baber/WOPTO huggingface dataset:
Patent GB-530505-A (GB)
Title: Improved telescopic tubular props, struts, and like supports, and telescopic tubes in general
IPC: E04G25/08
Filed: 1939-06-27
Abstract: 530,505. Pit props ; struts &c. SWITH, H. C. June 27, 1939, No. 18628. [Classes 20 (i) and 20 (ii)] A telescopic prop or post comprises an outer tubular member 10, an inner sliding member 11 with supporting head 19, a washer 15 having its bore perpendicular to its faces, and an offset abutment 13 on the upper end of the outer tubular member to support one side of the washer, so that it can tilt until the edges of its bore grip and support the inner member after adjustment for height. The upper enc of the outer member may be cut at an incline 12 tc form the abutment and allow tilting of the washer. A ring guard 20 is supported above the washer from the outer member. Further sections similarly supported may be disposed, within the inner sliding section.
Patent GB-530555-A (GB)
Title: An improved filing device for photographic negatives and the like
IPC: G03B21/64
Filed: 1939-06-27
Abstract: 530,555. Filing papers; index tabs; picture mounts. WHITFIELD. F. G. S., and GOLLEDGE. C. J. June 27, 1939, No. 18705. [Classes 11, 16 and 146 (i)] A storage and indexing device for photographic micro-films comprises a leaf with parallel pockets having finger openings. the films having index tabs secured by bendable lugs and the pockets and tabs marked for reference and indexing. The leaves may be carried in a loose-leaf binder or in a metal cabinet. The pockets may be formed by a sheet twice the length of the leaf, the extension being notched or slotted and bent back and lines of stitching 8, sewing 9, or adhesive 10 applied, or from a base sheet 1 with similar or different cover 4 applied and secured. The cover may be transparent or may have windows 12. The slots may extend across the film 6 as at 5 or come in alignment with the feed slots as at 7. The tabs 13 have lugs entering the feed slots or merely piercing the film and being then bent back. In a modified form, the pockets have an opening along one side and end, and the finger slots in this case may be along the top edge.
Patent GB-256240-A (GB)
Title: Improvements in die-casting machines
IPC: B22D17/26
Filed: 1926-07-27
Abstract: 256,240. Fertigguss-und Metallwerk-Akt.-Ges. Aug. 3, 1925, [Convention date]. Casting-machines; clamping moulds. - In a pneumatically operated diecasting machine interlocking electrically - actuated mechanism is provided, to prevent metal being blown into the mould before the mould-halves are closed. The mould-halves 10, 11 are mounted on a carriage 9 actuated by a hollow piston-rod 18<1> fitted with a hollow piston 18 constituting a cylinder in which works a piston 17 connected to a piston-rod 16 telescoping within the piston-rod 18<1>, and connected to links 14 which operate toggles 13, 12 controlling the movement of the mould-half 11 relatively to that of the mould-half 10. A valve 4 which controls the supply of compressed gas to the charging- vessel 1 is locked by the plunger 5 of a solenoid 6. The machine is controlled by a hand-lever 44, Fig. 1<a>, which actuates four-way valves 38, 25, the hand-lever being mounted on a shaft 43 carrying a disc 50 whose degree of rotation is normally limited by a solenoid plunger 52. The supply of fluid-pressure to the cylinders 18, 19 is such that the carriage 9 first remains retracted while the rod 16 advances to ,straighten the toggles 13, 12 to close the mould and to close a contact 55 whereby the the solenoid 53 is energized and the plunger 52 withdrawn clear of the disc 50. This movement allows the lever 44 to be advanced further, whereby the cylinder 18 is advanced, pressure being maintained on the piston 17 so that the carriage 9 and the closed mould are advanced as a unit to the charging- nozzle 2. The advance of the carriage causes links 56, 57, Fig 1<b>, to straighten until, in the final position when the mould has been positioned on the charging-nozzle, the link 57 closes a contact 8 whereby the solenoid 6 is energized and the locking-plunger 5 withdrawn so that the valve 4 may be actuated to supply compressed gas to the charging vessel. Cams 58 on the hand shaft 43 break the toggle 56, 57 after charging pressure is cut off, and the hand-lever 44 operated to withdraw and open the mould.
