baber/WOPTO huggingface dataset:
Patent GB-425399-A (GB)
Title: Improvements in and relating to electric converting apparatus
IPC: H02M5/00
Filed: 1934-11-14
Abstract: 425,399. Changing frequency. BRITISH THOMSON-HOUSTON CO., Ltd., Crown House, Aldwych, London. Nov. 14, 1934, No. 32798. Convention date, Nov. 15, 1933. [Class 38 (ii)] A frequency multiplying arrangement comprises a plurality of oscillatory circuits each including an inductance 16, 18, 20 and a condenser 15, 17,19 which is alternately charged to opposite polarities through groups of gridcontrolled valves 21-32 associated with the secondary windings 13, 14 of a transformer energized from the low frequency supply 10, the valves being sequentially operated in such manner that the several oscillatory circuits operate in staggered relationship, but combine to produce a continuous alternating current of the higher frequency in the load circuit 11 whilst each individual valve has a relatively prolonged deionization period between successive conducting periods. The control is effected by grid transformers 35, 36, 37 which may be energized from an independent source of appropriate frequency, or as shown from transformers 38, 39, 40 associated with the corresponding oscillatory circuits.
Patent GB-1115952-A (GB)
Title: Process for the separation of ammonia produced in medium and low pressure synthesizing plants
IPC: B01D53/14
Filed: 1965-07-30
Abstract: The reaction products from the synthesis of ammonia from nitrogen and hydrogen at 100 to 250 atmospheres are subjected to absorption in two stages, serially arranged, to separate ammonia by aqueous ammonia solutions containing 15 to 40 and 1 to 10% by weight of ammonia, respectively, the remaining water and ammonia in the gas being removed by condensation.  The absorption may be carried out at the same pressure as the synthesis.  The gaseous product from the absorption has an overall content of ammonia and water of 2000 to 10,000 p.p.m. (preferably less than 6000 p.p.m.) and may be purified further by condensation at - 20 DEG  to - 30 DEG  C., after which it contains 500 to 2000 p.p.m. of ammonia.  The ammoniated solution produced may be distilled to produce substantially anhydrous ammonia and aqueous ammonia solutions containing 15 to 40% and 1-10% by wt. respectively which are recycled to the absorption system.
Patent GB-165014-A (GB)
Title: Improvements in or relating to oil filters
IPC: B01D29/085
Filed: 1920-11-23
Abstract: 165,014. Wilson, W. T. Nov. 23, 1920. Filters having sheet filtering-materials; purifying liquids.-Oil is supplied by means of a floatsupported pivoted pipe 4 from a container 2 to a filter 9, of the type in which the oil is bubbled through water. A cock 3 at the end of the pipe 4 delivers into a funnel 7 provided with an inclined gauze 8, and the oil rises from the bottom of the funnel through fabric filters on foraminous plates 10 and is discharged through a nozzle 12 into a filtered-oil container 1.
Patent GB-189656-A (GB)
Title: Improvements in or relating to ignition devices for use in explosion motors
IPC: H01T13/24
Filed: 1921-12-09
Abstract: 189,656. Eldridge, F. L. Dec. 9, 1921. Sparking - plugs. - Plugs of the type having two or more insulated conductors 17, which may be cut off from the combustion space by means of a rotatable valve 20, have these conductors terminating within the chambers or recesses 13 at the one end and emerging at the other end at the side of the insulator where they are fitted with contactpieces for engaging a wiper 30. An annular ridge 24 at the outer end of the insulator forms a seat for a disc 25 on the spindle 21 of the valve disc 20. The disc is secured to an insulating cap 23 in which is screwed the stem 34 of a member which has formed with it the wiper 30 and a spherical head 35. Gas-tightness of the valve 20 is ensured by providing a spring 26 beneath the disc 25. Modifications are described in which the rods 17 are inclined to the axis of the plug, and are threaded into the insulation; the wiper 30 may be in two parts, one having a contact penetrating the recess into which projects the conductor 17. The cap 23 may extend downwardly around the insulator and may entirely enclose the wiper 30. The casing instead of being closed at the inner end as shown may be tubular, the insulator extending to the end. The valve disc is in this case sufficientlv large to make contact with the casing, the spark. as before, passing between the end of the insulated rod and the edge of the opening 22 in the disc. The passages 16 in the casing may be lined with insulation, or tubular projections for this purpose may be formed on the insulator 11. The spherical head 35 is pressed between plugs 36, 37 by a spring 41. The plug 37 is undercut to allow introduction of the head 35 through a slot in the tube 38.
