baber/WOPTO huggingface dataset:
Patent GB-487050-A (GB)
Title: Improvements in or relating to the roofing and covering of buildings and the glazing of greenhouses, frames and building structures in general
IPC: E04D3/14
Filed: 1936-11-14
Abstract: 487,050. Roofing and glazing. MURRAY, J. L. H. Nov. 14, 1936, No. 31129. [Classes 20 (iii) and 20 (iv)] A glazing bar or rafter for glass or other roofing- sheets G comprises a bearer A of wood or other material, a member B screwed thereon. having a groove for holding a wire clip W, a rocking glass &c. supporting bead D and a stepped adjustable lead or like clip F on the end of the wire. A plinth C screwed to the front of the bearer A supports the top of the next lower sheet G. The rocking bead D rests on pins on the member B and is gapped or has drainage grooves out in its undersurface.
Patent GB-465661-A (GB)
Title: Manufacture of materials resembling crepe
IPC: D03D15/56
Filed: 1935-11-11
Abstract: Materials resembling cr<\>zepe are made by heating a fabric, consisting of or containing artificial resin threads, to a temperature above the softening point of the artificial resin threads.  The artificial resin threads are preferably those produced by stretch-spinning processes or by stretching subsequent to spinning.  In an example, a fabric woven from a yarn containing threads of artificial resin produced as described in Specification 387,976 and threads of cellulose acetate, is immersed in a water-bath and heated to 75--80 DEG  C.
Patent GB-897509-A (GB)
Title: Electromagnetic clutch/brake assembly
IPC: F16D67/06
Filed: 1960-09-09
Abstract: 897,509. Friction clutches. SPERRY RAND CORPORATION. Sept. 9, 1960 [Sept. 10, 1959], No. 31196/60. Class 80 (2). An electromagnetic clutch/brake unit comprises circular housings 10, 11 for the solenoids 12, 12a and annular friction elements 16, 16a which are in permanent rubbing contact with an armature disc 15 on the driven shaft 13, such arrangement rendering unnecessary the use of thrust bearings. Housings 10, 11 are respectively coupled to a fixed member 20 and the drive-shaft 23 in such a way as to permit their limited axial movement upon energizing of the solenoids, e.g. by the use of Oldham couplings 21, 22. The elements 16, 16a may be made from a polyfluoride, nylon or asbestos compound.
Patent GB-1447925-A (GB)
Title: Electrostatic copying machine
IPC: G03G15/22
Filed: 1974-07-15
Abstract: 1447925 Electro-photography MITA INDUSTRIAL CO Ltd 15 July 1974 [17 July 1973] 31311/74 Heading G2H An electro-photographic copier includes sheetdiverting means 60 by which latent image bearing copy sheets 2, which either are photo-conductive or have received electrostatic latent images from a photo-conductive member, may be diverted through alternative developing apparatus. By the use of three colours of developer and a black, together with a set of colour-separation filters, sheetrecirculation means and a programme control which can be varied, the same apparatus can be used to produce black monochrome copies, colour copies, colour monochrome copies, colour separations and false-colour effects.
Patent GB-244484-A (GB)
Title: Improvements in wireless receivers of the superheterodyne type
IPC: H03J5/24
Filed: 1925-12-11
Abstract: 244,484. Levy, L. Dec. 12, 1924, [Convention date]. Thermionic heterodyne receivers; thermionic amplifiers and detectors; local disturbances, eliminating or limiting; thermionic generators; receiving set's, construction of.-A supersonic heterodyne receiver is adapted to work over a wide range of frequencies by the use in the local oscillator circuit of a plurality of coils adapted to be alternatively switched in circuit. Fig. 1 shows a generating valve 1 having an oscillatory circuit 9, 10 connected through a balancing condenser 14, 15, 16 to the input 19 of a high frequency valve 2. The signal input is connected across terminals 19, 20 and the output of the valve 2 is applied to a detecting valve 3 through a transformer 25. The intermediate frequency output is reflexed through transformer 26, 29 to valve 2 the output from which is applied by oscillatory circuit 23, 24 to valve 4. Valve 5 provides an additional stage of intermediate amplification, valve 6 is the final detector and valves 7, 8 low frequency amplifiers. The generating valve 2 is fed through a choke 12 and provided with a blocking condenser 11. Jacks may be provided so that the output may be taken from the plate circuit of either valve 7 or valve 8. A frame aerial may be connected across the input 19, 20 or a series parallel switch may be provided for condenser 17 and an open aerial employed. Fig. 3 shows the construction, the components being mounted on aluminium plates to avoid capacity effects due to the operator. Plate 44 carries a switch varying inductance 10, the filament rheostat, the aerial inductance switch 59, the condensers 9, 17 and the input and output connections and plate 43 carries the fixed intervalve couplings and the battery connections 67 and the panel 65 for the valves. The oscillator inductance 10 consists of coils 66 of small dimensions e.g. of the order of a centimeter and the coils are arranged at rightangles to the other coils in the set to prevent coupling. The circuit 29 has small inductance and is tuned to a frequency higher than the intermediate frequency to obtain stability. Specifications 133,306 and 143,583 are referred to.
