baber/WOPTO huggingface dataset:
Patent GB-1009798-A (GB)
Title: Siloxanes
IPC: C08G77/00
Filed: 1964-08-04
Abstract: The invention comprises siloxanes of the formulae <FORM:1009798/C3/1> and <FORM:1009798/C3/2> wherein X is H, Cl, OH or OR1 (R1=alkyl of 1 to 4 C atoms), R is methyl or phenyl, n is an integer of at least 1 and m is an integer of at least 2.  Siloxanes (1) can be made, e.g. by cohydrolysing [(CH3)3SiO]2Si(OCH3)2 and H(CH3)2SiOCH3 or (C6H5)(CH3)HSiOCH3 and then co-condensing the hydrolysates, or preferably by reacting [(CH3)3SiO]4Si with (C6H5)(CH3)HSiCl or [(CH3)2HSi]2O in the presence of a catalyst, e.g. FeCl3 or a sulphonic acid ion-exchange resin. Siloxanes (2) can be made, e.g. by cohydrolysing (CH3)3SiOCH3 and [H(CH3)2SiO]2Si(OCH3)2 or [(C6H5)(CH3)HSiO]2 Si(OCH3)2 and then co-condensing the hydrolysates. These H-containing siloxanes may be chlorinated to yield the corresponding chlorine-containing siloxanes which in turn can be converted to the hydroxy- or alkoxy-containing siloxanes by hydrolysis or alcoholysis.  Examples are given.  Uses.-as "fluid springs," hydraulic fluids and lubricants.
Patent GB-365091-A (GB)
Title: Improvements in or relating to the formation of printing blocks
IPC: B41M9/04
Filed: 1930-10-15
Abstract: 365,091. Photo-mechanical printing- surfaces. LUDVIGSEN, N., 2, Rue Louvois, Paris. Oct. 15, 1930, No. 30783. Convention date, May 2. [Class 98 (ii).] To obtain a process block with an etched "make-ready," and having as many different thicknesses as there are tones to be reproduced, a normally screened image resist is produced on the printing surface of the block, and on the rear surface of the block itself (or on a separate make-ready plate for use back to back therewith), a corresponding etching resist image in which the screen is non-existent in the high lights and weakened in the half-tones. The block (or both the block and the " make-ready ") is then etched sufficiently to etch normally the printing surface having the normally screened etching resist. The image used for the " makeready " is what is obtained by over-etching a plate with normally screened image resist to the point of undercutting the small dots in the high lights. This image or an ink impression from a plate thus over-etched may be used for the etching resist of the " make-ready." Alternatively this etching resist may be made by intensifying a normally screened negative (which is used for the etching resist of the printing surface) until the light zones disappear and the opacity and volume of the screen in the half-tones is weakened. This intensified negative is used to obtain the etching resist image for the " make-ready." The Figure illustrates the normally etched printing surface ml and the " make-ready " m<2> having no etching in the dark parts g and variable depths of etching in the half-tones f and high lights e.
Patent GB-1432021-A (GB)
Title: Fluid pervious conduit
IPC: E02B11/00
Filed: 1973-06-28
Abstract: 1432021 Irrigation conduits TAKATA KOJYO CO Ltd 28 June 1973 [30 June 1972 20 Nov 1972] 30791/73 Heading A1B [Also in Divisions B1 and F2] A conduit (e.g. for use in soil irrigation, aeration or fertillisation or in ground water drainage) comprises a flexible fluid pervious tube adhesively bonded to, and supported internally or externally by, a helical coil or two telescopic helical coils of opposite hand, the coil(s) having longitudinally spaced convolutions. The tube may be formed from polyvinylohloride, nylon, polyester and/or glass fibres; the coil(s) from acrylonitrile-butadienestyrene copolymer or resin coated metal wire. As shown the tube comprises warps 13 and wefts 14 of a cloth supported by coil 1, the warps, wefts and coil being enclosed in a synthetic resin. The conduit may have an imperforate coating (21, Fig. 6, not shown) around part of its periphery.
