baber/WOPTO huggingface dataset:
Patent GB-1157356-A (GB)
Title: Catalytic Hydrogenation of Aromatic Hydrocarbons to the Corresponding Cycloaliphatic Hydrocarbon
IPC: C07C5/10
Filed: 1967-07-21
Abstract: 1,157,356. Hydrogenating aromatic hydrocarbons. AIR PRODUCTS & CHEMICALS Inc. 21 July, 1967 [21 July, 1966], No. 33568/67. Heading C5E. Aromatic hydrocarbons are catalytically hydrogenated to cycloaliphatic hydrocarbons in three zones, in the first of which the weight hourly space rate is 25-50 and 30-45% of the aromatic is hydrogenated, in the second of which the weight hourly space rate is 10-25 and 35-50% of the original aromatic is hydrogenated, and in the third of which the weight hourly space rate is 0.5-4 and substantially all the remaining aromatic is hydrogenated, the effluent from the first zone being cooled by admixture with recycled cycloaliphatic product before passage to the second zone, the effluent from the second zone being cooled (e.g. by indirect heat exchange) before passage to the third zone, and the effluent from the third zone being separated into vapour and liquid, at least part of the vapour being recycled to form part of the hydrogen for the first zone, and part of the liquid being recycled to cool the first zone effluent, the remainder of the liquid being collected as desired product. Suitable operating temperatures are: first zone 120-260 C.; second zone 135-260 C.; and third zone 135-232 C. The pressure in each zone may be 13À5-37À5 atmospheres. The catalyst, which may be the same or different in each zone, is conventional, e.g. Ni, Co, Pt, Pd, Rh, Fe or Ru supported on alumina, silica, pumice stone, asbestos, kieselguhr or diatomaceous earth. The hydrogenation of benzene to cyclohexane is described, but the following are also mentioned: toluene to methylcyclohexane, xylenes to dimethylcyclohexanes, and naphthalene to tetralin or decalin.
Patent GB-521423-A (GB)
Title: Improvements in or relating to electron discharge devices
IPC: H01J21/02
Filed: 1938-11-18
Abstract: 521,423. Thermionic valves. MARCONI'S WIRELESS TELEGRAPH CO., Ltd. Nov. 18, 1938, No. 33652. Convention date, Nov. 18, 1937. [Class 39 (i)] Interaction between electron streams from opposite sides of a cathode 20, surrounded by a control grid 21, to main and auxiliary anodes 25, 22 is reduced by screens 28 extending at opposite sides of the cathode transversely to the electron streams. In superheterodyne circuits, the electrodes 21, 22 form the local oscillator and a signal grid 23 surrounded by a screen grid 24 controls the electron stream to the anode 25. The side rods of the grid 23 are in a plane on the cathode side of the plane containing side rods of the grid 24 to prevent stray electrons passing around the grid 23 to the anode 25. A suppressor grid may be provided in front of the anode 25 or may be formed by transverse wires, or longitudinal strips or wires, across the gap between extensions of the screens 28 as shown. In a modification, the screens are ends of a sheet extending around the back of the anode 25. The valve is disclosed in U.S.A. Specification 2,036,696. Specifications 433,089 and 435,933 also are referred to.
Patent GB-842245-A (GB)
Title: Improved pipe coupling and sealing ring for use therein
IPC: F16L17/025
Filed: 1958-10-21
Abstract: 842,245. Joint-making packing. AMES CO., W. R. Oct. 21, 1958 [April 7, 1958], No. 33685/58. Class 122 (3). [Also in Group XXVIII] The cross - section of an annular sealing gasket of elastomeric material for use in a pipe joint comprises a semi-circular radially outer body portion 21, a waist portion 23 defined by axially inwardly extending annular grooves 24, 25, legs 32, 33 extending radially inwardly and axially outwardly from the waist 23, and a radially inner axial surface 30 having an annular, circumferential channel which in crosssection is a circular arc 31 dividing the legs from each other whereby they are free to expand radially outwardly when contacted by a cylindrical member inserted through the gasket. Specification 827,241 is referred to.