Patent GB-757789-A (GB)
Title: Improvements in or relating to nodular iron
Inventor: IHRIG HARRY K
IPC: C21C1/10
Filed: 1952-12-11
Abstract: An as-cast spheroidal graphite cast iron, free from cerium, lithium, copper, and nickel, has the spheroidal graphite induced by the addition to molten cast iron of at least one sodium halide, the as cast iron being substantially free from sodium.  A reducing agent, e.g. calcium silicide, is added to reduce the sodium halide. Magnesium chloride may also be added along with sodium chloride. Specification 734,953 is referred to.
Patent GB-928330-A (GB)
Title: Improvements in or relating to gas detection in mines
IPC: F21V37/00
Filed: 1958-10-02
Abstract: <PICT:0928330/III/1> <PICT:0928330/III/2> An apparatus for testing gases in elevated localities in mines comprises a miners' flame safety lamp in communication with a gas container which is connected through an aspirator to a probe tube.  As shown in Fig. 3 the probe tube 11 is connected to a suitably valved squeeze bulb 12 and thence to an inflatable bladder 13.  Gas from the bladder may be passed via a tube 15 having a constricted portion (not shown) to a perforated ring 3 (Fig. 1) supplied by a pipe 5 which passes through the lower part of the safety lamp, said ring bringing the gas into the vicinity of the flame.  In other embodiments the perforated ring may be placed outside the gauzes of the lamp but under the housing containing them, or the gas may be supplied to an open-bottomed hood which envelops the safety lamp.  According to the above-mentioned Provisional Specification, the bulb 12 may be replaced by any other form of aspirator or pump and the bladder can be replaced by a container in the form of expansible bellows.
Patent GB-1262416-A (GB)
Title: Range-gated vision system
Inventor: BARNES WILLIAM GEDDES
IPC: G01S17/89
Filed: 1970-06-30
Abstract: 1,262,416. Laser range finding. STANDARD TELEPHONES & CABLES Ltd. 30 June, 1970, No. 31498/70. Heading H4D. A viewing system includes a pulsed laser wherein the time interval between pulsing the laser and gating an image detector is varied in synchronism with the colour employed in the display device. Generator 21 provides a staircase waveform which (i) pulses laser 10, (ii) adjusts variable delay 16 setting the range gate timing and (iii) adjusts the gains of amplifiers 18 through logic 22, setting the colour of the display. The laser output is varied in mean power or repetition frequency to provide constant illumination at all ranges. The image at each range is viewed after four stages of image intensification by a monochrome TV receiver 15 which feeds equal signals to the three guns of a colour TV tube 19 through amplifiers 18. Thus in the image on the screen the colour of an object indicates its range. The three-gun tube may be replaced by a dual phosphor screen tube whose display colour is varied by changing the beam energy, i.e. varying the anode and grid voltages. In this case logic 22 is not necessary. The generator 21 has a manual override so that the image at any particular range may be "held".
Patent GB-1150228-A (GB)
Title: Suppression of Sub-Harmonic Oscillations in Capacitive Voltage Transformers.
Inventor: HOWLE SELWYN
IPC: H02H7/05
Filed: 1965-07-23
Abstract: 1,150,228. Voltage measurement. ENGLISH ELECTRIC CO. Ltd. July 22, 1966 [July 23, 1965], No.31500/65. Heading G1U. [Also in Division H2 ] Damping of harmonic oscillations in a capacitive voltage divider 10, 11 coupled to a step down voltage transformer 14 is effected by a low reactance step up transformer 19 and capacitor 23 combination arranged not to resonate at the supply frequency but preferably at more than one third of this frequency. The core may have an air gap and may be arranged to saturate at a determined over voltage or sub harmonic of the supply frequency. The transformer circuit preferably has a resistance value such as to cause rapid damping of transient currents which resistance may be inherent in transformer 19 or in both transformers. Transformer 19 may be fed from a tap 24 or an extension of the winding 15, or from a secondary winding supplying instruments and relays, or a separate secondary winding. Secondary winding 22 may supply additionally other components such as linear or non-linear resistors and or inductors so as long as the secondary circuit when referred to the primary provides a reactive current component which substantially balances the magnetizing current of transformer 19. This transformer may be alternatively arranged as an autotransformer.
