baber/WOPTO huggingface dataset:
Patent GB-1374746-A (GB)
Title: Stacking sectioned stock in layers
IPC: B65G47/248
Filed: 1973-06-25
Abstract: 1374746 Packaging apparatus; stacking SCHLOEMANN AG 25 June 1973 [23 June 1972] 30086/73 Heading B8C In apparatus for stacking groups of sectioned bars 2 (Fig. 1), the bars proceed transversely to their length along conveyer 1 to separation means 3, 4, the separated bars then proceeding on conveyer 5 to pusher 13 via a selectively operable individual bar-inverting device 6, and thence to lifting table 16 by way of conveyer 14, the group of parallel bars so formed on table 16 being lifted by head 17 of magnetic conveyer 18 and transferred to form a layer of a stack of bars on table, or conveyer, 19. The separation means comprises two transverse stops 3, 4 (or 43, 44 in Fig. 2) which alternately rise and sink from the path of conveyer 1 at the same rate as the inventing device 6, their movement controlled by cams 91, 93 through doublearm lever 87 and linkage 89 (Fig. 3).  The inverting device 6 consists of two arms 7, 8 independently rotatable about axis 11, each arm having a bar-engaging hump 7b, 8b and recess 7c, 8c. In the Fig. 2 embodiment, the device comprises two discs 47, 48 rotatable in the same sense and having bar-engaging projections 47b, 48b. The inverted bars slide down shoot 52 on to alternately movable carriages 53, 62 on rails 54, 63. The carriages have bar-retaining strips 53a, 62a which are interchangeable to fit different bar sections. Pawls 59 with driving dogs 58a of a reversible drag chain 58 releasably engage and move the carriages. The carriages are disengaged by raising the rails 54 or 63. If the bars are not to be inverted, discs 47, 48 remain stationary, and double-arm rotary members 65 on shaft 66, with bar engaging recesses 70 in segments 65a transfer each bar to shoot 52. In Fig. 3, the inverting device comprises barengaging arms 81, 82 pivotally mounted on parallel discs 80 rotating on shaft 80a. Arms 81, 82 are movable from an inverting position to a non-inverting position. The magnetic conveyer 18 has a head 17 vertically movable by chain 21 and pulley 22 to engage bars raised from conveyer 14 by table 16 (Fig. 1), the conveyer moving laterally to table 19 by means of parallel linkages 29, 30. In Fig. 2, bars are transferred from carriages 53 or 62 by magnet arm 60 rotatable by drive shaft 60a. The bars are preferably stacked in alternately inverted layers.  Sensing means such as an electric eyer downstream of the separating means detects misplaced bars and actuates power unit 95 to raise stops 3, 4 or 43, 44 to act as fixed stops. Limit switches, sensors, or counters control the timing of the lifting table 16 and magnet arm 60.
Patent GB-919371-A (GB)
Title: Improvements in or relating to electrically-heated water containers
Inventor: SIMPSON ERIC
IPC: F24H9/18
Filed: 1960-09-01
Abstract: 919,371. Immersion heater mounting. RANGE BOILERS Ltd. July 12, 1961 [Sept. 1, 1960; Feb. 10, 1961], Nos. 30109/60 and 4972/61. Class 39 (3). [Also in Group XXV] In an arrangement for mounting an immersion heater in a socket 14 in the wall of a water container 10 which permits installation without complete rotation of the heater, a dished portion of the base-plate or carrier 16 of the heater is located in the socket and is held in position by a bolt 20 which extends through the carrier and engages a nut 21 held between upturned flanges 23 of an anchoring member 22 which bears against the inner edge of the socket. With a few threads of the bolt engaged by the nut the anchoring member is entered endwise through the socket with the heater and on tightening the nut is located against the inner edge of the socket by upturned tabs 25 which engage within the socket, leakage is prevented by a rubber gasket 26 and a copper asbestos washer 27 under the head of the bolt. In a second arrangement, Figs. 4 and 5 (not shown), the anchoring member comprises a flat ring formed in sections which engages beneath the socket flange 18 and the heater is secured by nuts which engage threaded studs extending upwardly from the anchoring member through the base-plate of the heater. The base-plate includes a downwardly-extending peripheral flange which holds the anchoring member against lip 13.
