baber/WOPTO huggingface dataset:
Patent GB-904148-A (GB)
Title: Self-propelled load carrying truck
IPC: H01B17/14
Filed: 1959-08-28
Abstract: 904,148. Marshalling vehicles. COMMISSARIAT A L'ENERGIE ATOMIQUE. Aug. 28, 1959 [Aug. 30, 1958], No. 29511/59. Class 78 (4). [Also in Group XXXII] A self-propelled load-carrying truck movable on circular tracks 22, Figs. 1 and 2, e.g. around an atomic reactor, or on straight tracks 21 extending radially from the reactor and intersecting the tracks 22, comprises a chassis 1 provided with a pair of parallel axles 5a, 5b for wheels 10 engageable with the tracks 21 and a pair of converging axles 7a, 7b for wheels 26 engageable with the tracks 22, the axles 5b and 7a each having associated therewith a drive motor, the axles 5a, 5b also being provided with screwjacks 14 for raising and lowering those axles relative to the axles 7a, 7b, and detecting means in the form of rollers 19, 20, respectively, carried by arms 17, 18 pivoted to the chassis, which rollers detect the presence of a track perpendicular to the track over which the truck is moving and cause the truck to stop in a position in which the inoperative wheels are in alignment with the detected track. The screw jacks 14 are engaged by nuts driven by worm gears on a shaft at each end of the truck, driven from a single shaft 15 and a motor (not shown). The axles 7a, 7b are resiliently mounted on the chassis, the axle 7a being driven from a motor 25 and reduction gear 11. The axle 7a can also be driven by an inching motor 12 during which time the motor 25 will rotate idly. Similar inching motors are provided for the motors driving the jacks and the shaft 5b and the motors are all controlled from a desk 9 on the chassis. In operation with the truck running, e.g. on a circular track 22, the driver stops the truck close to the intersection of the track 22 with a radial track 21, releases the associated arm 17 which is then spring-urged towards the ground so that the roller 19 bears thereon. Thereafter the inching motor 12 is operated and the roller 19 eventually drops into the bottom of a rail 21 whereby the arm operates a switch 23 in the supply circuit of the motor 12 and the latter stops. The jacks 14 are then operated to lower the wheels 10 relative to the axles 7a, 7b and to engage the track 21. A similar switch 24 is provided for the arm 18 and the inching motor for the axle 5b. The load is carried on a pivoted table 3 which is aligned with the track. Indicators 16 are provided on the jacks 14 associated with the axles 5b, to indicate the height of the chassis above the ground.
Patent GB-1283842-A (GB)
Title: Improvements in separators
IPC: B01D45/16
Filed: 1970-06-18
Abstract: 1283842 Centrifugal separators WRIGHTAUSTIN CO 18 June 1970 [18 June 1969] 29520/70 Heading B2P In a cyclone-type separator comprising a cylindrical chamber 18, Fig. 1, in which a gas laden with liquid or other impurities is introduced through an inlet pipe 10 at one end of the chamber and swirled, e.g. by means of vanes 16, so as to separate out the impurities centrifugally against the chamber wall while the clean gas, after reversal of flow, is discharged through an outlet pipe 30, a hollow cylindrical perforate screen 34 is mounted coaxially of the chamber downstream of, and spaced from, the inlet pipe 10 and extends substantially to the other end of the chamber, the screen 34 being radially spaced from the chamber wall by means of spacers 36, Fig. 2, which are so constructed that with the screen they entrap the separated impurities between the screen and the separator wall but at the same time they permit said impurities to move circumferentially and axially to an outlet 40 at the said other end of the chamber. The spacers 36 are formed by circumferentially spaced open triangular perforated pleats formed in the screen. The screen serves to separate the swirling gas from the separated impurities thus minimizing their re-entrainment. The perforated pleats slow down the swirling motion of the impurities relative to the gas, thereby further reducing re-entrainment, and also serve to receive residual impurities which may separate down stream of the inlet end of the screen and pass them into the protected area behind the screen. In another embodiment, Fig. 4, the contaminated gas is introduced tangentially via passage 60, 62 into a vertical chamber 56 while the clean gas leaves upwardly via a bell-shaped outlet 70 leading to an outlet passage 72.