Patent GB-652199-A (GB)
Title: Improvements relating to screw-jack and like mechanisms
IPC: F16H25/24
Filed: 1948-12-23
Abstract: 652,199. Lifting-jacks. WILD & CO., Ltd., M. B., and BOUCHER, J. W. Dec. 23, 1948, No. 33168. [Class 78 (iii)] [Also in Group XXIV] In a screw jack, clamping means in engagement with the screw is adapted to co-operate with a part formed on or secured to the nut so that in the event of relative free axial movement of the nut and screw consequent upon stripping of the thread of the nut, the clamping means becomes wedged between the screw and the said part, thereby rendering the jack inoperative. Fig. 1 shows the application to a jack comprising a nut b axially movable along a screw a rotated by gear-wheels h. A member d engaging the screw is located in a socket c formed in the nut and is held in position by a cover e and secured against rotation by pegs g. In the event of stripping of the threads of the nut b, the nut slips axially to a small extent relatively to the screw whereby the member d becomes wedged between the socket and screw so as to stop rotation of the screw. The member d comprises two parts held together by a spring f. Fig. 2 shows the application to a jack comprising an axially-movable but non-rotatable screw a and a nut b rotated by gear-wheels h. The socket c is secured to the nut by bolts i and the member d is connected to the socket by a peg g.
Patent GB-869490-A (GB)
Title: Methods of forming the outer covering of golf balls and products thereof
IPC: B29C45/14
Filed: 1959-10-01
Abstract: The outer covering of a golf ball is formed by a liquid urethane polymer which is injected into a mould containing a spherical core carrying rubber strand wound under tension.  In one example 100 parts by weight of a saturated urethane polymer of the polyether type containing 4-4,3% of isocyanate groups by weight is mixed with eleven parts by weight of a diamine curing agent and twenty parts by weight of a whitener, titanium dioxide.  The mixture is injected at 200 p.s.i. to fill the mould and penetrate the rubber windings at 95 DEG F., and on removal from the mould the ball is allowed to cure at room temperature for two weeks.  The mould and the injection material may be heated up to 175 DEG F. in order to decrease the necessary moulding pressure.
Patent GB-521508-A (GB)
Title: Improvements relating to centrifugal separators
IPC: B04C5/14
Filed: 1938-11-17
Abstract: 521,508. Centrifugal separators. CORINTH, Ltd. Nov. 17, 1938, No. 33468. Convention date, Nov. 24, 1937. [Class 23] Centrifugal apparatus for separating solid or liquid particles from gas or vapour consists of a container 10 of substantially circular cross section provided at its top with a tangential inlet 13 and a clean gas axial outlet 15. About halfway up the container 10 is an outlet 16 extending half-way round the wall, and widening in the direction of rotation of the contents of the container. Liquid 12 in the bottom of the container is rotated by the whirling of the entering gas or vapour and rises up the container wall. The liquid or other particles thrown out from the whirling gas or vapour join the liquid 12 and eventually pass through the outlet 16 into the collecting trough 17. The diverging outlet 16 may have its upper side horizontal as shown, or the lower side may be horizontal, or both may be inclined to the horizontal.
