baber/WOPTO huggingface dataset:
Patent GB-695174-A (GB)
Title: Pipe coupling
Inventor: GOLDSMITH THOMAS LESLIE
IPC: F16L19/02
Filed: 1951-10-05
Abstract: 695,174. Pipe joints. CLARKE-BUILT, Ltd. Oct. 5, 1951, No. 23225/51. Class 99 (i). A butt joint comprises flanges 2 secured to the pipe ends, a T-section resilient packing ring 7 embracing the flanges and having its stem 6 between the flanges and extending so as to be flush with the pipe bore, a rigid ring 14 embracing the packing ring, and coupling members 17 which engage the ring 14 by interrupted screw-threads 18. A bead 15 on the packing ring engages a groove in the ring 14.
Patent GB-989967-A (GB)
Title: Fastener assembly
Inventor: CHRISTIAN JAMES BERTIE LEONARD
IPC: F16B5/06
Filed: 1962-06-18
Abstract: 989,967. Stud and socket fasteners. CARR FASTENER CO. Ltd. April 18, 1963 [June 18, 1962], No. 23367/62. Heading E2B. In a stud and socket fastener the stud member and socket member extending respectively from bases 8, 1, are pushed through apertures in support members b, a and retained in position by sliding rings 6, 11 over the members to grip respectively, the neck 12 of the stud, and beneath the shoulders of the socket. The head 9 of the stud is retained in the fastened position by the inwardly tapered rim 3 of the socket. Both the stud and socket members and retainer rings are made of plastics material,
Patent GB-345604-A (GB)
Title: Improvements in and relating to electric insulators
IPC: H01B17/28
Filed: 1930-08-05
Abstract: 345,604. Insulators. INTERNATIONAL GENERAL ELECTRIC CO., Inc., 120, Broadway, New York, U.S.A.-(Assignees of Allgemeine Elektricitõts- Ges.; 2, Friedrich Karl- Ufer,Berlin.) Aug. 5, 1930, No. 23453. Convention date, Aug. 3, 1929. [Class 36.] In order to prevent the formation of corona in the inner layers of a hard paper insulator having conductive insertions d1 .. d5, the inner insertion d1 is electrically connected to the conductor a which passes through the insulator. The outer insertion d5 may be connected to the earth flange c of the insulator.
Patent GB-207848-A (GB)
Title: Improvements in or relating to the manufacture of bolts
IPC: B21K1/44
Filed: 1922-08-29
Abstract: 207,848. Jackson, W. J. Mellersh-, (Clark Bros. Bolt Co.). Aug. 29, 1922. Forging bolts. - Bolts particularly for use in automobile felloes, are formed by clamping a piece of stock between two axially spaced pairs of dies and then crowding the dies together against spring- pressure in order to upset the stock between them. The bolt 17, Fig. 6 having a neck 16 and a lug or collar 20, is formed from stock 33, Fig. 1, the stock being clamped between two pairs of dies 10, 11 and 29, 30, the upper pair having recesses 14, 15 and 18, 19 corresponding to the parts 16, 20 of the bolt. A heading-tool 34, Fig. 4, then descends, forming the head 21 and closing the dies against springs 25, 26 thereby upsetting the stock to form the neck 16 and lug 20. The bolt is then ejected from the dies and threaded.
Patent GB-1006819-A (GB)
Title: A mining pick
IPC: E21C35/18
Filed: 1964-06-05
Abstract: 1,006,819. Mineral-cutting picks. CHARBONNAGES DE FRANCE. June 5, 1964 [June 20, 1963], No. 23479/64. Heading E1F. To allow of dust suppression by water spraying water is passed along a longitudinal passage 1 through the shank 2 of a mineral-mining pick to enter through a section of reduced diameter a cylindrical central portion 3 of a bore at right angles to the axis of the bore which extends transversely through the head of the pick and has an outwardly divergent portion 32 at each end of the cylindrical portion, the length of which is less than the diameter thereof. The water on entering the central portion is atomized as it strikes the wall of the central portion.
