baber/WOPTO huggingface dataset:
Patent GB-1185341-A (GB)
Title: Improvements in or relating to Cyclobutano- and Cyclobuteno-(3',4':6,7)-Corticoids
IPC: C07J75/00
Filed: 1967-04-21
Abstract: 1,185,341. Cyclobutano- and cyclobuteno- (3<SP>1</SP>,4<SP>1</SP> : 6,7)-pregnene compounds. SYNTEX CORP. 21 April, 1967 [25 April, 1966; 10 April, 1967], No. 18513/67. Heading C2U. [Also in Division C7] Novel steroids of the formulµ (wherein Z is a carbon-carbon single or double bond; R<SP>1</SP> is H, tetrahydropyran-2-yl oracyl; R<SP>2</SP> is H, OH or acyl; R<SP>3</SP> is H, α- or #-CH 3 , α-F, α-OH or α-O acyl, or R<SP>2</SP> and R<SP>3</SP> together are α,α-methylenedioxy optionally alkyl, aralkyl or aryl mono-substituted with or without a further alkyl substituent, R<SP>4</SP> is H or F; R<SP>5</SP> is OH or O alkyl or together are -O-; and R<SP>7</SP> is H, CH 3  or F) are prepared by adding photochemically in an inert organic solvent and under ultra violet irradiation maleic anhydride or its dimethyl or difluoro derivatives to an appropriate 3-keto-#<SP>4'6</SP>-diene to give products (A) where R<SP>5</SP> together are -O- and then, when required, (1) refluxing these products with an appropriate alkanol in the presence of a strong acid to give products (A) wherein R<SP>5</SP> is alkoxy; (2) hydrolysing the initial products to give products (A) where R<SP>5</SP> is OH; (3) esterifying the products of (2) to give the same products as in (1); (4) oxidatively decarboxylating the products of (2) with lead tetra-acetate or thallium triacetate or by an electrochemical oxidation, and (5) dehydrogenating any products with 2,3-dichloro-5,6-dicyanobenzoquinone to give the corresponding #<SP>1,4</SP>-compounds. The photochemical addition results in the formation of a mixture of 4,5-cyclobutano adducts (predominantly 4α, 5α) and the required 6,7-adducts of both α- and #-configuration, and this mixture may be separated at this or a later stage by conventional techniques. A free OH group may be protected by acylation and subsequently released; and, if desired, re-esterified. A 21 -tetrahydropyranyloxy group is hydrolysed during process (1) or (3) but it may subsequently be re-formed. 16α, 17α- Diol products may be converted to the 16α, 17α-acetals or ketals. Products (B) may be converted to the corresponding cyclobutano adducts (see Specification 1,118,866) by catalytic hydrogenation. The steroids of the invention, which are stated to possess anti-inflammatory activity, may be made up into pharmaceutical compositions with suitable carriers.
Patent GB-834013-A (GB)
Title: Improvements in or relating to devices for connecting together the lid and the body of a receptacle
IPC: B65D45/16
Filed: 1956-06-15
Abstract: 834,013. Lids and covers. FEIDERT, J. June 15, 1956 [June 17, 1955], No. 18530/56. Class 66. [Also in Group XXV] The lid 4 of a receptacle 5 has a pivoted handle 1 adapted when turned upwardly to cause a sliding bolt 8 to enter an opening 11 in the side of the receptacle, the bolt 8 and the opening 11 having projections 12, 13, which, at the moment of lifting the receptacle by the handle 1, engage one another to prevent disengagement of the coupling bolt 8 during transport of the receptacle.
