baber/WOPTO huggingface dataset:
Patent GB-112355-A (GB)
Title: Improvements in the Seats and Pans of Water-closets, Latrines and the like.
Inventor: ANTILL JOSH
IPC: A47K13/00
Filed: 1917-03-15
Abstract: 112,355. Antill, J.. March 15, 1917. Closet b a s i n s and seats.-The seats and pans are of the kind in which an opening is provided in front to avoid contact. The pan isformed with a sloping back 3 with lugs 2 for the attachment of part of the seat. The front part of the seat may be formed in two parts hinged to the back in which part of the opening is formed as shown, and provided with a connecting-bar 7, or the seat may have a sloping back part hinged to a support fixed to the pan. The seats may be made of galvanized or enamelled metal, &c.
Patent GB-1447274-A (GB)
IPC: C08J3/09
Filed: 1974-01-28
Abstract: 1447274 Polymer/isocyanate compositions; polyurethanes and foams IMPERIAL CHEMICAL INDUSTRIES Ltd 3 Jan 1975 [28 Jan 1974] 03828/74 Headings C3C C3P and C3R Dispersions of a polymer of one or more ethylenically unsaturated monomers in an isocyanate are prepared by (i) polymerizing said monomer(s) in an inert solvent under otherwise conventional conditions, (ii) adding an isocyanate to the polymerizate/solvent mixture, and (iii) removing the solvent by evaporation or distillation, e.g. in a thin film evaporator. In examples, acrylonitrile and acrylonitrile/styrene polymers are made in chlorobenzene, and acrylonitrile/styrene/methyl methacrylate polymer is made in xylene; and the added isocyanate is selected from mixed tolylene diisocyanates, isophorone diisocyanate, a molten urethane polyisocyanate and a crude mixture of methylene-bridged polyphenylpolyisocyanates. The dispersions prepared above are used in the manufacture of polymeric materials by reaction with compounds containing at least two reactive hydrogen atoms, e.g. foamed polyurethanes are made by carrying out the reaction in the presence of a foaming agent. Examples 3-6 illustrate the preparation of foamed polyurethanes by otherwise conventional means, using water and/or trichlorofluormethane as blowing agents, and optionally a chloroethyl or a bromopropyl phosphate (as fire-retardant).
Patent GB-607518-A (GB)
Title: Improvements in the manufacture of wire
IPC: B21C37/04
Filed: 1946-02-07
Abstract: 607,518. Making rods and wire ; milling. HERROD, E. Feb. 7, 1946, No. 3830. [Class 83 (ii) and 83-(iii)] Milling-cutters ; chucks; mandrel8.-Copper alloy, e.g. phosphor bronze, or other metal or alloy wire is made by centrifugally casting a hollow cylinder, removing the inner and outer surface layer, cutting helically and drawing the strip so produced. The cylinder may be ¢ inch thick and a layer #inch thick may be bored from the inside and turned from the outside to produce a cylinder 11 which is “ inch thick and has flanges 28 at each end. These are secured by screws 36, Fig. 8, to a flange 36 of a chuck 33 and a disc 37 which is fixed thereto by a nut 38. Ganged milling cutters 42 are then advanced, by turning a hand-wheel 41, Fig. 7, into the cylinder 11. This is then rotated by a wheel 32 and moved axially by turning a wheel 39 so that a square-section helical rod is cut out. The wheels 32, 39 may be replaced by a single wheel and this may be driven by power. The flanges 28 are then cutoff and the helix stored until required for drawing when it is passed 'through rolls 45, 46, Fig. 10, to give the rod a circular cross-section, a drawing die 47, annealing furnace 48 and drawing dies 49. If a cylinder with thicker walls is cast it may be machined over its entire surface. In a modification a cylinder with external end flanges is cast in a two-part centrifugal mould. In another modification the parts 50, Fig. 8, between the cutters 42, may be adapted to machine the exterior of the cylinder 11 during cutting, the previous external machining being omitted.