Patent GB-425468-A (GB)
Title: High-frequency coil with adjustable inductance value
IPC: H01F17/04
Filed: 1933-06-06
Abstract: 425,468. Inductances. VOGT, H., 69, Steglitzer Strasse, Lichterfelde, Berlin. June 6, 1933, No. 33507/34. Divided out of 425,296 under which a Specification was laid open to inspection under Sect. 91 of the Acts, Dec. 22, 1933. [Class 37] A low-loss low-permeability high - frequency inductance core of insulated magnetic particles for broadcast receiver coils has the inductance value of the unit adjusted within small limits by varying the cross-section of the magnetic path through the core at one or more places. The core consists of at least two members which are slidden or rotated with respect to each other without varying their distance apart. In one construction, the fixed core part 45 houses a multi-layer coil 46, the movable core part 48 being adjusted from outside a screening box 47 by means of a slot and screw 50, the part 48 being carried on a movable insulating bracket 49.
Patent GB-938678-A (GB)
Title: Method of washing crockery and crockery washing machine thereof
IPC: A47L15/06
Filed: 1962-09-03
Abstract: 938,678. Dish-washing machines. O. MORI, and SOC. TOSCANA INDUSTRIA CUCINE ELETTRODOMESTICI. Sept. 3, 1962 [Sept. 9, 1961; Feb. 10, 1962], No. 33669/62. Class 138 (1). In a dishwashing machine a plurality of buoyant solid bodies, which are retained in the machine by a grating 63 over the waste pipe 46, are projected against the dishes by a rotary impeller 55 which is disposed at the bottom of the washing chamber 42. The impeller is mounted on a motor shaft 52 and may be rotated in the reverse direction to force water down the waste pipe. The water is heated by an electrical heating element 82.
Patent GB-474324-A (GB)
Title: Means for mounting electric immersion heaters in containers
IPC: H05B3/06
Filed: 1936-12-10
Abstract: 474,324. Jointing tubes to plates. HAUSSAUER, L. P. Dec. 10, 1936, No. 33977. [Class 99 (i)] [Also in Group XI] An immersion heater is mounted in an elongated opening in a container 2 by means of a clamping plate 8 integral therewith and which screws into a fixing plate 3 of a shape and dimensions such that it can be passed through the opening and then turned to overlap the edge of the opening. Sealing rings 10, 11 are arranged between the plates and the container. The opening in the container is formed by a circular part 1 and circular parts 1a. To retain the fixing plate in position it is provided at one end of its major axis with ears 16 and a protuberance which engage the edge 1a of the opening and at the other end of its major axis with upstanding clips 18 which can be bent over to grip the corresponding edge of the opening. The portions of the plates overlapping the edge of the opening are made thin and of manganese bronze so that the plate will take up the shape of the tank. Specification 397,709 is referred to.
Patent GB-823177-A (GB)
Title: Viscosity stabilized oxidised synthetic polymeric drying oil solutions
IPC: C08K5/05
Filed: 1957-10-31
Abstract: Solutions of oxidized drying oils comprising polymers or copolymers of conjugated dienes having 4 to 6 carbon atoms in hydrocarbon solvents having kauri-butanol values of at least 40 are viscosity stabilized by dilution with 1 to 25% by weight of an alcohol containing 1 to 9 carbon atoms.  Specified dienes are butadiene, isoprene, dimethyl butadiene, piperylene and methyl pentadiene. Specified copolymer forming substances are styrene, p-methyl styrene, dimethyl styrene, diethyl styrene, acrylonitrile, methacrylonitrile, methyl acrylate, methyl methacrylate, vinyl isobutyl ether, methyl vinyl ketone and isopropenyl methyl ketone.  Catalysts specified for the polymerization are benzoyl peroxide and cumene hydroperoxide. Specified hydrocarbon solvents are benzene, toluene, hemi-mellitene, pseudocumene, mesitylene, propyl benzene, cymene, ethyl toluene, methyl ethyl benzene, xylenes, Varsols and Solvesso (Registered Trade Mark).  Specified alcohols include the normal aliphatic alcohols, isopropyl alcohol, diacetone alcohol, acetyl carbinol, trimethyl carbinol and benzyl alcohol.  The oils may be oxidized by air-blowing solutions thereof in the hydrocarbon solvents.  The examples describe the polymerization of butadiene and styrene to produce a drying oil which is oxidized whilst in solution in a hydrocarbon solvent by blowing with oxygen, the solutions being viscosity stabilized by addition of N-butanol, isopropanol or diacetone alcohol.  The examples also describe the production of varnishes by addition of titanium dioxide to the stabilized solutions.
