baber/WOPTO huggingface dataset:
Patent GB-886982-A (GB)
Title: Acetylenic acetal polymer and method for preparing the same
IPC: C08G4/00
Filed: 1959-10-21
Abstract: An acetylenic acetal polymer is prepared by reacting, in the presence of a strongly acid catalyst, an acetylenic glycol having 4-6 carbon atoms or a mixture of such glycols and from 1,00 to 1,12 molar equivalents, based upon the quantity of glycol, of an aldehyde having up to 8 carbon atoms or a mixture of such aldehydes.  The reaction may be carried out in bulk or in a solvent, e.g. benzene, chlorobenzene, cyclohexane, ethylene dibromide or toluene. Exemplified catalysts are p-toluene sulphonic acid, sulphuric acid, hydrochloric acid and ferric chloride.  Good solvents for the polymers are ethylene dibromide, ethylene dichloride and methylene dichloride, and the polymer may be purified using these solvents.  A weakly basic ion-exchange resin, e.g. a cross-linked polystyrene containing amine nitrogen atoms attached to the benzene rings, may complete the removal of the acid catalyst from the polymer.  In the examples, viscous liquid or waxy solid polymers are obtained from (1) 2-butyne-1, 4-diol and paraformaldehyde, (2) 2,4-hexadiyne-1,6-diol and paraformaldehyde, (3) 2-butyne-1,4-diol and 2-ethylbutyraldehyde and (4) 2-butyne-1,4-diol, 2,4-hexadiyne-1,6-diol and paraformaldehyde.
Patent GB-1347959-A (GB)
Title: Apparatus for parking vehicles
IPC: E04H6/06
Filed: 1972-08-01
Abstract: 1347959 Mechanical garage K KLAUS 1 Aug 1972 [7 Aug 1971] 35769/72 Heading B8E A garage accommodated in a cavity 16 comprises load platforms 5, 6, 15 connected by movable guide members 4 and a cross member 7 to form a rigid structure raisable by a piston cylinder device 12 and guided by fixed guides 1 which extend to or just above a drive-on 3. The actuating mechanism may be adjacent or within the guide members which are telescopic so that with the vehicles on the platforms they may be lowered into the cavity 16 so as to leave little or no projection. A roof may be provided over the top platform 6 to move with it and to act as an anti-theft device or the platforms may be left unaligned with the drive-on 3. Rollers may be provided on the interengaging guides which may be placed centrally of the platforms with the movable guides surrounding the fixed guides and square, circular or cruciform in crosssection.
Patent GB-155753-A (GB)
Title: Improved means for drying wood, and other material
IPC: F26B21/08
Filed: 1920-12-21
Abstract: 155,753. Vanlaethem, E. Dec. 15, 1916, [Convention date]. Air and gases, controlling temperature, humidity, and direction of flow of.-Wood and other material is dried by furnace or like gases which have been deprived of soot in a, depositing chamber and mixed with steam or cold air, means being provided for admitting the steam either simultaneously with or subsequently to the separation of the soot. As shown, the fan d draws the gases from the chimney a over the tubes f, which are arranged quincuncially within the chamber, and forces them into the drying space, the soot falling into the pan i. Cold air may be drawn through the openings k into the chamber and through the tubes and steam supplied through the pipe o. The proportion of air or steam mixed with the gases is controlled by a damper having an index outside the chamber. Thermometers and hydrometers may be placed at the entrance to the drying space, and the gases may be humidified by passing them through or over water instead of mixing with steam.