Patent GB-1072940-A (GB)
Title: Device for producing miniature openings in thin components
IPC: B23H1/00
Filed: 1965-07-20
Abstract: 1,072,940. Electroerosion. VUMA, VYSKUMNY USTAV MECHANIZACIE A AUTOMATIZACIE. July 20, 1965 [Aug. 31, 1964], No. 30827/65. Heading B3V. Electroerosion apparatus, for forming rows of small apertures in a foil workpiece includes a vibrating electrode 13 which is reciprocated vertically in a frame 1, and a workpiece holder 24 which is indexable along an inclined bed so that the workpiece progressively approaches the electrode during working, in order to compensate for electrode wear. A vibrator 7, an armature 8, and a holder 9 supporting the electrode are all housed within a generally cylindrical head which runs in roller tracks (6), Fig. 2 (not shown), within the frame 1. The head is moved under the action of a motor driven cam (35) coacting with a roller (36) on the top of the head, a spring (37) biasing the roller into engagement with the cam. The workpiece is indexed after each machining movement of the electrode. The electrode 13 which is of the multi-point kind is adjustable in the holder 9 in two perpendicular directions by screws 40. A foil workpiece (15), Fig. 2, is clamped to fixed and movable spring loaded jaws (17) and (18) of the holder (24) by levers (20), operated by means of camming levers (22). A cam 30 rotatable on the same shaft as the cam (35) operates a push rod 29 and catch 28 to move the holder 24 to the right by one notch after each machining step.
Patent GB-1378604-A (GB)
Title: Axial flow compressors
IPC: F01D17/16
Filed: 1973-06-28
Abstract: 1378604 Axial-flow compressors BROWN BOVERI-SULZER TURBOMACHINERY Ltd 28 June 1973 [13 July 1972] 30845/73 Heading F1C In an axial-flow compressor having an adjusting cylinder 1, Fig. 1, mounted in the compressor casing 3 for axial movement to adjust the stator blades, at least two linear servomotors 5 located outside the casing have drive rods 7 which are connected to the adjusting cylinder by connecting rods 14, Figs. 1 and 2, having universal joints 15  at each end, the drive rods 7 passing through seals 12 which seal the casing interior from atmosphere. A self-lubricating bearing 24 is provided between the seals. The cylinder 1 is carried by rods 2 sliding in support blocks 4 and has brackets 13 for connection to the connecting rods 14. To permit the connection between each rod 7 and its connecting rod 14 to be located near a bearing 23, the portion 20 sliding in the seals 12 and bearing 24 is hollow. The servomotors 5 are controlled in dependence on, e.g. the required compressor delivery rate, follow-up action being provided by a cam 8 and follower 9 acting on a spool valve 10.
Patent GB-360618-A (GB)
Title: Improvements in and apparatus for the manufacture and production of mixtures of nitrogen and hydrogen from bituminous fuels
IPC: C01B3/02
Filed: 1930-10-15
Abstract: <PICT:0360618/III/1> A mixture of hydrogen and nitrogen in proportions suitable for the synthesis of ammonia is obtained by a process the first step of which is subjecting bituminous fuel successively to low-temperature carbonization and to gasification, by blowing steam and air through the fuel in superposed layers with sufficient force to keep it in vigorous motion, and using the hot gases thus obtained to effect the low-temperature carbonization. The mixture of gases is then passed through a condenser, and the residual gases are subjected to incomplete combustion with air or oxygen to convert the hydrocarbons into carbon monoxide.  The latter is then treated with steam in the presence of catalysts as described in Specification 27955/12, [Class 1 (i), Chemical processes &c.], for conversion into carbon dioxide which is removed from the gases.  At least one of the steps is effected by means of a gas containing nitrogen so as to obtain the required proportion of this gas. Suitable apparatus comprises a shaft A having grates R<1> . . R<5> supplied with coal from a bunker F, air enriched with oxygen and steam being supplied through a conduit E.  The gas mixture is freed from dust in the upper part S of the shaft and is passed through a condenser B. The hydrocarbons are converted into carbon monoxide in a combustion chamber D supplied with a mixture of oxygen and nitrogen through an inlet P, and the hot gases are passed through a heat exchanger C to preheat the gases entering the combustion chamber. The cooled mixed gases from the outlet O are then freed from carbon monoxide, leaving the mixture of hydrogen and nitrogen. Specification 343,435, [Group XII], also is referred to.
