baber/WOPTO huggingface dataset:
Patent GB-1427533-A (GB)
Title: Method and a device for controlling the positional adjustment of tool-forming electrodes for electroeroding conducting work pieces
IPC: B23H7/18
Filed: 1973-05-07
Abstract: 1427533 Automatic control of electroerosion ATELIERS DES CHARMILLES SA 7 May 1973 [17 May 1972] 21613/73 Heading G3R A workpiece is electro-eroded by the application of controlled voltage pulses which produce erosive discharges after a variable time delay. The delay times are measured and used to produce a control signal for adjusting the separation between the electrode and workpiece. As shown, voltage pulses are supplied to a gap 1 between an electrode 21 and workpiece 20 by a source 23 in series with a switching transistor T 1 . The pulse duration and interval times are determined by flip-flops 25, 26 and a trigger circuit 24 responsive to the start of working current flow as sensed by a resistor R 1 . The time delay before current flow begins is measured by a differential amplifier 30 which compares the voltage of electrode 21 with a reference level set by resistors R 2  R 3  and lying between the voltage of source 23 and the electrode voltage during current flow intervals. The amplifier output is fed to an integrator 31 over a switch S 3  which is closed when transistor T 1  is conductive and which allows a capacitor C 1  to discharge through a resistor R 5 . The integrator output forms an analogue signal which controls movement of the electrode 21 through a servomechanism 22. The input for integrator 31 may alternatively be derived through switch S2 from an AND gate 36, receiving one input from the flip-flop 26 and another from trigger circuit 24. In another embodiment, Fig. 4 (not shown), counting circuits are used to measure the proportion of pulses for which the delay time exceeds a pre-set value. Upper and lower count limits may be set, and separate logic elements used to drive the mechanism 22 in the approporiate direction.
Patent GB-473641-A (GB)
Title: Improvements in solutions for permanently waving hair
IPC: A61Q5/04
Filed: 1936-08-06
Abstract: 473,641. Hair - waving. STROHER AKT.-GES., F. Aug. 6, 1936, No. 21692. Convention date, April 7. [Class 131] Solutions for use in permanent waving comprise addition products of aldehydes and ketones with bisulphites, hydrosulphites &c. Examples given are (a) a combination of sodium bisulphite and formaldehyde, (b) sodium bisulphite acetone and (c) sodium formaldehydesulphoxylate.
Patent GB-1357307-A (GB)
Title: Friction wheel lighter
IPC: F23Q2/46
Filed: 1972-05-10
Abstract: 1357307 Cigarette &c lighters ROWENTAWERKE GmbH 10 May 1972 [12 May 1971] 21698/72 Heading F4F A cigarette lighter of the friction wheel ignition type comprises a fuel container 1, Fig. 2, a fuel outlet 3, a friction wheel 6 arranged to co-operate with a flint 4, an operating knob 8, and means for transmitting the operating force from the knob 8 to the wheel 6, the container 1 being integral with a housing having two side walls 2b, Fig. 3, provided internally with grooves 20 and the knob being provided with transverse bores 17 each containing a spring 19 arranged to press balls 18 at its ends into the said grooves. Movement of the knob 8 is initially resisted by the frictional forces between the balls 18 and oblique sections of the grooves on which the balls rest and between the flint and the wheel and when the former force is overcome the balls are pressed almost entirely into the bores 17 causing the wheel 6 to be accelerated and a vigorous spark to be produced. Movement of the knob is guided by a ring 10 entering a depression 11 and a tubular part 22 entering a cavity 21 and is restricted by pins (24), Fig. 1 (not shown) engaging slots (25). The flint and the knob are engaged by compression springs 5 and 23 respectively. A hood 9 covers the operating mechanism. Two bolts (15) secured to a rotatable drive bracket 7 lie within fork-shaped slots 13 mounted on the knob and rotation of the member 7 is transmitted to the wheel 6 by known means, e.g. a spring drive.
