baber/WOPTO huggingface dataset:
Patent GB-907430-A (GB)
Title: A method for the preparation of chemically stable liquid suspensions of erythromycinand the suspensions so prepared
Filed: 1961-02-02
Abstract: Chemically stable liquid suspensions suitable for oral administration comprise erythromycin A and/or B salts and esters suspended in a vegetable oil-in-glycerine emulsion.  Preferred active compounds are erythromycin ethyl succinate, diacetate, lactobionate, stearate and propionate.  Therapeutically active sulphonamides, e.g. sulphadiazine, sulphamerazine and sulphamethazine, antioxidants, buffers and sweetening, flavouring and emulsifying agents may also be present.  The preferred vegetable oils are corn, safflower, cottonseed and peanut oils. Specification 830,846 is referred to.
Patent GB-763980-A (GB)
Title: Derivatives of aminosulphonic acid
Filed: 1954-02-11
Abstract: The invention comprises amino-sulphonic aryl esters having the general formula <FORM:0763980/IV(b)/1> in which R1 is an alkyl radical having from 1-4 carbon atoms and R2 is an aromatic radical which may be unsubstituted or substituted by alkyl or halogen groups and the process of preparing such compounds which comprises reacting a N-substituted aminosulphonic acid halide of the formula (R1)2N-SO2-X with a salt of a phenol or naphthol, the latter being of the formula R2OH, where R1 and R2 are as defined above and X is a halogen atom, e.g. chlorine.  Suitable phenolic starting materials mentioned are alkyl- and halogen phenols and a - and b -naphthols which may be in the forms of alkali metal, alkaline earth metal or tertiary amine salts.  Solvents mentioned include inert organic liquids such as ether, chlorobenzene, toluene and dioxane. Alcohols and aqueous reaction media may be employed.  Examples relate to the reaction of dimethylaminosulphochloride in xylene with the sodium salts of appropriate phenols to obtain esters of phenol, 4-chlorophenol, 2,4,6-trichlorophenol, 2,4-dichlorophenol, o- and p-cresol and chlorosubstituted derivative thereof and a -naphthol and to the preparation of the 4-chlorophenyl ester of diethylaminosulphonic acid.  The products are insecticides.
Patent GB-1048312-A (GB)
Title: A process for making polyether polyurethane foams
IPC: C08G18/48
Filed: 1965-01-29
Abstract: Polyurethane foam is prepared by mixing an organic polyisocyanate with a substantially chemical equivalent amount of a polyether polyol and water, the polyether polyol having an OH equivalent weight of 1000 to 2000 and consisting of the condensation product of 1,2-propylene oxide and ethylene oxide with a polyhydroxy compound containing from 2 to 18 carbon atoms and from 2 to 8 hydroxyl groups in the molecule, and containing 8 to 30 weight per cent of ethylene oxide and in which not more than 30% of the hydroxyl groups are primary ones.  The preferred amount of water is from 2.5 to 5.0 weight per cent of the polyether polyol.  Many polyhydroxy compounds are mentioned; preferred ones are aromatic polyhydroxy compounds having 2 to 4 hydroxyl groups in the molecule and aliphatic polyhydroxy compounds such as glycerine, dipropylene glycol and sucrose.  The organic polyisocyanate is employed in amount corresponding to 1-1.05 NCO groups per OH group in the polyether polyol and the water initially used.  Many polyisocyanates are mentioned; the preferred one is tolylene diisocyanate. Many blowing agents are mentioned; the preferred ones are chlorofluorinated alkanes.  A silicone oil is used as a foam stabilizer and cell regulator, the preferred species being an alkyl silane polyoxyalkylene block copolymer. Amine and organometallic catalysts are employed, e.g. triethylenediamine and stannous octoate.
