baber/WOPTO huggingface dataset:
Patent GB-1076834-A (GB)
Title: Improvements relating to thermostats
IPC: G05D23/13
Filed: 1964-06-17
Abstract: 1,076,834. Temperature responsive actuating elements. F. NALLINGER. June 17, 1964 June 20, 1963], No. 25140/64. Heading G1D. [Also in Division F2] A thermostatic unit for use in cooling systems for internal combustion engines comprises a valve 16 and two temperature responsive actuators T n , T h  which respond at different predetermined temperatures and which are adjustably arranged in the flow of the fluid cooling medium and coaxial with each other so that in use the actuators operate singly or in conjunction with each other to allow the valve to operate at a higher or lower temperature e. g. for use under summer or winter conditions. T n  is so called "summer" thermostat with an opening temperature of e. g. 75C. and T h  is a so called "winter" thermostat opening at e. g. 85 C. The actuators may be of bellows form or of the wax-filled type. The actuators are arranged to act in series and are carried by a screw-threaded spindle which may be axially adjusted by use of a handle 41 on an externally and internally screw-threaded bush 40. The arrangement includes a valve 45 held by springs 46, 47 against its seat 48 between an inlet 51 for water and an outlet connection 52 to the vehicle radiator, and also a by-pass connection 53 which may be closed by a plate 43 fixed by bolts 44 to the valve 45, the plate contacting the actuator T n . The unit is shown adjusted for summer operation and the actuator T n  is first operated as the temperature rises to open the valve 45 and subsequently the actuator T h  can operate to open the valve 45 fully and close the by-pass connection 53. For winter operation the actuator T n  is spaced from the plate 43 so that its first opening movement is ineffective, the valve 45 then opening with the operation of the actuator T h . In an alternative arrangement (Fig. 4) the valve (57) is arranged to move between a seat (61) which closes the radiator connection (58) and a seat (63) closing a by-pass connection (55). The so called "winter" actuator (T h ) is disposed on the outflow side of the valve (57) and is thus unaffected until the valve is opened. For summer operation both actuators (T n  T h ) operate in series to open the radiator connection and close the bypass connection. For winter operation the so called "summer" actuator (T n ) is disposed by axial adjustment so that the first part of its opening stroke is ineffective, but subsequent expansion opens the valve (57) allowing the water to reach the so called "winter" thermostat (T h ) which will then open the valve fully.
Patent GB-171673-A (GB)
Title: Improvements in looms for weaving ribbons or the like
IPC: D03D35/00
Filed: 1921-09-23
Abstract: 171,673. Chorlier, C. Nov. 19, 1920, [Convention date]. Beat-up motions.-In ribbon-weaving looms &c with a vertical warp, as shown, or with an horizontal warp the batten is actuated from the main shaft by means of a crank disc C and connecting- rod D.
Patent GB-481605-A (GB)
Title: Improvements in or relating to valve control systems
IPC: F16K31/46
Filed: 1936-09-17
Abstract: 481,605. Bowden mechanism. MANLOVE, ALLIOTT, & CO., Ltd., and HODGES, J. M. Sept. 17, 1936, No. 25323. [Class 80 (iii)] [Also in Group XXIX] Bowden mechanism for operating a valve 2 through levers 3, 6 connected to its opposite ends comprises a solid stainless steel wire 5 threaded at its ends to receive adjustable ferrules which abut the levers. Grease-gun nipples are fitted on the flexible outer casing of the wire and steam, water or the like is excluded from the casing by rubber or like concertina connections at its ends,
Patent GB-600106-A (GB)
Title: A detachable device for positioning and centering the wheels of bicycles, and the like
Filed: 1945-10-01
Abstract: 600,106. Vehicle wheels. TYDEMAN G. Oct. 1, 1945, No. 25388. [Class 144 (i)] A device for positioning or centering a bicycle wheel between the forks consists of a spring clip formed by shaping a metal blank to provide an arched channel C, having aligned end-slots B to fit over an adjacent pair of spokes, and conical edge-beads D. As shown in Fig. 5, the channel C is sprung up against the wheel rim with the parts D engaging the side-walls of the tyre. The wheel is then partially rotated to jam the beads D evenly between the forks whilst the wheel is being tightened on the axle.
