baber/WOPTO huggingface dataset:
Patent GB-252144-A (GB)
Title: Improvements in and relating to electric circuit connectors
IPC: H01H33/02
Filed: 1926-04-29
Abstract: 252,144. British Thomson-Houston Co., Ltd., (Assignees of Tovey, G. H.). May 18, 1925, [Convention date]. Couplings.-A rigid conducting member 7 is secured to a support, such as a switch-casing 5, by means of a sleeve 17 that is compressed upon the member 7 and has a flange 16 by which it is bolted to the support. The member 7, which forms a terminal and carries switch contacts 3, is enclosed in insulation 14 moulded, wrapped, or slipped thereon, and the sleeve 17 is pressed upon it until the member 7 is deformed (see Fig. 3)
Patent GB-1204636-A (GB)
Title: Process for preparing sodium tetrolate
IPC: C07C51/15
Filed: 1969-03-04
Abstract: 1,204,636. Sodium tetrolate. SANKYO CO. Ltd. 4 March, 1969 [4 March, 1968], No. 11354/69. Heading C2C. Sodium tetrolate is prepared by contacting sodium methylacetylide with carbon dioxide in the presence of a tertiary amine. The sodium acetylide may be prepared by contacting methylacetylene with sodium metal in an inert solvent, e.g. a hydrocarbon such as xylene, in the presence of a tertiary amine. Aliphatic, aromatic and heterocyclic tertiary amines are listed and triethylamine and N,N-dimethylaniline are preferred.
Patent GB-557993-A (GB)
Title: Heating of switches and operating mechanism of railway point layouts
IPC: E01B7/24
Filed: 1942-08-13
Abstract: 557,993. Railway points &c. CONDY, J. H., and LONDON PASSENGER TRANSPORT BOARD. Aug. 13, 1942, No. 11355. [Class 104 (i)] To prevent icing &c. of railway points &c. they are heated by hot water &c. circulating in pipes 1 arranged adjacent the points. The slide chairs 11 may be bored to form part of the circulating system, and receive spigots 12 on the water pipes. The water may be circulated by a pump or by thermo-syphon action. Two thermostats may be provided, one to start the circulation, the other to stop it, at given temperatures.
Patent GB-725368-A (GB)
Title: Crossbar switch
IPC: H01H63/20
Filed: 1953-04-24
Abstract: 725,368. Automatic exchange switches. STANDARD TELEPHONES & CABLES, Ltd. April 24, 1953 [April 28, 1952], No. 11355/53. Class 40 (4). A cross-bar switch comprises a co-ordinate array of bars of magnetic material forming air gaps at the cross-points, in which lies a magnetic armature attached to one of the bars and arranged to move only if both the horizontal and vertical bars forming the gap are appropriately magnetized. Fig. 1 schematically represents a simple form of the invention. Horizontal bars H1 . . . Hm may be magnetized by coils HC1 . . . HCm and vertical bars V1 . . . Vn by coils VC1 ... VCn. The magnetic circuit may be completed by " contacts " hc, vc although it is shown in the Specification that it is generally advantageous to omit, i.e. " short-circuit" these contacts. With this arrangement it is shown that the flux across the gap between two energized bars (e.g. Hy and Vx) is of the order of twice that across one energized and one unenergized bar (e.g. Hy and V2). The armatures in the gaps must therefore be arranged to be marginally responsive. This disadvantage may be overcome by arranging the armatures to be attached to the horizontal bars and to lie between opposing polepieces of pairs of vertical bars which are energized with equal and opposite fluxes. Fig. 4 illustrates one such pair of vertical bars 2, 3 energized by coils 4, 5 and having polepieces 10 and 11 between which lies the armature 14. The latter is attached to a horizontal bar 6 energized by a coil 7. A contact member 17 is pre-stressed so as to tend to move downwardly and to the right, and is normally lodged in the slot 21 in the vertical insulating member 22. When the armature 14 moves to the left a contact operating member like 15 moves the contact member 17 to the left, disengaging it from the slot 21, whereupon it moves downwards due to its prestressing to make contact with the horizontal conductor 25 in the V-notch 24. The energizing currents for the coils 4, 5 and 7 may now be removed. A further contact member 18 is provided for actuation when the armature is moved to the right (by interchanging the polarities of the currents applied to coils 4 and 5). The switch shown may be used as a multipoint selector switch or for registering a plurality of digits comprising a subscriber's number. One resetting mechanism only is therefore provided and consists of an electromagnet 32 which on operation raises bars such as 29 carrying bars 43 of insulating material which raise the actuated contact members to the level of the notches 21 into which they then spring. In the case of a switch having n inlets corresponding to the horizontal bars and m outlets corresponding to the vertical bars n separate restoring mechanisms may be provided, one for each inlet. In the case of long bars the single coil may be replaced by two oppositely poled coils, one at each end of a bar.