Patent GB-227977-A (GB)
Title: Improved process of and apparatus for drying highly watery material
IPC: F26B3/20
Filed: 1923-12-15
Abstract: 227,977. Fasting, J. S. Dec. 15, 1923. Filters.-The gases leaving a cement kiln are filtered by bodies 22, which fill the whole of the outlet end of the kiln, and which are circulated continuously through the kiln and a drying-cylinder 4. Specification 160,423, [Class 34 (ii), Drying systems &c.], is referred to.
Patent GB-847754-A (GB)
Title: Improvements in breathing apparatus
IPC: A62B9/02
Filed: 1958-10-02
Abstract: 847,754. Respiratory appliances. ROBERTSHAW-FULTON CONTROLS CO. Oct. 2, 1958. [Feb. 14,1958) No. 31519/58. Class 81(2). High altitude breathing apparatus, having a differential pressure-operated exhalation valve, has means for applying pressure to one side of the exhalation valve independently of the actuation of the inhalation valve. In the supply valve, oxygen is admitted under pressure to a conduit 30, Fig. 3, and passes to a flexible differential valve disc 40, the lower side of which is subjected to the same pressure through ducts 44, Fig. 4 and a metering orifice 48. A chamber 52 below a control diaphragm 56 is in communication with the interior of the face mask through an orifice 54, Fig. 3 and when the diaphragm is drawn down, on inhalation, it engages a lever 62, pivoted on a spring 74, Fig. 4, and opens a pilot valve 66 so as to exhaust the chamber 33 through duct 50. Consequently the valve member 40 moves away from its seating and oxygen flows from the supply and through ducts 34, Fig. 3, to the face mask. On exhalation, the diaphragm 56 is again raised so that the pilot valve is closed and pressure again builds up below the valve, member 40 to close it. A small flow of gas is permitted through orifice 94 to the space 92 above the diaphragm and when the apparatus is used at high altitudes, a closure member 88, actuated by an evacuated aneroid 97, closes an orifice 84 to seal the space 92, and the gas thereupon creates a pressure on the upper face of the diaphragm 56, with a resultant increase in the mask pressure. The altitude at which this device becomes operative may be set by a screw 106. At the same time, the pressure in the space 92 is communicated through a tube 120 to the pressure sensitive element of the exhalation valve so as to increase the exhalation pressure required to open it. A spring-loaded release valve 136 prevents excessive pressure in the chamber 92 and exhalation valve system.
Patent GB-417221-A (GB)
Title: Improvements in or relating to internal-combustion engines of the fuelinjection type
IPC: F02B19/10
Filed: 1933-03-29
Abstract: 417,221. Oil engines. PERKINS, F. A., 17, Queen Street, Peterborough. March 29, 1933, No. 31585. Divided out of 401,703. [Class 7 (iii).] To facilitate starting, a fuel-injection nozzle 17 is located in a side wall of a transfer passage 15 leading from the engine cylinder tangentially into a combustion chamber 14, and is arranged to direct fuel towards the engine cylinder. Part of the fuel is also directed towards the combustion chamber, which is cylindrical and provided with a removable cap 33, and which may contain a hot plug or the like to assist the ignition at starting. The nozzle is located between the inlet and exhaust valves and passes through a sleeve 25 in a water jacket 26. Specifications 270,673, [Class 7 (iii)], and 401,703 are referred to.
Patent GB-798127-A (GB)
Title: A locking device for gramophone arms
Inventor: BICKERS WILLIAM ERNEST
IPC: G11B3/30
Filed: 1955-11-04
Abstract: 798,127. Gramophones. PLESSEY CO., Ltd. Oct. 29,1956 [Nov. 4, 1955], No. 31613/55. Class 40 (2). A lock to hold a gramophone pick-up arm a in inoperative position comprises a spring-loaded locking member c with a clamping part j adapted to project over the pick-up arm to clamp it under the spring action on to a rest d; the member c may be arranged on the outer side of the arm a and may have a hook-shaped extension i to hold captive a record-steady arm b of an automatic record changer. As shown the member c is of flat metal with a handle k and is rotatable in a vertical bore in a synthetic resin rest d having a pip l to locate the arm a; a narrow extension n of the lock passes through a small bore in a transverse wall m forming an abutment for a helical spring g tapered at its lower end to engage behind a head o on the extension n. When the gramophone is in use, the lock is turned clear of the arms a, b and so retained by engagement in a notch h. The member c may be given a soft coating, e.g. of polyvinyl chloride, or may be made of a synthetic resin.