Patent GB-254913-A (GB)
Title: Devices for spraying fuel into the cylinders of internal combustion engines
IPC: F02M63/00
Filed: 1925-09-21
Abstract: 254,913. Krõmling, A. W. Sept. 21, 1925. Cylinders receiving liquid fuel. - Fuel is injected by a pump into a stream of air compressed by a cam-actuated plunger in an auxiliary chamber in communication with the working cylinder. The auxiliary chamber 13 communicates with the working cylinder 24 through a permanently open passage 15 and also through a passage 14 adapted to be closed by the plunger 10 in the chamber 13. The plunger 10 is actuated by a cam 2 through a roller 4 on a lever 5 pivoted at 3, and a strut 9. The lever 5 also actuates the fuel pump plunger 18 through a link 17 adjustable by a governor through linkage 34, 35. The pump forces a measured quantity of fuel through duct 22 into the stream of air flowing through the nozzle passage 15. The lift of the fuelpump and air-compressing plungers is limited by stops 20, 12 respectively, that of the lever 5 by a screw 7, and springs 6, 11, 19 tend to return the parts to their original positions. Cleaning plugs are provided at 31, 32. In a modification, the fuel-pump plunger is driven independently of the plunger 10 which is hollow and contains a filling-piece whereby the degree of compression may be varied. The auxiliady chamber 13 is formed in an easily removable plug in the wall of the cooling jacket, the nozzle passages are formed in exchangeable parts, and the control of the passage 14 by the plunger 10 may be varied by the removal or insertion of plates from or into the head of the plunger where it is struck by the cam.
Patent GB-466389-A (GB)
Title: A process for the sintering of concentrates, ores and the like
IPC: F27B1/08
Filed: 1936-08-28
Abstract: In a modification of the process described in the parent Specification for sintering ores, concentrates, &c., the material is first heated while stationary and is then flung by means of an air or gas current towards a surface where the particles are caught and become cemented together.
Patent GB-586622-A (GB)
Title: Improvements in warp let-off motions of looms for weaving
IPC: D03D49/06
Filed: 1944-11-28
Abstract: 586,622. Loom let-off motions. LAKELAND, H. Nov. 28, 1944, No. 23682. [Class 142 (ii)] The warp passes from the beam A over a roller B carried by arms B<2> pivoting about the axis of the beam, the arms at opposite ends of the beam being interconnected by a shaft C and toothed gearing b, c. The warp is let off positively by a ratchet d<2> and worm gearing d<4>, A<1> actuated from the slay by a push rod E', the stroke of which is reduced, as the roller B swings backwards, by a stop e<4>. For different weights of cloth, tension is applied either by a weight hung directly on an arm b<2>, or by the arrangement shown, or attaching the cord g to the periphery of a pulley on the shaft C, the pulley G being then carried by the loom frame; in the latter arrangement, the warp, after passing over the roller B, may pass round one or two fixed back rests. A handwheel d<6> is provided to enable the warp to be slackened by rotating the beam A until the arms B<2> rest against fixed stops. Specification 432,487 is referred to.
Patent GB-382689-A (GB)
Title: Improvements relating to curtain suspenders
IPC: A47H13/04
Filed: 1931-08-24
Abstract: 382,689. Hooks. HARRISON, S. C., Bradford Street Works, Birmingham. Aug. 24, 1931, No. 23721. [Class 89 (ii).] A curtain hook a is provided with a cross-bar b the ends of which are bent forwardly and upwardly, preferably to form eye c, to guard the entrance of the hook so as to prevent the runner &c. operating cord entering the hook.
