baber/WOPTO huggingface dataset:
Patent GB-140239-A (GB)
Title: Improved apparatus for intermittently delivering regulated quantities of liquid
IPC: E03D5/02
Filed: 1919-04-24
Abstract: 140,239. John, A. E. April 24, 1919. Fluid-actuated valves.-A valve device for automatically delivering a regulated quantity of liquid at predetermined intervals comprises a main valve actuated by fluid pressure under the control of an auxiliary valve actuated by a piston in a timing-cylinder, the outlet from which is controlled by a further auxiliary valve opened by the movement of the main valve. The main valve 5 is carried by a piston 1 constructed as described in Specification 145,133, so as partly to close the side inlet port 3 when the valve is in engagement with the seat 6. The hollow valve spindle 13 has an inlet port 14 at its lower end, and at its upper end carries an adjustable seat 12 for a valve face 11 carried by the timing-piston 10. Water, leaking past the piston 1 and through the space 9 between the valve spindle and an extension 8 of the timing-chamber 7, passes through a central aperture in an auxiliary valve 15 into the chamber 7, and eventually raises the piston 10. This releases the pressure above the piston 1 and allows the main valve to open; the upward movement of the valve then causes a collar 18 on the spindle to engage and open the auxiliary valve 15 to drain the timing-chamber through an auxiliary outlet 17. The descent of the piston, which may be loaded by a spring, is retarded by restricting the air vent above the piston by a loose cover or valve-controlled orifice.
Patent GB-1506431-A (GB)
Title: Method of manufacture of n-alkyliminoalanes
IPC: C07F5/06
Filed: 1975-03-12
Abstract: 1506431 Alkyl aluminium hydrides CESKOSLOVENSKA AKADEMIE VED 12 March 1975 [28 March 1974] 10340/75 Heading C2C Compounds having the recurring unit where R is C 2-6  alkyl are made by reacting aluminium, a primary amine of formula R.NH 2  and hydrogen in an organic solvent at a temperature of 70-240‹ C. and a pressure of 20-500 atmospheres gauge in the presence of an initiator comprising an alkali metal, a complex of aluminium hydride with an alkali metal hydride or a Lewis base, or aluminium hydride substituted with two C 1-4  alkyl groups or with an alkylimino group.
Patent GB-744999-A (GB)
Title: Improvements in or relating to electrical voltage indicating systems
Inventor: LEE DAVID FREDERICK
IPC: H02H3/253
Filed: 1953-04-15
Abstract: 744,999. Voltage detectors. ELECTRIC & MUSICAL INDUSTRIES, Ltd. April 15, 1954 [April 15, 1953], No. 10367/53. Class 37. [Also in Group XXXVII] In an electric indicating system for a polyphase supply, each phase thereof is connected through a capacitor to a common point and the latter is connected to a detector which accordingly develops zero voltage on the operative winding of a relay when voltage is present on each supply phase; there being provided a further detector circuit indicating the presence of voltage across a single phase of the supply. A symmetrical polyphase supply 4 is connected over conductor groups 1, 2, 3 to output terminals 5, 6, 7 and each conductor of these groups is respectively connected over capacitors 8, 10 and 11 to junctions 9, 12, 13 of pairs of series assisting rectifiers 14, 15, 16 connected in parallel across a relay 17, shunted by thermistors 17a. The neutral line if available may be connected to a similar rectifier. The relay is inoperative when voltages are either present or absent on all the conductor groups but operative when voltages appear on one or two groups but not on the third. Further bridge rectifiers 18, 19, 20 are connected through non-linear resistances 24, 25, 26 across the 1st and 2nd, 2nd and 3rd and 1st and 3rd conductors of the respective groups 1, 2 and 3 to operate relays 21, 22, 23 when full voltage is present, whose contacts are in series with those of relay 17 which may then indicate the presence of the appropriate voltage on each conductor of each 3-phase circuit simultaneously.
