baber/WOPTO huggingface dataset:
Patent GB-754002-A (GB)
Title: Method of generating and cutting offset face gears
Inventor: MILLER EDWARD WHITNEY
IPC: B23F15/06
Filed: 1954-03-08
Abstract: 754,002. Gear-cutting. FELLOWS GEAR SHAPER CO. March 8, 1954, No. 6714/54. Class 83 (3). A method of generating teeth in a face-gear-blank G conjugate to the teeth of an offset pinion P, consists in locating a gear-shaping cutter C, of greater diameter than the pinion, so that a diameter of the cutter is perpendicular to the face of the blank and intersects a line O<SP>1</SP>-O<SP>1</SP> (O-O) at the same offset e as the pinion axis, and disposing the cutter at an angle N so that the projection of its circumference on a plane perpendicular to the said line is an ellipse C<SP>11</SP> of which the curvature in that portion a-b intersecting the zone of the gear blank closely approximates that of the pinion circumference, and then relatively feeding the cutter and blank in the direction of the offset line O<SP>1</SP>-O<SP>1</SP> (O-O) while rotating them in timed relation. Specification 534,918 is referred to.
Patent GB-299662-A (GB)
Title: An improved bag for the conveyance of goods and for like purposes and means for the manufacture thereof
IPC: B21F27/06
Filed: 1928-03-03
Abstract: 299,662. LebossÚ, A. F., Guyon, Y., and Marty, R. H. C. March 3, 1928. Addition to 245,720. Drawings to Specification. Materials, special for bags.-The free ends of the wires of a bag formed in one piece of hexagonal mesh wire netting as described in the parent Specification are terminated with small metal balls by fusion by a blowpipe, electric soldering or by dipping in a bath, so as to avoid sharp ends.
Patent GB-743669-A (GB)
Title: Improvements in or relating to systems for controlling direct current electric motors
Inventor: MAPP ALFRED GEORGE
IPC: H02P7/06
Filed: 1953-03-11
Abstract: 743,669. Automatic speed-control systems. ROTOL, Ltd. March 10, 1954 [March 11, 1953], No. 6746/53. Class 38 (4). The invention relates to the speed control of a D.C. motor, e.g. driving an alternator for use as a speed reference unit for synchronous control of aircraft engines. As shown, the motor M is. supplied from substantially constant source S through a potentiometer 3 and drives a tachometer generator G, an alternator H supplying a magnetic amplifier 6, and a speed reference alternator A. The speed control field 11 of the motor is controlled through the magnetic amplifier 6 in accordance with the difference between a reference voltage from a potentiometer 9 across the supply and the voltage of the generator G. Additional refinements : (i) the' potentiometers 3, 9 may be ganged ; (ii) a.. carbon pile or other voltage regulator 14 may be inserted in the supply to the reference.potentiometer 9 and the generator field 10 ; (iii) temperature compensating resistors 12, 13 may be inserted in the motor and generator field circuits ; (iv) alternatively, the generator field may be connected in series with the reference potentiometer to provide temperature compensation, Fig. 2 (not shown). Specification 722,216 is referred to.
Patent GB-491848-A (GB)
Title: Improvements in and relating to road construction and to kerb elements and channel elements for use therein
IPC: E01F9/053
Filed: 1937-03-08
Abstract: 491,848. Road signs. JONES, F. W. VALLE-. March 8, 1937, No. 6758. [Class 3 (ii)] [Also in Group X] Road kerbs and channels are fitted with metal plates or panels 2 which are neither corrugated nor indented and which are coated with a vitreous enamel to provide light -reflecting facets. The plate shown is secured to the inclined face of the kerb 1 by pins, dowels or bolts 6. Alternatively, the plate may be embedded in a concrete kerb, or again, the plate may have end portions adapted to engage in the joint between adjacent kerb elements and to be subsequently grouted up. The plates may be rectangular as shown or circular and may be secured to the inclined or upper, or both inclined and upper faces of the kerb.