Patent GB-1175172-A (GB)
Title: Magnetic Recording.
IPC: G11B20/10
Filed: 1968-01-25
Abstract: 1,175,172. Dynamic magnetic data stores; local circuits. INTERNATIONAL BUSINESS MACHINES CORP. 25 Jan., 1968 [22 March, 1967], No. 3870/68. Headings G4C and G5R. [Also in Division H3] In binary data-recording systems where the information 14 (Fig. 1) is stored as major magnetic transitions, i.e. abrupt changes in the intensity of magnetization 14a, 14b, in a magnetic medium (disc, tape or drum), in order to prevent shifting of the peaks 16a, 16b, on read-out 16, each major transition is followed by a minor transition 18c, 18d (Fig. 2) of lesser magnitude, preferably 15-35%, and opposite polarity so that the read-out peaks 20a, 20b, are substantially symmetrical. The technique is suitable for phase modulation, NRZ and FM recording systems, particularly those which do not fully saturate the entire thickness of the magnetic coating. Two systems are described: Phase encoding (Fig. 4); Binary data A is mixed with clock pulses B in an EXCLUSIVE-OR circuit 46 to produce a phase-encoded signal C. Each positive or negative transition triggers a single shot 72 to open AND-gate 70 for one-sixth of the clock period, thereby adding at 66 a current I H  from source 64 to a current I L  from source 62 to produce the desired recording waveform as 18 (Fig. 2). The waveform, enabled at AND- gate 76, is fed to AND-gates 78, 80 which feed the information to respective ends of a centretapped write head 60 so as to magnetize tape 40 according to the coded information. The recording block 50 may be constituted by a transistor circuit (Fig. 6, not shown; see Division H3). The read-out information is amplified 90, differentiated 92 and limited 94 to produce a waveform G the same as the encoded information at C. This waveform is converted to binary notation by comparison in detector 102 with square wave pulses K derived from a variable frequency clock 96 generating a sawtooth waveform. The clock is synchronized with the output G by comparing the sawtooth in unit 106 with pulses generated in unit 104 whenever an output peak in G occurs. The correction circuits 108 may include a memory based on a trend-of-error to avoid correction based on noise or pulse-crowding effects. The write head 60 may be arranged to erase the tape 40 by connecting a second single-shot (142, Fig. 7, not shown) and inverter (144) between the input 48 and an OR-gate (146) connected between the single-shot 72 and AND- gate 70. The single-shot (142) has a delay or pulse duration longer than a bit interval so that it is energized at least once per interval and no output is supplied until information ceases, whereupon it opens AND-gate 70 to allow passage of I H  + I L  as erase current to the write head. NRZ encoding (Figs. 8, 9, not shown).-The system is identical to Fig. 4 except that the information to be recorded (W) is combined in an AND-gate (150) with pulses (X) and the output fed to a binary trigger (154) which supplies the recording circuit 50.
Patent GB-178242-A (GB)
Title: Improvements in and relating to gas-cooking stoves
IPC: F24C13/00
Filed: 1921-02-03
Abstract: 178,242. Hõusermann, S. Feb. 3, 1921. Gas cooking-stoves comprise a rectangular casing a having openings in the top for utensils, beneath each of which is a burner having a cupshaped jet f telescopically mounted on the gaspipe and upwardly pressed by a spring h. The vessel rests on a projection q on top of the burner, which is thus automatically adjusted in height in relation to the bottom of the vessel. The jet openings r of the burners are adjusted by three screws s which raise or lower the cap f<1>. The air-supply is controlled by raising or lowering the gas jet k by the nut l. A water-heating coil p is provided.
