baber/WOPTO huggingface dataset:
Patent GB-1481043-A (GB)
Title: Non-pulsing pumping apparatus
IPC: F04B23/06
Filed: 1974-06-10
Abstract: 1481043 Reciprocating pumps PATERSON CANDY INTERNATIONAL Ltd 23 May 1975 [10 June 1974] 25732/74 Heading F1A A pump for providing a pulseless suction or delivery, or both, with adjustable output comprises two or more ram or diaphragm pumping units connected to a common inlet and outlet Fig. 1 (not shown) and with their pumping members 10, 11 reciprocated by a cam acting via cam followers 16, 17 pivotably mounted at 18', 19' on a member 20' which is angularly adjustable to alter the pump stroke. At zero stroke setting pivot points 18', 19 are substantially coaxial with follower centres 112', 113' of members 10', 11' to ensure constant aggregate pumping over the whole stroke range. The drive mechanism is enclosed by a sealed housing containing lubricant. The two-unit pump shown has a cam having four sectors providing constant acceleration, constant deceleration or constant velocity, and is arranged so that as one unit is decelerating the other is accelerating, thereby providing constant delivery, Fig. 2 (not shown). For a three-unit pump, the cam has six equal sectors providing constant acceleration, constant deceleration or constant velocity, Fig. 4 (not shown). To ensure complete emptying of the pumping chambers irrespective of stroke setting, the arrangement is such that cam follower arms 16', 17 lie on a circle (100), Fig 1 (not shown), at their outermost movement by the cam (13). As shown member 20' is angularly adjusted by a pin and slot mechanism 22, 23 operated by a rod 25 moving parallel with the pump cams axis. In Fig. 6 (not shown), a plurality of pumps are driven by a common shaft.
Patent GB-993312-A (GB)
Title: Improvements in or relating to the reproduction of continuous tone pictures
Inventor: ERNST MARC HENRI MARIE JOSEPH
IPC: H04N3/32
Filed: 1961-07-17
Abstract: 993,312. Copying by scanning; television. LES PETITS FILS DE LEONARD DANEL. July 17, 1961, No. 25845/61. Drawings to Specification. Heading H4F. An apparatus for the reproduction of a continuous tone picture by means of juxtaposed dots of variable spacing and/or size comprises means for scanning the picture to be reproduced for deriving therefrom scanning synchronizing signals and a picture signal the magnitude of which is a function of the tone of the picture, an electric pulse generator and means for modulating the recurrence frequency and/or amplitude of the pulses in accordance with the picture signal, and a cathode-ray tube having beam deflecting means to which the synchronizing signals are transmitted and beam intensity control and beam focus control electrodes to which the pulses are respectively applied when they are respectively modulated in frequency and amplitude and to both of which the pulses are applied when they are simultaneously modulated in frequency and amplitude, the pulses always being sufficiently low in frequency for separate light dots to be displayed on the cathode-ray tube screen. The apparatus is applicable to television and the production of a screen printing block by photographing the cathode-ray tube screen. The original picture may be scanned by a television camera or by a photo-electric system which may include colour selective filters and photoelectric cells connected to introduce colours corrections where colour reproduction is intended. Correction circuits may be utilized to modify picture contrast and the law relating dot spacing and picture signal amplitude. The electric pulse generator may comprise a multivibrator or a blocking oscillator of which a suitable circuit is described with reference to Fig. 5 (not shown). Specifications 468,864, 471,481, 484,994, 643,330, 656,235, 722,146 and 726.846 are referred to.
Patent GB-279422-A (GB)
Title: Improvements in railway vehicles
IPC: B61F5/38
Filed: 1927-09-30
Abstract: 279,422. Kaufmann, W., (Assignee of Liechty, H.). Oct. 20, 19213, [Convention date]. Addition to 278,011. Bogies.-In a railway vehicle having two single-axle bogies as claimed in the parent Specification and in which the draw-bar f is pivoted at e to the main frame and slidably connected at g to the bogie frame, the movement of the vehicle body in passing round a curved track is such that the centre line of the vehicle always forms a tangent to the centre line of the rail curve. In Fig. 1, k is the centre of the vehicle body, and b the pivot of the bogie frame c. The points b, e are so arranged that the distance b-e equals b-k and e-l equals e-k, and, in the normal position of the bogie, b-e equals e-g. In the displaced position of the bogie the centre line of the vehicle body b, b is tangential to the centre line i of the rail curve. A fixed axle passing through the point k may be used.