Patent GB-909839-A (GB)
Title: Improvements in or relating to accumulators
IPC: H01M2/02
Filed: 1959-02-27
Abstract: 909,839. Batteries; joining metal and ceramic or glass. SVENSKA ACKUMULATOR A.B. JUNGNER. Feb. 27, 1959 [March 8, 1958], No. 6845/59. Classes 36 and 53. A metal accumulator case has a glass or ceramic lid fused to the case and to the polepiece passing through the lid. The lid may be made of metal, as shown at 1 in Fig. 2, in which case the polepiece 2 is fixed to the lid by a glass or ceramic bead 3 fused to both parts. Instead of being fused directly to the lid, the bead may be fused to a washer 5 welded to the lid as shown in Fig. 4. Fig. 5 shows a modification in which a resilient metal member 8 is welded to the polepiece and to a glass or ceramic ring 3.
Patent GB-198774-A (GB)
Title: A fabric comprising a warp of straight parallel cords or yarn strands
IPC: D03D15/00
Filed: 1922-03-08
Abstract: 198,774. Stockton, J. P. March 8, 1922. Corded fabrics; ground weaves.- A fabric especially for use in tyres, comprises a warp of straight parallel cords 1 or yarns lying in a single plane without undulation weft strands 3 lying on opposite sides of the warp without undulation, and binder warp strands 2 interlocking the wefts and maintaining the cord strands in position, the warp and binder strands being spaced apart so that they will be surrounded with a coating of composition when it is applied to the fabric. Each weft is positioned nearer to one than to the other of the opposite pair of wefts.
Patent GB-491204-A (GB)
Title: Improvements relating to the securing of tyres to wheels
IPC: B60B25/04
Filed: 1938-03-04
Abstract: 491,204. Vehicle wheels. KRONPRINZ AKT. - GES. FUR METALLINDUSTRIE, and LUDWIG, W. March 4, 1938, No. 6881. [Class 144 (ii)] A wheel-rim e comprises a fixed tyre-retaining flange d and a detachable flange h secured by an intermediate divided ring g which is slidably fitted on the rim-base and has a coned portion adapted to be jammed (on inflation of the tyre) between the flange h and the coned edge f of the rim. Fig. 2 shows a modified form of detachable flange, and a pin k adapted to pass loosely through the ring g and the edge of the wheel-disc c for holding the parts assembled without the inflated tyre.
Patent GB-660791-A (GB)
Title: Improvements in or relating to navigational apparatus
IPC: G01C21/14
Filed: 1948-03-05
Abstract: 660,791. Counting-apparatus. BENDIX AVIATION CORPORATION. March 5, 1948 [March 6, 1947], No. 6940/48. Class 106 (i). A navigational appara. tus, e.g. for aircraft, consists of a unit producing data representing latitude and longitude, and remote data - reproducing means comprising latitude and longitude indicating counters 37, 77 respectively, each wheel of which has two rows of numerals, Fig. 5, corresponding to the two hemispheres, and manually movable means 58, 89 for selectively exposing to view the appropriate row of each wheel and preselecting the same row for co-operation with recording means. As shown in Fig. 2, latitude and longitude are indicated on counters 13, 82 respectively, also having separate numeral rows for each hemisphere and driven by gearing (not shown), and time is indicated on a counter 124. These indications are reproduced on counters 37, 77 and 145 respectively and may, if desired, be printed on a paper tape 95. Each rotation of the shaft of counter 13 causes a pin 16 or 17 (depending on the direction of rotation) on a disc to close a switch 18 or 19 to send an impulse to a solenoid 26 or 25, Fig. 3. Each solenoid has its plunger connected by a pivoted lever 45 or 42 to a pawl 41 or 40 which, when the solenoid is energized, engages a ratchet 39 to move the counter 37 one step in one direction or the other. Movement of the counter 82 is similarly repeated by counter 77 which is similar in all respects to counter 37. The counter 124, which is driven by, or may be replaced by, an ordinary clock mechanism, similarly causes impulses to be sent to a solenoid 142, through switch 131 and relay 134, thus causing a pawl 151 to step on the ratchet 150 of counter 145. The numerals of counters 37, 77, 145 are raised so that they can be used for printing as well as indicating, and