Patent GB-245913-A (GB)
Title: A new or improved device for supporting electric light or like shades
IPC: F21V17/06
Filed: 1924-12-16
Abstract: 245,913. Wilkins & Wright, Ltd., and Hewitt, J. H. Dec. 16, 1924. Mounting s h a d e s directly on rods or tubes. - A device for supporting a shade on an electric lamp socket or the like is formed from a single blank of resilient sheet metal and comprises a central ring- like portion 1 adapted to surround the lamp socket and two oppositely disposed and slightly downwardly diverging arms 2. The upper portions of each of the arms are provided with two rounded diverging fingers bent inwardly to engage with the thread or the lamp socket, whilst the lower portions are stiffened by outwardly pressed longitudinal ribs 3 and are bent outwardly at their extreme ends to form finger and thumb grips 6.
Patent GB-892432-A (GB)
Title: Motion measuring and/or controlling device
Inventor: WHITTINGTON ROBERT JOHN
IPC: G01N3/06
Filed: 1959-09-04
Abstract: 892,432. Photo-electric alignment control. WALLACE & CO. Ltd., H. W. Aug. 25, 1960 [Sept. 24, 1959], No. 30297/59. Class 40(7). [Also in Group XL(b)]  Tensile testing apparatus in which the stress in a specimen is recorded by a pen on a drum comprises. strain recording means which include two carriages each moved by an electric servo-motor in a direction parallel to that of elongation so as to maintain alignment between the carriage and one of a pair of marks on. the specimen, each carriage bearing two lights and a photo-sensitive device to illuminate opposite edges of the relevant mark and to receive light reflected therefrom, each photo-sensitive device having: associated discriminating means influenced by the device current to actuate the associated motor so as to maintain symmetrical illumination of the mark, said motors being connected by a differential gear to drive the drum. A carriage 11, Fig. 1, carries two lamps 13 which illuminate contiguous areas extending across a specimen such that their boundary lies on a mark 15, and a photo-cell 16 to detect charges of light reflected from the areas. The lamps b1 and b2, Fig. 2, are connected in different. halves of a multivibrator so that anti-phase currents are supplied to them which cause the two areas to undergo anti-phase changes of illumination whose intensity varies triangularly with time (due to thermal constants of lamps). In the event of misalignment between the mark and the carriage the light reflected on to the photo-cell (a photo-transistor X3) fluctuates so that it produces a triangular signal whose phase depends on the sense of misalignment. This misalignment signal, together with a reference phase signal from the multivibrator, is supplied to a phase sensitive detector X8 and X9, Fig. 5, which produces a voltage according to the sign and magnitude of the misalignment signal. This voltage is applied after amplification to the field windings of a shunt wound motor to move the carriage into alignment. Two such carriages and systems are used to determine continuously the extension between two marks on a specimen being stressed in tension and the difference between the movements is transmitted to rotate a drum on which the stress is being recorded. Alternatively the medium bearing the mark may be moved relatively to a stationary carriage, the servo-system may be dependent on a D.C. misalignment signal produced from absolute differences of the light reflected from the contiguous areas, the light may be chopped to give an A.C. misalignment signal, and the light may be modulated by a vibrating reed.
Patent GB-1493060-A (GB)
Title: Artists easel
IPC: A47B97/04
Filed: 1976-06-30
Abstract: 1493060 Easels HSTANDING 30 June 1976 [18 July 1975] 30317/75 Heading A4H An artist's easel comprises a front rectangular frame having top and bottom rails 1, 2 and side rails 3, an intermediate transverse rail 4 slidable on the frame, rails 4 and 2 having opposed recesses 5 to support a picture &c., a tension spring 6 connected between rails 4 and 2, and a rear leg frame 7 pivoted at 8 to the front frame.