Patent GB-1311157-A (GB)
Title: Checking yarn twist
IPC: G01N33/36
Filed: 1970-05-29
Abstract: 1311157 Checking yarn twist UNITIKA Ltd and FUJIKEIKI KK 29 May 1970 [3 June 1969] 25950/70 Heading DIF A device for checking whether a running yarn Y is twisted at a predetermined number of turns per minute comprises a variable speed motor 3 which can be set at a speed corresponding to said predetermined number of turns per minute, a drive shaft 2 driven by the motor 3, a yarn contact means, e.g. disk 4, which is freely rotatable on the shaft 2, and marks 6, 7 on the yarn contact means and the drive shaft for stroboscopically indicating any discrepancy in speed of rotation. The mark 6 is preferably located on a disk 1 attached to the shaft 2. In operation, a yarn Y which is being false twisted by passage through a heater 8 and a moving friction member 9 is taken as a control yarn and the speed of rotation of the motor 3 is set to correspond to this control. This is achieved by contacting the running yarn Y with the contact disk 4; because the disk is freely rotatable on the shaft 2 by means of ball bearings 5, the disk 4 rotates at a speed corresponding to the number of turns per minute in the yarn. The motor 3 is set running and its speed is increased until stroboscopically there is no discrepancy between the speed of rotation of the disk 1 and the disk 4. The motor 3 is set at this speed. The device is then used to check other yarns being false-twisted and in the event of a discrepancy in speed being indicated, the process conditions are varied until the discrepancy disappears and thus the checked yarn has the required number of turns per minute. The yarn contact means can alternatively be in the form of a belt passing round pulleys. Various alternative methods of mounting the yarn contact means for free rotation on the shaft 2 are described.
Patent GB-752989-A (GB)
Title: Improvements in temperature responsive controls for electric discharge devices
IPC: H01J19/36
Filed: 1954-09-08
Abstract: 752,989. Automatic temperature-control systems. GENERAL ELECTRIC CO. Sept. 8, 1954 [Sept. 15, 1953], No. 26039/54. Class 38 (4). [Also in Group XXXVII] To control the temperature of an ignitron 1, Fig. 1, a bowed member 11, attached at its ends to the ignitron envelope 3, carries two adjustably mounted snapaction switches 12. Member 11 has a coefficient of expansion which is less than that of the envelope and change of bow with temperature causes each of the operating members of the switches to engage the envelope at a different predetermined temperature. One switch serves to start the circulation of coolant through conduits 9 and 10 and jacket 4 to prevent rise of temperature above a predetermined temperature. The other switch disconnects the ignitron or operates an alarm if for any reason a higher predetermined temperature is reached. An alternative arrangement in which the switches are mounted on the envelope and actuated by the bowed member is referred to. Holes (not shown) in member 11 facilitate bowing.
Patent GB-301724-A (GB)
Title: Improvements in apparatus for reproducing mechanical movements by electrical means
IPC: G01R1/30
Filed: 1928-09-11
Abstract: 301,724. Paul, M., and Wangemann, P. Dec. 3, 1927, [Convention date]. Tell-tale apparatus. -Apparatus for reproducing mechanical movements comprises a constantcurrent resistance in series with a slider which proportions the current across a further resistance, the whole of which is always in circuit, one side of the further resistance including the current coil of an indicating, recording, or integrating instrument. In one arrangement, Fig. 1, an iron-hydrogen resistance R<1> is. connected in series from the main H with a constant resistance R<2>, which is tapped on to an invariable resistance W. The ends A, B of the resistance W are connected to the point E which is joined to the other main H<1>. The instrument C, having a resistance VV<1>, is located in the branch A, E. In a modification, the instrument may have a voltage coil which is connected across the resistance R<2>. The variable resistance W is preferably of the wound drum type with sliding contact, or if the drum is rotated the current indicated or measured is proportional to the angular movement of the drum.