Patent GB-1504675-A (GB)
Title: Raster display histogram equalisation
IPC: G06T5/40
Filed: 1976-08-12
Abstract: 1504675 Television HUGHES AIRCRAFT CO 12 Aug 1976 [25 Aug 1975] 33690/76 Heading H4F In a radar, infra-red or television system in which an input video signal contains 64 levels of intensity information whereas a raster display device can only show 12 levels, all elements in a local area (32 lines each of 32 elements) of the raster are analysed as an intensity histogram, Fig. 1a, the histogram is divided into 16 equal areas, Fig. 1b, and a transfer function such as would redistribute the intensity levels along the horizontal axis of Fig. 1b to give the equalized plot of Fig. 1c, is derived and applied to selected elements (central 4Î4 area) of the local area, whereby detail which might otherwise be lost in large generally monotonic display areas may be made visible by expanding the displayed intensity range in such areas. The method above is repeated until the central areas cover the whole raster area (except the periphery). Lines may be processed in lieu of areas.
Patent GB-189663-A (GB)
Title: Improvements relating to portable cooking stoves, kitcheners and the like
IPC: F24B1/182
Filed: 1921-12-15
Abstract: 189,663. Scamp, G. C. Dec. 15, 1921. Convertible close and open fireplaces.-A device which allows a closed range to be used as an open fire by conducting smoke from the opened top of the fire to a register in communication with the chimney comprises a three-sided base A, adapted to be placed over the fire, to which is fixed a tubular portion B the upper end of which is adapted to be inserted in the opening in the smoke-plate D.
Patent GB-1174860-A (GB)
Title: Apparatus for Admixing a Liquid Anaesthetising Agent with Breathing Gas to be Supplied to a Patient
IPC: A61M16/18
Filed: 1967-07-21
Abstract: 1,174,860. Anaesthetic apparatus. O. H. DRAGER [trading as DRAGERWERK HEINR. & BERNH. DRAGER]. 21 July, 1967 [21 July, 1966], No. 33798/67. Heading A5T. Apparatus for mixing a liquid anaesthetic agent into a breathing gas to be supplied to a patient comprises a breathing gas metering device, such as the double acting pump 7, 8, and one or more injection pumps 13, 15, 13', 15' communicating with the metering device for injecting the anaesthetic agent into the device. As shown, the apparatus provides breathing gas from a bottle 1 via a flow gauge 4, a change-over valve 5, a conduit 6 or 6', the metering device 7, 8, a conduit 21 or 21', a valve 22, and thence to the patient, the injection pumps 13, 15, 13', 15' being fed with the liquid anaesthetic from a supply 26 and pumping the anaesthetic through a conduit 16 or 16' into the metering device 7, 8 where it vapourizes and mixes with the breathing gas. The piston 8 of the metering device is moved by the pressure of the gas from the bottle 1 so that the patient is supplied in turn with gas from opposite sides of the piston, there being levers 10, 10', 11 connected to the piston and which move the plungers 13, 13' of the injection pumps and the members 24, 32 of the change-over valves 5, 22. Abutments 18, 18' limiting the movements of the plungers 13, 13' can be moved by a screw device 19, 20, 20', 29 to adjust the amount of anaesthetic in the breathing mixture. The levers 10, 10', 11 include springs 12, 12', 23, and the seats of the valves 5 and 22 may be of magnetic material.