Patent GB-485578-A (GB)
Title: Improvements in tunnel ovens
IPC: F27B9/16
Filed: 1936-11-19
Abstract: 485,578. Tunnel kilns. GIBBONS BROS., Ltd., and EDWARDS, E. W. Nov. 19, 1936, No. 31661. [Class 51 (ii)] Emission of hot gases, preventing.-Flow of hot gases from the firing-zone of a tunnel oven to and out of the cooling-zone is prevented by directing streams of air into the exit end of the tunnel through nozzles 17 arranged to deliver into the spaces between the charge and the side walls and roof of the oven. As shown, the nozzles deliver only into the upper half of the tunnel, but additional nozzles at a lower level may be provided. The air may be drawn from the atmosphere, or from a preheating chamber as described in Specification 486,628 and the pressure of delivery, which is preferably only slightly greater than that due to the outwardly moving gases, is controlled either at the supply fan or by dampers 21. The nozzles are preferably of fish-tail form as shown, but a number of small pipes or an apertured pipe or pipes may be used.
Patent GB-161128-A (GB)
Title: Improved firing-mechanism for guns
IPC: F41A19/28
Filed: 1920-11-09
Abstract: 161,128. Auto-Ordnance Corporation, (Assignees of Eickhoff, H. T.). June 29,1920, [Convention date]. Machine guns.-Relates to guns which are fired automatically when the breech closes by means of a hammer or firing-lever mounted on the breechblock with a projecting portion adapted to engage a fixed abutment as the breech-block reaches its forward position. According to the invention, the lever is pivoted at an intermediate point on the breech-block, with its projection extending into a longitudinal recess at the front of the breechblock, so that the lever does not extend trans. versely beyond the outline of the breech-block. In the construction shown, the lever 24, pivoted to the breech-block 16, 17, has a long arm 26 en. gaging the firing-pin 18, and a short arm 24 extending into the recess 31 and adapted to engage a fixed stop 30, so that just as the breech-block reaches the closing position the firing-pin is advanced.
Patent GB-647636-A (GB)
Title: Improvements in or relating to handles for inflators for cycle tyres and the like
Inventor: BLUEMEL FRANK WILLIAM
IPC: F04B33/00
Filed: 1948-12-08
Abstract: 647,636. Pump handle. BLUEMEL BROS., Ltd. Dec. 8, 1948, No. 31744. [Class 61(i)] A hollow tubular handle 10 for a bicycle pump is moulded by injection or compressior on to a tubular liner 16 which is formed of sheet metal, of a thin walled metal tube, or preferably, of stout paper. The handle is formed from synthetic resin, celluloid, or thermosetting material ano the liner may be corrugated as at 17. The top of the handle is formed with a boss 11 having ribs for connection to the inside of the handle.
Patent GB-869513-A (GB)
Title: Automatic call information recording system
IPC: H04Q3/00
Filed: 1957-10-11
Abstract: 869,513. Automatic exchange systems. STANDARD TELEPHONES & CABLES Ltd. Oct. 11, 1957 [Oct. 15, 1956], No. 31787/57. Class 40 (4). Metering information is registered temporarily on a magnetic drum at the beginning of a toll call, and when the call is terminated this information is transferred to a magnetic tape from which a punched card is prepared in respect of the call. In a subscriber 7, Fig. 2, dials a single digit 1 the call is extended to an outgoing toll repeater such as 9, Fig. 3, and the automatic recording equipment is seized. Dialled digits are sent out over trunk 2 and also to trunk circuit 10. Each digit is encoded at 12 and entered on a track of a magnetic drum, each track being associated with a trunk circuit. In known manner the directory number of the calling subscriber is ascertained and also entered on the drum. When the called party answers circuits 24, 25, 12 enter the time of day. When the calling party hangs up record analyser 26 starts up a tape machine 4, extracts the information relating to the call from the drum and causes circuit 32 to record it on the magnetic tape 34. Circuit 32 also enters the disconnect time. Circuit 36 enters synchronizing pulses on an auxiliary track of the tape. When the information relating to the call is recorded the tape machine is released. At a convenient time the tape is removed and punched cards are prepared from it in respect of the various calls in the manner described in Specification 813,886. In a modification, the magnetic tape is omitted and a paper tape is prepared directly from the magnetic drum. The station identification circuit may be omitted, the subscriber then dialling his own station digit after the toll access code. For a toll call originating in a tributary office, Fig. 1, the marking put on the private wire by trunk circuit 10 is fed to the selector 52 incoming to the central exchange and so to a rectifier matrix 54 to identify this selector. Circuit 56 relays the request for identification of the calling subscriber by sending multi-frequency pulses indicating the identity of the inter-office trunk to receiver 60. Trunk selector 61 then marks the private wire of the relevant repeater 50. This marking is fed over the calling line circuit to a rectifier matrix 64 which is set by party selector 62 to supply the directory number to circuit 66. This number is then transmitted to circuit 70 in the main exchange. Specifications 763,828 and 777,099 also are referred to.
