baber/WOPTO huggingface dataset:
Patent GB-1461656-A (GB)
IPC: C04B28/02
Filed: 1974-05-24
Abstract: 1461656 Porous construction material TEIJIN Ltd 24 May 1974 [29 May 1973] 23415/74 Heading C1H [Also in Division C3] A porous construction material is formed from a composition comprising 100 parts by weight of water, 35 to 350 parts by weight of a hydraulic cement and 0À02 to 1À20 parts of a foaming agent which is a mixture of two cellulose derivatives, one of higher viscosity than the other, with a polyvinyl ester which has been at least 75% saponified. The derivatives specified are cellulose ethers, i.e. methyl cellulose, ethyl cellulose, hydroxyethyl methyl cellulose, hydroxypropyl methyl cellulose, hydroxyethyl ethyl cellulose and carboxymethyl cellulose. The hydraulic substance may be portland cement, alumina cement, blast furnace slag or sand/lime. Optional additives include rapid hardening agents, e.g. caustic soda or calcium chloride, light-weight aggregate, e.g. vermiculite or expansive paigeite, aggregate, e.g. sand or gravel, reinforcing agents, e.g. glass fibre, steel fibre, asbestos, nylon fibre, polypropylene fibre, polyvinylalcohol fibre, polyvinylchloride fibre or hemp, colouring agents, surfactants, e.g. renned soap or protein hydrolysate, viscosity increasing agents, e.g. sodium alginate, sodium polyacrylate, sodium polymethyacrylate, polyacrylaamide, gelatine, starch, dextrin, rubber latex, and water glass. In examples the foaming agent is dissolved in water and beaten to a froth, a slurry containing the cement, with optional ingredients such as sand or quicklime poured in and the foamed slurry cast into a mould.
Patent GB-1075022-A (GB)
Title: Super-strength olefin polymer fibres
IPC: D01D5/08
Filed: 1965-06-02
Abstract: 1,075,022. Spinning apparatus. UNITED STATES RUBBER CO. June 2, 1965 [July 6, 1964], No. 23436/65. Heading B5B. Crystalline olefin polymer having melt index of 0.2-20 is spun by extrusion through a die orifice at above 500 F. The emerging fibre is advanced through a plurality of controlled heat zones containing an inert gas, succeeding zones being at gradually decreasing temperatures. A plurality of the heating zones is at above the m.p. of the polymer. The fibre remains above its m.p. for not less than 5 inches, and is drawn while at above its m.p. It is then cooled to 60-100 F.; and then heated to 280-320 F. and drawn to several times its own length to induce molecular orientation. The polymer may be isotactic polypropylene.
Patent GB-1106425-A (GB)
Title: Frequency-modulated radio transmitter
IPC: H03C3/16
Filed: 1965-06-02
Abstract: 1,106,425. Frequency modulation; transistor oscillator circuits. TELEFUNKEN PATENTVERWERTUNGS G.m.b.H. 2 June, 1965 [9 June, 1964; 1 Dec., 1964], No. 23497/65. Headings H3R and H3T. A self-oscillating transistor Tr, Fig. 8, is frequency-modulated by a signal applied via terminals a and b to the base; this has two effects, (a) altering the phase of the collector current and (b) altering the base-to-collector capacitance, the two effects being linear when combined but non-linear separately. The collector circuit comprises a tuned circuit C 1 , L 1  coupled by a loop L 2  to output terminals c and d, and a resistance R 2  shunted by capacitor C 8 . Changes in voltage across R 2 , at modulation frequencies, alter the base-to-collector voltage thereby varying the phase and the capacity simultaneously. The emitter circuit includes a choke Dr and a resistor R 4  which provides negative feed-back for the modulation frequencies, positive feed-back being provided by the virtual capacitance C 7 . Bias to the base is provided from a potential divider R 1  through a resistance R 3 . In modified circuits R 4  is omitted (Fig. 5, not shown), and R 2  and C 8  are omitted (Fig. 4, not shown). In another arrangement, Fig. 3 (not shown), the collector is earthed and the tuned circuit is connected to the emitter and inductively coupled to the base. The power supply is stabilized by a Zener diode.