Patent GB-716465-A (GB)
Title: Aircraft with quadricycle landing gear
IPC: B64C25/34
Filed: 1952-07-22
Abstract: 716,465. Aircraft undercarriages. BOEING AIRPLANE CO. July 22, 1952 [July 27, 1951], No. 18545/52. Class 4 An aeroplane has four alighting units attached to the fuselage arranged in pairs, one pair fore, the other aft, the retracting axes of each unit being inclined upwardly and outwardly so that when retracted the wheels lie in the vicinity of the plane of symmetry of the aircraft, a shock absorbing strut being provided. Referring to Fig. 4, the wheels 1 are mounted on a shock absorbing strut 2 arranged to swing about an axis 22 inclined upwardly and outwardly. Two such units are mounted on a reinforced bulkhead 91, one unit retracting forwardly and upwardly, and one rearwardly and upwardly. Referring to Fig. 3. the jack 3 retracts the strut 2 about axis 22. Struts 41 and 42 are adapted to lock the strut 2 in the retracted or extended position, being pivoted at 40. and having a p.n 44 mounted on twin levers 48 pivoted to strut 41 engaging a hook 45 on strut 42. Actuator 46 effects release of pin 44 moving it to a position remote from axis 40, enabling the hook 45 to clear the pin, and jack 3 to retract the unit, the axis indicated at 43 passing through opening 92 in bulkhead 91 before axis 40, and sufficiently far to enable struts 41 and 42 to straighten out again, when pin 44 re-engages in hook 45. Any suitable means may be employed to prevent the strut breaking the wrong way. Wing tip wheels may be provided in case of dangerous lateral tilt, and do not normally contact the ground.
Patent GB-1185534-A (GB)
Title: A Method of Forming Receptacles
IPC: B21D22/20
Filed: 1967-04-21
Abstract: 1,185,534. Forming metal foil. SOC. D'OUTILLAGE DE BONDY ET SOPEM REUNIES. 21 April, 1967 [21 April, 1966; 13 Feb., 1967], No. 18554/67. Heading B6J. In a method of forming hollow receptacles from blanks 1 of metal foil, radiating strengthening ribs 2, separating individual malleable areas 3 are formed on the blank which is then mounted in an unclamped condition between male and female dies and pressed while so mounted whereby the malleable areas are able to adapt the configuration of regular folds, Fig. 5, between and in the same direction as the preformed strengthening ribs. During the pressing operation the periphery of the ribbed blank may be disposed between the female die 4 and a blank holder 6, Fig. 6, such that the blank slides between die 4 and holder 6 as it is moulded about male die 5. The gap 7 always exceeds the thickness of the ribbed blank and this is ensured during forming by spacers 8.
Patent GB-530707-A (GB)
Title: Improvements in method and apparatus for pressing
IPC: D06F71/34
Filed: 1939-06-26
Abstract: 530,707. Ironing-presses. BRITISH CELANESE, Ltd. June 26, 1939, No. 18592. Convention date, March 9. [Class 138 (ii)] A press, particularly for suits or fabrics made from or containing cellulose acetate or other organic derivative of cellulose is provided with means for supplying to the press head a mixture of steam and inert gas, such as air, which is caused to pass through the article whilst it is under mechanical pressure. In the form shown, the press head 3 is provided with a chamber 6 having a perforated face 4, steam and air being admitted to the chamber from pipes 10, 11 respectively. A condensation trap 9 is provided.
Patent GB-1109596-A (GB)
Title: Shutter control device
Inventor: WELZEL HERBERT
IPC: G03B9/64
Filed: 1966-04-28
Abstract: 1,109,596. Shutter delay mechanism. PENTACON DRESDEN KAMERA-UND KINOWERKE VEB. April 28, 1966, No.18640/66. Heading G2A.  The mechanism is described in connection with a two-curtain type of shutter, the running-down of the second curtain to terminate the exposure causing a pinion 7 to rotate a gear-wheel 8 in the direction of the arrow. The wheel 8 carries a pin 6, and the running-down is blocked by a pawl 2, pivoted on a spindle 1, and drawn by a spring 4 in the same direction as in which it is attracted by an electromagnet 3. When the electromagnet is energized, the pawl 2, which forms the armature, is held against it so that the pin 6 latches into a groove 5, and further movement of gearwheel 8 is prevented. When the magnet 3 is deenergized at the end of the exposure period, the force acting on wheel 8 can overcome the spring 4, and pawl 2 is forced back to allow pin 6 to move out of groove 5, and so the running-down is completed. When the shutter is re-tensioned, wheel 8 is turned in the direction opposite to the arrow until pin 6 once more latches into groove 5, where it is retained by spring 4.
