baber/WOPTO huggingface dataset:
Patent GB-810874-A (GB)
Title: Improvements in, or relating to, wick burners
IPC: F23D3/00
Filed: 1956-06-21
Abstract: 810,874. Wick burners. EGAN, H. B. J. June 21, 1957 [June 21, 1956], No. 19188/56. Class 75(1) In a wick burner having an annular wick carrier 14 adjustable axially in a cylindrical holding unit fixed within and coaxially of a preforated body 1, the holding unit comprises two coaxial tubes, the inner one 6, being attached to the outer one 7 by two longitudinal diametrically opposed spacing strips 8 which divide the inter-tube space into two compartments each adapted to receive a separate initially flat wick 13 which assumes the crosssectional shape of the corresponding compartment as it is inserted into the unit. The outer tube 7 is fixed within the perforated body 1 and the inner tube 6 has a closed end which projects beyond the bottom of the outer tube 7 to facilitate insertion of the wicks into the carrier. Two diametrically opposite air ducts 12 communicating between the perforated body 1 and the interior of the inner tube 6 through the inter-tube space are each formed by bending the lower wider portion of a strip 8 into a closed duct and inserting it with a tight fit into corresponding apertures in the walls of the inner and outer tubes. A wick carrier 14 has longitudinal diametrically opposed slots 14a from the upper edge terminating short of the lower edge of the carrier so as to clear the air ducts 12 when inserted in the outer tube 7 and it has internal ears 15 provided on the edges of the slots to retain the wicks in the carrier and prongs 16 projecting from the upper edge impinge upon the external surface of the wick to prevent relative movement between wick and carrier, To enable the wick carrier to be inserted into and removed from the holding unit without dismantling any other burner component, a winding spindle 21 radially disposed of the perforated chamber 1 operates a pinion 2 engaging a rack 18 fixed on the carrier 14, and said spindle is mounted in a sleeve 22 secured to the body 1 and is axially displaceable in the sleeve against action of a spring 24 located between the pinion and body 1 to demesh the pinion from the rack when the carrier is to be withdrawn from the holding unit. At its upper end, the outer tube 7 reduces in diameter so that as the wick carrier 14 is raised within the holding unit, the adjacent edges of the projecting wicks are forced together to provide, upon lighting the wick, an unbroken ring of flame. According to the Provisional Specification the inner and outer tubes 6, 7 are held together by opposed longitudinal ribs formed on the inner unit 6 and of channel section, the bases thereof being curved to seat upon and for attachment to the outer cylinder.
Patent GB-717240-A (GB)
Title: Method of charging electroscopes
Inventor: ANDREWS THOMAS DESMOND HUDSON
IPC: G01T1/142
Filed: 1951-08-15
Abstract: 717,240. Electroscopes. DAVIS, WYNN & ANDREWS, Ltd. July 28, 1952, [Aug. 15, 1951.] No. 19191/51. Class 37. An electroscope of the low capacitance dosimeter type is charged by means of a small hand-operated magneto detachably, secured to the electroscope. In a case 10 is mounted a small magneto 11 of the type in which the armature comprises a permanent magnet which is rotated or oscillated between pole pieces 14 by means of a knob on the shaft 16, which protrudes through the side of the case. The magneto 11 is provided with a contact-breaker 17 and is connected so that one side of its output is fed to a charging pin 18 carried by a disc 19 of highly insulating transparent material in a socket 12 which is adapted to receive the end of the dosimeter carrying the charging pin. A disc 19a of transparent material closes the outer end of the socket 12 to prevent entry of dust whilst allowing light to pass through. The other side of the magneto output is connected to the socket 12. A discharge gap 20 is arranged on the high voltage side of the magneto 11, across which the current passes to one side of a condenser 21 the opposite side of which is connected to the earth side of the magneto. The condenser is thus in parallel with the dosimeter and should have a capacitance greatly in excess of that of the dosimeter. The case 10 with the dosimeter attached is held in one hand and the scale viewed through the eyepiece. The armature shaft 16 is then rotated by the other hand by means of the knob until the contactbreaker points open and a charge is fed to the dosimeter. This is repeated until the indicating element has moved to the zero position.