Patent GB-692240-A (GB)
Title: Improvements in or relating to flash-light bulbs
IPC: H01M6/38
Filed: 1951-09-17
Abstract: 692,240. Flashlight bulbs. PHILIPS ELECTRICAL INDUSTRIES. Ltd. Sept. 17, 1951 [Sept. 20, 1950; Nov. 29, 1950], No. 21774/51. Class 9(ii) [Also in Group XXXVI] Flashlight bulb enclosing actinically reacting material ignitible by electricallyheated filaments accommodates preferably within the cap, a source of electrochemical energy capable of supplying sufficient energy to ignite the actinic material. In Fig. 1, the lamp has a cap 1 coated internally with a layer 2 of galvanic zinc 20Á thick separated by a layer 3 of cellulose from oxidized. lead foil 4, the zinc layer 2 and the lead foil 4 forming two electrodes. The supply wires of the lamp filament are connected respectively to the electrode 4 and a movable stud 5, held by a sheer pin 5a and electrically insulated from the cap. On forcing the stud inwards a disc 6 carried by the stud smashes a tubular tank 8 containing an electrolyte. The tank 8 is held in position by a plug 7 closing the cell. On. smashing the tank, the electrolyte escapes and penetrates the perforated lead dioxide foil 4 and enters the space between the electrodes. The electrolyte tank may be an annular or a helically-wound glass tube. Brittle synthetic material may be used in place of glass. If ceramic material is used, the wall of the tube may be weakenedas by grinding where it faces outwardly, to obtain a directional discharge of the liquid. The liquid in the tank may be at a pressure above atmospheric, this pressure being brought about by introducing- a zinc pastille or zinc wire before sealing the tank. Ignition is brought about by connecting the stud 5 to the cap wall, e.g. by way of a synchronizing switch working in conjunction. with a camera shutter. In an alternative arrangement the electric cell is horizontal and insulated, from the cap wall, while an annular tank of electrolyte is placed above the electrode. This tank is smashed, as before, by a disc 6 carried by the stud 5. An inspection aperture 9 in the wall of the cap is covered by a transparent plate 10 which changes in colour on contact with the electrolyte.
Patent GB-702958-A (GB)
Title: Improvements in bicycle stands
IPC: E04H6/00
Filed: 1951-09-17
Abstract: 702,958. Cycle stands. ODONI & CO., Ltd:, A. A., ODONI, W. A. V., and ODONI, P. B. Sept. 17, 1952 [Sept. 17, 1951]. No. 21788/51. Class 136(1) [Also in Group X] A double-sided semi-vertical stand for cycles has a curved roof G in which the upper and lower frames B, A of the stand are supported by end frames C constituted by spaced upright struts D, D<SP>1</SP> extending between upper and lower cross members E. F the central uprights D<SP>1</SP> extending beyond the upper cross members E to provide a support for the middle portion of the curved roof G. Reinforcing struts H are provided between the uprights D and the members E. F. Struts J extend between plates K on the uprights D<SP>1</SP> and plates L secured on a central purlin of the upper frame B and between plates M on the uprights D<SP>1</SP> and plates N mounted on cross members O of the lower frame A. The cycle troughs S are secured to the longitudinal members of the frames A, B.
Patent GB-1466197-A (GB)
Title: Magnetic tape cassette recorders
IPC: G11B5/187
Filed: 1974-05-16
Abstract: 1466197 Cassette tape recorders; erase heads SONY CORP 16 May 1974 [21 May 1973] 21829/74 Heading G5R An erase head 15 having tape-guide flanges 22 is secured in a bearing member 23, which rotatably supports a pinch roller 14A and is pivotally mounted, e.g. by the pinch roller shaft 25 as shown, on a pivoted pinch lever 24. The recorder described is of the dual-capstan three-head type disclosed in Specification 1,355,151.