Patent GB-348115-A (GB)
Title: Improvements in chimney pots
IPC: F23L17/02
Filed: 1930-02-06
Abstract: 348,115. Chimney tops. JOBBINS, J., 44, Copse Road, Cleveland, Somersetshire. Feb. 6, 1930, No. 4096. [Class 25.] In a chimney-top of the type in which the upper part of the pot is protected by a cowl c spaced from the sides of the pot and in which the pot is provided with a flange w extending under the lower edge of the cowl to form a radially extending air passage t, the flange is inclined outwardly and downwardly and the annular space n between the pot and the cowl is gradually restricted downwards. The cowl is preferably supported by brackets b integral with the cowl and the pot. From the top downwards the diameter of the pot gradually increases to a maximum at a position just above the lower edge of the flange. A sloping collar p<11> on the top of the pot serves to deflect downward air currents into the passage n. The lower face of the flange is undercut to form a dripping edge t<11> to prevent water running down the face of lower part of the pot.
Patent GB-931736-A (GB)
Title: Brassiere
IPC: A41C3/00
Filed: 1961-02-03
Abstract: 931,736. Brassieres. INTERNATIONAL LATEX CORPORATION. Feb. 3, 1961 [Feb. 11, 1960], No. 4121/61. Class 141. A brassiere is provided with a strip 30 of elastic fabric which has bare rubber threads on its exposed surface and is attached to the lower part of each back band 16. Each shoulder strap 24 is of inelastic material with a short length 26 of elastic material at the end connected to the back band. The upper edge 33 of the strips 30 may be attached to the band 16 or left free. Reference has been directed by the Comptroller to Specification 845,173.
Patent GB-1293746-A (GB)
Title: Paper sheet feed device
IPC: G03G15/00
Filed: 1970-01-28
Abstract: 1293746 Feeding sheets CANON KK 28 Jan 1970 [28 Jan 1969 19 Feb 1969] 4135/70 Heading B8R A paper sheet feed device comprises stack supporting means, e.g. a stand 1, sheet feed means which can be moved from a sheet feed position to a second position e.g. a plurality of rollers 5, 5 2 , 15 1 , 15 2  driven on a common shaft 7 which can be moved away from the stack on swingable arms 6, the feed means being maintained in said second position without any support from a stack on the supporting means so that the stack can be loaded or removed from the supporting means, means also being provided for returning the feed means automatically from said second position to said sheet feed position when the feed means is actuated in said second position, e.g. by its drive chain 16 engaging a detent member 18 thereby urging the arms 6 back into the feed position. Stacks of various sizes may be laid over a rod 14 and be located between side guides 2 1 , 2 2  and front stops 4 1 , 4 2 , the feed rollers causing successive uppermost sheets to buckle against the front stops until they flip over the stops to be fed over a guide plate 12 to rollers 13 1 , 13 2 . The chain may be replaced by a belt (19), Fig. 5 (not shown), having projections (20).
Patent GB-343305-A (GB)
Title: Improvements in or relating to castors
IPC: B60B33/00
Filed: 1930-02-07
Abstract: 343,305. Castors. WILLIAMS BROS.- & PIGGOTT, Ltd. and PIGGOTT, J. C., Herbert Road, Small Heath, Birmingham. Feb. 7, 1930, No. 4142. [Class 52 (i).] A castor horn-piece is provided with spaced arms 4, 5, outstanding from the horn piece or a member secured thereto, and having antifriction races for the castor spindle 16 formed therein. The arms and horn-piece are preferably formed integrally from a stamping of the shape shown in Fig. 4. A distance-piece 23 may be inserted between the arms and the castor wheel may also have antifriction bearings.