Patent GB-676791-A (GB)
Title: Improvements in or relating to the preparation of a fibrous pap for the manufacture of various articles
Inventor: SLUITER GERRIT JOHANNES
IPC: C08L7/02
Filed: 1949-09-12
Abstract: 676,791. Fibrous compositions. NEDERLANDSCHE FABRIEK VAN CELLA PRODUCTEN N.V. Sept. 12, 1949, No. 23523/49. [A Specification was laid open to inspection under Sect. 91 of the Acts, March 31, 1950]. Class 70 [Also in Group VIII] Fibrous pap is obtained by adding a uniform suspension of individual fibres in an aqueous dispersion of an adhesive, leaving the mixture to stand to effect prolonged interaction, beating the fibres thoroughly and then working up with rubber in an aqueous dispersed form. The adhesive may be vegetable protein glue obtained from gluten; dextrin, swelled starch, methyl cellulose, gum tragacanth, resins, and meat, fish and bone glues including those derived from casein and albumen. The preferred fibrous material is chemically free cellulose in the form of wadding or pulp from wood or straw. The latex which may be of natural or synthetic rubber is preferably of about 60 per cent concentration. Chalk, gypsum, cement, soaps, pigments, asbestos, alum, borax, and accelerators may also be added. At a suitable dilution, the mixture may be applied to walls, ceilings and furniture by spraying or brushing.
Patent GB-204337-A (GB)
IPC: C01B31/36
Filed: 1923-09-20
Abstract: Boron carbides having a proportion of carbon greater than that in B6C but not more than 30 per cent, such as B3C, are obtained by fusing a mixture of boron, boron carbide (B6C) or boron nitride with the requisite quantity of carbon.  The product is rapidly cooked to prevent decomposition with the separation of graphite.  The process may be effected under pressure, which facilitates the solution of the carbon.  The ingredients may be mixed and formed into rods which are then heated by an electric current, the fused material being allowed to drop off, or a molten mass of boron or boron carbide may be heated in coal smoke until sufficient carbon has been absorbed.  To increase the strength of the product small quantities of metals having a high melting-point such as tungsten or titanium or the carbides of these metals may be added.ALSO:Boron carbides having a greater proportion of carbon than has B6 C, but not more than 30 per cent of the whole, such as B3 C are obtained by fusing a mixture of boron, boron carbide (B6 C) or boron nitride with the requisite quantity of carbon.  The product is rapidly cooled to prevent decomposition with the separation of graphite.  The process may be affected under pressure, which facilitates the solution of the carbon.  The ingredients may be mixed and formed into rods which are then heated by an electric current, the fused material being allowed to drop off.  Or a molten mass of boron or boron carbide may be heated in coal smoke until sufficient carbon has been absorbed. To increase the strength of the product, small quantities of metals having a high melting-point such as tungsten or titanium or the carbides of these metals may be added.
Patent GB-388381-A (GB)
Title: An apparatus for cutting screw-threads on tubes
IPC: B23G1/32
Filed: 1931-08-21
Abstract: 388,381. Milling screws. LEHNER, L. and LEHNER, J., 8, Glasauergasse, Vienna. Aug. 21, 1931, No. 23604. [Class 83 (iii).] Screw-threads are cut on tube-ends by a device which depends upon the epicyclic movement of a circular cutter around a main spindle anchored to the tube, the driving mechanism and cutter spindle being completely contained in a housing and operated by a projecting hand crank. The spindle 1, rigidly secured to the tube 2 by a tapered draw-bolt 5, is threaded over part of its length, the pitch being the same as that required to be cut on the tube a nut 8, rigidly attached to a toothed disc 10, fits over the thread and is capable of rotation but is secured against axial movement relative to the housing 9. Slidably keyed to the spindle 1 is worm wheel 11, also secured against axial movement relative to the housing, this is engaged by a worm, driven through spiral gears 27, 27<1>, Fig. 2, from a hand-rotated shaft 18; this shaft also drives the cutter 22 through gearing 25, 23. The cutter spindle boss 20 is integral with a plate 19 which can oscillate about the pillar 17 to vary the position of the cutter, a scale being provided for setting, Fig. 3. A spring-pressed pawl 15, which normally prevents rotation of the disc 10 relative to the housing, is disengaged when it is desired to retract the cutter to the beginning of the thread, this being effected on unscrewing the nut 8 by turning the disc 10, thus avoiding turning back the handle 18 and the housing. The teeth on the disc 10 are numbered so that the cutter may be returned to its exact previous position or positions according to whether a single or multi-start thread is being cut.
