baber/WOPTO huggingface dataset:
Patent GB-301093-A (GB)
IPC: C01C3/14
Filed: 1928-11-24
Abstract: 301,093. Frank, A. R., and Caro, N. dem. Nov. 24, 1927, [Convention date]. Addition to 282,379. Hydrocyanic acid.- In preparing hydrocyanic acid as described in the parent Specification, (1) the compounds of alkaline earth metals may be replaced by zinc compounds, and (2) small additions of copper or silver or compounds of these metals may be made. The contact substances may be made into compact pieces with waterglass or other binding agent.
Patent GB-1382190-A (GB)
Title: Process and apparatus for the continuous full-width washing of textile webs
IPC: D06B23/16
Filed: 1972-07-20
Abstract: 1382190 Textile treating apparatus KLEINEWEFERS INDUSTRIE-COMPANIE GmbH 20 July 1973 [20 July 1972] 34801/73 Headings D1L and D1P In a process for the full-width washing of a textile material T the material is fed via sealed inlet 4 spreader roller 3, feed rollers 2 and tensioning roller 5 into a pressure chamber 1 and passes through the chamber in zig-zag manner between guide and deflecting rollers 6, wash liquor being sprayed onto the approximately horizontal runs of the web from spray pipes 10 and the chamber being pressurised to a pressure of at least 1 atmosphere absolute by air or steam admitted through inlets 13 or 13a at a temperature of at least 100C. As illustrated collecting trays 7 may be positioned below each roller 6 to collect wash liquor expressed from the material T as it contacts each roller. Outlets 8 from each tray 7 allows the collected liquor to fall onto the surface of the material as it passes over the deflecting roller 6 mounted immediately therebelow. Heaters 15 may be provided in each tray 7 to maintain the liquor at the required temperature. Used wash liquor W collects in the bottom of the chamber 1 and the rollers 2, 3 and 5 are preferably arranged so that incoming material passes through the collected liquid before passing round the rollers 6. The chamber 1 is preferably surrounded by a heating jacket 12. A further similar washing chamber 11 may be provided at the outlet to the chamber 1 or the chamber may be sealed by an outlet similar to the inlet 4.
Patent GB-1517163-A (GB)
Title: Class a amplifier
IPC: H03F3/26
Filed: 1975-09-18
Abstract: 1517163 Amplifiers POST OFFICE 18 Sept 1975 [7 Aug 1974] 34852/74 Heading H3T A Class A push-pull amplifier with increased efficiency, comprises two amplifying devices 3, 4 having their input electrodes connected to input terminals 1, 2 respectively, and their output electrodes coupled by a load circuit 8, and means for controlling the total supply current for the devices to have a component proportional to the input signal after full wave rectification. Devices 3, 4 may be either transistors in common collector configuration, as shown, or transistors in common emitter configuration, Fig. I (not shown), or thermionic valves (not illustrated) in common anode or common cathode configuration. The controlling means may comprise a transistor 9 with its base receiving the signal after passing through a differential amplifier 12, a bridge rectifier 13, and a further amplifier 14. The rectified waveform, Fig. 3b (not shown), turns on transistor 9 during both positive and negative half-cycles of the signal waveform, Fig. 3a (not shown). A standing component of current may be provided either by a transistor 18, or by applying to the output terminal of bridge 13 which is normally connected to supply line 10 an additional D.C. bias established by at least one diode (25-27), Fig. 4 (not shown), which may be a Zener diode. In an alternative circuit for providing a standing component of current differential amplifier 12 is replaced by one (31) Fig. 5 (not shown), having its output balanced about a terminal which can receive a D.C. bias. Both full wave rectification of the signal and current control are effected by two transistors (29, 30) in parallel.
Patent GB-1283847-A (GB)
Title: Improvements in or relating to potentiometers
IPC: H01C10/32
Filed: 1970-07-20
Abstract: 1283847 Potentiometer SOC FRANCAISE DE L'ELECTRO RESISTANCE 20 July 1970 [29 July 1969] 35006/70 Heading HIS A rotary potentiometer having a metal jacket 7 retaining the components within the casing 2, has a stop 41 formed on the jacket which engages with the raised portion 39 (Fig. 5) of a metal plate 37 at the limit of travel of the slider. The metal plate is located on top of the actuator 5 (Fig. 4) and is overlaid into the slot 32 which receives the actuating tool. A sealing ring 31 is included between the actuating member and the case and a recess 28 in the actuating member locates the end 27 of the slider 4 allowing the bushes 26 to be swept over the resistive track 8. The case and the actuating member may be of thermosetting material (e.g. diallyl phthalate) and the resistive track may be " cermet " or metal alloy on an insulating substrate 9 of alumina or beryllium oxide. An earthing screening lead 36 may be attached to the can. A further embodiment, Fig. 10, has no plate and the actuating slot is unsymmetrically arranged with respect to the rotary axis such that the appropriate operating tool will engage the stop 57 on the jacket 7. Resilient sawteeth 53 engage the ease to form a seal between the actuating member and the case. Both embodiments may be provided with index marks and a projection 42 on the case engages the hole 40 in the jacket to prevent relative angular displacement.