diametrically opposite numerals correspond. When printing is required, a switch 115 is closed to energize a solenoid 112 to move a bar 96 having hammers such as 102, Figs. 3 and 5, which urge the tape 95 and inking ribbon 107 into contact with the counter wheels, directly for counter 145, and through row-selecting spring pads 110 for counters 37, 77. After printing, the tape is manually drawn out and torn off. The solenoid 112 may alternatively be operated by clockwork. The pads 110 for counter 37, for example, are carried by spring arms 108 on an extension of a shutter 58 which has windows 59 for indicating only one row of numerals of each wheel at a time. The shutter may have hemisphere indications (N and S) thereon, and is moved, when changing hemispheres, by turning a knob 64, Fig. 2, which operation also closes a switch 65 or 72 to energize solenoid 25 or 26 to move the counter one step so that the indication of the new rows of numerals is zero. Resetting knobs such as 56 are each associated with a crown wheel which may be engaged with the ratchet, e.g. 39, of the corresponding counter by movement against a spring such as 57. The remote indicating and printing mechanism may be located in a housing 160.
Patent GB-1446521-A (GB)
Title: Manufacturing a tubular conductor
IPC: H01B13/00
Filed: 1974-02-15
Abstract: 1446521 Making superconductors SIEMENS AG 15 Feb 1974 [15 Feb 1973] 7076/74 Addition to 1397785 Heading B3A [Also in Division H1] A method of making a tubular conductor comprising a layer of superconductor niobium and a layer of a second metal, which is not superconductive at a temperature at which the niobium is superconductive, includes producing a strip comprising the two layers and having niobium fillets along its edges, bending the strip to form a tube with the niobium fillets in abutment and connecting the niobium fillets together, the strip being formed by coating the narrower sides and a wider side of a rectangular cross-section member 7 of the second metal. A copper member 7 is placed in a fused electrolyte, e.g. 16.2% K 2  NbF 7 , 26.2% LiF, 10.4% NaF and 47.2% KF, which is maintained at 740C approx by a furnace 6. A trough shaped, niobium anode 8 is placed near the member 7 so that niobium is deposited on one wider side and both narrower sides of the member. Using a current density of 40 mA/cm<SP>2</SP>, niobium is deposited at about 0.6 Ám thickness per minute. The chamber 2 in which the plating is performed is evacuated and then flushed with an inert gas, e.g. argon. After coating, the member is allowed to cool in a protective atmosphere and any niobium deposited on the other wider side is removed by grinding. It is then cold rolled in a number of stages with a 95% reduction in thickness to form a strip. Edge rollers are used during rolling to prevent widening of the strip and annealing may be carried out between rolling stages. The strip is formed into tubing with either the copper or niobium external and abutting niobium webs 12, 13 are electron beam welded. In an alternative embodiment, Fig. 5 (not shown), two copper members (21), (22), are placed face to face within a tubular anode (23) and coated with niobium on all sides. After coating the members are parted to provide a pair of members each coated on three sides.
Patent GB-286882-A (GB)
Title: Improvements relating to the connection of a tube with a thick walled boiler drum or the like
IPC: F22B37/10
Filed: 1927-03-14
Abstract: 286,882. Imray, O. Y., (International Combustion Engineering Corporation). March 14, 1927. Plates and the like, jointing tubes to.-In securing a boiler tube 4 to the thick-walled drum 1 of a high-pressure boiler the tube hole 2 is bored in the usual manner after which it is countersunk from the outside, to form a portion 3 of slightly increased diameter, and the tube, which is inserted in the tube hole with the end 5 projecting somewhat beyond the inner side of the drum, is expanded in that portion of the hole having the smaller diameter. The end 5 of the tube is then flared or beaded. A copper .ferrule 6 may be slid over the tube 4 into the countersunk portion 3 of the tube hole, or alternatively the space is filled with asbestos &c.
