baber/WOPTO huggingface dataset:
Patent GB-1489536-A (GB)
Title: Stabilised acrylic acid esters of polyhydric alcohols and a process for their preparation
IPC: C07B61/00
Filed: 1976-06-17
Abstract: 1489536 Stabilized acrylic acid esters BAYER AG 17 June 1976 [18 June 1975] 25114/76 Heading C2C Acrylic acid esters of polyhydric alcohols are stabilized by polymerization inhibitors which include unsaturated compounds as co-stabilizers wherein R<SP>1</SP> denotes hydrogen, alkyl (1-4 C), chlorine or alkoxy (1-4 C), R<SP>2</SP> denotes a hydrogen or alkyl (1-4 C), R<SP>3</SP> and R<SP>4</SP> denote a hydrogen, CH 2 OH, CH 2 OA, CHO, COOH, COOA, CONHAr, CH 2 Cl, CH 2 Br, CN or CONH-A where A denotes alkyl (1-6 C) and Ar an aryl radical (6-15 C). A proportion of 0À001 to 5% by weight based on the esters is used and the stabilizers and polymerization inhibitors may be introduced into the esterification reaction. Known polymerization inhibitors are listed and the costabilizers mentioned are styrene, α-methylstyrene, 4-tertbutylstyrene, 4-chloro-styrene, cinnamic acid or alcohol, cinnamaldehyde, p-methoxycinnamic acid, aldehyde and alcohol, cinnamyl chloride, cinnamic acid methyl or ethyl ester, cinnamic acid amide or anilide. Examples describe the preparation and stabilization of butane-1,4-diol, dimethylolpropane, and neopentyl glycol bis acrylates, trimethylol propane tris acrylate, butane-1,4-diol/trimethylolpropane mixed acrylate, propane - 1,3 - diol/trimethylolpropane acrylate, pentaerythritol tetraacrylate, trimethylolpropane diacrylate, and hexanediol bis-acrylate. The stabilized products may be used in lacquers, printing inks, moulding or casting compositions.
Patent GB-926042-A (GB)
Title: A knitted fabric and method of producing same
IPC: D04B1/06
Filed: 1959-07-23
Abstract: 926,042. Knitting. SDRUZENI PODNIKU TEXTILNIHO STROJIRENSTVI. July 23, 1959 [July 25, 1958], No. 25251/59. Class 74 (2). Two-by-two portions of rib fabric are produced on a cylinder and dial machine in string formation separated by draw courses 7, 8, the subsequently produced portion having a selvage including threads m, n forming first and second courses Z 1 , Z 2  knitted on selected needles. The knitted loops of the threads m, n are so formed that portions of each of the threads interengage to produce a run-proof selvage which is thereby produced without the racking of the dial needles relative to the cylinder needles. Specification 773,546 is referred to.
Patent GB-253128-A (GB)
Abstract: 253,128. Distilleries des Deux-SÞvres. June 4, 1925, [Conventoin date]. Alcoholic liquids, distilling. - In dehydrating alcohol as described in Specifications 211,454 and 243,368 by distillation in presence of a liquid which yields an azeotiopic mixture, provision is made to separate the higher-boiling impurities which remain in the alcohol. For this purpose, extra plates A<1> are added at the base of the rectifying column A. Dehydrated alcohol is withdrawn from the column by a pipe p. The remaining liquid passes by a pipe 32 to an auxiliary distilling column 33. vapours from which pass to a condenser 35. Part of the condensate returns by the pipe 36 to the top of the column 33 and part passes by a pipe 37 onto the plates A<1>. The products such as higher alcohols, acetal, aldo, croton aldehyde, furfurolic bases, amines, aldehydes, &c., are withdrawn by a pipe 38 or separately according to their boiling points by pipes 39, 40. An aqueous or alcoholic solution of caustic soda may be supplied by a pipe 30 to the column A, at a place below that at which the alcohol to be dehydrated is supplied by a pipe a. The alkali serves to neutralize acids and to saponify ethers. The salts pass away with the liquid from the base of the column.