Patent GB-1415380-A (GB)
Title: Device for marking fabric
IPC: D06H1/00
Filed: 1973-01-26
Abstract: 1415380 Marking fabric M E TUSKOS 26 Jan 1973 [28 Jan 1972] 4056/73 Heading DIG A device for marking the lower edge of a fabric panel e.g. a curtain 18 and, optionally, for trimming the edge, comprises a vertical frame 12, 32, 13, 22 having tracks 23, 24 for a trolley 14 movable vertically thereon, means 17 on the trolley for grasping an edge of the fabric panel 18, means 15 to drive the trolley vertically to raise the trolley and the fabric panel thereon and a marker device 81 movable to mark a horizontal line 83 on the panel 18 so that after removal from the frame the panel may be creased along the line. The trolley 14 is attached to chains 64A, 64B driven in a selected direction when a two way switch 51 is actuated and a solenoid operated brake (Fig. 5 not shown) is applied. At either end of its movement the trolley engages a limit switch to stop the motor 15; the upper limit switch (53, Fig. 3 not shown) is movable vertically by a hand wheel 57 to suit the panel 18 to be marked, the switch being connected to a graduated tape 64A which indicates at a window (67A) the height set. A similar tape 64B is attached to the trolley and the readings of the tapes agree when the trolley has risen to operate the upper switch. The Marker device 81 has an air operated nozzle 108 controlled by a solenoid to provide the mark line 83 which is only visible under ultra violet lighting, the device being mounted on a carriage 85 movable by a cable actuated by a motor 96 also controlled by a toggle switch (87) and limit switches. The carriage 85 also carries a cutting device 82 comprising power driven scissors.
Patent GB-922633-A (GB)
Title: Improved tensioning device
Inventor: BRINDLE BRIAN NORMAN
IPC: F16H7/08
Filed: 1961-02-03
Abstract: 922,633. Belt or chain tensioning devices; cams. FORD MOTOR CO. Ltd. Jan. 29, 1962 [Feb. 3, 1961], No. 4107/61. Classes 80 (1) and 80 (3). A belt or chain tensioning device comprises a pivoted arm 4 carrying a rubber or the like contacting member 6 and a snail cam 7 torsionally urged in the direction of increasing radius, the cam being provided with buttress teeth 10 which co-operate with teeth 9 on the arm 4 to prevent contra-rotation of the cam and maintain the setting of the tension.
Patent GB-363215-A (GB)
Title: Process for the productior of sulphates
IPC: C01C1/247
Filed: 1931-02-10
Abstract: The process of the parent Specification is modified in the following respects:--(1) In the production of ammonium sulphate by passing air in a very finely divided state into an aqueous medium containing, or to which is added, ammonium sulphite, the latter comprises a mixture of ammonium sulphite and bisulphite with or without ammonium sulphate obtained by combining ammonia and sulphur dioxide, preferably in the presence of air, in such proportions that about 0,5-1 mols. of sulphur dioxide are present to each mol. of ammonia.  By using these proportions, escape of ammonia during combination of the gases is minimized. The mixed salts are precipitated electrically and are freed of their excess sulphur dioxide, as by addition of ammonia, before or during the oxidation step.  (2) Ammonium sulphate produced in the process is salted out from solution by the addition of solid ammonium sulphite or bisulphite or by treatment with gases containing sulphur dioxide and ammonia, and the mother liquors obtained containing sulphites returned to the process.  (3) In the production of alkali sulphates, di- or tri-sodium or potassium phosphates are added to the aqueous medium to provide the base. The sodium or potassium sulphate formed is crystallized out and the mother liquor used cyclically until it is saturated with mono- or di-alkali phosphate, which is then recovered.
