baber/WOPTO huggingface dataset:
Patent GB-983756-A (GB)
Title: Synthetic zeolites and process of preparing the same
IPC: C01B39/02
Filed: 1961-10-18
Abstract: An acid stable synthetic zeolite having the mordenite crystal structure and the formula (Na1K1Ca/2)2Al2Si9-10O22-24 (A2O)0-6.7 and being capable of absorbing molecules having a size larger than 5<\>rA, which is claimed per se, is produced by heating a mixture containing a water-insoluble source of silica and aqueous alkali metal silicate at a temperature less than 190 DEG  C. for a time sufficient to prepare the zeolite.  The mixture is preferably heated under autogeneous pressure and saturated vapour pressure.  The source of silica is preferably a volcanic glass such as pumice.  If the source of silica is amorphous silica a water-soluble aluminate is also present during heating. The zeolite may be subsequently hydrolysed to yield an acid stable synthetic mordenite having the formula H2Al2Si9-10O22-24(H2O)0-6.7, capable of absorbing molecules having a size larger than 5A DEG , which is also claimed per se. The hydrolysis is suitably carried out using IN. HCl.  The mordenites of this will absorb n-heptane, benzene and cyclohexane in signicant amounts.
Patent GB-1198314-A (GB)
Title: Limited Slip Differential Oil
Inventor: CLAXTON PAUL DESMOND
IPC: C10M135/02
Filed: 1967-08-15
Abstract: 1,198,314. Differential gear oil. BRITISH PETROLEUM CO. Ltd. 13 Aug., 1968 [15 Aug., 1967], No. 37381/67. Heading C5F. A limited slip differential gear is lubricated with an oil containing up to 15% by wt. of sulphurized oleic acid dissolved therein. The oil may be a mineral oil and may also contain an E.P. additive, e.g. zinc dialkyl dithiophosphates and a polymethacrylate pour-point depressant.
Patent GB-760307-A (GB)
Title: Improvements in or relating to electrical information storage circuits and devices
IPC: G11C11/06
Filed: 1954-12-24
Abstract: 760,307. Electric digital-data-storage apparatus. WESTERN ELECTRIC CO., Inc. Dec. 24, 1954 (Dec. 31, 1953], No. 37397/54. Class 106 (1). [Also in Group XXXIX] An information-storage device comprises a plate of magnetic material formed with an array of holes through which pass wires to enable the material in the vicinity of any hole to be magnetized in one sense or the other so as to constitute a storage element. Each hole is threaded by at least three, say p, wires by which storage and re-setting may be effected, each of these wires belonging to a different group of wires and no pair of the wires passing together through any other hole. Storage in, or re-setting of, a given element is effected by applying to each of the groups of wires passing through that hole 1 equal current pulses of a magnitude - of the p total current required to switch the element. No other element receives more than one current pulse so that the disturbing effect on other elements is very small. As shown, a magnetic sheet 20 is formed with a 5 x 5 array of holes, each of which is passed by four storage and re-setting wires and one read-out wire which is common to all holes. The sheet which may be laminated is secured between two similarly perforated insulating plates 23, 24 formed also with holes 27, to enable wires to be passed around the edge of the magnetic sheet, and carrying terminals 28. The number of possible groups of wires and their arrangement are determined generally for a n x n matrice and the physical dimensions and optimum operating conditions are discussed.
Patent GB-1313936-A (GB)
Title: Capacitive transducers
IPC: H04R19/00
Filed: 1970-08-04
Abstract: 1313936 Capacitor transducers MARCONI CO Ltd 4 Aug 1970 [4 Aug 1969] 37451/70 Heading H4J In a capacitor transducer at least one capacitor plate (e.g. the back plate) comprises a body of sintered particulate material susceptible to anodic oxidation and on one rough side of the body, is formed an anodically oxidized layer, also rough. The material may be aluminium or tantalum and the oxide layer may be an electret. The capacitor plate may be a composite body and the anodically oxidized side may be provided with a layer of greater chemical purity than the remainder. The very pure material may be provided by suitable placement of very pure particles and commercial purity material into the sintering fixture. Alternatively the very pure matrial may be provided by evaporation on to the appropriate surface. Preferably the plate is formed of granular material of known size so that a desired surface roughness and the length of communicating holes can be predetermined. If it is desired to trap air within the sintered block the side of the plate opposite the oxide layer may be sealed with a layer of wax, lacquer or a film of synthetic material or such side may be in close contact with the transducer casing. In a noise cancelling arrangement a diaphragm moves differentially between fixed front and back plates, both as described above.
Patent GB-791877-A (GB)
Title: Improvements in or relating to kilns for the manufacture of white calcium cyanamide
Inventor: KAESS FRANZ
IPC: F27B1/00
Filed: 1955-12-30
Abstract: A vertical kiln for the manufacture of white calcium cyanamide from line and gaseous carbon and nitrogen compounds, such as hydrogen cyanide, and/or a mixture of carbon monoxide and ammonia, comprises superposed reaction chambers 5 and 7 separated by an eddy plate 6 and joined by a duct 11 incorporating valves 12 and 13, inlet ducts 1 and 3 for carbon monoxide and ammonia respectively disposed below a lower eddy plate 4, and a valve-controlled inlet 9 for powdered lime in the upper chamber 7.  The latter has a widened upper section from which extends an offtake 8 for spent gases, and a valve-controlled duct 14 discharges reacted material from the chamber 5.  Openings 16 and 17 for thermocouples, and peep-holes 18 and 19 are formed in the respective reaction chambers.  The plates 4 and 6 are formed with slots, perforations, &c., and are <PICT:0791877/III/1> made of ceramic material, preferably having a high alumina content.  Hydrogen cyanide may be mixed with the ammonia supplied through duct 3, and the residual gas may be recycled.  The reaction gases are preheated up to reaction temperatures in electrically heated ceramic chambers. After a predetermined residence in chamber 7, the partially reacted line is fed through the lock formed by valves 12 and 13 in duct 11 into chamber 5.
