lead is inserted in the body of lead pellets. The electrolyte consisting of ethyl magnesium chloride and dibutyl carbinol is continuously circulated through the cell under pressure, at a temperature of 100 F. and at 28 V. Ethyl chloride is also present in quantity required to form the lead alkyl. The walls of the cell, acting as cathode, may have grooves to assist circulation of the electrolyte.
Patent GB-342943-A (GB)
Title: Top structures for vehicles
IPC: B60J7/12
Filed: 1930-03-22
Abstract: 342,943. Road vehicle hoods. KELLNER, A., 142, Berliner Strasse, Charlottenburg, Berlin. March 22, 1930, No. 9253. [Class 108 (i).] In a hood linkage of the kind in which a spring is arranged between the falling pillar and the divided cantrails to assist the erecting of the hood the cover is provided with telescopic tie-rods with which springs are combined so that they tend to extend the cover whilst the tie rods when extended serve to hold the cover. The falling pillar 2 is pivoted to the body 1 at 4 and carries divided cantrails 8, 10 to which are pivoted links 11, 12 carrying the bow 13. A telescopic tie-rod comprising a barrel 14 containing a spring 19, Fig. 4, and a plunger 15 is mounted as shown and assists in the raising of the hood. When in fully erected position the piston 18 of the plunger abuts against a nut 17 causing the barrel 14 and plunger 15 to act as a tie for the cantrails which do not therefore need the support of the window pillars 21, 22. The usual rear bows 6, 7 and spring 23 are provided. When collapsing a latch 26 prevents the telescopic tie-rod 14, 15 from extending the cantrails and so permits the hood to be collapsed by a cord 25.
Patent GB-1388124-A (GB)
Title: Medium for the culture of penicillin-acylase-producing strains  of escherichia coli
IPC: C12N9/84
Filed: 1972-02-29
Abstract: 1388124 Penicillin acylase FABRICA DE ANTIBIOTICE IASI 29 Feb 1972 9378/72 Heading C3H A medium for the culture of a strain of Escherichia coli that produces penicillin acylase contains 2À5-3% by weight maize extract (calculated as 50% with respect to dried substance), 0À1-1% urea, 0À01-0À05% lecithin, 0À2-0À3% sodium chloride and 0À15-0À3% phenylacetamide. The urea is a source of nitrogen and the lecithin is a stimulator.
Patent GB-171652-A (GB)
Title: Improvements in or relating to crushing, pulverising, grinding and like mills
IPC: B02C15/02
Filed: 1921-03-29
Abstract: 171,652. Withers, J. S., (Etablissements C. H. Candlot Soc. Anon). March 29, 1921. Roller-and-ring mills.-In a crushing or pulverizing mill having a grinding-roller rotatable on the interior surface of a stationary horizontal grinding-ring, the roller c, Fig. 1, is supported below the ring a by an arrangement disposed in the vertical axis of the ring a in such a manner as to permit of the roller c and its shaft d assuming any desired inclination relatively to the vertical axis of the ring. The shaft d is supported by means of a segmento-spherical footstep bearing e in a socket f on the base-plate g, and a driving- pulley h is mounted on the shaft so that its central horizontal plane passes through the centre x of the bearing e. The material is fed through a hopper m, and the pulverized material is delivered by a shoot n; or, as shown in Fig. 3, the footstep e may be fixed in the plate q and the socket f mounted in the shaft d. The working-surfaces of the ring and roller are in the form of truncated cones having as their common apex the centre x of the footstep e.
Patent GB-919767-A (GB)
Title: Improvements in or relating to electron beam tubes
Inventor: SWAINSBURY ANTONY FRANK
IPC: H01J23/027
Filed: 1960-03-17
Abstract: 919,767. High frequency tubes. STANDARD TELEPHONES & CABLES Ltd. March 17, 1960, No. 9400/60. Class 39 (1). In a travelling wave tube or other electron beam tube there is provided a tubular metal envelope portion 7 extending beyond the end of the electron beam path, a metal exhaust tube 10 having a head 11 serving as a collection surface slanting away from the electron beam path, a hermetic seal 16 and one or more exhaust passages through head 11 communicating with the bore of the exhaust tube 10, the arrangement being such that there is no straight passage parallel to, or on the axis of, the beam path into the tubulation. The collecting face 12 is spaced from a sloping shoulder 13 and a solder sealing-ring 16 is located behind shoulder 15. Secondaries and reflected primaries are trapped in chamber 14. The exhaust tube 10 which is a copper tube has a protective cap over the squeezed-cff exhaust pip 19. An axial focusing magnetic field is provided.
