baber/WOPTO huggingface dataset:
Patent GB-206861-A (GB)
Title: Improvements in and relating to counting apparatus
IPC: G06M1/04
Filed: 1923-11-13
Abstract: 206,861. Dement, I. S. Nov. 13, 1922, [Convention date]. Counters actuated by revolving mechanism. - In a counter for use with meters &c. the numeral drums are actuated by a pawl-carrying frame 15 rocked from side to side of the vertical plane through its pivots 16, being moved in one direction by a spring 22 and in the other by a pin 27 mounted on a rotating wheel 23 driven by a worm 24 from the meter shaft. The pin 27 engages at each revolution a cam surface 20 extending from a bar 21 forming part of the frame 15 which pivotally carries the differential actuating pawls 13. At each revolution of the worm wheel the pin 27, by engagement with the cam 20, forces the frame 15 rearwardly to cause the pawl (or pawls) 13 to enter the next recess of the numeral drum whereupon, after the pin has passed, the spring 22 is able to return the frame and actuate the counter. The cam 20 is so shaped as to cause the pawl to engage the next recess at some distance from its front wall and then to allow it, under the action of the spring, to move gently into engagement with the wall before the actuating stroke commences. The frame may be moved positively in both directions if the spring becomes inoperative by the provision of an arm 30 extending from the cam 20 and having a surface 31 to co-operate with the pin 27. Overthrow is prevented by projections 28 at the lower end of the bar 21.
Patent GB-381723-A (GB)
Title: Process for absorbing olefines in strong acids
IPC: C07C29/06
Filed: 1931-10-15
Abstract: Olefines and (or) their polymerization products are absorbed in strong acids, such as sulphuric, phosphoric, or a sulphonic acid, admixed or not with a strong organic acid, under such conditions of acidity as are known to cause the formation of hydrolysable compounds, in the presence of non-hydrolysable double compounds of metal-cyanogen complexes, such as ferrocyanic or ferricyanic acid, with hydrocarbons containing one or more double bonds in the molecule, such as propylene, n-butylene, isobutylene, trimethylethylene, diamylene, isoprene, cyclohexene, or pinene.  The said non-hydrolysable compounds are prepared by absorbing hydrocarbons containing one or more double bonds in strong acids containing metal-cyanogen complexes, under more strongly acid conditions than those which cause the formation of hydrolysable compounds.  The olefines to be absorbed may be pure or diluted, and may contain more than one double bond.  As described in the parent Specification, froth-forming or emulsifying agents may be added, and the process may be effected at atmospheric, reduced or raised pressure.  According to the examples, (1) propylene is absorbed in a reagent prepared by mixing 90 per cent sulphuric acid with potassium ferrocyanide and adding trimethylethylene or (2) isobutylene; (3) the reagent of example (2) is diluted and then used for absorbing isobutylene or (4) trimethylethylene; (5) isobutylene is absorbed in a reagent prepared by introducing propylene into a sulphuric-acid solution of potassium ferrocyanide, warming, and diluting; (6) propylene is absorbed in a reagent prepared by adding n-butylene to a sulphuric-acid solution of potassium ferrocyanide; (7) n-butylene is absorbed in a reagent prepared by adding isobutylene to a sulphuric-acid solution of potassium ferrocyanide and diluting; (8) propylene is absorbed in a reagent prepared by adding potassium ferrocyanide and cyclohexene to sulphuric acid; (9) propylene is absorbed in a reagent prepared by adding isoprene to a sulphuric-acid solution of potassium ferrocyanide; (10) propylene is absorbed in a reagent prepared by adding isobutylene to a sulphuric-acid solution of potassium ferricyanide; (11) isobutylene is passed through 90 per cent sulphuric acid in which potassium ferrocyanide is suspended, and the mixture is then neutralized and extracted with ethyl acetate; the extract is distilled to recover the double compound of isobutylene and potassium ferrocyanide, and isobutylene is then absorbed in a p solution of the double compound in 70 per cent phosphoric acid; the reaction product is neutralized and distilled, to recover tertiary butyl alcohol; (12) isobutylene is absorbed in a benzenesulphonic-acid solution of the double compound used in example 11, and the reaction product is worked up as in example 11 to give tertiary butyl alcohol.
