baber/WOPTO huggingface dataset:
Patent GB-280831-A (GB)
IPC: F24C3/12
Filed: 1927-07-26
Abstract: 280,831. Tinnerman, A. H. April 20, 1927, [Convention date]. Guards.-To protect the valves and air mixing devices on the manifold supplying the hot-plate burners of a gas stove from dust and the overflow from cooking operations, a guard which may be readily attached to the stove is provided, consisting of an outwardly and downwardly extending hood 20 which covers the manifold and has openings 25 through which the valve-operating devices extend. In the construction shown, the hood is formed with seatings 23 which are bolted to a pair of brackets 21 secured to the hot-plate. The manifold 12 is supported by the brackets 21 and secured by the ends of the seatings 23, which are curved to engage it.
Patent GB-1154664-A (GB)
Title: Improvements in Fume Cabinets.
Inventor: HOLLIDAY JOHN
IPC: B08B15/02
Filed: 1967-04-29
Abstract: 1,154,664. Ventilating fume cupboards and valves therefor. NORTH OF ENGLAND SCHOOL FURNISHING CO. Ltd. 11 April, 1968 [29 April, 1967], No. 19863/67. Headings F4V and F4X. A fume cupboard comprises a slide valve arrangement mounted in its inclined roof for controlling the withdrawal of fumes therefrom, the arrangement comprising a stationary panel A having slots a above which apertures b in a sliding panel B move into and out of register under the control of a link b<SP>1</SP> connected at one end to the panel B and at the other to one arm c of a pivoted control lever C. A second arm c<SP>2</SP> of the lever extends through the front of the cupboard to move over the surface of a notched, positioning plate c<SP>3</SP>.
Patent GB-153953-A (GB)
Title: Improvements in steam superheaters
IPC: F22G3/00
Filed: 1919-08-14
Abstract: 153,953. Danks, H. & T., and Grantham, W. H. Aug. 14, 1919. U-tube superheaters; straight-tube superheaters.-A superheater header is formed with curved or V-shaped faces 1, Fig. 8, receiving a number of nests of tubes 2 and with a flat face having hand-holes 4, which provide access to the inside of the header for fixing the tubes. A partition adapted to be inserted through a hand-hole consists of two side plates 9. Figs. 9 and 10, and a central wedged-piece 10, which are so forced between the side plates by a cross-piece 11 and bolt 12 as to force the plates against the header walls.
Patent GB-531039-A (GB)
Title: Improvements in the manufacture of fireproof plaster and the like
IPC: A62D1/00
Filed: 1939-07-10
Abstract: 531,039. Fireproof plaster. TALBOT, J. J. A. July 10, 1939, No. 20068. [Class 70] Fireproof plaster is made by mixing slag wool (30 per cent.) and asbestos (25 per cent.) in a teasing machine, soaking the felted fibres in a solution of potassium or sodium silicate (30 per cent., 66‹ Twe), and grinding the saturated fibres with iron filings (15 per cent.) to produce a plastic mass. The air may be extracted from the fibrous mass prior to or during impregnation with the silicate solution.
Patent GB-168307-A (GB)
Title: Improvements in or relating to grinding machines
IPC: B24B53/02
Filed: 1921-07-26
Abstract: 168,307. Aktiebolaget Svenska Kullagerfabriken. Aug. 21, 1920, [Convention date]. Gauges; trueing rotating tools. -In a grinding-machme, a rotary dressing-member is provided for determining the position of the working surface of the grinding-disc in relation to the work at the completion of the grinding operation. The invention is shown applied to a cylindrical grinding-machine in Fig. 1, the work 5 being ground by a grinding-disc 3. The disc is journaled in a slide 2, which is movable towards the work by a screw 6 operated through worm gearing 7 - - 10 by variable-speed friction gearing 11 - - 13. The friction disc 12, which is rotated by a pulley thereon, is carried at one end of a shaft 14, on the other end of which is slidably mounted a dressing-tool 15 having a sleeve 20 journaled in a slide 19. The slide is adjustable on the machine frame and carries rollers 18, against which the dressing-tool is pressed by a spring 17.. The slide is adjusted until the tangent plane to the rollers is at a distance from the axis 21 of the work equal to the final radius of the work; the dressing-tool dresses the grinding-disc if it is fed in too far, and thus keeps the grinding surface true and also ensures that the work has the required dimension. The feed of the grinding-disc is adjusted, by adjustment of the friction-roller 13, so that it is greater than the amount to be removed from the work, together with the wear of the disc, by an amount corresponding to the extent of dressing required. In Fig. 3, the device is shown applied to a geargrinding machine. In this case, the dressing-tool has an annular working-face 16, which overlaps the grinding-face 22 of the disc to such an extent that the inner circumference of the grinding-face is dressed more than the outer circumference, whereby the face is kept flat. The working-surface of the dressing-tool may be conical or of a shape dependent on the form of the grinding- surface. The friction gearing may be replaced by ratchet mechanism. The Specification, as open to inspection under Sect. 91 (3) (a), comprises also the use of a stop in place of the dressing-member. This subjectmatter does not appear in the Specification as accepted.
