baber/WOPTO huggingface dataset:
Patent GB-1457171-A (GB)
Title: Piezoelectric burner igniters and systems
IPC: F23Q3/00
Filed: 1974-01-22
Abstract: 1457171 Spark generator; burners A C MERCER and O R HILLIARD 22 Jan 1974 [22 Jan 1973] 02986/74 Headings F4F and F4T A spark generator comprises a cylinder 29, Fig. 1, with an inlet at one end, a piezoelectric crystal 35 secured to the opposite end, a piston 51 having a hammer 50 secured thereto and being slidable within the cylinder and arranged to strike the crystal in response to fluid pressure applied at the inlet and a return spring 52 acting on the piston to return it to the inlet end of the cylinder. Crystal 35 is keyed to the cylinder 29 at 36, the assembled igniter is located on a propane-type torch 10 by an adaptor 26, and piston 51 is held in the armed position by a spring-urged detent 71. In operation, a valve 12 is opened and gas from container 11 flows through an orifice 18, a Venturi-section 17, and metal fins 24, to the discharge end of the torch. When the gas pressure at inlet 57 reaches a predetermined value detent 71 is released and hammer 50 strikes crystal 35 to thus ignite the torch. In a modification, pilot burner 16 and single-shot igniter 25, Fig. 4, are incorporated in a heating device having a main burner 76, and a valve assembly 78 connected to a gas container 80. In operation, liquid fuel is supplied to burner 76 through a conduit 85 and this fuel is also supplied to a chamber 106 in valve 78. Piston 91 is moved downwardly to close passage 97 and open outlet 100, so that gas which has accumulated in a chamber 107 passes through a passage 113 and outlet 100 to pilot burner 16 and igniter 25, so that the pilot burner and subsequently the main burner 76 are ignited. In a further modification, a multiple-shot igniter (134), Fig. 5 (not shown), is provided.
Patent GB-969254-A (GB)
Title: Improvements in electric heating pad
IPC: H05B3/34
Filed: 1962-01-26
Abstract: 969,254. Electric heating pads. GENERAL ELECTRIC CO. Jan. 26, 1962 [Jan. 30, 1961], No. 3002/62. Heading H5H. A flexible insulated heating element includes a wire wound helically on a core, and enclosed in a thermoplastic material formed with a plurality of outwardly extending ribs, which material include a limited proportion of conductive particles dispersed therein, whereby to increase the thermal conductivity of the material without seriously affecting the electrical resistivity. Wire 8, Fig. 2, is wound helically on a glass fibre core 9, and covered by an extruded layer 10 of P.V.C. formed with ribs 11 and containing 20 to 25% carbon black; silica, magnesium oxide, silver, or copper particles may alternatively be employed. A heating pad, Fig. 1, may include the composite structure 2, stitched to a cotton linette carrier 1, and enclosed within a waterproof envelope 4 of a rubberized fabric or a P.V.C. composition. The heating element may alternatively be attached to the carrier 1 by adhesive, or by laminating. Specification 969,253 is referred to.
Patent GB-510263-A (GB)
Title: Improvements in and connected with the jointing of pipes to tanks, cylinders, pipes and the like
IPC: F16L41/08
Filed: 1938-01-31
Abstract: 510,263. Jointing pipes to walls etc.; tube expanders; soldering: FOWLER, C. R., and GENERAL INVENTIONS, Ltd. Jan. 31, 1938. No. 3006. [Class 99 (i)] [Also in Group XXII] A nipple for jointing a pipe to a wall of a tank, cylinder or another pipe comprises a metal tube 1 provided with an internal bead 4 and having a part 3 of reduced diameter forming a shoulder 2 against which is carried a hollow ring 5 charged with solder 6. The bead is expanded by a tool 7, 8, 10 and the solder 6, after heating, forms a tight joint between the nipple, the ring 5 and the wall 13. The reduced part of the nipple and the ring 5 may be tinned at 14 to induce the solder to flow. When the wall 13 is curved the bead and the end of the nipple and the hollow ring are made to correspond to the wall curvature. In order to reduce strain on the wall of the tank or the like the free end of the nipple may be steadied by a stay. The stay may take the form of a disc around the nipple near its free end supported by side members secured to the wall of the tank by feet tinned on the underside and heated so that they adhere to the wall.
