baber/WOPTO huggingface dataset:
Patent GB-721700-A (GB)
Title: Process for the production of phenols and carbonyl compounds
Filed: 1952-05-01
Abstract: In a process for the production of phenols and carbonyl compounds by the decomposition by means of sulphuric acid of a hydroperoxide of an aromatic hydrocarbon substituted by one or more alkyl groups of which at least one contains a secondary or tertiary carbon atom, the hydroperoxide and the sulphuric acid are brought into contact at elevated temperature in the presence of a quantity of the phenol to be formed in the reaction, said phenol being introduced before the reaction has commenced, the initial reaction mixture being free from the carbonyl compound formed in the fission reaction or containing a proportion of such carbonyl compound less than 10 per cent of the combined weight of said phenol and said carbonyl compound. Hydroperoxides mentioned are those of cumene and its homologues, e.g. of p-cymene, isobutylbenzene, di-isopropylbenzene and ethylbenzene (which yields phenol and acetaldehyde).  The hydroperoxide and phenol may be mixed before adding the acid, but preferably the acid and hydroperoxide are added simultaneously to a hot mass of liquid phenol (termed a "foot").  The sulphuric acid may be in such amounts as 1 to 5 per cent by weight in relation to the hydroperoxide and may be used at a concentration of 30 to 75 per cent, which is completely soluble in the "foot".  The cumene hydroperoxide may be a crude product resulting from the partial oxidation of cumene from which the greater part of the unconverted hydrocarbon has been removed by distillation and/or steam distillation.  Such a product may contain, for example, 5 per cent of cumene and 5 per cent of water, or a higher cumene content for less water.  The reaction is preferably carried out at below 65 DEG  C.  It may be performed continuously, if desired with elimination of the carbonyl compound as it is formed.  In examples (1) crude cumene hydroperoxide and 50 per cent sulphuric acid are run into phenol initially heated to 45 DEG  C. to give phenol, acetone, and as by-products, methyl-styrolene and acetophenone; (2) a similar process to (1) is effected at reduced pressure with continuous distillation of the acetone produced; (3) p-cymene peroxide and 50 per cent sulphuric acid are run into p-cresol heated at 40 DEG  C. Reaction is effected at 45 DEG  to 50 DEG  C. to give p-cresol and acetone; (4) in a similar process to (3) isobutylbenzene hydroperoxide is decomposed to give phenol and methylethyl ketone.
Patent GB-987722-A (GB)
Title: Air squeegee
Inventor: TOWNLEY EUSTACE RAYMOND
IPC: G03D15/02
Filed: 1963-03-20
Abstract: 987,722. Drying webs. ILFORD Ltd. March 18, 1964 [March 20, 1963], No. 11089/63. Heading F4G. An air squeegee for removing surface moisture from a web 14 comprises two sections 7, 8 held together by end plates (riot shown) and guide pins 4, which sections house in recesses fixed and floating cylinders 1, 2 respectively. The gap between the cylinders through which the web passes is maintained at a minimum distance by each cylinder 2 resting on the flanged ends of the co-operating Cylinder 1 and the floating cylinders 2 are normally held there by air from an inlet pipe 6 fed to the recesses 10 housing the cylinders 2. Some air from the recesses 10 also passes to the main air chamber 13 of the squeegee for passage through a gap on either side of the film to the back of the film which air is then forced out of the apparatus to prevent the film touching either of the two pairs of cylinders. Any increase in the gap between co-operating cylinders due to thickening of the film, e.g. by splicing, forces the cylinders 2 back into the recesses 10 and so restricts the air passage into the chamber 13. As a result, all the air from the pipe 6 is used to force back the cylinders 2 on to the cylinders 1 and so re-opens the passages to the chamber 13.
Patent GB-108861-A (GB)
IPC: B60Q1/04
Filed: 1917-08-01
Abstract: 108,861. Daimler-Motoren-Ges. Aug. 12, 1916, [Convention date]. Brackets, lamp. - A lamp bracket for a vehicle comprises a stem a fixed to the vehicle, a head-piece c rotatably mounted on the stem a, a perforated double cone-piece b between the stem and the head-piece c, a lamp-holder d having a pivot pin d<1> mounted in an elastic bearing or clamp on the head-piece c, and a screw g, which serves to clamp the pin d' within the bearing and to lock the head-piece c, the cone-piece b, and the stem a together. In one form, the bearing in the head-piece c is made resilient by forming or cutting a slot therein, and the pivot pin d<1> is furnished on one side with a trans. verse recess through which the screw g passes to limit the movement of the holder d when the screw g is slackened. The annular extension c' on the head-piece c fits over the stem a and prevents the entrance of foreign bodies.