Patent GB-148165-A (GB)
Title: Improvements in artificial teeth
IPC: A61C13/10
Filed: 1920-07-02
Abstract: 148,165. Myerson, S. June 8, 1917, [Convention date]. Teeth, artificial.-An interchangeable artificial molar or bicuspid tooth comprises a porcelain body portion 12, Figs. 1 and 4, having lingual surfaces 13, 16 at an obtuse angle and formed with a keyhole slot 17, 17<a> the lower portion of which is extended towards the buccal. cusp 14, and a correspondingly-formed metal backing .having portions 18, 20 inclined at an obtuse-angle and a post or tenon 19 connected thereto by a web 19<a>. The surface 16 of the tooth and the corresponding portion 20 of the backing are curved transversely as shown. Fig. 6 shows a modification in which the post 19 is inclined to the portion 18 of the backing and in which the web 19a is extended at 21 into the lower portion of the tooth. Fig. 7 shows a further modification in which the lingual surface 13a of the tooth intersects directly the buccal surface, and in which both the post 19<b> and web 19<c> are connected directly to the part 18<a> of the backing-member.
Patent GB-577468-A (GB)
Title: Production of a composite emulsion
IPC: D21H17/61
Filed: 1943-12-02
Abstract: A composite emulsion is prepared by dispersing a toxic agent, e.g., copper oleate or dichlordiphenyl-trichlorethane, in molten pitch, molten bitumen, creosote to be added to the pitch, or in a flux of creosote and pitch, and dispersing this mixture with or without creosote in dilute aqueous alkaline solution in the presence of one or more assistant emulsifiers such as a natural asphalt, bentonite and protein, with or without fatty acid.  In a modification the emulsion is made either by adding an aqueous dispersion of the toxic agent to an aqueous emulsion of bitumen or pitch with or without the presence of paraffin wax, or by adding a dispersion of the toxic agent in creosote to the aqueous bitumen or pitch emulsion.  Paper possessing waterproofing and anti-mycetic properties may be prepared by incorporating the composite emulsion with the paper pulp. Examples are given. Specifications 462,111 and 573,169, [both in Group III], are referred to.
Patent GB-202199-A (GB)
Abstract: 202,199. Osborne, K. Oct. 10, 1922. Oven shelves.-A shelf is pivoted to the frame or door of a domestic cooking-oven in such a way that the door can be closed when the shelf has been turned into a plane parallel to it. Figs. 1 and 2 show a shelf a pivoted in brackets c - secured to the oven frame d in such a way that the shelf may be turned to the horizontal position when the door is open. Fig. 6 shows a shelf a hinged at l to the oven door k, and supported when horizontal by hinged struts m sliding in guides n. A catch o secures the shelf when folded.