Patent GB-1026535-A (GB)
Title: Improvements in or relating to variable speed driving systems
Inventor: HALL PHILIP MERRICK
IPC: H02P29/00
Filed: 1962-01-26
Abstract: 1,026,535. Automatic speed control. ELECTRIC & MUSICAL INDUSTRIES Ltd. Jan. 24, 1963 [Jan. 26,1962], No. 3039/62. Heading G3R. [Also in Division H2] The speed, e.g. of a magnetic tape capstain 1, is controlled by the selective and progressive energisation of an electromagnetic clutch 5 or brake 6 according to whether a speed signal is above or below a reference level. The signal is generated by a strobe disc 13 and photo-cell 12 whose output pulses are "squared" at 14 and converted to a D.C'. voltage of a magnitude proportional to frequency at 15. Half wave rectifiers 18,19 detect the polarity of the difference signal which is applied through a D.C. amplifier 20 or 21 to the clutch or brake respectively. Speed adjustment may be by adjustment of the reference at 17 or by providing a number of tracks on the strobe wheel, each to produced the same frequency when the wheel rotates at different speeds, and selecting the appropriate track either by switching to its; own photocell or by radial movement of a single photocell. The clutch and brake may be of the eddy current type (see Division H2) or they may be of the powder type and combined in a single unit with the strobe wheel. A driving motor 3 may be A.C. shaded pole or squirrel cage, or D.C. shunt or compound wound.
Patent GB-828036-A (GB)
Title: Papermaking pulp, printing paper and processes of making the same
IPC: D21C3/06
Filed: 1958-01-30
Abstract: 828,036. Preparation of paper pulp. HAWAIIAN DEVELOPMENT CO. Ltd., and CROWN ZELLERBACH CORPORATION. Jan. 30, 1958 [Feb. 1, 1957], No. 3065/58. Class 96. Lignocellulosic pulp is made from materials other than wood, e.g. from sugar cane bagasse, depithed bagasse, wheat straw, &c., by softening in aqueous sulphite liquor of pH value 5 to 11, e.g. using sodium, magnesium or ammonium sulphite, the proportion of liquor to lignocellulosic material being 2: 1 to 100: 1, the mixture being maintained at 50‹ to 250‹ F. until the lignocellulose has consumed 0.1 to 4% of its weight of sulphite compound. The material is then mechanically defibred, e.g. using a single or double disc refiner, e.g. at atmospheric pressure and at 190‹ F. using spray water to bring the consistency to 9%. The pulp may be bleached and may be used with or without a minor proportion of chemical wood or like pulp for the manufacture of printing paper. The brightness may be improved by bleaching using peroxides, hypochlorites, or hydrosulphites.
Patent GB-417754-A (GB)
Title: Improvements in or relating to electric current collectors of the slider shoe type
IPC: B60L5/08
Filed: 1934-01-30
Abstract: 417,754. Current collectors for electric vehicles. WESTINGHOUSE ELECTRIC & MANUFACTURING CO., East Pittsburg, U.S.A.-(Assignees of Wahlberg, N. A. ; 412, Ross Avenue, Wilkinsburg, Pennsylvania, U.S.A.) Jan. 30, 1934, No. 3166. Convention date, Feb. 23, 1933. [Class 104 (iii).] A shoe collector comprises a main body member 10 formed of relatively soft metal and having a pair of lips 11 forming a groove 12 for the conductor. The body is grooved at 19 to receive a mass 17 of relatively hard metal fused into it. The groove 12 is machined out as shown in .Fig. 6, so that when the thin residual layer of soft metal is worn through, the hard metal takes the wear.
Patent GB-1301742-A (GB)
IPC: F16K5/16
Filed: 1970-11-26
Abstract: 1301742 Valves UZINA MECANICA GAS METAN MEDIAS 22 Jan 1970 [24 Jan 1969] 3234/70 Heading F2V] Enhanced sealing of a rotary conical plug 2 with respect to its housing I when the plug is in its closed position, is achieved by associating with the operating handle 5 a mechanism whereby the plug is moved axially towards its seat after being turned to the off-position and axially away from the seat before being opened, respectively. In order to move the plug from the position shown to the fully closed position, the operating handle 5, which is restrained from axial movement by a bridge 7 and which has formed integrally therewith a screwthreaded extension 4, is moved clockwise as seen in the drawing. Upon initiating such movement, a pin 6, depending from the handle free end, engages a stop 10, the stop being pivotable about pin 11 fixed to a flange 3 of plug stem a and being biased into the position shown by a spring 12. Such engagement causes the flange 3, and hence the plug 1, to be rotated with the handle until a shoulder c on the flange abuts one of the two bridge pins 8. Simultaneously with the occurrence of such abutment, the stop 10 is moved out of engagement with pin 6 by virtue of its free end e moving across pin 9. Thereafter, further clockwise rotation of handle 5, resulting in axial movement of the plug, is made possible by the provision of an arcuate groove b in flange 3, within which groove the handle pin 6 moves freely. When opening the valve, axial movement of the plug takes place whilst pin 6 travels in groove b and rotational movement once the pin can no longer travel freely within the groove.