Patent GB-978843-A (GB)
Title: End assemblies for bedsteads
Inventor: HOSKINS HERBERT RONALD
IPC: A47C19/02
Filed: 1962-09-20
Abstract: 978,843. Bedsteads. HOSKINS & SEWELL Ltd. Sept. 17, 1963 [Sept. 20, 1962], No. 35802/62. Heading A4J. An end assembly for a bedstead comprises a supporting frame 10 which is adapted to be telescopically connected to the mattress frame 20 of a bedstead, a foot board 14 which is pivotally connected to the frame 10, means such as a pair of channel-shaped clips 16 for retaining the foot board 14 in a vertical position and means such as a pair of links 18, 19 for retaining the foot board either in a horizontal position on the side of the frame 10 remote from the mattress frame (Fig. 2) or adjacent the mattress frame (Fig. 3). The supporting frame 10 comprises a pair of side members 11 and a cross-member 12 to which the foot board 14 is pivotally connected by means of hinge members 15. The supporting frame 10 has a pair of attachment tubes 13 provided with longitudinally spaced holes 13a so that the frame may be retained in adjusted position in longitudinal side members 20 of the mattress frame by means of pegs 21 extending through holes in members 20 and through holes 13a in tubes 13. In a modification shown in Fig. 4 a pair of pegs 23 are secured to the cross-member 12 to project through slots 15a in the hinge members 15 and retain the footboard 14 in both its horizontal positions. The supporting frame shown in Fig. 4 is formed in two parts. One part comprises the cross-member 12 and the side members 11, the lower ends 11a of which fit into a pair of sockets 24 of the other part which also comprises the attachment tubes 13 and a member 25 joining the sockets.
Patent GB-508305-A (GB)
Title: Process for the manufacture of pregnendione
IPC: C07J75/00
Filed: 1937-12-24
Abstract: 508,305. Sex hormones. SCHERING AKT.-GES. Dec. 24, 1937, No. 35826. Convention date, Dec. 31, 1936. Addition to 446,189. [Class 2 (iii)] The process of the parent Specification for the production of pregnendions by the oxidation of pregnenolones is modified in that as starting material there is used iso-pregnenolone. The product obtained is pregnendione of the formula C21H30O2 which is. the corpus luteum hormone. The oxidation is preferably carried out with intermediate protection of the nuclear double bond by a halgen such as bromine, or a halogen hydride such as hydrochloric acid. In the latter case the removal of the halogen hydride after the oxidation can be effected by pyridine bases, alkali acetates in alcohol solution or other alkaline-acting agents. In the former case, the halogen can be removed by zinc dust in acid or neutral solution, by treatment with sodium iodide in acetone accord - ing to the method of Finkelstein, careful' hydrogenation in the presence of catalysts such as platinum or nickel, or basic reagents. The preferred oxidizing, agents are , chromium trioxide, chromium oxychloride, and dichromates in acid solution, but there may also be employed alkali and alkaline earth permanganates, or in fact any agent which will convert a hydroxy group into a keto group without any essential splitting of the ring system. In particular, there is referred to the exchange of oxidation stages between secondary alcohols and oxo compounds in the presence of metal alcoholates which is referred to in Specification 500,186. The diketone formed by the process, of the invention may be separated' and purified by distillation in high vacuum, or by the use of ketone reagents. Suitable reagents for this purpose which are mentioned include semicarbazide, thiosemicarbazide, phenylhydrazine and substituted phenylhydrazines , and hydroxylamine. In an example, iso-pregnenolone obtained by the isomerization of pregnenolone with methyl alcoholic potash is oxidized at room temperature with chromium trioxide, with intermediate protection of the nuclear double bond by bromine. The bromine is removed after the oxidation by zinc dust in glacial acetic acid, and the progesterone isolated by ether extraction.
Patent GB-846446-A (GB)
Title: Explosively actuated driving tool
IPC: B25C1/14
Filed: 1958-03-19
Abstract: 846,446. Explosively actuated tool for firing nails. MINE SAFETY APPLIANCES CO. March 19, 1958 [April 9, 1957], No. 35946/59. Divided out of 846,447. Class 119. An explosively actuated tool has a stock 2 with a projecting tube 3 in which slides an axially bored breech block 6, urged forward by a spring 24 and operatively connected with a barrel 50 emerging from the front of the tube 3; the stock being movable forwards towards the breech block against the spring when the barrel is pressed against a work-surface. The stock has an opening for a support 17 for a firing pin 14 which for safety is normally held retracted from its passage 11 through the breech block. A pivoted lever 26, operated when a grip on the stock is squeezed, moves the pin 14 forward into the passage 11 so that it will fire a cartridge when the stock is pressed forward. The subject-matter of this Specification is identical with that of Specification 846,447 from which it was divided, but the claims differ. Specification 846,445 also is referred to.
