baber/WOPTO huggingface dataset:
Patent GB-707163-A (GB)
Title: Improvements relating to electrical measuring devices
Inventor: FIELDEN JOHN ERNEST
IPC: G01B3/18
Filed: 1951-06-29
Abstract: 707,163. Valve circuits. FIELDEN (ELECTRONICS), Ltd. June 30, 1952 [June 29, 1951], No. 15464/51. Class 40 (6). [Also in Group XXXVIII] Means for measuring small mechanical displacements comprises a spring-loaded plunger 1a, Fig. 1, adapted to be moved by an element in contact with it, a shaft 8 coaxial with the plunger to form a condenser 5, 8 whose capacity varies with movement of the plunger, the shaft being moved to maintain the capacity 5, 8 constant, its movement being recorded or indicated. The condenser 5, 8 is connected in a Hartley radiofrequency oscillator V1, Fig. 2, so that when it is less than condenser Cl the feed-back is positive and the valve oscillates for the half-cycle of the A.C. supplied to its anode from transformer T2, while when it is greater than C1, oscillation is inhibited. When valve V1 oscillates, a charge is built up on condenser C2 by the rectifying action of the grid-cathode circuit of thyratron V2 that is sufficient to prevent V2 conducting during the succeeding half-cycle from T2, and current in one direction flows through transformer T1 to drive motor 11 in one direction. When V1 is prevented from oscillating by condenser 5, 8, condenser C2 discharges so that thyratron V2 conducts for the succeeding half-cycle thus reversing the direction of current in transformer T1 and driving the motor 11 in the opposite direction. The motor 11, Fig. 1, rotates shaft 9 which is threaded to engage a stationary screw thread and thus is moved axially carrying shaft 8 with it. As shown, shaft 9 carries a contact arm 15 travelling over a potentiometer wire 16, Fig. 2, mounted on a drum 14, Fig. 1. This potentiometer is fed in parallel with another potentiometer 21, Fig. 2, from transformer 22, the outputs from the contacts 15, 20 being opposed and fed to amplifiers V3, V4 whose output is applied over transformer 24 to drive motor 25 so that the position of contact 20 always corresponds to the position of contact 15.
Patent GB-796818-A (GB)
Title: Improvements in electrically-operated warning mechanism
Inventor: ELLIS JOHN WYNDHAM
IPC: G04C21/18
Filed: 1955-05-27
Abstract: 796,818. Electric clocks. SMITH & SONS (ENGLAND), Ltd., S. May 28, 1956 [May 27, 1955], No. 15471/55. Class 139 [Also in Groups XXXV and XXXVIII] An electrically-operated warning mechanism comprises a synchronous motor 3 having two sets of interdigitating poles 8 whose ends are substantially coplanar and lie in a circle, a vibratory reed 5 formed from flat ferromagnetic material and having a ring-shaped portion 9 by which the reed is vibrated under the influence of the stray magnetic field of the poles in a direction normal to plane of the poles, and a cam mechanism driven by the motor 3 and so arranged as to initially hold the reed in a position B in which it is substantially unaffected by the field but to release the reed after a predetermined time to a position A in which it is vibrated by the field. The cam 11 is driven through a fractional connection not shown and a gearing 16, and has a snail periphery engaged by a portion 10 of the reed 5 to position the latter. The motor also drives conventional time-indicating hands not shown in relation to which the cam 11 can be adjusted. The reed may carry a resiliently-mounted hammer to strike a bell as it vibrates, may be adjusted by a screw 7, and has an upset portion 14 engageable by a part conical portion 13 of a plunger 12 depression of which moves the reed into an inoperative position.
Patent GB-381902-A (GB)
Title: Improvements in or relating to radio and other high frequency receivers
IPC: H03D11/02
Filed: 1932-06-01
Abstract: 381,902. Valve circuits for wireless reception. TELEFUNKEN GES. FUR DRAHTLOSE TELEGRAPHIE, 12, Hallesches Ufer, Berlin. June 1, 1932, No. 15573. Convention date, June 23, 1931. [Class 40 (v).] In a super-regenerative wireless receiver, the quenching or pendulum frequency is obtained from a relaxation or spill-over oscillation circuit which includes a glow-discharge lamp 5. The relaxation oscillation circuit also includes a condenser 6 and resistance 10, and is galvanically separate from the circuit of the receiving- valve 1, the generated impulses being applied inductively to a coil 9 in the anode of the valve. According to a modification, the glow lamp is connected in circuit with the valve so that the latter serves as the resistance for producing the relaxation oscillations, Fig. 2 (not shown).