Patent GB-197655-A (GB)
Title: An improved process for the synthetic production of ammonia
IPC: C01C1/04
Filed: 1923-04-05
Abstract: To avoid overheating of the catalyst in the synthesis of ammonia at pressures below 200 atmospheres and with temperatures below 500 DEG C., the reaction gases are passed over the catalyst along with a predetermined quantity of the reaction product.  The Specification as open to inspection under Sect. 91 (3) (a) refers also to the synthesis of ammonia under any pressure and temperature conditions. This subject-matter does not appear in the Specification as accepted.
Patent GB-799967-A (GB)
Title: Improved means for imparting progressive movement to a creature simulating toy
IPC: A63H11/00
Filed: 1956-03-27
Abstract: 799,967. Creature - simulating toys. ASKAM, J. F. Nov. 20 1956 [March 27, 1956], No. 9454/56. Class 132(3) A creature-simulating toy comprises a series of contiguous interconnected elements which together form the body of the toy, manually controlled means for imparting relative movement between contiguous elements whereby the overall length of the toy can be alternately expanded and contracted, and means incorporated adjacent each end of the toy for effecting a claw-like engagement of alternate ends of the toy with the supporting surface whereby a progressive movement can be imparted to the toy. A toy snake, Fig. 1, consists of a series of elements A, B each provided with an axial bore terminating at its forward end in a recess C and at its rearward end in a frusto-conical cavity bounded by a skirt of the element. The bores accommodate a rubber or like elastic tube, Fig. 3, provided with a plurality of thin-walled bulbous enlargements E which are located in the recesses C. The forward end of the tube is formed into a tongue F which may have transverse serrations G. The other end of the tube is connected to an air bulb H which, on being squeezed, causes each body element to be displaced away from the adjacent elements as a result of inflation of the enlargements E. Elastic bands threaded through slots in the element skirts are attached to the head and tail of the toy and cause the body to contract again each time the bulb is released. The leading and rearmost elements are provided with a rearwardly directed claw and may be weighted to effect a more positive engagement of the claws with the supporting surface. When the body is increased in length, movement of the rearmost element is prevented by the rear claw and the remainder of the body moves forwardly. Upon contraction of the body, the leading element is prevented from moving rearwardly. and the trailing elements and tail of the toy move forward. As the toy progresses, the tongue is reciprocated into and out of the head as the rubber tube is inflated and deflated, and the serrations G rub on the month of the toy thus setting up audible vibrations; a small hole may be provided in some of the bulbous enlargements E to allow air to escape and produce a hissing sound. In a modification, Fig. 4, thin concentric sleeves L enclose the joints of the elements, and a thin rubber or like elastic skin attached at its ends to the head and tail of the toy causes the body to contract when the tube is deflated. In a further modification, Fig. 5 the recesses C are of assymmetrical shape and the toy assumes a curved shape during its forward progression. Instead of the pneumatic operating means, electric solenoids may be used to give the elements movement by alteration of the direction of the energizing current.