Patent GB-150730-A (GB)
Title: Improvements in time-limit relays for use in electrical supply systems
IPC: H01H71/44
Filed: 1920-09-03
Abstract: 150,730. Metropolitan-Vickers ELectrical Co., (Assignees of Wensley, R. J.). Sept. 3, 1919, [Convention date]. Time-limit devices; electric-motor actuation.- A relay, with an adjustable time-limit, for maintaining an electric traction supply for a given time after the demand has ceased, consists of a cam member 11 on a shaft 10 carrying a magnetic clutch disk 9 which, when the clutch is energized, connects the shaft to the slow-speed wheel 6 of a train of reduction gear 6, 5, 3, 4 driven by a small fan motor 1. After a certain time depending upon the initial position of an adjustable back-stop 12 against which the cam member normally rests, the cam is driven by the gear train to press a contact 13 against a fixed contact 14. When the clutch is de-energized, the shaft 10 is uncoupled and, under the action of the spiral spring 15, is brought back, unretarded, to the initial position in which the cam rests against the back-stop.
Patent GB-1506070-A (GB)
Title: Method of producing sulphur-containing l-amino acid
IPC: C12P13/04
Filed: 1976-06-18
Abstract: 1506070 Sulphur-containing aminoacids AJINOMOTO CO Inc 18 June 1976 [19 June 1975] 25496/76 Heading C2C Aprocess for making a #-substituted-L-α-aminopropionic acid or a γ-substituted-L-α-aminobutyric acid in which the substituent on the #- or γ- carbon atom contains a sulphur atom attached to this #- or γ-carbon atom comprises reacting (a) a γ-substituted-L-a-aminopropionic acid or a α-substituted-L-α-aminobutyric acid or salts thereof with (b) a sulphur-containing compound containing an active-hydrogen atom and at least one unshaped electron pair associated with the sulphur atom or a salt of such a compound; the reaction being effected in an aqueous medium containing methionase produced by micro-organisms whereby the original #- or γ- substituent on compound (a) is replaced by the entire nucleophilic moiety of compound (b). Compound (a) may be of the formula where n is 1 or 2 and X is a halogen atom or a group of formula R 1 O-, R 2 S-, R 2 SO-, R 2 SO 2 - or HSO 3 -, wherein R 1  is a hydrogen atom or an acyl, alkyl or aralkyl radical and R 2  is a hydrogen atom or an alkyl, aryl or aralkyl radical or a group of formula or Compound (b) may be hydrogen sulphide, hydrogen disulphide, sulphorous acid, a mercaptan, a sulphenic acid or a sulphinic acid or salts of such compounds.
Patent GB-601343-A (GB)
Title: Improvements in structures for holding electric lamps
IPC: F21Y101/00
Filed: 1945-10-02
Abstract: 601,343. Supporting lamps. WARD, N. H. N. Oct. 2, 1945, No. 25533. [Class 75(iii)] [Also in Group XXXVI] An electric lamp holding structure has one or more arms of strip material channelled to accommodate portions of electric wires, the channel being filled or covered with suitable material to conceal the wires. A chandelier may be supported from the ceiling by a copper tube 1, Fig. 6, arms 7 being centrally apertured and soldered, or welded, to the tube which, is bored as at 4 to allow the conductors 3 to be led into the channels 8. The conductors 3 in the channel are held by putty, bitumen or cement 9, or by a plastic strip 19, Fig. 5, which may, according to the Provisional, Specification, consist of cellulose tape, and the filling or covering may be painted to harmonise with the rest of the structure. The arms may be made of copper and may be bent at the ends to form artistically shaped lamp holding portions. Reference has been directed by the Comptroller to Specification 516,981.