Patent GB-1311647-A (GB)
Title: Method and apparatus for the production of longitudinally welded  tubular structures
IPC: B29C65/20
Filed: 1971-04-19
Abstract: 1311647 Seaming sheet material KABELUND METALLWERKE GUTEHOFFNUNGSHUTTE AG 19 April 1971 [2 April 1970] 26103/71 Heading B5K [Also in Division F2] A film 1 of synthetic resin material is drawn from a supply reel (not shown) and is then passed through an entrance piece (not shown) which bends it about its longitudinal axis to form a skelped tube with overlapped edges. The tube passes through a guide tube 2 of non- magnetizable material and is drawn off by means (not shown) beyond the guide tube. The overlapped edges are passed beneath a tension roller 9, one edge then passing over a heated wedge 10 and the other edge passing beneath the wedge. A toothed wheel 11 presses the heated edges together to weld the seam and the tube passes through guide tube 2. A support 5 of magnetizable material (e.g. steel) is pivoted upstream of the welding station and provides a base which bears against the wheels 9, 11; the wedge 10; and the inner periphery of the guide tube 2. Magnets 6 provide the force which urges the moveable support 5. A pressure pad (e.g. of felt or P.T.F.E.) presses the upper edge against wedge 10. A plurality of heated wedges 10 may be used, in which case they are preferably independently heated. If an insulated pipe is required a metal pipe may be fed into the film of synthetic resin material and a foamable plastics material introduced between the concentric tubes. The foamable plastics material should preferably be formulated to foam after the weld seam has cooled sufficiently to be no longer plastic. Suitably the plastics film may be P.V.C. and the guide tube 2 may be of copper.
Patent GB-972757-A (GB)
Title: Improvements in or relating to time-base circuits employing transistors
Inventor: ATTWOOD BRIAN ERNEST
IPC: H03K3/35
Filed: 1963-07-02
Abstract: 972,757. Semi-conductor oscillating circuits. MULLARD Ltd. July 2, 1963, No. 26184/63. Addition to 935,722. Heading H3T. [Also in Division H1] The time base circuit of the parent Specification is modified by the use, as the oscillator, of a PNPN device having an end layer (anode or cathode) split into two sections with separate terminals. At the start of operation, capacitor C1 charges until the cathode-anode P1 path of device S breaks down. Capacitors C12, C13 also charge until device S breaks down, at which point they discharge through cathodeanode P2 path. The cycle recommences when the sum of the two anode currents drops below the holding current of device S. Resistor R1A controls the rate of discharge of C1 and may be anywhere in the discharge path of C1 through S. In order that the height control R13 setting should not influence the frequency it is ensured that the current through anode P2 is reduced to zero before the end of the fly-back period by the feedback through winding Lf. The circuit may be synchronized by applying pulses to gate P. If a split cathode device is used, transistor T is replaced by a PNP transistor. If a Gate Turn-off switch is used as device S the circuit may be modified by omitting feedback winding Lf and taking a connection from the collector of transistor T to the gate P via a differentiating circuit.
Patent GB-722815-A (GB)
Title: Method of treating liquids
IPC: C12H1/16
Filed: 1951-11-09
Abstract: Potable liquids which are matured in contact with wooden material, have the maturing accelerated by an electric current passed through the liquid whilst in contact with finely divided wooden material and catalytically active carbon or other catalyst having a large absorbing surface.  Specified liquids are whisky and vinegar.  The liquid may be contacted first with the wood and then the catalyst or both simultaneously.  The wood and/or catalyst may be suspended in the liquid or the latter may pass through separated layers wood and catalyst.  The wood e.g. oak may be toasted (for flavour) or roasted (in which case it provides the catalyst also).  The current may be H.F. which can be pulsed, or a D.C. reversed at intervals.
Patent GB-1024363-A (GB)
Title: Stable latex and method of making same
Inventor: LEFEVRE WALTER JOSEPH
IPC: C08F2/22
Filed: 1963-07-03
Abstract: Stable, non-foaming, synthetic polymer latices are prepared by copolymerizing in a non-alkaline, aqueous medium a mixture of monomers containing a major proportion of one or more water-insoluble ethylenically unsaturated liquid monomers and a minor proportion of one or more water-soluble acid addition salts of monohydric amino-alcohol esters of a -methylene monocarboxylic acids.  Preferred liquid monomers are styrene, 1,3-butadiene, vinylidene chloride or mixtures thereof; many others are also listed.  The salt monomer may be one corresponding to the formula <FORM:1024363/C3/1> where R represents hydrogen, a halogen, e.g. chlorine or bromine, or an organic radical such as alkyl, cyclohexyl, phenyl or furyl, Q represents an alkylene radical, R1 and R11 each represent hydrogen, hydrocarbon radicals or substituted hydrocarbon radicals including the case where the group -NR1R11 constitutes a heterocyclic radical, and HA represents a salt-forming acid, e.g. hydrochloric, hydrobromic, sulphuric or toluene-sulphonic acid. Suitable catalysts for the copolymerization include hydrogen peroxide and potassium persulphate, which may be activated by a water-soluble reducing agent; most preferred is the system hydrogen peroxide/ferric ions in an aqueous medium having a pH not greater than 3.  Acids, salts or buffer systems may be added to provide a suitable pH value. Polymerization may also be promoted by activating radiation. The reactants may be added all at once or stepwise and/or the polymerization may be carried out in a plurality of stages. The examples illustrate the preparation of latices of the following copolymers:  (1) styrene / 2 - aminoethyl / acrylate hydrochloride; (2) vinylidene chloride/2-aminoethyl acrylate hydrochloride; (3) styrene/2-aminoethyl methacrylate hydrochloride; (4) methyl methacrylate / n - butyl acrylate / 2 - aminoethyl/methacrylate hydrochloride; (5) styrene/2-ethylaminoethyl methacrylate hydrochloride; (6) styrene / butadiene / 2 - aminoethyl methacrylate hydrochloride and styrene/butadiene/2 - dimethylaminoethyl methacrylate hydrochloride; (7) styrene / n - butyl acrylate / 2-aminoethyl / methacrylate hydrochloride.ALSO:Examples illustrate the preparation of hydrochloride salts of aminoalcohol esters of acrylic or methacrylic acid, wherein the appropriate aminoalcohol hydrochloride and acrylic acyl chloride are heated together until the evolution of HCl ceases.  Salts prepared are the hydrochlorides of 2-aminoethyl acrylate, 2-aminoethyl methacrylate and 2 - ethylaminoethyl methacrylate.