Patent GB-918994-A (GB)
Title: Improvements in or relating to plug and socket connectors
Inventor: JESMAN LEON
IPC: H01R27/00
Filed: 1960-05-31
Abstract: 918,994. Two-part couplings. J.F.T. PRODUCTS Ltd. June 19, 1961 [May 31, 1960], No. 19223/60. Class 38 (1). An electric plug comprising a body 1 and a conducting centre-pin 3 mounted concentrically in a conducting or insulating shell 4 has a detachable conducting extension 6 on the pin 3, whereby the plug may be adapted for different sockets.
Patent GB-192735-A (GB)
Abstract: 192,735. Carelli, H. H., and Sordelli, E. Oct. 6, 1921. R÷ntgen-ray apparatus.-A table for R÷ntgenray purposes has arrangements which permit the patient to be moved about a vertical axis or tilted into any position, and supporting means for the R÷ntgen apparatus which moves with the table and can be rotatably and otherwise adjusted. The table 16, Figs. 1, 2, and 3, is mounted on a frame 3 which rotates in the base support 1. The table can also be t'lted by means of circular racks 6 and gearing 7, 8, from the crank shaft 11. The patient is enveloped in a flexible sheet 36 hooked over a hexagonal bar 35<a> and suspended above the table 16 from the transverse bars 18b of the frame 19, being raised and lowered from the handle 38 by pulley tackle. A revolving foot-rest 37 to which the patient's feet are strapped is attached to a bar 32 which is vertically adjustable on the uprights 19. By turning the hexagonal bar 35<a> about its axis the patient can be turned round to any desired position. The R÷ntgen ray apparatus is carried by a frame 25 on a platform 22 which is moved laterally on the bars 18<a> of the frame by cables 20 from one of two crank shafts 11<b>. The frame 25 is also rotatable on the platform and is rotated by other cables from other crank shaft 11<b>. The R÷ntgen apparatus 39 is adjustably mounted on a sleeve 29 itself vertically adjustable on the pillar 28. This pillar is pivoted on the frame 25 and is held in any angular position by a clutch 26 which is released by a Bowden wire 27 passing through the pillar.
Patent GB-751182-A (GB)
Title: Improvements in steering wheel arrangements, particularly for motor vehicles
IPC: B62D1/10
Filed: 1954-07-01
Abstract: 751,182. Steering wheels. DAIMLERBENZ AKT.-GES. July 1, 1954 [July 2, 1953], No. 19329/54. Class 80(4) A vehicle steering wheel which may be tilted upwardly about a joint 5, Fig. 1, on the hub 6 to facilitate entry and exit of a driver comprises a rim 1 which is connected to the joint 5 by spokes arranged as shown in Fig. 2 in order to provide a large visibility area 9 clear of spokes. A retaining clip 7 may be provided on the hub. During straight-ahead driving the lowermost spoke is horizontal and lies below the steering wheel axis so that it may be used as a hand support without rendering the steering unstable. In a modification providing a greater freedom of entry and exit a small hub 11, Fig. 3, has an oblique extension carrying a tilting joint 13 which serves as the sole support of the wheel. Two spokes-which, together with the axle of joint 13, may be constructed from a single steel wire-at first extend from the joint 13 parallel to each other and parallel to the plane of the wheel, are then cranked upwardly to meet the plane of the wheel and are finallly bent outwardly in the plane of the wheel to meet the rim 1
Patent GB-708953-A (GB)
Title: A process for the production of iron catalysts for the hydrogenation of carbon monoxide
Inventor: KOELBEL HERBERT
IPC: B01J23/78
Filed: 1951-08-16
Abstract: An iron catalyst suitable for Fischer-Tropsch synthesis is prepared by precipitating an aqueous solution of an iron salt, the acid radical of which is capable of forming a water soluble alkaline earth metal salt, with a mineral of the alkaline earth group which yields alkaline earth metal oxides on heating and which contains not more than 1 per cent. of silicates (calculated as SiO2 soluble in the precipitation solution, and thereafter precipitating the alkaline earth metal salts by the addition of a suitable alkali metal compound.  Minerals such as marble having the requisite low silicate content may be used in finely divided form or if the silicate content is too high, the mineral is calcined optionally with the addition of iron nitrate to reduce the soluble silicate content according to examples (1) a crude dolomite is calcined at 1000 DEG C. and finely divided and then added to a solution of ferric nitrate and copper nitrate at 95 DEG C. A sodium carbonate solution is added and the mixture filtered and the precipitate washed free from nitrate ions. Up to 3 per cent. of potassium carbonate (calculated on the iron) may be added to the washed precipitate and the resulting catalyst dried at temperatures not exceeding 100 DEG C.  The catalyst may be reduced before use with carbon monoxide and/or hydrogen.  Details of hydrocarbon synthesis from carbon monoxide and hydrogen using the above catalyst are given.  (2) Marble containing less than 1 per cent. silicate is finely ground and added to a solution of ferric and cupric nitrates.  Sodium carbonate solution is then added and the precipitate washed and dried at 80 DEG C.