Patent GB-764290-A (GB)
Title: Improvements in load handling trucks
IPC: B66F9/14
Filed: 1955-02-03
Abstract: 764,290. Lift trucks. COVENTRY CLIMAX ENGINES, Ltd. Feb. 3, 1955 [Feb. 23, 1954], No. 3253/55. Addition to 750,207. Class 78 (3). Lateral movement of the fork 10 or other load support described in the parent Specification is effected by rotation of a pinion 5 meshing with a rack 4 secured to the lifting carriage 3. The pinion 5 is rotated through chain and sprocket gearing 6, 7, 8 by a cylinder 13 which is secured to chain 8 at 14 and is movable on a piston 12 secured to the load carrier.
Patent GB-1087171-A (GB)
Title: Friction welding machines
IPC: B23K20/12
Filed: 1965-01-26
Abstract: 1,087,171. Welding by pressure. AMERICAN MACHINE & FOUNDRY CO. Jan. 26, 1965 [Jan. 30, 1964], No. 3345/65. Heading B3R. [Also in Division F2] In a friction welding machine having first and second work-holding means to be relatively rotated and means for urging the work-holding means together, fluid pressure is provided for counteracting the force exerted on one of the work-holders which is on a part journalled in a bearing, to relieve axial loads on the bearing. A main frame member 20, Fig. 1, is supported from a base 10 and carries in bearings a torque tube 22 on which replaceable disc weights 27 are bolted. The tube 22 is rotated through a belt drive by a motor 30 and is connected by an air clutch 42 with a spindle 36 mounted in a housing 37 which spindle carries a draw bar operated chuck 43. A further draw bar operated chuck 47 is carried on a slide 48 on ways on the member 20 and brackets on the slide are fastened to piston rods 51, 52 extending from hydraulic cylinders 40, 41 attached to the housing 37. Pressure air is connected to a tube 55 which supplies a line 54 connected to an air clutch on the shaft of motor 30 and supplies lines connected to the air clutch 42 and to pneumatic devices 45 and 63 operating the draw bar chucks. An hydraulic pump 65 on the motor 30 supplies fluid from a reservoir 18 to either end of the cylinders 40, 41 and to the housing 57. A cylinder 80, Fig. 3, within the housing 37 supports ball bearings 84, 85 on the spindle 36. A member 86 on the spindle between the ball bearings has an annular projection 87 forwardly of an annular projector 91 on a member 89 on the cylinder 80. In operation workpieces are secured in the chucks, the motor 30 is started and the air clutches 33 and 42 are operated so that the motor drives the spindle 36. When a desired speed is reached the cylinders 40, 41 are actuated to draw the workpieces together and the clutch 33 is disengaged so that inertial energy from the discs 27, tube 22 and spindle 36 &c. is dissipated in the workpieces. When the flywheel disc falls below a given speed as sensed by a tachometer the clutch 42 is disengaged and the workpieces come to a stop with the flywheel still rotating. As the workpieces are forced together the axial load on the spindle 36 is balanced by fluid pressure supplied to the housing 37 between the projections 87, 91, the total surface area of the projection 87 being equal to the working area of the pistons in the cylinders 40, 41.
Patent GB-1180852-A (GB)
Title: Ventilation System.
Inventor: JENSEN DONALD DELBERT
IPC: F24C15/20
Filed: 1968-01-22
Abstract: 1,180,852. Ventilating cookers. D. D. JENSEN. 22 Jan., 1968, No. 3355/68. Headings F4V and F4W. In a ventilating system for removing airborne impurities from a grill 10 an air supply from a blower 46 passes down a conduit 40 to an aperture 70 where it discharges upwardly and entrains vapours &c. from the grill which are then drawn through a filter 35 by an exhaust fan 32. In one embodiment (Fig. 4) additional apertures 72, 75 direct a stream of air along the outside of the conduit 40 thereby removing impurities and dirt therefrom, a further aperture permitting some air to pass behind and beneath a support 24 and so mix with the ambient air. This air flow can be controlled by adjusting the width of the aperture by which the air passes to the back of the support 24. This air may alternatively be discharged in close proximity to the grill or burners. A member 78 deflects the streams from the apertures 72, 75. In a second embodiment (Fig. 2, not shown) instead of the air flow through apertures 72, 75 an air supply via a branch passageway 48 accelerates the upward air flow. A third embodiment (Figs. 6, 7, not shown) comprises a ventilating system positioned between two grills 85 placed back-toback.
