baber/WOPTO huggingface dataset:
Patent GB-1193005-A (GB)
Title: Speed Control Circuit for Single Phase Commutator Electric Motor
IPC: D05B69/18
Filed: 1968-03-27
Abstract: 1,193,005. Speed control of A.C. motors. JANOME SEWING MACHINE CO. Ltd. 27 March, 1968 [27 March, 1967], No. 14828/68. Heading H2J. [Also in Division G3] The speed of a single phase commutator motor M is controlled by pulses fed to a triggered semiconductor device SSSM from an adjustable trigger circuit; the difference between a control voltage V1 derived from the supply and the back e.m.f. V2 of the motor is applied across a second triggered device SSST which provides pulses through a capacitor C1 and transformer PT when triggered. At the lowest speed setting of a control VR the voltage V1 is just equal to the breakdown voltage of SSST so that pulses are produced to energize the motor only when the back e.m.f. is zero and the motor stationary (Fig. 3a). If V1 is increased, or an increase in load reduces motor speed and back e.m.f., then the difference voltage increases and pulses are produced more frequently (Figs. 3b, 3c). Further increase in V1 causes the pulses to be produced earlier giving a measure of phase control (Figs. 3d, 3e); this can be improved by connecting a stabilizing diode Z (Fig. 6, not shown) in place of resistor R2 so that voltage V1 has an almost rectangular waveform. A diode D and series resistor R3 reduces the voltage across SSST during negative half cycles of the supply so that at low speeds the trigger operates only on positive half cycles. At the higher speeds, V1 may become sufficiently great to produce pulses during negative half cycles as well (Fig. 3f). The diode D may be replaced by a germanium or selenium diode in series with the trigger circuit (Fig. 6, not shown). The devices SSSM and SSST are symmetrical.
Patent GB-108775-A (GB)
Title: Improvements in, or relating to Recording Pressure Gauges, Indicators, and other Measuring Instruments.
Inventor: DUGON ALEXANDER LAMONT
IPC: G01D15/32
Filed: 1916-10-19
Abstract: 108,775. Dugon, A. L. Oct. 19, 1916. Disk recording-apparatus for the readings of pressure gauges and other indicating- instruments wherein the relative positions of the clockwork and the indicating-instrument are so arranged that the recording- disk is practically as wide as the cylindrical casing of the apparatus. A cranked recording-arm is designed so that its bent portion passes between the record card and the casing. Means are provided for raising the recording-arm when changing the record disk and for ensuring its return to the recording position on closing the cover of the casing, together with means for supporting the glass front and for making a dusttight joint. The circular base a, Fig. 2, is recessed to form a flange d to which the tubular side c is secured by internal brackets and screws, the clockwork being arranged so that the driving spindle occupies the centre of the cylinder. On the base a are mounted pillars j to the upper ends of which is secured by screws and keyhole slots a plate i adapted to support the record disk and perforated at the centre to admit the driving- spindle, a flanged nut o serving to secure the record disk thereto. Flanges r formed on the plate serve to press the disk thereon. A slot i<1> is formed in the plate i to admit the cranked indicator arm p<1> to which is pivoted at q the recording-arm p. When changing the record disk, the arm p is raised by the curved extension of a lever t pivoted to a bracket v, Fig. 5, carried by the plate i. A finger x on the lever is struck by the lid to depress the recording-arm on closing the casing. The supporting means for the glass cover comprises two spun metal rings y, z shaped as shown in Fig. 2 to form a groove adapted to receive the glass 7 and a split ring 9. A strip of felt 8 is inserted in a second groove between the plates to form a dust-tight joint between the cover and the body of the casing.
Patent GB-1596329-A (GB)
Title: Tetradeca peptides
IPC: C07K14/655
Filed: 1978-04-17
Abstract: Novel, therapeutically active compounds have the following formula <IMAGE> in which Y denotes D-Val or D-Ala. The compounds can also be in the form of pharmaceutically acceptable acid addition salts. The compounds of the formula I are prepared by oxidising a corresponding tetradecapeptide, the two sulphydryl groups being converted into a disulphide bridge. The novel compounds can be used for inhibiting the release of growth hormones and for reducing intestinal motility.