Patent GB-1510324-A (GB)
Title: Bulk semiconductor logic device
IPC: H01L47/02
Filed: 1975-07-21
Abstract: 1510324 Gunn effect devices AGENCY OF INDUSTRIAL SCIENCE & TECHNOLOGY 21 July 1975 [24 July 1974] 30445/75 Heading H1K In a bulk semiconductor device exhibiting negative conductivity under a high field, and which is subjected to a non-uniform field distribution between bias ohmic electrodes, a high-field domain created between the cathode and field effect signal electrodes in the lower field portion is detected by a further electrode or as a current charge through the device. As shown, a semiconductor 1 is shaped to produce a non-uniform field between a cathode 2 and an anode 3. Non-ohmic signal electrodes 4, 4<1> are positioned in a wider region 7. Application of positive signal voltages to one or both of the negatively biased electrodes 4, 4<1> can raise the electric field in a narrow region 6 above a threshold value, to create a high field domain near cathode 2. The subsequent movement of the domain towards anode 3 is detected either by the current change in an external resistor or by detecting the potential at the ohmic or non-ohmic electrode 5. The field effect signal electrodes 4, 4<1> may be Schottky junctions, p-n junctions or capacitative junctions. In other embodiments (not shown) electrodes 4, 4<1> may be coplanar. Also, a further signal electrode may be provided which is coplanar with or separated laterally from electrodes 4, 4<1>. In alternative embodiments (not shown), the non-uniform field distribution is achieved either by using a semiconducting layer of differential thickness or by fabricating a uniform semiconductor block from materials of different resistivity. Logic operations can be performed with the device. For example, the two signal electrode device can be used for AND, OR and INHIBITION operation, depending upon positive signals on both electrodes 4, 4<1> creating a domain; positive signals on either electrode 4 or 4<1> creating a domain; or a positive polarity signals on either of electrodes 4, 4<1> and a negative signal on the other resulting in a domain not being created.
Patent GB-1503088-A (GB)
Title: Avalanche photodetector
IPC: H04B10/69
Filed: 1976-07-22
Abstract: 1503088 Avalanche photo-detectors STANDARD TELEPHONES & CABLES Ltd 22 July 1976 30604/76 Heading G1A [Also in Division H1] A photo-dector arrangement comprises an avalanche photodiode APD arranged to receive a major proportion (1-α) of the incident light and a secondary non-multiplying photodiode SPD arranged to receive a constant mirror proportion (α) of the incident light. A signal V 1  proportional to gain and a signal V2 proportional to the mean received signal are fed to a bias supply 6 which controls the gain of the APD either to a pre-set constant or to a value dependant on the received signal power. In a simpler circuit for providing constant gain Fig. 3 (not shown) only the SPD output is filtered, by a low-pass filter (7), and the filtered SPD photocurrent passes via an amplifier (8) with constant gain to the APD to provide the bias current. The photodiodes, transistor amplifier, and interconnections may be formed in an integrated circuit structure; see Division H1.
Patent GB-231830-A (GB)
IPC: G09F3/12
Filed: 1924-12-20
Abstract: 231,830. Zander & Co. April 7, 1924, [Convention date]. Label fastenings. - In pin-tickets having two pins 3 rigidly secured to them the base points of the pins are so spaced that, by means of two fingers pressing on the outer sides of the pins, they can be simultaneously bent down towards each other until they press closely upon the fabric to be ticketed. The pins may be curved, as shown in Fig. 5, so as to pierce the fabric when pressed down and to lie in an embossed recess 9 in the ticket. If the two pins are connected by a cross wire 2, inflections 8 in this may be located close to the pins to form a point of bending in them, and the wire 2 may be bent at 13, Figs. 8 and 10, away from the ticket so as to protect the points of the pins when these are pressed down behind it. The pins may be separate, as shown at 14, Fig. 6, bends 8 in the bases being located close to and between the pins to facilitate their bending.