Patent GB-1371438-A (GB)
Title: Electrochemical sensor instrumentation
IPC: G01N27/49
Filed: 1972-05-19
Abstract: 1371438 Electro-chemical analysis INSTRUMENTATION LABORATORY Inc 19 May 1972 [21 May 1971] 23722/72 Heading G1N In an arrangement for INDICATING MEMBRANE LEAKAGE in an electro-chemical cell having a permeable membrane between the sample solution and the sensor probe, the voltage from the reference half-cell in the probe is used to monitor the membrane (instead of an external A.C. or D.C. supply as heretofore.) CELL CONSTRUCTION, Fig.1. A cell 10 is shown with two probes 16, 20 having respective membranes 32, 52, for the simultaneous measurement of pO 2  and pCO 2 . A stainless steel electrode 60 is provided at one end of the cell for the membrane monitoring circuits. The sample enters through a side port 12 and exits at end 14. As described the pO 2  sensor 16 has a Pt wire cathode 24 mounted in a glass tube 26 surrounded by an Ag/AgCl sleeve 28. The tip is covered by a polypropylene membrane 32. The pCO 2  sensor uses a combination glass electrode 40 (having an internal Ag/AgCl reference 44) and a co-operating external Ag/AgCl reference electrode 46. The MONITORING CIRCUIT Fig.2 for each sensor membrane is connected between the sensor reference electrode and the earthed stainless steel electrode 60, and comprises an operational amplifier 80 controlling a transistor pair 94, 96 to energise a warning lamp 74 when the membrane resistance falls below a predetermined value. In the case of the pO 2  sensor a bias for the reference electrode 28 is applied to the positive terminal of the operational amplifier.
Patent GB-1500764-A (GB)
Title: Transmitter-receiver devices for use in the ear
IPC: H04R1/10
Filed: 1975-05-31
Abstract: 1500764 Two way transmission using earpieces O TANI 31 May 1975 23726/75 Headings H4J and H4R In ear-plug transducer apparatus, the transducer on the one hand converts sound pressures generated by the voice of the wearer and transmitted via the tympanic membrane and the auditory canal to the transducer where they are converted into corresponding audio frequency electrical signals and on the other hand converts audio frequency electrical signals received by the apparatus for acoustic reception by the wearer. Apparatus 1 (Fig. 1) has a hollow body 2 with an end 2a for insertion into the auditory canal 18. A transducer 6, as shown a piezoelectric bimorph, but which may be of crystal or condenser type (not shown), is fixed to a projection 2b and is coupled to a vibratory diaphragm 8. An air hole 12 reduces the mechanical impedance of the vibratory system and co-operates with an air hole 14 on the other side of the diaphragm 8 to reduce or eliminate ambient noise. Instead of providing two holes 12, 14 parts of the hollow body 2 on each side of the diaphragm 8 may be flexible. An electrostatic or electromagnetic shield 16, which may be coating of conductive paint, metal mesh or a metal shield is preferably provided inside the hollow body 2 and is connected to the earth wire of a lead 10 connected to the transducer 6. The apparatus may be used for "hands free" telephone conversation, in transceivers and for underwater communication. In a two party transmission system each party is provided with a transmitting amplifier AMP1 or AMP3 (Fig. 7), a receiving amplifier AMP2 or AMP4, a control circuit CC 1 or CC2 and switches SW1, SW2 or SW3, SW4. In a passive condition in which no sound is picked up the amplifiers AMP 1 and AMP3, the control circuits CC1 and CC2 and the switches SW1 and SW3 are in operative condition whereas the amplifiers AMP2 and AMP4 and switches SW2 and SW4 are in non- operative condition. A voice frequency electrical signal emitted by right hand apparatus 1 actuates the control circuit CC2 of the other apparatus 1 to cut off the transmitting amplifier AMP3 of the other apparatus and to actuate the corresponding receiving amplifier AMP4, thereby conditioning the other apparatus for reception of the voice frequency signal. All the circuit members are returned to the state corresponding to a passive condition upon termination of the voice frequency signal. A voice frequency electrical signal subsequently emitted by left hand apparatus 1 conditions the circuit in an analogous manner.