Patent GB-1497785-A (GB)
Title: Additive compositions for wellbore fluids
IPC: C09K8/035
Filed: 1976-03-16
Abstract: 1497785 Wellbore fluids J M JACKSON 16 March 1976 [17 March 1975] 10375/76 Heading E1F [Also in Division C3] An additive composition for use as a viscosifier in a clay-free, non argillaceous wellbore fluid comprises hydroxyalkyl guar gum and magnesia or magnesium hydroxide. Preferably the wellbore fluid is a brine containing at least 1.0% by weight of a water soluble salt of potassium, sodium or calcium. The wellbore fluid may contain a fluid loss agent, e.g. alkali or alkaline earth lignosulphonate salts, starches, gum or oil; and an electrolyte inhibitor for preventing hydration, e.g. at least 600 ppm calcium ion, at least 200 ppm aluminium ion or chromium ion, at least 1500 ppm potassium chloride, at least 5000 ppm sodium chloride or mixtures thereof. The magnesia or magnesium hydroxide is present in an amount of at least 10% by weight, e.g. 28-50% by weight, based on the weight of hydroxyalkyl guar gum, the latter being present in an amount of from 0.5-10 ppb of water. Preferably the hydroxyalkyl guar gum is either hydroxyethyl or hydroxypropyl guar gum. The wellbore fluid may be a drilling fluid, a completion fluid, a workover fluid or a fracturing fluid.
Patent GB-528682-A (GB)
Title: Improvements in electric immersion heaters
IPC: H05B1/02
Filed: 1939-04-03
Abstract: 528,682. Thermal switches. BEST PRODUCTS, Ltd., and BEST, F. L. April 3, 1939, No. 10399. [Class 38 (v)] In a safety cut-out for an immersion heater of an electric kettle &c. excessive heat melts a fusible joint 26 between a shaft 27 and a bush 26 screwed into a tube 20, the shaft 27 then rotating so as to release a plunger 34 acted upon by a spring 36 and cause the ejection of the usual socket member from the pins 14. The plunger 34 is connected by a link 37 with a toothed member 33 which bears by gravity on a ratchet 31 mounted on a squared portion of the shaft 27. The lower end of the shaft 27 is received by a cap 25 which is brazed in position being sufficiently removed from the fusible joint 36 to prevent this fusing during the process. The tube 20 is brazed to the immersion heater 15 at 24.
Patent GB-1423041-A (GB)
Title: Sealant compositions
IPC: C08K5/01
Filed: 1973-03-02
Abstract: 1423041 Sealant compositions NIPPON PETROCHEMICALS CO Ltd 2 March 1973 [7 March 1972] 10404/73 Heading C3R A sealant composition comprises a liquid polysulphide rubber and a plasticizer of formula where n is 1 or 2, m is 0 or 1, m + n is 1 or 2, R<SP>1</SP>, R<SP>2</SP> and R<SP>3</SP> are hydrogen or alkyl, R<SP>4</SP> and R<SP>5</SP> are alkylene and R<SP>6</SP> and R<SP>7</SP> are hydrogen or methyl. The composition may contain from 10 to 40 parts by weight of plasticizer per 100 parts by weight of polysulphide rubber and may include fillers, tackifiers and thixotropic and vulcanizing agents. Examples are given.
Patent GB-436010-A (GB)
Title: Improvements in thermally-released automatic electric circuit-breakers
IPC: H01H71/16
Filed: 1934-04-09
Abstract: 436,010. Automatic circuit-breakers. ELLISON, Ltd., G., and ANDERSON, J., Wellhead Lane Works, Perry Barr, Birmingham. April 9, 1934, No. 10630. [Class 38 (v)] A thermally released circuit-breaker compensated for variations of external temperature comprises a switch arm e pivoted at b and pressed upwards by a spring d and held in the closed position shown by a notch j in an arm g adjustably connected by screws k to an arm h, the arms g, h pivoting about a point i and the arm h being fixed at o to a bimetallic strip n connected by a link s to a bimetallic strip p fixed at the lower end and heated by a current-carrying coil t. Variations of external temperature cause equal bending of the strips n, p and no movement of the arms h, g. Sufficient heating of the strip p by the coil t causes the arms h, g to move to the right, releasing the switch arm e which thereupon moves to the open position. Resetting is effected by a plunger u. The bimetallic members p, n in the form shown each comprise a pair of strips.