Patent GB-961901-A (GB)
Title: Position selector device for wells
IPC: E21B23/08
Filed: 1962-06-20
Abstract: 961,901. Locating magnetic bodies. SHELL INTERNATIONALE RESEARCH MAATSCHAPPIJ N. V. June 20, 1962 [June 22, 1961], No. 23770/62. Heading G1N. [Also in Divisions E1 and G4] A position-selector device 34 adapted to pass through a well pipe (not shown) comprises a body 37, 38, 39 latching means 71 carried within the body, a counter mechanism 43 connected to actuate the latching means at a preselected positon in the pipe, and magnetic-type counter-actuating means 40, 41 carried by the body and adapted for stepwise actuation of the counter mechanism in response to movement past marker means spaced along the pipe and having a magnetic permeability different from that of the rest of the pipe. The device is assembled with a well tool or instrument 32 and motor swab elements 33, 33a, parts of the assembly being connected by flexible joints 35, 35a, 36, 36a. The assembly is pumped down the well pipe which includes marker means comprising non-magnetic sleeves and has an enlargement beneath each sleeve. The counter actuating means comprises a core 40 and coil 41 connected to actuate the counter 43 which is pre-set to cause a relay 44 to pass current from a battery 45 to an explosive charge 47 when the device has passed the number of sleeves corresponding to the preselected positon and enlargement. Detonation of the charge moves a piston 51 to the position shown in Fig. 4 forcing a valve 53 so that the well fluid within the pipe passes through a port 55, groove 54, and duct 60 to a space 61 beneath a piston 57. The resultant upward movement of the piston 57 moves a blocking member 70 upwardly, the rate of movement increasing after a port 66 communicates with a passage 63. After the blocking member moves, the latching dog 71 pivots outwardly to engage the preselected enlargement in the pipe. The pumping pressure on the assembly is reversed so that the parts of a joint 76, 77 separate to permit the swab elements end parts 37, 38 of the device to be pumped from the well. In a modification the blocking member and its piston are moved directly by the force of the explosion of the charge with or without assistance from the pressure of the well fluid. The device may be operated in a well pipe in which the upper sleeve is dispensed with, and the pipe at the lowest enlargement may be shaped to prevent further downward movement of the device.
Patent GB-1602979-A (GB)
Title: Method of and an apparatus for drying a substance on or in print carrier
IPC: B41F23/04
Filed: 1978-05-30
Abstract: The paper web (9) is passed through a drying tunnel (1). Piping (7) and ducts (4, 5) are employed to feed the drying medium to the paper web. The drying medium used is pure superheated steam at from 100 to 180 DEG C at 1 bar. The residence time of the paper web in the zone of exposure to the drying medium is approximately 1 second. The velocity of the drying-medium flow is from 25 to 30 m/s. In the dryer there is a reduced pressure of from 1 to 5 mm water column. The temperature of the drying medium is from 50 to 100 DEG C below the boiling point of the solvent to be driven off. Owing to the temperature gradient with respect to the drying medium, a water condensate film forms on the paper web. This condensate prevents the paper from being overdried. <IMAGE>
Patent GB-639191-A (GB)
Title: Improvements in electric beam switching devices
IPC: H01J31/06
Filed: 1946-08-12
Abstract: 639,191. Automatic control systems for cathode-ray tubes. WESTERN ELECTRIC CO., Inc. Aug. 12, 1946, No. 23858. Convention date, Sept. 20, 1945. [Class 38 (iv)] [Also in Groups XXXIX and XL (a)] In a cathode-ray tube in which the beam is deflected on to one of a number of targets, one or more auxiliary electrodes are provided to hold'the beam on the selected target, the auxiliary electrodes co-operating with auxiliary deflecting means independent of the main deflecting means. In Fig. 1 the beam may be directed on to one of the electrodes 103, 104, etc.; if the beam tends to drop below the selected target, part of it impinges on auxiliary electrode 115 and thereby charges up deflection plate 117 which lifts the beam up again on to the target. In a modification, Fig. 4 (not shown), and Fig. 5, the targets 402, 403, &c. are arranged in a coordinate field as shown, and in front of them are arranged four auxiliary electrodes 417, 418, 419, 420. Each of these consists of a number of parallel elements and each is connected to one of a pair of deflecting plates. The electrodes are so arranged that each target is bounded by one element of each electrode: thus target 406 is bounded at the top by element 423 of electrode 417, at the bottom by element 424 of electrode 418, and at the sides by elements 421 and 422 of electrodes 419, 420. Electrode 420 is connected. to a deflection plate so that when charged it will move the beam to the left in the Figure; thus, if the beam wanders off target 406 to the right it will impinge on element 421 which will produce a restoring deflection. The other electrodes similarly produce appropriate restoring deflections. In another modification, Fig. 6 (not shown) magnetic deflection is used instead of electric.