Patent GB-1066746-A (GB)
Title: 3,16,20-substituted-pregnanes
IPC: C07J7/00
Filed: 1964-07-10
Abstract: Novel sterois of the formula <FORM:1066746/C2/1> wherein R1 is hydrogen, R11CO or benzyl and the A/B-rings have one of the structures <FORM:1066746/C2/2> R being hydroxy, oxo or R11COO and R11 being C1- 4 alkyl, are prepared by treating a steroid of the formula <FORM:1066746/C2/3> wherein R111 is C2- 5 alkanoyl or benzyl and the A/B-rings have one of the structures <FORM:1066746/C2/4> (R1111 being C1- 4 alkyl or C2- 5 alkanoyl) or the second structure depicted above, i.e. the D 3,5-3-enol ether, with a methyl Grignard reagent, isolating the product, and, when the 3 and/or 16-hydroxy steroids are desired, hydrolysing or hydrogenolysing the product, and when the 3-oxo-steroids are desired, oxidizing the 3-hydroxy group, except when the 3-oxo-D 4-steroid is desired, when the D 3,5-3-enol ether or enol ester is hydrolysed.  Examples illustrate these processes and the hydrogenation of 20-methyl - 5 - pregnene - 3b ,16a ,20 - triol to 20 - methyl - 5a  - pregnane - 3b ,16a ,20-triol.  Acylation of the products is also referred to.  16a  - Acetoxy - 3 - ethoxy - 3,5 - pregnadien - 20-one is prepared from 16a -acetoxy-progesterone and triethyl orthoformate.
Patent GB-491280-A (GB)
Title: Machine for straightening metal plates
IPC: B21D1/02
Filed: 1937-10-21
Abstract: 491,280. Straightening. UNGERER, F. Oct. 21, 1937, No. 28698. [Class 83 (iv)] In a straightening machine with one or several short rolls movable longitudinally and transversely, the short straightening rolls are of crowned shape. A crowned roll d substituted for one of the normal staggered rolls is rotated by a shaft d<1>, longitudinally adjusted by a screw f, and transversely adjusted by a cam i rotated by a quadrant t. The transverse adjustment may be effected by wedge or fluid pressure. Two rolls may be adjusted by independent means.
Patent GB-1002459-A (GB)
Title: Manufacture of pyridine bases
Inventor: CAMPBELL IAN
IPC: C07D309/30
Filed: 1963-07-19
Abstract: Piperidine or a substituted pyridine is prepared by interacting an ether of 2-hydroxy-3,4-dihydro-2H-pyran, or a substitution product thereof, with ammonia in the vapour phase at elevated temperature in the presence of a catalyst comprising a noble metal, defined as one of Au, Ag, Ru, Rh, Pd, Os, Ir and Pt. Suitable support materials for the noble metal are silica, alumina or a mixture or combination thereof. The etherifying group may be alkyl, alkoxyalkyl or a radical derived from a polyalkylene glycol ether.  2 - Ethoxy - 4 - methyl - 3,4 - dihydro - 2H - pyram is prepared from crotonaldehyde and ethyl vinyl ether.