Patent GB-311787-A (GB)
Title: Improvements in or relating to the generation of steam or other vapour under pressure and to the storage of heat energy
IPC: F01K1/00
Filed: 1927-11-17
Abstract: 311,787. Shishkoff, P. Nov. 17,1927. Vertical boilers.-A heat accumulator and steam or other vapour generator consists of a long vertical heatinsulated chamber A containing water or other liquid heated by combustion or other hot gases passing through flue tubes F, which are of such a length as to create a natural draught of at least “ in. water gauge. The flue tubes extend from a combustion chamber C burning powdered, liquid, or gaseous fuel to an outlet G controlled by a damper H. The chamber is partly or wholly embedded in the ground. When the temperature and pressure in the chamber have been raised to the desired limit, its lower end is closed by a door D, and if water is used in the accumulator, the stored energy is drawn off as steam through a pipe K. The accumulator may be used in connection with the apparatus described in Specifications 260,094 and 266,621.
Patent GB-807407-A (GB)
Title: Surgical apparatus
Inventor: MUSGROVE JOHN BENNETT HUGH
IPC: A61G13/12
Filed: 1955-10-31
Abstract: 807,407. Supporting surgical apparatus. BRITISH OXYGEN CO. Ltd. Oct. 31, 1956 [Oct. 31, 1955], No. 31128/55. Class 81 (2). A support for a gag comprises an upstanding arm having a transversely extending upper portion for receiving the gag, means for securing the arm to an operating table and a ratchet mechanism which permits upward movement of the arm so that upward tension can be applied to the gag. The upstanding arm 1 has a lower solid portion 2 formed with ratchet teeth 4 and an upper hollow portion bent at its upper end to form a transverse portion 3. The hollow portion of the arm 1 has nipples 7, 8 for the supply and delivery of an anaesthetic gas. The transverse portion 3 is plugged and has a ribbed portion 9 of insulating material over which a gag may be hooked or looped. The lower portion 2 of the arm 1 is vertically adjustable in a sleeve 6 which carries a manually releasable spring-loaded pawl 5 for engagement with the ratchet teeth 4. A pin 11, which is attached to the sleeve 6 by a supporting arm 10, is secured by a screw 16 in a bore 15 of a clamp (Fig. 2) secured to an operating table.
Patent GB-967285-A (GB)
Title: Improved glove turning machine
Inventor: PARKINSON HAROLD
IPC: A41D19/04
Filed: 1962-08-15
Abstract: 967, 285. Turning inside out PLASTIFLEX PRODUCTS Ltd. Aug. 2, 1963 [Aug. 15, 1962], No. 31238/62. Heading D1X. In a machine for turning each finger and thumb of a glove as a separate operation by the insertion of a plunger into a tube after the finger or thumb has been placed over the latter, the plunger is moved relative to the tube by pneumatic or hydraulic means. As shown, a tube 3, formed by hollowing out a rod 4, is secured to a post 2 rising from a bed 1. A plunger 6, formed with a head 7, is secured to a rod 9 carrying the piston 10 of a pneumatic cylinder 11 supported by a frame 12 mounted on base 1. A plate 8, secured to rod 9, is connected to a plate 16 by rods 15 slidable in apertures 14 in frame 12. A screw-threaded rod 19, fixed to frame 12, passes through an aperture 20 in plate 16 and carries stop nuts 17 and 18 disposed on opposite sides of the latter. Compressed air admitted through a port 21 moves plunger 6 towards tube 3, the movement being terminated by the engagement of nut 18 with plate 16. Plunger 6 is also retracted by admitting compressed air through port 22, the position of nut 17 then determining the end of the movement. It is stated that hydraulic pressure could alternatively be used, and that the return stroke of the plunger could be effected by spring pressure.
Patent GB-630779-A (GB)
Title: Improvements in or relating to tobacco-feeding mechanism
IPC: A24C5/39
Filed: 1947-11-26
Abstract: 630,779. Cigarette - making machines. MOLINS, D. W., and MOLINS MACHINE CO., Ltd. Nov. 26, 1947, No. 31315. [Class 130] Dust is prevented from rising from the hopper of a continuous-rod machine by providing suction means in a shoot 19 into which stalks &c. are winnowed by rotating vanes 6. A partition 11 and a comb 12 divide the picking and winnowing part from ,the rest of the hopper, a small passage 14 being left for admission of air though this may be omitted, the main air supply taking place in either case through openings between shoot walls 15 and the trough 9 leading to the garniture.
