baber/WOPTO huggingface dataset:
Patent GB-657379-A (GB)
Title: Improvements in electric cables
IPC: H01B7/04
Filed: 1949-02-18
Abstract: 657,379. Cables. CABLE MAKERS AUSTRALIA PROPRIETARY, Ltd. Feb. 18, 1949, No. 4431. Convention date, March 12, 1948. [Class 36] An electric trailing cable comprises a core 1 of elastic conductive material in contact with an earthing conductor 4 and insulated power conductor 3, the earthing conductor consisting of a flexible core 8 having a conducting covering 7. The conductors 3, 4, which have approximately the same external diameter, are laid around the core 1 and enclosed in a conductive screen 2. The core 1 and screen 2 are preferably made of conductive rubber, while the core 8 consistsof textile, rubber, plastic or the like and is preferably coloured for identification purposes. The cable is completed by an outer abrasion-resistant sheath 9 of tough rubber or the like, which may be applied over a layer of tape 10. The sheaths 2 and 9 and the core 1 may be reinforced with cords or canvas. Specification 526,895 is referred to.
Patent GB-103561-A (GB)
Title: Combined Gas Cooler and Washer.
Inventor: CHRISTOPHER JOHN EDWARD
IPC: C10K1/04
Filed: 1916-03-27
Abstract: 103,561. Christopher, J. E. March 27, 1916. Washers.-A gas cooler and washer comprises groups of tubes arranged concentrically, and the inner tube of each group being supplied with liquid which passes through apertures to form films on the surfaces between the inner and outer tubes and on the outer surface of the outer tube, such films being in direct contact with the gas under treatment. In the apparatus shown, each group consists of two tubes b, c with grooved caps l provided with openings e, through which gas from the inlet d passes to the space between the tubes and to the outlet h. The gas may pass in the reverse direction. Water, oil, or other liquid, supplied under pressure to a chamber k passes up the tubes b and through perforations b<1> therein and apertures m in the caps l to spray the gas and moisten the contact surfaces of the tubes. In a modification, a further tube with similar openings e surrounds the tube c, which has holes opposite the perforations b<1> to allow the passage of the liquid.
Patent GB-808734-A (GB)
Title: Unipolar "field-effect" transistor
IPC: H01L29/78
Filed: 1956-02-14
Abstract: 808,734. Transistors; electrolytic jet-etching and jet-plating. TESZNER, S. Feb. 14, 1956 [Feb. 15, 1955; Feb. 4, 1956], No. 4540/56. Classes 37 and 41. A field effect transistor consists of a semiconductor rod 1 (Fig. 2), having metallic layers 5 and 6 on each end constituting source and drain electrodes, and a thinned central cylindrical portion 4 to 16 mils long and 2 to 6 mils in diameter, bearing a metallic layer 7 which constitutes the gate electrode and may be separated from the semi-conductor by a thininsulating layer. As shown in Fig. 2, signals from source B vary the potential of the gate electrode 7 which consists of a reverse biased area rectifying contact, to provide amplified signals in load 11. Fig. 10 shows apparatus for manufacturing the device in which an N- type germanium rod 18 of 3 to 30 ohm cms. resistivity is soldered to a nickel or bronze rod 19 forming one electrode which is mounted for rotation in a chuck 22. The other end of rod 18 is connected to a wire 24 engaging a droplet 25 of mercury so that current may be passed through rod 18 in series with a relay 33. Nozzle 28 associated with an etching solution H 2 SO 4  in container 30 operates to electrolytically etch away the centre portion of rod 18 while current from source 37 is passed between the rod and the electrolyte until the resistance along rod 18 is sufficient to de-energize relay 33. Contacts 55 of relay 33 when released reverse the polarity of source 37 and energize nozzle 29 which is associated with an electroplating solution of In 2 (SO 4 ) 3  plus H 2 SO 4  in container 31 so that the central portion is plated with a thin indium layer. Potentiometer 56 associated with source 37 is automatically varied so that the current is steadily reduced during the etching process. The metallic layer of the gate electrode may consist of In, Sn, Zn, Au, Pt or Woods metal and the semi-conductor body of Ge, Si or an A 3 B 5  intermetallic compound. If an insulating layer is provided between the semi-conductor and the gate electrode layer this may consist of an epoxy resin, or a layer of oxide may be produced by treatment of the semi-conductor surface with a solution of hydrogen peroxide and sodium carbonate. The advantages of a cylindrically shaped body according to the invention are compared with those of annular (Fig. 4) and rectangular (Fig. 5) shaped bodies. Fig. 14 shows the semi-conductor body 1 with electrodes 19 and 24 encased in a housing of epoxy resin and containing inert gas. Connection to the gate electrode is made by means of gold wire 43 and terminal 51.