Patent GB-805167-A (GB)
Title: Polyurethane foamed products and preparation thereof
IPC: C08J9/00
Filed: 1956-09-20
Abstract: Flexible, low-density, shock-absorbing polyurethane foams are prepared by incorporating a vinyl chloride polymer with an average particle size of 0.1-5 microns into the reaction mixture of polyester, polyisocyanate and water.  The polyvinyl chloride is of the plastisol type, e.g. known under the Registered Trade Mark "Geon" 121, and may be a co-polymer with minor amounts of other monomers.  A plasticizer is preferably employed with the vinyl chloride polymer. Many known plasticizers are listed as suitable. Preferred polyesters used are prepared from mixed polyols and mixed dicarboxylic acids. Blends of polymers with varying molecular weights are favourable. The acid number should be less than 5 and it should be liquid at temperatures below 100 DEG  C. Aromatic diisocyanates are preferred. Density is controlled by the amount of water added.  Small amounts of alkaline materials, e.g. soaps or tertiary organic bases are useful additives and a small amount of finely-divided mica prevents foam structure collapse (Specification 801,070).  Foaming preferably takes place at room temperature and heating the foamed products make them toughter and stronger.  In examples: I a polyester from 1 mol. succinic acid, 1 mol. adipic acid, 1 mol. azelaic acid, 1.33 mols. ethylene glycol, 1.33 mols. 1,4-butanediol, 1.33 mols. 1,5-pentanediol and 0.42 mol. pentaerythritol is reacted with m-tolylene diisocyanate, and water in presence of potassium ricinoleate, calcium stearate, aluminium stearate, an acetone solution of polyvinyl acetate, and varying proportions of polyvinyl chloride (average particle size 0.8 microns) and tricresyl phosphate. The physical properties of the foams produced are listed.  (II) A polyester from 1 mol. adipic acid, 1 mol. azelaic acid, 2 mols. ethylene glycol, 1 mol. diethylene glycol and 0.125 mol. pentaerythritol is used in admixture with another polyester from 0.75 mol. adipic acid, 0.75 mol. phthalic acid, 3 mols. ethylene glycol and 0.25 mol. pentaerythritol, for production of a polyurethane foam containing finelydivided plasticized polyvinyl chloride.  Mica is also present in this example.  Examples (III) and (IV) are similar producing foams lacking in resilience with good shock-absorbing characteristics. They are useful as crash pads for automobiles and aircraft, as motor mounts, for packing delicate instruments and as gym. mats.
Patent GB-225850-A (GB)
Title: Improvements in mouthpieces for cans tins or other vessels
IPC: B65D47/12
Filed: 1924-12-02
Abstract: 225,850. Oller TintorÚ, J. M. Dec. 3, 1923, [Convention date]. Spouts.-The body part 5 of a spout 7 is threaded to engage over a threaded mouth-piece 2 soldered over an opening in a can or tin, the correct orientation of the mouth-piece being determined before soldering by screwing up the part 5 as high as possible until its upper edge 6 bears against the edge 3 of the mouth-piece and then arranging the spout 7 in the position it is desired to occupy during pouring. The spout is turned to lie over the can body. A sealing plug 8 is shown fitted into the base of the mouthpiece, and a screw closing plug 9, Fig. 3, fitted with a washer 10, may be provided therefor.
Patent GB-1234983-A (GB)
Title: Photosensitive circuit
IPC: H03F3/45
Filed: 1968-06-18
Abstract: 1,234,983. Photo-electric intensity measurement. PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd. June 18, 1968 [June 21, 1967], No.28925/68. Heading G1A. [Also in Division H3] The intensity of light is measured by a photosensitive circuit comprising a differential amplifier, the input circuits to which include on the one side a photo-diode 1 in association with a linear potentiometer 7, and on the other side a voltage reference diode 2. When operating as an exposure meter, the voltage provided by the potentiometer 7 is adjusted by movement of its slider so as to balance the differential amplifier, or at least attain a predetermined indication on meter 12. The setting of the potentiometer is then a measure of the logarithm of the light intensity (since the photo-diode 1 and reference diode 2 voltages vary logarithmically with current). The potentiometer can thus be calibrated in light values. Features of the circuitry include the emitter follower coupling of the transistors of the amplifier; a transistor 6 acting as a high differential or alternating current resistance to provide a low direct voltage drop in the common emitter circuit of the amplifier transistors: temperature compensation in the output of the amplifier by resistor 10 and transistor 11; stabilization of the current through potentiometer 7, provided by transistor circuitry 13-20, including control and temperature compensating transistors 17-20 strapped as diodes. This latter circuitry is thereby designed to compensate for the temperature variations of reference diode 2. In the event of over-exposure, a high voltage occurs across diode 2 and indicator 12 and a trigger circuit comprising transistors 21, 22 is actuated to energize an alarm lamp or a relay (to prevent shutter actuation) connected at terminal 29. Similarly, under-exposure control can be provided by suitable adaptation of the circuit. By replacing meter 12 with a capacitor, provision for delayed shutter actuation, the delay being adjusted by the setting of a variable resistor 24, is possible. The circuit may be wholly or partially formed as an integrated semi-conductor circuit.