Patent GB-752550-A (GB)
Title: Improvements in or relating to the removal of contaminant from titanium metal
Inventor: LEE ROBERT PHILIP
IPC: C01G23/02
Filed: 1954-12-13
Abstract: Impure Ti is treated to remove contaminants and to render the metal amenable to are melting by leaching with an acidic solution containing 10-20 per cent of a nitrate compound on an NO3 basis, or containing 10-70 per cent of nitric acid, or containing an organic ferric compound.
Patent GB-1445026-A (GB)
Title: Process and apparatus for the manufacture of a fibrous sheet
IPC: D04H1/655
Filed: 1974-08-15
Abstract: 1445026 Laminates TOMOKU KK 15 Aug 1974 [18 Aug 1973] 36061/74 Heading B5N [Also in Division Dl] Fibres, e.g. of wood pulp or waste paper are air laid to form a continuous substantially uniform thickness layer a which is sprayed with adhesive and laminated to one or two sheets b by passing the layers around a heated apertured drum 30. Sheet b may be paper or cloth. Preferably drum 30 has a 1-2 mm. sheath 31 bearing an array of circular apertures 32. The laminate is thus hot embossed. The material pushed into the recesses by rolls 33 forms projections 38 which are less dense than the remainder of the laminate.
Patent GB-1500294-A (GB)
Title: Interconnection of structural elements
IPC: E04H17/16
Filed: 1976-08-31
Abstract: 1500294 Guard rail; structural connection ALCAN BOOTH INDUSTRIES Ltd 31 Aug 1976 [3 Sept 1975] 36345/75 Heading F2M [Also in Division E1] A guard rail structure comprises two rails 28, 29 and posts 31 connected to each rail through apertures, the rail having an internal channel defined by flanges 32, opposite sides of which are engaged by the sides of the posts, at least one side of each post having a notch 34 which is aligned with a groove 33 in the channel, a locking pin or rod 35 extending along the groove and engaging the notches in the posts. End posts 30 are identical to the rails 28, 29 and are attached by corner cleats 36. The metal of the rail and post may be crimped into the grooves 36.
Patent GB-319548-A (GB)
Title: Improvements in and relating to the preparation of nitric acid by the catalytic combustion of ammonia with oxygen or gases rich in oxygen
IPC: C01B21/26
Filed: 1928-12-11
Abstract: 319,548. Cederberg, I. W. Dec. 11. 1928. Nitric acid from ammonia, catalytic production of.-In the production of concentrated nitric acid bv the catalytic oxidation of ammonia, the reaction mixture directly after leaving the contact zone is passed through a layer of cooling liquid. The latter may consist of water or nitric acid, which is continuously recirculated through a cooler. Part of the oxides of nitrogen is absorbed by the liquid in the cooling zone, and the remainder may be recovered by treatment with the same liquid in an absorption tower. The catalyst may consist of one or more layers of platinum gauze on the upper one of which the cooling liquid is supported. The reaction mixture is fed to the contact zone through a system of capillary tubes.
Patent GB-1068470-A (GB)
Title: Calendar mechanism for a watch
IPC: G04B19/253
Filed: 1965-08-25
Abstract: 1,068,470. Calendar watches. UNITED STATES TIME CORPORATION. Aug. 25, 1965 [Aug. 25, 1964], No. 36577/65. Heading G3T. A calendar watch comprises a date ring 25 having the figures 1 to 31 printed therearound and at least one printed mark 26 or 70 in each gap between the figures to indicate am. or pm., and only one figure being exposed through a window 22 in the watch dial 20. The date ring 25 has inner circumferential teeth by which it is advanced clockwise at noon and at midnight by a toothed lever 35 controlled by a cam 30 driven from the wheels of the watch. At noon the cam 30 permits the lever 35 to be moved clockwise by a spring 55 so that a lever tooth 47 engages a tooth 68 of the date ring 25 to rotate the ring until the lever 35 is halted by a stop 49. The same date remains visible in the window 22 but the mark 26 indicating am. disappears beneath the dial 20 and a mark 70 indicating pm. appears. At midnight a similar actuation of the lever 35 occurs except that the vent tooth 69 of the date ring 25 is engaged between teeth 46, 47 of the lever 35 whereby the ring 25 is rotated to expose the next date figure together with a mark indicating am.
