baber/WOPTO huggingface dataset:
Patent GB-391859-A (GB)
Title: Improvements in the manufacture and production of dyestuffs for dyeing cellulose esters and ethers
IPC: C09B1/28
Filed: 1931-11-06
Abstract: Anthraquinone dyes suitable for dyeing cellulose esters and ethers are made by treating 1 : 4 : 5-tri- or 1 : 4 : 5 : 8-tetra-aminoanthraquinone with alkylating agents, the duration of the reaction and the amount of alkylating agents being restricted in such a manner that at least one amino group is alkylated with an unsubstituted alkyl radicle and at least one amino group remains unaltered.  In examples, methanol in concentrated sulphuric acid and toluene sulphonic acid ethyl ester in trichlorobenzene are used as alkylating agents.  Methyliodide and dimethyl or diethyl-sulphate are also specified. Specifications 22128/01, [Class 2, Acids and salts, Organic &c.], and 282,853, [Class 2 (iii), Dyes &c.], are referred to.
Patent GB-442489-A (GB)
Title: Improvements in or relating to devices for the control of the pile feed for sheet separating and feeding apparatus
IPC: B65H1/18
Filed: 1934-08-07
Abstract: 442,489. Feeding sheets. SPIESS, G., 78, Zschocherschestrasse, Leipsic, Germany. Aug. 7, 1934, No. 30856/35. Convention date, Aug. 5, 1933. Divided out of 442,445. Drawings to Specification. [Class 100 (i)] In a sheet-feeding device of the kind in which the sheets are separated by a suction separator and the raising of the pile is controlled by a snifting valve arranged in the suction conduit of the separator, the snifting valve is controlled by a pile feeler which also acts as a blower. The invention is described in connection with a sheet feeding device which is the same as that described in Specification 442,445. The claims of the two Specifications differ.
Patent GB-152889-A (GB)
Title: Improvements in sparking plugs for internal combustion engines
IPC: H01T13/08
Filed: 1919-12-11
Abstract: 152,889. Taylor, S. E., Ellis, F. O., and Archer, G. E. T. Dec. 11, 1919. Sparking-plugs. - Relates to sparking-plugs e. Fig. 1, detachably secured by a bayonet joint to an adaptor a, Fig. 2, serewed to the engine cylinder. According tc the invention, the plug body e is formed with external slots f adapted to engage internally projecting pins d in the adapter, and this joint is combined with a spring catch o and an insulating handling flange m. The catch or lever o is mounted beneath the milled flange m on the plug e but has one end q against the periphery of the flange, and this end q is gripped with the flange when the plug e is to be attached to the adapter a. When the grip is released the end r of the catch springs out of a recess in the plug e and interlocks with notches or serrations n in the adaptor a, thereby preventing accidental separation of these parts.
Patent GB-497874-A (GB)
Title: Improvements in pattern control mechanism for looms, knitting and like machines
IPC: D03C3/20
Filed: 1937-11-12
Abstract: 497,874. Photo - electric control of knitting-machines and looms. FISHER, G., and TANDLER, W. S. Nov. 12, 1937, No. 31109. Convention date, Nov. 13, 1936. [Class 40 (iii)] [Also in Groups IX and VIII] A pattern-scanning device 53 and a hammer 48 controlled thereby are mounted on a carriage 42 which is moved to draw the device 53 across the pattern 55 and the hammer 48 past a row of selector elements 35, some of which are knocked into the position shown in dotted lines in Fig. 1. As shown, the device 53 is of the photo-electric type and the pattern 55 a colour pattern. The scanner 53 is mounted on slide rods 58 fitted with stop pins 58a, and the rods 58 engage buffers 60 to move the scanner relatively to the slide 42 at the end of each stroke, the scanner always being in advance of the hammer 48 to allow for time lag of operation. At each stroke of the carriage 42, one arm of a bell-crank lever 61 which is in front of the hammer 48 restores all the selectors to normal position, and the particular ones selected pass under the raised rear end of the bell-crank lever 61 as shown in Fig. 2. On the return stroke of the carriage the lever 61 is moved so that the left-hand arm restores all the selectors to normal position and the right-hand arm is lifted clear of the selectors. A slide 38 is now raised, lifting the undisplaced selectors 35 which in turn lift corresponding controlling elements 10 out of engagement with connecting members 20, so that, when the slide 14 and the elements 10 are moved, only selected of the members 20 are moved with their corresponding heddles 33. On the return of the slide 14, all the elements 10 are returned to normal position by a weight 27. The parts 10, 20 may have a pulling or a pushing connection, the selectors 35 may lift the elements 10 or the members 20, and the members 20 may be connected directly to the heddles 33 as shown or to a series of hooks connected to the heddles and adapted to be lifted by griffe bars.