Patent GB-1394234-A (GB)
Title: Conveyor for loose materials
IPC: B65G65/06
Filed: 1972-06-01
Abstract: 1394234 Endless conveyer for loose materials M MANNELLI and A POLVERINI [trading as MEV SAS DI MANNELLI POLVERINI & C] 1 June 1972 25632/72 Headings B8A and B8E A conveyer for reclaiming loose materials from heaps comprises a frame 11 coupled in a vertical plane to a structure 1 and three rollers 15, 16, 17 supported in the frame at the vertices of an obtuse angled triangle supporting a conveyer belt 18, one roller 17 being driven by an electric motor 19, the frame also being hinged on a vertical axle and driven about this vertical axle to make angular to-and-fro excursions, the frame being raised and lowered by a rope 32 driven by an electric motor 30 which is controllable by electromechanical sensing members (e.g. relays) controlling its operation according to the power absorbed by the electric motor driving roller 17.
Patent GB-721336-A (GB)
Title: A process for the production of substituted alkanes and the resulting substituted alkanes
Filed: 1952-10-15
Abstract: Substituted alkanes having two hydroxy-aryl groups attached to a single carbon atom of the alkane radical are prepared by reacting in an acid medium a phenolic compound with an aromatic hydroperoxide of the general formula <FORM:0721336/IV (b)/1> wherein Ar is an aryl or alkaryl group, R1 is a hydrogen atom or an alkyl group and R2 is an alkyl group.  The hydroperoxide reactant is preferably an a ,a -dialkylarylmethyl hydroperoxide and in the reaction products the hydroxyl groups generally occupy para-positions in the aromatic nuclei.  Strong mineral acids (e.g. those with a dissociation constant greater than 10-3) and acid-acting condensing agents may be used for acidifying the reaction mixture, examples of strong acids being phosphoric, sulphuric, hydrobromic, hydrofluoric and nitric acids while preferable acid-acting catalysts are hydrogen halides (e.g. hydrogen chloride), particularly when used in the anhydrous condition, for example 1-20 per cent and more preferably 3-10 per cent by weight of hydrogen chloride based upon the yield of di-(hydroxyaryl) alkane may be added to the reaction mixture.  In addition to the acid agents secondary catalysts such as alkyl mercaptans (e.g. ethyl mercaptan) may be used while liquid diluents such as water and organic solvents (e.g. hydrocarbons, alcohols and ethers) may also be present, if desired the acid catalyst being dissolved in such a diluent before its admixture to p  one or both of the reactants.  The reaction is preferably carried out with a molar ratio of phenolic reactant to aromatic hydroperoxide of at least 1 : 1 and at temperatures between 0 DEG  C. and 70 DEG  C. for about 24 hours (or for shorter times, e.g. 8 hours, when conducted in presence of secondary catalysts), a higher temperature towards the end of the reaction being advantageous. In a preferred method of operation the hydroperoxide or a solution thereof is added slowly to a solution or suspension of phenolic reactant in a solution of acid catalyst at an initial temperature below 10 DEG  C. rising later to room temperature or above as the reaction proceeds.  The examples describe the preparation of 2,2-di-(4-hydroxyphenyl) propane by the addition of cumene hydroperoxide to a solution of phenol in hydrochloric acid, sulphuric acid (with and without ethyl mercaptan), ethyl alcohol and toluene respectively, the latter two solvents being first saturated with hydrogen chloride.  The carrying out of the process according to the method of Specification 705,640 is disclaimed.  2 - Phenyl - 2 - (4 - hydroxyphenyl) - propane is formed as a by-product during the preparation of 2,2-di-(4-hydroxyphenyl)-propane.