Patent GB-1493690-A (GB)
Title: Optical waveguide connector
IPC: G02B6/36
Filed: 1975-08-14
Abstract: 1493690 Optical fibre connector CORNING GLASS WORKS 14 Aug 1975 [19 Aug 1974] 33862/75 Heading G2J A connector for optical fibres relies upon the engagement of the fibres between the walls of a substantially triangular cavity for locating, centering and gripping the ends in correct alignment. As seen in Fig. 4, a lower member 34 contains a plurality of resilient rods 46 in a channel 40, while an upper member 38 has similar rods 44 in channel 42 (but one fewer in number). When loosely held together as shown individual fibres may be inserted as shown at 80. Tightening of the upper and lower members together causes the rods 44-46 to deform to center and grip the fibres. Single pieces with corrugated surfaces may be used instead of separate rods 46, 44 without departing from the principle. In an embodiment (Fig. 4) both the lower member and the upper member are in two parts (34-60; and 38-58). The lower member extends beyond the upper at both ends. In use:- (i) a fence 82 is located in plane P 1  by lug 84 in hole 88. (ii) individual fibres are introduced into the exposed grooves between rods 46 from the left hand end and slid under loosely attached member 38 until all ends abut the fence. (iii) bolts 54 are tightened and the fence 82 removed. (iv) fibre ends from a different bundle are introduced in a similar manner to the exposed grooves between rods 64 from the right of the Fig. until they abut the fence which has been positioned in plane P 2  on part 58. (v) bolts 78 are tightened and the fence removed. (vi) The ends of the fibres are treated with matching liquid and the parts brought together by engaging lugs 90 in slots 92 and lugs 94 in slots 96. A little longitudinal play is allowed in the fittings to allow close butting of the fibre ends. (vii) the parts are secured by bolts passing through lugs 98, 100.
Patent GB-1071197-A (GB)
Title: Arrangements for suspending a tongs support in forge manipulators
Inventor: KORT ADOLF FRIEDRICH
IPC: B21J13/10
Filed: 1964-08-19
Abstract: 1,071,197. Forging manipulators. SCHWERMASCHINENBAU " HEINRICH RAU" VEB. Aug. 19, 1964, No. 33882/64. Heading B3H. A forging manipulator has its peel 1 resting on resilient pads 6 in front and rear crossmembers 4, 5 pivotally connected by spherical bearings 26, 27 to support rods 2, 3. The resilient pads each comprise upper and lower steel plates vulcanized to a rubber block, Fig. 3 (not shown); the plates are located on the peel and cross members by butt strips. The cross members have projections 14, 15 engaged within grooves 16, 17 on the peel which is also secured to the cross members by studs 20, 33, cup springs 21, 24 and nuts 22, 25.
Patent GB-1013263-A (GB)
Title: Pressure loaded rotary hydraulic pump or motor
Inventor: LOCKETT JAMES HERBERT
IPC: F04C2/08
Filed: 1962-09-04
Abstract: 1,013,263. Gear pumps and motors. BORGWARNER CORPORATION. Sept. 4, 1962, No. 33908/62. Heading FIF. A reversible gear pump or motor comprises a pair of gears 23, 24, Fig. 1, rotatable in bearing means C, D each comprising a member 41 having a pair of parallel bores 42, 43 which are counterbored to receive roller bearings 52 and provide a shoulder 47 adjacent each end cover 11, 13. The end cover 11 is formed with a continuous recess 56, Fig. 3 connected by parallel recesses 62, 61 and 64, 63 to annular recesses 57, 58 respectively which are in turn interconnected by parallel recesses 60, 59. A groove 54 in the end cover 11 interconnects the bores 42, 43 and directs leakage fluid to the low pressure side of the pump or motor. An outer seal 65 and inner seals 66, 67 define isolated chambers 68, 69 connected respectively by cut-away portions J, K, Fig. 4 with ports 36, 35. When operating as a pump with the port 35 the inlet and port 36 the outlet, the low pressure liquid enters the chamber 68 and the high pressure liquid the chamber 69 to urge the bearing means C against a wear plate 37 which in turn is urged against the gears to effectively seal the pump chamber in opposition to the graduated pressure between the gear teeth and the pump casing bores 17, 18. The area of the chambers 68, 69 is such that the pressure of the liquid therein exceeds the summation of the graduated pressures.