Patent GB-1494548-A (GB)
Title: Electrostatic speaker systems
IPC: H04R19/02
Filed: 1975-05-08
Abstract: 1494548 Electrostatic speakers KOSS CORP 8 May 1975 [21 June 1974] 19386/75 Heading H4J An electrostatic loud-speaker system includes a step-up transformer having its secondary winding connected to the fixed plates of an electrostatic driver to form a parallel resonant circuit which is tuned to a frequency in a preselected audiofrequency range. The driver produces sound within a part of the frequency range to be reproduced. Two or more step-up transformers have their primaries connected in series. Their secondaries are connected to fixed plates of electrostatic drivers to form parallel resonance circuits tuned to different preselected frequencies to provide a system which embraces a wide audio frequency band. A four-way electrostatic speaker system includes four step-up transformers 22, 32, 37, 42 (Fig. 1) having their primary windings 27, 33, 38, 43 connected in a series-parallel circuit across the output terminals of an audio frequency amplifier 12. The impedance reflected into the primary winding of each step-up transformer is such that the attached electrostatic driver 23, 30, 35, 40 receives frequencies within its operating range. No separate crossover network is needed. Resistors or other impedance devices 17, 19 protect the amplifier 12 from excessive currents and consequent damage. Devices 17, 19 may be omitted if the ohmic resistances of the step-up primary windings are sufficiently high. As described, a bass unit 13 is tuned to a frequency of approximately 47 Hz and its driver operates over the frequency range 30-250 Hz. Its driver 21 includes 6 panels, each of which has a pair of fixed plates 23, 24 and a diaphragm 25. Diaphragm 25 may include an electret foil but preferably does not. The mid-bass unit 14 resonates at approximately 700 Hz and operates over the frequency range 250-1500 Hz. The driver 30 is a single panel. The treble unit 15 is tuned to a frequency of approximately 2300 Hz and operates over the frequency range 1500 to 5000 Hz. Its driver 35 includes two panels. The tweeter unit 16 is tuned to a frequency of approximately 9200 Hz and operates over the frequency range 5000 to 20,000 Hz. The driver 40 comprises a single panel. The resistors 17 and 19 are selected to provide a total of 6 ohms in each series branch 18, 20. In a two-way speaker system (not shown) two electrostatic drivers are designed to cover the entire audio spectrum and are connected in series to form a single branch. Bass and treble drivers are connected to step-up transformers and the inductances of the secondary windings are selected to tune each unit to a frequency within the designed operating range. At the crossover point the impedance of the two series connected primary windings are equal in value and the bass and treble units share the applied audio voltage equally at the crossover frequency. The invention can be applied with equal facility to speaker systems containing any number of speaker units.
Patent GB-258236-A (GB)
Title: Means for reducing the compression in internal combustion engines during the starting period
IPC: F01L13/08
Filed: 1926-08-05
Abstract: 258,236. Barbarou, M. J. B. Sept. 9, 1925, [Convention date]. Starting.-A distributor 2, preferably driven by the engine cam-shaft 1, connects each cylinder with the admission pipe for a part of the compression strode during the starting period. in order to return a part of the charge. As shown, the casing of the distributor is connected to the admission pipe by a return pipe 5 and to the engine cylinders by pipes 3 provided with cocks which are simultaneously opened at starting by a handle.
Patent GB-830805-A (GB)
Title: Improvements in or relating to fibrous materials
Inventor: LARMAN WILLIAM THOMAS
IPC: D01D5/06
Filed: 1957-06-20
Abstract: <PICT:0830805/IV (a)/1> The "rod-like" fibrous product of the parent Specification (according to which a solution of a filament-forming substance is extruded through a large number of closely-spaced orifices distributed over the whole of a circular area into a coagulating liquid and the mass of filaments so formed is withdrawn at a take-up speed which is less than half the extrusion speed) is smoothed and compacted by rolling between two surfaces.  The material may be rolled continuously with its production or may be first cut into short pieces.  The space between the rolling surfaces may diminish in the direction of travel of the material. As shown, short pieces 9 of the material are fed from a plane 8 between the surfaces 2 and 6 provided by a concave member and a rotating cylinder respectively, the axis of the cylinder being located so that the space between the surfaces diminishes towards the discharge shoot 10. One or both surfaces may be heated and the material may be surface-treated with a solvent, or the surfaces may be wetted with water.  Alternative forms of apparatus having planar or spiral surfaces or reciprocating surfaces, e.g. a pair of metal bands between which the material passes longitudinally, are described.  The material may be of cellulose acetate or triacetate.  Specification 520,451 also is referred to.