Patent GB-808725-A (GB)
Title: Improvements in or relating to couplings
IPC: B29C65/34
Filed: 1954-05-26
Abstract: 808,725. Moulding pipe &c. couplings. ST. GEORGE., R. O.,and ST. GEORGE LIGHT ENGINEERING CO. (BERKSHIRE) Ltd. May, 17, 1955 [May 26, 1954], No. 15610/54. Class 87(2). [Also in Groups XI and XXVIII] A connecting member of thermoplastic material for making a welded lap joint has embedded in it heating means to effect local softening of the material in that region of the member where the joint is to be made. The heating means may comprise an electrical resistance wire, a metal ring subjected to high frequency induction heating, or a combustible material consisting of cordite accommodated in a hollow ring or in a coiled tube or of a mixture of powdered metal, alloy or silicide and an oxidizing agent, the mixture being selfsupporting or placed in a temporary, fusible container. Fig. 2 shows a polythene T-piece 1 in each arm of which circular wires 2 are embedded so as to lie flush with the inside wall, battery leads 4 being connected to lugs on the ends of each wire. An example of wire dimensions, current value and heating time is given. The heating element may, alternatively, be in the form of wire mesh or a loop of wire forming a double start coil. Fig. 4 shows how the wires 2 are located on the mould core 5 prior to the injection of the plastic, the leads 4 fitting in drillings 6 in the core body.
Patent GB-156152-A (GB)
Abstract: 156,152. Traun's Forschungslaboratorium Ges., H. O. Jan. 28, 1919, [Convention date]. Acetaldehyde is produced by continuously hydrating acetylene with steam at a fairly high temperature and under a pressure less than that which would be obtained by heating the liquid and gas in a closed vessel. The reaction is facilitated by the presence of small quantities of acids, such as acetic acid, sulphuric acid, nitric acid, phosphoric acid, and organic sulphonic acids, acid anhydrides or sulphur acids. Inert gases or vapours may be employed as diluents. The apparatus comprises a pressure chamber 1, surrounded by an insulating jacket 2 and supported on legs 5 above a battery of gas burners 15, the hot gases from which pass between the chamber and the jacket to the flue 15<a>. The chamber 1 contains the reaction spiral 3, a pyrometer tube 4, and is fitted with steam inlet and outlet pipes 1<b>, 1<c>, a manometer 1<a>, and a safety valve 1<d>. The reaction tube 3 is made of steel, iron, nickel steel, aluminium steel, nickel copper, ferro-silicon, nickel covered with gold, or of steel or other metals covered with platinum, iridium, osmium, gold &c., or with an acid-resistant enamel. The mixture of acetylene and steam in equal volumes is forced through the reaction tube, heated to 250-300‹ C., at a pressure of 5-10 atmospheres. The product is condensed, and the unchanged acetylene again circulated through the apparatus. The catalytic acid may be sprayed into or otherwise mixed with the reacting gases before passing into the apparatus. Acetic acid is obtained by introducing oxygen or air through the pipe 14 into the middle of the reaction tube 3.
Patent GB-576609-A (GB)
Title: Improvements in or relating to operating mechanism for vehicle brakes
IPC: B60T11/04
Filed: 1944-08-16
Abstract: 576,609. Brakes. IRVING, J. S., and PRATT, J. H. Aug. 16, 1944, No. 15665. [Class 103 (i)] The shoes of brakes of wheels at each end of an axle are spread by a single hydraulic cylinder fixed on the axle or axle-casing, the piston being coupled to a lever coupled by tension members to the shoe-spreading means. As shown, the cylinder 14 is carried by a bracket which is clamped to the axle by bolts 13. A shaft 15 is keyed in bosses 16 on the bracket 10, and rotatably carries a lever assembly one arm 18 of which is connected to the piston rod at 19, the remaining arms 22 being opposed and connected by tension members 25 with the shoespreading means. Also carried on the shaft 15 for hand operation of the brakes, is a lever 29 the boss 28 of which has a lost motion dogclutch connection with the lever assembly. The lever 29 is operated from the hand lever by a cable 30, and the lost motion permits hydraulic actuation without affecting the hand operation means. If compensation between the brakes is required, the shaft 15 is mounted in a swinging bracket. In a modification, the cylinder is secured to a pad on the axle, and the lostmotion in the hand-operation means is provided by a pin on the free end of the lever 29 engaging a slot in a link which replaces the cable 30. According to the Provisional Specification, the cylinder may be slidably and swingably mounted on the axle, and two operating levers are provided, one connected to the piston and the other to the cylinder.