Patent GB-940248-A (GB)
Title: Improvements in or relating to the production of uranium metal
Inventor: DUXBURY DONALD
IPC: C22B60/02
Filed: 1961-04-25
Abstract: Uranium is produced by reducing UF4 with an alkaline earth metal, particularly Mg or Ca, to which reactants is added as sole additive 0.25 to 2.5 wt. per cent of an alkali metal monofluoride such as NaF. The fluoride may be mixed with the UF4 prior to mixing with the reductant e.g. Mg raspings and pelletizing, or the fluoride may be compacted into wafers and disposed between pellets of mixed UF4 and Mg. Specifications 780,974, 805,191 and 933,436 are referred to.
Patent GB-461958-A (GB)
Title: Improvements in the manufacture of steel in the basic bessemer converter
IPC: C21C5/28
Filed: 1935-05-23
Abstract: To improve the eliminations of sulphur, steel is produced from the pig iron produced as described in Specification 460,138, in a basic Bessemer converter with a flux of burnt lime containing not more than 2,5 per cent of silica.  The amount of lime used is such that while the lime content of the slag is increased, the phosphoric acid content is not decreased below 18 per cent.  To increase the absorptive power of the slag for sulphur, the temperature in the converter may be raised either by raising the temperature of the pig iron before charging into the converter, charging the lime into the hot converter before adding the pig iron, pre-heating or drying the air blast or by enriching the blast with oxygen.
Patent GB-219454-A (GB)
Title: Improvements in guards for rotating fans or the like
IPC: F16P1/02
Filed: 1923-06-09
Abstract: 219,454. Collins, C. E. June 9, 1923. Guards.-A guard for a rotary fan in the form of an openwork cage surrounding the blades is constructed of untarnishable material produced from a cellulose acetate base, such as that known by the registered Trade Mark " Celastoid." A back ring 1, large enough to pass over the blades, is made of a tube of the material with a metal cone and a joint 14. Wires 3 of the material solid or reinforced pass from the ring 1 parallel to the axis of the fan and then radially inwards to join a central welded ring 7 of the material. A front stiffening ring 9 may be provided, and alternate wires 3 may be bent diagonally, as shown at 10.
Patent GB-120750-A (GB)
Title: Improvements in or relating to the Manufacture of Coverings of Roofs, Walls, Partitions & the like.
Inventor: BROWN ERNEST OSMAN
IPC: E04D5/10
Filed: 1917-10-19
Abstract: 120,750. Brown, E. O. Oct. 19, 1917. Making compound fabrics.-A covering material for roofs, walls, partitions, &c. is formed by introducing a reinforcement of metal stripe, wires, rods, tubes, &c., between two layers of fabric, applying a waterproof adhesive to the layers and uniting the whole by pressure. The adhesive, which may consist of cement or glue or a bituminous substance, is applied to both surfaces of one of the layers, and in some cases to one or both surfaces of the other layer. The layers of fabric may consist of canvas, hessian, felt, or bituminous felt, and may themselves be formed of two or more fabrics united by adhesive. Fig. 1 shows one form of the apparatus employed for making the material. The lower fabric b is coated by melted adhesive in the bath f, excess being removed by the scraper i. The reinforcing strips c being placed in position, the upper fabric a is pressed down on to them by the action of the rollers e. Water may be supplied by the baths e<1> and drip pipes e<2> to prevent sticking, or slate dust or the like may be applied from hoppers above the rollers. Modified forms of apparatus are described for uniting the different forms of material referred to above.