Patent GB-192649-A (GB)
Title: Improvements in or relating to packing cases or the like
IPC: B65D6/00
Filed: 1922-04-20
Abstract: 192,649. Kail, W. W., Stacey, J. J., and Power, Ltd., J. F. April 20, 1922. Corner joints.-To prevent pilfering from a packing-case, a border frame 7 is provided on the inner face 4 of each of the end walls, and a metal strip 11 extending between the frame and the side walls and the bottom of the case is bent outwardly over the sides and inwardly over the lid 6, which is secured in position by nails passing through the free ends of the strip and into the top of the frame. The nails 12 securing the walls and bottom of the case are clinched over on the inside of the frame. The free ends of the strip may be sealed by a metal tab 13, Fig. 5, which is held between the end wall and frame and secured beneath a batten 15. A binding hoop 16 may be applied to each end of the case. In a modification, two metal strips are used, one down each side of the frame, and the bottom of the case is secured in the same manner as the lid.
Patent GB-527458-A (GB)
Title: Device for the dry disinfection of razors and other objects
IPC: A61L2/00
Filed: 1939-04-12
Abstract: 527,458. [Disinfecting apparatus. BRUNI, [nee BERGAMINI], C., and BRUNI, P. April 12, 1939, No. 11125. Convention date, April 12, 1938. Addition to 518,086. [Class 81 (i)] Apparatus for the dry disinfection of articles such as razors, scissors combs, or brushes described in the parent Specification, which comprises a chamber, a removable cover, a restricted article receiving opening closed by yieldable means and means for heating a disinfecting medium to provide a disinfecting atmosphere is characterized in that the opening 7 through which the articles are introduced is closed by two rotatable rollers 8, 8<SP>1</SP> maintained in contact by spring action, preferably opposed springs and capable of being moved apart against the action of the springs. The spindles of the rollers are guided in the slots 9 of the member 10. The rollers are covered with a resilient material such as rubber or leather. The casing comprises a cylindrical member 2 of glass mica or celluloid held in place by an upper cover 3 secured by rods 4 and nuts 5. A dome 6 is hinged on the cover and covers the opening 7. The articles are supported on a perforated cup 11 sliding on the guides 12, a set of springs tending to keep the cup in the upper position. The base 1 contains an electric heater for volatilizing the disinfectant.
Patent GB-293924-A (GB)
Title: Improvements in the manufacture and application of aroylating agents
IPC: C09B1/42
Filed: 1927-04-26
Abstract: 293,924. British Dyestuffs Corporation, Ltd., Bunbury, H. M., and Shepherdson, A. April 26, 1927. Aroylaminoanthraquinones; benzoyl chloride; benzoic anhydride.-Solutions for effecting aroylation of aromatic amino compounds are produced by interaction, in the presence of high boiling inert solvents, of an aromatic carboxylic acid with a compound of the benzotrichloride type which, by hydrolysis gives the said acid. Known catalysts may be used and the solvent, e.g., nitrobenzene, nitrotoluenes, chlornitrobenzenes, dichlorbenzenes, should give a reaction temperature of above 160‹ C. In examples; (1) 1 mol. of benzoic acid is heated with 1 mol. of benzotrichloride in the presence of nitrobenzene: a solution containing benzoylchloride being obtained : (2) 1 mol. of benzotrichloride is heated with 3 mols. of benzoic acid in the presence of nitrobenzene, a solution containing benzoic anhydride being obtained; the time of reaction is shortened by adding zinc chloride as catalyst : (3) dibenzoyl- 1 : 4-diaminoanthraquinone is produced by benzoylating the parent body or its leuco derivative with a benzoylating agent prepared as in (1) above : (4) dibenzoyl-4 : 4<1>-diamino-1 : 1<1>-dianthrimide is produced by similarly benzoylating the parent body: (5) monobenzoyl-1 : 4-diaminoanthraquinone is produced by benzoylating leuco 1 : 4-diaminoanthraquinone by means of the benzoylating agent prepared in (2) above. Aroylating agents prepared by interaction of alkoxybenzotrichlorides with the corresponding acids in the presence of high boiling solvents are also mentioned. Specifications 2878/80, 255,630; 270,773, [Class 20 (iv), Floors &c.], and 280,373 are referred to. Alkoxybenzotrichlorides are prepared by side chain chlorination of cresolalkylethers.