Patent GB-919685-A (GB)
Title: Improvements in the production of film-forming aqueous polymer dispersions
Inventor: DAUMILLER GUENTHER
IPC: C09D4/06
Filed: 1961-08-25
Abstract: Film-forming aqueous polymer dispersions are prepared by polymerizing an ethylenically unsaturated compound in aqueous emulsion in the presence of an emulsifier and of 0,1 to 10% by weight of the monomers of one or more polyvinyl alkyl ethers, which may contain hydrophilic substituents.  Ether polymers specified are those of C1-C4 alkyl vinyl ethers, ethylene glycol monovinyl ether, monoethyl diethylene glycol vinyl ether, methyl vinyloxyacetate, vinyloxyethylamine and ureidoethylvinyl ether, and the products containing hydroxyl groups obtained by the partial ether-cleavage of polyvinyl alkyl ethers. Polymerizable monomers specified are styrene, vinyl and vinylidene chlorides, acrylic acid, methyl methacrylate, butyl acrylate, allyl acrylate, butanediol diacrylate, acrylamide, methacrylamide, acrylonitrile, vinyl acetate and propionate and butadiene. Emulsifiers specified are the sodium salts of alkyl benzene and paraffin sulphonates and addition products of ethylene oxide and fatty alcohols or octyl phenol.  The reaction medium may also contain catalysts, e.g. persulphates, azodiisobutyronitrile and persulphates + sodium hydrogen sulphite, and dodecyl mercaptan.  The examples describe the polymerization of: (1) styrene followed by the polymerization of butadiene in the polystyrene latex thus formed; (2) a mixture of acrylic acid, methyl methacrylate, butyl acrylate and acrylonitrile; (3) vinyl propionate; and (4) a mixture of methyl methacrylate and butyl acrylate.
Patent GB-252299-A (GB)
Title: Improvements in casings for electric transformers and the like
IPC: H01F27/12
Filed: 1925-12-07
Abstract: 252,299. Wehrle, O. Dec. 7, 1925. Transformers. - In transformer and like tanks having corrugated side walls, the cover frame a is welded at c, d to a member f which forms a closure to the ends of the corrugations g of the side walls, and is outwardly bent at e to form a channel member of curved, square or other angular cross-section. The bottom trough member k may be similarly secured to the side walls as by a member i welded to the trough at m, n. Alternative means for securing the trough comprise angle members or channel members welded to or formed integrally with the trough.
Patent GB-380288-A (GB)
Title: Improvements in and relating to the moulding of composition rolls for printing machines
IPC: B41N7/00
Filed: 1931-11-06
Abstract: 380,288. Moulding composition printing rollers in centrifugal machines. TRIGGS, W. W., 57, Lincoln's Inn Fields, London.-(Oxford Varnish Corporation; Detroit, Michigan, U.S.A.) Nov. 6, 1931, No. 30847. [Class 87 (ii).] Centrifugal moulding apparatus, for forming composition rollers for printing machines, comprises a mould M surrounding a central shaft 30 supported at the lower end in a footstep bearing 5 and at the upper end by a driving clutch 61 carried by the swinging frame 52 loosely mounted on the main power shaft 50. The frame is raised and lowered by means of handles 55 to engage and disengage the clutch, double bevel gear 70, 72 being used to connect the clutch to the power shaft. The mould comprises a cylindrical shell fixed by a nut 41 between fixed and movable end plates 20, 25 respectively. The endplates are recessed to receive a soft metal packing which contacts with the ends of the cylindrical shell to prevent leakage of material. The shaft 30 carries the usual core member. In operation, the nut 41 and cap 25 are removed and the mould charged with the molten composition, after which the cap is replaced and the nut screwed up tightly. The frame 52 is lowered to engage the clutch to rotate the material, hot water being circulated through the tank 8 during the process. At the conclusion of the moulding cold water is circulated through the tank and the mould removed bodily by lifting it out of the footstep bearing. In the modified construction shown in Fig. 3, the lower bearing for the mould is formed on the end cap 20a.