Patent GB-630444-A (GB)
Title: An appliance for cleaning floors
IPC: A47L11/30
Filed: 1946-11-15
Abstract: 630,444. Cleaning and polishing floors. LASTOVKA, M. Nov. 15, 1946, No. 33995. [A Specification was laid open to inspection under Sect. 91 of the Acts, April 8, 1948.] [Class 138(i)] Apparatus for cleaning or polishing floors comprises two rollers 4, 5 arranged one behind the other and rotated so that their floor - engaging regions move towards each other, and side members 35 disposed transversely, and adjacent the ends, of the rollers so as to form with the latter an enclosed space on the floor surface within which excess cleaning liquid is trapped. The two rollers, 4, 5 are mounted in parallel relation in a box structure 1, being driven through gearing 9, 8, 7, 6, 14 from a motor 12. The structure, which is mounted on wheels 29 in vertically adjustable holders 30, is provided at the front with a brush or strip 31, preferably inclined to the axes of the rollers. The cleaning fluid is contained in a tank 2 which is fitted with a filter 28 and may be heated and jacketed. Pipes 17, 19 controlled by a valve 18 lead the fluid to a chamber 20 having ducts 21 discharging in front of the roller 4. Each roller is mounted beneath an arcuate canopy 15 which deflects liquid swept from the floor by the rollers into a channel 22 leading to a channel 23. A pump 13 driven by the motor 12 discharges the fluid from the channel 23 to the tank 2, filters 24, 27 being provided in the circuit. In a modification (Fig. 4, not shown), the axes of the rollers are inclined to each other, and a strip is disposed between the rollers in contact with the floor for the purpose of deflecting the fluid to a suction pipe at one side of the machine. The rollers 4, 5 may consist of hair, rubber strips, or pads of fabric or felt, and may be removable. The front roller may be of harder material than the rear roller, and may be of smaller diameter and rotated at a slower speed. The machine may be fitted with an electric heater or hot-air blast producer for drying the floor after it has been cleaned, and it may also be used for polishing the floor, the polish being fed on to the floor in front of the leading roller, and the surfaces of one or both rollers being formed of appropriate material. The surfaces of the side strips 35 may be in the form of brushes, rubber strips or rubber blocks.
Patent GB-458625-A (GB)
Title: Improvements in cores for use in the moulding of hollow articles of concrete and the like, and the method of employing same
IPC: B28B7/32
Filed: 1935-12-09
Abstract: 458,625. Moulding conduits in situ. MATHEWS, C. B., Lobs Wood, Middleton, Ilkley, Yorkshire, and AMBROSE, J. G., Oak Trees, Clare Hill, Esher, Surrey. Dec. 9, 1935, No. 34018. [Class 20 (ii)] [See also Group V] A non-circular core for use in moulding hollow concrete articles, floors, walls, ceilings, &c. comprises an inflatable tube of indiarubber or fabric impregnated with balata, the tube being surrounded with two or more covers of flexible, inextensible material such as cotton, canvas, or leather. As applied to the moulding of monoliths, the core comprises a rubber tube 2, Figs. 2 and 3, folded on itself and provided with a cover 3, a further cover 3a surrounding the covered tube and being provided with a detachable cover 5. In use, the core is placed in a mould 20, one of its ends projecting through an aperture in a partition in the mould. Fluid pressure is applied to the core, and concrete is poured into the mould. When the concrete has set, the core is deflated and withdrawn from the resulting cavity leaving the outermost cover 5 which is, in turn, removed by a flexible tape 12 secured to its inner end. Walls are made by suspending a series of the cores between planks and filling in the concrete. Metal binding pieces t, Fig. 6, and solid portions s between the cavities may be provided. In making floors and ceilings, the cores extend at one end laterally of the mould, so that, when the concrete has set, they may be removed. The resulting holes leading to the cavities are then filled in.