Patent GB-756773-A (GB)
Title: Improvements in roller tracks for the running rollers of articulated trough conveyors
IPC: B65G21/06
Filed: 1954-04-12
Abstract: 756,773. Endless conveyers; rail joints. GUTEHOFFNUNGSHUTTE STERKRADE AKT.-GES. April 12, 1954 [Aug. 7, 1953], No. 10661/54. Classes 78 (1) and 104 (2). The running rollers 1 of an articulated trough conveyer run on tracks 2 of L-section each composed of a series of rail sections, each section having its horizontal flange extended at its ends beyond the vertical flange to form a yielding tongue, the width of which decreases towards the free end, e.g. to a point. As shown, four identical rail sections are assembled between each of a series of supports 4 by struts 2a, 2b joining upper and lower tracks on each side of the conveyer, brackets 5, 6 on the support on which the adjacent ends of the sections rest, and plates 13 on the supports having slots 12 through which stop screws 11 on the struts 2a, 2b pass to provide limited angular movement in the vertical plane up to 2¢ degrees between each section and the support. Each rail section is mitred symmetrically at 8 so that at each joint the points 7 lie opposite to one another. A gusset plate 9 is located in the gap and is attached by a flange 10 to the support 4. Mitred edges 8 may be replaced by arcuate edges (Fig. 5, not shown), plate 9 correspondingly being of Norman Arch shape.
Patent GB-542136-A (GB)
Title: Improvements in dynamo electric machinery
IPC: H02K49/02
Filed: 1940-06-21
Abstract: 542,136. Transmitting mechanical power. ENGLISH ELECTRIC CO., Ltd., and CARNEGIE, H. S. June 21, 1940, Nos. 10674/40 and 5815/41. Drawings to Specification. [Class 38 (iv)] A dynamo-electric machine combination for running or loading an engine or machine under test comprises a dynamo-electric machine (motor or generator) and an electromagnetic slip coupling consisting of a field system inducing current in a relatively movable secondary system and control means acting on the field system or the secondary circuit to vary the slip of the coupling. The dynamo-electric machine may be a synchronous A.C. machine serving to drive the machine under test or absorbing the output of an engine under test in a supply system. Speed difference is accommodated by the electrical adjustment of the coupling; alternating current of variable frequency may be supplied to the coupling. An exciter may be incorporated. Means such as an auxiliary dynamo-electric machine or rectifier may be arranged to utilize the slip energy of the coupling, e.g. in a motor coupled to the principal dynamo-electric machine or to an auxiliary generator returning energy to the supply network. The arrangements illustrated employ a three phase winding on the secondary of the coupling, slip rings being connected to a variable resistance or a shunt type A.C. commutator. The principal dynamo-electric machine may be mounted on trannions for deflection against a biasing yoke or a transmission dynamometer may be incorporated. Specification 542,321 is referred to in the first Provisional Specification.
Patent GB-1174769-A (GB)
Title: Battery Charging Systems
Inventor: WILLIAMS MALCOLM
IPC: H02J7/24
Filed: 1966-03-11
Abstract: 1,174,769. Automatic voltage control. JOSEPH LUCAS (INDUSTRIES) Ltd. Feb.13, 1967 [March 11, 1966], No.10730/66. Heading G3R. A battery charging system comprises a generator 11 for charging the battery 12, the generator having a recirculating diode 19 connected across its field winding 18; a resistance chain 25, 26 connected across the battery and associated with a capacitor 28 which minimizes radio interference; a Zener diode 15 connected to the resistance chain for detecting the output voltage of the generator; and an amplifier 31, 29 controlled by the Zener diode 15 for controlling the conduction of a transistor 17 connected in series with the field winding 18 and a resistor 21 across the battery 12. The resistance value of resistor 21 is so chosen as to ensure that the amplifier will turn the transistor 17 between fully on and fully off conditions with a mark-space ratio determined by the battery voltage, this switching action being accomplished without the provision of a direct feedback circuit between the transistor 17 and the amplifier 31, 29.