Patent GB-316438-A (GB)
Title: Apparatus for testing the centering of divided arcs of circles
IPC: G01C15/12
Filed: 1928-07-28
Abstract: 316,438. Heath, G. A., and Stanley & Co., Ltd., W. F. July 28, 1928. Sextants.-Apparatus for testing for centring error in sextants &c. which do not comprise a complete graduated circle consists of a series of prisms of known angles of divergence and adapted for attachment to the instrument so that the latter can be used to measure the angle through which light is diverted by any one of the prisms. In the form shown the prism A, extending over half the field of the telescope E of the instrument, is attached to the telescope by a clamp B so that the plane of a ray passing through the prism is parallel to the axis of collination of the telescope. The prism can be adjusted by a screw C so that the image of the object as seen through the prism can be brought into coincidence with the image seen through the uncovered portion of the object glass.
Patent GB-1470658-A (GB)
Title: Etching formulation for an inscribed lithographic printing blank
IPC: B41N3/08
Filed: 1974-06-26
Abstract: 1470658 Etching lithographic plates VICKERS Ltd 26 June 1974 [11 July 1973] 21943/76 Divided out of 1470657 Heading B6C A solution which improves the water-receptive qualities of an ink-repellent layer of a lithographic plate comprises 10 parts diethylene glycol, 10 parts ethyl lactate, 2 parts 88% phosphoric acid, 38 parts ethanol and 40 parts water.
Patent GB-189194-A (GB)
Title: Improvements in rotary valves specially applicable to internal combustion engines
IPC: F01L7/08
Filed: 1921-08-19
Abstract: 189,194. Holmes, V. W. Aug. 19, 1921. Rotary conical valves, specially applicable to internal-combustion engines, and in which the direction of the taper is such that the explosion pressures tend to lift the valves from their seats, are provided with means for resisting this tendency of the valve to lift, in combination with helical grooves for feeding lubricant along the valves. Fig. 1 shows valves A arranged in pairs in the cylinder head and with recesses J communicating by passages K with the cylinder, whereby the explosion pressure is used to hold the valves on their seats, lubricating-grooves M being provided as shown. The valves are further pressed on to their seats by springs G bearing on collars F, and have loose driving-connections by means of keys H with shafts C. Fig. 3 shows a single valve which is pressed on to its seat during the explosion periods by cams Q, R.
Patent GB-928902-A (GB)
Title: Improvements in or relating to electric motors
IPC: H01R39/06
Filed: 1961-06-19
Abstract: 928,902. Making commutators. A.G.M. INDUSTRIES Ltd., and A. R. MILLS. April 9, 1962 [June 19, 1961], No. 22089/61. Class 83 (2). A method of making a commutator comprises the steps of printing a metal film 11 on one face of a block of insulating material 12 in positions to form the required segments 17, with the film extending outwardly beyond the maximum radius of the segments, turning down the insulating material to form a disc of the required diameter leaving the film protruding beyond the periphery of the disc and bending the metal film over on to the edge of the disc. The insulating material is formed with a central hole 13 to be a push fit on an armature shaft. The disc initially has a radius greater than the finished radius by approximately the thickness of the disc. The parts of the film bent over the edges of the disc form tags 18 to which the armature coils are connected.