Patent GB-706169-A (GB)
Title: Improvements in or relating to the mounting of piezo-electric crystals
Inventor: STROUD LYNDON HOLWILL
IPC: H03H9/05
Filed: 1952-12-09
Abstract: 706,169. Piezo-electric crystals. STANDARD TELEPHONES & CABLES, Ltd. Dec. 9, 1952, No. 31172/52. Class 40 (8) In an assembly in which the crystal 1 is mounted on metal rods 6 and 7 supported and spaced by insulating discs 8 and 9, the connections 4 and 5 to the crystal are terminated near one end of the rods, and the insulating discs are mounted between the crystal and its terminations and the other end of the rods. The whole assembly is enclosed in a sealed envelope.
Patent GB-391880-A (GB)
Title: Improvements in or relating to constant frequency periodic devices for use in connection with electrical high frequency oscillators, radio transmitters and the like
IPC: H03H9/24
Filed: 1931-11-11
Abstract: 391,880. Knife-edge bearings. MARCONIS WIRELESS TELEGRAPH CO., Ltd., Marconi House, Strand, London, SMITH, S. B., Gordonville, Roxwell Road, Chelmsford, Essex, and TWEED, C. J. F., 42, Homepark Road, Wimbledon Park, London. Nov. 11, 1931, No. 31256. [Class 12 (i).] A constant frequency generator comprises a rod 1, supported at a nodal point by a knife-edge 2, embracing the rod. Preferably the knife-edge 2 is supported by a second embracing knife-edge 3. The knife-edges may be formed in the manner of plummer-blocks and preferably support the rod at its centre.
Patent GB-154580-A (GB)
Title: Improvements in petrol and other filtering apparatus
IPC: B01D35/00
Filed: 1920-11-04
Abstract: 154,580. Morel, F., and Tuloup, L. Nov. 21, 1919, [Convention date]. Void [Published under Sect. 91 of the Act]. Filters and strainers having sheet filtering or straining materials. - A petrol or like fuel filter comprises a receptacle a with inlet tube b, an inverted bell e, with a filter or strainer f at its base enclosing the entrance of an outlet tube c, and a partition h, preferably in the form of a funnel, which prevents impurities from rising into contact with the filter.
Patent GB-981757-A (GB)
Title: Improvements in or relating to electric arc guns or tools
Inventor: WATTS HERBERT EDWARD GRAFTON
IPC: B23K28/02
Filed: 1961-08-31
Abstract: 981,757. Arc electrode holders. DOHM Ltd. Nov. 30, 1962 [Aug. 31, 1961], No. 31364/61. Heading H5H. An electric arc gun for manual use in brazing or welding includes a pair of arms each of which incorporates an electrode holder which holds an electrode at an angle to the axis of the arm, one of the arms being longitudinally displaceable to move its associated electrode between an operative and a " dead " position, and at least one of the arms being rotatable for the purpose of striking an arc between the electrodes. Electrodes 7 are held in sockets 6 at the ends of arms 4 and 5 which are mounted within an insulating tube 1. A slot 14 in the tube, in which pin 13 can slide, permits the retraction of rod 4 to an operative position in which the plug 12 seats in the supply socket 11 and the electrodes are aligned in the same plane, whereafter a part-circumferential slot 14a permits rotation of rod 4 to strike an arc between the electrode tips.
Patent GB-683255-A (GB)
Title: Improvements in or relating to resilient mountings
IPC: F16F9/48
Filed: 1950-12-28
Abstract: 683,255. Dashpots. BRITISH UNITED SHOE MACHINERY CO., Ltd., MAKOVSKI, S. A., and RIVINGTON, A. A. Sept. 7, 1951 [Dec. 28, 1950], No. 31448/50. Class 108 (iii). A resilient mounting for a machine comprises a base member 31 having a cylinder 33 in which is slidable a piston 53 having a fluid-flow passage 55, the lower bearing 39 of the piston-rod being closed at one end, there being a passage 61 for the escape of fluid trapped between the end of the rod and the closed end of the bearing. In the construction shown, the passage 61 is disposed in the piston-rod 41. Damping is provided by both passages 61 and 55. An L-shaped bracket 49 acts on the rod 41 through an adjustable screw 51 and is connected to one corner 47 of a shoe-making clicking-press. Liquid is replenished through a plug 65.