Patent GB-1501867-A (GB)
Title: Manufacture of tinned copper wire
IPC: B21C37/04
Filed: 1974-05-29
Abstract: 1501867 Drawing; making wires BICC Ltd 22 May 1975 [29 May 1974] 23862/74 Headings B3P and B3A Tin coated copper wires having a diameter of 1 mm. or less are made by applying a coating of tin or tin alloy to each of a plurality of copper or copper alloy wires having a diameter 2-20 times the required finished size and simultaneously drawing the coated wires through a respective series of dies using a multi-line wire drawing machine, the total output of which is at least 3 km./min. The speed of each wire through the machine, which may be of the type described in Specifications 1,403,790 or 1,305,032, does not exceed 700 m./min. or 1500 m./min. The drawing machine, the capstans of which are overdriven, may be operated in line with an electrolytic tin coating apparatus and may be followed by an annealer and insulator or a buncher for twisting the wires together.
Patent GB-1102349-A (GB)
Title: Automatic cam selection for knitting machines
IPC: D04B15/32
Filed: 1966-05-27
Abstract: 1,102,349. Knitting machines. SINGER CO. 27, May, 1966 [1, June, 1965], No.23882/ 66. Heading D1C. In a cylinder and dial, or parallel, machine the height of the forward and reverse stitch cams can be adjusted by successive increments by means at one location on the frame, and returned to zero at another location. In the particular embodiment the first means is selectively operable at the end of oscillations of a reciprocating machine. The stitch cams 109 L, R are mounted on a block 32, secured to the bed, by slides 107 L, R, and are raised and lowered by plungers 114 L, R acting against springs 116 L, R. A centre stitch cam 119, having a pivoted part 126 is mounted between the cams. The plungers are shifted by a column 131 bearing against them, which is raised or lowered by a rotatable shaft 156 engaging a notch 150. The shaft is rotated by a ratchet and pawl mechanism rocked by selective engagement of lever 173 with a cam at the ends of alternate or, in a modification, each stroke. The density of the fabric is therefore progressively varied to knit a shaped collar. At the end of the knitted piece the pawl is disengaged and the cams re-set by a rock 211 and pinion 210, by a movable cam at one limit of oscillation. A second oppositely directed ratchet and pawl mechanism may be provided so that the fabric density may be either increased or decreased.
Patent GB-1286028-A (GB)
Title: Vehicle motion simulator
IPC: G09B9/14
Filed: 1970-05-18
Abstract: 1286028 Flight simulators SINGER CO 18 May 1970 [19 May 1969 (2)] 23917/70 Heading B7W A vehicle motion simulator, particularly for aircraft, has a platform 12, on which may be placed a cockpit, with actuators 24, 40 for pivoting the platform about a pivot point 18 with an hydraulic cylinder 50 for moving pivot point 18 to a position in which actuators 24, 40 are fully retracted and inoperative. Hydraulic jacks 24, 40 are connected to a truss 36 and to the platform 12, roll actuator 24 being connected directly at 16 while pitch actuator 40 is connected through a truss 30 and A-frame 20 to point 14. An A-frame 22 connects pivot point 18 to truss 36. Truss 36, and therefore platform 12, can be moved vertically by actuators 110, (111), Fig. 5 (not shown), which are attached to a fixed base 116 and to bell cranks 66, (68) which are rigidly interconnected by a torsion bar 74 and connected through links 78, (80) to two further bell cranks 70, (72), all the bell cranks being pivotally attached to the fixed base and to truss 36. Base 116 may be mounted on rollers or air bearings to allow horizontal translational movement and yaw motion may be imparted by actuators connected to platform 12.
Patent GB-503599-A (GB)
Title: Improvements in or relating to fuels for internal combustion engines and to means for improving the combustion of such fuels in use
IPC: C10L1/22
Filed: 1937-09-03
Abstract: 503,599. Motor fuels. MACDONALD, D. B. Sept. 3, 1937, Nos. 24118 /37 and 24264/38. [Class 91] Motor fuels are improved by adding wool wax to the fuel or to the induction pipe. The wool wax may also be applied as a coating to the induction pipe or manifold. The wool wax is preferably made by saponifying anhydrous "Lanolin " (Registered Trade Mark) with alcoholic caustic potash, and distilling the unsaponified residue under reduced pressure. The final product consisting of lanolin alcohols may be mixed with lecithin, pyrrole and its homologues, chlorophyll and similar bodies containing the porphyrin nucleus, fatty acid nitriles or distilled bone oil. In examples, I gallon of petrol, benzol, crude oil, alcohol, or a mixture thereof, is mixed with up to 2 grains of wool wax, and 0À5 to 6 g. cone oil or 0À1 to 2 g. chlorophyll. The additions prevent, knocking and carbon formation in the engine.