Patent GB-662459-A (GB)
Title: Improvements in or relating to gas-tight frame support for lamps of tubular form
IPC: F21V23/06
Filed: 1949-02-16
Abstract: 662,459. Lamp - holders. HOUILLERES DU BASSIN DU NORD ET DU PAS DE CALAIS. Feb. 16, 1949 [Jan. 6, 1949], No. 4223/49. Class 38 (i). [Also in Croup XI] An insulated connector 108, Fig. 8, for connecting two identical cables 112 providing power and control circuits for a tubular lamp 10 has two apertures 111 for the cables and circular grooves 113, 114 in which the four unearthed conductors of the cables run to connecting screws 105, 135; a single earthed conductor in each cable is laid in a diametrical groove 137 in the connector and each is secured by the screw 115 holding the connector to the metal end cap 101 of the lamp fitting. The cable connector also has two pins 116 adapted to engage sockets 120 in a cylindrical unit 109, Fig. 9, made of insulating material and provided with recesses for an iron-cored coil 118, a starter switch, a condenser and fuses. A central boss on the unit 109 has sockets 122, Fig. 4, receiving the pins 22 on the near end of the lamp and a second pair of sockets 123 near the periphery of the unit engage with pins 125, Fig. 4. on a ring-shaped connector 110 connected to conductors which extend to the other end of the lamp fitting to sockets 132, Fig. 2, in a lampholder 136. A push button switch for remote control of a contactor connecting one of the cables to a three-phase power supply may be embedded in the connector 108 and may be closed automatically by a lug on the unit 109 when the end cap 101 is fully inserted into the fitting. The end cap 101 with cable connector 108 can be detached from the fitting and plugged in gas-tight manner, the connector insuring continuity of the cables.
Patent GB-470342-A (GB)
Title: Improvements in the manufacture of yarns containing staple fibre from yarns composed of continuous filaments
IPC: D01G1/10
Filed: 1936-02-12
Abstract: 470,342. Yarns. BRITISH CELANESE, Ltd., FINLAYSON, D., and LATHAM, L. Feb. 12, 1936, No. 4234. [Class 120 (iii)] Yarns containing staple fibre are made by drawing yarns composed of continuous filaments over a razor edge so that, at intervals along the yarn, some but not all of the fila ments are severed the yarn may be traversed laterally along the razor edge or the edge may be moved so as to be brought intermittentlv into and out of contact with the yarn. As shown, the yarn 1 composed of continuous filaments is drawn from a package 2, through a balloon guide 3, across the razor edge 4, through an oscillating guide 10, around rollers 11, 12, 13 and through guides 17, 18 to the take-up package 19. The edge 4 is provided by a wafer blade provided with a guard having a gap exposing a part of the edge and the blade and guard are fixed to a plate 7, carried by a bar 9 and set at an angle to the yarn 1 ; loose severed filaments are blown away from the edge by a jet of air from a nozzle 34, or removed by a rotating brush or wiper. The roller 11 is driven and drives the rollers 12, 13 which are carried in slots in a bracket 16, the slots for the roller 12 being inclined so that the roller may be dropped therein and carry the yarn over the roller 11, behind the roller 12 and in front of the roller 13. The guide 10 is carried by a wire 20 pivoted to the bracket 16 and carrying a member 22 engaging a disc 23 obliquely mounted on the shaft of the roller 12. In a modification the wafer blade is carried by an electrically vibrated arm and contacts with the yarn in an extreme position of the blade. The yarns may consist of continuous filaments of an organic derivative of cellulose and may be slightly twisted and yarns, the bulk of which has been increased by a twisting operation with setting and removal of the twist, may be given a small reverse twist.
Patent GB-347775-A (GB)
Title: Method for the production of boxes having hinged lids and neck inserts
IPC: B31B105/00
Filed: 1930-02-07
Abstract: 347,775. Shaping box lids. UNIVERSELLE CIGARETTENMASCHINEN FABRIK J. C. MULLER & CO., 48, Zwickauerstrasse, Dresden, Germany. Feb. 7, 1930, No. 4265. Convention date, Feb. 26, 1929. Addition to 319,330, [Class 18, Boxes &c.]. [Class 100 (ii).] In making boxes with hinged lids and neck inserts the lid portion is arched and with the body portions is folded with a neck strip in a single shaping channel by a forming block which has a convex surface corresponding to the arching of the lid. As shown, the lid blanks Zo are fed from a pile 1 to a press 3, 4, 5 which arches them and lugs 6 on the blank feeding plunger 2 engage each arched lid blank and feeds it over the shaping channel 8.