Patent GB-996101-A (GB)
Title: A process for preparing internally plasticised phenolic resins
IPC: C08G8/28
Filed: 1963-05-10
Abstract: Internally-plasticized phenol-formaldehyde resins are obtained by mixing the resin with esters or partial esters of epoxidized unsaturated aliphatic acids and saturated or unsaturated mono- or poly-alcohols, with amides, nitriles, hydrazines, hydrazidines or amidrazones of said acids, or with epoxidized esters of saturated aliphatic carboxylic acids and unsaturated alcohols, and curing the mixture.  The resin may be a condensate of formaldehyde with mono- or poly-phenols and/or alkylated phenols and may be a novolac or a resole.  Specified epoxy compounds are epoxidized soy, safflower and linseed oils, butyl epoxystearate, glycidyl stearate and epoxidized allyl oleate.  Epoxidized soy oil is used in both examples wherein the respective airing agents are formaldehyde plus ammonia and hexamine.  Curing of the mixture may be catalysed by residual catalysts in the phenoplast, e.g. oxalic, sulphuric or phosphoric acid, ammonia, amines or alkali or alkaline earth metal hydroxides. Specified applications of the products are laminated materials such as solid fabrics and hard paper capable of being cold-stamped, moulded masses, insulating silk and paper and elastic coatings.
Patent GB-1219352-A (GB)
Title: Compositions containing vinyl chloride polymers
Inventor: HARRIS DAVID NEIL
IPC: C08L27/06
Filed: 1968-04-19
Abstract: 1,219,352. Vinyl chloride polymer compositions. IMPERIAL CHEMICAL INDUSTRIES Ltd. 2 April, 1969 [19 April, 1968], No. 18672/68. Headings C3G and C3P. Blends of a vinyl chloride polymer with a polymeric modifier containing less than 40% butadiene units are obtained by adding a latex of the modifier to suspension polymerized vinyl chloride, still in aqueous suspension, in an amount of 0À1-40 parts of modifier per 100 parts of vinyl chloride polymer, coagulating the latex and agitating the mixture in the presence of 0À1-10% by weight of the vinyl chloride polymer of an organic liquid which renders the modifier particles tacky followed by filtration and drying to provide a powder in which at least 75% of the modifier is retained and at least 99% of which powder will pass through a 52 mesh sieve (Brit. Standard Fine Sieve Series). The liquid used is preferably vinyl chloride, e.g. excess monomer from the suspension polymerization; also exemplified is glyceryl monooleate. Calcium formate is used as coagulant. The polymers added in the Examples are methyl methacrylate-ethyl acrylate and graft polymers of methyl methacrylate and ethyl acrylate on butadiene-styrene. In one example a vinyl chloride-propylene copolymer is used, in another vinyl chloride-vinyl acetate and homopolymer is used in the remainder.
Patent GB-923618-A (GB)
Title: Device for protecting slide-ways of machine tools or the like
Inventor: RENE DEFLANDRE
IPC: B23Q11/00
Filed: 1961-05-24
Abstract: 923,618. Machine-tool details. DEREFA, ETABLISSEMENT POUR LE DEVELOPPEMENT, RECHERCHES ET FABRICATIONS INDUSTRIELLES. May 24, 1961 [May 27, 1960], No. 18752/61. Class 83 (3). [Also in Group XXIV] In a machine tool, air is blown between a slideway and a collapsible covering element 11a of plastics, leather or metal sheeting to prevent the ingress of dust. In a milling and boring machine, the spindle head 3 is displaceable vertically on a horizontally-movable column 1. Air is drawn from an external pipe 35 and blown through ducts 33, 27, the outlets beneath the telescopic element 11a being controlled by valves 29. Similar air supply means are provided for the covering means 11b, 44a.