Patent GB-733711-A (GB)
Title: Improvements in and relating to photo-cells
Inventor: SCARNELL PETER WILLIAM
IPC: H01J40/16
Filed: 1953-02-18
Abstract: 733,711. Photo-electric cells. MULLARD RADIO VALVE CO., Ltd. May 11, 1954 [Feb. 18, 1953], No. 4544/53. Class 39 (1). In a photo-electric cell having a sheet cathode 5 of part-cylindrical form, the anode consists of a mesh sheet 7 lying in a plane through the centre of curvature of the cathode, at right angles to the diametral or equivalent plane bounding the cathode. The spacing between the free edge of the anode and the cathode surface should be 1-2 mm. The cell may be evacuated, or have an inert gas filling at low pressure, so that the current is still predominantly electronic and not ionic. Argon, up to 10 microns, but preferably not exceeding 5, is suggested. It is stated that this construction reduces an undesirable discontinuity in the anode current/anode voltage curve.
Patent GB-720728-A (GB)
Title: Improvements relating to non-return valves
IPC: F16K15/14
Filed: 1953-02-18
Abstract: 720,728. Non-return valves. BAUCH, E. Feb. 18, 1953 [Feb. 21, 1952], No. 4605/53. Class 135. A non-return valve for use in autogenous welding apparatus consists of a two-part casing 1, 2 housing a rubber lip valve member 6, i.e. a flattened tubular member, which fits over a spigot 4 formed in a recess 3 bounded by an externallythreaded portion of the part 1. Instead of being screwed together the parts 1, 2 may have interengaging conical surfaces. The valve member is secured on the spigot 4 by engagement within an undercut recess 5. The part 2 may carry a nut and nipple for connection to the welding torch instead of the connection for a tube as shown.
Patent GB-397134-A (GB)
Title: Improved method of conditioning magnetic materials
IPC: C22F1/10
Filed: 1932-02-16
Abstract: Magnetic material comprising iron, nickel, and cobalt with or without small quantities of other substances, e.g. molybdenum or other elements referred to in Specification 323,222, [Class 72, Iron &c.], is conditioned by subjecting it to an intense magnetic field and then heating to 400-600 DEG  C., preferably for at least 8 hours.  The material may be annealed before subjecting it to the magnetic field. The material may be conditioned in the form of strip helically wound on a conducting core or of a core for a conducting winding or in a finely divided condition.  In an example, a ring of spirally wound tape of an alloy containing 45 per cent of nickel, 25 of cobalt, 23 of iron, and 7 of molybdenum was annealed for an hour at 700 DEG  C., strongly magnetized and then heated for 48 hours at 440 DEG  C. Specification 273,638, [Class 82 (i), Metals, Extracting &c.], also is referred to.