Patent GB-483674-A (GB)
Title: Improvements in or relating to the spraying of metals
IPC: B05B7/20
Filed: 1936-10-24
Abstract: 483,674. Electric heating. FORTON, H. R. Oct. 24, 1936, No. 28955. [Class 39 (iii)] [Also in Group XXIX] Apparatus for spraying metal comprises a housing having a heating chamber containing a crucible 88 provided with an exit nozzle projecting through an orifice in the bottom of the housing and surrounded by an air nozzle by which the fused metal is atomized. The crucible is heated electrically and provided with automatic switch means for increasing the heating when the sprayer is in operation. The crucible 150 is surrounded by heating coils 88 and a metal strip 137 is fed thereto by worm gear 138 driven by a flexible shaft from an.electric motor 145. In the position shown, on closing a switch 91 current passes through the whole of the coil 88 to heat the crucible. On turning the atomizing air supply cock 90 a piston moves the switch 108 over to close the motor circuit 102, 103 and also to close contacts 104, 105 by which part of the coil 88 is short circuited thus increasing the heating of the crucible to allow for the cooling effect of the air blast.
Patent GB-642096-A (GB)
Title: Improvements in and relating to the production and refining of metals
IPC: C21B13/14
Filed: 1946-09-27
Abstract: A process of producing and refining metals, such as iron, starting from their ores, comprises the steps of producing hydrogen and oxygen by the electrolysis of water, using the hydrogen to pre-reduce the ore, smelting the pre-reduced ore and refining the smelted metal by injecting the said oxygen into it to remove oxidizable impurities. The oxygen may be projected e.g. at a pressure of 50 lbs. per square inch from a jet spaced from the surface of the metal with a velocity such that a sufficient proportion of the oxygen enters the metal to react with and remove oxidizable impurities.  The oxygen may be used in the form of a fluid containing not more than 30 per cent of nitrogen and not less than 70 per cent of oxygen.  Specification 642,084 is referred to.
Patent GB-798544-A (GB)
Title: Improvements in fuel atomising nozzles
Inventor: SIMMONS HAROLD CUTHBERT
IPC: F23D11/24
Filed: 1955-10-11
Abstract: 798,544. Liquid fuel burners. DOWTY FUEL SYSTEMS, Ltd. Oct. 1, 1956 [Oct. 11, 1955], No. 28984/55. Class 75(1) In a spray nozzle of the spill type which comprises a swirl chamber into which liquid enters tangentially at high pressure, a circular discharge orifice and a circular spill orifice each co-axial with and at opposite ends of the swirl chamber, the spill orifice having a diameter not less than that of the discharge orifice, the spill orifice opens rearwardly into a diametrically extending passage having a rear wall the central portion of which constitutes a baffle for the air core of the swirling liquid and the end portions having openings to a common spill line. In the form shown, the nozzle comprises an annular inlet passage 11 surrounding the spill passage 12. Liquid fuel enters the swirl chamber 14 by a pair of tangential inlet orifices 15 and is discharged through the spray orifice 16. The spill orifice 17 is formed in an element 18 spigoted into the element 13 forming the swirl chamber and leads to a diametral passage 20 formed by a plug 19 spigoted into the element 18, and having a rear wall consisting of a central solid portion 21 and two inclined portions 22 having openings 23 leading to the spill line 12. The various parts are held together by a shroud 25 naving an internal flange 24 at the front end and an internal nut 26 at the rear. The shroud 25 has a external flange 27 at the rear by which the burner is clamped to a supporting pipe 28 by a ring 29.