Patent GB-1352603-A (GB)
Title: Contacting of disparate phases
IPC: B01F3/12
Filed: 1971-04-23
Abstract: 1352603 Mixing; filtering; disc mills; pin mills F J ZUCKER and H D BRUCHMANN [trading as DEUTSCHE SUPRATON BRUCHMANN & ZUCKER KG] 23 April 1971 [23 April 1970] 11163/71 Headings B1C B1D and B2A In a process for preferring a solution, suspension or dispersion, comminuted solid and liquid are mixed in a container 1, pass to an apparatus 3 in which the solid is comminuted by friction, impact, shearing and/or cavitation, and thence to a filter 5 having a tubular element 6 whence filtrate is extracted by a pump 9 while part of the liquid containing solid particles over a predetermined size is returned through a throttling valve 14 to the container 1. The liquid phase may be an emulsion. As described the apparatus 3 is a centrifugal device comprising a rotor 16 and stator 17 having interdigitating rings or projections, the clearance between which may be adjusted to control particle size. The filter element may be backwashed to clear it by intermittant reversal of the pump 9, or by providing in an extension of the pipe 8 a piston periodically operated by a hydraulic or pneumatic cylinder (19, Fig. 2 not shown).
Patent GB-235159-A (GB)
Title: Electroplating with cadmium
IPC: C25D3/28
Filed: 1925-04-30
Abstract: 235,159. Udylite Process Co., (Assignees of Louth, M. E., and Young, A. W.). June 5, 1924, [Convention date]. Cadmium, depositing.-Anodes comprising a combination of active and inactive materials are employed in conjunction with a cyanide bath containing from  to 6 oz. of cadmium and from 2¢ to 10 oz. of free sodium cyanide per American gallon. The preferred proportions are 2 oz. of cadmium and 6 oz. of free sodium cyanide per American gallon. The bath may be made up by dissolving cadmium oxide, hydroxide, or carbonate in sodium cyanide solution. The cadmium compounds used should be pure, especially in regard to thallium, tin, and lead. The anodes may be of steel and metallic cadmium. The ratio of the surface of soluble material to that of insoluble material should be between the limits 1 to 3 and 3 to 1, the preferred ratio being 45 to 55. The ratio of the cathode surface to anode surface should be between 1¢ to 1 and 1 to 1. The current density may be from 4 to 100 amps. per sq. ft., but should not be greater than 30 amps. per sq. ft. when a brightening agent is used. The latter may consist of ¢ to 10 gms. of wool, or ¢ to 2¢ gms. of casein, or 5 to 40 cc. of evaporated milk per American gallon. Wool is dissolved in warm concentrated caustic soda, and casein in warm dilute ammonia before addition to the bath. The deposits may be buffed. Specification 178,422 is referred to. According to the Specification as open to inspection under Sect. 91 (3) (a) anodes formed wholly of soluble or wholly of insoluble material may be employed, the bath proportions being correspondingly modified. This subject-matter does not appear in the Specification as accepted. Nickel, depositing.-The cadmium deposits may be over-coated with nickel.
Patent GB-577183-A (GB)
Title: Improvements in and relating to the control of electric motors driving winding engines, hoists and the like
Inventor: PETCH THOMAS HAYES
IPC: H02P7/34
Filed: 1943-07-12
Abstract: 577,183. Variable voltage control of D.C. motors. BRITISH THOMSON-HOUSTON CO., Ltd., and PETCH, T. H. July 12, 1943, No. 11244. [Class 38 (iii)] A Ward-Leonard set for operating a winding engine, hoist, or the like comprises a motor 1 and generator 3, the latter being excited by an amplidyne machine 5 (or two normal exciters in cascade) having a control winding 6 which is energised from the arms 7a, 7b of a control potentiometer 7 of the reversing type. A time delay circuit comprising opposed rectifiers Ila, 11b and an energy storing device, such as a condenser, or a separately excited motor 13, 15 connected to a flywheel 14, shunts the control winding 6 (shown by the dotted connection Y) in order to slow down the response of the set to large and rapid movements of the controller 7 whilst allowing rapid response to small movements of the controller. A portion of a negative feed-back resistance 8 may be included in the control circuit, in which case the time delay circuit shunts this portion of resistance and the winding 6 in series, as shown by the full line connection. A resistance 12 may shunt the device 13 when different time constants are required of the delay circuit for increasing and decreasing excitation of the control winding, respectively. Regenerative braking, under the control of the delay circuit, is obtained by a switch 16 which opens the circuit of the control winding. Alternatively, a separately excited dynamo-electric machine 17, 19 connected to a fly-wheel 18 may shunt the controller 7 and regenerative braking under the control of this machine may be obtained by opening as switch 20.