Patent GB-754622-A (GB)
Title: Organosilicon esters
IPC: C10M107/50
Filed: 1954-09-06
Abstract: The invention includes ester-ended polysiloxanes of the formula <FORM:0754622/IV(a)/1> where R is a monovalent hydrocarbon radical, n is an integer from 3 to 18 and m is an integer.  They are prepared by copolymerizing the corresponding disiloxane (see Group IV (b)) with dimethylpolysiloxane cyclics in the presence of an acid catalyst. Examples of the radical R are methyl, ethyl, propyl, 2-ethylhexyl, octadecyl, cyclopentyl, cyclohexyl, vinyl, allyl, phenyl, tolyl, naphthyl and xenyl.  In the examples: (3) bis-(gamma-acetoxypropyl)-tetramethyl disiloxane is copolymerized with octamethylcyclotetrasiloxane in the presence of conc. sulphuric acid to give a mixture of products of the above formula where R is methyl, n is 3 and m is 1, 2 and 3; (6) bis-(4-acetoxybutyl) tetramethyl disiloxane is similarly copolymerized to give a mixture wherein R is methyl, n is 4 and m is 1, 2, 3 and 4, and a residue in which m is greather than 4.ALSO:The invention comprises ester-ended siloxanes of the formula <FORM:0754622/IV(a)/1> where R is a monovalent hydrocarbon radical, n is an integer from 3 to 18 and m is 0 or an integer.  The disiloxanes, i.e. when m = 0, are best prepared by reacting the appropriate bis-(haloalkyl) tetramethyl disiloxane with a metal salt RCOOM, where M is preferably an alkali metal and the halogen is preferably bromine. The siloxanes in which m is 1 or more are prepared by copolymerizing the corresponding disiloxane with dimethylpolysiloxane cyclics in the presence of an acid catalyst, e.g. sulphuric acid.  Examples of the radical R are methyl, ethyl, propyl, 2-ethylhexyl, octadecyl, cyclopentyl, cyclohexyl, vinyl, allyl, phenyl, tolyl, naphthyl and xenyl.  In the examples (1) bis-(gamma-propyl) tetramethyldisiloxane is prepared by reacting gamma-propyl trimethylsilane with sulphuric acid; and (2) is refluxed with potassium acetate in glacial acetic acid to give bis - (gamma - acetoxypropyl) - tetramethyl disiloxane; (3) the product of (2) is copolymerized with octamethylcyclotetrasiloxane by stirring in the presence of conc. sulphuric acid giving a mixture of products of the general formula <FORM:0754622/IV(a)/2> in which m has the values 1, 2 and 3; (4) bis-(4-bromobutyl) tetramethyldisiloxane is prepared by reacting 4-bromobutyltrimethylsilane with sulphuric acid; and (5) is refluxed with potassium acetate in glacial acetic acid to give bis-(4-acetoxybutyl) tetramethyl disiloxane; (6) the product of (5) is copolymerized with octamethylcyclotetrasiloxane giving a mixture of compounds of the formula <FORM:0754622/IV(a)/3> in which m is 1, 2, 3 and 4, and a residue in which m is greater than 4; (7) the compound Me3Si(CH2)5Br is reacted with H2SO4 to give the 5-bromopentyldisiloxane as in (1) and is reacted with potassium stearate to give the compound  <FORM:0754622/IV(a)/4> 4-Bromobutyltrimethylsilane is prepared from phosphorus tribromide and 4-hydroxybutyltrimethylsilane.  The haloalkyl trimethylsilanes may also be prepared by preparing a monoGrignard of dihalides of the formula X(CH2)nX and reacting it with trimethylchlorosilane.
Patent GB-534704-A (GB)
Title: Improvements in and relating to methods of securing glass bowls in lanterns
IPC: F21V17/00
Filed: 1939-09-16
Abstract: 534,704. Securing globes &c. to holders. BRITISH THOMSON-HOUSTON CO., Ltd., and MAXTED, R. Sept. 16, 1939, No. 25992. [Class 75 (ii)] In a lamp in which the upper edge of a bowl 1 is secured in proximity to a canopy 4 or the like by means of a retaining ring 3 acting against a flanged peripheral part of the bowl, the flanged part 7 is located a short distance from said upper edge, and the bowl 1 is held in the ring 3 by means of a locking ring 5 bearing against the upper part of the flange 7. The upper edge of the bowl is pressed against a resilient gasket 6 carried by the canopy. Specification 4487/97. [Class 75], and U.S.A. Specification 1,885,655 are referred to.