Patent GB-299784-A (GB)
IPC: H01M6/12
Filed: 1928-10-30
Abstract: 299,784. Siemens & Halske Akt.- Ges., (Assignees of Schenkel, K.). Oct. 31, 1927, [Convention date]. Electrodes; carbon electrodes, making absorbents.- Plates consisting of a layer of carbon and a layer of de. polarizer such as manganese dioxide joined together by pressure are provided with a stiffening device made by pressing on to the surface of the depolarizer a supporting or reinforcing medium. The stiffener may comprise a layer of linen or perforated paper which may also serve to absorb the electrolyte. The Specification as open to inspection under Sect. 91 (3) (a) states that the stiffener may also consist of a layer of graphite which surrounds the edges of the depolarizer, or as shown in the drawing (Cancelled), the graphite G may also extend over one face of the depolarizer D. The depolarizer may also be stiffened by means of a binding medium such as rosin which is first mixed with graphite and the mixture heated to melt the rosin. The mass is then powdered and mixed with the manganese dioxide forming the depolarizer. The mixture is heated and pressed into shape. Plaster of paris may be used for the same purpose; this is mixed in the dry state with the depolarizer and water then added. A substance such as glue may be dissolved in the water to delay the setting of the plaster. This subjectmatter does not appear in the Specification as accepted.
Patent GB-315222-A (GB)
Abstract: 315,222. Groot, M. J. de. July 9, 1928. [Convention date]. Adjusting-apparatus.-In galvanometers of the moving coil type in which the coil is replaced by a fine wire stretched in a narrow air-gap between the poles of a powerful electromagnet, two optical systems are used which must be co-axial and focussed sharply on the fine wire. The adjustment of the optical system 1 is effected by supporting it in a tube 4 arranged in a tube 6 in ball bearings a, b which permit of relative axial movement, the tube 6 being in one with a flange 17 adjusted by screws to ensure that the optical system 1 is co-axial with the system in the opposite pole M1. To adjust the apparatus the screws d are loosened and the screws t adjusted to move the flange 17 against the action of springs 15 so that the optical axis are parallel. Screws 16, arranged round the flange 17 are then operated to make the optical systems co-axial. The screws d are then tightened. Focussing is effected by actuation of the coarse screw 13 and the fine screw 13<1>, the points of which engage projections 12, 12<1> on a ring 11 engaging a ring 7 on the top of the tube 4 through balls 10, 10<1>, the ring 7 being maintained against the ring 11 by a strong spring 8. The ball-bearings 5, 5<1> ensure rectilinear axial displacement of the optical system in the process of focussing.
Patent GB-172027-A (GB)
Title: Process for the formation of cyanic compounds
IPC: C01C3/00
Filed: 1921-11-25
Abstract: Alkali and alkaline-earth cyanides are produced by the action of nitrogen on a mixture of the corresponding carbonate and carbon, the latter being preferably in large excess.  The reaction is carried out in a furnace of the type in which a flame above the charge acts as the source of heat, and to prevent the destruction of the cyanide through contact with the other reaction products, the furnace is provided with a pervious hearth through which the reaction products are withdrawn, while the furnace space is filled, for the most part, with reducing-gases, which are burnt in the upper part of the furnace.  The furnace hearth may consist of hollow iron plates stood on edge, through which water or cold gases are passed to cool the reaction products.  If necessary, the water or other cooling-medium may be injected into the reaction products to produce ammonia and soda, the latter being returned to the furnace.
Patent GB-510767-A (GB)
Title: Improvements in automatic pilots for aircraft
IPC: G01C19/00
Filed: 1937-11-04
Abstract: 510,767. Fluid - pressure servomotor - control systems. SPERRY GYROSCOPE CO., Inc. Nov. 4, 1937, No. 31616/38. Convention date, March 4. Divided out of 510,697. Drawings to Specification. [Class 135] The subject-matter of this Specification is included in that of Specification 510,697, but the claims differ.
Patent GB-1351507-A (GB)
Title: Process for the purification of light paraffinic petroleum distillates
IPC: H04H20/88
Filed: 1971-07-06
Abstract: 1351507 Purifying C 5 -C 7  paraffinic mixtures LABOFINA SA 6 July 1971 [5 Feb 1971] 31637/71 Heading C5E The aromatics, sulphur and nitrogen contents of paraffin fractions boiling in the range 25-100 C. (i.e. C 5 -C 7 ) are reduced by hydrogenation at 150-375 C., a hydrogen partial pressure of 10-100 kg./cm.<SP>2</SP>, a space velocity of 0À5 to 20 V/V/hour and a hydrogen to hydrocarbon ratio of 100-3000 Nm.<SP>3</SP>/m.<SP>3</SP> in the presence of a catalyst comprising a silicaalumina carrier containing silica in a greater quantity by weight than alumina and 0À1 to 2 wt. per cent of platinum distributed such that at least 30 wt. per cent of the platinum is on the catalyst surface which is accessible to the reactants. The feed can be pretreated to reduce its sulphur content by a caustic wash or by sweetening to convert mercaptans to disulphides which are removed on distillation to produce the 25- 100 C. cut. About 10% isomerization of nparaffins to iso-paraffins occurs during the hydrogenation, the product can be isomerized to branched chain paraffins for use as gasoline components.