Patent GB-553121-A (GB)
Title: Piezoelectric crystal apparatus
IPC: H03H9/19
Filed: 1942-03-28
Abstract: 553,121. Piezo-electric crystals. STANDARD TELEPHONES & CABLES, Ltd. March 28, 1942, No. 4172. Convention date, Oct. 19, 1940. [Class 40 (v)] A rectangular quartz piezo-electric crystal 1 arranged for vibration in an odd harmonic longitudinal node has its major plane parallel to an X axis of the natural crystal and the major dimension L is inclined at 45 degrees to the X axis and at an angle between 45 degrees and 52 degrees to the Z axis.The ratio of width W to length L and of length to thickness T are chosen according to a given formula so as to exclude even harmonic and other undesired nodes of vibration. The crystal is provided with an odd number of pairs of electrodes 4, and is clamped or attached to leads at the nodal point 6. The relative dimensions may be chosen to give a low temperature co-efficient of frequency which may also be attained by the series connection of a temperature sensitive condenser Fig. 4 (not shown). Specifications 479,979 ; 533,731 and 540,184 are referred to.
Patent GB-382829-A (GB)
Title: Improvements in or relating to seats
IPC: B60N2/20
Filed: 1932-02-12
Abstract: 382,829. Seats. BISHOP, W. H. and SMITH, H. A. G., 48, Moor Street, Birming- ham. Feb. 12, 1932, No. 4180. [Class 52 (ii).] A seat particularly for use in automobiles and other vehicles has the frame a carrying the back squab pivotally mounted about an axis c lying in front of the rear edge of the seat cushion g and resiliently supported so that it can move in a substantially vertical direction in synchronism with the movement of the upper surface of the rear part of the cushion g under the weight of an occupant of the seat. The frame a, Fig. 1, may have a transverse bar f which rests on the rear of the seat cushion and may be secured to the frame by brackets which are slotted to permit vertical adjustment to suit cushions of different depths. The supporting springs may be enclosed in a separate casing outside the cushion. In a modification, the bar is omitted and the lower edge of the frame rests on the rear of the cushion which may have inside the cover a rigid metal channel strip arranged above the supporting springs. In a further form, Fig. 4, the back frame a is supported by leaf, coil, or other springs k which engage under the arms b. The upholstery of the back and the seat cushion may be made continuous.
Patent GB-1115592-A (GB)
Title: Process for liberating acrylamide from acrylamide sulphate
IPC: C07C233/09
Filed: 1966-01-31
Abstract: Ammonium sulphate is obtained as a by-product in the preparation of acrylamide from acrylamide sulphate wherein acrylamide sulphate is neutralized with ammonia to a pH of 5.0-8.0 in a neutralization medium consisting of a filtrate (b) from a previous cycle to which an amount of water has been added to compensate for water lost during the previous cycle, cooling the neutralized sulphate mixture to separate (a) mixed crystals of acrylamide and ammonium sulphate and filtering to obtain a filtrate (b), which is recycled for use as the neutralization medium, and extracting acrylamide from the mixed crystals (a) with methanol. The methanol extraction is preferably effected at 20-50 DEG  C.  The ammonium sulphate crystals may be washed with methanol in an additional step, and dried.  In a refinement of the process further ammonium sulphate is recovered from the filtrate (b) and the methanol extract.  In the example ammonium sulphate of 98% purity is recovered and may be used as a fertilizer.ALSO:Acrylamide is obtained from acrylamide sulphate by neutralizing the sulphate in a neutralizing medium by adding ammonia until the pH of the medium is 5.0-8.0, the neutralization medium being a filtrate (b), obtained in a previous cycle, and an amount of water added to said filtrate to compensate for water lost during the previous cycle, cooling the neutralized sulphate mixture to separate (a) crystals of acrylamide and ammonium sulphate and filtering to obtain (b) a filtrate which is used as the neutralization medium, extracting acrylamide from the mixed crystals with methanol, concentrating the resultant methanol solution to crystallize acrylamide, filtering and drying the separated acrylamide.  To prevent the accumulation of impurities in the system, a part of the filtrate (b) may be removed from the cycle, concentrated and filtered to obtain mixed crystals of acrylamide and ammonium sulphate which are added to crystals (a). Further, a portion of the methanolic filtrate obtained after filtering off the acrylamide crystals may be recycled to the methanol extraction stage and another portion added to that part of the filtrate (b) removed from the cycle for concentration. Gaseous or liquid ammonia may be used in the neutralization step which is preferably effected at 20-50 DEG  C. in the presence of a conventional polymerization inhibitor.  The process is illustrated by reference to flow sheet drawings (not shown).