Patent GB-432190-A (GB)
Title: A process for the manufacture of artificial resins
IPC: C08G8/28
Filed: 1933-10-19
Abstract: Hardenable artificial resins are prepared by condensing phenol and formaldehyde in a dilute aqueous solution in the presence of such a concentration of alkali that the resin remains in solution, whereby the entire condensation process is carried out in a single stage to the desired degree of condensation after which the resin is precipitated from solution.  In an example, phenol and formaldehyde are condensed in the presence of caustic soda and water and resin is precipitated out of the cool solution by means of acid.  U.S.A. Specification 1,187,229 is referred to.
Patent GB-426605-A (GB)
Title: Paper feeding device for typewriters, calculating machines or similar office machines
IPC: B41J13/036
Filed: 1934-10-10
Abstract: 426,605. Typewriters &c. WANDERERWERKE VORM. WINKLHOFER & JAENICKE AKT.-GES., Sch÷nau, near Chemnitz, Germany. Oct. 10, 1934, No. 29027. Convention date, Oct. 10, 1933. [Class 100 (iv)] Sheet - feeding arrangements.-In typewriting, calculating, and like machines, a spring-urged pressure roller 4, cooperating with a driven roller such as the platen 3 to feed sheets, is mounted at each end on a ball bearing which consists of races 8, 9 and balls or rollers 7 and is mounted in the pressure - roller support 5. The race 9 may fit tightly on the end of the pressure-roller spindle 1. For long pressure-rollers, an intermediate support, preferably having a ball bearing, may be provided. The arrangement prevents the pressure-roller from slipping when a number of sheets are being fed.
Patent GB-1155975-A (GB)
Title: Crankshaft Lathe.
IPC: B23Q3/157
Filed: 1966-06-28
Abstract: 1,155,975. Crankshaft lathes. R. K. LEBLOND MACHINE TOOL CO. 28 June, 1966 [27 Aug., 1965], No. 29049/66. Headings B3B and B3T. A lathe for machining crankpins on a crankshaft comprises a removable tool carrying assembly 3 in which one or more tool carriers 8 are journalled on a pair of master crank-shafts 10, 11 which rotate in synchronism about parallel axes, a bed 1 which supports the assembly 3 and which is provided with two opposed headstocks 15, 16, one of which is displaceable on slideways to accommodate crank-shafts of different lengths, and fluid operated chucks 17 mounted on the headstocks and which hold and rotate the crank-shaft to be machined in synchronism with the master crank-shafts. The drive for the headstocks and master crankshafts is provided by a motor 19 through belt and gear drives 26 and 25, 28 respectively. Steady rests 18 are mounted on the bed and are adjustable longitudinally thereof by a rack 38 with which pinions 202 and 172 of the steadies and headstock 16 respectively, co-operate to permit any necessary adjustment, the steadies and headstock being locked in position by clamping blocks 204 and 173 respectively. The tool carrier assembly is supported on the bed in a cradle 2 pivotable on a shaft 45 about an axis parallel to the crank-shaft to be machined, the cutting tools 14 in the holers 13 are fed to the crankpins by driven cam members 20 mounted in the bed and which pivot the cradle and tool carrying assembly. Adjustment of the master crank-shaft 10 is provided by a wedge 88 to permit adjustment necessary due to slight variations in the throws of the master cranks and the tool carrying assembly is aligned on the cradle by way of plates 57 co-operating with rod members 58, fluid operating means 60, Figs. 9 and 9A (not shown) being provided to permit slow final seating of the tool carrying assembly on to the cradle prior to securing the assembly to the cradle. The fluid operated chucks 17, Fig. 19, each have a swinging clamping jaw element 182 which pivots about an axis transverse to the axis of rotation of the chuck by means of a lever linkage 188, 191 actuated by a fluid displaceable slide block 195. In order to set the master crank-shafts with respect to the crank-shaft to be machined alignment markings are provided between one of the driving gears and the housing of the assembly. After the securing of the tool carrying assembly and the closing of the steady rests the operation of the lathe may be automatic or alternatively the separate machine functions may be effected manually by push-button operation. A vibrating feed tray located within the bed effects removal of the cuttings produced during the machining operation.