Patent GB-637290-A (GB)
Title: Improvements in or relating to devices for refacing valve seats
IPC: B23C3/05
Filed: 1948-11-13
Abstract: 637,290. Valve-refacing tools. GREENBURY, H. Nov. 13, 1948, No. 29537. [Class 83 (iii)] A device for refacing valve seats comprises an expansible sleeve h, adapted to fit the mouth of the valve casing or the like, a supporting sleeve f on which the expansible sleeve is loosely mounted, a freely rotatable tool-operating spindle a mounted in the supporting sleeve, and means for expanding the sleeve h and for advancing the tool spindle a. The sleeve h has one complete split from end to end and a number of partial splits alternately commencing at different ends, and is expanded by a cone f<SP>2</SP> on the end of the supporting sleeve and a slidable cone l which may be tightened by a nut j threaded on the sleeve. A collar p on the tool spindle a is engaged by an adjusting nut n which feeds the tool c. The latter is rotated by the hand-knob d and may be provided with teeth to cut a seating of convex form.
Patent GB-603949-A (GB)
Title: Improvements in or relating to starting carburetters for internal combustion engines
IPC: F02M1/04
Filed: 1945-11-06
Abstract: 603,949. Spray carburetters. MANLEY & KALLENBORN, Ltd., and WATSON, W. G. Nov. 6, 1945, No. 29599. [Classes 7 (ii) and 7 (iii)] A starting carburetter draws its air supply from the interior of the engine structure to avoid hissing, and control means cut out the fuel jet during normal running. The carburetter comprises a valve 17 having two passages 19, 18 co-operating with conduits 9, 10 leading to the cam-shaft housing, the smaller 19 serving as an engine breather during normal running and the larger 18 supplying air to the fuel jet 22 for the starting mixture. A spring 26 biasses the valve 17 so that under normal running the cam-shaft housing communicates through the passage 19 and ball valve 39 with a passage 4 leading to the induction pipe, a plunger 21 blocking the fuel jet 22. A cam surface 43 is provided on the valve 17 so that on rotation at starting by a lever 25 the plunger 21 is raised from the jet 22 and the passage 18 communicates with the conduit 9. The valve 39 prevents damage due to backfiring, and the jet 22 is fed with fuel through a pipe 36 from the main float chamber.
Patent GB-835632-A (GB)
Title: Improvements relating to pneumatic linear-dimension measuring or gauging instruments
IPC: G01B13/06
Filed: 1957-09-23
Abstract: 835,632. Pneumatic linear-dimension gauges. MERCER Ltd., T., and WEATHERBY, D. J. May 30, 1958 [Sept. 23, 1957], No. 29823/57. Class 106 (2). A pneumatic linear-dimension gauge has a source 1 supplying air at a constant pressure to a jet 4 fixed to the plunger 8 of a verticallymounted dial gauge 5. The plunger 8 is not spring-loaded as is customary, but has weights 7 applied to its upper end. Thus the air issuing from the jet 4 holds the plunger 8 at a constant distance from the surface of the workpiece A, and so variations in the size of the workpiece are indicated on the gauge 5. To prevent sticking due to friction, a dither coil is mounted on the body of the dial gauge.
Patent GB-1397306-A (GB)
Title: Electronic apparatus for controlling the needles in knitting machines
IPC: D04B15/66
Filed: 1972-06-26
Abstract: 1397306 Knitting machines TESALONANSTALT 26 June 1972 [9 July 19711 29837/ 72 Heading D1C [Also in Division G3]  In a flat bed, or circular, knitting machine a set 100, 101 131 of programme controlled electromagnets each selectively, preset the jacks 2 of a plurality of needles 2a for actuation by the cams of carriages (3), Fig 5 (not shown) during the overstroke time of the latter. Programming takes place when the carriage (3) has emerged laterally from needle bed 4. Programmed data on punched or magnetic tape read in unit (15), Fig 1 (not shown) is fed via decoder (14) to random access store (13) having as many cells as there are needles. The electromagnets 100 ... 131 are mounted on a longitudinally movalble bar 5 translated by lead screw and nut 6, 7 driven by motor 8, whose position is indicated by light source, perforated disc and photodiode assembly 9-12 so that each electromagnet successively takes up positions to operate the jacks 2 of each of the groups 0-31, 32-63, 992-1023 of needles. For each such position, the corresponding data is fed from store 13, via static memories 300-331 and amplifiers 200-231, to the electromagnets as required in accordance with the programme. For the V needle bed double feed machine of Fig 3, there is a store 13 for each feed of each needle bed, each such store operating via its own set of memories amplifiers and electromagnets. The store 13 may receive data from a central remote unit. As shown in Fig 3 each electromagnet 1, if energised, attracts armature 1a lever 1b moving sinker 2 so that butt 2b is positioned for engagement with the carriage cams. The needles are reset after each pass by a set of cams on the carriage. The lead screw may be driven by a stepping motor, rack and pinion, and assembly 9-12 omitted.