Patent GB-1479107-A (GB)
Title: Supply conduit for connection between a spray gun and air
IPC: B05B7/24
Filed: 1975-02-04
Abstract: 1479107 Pneumatic spray guns WATSCO INC 4 Feb 1975 [17 June 1974] 4652/75 Heading B2F [Also in Division F2] A supply conduit 10 for connection between  a pneumatic spray gun 36 for applying hair  setting fluids and a supply container 11 comprises fluids of side-by-side flexible conduit members for compressed air and spray material respectively with a connector body 15, 17 at each end, each connector body having a pair of side-by-side through openings each containing a tubular receptacle member (not shown) rotatably mounted therein with the respective conduit member pushed onto one end of the tubular receptacle member, and the other end thereof enclosing an O-ring seal into which may be received male tubular connector members as 44, on the spray gun 36 or container 11, the connector body 15 having a slotted tongue portion thereon for engagement with a post 56 on the container 11, and the connector body 17 having a catch portion 32 thereon for engagement beneath a recess 41 on the spray gun 36, a tongue portion 19 locating within a recess 42 and projections 29, 30, 31 allowing rocking movement of the body 17 for release of the body from the spray gun when required.
Patent GB-891959-A (GB)
Title: Improvements in or relating to time assignment speech interpolation systems
IPC: H04J3/17
Filed: 1960-02-10
Abstract: 891,959. TASI systems. WESTERN ELECTRIC CO. Inc. Feb. 10, 1960 [Feb. 25, 1959], No. 4684/60. Class 40 (4). In a TASI system, a speech detector is provided which discriminates against short duration noise pulses as compared with the longer duration " talk-spurts." Means is also provided to discriminate against echoes due to slow action or insufficient attenuation by echo suppressors. As shown, outgoing speech is applied directly to speech detector A and after a fixed delay #t to the speech detector B, the delay being greater than the expected duration of any noise pulse. The outputs of A and B feed an AND gate. For noise pulses the A output terminates before the B output commences and the AND gate produces no output. For talk-spurts, however, coincidence will occur and the output from the AND gate is fed back to enable a pulse stretcher which lengthens the output from A by an amount #t. Thus the ultimate output from the AND gate is equal to the duration of the talk-spurt (less any interval required for overcoming a threshhold value in the speech detectors). The AND gate operates a gate pulse generator which produces a pulse of duration equal to that of the AND gate output plus a small hang-over time to prevent terminal clipping. This output feeds the TASI control circuit which effects the switching of the transmining line to a suitable transmission channel, e.g. as described in Specification 845,174. The speech input to the TASI switch is taken from the delay circuit #t, since the AND gate output is delayed by that amount. To prevent echoes from operating the speech detector, the received signal is taken, preferably from the talker side of the echo-suppressor and fed via gate D to a speech detector C whose output inhibits gate E and hence disables the speech detector A. To prevent incoming speech from interrupting an existing outgoing transmission, the gate pulse generator output is caused to inhibit gate D and so disable the speech detector C. Specification 245,554 also is referred to.
Patent GB-793481-A (GB)
Title: Copolymers of diallyl phthalate and of vinylidene chloride
IPC: C08F218/18
Filed: 1956-02-15
Abstract: Binary copolymers containing up to 50 per cent of combined vinylidene chloride are prepared by polymerizing diallyl phthalate and vinylidene chloride in an inert solvent, part of the vinylidene chloride being present in the initial reaction mixture and the remainder being added by stages as the polymerization progresses. The inert solvent may be benzene, acetone, dioxane, carbon tetrachloride or 1:2-dichlorethane.  As catalyst there may be used azodiisobutyronitrile or benzoyl peroxide.  After removal of solvent the product consists of a low molecular weight copolymer in solution in a small quantity of diallyl phthalate, which may be hardened by the action of heat and/or a catalyst, such as tertiary butyl perbenzoate, or by polymerization with another monomer such as diallyl maleate.