Patent GB-1378046-A (GB)
Title: Combined window and louver construction
IPC: E06B9/264
Filed: 1972-03-10
Abstract: 1378046 Blinds HORDIS BROS INC 10 March 1972 [12 March 1971] 11356/72 Heading E1J A double glazed window unit has a louvre blind 14 between the panes 16, the blind comprising slats 44 supported by metal cables 36 themselves supported by upper and lower rails 34, 28 which are operable to effect pivoting. The slats have holes (46) receiving metal supports 38 welded to the cables. Tubular connectors 58 are bonded to the ends of the cables 36 and pivoted to top and bottom rails 34, 28 which are pivotally supported on members 24, 32 secured to frame 12. An extension of lower rail 28 carries a gear (84, Fig. 7, not shown) meshing with a gear (80). Rotation of knob (74) causes magnet (76) to rotate magnet (82) and thus gear (80), which causes rotation of the bottom rail and thus of the louvres.
Patent GB-610945-A (GB)
Title: Improvements in or relating to fluid pressure operated jacks
IPC: B66F3/30
Filed: 1946-04-12
Abstract: 610,945. Hydraulic apparatus. AUTOMOTIVE PRODUCTS CO., Ltd., and HARRISS, J. H. April 12, 1946, No. 11378. [Class 69 (ii)] [Also in Groups XXX and XXXII] In a fluid pressure jack with means for damping the movement of the piston at the end of its stroke, the fluid outlet comprises a spring-loaded tubular plunger, one end of which is engaged by the piston or cylinder near the end of the stroke to restrict the flow of fluid from the cylinder. As applied to a double-acting jack, when fluid pressure is admitted into a chamber 12, Fig. 2, a piston 13 is forced to the left to expel fluid from a chamber 11 through a port 15 back to the reservoir. The flow of fluid from the chamber 11 is progressively restricted as the piston closely approaches the plunger and the pressure thus produced, acting upon the projected area of the chamfered surfaces 36, 37 at the inner end of the plunger, is just sufficient to maintain a clearance between the plunger and piston, and acting upon the piston slows down the movement of the jack during the remainder of the stroke. To return the piston, pressure is admitted into chamber 11 through port 15 and a non-return valve 41 forcing the piston to the right until the flange 34 prevents further movement of the plunger after which fluid enters the chamber 11 freely through the plunger. Similar damping means at the end of the cylinder comprises a sleeve 47 through which fluid must pass in entering and leaving the chamber 12, said sleeve being slidably mounted in the piston-rod 14 and having ears 48 projecting through slots 45 to carry a ring 51 surrounding the piston-rod, which engages a recess 75 in the cylinder head 66, Fig. 3, when it has been carried back thereto by movement of the piston. Continued movement of the piston beyond this position causes the surface 61 of a member 57 to approach the end of a plunger 53, similar to the plunger 32. To return the jack from this end, pressure is first admitted into chamber 12 through passages 74, 73, the non-return valve 64, holes 63 and slots 45 until the plunger 53 and surface 61 are disengaged by motion of the piston. A modification is described with reference to Figs. 5, 6 (not shown), in which the tubular plunger and non-return valve are contained by the cylinder heads at both ends of the jack. Specification 562,073, [Group XXVI], is referred to.
Patent GB-1459044-A (GB)
Title: Concentrated copper -1- nitrate/propionitrile solutions as  complexing agents for olefin separations
IPC: C07C67/00
Filed: 1974-03-14
Abstract: 1459044 Separating hydrocarbons using CuNO 3 -propionitrile solutions SHELL INTERNATIONALE RESEARCH MAATSCHAPPIJ BV 14 March 1974 [16 March 1973 (2)] 11447/74 Heading C5E A substantially anhydrous solution of CuNO 3  in propionitrile containing up to 26 wt. per cent Cu<SP>+</SP> and not more than 5 wt. per cent Cu<SP>++</SP> is used to separate an unsaturated hydrocarbon from less unsaturated and/or saturated hydrocarbons by selective complex formation of the unsaturated hydrocarbon with the copper (I) followed by decomposition of the complex. The solution is prepared by reacting Cu(NO 3 ) 2  and Cu in amounts to give on complete conversion not more than 4% by wt. Cu<SP>+</SP> in propionitrile solution at elevated temperature and then removing a proportion of the propionitrile solvent, e.g. by distillation under reduced pressure. Styrene may be separated from ethylbenzene; ethylene and/or propylene from methane, ethane, and/or propane; and butadiene and/or isoprene from C 4 -C 4  alkenes and alkanes. The hydrocarbon mixture may be contacted with the CuNO 3 -propionitrile solution at 30-80‹C., preferably countercurrently in an extractive distillation column. The separation of styrene may be carried out in the presence of a C 5 -C 18  paraffin counter-solvent in a rotating disc contactor, the styrene being recovered from the complex with Cu<SP>I</SP> by ligand exchange with an excess of a C 10 -C 14  olefinically unsaturated compound.