Patent GB-1039243-A (GB)
Title: Traction-increasing wire structure for embedment in a tire tread
IPC: B60C11/18
Filed: 1964-06-10
Abstract: 1,039,243. Pneumatic tyres. UNITED STATES STEEL CORPORATION. June 10, 1964 [June 11, 1963], No. 24133/64. Heading B7C. An anti-skid tread structure for a pneumatic tyre comprises a base strand of two wires 11, 12 twisted together and, spaced therealong, lengths of wire 13 each bent at its midportion 14 around a strand wire and having portions 15, 16 bent around both strand wires, the end portions 17, 18 being straight and parallel and extending toward the tread surface of the tyre.
Patent GB-469572-A (GB)
Title: Improvements in and relating to the wrapping of articles
IPC: B65D75/08
Filed: 1936-09-04
Abstract: 469,572. Packages. LOESCH, M., (trading as LOESCH SPEZIALMASCHINENFABRIK FUR DIE SCHOCKOLADEN - INDUSTRIE, M.). Sept. 4, 1936, No. 24202. Convention date, Feb. 29. [Class 94 (i)] Bars of chocolate and the like are enclosed in a wrapper 1 which is applied in tubular formation with the edges 3, 4 brought together as shown. The edges are gummed together over their whole length and folded flat on the article, and the projecting portions 5, 6 of the wrapper are flattened and the ends secured by gummed tape 7, 8. The tape may extend beyond the edges of the wrapper as indicated in broken lines, to form tabs to facilitate removal. The end portions are now folded on to the bottom of the article as shown in Fig. 4, the edge portions 9, 10 having been previously turned in. Instead of the adhesive tape, the wrapper may be formed with a portion susceptible to heat sealing.
Patent GB-787692-A (GB)
Title: Improvements in or relating to electron discharge apparatus of the travelling wave type
IPC: H01J23/08
Filed: 1955-08-23
Abstract: 787,692. Magnets; electromagnets. WESTERN ELECTRIC CO., Inc. Aug. 23, 1955 [Aug. 26, 1954], No. 24235/55. Class 35. [Also in Group XL (a)] A travelling wave tube having periodic magnetic focusing is so designed and operated that the out-of-phase electrons which tend to absorb energy from the wave are defocused and the in-phase electrons focused by the periodic focusing field. One of the three focusing parameters Bo, L or V, e.g. Bo, may be varied along the path of beam flow so as to keep the operating point Y in a fixed position. This may preferably be done by decreasing H at the output end by using progressively weaker bar magnets 21, Fig. 2, as by giving the magnets progressively decreasing cross-section or by decreasing the magnetization of each successive magnet. The permanent magnets can be replaced by solenoids, the currents and/or number of turns in each winding being individually controllable. It is stated that for Brillouin flow and to counteract radial space charge repulsion, H may have to increase at the output end, but H must decrease at the output end to keep the operating point properly placed. It is stated that to overcome this dilemma the length of the magnets decreases but their strength increases towards the output end, as in Fig. 4 (not shown), or the permanent magnets can be replaced by solenoids of different strengths. H may be varied only in the second half of the delay line in this region, Fig. 5, by means of magnetic rings 43 of variable spacing or length to keep the operating point in the correct position. The magnetic field producing means in this instance is a permanent magnet or solenoid 39 with polepieces 41, 42. Specifications 757,369, 759,957, [Group VII], 760,033, 760,133, [both in Group XL (a)], 772,000, [Group XXII], and 772,001, [Group XXVI], are referred to.
Patent GB-223720-A (GB)
Title: Suspension means for power driven mechanism for breaking metal, rock or other material
IPC: B02C1/14
Filed: 1923-10-01
Abstract: 223,720. Dovel, J. P. Oct. 1, 1923. Supports for portable machines. - Means for suspending power-driven mechanism for breaking metal, rock or other material comprise a resilient connection between the hammer and a crane or the like. As shown, a crane 1 is provided with suspension tackle engaging a pulley 2 from which is suspended a bail 3. The ends of the bail pass through the head 4 and top flange 5 of a cylinder 6 and are fitted with nuts 7 and washers 8, springs 9 being interposed between the washers and the flange 5. The cylinder is adapted to receive fluid pressure to reciprocate the hammer 17, the construction and operation of which is described in Specification 226,876, [Class 83 (iv), Metals, Working]. Specification 221,093, [Class 83 (iv), Metals, Working], also is referred to.