Patent GB-907070-A (GB)
Title: Tertiary alcohols and process for their manufacture
IPC: C07D/
Filed: 1961-02-03
Abstract: The invention comprises t-alcohols of the formula:  <FORM:0907070/IV (b)/1> in which R stands for a polyalkylmethyl radical which contains at least 3 carbon atoms and Ph represents a phenyl radical, which contains an alkoxy group containing from 1 to 4 carbon atoms in the 3-position and/or the 4-position and salts and N-oxides thereof, by reacting a ketone of the formula:  <FORM:0907070/IV (b)/2> with an organo-metallic reagent of the formula:  <FORM:0907070/IV (b)/3> wherein one of the radicals X, Y and Z stands for the radical Ph. another for R, and the third for the radical  <PICT:0907070/IV (b)/1> the radicals Ph and R having the previously given meanings and M\sL represents the positively charged ion of a metal of the Ia Group of the Periodic table or the positively charged ion of the formula Met-Hal\sL, in which Met represents a bivalent metal of the II Group of the Periodic table and Hal stands for halogen, and if desired, converting a resulting salt into the free base and/or converting a free base into a salt thereof and/or separating the resulting mixture of isomers into individual isomers.  The preparation of 1-(4-methoxyphenyl)-2-methyl-1-(3-pyridyl) propanol is described. Pharmaceutical compositions having an adrenal inhibiting effect and incorporating the above compounds are administered enterally or parenterally as capsules, tablets, dragees, solutions, suspensions and emulsions.  4-Methoxy-phenyl 3-pyridyl ketone is obtained by treating nicotinic acid with thionyl chloride followed by condensation of the product with anisole.
Patent GB-554878-A (GB)
Title: Manufacture of phenols
IPC: C07C37/04
Filed: 1942-03-31
Abstract: 554,878. Phenols. TYRER, D. March 31, 1942, No. 4279. [Class 2 (iii)] Phenols or salts thereof are made by mixing a salt of the sulphonic acid corresponding to the phenol desired with an inorganic base other than a caustic alkali, and heating, preferably with the introduction of steam. The phenols obtained include hydroxy derivatives of benzene, naphthalene and pyridine. Sulphonates of potassium, sodium, lithium, calcium, strontium, barium, magnesium, lead or zinc or mixed sulphonates, may be used. The addition of potassium chloride or sulphate, sodium chloride, borax, sodium hydroxide (in small amount), zinc chloride, or a mixture of barium carbonate and sodium chloride accelerates the reaction. The base used may be calcium, barium, magnesium, lead, zinc, or cadmium hydroxide or potassium, sodium, barium or calcium carbonate, trisodium phosphate, borax, sodium silicate or tricalcium silicate. The reactants may be briquetted and the reaction may be carried out under increased pressure. Examples give the preparation of phenol, resorcinol, α- and #-naphthol, and #-hydroxypyridine.
Patent GB-1464072-A (GB)
Title: Purification of hydroquinone
IPC: C07C39/08
Filed: 1975-01-31
Abstract: 1464072 Hydroquinone GOODYEAR TIRE & RUBBER CO 31 Jan 1975 [25 Feb 1974] 4298/75 Heading C2C Photographic grade hydroquinone is obtained by treating a solution of technical grade hydroquinone in the presence of a palladium catalyst with hydrogen while the hydroquinone solution is at a pH between 3 and 6.