Patent GB-1063004-A (GB)
Title: Compacting of tungsten powder
IPC: B22F3/18
Filed: 1965-06-04
Abstract: 1,063,004. Rolling tungsten powder. UNION CARBIDE CORPORATION. June 4, 1965 [Aug. 28, 1964], No. 23861/65. Heading B5A. Tungsten powder is rolled into a corrugated compact having a density of at least 14À5  gms./c.c. by a pair of co-operating corrugated rollers. The compact has a thickness of 1/ 16 -1/ 4  inch and has 8 to 16 ridges per foot, the depth of the ridges being from 1/ 4 -5 /8  inch. The starting material is in the range 1-20 microns preferably and it is stated that, upon crushing the compact, only a small proportion (c. 6%) of the resultant particles are below 200 mesh thus giving a high bulk density. The compact may be sintered to increase its density further if required.
Patent GB-709174-A (GB)
Title: Apparatus for clarification treatment of solids-carrying liquids
Inventor: TALBOT HENRY JOHN
IPC: B01D21/06
Filed: 1952-09-24
Abstract: 709,174. Treating sewage ; softening water; gravity-separation apparatus. DORR CO. Sept. 24, 1952, No. 23947/52. Classes 46 and 111 Apparatus in which a clarification compartment surrounds a flocculation (or equivalent) compartment, and such as is exemplified in Specification 532,002, is characterized chiefly in that the bottom of the central compartment is at a lower level than that of the surrounding clarification compartment. Scrapers 36 operating on the bottom of a clarification zone Z2 are suspended directly from a truss arm 25 driven by a motor 29, and scrapers 34 operating on the bottom of a flocculating zone Z1 are attached to a cage 30 surrounding, and rotating upon a thrust bearing 31 on the top of, a central feed pier 13. The inner end of the truss 25 is connected to the cage 30 and thus to the bearing 31. Upstanding from the scraper arms 32 and 33 are paddle members 37 and between them are rotated at a greater speed paddle members 38 depending from arms 42 and 43 secured to a cage structure 41 mounted on a bearing 40 on top of the cage 30 and driven through a bevel gear 50 by a pinion 49 driven in turn by a motor 44 on the truss 25. Liquid fed into the pier 13 flows outwards at its top and passes downwards into the flocculation zone proper, defined generally by the overlapping portions O of the paddle members and, at the bottom, also by a radial shelf 23. Some solids settle ; the liquid carrying the remainder passes through slots 19 into the clarification zone Z2 from which clarified liquid overflows at E. Solids from both zones eventually reach a sump 24. In Fig. 1a (not shown) the paddles are dispensed with and, instead, radial perforated aerating pipes are suspended from the truss 25 in the inner compartment and are fed by a motor-driven blower located on the truss arm 25.
Patent GB-260961-A (GB)
Title: Vehicle tire
IPC: B60C5/12
Filed: 1926-09-28
Abstract: 260,961. Linwood, H. Nov. 4, 1925, [Convention date]. Tyre attachments to rims.-A " single-tube " tyre has interengaging edges 3, 4 one of which is formed (or fitted) with a soft rubber flap 9 adapted to seat in a corresponding recess 10 adjacent the other edge. In the construction shown in Fig. 1, a fibre or aluminium strip 11 secured to the edge 4 is arranged to enter a groove 12 in the edge 3. In modifications, the abutting faces of the tyre edges are formed with mating curved surfaces. Fig. 3 shows these faces formed with corrugations 22, 23.
Patent GB-1513701-A (GB)
Title: Watersoluble dye composition
IPC: C09B67/38
Filed: 1976-06-10
Abstract: 1513701 Water-soluble dye compositions CIBAGEIGY AG 10 June 1976 [11 June 1975] 23985/76 Heading C4A [Also in Division C3] A water-soluble composition comprises (a) 0À01% to 40% by weight of a dye which is soluble in water-miscible solvents and insoluble in water alone; (b) 1À0% to 88% by weight of a watermiscible organic. solvent or mixture of such solvents which is inert to the dye; (c) 0À1% to 89% by weight of a water-soluble resin and (d) 10% to 89% by weight water; and optionally, up to 10% by weight of a basic compound to raise the pH of the solution to about 10.