Patent GB-395066-A (GB)
Title: Improvements in or relating to the manufacture of rubber
IPC: C08K5/17
Filed: 1932-02-12
Abstract: Concentrated latex, particularly that to be used for heat-deposition processes such as are described in Specifications 284,608, 292,964, 330,520, [all in Class 70, Indiarubber &c.], and 351,012, are stabilized against thickening, or are reduced in viscosity without diluting the disperse phase, by the addition of small quantities of piperidine, diethylamine, dimethylamine, or like strong organic base, preferably in aqueous solution.  The dispersion may be concentrated centrifuging or creaming, and may be compounded and/or vulcanized.  A suitable quantity is 0,5 per cent by volume of piperidine in an equal weight of water.
Patent GB-970812-A (GB)
Title: Magnetic reading head protector circuit
IPC: H04N5/782
Filed: 1963-02-04
Abstract: 970, 812. Magnetic recording &c. heads, local safety circuits for. SPERRY RAND CORPORATION. Feb. 4, 1963 [Feb. 16, 1962],_No. 4404/63. Heading G5R. [Also in Division H3] A limiter circuit for preventing signals from being fed back from a utilization circuit to a magnetic reading head comprises a pair of diodes serially connected between the reading head and the utilization circuit, the diodes being oppositely connected and so biased that both are normally conducting, one of the diodes becoming non-conductive when a signal from the utilization circuits exceeds a predetermined amplitude. In the drawing, clock pulses are read from a magnetic drum 12 by a head 16 and passed to a utilization circuit through a transformer 18. Transient voltages in  the utilization circuit could erase the clock pulses from drum 12, and this is prevented by diodes 20 and 22 which are normally biased from a source -E so that both conduct. A large transient voltage fed back from transformer 18 will cause one of the diodes to cut off, according to the polarity of the voltage. A further pair of diodes 34 and 36 serve to limit the transient voltage amplitude across diodes 20 and 22, the major portion of the transient voltage being dropped across balancing resistor 38 and transformer 18. The bias source includes an inductor 30 and resistances 26 and 28 to reduce the load on the head 16. Balancing resistor 28 allows the normal currents flowing through diodes 20 and 22 to be made equal.
Patent GB-1527313-A (GB)
Title: Combination fuse especially for fire protection installations
IPC: A62C37/12
Filed: 1977-02-03
Abstract: 1527313 Fire protection fuse O A LARSEN 3 Feb 1977 [13 Feb 1976] 4458/77 Heading A5A A fire protection fuse, e.g. for closing ventilator louvres or activating sprinklers in fire conditions, comprises metal pieces 2A, 2B held by fusible solder 3A, 3B and forming arched portions 17, 18 to hold an electrical resistor 20 insulated from the fuse in circuit via leads 21A, (21B) with a fire detector/ manual control, so that, on heating of 20 by passage of current therethrough, the fuse may be stripped. On separation of 2A and 2B, the leads are torn away from 20 to give open circuit and indicate the tripped condition of the fuse.
Patent GB-200541-A (GB)
Title: Improvements in under-reamers for drilling wells and the like
IPC: E21B10/32
Filed: 1922-02-15
Abstract: 200,541. Faulkner, D. S. Feb. 15, 1922. Bore-hole apparatus. - In an underreamer for drilling wells &c. wherein cutters capable of expansion and contraction are mounted on a body provided with open dove-tailed or shouldered slipways for shanks on the cutters and with a web between the slipways, thrust bearing faces are provided on the bottom of the body normal to its axis and the cutters have bearing faces engaging the thrust bearing faces. As shown, the body 2 has open slipways separated by a web 17, the slipways having shoulders 22, 25 co-operating with shoulders 23, 24 on the cutter shanks 14 which are connected by a key 12 with a spring-pressed mandrel 9. The key has a recess 32 engaged by the mandrel and has bevelled corners 34 to permit removal by tilting. When the cutters are in operative position, inclined bearing faces 15 engage the upper ends of the cutter shanks and horizontal bearing faces 21 engage bearing faces 27 on the cutters. Bevelled faces 19 on the web co-operate with inclined faces 20 on the cutters to spread the latter during upward movement.