Patent GB-648837-A (GB)
Title: Improvements in switching mechanisms particularly for controlling electric motors
IPC: H01H50/32
Filed: 1947-07-15
Abstract: 648,837. Electromagnetic switches; control of D.C. motors. IGRANIC ELECTRIC CO., Ltd. July 15, 1947, No. 18813. Convention date, Dec. 18, 1843. [Classes 38(iii) and 38(v)] In a controller for a split field series motor electromagnetically - operable direction controlling switches 1, 2 are combined with a selector switch 3, in such a manner that the switch 3 is operated one way by operation of switch 1 and the other way by operation of switch 2, release of switch 1 or 2 having no effect on switch 3 and the position of switch 3 being in this. way the correct one for effecting dynamic braking connections. The circuit arrangements are shown in Fig. 4, operation of the switch 1 for example by the press button 60 connecting the field winding f of the motor M in circuit between lines L' and L<SP>2</SP> and moving the switch 3 into the position shown if it is not already there, and release of the switch 1 completing a braking circuit 1c, 2c, 3, f. The switch 1 comprises a coil 1b and a plunger 12 connected resiliently to an extension 15 carrying contact bars 16, 17 co-operating respectively with fixed contacts 18, 19 and 20, 21. The switch 2 is similar. Each switch 1. 2 also has a collar 56 between which and a spring 57 lie the arms of a U-shaped lever 50 or 51 pivoted at its outer end, operation of either switch thus moving its lever 50 or 51 to tilt a lever 46 into the full or dotted position if it is not already there. The lever 46 is fixed to a rotatable sleeve carrying the contact arm of the selector switch.
Patent GB-459152-A (GB)
Title: Improvements in and relating to refrigerating apparatus
IPC: F25B17/02
Filed: 1935-07-01
Abstract: 459,152. Refrigerating. HALLSTROM, E. J. L., 462, Willoughby Road, Willoughby, near Sydney, Australia. July 1, 1935, No. 18815. [Class 29] [See also Group XXII] Absorption systems.-In apparatus working on the reversing system an expulsion pipe 20 extends upwards from the generator-absorber 17 into a chamber 23 within a separator vessel 21 containing solution up to the level of the end of the return pipe 45, the chamber having a depending open-ended pipe 24 and the separator being connected by a pipe 25 to a concentric-tube condenser 28 immersed in cooling-water in a tank 31. The condenser is connected by pipes 32, 33 with an evaporator 34, and uncondensed gas is returned from the evaporator by an upwardly extending #-pipe 39 connecting the pipe 33 with an absorption vessel 41, which is connected by pipes 43, 44 with the separator. A smallbore pipe 35 extending from the bottom of the evaporator through a partition 36 across the pipe 33, located at a point between the pipe 32 and the separator, serves to return solvent from the evaporator. The generatorabsorber is heated by a wick burner 15 supplied from a fuel reservoir 11 of fixed capacity, and is provided with a flue jacket 18 and with gills 19 for air cooling. During the generating period the evolved refrigerant (ammonia) passes through the solution in the separator on its way to the condenser, and is partly rectified thereby, and any solvent (water) carried over to the evaporator is forced back through the small bore pipe 35 at the end of the generating period by the accumulated head of liquefied refrigerant in the evaporator. The pipe 25 may be secured to the water tank 31 without risk of corrosion of the galvanized surface of the tank by welding a cup 55, Fig. 2, over a large hole 52 in the tank, welding the pipe 25 to the cup, and then pouring molten bitumen into the cup through the hole 52 to cover the surface bared by the welding operation.
Patent GB-1478938-A (GB)
Title: Method and apparatus for open-ended spinning
IPC: D01H4/08
Filed: 1975-05-05
Abstract: 1478938 Open end spinning ZINSER TEXTILMASCHINEN GmbH 5 May 1975 [4 May 1974] 18821/75 Heading DID An open end spinning device is operated so that the proportion of real twist inserted by the rotor and false twist inserted by a withdrawal/drafting tube results in a finished yarn with a twist which is substantially constant over the cross section of the yarn. The control of the device is performed by delivering fibres into the fibre collecting groove of a spinning rotor, drafting the yarn formed from the fibres in the interior of the rotor through the yarn withdrawal/drafting tube by means of a pair of driven yarn drafting rollers, controlling the real twist imparted to the yarn by controlling the rotational speed of the spinning rotor and the yarn delivery speed, and controlling the false twist imparted to the yarn by use of a yarn withdrawal/drafting tube having desired internal dimensions and coefficient of friction between its internal surface and the yarn. The open end spinning device may be operated so that the total twist in the yarn structure disposed upstream of the yarn drafting tube is propagated substantially to the position at which the fibre structure lifts of the fibre collecting groove. The false twist may be varied by the construction of the yarn withdrawal/drafting tube and-by allowing the tube to freely rotate, or by braking it by eddy current brakes, or by means of belt drive. The total amount of twist in the fibre structure upstream of the yarn withdrawal/drafting tube may be controlled independently of the twist of the yarn downstream of the pair of drafting rollers.