Patent GB-1480679-A (GB)
Title: Tricyclic alkylamine derivatives and preparation thereof
IPC: C07D237/28
Filed: 1975-06-13
Abstract: 1480679 Amines derived from carbazole, cyclopent[b]indole and cycloehpt[b]indole AYERST MCKENNA & HARRISON Ltd 13 June 1975 [18 June 1974] 25315/75 Heading C2C The invention comprises compounds of formula and their pharmaceutically acceptable acid addition salts, wherein R<SP>1</SP> is C 1-6  alkyl; R<SP>2</SP> is H or C 1-6  alkyl; R<SP>3</SP> is H, halogen, C 1-6  alkyl, C 1-4  alkoxy, C 2-6  alkanoyloxy, OH, CF 3 , CCl 3  or CBr 3 ; R<SP>4</SP> is H or C 1-6  alkyl; R<SP>5</SP> and R<SP>6</SP> are each H or C 1-6  alkyl; m is 2-4; p is 0-2; and "C 1-6  alkyl" excludes C 5-6  branched-chain alkyl. In examples, these compounds are prepared by reducing an amide in which the terminal group is CONR<SP>5</SP>R<SP>6</SP> or CH 2 NR<SP>5</SP>CHO, or by hydrolysing the latter or the corresponding isocyanate (which is itself made from the azide). The amides are prepared by reacting the corresponding carboxylic compound, in the form of a mixed anhydride with EtOCO 2 H, with R<SP>5</SP>R<SP>6</SP>NH. Starting materials otherwise prepared are R<SP>3</SP>-substituted phenylhydrazines (A), the esters (B) of R<SP>2</SP>-substituted - -1-alkyl-2-oxocycloalkanealkanoic acids and the phenylhydrazones (c) from (A) and (B) (note also that the by-products may be formed when (C) is cyclized to give the above mentioned carboxylic compound, 6 being itself hydrolysable to the latter); cyclic ethylene ketals of (B) and of their analogues containing a 3,3 - diphenyl - 3 - hydroxypropyl group in place of the alkanoic ester chain; other analogues of (B) containing in place of said chain an allyl or diphenylallyl group; 2-ethyl-6- hydroxymethylenecyclohexanone, 6-butylthiomethylene - 2 - ethylcyclohexanone and 2- allyl - 6 - butylthiomethylene - 2 - ethylcyclohexanone; and 1 - methyl - 2 - oxycycloheptaneacetonitrile. Therapeutic compositions having anti-depressant activity comprise the above amines, and may be administered orally or parenterally.
Patent GB-532558-A (GB)
Title: A machine for perforating the shells of eggs preparatory to preservation or pickling
IPC: A23B5/12
Filed: 1939-09-07
Abstract: 532,558. Pickling eggs. THOMAS, G. T. Sept. 7, 1939, No. 25328. [Class 49] In a machine for perforating the shells of raw or boiled eggs as a preparatory operation to preservation or pickling, eggs from a shoot 5 are fed in succession to cups 12 upon a shaft 17 and are carried around the inside of a cushion-lined stationary race 3 having openings for punch points 10 upon members 7 which are reciprocated at intervals by mechanism operated by the shaft. The cups are mounted with play upon pins 14 in a central cross-head 16 on the shaft 17 which is formed in two halves overlapping at their inner ends. Each half carries a cam 21, 22 with recesses for the reception of rollers 8 upon the reciprocating members which are drawn inwards by springs 9 on bolts passing through lugs 6 at each side of the race 3. A guide-cage 18 with members between the cups is mounted upon the two halves of the shaft, and springs 19 are provided for aligning the cups. The shaft may be driven by a belt around a pulley 23 or by the hand-crank 24.