Patent GB-401799-A (GB)
Title: Improvements in detachable eye shields for use with spectacles or the like
IPC: G02C9/04
Filed: 1932-07-02
Abstract: 401,799. Eye shields. ANSELL, A., 64A, Uxbridge Road, Shepherds Bush, London. July 2, 1932, No. 18764. [Class 97 (i).] A detachable shield to be used in conjunction with a spectacle frame for reducing glare is made of such size as only partly to cover the field of view and is attached to the spectacle frame in such a way that it can be turned to any desired position about the axis of the eye. The shields c may be formed or provided with clips a for attachment to the rims as in Fig. 1 or they may be mounted, together with the lenses or glasses d in the grooves e in the rims as in Fig. 12.
Patent GB-738702-A (GB)
Title: Improvements in the production of anhydrous sodium sulphide
IPC: C01B17/28
Filed: 1953-07-07
Abstract: Anhydrous sodium sulphide is produced by reacting sodium sulphate with reducing gases in a fluidized layer, the walls of the reaction chamber which come into contact with said layer being kept at a temperature which is not higher than that of the layer. Heat may be supplied to the layer by preheating the gas or the sodium sulphate to a temperature above that in the layer.  The walls may be uninsulated or only slightly insulated, to permit heat radiation.  Specification 700,132 is referred to.
Patent GB-892229-A (GB)
Title: Linear dimension measuring instruments
IPC: G01B3/02
Filed: 1958-06-13
Abstract: 892,229. Sliding-jaw gauges. SIMPSON, J. R. June 5, 1959 [June 13, 1958], No. 18900/58. Class 106 (2). A linear - dimension gauge comprises a main guide-bar 1 having projections 4 at regular intervals, a main slide 6 disposed on the guide-bar 1 with means 5 for engaging the projections, a cross-slide 9 with an inclined edge disposed upon the main slide 6 and a scale 13 attached to the bar 1 tc register with graduations on the cross-slide 9. The slide 9 is urged to the left against a stop 14 by a spring (not shown), and a further slide 10, with an edge mating with the inclined edge of the slide 9, is urged downwards by a second spring (also not shown) against the cross-slide 9. In use, an object to be measured is inserted between the slide 10 and a member 2 attached to the guidebar 1. The cross-slide 9 is then retracted, and the main slide 6 adjusted, by means of the member 5 mating with the projections 4, as close to the workpiece as possible. The crossslide 9 is then released and a measurement can be taken by use of the scale on the member 9 and a vernier on the member 10. The projections 4 may be in the form of teeth engaging a rack 5 as shown. Alternatively, a screw thread engaged by a split-nut or a set of balls or rollers engaged by suitably shaped members may be used. The apparatus may also be embodied in height or depth gauges.
Patent GB-983008-A (GB)
Title: Valve device for calcining kettles and like vessels
IPC: B01J6/00
Filed: 1962-05-16
Abstract: 983,008. Valves. BRITISH PLASTER BOARD (HOLDINGS) Ltd. May 16, 1962 [Sept. 1, 1961], No. 18930/62. Heading F2V. [Also in Divisions B8 and F4] A valve controlling a discharge aperture 13, Fig. 1, of a calcining kettle comprises a valve closure member 33 mounted on a valve rod 34, the rod being connected to a fluid-pressure motor 25 for actuating the valve. The rod 34 is provided with a slot 49, Fig. 3, through which a key bar 53 passes, the key bar also passing through a sleeve 50 which freely surrounds the rod 34. Retaining pins 54 are provided for the key bar. The sleeve 50 has a flange 51 and a hexagonal sleeve portion 56 which is connected by a lever arm 58 to a fluid motor 60. Actuation of the motor 60 rotates the rod and valve closure 33 to clean the valve seat 35. A grease nipple 52 is provided for lubricating the rod. The valve closure 33 is mounted on the rod through a pin 46 which allows rocking movement of the closure 33, such movement being limited by a reinforced plate 37.