Patent GB-827072-A (GB)
Title: An improved knitted fabric with plush, pile, fleecy and fur-like effects, method of and means for producing the same
IPC: D04B23/08
Filed: 1955-08-02
Abstract: 827,072. Knitting. WEST INDIES TRADING CO. Ltd., and GRAU, H. W. H. Nov. 1, 1956 [Aug. 2, 1955], No. 22143/55. Class 74 (2). As one or more sets of threads 12, 13 is or are fed to a flat warp knitting-machine by thread guide bars 5, 6, a staple fibrous web 14 is fed by plates 19, 20 mounted, the one on arms 17 connected with hanging cheeks 18 which carry the thread guides and the other on the cheeks; and the web is engaged by elements 16 carried by the arms 17, which elements with the plates 19, 20, are moved in similar fashion to and synchronously with the thread guides, so that loops of the warp threads and of the web are interknitted. Thus is produced a fabric having a warp-knitted backing 1 and a facing of loops 4 of the web. Pile loops of the web may be sunk by a vertically reciprocated plate 32, the length of the stroke of which may be varied to vary the length of the pile loops. The machine may be provided with bearded needles, or, as shown, with latch needles 8 carried in a bar 7, holding down element 10 and a latch opener 11. The backing may be of warp chains 2 and laid in threads 3. The web may be of natural fibres of animal or vegetable origin, or of synthetic fibres of cellulosic origin, or nylon or other man-made fibres, or of mixtures thereof. The fibres may be self-coloured, or dyed to provide solid colours or variegated effects. Pattern effects may be produced by stitch variation, e.g. by thread guide manipulation. The fabric surface may be brushed or teaseled. The web may be supplied from a carding unit via a conveyer unit and over a beam.
Patent GB-1458956-A (GB)
Title: Thermoindicators comprising dinitrile compounds
IPC: G01K11/16
Filed: 1975-05-22
Abstract: 1458956 Temperature indicators LONZA Ltd 22 May 1975 [10 June 1974] 22204/75 Heading G1D A method of indicating a temperature change by the irreversible colour change of a compound of the Formula:-  wherein one of R 1  and R 2  is H and the other is alkyl, or both R 1  and R 2  are alkyl and R3, R4, R 5  and R 6  are H, halogen, CN, C 1 -C 4  alkyl or alkoxy, or both R 1  and R 2  are H and R 3 , R4, R 5  and R6 are halogen, CN, C 1 -C 4  alkyl or alkoxy. The above compounds may be employed in the form of a solution e.g. in acetone, tetrahydrofuran or other low-boiling point solvent, in solid form or applied to a substrate such as paper, porcelain or a synthetic resin.
Patent GB-1359241-A (GB)
Title: Differential pressure fluid flow meter
IPC: G01F1/44
Filed: 1972-05-11
Abstract: 1359241 Measuringfluid-flow GENERAL SIGNAL CORP 11 May 1972 [19 May 1971]  22208/72 Heading G1R A differential pressure fluid flowmeter includes a tube 11 of polygonal, preferably rectangular, cross-section which defines an inlet 16, a throat section 17 including a central pressure tap 22, and a converging section 18, the converging section comprising at least one pair of opposing converging walls 14, 15 each of which has a planar upstream portion 14a, 15a and a planar downstream portion 14b, 15b meeting along an edge 23, the throat section comprising opposing parallel walls which join the portions 14b, 15b along edges 24. The axial length of the section 18 being determined by the expression #A l  (0À67-0À2B) and the axial length of the downstream portions by 0À56B#A 1 , where A 1  is the cross-sectional area of the inlet, and B is the Beta ratio of the tube. Preferably the tube has an inlet section 16, including another pressure tap 21, and a diffuser section 19. The crosssectional area of the tube at the junction between the portions 14 and 15 is preferably 1À25B<SP>2</SP>A 1 .
Patent GB-1008047-A (GB)
Title: Improvements in tape recording and reading systems
IPC: G11B15/48
Filed: 1964-05-29
Abstract: 1,008,047. Monitoring tape recorders. INTERNATIONAL BUSINESS MACHINES CORPORATION. May 29, 1964 [June 27, 1963], No. 22281/64. Heading G5R. The acceleration and deceleration of tape in a tape recorder is monitored by recording a burst of pulses at one instant in the acceleration or deceleration period, reading the burst at a subsequent period, and comparing the duration of the read burst to develop an error signal if it is shorter than a standard time interval. Referring to Fig. 2, when the tape 10 is accelerated prior to writing the block T of digital information on four tracks, a block of pulses is recorded in track 2 by a write head 12 for a period A ending an interval Q before the start of block T. The periods A and Q may be timed by single shot multivibrators. The pulses are subsequently read by a read head 11 and if the reading time A<SP>1</SP> + Q<SP>1</SP> is less than A an output pulse is produced by a logic circuit (Fig. 1, not shown) as an indication of faulty acceleration. The period A may be timed during reading by the same multivibrator used to time the writing pulses. Similarly after an interval B after completion of writing of block S a block of pulses P is recorded and subsequently read. Faulty deceleration is indicated by an output pulse if B<SP>1</SP> is less than B+P, Fig. 8 (not shown). Specification 996,118 is referred to.