Patent GB-596793-A (GB)
Title: Improvements in or relating to thermostatically controlled valve apparatus
IPC: G05D23/02
Filed: 1944-12-18
Abstract: 596,793. Thermally-actuated valves. CORNER & CO., Ltd., G., BENNETT, T., and HURST, E. Dec. 18. 1944, No. 25350. [Class 135] A thermally-actuated valve for controlling the gas supply to, and thereby the temperature in, a cooker and having an externally adjustable pre-setting device connected to the ends of the thermostat extending into the valve casing includes a nut 12, Fig. 1, which coacts with a screw 11 carrying the low expansion element 9 of the thermostat the high expansion element of which is secured to the valve casing having a gas inlet 5 and an outlet 36. The nut is formed with a groove 13 which is engaged by ears on the short arm of a lever 25 pivoted at 23 to a bracket 26 on the casing, and with end slots 14 engaged by projections 15 formed on the inner end of the spindle 17 of an operating knob 22. The spindle is formed with a conical face 20 held by a spring 21 in gas-tight contact with a seat 19 in the casing. The other end of the lever 25 is secured by a lost motion pin- and-slot connection 27, 28 to a valve 30 which is held off its seat by a spring 37. A byepass valve 40 is provided to permit the flow of gas when the valve 30 is closed. In action, an increase in oven temperature above the predetermined value set by the extent of engagement between the nut 12 and the screw 11, causes element 9, through the lever, to move the valve 30 towards its seat to reduce the gas supply.
Patent GB-1200577-A (GB)
Title: Recovery of vanadium
Inventor: FERRERO FRANCESCO
IPC: C01G31/04
Filed: 1969-05-19
Abstract: 1,200,577. Recovering VOCl 3  from TiCI 4 . MONTECATINI EDISON S.p.A. 19 May, 1969 [20 May, 1968], No. 25354/69. Heading ClA. Vanadium is recovered from crude titanium tetrachloride by treatment with hydrogen sulphide to precipitate the vanadium compounds, passing a dry inert gas through the (separated) residual material to drive off the volatile substances, in particular titanium tetrachloride, passing an oxidizing gas through the residue to remove the vanadium compounds as the volatile oxychloride and rectifying the vanadium oxychloride containing product. The inert gas may be nitrogen, a carbon oxide, argon or helium and is preferably passed through the residual material at 150-180‹ C. The oxidizing gas may be oxygen, air or oxygen enriched air, and is passed through the residue at preferably 150-200‹ C. in sufficient quantity to contain from 1-2 parts by weight of O 2  to one part of vanadium in the residue. The oxidizing gas may be passed through an indirectly heated apparatus such as a screw evaporator, rotary furnace or a fluid bed reactor. The process may be performed batchwise, the same apparatus being used for the two gas-passing steps or may be continuous, two gas-passing apparatuses being used in series. The titanium tetrachloride containing vanadium oxychloride product, being the tail product of the final rectifying stage, may be recycled to the hydrogen sulphide passing stage. After the removal of the precipitate therefrom, the liquid titanium tetrachloride may be purified from silica tetrachloride by rectification.
Patent GB-1066175-A (GB)
Title: Improvements in or relating to closure devices for bottles
Inventor: SCOTT JOHN
IPC: B65D41/04
Filed: 1964-06-19
Abstract: 1,066,175. Caps for bottles. DANIEL MONTGOMERY & SON Ltd. June 17, 1965 [June 19, 1964], No. 25355/64. Heading B8T. A bottle closure device comprises a cap 1, on the inside of which is an annular socket 5 for receiving a spigot 7 of a flexible plastics sealing disc 6 having an annular flange 8, which may be convex, concave or cone-shaped, spaced from the top of the cap and engaging the rim of the bottle. A lip (10), Fig. 2 (not shown), is formed on the outer wall of the spigot 7 to ensure a tight fit of the spigot in the socket 5. When the cap 1, which may be of metal or of a rigid or semi-rigid plastics material, is screwed on to the bottle neck, the rim of the bottle abuts the flange 8 and compresses an annular projection 9 on the flange against the cap, thereby tightly sealing the bottle. The flange 8 is of varying thickness, the thickness being greatest at the spigot 7 and least at the periphery of the flange, and the sealing disc -6 may be formed by a moulding or vacuum forming operation. As a modification, instead of being screwed on to the bottle, the rim of the cap 1 may be bent in to engage an annular groove in the bottle neck.