Patent GB-957759-A (GB)
Title: Girdle and method of making the same
IPC: A41C5/00
Filed: 1962-02-23
Abstract: 957,759. Girdles. INTERNATIONAL LATEX CORPORATION. Feb. 23, 1962 [Feb. 23, 1961; Feb. 7, 1962], No. 7112/62. Heading A3V. A seamless rubber or like girdle 1 with a seamless knitted nylon lining 2 bonded thereto is made by spraying or dipping a form 15 or a form 40 in latex several times to deposit a sufficient thickness to form a sufficient thickness to form a rubber sheath, depositing a final layer of tacky latex or other adhesive, stretching the lining 2 on a transfer rack 22 or 42 over the form 15 or 40, releasing the sleeve lining 2 by withdrawing the rack so that the lining contracts on to the adhesive layer and pressing the lining to the sheath by means of a conventional roller (Fig. 15, not shown) or a pneumatic tube 52. Specification 636,344 is referred to.
Patent GB-124619-A (GB)
Title: Improvements in Means for Using Mule Cops in Automatic Looms.
Inventor: JACKSON ARTHUR JAMES
IPC: B65H75/10
Filed: 1918-04-30
Abstract: 124,619. Jackson, A. J. April 30, 1918. Shuttles; shuttles, changing bobbins &c. in, automatically.-Carriers as described in Specification 104,608, [Class 120 (ii), Spinning, twisting, &c.], for cops produced in a spinning-mule for use in the shuttles of automatic or other looms are connected to a ringed Northrop or like boss either upon a short spindle secured to the boss, or to the boss itself when no spindle is used, by means external of the cop carrier. In the form shown in Fig. 2, the cop carrier c is secured upon the short spindle b of the ringed boss a by a spring catch d adapted to engage an enlargement of the carrier. A spring e may be placed between washers f on the spindle, and the catch d may be rigid and be adapted to engage a groove in the carrier in the manner of a bayonet-joint. In the form shown in Fig. 3, the short skewer b has a ball end engaging a wood or other plug a' in the boss a, and is normally held in the vertical position by a bent spring f<1> secured to the boss and embracing the skewer. The carrier c is placed on the skewer by inclining the latter to the dotted position, and is secured by a retaining-device g. Modifications are described in which an angularlymovable skewer is hinged to a spring plate, or attached to the inner end of a coil spring secured to the boss. In another form, the cop carrier c, Fig. 9, is held between the hinged halves of the ringed boss a, curved arms p being adapted to rest on the top of the collar c' and the halves being held in place by a hinged ring n, which can be snapped over a bead o. According to the Provisional Specification, the retaining means for the cop carrier may be in the form of a hinged spring catch.
Patent GB-555750-A (GB)
Title: Electric wave oscillation generators
IPC: H03B5/34
Filed: 1942-05-29
Abstract: 555,750. Valve generating circuits. REDIFFUSION, Ltd., and ROGERS, E. W. May 29, 1942, No. 7316. [Class 40 (v)] An oscillation generator comprises a thermionic valve and switching means serving to couple a control electrode thereof to either of two alternative frequency determining circuits at will, one of which circuits being a combination of inductance and capacity, the other circuit being a piezo-electric crystal resonator. As shown, switches 2, 10 connect the grid and cathode of valve 1 to an inductance 6 tuned by a capacity 8 which is ganged to a capacity 21 for tuning an anode inductance 19. Wave range switches 4, 5, 18 enable inductances 7 and 20 to be substituted for working on a lower wave range. When switches 2 and 10 are moved to the alternative position, the grid is connected to a piezo-electric crystal 9, and the cathode is connected to a circuit 12, 13 tuned to a somewhat lower frequency. The anode circuit is tuned by condenser 21 either to the crystal frequency or to a harmonic. When inductance 20 is used in the anode circuit, an additional condenser 25 is connected in parallel with condenser 13 by means of a switch 24.