Patent GB-747886-A (GB)
Title: Improvements in or relating to ships hull constructions
IPC: B63B3/56
Filed: 1954-02-18
Abstract: 747,886. Hull construction. ALBIACH, V. Feb. 18, 1954 [Feb. 18, 1953], No. 4864/54. Addition to 701,759. Class 113. In a ship's hull construction as claimed in any of the Claims of the parent Specification, the continuity of a divided longitudinal (or transverse) girder passing through a transverse (or longitudinal) bulkhead is preserved by means of a connecting member or assembly connected to the two ends of the girder and passing through the bulkhead, the effective crosssectional area of the connecting member or assembly together with the part of the plating (or deck, as the case may be) between the two ends of the girder being at least equal to or greater than the normal effective cross-sectional area of the girder and associated plating (or deck), while the effective centres of area of the two cross sections are arranged to lie at approximately the same distance from the plating or deck. Various embodiments are described. Figs. 4 and 5 show one of the simplest. The ends 21 of a T-section longitudinal, cut short on either side of a bulkhead 22, are shaped downwards so that a connecting member 26 fitted above the longitudinal lies at such a height that the effective centre of area of the composite section consisting of the connecting element 26 and the associated plating 23 is approximately at the same height as the effective centre of area of the longitudinal and associated plating at its normal section. The thick plate connecting element 26 passes through a flange 27 which is welded to it and to the bulkhead. Stiffeners 28 join the flanges of the longitudinal to the plating.
Patent GB-1513681-A (GB)
Title: Sodium-sulphur cells
IPC: H01M4/64
Filed: 1975-02-12
Abstract: 1513681 Sodium-sulphur cells ELECTRICITY COUNCIL 12 Feb 1975 [15 Feb 1974] 4884/75 Divided out of 1455031 Heading H1B A sodium-sulphur cell comprises a current collector in contact with the cathodic reactant and formed of an impermeable carbon or graphite tube 21 containing a deformable metallic conductor 23 which contacts the internal surface of the tube. A rod 22 of A1, Cu or Fe is positioned in the tube and the conductor 23 may be steel wool but is preferably a tin-lead alloy such as soft solder which is liquid at the operational temperature of the cell. A solid electrolyte tube 10 of #-alumina separates a sulphur electrode 11 from a sodium electrode 12. A loose packing of graphite felt 25 increases the conductivity of the sulphur electrode and a region 26 allows for expansion of the electrode as the cell discharges. Seals 35, 41 are provided at the top of a stainless steel housing 13 and the tube 21 is sealed by a plug 30. Modifications are described for operating the cell in inverted and horizontal positions, and the tube 21 may be provided with longitudinal, circumferential or helical grooves to allow expansion of the sulphur electrode. In Fig. 5 (not shown) the cell has three electrolyte tubes containing sodium and surrounded by the sulphur electrode material in which eight parallel connected tubular current collectors are positioned.
Patent GB-468351-A (GB)
Title: Improvements in cam operated valves
IPC: B30B15/32
Filed: 1937-02-18
Abstract: 468,351. Air-blast valves in punch presses etc.; brackets. BURGESS, A. F. (Littell Machine Co., F. J.) Feb. 18, 1937, No. 4911. [Class 135] [Also in Groups XIV, XVI, and XXII] A cam-operated valve, particularly for controlling delivery of a blast of air to the work in a punch press or other machine, is mounted with various adjustments to permit its ready location with respect to the cam. The valve 18 admits pressure air from pipe 76 to pipe 17 leading to the nozzle, on actuation of its stem 20 through a lever 23 which is pivoted at 24 on the valve body and is rotated by the cam acting on roller 25. The device as a whole is secured on a standard 38, with rotary adjustment in two planes, by a split sleeve 30, the bolt 33 of which passing through the two ends thereof passes also through a second split sleeve 37, on the standard 38. The standard 38 further is mounted on the machine frame by a friction ball-and-socket joint at one end.
Patent GB-177151-A (GB)
Title: Improvements in drives for leather measuring machines
IPC: G01B5/26
Filed: 1922-02-21
Abstract: 177,151. Krupp Akt.-Ges., F. March 18, 1921, [Convention date]. Surface areas, computing.-In leather-measuring machines of the Sawyer type, the driving mechanism for the feeding-roller A is such that the measuring operation ceases when the stretching of the leather becomes excessive. A disc D, loose on the shalt a<1> of the feeding-roller A which it drives through a clutch M, is driven frictionally from the pulley C by leather discs F, G on either side which abut respectively against the pulley and a disc H connected thereto by screw bolts J, the frictional pressure being adjustable by springs K between the bolt-heads and the pulley.