Patent GB-411185-A (GB)
Title: Improvements in continuous boiling, evaporating and concentrating plants
IPC: B01D1/22
Filed: 1932-12-10
Abstract: <PICT:0411185/III/1> Jams, preserves, and similar semi-liquids are concentrated by passage over a series of mutually inclined trays a heated by jackets b over which the material is moved by chain conveyers e carrying scrapers f.  The material on the last tray may be cooled by passing cold water through the jacket b and is then fed to a reservoir l from which pips &c. are separated by flotation and collected in a sieve p in a tank q.  The jam may be fed to the top tray through a pipe s and solids may be added in buckets v of known capacity supported on an elevator u.  Alternatively the buckets may be arranged as weighing machines on a conveyer belt supported on rollers balanced by adjustable weights so that if the buckets are not filled to the correct weight electric contacts are operated which control the amount of material admitted to the buckets.
Patent GB-646461-A (GB)
Title: Improvements in grids for electronic tubes
IPC: H01J19/38
Filed: 1947-12-31
Abstract: 646,461. Making thermionic grids. CAMPAGNIE DES LAMPES. Dec. 31, 1947, No. 35104. Convention date, Sept. 26, 1945. [Class 83 (ii)] [Also in Group XL (a)] A tubular grid is constructed of preformed complementary part-tubular longitudinal sections assembled in juxtaposition, each section consisting of transverse grid wires shaped according to the part tubular shape of the section and extending between the inner edges of a pair of spaced supports in the form of strips to which the grid wires are fixed and which extend longitudinally of the grid and form flanges disposed outside the tubular body formed by the grid wires of the assembled sections, adjacent sections in the assembly having their adjacent flanges secured together in face to face relation. The grid wires 12, Fig. 4, are secured to supports 10, 11 by welding or by anchoring them in notches, and after welding are trued by a pull on the supports 10 and 11, if desired with the aid of a device adapted to impart a particular shape, such as an angle or curvature as shown in Fig. 4, to the wires to control their deformation due to thermal expansion. The wires are trued cold if of tantalum and hot, if necessary in a hydrogen atmosphere, if of tungsten or molybdenum. The section so formed is then shaped in a suitable mandrel, such as 13 in Fig. 5, which is used for a grid of circular cross-section. Complementary sections are then joined together by welding or clamping the adjacent flanges of adjacent sections. A welding strip of tantalum may be interposed between the flanges and the joint may be capped with a thin strip of tantalum welded in position.
Patent GB-836132-A (GB)
Title: New alkaloid salt and method of preparing same
Filed: 1956-11-16
Abstract: The invention comprises rescinnamine phosphate and hydrates thereof, especially the dihydrate.  These are made by reacting rescinnamine or a salt thereof with phosphoric acid or a salt thereof.  In an example rescinnamine is dissolved in methanolic phosphoric acid and the salt precipitated by ether.
Patent GB-1468862-A (GB)
Title: Flexible cable
IPC: H05K1/02
Filed: 1974-08-09
Abstract: 1468862 Signal cables AMP Inc 9 Aug 1974 [23 Aug 1973] 35187/74 Heading H1A A flexible cable for a transmission line comprises a flat flexible insulating substrate having a signal conductor 12 on one surface that extends longitudinally of the cable but is laterally offset from the longitudinal centre line of the substrate and on the opposite surface a ground conductor 14 also extending longitudinally and which describes a regular tortuous path laterally across the substrate, the flat substrate being folded along the longitudinal centre line so that the surfaces bearing the signal conductor 12 overlap and the conductor is sandwiched between portions of the ground conductor. The tortuous path, before folding, may be generally sinusoidal and may be from one edge of the substrate to the other. The ground conductor may be in two halves (58, 60, Fig. 4, not shown), each being laterally offset from, and on opposite sides of, the longitudinal centre line with each describing a generally sinusoidal path which is a mirror image of the other. There may be several signal conductors (56) and alternate ones may be connected (not shown) by pins, staples, welds to form quasi-coaxial lines (Fig. 6, not shown). Termination may be by crimps 22, 24 Fig. 2, either from the same or opposite sides, or (not shown) soldered connection to terminal pads 18, 20 of enlarged area formed at equal intervals along the ground and signal conductors, corresponding pads being spaced apart and aligned. The fold may be retained by adhesives. By choice of the thickness and dielectric properties of the substrate and the wavelength or pitch of the ground conductor the characteristic impedance of the folded line can be determined. It is stated that improved cross-talk, both cable to cable and channel to channel is shown while the high frequency attenuation is reduced and the impedance is stable.