Patent GB-591788-A (GB)
Title: Improvements in drilling and like machine tools
IPC: B23B47/20
Filed: 1944-10-10
Abstract: 591,788. Drilling, tapping, &c. SIEMENS-SCHUCKERT (GREAT BRITAIN), Ltd., and TURNER, W. R. Oct. 10, 1944, No. 19528. [Class 83 (iii)] In a machine for performing drilling, reaming, tapping and like operations on a succession of work pieces, a turret work holder is intermittently rotated to present the work, in turn, to gauging machining and ejecting stations. The turret is provided with pressure means for clamping the work, operated by cam mechanism, further cam means operating the gauging device and serving to disconnect the drive to the turret during machining of the work piece. As applied to tapping, the turret comprises a flanged disc 1 keyed to a shaft 5 journalled in a fixed bracket 7. The flange 10 provides a seating for clamping ring 2, the abutting surfaces being provided with co-operating radial depressions 3 to form pockets 4 which are slightly smaller than the work pieces they contain. The disc and ring are parted against the action of a spring &c. to allow insertion of the work. A variable speed motor 8 rotates the disc 1 intermittently through a pinion 9 and gear-wheel 9<1> on a spindle 11 carrying a timing cam 12 on which is mounted a pawl 13 driving a ratchet-wheel 14 keyed to a shaft 5. The angular movement of the turret for each revolution of the shaft 11 is determined by a shroud 15 which allows the pawl 13 to engage only the required number of teeth in the ratchet. Drilled holes 4<1> in alignment with the work pockets provide passage for a gauging pin 16 guided in a hole in a fixed bush 17. Fast on the spindle 11 is a cam 18 actuating pin 16 against spring 19, to eject any faulty work, and a similar pin 16a ejects finished work mounted in bush 17a by which work is finally ejected after machining. A tapping head 20 is fed toward the work at the machining position by a weight and chain when a roller 26<1> on lever 25 passes over a step on the cam 12 ; further movement of the cam causes the lever to retract the tool head. The turret is indexed by a plunger 27 engaging a recess in the disc 1 when pushed forwards against a spring 33 by a cam 31 on cam disc 12. Blanks may be fed to the pockets by a hopper. Further gripping pressure adjustable at 37 is applied to ring 2 by a lever 35 fulcrumed at 36 and co-operating with cam 34 and a roller 35<1>.
Patent GB-256644-A (GB)
Title: Methods of and apparatus for transferring high frequency electrical energy
IPC: H03H2/00
Filed: 1926-08-07
Abstract: 256,644. White, S. Y. Aug. 8, 1925, [Convention date]. Coupling aerial and detector circuits.-Combined capacitative and magnetic coupling in additive phase are employed between two circuits so that the degree of coupling with frequency varies in a predetermined manner and preferably remains constant. The Figure shows magnetic coupling coils L1, L2 and a common condenser C3 to the aerial and closed circuits with a variable condenser C2 for tuning. In a modification the coil L1 is dispensed with.
Patent GB-199274-A (GB)
Title: Improved device for holding golf and other balls during the painting thereof
IPC: B05C13/02
Filed: 1922-07-17
Abstract: 199,274. Betjemann, J. G. July 17, 1922. Coating, work holders for.-A device for painting golf-balls, &c. comprises a base 1, Fig. 1, carrying supports 2, 3, fitted with centres 4, 5. The centre 4 is fixed, whilst centre 5 is rotatably mounted and is fitted with two or more prongs to grip the ball and enable it to be rotated. At least one centre is resiliently mounted, preferably by a spring 12, as shown in Fig. 3, and the supports 2, 3 may be resilient to allow the ball to be introduced. The device may carry a removable tray 9, fitted with prongs 10 or 11, for the reception of the ball after painting.