Patent GB-1488753-A (GB)
Title: Illumination of premises
IPC: F21V23/04
Filed: 1976-05-04
Abstract: 1488753 Lighting systems L ORMANDY 4 May 1976 [6 May 1975 10 Sept 1975] 18878/75 and 37207/75 Heading F4R [Also in Division G5] In a lighting system for premises with at least one window, e.g. a shop or department store, the interior lighting may be activated via a timer by a switch operable from outside the window so that an inspection of the interior may be made through the window. It is envisaged that the switch would be operated by window shoppers, police or security officers. In the latter cases the switch is in a concealed position but for window shoppers the switch, which is preferably of the proximity type, is mounted on the window interior. Low level lighting may be provided continuously and the switch then activates lights to give a brighter level of illumination. After a preset time delay the lights are switched off and the switch may be set to operate until a certain time only at night. The switch may, in addition, control other appliances, e.g. a TV set of toy in a shop window. A notice may be provided to direct window shoppers' attention to the switch.
Patent GB-613668-A (GB)
Title: Improvements relating to electrical oscillators
IPC: H05B6/04
Filed: 1946-06-25
Abstract: 613,668. Keying carrier frequencies. ENGLISH ELECTRIC CO., Ltd., and SLEIGH, A. F. C. June 25, 1946, No. 18975. [Class 40 (v)] In a thermionic valve oscillator which normally is maintained in oscillation, e.g. in industrial heating systems, means are provided to stop oscillations by introducing into the grid circuit in succession (a) a resistance which will carry grid current and be sufficient to cause squegging and (b) a grid bias exceeding static cut-off value. To stop the oscillator, the switch S1 is opened to introduce the resistor R2 into the grid circuit, and the switch S2 is then closed to bias the valve to cut-off. In order to start the oscillator, S2 is first opened and S1 then closed. The switches may be operated by a relay.
Patent GB-274509-A (GB)
Title: Incandescent cathode for electron discharge tubes
IPC: H01J1/14
Filed: 1927-07-18
Abstract: 274,509. Loewe, S. July 19, 1926, [Convention date]. Vacuum tubes.- Incandescent cathodes of rectifiers and other electron discharge tubes comprise a coating of metal oxides or other substances with high emission applied to a platinum or platinum-iridium coating on a core of or containing iron. Known sealing-in wires may be used and coated with oxide. The Specification as open to inspection under Sect. 91 (3) (a), comprises also cores of chromenickel coated with platinum or platinum-iridium and then with oxides. This subject-matter does not appear in the Specification as accepted.
Patent GB-1113928-A (GB)
Title: Pattern recognition apparatus
IPC: G06V10/88
Filed: 1966-04-29
Abstract: 1,113,928. Comparing documents; checking cash. ADVANCE DATA SYSTEMS CORPORATION. 29 April, 1966 [30 April, 1965 (2)], No. 19085/66. Headings G4R and G4T. In apparatus for effectively comparing one printed sheet with another, standard sheet, the first sheet is sensed optically at separate, differently-shaped areas thereof, an electrical circuit comparing the sensed light intensities with the light intensities which would be sensed with the standard sheet. The apparatus is described for verifying the authenticity of a bank note in a device adapted to deliver merchandise and/or change in response to a genuine banknote of the right denomination. Mechanical details.-The customer slides the banknote into a horizontal slot and then moves a vertical slide downwards. The lower rear edge of the slide is bevelled to push the banknote in against a stop if not already fully in. When the slide reaches its lowest point it closes a switch to begin the verification procedure, and a solenoid plunger slips into a hole in the slide to hold it down. After the verification procedure, the solenoid is energized to withdraw the plunger and a spring draws the slide upwards. If the banknote is found to be genuine it is passed to a money container by a drive roller and an idler roller (the latter carried by the slide), before the slide is released upwards. If the banknote is not genuine, it is not moved and on release of the slide, the customer can withdraw it. Verification circuitry.-Referring to Fig. 10, four photo-cells 78, 78a-78c, which receive light transmitted through the banknote and respectively shaped apertures in the sensing head, are each connected as one arm of a respective D.C. bridge network. A second arm of each bridge network comprises a fixed resistance, e.g. 142, and an adjustable potentiometer, e.g. 140. Resistors 104, 105 form the other two arms for each bridge in common. The potentiometers 140, 140a-140c are preset so that if the banknote is genuine each bridge gives an error voltage of zero. The diode -network shown 170, 170a-170c, 168, 168a- 168c obtains minus the sum of the moduli (magnitudes) of the error voltages (to prevent error voltages cancelling each other) from the four bridges and passes it via a transistor 176 to a Schmitt trigger 180, 182 which controls an accept-reject relay 107. As a modification, shaped pieces of photo-cell material may be used in place of the standard photo-cells and shaped apertures. Compensating arrangements.-The intensity of the light source is controlled by a photocell (122, Fig. 11, not shown), sensing light from a particular area of the banknote, to compensate for any aging or dirtiness of the :banknote. A Zener diode (135) limits the extent of the compensation possible. 'The circuit also compensates for variations in line voltage. A thermistor is provided at the Schmitt trigger input for (temperature compensation. The disclosures are repeated in Specifications 1,113,929 and 1,113,930. Reference has been directed by the Comptroller to Specification 1,024,357.