Patent GB-452844-A (GB)
Title: Improvements in or relating to cathode ray tubes
IPC: H01J29/46
Filed: 1934-11-26
Abstract: 452,844. Cathode-ray tubes. RADIOAKT.-GES. D. S. LOEWE, 10, Wiesenweg, Steglitz, Berlin. Nov. 26, 1934, No. 18970/36. Convention date, Nov. 27, 1933. Divided out of 452,650. [Class 39 (i)] In cathode-ray tubes, particularly highvacuum television tubes, in which the devices for controlling the intensity of the ray, if present, are of the type controlling primarily the cathode emission, an aperture in a diaphragm 8 is electron-optically reproduced on the image screen S and the electrons from the cathode 1 are weakly concentrated towards the diaphragm 8 so that the cathode-rays do not intersect in the aperture nor between the cathode and the diaphragm 8. The control electrode comprises a perforated plate 2 and a cylinder 3. The diameter of the cylinder 3 is of the same order as its distance from the first accelerating electrode 7 and the cylinder extends beyond the disc 2 towards the electrode 7 to form a focusing rim of height about one-third of this diameter. The rays are parallel or diverge at a small angle at the diaphragm 8 and the diameter of the electron beam at the diaphragm is a minimum, of the same order as the emissive cathode spot, when the ray intensity is a maximum. Potentiometers 4, 5 are provided for adjusting the potentials of the electrodes 2, 7 in opposite directions so as to adjust the focusing by these electrodes whilst not varying the intensity of the ray. The distance of the electrode 2 from the diaphragm 8 is large and of the order of 30 mm. so that a thin electron beam is produced and can be focused and deflected without loss of electrons by an electron lens of limited aperture and deflecting plates 14 ... 17 close together. The electron lens reproducing the aperture in the diaphragm 8 on the screen S comprises a tube 9 and a disc 13 of large aperture and connected by springs 19 to a wall coating 18. The plates 14 ... 17 are supported on four glass tubes 10, 11 containing the plate leads and passing through guide collars 20, 21. To shield the ray from stray electrostatic fields, a screen 12 is provided and the tube 9 may extend and be connected to the electrode 7. Dimensions of the electrode system are specified. The arrangements described in Specification 452,650 may be included. Specification 442,511 also is referred to. Reference has been directed by the Comptroller to Specifications 380,381, 391,360, 417,850, and 446,635, and to Specifications 406,009 and 420,667 (as open to inspection under Sect. 91 of the Acts).
Patent GB-201739-A (GB)
Title: Improvements relating to swing seats and the like
IPC: A63G9/00
Filed: 1922-07-13
Abstract: 201,739. Fitter, B. H. July 13, 1922. Trestles for swing seats &c., of the type adapted to be suspended from the horizontal bar of a stand, are provided at their upper ends with a triangular strengthening frame secured at its apex to the horizontal suspension member, and at the corners of its base to the leg members of the respective trestle. As shown, the strengthening frame consists of a pair of side bars 7 joined by a cross-bar 9 and connected to the trestle legs 4 by bolts 12, one side bar being extended at its upper end and bolted to the horizontal member 3 which supports the seat. Awnings and canopies for exposed seats.-A canopy is adjustably mounted over the seat on a pair of horizontal bars 13, each carried by pivoted stays 14 mounted on the bolts 12 on the trestle legs and secured by wing-nuts 16.
Patent GB-596497-A (GB)
Title: Improved machine tool guard
IPC: F16P3/08
Filed: 1945-07-27
Abstract: 596,497. Machinery guards. DEACON, H. G. July 27, 1945, Nos. 19263 and 20737. [Class 80(iv)] A guard for a drilling machine comprises a fixed rear part 6 and a hinged front part 9 which latter is held in both open and closed positions by a spring 5. In the open position shown the part 9 obstructs the feed mechanism 15 of the drill and operates a switch 1 to stop the driving motor. Both rear and front guard parts may be provided with a transparent shield 8.
Patent GB-1422307-A (GB)
Title: Ion generator
IPC: H01J3/04
Filed: 1974-05-02
Abstract: 1422307 Ion sources INTERNATIONAL BUSINESS MACHINES CORP 2 May 1974 [28 June 1973] 19290/74 Heading H1D A source of ions, e.g. of sodium, comprises a source producing a stream 14 of particles of the material to be ionized and three lasers 16, 18, 28 whose beams are focused on the stream of particles one laser having a frequency resonant with the atoms to be ionized to raise them to an excited state, a second laser having a frequency to raise the atoms to a second higher excited state and the third having a frequency such as to ionize the atoms. The sodium is vaporized in a vessel 4 and emerges through a nozzle 12, 10 as a supersonic stream of atoms. The lasers are conveniently the tunable dye type.