Patent GB-1211151-A (GB)
Title: A container combined with a coin dispenser
Inventor: MORGAN GRAHAM THOMAS
IPC: G07F9/10
Filed: 1968-07-02
Abstract: 1,211,151. Container combined with a coin dispenser. WRIGLEY CO. Ltd. 27 June, 1969 [2 July, 1968], No. 31496/68. Heading G4X. [Also in Division B8] An open top container 2 for chewing gum is combined with a spring operated coin dispenser 4, both being formed by polythene moulding. The dispenser has a slide 5 in which is mounted a spring loaded button 6 which presses coins against an abutment 8. The front of the dispenser is cut away near abutment 8 so that coins can be inserted into or removed from the front or side of the dispenser. The slide 5 has a tongue for frictionally engaging with the dispenser wall. Adhesive strips 11 hold the container and dispenser to a car dashboard.
Patent GB-230199-A (GB)
Title: Improvements in and relating to calculating apparatus
IPC: G06G1/04
Filed: 1923-12-15
Abstract: 230,199. Henning, F. W. Dec. 15, 1923. Slide-rules of cylindrical form are furnished with two cursors c, f which may be temporarily moved, in conjunction, by means of a celluloid or other tube g secured to one cursor f and passing freely over the other. By gripping the cursor c through the tube the two cursors mav be moved as one. In a modification, the tube is replaced by flexible bars of metal, and a protective transparent tube is interposed between the cursors and the cylinder a.
Patent GB-353793-A (GB)
Title: Improvements in and relating to clothes horses
IPC: D06F57/08
Filed: 1930-10-21
Abstract: 353,793. Garment racks. WARD, C. G., Budook Manor Road, Tring, Hertfordshire. Oct. 21, 1930. No. 31560. [Class 52 (v).] A clothes airing rack consists of a number of pivoted rods, which can be opened out fanwise, carried by a clamp which is provided with converging grooves &c. to receive the cross-bars of a clothes horse. In the construction shown a wooden plate a, carrying one fixed rod c and four pivoted rods b, is formed in its under side with converging grooves d and carries a clamping bar g. In a modification the plate a is replaced by a flanged metal plate.
Patent GB-843510-A (GB)
Title: Spark controlled measuring device
Inventor: VALE GEORGE HERBERT
IPC: G01B7/02
Filed: 1957-10-09
Abstract: 843,510. Determining physical dimensions. ROLLS-ROYCE Ltd. Nov. 12, 1958 [Oct. 9, 1957], No. 31616/57. Class 37. Measuring apparatus comprises a probe axially movable by a motor and means for applying a voltage between the probe and the tested member to produce a spark, variations in the spark resistance being used to control the motor so as to maintain the length of gap constant and means to indicate the position of the probe. Fig. 1 shows a body 12, the contours of which are being determined.' The probe 10 is carried by a member 11 movable by means of a lead screw 13, driven by a two phase induction motor 18 via a gear train. The position of the probe and hence the dimensions of the body 12 is indicated by fine and coarse pointers 25, 28. Fig. 2 (not shown) relates to another arrangement contained in a cylindrical casing, in which the motor is mounted vertically. The fine and coarse pointers are replaced by two revolution counters, used respectively to indicate upward and downward movement relative to a datum, shutters being provided to obscure the counter not in use. Fig. 7 shows a motor control circuit, in which the resistance of the spark gap 17 is measured in a bridge circuit fed from winding 57 of a transformer. The bridge unbalance voltage is amplified by a phase splitter 80c and the tuned push-pull amplifier 65, 66 before being fed to the motor 18. Stabilizing feedback is provided by an alternating current tacho-generator 29 the output of which is amplified by valve 80d. In Fig. 4, (not shown) a long-tailed pair type of phase splitter is used. Fig. 3 (not shown) relates to the use of a long-tailed pair type of power amplifier. An alternative probe construction is shown in Fig. 5. The lead screw 13b is journalled in ball races 88 and turns a spindle 81 threaded into a sleeve 81a slidable within the housing 83. Backlash is prevented by a nut 86 and spring 87. A terminal 93 makes sliding contact with a rod 94 which carries the voltage from winding 57 via a resistor 68 to the platinum ball 97 forming the end of the probe. Reference is made to the use of the invention in place of a micrometer or for measuring moving objects such as cams.
Patent GB-913164-A (GB)
Title: Improvements in knife cleaning devices for rotary tobacco cutting machines
IPC: A24B7/08
Filed: 1958-10-03
Abstract: 913,164. Tobacco cutters, cleaning. HARVEY, V. P., and MOLINS MACHINE CO. Ltd. Sept. 25, 1959 [Oct. 3, 1958] ,No. 31656/58. Class 5(1). The rotary knife blades 2 of a tobacco cutter sweeping across a mouthpiece 3 are cleaned by compressed air from two nozzles 4. and 6. The nozzles precede a grinding wheel 7 to prevent the wheel from getting clogged. The second nozzle 6 may have a projecting part 9 to scrape the blades. Specifications 430,125 and 588,129 are referred to.