Patent GB-1537472-A (GB)
Title: Method of sealing plastics containers
IPC: B29C65/70
Filed: 1976-11-26
Abstract: 1537472 Moulding seals on containers P D (TECHNICAL MOULDINGS) Ltd and BICC Ltd 26 Nov 1976 [27 Aug 1975] 35366/75 Heading B5A A method of moulding a seal between a lid 11 and a container 1 holding contaminated material comprises injecting thermoplastics material e.g. polythene through one or more parts 25 in a mould 21 so that a groove 18 formed in the lid and and container is filled. The container and lid may be of polythene which is softened by the injected material. One or more ports 25 may be provided with a plunger which is introduced into the mould cavity as the injected material cools to take up shrinkage. The mould may be fitted to the lid prior to or after the latter is inserted into the container. The injection units may be attached to the mould by quickrelease mechanism. The moulding process may be carried out by remote control. The mould may be formed of transparent e.g. acrylic or non-transparent plastics, metal or metal alloy. The container and lid may have tapered mating surfaces to increase the tightness of fit as the lid is inserted.
Patent GB-417903-A (GB)
Title: Process for reduction of ores, and furnace for carrying out the process
IPC: C21B13/10
Filed: 1933-12-16
Abstract: 417,903. Metallurgical furnaces. ANDERSEN, G., 8, Palµgade, Copenhagen. Dec. 16, 1933, No. 35454. Convention date, Dec. 29, 1932. [Classes 51 (i) and 51 (ii).] In the reduction of ores in a furnace 2 having an annular rotary hearth 6, the ore, preferably admixed with solid reducing material, is spread in a relatively thin layer on the hearth 6 which traverses first a heating zone in countercurrent to heating gases and then a zone in which the charge is cooled without exposure to atmospheric air. The heating gases may be generated by the combustion, in a chamber 19, Fig. 2, of liquid, gaseous, or pulverulent fuel supplied by a burner 20, or the heating may be effected by a stream of compressed air which sweeps over electrodes, Fig. 6, or electric resistance elements, Fig. 7, disposed in the chambr 19. The charge material is supplied from a hopper 15 by a rotary feeder 16 which is driven, through a chain 18, from the hearth driving mechanism 9, 10. The treated material is removed from the hearth and deposited in a sealed watercooled hopper by a studded roller 25 and a fixed scraper member 24, the latter also serving to deflect the heating gases upwardly through the charging device and prevent their entry to the cooling zone of the furnace. A pipe 21 and fan 22 are provided to enable the heating gases to be recirculated through the furnace if desired.
Patent GB-1032860-A (GB)
Title: Cooling device
IPC: F25D3/08
Filed: 1963-12-13
Abstract: 1,032,860. Vessels provided with cooling means. A. M. STONER. Dec. 13, 1963 [Dec. 17, 1962], No. 35482/65. Divided out of 1,032,859. Heading F4H. The subject-matter of this Specification is identical with that described with reference to Figs. 1 to 7 of Specification 1,032,859, but the claims are concerned with the means for retaining the solid refrigerant in the upper portion of the double-walled container.
Patent GB-443658-A (GB)
Title: Improvements in and relating to the bodies of vehicles
IPC: B60J7/047
Filed: 1934-12-11
Abstract: 443,658. Vehicle opening tops. DOWSETT, C. E., 191, Abbey Street, Derby. Dec. 11, 1934, No. 35533. [Class 108 (i)] Vehicle roofs are provided with a transversely slidable panel above one or more doors to facilitate entry and exit to and from the vehicle. As shown the vehicle is provided with two opposite doors a, b and two panels d, e slidable relatively to each other. A rigid central longitudinal member k is provided. The side edges o, t of the panels are guided by members p, q together with strips k<1>, r, s. The front and rear edges of the panel d are provided with flanges f, m and similar edges of the panel e are provided with flanges n, i. The edges of the panel d, e are adapted to enter grooves j in the tops of the members c of the doors a, b. Handles g, h for manipulating the panes, are provided.