Patent GB-662915-A (GB)
Title: Improvements in or relating to three-phase core structures for electrical induction apparatus
IPC: H01F41/02
Filed: 1949-10-04
Abstract: 662,915. Making transformer cores. WESTINGHOUSE ELECTRIC INTERNATIONAL CO. Oct. 4, 1949 [Nov. 26, 1948], No. 25453/49. Classes 83 (ii) and 83 (iv). [Also in Group XXXV] Angular bending.-A machine for cutting and bending strips of magnetic material to form a laminated core for a transformer comprises rollers 83 which advances the strip 81 between guides 82 and co-operating shears 84 until the end of the strip abuts stop 85, whereupon the shears are operated to cut the strip and a V-bender 86 forces the sheared strip into a V-block 87 to form a right angle 89 with the strip. The position of the stop, V-bender and V-block may be advanced automatically after each cutting and bending operation through mechanism 91, 92, the movement of the stop corresponding to two thicknesses of the strip and the V-bender and block corresponding to one thickness of the strip so that when the bent strips are stacked the ends of the strips lie in a plane at right-angles to the length of the strip.
Patent GB-1200049-A (GB)
Title: Fastener stud assembly
Inventor: DZUS THEODORE
IPC: F16B21/02
Filed: 1969-05-19
Abstract: 1,200,049. Stud and socket fastenings. DZUS FASTENER CO. Inc. 19 May, 1969, No. 25461/69. Heading E2B. [Also in Division F2] A stud fastener assembly comprises a headed shank 19, a tubular cup 12 with an opening at each end, one end being flared to engage the periphery of an opening in a supporting panel 10, a spring 23 surrounding the shank and abutting the head 17 of the stud at one end and a washer 21 surrounding the shank at the other end engageable by a rib 22 on the shank between the head and the washer. The stud is rotated to engage helical slots 20 therein with a rod in a receptacle to secure the receptacle to the panel.
Patent GB-445269-A (GB)
Title: Improvements in and relating to ceramic electric insulating materials
IPC: C04B35/18
Filed: 1934-09-04
Abstract: Electric insulating-material is made by firing a mixture of 80-95 per cent of a magnesium compound or compounds other than asbestos, and 5-20 per cent of bentonite or a mixture of clay and bentonite, with an alumina content not exceeding 7 per cent.  The magnesium compound or compounds may be partly replaced by another mineral or minerals but with the exclusion of felspar, e.g. quartz, zirconium oxide, zirconium earth, titanium oxide, rutile, cerium oxide, corundum, sillimanite, beryl, zinc oxide, baryta, limestone, bone ash and apatite.  Magnesium minerals specified are magnesite, talcum, forsterite, periclase and magnesium hydroxide.  It is stated that if the articles made will be subjected to considerable changes of temperature it is of advantage to prefire part of the mixture and then add it to the remainder in the form of coarse meal.  The Provisional Specification also refers to the use of brucite and nemalite as suitable magnesium compounds.
Patent GB-1324201-A (GB)
Title: Device for use in apparatus for taking up and discharging multiple  liquid doses
IPC: B01L3/02
Filed: 1971-04-19
Abstract: 1324201 Multiple pipette device OLLITUOTE OY 19 April 1971 [15 May 1970] 25485/ 71 Heading B1X Multiple liquid doses are taken up and subsequently discharged by a spaced array of pipette nozzles 10 connected to one another by permanently attached webs 14 to form a substantially rigid structure which can be fitted onto and detached from a corresponding array of spaced cylinder and piston syringes 12. The pipette nozzles take up and discharge liquid when the actuating means for the pistons is brought into operation. The nozzle structure may be made of moulded plastics material and, after use, may be discarded in its entirety.