Patent GB-242778-A (GB)
Title: Improvements in devices for drying or curing, hay, corn, straw and the like products
IPC: F26B9/10
Filed: 1924-11-01
Abstract: 242,778. Tinker, C. Nov. 1, 1924. Crops, storing and preserving.-The hay &c. is stacked around a pervious flue 1 and enclosed by an air-tight casing 9, and heated or atmos. pheric air, or gas is forced into the flue by a fan connected to the duct 4, while moisture-laden vapour is withdrawn through the outlet 10 in the casing by a suction fan. The flue is provided with dampers for controlling the flow of air. The hay &c. may be treated in a barn, in which case the flue and the air-tight casing are both enclosed in the barn which may be provided with a false perforated floor.
Patent GB-1351639-A (GB)
Title: Drivers cabin for tractors and like vehicles
IPC: B62D33/06
Filed: 1971-04-19
Abstract: 1351639 Tractor cabs P E KETTLER 19 April 1971 [2 April 1970] 26029/71 Headings B7B and B7D A tractor cabin having separate lower and upper parts 2, 18 has damping means (not shown) such as rubber or plastics material interposed between the lower part 2 and the chassis 10. In a preferred embodiment, Fig. 2, the lower cabin part 2 has an upper flange which is interposed, together with the mudguard 15, bearing plate 21 and a further elastic intermediate plate (not shown) between the bearing foot 19 of the upper cabin part 18 and the chassis 10 and held by screws 20. In another embodiment, Fig. 3, damping elements 9 are interposed between the lower part 2, a carrier frame 7 rigidly connected with the upper cabin part 18, and the chassis 10. In an alternative arrangement, Fig. 4 (not shown) the carrier frame 7 is attached to a bearing plate separate from the upper cabin part 18. The lower part 2 may be a sheet metal box and may be provided with sound-proof material.
Patent GB-672225-A (GB)
Title: Improved process for the preparation of carbides of metals of the groups iv, v and vi of the periodic table
IPC: C01B31/30
Filed: 1949-10-11
Abstract: Simple or complex carbides of metals of Groups IV, V, and VI of the periodic table are prepared by mixing one or more metallic hydrides with carbon and compressing the mixture into briquettes which are gradually heated to the reaction temperature.  The metallic hydride or hydrides, e.g. hydrides of titanium, zirconium, hafnium, thorium, niobium, and tantalum or mixtures thereof, with or without powdered pure metal, e.g. tungsten, in the case of complex carbides, are malaxated, say for 2 hours, to a thick paste with carbon, e.g. calcined petroleum black, and a carbon-dispersive liquid, e.g. petroleum spirit, petroleum oils, benzine hydrocarbons, or certain alcohols.  The paste is heated to say 100 DEG C. in vacuum, or non-oxidizing atmosphere, to drive off excess liquid, pulverized and compressed to briquettes.  The briquettes are introduced into a cold furnace and heated slowly to say 2100 DEG C. which temperature is maintained for some 50 mins. The product may be malaxated, heated, compressed and fired for a second time.  Specification 672,209 is referred to.
Patent GB-362961-A (GB)
Title: Improvements in or relating to the recovery of minerals or metal values by froth flotation
IPC: B03D1/06
Filed: 1930-09-03
Abstract: In the froth flotation concentration of oxidized copper ores or mixed oxidized and sulphide copper ores a cyanide of an alkali or alkaline-earth metal, ammonium cyanide, or hydrocyanic acid is added, either by grinding with the ore or by adding to the pulp in p  the flotation cell.  The flotation may be carried out in stages, the quantity of cyanide added in the first stage being relatively small, and in the case of mixed sulphide and oxidized ores a preliminary flotation without cyanide may be carried out to remove the sulphides. After floating the oxidized copper a final flotation without the addition of cyanide may be performed to recover the residual copper. The Provisional Specification refers to the use of simple or complex metal cyanides in general, organic derivatives of hydrocyanic acid containing the cyanide radical and mixed cyanides containing both organic and metallic radicals.