Patent GB-424086-A (GB)
Title: Improvements in or relating to rolling mills
IPC: D04B1/14
Filed: 1934-12-04
Abstract: 424,086. Securing sleeves on shafts; universal joints. KRUPP GRUSONWERK AKT.-GES., F., Buckau, Magdeburg, Germany.-(Assignees of Andrieu, B. ; 11, Bertastrasse, Magdeburg, Germany) Dec. 4, 1933, Nos. 34094 and 34095. Convention dates, Dec. 2, 1932 and Jan. 28, 1933. [Class 80 (ii)] [See also Group XXII] Journal sleeves 5 and 22 of rolling-mill rolls are shaped at their outer ends to form couplings. The sleeve 5, Fig. 5, may be flattened at its outer end to form the plate of the usual universal couplings. The sleeves 5 &c. have a cylindrical or conical seat on the roll journals and are secured thereon by a wedge 36, Fig. 5, or screw 41, Fig. 10, and can be loosened by the screw thread 38 in the bore 37. The sleeves are positively connected with the rolls by diametral tongue-and-groove connections 49, Fig. 10. In the coupling shown in Fig. 10 the sleeve 43 has fork ends 43<1> receiving the flattened end of the universal coupling spindle 42 the fork ends 43<1> being prevented from springing apart by a ring 44 which also secures the inner ring of the roller bearing.
Patent GB-508472-A (GB)
Title: Improvements in impulse transmitters of the dial type for use in telephone or like systems
IPC: H04M1/31
Filed: 1938-01-01
Abstract: 508,472. Impulse transmitters; clutches. AUTOMATIC TELEPHONE & ELECTRIC CO., Ltd. (Associated Electric Laboratories, Inc.) Jan. 1, 1938, No. 34130/37. Drawings to Specification. [Class 40 (iv)] [Also in Group XXIV] The clicking noise due to the passage of the pawl of a dial transmitter over the teeth of the ratchet wheel is prevented by (1) mounting a resilient ratchet wheel at the side of the normal ratchet wheel with the sloping edges of the teeth of the resilient wheel standing slightly above the corresponding edges of the normal wheel, or (2) providing the nose of the pawl with a resilient inset. The resilient material may be synthetic, rubber, e.g. Thiokol which is not effected by lubricant. In both' cases, the pawl makes metal-to-metal contact with the ratchet wheel when in driving engagement therewith.
Patent GB-1377290-A (GB)
Title: Process for the production of oxabicyclic alkenes
IPC: C07D313/06
Filed: 1972-07-21
Abstract: 1377290 Oxa-bicyclic alkenes HAARMANN & REIMER GmbH 21 July 1972 [21 July 1971] 34146/72 Heading C2C Oxa-bicycloalkenes of general Formula (II): in which R 1 , R 2  and R 3  are H, CH 3 - or C 2 H 5 -, n is an integer of from 9 to 13, and m and p are 0 or 1, are produced by reacting a saturated cyclic ketone having 11-15 ring carbon atoms with a compound of formula in which when m and p are both 0, R 4  is a radical RCO derived from an aliphatic carboxylic acid RCOOH having 1-6 carbon atoms and when m and/or p is 1, R 4  is RCO or H, in a radically initiated reaction, treating the resulting reaction mixture with a catalytic quantity of an acid catalyst, and recovering the desired oxabicycloalkane from the reaction mixture. The preferred initiator is di-tert.-butyl peroxide. In the examples: (1) cyclododecanone is reacted with (a) allyl alcohol, (b) allyl acetate, (c) 3- buten-1-ol, (d) 1-buten-3-ol, (d) 2-methyl-1- propen - 3 - ol, (c) 2 - methyl - 1 - buten - 3 - ol, (f) 1 - penten - 3 - ol, (g) 2 - methyl - 1 - buten- 4-yl acetate, (h) vinylacetate and (j) isopropenyl acetate; (2) cycloundecanone is reacted with allyl alcohol; and (3) cyclopentadecanone is reacted with allyl alcohol. Long lists of other starting materials are given.