Patent GB-1153835-A (GB)
Title: Engine Performance Monitoring System
Inventor: EBERL ERICH
IPC: B64D45/00
Filed: 1967-06-07
Abstract: 1,153,835. Aircraft instruments. ENTWICKLUNGSRING SUD G.m.b.H. 7 june, 1967 [14 June, 1966], No. 26400/67. Heading B7W. [Also in Division G1] A device for indicating the performance of aircraft engines comprises several indicators 30, 40, 50, 60 arranged side-by-side in groups of three, each group including a scale band 31 for indicating a desired value of an engine parameter, an indicating band 32, 33 for indicating the actual value of the parameter and a monitoring band 10, the movement of which corresponds to the power setting of the engine, the monitoring bands having markers 11 at right angles to the bands so that the power setting of the engine can readily be compared with the indications given by the indicating bands in relation to the scale bands, the markers of the monitoring bands and indicating bands being arranged normally to lie in a straight line. Any deviation of the engine variables will thus be easily observable. The parameters could be engine thrust, revolutions per minute, exhaust gas temperature and fuel flow of the engines 112, 113. Movement of lever 70 to change the power setting of the engines moves bands 10 to the appropriate position and also through computer store 81 moves the scale bands 31, 41, 51, 61 to the desired value relative to marker 11. With the bands 10 and scale bands so set, the indicators register the true value of the engine variables.
Patent GB-1041087-A (GB)
Title: Substituted phenoxy acetamides
Inventor: SPENCER KENNETH ERIC
IPC: C07C233/00
Filed: 1964-06-25
Abstract: New compounds of formula <FORM:1041087/C2/1> where X is Br or I and R is H or CH3 are prepared by acylation (including amide exchange). Pharmaceutical compositions comprise the new antidepressant and antiinflammatory compounds with carriers, as for oral, parenteral or rectal administration.
Patent GB-800782-A (GB)
Title: Improvements in or relating to arrangements for detecting the presence of magnetisable or conductive bodies
Inventor: ELPHICK GEORGE STANLEY
IPC: G01V3/10
Filed: 1955-09-16
Abstract: 800,782. Locating conductors. RANK CINTEL, Ltd. Sept. 14, 1956 [Sept. 16, 1955], No. 26558/55. Class 37. A circuit which responds to the approach of a conductive or magnetic body comprises a thermionic valve having at least two grid signals of predetermined frequency being applied by way of a series capacitor to the grid next the cathode, and a resonant circuit connected between a subsequent grid and cathode the arrangement being that this circuit is brought nearer or removed further from resonance by the position of an object to be detected and the resulting change in anode current of the valve is used to produce the desired indication. In the arrangement of Fig. 1 an alternating signal is applied to the grid of valve 1. Condenser 3 and resistor 4 are so proportioned that the valve passes current only on the positive peaks of the input signal. The screen grid of the valve is connected to the cathode through resonant circuit 6 and through resistor 5 to the H.T. supply. When metallic object 9 approaches the resonant circuit 6 it becomes resonant at the input signal frequency and relay 8 in the anode circuit drops out. In the arrangement of Fig. 2, a Hartley oscillator in the triode section generates the input signal which is fed through the condenser 14 to the first grid of the heptode. The frequency of resonant circuit 18 is varied by a vibration pick-up 17 and changes of anode current developed across resistor 19 are fed to a recording or display arrangement such as a cathode-ray oscilloscope. In a further embodiment (Fig. 3, not shown), an octode is used, the first two grids being used in a Hartley oscillator while the resonant circuit is connected between the 4th grid and the cathode. The circuit is tuned to the injection frequency by the presence of a body near a capacitive pick-up. The invention may be used to detect metallic closures insulating containers.