Patent GB-673052-A (GB)
Title: Improvements in electrical measuring instruments
Filed: 1950-10-31
Abstract: 673,052. Transformer turns ratio testing equipment. EVERSHED & VIGNOLES, Ltd. (Biddle Co., J. G.). Oct. 31, 1950, No. 26570/50. Class 37. [Also in Groups XXXV and XXXVII] A portable instrument which gives a direct reading of the turns ratio of a transformer comprises a hand-driven alternator and a switching device with contacts connected to tappings on a comparison transformer. The apparatus operates according to the known principle of adjusting the output voltage of the comparison transformer to equilibrium with the output voltage of the transformer under test. In Fig. 1 a fourpole hand-driven alternator 1 drives a commutator rectifier 20 and energizes according to current seen on ammeter 11 and voltage seen on voltmeter 12, the low voltage winding 9 of the transformer 10 under test and the two parallel connected halves 8, 8a of the comparison transformer 7. The latter's secondary winding 18 in series opposition with the high voltage winding 13 of the transformer 10 under test is divided into groups 18a, 18b, 18c co-operating respectively with rotary switches 50, 51, 52. Each group is divided into sections, each of which comprises a definite number of turns related in different groups on a decade basis to each other and to the totality of primary turns 8, 8a, as fully described in the Specification. The commutator 20 in series with the windings 13, 18 feeds D.C. to a galvanometer 42 and the turns ratio balancing procedure consists in varying the effective secondary turns 18 by manipulation of switches 50, 51, 52 to cut in or out secondary turns as required until a zero reading is obtained on the galvanometer 42. The turns ratio of the transformer 10 is then read off the settings of switches 50, 51, 52. A voltage divider 19 fed from an auxiliary winding 30 on the comparison transformer 7 furnishes an adding or subtracting voltage in the measuring or balancing circuit so as to produce a fine zeroizing adjustment of the galvanometer 42. A plus or minus correction is made to the switch readings depending on which side of fixed tapping 31 is the final adjusted position of slider 32. Before the instrument is put into service a phase-shifting network (not shown) is used in co-operation with adjustable coupling 34 to ensure that the commutator reversals coincide with current reversals in the balance circuit. With the aid of Fig. 4 (not shown) the construction of the comparison transformer is described (see Group XXXV) and switch constructional details, Fig. 3 (not shown), are given (see Group XXXVII). Fig. 2 (not shown) illustrates the portable nature of the equipment.
Patent GB-434051-A (GB)
Title: Improvements in and relating to muliple spindle boring and drilling machines
IPC: B23Q1/03
Filed: 1934-09-17
Abstract: 434,051. Drilling-machines. VOMAGBETRIEBS AKT.-GES., Plauen, Vogtland, Germany. Sept. 17, 1934, No. 26657. Convention date, April 21. [Class 83 (iii)] In a multiple-spindle drilling-machine wherein the spindles are axially stationary and the work table is fed thereto, the spindles 101 are mounted in bearings in blocks 102 secured as a unit to the machine frame 109. The blocks 102 are spaced laterally within the unit by distance pieces 103 and are clamped between end brackets 104 by screwed rods 105. Beams 106 are attached to the brackets 104 by screws 107 and carry screws 108 which engage the individual blocks. The brackets 104 are secured to the machine frame by screws 110 engaging T-slots 114 and the unit as a whole is laterally adjustable by a screw 111, Fig. 1, engaging a bracket 112. The spindles are driven by staggered pulleys 113 driven by two belts from a single driving pulley, and at their lower ends are screwed at 115 for the attachment of boring heads 117. A number of units may be mounted on the same machine and the lateral adjustment may be effected by rack and pinion &c. instead of by the screw 111. The blocks 102 are guided laterally by ledges 102<a> on the machine frame engaging grooves in the blocks.