Patent GB-765346-A (GB)
Title: Improvements in electrical contact arrangements especially for meteorographic apparatus
IPC: G01W1/08
Filed: 1954-03-31
Abstract: 765,346. Electric control systems. SANGAMO WESTON, Ltd.. March 31, 1954 [June 18, 1953], No. 9478/54. Class 40 (1). [Also in Group XXXVII] The invention relates to make and break switches in a radio sonde, wherein a spiral contact 2 carried on the periphery of a cylinder, or, as shown, on a disc 1, is rotated at constant speed so as to contact with the tips of spring arms 17, 18, 19 movable, in known manner, in accordance with, e.g. temperature, humidity and barometric pressure, respectively, to produce electric pulses whose timing in relation to a reference pulse produced during each disc rotation by a contact 11 and disc projections 12, are measures of the magnitudes of the variables in question. According to the invention, the spaces between the ridges 15 formed by the convolutions of the spiral contact 2, Fig. 3, are filled to the level of the ridge tips, with an insulating compound 16 on which the tips of the contact arms 17-19 bear between successive engagements with the convolutions. The disc 1 is preferably cast from a low melting-point alloy consisting of tin, antimony and copper in substantially the following percentages 84, 8, 8, and the insulating compound comprises a mixture of aluminium paste deoxidized and burnished with a fatty acid, and an alkyd type resin modified with a formaldehyde condensate resin, the mixture being catalized with an acidic type catalyst.
Patent GB-454162-A (GB)
Title: Improvements in electrical etching
IPC: C25F3/14
Filed: 1935-03-27
Abstract: A paint employed as a resist in electrolytic etching comprises a finely divided conductive material such as graphite or a metal such as zinc with a binder such as thick linseed oil or shellac dissolved in spirit; the binder should be about 10 per cent of the mixture.  A mixture of graphite with metal may be employed, the metal preferably not being in excess; carbon black may be added.
Patent GB-107794-A (GB)
Title: An Improved Automatic Extra Air Admission Device or Petrol Economiser for use with Internal Combustion Engines.
IPC: F02D9/00
Filed: 1916-07-08
Abstract: 107,794. Motorists' Purchasing Association, and Baker, F. S. Warwick-. July 8, 1916. Cylinders, pipes for.-An extra-air admission device for connection with the engine suction consists of a chamber A open to the atmosphere, a second chamber E into which air is drawn past a spring-controlled valve C, and a third chamber G surrounding the second and connected with the engine suction, preferably with the induction pipe. In the form shown, the pressure of the spring D on the valve C is regulated by means of a screw cap H provided with a lock-nut h. The first chamber A and the wall e of the chamber E are formed in one with a base-plate B, and the cover F of the chambers E, G is provided with a branch pipe F<1> leading to the engine and with ears for securing to a suitable support.
Patent GB-1499983-A (GB)
Title: Audio-frequency amplifiers
IPC: H03F1/34
Filed: 1975-03-04
Abstract: 1499983 Automatic gain control GENERAL ELECTRIC CO Ltd 4 March 1975 [4 March 1974] 9618/74 Heading H4R An A.F. power amplifier having its gain reduced if its output current exceeds a predetermined limit, comprises a negative feed-back path, via 23, an F.E.T. 19 shunting said path, at least one resistor 14, 15 connected in series with an output current path of the amplifier, and means, including 16, 17 and 24, whereby excessive current causes the F.E.T. to be biased so as to increase the negative feedback and reduce the gain. Transistors 16, 17 and 24 are normally non-conducting, and the gate of F.E.T. 19 is earthed so that the source-drain resistance of 19 is low, the feedback being determined by the relative values of resistors 22 and 23. If the current in resistors 14 and/or 15 becomes high enough 16 and/or 17 are turned on, transistor 16 being controlled by transistor 24. Then a capacitor 18 begins to charge and the resistance of F.E.T. 19 to increase. Since 19 is in series with 22 the effect is to increase the negative feedback. It is stated that automatic gain control may be obtained up to approximately 50% overload.
Patent GB-1339225-A (GB)
Title: High light intensity photographic lens of extended gauss type
IPC: G02B13/00
Filed: 1972-03-01
Abstract: 1339225 Photographic lens CARL ZEISSSTIFTUNG [trading as CARL ZEISS] 1 March 1972 [24 March 1971] 9621/72 Heading G2J An extended GAUSS type lens having four elements forming a front component and two lens elements forming the rear component, the components being spaced by an air gap with the glass surface adjacent the air gap being concave towards each other, is defined rigourously by its optical parameters. Both 6 and 7 lens groups are disclosed.