Patent GB-646151-A (GB)
Title: Improvements in methods and apparatus for making die rolls
IPC: B21D37/20
Filed: 1947-07-28
Abstract: 646,151. Making die rolls; embossing. CONMAR PRODUCTS CORPORATION. July 28, 1947, No. 20252. Convention date, Oct. 4, 1939. [Classes 83 (ii) and 83 (iv)] Die rolls are made by stamping the blank roll to a slight depth, rotating the roll an amount equal to the desired spacing between impressions, striking the roll again to the same depth, continuing the operation through at least one revolution of the roll, then increasing the depth of the impressions on subsequent rotations of the roll. The invention is described as applied to the manufacture of die rolls for rolling a wire into a series of embryo slide fastener elements, in a mill as described in Specification 539,525. The roll blank R is operated upon by a master punch 34 carried in a holder 36 secured in a slide 20, and is intermittently rotated by a pawl and ratchet wheel 46 through an adjustable link. An indexing wheel 50 rotates with the blank and is provided with a series of holes 62 which co-operate with an index plunger 66 on the slide 20 to locate and lock the roll against movement while it is being struck. The stroke of the punch 34 is adjusted by the pitman screw 24, the feed of the punch being of the order of 2-15 thousandths of an inch, preferably 4 thousandths of an inch, at a time. Counter mechanism 32 (no details) serves to stop the press after one series of impressions so that the punch may be fed forward, the roll preferably rotating one revolution plus one, two, or three impressions more, so that the point of change of depth does not remain the same. The depth of operation of the punch is limited by co-operating stop-blocks, one on the slide 20 and one on the roll support 68. For making a roll having more impressions per inch, the ratchet pawl may be moved for cooperation with a second ratchet-wheel 114 having the requisite number of teeth, a corresponding series of index holes 130 being provided on the wheel 50. In a modification, Figs. 14 and 15 (not shown), the punch is fed automatically, the screw 24 being operated through a worm and wheel mechanism, the worm shaft carrying a changeable ratchet-wheel rotated by a pawl operated by a solenoid energized after one revolution plus a desired amount of overtravel by the counter mechanism, the stroke of the solenoid core and hence the pawl being adjustable. Electrical contacts associated with the stop-blocks operate to stop the feed of the punch when the required maximum depth of impression has been reached, and, after a time delay which permits several revolutions with the punch at its maximum depth to finally fix the impressions, to stop the press. After stamping the blank R is annealed or normalized, machined to shape, hardened, ground and brushed.
Patent GB-257263-A (GB)
Title: Improvements in pressure-meters
IPC: G01L7/18
Filed: 1926-08-17
Abstract: 257,263. Nordensson, T. K. A. Aug. 19, 1925, [Convention date]. Liquid - level pressure gauges-The apparatus is intended more especially for measuring a vacuum and comprises two barometric tubes a1, b1, a2, b2 containing liquid and connected with each other at the vacuum side c so as to form a common vacuum chamber. In use, the pipe e1, say, is connected to a pressure - under atmospheric-to be measured. The difference between the heights of the liquid in tubes a1, b1 will give the pressure. If, however, the difference in height of the liquid in tubes a2, b2 has altered during this measurement, there is a pressure prevailing in the vacuum chamber and a correction must be made which correction may be readily deduced from the known volume of the vacuum chamber. A means of filling the tubes with mercury involving heating the tubes and the use of calcium chloride as a drying agent is described.
Patent GB-726878-A (GB)
Title: Improvements in or relating to flight and navigational training apparatus
Inventor: DAVIDSON JOHN HUGH MACREADY
IPC: G01S1/02
Filed: 1953-07-21
Abstract: 726,878. Ground trainers for pilots. COMMUNICATIONS PATENTS, Ltd. July 21, 1953, No. 20270/53. Class 4. Flight or navigational training apparatus comprises an indicator and means whereby electric noise signals generated in an electric element are used to disturb the indication of an indicator in a random manner. In the embodiment described, a gas tetrode 1 is strapped as a diode, the anode being decoupled, and the noise signals generated are resistancecapacity fed to triodes 6, 14, 20 in cascade, of which the first two may constitute a twin triode, triode 14 being decoupled. The anode of triode 6 is fed from a variable potential divider 9, 10, 11 to control the gain. The output of triode 20 is fed to a rectifier 26 and a low pass filter comprising the capacitors 27 and 28, so that the grid of triode 29 receives unidirectional low frequency pulses at random intervals. Triodes 29 and 30, which may be a twin triode, having a common biasing resistor 33, and the anode signals of triode 29 are fed to the grid of triode 30, and through a high resistance 36 to the anode of triode 14, and constitute a uni-stable trigger circuit. The output of triode 30 is fed through resistor 38 to the grid of triode 37, whose cathode is connected to the mid point of a potential divider 41, 42 and which may form a double triode with triode 20. The anode circuit of triode 37 includes a relay 39 adapted to close the contacts 40 to produce a disturbance in the indication given by the indicator. The functioning is as follows: By virtue of resistor 36, the grid of valve 30 is normally slightly positive, and the valve conducts, producing sufficient potential across the bias resistor 33 to cut off triode 29. When a pulse of sufficient amplitude reaches the grid of triode 29, the valve conducts, lowering its anode potential, and giving a negative impulse to the grid of triode 30, raising its anode potential, delivering a positive impulse to the grid of triode 37. The grid of this triode is normally negative with respect to the cathode because of potential divider 41, 42. On receiving a pulse, however, it becomes positive, and the valve conducts, operating relay 39. The relay remains energized until the trigger circuit is restored to normal conditions, the time of recovery being determined by the width and amplitude of the triggering pulse delivered to the grid of triode 29, and the time constant, of the circuit, and the randomly varying anode potential of triode 14. Alternatively, the triodes 29 and 30 are replaced by a bi-stable circuit, switching from one condition to the other in response to successive pulses, alternate pulses energizing and de-energizing the relay. Contacts 40 may be arranged in series with a voltage source and the resulting signals applied in parallel with the signal representing a variable to be displayed on an indicator, to the grid of a summing amplifier.