Patent GB-191447-A (GB)
Title: Improvements in mops
IPC: A47L13/142
Filed: 1921-10-08
Abstract: 191,447. Kenner, D. Oct. 8, 1921. Barb, toothed, and like holding- devices.-In a mop-wringer the lower end of the handle is provided with a ferrule 14 to which the mop strands are secured by binding wire, the ferrule being provided with spurs 12 to prevent relative rotation of the mop during wringing.
Patent GB-845224-A (GB)
Title: Improvements in or relating to arc welding electrode
IPC: B23K35/04
Filed: 1957-08-23
Abstract: 845,224. Welding by fusion. SOUDURE ELECTRIQUE AUTOGENE SOC. ANON. PROCEDES ARCOS. Aug. 23, 1957 [Aug. 27, 1956], No. 26738/57. Class 83 (4). In a continuous electrode for car. bon dioxide shielded arc welding, a bare metallic outer shell 29 contains a core 15 of a granulated mixture including a deoxidizer and slagforming material, the core being 24-42% by weight of the metallic part of the electrode, and the outer shell 29 is provided with metallic fins 30 extending inwardly and of total weight greater than the outer shell. The fins 30 are shaped as shown and may be integral with or welded to the outer shell 29. The aggregate length of the fins 30 is greater than half the periphery of the outer shell 29. Specification 827,833 is referred to.
Patent GB-224561-A (GB)
Title: Improvements in automobile and like radiators
IPC: F28D1/053
Filed: 1924-11-10
Abstract: 224,561. Lava, M. Nov. 10, 1923, [Convention date]. Plates, securing pipes to.-Detachable cooling- elements of a motor-car radiator have sleeves 2<1>, 3', Fig. 1, slidably engaging holes in the plates of the main headers 2, 3, the sleeves being surrounded by compressible packing 2", 3<11>. The upper sleeve is provided with an external screw thread 4 carrying a nut 5, which compresses the upper packing and thereby also forces the lower sleeve downwards. The nuts have notches 11 and are locked after adjustment by a member 9 secured to a fixed boss 7 and having one or more lugs 10 engaging the notches in one or more of the nuts, as shown in Fig. 3. The Specification as open to inspection under Sect. 91 (3) (a) comprises also the following:-An alternative form of joint comprises a spring 12, Fig. 4, (Cancelled) around the upper sleeve serving to compress the upper packing and to force the lower sleeve downwards. This subject-matter does not appear in the Specification as accepted.
Patent GB-1299255-A (GB)
Title: Dry shaving apparatus
Inventor: LONER ALDO
IPC: B26B19/38
Filed: 1970-06-03
Abstract: 1299255 Dry shaver PHILIPS GLOEILAMPENFABRIEKEN NV 3 June 1970 [10 June 1969] 26856/70 Heading B4B A dry shaver has a shaver part 1 Fig. 1 with an upper cutter 48 and lower cutter 50, a long hair cutting part with an upper cutter 7 and lower cutter 9, a motor, a drive output member 47 leading from the motor, an operating element 22, and a coupling piece 12 displaceable by the element 22 into either of two working positions in each of which it couples just one of the lower cutters 50, 9 to the member 47. In one embodiment Fig. 1 the drive output member is an oscillated lever 47 having the coupling piece 12 pivoted to its end the operating element 22 engages a projection 57 on the piece 12 to move it between positions in which a forked portion 63 thereof engages a drive pin 49 on the lower reciprocating cutter 50 of the shaver part, or a drive pin 51 on the lower cutter 9 of the long hair cutting part. In a further embodiment Fig. 4 the shaver comprises a shaver part 50 and two long hair cutting parts 2, 2<SP>1</SP>, all the parts having reciprocatable lower cutters. The drive output member 47 is oscillated and carries a coupling piece 12 at one end. The operating element is a slidable cam plate which moves a spring loaded rack 69 engaged with a toothed portion 65 of the coupling piece so that the latter is movable to any of five positions in which it drives the lower cutter of the shaver part and/or one of the lower cutters of the long hair cutting parts.