Patent GB-114717-A (GB)
IPC: F02M1/00
Abstract: 114,717. Voss, E., and Oliver, G. June 14, 1917. Spray carburettors.-Heavy liquid fuel discharged through a nozzle f which may be provided with heat-conducting gills passes, together with air admitted at k through a vaporizing chamber c provided with gills d and issues into a choke tube a to which additional air is admitted by a valve j. The chamber c and nozzle f are heated by an exhaust jacket e. Light fuel and water are admitted near the choke tube through needle valves n, m respectively, and the heavy fuel is controlled by a needle valve with a coned head p to spray the fuel on to the sides of the vaporizing chamber. The mixture is controlled by a valve q and the air inlet valve j has, in its lower edge, a slot t which permits water to drain away. A modification of the water drain is described for cases in which the water inlet is at the bottom of the air inlet. A modified form of carburettor also is described in which the choke tube is vertical and surrounds the vaporizing chamber.
Patent GB-541852-A (GB)
Title: Improvements in roll film cameras
IPC: G03B19/04
Filed: 1940-07-10
Abstract: 541,852. Roll-film cameras. ZEISS IKON AKT.-GES. July 10, 1940, No. 11502. Convention date, Nov. 18, 1938. [Class 98 (i)] To indicate whether a roll-film camera, especially one unprovided with a film number exposing window, is loaded with film or not, an opening 1 is provided in the rear wall through which a marking 5 is visible when no film is in the camera, the film when in position covering the mark, which may be carried by the frame bounding the exposure aperture. The opening is covered by a non-actinic window, and, as shown is closed by a spring-urged slide 2 movable by a button to open it.
Patent GB-406879-A (GB)
Title: Improvements in and relating to wheels with detachable rims for power-driven vehicles and the like
IPC: B60B25/18
Filed: 1933-04-19
Abstract: 406,879. Vehicle wheels. ZIPPER, E., and ZIPPER, W., 120A, Hietzinger-Hauptstrasse, Vienna. April 19, 1933, Nos. 11508 and 11509. Convention dates, April 19, 1932 and Aug. 26, 1932. [Class 144 (ii).] In a detachable-rim device of the kind in which the inflationpressure of the tyre is utilized to secure the rim on the wheel, means are provided to permit a slight axial separation of the two parts of the detachable-rim after assemblage on the wheel. The rim comprises a main-part 10 and a detachable flange 12 connected by a split-ring which is forced into engagement with a locking- ring, or a fixed abutment on the wheel, by the tyre-pressure. In the form shown in Figs. 1 and 3, the split-ring 13 has coned surfaces 14, 22 mating respectively with coned surfaces 15, 23 on the rim-part 10 and a locking-ring 25. In the position shown in Fig. 1, the ring 13 is held expanded, as by means of a removable toggle-device 18, Fig. 3, so as to leave a slight gap 30 between the rings 13, 25. The toggle &c. being removed, the ring 13 contracts and is forced, by the tyre-pressure, into jamming abutment with the ring 25. The latter is shown provided with lugs 28 adapted to engage, in bayonet-joint fashion, with lugs 29 on the wheel. Fig. 6 shows a modification in which, to prevent accidental separation of the rimparts 10, 12 when off the wheel, the split-ring 13 has a flange 33 adapted to abut a flange 32 on the rim-part 12 before the ring 13 can contract out of engagement with the rim-part 10. Fig. 15 shows a further modification in which one split-ring 36 serves as the means for connecting the rim-parts 10, 12 together and the complete rim to the wheel.