Patent GB-244415-A (GB)
Title: Brush-like device for applying liquid medicaments and the like to the skin
IPC: A61F13/40
Filed: 1925-09-07
Abstract: 244,415. Leuffen et Cie, Kommanditges., C. Dec. 15, 1924, [Convention date]. Fixing by self-grip sockets and tangs.- Swabs or brush substitutes for applying liquids to the skin consist of a pointed rod, of wood, celluloid, or bone, forming a handle to receive a tubular head of cotton wool encased in a cover of elastic fabric. The head is held in place by the elastic cover and is removed from the handle and destroyed after use. The handle a, Fig. 3, may be flat or round and is pointed at its end b. The head consists of a bundle of wicks c made from wadding or cotton wool, and is spun round with an elastic fabric cover d. Liquid is poured on the wicks c so that the swab does not enter the main supply of liquid. Modified shapes of handles are shown in Figs. 4 and 6.
Patent GB-1201201-A (GB)
Title: Improvements in the discharge of conditioned air into enclosures
Inventor: BLOOMER IVAN
IPC: F24F13/068
Filed: 1967-05-15
Abstract: 1,201,201. Ventilating buildings. CARRIER ENG. CO. Ltd. 20 March, 1968 [15 May, 1967], No. 22340/67. Heading F4V. A ventilating system for supplying heated or cooled air to a building comprises a duct 2 having a number of discharge spigots 1 and a diffuser plate 7 forming part of a false ceiling, the air flow from each spigot being controlled by a hit-and-miss valve 4, 5, directed vertically downwards by vanes 12 and a proportion of the air flow passing horizontally through a space 10 between the spigot and plate 7 before passing through the plate. The system also includes air flow straightening vanes 16 and 13, the latter being movable between positions 13a and 13b to vary the throw of air discharged vertically through the plate 7. The vanes 16, 12 and 13 may each be of a honeycomb formation. The valve 4, 5 is controlled manually or automatically.
Patent GB-1427831-A (GB)
Title: Cross-linked filamentary ion-exchange resins
IPC: C08F8/36
Filed: 1973-05-10
Abstract: 1427831 Fibrous ion-exchange resins and their production TEIJIN Ltd 10 May 1973 [10 May 1972] 22386/73 Heading C3P An ion-exchange, cross-linked, solvent resistant, filamentary polymer containing ion exchange groups may be produced by (a) reacting with chlorosulphonic acid, a filamentary polymer comprising at least 20 wt. per cent. of units derived from an aromatic monovinyl monomer which may have a substituent in the ring on a methyl group in the alpha position, to form a cross-linked filamentary polymer in which 2-40 per 100 of the aromatic units are cross-linked via an -SO 2 - group to give crosslinkages of the formula wherein each X, which may be the same or different represents one of the aromatic groups from the aromatic monomer(s) and each R<SP>1</SP>, which may be the same or different, is H or -CH 3 , and which polymer does not contain cross-linkages of formula wherein X<SP>1</SP> is H or X, and then (b) reacting said cross-linked filamentary polymer with an agent to introduce ion-exchange groups. Suitable ion-exchange groups are sulphonic acid groups and their alkali metal salts; or an alkali metal salt thereof in which R is C 1 -C 4  alkylene, or phenylene; -COOH or an alkali metal salt thereof wherein R<SP>1</SP>, R<SP>2</SP>, and R<SP>3</SP>, which may be the same (or different, is C 1 -C 4  alkyl, phenyl or beta hydroxyethyl wherein R<SP>4</SP> and R<SP>5</SP>, which may be the same or different, are H, C 1 -C 4  alkyl, phenyl, or beta hydroxyethyl wherein R<SP>6</SP> and R<SP>7</SP>, which may be the same or different, are H or CH 3  wherein n is an integer of 1-5; or wherein m is 1 or an integer of 3-6. Introduction of the exchange groups may be by the usual methods such as sulphonation, chlorosulphonation, and Friedel Crafts reactions such as chloromethylation followed by amination or carboxylation. In the examples, polystyrenes are treated. Copending Specification 1,427,832 is referred to.