Patent GB-123857-A (GB)
Title: Improvements in Methods and Apparatus for Separating and Purifying Creosote Oil.
Inventor: CRABB WALTER
IPC: C10C1/18
Filed: 1918-03-22
Abstract: 123,857. Crabb, W. March 22, 1918. Freely-flowing material mixed in conduits. - Creosot oil is mixed with sulphuric acid by passing through an inclined horseshoe-shaped leadlined trough B provided with baffles F.
Patent GB-1486115-A (GB)
Title: Magnetic alloys
IPC: G03G5/16
Filed: 1975-02-06
Abstract: 1486115 Pt-Ni-Co magnetic alloy SONY CORP 6 Feb 1975 [13 Feb 1974] 5163/75 Heading C7A A magnetic alloy consisting of platinum, nickel and cobalt in atomic proportions Pt x (Niy Co 1-y ) 1-x  where x is not less than 0À45 and not more than 0À55 and y is not less than 0À65 and not more than 0À86. The alloy may be used as an intermediate carrier in thermal and magnetic printing of video signals in which processes it is heated to 130‹C or 210‹C.
Patent GB-1031818-A (GB)
Title: A pitch control mechanism for helicopters
IPC: B64C27/32
Filed: 1964-02-07
Abstract: 1,031,818. Fluid pressure servomotor system. I. S. DMITRIEV, S. J. ESAULOV and J. V. KOROBOV. Feb. 7, 1964, No. 5207/64. Heading G3P. A control mechanism, for varying the pitch of the blades of a helicopter, comprises a pistoncylinder device 7, connected to the pitch changing mechanism 9 through a rod 6 and bell-crank lever 8. The device 7 is controlled by a valve 17 connected through a lever 12-13 to a servo device 15 of an autopilot and through link 11, lever 4-5 and link 3 to a pilot's control lever 1. Feedback is provided through lever 4-5, tank 11 and lever 12- 13. Rotation of the lever 12-13 by the feedback mechanism is limited by spring stops 19, 20 such when a point 18 of the lever 12-13 engages one of these stops, the feedback lever 4-5 causes movement of the control lever 1 thus allowing the valve 17 to remain partially open. If a force is applied to the lever 1 this will actuate the valve 17 to override the autopilot control.
Patent GB-720033-A (GB)
Title: A slip tap for casting pottery articles
Inventor: JONES SAMUEL
IPC: E04F21/12
Filed: 1952-02-28
Abstract: 720,033. Nozzles; valves. EDWARDS & JONES, Ltd. Feb. 16, 1953 [Feb. 28, 1952], No. 5219/52. Classes 69 (3) and 135. A slip tap for casting pottery articles is in the form of a hand-gun 10 to which the liquid slip is supplied at 11, and the slip passes through a cylindrical wire gauze filter 13 within a hollow slotted plug 14 to a valve chamber 16. The valve 18 is normally held closed by a spring 26 and is opened by a trigger 19 to allow the flow of slip through a spout 17.
Patent GB-432696-A (GB)
Title: Reamer for earth boring drills
IPC: E21B10/30
Filed: 1935-02-18
Abstract: 432,696. Earth-boring tools. REED, C. E., 4114, E. Central Avenue, Wichita, Kansas, U.S.A. Feb. 18, 1935, No. 5230. Convention date, March 5, 1934. [Class 85] In an earth-boring tool, the body 1 has recesses 2 to receive rolling reamer cutters 8 and auxiliary recesses 3 receiving bearing blocks 5 for the cutter spindle 4, or one of the blocks 5 may be integral with the spindle ; the sides of the blocks 5 and auxiliary recesses 3 have registering grooves 6, 7 and U-shaped keys 9, with one leg tapered, are inserted in the grooves 6, 7, to lock the blocks. Set screws 10, with ends entering slots 11, lock the keys 9. Tips 12 on the blocks 5 seat on the ends of the recesses 2.