Patent GB-820071-A (GB)
Title: Linear dimension gaging apparatus
IPC: G01B13/12
Filed: 1957-04-09
Abstract: 820,071. Linear dimension gauges. SHEFFIELD CORPORATION. April 9, 1957 [April 17, 1956], No. 11509/57. Class 106 (2). Apparatus for gauging the disposition of the intersection of a pair of angularly related surfaces 38, 39 on a part 21 with respect to a reference portion 40 on the part 21 comprises means 25 for locating the reference portion 10, a gauge head 32 for simultaneously engaging both the surfaces and supporting means 50 disposing the gauge head work contactor 35 for movement at an acute angle to both the surfaces 38, 39 and carrying the gauge head for movement substantially transverse the line of gauging. As shown, the apparatus is used for gauging " bearing standout " (i.e. distance 45 (see Fig. 2)) when a selected cone 21 is placed in a nominal cup with nominal rollers. Feelers 35, 36 contact the point of intersection of the inner raceway 38 and backface rib 39 of the cone 21, measurement being taken along the line 43, perpendicular to the outer raceway 42. Fig. 2 shows that a displacement of the intersection of surfaces 38, 39, along line 90 or along line 91 will produce the same amount of displacement 93 and hence the same variation in distance 45. In operation, cones 21 to be gauged roll down an inclined shoot 11, being allowed to fall one at a time by air-operated stops 15, 16, and held by stop 17. Plunger 25 is then actuated and the cone being tested is moved to the full-line position shown in Fig. 3 for gauging by feelers 35, 36 which are pivoted, and biased by springs 51, thus enabling them to gauge the intersection of the surfaces. After gauging, plunger 25 is withdrawn, and a spring-loaded plunger 27 pushes the cone back into shoot 11, where it is released by stop 17, and the sequence starts again with a new cone. The machine is air operated, gauging being by fluid leakage with the indications given by means of a float moving in a vertical tapered tube, and more than two gauge heads may be used. Specification 705,708 is referred to.
Patent GB-759796-A (GB)
Title: Liquid-blast electric circuit interrupter with barrier plates forming a u-shaped passage
IPC: H01H33/75
Filed: 1954-04-21
Abstract: 759,796. Liquid blast switches. ALLISCHALMERS MANUFACTURING CO. April 21, 1954 [April 27, 1953], No. 11560/54. Class 38(5) In a circuit-breaker as' described in Specification 759,794, the arc-quenching structure 35 is made up of superposed insulating discs 65-72 which define an inlet passage 61 for arc-extinguishing liquid, nozzles 62 to direct the liquid across the arc passage 59, and a venting passage 63. Discs 83 may be substituted for the discs 71 used in the structure 35. Specifications 759,797 and 759,798 also are referred to.
Patent GB-580213-A (GB)
Title: An improvement in or relating to fire extinguishers and like containers designed to hold media under pressure
IPC: A62C13/00
Filed: 1944-06-19
Abstract: 580,213. Fire extinguishers.NUSWIFT ENGINEERING CO., Ltd., and HENSHAW, T. A. June 19,1944, No. 11611. [Class 106 (ii)] A tell-tale device for a fire extinguisher or con tainer designed to hold a medium under pressure characterised in that there is removably supported within the container - a hollow member of metal or other suitable material and having a wall or portion of such form and /or thickness that the said hollow member when subjected to a determined external pressure, becomes deformed in such a manner that a part, normally free to move within the hollow member is gripped and prevented from movement. In the embodiment shown in Fig. 2, a short length b of tube is attached to a screwed plug a employed to close the charging opening of the container. One end of the tube is soldered to a nipple c and the other end is 'closed by a plug e and between its ends the tube is flattened as shown at b<1>. A strip of material f is free to move inside the tube when the tube is subjected to less than a determined external pressure, but when the container is charged to the desired pressure, the flattened portion b<1> becomes deformed in such a manner as to grip the member f and prevent it moving when the container is shaken. Fig. 3 shows another embodiment, a ball h is used as the tell-tale member.
Patent GB-1451167-A (GB)
Title: Method for separating lactones from a mixture containing lactones
IPC: C07D307/33
Filed: 1974-03-15
Abstract: 1451167 Separating lactones TEIJIN Ltd and SUMITOMO CHEMICAL CO Ltd 15 March 1974 [17 March 1973] 11717/74 Heading C2C A method for separating lactones from a mixture comprising (a) at least one hydroxy acid wherein the OH group and the COOH group are bonded through 3 or 4 carbon atoms, a lactone derived therefrom, a lower polymer of said hydroxy acids and/or said lactones or an ester of said hydroxy acids and/or said lactones, and (b) at least one hydroxy acid wherein the OH group and the COOH group are bonded through 5 carbon atoms, a lactone derived therefrom, a lower polymer of said hydroxy acids and/or said lactones or an ester of said hydroxy acids and/or said lactones, comprises heating said mixture in the presence of at least one monovalent or bivalent aliphatic or alicyclic alcohol under conditions so as to remove by distillation the lactones derived from the hydroxy acids wherein the OH group and the COOH group are bonded through 3 or 4 carbon atoms. Exemplified is the separation of #- valerolactone and #-caprolactone from #-caprolactone. Suitable aliphatic and alicyclic alcohols are 1-dodecanol, 1,5-pentanediol, 1,6-hexanediol, 1,7-heptanediol, 1,8-octanediol, 1,9-nonanediol, 1,10-decanediol, 1,11-undecanediol and 1,12- dodecanediol.