Patent GB-775167-A (GB)
Title: Improvements in filters for oil and other liquids
IPC: B01D35/147
Filed: 1955-09-06
Abstract: 775,167. Oil filters. JAY, K. W. Sept. 6, 1955 [Sept. 7, 1954], No. 25524/55. Class 46. An oil, &c. filter removable from its oil line without draining the oil, &c. system comprises a filter core 15 supported by end pieces 13; 14 and surrounded by a casing 12 slidable over the end pieces each of which houses a self-closing valve 21, 35 held open by the core when in its operative position, one valve 21 opening the inlet passage 24 into the interior of the core. A chamber 20 in the end piece 13 houses the inlet valve 21 and its closing spring 22 and a radial flange 17 and skirt 18 enclose a spring 51 which urges the core against a boss 50 on the other valve 35, this valve having legs 36 passing through the end piece 14 and engaged by a flange on the outer casing 12 to hold the valve off its seat 39 against the action of a tension spring 37. A wing nut 27 clamps the end piece 14 to the casing 12. At its inlet end the core has a perforated plate 43 carrying a stem 44 adapted to engage the inlet valve and open it as the core is placed in position. Excessive pressure e.g. due to clogging of the filter opens a relief valve 49. In a modification, the two valves are similar, the skirt 18 is omitted and the core and casing are removable sideways from the oil line.
Patent GB-296902-A (GB)
Title: Centrifugal casting of hollow metal bodies
IPC: B22D13/10
Filed: 1927-09-28
Abstract: 296,902. Possenti, A., and Scorza, C. Sept. 28, 1927. Addiiion fo 277,996. Casting-machines; metalpouring.-Casting-machines as in the parent Specification have moulds each comprising two or more longitudinal elements assembled by collars and separable heads and being centred in the rotary frame by members independent of said mould. The mould may comprise two segments 17, Figs. 1 and 4, perforated at 46, connected by bands 36 and provided with heads 38, 39. The socket end has an enlarged shell 44 also in halves and connected by a band 45 which is removed after casting to allow shrinkage. The mould is held in the casing 22 by bolts 26 forced inwards by inclines on sleeves 24 screwed on the casing and locked by a brass block 34 and screw 33. The ladle has cross members 58, 59 to arrest dross and a notch 56 in its pouring lip so that, as it is rotated, metal to supply the socket is delivered before the whole extent of the lip overflows. The ladle is supported by uprights 54, 55 this being pivoted at 60 so that it can be swung out of the way when the ladle and mould are being inserted or withdrawn. During this process the mould is supported by rollers 49 thereon resting on flanges carried by the casing 22. In other modifications, the mould may be rotatably supported by one or more of the bands 36 being secured in a ball mounted ring 141, Fig. 13, the mould being rotated by gearing 142 or by an axially movable end clamp. In another modification, the bands 36 are engaged in integral rings 153, Fig. 17, each supported on pairs of driven rolls 154.
Patent GB-229977-A (GB)
Title: Improvements in the art of shearing metal bars while in motion
IPC: B23D33/02
Filed: 1924-10-28
Abstract: 229,977. White, A. E., (Morgan Constru ction Co.). Oct. 28, 1924. Combined fluid - actuated and mechanical gears.-The valve gear of a metal bar shearing machine comprises a main differential piston valve 30, Fig. 3, whose movements are controlled by a pilot valve 40, Fig. 5, mounted in a chest 35 secured to the part 27 of the main valve casing. Main steam is supplied at 28 and may pass to the cylinder 16 as controlled by the main valve either by way of ports 32 or 34, a throttle 70 which may be set by a hand lever 71, being fitted in the port 34 to control the speed of the piston and hence to determine the length of work cut off at each operation of the shears. The pilot valve is first actuated by the work to move the shears for the cutting stroke and is then automatically controlled by linkage from the shears to return the latter to the starting position. The work 5 on moving forward trips a trigger 51 and actuates a pawl engaging a ratchet-wheel on the pilot valve spindle, the pawl riding on a ledge on the valve chest so that whatever the movement of the trigger may be, the pilot valve turns through only 45‹. This movement connects the ports 37, Fig. 5, which open into the right hand end of the main valve casing, with atmospheric exhaust ports 36, so reducing the pressure accumulated in the casing-end by leakage through a bleedport 73 in the valve and allowing the steam pressure to move the valve to the right. Steam is thus admitted through the port 32 to the right hand and exhausted through the port 34 and pipe 29 from the left hand end of the cylinder, the piston thereupon moving inwards and performing the cutting stroke. During this movement, a bye-pass valve 61 actuated at a given adjustable point in the stroke by linkage 65, 68 from the shears cuts off the steam supply and admits steam from the right hand to the left hand end of the cylinder, this cushioning action being also assisted by a bleed-port 74 in the piston and by a recess 76 in the cylinder wall. Meanwhile, a second ratchet wheel on the pilot valve spindle is similarly rotated through 45‹ by linkage 58, 60, 68 whereby the atmospheric exhaust ports 36 are shut, the accumulation of pressure in the right hand end of the main valve casing causing the valve to move to the left. This movement uncovers the port 34 and, owing to the difference in the effective areas of the two sides of the piston 15, the entering steam causes the latter to perform its outstroke to return the shears to the starting position.