Patent GB-661172-A (GB)
Title: Flow reversing valve for use in pressure fluid conduits
IPC: F16K11/083
Filed: 1947-11-20
Abstract: 661,172. Plug cocks. RAYMOND, H. Nov. 20, 1947. 30853/47. [A Specification was laid open to inspection under Sect. 91 of the Acts, May 22, 1948.] Class 135. A plug cock, e.g. for reversing the flow of liquid between two tanks, comprises a casing 9 having ports 10, 11 connected to the tanks and a plug, the ends 20, 21 of which are connected to a circulating pump and which is divided by a partition 17 into compartments 15, 16 having ports 18, 19 coacting with the ports 10, 11. The casing may be rotated on the plug by a handle 22 or, alternatively, the plug may be rotated in the casing. Specification 650,726 is referred to.
Patent GB-1148531-A (GB)
Title: Conductive media for electroluminescent devices
IPC: H05B33/28
Filed: 1966-07-08
Abstract: 1,148,531. Electroluminescence. SYLVANIA ELECTRIC PRODUCTS Inc. 8 July, 1966 [8 July, 1965], No. 30861/66. Heading C4S. An electrically conductive lacquer 1 in a flexible electroluminescent lamp for instance, comprises a mixture of indium oxide doped with a metal having an oxidation state different from the oxidation state of indium (e.g. bivalent, quadrivalent or pentavalent metals; Sn, Cd, Sb, Bi, Zn, As, Ti and mixtures thereof are instanced) preferably in amount 0À05 to 0À5 grm. atm/mole of In 2 O 3 , and dispersed in an organic polymeric matrix such as cellulose nitrate and acetate ; cellulose ethylate, -methylate, -hydroxyethylate, -cyanoethylate; polyacrylamide and polyhexamethylene adipamide copolymers; alkyd polyesters, polycarbonates; melamine formaldehyde amino resins; epoxy resins; polyvinylidene fluoride; polyvinyl alcohol; polyurethanes; and silicones. Barium titanate in insulating layer 7 and the phosphor (e.g. ZnS: Cu) in layer 8 may be dispersed in cyanoethylcellulose, cellulose nitrate, polyacrylates, polymethacrylates, polyvinyl chloride, cellulose acetate, alkyd resins, epoxy cements and polymeric triallyl cyanurate with modifiers or plasticizers such as camphor, dioctyl phthalate, or tricresyl phosphate. Layer 6 may be of dead soft annealed Al foil and thermoplastic layers 4 and 5 of polyethylene, polytetrafluoroethylene, polychlorotrifluoroethylene, polystyrene and methyl methacrylate, vinylidene and vinyl chloride and fluoride polymers for instance. In preparing layer 1, firing of the starting mixture at 1480‹ F. in a covered silica crucible is instanced, the reaction product being mixed with polyvinylidene fluoride and dimethylformamide. In pneumatic or hydrostatic laminating procedures, pressures of 500 1b/square inch at 110‹ to 200‹ C. are mentioned. Printed circuits may be integrated in the lamp structure.
Patent GB-927273-A (GB)
Title: Improvements in a method of and apparatus for filtering oils containing peptised solids
Inventor: FRYER KEVIN CHAMBERLAIN
IPC: B01D35/18
Filed: 1958-09-26
Abstract: <PICT:0927273/III/1> <PICT:0927273/III/2> The invention comprises a method of filtering oils containing peptised solids in which a coagulant material is absorbed by material of large surface area per unit volume and brought into contact with oil, after which the oil, or a part thereof, is admitted to a filter of small pore size, e.g. an edge type filter. The coagulant, e.g. diethylene triamine, is absorbed in a fibrous mat 3 which is crimped and rolled, each convolution of the roll being separated by a backing of a plain sheet of similar material. The roll 3 is contained in a casing 2 having an inlet 1 and outlet 8 and an electrically heated jacket 4 surrounding it.  A bracket 5 connects the casing 2 to the edge-type filter 7 which may also have an electrically heated jacket.  The coagulant may be absorbed in a powder having an apparent density similar to the contaminated oil, e.g. diatomaceous earth or cellulose flours.  The coagulator may be placed in a by-pass circuit so that only a proportion of the oil from it passes through the filter.