Patent GB-1120213-A (GB)
Title: Manufacture of resin-impregnated fibre materials
IPC: B29C70/00
Filed: 1966-07-04
Abstract: 1,120,213. Non woven fabric. COMPAGNIE DE SAINT-GOBAIN. 4 July, 1966 [2 July, 1965], No. 29839/66. Heading D1R. A mat, fabric or sheet of mineral fibres impregnated with resin containing filler is made by impregnating each face of the mat with a different quantity of filler, the difference between the quantities being so determined as to result in a symmetrical distribution of the filler about a median plan of the finished material. The impregnated mat is then shaped and hardened. The mechanical properties at each face in the finished material are similar and there is no tendency for the material to warp. As shown in Fig. 1 a cellulose film P is covered with a uniform layer of catalysed resin containing filler at E. The thickness of this layer is regulated at A to correspond to more than half, e.g. 60-90%, of the total mixture in the finished product. A glass fibre mat is then fed onto the resin/filler layer at B. The resin/filler mixture can be caused to penetrate the mat by rollers C-C' or by longitudinal wires (not shown). The remainder of the same mixture, e.g. 40-10%, is applied to the mat by a funnel I. A second film P' is applied to the mat at D and this can be cemented continuously to film P. The bag thus formed is calendered between rolls r, r' and passed through heated or unheated ovens H to cure the resin. The Iwo films P, P' are then removed from the material. In an alternative method the symmetrical distribution can be obtained by using an appropriate difference in the filler content of the resin/filler mixture applied on the two sides of the mat. The finished material can be flat or corrugated. The resin can be a mixture of polyester and styrene. The filler can be one or more of calcium carbonate, dolomite, powdered slate, asbestos powder, calcined alumina or silica.
Patent GB-862309-A (GB)
Title: A vehicle sliding roof extension
IPC: E04H15/06
Filed: 1958-09-18
Abstract: 862,309. Collapsible vehicles. LADLOW, B. P. Sept. 17, 1959 [Sept. 18, 1958], No. 29845/58. Class 108(1). Detachably secured to a vehicle drip channel by fasteners O is a frame having transverse members I held in spaced relationship by longitudinal tubular members L forming guides on which the roof extension N slides. Adjustable ground supports F may also be provided. Tubular members around the periphery of the extension N accommodate canvas screens.
Patent GB-1135490-A (GB)
Title: Improvements in or relating to compression spring load suspension systems
Inventor: GERLACH RAINER
IPC: B60G17/02
Filed: 1966-07-04
Abstract: 1,135,490. Vehicle suspension. WISSENSCHAFTLICH - TECHNISCHES ZENTRUM AUTOMOBILBAU VEB. 4 July, 1966, No. 29941/66. Heading B7D. A compression spring suspension system to enable load height adjustment comprises one or more obliquely arranged compression springs whose one end or ends is or are free to move in a vertical plane and whose other end or ends is or are positively movable in a horizontal plane so as to maintain the same height for different loads. In one embodiment, applicable to railway carriage suspensions, one end of a spring is adjustable in a horizontal direction and the other is constrained to move in a vertical guide. In another embodiment, Fig. 2, a pair of springs C<SP>1</SP> are connected to a vehicle axle A and their upper ends P are adjustable in a horizontal plane so that the suspension height h may be maintained for different loads.
Patent GB-391043-A (GB)
Title: Improvements in and relating to locks
IPC: E05B29/00
Filed: 1932-10-26
Abstract: 391,043. Key locks. BIEMER, H., 29, Rankestrasse, Berlin. Oct. 26, 1932, No. 29953. [Class 44.] A rotatable barrel lock comprises a plurality of thin tumbler strips 8 bearing directly against one another and provided with lateral lugs 9, Fig. 3, for displacement by a cam groove in the side of the key, the lugs 9 also preventing the tumbler strips from dropping out of the barrel 3. The tumbler strips 8 are not subjected to any spring loading but a spring- pressed tumbler 27 of the form shown in Fig. 9 may be fitted for engagement by a sloping end of the key. The rotatable barrel 3 may effect the withdrawal of a locking plunger 4 for the shackle of a padlock, Fig. 1, or actuate a tumbler 38 and withdraw the bolt of a mortice lock, Fig. 14. A guide rib 15 in the barrel 3 positions the key.