Patent GB-1163491-A (GB)
Title: Surface Treatment of Ferrous Metals
Inventor: CAUBET JACQUES JEAN
IPC: C25D5/36
Filed: 1967-04-03
Abstract: 1,163,491. Carburising ferrous metals. Fused salt baths; electrolytic degreasing; electroplating. SOC. D'APPLICATION DES TRAITEMENTS DE SURFACE. April 3, 1967 [April 4, 1966], No. 15179/67. Headings C7B, C7M and C7U. Steel or cast iron parts are treated for 2 to 4 hours at 550‹C. to 600‹C. in a molten salt bath comprising alkali metal cyanides, cyanates and at least one alkali metal carbonate, to which has been added 1 to 8 parts per thousand of alkali metal ferricyanide and 0‹5 to 2 parts per thousand of alkali metal ferrocyanide, the content of alkali metal carbonates in the bath being maintained at 1% to 7% above the equilibrium value. The parts are electrically insulated and the bath is earthed. After treatment the parts are, with or without passivation, given a coating of cadmium, copper, silver, gold, lead, tin, zinc antimony, bismuth, cobalt or indium by a chemical or electrolyte process. The treatment bath may also include compounds supplying the elements Se, Te, F, Cl, Br, I, P or S. One salt bath exemplified contains in percentage by weight:- sodium sulphide 1% sodium cyanide 3% potassium cyanide 3% sodium and potassium cyanates 20% sodium and potassium carbonates 35% sodium and potassium chlorides 37% sodium and potassium thiocyanates 1% to which is added 5% of sodium carbonate, 3 parts per thousand of potassium ferricyanide and 1 part per thousand of potassium ferrocyanide, while another contains:- sodium selenide 0À5 sodium cyanide 1 potassium cyanide 5 potassium cyanate 25 alkaline carbonate 37  alkaline chloride 30‹5  alkaline phosphate 1 to which were aded 7 parts per thousand of potassium ferricyanide and 1 part per thousand of potassium ferrocyanide. Test pieces after salt bath treatment were anodically degreased at 60‹-70‹C. for 3 - 4 minutes using graphite anodes with a surface area five times greater than that of the treated parts and a current density of 10 - 15 amps. /sq. dm in a bath containing trisodium phosphate, sodium metasilicate, sodium carbonate, Lauric alcohol sulphate and a complexing agent; codmium was desposited electrolytically at 20‹C. from an aqueous bath containing codmium cyanide, sodium cyanide, and sodium hydroxide using a cathode current density of 1‹5 amp/sq. dm and anodes of pure cadmium with a current density of 0‹75 amp/ sq. dm, while copper was electrolytically deposited at 60‹C., from an aqueous solution containing copper cyanide, sodium cyanide, sodium carbonate, and rochelle salt the cathode current density being 3 amp/sq. dm and anode current density being 2 amp/sq. dm.
Patent GB-413742-A (GB)
Title: Improved implement for removing moisture and water from turf or hard surfaces
IPC: E01H1/10
Filed: 1933-01-23
Abstract: 413,742. Removing moisture from turf &c. ; land and garden rollers. LUTTRELL, A. J. W., 40, Argo Street, South Yarra, and McLEAN, A., Leslie Road, Essenden, both in Victoria, Australia. Jan. 23, 1933, No. 15426/34. Convention date, Oct. 7, 1932. Divided on 405,796. [Class 6 (i).] Apparatus for removing moisture from turf or other surfaces comprises an absorbent roller surfaced with sponge rubber and rotatably mounted in a handle member 6 which also carries a receptacle 24 and a pressure roller 8 driven by frictional contact with the sponge rubber surface A. The receptacle 24 is provided with a flexible guide lip 31 made of rubber, leather, thin steel or the like. Other details of construction, including means for adjusting the rollers 1, 8 and the provision of a sectional auxiliary roller for transport purposes, are described in Specification 405,796.