Patent GB-389712-A (GB)
Title: Improvements in and relating to grease guns
IPC: F16N5/02
Filed: 1932-07-18
Abstract: 389,712. Grease guns. LEO, F., LEO, K., and LEO, H., (trading as LEO, H.), 29, Talstrasse, Gera, Thuringia, Germany. July 18, 1932, No. 20284. Convention date, March 4. [Classes 102 (i) and 102 (ii).] In a grease gun the plunger k<1> is connected to a piston i actuated by compressed air and a spring q. The air is supplied through passages g and a nozzle h and controlled by a valve d and the discharge is controlled by a valve o. The valves d, o are actuated by a lever e, the spring f being stronger than the spring of the valve o. The nozzle is provided with a non-return valve n and pressure in the nozzle may be released by a screw valve r. A follow-up piston comprises a leather disc y, reinforced by a metal disc z and secured to a bush and gland 2 sliding in the rod k. The space between the follow-up piston and the piston i is normally connected to atmosphere through ports x which may be closed and valve t opened by pushbutton w allowing air to pass from the passage v to compress the grease.
Patent GB-716004-A (GB)
Title: Improvements in or relating to wall fittings
Inventor: TANNER THOMAS HENRY
IPC: A47K5/02
Filed: 1952-08-13
Abstract: 716,004. Brackets. VALBANIA, Ltd. June 30. 1953 [Aug. 13, 1952], No. 20410/52. Class 52(5) A wall fitting for a soap-dish or the like comprises a rectangular securing element 10 provided with apertures 11 for screws and having a bevelled upper edge 12. The soapdish has a rear wall 3 and a back plate 6 provided with a rectangular aperture 7 to fit over the securing element 10. The upper and lower walls of the aperture have surfaces 8, 9 inclined downwardly towards the wall engaging surface, the upper surface 8 seating upon the bevelled surface 12. A screw 14 holds the soap dish in position. In a modification the apertures 11 in the securing element are replaced by a tongue or projection which can be embedded in the wall.
Patent GB-1537496-A (GB)
Title: Energy converters
IPC: F25B30/00
Filed: 1976-08-16
Abstract: 1537496 Power generating systems D POOL 16 Aug 1976 [15 May 1975 4 Aug 1976] 20520/75 and 32431/76 Heading F1Q [Also in Division F2] Conversion of heat energy into mechanical or electrical energy is effected by a system including a heat pump/heat engine 22 operating between two heat sinks 13, 14 and being coupled via a shaft 23 to a flywheel 55, the flywheel storing energy when the engine 22 acts as a motor, but giving up energy to drive the engine when the engine acts as a heat pump. As shown, the heat sinks are two vapour chambers 13, 14 connected to the engine via a changeover valve 18 so that fluid-flow through the engine, and hence rotation of the engine, is always in one direction. The two chambers are on a common heat exchange block. With the flywheel rotating, e.g. by a starter motor, the heat pump 22 serves to draw vapour from one chamber, e.g. 13, and deliver it to the other chamber 14, thus increasing the pressure and temperature therein. When the speed of the flywheel falls to a predetermined value, the changeover valve 18 is manually or automatically switched so that chamber 14 is connected to the engine 22 inlet, and the engine is driven by the high pressure, high temperature vapour from chamber 14, the expanded vapour returning to chamber 13. When the temperatures and pressures are again equal in chambers 13, 14, the flywheel will take over to drive the engine as a heat pump, pumping vapour into chamber 13. A heat exchanger 21, e.g. oil or gas-fired, is provided to replace lost heat, and to provide an energy input to allow energy to be extracted from the system. As shown, the flywheel 55 is formed as the rotor of an alternator 56, which generates electricity directly Again, Figs. 1 to 4, (not shown), copper/constantan thermopiles (11, 12) are inserted between each chamber 13, 14 and the heat exchange block 10, and electric power is withdrawn from them, and is used to charge an accumulator (50). The heat exchanger may utilize solar energy, Fig. 6, (not shown). Warm air is drawn in by a compressor (62) for  heat exchange with the working fluid and then expansion through a turbine (63), the compressor (62) and turbine (63) being mounted on a common shaft with the heat pump/heat engine (64), the flywheel (65), and an alternator (66) driven thereby. The exhaust air may be used in a building air conditioning system. Again, Fig. 7, (not shown), in a vehicle power system the flywheel forms the rotor of an alternator supplying electricity to D.C. motors 91 mounted on the vehicle wheels.