Patent GB-1453382-A (GB)
IPC: C08B13/00
Filed: 1974-03-13
Abstract: 1453382 Alkyl-hydroxyethyl-hydroxyalkyl cellulose BEROL KEMI AB 13 March 1974 [14 March 1973] 11276/74 Heading C3A A non-ionic cellulose ether has as substituents hydroxyethyl, hydroxypropyl and/or hydroxybutyl and one or more alkyl groups of 2 to 4 carbon atoms. The MS of the hydroxyethyl is 0À1 to 2À5, for the total hydroxybutyl plus hydroxypropyl 0À1 to 4À0 and the alkyl DS is from 0À05 to 1À5. In the examples the ethers made are ethylhydroxyethyl - hydroxypropyl, ethyl - hydroxyethylhydroxybutyl, ethyl - hydroxyethylhydroxypropylhydroxybutyl, propyl-hydroxyethyl-hydroxypropyl and butyl-hydroxyethylhydroxypropyl cellulose. The DS and MS values of all these ethers are specified and the manner in which these values affect such properties as viscosity, flocculating temperature and clarity are investigated. The preferred preparation of these ethers is by mixing alkali cellulose with the appropriate alkyl chloride, treating the mixture at 50 to 75 C. with ethylene oxide, propylene oxide and/or butylene oxide and then raising the temperature to 70 to 120 C. to allow the alkyl chloride to react.
Patent GB-649009-A (GB)
Title: An improved control lever mechanism
IPC: F16C1/18
Filed: 1948-04-26
Abstract: 649,009. Control lever mechanism. STURMEYARCHER GEARS, Ltd., and BROWN, W. April 26, 1948, No. 11354. [Class 136 (i)J In a control lever mechanism of the type described in Specification 498,820, the stepped portions of the operating quadrant b are made of such dissimilar proportions relative to the first quadrant a that when the operating quadrant is in its normal position its periphery at the base of each step of the quadrant a is above that of the quadrant a so as to be engaged by and determine the inward position of the spring-loaded pawl c while the pawl is engaged with any one step face in the quadrant a, whereby the pawl holds the operating quadrant at the extreme normal position of pin-and-aperture engagement relative to the quadrant a to prevent vibration, while the step face of the first quadrant a engaged with the pawl determines the angular position of the quadrant a about its pivot H. The quadrant a has three steps a<SP>1</SP>, a<SP>2</SP>, a<SP>3</SP>. A stud hole a<SP>9</SP> carries a fixed pivot stud I for the operating quadrant b which has three steps b<SP>1</SP>, b<SP>2</SP>, b<SP>3</SP>. The surfaces between the steps are made straight instead of arcuate.
Patent GB-113597-A (GB)
IPC: F16D43/04
Abstract: 113,597. Albion Motor Car Co., and Murray, T. B. Jan. 15, 1918. Clutches, friction. - In centrifugally-operated constant-speed plate clutches of the type described in Specifications 2800/15, a clutchplate F, turning with the driving-shaft A, is pressed into engagement with a plate L on the driven pulley K by the arms of weighted bellcrank lever s D, against which bear springs H. The weight and length of each of the levers D and the strength of each of the springs Hare so arranged that the pressures of the levers are removed successively from the plate F as the speed rises.
Patent GB-396346-A (GB)
Title: Improvement in hose and the manufacture thereof
IPC: D04B11/00
Filed: 1933-04-19
Abstract: 396,346. Knitting. KAUFMAN, C. A., 119, East 84th Street, New York, U.S.A. April 19, 1933, No. 11408. Convention date, May 20, 1932. Drawings to Specification. [Class 74 (ii).] Full-fashioned stockings, parts thereof, or blanks therefor, devoid of horizontal bands, streaks or light and heavy shadings are obtained by forming successive series of courses in which each course is composed of a different thread from the threads forming the other courses of that series. A series preferably comprises an odd number of courses.
Patent GB-867948-A (GB)
Title: Apparatus for separation of liquids or of solids from a liquid
IPC: C02F1/00
Filed: 1959-04-03
Abstract: 867,948. Gravity-separation apparatus. CHAIN BELT CO. April 3, 1959 [April 14, 1958 ; March 2, 1959], No. 11436/59. Class 46. Liquid containing floating and settleable material is introduced via an inlet box 8, Fig. 2 to a channel formed between the outer wall 11 of the tank and an inner wall 10, the floor 12 of the channel rising around both halfcircumferences of the tank to a scum box 14 diametrically opposite the inlet box 8. The raw liquid is discharged through ports 23 in the wall 10 against a skirt 17. Sludge is withdrawn by an eductor tube 5 and clarified liquid by a trough 19 which is octagonal in plan and communicates with a discharge pipe 21a. In Fig. 4 the wall 10 and skirt 17 are replaced by a skirt 34 having, between it and the tank wall, a floor which rises from an inlet box 30 around both sides of the tank to a scum box 41. Here the ports 38 are in the channel floor, and are spaced apart by distances inversely proportional to their distances from the clarified liquid trough 25. Sludge is withdrawn by an extensible eduction tube 23a as described in U.S.A. Specification 2,863,564.