Patent GB-1140128-A (GB)
Title: Improvements relating to hydraulic turbines and pump turbines
Inventor: HARTLAND DEREK
IPC: F03B15/18
Filed: 1966-05-20
Abstract: 1,140,128. Hydraulic turbines; engine stopgear. ENGLISH ELECTRIC CO. Ltd. May 11, 1967 [May 20, 1966], No. 22716/66. Headings F1K and FIT. In a hydraulic turbine or reversible pumpturbine having adjustable guide vanes programmed to close automatically so as to stop or substantially reduce the flow of water through the machine in the event of an abrupt cutting off of the load on the machine during use as a turbine, the vane closure programme comprises a first phase during which the vanes are moved relatively quickly towards their closed positions, but do not completely close, a second phase during which they are at least partially re-opened, and a third phase during which the vanes are moved relatively slowly towards their closed positions. This prevents severe oscillation of the water pressure in the penstock and in the hydraulic machine which would occur if the vanes were closed abruptly. In the first phase, the vanes may be turned through 75% - 85% of the total movement between the fully open and fully closed positions, and in the second phase they may be re-opened to approximately the half-way position (or may even be fully opened). The closure programme may be initiated in response to the cut in the current flow through the electric generator driven by the turbine (as by a solenoid controlled servo-mechanism) or in response to the resultant rise in turbine speed (sensed by a governor).
Patent GB-1432424-A (GB)
Title: Tup or hammer weight of a hammer
IPC: B21J13/06
Filed: 1973-05-12
Abstract: 1432424 Hammer tups SPECTSIAL KONSTRUKT BJURO GIDROIMPUL TEKH SIBIR OTDELENIA AKAD NAUK SSSR 12 May 1973 22731/73 Heading B3H A tup for a hammer for working by pressure, pile driving or rock-crushing, comprises a central rod 1 with an impact face 2 and a threaded shank on which a set of disc weights 3 and associated resilient lock nuts 6 are mounted. The lock nuts each have a peripheral flange which engages the associated disc weight 3 on its face remote from the impact face. There is a gap 7 between each lock nut and its disc weight which is larger than the axial play of the weight on the rod 1. The rod is made of steel and the discs are made of alloy steels which may be low grade remote from the impact face 2. The resilient lock nuts allow the disc weights to move to absorb shock waves on impact.
Patent GB-647189-A (GB)
Title: Improved tilting boiling pan
IPC: A47J27/17
Filed: 1948-08-30
Abstract: 647,189. Boiling-pans. EKMAN, L. G. Aug. 30, 1948, Nos. 22781 and 22782. Convention dates, Aug. 29, 1947 and May 12, 1948. [Class 64(i)] [Also in Group XVII] A steam-jackated boiling-pan 1 is supplied with steam through a pipe 9, a valve 11, and valves 13, 17 which are automatically closed on raising the pan about pivots 5, as by a hydraulic or pneumatic cylinder 8 &c. Condensate is withdrawn through the same pipe 9, or through a similar pipe 10 or alternatively steam may be generated at 19 and supplied through a pipe 20 &c. The arrangement is such that the supports and pipes for the pan do not project beyond the area covered by the pan. In an alternative arrangement, the pan is tilted by a piston rod the upper end of which is held by a pivoted link, the thrust being applied to the pan through a roller running in a guide.