Patent GB-404967-A (GB)
Title: Improved screening device for sparking plugs of internal combustion engines
IPC: H01T13/05
Filed: 1933-07-20
Abstract: 404,967. Two-part couplings. TEBALDI, A., 18, Via C. Ilarione Petitti, Milan, Italy. July 20, 1933, No. 20521. Convention date, July 27, 1932. [Class 38 (i).] The coupling between a supply cable 30 and a sparking plug is housed in a casing member comprising a tubular head 11 with an insulating liner 4 forming a seating for the plug, and a tubular body 1 enclosing the attachment head of the cable, connection being made by a spring-pressed plunger 13 which projects into the head 11 to engage a groove 36 in the conducting rod 35 of the plug, thus at the same time serving to make the electrical connection and to hold the plug in position. The cable head 17, secured to the cable by a cross-pin 19, is screwed into an insulating socket 23 and carries a wire stirrup 20 on which slides a spring-pressed block 21 which is in electrical contact with a further spring 16 between the top of the socket 23 and a washer 15 carrying the plunger 13. The cable head assembly is held in the body 1 by a nut 27 having a manually-operated spring-controlled locking-pin 31, the head of the nut clamping the cable sheath 26 between ferrules 25 so that the earth connection is extended over the casing 1, 1<1> to the earthed metal part of the plug, the arrangement preferably being such that the plunger 13 bears against one side of the groove 36 so as to press the plug laterally to maintain tight contact with the flange 3. The nut 27 may be divided diametrically into two hinged parts to facilitate removal from the socket 23. Radiation of heat is promoted by fins 2 on the tubular head 1<1> and by making the centre 5 of the liner 4 of metal separated from the head 1<1> by insulation 7. If desired the casing may be dispensed with and direct connection made to the plug by applying the stirrup 20 to the terminal 34.
Patent GB-403463-A (GB)
Title: Improvements in wooden fireplace curbs
IPC: F24B1/198
Filed: 1932-07-21
Abstract: 403,463. Domestic curbs. CROSS, W. A., Apollo Works, Blews Street, Birmingham. July 21, 1932, No. 20563. [Class 126.] To prevent warping, a non-adjustable wooden curb is provided on the underside with a longitudinal groove or channel in which fits an angle-section metal strengthening bar 5, extending substantially throughout the whole length of the curb and secured to it at the base. In the curb shown, Fig. 2 being an underside view, the bar 5 is of T section, and is secured by screws passing through the horizontal flanges 6. It is formed by separate end sections 10, corner sections 11, and a central section 12. Alternatively a central section and rightangled end sections may be employed, and may be welded together at their junctions. Bars of other angular section, for example L section, may be employed.
Patent GB-729574-A (GB)
Title: Suspender fastening
Inventor: COCKAYNE LEONARD
IPC: A41F11/04
Filed: 1951-08-15
Abstract: 729,574. Button and loop fasteners. STEELS & BUSKS, Ltd. Aug. 21, 1953 [Aug. 15, 1951], No. 20572/52. Class 44. A suspender fastening comprises a rigid loop 1 for receiving the button 18 of a flexible tab 21 with which it co-operates to grip a suspended stocking or other garment and at the upper part of the fastening and carrying the loop, a buckle, including a pivoted lever plate 3, for attachment of the fastening to a supporting web 16 of ribbon or elastic, the buckle having a frame 2 carrying the lever plate ; the frame having three transverse limbs 5, 6, 7 and the lever plate being arranged to anchor the web 16 against the front face of the intermediate limb 6. The web 16 passes behind the limbs 5, 7 and in front of the limb 6. The lever plate 3 has a serrated edge to grip the web and is pivotally mounted in apertures in side limbs 11 bent up from the plane containing the limbs 5-7. In the construction shown the loop 1 is pivotally mounted in a rolled over part of the limb 7 and the button tab is attached to the loop by means of an attachment plate 4. In an alternative construction the loop is attached to the limb 7 by a ferrule which also serves to secure the button tab to the limb.