Patent GB-981553-A (GB)
Title: Improvements relating to electric switches
Inventor: SIBBALD FREDERICK ROY
IPC: H01H23/16
Filed: 1960-07-08
Abstract: 981,553. Switches with magnetic snap action; press button retractive switches. HOOVER Ltd. Sept. 25, 1961 [July 8, 1960], No. 23994/60. Heading H2B. A switch has a contact carrying armature 11 movable with snap-action between a position in which it bridges contact forming polepieces 14 of an electrically insulating permanent magnet 12 and a position spaced therefrom. The armature 11 is moved with lost motion by a pivoted lever 18. In a modification (not shown) lever 18 may be replaced by a sliding button. The abutting surfaces of the armature and polepieces are silvered. In another embodiment (Fig. 3, not shown) the armature carries separate contacts engaging phosphor bronze blade contacts. The armature is directly hand actuated. The Provisional Specification also describes a push switch in which the armature is mounted on the push button spring urged to the off position.
Patent GB-1520976-A (GB)
Title: Photographic emulsions
IPC: G03C1/09
Filed: 1976-06-10
Abstract: 1520976 Photographic emulsion preparation CIBA-GEIGY AG 31 May 1977 [10 June 1976] 24001/76 Heading G2C A method of preparing a silver halide emulsion of the twinned type comprises the steps of (a) forming in a colloid dispersing medium silver halide crystals containing at least 90 mole % iodide, (b) mixing in the dispersing medium containing the silver halide crystals an aqueous solution of a silver salt and an aqueous solution of an alkali metal or ammonium bromide or chloride or mixtures thereof so forming twinned silver halide crystals containing iodide and the halide being added, (c) adding a silver halide solvent to the dispersing medium and so causing the growth of the twinned crystals by Ostwald ripening and optionally (d) then causing the twinned crystals to increase in size by adding to the colloidal dispersion further aqueous silver salt solution and further alkali metal or ammonium halide and then finally optionally (e) removing the water-soluble salts formed and chemically sensitizing the emulsion. In step (b), a PAg of 5À0 to 11À0 and a temperature from 35 to 90 C are suitable. The final emulsion may contain 0À01 to 20 mole % of the total silver halide. In step (d) the additions may be made at such a rate that no further nucleation occurs. Step (a) can be effected while maintaining the temperature at least at 60C and the pAg in the range of 11 to 13.
Patent GB-831977-A (GB)
Title: Tear strip applying mechanism for use in conjunction with rotary parcelling or wrapping machines
IPC: B65B61/18
Filed: 1956-08-03
Abstract: 831,977. Applying tear strips to wrappers. GRIMSHAW, J. P., and AYERS GRIMSHAW Ltd. July 16, 1957, [Aug. 3, 1956], No. 24018/56. Class 94(1). [Also in Group XV] Mechanism for applying adhesive tear strip to wrapping material comprises a horizontal table 4, Figs. 1, 2, over which the material 1 is intermittently fed from a reel 8 and a rotatable carrier wheel 18 for the tear strip supported to turn on a vertical plane above the table and actuated intermittently so as to be operative during the periods when the material 1 is stationary on the table 4. The carrier 18 is provided with a plurality of tear strip reels 19 rotatable about axes spaced equidistantly around the carrier, each reel being supported by an arm 24 which is spring-loaded radially outwardly of the carrier and which carries at its outer end a roller 27. The strip passes around the roller 27 which applies it across the width of the wrapping material during rotation of the carrier, the strip being taken from each reel in turn as the reels move consecutively into the operative position. A solenoid operated cutting knife 32 severs the tear strip after the required length has been applied, movement of this knife being also transmitted to a pair of side knives for nicking the wrapping material at both sides of the tear strip to facilitate tearing when the strip is pulled. Spring-urged cam operated gripper 31 serve to hold the wrapping material on the table 4 during application of the tear strip. Supported at one end of the table 4 is a cam 30 which is engaged by an additional roller at the outer end of each arm 24 just prior to the engagement of the rollers 27 with the wrapping material and this ensures that movement of the wrapping material is unimpeded. A plunger 34, Fig. 7 (not shown), operated by a solenoid 35 is provided to fold the end of the tear strip back upon itself so as to prevent it sticking to an adjacent parcel. Specification 692,796 is referred to.