Patent GB-292243-A (GB)
Title: Improvements in apparatus for measuring and depositing plastic substances
IPC: A23G1/20
Filed: 1927-03-16
Abstract: 292,243. Baker Perkins, Ltd., An ciens Etablissements A. Savy Jeanjean et Cie Soc. Anon., Wilson, G. D., and Bunce, J. P. March 16, 1927. Feeding and measuring materials. - In measuring and feeding machines of the type in which two toothed rollers co-operate with the inner wall of the measuring receptacle to form a sealed measuring chamber with an extrusion opening to discharge, an oscillatory plate or chamber is mounted between the rollers to form the completing wall of the measuring chamber. Fig. 1 shows a jacketed vessel provided with stirrers b and feed wheels b<1>. The measuring rollers c, c<1> are separated by the plate d pivoted at d'. Between successive measuring operations, during which the rollers rotate and the discharge valve e<1> is opened, the valve is closed and the rollers brought to rest. Fig. 2 shows a hollow valved member f mounted between the rollers which enables the rollers to rotate continuously instead of intermittently. The valves g and e<1> are linked so as to open and close alternatively. Any excess material trapped in the measuring chamber thus is redelivered to the main bulk through the valve g. The container, measuring chambers, and delivery openings may be divided so asto charge several receptacles at once.
Patent GB-182516-A (GB)
Title: Improvements relating to thermionic valves particularly applicable to wireless signalling
IPC: H01J21/18
Filed: 1921-03-07
Abstract: 182,516. Donisthorpe, H. St. J. de A. March 7, 1921. Drawings to Specification. Vacuum tubes.-In a thermionic valve subject to the influence of a controlling magnetic field, the field is arranged to act substantially parallel to the direction of electronic flow. The magnetic field may be produced by a coil surrounding the valve and having its axis substantially along the direction of electronic flow, or alternatively, one or more adjustable permanent magnets may be employed. The coil may be mounted so as to be adjustable longitudinally and angularly, for example, on a universal mounting. The coil may be internal or external to the valve and, in some cases, the filament, the grid or the plate may be so formed as to produce the required field. For directly controlling the electronic flow, the coil may be connected to a source of current in series with an adjustable resistance. In some cases, a combination of two coils may be employed. The magnetic field is found to have the greatest effect for ' soft ' valves, and the magnetic coil may be used for testing the hardness of a valve by connecting a battery, a variable resistance and an ammeter in circuit with the coil; and a milliammeter in the anode circuit, the degree of hardness being measured by the change in anode current corresponding to a given value of the current in the coil. One Provisional Specification refers to Specification 162,338.
Patent GB-722439-A (GB)
Title: Pressure ratio control mechanism
IPC: B64D13/08
Filed: 1952-03-21
Abstract: 722,439. Ventilating. GARRETT CORPORATION. March 21, 1952 [April 5, 1951], No. 7333/52. Class 137. [Also in Group XXIX] In an air conditioning system for an aircraft cabin in which a supercharger 120 supplies air to a compressor 123 driven by a turbine 120 in turn supplied with cooled air from a heat exchanger 125, a valve 10 (see Group XXIX), arranged in a by-pass conduit 133 across the turbine 128 opens when the ratio of the pressure in the outlet conduit 122 of the supercharger to the ambient atmospheric pressure exceeds a predetermined value. The opening of the valve 10 relieves the back pressure on the supercharger and therefore prevents overheating thereof. The ambient atmospheric pressure is applied to control the valve 10 through a pipe 96 and supercharger outlet pressure through a pipe 104.