Patent GB-861061-A (GB)
Title: Improvements in or relating to the manufacture of embossed sheet material
IPC: B44C1/24
Filed: 1957-11-25
Abstract: 861,061. Laminating. HORNSCHUCH A.G., K. Nov. 25,1957 [Aug. 1, 1957], No. 36654/57. Class 140. [Also in Groups V and XVI]  A method of producing a unified composite sheet of embossed plastic material comprising a base sheet having parallel strips of material applied thereto, the embossing of the applied strips differing from that of the base sheet, consists in cutting the strips to the required width, fixing them to the base sheet and conveying the base and strips to an embossing roller, the strips passing under sections of the roller which emboss the strips with a pattern different from that embossed on the exposed parts of the base sheet. A web 1 of plastic material passes over a heated roller 2 to make it slightly adhesive and then between two pressure-rollers 3, 4. A web of differently coloured plastic material 5 is held in contact with the roller 3 by rollers 6, 7, 8 and is cut into strips of the required width by circular knives 9 which rotate in engagement with the roller 3. The strips are then fed between the roller 3 and the web 1 and thereby made to stick to the latter, while the unwanted portions 13 of the web 5 are led away round the roller 8. The web 1 and strips adhering thereto then pass under an infra-red heater 10 which brings them to a suitable temperature for the embossing operation which is effected by an embossing roller 11 and an impression roller 12, the pressure exerted between the two rollers 11, 12 permanently uniting the web and the strips.
Patent GB-339109-A (GB)
Title: Improvements in apparatus for production of commode seat covers and the like
IPC: B31D1/00
Filed: 1929-11-29
Abstract: 339,109. Young, T. L. Nov. 29, 1929. Seat - guards. - In a machine for making a closet reat covers preferably from crepe or tissue paper, the paper passes from an adjustably mounted d and frictionally braked supply roll between pairs of rollers 7, 8, Fig. 2, and 12, 13 to a winding spool 37. The roller 7 carries printing type 17 co-operating with a platen on the roller 8, and the roller 8 has a serrated knife 28 co-operating with a blunttoothed knife on the roller 7 to form lines of perforations A, Fig. 4. The type is inked by rollers 20, 21 supplied by intermediate rollers from an intermittently rotated roller 25. The rollers 12, 13 carry male and female dies to make curved cuts 34, 35. The rollers 7, 8, 12, 13 are geared together and to a main shaft, and the spool 37 is also driven from the shaft by gearing including a frictional connection. A counting device and means for stopping the machine when a predetermined amount has been wound on the spool 37 are provided.
Patent GB-1527612-A (GB)
Title: Method and an apparatus for reducing noise when blowing-out tubes
IPC: C23C2/38
Filed: 1975-09-05
Abstract: 1527612 Blowing residues from zinc-coated tubes MANNESMANNROHREN-WERKE AG 5 Sept 1975 [17 Sept 1974] 36711/75 Heading C7F A tube 7 is drawn from a zinc-coating bath (not shown) and advanced on magnetic rollers 6 until its leading end engages a nozzle 4, whereupon steam is blown through the tube to remove zinc residues, the steam-zinc moisture emitting from the tube passing through the nozzle 4, which is mounted in a sound deadening housing 3, an expansion casing 2, where relatively large zinc particles are collected, and a filter 1 for collecting relatively lighter zinc particles. The housing 3 is axially movable by means 8. The nozzle 4, which is heated by an annular burner 5, is formed with a circular array of axially-extending heating bores, Fig. 2 (not shown). The internal diameter of the tube 7 is the same as the diameter of the main bore through the nozzle 4. The nozzle may be removable from housing 3 for replacement by another nozzle. Air is drawn into the housing 3 as shown by arrows. The temperature of the nozzle is maintained at about 420C.