Patent GB-141837-A (GB)
Title: Improvements in and relating to flying machines
IPC: B64C33/00
Filed: 1919-02-14
Abstract: 141,837. Simons, F. F. Feb. 14, 1919. Dropping articles from a height.-The car of an aeroplane, to which a balloon may be attached, has a discharge tube 35 extending from a mailroom 34 through the bottom 36 of the car.
Patent GB-124859-A (GB)
Title: Improvements in and connected with Pointing or Reducing Metal Rods, Bars, or Wires.
IPC: B21B1/20
Filed: 1918-03-01
Abstract: 124,859. Atkins, E. A., and Rylands Bros. March 1, 1918. Tapering by rolling.-Metal rods, bars, and wire are pointed by pairs of rolls 1 formed with grooves 2 of varying section. The rod 20 to be operated upon is pushed between deep parts 3 of the grooves as far as permitted by a stop 4, and is then gripped by the shallow parts of the grooves and returned towards the operator. The rolls have a number of endless grooves of diminishing section or single tapering helical grooves.
Patent GB-208048-A (GB)
Title: Improvements in the slide valve arrangements of compound steam engines
IPC: F01L15/10
Filed: 1923-02-07
Abstract: 208,048. Miller, G. Feb. 7, 1923. Slide valves, flat.-Steam is exhausted from the high-pressure cylinder 1 to the low-pressure cylinder 2 at half-stroke, and to the condenser at full stroke, by coacting, slide valves 5, 6 between the cylinders. Steam passes through ports 9, 7 to drive the piston 3 forward. At half-stroke the steam passes from the cylinder 1 to cylinder 2 through ports 7, 10, 11, and at full stroke from the cylinder 1 to the condenser through ports 7, 12, 13, 14. The cylinder exhausts at full stroke to the condenser through ports 8, 13, 14. Triple and quadruple expansion engines may be similarly worked.
Patent GB-548015-A (GB)
Title: Improvements in or relating to fuel delivery systems, particularly high altitude fuel systems for aircraft engines
IPC: F02M37/20
Filed: 1941-03-17
Abstract: 548,015. Carburetters. THOMPSON PRODUCTS, Inc. March 17, 1941, No. 3653. Convention date March 18, 1940. [Class 7 (iii)] A fuel-supply system, particularly for aircraft engines, comprises a main engine-driven pump 14 supplying fuel from a tank 20 to a carburetter 12, and an auxiliary pump 24 arranged near the tank for augmenting the supply to prevent vapour lock at high altitudes. The pump 14 may be of the rotary-valve type with relief valve 28 and byepass valve 30 for obtaining a constant pressure in the discharge pipe 16, and the pump 24 may be of the centrifugal type driven by an electric motor 42 controlled bv a hand switch 44 and an automatic switch 46 operated by a barometric capsule 54. A hand pump 22 may also be fitted in the supply line. The pump 24 may also be of the rotaryvane type. The carburetter intake may be fitted with a supercharger 13, the pressure from which is communicated at 15 to the diaphragm 17 of the pump relief valve 28.
Patent GB-1138907-A (GB)
Title: Thin film capacitor and method of adjusting the capacitance thereof
IPC: H01L49/02
Filed: 1967-01-25
Abstract: 1,138,907. Thin film capacitors. BUNKERRAMO CORP. 25 Jan., 1967 [4 May, 1966], No. 3655/67. Heading H1M. A thin film capacitor comprising deposited electrode layers 12, 13 separated by a dielectric film 14 of e.g. silicon monoxide on a glass substrate is initially constructed to a higher capacity than desired and a portion of at least one of the electrodes is electromechanically removed to adjust the capacity to the desired value. The electrode removing operation may comprise deforming with a blunt tool 16 the surface of electrode 12 to touch or almost touch electrode 13 forming bridges 15 or 17 and, by means of a high voltage from source 20, burning out the bridges. The bridge may take the form of a line drawn with a scribing tool (Fig. 6, not shown) and to remove large portions of the electrode the line may be drawn to isolate areas thereof (Figs. 8 and 9, not shown).
Patent GB-622972-A (GB)
Title: Improvements in thermally - operated electric switches
IPC: H01H37/52
Filed: 1947-02-07
Abstract: 622,972. Thermal switches. NIEBOER, H. A. Feb. 7, 1947, No. 3690. '[Class 38(v)] The movable contact-carrying strip 27 of a thermal switch, e.g. for an electric iron, comprises two members 50, 51 folded over so as to be rigid and joined by a flexible strip 52 forming the fulcrum of the strip 27. The distance between the contact 30 and the point at which the end 34 of a bimetal strip 33 engages the strip 27 is preferably three or more times that between the point of engagement and the fulcrum. Specification 622,132 is referred to.