Patent GB-1107738-A (GB)
Title: Substituted benzoic acid lactones having estrogenic activity
IPC: A23K1/16
Filed: 1966-02-01
Abstract: Novel compounds of the formula <FORM:1107738/C2/1> wherein R is a hydrogen atom or an alkyl, aryl, bromoaryl, carboxylic acyl or aralkyl group, the R groups being the same or different, are obtained by hydrogenating an olefinic compound of the formula <FORM:1107738/C2/2> under conditions such that both the olefinic and ketonic groups are reduced, one or both of the hydroxyl groups on the benzene ring optionally being etherified or acylated before or after the hydrogenation.  The compounds may be separated into two diastereoisomers.  Therapeutic compositions having estrogenic and growth-promoting properties and useful for promoting the growth of meat-producing animals, contain the above compounds as active ingredient.  The composition may be in a form suitable for oral or parenteral application, e.g. as a constituent of an animal foodstuff (see Division A5).  Reference has been directed by the Comptroller to Specification 951,349.
Patent GB-215826-A (GB)
Title: Improvements in automatic trip mechanism for electric circuit breakers
IPC: H01H83/08
Filed: 1923-02-14
Abstract: 215,826. Railing, A. H., Turner, H. C., and Angold, A. E. Feb. 14, 1923. Automatic circuitbreakers.-The trip mechanism for a reverse current circuit-breaker comprises a shunt coil a having a pivoted core b which carries at its ends and at right angles to itself arms c, d, and two iron bars e<1>, e<2> which with the core b and the arms c, d complete the magnetic circuit of the coil. The arm d stands nearly midway between the bars e', e<2> and may rest against a stop f, Fig. 3. When the current in a series coil or wire g, which may be placed above and parallel to the arm d, reverses, the arm d is deflected past the centre point between the bars e<1>, e<2> and is then strongly attracted to the bar e<1> thereby tripping the circuit-breaker. As the power to trip the circuitbreaker is derived almost entirely from the shunt coil, the series coil need only be a weak one and need have no iron attached to it. Any iron parts j<1>, required for an overload trip gear, are placed as far from the arm d as possible. The initial setting of the arm d may also be obtained by means of an adjustable iron disc l, Fig. 5. Other modifications, including one in which there are two armatures and two shunt coils, aredescribed.
Patent GB-625940-A (GB)
Title: Improvements in or relating to para-dichlorobenzene
IPC: C07C17/12
Filed: 1947-02-14
Abstract: Para-dichlorbenzene is produced by passing chlorine into a mixture containing 40-50 per cent of benzene and 60-50 per cent of monochlorbenzene, at a temperature between 30-40 DEG  C. so that the benzene is converted to monochlorbenzene and the monochlorbenzene to dichlorbenzene.  A Friedel Crafts catalyst e.g. ferric chloride is used.  The mixture of chlorbenzenes is first neutralized with sodium hydroxide and the monochlorbenzene is then distilled off.  The dichlorbenzenes are then fractionated so that the meta and para isomers are distilled leaving the ortho. The para isomer is then crystallized out from the meta by cooling. The hydrochloric acid produced in the original chlorination is reacted with benzene vapour and air in the presence of a catalyst composed of copper and iron chlorides to give monochlorbenzene. The monochlorbenzene so produced together with that obtained from the first distillation is returned to the chlorination step to be converted to dichlorbenzene.  The invention is illustrated by means of a diagrammatic flow sheet.
Patent GB-1202222-A (GB)
Title: Connectors for use with printed circuits
Inventor: MATTHEWS BENJAMIN WILLIAM
IPC: H01R12/59
Filed: 1967-01-30
Abstract: 1,202,222. Two-part couplings. JOSEPH LUCAS (INDUSTRIES) Ltd. 24 Jan., 1968 [30 Jan., 1967], No. 4385/67. Heading H2E. An electrical connector 11, for connecting a printed circuit board, or, as shown, a tape cable 19 folded over a plate 21, with a lead (not shown), comprises a conductive member 12 having at one end a pair of tags 13 for gripping the lead and at the other end a flat base 14 having sidewalls 15 rolled inwardly with their longitudinal edges spaced from the base 14, and a U-shaped conductive member 16, having a limb 17, engaging the longitudinal edges, extends parallel to the base 14 while the other limb 18 engages the arcuate outer portions of the deformed sidewalls. In use, exposed conductors of the tape cable 19 are engaged between the limb 17 and the base 14. The plate 21 may be an integral part of a facia panel of a road vehicle. The free end of the limb 18 is bent to prevent inadvertant removal. Limb 17 also serves to dissipate heat from the assembly.