Patent GB-977297-A (GB)
Title: Fishing rod
Inventor: REID ROBERT HIVNOR
IPC: A01K87/00
Filed: 1961-09-25
Abstract: In a tubular fishing rod at least one of the wall surfaces has a concave profile so that it increases in diameter from the tip to the butt at an increasing rate.  The thickness of the wall may increase uniformly.  The part of the rod near the butt may have a profile that increases uniformly or at a decreasing rate.  The rod is made by wrapping a fibre glass fabric blank impregnated with plastic material around a mandrel having a concave profile, one edge of the fabric having a concave shape.
Patent GB-513034-A (GB)
Title: Improvements in valves for high pressure
IPC: F16K39/02
Filed: 1937-12-10
Abstract: 513,034. Valves. I. G. FARBENINDUSTRIE AKT.-GES. Dec. 10, 1937, No. 34270. Void. Convention date, Dec. 24, 1936. [Class 133] A lift valve for dealing with very high pressures has the valve spindle extended, beyond the point at which the actuating member is connected, into a fluidtight chamber to which conduit pressure is admitted under the control of a manually actuated auxiliary valve to balance the pressures acting on the spindle. In the form shown the spindle b is connected by a crosshead i and rods h to a nut-member rotatable on a fixed screw by a handle g. Conduit pressure is admitted to the balancing chamber by an axial passage in the spindle controlled by a valve housed in the end of the spindle and operable by a spindle e. In a modification the spindle e is made in two telescoping parts and provision is made for venting the balancing chamber. When dealing with viscous fluid a different fluid at substantially the same pressure may be used in the balancing chamber.
Patent GB-870548-A (GB)
Title: Improvements in or relating to regulating arrangements for controlled metal vapour electric arc discharge devices
Inventor: DALE SAMUEL HOWARD
IPC: H02M7/15
Filed: 1958-10-27
Abstract: 870,548. Transistor pulse generating circuits GENERAL ELECTRIC CO. Ltd. Oct. 16, 1959 [Oct. 27, 1958], No. 34319/58. Class 40(6) [Also in Group XXXV] A rectangular voltage waveform, suitable for the grid control of a mercury arc rectifier and whose phase is adjusted by displacing the leading edge, is produced in a circuit including a thyratron or a transistor device. Sinusoidal A.C. 7 and adjustable D.C. 5 are fed to the grid of thyratron 1 (Fig. 1) which has in its anode circuit load resistor 2 and the secondary of squarewave transformer 3 providing a rectangular output voltage from input 4, A.C. 7 lags behind A.C. 4 in phase. The phase of the leading edge of the rectangular voltage developed across resistor 2 and appearing in output circuit 10 is adjusted by varying D.C. 5. A controlled silicon rectifier may replace the thyratron (Fig. 5 not shown) and a zero diode may replace grid stopper resistance 8. A modification employing two thyratrons in a full-wave embodiment in a fullwave arrangement is described (Fig. 2, not shown) in which the output is obtained through a transformer, instead of across resistor 2, and a transformer reset device 36 is included, identical with that in Fig. 4 and comprising rectifier 40, resistor 39 and a source of A.C. In a further embodiment (Fig. 3, not shown) thyratron 1 in the half-wave embodiment is replaced by a transistor. The output is taken through a transformer, and a rectifier protects the transistor from high reverse voltages. Square wave transformer 3 may be dispensed with by chopping a D.C. input into square waves: in Fig. 4 transistor 24 has A.C. source 7 and D.C. source 5 in its base-emitter circuit and its collector is connected to the emitter of transistor 28 having A.C. source 30 and D.C. source 33 in its base-emitter circuit. A.C. 7 leads the rectangular waveform produced by transistor 28 by 90 degrees. The width of the rectangular output pulse at transformer 26 can be varied from a few degrees to almost 360 degrees, transistor 24 cutting off the unwanted trailing edge. Transistors 24 and 28 may be in parallel (Fig. 6, not shown), when A.C.7 lags behind A.C.30 by 90 degrees and transistor 24 provides a periodic short for the base input to transistor 28. The output of transistor 28 may be amplified before passing to output transformer 26. The embodiments of Fig. 4, and Fig. 6 (not shown) produce a phase shift of the leading edge of up to 180 degrees but this may be increased by connecting a saturable choke in series with transistor 28. The choke has a reset winding fed with D.C. or A.C. Transistor 24 may then be dispensed with and the D.C. input to transistor 28 need not be variable.