Patent GB-1501908-A (GB)
Title: Automatic positioning of image and/or object surfaces in optical apparatus
IPC: H01L21/027
Filed: 1975-05-07
Abstract: 1501908 Automatic position control INTERNATIONAL BUSINESS MACHINES CORP 7 May 1975 [6 June 1974] 19086/75 Heading G3R In a device for aligning a mask 18 with a semiconductor wafer 21 coated with a photo-resist film, the mask 18 and wafer 21 are scanned along a circular path by a laser beam. The circular scan is formed by passing the laser beam through a rotating prism 15, lenses 16, 19, 20 and a beam divider 17. The lenses are such as to bring the beam into focus in the "nominal plane" of the mask 18 and the wafer 21. The laser beam is of a wavelength that will not react with the photoresistive layer. The beam reaches the wafer 21 through the gaps in the mask 18. The reflected radiation is directed back as shown via beam dividers 17 and 14 and lens 22 to a focusing detector 30. The detector 30 detects whether or not the beam is in focus on the mask 18 or the wafers 21 surface at that instant. The output from the focusing detector 30 is fed along with signals from a prism position indicator device 15A to a processing unit 32. The processing unit 32 separates the signals originating from radiation reflected off the mask from radiation reflected off the wafer, and the unit determines how the mask and wafer are out of true. The processing unit supplies control signals along lines 33, 34 to adjust the position of the mask and the wafer with the aid of movable rod shaped elements. The mask and wafer may be moved along the optical axis O, or, tilted about the "X" or "Y" axis. Other elements, (not shown) rotate the mask and/ or wafer or move them in the "X" or "Y" direction. When both the mask and wafer are correctly aligned an exposing flash lamp 50 is activated. If the laser beam is in focus it will be reflected back to be in focus on the apertures of two "pin-hole" diaphragms 25 and 26. However an "out of focus" condition will be detected by photo-detectors 27, 28 which will register a decrease in incident intensity.
Patent GB-596270-A (GB)
Title: Improvements in trays as used for domestic and like services
IPC: A47G23/06
Filed: 1945-07-25
Abstract: 596,270. Tables. WOODROYD TOOLS, Ltd., ISHERWOOD, F. P., and ECROYD, J. W. July 25, 1945, No. 19088. [Class 52 (iii)] A tray is provided with pivoted U-shaped legs c, d to convert it into a table. The legs pass through brackets b attached to the tray and are connected by arms f, g and links h, i to locking means provided on the underside of the tray. The locking means consists of two rods, slidably mounted on the underside of the tray, and notched to engage fixed brackets.
Patent GB-749413-A (GB)
Title: Improvements in or relating to mixing machines especially for use in mixing meal
IPC: B01F7/24
Filed: 1954-06-30
Abstract: 749,413. Batch mixing-machines. AIR CONDITIONING & ENGINEERING (N.I.), Ltd., and BROWN, O. S. Jan. 13, 1955 [June 30, 1954], No. 19115/54. Class 86. A mixing-machine comprises a receptacle 1 having a central vertical tubular member 9 therein through which material is conveyed on rotation of a central worm 7. Material, such as meal, is conveyed to the lower end of the worm 7 from a hopper 6 by a horizontal worm 8. On reaching the top of the tube 9 the material drops over the sides thereof to the bottom of the container 1 and mixes with the incoming meal and is re-circulated. The worm 7 is driven by an electric motor 17 and the drive is transmitted to worm 8 through belt gearing 16, 18. Samples of the mix may be run off through a small outlet pipe 20 having a shutter control 21. The receptacle 1 can be emptied through a shoot 22 controlled by a shutter 23.