Patent GB-910044-A (GB)
Title: Improvements in or relating to mixers
IPC: B01F29/83
Filed: 1960-09-15
Abstract: 910,044. Concrete &c. mixers. EIRICH, W., and EIRICH, G. Sept. 15, 1960 [Sept. 15, 1959], No. 31827/60. Class 86. A rotary pen-type mixer has a container 1 supported on a ball-bearing 4 and rotated about a vertical axis by a reactor 5 and gearing 6. Mixing blades 18, 22 are mounted on bars 14 which rotate about an axis 12 parallel to the pan axis. The blades 18 are close to the pan bottom and 20 to 40 degrees displaced from blades 22 which are carried above the blades 18, as shown, the direction of rotation may be such that the blades 22 may work in the furrow of the blades 18. The blades 22 are mounted rigidly but adjustably and replaceably on the arms 14 and the blades 18 resiliently as by torsion springs 17. There may be one or a plurality of such rotating blade systems each having two or more blades. There may also be cage-like high-speed stirrers as at 25 revolving in either direction about vertical shafts 26 and comprising eight bars 29 of triangular cross-section depending vertically from the rim 28. In a modification, there may be four wound bars the free lower ends of which are curved forwardly or backwardly in relation to the direction of rotation (see Figs. 5 and 6, not shown). Alternatively, each high-speed stirrer may be of skeleton helical form, or a solid helix, or two coaxial helices of opposite hand (see Figs. 7, 8 and 9, not shown) ; the upper turns of the helix may be of decreased pitch. Each stirrer or blade system may be independently driven as by motors 8, 9.
Patent GB-478848-A (GB)
Title: Improvements in and relating to the air-space insulation of electric signalling cables
IPC: H01B11/00
Filed: 1936-11-20
Abstract: 478,848. Cables. FELTEN & GUILLEAUME CARLSWERK AKT.-GES. Nov. 20, 1936, No. 31845. Convention date, Nov. 27, 1935. [Class 36] An air-space insulation is built up about a conductor by winding helically on the conductor a spacer consisting of two or more thin helical polystyrol threads 1 arranged coaxially and with the turns of one thread alternating with those of the other thread or threads.
Patent GB-464091-A (GB)
Title: Improvements in and relating to sprocket drums for cinematographic apparatus
IPC: G03B1/42
Filed: 1936-11-21
Abstract: 464,091. Kinematograph apparatus. SIEMENS & HALSKE AKT.-GES. Nov. 21, 1936, No. 31947. Convention date, Nov. 23, 1935. [Class 97 (i)] A detachable sprocket comprises a body portion adjustably secured to a support securable to the sprocket spindle in one angular position only ; the construction permits the ready exchange of sprockets adapted for others for films of different types, or of the same type. As shown, the sprocket spindle 1 carries a fixed bush 2 provided with a driver pin 3. The sprocket comprises a body portion 4 secured to a support 7 by three screws 6 passing through holes in a washer 8 and arcuate slots in the support 7 ; the screws and slots permit angular adjustment of the parts 4, 7 by the manufacturer. The support 7 has a radial slot 7d to engage the pin 3 and. carries a screw 9 by which.it is secured to the spindle. The screw has a thread only on an enlarged end 10 and is held in the support 7 after it has been screwed through a mating thread 7c. The screw engages a tapped hole 1a in the end of the spindle.
Patent GB-728313-A (GB)
Title: A motorcycle windscreen
IPC: B62J17/04
Filed: 1952-12-17
Abstract: 728,313. Motor-cycle wind-screens. WORTMANN,F.X. Dec. 17,1952 [Dec. 18, 1951], No. 31988/52. Class 136(1). A motorcycle windscreen consists of two parts, a rearwardly-inclined lower part a and a shorter, less steeply inclined upper part b, the latter being positioned above and forwardly of the lower part so as to leave a sight gap at the level of the driver's eyes e. With the motorcycle in motion, the velocity of the air stream d leaving the free edge f of part a is sufficient to maintain its direction of flow across the gap thus preventing any direct draught of air therethrough whilst allowing the driver an unimpeded view, the part b acting as a guide vane for the air stream as it reaches the other side of the gap. Specification 241, 559, [Class 103(ii)], is referred to.