Patent GB-865859-A (GB)
Title: Improvement in diaphragm pumps
IPC: F04B43/107
Filed: 1957-05-15
Abstract: 865,859. Diaphragm pumps. FRANCAISE POUR LA SEPARATION L'EMULSION ET LE MELANGE (PROCEDES S. E. M.) S. A. May 15, 1957 [May 15, 1956; April 26, 1957], No. 15427/57. Class 102(1). A diaphragm pump comprises a substantially cylindrical non-metallic diaphragm 2, Fig. 1, which is contracted and expanded by the reciprocation of a piston 14 and driving liquid in chamber 13 and pipe 11 to pump liquid from an inlet 5 to an outlet 6. The diaphragm 2 is so constructed and mounted, and the stroke of the piston and volume of the driving liquid is so chosen that throughout the movements of the diaphragm its material is never subjected to tension. Leakage of liquid from the chamber 13 and pipe 11 is replaced by a reciprocating piston 16 which pumps liquid from a supply tank 22 to the chamber 13. Any tendency for an excess pressure to exist in the chamber 13 is relieved by a valve 24 loaded in accordance with the pressure in pipe 6 through a bellows 29 and liquid in pipe 28 acting on a diaphragm 24<SP>1</SP> thus the pressure inside of the lug is approximately the same as that outside during the pumping stroke. In a modification the piston 16 delivers to a space between seals surrounding the piston 14 to prevent leakage. In a further modification the diaphragm 43, Fig. 5, is formed with corrugations 44, 45 to allow for the displacement of the diaphragm without setting up tension in the material. Two mandrels are preferably placed in the diaphragm which is surrounded by a cylinder 60 provided with slots so that the driving liquid is directed to the same portions of the diaphragm. If, due to leakage, the diaphragm is in the position shown at the end of an inward stroke of the piston 62 the next outoutward stroke draws in driving liquid past the valve 64. Excess driving liquid is relieved by a valve 68. The stroke of the piston may be adjusted to vary the quantity of the liquid pumped. The diaphragm may suitably be made of polyfluorethylene. Specification 854,524 is referred to.
Patent GB-975552-A (GB)
Title: Improvements in or relating to automatic cigarette dispensers
IPC: A24F15/10
Filed: 1963-04-19
Abstract: 975,552. Cigarette dispensers. H.G. ROTT, [trading as SCHOELLER & CO. ELEKTROTECHNISCHE FABRIK]. April 19, 1963 [May 14, 1962], No. 15451/63. Addition to 893,194. Heading B8P. The automatic cigarette dispenser of the parent Specification is modified by having a spring lever 90, carrying a roller 91 which bears on the spring-biased member 4a of the claw 4 to increase the pressure on a cigarette Z during the first part of its return path. The lever 90 is rotatable about a pivot 92 and is connected to the armature 93 of an electromagnet 94. A spring 95 returns the lever into its inoperative position after the electromagnet has been de-energized.
Patent GB-862325-A (GB)
Title: Improvements in or relating to cutting burners
Inventor: SCHULZE HEINZ
IPC: F23D14/32
Filed: 1958-05-14
Abstract: 862,325. Oxygen-cutting blowpipe burners. WARNOWWERFT WARNEMUNDE VEB. May 14, 1958, No. 15476/58. Class 75 (1). An oxygen-cutting oxyacetylene burner has the acetylene automatically throttled, to the amount necessary only for maintenance of the cutting operation, by a throttling member connected to a disphragm exposed to the pressure of the cutting oxygen when this is turned on. As shown a control device 5 containing two diaphragms 6, 7 has a spigot inserted into the acetylene branch 11 of the burner this spigot having a cross bore, aligned with the acetylene branch, and a piston way, open to the cross bore, in which can move a spring-controlled piston 9 fixed to the diaphragm 7 thereby to throttle the gas supply. The other diaphragm 6 is exposed through connecting pipe 3 to the cutting oxygen pressure, when this is turned on by tap 1, and moves a stem 8 to abut and move the diaphragm 7 carrying the throttling piston 9. The space between the two diaphragms is vented to atmosphere through openings 12; any leakage of oxygen or gas therefore vents to the atmosphere.