Patent GB-792789-A (GB)
Title: Improvements in or relating to pipe couplings
IPC: F16L27/113
Filed: 1956-04-09
Abstract: 792,789. Pipe couplings. KEMP, J. A. (Marman-Products Co., Inc.). April 9, 1956, No. 10777/56. Class 99(1). A coupling for pipes 10, 10<SP>1</SP>, Figs. 1 and 2, having annular beads 11, 11<SP>1</SP>, comprises a segmental flanged collar 13<SP>1</SP> engaging the beads 11, 11<SP>1</SP>, and held in position by a sleeve 16, a sealing means 18 engaging the tubes 10, 10<SP>1</SP>, and the ends of sleeve 16, and a split collar 21 surrounding and supporting the sealing means 81. In Figs. 1 and 2 the collar 13<SP>1</SP> is formed of two segments and the sealing means 18 comprises a flanged sleeve of resilient material surrounding sleeve 16. The collar 21 is formed of two semicircular channel-shaped segments held in place by a band 25 which is spot-welded to the segments 21 and tightened by a readily disconnectable tightening means 43. The collar 21 is lined by a thin metal sleeve 23 the ends of which are flanged at 31 and spaced from the tubes 10, 10<SP>1</SP>, to allow for misalignment thereof. In a modification the sleeve 23 is omitted, the gaps between the segments 21 being bridged by thin metal tongues attached to the segments and in a further modification the gasket sleeve 18 is divided at its mid-point. In Fig. 9, the sealing means is formed by separate gasket rings 18a, the collar 21a being in direct contact with sleeve 16a. The rings 18a may have small cuff portions extending over the ends of sleeve 16a, and in Fig. 18 the cuff portions 20 are extended at 128 to seal against beads 30 formed on the sleeve 16, any pressure fluid leaking past the ends of sleeve 16 into the spaces 127 forcing the portions 129 of the gaskets against the outside of sleeve 16. In Fig. 13 the segments forming the collar 13<SP>1</SP> are held together and urged to closed position by a spring 141 fitted in an outer groove thereof.
Patent GB-116400-A (GB)
Title: Improvements in and relating to Motor Vehicles.
IPC: F16H37/08
Filed: 1917-07-26
Abstract: 116,400. Grice, A. G., and G. & V. R., Ltd. July 26, 1917. Change-speed gearing. -In motor-vehicles provided with driving gear of the type having a driven friction element connected by speed-reduction gearing to the pinion-carrying member of a differential gear, the friction drive, speed-reduction; and differential gear are carried upon the chassis frame, and the road wheels are mounted directly on the ends of the shaft portions of the differential flexible connexions being provided in said portions to accommodate spring mounting of the road wheels. Power is transmitted from the motor shaft to a transverse axle by an axially movable rim friction wheel c co-operating with a face friction disk for varying the speed ratio, and the driven friction element is connected by speed-reduction gearing d, e, to the pinion-carrying member f<1> of a differential gear, the relatively movable shaft portions of which distribute the power at or about the speed of the road wheels. The pinion c<3> driving the gear d is driven through a flexible coupling c<2> by the shaft c<1> on which the wheel c is mounted. The gears g, h of the differential are mounted on shafts i, provided with flexible connexions i<1>, i<2>, j<1>, j<2> and connected to the hubs l of the wheels m. Each hollow axle member k is cranked back and is flexibly connected to the chassis by a spring n. The variable speed friction transmission gear is of the kind described in Specification 21228/11.
Patent GB-217702-A (GB)
Title: Improvements in hedge cutting machines
IPC: A01G3/047
Filed: 1923-04-21
Abstract: 217,702. Allan, A. B. April 21, 1923. Hand - - operated clippers with multiple teeth. - Apparatus for cutting hedges, grass, &c. comprises a toothed disc or plate a fixed on a pin h on a bar g, and a rotary cutter b mounted loosely on the pin between the disc a and the bar g and driven by spur or bevel gearing actuated by means of a pivoted lever or bar j or a flexible shaft, the coacting cutting-edges of the cutter b and of the comparatively shallow V-shaped teeth on the disc a being approximately parallel. A ground wheel or roller may be mounted on a pin fastened to the disc a or pin h to adapt the apparatus for trimming grass edges. The cutter b has straight cutting- edges d, d<1> on both sides and its diameter is less than that of the disc a. The bars g, j are provided with adjustable handles s, s<1>, and the bar j is connected by a link k to a spur-wheel l carried by the bar g and gearing with a pinion m on the cutter b. According to a Provisional Specification, the cutter may be driven by an electric motor.
Patent GB-902118-A (GB)
Title: Asphalt composition and process for preparing same
IPC: C10C3/02
Filed: 1959-03-31
Abstract: Petroleum asphalts are reacted with 0,1 to 10% by weight of an acid of the formula Cn H2n (COOH)2 where n is an integer from 2 to 12 inclusive, or an inner anhydride or halide thereof.  Specified are succinic, glutaric, adipic, pimelic, suberic, azelaic, sebacic and brassylic acids and their anhydrides, chlorides, bromides, fluorides and iodides.  Residual oils and their derived straight reduced asphalts and also oxidized asphalts produced from the residual oils and the reduced asphalts are examples of the asphalts treated, acid reaction is carried out by heating at 150 DEG  to 550 DEG F.