Patent GB-234183-A (GB)
Title: Improvements in or relating to compressors for air or gas
IPC: F04B39/08
Filed: 1924-02-22
Abstract: 234,183. Ricardo, H. R. Feb. 22, 1924. Valves, arrangement and actuation of; regulating compression.-A sleeve valve within the cylinder is separate from but directly surrounds the piston which reciprocates within it, and is given a combined reciprocating and rotary motion. The compressor shown in Fig. 1 comprises a water jacketed cylinder formed with one or more inlet ports B and delivery ports C controlled by, a sleeve valve D having ports B<1>, C<1> coacting with the ports B, C. The sleeve is driven by a crank-pin E on a gear wheel F driven from the crank-shaft through wheels G, H<1>, at the same speed of rotation as the crank-shaft. The cylinder head is closed by a water-cooled plug J between which and the cylinder the sleeve slides; the plug carries a junk ring J<1> which covers the inlet sleeve ports B' during the delivery period. The piston is formed with a conical portion L<1> or is cut away opposite the ports B, C, to allow passage of air or gas to or from these ports when the piston face has passed them. A non-return valve M controlled by a spring M<1> and a dashpot device M<2> is mounted in the delivery passage. Unloading is performed by a valve J<2> controlling a port in the cylinder head which opens communication with an additional clearance space in the cylinder head. Fig. 3 shows a modification in which the teeth on the wheels Q<1>, R are related so' that the sleeve P is driven at half the crank-shaft speed. The sleeve is formed midway in its length with inlet slots S adapted to coact with portis, S<1> in the cylinder wall communicating with an inlet chamber S<2>. Two rings of delivery ports T, T<1> in the upper end of the sleeve are also adapted to communicate with grooves T<2>, T<3> forming the ends of transfer passages in the cylinder wall, by which the gas passes to an outlet T<5> in the plug-like cylinder head, controlled by a valve U. Junk rings one on each side of the groove T<3> prevent leakage of compressed gas during the suction stroke. The valve U is controlled by a spring and dash-pot so that back flow of air or gas to the cylinder is prevented when the compressor is unloaded but the valve is unmoved during normal working. Unloading is effected by a valve controlling the passage V to a separate receiver W of relatively large size. A return circuit may also be used for the purpose of unloading.
Patent GB-1085866-A (GB)
Title: Improvements in or relating to frequency synthesisers
Inventor: SOSIN BOLESLAW MARIAN
IPC: H03L7/18
Filed: 1965-02-03
Abstract: 1,085,866. Electronic counters. MARCONI CO. Ltd. Dec. 21, 1965 [Feb. 3, 1965], No. 4768/65. Heading G4A. [Also in Division H3] In a frequency synthesizer the output of a crystal oscillator 1 is frequency multiplied and shaped in units 2 and 3 to provide 32 Mc/s. clock pulses which are fed to the gate 5 and to a divider comprising binary stages 13 dividing down to 1 Mc/s., and pairs of stages such as 17<SP>1</SP> and 18<SP>1</SP> which divide by two and five respectively down to the lowest required frequency interval which may be 1 cycle/s. Each binary divider controls a two-position switch 14 and each divide-by-five divides a five-position switch 17; these switches are shown as relay switches but in practice would be electronic switches. As shown, the free contacts of the switches are connected to manually operable switches 16 which are connected to a positive potential sufficient to open the gate 5 and which are operated to allow a desired number of pulses per unit time to pass through the gate 5.