Patent GB-1093388-A (GB)
Title: Improvements relating to moulds for shell cores and/or shell moulds
IPC: B22C15/24
Filed: 1965-06-17
Abstract: 1,093,388. Moulding machines. CRONING & CO. June 17, 1965 [July 25, 1964]. No. 25704/65. Heading B3F. A machine for moulding shell moulds and cores, comprises a displaceable mould part carrier I and a fixed mould part carrier 2, mounted on a common horizontal axis. The carrier 1 is movable towards and away from the fixed carrier by fluid means 4 to effect opening and closing of the mould. When the mould parts are in the closed position they are held in abutment by a toggle mechanism 6 actuated by fluid means 9. Each mould part carrier which includes a heater plate (13), Figs. 3 and 4 (not shown) is mounted in a bearing block 5 and is rotatable therein about the common horizontal axis. In operation, the mould parts are closed and granular mould material is blown or sprayed by known means mould to form the shell or core. During the blowing and setting operations the mould carriers are held against rotation by locking pins 19 located in the respective bearing blocks. When the working operation has been completed the locking pins 19 are removed and the mould and carriers are rocked about the horizontal axis to remove any surplus moulding material. The rocking may be effected manually or by mechanical means. Means 14 are provided for ejecting the finished mould or core. The machine may include more than two mould part carriers.
Patent GB-502424-A (GB)
Title: Improvements in or relating to signalling, advertising and like devices
IPC: G09F9/37
Filed: 1937-09-23
Abstract: 502,424. Monogrammic signs. SOC. D'APPAREILS LUMINEUX ANNONCIATEURS & SIGNALISATEURS, and BOSCHE, A. E. J. Sept. 23, 1937, No. 25847. [Class 118 (ii)] In signalling, advertising, and like devices in which a plurality of relatively movable perforated plates are arranged in pack form and co-operate with a stationary plate or plates and a luminous source to give selected indications which depend upon the relative positions of the plates, the plates are lifted by individual electromagnets operated from remote control. The core 11 of each electromagnet 10 has a projection 12 which engages an eye 13 in the top of each plate 7, a spring 16 bearing on the projection 12 to force the plate down on to a ledge 15 when current is out off. Two bails 24 on shafts 23 normally press on the pack of plates, to keep them in position, under the influence of springs 25. Cores 18, 19 are retracted by a solenoid 17 to turn the shafts 23 and release the pack prior to movement of one or more plates 7, the solenoid being in series with the electromagnets 10. A plurality of the devices may be arranged side-by-side, each being connected to a relay which leads the current to the required devices in succession. Specification 370,728, [Group XVIII], is referred to.
Patent GB-349862-A (GB)
Title: Improvements in sectional type retreading moulds
IPC: B29C35/00
Filed: 1930-09-01
Abstract: 349,862. Vulcanizing tyres. TAYLOR, H., 407, Old South Head Road, Bondi, near Sydney, Australia. Sept. 1, 1930, No. 26020. Convention date, Sept. 2, 1929. [Class 70.] A sectional tyre - retreading mould is provided with heatradiating fins 16, 17 at one or both ends to prevent overcuring at the overlap. The fins may be removable.