Patent GB-873998-A (GB)
Title: Catalyst and dehydrogenation process
IPC: C07D213/127
Filed: 1959-05-06
Abstract: An alkylpyridine containing at least one alkyl group having at least two carbon atoms is dehydrogenated to the alkenylpyridine in the vapour state (e.g. between 1000 and 1400 DEG F.) in presence of a catalyst comprising 20-68% chromium oxide, 1-10% iron oxide and 22-79% of at least one potassium compound (calculated as K2CO3) selected from the group KOH, K2O and K2CO3.  The following features are preferred:-(a) 2-15 p.p.w. of steam diluent per part of alkylpyridine is fed to the reaction zone; (b) the rate of feed of alkylpyridine is 0.5-5 V.S.H.V.; (c) alkylpyridine contains not more than 4 alkyl groups containing a total of 2-8 carbon atoms.  In the examples, 2-methyl-5-ethylpyridine gave, besides 2-methyl-5-vinylpyridine, 3-ethyl and 3-vinylpyridine, 2- and 3-picolines and 2:5-butidene. Other specified starting materials are 2- and 3-ethyl-, 3-n- and 3-iso-propyl, 2-n-butyl and 2- and 3-n-amyl-pyridines; 2-ethyl-4 (or 5)-ethylpyridines, 2-methyl-4-iso-butylpyridine and 2-isopropyl-4-(3-methylbutyl) pyridine.ALSO:A catalyst used for dehydrogenating alkylpyridines comprises 20-68% chromium oxide, 1-10% iron oxide and 22-79% of at least one potassium compound (calculated as K2CO3) selected from the group KOH, K2O and K2CO3.  Specified ingredients are chromium di-and tri-oxides, and chromic, ferrous, ferric and ferrosoferric oxides. The catalyst used in examples comprised 42.8% Cr2O3, 5% Fe2O3 and 52.2% K2CO3; others prepared with the aid of graphite and heated at 1000 DEG F. before use.
Patent GB-1457319-A (GB)
Title: Pipe joint with remotely operable latch
IPC: F16L37/00
Filed: 1974-04-08
Abstract: 1457319 Pipe joint latch McEVOY OILFIELD EQUIPMENT CO 8 April 1974 [13 April 1973] 15522/74 Heading F2G A pipe coupling comprises a male member 60 welded to a pipe 23 and a female member 70 welded to a pipe 22 the pipes being connected by axially inserting member 60 into member 70 so that the groups of no lead screw threads 66 on member 60 slide between the groups of matching screw threads 76 on member 70 and by a relative rotation of the pipes the screw threads are engaged. Accidental engagement of only a portion of the screw threads of each group is precluded by the thread 68 which has a greater thickness than the other screw threads and which will only fit into the enlarged space between the shoulder 72 and the bottom thread 77 of the female member. When the screw threads are fully engaged a stop 90 on member 60 abuts one side of the lug 78 on member 70 preventing further rotation. Rotation in the opposite direction is prevented by a movable latch 92 which in the locking position abuts the other side of lug 78. The latch is moved by an actuating device 94 comprising a double acting piston and cylinder which is remotely controlled by fluid pressure. The piston is biased by a column of Belleville springs within the cylinder forcing the latch into the locking position, the spring action being reinforced by fluid pressure applied through pipe 148 to the cylinder on the same side of the piston. Application of pressure through pipe 152 to the cylinder on the opposite side of the piston retracts the latch allowing the pipes to be disconnected. Alternatively when connecting vertical pipes the latch is positioned so that it is in alignment with a stop lug 78 when the screw thread groups 66 are aligned with the spaces between screw thread groups 76, the weight of the male member forcing the latch upward against the force of the spring bias thus making it unnecessary to use fluid pressure to retract the latch when connecting the pipes. When the members 60, 70 are rotated the latch springs out into the locking position as soon as it passes the end of lug 78.