Patent GB-837044-A (GB)
Title: Improvements in or relating to manufacture of liquid nitric acid esters of aliphaticpolyhydric alcohols
IPC: C07C201/02
Filed: 1957-09-24
Abstract: Explosive liquid nitric acid esters of aliphatic polyhydric alcohols are prepared by continuously force feeding a stream of polyhydric alcohol through a tubular path to an elongated tubular reaction zone, simultaneously and continuously force feeding a stream of nitrating acid through a second tubular path to said elongated tubular reaction zone, impinging the separate streams of alcohol and acid upon each other at sufficient flow rates to form a turbulent reaction mixture stream in the tubular reaction zone, continuously advancing the resultant reaction mixture stream through the reaction zone at a flow rate corresponding to a Reynolds number of at least about 1000 until substantially all of the alcohol has reacted to form the nitric ester, and thereafter separating the liquid ester from spent nitrating acid.  The nitrating acid may be precooled before introduction into the reaction zone.  Spent acid may be fortified with sulphuric and nitric acids and recycled.  The preferred nitrating acid contains 18-40% HNO3, 45-70% H2SO4 and 11-17% H2O, and is preferably used in 6-30 times by weight the amount of alcohol. Specified alcohols are glycerol, ethylene glycol, diethylene glycol, triethylene glycol, propylene glycol, 1,2-, 1,3- and 2,5-butanediol, isopropyl ethylene glycol, and glycerol a -chlorohydrin.  The tubular reaction zone may be uncooled or partly or completely cooled.  The separated liquid nitric ester may be washed in one or more stages by mixing a stream thereof with a stream of aqueous washing liquid, separating the ester from the washing liquid between each wash.  The invention also comprises apparatus suitable for carrying out the above process.  Specification 783,405 is referred to.
Patent GB-909454-A (GB)
Title: Looper mechanism for sewing machines
Inventor: LEES NATHANIEL
IPC: D05B57/02
Filed: 1961-08-19
Abstract: 909,454. Sewing-machines. SINGER MANUFACTURING CO. Aug. 19, 1961, No. 29995/61. Class 112. In a chain-stitch sewing-machine an oscillating looper is pivoted on an axis parallel to the axis of a rotary bed shaft, and a cam rotatable with the bed shaft has two complemental cam surfaces, one of which engages the looper to pivot the latter in one direction, and the other of which engages a cam follower arm on the looper on the opposite side of the bed shaft from the point of engagement of the looper with the first cam surface for pivoting the looper in the opposite direction. A toy sewing-machine has a bed 1 to which is secured a heavy stabilizing base 5 and a sheetmetal work-supporting plate 6. The upper arm shaft 7 carries a gear 8 meshing with an internal gear formed in a hand-wheel 9, and is connected by a belt 13 and pulleys 14, 15 to a bed shaft 12. The latter carries on its front end a cam having two complemental surfaces 30 and 31. A shaft 25 journalled in bed 1 parallel to shaft 12 and held from axial movement by collars 26, 27, has adjustably fixed to its front end a collar 24 which carries a sheet-metal looper having a loop-seizing blade 22 which engages cam surface 30 and a follower arm 23 which engages cam surface 31.
Patent GB-943944-A (GB)
Title: Sterilization of multicontainer systems
Inventor: ROWLES HARWOOD SIMS
IPC: A61M5/14
Filed: 1962-08-04
Abstract: Unitary, closed, air-free, collapsible thermoplastic multicontainer systems, at least one container of which contains fluid and at least one container of which is empty of fluid and which are further provided with means for obstructing flow throughout the system are sterilized by taking said system and removing the obstruction to flow through the system, expressing sufficient fluid from the fluid containing containers into the originally fluid empty containers to maintain the walls thereof in spaced apart relation, steam sterilizing said system, and then expressing substantially all the fluid from said originally fluid empty container back to the originally fluid containing container and restoring the obstruction to flow throughout the system.  The multicontainer system may be constructed as shown in Specifications 803,515 and 803,516.  The obstruction means may consist of a hemo repellent bead located within a flexible walled tube joining the containers of the system. Specifications 773,342 and 809,329 also are referred to.
Patent GB-1090668-A (GB)
Title: Production of polyurethanes
IPC: C08G18/75
Filed: 1965-07-15
Abstract: Polyurethanes are prepared by reacting one or more compounds containing at least two -OH groups with a diisocyanate of the formula <FORM:1090668/C3/1> The reaction may take place with or without an inert diluent at a temperature of 50 DEG  to 300 DEG  C.  Suitable diluents are the halo benzenes. The reaction may take place initially by reacting half mole of e.g. a glycol per mole of diisocyanate wherein the more reactive isocyanate group, i.e. the group attached to the methyl radical will react with the glycol.  On addition of a further half mole of glycol at a higher temperature reaction will then take place at the isocyanate group attached directly to the alicyclic ring.