Patent GB-683618-A (GB)
Title: Improvements in or relating to the construction of insulating bobbins for electric coils and the like
IPC: H01F41/10
Filed: 1949-06-13
Abstract: 683,618. Bobbins. ARON ELECTRICITY METER, Ltd., and RIORDAN, E. J. June 13, 1950 [June 13, 1949], No. 15722/49. Class 120(iii) [Also in Group XXXV] A bobbin of the kind comprising a core or sleeve around which a coil is wound to form an electromagnet and cheek plates or end flanges are secured to the core on either side of the winding comprises a central core or sleeve 1 of insulating material having an abutment in the form of a continuous ridge 2 at or near an end thereof, and a cheek plate 3 formed of a material having resilient deformability and with a central aperture 4 of dimensions less than the external dimensions of the abutment to permit the said cheek plate to be forced over the abutment and subsequently retained thereby by reason of the positive interengagement of the parts. The abutment may be constituted by a wall of a groove in the external surface of the sleeve and the surface of the abutment directed axially outwards with respect of the coil windings may be chamfered as indicated at 2a. The cheek plate may be finally secured in position by cementing it to the central core.
Patent GB-1245975-A (GB)
Title: Clip-on shoe or sandal
Inventor: GOLDSCHMIDT MORRIS
IPC: A43B3/12
Filed: 1968-04-02
Abstract: 1,245,975. Boots &c. M. GOLDSCHMIDT. 1 April, 1969 [2 April, 1968], No. 15752/68. Heading A3B. A shoe or sandal consists of a sole and heel unit 1 which is held on the wearer's foot by clips 2, the clips being of metal or plastics or similar material of a slightly springy nature, attached to or forming part of the sole 1, protruding upwards and curved inwards to grip the edge of the foot, with the top ends curved slightly away from the foot to facilitate the foot entering the shoe or sandal. The clips may be positioned at the toe and/or heel of the shoe and may be covered with a soft substance for comfort.
Patent GB-446792-A (GB)
Title: Improvements in or relating to method of stabilizing shortening, and the improved shortening resulting therefrom
IPC: A23D9/00
Filed: 1935-05-30
Abstract: Lard, beef fat, hydrogenated cottonseed oil, cotton-seed oil compounds, and other shortening is stabilized against oxidation by mixing with it a quantity of a heavier-than-water distillate obtained in deodorizing hydrogenated sesame seed oil.  The distillate is obtained under the middle water layer of the condensate in an ice-cooled flask when deodorizing the hydrogenated sesame seed oil by passing a rapid flow of steam for 4 hours through the oil at 200 DEG C., under vacuum.  In some cases, the active substance may become dissolved in the fatty layer on top of the water layer, and the stabilization may be obtained by adding a correspondingly larger proportion of this fatty layer to the fat.
Patent GB-991200-A (GB)
Title: Method of preparing compactible thorium oxide-plutonium oxide particles
IPC: C04B35/51
Filed: 1964-04-16
Abstract: 991, 200. Nuclear fuel material. UNITED STATES ATOMIC ENERGY COMMISSION. April 16, 1964 [July 2, 1963], No. 15799/64. Heading G6C. Plutonium-containing thorium oxide particles are prepared by adding plutonyl nitrate, PuO 2  (NO 3 ) 2 , to an aqueous suspension of dispersible thiorium oxide at a plutonium proportion up to 5 mole per cent of the total metal values therein, heating the resulting mixture under agitation until a sol is formed, evaporating the sol at a temperature below 100‹C. whereby dried gel fragments are formed and firing the resulting gel fragments at a temperature of at least 1100‹C. Relatively large, high density particles suitable for nuclear fuel element fabrication by vibratory compaction are obtained. It is preferred to use thorium oxide prepared by contacting thorium nitrate with superheated steam at a maximum temperature of 475‹C. This material is in the form of crystalline aggregates which degrade to angle crystallites of 50 to 100 angstroms mean diameter upon being heated in an agitated nitrate system. The thorium oxide is suspended in an aqueous system at any concentration up to about 5 moles, with 1 to 2 molar being preferred, and plutonyl nitrate, preferably in aqueous solution, is then added to provide a plutonium concentration up to 5 mole per cent preferably between 1 and 4 mole per cent of the total metal values in the mixture. The pH of the mixture should be adjusted to a value between 2. 5 amd 4. 0, preferably between 3. 5 and 4. 0. The heating temperature is not critical but a faster reaction is obtained at higher temperatures, heating for between 2 and 4 hours being required at the preferred temperature of 90‹C. It is preferred to maintain the sol at a temperature of between 80‹ and 90‹C. until all except between about 3 and 7% of the volatile nitrate and water have been removed from the resulting gel, usually a period of between 4 and 24 hours being necessary. The dried gel fragments are fixed at 1150‹C. for at least one hour to obtain oxide particles of maximum density. The particle size of over 90 weight per cent of the product is normally larger than 16 mesh (1. 19mm) and about 75% is larger than 10 mesh (2 mm). The plutonium distribution is virtually uniform and the density of the particles between 95 and 99% of theoretical. In an example, a 68. 5 gram sample of the particles was compacted to a density of 76% of theoretical in a metal tube by grounding the particles with a mortar and pestle to produce a size distribution of 60 weight per cent, + 16,-10 mesh; 15%, +100,-70 mesh; and 25%-200 mesh. The sized particles were then poured into a tube 6. 5 mm in diameter and vibrated by means of hand tamping. Densities between 89 and 91% of theoretical may be obtained by subjecting the loaded tube to vibration.