Patent GB-651242-A (GB)
Title: Improvements in or relating to lock-gates for use with canal locks, docks and the like
IPC: E02B7/20
Filed: 1948-12-08
Abstract: 651,242. Lock-gates. FARRER, J. O. (Etablissements Neyrpic). Dec. 8, 1948, No. 31806. [Class 68 (ii)] An arcuate gate for a canal lock or dock, is pivoted on a substantially vertical axis and is provided at its bottom with a closed buoyancy chamber which is permanently submerged whereby the weight of the gate is substantially balanced and the manipulation of the gate between its open and closed positions is correspondingly facilitated. The gate is housed, in its open position, in a recess in the dock wall, and two opposed gates, one in each wall, may be arranged to meet at the centre vertical plane. The volume of the recess is, as shown, reduced by masonry 20 so that, when a coffer dam is placed over the entrance to the recess, the water may quickly be pumped out to enable repairs to the gate to be effected. The inner curved surface of the gate is stiffened by horizontal ribs 10, and the outer surface is protected by horizontal fenders 11. Upper and lower sets of radial arms 5 connect the gate to spherical swivels 6, 7 carried by the dock wall, the pressure on the swivels being relieved by rollers 12 which run on a track 13. A wooden beam 14 and packing 15 ensure a tight joint at the bottoms of the gates which are provided with packings at their vertical edges to make joints with one another and with ledges on the lock wall. When a gate is housed in its recess, the opening in the lock-wall may be blanked off with a coffer dam which is of the same shape as the opening and is mounted on a vertical hinge so that it may be housed inoperatively in a recess in the wall, or swung into position over the opening. Alternatively, the coffer dam may be made in two sections which are independently hinged, or a sliding coffer dam may be used. The coffer dam may be attached to the gate so that when the gate is housed in the recess, the coffer dam is in the operative position.
Patent GB-627869-A (GB)
Title: Improvements in resilient mountings
IPC: F16F1/36
Filed: 1946-10-26
Abstract: 627,869. Resilient mountings. DALLOW, A. E. Oct. 26, 1946, No. 31821. [Class 108 (iii)] In a resilient mounting comprising inner and outer rigid tubes between which a tubular block of rubberous material is compressed by end members, the block is recessed at the end or has associated rubber parts to form a recess, forming an abutment face at the bottom of the recess, against which bears an end pressuremember in the form of a plunger having a shoulder which bears against the end of the rubber block or parts on the end of the block. In the construction shown in Fig. 1 a rubber sleeve 5 is compressed between an outer tube 1 and an inner rod 2 by the flange 3a of an end cap 3 rigid with the rod 2 and the flange 6a of a cap 6 secured in position on the rod 2 by a pin 7. The flanges 3a, 6a are insulated from the tube 2 by rubber rings 4, 4a and rubber washers 8. A flexible electrical connection may be provided between the tube 1 and rod 2. In an alternative construction, Fig. 10 (not shown), the rubber sleeve 5 is formed in two sections, the outer end of each section having the respective ring 4 and washer 8 formed integrally. In the construction shown in Fig. 15, the outer rigid member consists of two tubular portions 25, 26 secured by flanged end walls to a supporting member 29. Two rubber blocks 30, 31 are placed under compression by members 32, 33 displaceable axially on a bolt 34 by an adjusting nut. The degree of compression is limited by a shoulder 35.
Patent GB-987976-A (GB)
Title: Improvements in and relating to strip-perforating means
Inventor: CRAXTON ROBERT TREVOR
IPC: B65H23/188
Filed: 1960-09-16
Abstract: 987,976. Automatic control of registration. ASSOCIATED ELECTRICAL INDUSTRIES Ltd. Sept. 18,1961 [Sept. 16, 1960], No. 31957/60. Heading G3R. In a control arrangement for positioning strips moving longitudinally a device driven by a shaft perforates the strips in positions related to masked points on the strips and a device, responsive to signals from pick-ups sensing the perforations and marks, derives an error signal, representing the deviation of the distance between a perforation and a mark from a predetermined valve, which is used to control the drive to the shaft. As shown, perforations in a web 1 are detected by a photo-electric pick-up 26 and a registration mark 25 is detected by a pick-up 27 displaced in the direction of retrip movement A. The differentiated output from the pick-ups control an electronic switch 12 to determine the time for which an integrator 15 integrates the direct voltage output of a tachogenerator 11 coupled to the movement of the strip 1. An electronic switch 16 is triggered by the differentiated output of pick-up 27 so as to pass the output signal from the integrator which is a measure of distance between mark 25 and perforation 28, to a comparator 17 supplied with a reference voltage at terminals 20, 21, from a source, not shown. The resultant signal representative of the variation in registration, is applied through a known system to a differential gear, not shown, in the drive to a perforator, not shown. The integrator 15 is reset through a time delay device 19 from the differentiated output of pick-up 27, or, when the switch 12 is controlled by positive pulses produced by differentiating the pick-up outputs, the integrator 15 is reset by a negative pulse occurring when the trailing edge of the register mark 25 passes the device 27; the delay unit being dispensed with. The tachogenerator 11 can be replaced by a pulse generator coupled to the strip. Specification 914,819 is referred to.