Patent GB-147679-A (GB)
Title: Feeding device for grinding machines
IPC: B24B47/04
Filed: 1920-07-08
Abstract: 147,679. Norton Co., (Assignees of Wilcox, J. S., Turner, A., and Dunbar, H. W.). June 28, 1915, [Convention date]. Driving and feed devices.-The crossfeeding mechanism of grinding - machines, is so arranged that the feed-pawl of the ratchet-gearing performs its idle stroke out of contact with the ratchetwheel. The mechanism comprises a feed screw driven through gearing 24, 25 by a ratchet-wheel 22 mounted on a fixed stud 23 and moved by means of a feed-pawl 34. This pawl is operated, through a link 36, by a crank-pin 21 carried by a disk 20 connected to a pinion 18 in engagement with a rack 17, which is connected to a sleeve 16 adjustable on the curved part 15 on a lever 13 pivoted at 14 and adapted to be engaged by dogs 11, 12 carried by the reciprocating work-carriage 10. On a sleeve 30, fixed to the machine frame and concentric with the ratchet-wheel 22, is rotatably mounted .an arm 29, frictional resistance to the angular movement of which is provided by means of a friction disk or spring washer 31 and a nut 33. The other end of the arm 29 carries a stud 35 forming a pivot for the feed-pawl 34 on which is mounted a tooth 37. The stud 35 also supports a cam 38 having two inclined flat faces adapted to be engaged by a spring-pressed plunger 39 slid- .ably mounted in the pawl 34 and normally engaging the right-hand face of the cam. With the parts in the position shown in Fig. 5, movement of the carriage 10 to bring the dog 11 into contact with the lever 13 moves the rack 17 to the left, and this rotates the crank-pin 21 along the dotted-line path to position 21<a>. During the downward movement of the crank-pin, the link 36 rotates the pawl about the stud 35, the frictional resistance preventing rotation of the arm 29, until the tooth 37 engages the teeth of the ratchet-wheel; further movement of the crank-pin causes rotation of the arm and the ratchet-wheel, whereby the grinding-wheel is fed forwards. As the crank-pin passes its lowest point, the link 36 moves the pawl to lift the tooth out of engagement with the ratchet-wheel until the plunger 39 engages the cam 38, when the arm moves upwardly and the parts are restored to the original position. The automatic feed may be cut out by moving the pawl to bring the plunger 39 into engagement with the left-hand face of the cam. Manual feeding is brought about by means of a handle 50 carried by a lever 51 loosely mounted on the stud 23; the lever also carries a shield 53 projecting over the teeth of the ratchet-wheel to limit the feed. The Specification as open to inspection under Sect. 91 (3) (a) comprises also a positive stop for the cross-feed during manual operation thereof. This comprises a part 54 on the lever shaped as shown in dotted lines in Fig. 3, and having a radially-formed end 55 with a stud 56 therein adapted to engage respectively with the end of the pawl and a recess 58 therein. This subjectmatter is not described in the Specification as accepted.
Patent GB-1408521-A (GB)
Title: Apparatus for determining the length of a moving object
IPC: G08G1/015
Filed: 1973-04-25
Abstract: 1408521 Measuring the length of moving objects DSO RESPROM 25 April 1973 [27 April 1972] 19699/73 Heading G1A [Also in Division G4] The invention relates to the photo-electric measurement of the length of a moving object (e.g. vehicle) and subsequently determining whether the length is greater or less than one or more reference values. The length is measured by the ratio of the time taken for the front of the vehicle to traverse the distance between two photo-cells and the time for the whole vehicle to pass one photocell. Two separate light sources may be used Fig.1 (not shown) or a single source 8 and a beamsplitter 9 with two photo-cells 10, Fig.3. The circuit arrangement is symmetrical to accept vehicles 21 travelling in either direction, and comprises a photo-cell output detector 11 arranged to set a flip-flop 13 (e.g. in the top channel) as vehicle 21 obscures the first beam. The flip-flop 13 is reset by the signal from the lower channel (as the vehicle enters the second beam) resulting in a pulse of width t x  at the output of gate 14. This triggers monostable 16 to enable gate 15 to generate a pulse of width tk from the lower channel signal. These pulses are fed to a comparator circuit 17 where the ratio t k :t x  (representing the length of the vehicle in terms of s the effective distance  between the light beams), is compared with a reference value. A plurality of reference values may be provided, so that the vehicle can be classified into one of a number of length ranges. As shown the comparator outputs are fed to a device 18 to operate counters 19. Alternatively the pulse-width-signals may be converted to a digital form before comparison.