Patent GB-1159103-A (GB)
Title: Improvements in or relating to Disc Brakes
Inventor: HARRISON ANTHONY WILLIAM
IPC: F16D55/226
Filed: 1965-07-10
Abstract: 1,159,103. Disc brakes. GIRLING Ltd. 8 July, 1966 [10 July, 1965], No. 15801/69. Divided out of 1,159,101. Heading F2E. The subject matter of the Specification is the same as that of Specification 1, 159, 102 but the claims differ
Patent GB-442667-A (GB)
Title: Ornithopter
IPC: B64C33/00
Filed: 1934-05-28
Abstract: 442,667. Ornithopter. HAENLE, K., 99, Finkenkrugerweg, Staaken, Berlin. May 28, 1934, No. 15806. [Class 4] The wings of an ornithopter comprise several stiff and indeformable winglets rotatable over the wing span by means of bearings disposed between the leading edge of the winglets and the centre of pressure, springs being disposed between the winglets and the spar in such manner that alteration of the angle of incidence between the winglets and the spar alters the tension of the springs. As shown in Fig. 6, the machine comprises a fixed wing W and flapping wings F<1>, F<2>, adapted to oscillate about axes A, Fig. 2. Wings F<1>, F<2> comprise spars H and rigid wing- lets f connected thereto by bearings and by springs K, Fig. 3. Means are provided for altering the tension of the springs K in each wing either in the same sense to provide elevator control or in opposite senses to give lateral control. These means comprise a screw spindle X, Fig. 9, carried by the fore- and-aft bearing of each flapping wing and having a recess at its inner end engaged by pins affixed to a lever P secured to the spar. Rotation of screw X thus causes rotation of the spar about its longitudinal axis.
Patent GB-185823-A (GB)
Title: A rotary multiple cylinder for the purpose of drying matter containing moisture
IPC: F26B11/04
Filed: 1921-06-09
Abstract: 185,823. Buxton, J., and Buxton, S. June 9, 1921. Continuous and automatic discharge apparatus, rotary.-A rotary multiple drying-apparatus comprising an outer cylinder in which are arranged a number of longitudinal drying compartments and air heating compartments heated by a heating medium introduced into the spaces between such compartments, is provided with a conicocylindrical shoot fixed concentrically to the end of the outer cylinder for feeding the material to be dried into the drying-compartments. As shown, the apparatus comprises a steam-heated rotary cylinder 1, Figs. 1 and 4, the ends of which project into stationary air-boxes 7, 8 and within which is secured the drying and air-heating cylinders 2, 3 respectively. The material is fed into the drying-cylinders by a screw conveyer 32 through a shoot 34 having projections into the drying-cylinders and which is secured to the outer cylinder, and is agitated and conveyed to the discharge screw 35 by rotary stirrers 21 coacting with grids 20, and adjustably inclined plates 18 pivoted to the drying-cylinders. The stirrer shafts are driven through gear-wheels 23 from a gear-wheel 24 carried by the outer cylinder; the gear-wheel 24 may be formed with internal teeth so that the stirrers are rotated in a direction opposite to that of the cylinder. Steam is supplied to the cylinder through the pipe 10, and the air for drying the material is drawn by a fan 45 through the adjustable inlets 26, air-heating cylinders 3, air-box 7, and drying- cylinders 2 and discharged through the chimney 46. Figs 3 and 6 show a modification in which the cylinder is heated by a furnace 40 arranged within a fixed cylinder 37, the air for drying the material being drawn by the fan 45 through the tubes 42 and drying compartments 2 and discharged through the pipe 47 to the chimney 41.