Patent GB-703808-A (GB)
Title: Improvements in or relating to ball pumps and motors
IPC: F04C3/06
Filed: 1951-12-24
Abstract: 703,808. Spherical pumps and motors. GUNTHER, J. J., RONNBOM, M. V., and RONNBOM, O. M. C Dec. 24, 1951 [Jan. 13, 1951], No. 30135/51. Class 110 (2) A part-spherical member 1, secured to a driving shaft 7 has a number of radial pumping chambers containing pistons 2 ... 6. The pistons are carried in an oblique ring 11 which causes them to reciprocate in their cylinders. The piston strokes may be varied by rotation of a handle 13 to alter the angle a between the axes of the shaft 7 and OP, the axis of the ring 11 and a support member 12. Ball bearings may be used in place of the plain bearings 20, 21. The ring 11 contacts a reduced radius of the ball' 1 at 18, which supports the parts 11, 12 against centrifugal force. Spaces 22, 23 permit the movements of the parts 11, 12 through variation of the angle α, which may even be formed on the other side of the shaft axis, the pumping then being reversed. The coupling means between a piston and the ring 11 comprises a cylinder 8 which is placed transversely in a cylindrical part 9, and a ring 10. The parts 8, 9 may be replaced by a ball joint. The ring 10 has five slots for, the drivers 11a, extending from the ring 11, which press at 19 on the backs, of the pistons.. The pump is valveless. Where the apparatus is used as a motor, the parts 13, 12 may be omitted.
Patent GB-306013-A (GB)
Title: New or improved process for the preservation of liquid eggs, egg yolk or egg white
IPC: A23B5/14
Filed: 1927-11-10
Abstract: 306,013. Donner, A. Nov. 10, 1927. Right to Patent relinquished. Preserving liquid egg materials.-Liquid eggs or the yolks or whites are preserved by adding acetic or lactic acid or a mixture of the acids. About one per cent of acid may be added. An essential oil, such as mustard oil, having preservative properties may also be added. In one example, of a pound of glacial acetic acid and one ounce of mustard oil are mixed with 100 pounds of liquid egg material and the product sealed in a non-metallic container. The Provisional Specification describes the addition-of sodium chloride to the acetic or lactic acid used. Reference has been directed by the Comptroller to Specifications 293,794 and 303,530.
Patent GB-724056-A (GB)
Title: Improvements in or relating to electrical secondary batteries
IPC: H01M4/14
Filed: 1952-11-28
Abstract: 724,056. Batteries. FULLER, L., and SUDLOW, E. W. Nov. 18, 1953 [Nov. 28, 1952], No. 30175/52. Class 53. An accumulator in which the separ. ators press against the whole area of the plates to support the active material is provided with positive plates in the form of grids of lead or an alloy of lead which are less than 0.06 inch in thickness and of which the openings have a width at least eight times the thickness of the plate. If the openings are not rectangular an average width is calculated by dividing the area of an opening by its longest straight dimension. The bars may be of circular, oval, or other shape and additional weak bars which are soon converted into lead peroxide may be provided. The whole pack of plates and separators may be inserted in the container under pressure. Fig. 3 shows an edge view of a plate in which the width b of an opening 24 bounded by bars 22 is greater tiian eight times the thickness of the plate. The separators may overlap all four edges of the plates to avoid free spaces in the container, the electrolyte being absorbed in the separators and plates. Specification 656,111 is referred to.
Patent GB-1184523-A (GB)
Title: Alkyl Aryl Ethers
Inventor: HAHN WILLI
IPC: C07C43/20
Filed: 1968-06-25
Abstract: 1,184,523. Alkyl-aryl ethers. FARBENFABRIKEN BAYER A.G. 25 June, 1968 [19 Sept., 1967], No. 30184/68. Heading C2C. A process for the preparation of alkyl-aryl ethers comprises reacting an aromatic hydroxy compound containing one or more phenolic -OH groups, with an olefin in the presence of a synthetic-resin-based cation exchanger in the H<SP>+</SP>-form as catalyst, the reaction being carried out in the presence of an aliphatic or araliphatic alcohol at a temperature in the range from 30 to 200 C. Preferably the aromatic hydroxy compounds are phenol, p-cresol and pyrocatechol, the aliphatic alcohol is isopropanol, and the olefin is propylene. The examples describe the preparation of isopropyl phenyl ether, isopropyl-p-tolyl ether and pyrocatechol isopropyl ether.