Patent GB-1521157-A (GB)
Title: Fixing device for an electrophotographic copying machine
IPC: G03G15/20
Filed: 1976-07-30
Abstract: 1521157 Heat fixing device for copying machines KONISHIROKU PHOTO INDUSTRY CO Ltd 30 July 1976 [30 July 1975] 31963/76 Heading B6C In the device, which is of the kind having a heating element 3 for fixing copy sheets of one width, and at least one heating element 3a supplementing element 3 when fixing copy sheets of greater width, the elements 3, 3a are independently controlled by temperature sensing elements 4, 5 respectively.
Patent GB-1016049-A (GB)
Title: A process for the liquefaction of a gas
IPC: F25J1/02
Filed: 1964-08-06
Abstract: 1,016,049. Gas liquefaction process. LUMMUS CO. Aug. 6, 1964 [April 10, 1964], No. 32012/64. Heading F4P. Liquefaction of a gas, e.g. natural methane, is effected by compressing at 13 feed gas from a pressure of 40 atmospheres to at least 1À3 times its critical pressure, cooling by indirect heat exchange at 19, 20, 21 with an expanded refrigerant, e.g. liquid ethane and sequentially expanding the so-cooled feed gas at valves 29, 33, 37 into flash drums 30, 34, 38 from which latter drum liquid methane is withdrawn at atmospheric pressure and forced by a pump 41 into a tank 43. In operation the compressed feed gas is precooled in an ethane-cooled exchanger 18, freed of condensed liquid in a separator 23 and driers 26, 27 after which a major portion is cooled in exchangers 19, 20, 21 whilst the remainder is cooled in an exchanger 63 traversed by a portion of cold flash gas from drum 30 and the two portions are thereafter combined before expansion at valve 29. Flash vapour from drums 30, 34, 38 and vapour from tank 43 is fed to a compressor 46 which delivers into the feed line 12. The liquid ethane refrigerant stored in a vessel 76 is expanded into exchangers 18 . . . 21 arranged in parallel and the resulting ethane vapour is compressed and liquefied at 72 and returned through a cooler 74 and a line 75 to vessel 76.
Patent GB-1279433-A (GB)
Title: Aerodynamic vehicles including apparatus for reducing sonic booms
Inventor: ALPERIN MORTON
IPC: G10K11/16
Filed: 1969-06-25
Abstract: 1279433 Apparatus for reducing sonic boom M ALPERIN 25 June 1969 [28 June 1968 23 Sept 1968] 32018/69 Heading B7W The object of the invention is to reduce sonic boom heard at ground level. When an aircraft is travelling at supersonic speeds, the wing AB, shown diagrammatically in Fig. 3, produces a shock (compression) wave AC and an expansion wave BC, the shock wave being reduced in intensity at altitudes lower than C by interaction with the expansion wave. The distance Y* between wing and interaction of waves can be reduced by reducing the distance AB by (a) introducing a secondary airfoil MN, Fig. 5, which produces an expansion wave at its leading edge or (b) introducing a plurality of airfoils 1, 2, 3, 4, Fig. 8, which each produce a shock wave and an expansion wave to counteract it. The expansion wave is produced at the leading edge of the secondary airfoil rather than the compression wave generated by the leading edge of the primary airfoil because of the different angles of incidence of the airfoils causing expansion or compression of air passing beneath the respective airfoils. The smaller the distance Y*, the smaller tha intensity of the shock wave heard at ground level. The embodiments of the invention provide for an auxiliary surface MN non-parallel with and beneath a primary airfoil AB or a series of auxiliary airfoils shown in Fig. 8 beneath the primary airfoil, or a single wing comprising a lower surface of substantially the same lower profile as that of the auxiliary surfaces (Fig. 8) or a number of such surfaces, separate but effectively forming one primary wing.