Patent GB-214797-A (GB)
Title: Improvements in or relating to the manufacture of cellular or corrugated fibre board
IPC: B31B1/90
Filed: 1923-03-14
Abstract: 214,797. Thompson & Norris Manufacturing Co., Ltd., and Minch, H. March 14, 1923. Corrugated paper; corrugating apparatus.-In reinforcing corrugated fibre board used for making folded boxes, separate reinforcing strips or tapes of paper, cloth, or the like are applied to fhe board during manufacture and before the board is cut, slotted, scored or otherwise treated. In the apparatus shown, the cardboard is corrugated and provided with a backing A<4>. Reinforcing strips C are gummed at F<2> and applied to the backing A<4>, and a facing A<5> applied. The sheet so produced is then slotted at X, Fig. 2, scored at Z, and the blanks cut off and provided with an adhesive strip B. The reinforcing strips are used on the inside of the box.
Patent GB-827676-A (GB)
Title: Method and apparatus for heat treating semi-conductor material
Inventor: WARREN REGINALD WALTER
IPC: C30B13/14
Filed: 1957-03-07
Abstract: <PICT:0827676/III/1> Semi-conductor material, such as silicon or germanium, is zone refined in an elongated hollow walled crucible C, shown in cross-section in Fig. 2, of metal of high electrical and thermal conductivity, by melting a limited zone of the material B by means of high - frequency heating coils A, and causing the molten zone to traverse the length of the material while circulating liquid F through the hollow walls of the crucible to cool the crucible.  The crucible may be made of copper, silver or gold. When silicon is treated it may be heated initially by a susceptor to a temperature at which eddy currents are induced therein.  The crucible may be arranged with the material below the centre of the coil so that the reaction between the electromagnetic field of the coil and the field due to the currents induced in the metal of the crucible with the field induced in the molten zone of the material, lifts the material out of contact with the crucible.
Patent GB-1491637-A (GB)
Title: Apparatus for governing an exhaust stack flap valve of an oil-combustion plant
IPC: F23L11/00
Filed: 1976-02-26
Abstract: 1491637 Burners UNITED STIRLING (SWEDEN) AB & CO KB 26 Feb 1976 07579/76 Heading F4T A flap valve in the exhaust stack 23 of an oil combustion apparatus is operated by a servomotor 21 supplied with oil by a pump 7 which also supplies the burner 12 through a valve 8 set to open when the pump output reaches a predetermined value. A further valve 11 opens if the oil pressure supplied to the burner becomes excessive. To prevent a premature increase in pressure in the pump output line if the servomotor sticks when the apparatus is started up, a valve 19 opening at a lower pressure than the valve 8 is provided in a by-pass line 18 which is eventually closed by an obturator or the servomotor piston. An electric motor driving the pump 7 or a motor in a dependent circuit drives a fan delivering combustion air. An electric ignition circuit starts simultaneously with the pump.
Patent GB-217641-A (GB)
Title: Improvements in or relating to the pasteurisation of milk
IPC: A23C3/03
Filed: 1923-03-16
Abstract: 217,641. Parker, W. T. W., and Co-operative Wholesale Society, Ltd. March 16, 1023. Drip, catching. - In a pasteurizer of the " holding " type with stationary holding vessels, the outlet from each vessel is controlled by a valve having a separate cam-actuated device for catching drip when the valve is closed and preventing it from passing to the storing and cooling vessels. The outlet valves d of the vessels a<1> - - a<4> are of the lift type and are actuated in apropriate rotation by levers e operated by cams g<1> on a shaft g. Below each valve is a tray m provided with a spout m<1> and mounted on a bent lever m<2> adapted to be actuated by a cam g<2> on the shaft g so as to move the tray out of the way when the valve d is open and return it when it is closed.