Patent GB-1478817-A (GB)
Title: Substituted hydroxyphenyl-piperidones
IPC: C07D211/76
Filed: 1975-07-10
Abstract: 1478817 Hypolipidemic compositions HOECHST AG 10 July 1975 [11 July 1974] 29054/75 Heading A5B [Also in Division C2] Therapeutic compositions, preferably in a form for oral administration, comprise compounds of formula: (wherein R<SP>1</SP> and R<SP>2</SP> are each halogen, or C 1-9  alkyl or alkoxy, or one of R<SP>1</SP>, R<SP>2</SP> may be H) which have hypolipidemic activity. The compositions may contain additional active ingredients (of which a number are specified), eg. antidiabetics, coronary dilators, bloodpressure lowering agents, geriatrics, psychopharmaceuticals, weight-reducers, vitamins and other hypolipidemics
Patent GB-1272916-A (GB)
Title: Improvements in and relating to electromagnets
Inventor: BOLOTOV IVAN GRIGORIEVICH
IPC: H01F7/16
Filed: 1970-06-16
Abstract: 1,272,916. Electromagnets. I. G. BOLOTOV, V. A. KOSOVTSEV, and L. V. TKACHENKO. 16 June, 1970, No. 29090/70. Heading H1P. An A.C. electromagnet (Figs. 1, 2) comprises an E-shaped laminated yoke 1, an exciting coil 2, a T-shaped armature 3 reciprocating in axial guide 4, and a bail 5 of U-shape (Figs. 4, 5) retaining the armature in its de-energized position; the legs of the bail being longitudinally split at 6 to support longitudinally split armature guide tubular members 7 embracing the edges of the bail. Plural rectangular openings in the legs of the bail receive bent over securing tabs of the tubular members (Figs. 6 to 9, not shown), which are held with limited self-aligning movement. A pin 10 in a bore of the armature head retains antifriction members 11, with semicircular grooves in their ends (Figs. 9, 10, not shown) sliding over the tubular members 7 to support the armature during movement.
Patent GB-1310697-A (GB)
Title: Dip coating process for preparing cellulose ether film products
IPC: A61K9/48
Filed: 1970-06-16
Abstract: 1310697 Cellulose ether articles DOW CHEMICAL CO 16 June 1970 [16 June 1969] 29119/70 Heading B5A Cellulose ether articles, e.g. shells for pharmaceutical capsules, are produced by dipping a mandrel having an electrically conductive outer surface, e.g. of stainless steel, into an aqueous solution of viscosity 1000-12,000 c.p.s. and containing at least 20% by wt. of a filmforming C 2 -C 4  hydroxyalkyl C 1 -C 2  alkyl cellulose ether having a hydroxyalkyl molar substitution of 0À07-1À0, an alkyl degree of substitution of 0À6-2À0 and a viscosity of 2-20 c.p.s. (as a 2% wt. solution at 20‹ C.), removing the coated mandrel, gelling the coating by induction heating and then drying the coating. The cellulose ether is preferably a hydroxypropyl methyl cellulose ether.