Patent GB-124199-A (GB)
Title: Improved Method and Apparatus for Producing a Regular Progression of Materials in Vertical Ovens.
IPC: C10B1/04
Filed: 1919-03-03
Abstract: 124,199. Soc. du Four Vertical Continu. March 1, 1918, [Convention date]. Charging.- In vertical ovens or retorts which are worked semi-continuously, and in which the sealing of the ovens at the upper end is effected solely by the pulverulent material of the charge, a ram E is provided for compressing the charge and forcing it regularly down the ovens, the ram being of such size and shape that it can enter the oven or an upward extension B thereof. The material is fed into a reservoir C common to a battery of ovens, and in this reservoir works the ram E which can be moved into position over any particularly oven. When there is a considerable depth of material in the reservoir a temporary extension I is fitted to the oven mouth.
Patent GB-703525-A (GB)
Title: Improvements in or relating to fluid pressure actuated blast guns
Inventor: NESHAM JOHN EDWARD CROSSLEY
IPC: F28G1/16
Filed: 1952-02-28
Abstract: 703,525. Soot &c. blowers. AIRNESCO PRODUCTS, Ltd. Feb. 28, 1952, No. 5298/52. Addition to 686,842. Class 99 (2). [Also in Group XXIX] In the blast gun described in the parent Specification wherein a valve V is actuated by a spring-loaded piston P reciprocated in a cylinder C to release pressure fluid from a chamber B in a series of blasts, control of the admission of the pressure fluid to the chamber and the cylinder is effected by a valve 201 remote from the chamber and mounted in the pressure fluid supply line 200. The inlet orifice I of the cylinder may be offset with respect to the cylinder axis. The cylinder block may have a tapered face 207 for engagement with a seat 208 on the interior of the end cap 209. The gun may be used for trimming coal.
Patent GB-526420-A (GB)
Title: Improvements in toy bridges
IPC: A63H3/52
Filed: 1939-02-17
Abstract: 526,420. Toy bridges. KOHNSTAM, E. Feb. 17, 1939, No. 5327. [Class 132 (iii)] A toy bridge embodies a movable span and a depressible track element which forms an approach to the bridge and which is mechanically coupled to the span to operate the same automatically when the track element is depressed by a vehicle passing over it. A vehicle running on to a depressible track element 12 lowers the span leaf 9 on that side of the bridge, an extension 17 of the span engaging arm 18 pivoted at 19 to lift counterweights 20 and to operate the other arm 18, extension 17, and span 9, ears 10 on the one span fitting over the side walls 11 of the other. The weights 20 restore the span leaves to raised positions when the vehicle leaves the bridge section. Manually controlled vehicle arresting devices and signals may be incorporated ; the track may pass beneath the span instead of over it.
Patent GB-816788-A (GB)
Title: Improvements in or relating to typographical composing machines
IPC: B41B11/18
Filed: 1958-02-19
Abstract: 816,788. Type-bar-making machines. MERGENTHALER LINOTYPE CO. Feb. 19; 1958 [April 2, 1957], No. 5352/58. Class, 100(3) Assembling-apparatus. In a typographical line-casting machine, means is provided to direct an air blast against a matrix in its travel from the conveyer belt to the assembler to aid its being properly advanced into the assembler. Air from a nozzle 4, Fig. 3, is directed against a matrix to hold it against the lower assembler shoot wall 1, Figs. 3 and 4. As the matrix moves downwards, it uncovers an inverted Y-shaped air passage 5, 6 in the wall 1, whereupon the air from the nozzle passes through the portion 5 of the passage and emerges through the ends of the portion 6 to strike the upper lugs x of the matrix and assist the star-wheel E to direct it into the assembler. The air blast also cools and cleans the matrices.