Patent GB-782994-A (GB)
Title: Improvements in or relating to glazing with glass sheets
IPC: E06B3/58
Filed: 1954-12-09
Abstract: 782,994. Glazing strips. FEGAN, T. G. Oct. 19, 1955 [Dec. 9, 1954], No. 35623/54. Class 20(3) A sealing strip 1, 1A or 1B of semi-soft plastic material, to be applied round the edges of a sheet of glass 10 or 10A for interposition between the glass and a window frame 16 or 23, comprises a channel 2 with the sides,5 tapering to the mouth 3 so that the sides 5 must be expanded to fit the glass sheet 10 or 10A which is only slightly less thick than the width of the bottom 4 or 4A of the channel 2, the side walls 5 thickening outwards at 7, 7A or 7B towards the mouth of the channel so as to form a hollow 20 or 20A between the outer face of the strip and the frame 16 or 23, which is deeper than the strip, so that sealing pressure is only transmitted between the frame and the glass sheet by the thickened portion 7. 7A or 7B which is relatively remote from the edge of the glass sheet at the bottom 4 or 4A of the dhannel. As shown in Fig. 2, the bottom 4 is initially straight but curves when the glass 10 is inserted so that the corners 11 of the glass are free within the channel 2. A metal fitting 16, 17 in a rebate 15 provides a groove 18 of slightly less width than the width across the pointed ribs 7 so that they are compressed. The bottom of the strip 1 has a bulge 9 and this bulge and the corners 14 seat on the bottom of the groove 18 leaving the recesses 20 on both sides. In Fig. 5, the bottom 4A of the channel is inwardly curved so that when inserted, the glass 10A only touches along a narrow area. Rounded thickenings 7A are compressed between the frame 23 and a beading 24 secured to the frame by screws 25, leaving air spaces 20A. In Fig. 8, the strip 1B is shown with an integral beading 31 joined by a neck and with holes 38 for screws. When in position, the tip of the beading 31 compresses the rounded thickening 7B to leave a narrowed air recess 37. For use with a concrete frame, screws or nails are dispensed with, the triangular beading 31 gripping the frame when it is compressed. An additional pair of ribs or thickenings may be provided about the middle of the strip. Putty or like material may be used to secure the strip against the frame.
Patent GB-390577-A (GB)
Title: Improvements in engine starters
IPC: F02N15/06
Filed: 1931-12-24
Abstract: 390,577. Turning-gear. ECLIPSE MACHINE CO., Elmira, New York, U.S.A. Dec. 24, 1931, No. 35638. Convention date, Dec. 27, 1930. [Class 7 (v).] In an engine starter in which a pinion 27 is driven from the shaft 11 of a starting-motor 10 through sets of inter-threaded helical springs 21, 34 anchored respectively to the shaft 11 and to the pinion, and moves automatically into mesh with an engine member 28, the springs 21 are secured at their outer ends 22 in a circumferential groove 18 and oblique grooves 19 in an enlargement 17 of a collar 12 mounted on the shaft 11 by means of a key and a set-screw 14 retained by a spring ring 16. The springs 34 are similarly secured to an enlargement 31 of the pinion hub 29, and the springs are retained in the grooves by retaining sleeves 23, 37 having flanges 24, 26 and 38, 39 respectively. The meshing movement of the pinion compresses a light spring 46 and is limited by an abutment sleeve 42 mounted on a reduced extension 41 of the collar 12 by means of depressions 43 engaging a groove 44. The springs 21, 34 have a rectangular section of considerable depth to provide ample stiff. ness and friction surfaces.
Patent GB-472788-A (GB)
Title: Improvements relating to pistons
IPC: F02F3/00
Filed: 1936-12-30
Abstract: 472,788. Pistons. VARIABLE CAM CO., Ltd., and JACKSON, G. J. Dec. 30, 1936, No. 35689. Convention date, Dec. 30, 1935. [Class 122 (i)] A split skirt B, which may be expanded by springs, is formed separate from the head A and anchored thereto by the gudgeon pin or bushes engaging bosses a<1>, b<1> formed on the head and skirt, and provided with cylindrical contacting faces a<2>, b<2>, to prevent relative rocking movement. The upper part of the skirt abuts against the lower surface of the head. Specification 312,133, [Class 122 (i)], is referred to.