Patent GB-186465-A (GB)
Title: Improvements in self-aligning contacts for electrical apparatus
IPC: H01R13/42
Filed: 1921-07-18
Abstract: 186,465. Raettig, B. July 18, 1921. Concocts, self-aligning, for electrical apparatus comprise a socket contact mounted in an insulating base by means of a carrier member which is provided with one or more holes through which pass loosely one or more members connected to the contact. The plug for use with the socket may be loosely mounted in its insulating base. According to Fig. 1 a contact d has a terminal e with a reduced neck f screwed into it and the neck fits loosely in a hole o in a carrier b secured in an opening in the insulating base. The clearances permit axial, lateral, turning, and tilting movements of the contact. The hole o may be replaced by an open-ended slot, the carrier being secured in a position at right angles to that shown. Fig. 3 shows a carrier comprising two members h with holes through which pass loosely screws i secured on a block to which the contact springs d are riveted. The plug l, Fig. 5, may have a square stem m loosely fitting a square hole in the insulator and a collar s arranged to permit limited axial movement.
Patent GB-1151556-A (GB)
Title: Bis-caprolactams and Polymides obtained therefrom
IPC: C08G69/18
Filed: 1967-04-27
Abstract: 1,151,556. #,#<SP>1</SP>-Bis-#-caprolactam. STAMICARBON N.V. 27 April, 1967 [5 May, 1966], No. 19393/67. Heading C2C. [Also in Division C3] The novel compound #,#<SP>1</SP>-bis- #-caprolactam may be prepared by irradiating #-caprolactam in the liquid phase with ultra-violet radiation in the presence of an irradiation activating agent, suitably acetone, diethyl ketone or acetophenone.
Patent GB-1302353-A (GB)
IPC: A61K31/13
Filed: 1970-04-23
Abstract: 1302353 Fluorene derivatives SANDOZ Ltd 23 April 1970 [3 June 1969] 19446/70 Addition to 1244348 Heading C2C Compounds of the general formula (R = tert.-pentyl or 3-pentyl) and their salts are prepared by reacting 4-(2,3-epoxypropoxy)- 9-fluorenone and/or 4-(3-chloro- or bromo-2- hydroxypropoxy)-9-fluorenone with RNH 2 , optionally followed by salt formation. The preparation of the fluorenone starting materials by standard methods is described. The above compounds are #-adrenergic blocking agents, and may be administered in the form of pharmaceutical preparations containing them in association with a carrier.
Patent GB-1462935-A (GB)
Title: Circuit arrangement
IPC: G11C11/41
Filed: 1974-05-03
Abstract: 1462935 Automatic voltage control INTERNATIONAL BUSINESS MACHINES CORP 3 May 1974 [29 June 1973] 19454/74 Heading G3R A plurality of field effect transistors are arranged on a substrate of a semi-conductor chip to which is applied a potential lying outside the range of upper and lower potential levels which are connected across certain of the FET's. The substrate potential is regulated to a desired level. As shown, each one of a series of semiconductor chips 1-N has formed on it a control arrangement for stabilizing the threshold voltages of FET's formed on the chips. Spread in intrinsic threshold voltages, and variations in the power supply to the chips are compensated. In the case of chip 1, a circuit 100 includes a substrate voltage detector 30 comprising a pair of FET's 31, 32 forming a voltage divider connected between earth and a positive supply voltage +V. The junction voltage is compared by an FET 34 with the substrate voltage, producing a signal which controls the conduction of an FET 27 in an inverter 20 receiving a high frequency pulsed input from a ring oscillator 10 also formed on the chip. The inverter produces a further signal to control an FET 41 in a voltage level converter 40 which determines the magnitude of a negative potential connected to the substrate by way of a diode D1.