Patent GB-991369-A (GB)
Title: Improvements in planographic printing plates
IPC: C08F20/56
Filed: 1961-09-22
Abstract: 991,369. Planographic printing plates. OXFORD PAPER CO. Sept. 22, 1961 [Nov. 21, 1960], No. 34052/61. Heading B6C. A planographic printing plate is made by applying to a base a coating composition comprising a pigment mixture containing colloidal silica of particle size up to 30 millimicrons and a copolymer prepared by copolymerizing a hydrophilic monomer with a minor amount of an oleophilic monomer and cross-linking the copolymer in the presence of the pigment to cure the copolymer and form an insoluble hydrophilic-oleophilic coating on the base. The base may be paper. The copolymer may be methylolated before it is reacted and a cross-linking agent may be present. The colloidal silica may comprise 10 to 50% of the total pigment mixture. The oleophilic monomer may be in amount 5 to 50% by weight of the total amount of the oleophilic plus hydrophilic monomers. Suitable materials are listed in the Specification.
Patent GB-783191-A (GB)
Title: Improvements in or relating to catches or like fastenings
Inventor: BEISHON ARTHUR ROBSON
IPC: E05C19/14
Filed: 1954-11-24
Abstract: 783,191. Hasp fastenings. WILKES BERGER ENGINEERING CO., Ltd. Feb. 23, 1956 [Nov. 24, 1954], No. 34089/54. Class 44 A catch, incorporating a toggle mechanism, comprises a link 24 mounted on an operating lever 19 and engaging a fixed member 11, the link being frictionally pivoted to the operating lever so that movement of the lever produces a corresponding movement of the link. In the preferred embodiment, the sides 20 of the operating lever 19 are pivoted 18 to lugs 17 projecting from the base plate 12. The sides 26 of the link 24 straddle the sides 20 of the operating lever and are attached thereto by the pivot 27 which frictionally grips the link and the lever so that movement of the lever results in a corresponding movement of the link. The hooked end 25 of the link engages the inclined surface 16 of the member 11 and is locked in position by movement of the operating lever into an over dead centre position. A spring 22 passes between the pivot 18 and the upturned end 23 of the plate 12 and is clamped by the curled end 21 of the lever 19 so as to urge the lever downwards into the locked position. In another embodiment the plate 12 and the base of the member 11 are extended to engage the edges of the lever 19 and the link 24 respectively when in the locked position, Figs. 5, 6 (not shown).
Patent GB-1100923-A (GB)
Title: Improvements in or relating to power transmission mechanisms
IPC: F16H29/08
Filed: 1965-08-10
Abstract: 1,100,923. Variable-speed ratchet gears. C. O. TOWLER. 27 July, 1966 [10 Aug., 1965], No. 34100/65. Heading F2D. A variable-speed ratchet gear comprises an input shaft 1 driving a crank 3 and a series of connecting rods 5 which oscillate primary cranks 8a each mounted in bearings 9, 11 and carrying a rod 8b along which is movable a bearing member 26 at one end of a secondary oscillating member 17 mounted on a layshaft 12 and driving the output shaft 16 through a sprag clutch 18 and spur pinions 21, 16a. The drive ratio is varied by rotating a casing 7 by worm gears 40, 41 to vary the position of the bearings 26 along rods 8b, no drive being transmitted when bearings 26 are coaxial with the associated cranks 8a.