Patent GB-1487721-A (GB)
Title: Threshold circuit with hysteresis
IPC: H03K19/08
Filed: 1976-04-15
Abstract: 1487721 Transistor switching circuits PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd 15 April 1976 [22 April 1975] 15537/76 Heading H3T A threshold switch with hysteresis comprises a pair of cross coupled complementary transistors T1, T2 having an input A connected to the emitter of one, T1, and an output coupled from the collector to the second, T2, to the base of an output transistor T3 of same conductivity type as T2, a current injector I being provided to supply current to the output transistor. When the input signal at A is zero, T1, T2 are cut off, and the current from I flows to T3 to turn it on making output S low. If the input increases above a first threshold, the sum of the baseemitter voltages of T1 and T3, transistors T1, T2 turn on and T3 turns off to give a high level output. If the input now falls below the sum of the base-emitter voltage of Tl and the collectoremitter voltage of T2, T1, T2 again turn off and T3 turns on, reverting to the initial conditions. In a modification Fig. 5 (not shown) a further transistor (48) has its emitter-collector path connected across the emitter-base path of the first transistor T1 and has a second current injector (49) connected to its base to increase the first threshold level and improves the immunity to noise. The arrangement may be used as an I<SP>2</SP>L interface, the injector I and transistor T3 being integrated as a lateral plus a vertical transistor in the conventional manner for I<SP>2</SP>L. The transistors T1, T2 are similarly integrated.
Patent GB-370718-A (GB)
Title: Improvements in machines for grading articles by weight
IPC: B07C5/22
Filed: 1931-05-27
Abstract: 370,718. Grading eggs &c. by weighing. THOMAS, L. H., The Gables, Hurstbourne Gardens, Barking, Essex, and GARDINER, E. G., 179, Leytonstone Road, Stratford, London. May 27, 1931, No. 15573. [Class 143.] In a machine for grading eggs &c. as they roll down a track provided with hinged sections, the eggs fall from the track to delivery trays in a plurality of stages imparting to the eggs successive changes of direction, the intermediate stages (or at least one of such intermediate stages if a plurality are provided) causing the eggs to turn into a lateral direction, and the eggs being decelerated as they approach the delivery points. The egg A, Fig. 1, after rolling down the track and depressing the hinged section 4a, runs on to an intermediate tray 18 the floor of which is inclined transversely to the track. The egg thus comes to rest in the direction of the track and then rolls down the intermediate tray to a hinged portion 21, Fig. 2, of the floor through which the egg passes to the delivery tray 24, again changing its direction of travel and checking its speed. The hinge of the portion 21 may be situated so as again to change the direction of rolling of the egg through a right-angle.
Patent GB-384568-A (GB)
Title: Improvements in non-refillable bottles
IPC: B65D49/00
Filed: 1932-06-09
Abstract: 384,568. Non-refillable bottles. EMBLEY, K. L., Danesdene, Tranby Avenue, Hessle, Yorkshiie. June 9, 1932, No. 15736. [Class 125 (i).] A non-refillable bottle is provided with an air lock formed by two glass partitions a, a<1> obliquely disposed in the neck and having apertures D, B at the bottom and top respectively and to one side of the bottle neck as shown. A pouring spout F is formed in the rim at an angle of 45‹ to the plane of the partitions to ensure the bottle being held in a suitable position for pouring. The bottle is filled by withdrawing the air.
Patent GB-700716-A (GB)
Title: Improvements in and relating to mounting strips for electrical wiring tags
Inventor: HEATH CLARENCE WILLIANS
IPC: F16L3/22
Filed: 1951-07-03
Abstract: 700,716. Distribution panels. CARR FASTENER CO., Ltd. May 14, 1952 [July 3, 1951], No. 15799/51. Class 38 (1) The wiring tag mounting strip of Specification 666,048 is provided with means for securing it both intermediately of, and at, its ends, to a support. The intermediate securing means comprises a tag 6 held in a transverse slot 2 in the strip 1 by lugs 7, in a manner similar to the wiring tags 5, and having an arm 8 with an apertured foot 9 adapted to be secured to a support 11. The strip is mounted at its ends by channel members 12 having a fixing foot 13 and a hooked end 15 engaging an aperture 16 in the strip.