Patent GB-105495-A (GB)
Title: Improvements in and relating to Submersible Vessels.
Inventor: VANDERLIP WASHINGTON BAKER
IPC: B63G8/36
Filed: 1916-08-18
Abstract: 105,495. Vanderlip, W. B., and Lawson. J. Aug. 18, 1916. Drawings to Specification. Casings.-An oil-fired steam-generator for use on a submarine vessel is provided with a, heat insulating vacuum jacket. The vacuum is maintained by an ejector.
Patent GB-638617-A (GB)
Title: Galvanometer mounting
IPC: F16F15/02
Filed: 1948-04-29
Abstract: 638,617. Instrument casing and supports. CREENSLADE, G. R. April 29, 1948, No. 11762. [Class 37] A galvanometer is mounted within a housing so that it may be clamped in a fixed position when not in use, but the clamping means may be released to allow the galvanometer to be suspended by springs when in use. A galvanometer G is secured to a heavy metal block 22 suspended by springs 20 within a casing 24, the springs being adjustable by means of screws 17 engaging internally threaded sleeves with slotted heads 15. A transverse shaft 27 is mounted in brackets 25, 26 and has a head 28 with a slot which may be engaged by a screwdriver for rotation. The shaft 27 drives through bevel gearing 30, 31 two vertical screwed shafts 32 by which clamps 34 are raised or lowered. Each clamp 34 has a'sponge rubber pad 36 on its lower face so that when the clamps are screwed down the block 22 is held between these pads and a sponge rubber cushion 10. A block of sponge rubber 40 is secured in each corner of the case so as to bear upon the adjacent spring 20 and thereby damp vibration of the springs and keep the galvanometer from swinging.
Patent GB-125472-A (GB)
Title: Improvements in or relating to Means for Firing Guns Carried by Aircraft.
IPC: F41A19/05
Filed: 1916-08-19
Abstract: 125,472. Vickers, Ltd., Challenger, G. H., and Savage, H. A. Aug. 19, 1916. Fire between aircraft propeller blades, controlling and synchronizing.-Relates to means for controlling the fire forwards or rearwards of automatic or other guns on aircraft so that the bullets will miss the propeller blades. According to the present invention, two or more guns are mounted on the aeroplane and the firing is controlled automatically by a cam driven from the propelling motor and provided with one or more operative surfaces. As shown in Fig. 3, two guns A<1> are mounted side by side to fire forwards, the cam 13 being driven by the motor and having two operative surfaces b, b', Fig. 4, acting against rollers b<x>, b<1x> on push-rods B<x>, B<1x> arranged within tubes on a bracket a<1> carrying the cam B. The opposite ends of the rods B<x>, B<1x> operate upon the sears of the guns as described in Specification 124,486. Two separate cams may be employed, each having a single operative portion and adjustable for different dispositions of the guns. In the modification shown in Fig. 6, the rollers b<x>, b<1x> are mounted on levers b<2>, b<3> connected to tension rods B<x>, B<1x> and adjustably pivoted in the bracket a. Each lever has an eccentric C by which the rollers can be moved into and out of contact with the cam, the eccentric devices being operated by Bowden wires C' from the pilots column A<2>, Fig. 3.
Patent GB-1415022-A (GB)
Title: Multiplex apparatus for data transfer with a data processor and communication lines
IPC: H04J3/24
Filed: 1973-03-12
Abstract: 1415022 Data processing HONEYWELL INFORMATION SYSTEMS Inc 12 March 1973 [13 March 1972] 11852/73 Heading G4A The description is identical to that of Specification 1,415,021, but the claims are directed to an input/output controller comprising a first and second memory coupled for data transfer, the first memory being connected to means for serially transferring data to and from communication lines and the second memory being connected to means for parallel transfer of data to or from a central processor unit.