Patent GB-488786-A (GB)
Title: Improvements in or relating to the automatic control of variable physical quantities
IPC: G05B11/01
Filed: 1936-12-11
Abstract: 488,786. Fluid-pressure servomotorcontrol systems. CALLENDER, A., STEVENSON, A. B., and IMPERIAL CHEMICAL INDUSTRIES, Ltd. Dec. 11, 1936, No. 34129. [Class 135] [Also in Group XXXV] In systems for the automatic control of a variable quantity wherein a reversible electric or hydraulic servomotor operates correcting means, two relatively movable members control the motor, one being displaced according to changes in the quantity and the other in proportion to the correcting effect and being returned gradually to a predetermined position after any displacement by a spring or springs associated with a damping device. The " throttling zone " is thus eliminated. Fig. 1 shows temperature responsive bellows 19 operating contacts 16, 17 on a rod 18 which co-operate with a contact 15 to control a reversible motor 3 adjusting a valve 2 to correct any variation in temperature. A cam 4 causes rod 6 to move a lever 7 carrying the contact 15 a distance corresponding to the correction effect and springs 13, 14 subsequently return the contact to its original position at a rate determined by a dash-pot 10. The rod 6 may operate through a spring upon the upper end of the lever 7, which is restrained by a further dash-pot. Fig. 3 shows a modification in which the contact 15 is carried by a dash-pot 34 and the lever 7 operates on a point between springs 31, 32 secured to a fixed abutment and to the contact respectively. As shown in Fig. 6 the rod 6 carries an electromagnet 51 energized during the operation of the motor 3, thus moving an armature 53 carrying the contact 15 against the action of springs 13, 14. The return of this contact is damped by a fan 56 driven by a rack on the armature 53. The motion of the companion contacts 16, 17 may also be subject to control by springs and damping means. Thus the temperature sensitive element may operate upon an intermediate point in a lever, the ends of which are attached to springs and also, respectively, to a dash-pot and to the contacts 16, 17. Fig. 5 shows a modification of this wherein the lever 41 is controlled by a spring 50 at the end opposite to the contacts 16, 17 and the dash-pot 45 is connected to the lever between this spring and the temperature sensitive element 19. The contacts may be replaced by members operating upon a hydraulic servomotor. The apparatus may comprise means for varying the length of the rod 18 carrying the contacts 15, 16 or the position of the base of bellows 19 so as to cause the value of the variable to vary in accordance with a time schedule. Specifications 440,115 ; 453,602, and 458,176, [both in Group XXXV], are referred to.
Patent GB-172989-A (GB)
Title: Improvements in storage batteries
IPC: H01M50/103
Filed: 1921-12-19
Abstract: 172,989. Soc. de l'Accumulateur Tudor. Dec. 18, 1920, [Convention date]. Supports for electrodes; cells.-Electrodes of storage batteries are supported by bars 4 which rest on ledges 1 projecting at intervals from the side walls of the container. The bars 4 may be of glass and may be in one length or divided into sections. The Specification as open to inspection under Sec. 91 (3) (a) states that the ledges 1 may extend downwards to the bottom of the container. This subject-matter does not appear in the Specification as accepted.
Patent GB-605295-A (GB)
Title: Improvements in or relating to electrical connections
IPC: H01R39/64
Filed: 1945-12-19
Abstract: 605,295. Swivelling couplings. DAVIS, J. O. and WRIGHT, C. S. Dec. 19, 1945, No; 34414. [Class 38 (i)] A device for making contact between fixed and rotating conductors includes a cage' member with angularly spaced recesses containing balls or rollers urged against the rotating member by a resilient member surrounding them. The device shown is for connecting a rotatable cable 23 having two concentric conductors to a similar but stationary cable (not shown), lead into the housing 12 at right angles to cable 23 its two conductors being connected respectively to ball races 14 and 1 respectively, the former being supported on insulators 13 and the other being at earth potential. These races house sets of balls 4 urged by garter springs 5 against sleeves 24, 26 to which the two conductors of rotary cable 23 are connected. The balls may be replaced by rollers.
Patent GB-470321-A (GB)
Title: Improvements in and relating to smokers' ash trays or receptacles
IPC: A24F19/14
Filed: 1936-12-15
Abstract: 470,321. Cigar and cigarette extinguishers. ABRAMOVIC, J. Dec. 15, 1936, No. 34457. Convention date, Jan. 10. [Class 130] A cigar &c. extinguisher in one form, Fig. 1, has a cylindrical cavity 1 below which is a tapered solid plug 7 fitting in a cavity in the rim of an ash-tray or receptacle. In a modcfication, Fig. 3, the cylinder 1 is pivoted at 3 in uprights 2 and can be tilted towards the ash-tray, turning in the other direction being prevented by shoulders 6. In a further form, Fig. 4, an extinguisher having two or more cavities 1 is mounted on a spindle 3 turned by an external knob 4.