Patent GB-1244501-A (GB)
Title: Heterocyclic amines
Inventor: GITTOS MAURICE WARD
IPC: C07D217/22
Filed: 1968-03-09
Abstract: 1,244,501. Cardiovascular medicines. ASPRO -NICHOLAS Ltd. 26 Feb., 1969 [9 March, 1968], No. 11633/68. Heading A5B. [Also in Division C2] Pharmaceutical compositions comprise 1- amino derivatives of 3,4-dihydroisoquinoline or 4,5-dihydro-3H-2-benzazopine compounds and acid addition salts, quaternary ammonium derivatives and N....N ring closed derivatives thereof; e.g. compounds Ia and Ib in which R 1  and R 2  are H, OH, halo, alkyl, alkoxy, NH 2 , mono or dialkylamino, phenalkyl, alkyl sulphonamido or phenylsulphonamido, or together R 1  and R 2  are -O-CH 2 -O- or -OCH 2 CH 2 O-; R 3  is H or alkyl; n is 2 or 3; R 5  and R 6  are H, NH 2 , cycloalkyl, cycloalkylalkyl, alkyl (optionally substituted by OH, halo, acyl, alkoxy or amino), aryl or arylalkyl (optionally substituted by OH, halo, alkyl, alkoxy or NH 2 ), phenoxyalkyl, heterocyclyl or heterocyclylalkyl (optionally substituted by OH, halo, alkyl, alkoxy or NH 2 ), CN, OH, alkoxycarbonylamino, -[CH(R 7 )] m -C(=X)-R 8  or -(CH 2 ) p  -NH-C(=Y)-NR 9 R 10 ; or NR 5 R 6  is heterocyclyl (optionally substituted by alkyl, aryl or aralkyl; m is 0-5; R 7  is H, or alkyl; X is O or S; R 8  is OH, alkyl, alkoxy, aryl, aryloxy or amino (optionally substituted by alkyl, phenyl, or phenalkyl); Y is O, S, thioalkyl (i.e. group is -(CH 2 ) o -N=C(S alkyl)-NR 9 R 10 ), imino, alkylimino or guanidino (i.e. group is -(CH 2 ) p  -N=C (guanidino)-NR 9 R 10 ); R 9  and R 10  are H, alkyl, phenyl or phenalkyl; p is unsaturated chain of 2-3C one of which may be replaced by N and which chain may be substituted by OXO, alkyl, NH 2 , acyl or guanidino; together with a suitable carrier or diluent. The compositions have cardiovascular activity when internally or parenterally administered.
Patent GB-527666-A (GB)
Title: Improvements in or relating to modulated carrier wave signalling systems
IPC: H04B14/00
Filed: 1939-04-18
Abstract: 527,666. Modulating systems. MARCONI'S WIRELESS TELEGRAPH CO., Ltd. April 18, 1939, No. 11722. Convention date, April 19, 1938. [Class 40 (v)] A suppressed-carrier system includes the steps of phase or frequency modulating a high-frequency oscillation by a lower-frequency wave of constant amplitude, the amount of phase-swing of the latter being varied by the signal voltage. Or the carrierwave may be phase or frequency modulated by a lower-frequency wave of constant amplitude, and the characteristic of the modulated high-frequency wave varied in accordance with the signal voltage. In both cases, the amount of phase-modulation of the carrier is so chosen that, in the characteristic energyequation, the Bessel function of zero order vanishes, giving a radiated spectrum which is substantially free of carrier-frequency. In Fig. 1 the carrier is fed from a source 1 to a modulator 3 which is coupled to an aerial or linewire 5. The modulator 3 receives the output from a phase or frequency modulator 4 fed with a lowerfrequency wave from 2 and with signals from 6. In reception the signals arriving at 7 are passed first through a wide-band tuner 8 and then to a phasemodulation detector 9, which delivers a frequencymodulated wave (similar to that impressed by 4 upon 3) to a suitably-tuned circuit 10. This, in turn, feeds a frequency-modulation detector 11, from which the original signal is passed to a loud speaker 14. It is not necessary to re-introduce the suppressed carrier-wave at the receiving end.