Patent GB-817614-A (GB)
Title: Filaments of acrylonitrile polymers
Inventor: SEIBERT HEINRICH
IPC: D01F6/18
Filed: 1956-08-03
Abstract: Acrylonitrile polymers are spun-dyed by dissolving in the spinning solution for the production of filaments, e.g. a dimethyl formamide solution, a basic dyestuff having a definite affinity for the acrylonitrile polymer, and then spinning the solution.  Basic dyestuffs specified are the condensation products of 1,3,3-trimethyl - 2 - methyleneindoline - omega - aldehyde with 6-amino-2-methylbenzthiazole and alpha-methyl indole, the condensation products of 1,3,3-trimethyl-2-methylene-indoline with 1-methyl-2-phenylindole-3-aldehyde, 4 - chlorethylmethylamino - benzaldehyde, 2-methyl - 4 - chlorethylethylamino - benzaldehyde and N - ethyl - 3 - carbazoaldehyde, the dyestuffs obtained by heating aniline with nitrobenzene in the presence of iron salts and either extracting with dilute hydrochloric acid or sulphonating with concentrated sulphuric acid and the dyestuffs described in Specification 784,843, [Group IV (c)].  The spinning solution may also contain a pigment such as carbon black. Specification 684,139, [Group IV (c)], also is referred to.
Patent GB-1345462-A (GB)
Title: Non-rotating depth controller paravane for seismic cables
IPC: G01V1/38
Filed: 1972-05-23
Abstract: 1345462 Marine stabilizers WHITEHALL ELECTRONICS CORP 23 May 1972 [25 Jan 1972] 24069/72 Heading B7M [Also in Division G3] A paravane 15 is non-rotatably secured to a seisimic survey cable 16 being towed underwater. An electrical depth command signal is compared with the output from a water pressure sensor to produce a control signal causing vanes 30 to be rotated so that the paravane dives or rises to the required depth. Gravity-operated potentiometers 42X, 42Y apportion the control signal between the X and Y vanes so that the depth is controlled independently of the axial orientation of the paravane without causing rotation relative to the yaw axis.
Patent GB-1140445-A (GB)
Title: Vertical denuders
Inventor: SHEPPARD GEOFFREY THOMAS
IPC: C25B1/42
Filed: 1966-05-31
Abstract: 1,140,445. Caustic alkali solution. IMPERIAL CHEMICAL INDUSTRIES Ltd. 2 May, 1967 [31 May, 1966], No. 24224/66. Heading C1A. [Also in Division B1] The production of caustic alkali by decomposing alkali metal amalgam with water is performed in an apparatus which comprises a bed of graphite pieces held in place in a container by a foraminate holding down plate which is resilient. The resilient plate preferably has a high percentage ratio of open cross-sectional area to total cross-sectional area, e.g. greater than 90%, and a pore size which is small compared to the particle size of the packing. For example, a pore size of less than 2 mm. diameter is suitable for conventional graphite packing. The plate may consist of a filamentary material, such as metal wire (e.g. stainless steel) or synthetic fibre, typically in the form of a woven or knitted mesh. A preferred embodiment comprises a flat strip of mesh, corrugated across its width in a herring- bone pattern, which is coiled into a tight spiral to form the resilient plate. Plates may be from 1 to 3 inches in depth.