Patent GB-306183-A (GB)
Title: Improvements in or relating to the lighting of indicating instruments on automobile and like vehicles
IPC: B60Q3/04
Filed: 1927-11-17
Abstract: 306,183. Jones, A. L. Nov. 17, 1927. Dials and scales, illuminating; index hands.- Indicating instruments in the interior of automobile and like vehicles are illuminated by electrical discharge tubes embodied in the instruments and energized from the ignition system of the engine. A discharge tube, e.g. a neon tube. may be mounted on the dial of the instrument or behind a transparent or semi-transparent dial, or the tube may be carried by the indicating hand, or the graduations themselves may be formed by miniature discharge tubes. As shown applied to a speed indicator, the neon tube 5 is mounted on the rear surface of the hand 3 and has one pole connected to the spindle 4 and through the mechanism and casing of the instrument to a lead 12 connected to the ignition circuit. The other lead 9 from the ignition circuit passes through an insulating bush 10 on the casing to a terminal 8 on a metal ring 6 secured by studs 7 to the dial 1, which is of insulating material, in proximity to the hand 3 in all positions. The ring 6 may be insulated from a dial of conducting material or may be held by loops of wire instead of studs. A number of instruments on the dashboard may bo supplied through a common switch or controlled by separate switches.
Patent GB-872753-A (GB)
Title: Material breaking cartridge
IPC: F42B3/06
Filed: 1959-09-11
Abstract: 872,753. Fluid-pressure blasting devices. MARMON-HARRINGTON CO. Inc. Sept. 11, 1959 [May 15, 1959], No. 31028/59. Class 9(1). A fluid-pressure blasting cartridge 10 is provided having a chamber 22 to which gas under pressure is fed, the chamber having lateral discharge ports 19 closed by a valve 20 situated between the pressure chamber and a control chamber 21 to which the gas is also fed so that the pressure in the two chambers is substantially equal. The control chamber is closed by a valve seating 33 having a through passage 44 closed by a control valve 57 in a valve chamber 58, which valve chamber has a vent 61 to the surrounding atmosphere, which vent is also closed by the control valve. The tension of a spring 66 supporting the control valve is such that when a predetermined pressure is reached in the chambers 22, 21, the control valve yields and vents the chamber 58 to the atmosphere. This produces a drop in pressure in the chamber 21, such that a spring 30 can no longer support the valve 20 against the pressure in chamber 22, and the valve 20 uncovers the ports 19. The valve seating 33 is counterbored to house an annular insert 51 of hardened steel held in place by upsetting a rim 53 on the seating. The insert has an annular seat portion against which bears a ball 55 of hardened steel, the ball being loosely mounted in a pocket in the control valve 57. Movement of the valve 57 is limited by a rod 68 and the tension of the spring 66, which may be rectangular or oval in section, may be varied by interposing shims 67 between the spring and the end cap 39. Passages 62 connect the vents 61 via a groove 63 and ports 65 with the interior of the valve chamber. After the supply of gas through the connections 15, 16 has been cut off and the charge released from the chamber 22, springs 30, 66 automatically reclose the valves and prepare the cartridge for re-charging. Instead of a ball valve, the control valve member 57 may be provided with a conical end extending into the seating 33 to close the passage 44. The replaceable insert 51 may be omitted, the bearing surface of the seating then being hardened. Variations in the valve casings are also described. Specification 727,128 is referred to.