Patent GB-556397-A (GB)
Title: Improvements in and relating to dynamo-electric machines
IPC: H02K23/14
Filed: 1942-03-20
Abstract: 556,397. Dynamo-electric machines. BRITISH THOMSON-HOUSTON CO., Ltd. March 20, 1942, No. 3710. Convention date, March 20, 1941. [Class 35] A crossfield machine is fed with alternating current of peaked wave-form to remove residual magnetism and hysteresis. The power-driven rotor 17, Fig. 1, is connected to a commutator provided with two sets of brushes, the primary set 15, 16 being short-circuited and secondary set 19, 20 being connected to a load circuit. The primary armature reaction flux 23 generates, in the secondary circuit, currents which produce a secondary flux 24. The stator 10 serves as a return path for these fluxes and has four salient poles carrying three windings 25, 26, 27 producing two pole fluxes as follows: winding 25, a controlling flux along the secondary commutating axis ; winding 26, a flux neutralizing the standing secondary flux 24 ; winding 27, a flux assisting the primary flux 23, to avoid its disappearance if the primary short circuit is removed. In addition, to remove effects due to hysteresis and residual magnetism, a fourth winding 33 giving a four pole flux is fed with alternating current of peaked wave form from a generator mounted on the same shaft 29, Fig. 3. This generator comprises a narrow permanent magnet rotor 36 rotting in a permeable disc 32 carrying, in opposite pairs of slots 35, a winding 34 of restricted arcuate span. The wave-form of the generated current is shown in Fig. 4. The disc 32 also acts as a baffle directing cooling air, drawn through the windings of the main machine, into the central part of fan 28 which expels the air through surrounding circumferential slots in the casing. Specification 539,835 is referred to.
Patent GB-645377-A (GB)
Title: Improvements in means for the aerodynamic braking of aircraft
IPC: F02K1/54
Filed: 1947-03-21
Abstract: 645,377. Thrust spoilers. SOC. RATEAU, and ANXIONNAZ, R. Feb. 9, 1948, No. 3776. Convention date, March 21, 1947. [Class 4] A jet aircraft is braked by the forward ejection of part of the turbine exhaust gases and part of the working fluid deflected before admission to the turbine. The propulsive unit, shown operating as a brake, comprises a compressor supplying air to combustion chambers ch. Some of the combustion products pass via a turbine t and a channel a to a chamber b having at least one forwardly directed port whilst another portion of the combustion products are led through a byepass e to a chamber f which also has one or more forwardly. directed ports. The channels are so proportioned that the turbine runs at approximately the normal speed, thus facilitating rapid pick up if necessary. Normal forward propulsion is effected when the valves c and g are closed by pneumatic or oleo-pneumatic operation of the pistons d and h respectively. The outlet ports may be situated in any convenient position other than that shown, e.g. in the wings.
Patent GB-1402987-A (GB)
Title: Interrogation of remote stations
IPC: H04M11/00
Filed: 1971-05-13
Abstract: 1402987 Selective signalling KENT METERS Ltd 4 May 1972 [13 May 1971] 3783/75 Divided out of 1402986 Heading G4H [Also in Division H4] Apparatus responsive to the receipt of an interrogation signal from an interrogator connected thereto by a line to incode information for sending back to the interrogator comprises a multi-stage receiver adapted to receive the element of an interrogation signal, a gating network connected to at least two stages of the receiver and arranged if the corresponding elements form a predetermined code to initiate encoding into a frequency modulated response signal both variable information currently available and fixed data (i.e. the station identity) for transmission over the line. The whole of the subject-matter is disclosed in the parent Specification 1,402,986.
Patent GB-485783-A (GB)
Title: Improvements in and relating to rollers for cloth guiding machines
IPC: D06C3/06
Filed: 1937-02-09
Abstract: 485,783. Cloth-espanders. LITHGOW, J. Feb. 9, 1937, No. 3785. [Class 100 (i)] In cloth-expanders of the kind comprising curved bars carrying bobbins or rollers, which are enclosed in a rubber or like sleeve, the bobbins are made of a mouldable substance, such as a formaldehyde condensation product, and have each an external groove 9, forming a reduced portion, by which the bobbin is mounted on the curved bar 4, either directly or by means of a ball or roller bearing. The external surfaces of the bobbin beyond the groove have means for engaging the tubular sleeve 7, such as peripheral grooves or screw-threads 10 or a grub-screw 11, whereby longitudinal movement of the bobbins is prevented. The contraction of the sleeve into the grooves 9 aids in preventing endwise movement of the bobbins.