Patent GB-440435-A (GB)
Title: Improvements in magnetic devices for use in train control or railway signalling systems
IPC: B61L3/12
Filed: 1934-06-28
Abstract: 440,435. Recording and actuating signals on trains. HARRISON, H. H., 15, Mayville Road, Mossley Road, Mossley Hill, Liverpool. June 28, 1934, No. 19164. [Class 105] [See also Group XXXVII] Different signals are transmitted to a locomotive according to the polarity and number of track magnets which actuate a locomotivecarried polarized magnetic relay having an armature consisting of two short end bars b connected by non-magnetic plates p forming the central boss portion. The armature is polarized and maintained in a central position by a permanent magnet PM and when actuated by the collected transverse track flux a block F, carried by the armature deflects one or other of two contact springs L on to a fixed contact AC1. The circuits from the contact springs L include a reversing switch operated by the wheels or by the reversing lever so that the locomotive may travel tender first and correctly receive the signals. The signals may be recorded on a wheel-driven strip, home and distant signals and their settings being recognized by the difference in the number or direction of the markings. Permanent and electromagnets are used at signals, but at curves only permanent magnets are used to give appropriate effects, such as a partial braking.
Patent GB-1094800-A (GB)
Title: Improved composition for engine deposit removal
IPC: C11D7/50
Filed: 1966-05-02
Abstract: A solvent composition effective for removing polar and non-polar deposits from engine carburetters comprises (a) from 10-60% of a cyclic carbonate inner ester of formula <FORM:1094800/C4-C5/1> wherein R is hydrogen, alkyl, aryl, aralkyl, alkaryl having from 1-15 carbon atoms per group, (b) 5-70% of a C6 to C13 olefin, (c) 5-75% of a mononuclear aromatic hydrocarbon having 1-4 subtituents selected from hydrocarbon chains having 1-4 carbon atoms and chlorine.  5-75% of an ester and 5-50% of an ether may also be added, the boiling point of either being substantially lower than that of the inner ester above.
Patent GB-175934-A (GB)
Title: Improvements in moulds for casting stereotype plates
IPC: B41D3/00
Filed: 1921-07-16
Abstract: 175,934. Winkler, C. July 16, 1921. Stereotype.-In a stereotype mould, the water jacket for cooling the back of the cast plate is divided by a partition wall into two chambers, the water being admitted to the chamber adjacent to the plate and then passing through an opening in the partition wall into the other chamber, from which it overflows. The hollow core c is divided by the partition g into two chambers f, l in communication through the opening k in the wall g. A valve-controlled inlet pipe i is arranged at the. end of the chamber l remote from the metal inlet opening of the mould, the water escaping from the chamber f through the outlet m.
Patent GB-404022-A (GB)
Title: Improvements in or relating to photographic film spools
IPC: G03B17/30
Filed: 1932-07-07
Abstract: 404,022. Photographic roll-film spools. BAXENDEN, T. G., Lawrenny, Hempstead Road, Watford, and COLLYEAR, J. R., Leverno, Beechcroft Road, Bushey, both in Hertfordshire. July 7, 1932, No. 19234. [Class 98 (i).] The cylindrical body of an all-metal spool is formed by bending at its middle a half-round metal strip, wire, or rod of twice the length of the completed body so that the two halves abut along a plane through the axis of the body, the film slot, and the key slot. The body may be solid or hollow. Figs. 1 and 2 show a strip 1 of twice the length of the spool, which is pressed up to half-round section, and has parts 2 and 3 cut away to form the film and key slots when the body is completed by folding the strip about its middle and welding the halves together or securing them by means of the end discs. A solid spool-body may be similarly formed from a half-round length of wire or rod. The end discs may be attached as described in Specification 362,779, or by embossing the flanges in known manner.
Patent GB-293356-A (GB)
Title: Improvements in closing devices more especially applicable to automobile bonnets
IPC: E05B65/19
Filed: 1928-07-03
Abstract: 293,356. Arnouil, R. J. July 4, 1927, [Convention date]. Catches yielding to pull and pressure ; stud-and. socket fastenings.-A fastening for motor-vehicle bonnets comprises a plate a mounted on the chassis and engaging a socket s on the bonnet, the socket carrying a bar f<1>, Fig. 4, engaging notches in the plate a and a spring t holding the parts in closed position. In a modification, Fig. 5, a spring c is attached to the plate a which is toothed to engage teeth on the bar f<1>, the socket carrying a cam lever d to compress the spring. The plate a may be spring mounted and may engage guides on the socket. A lock or bolt may also be provided.