Patent GB-803189-A (GB)
Title: Improvements relating to arc chutes
Inventor: LEGG DUNCAN
IPC: H01H9/34
Filed: 1955-11-04
Abstract: <PICT:0803189/III/1> An arc chute (see Group XXXVII), includes spaced plates 10, each comprising a ferrous metal sheet 20 coated with an inner layer 21 of an insulating material of high dielectric strength and an outer layer 22 of refractory insulating material which is essentially highly arc resistant but of lower dielectric strength than the material of the inner layer.  The inner layer may be a synthetic resin, for example, a cold setting polyester resin such as known by the Trade name "Marco," a silicone varnish such as that known as "M.S.996" (Midland Silicones Ltd), a phenolic based varnish such as that known as "M.472" (Sterling Varnish Co.) or an epoxide resin such as those known under the Registered Trade Marks "Epikote" and "Araldite".  It may be applied in one or more coats by dipping, spraying, brushing or casting.  Alternately, the inner layer may be of insulating tape such as silicone bonded glass tape, polythene tape or tape of the polyethylene terephthalate material known under the Registered Trade Mark "Melinex," in which case the tape may be wound around the sheet or glued to the sheet by a suitable adhesive, e.g. epoxide resin glue.  The outer layer 22 may be of fireclay or a cement of alumina, silica, magnesia or zircon, suitable materials being those sold under the Trade names "K Cement" (Thermal Syndicate) and "Tiluma" (Sankey).  Powdered refractory material such as fine sand or quartz grains may be stuck to the inner layer to provide a key for the outer layer, which may be glazed.
Patent GB-1030206-A (GB)
Title: Improvements in or relating to binary decimal gauges
IPC: G05B19/44
Filed: 1963-08-12
Abstract: 1,030,206. Machine tool details. CHEMCUT CORPORATION. Aug. 12, 1963 [Aug. 13, 1962], No. 31714/63. Heading B3B. A gauging device comprises a consecutive series of pairs of binary gauge elements, each pair exhibiting a fractional difference in length, and means for shifting a selected element of each pair into longitudinal alignment to aggregate a desired length. In a vertical milling machine having a work-table 32 movable by a screw 52 and motor means 50TAB on a saddle 36 movable by a screw 54 and motor means 50SAD on a knee 34, the table is stopped in a predetermined position by a pawl 48, which is first moved to engage a selected one of a number of inch gauges 47 as in Specification 944,460, and then actuates switches to stop the table. The sets of pairs of gauges P, Fig. 9, differ by 0À001, 0À002, 0À004, 0À008, 0À01, 0À02, 0À04, 0À08, 0À1, 0À2, 0À4 and 0À4. One of each pair is selected by one of a series of pistons 94 which is raised or not raised by selective binary signals from a tape. The gauges are pushed endwise by a pneumatically-operated rod 56 and are held rigidly in line by lateral clamps 78, 80. One gauge of each pair is adjustable in length by a screwed stop 102 to determine the difference between the gauges, the overall length of which is immaterial. The table-stopping pawl 48 is attached to the rod 56 by a clamp 58.
Patent GB-1521104-A (GB)
Title: Electronic equipment for wireless monitoring of fencing bouts
IPC: A63B69/00
Filed: 1975-07-30
Abstract: 1521104 Fencing apparatus; scoring ANVAR AGENCE NATIONALE DE VALORISATION DE LA RECHERCHE 30 July 1975 [2 Aug 1974] 31803/75 Headings A6D and A6M Electronic equipment for monitoring fencing bouts comprises radio transmitters 1, 2 carried by each fencer, a receiver RS for receiving signals transmitted by the transmitters and a signalling unit which produces audio or visio signals in response to signals received by receiver RS, and which discriminates between hits made on the oponents body and those made by a clash of swords. Details of the circuitry are disclosed in the Specification.