Patent GB-929711-A (GB)
Title: Improvements in photoelectric measuring instruments
IPC: H02P7/347
Filed: 1959-10-29
Abstract: 929,711. Automatic speed control. M. C. PFISTER. Oct. 29, 1959 [Nov. 27, 1958], No. 36720/59. Class 38 (4). [Also in Groups XXII, XXIII, XL (b) and XL (c)] A steel billet on a conveyer is brought to rest in a predetermined position by a photo-electric device which measures the distance of the billet from the position and adjusts accordingly the reference voltage of a Ward-Leonard unit controlling the conveyer speed. Devices 44 and 45 derive signals indicative of the billet position and the predetermined position, and the difference therebetween drives a servomotor 53 coupled to the tapping of potentiometer 51. The voltage tapped off is indicative of the desired speed for the existing billet position and the difference between it and the voltage of a tachometer 50 coupled to the conveyer motor 49 drives a servomotor 52. Servomotor 52 varies the excitation of a generator 48 supplying the motor 49. The billet is thus reduced to rest gradually as it approaches the predetermined position.
Patent GB-1008141-A (GB)
Title: Vehicle direction indicator switches
Inventor: SLATER CYRIL WILLIAM
IPC: B60Q1/42
Filed: 1961-10-13
Abstract: 1,008,141. Road traffic signals on vehicles. JOSEPH LUCAS (INDUSTRIES) Ltd. Jan. 9, 1963 [Oct. 13, 1961], No. 36768/61. Heading G4Q. [Also in Division H2] A direction indicator switch comprises a slider 17 movable under the action of a member 14 which engages with inclined surfaces 19 on the slider 17 and a forked member 21 pivotally mounted on the slider. When the operating lever of the switch is moved to one or other of its operative positions, the member 14 urges the slider 17 towards the steering column 33 against the action of the spring 18 into a position in which a part of the forked member 21 is moved into the path of a projection 23 on the steering column. Rotation of the steering column to negotiate an indicated turn causes. the projection 23 to move the forked member angularly, but will have no effect on the setting of the switch operating lever, but when the column is moved in the opposite direction, the forked member will be moved into engagement with a projection 20 on the member 14 to reset the switch operating lever. The switch operating lever is retained in its operative position by spring-loaded balls in the switch housing, Fig. 2 (not shown).
Patent GB-1470597-A (GB)
Title: Reciprocating pumps for dispensing pastes liquids and other substances
IPC: F04B7/04
Filed: 1974-08-21
Abstract: 1470597 Manually operated reciprocating pumps STERLING-WINTHROP GROUP Ltd 21 Aug 1975 [21 Aug 1974] 36836/74 Heading F1A A reciprocating pump for dispensing pastes and liquids, e.g. soap, comprises a piston 6 manually movable in a cylinder 4 against the action of a spring 10, the piston 6 being provided with a reduced diameter and 15 on which slides a sleeve valve 16 for controlling the filling and emptying of a working chamber 29. In the position shown fluent material in a storage container 1 enters the working chamber 29 through an orifice 22 in the cylinder 4 and an inlet port 28 in the piston 6. On depression of a head 8 the piston 6 moves while the sleeve 16 remains stationary due to the friction between a seal 18 and the cylinder 4. Fluent material is therefore forced back into the container 1 until the inlet port 28 is closed and an outlet port 32 is opened. At this point a shoulder 26 on the piston engages the end 17 of the sleeve 16 and the piston 6 and sleeve 16 move together, thereby expelling the contents of the chamber 29 through an outlet passage 34, 36. During the initial part of the return stroke under the action of the spring 10, material is sucked back through the passage 36, 34 until the outlet port 32 is closed. A retainer 20 engages the sleeve during the remainder of the return stroke. A screw (not shown) through the end of the cylinder 4 or a screw 12 co-operating with a sloping surface 14 is adjustable to alter the stroke.
Patent GB-1130188-A (GB)
Title: Process for manufacture of 4-tertiary butylcatechol
IPC: C07C37/02
Filed: 1967-08-10
Abstract: 1,130,188. 4-tert.-Butylcatechol. DIC CHEMICAL Inc. TO Aug., 1967 [12 Aug., 1966], No. 36861/67. Heading C2C. 4 - tert. - Butylcatechol is prepared by heating 2 - chloro - 4 - tert. - butylphenol (I) to 190-260‹ C. at 10-30 atm. in presence of a divalent base capable of forming a salt with catechol, a source of Cu ions, a caustic alkali and water; I may be made by chlorinating 4- tent.-butylphenol.