Patent GB-274748-A (GB)
Title: Improvements relating to the controlling devices of machines for inspecting fabric
IPC: D06H3/04
Filed: 1927-02-16
Abstract: 274,748. Sonntag, 0. Feb. 16, 1927. Inspecting.-In machines for inspecting fabric 2 a control shaft 3 having hand levers 4 is situated in front of the inspection board 1, the fabric being stationary when' the levers are in a central position, which, moving the levers forwardly or backwardly, causes one or other of the pulleys 23, 24 to be coupled to a driving-shaft 20 and thereby, through open and crossed belts 30, 29, to drive a drag roller 31 to feed the fabrics in the required direction.
Patent GB-237823-A (GB)
Title: Improvements in and relating to garment stretching devices
IPC: A47G25/72
Filed: 1925-02-18
Abstract: 237,823. Blomfield, A. Feb. 18, 1925. Stretchers, garment; presses.-A board 1 or the equivalent is provided with a pair of abutments engaged by a resilient, arched strip 4 over which the garment is stretched. The garment is gripped at one end by a pair of rods 8, 9 pivoted together at 11 and engaged by an eccentric roller 12. At the other end a bar 5 is carried by pivoted arms 6 and the garment is put underneath and pulled longitudinally. On releasing the garment, the bar grips it against the base board. Flexible strips 17 engaging the end-gripping rods facilitate the creasing of the garment. A drawer 18 is provided beneath the arched surface. A tie press 19 may be provided on the base board and may comprise a spring-pressed board. The gripping rods may be cut away at 20 to facilitate the prodoction of creases in trousers.
Patent GB-947042-A (GB)
Title: A limit temperature indicating means
Inventor: WHITELAW ROBERT
IPC: G01K1/14
Filed: 1959-02-10
Abstract: 947,042. Temperature indicators. ROBERT WHITELAW (NEWCASTLE) Ltd. May 10,1960 [Feb.10, 1959],No.4630/59. Heading G1D. A sterilization indicator comprises a strip of paper, or similar material which can be printed and coated, having one or more symbols on one side thereof which is coated or otherwise treated so that on reaching the sterilization temperature the symbol or symbols become visible or are rendered invisible due to a physical change occuring in the coating. The strips are in the form of a perforated sheet and may be of book form each strip being printed with "sterilized" or similar wording in dark blue ink on a light background. The surface is coated with a blue-black compound containing starch and iodine so that the wording is observed before heating but after sterilization temperature has been reached the coating changes to a lighter colour and so allows the wording to be seen. The perforated sheets may be gum-backed for attachment to articles or may be in the form of cellulose tape.
Patent GB-511290-A (GB)
Title: Improvements in mattresses, seat bases and the like
IPC: A47C23/30
Filed: 1938-02-15
Abstract: 511,290. Spring upholstery. HENDERSON, A. Feb. 15, 1938, No. 4676. [Class 52 (iv)] A mattress surface is supported by upholstery springs 11 or by struts mounted on a foundation which is supported by transverse tension springs 19 and by separate non-extensible transverse members 9 which come into operation after a predetermined compression. The foundation preferably consists of webbing strips 8 carried by tension springs 10 and the transverse springs 19 pass beneath some of the strips 8 and over others to provide support at selected areas. The mattress frame may be braced by internal longitudinal truss bars giving an adjustable outward thrust. Specification 472,657 is referred to.