Patent GB-180846-A (GB)
Title: Improvements in fire extinguishing and fumigating plants
IPC: A62C5/00
Filed: 1921-04-14
Abstract: 180,846. Hughes, W. April 14, 1921. Vaporizing by combustion; vapours, delivering.-In a plant for producing gases for fire-extinguishing or fumigating, of the type comprising a furnace, cooler, and scrubber, the furnace 1, which is provided with a water-jacket 9, has an upwardly-projecting take-off pipe 5 also provided with a water-jacket 11. The gas passes from the pipe 5 into horizontal sinuous cooling-pipes 16 of a cooler 2 of the water-circulation type, and thence through a pipe 6 into the lower end of a scrubber 3, which is provided near the top with both a perforated water-ring 18 and a central watersprinkler 19. Air is fed to the furnace through two downwardly-converging pipes 12 leading into a box 13 and thence through the interior of the bed 4 to the furnace grate 14.
Patent GB-735254-A (GB)
Title: Adjustable reclining chairs or like articles of furniture
IPC: A47C1/035
Filed: 1953-04-21
Abstract: 735,254. Seats. LORENZ, A. April 21, 1953 [May 23, 1952; Dec. 8, 1952], No. 10948/53. Class 52 (2). A reclining and rockable chair comprises a back-rest, having a rigid downward extension extending below the seat, and seat swingably pivoted to a stationary support, a controlling member pivoted to the support and controlled by the swingable back-rest through the medium of a first connecting means, the controlling member being so arranged that its pivotal connection with the support is in a plane below that of the pivotal connection between the controlling member and the first connecting means and pivoted links connecting the controlling member to the seat and to a leg-rest pivoted to the seat. As shown, the controlling member 42 comprises two crossed arms rigidly connected to one another and pivoted to the support at 44. The said member is connected by a first connecting means 50 to an extension 32 of the back-rest 28, by a second connecting member 56 to the seat 34 and by a controlling link 60 to the leg-rest 38. The back-rest 28 and seat 34 are pivoted to the support 24 at 30 and 36 respectively. As shown, the pivot 44 is below the pivot 52 and the pivot 62 is in front of, or in the same vertical plane as, the pivot 44 when the seat is in' normal position. In modifications the controlling member may take other forms, the connection between such member and the back-rest may comprise a number of links and the seat and .back-rest may be pivoted to the support on separate or on coaxial pivots.
Patent GB-562267-A (GB)
Title: Process for the manufacture of a crystallised, non-hygroscopic calcium salt of d-pantothenic acid
IPC: C07C233/46
Filed: 1942-08-07
Abstract: Sodium pantothenate is converted into the calcium salt by reaction with calcium chloride dissolved in an alcohol.  In examples, alcoholic calcium chloride is added to a solution of sodium pantothenate in a mixture of methyl and ethyl alcohol and also to the crude product obtained from b -alanine, sodium ethylate and d(-)-a -hydroxy-b  : b -dimethyl-g -butyrolacetone. Crystalline calcium pantothenate is obtained from the filtrate after removal of the precipitated sodium chloride.  Specification 552,036 is referred to.
Patent GB-115974-A (GB)
Title: Improvements in and connected with Roofs for Hangars, Factories and other Structures.
Inventor: WELLS EDMUND PERCY
IPC: E04B7/14
Filed: 1917-08-01
Abstract: 115,974. Wells, E. P. Aug. 1, 1917. Roofs and roofing; reinforced-concrete roofs.- The roof covering c for a hangar, factory, or other structure is laid directly on suspension members a, which may consist of iron bars of T or other section, or wire rope, wood, or reinforced concrete. The suspension members may be continued over supports between adjacent spans, but are preferably separately anchored, as shown for example in Fig. 2, where a T-bar a is shown secured to a stirrup h. Purlins b may be clipped to the metal or wooden members a and the covering c, such as corrugated iron, matchboarding, &c., secured thereto. For a concrete roof, the main rods m, Fig. 6, constituting the suspension. members proper, are laid in position, wire netting or mesh wire is next applied, and finally the concrete to form the supports k and roof covering l. Gutters s are provided at the centre under a cover t, which may be glazed, and there may also be added ties u, ventilators v and side glazing w. A floor g and windows may be inserted in the frame supports f.