Patent GB-318507-A (GB)
Title: Improvements in or relating to shock absorbing mounts for thermionic valves or other electrical devices
IPC: H01R33/76
Filed: 1928-05-31
Abstract: 318,507. Benjamin Electric, Ltd., and Campbell, GÀ May 31, 1928. Addition to 250,431. Vacuum tubes.-In the shock-absorbing mount for thermionic valves set forth in the parent Specification, the holder for the spring sockets is omitted and a one-piece base is employed in the form of an inverted cup-shaped member 10 provided with holes 12 to admit the valve pins, the spring sockets 17, which are of the kind set forth in the parent Specification, being secured to the base by terminal bolts 15 passing through holes 14. To prevent contact of the springs on depression with the walls of a wireless cabinet to which the base may be secured, a sheet 19 of celluloid, mica &c. is secured to the underside of the base by cement or by plates 18 and washers 20 through which the screws pass. In addition, a boss, ring &c. 22 may be provided in the base to limit the downward movement of the valve pins. A modified spring socket, Fig. 4, is formed from a metal strip bent to form a socket 17b, at 17<c> at right angles, folded at 17<e> along an inclined line and finally bent at right angles at 17d. A hole 17f is provided to receive the securing bolt 15 and the end is formed as a soldering tag 17<a>. To facilitate the entry of the valve pins, the opening of the socket 17b may be flared. Holes are provided in the base to receive securing screws.
Patent GB-240550-A (GB)
Title: Improvements in driving means for machines
IPC: B23Q11/00
Filed: 1924-07-03
Abstract: 240,550. Hals, J. July 3, 1924. Circular-saw machines.-In transmission systems for driving machine-tools, such as circular saws, grindstones, and polishing-machines, the main machine shaft 7 is aligned with the driving- shaft of the motor 4 and carries secured thereto a fly wheel 5 engaged by a centrifugal clutch, which is preferably of the radially-moving segment type and is driven by the motor. In the sawing-machine shown, the parts mentioned, including the saw 6, are mounted on a table 3 supported on a sledge 1, the work being fed to the saw on a holder 10 secured on arms 8 hinged to the sledge. A saw guard 9 is provided.
Patent GB-981194-A (GB)
Title: Improvements in or relating to compounds of the vitamin a series
IPC: C07C33/02
Filed: 1961-05-03
Abstract: The invention comprises compounds having the formula <FORM:0981194/C2/1> or a salt thereof in which R represents an alkyl group containing one to six carbon atoms 5 - b  - ionylidene - 4 - amino - pentanone - 2 is specified.  These compounds may be made by reacting an aldimine having the formula <FORM:0981194/C2/2> in which R is hydrogen or an -alkyl group containing one to six carbon atoms with acetone at a temperature between 0 DEG  and 50 DEG  C. The imine may be formed in situ from the corresponding aldehyde which may be b -ionylidene acetaldehyde by adding ammonia or methyl-, ethyl-, propyl-, isopropyl-, butyl-, isobutyl-, or amyl-amine.  The b -aminoketone may be purified by pouring the reaction mixture into a dilute aqueous solution of sulphuric acid or hydrochloric acid and then washing with an ether or an aliphatic or aromatic hydrocarbon. The b -aminoketone may be de-aminated to give the corresponding C18-ketone by heating under reduced pressure or by heating in the presence of acetic acid, preferably in ethanol or methanol. The C18-ketone may be isolated by pouring the reaction mixture into water, and extracting with petroleum ether.
Patent GB-210388-A (GB)
Title: Improvements in heat-treated zirconium steel and processes of making same
Filed: 1923-06-21
Abstract: 210,388. Electro Metallurgical Co., (Assignees of Becket, F. M., and Feild, A. L.). Jan. 25, 1923, [Convention date]. Alloys. - Zirconium is added to steels, which may be carbon steels or may contain also other elements such as chromium, nickel, vanadium, molybdenum or copper in normal or less than normal proportions, and the product is heattreated. The range of zirconium is preferably 0.04-0.4 per cent, and it may be added to the molten steel in the form of an alloy containing zirconium and silicon. Steels containing specified percentages of zirconium, carbon, manganese, sulphur, and phosphorus, and of carbon, nickel and chromium, are referred to.
Patent GB-625224-A (GB)
Title: Fuel-saving kettle
IPC: A47J27/026
Filed: 1947-06-19
Abstract: 625,224. Tea kettles. CRAWFORD, J. C. June 19, 1947, No. 16191. [Class 66] A kettle, e.g. of aluminium, has a recessed base B to direct hot gases through fluetubes A which are curved so as to pass through the body of the kettle and discharge through the side.