Patent GB-930728-A (GB)
Title: Rotary piston flow meter
IPC: G01F3/10
Filed: 1961-09-25
Abstract: 930,728. Rotary meters. BOPP & REUTHER G.m.b.H. Sept. 25, 1961 [Feb. 24, 1961], No. 34333/61. Class 110 (2). A rotary flowmeter comprises a pair of intermeshing rotors 8, 9, preferably of oval profile, fitted with carbon bushes 10, 11 for rotation on fixed spindles 5, 6 within a measuring chamber 3 closed at its upper end by a cover 4. The upper ends of the spindles are coned and are forced into coned holes in domed portions 17, 18 of the cover 4. The rotors 8, 9 are formed with extensions on which are formed or fitted pinions 15, 16 which through slots in the domed portions mesh with pinions 151, 16<SP>1</SP> mounted in the dry part of the meter and through gearing 19 and a shaft 20 drive the counter 21. Axial bores 12 and radial bores 14 in the fixed spindles permit of effective lubrication between the spindles and their carbon bushes.
Patent GB-1298254-A (GB)
Title: Mixed silver halide photographic emulsions
IPC: G03C1/015
Filed: 1970-07-15
Abstract: 1298254 Mixed silver halide photographic emulsions FUJI PHOTO FILM CO Ltd 15 July 1970 [18 July 1969] 34347/70 Heading G2C A process of preparing a mixed silver halide photographic emulsion comprises adding (A) an aqueous solution of water-soluble silver salt and (B) an aqueous solution of water-soluble alkali metal halide simultaneously and gradually to (C) an aqueous solution containing gelatine or a gelatine derivative in the presence of a further water-soluble alkali metal halide while maintaining the concentration of silver ions in the gelatine containing solution at a constant value of from 10<SP>-6</SP> to 10<SP>-10</SP> mole/litre, reducing the silver ion concentration to less than one half of the former value after from one twentieth to one half the total silver salt solution has been added, continuing the addition at this reduced concentration of silver ion to form a mixed silver halide emulsion, removing water-soluble salts from the emulsion, and chemically sensitizing the emulsion with a chemical sensitizer comprising at least a gold salt, which may be potassium chloroaurate, auric trichloride, potassium aurithiocyanate or potassium aurothiocyanate. A sulphur sensitizer e.g. sodium thiosulphate pentahydrate and/ or a reduction sensitizer may also be present. Solution (A) and solution (B) may be added to solution (C) over 6-60 minutes. The mixed silver halide is preferably silver iodobromide or silver chloroiodobromide. Solution (B) may contain alkali metal bromide and solution (C) may additionally contain alkali metal iodide or chloride. Solution (B) may contain alkali metal bromide and iodide and, optionally, chloride and solution (C) may contain no alkali metal halide. Gelatine derivatives referred to are succinic gelatine, maleic gelatine and phthalic gelatine. The emulsion has a very narrow distribution of grain sizes and reduced fog formation when chemically sensitized with at least a gold salt. The grains are predominantly octahedral.