Patent GB-816561-A (GB)
Title: Improvements in systems for automatically controlling starting devices, associated with the carburettor, for facilitating starting of internal combustion engines
Inventor: MENNESSON ANDRE LOUIS
IPC: F02M1/04
Filed: 1957-11-15
Abstract: 816,561. Carburetters. SOC. INDUSTRIELLE DE BREVETS ET D'ETUDES S.I.B.E. Nov. 15, 1957 [Nov. 23, 1956; June 15, 1957], No. 35701/57. Class 7(3) [Also in Group XIII] A system for the automatic control of a starting device associated with the carburetter facilitating starting of an internalcombustion engine, essentially constituted by a temperature sensitive element capable when heated of bringing the device out of action and, when allowed to cool down of bringing this device into action, this element being heated by an electric resistance, is characterized in that the temperature sensitive element supported by an electrically insulating member which also supports the heating resistance. As described below the starting device is a distributing valve of a starting carburetter but it is stated that the starting device might be constituted by a choke or strangler. As shown the starting carburetter distributing valve 13 is controlled by a temperature sensitive element (bimetallic spiral strip 19). This strip may be heated by an electric resistance 20 to which current is fed from a battery 21 advantageously at the same time as it is fed to the ignition circuit 22. The inner fixed end of the bimetallic strip 19 is supported by an electrically insulating member 27 which also serves to support the resistance 20. The casing 23 is preferably made of a material such as synthetic resin. It is possible to make use of bimetallic strips which are than and short. If the heating of the bimetallic spiral, is too quick the insulating member 27 may be made of greater mass. In a modification, Fig. 4, a heat accumulator member 37 is fitted around the heating resistance 20. This member 37 is in contact only with the member 27 and the inner end of the bimetallic spiral strip. The rotating valve 13 may be replaced by a slide valve such as illustrated in Fig. 8. The lever 24 of the starting device may co-operate with a contact device to short circuit a resistance in the circuit of a vehicle electromagnetic clutch when the starting device is brought out of action. Specification 789,433 is referred to.
Patent GB-1133478-A (GB)
Title: Electrical switch assemblies
IPC: H01H13/12
Filed: 1966-03-18
Abstract: 1,133,478. Switches held set and freed mechanically. LITTON INDUSTRIES Inc. 18 March, 1966 [1 April, 1965], No. 35891/67. Divided out of 1,133,477. Heading H1N. The Specification is identical with the parent Specification but the claims are concerned with the push-button actuating mechanism and the rotatable and axially movable cam with the interrupted spiral-shaped cam surface.
Patent GB-1098098-A (GB)
Title: Die cutting machines for labels and the like
IPC: B31D1/02
Filed: 1966-08-11
Abstract: 1,098,098. Cutting-out labels. PRINTING MACHINERY CO. Aug. 11, 1966 [Sept. 1, 1965], No. 35947/66. Heading B4B. A machine for cutting-out labels comprises a power-operated anvil 4 movable through an opening in a table 6, and a hollow die mounted on a head 73 for cutting a stack of labels located upon the anvil, the stack of labels being located by means comprising a first pusher element 7 co-operating with a first adjustable stop means 11a and a second pusher element 19 co-operating with a second adjustable stop means 16a. Means are provided for retracting the pusher element 7 after the stack of labels is contacted by the die. The pusher element 19 is mounted upon an adjustable body 20 slidable on a dovetailed bar (21), Fig. 4 (not shown) mounted on a plate 22 which is biased towards the anvil 4 by means of coiled springs (37, 37a), Fig. 12 (not shown). The forward end (22a), Fig. 3 (not shown), of the plate 22 has a bevelled extension (38) and the anvil carries a corresponding bevelled cam member (40) which, in the lowermost position of the anvil, engages the bevelled extension (38) but when the anvil is moved upwardly, the pusher element 19 is released to engage the stack of labels. The plate 22 is adjustable relative to the table 6 by means of two shafts (32, 32a), Fig. 12 (not shown) mounted on aligned uprights (28 to 31 and 28a to 31a) provided on the table and passing through pairs of uprights (35, 36 and 35a, 36a,) provided on lateral extensions (33, 34 and 33a, 34a) of the plate. The pusher element 7 is operable by means of a cam (54), Fig. 5 (not shown) mounted on a shaft (53) driven from a motor-driven shaft (51) by means of gears (50, 52). The anvil is connected to a plunger (5), Fig. 5 (not shown), which is operable by means of another cam (55). Elements are attached to the means 11a, 16a and to guide members 9, 15 to collect and discharge waste from the cut labels by gravity, as at 78.