Patent GB-981420-A (GB)
Title: Improvements in the manufacture of phosphorus
Inventor: LOWE EDWARD JAMES
IPC: C01B25/047
Filed: 1961-10-19
Abstract: White phosphorus is purified by distillation at a pressure of 20-400 mm. and a temperature between the m.p. of phosphorus and 200 DEG  C. in the presence of an inert gas.  The impure phosphorus may have been obtained by the electrothermal reduction of phosphate ore and may contain 100-200 p.p.m. of arsenic.  The inert gas may be steam, nitrogen, carbon monoxide, or residual gas from a phosphate reduction furnace.  The temperature of distillation must be below 180 DEG  C. when steam is employed. The purified phosphorus may be condensed as a liquid in water.  As shown, inert gas admitted through lines 16 and 17 is passed through liquid phosphorus in a steam jacketed vessel 10. The phosphorus evolved is passed into a fractionation column 13 fed with water through a line 24 and is separated into an arsenic-rich liquid phosphorus fraction which drains off through a line 26 and an arsenic-poor vaporous phosphorus fraction which passes through a line 27 to a condenser 14 having a reduced pressure line 33 and fed with water through lines 28 and 29. The purified phosphorus is recovered as a liquid phosphorus-water mixture from a line 32. Residual solid is removed from vessel 10 by dispersing in warm water fed through line 15 by means of a stirrer 12.  In another embodiment (Fig. 2, not shown), a steam-jacketed climbing film evaporator, followed by a liquid separator and a condenser, is employed.  A number of evaporators in series may be employed. <PICT:0981420/C1/1>
Patent GB-846817-A (GB)
Title: Improvements relating to machines for cutting bevel gears and the like
IPC: B23F9/10
Filed: 1958-11-21
Abstract: 846,817. Gear-cutting. GLEASON WORKS. Nov. 21, 1958 [Nov. 22, 1957], No. 37516/58. Class 83 (3). A gear-cutting machine comprises a workspindle 14 intermittently indexed by a drive train having several intergeared shafts, one of which, 38, is adjacent the spindle and is positioned angularly in a predetermined position subsequently to being rotated through a predetermined angle after each indexing operation. The invention is applied to a machine for generating or form-cutting bevel gears, the angular positioning means being operative only for form cutting. For generation, a motor 16 rotates the cutter C on a cradle 11, and also rocks the cradle through a reversing gear 51 so that teeth are generated in one direction of roll and indexed on the return roll. The gear is indexed by a pin 56 continuously rotated by the motor 46 through a shaft 53, the pin being moved by a cam 62 to engage a slotted disc 57. The indexing means is locked by a pin controlled by a cam 66. Backlash is taken up by a friction brake 67. When the machine is used for formcutting gears, the cradle is moved axially between tooth-cutting operations, or a gapped cutter is used to allow indexing to take place. A cam 68, which rotates twice at each indexing operation, is engaged by a pawl 69, this pawl being held inoperative during generation, by a screw 77. At the end of an indexing operation, the pawl 69, forced downwardly by a spring- pressed plunger 73, inches the cam 68 round until a stop-nut 75 engages the plunger housing. Any inaccuracy in setting of the work due to strains in the indexing train is thereby obviated. A device 82, 87, which replaces the ratio of roll change gears, is provided, whereby the cam 68 can:be adjusted relatively to the disc 57. The work islocked between cuts by an hydraulic clamp 91 acting on a flange 95, and operated by piston valve 106 controlled by the indexing gear, this clamp also being inoperative during generation.
Patent GB-1498919-A (GB)
Title: Furanose-o-pyridylcarboxylic acid esters
IPC: A61K31/7024
Filed: 1976-09-10
Abstract: 1498919 Furanose esters CIBA-GEIGY AG 10 Sept 1976 [12 Sept 1975] 37622/76 Heading C2C The invention comprises compounds of formula wherein one or more of R 1 , R 2 , R 3 , R 5  and R 6  is pyridylcarbonyl and the others are H, up to C 7  alkyl or alkenyl, or aryl-C 1-7 -alkyl, or the analogous pyridylcarboxylic acid esters in which H replaces OR 1 . These compounds are prepared by either (a) forming the ester group(s), or (b) splitting the dioxole ring in the corresponding 1,2-isopropylidene compounds with EtOH/HCl, when one of the protected OH groups is simultaneously etherified. Therapeutic compositions having antiinflammatory, antirheumatic and antineuralgic activity comprise compounds of the above formula. They may be administered orally or topically.
Patent GB-1527512-A (GB)
Title: Apparatus for particle study
IPC: G01N15/12
Filed: 1975-09-15
Abstract: 1527512 Particle analyzing systems COULTER ELECTRONICS Ltd 15 Sept 1975 [16 Sept 1974] 37794/75 Heading G1N A particle analyzing system of line type shown in Specification 1249470 for measuring mass median is adapted to measure number of population median as well. Particle pulses developed by an aperture type scanner 10 are applied to a variable threshold circuit 20 and a delayed precision pulse shaping circuit 22. In this latter circuit pulses from pulse stretcher 28 are gated via switch 30 to an output line 34 by means of a constant duration pulse from one shot multivibrator 40 triggered by the trailing edge of a pulse from scanner 10 which exceeds a noise threshold set by circuit 32. The two outputs from circuit 22, that on line 34 being a succession of pulses of known duration and amplitude proportional to size and that on line 78 a succession of pulses of constant width and amplitude each pulse representing one particle, are applied to respective terminals 41a, 41b of a switch 41. If the switch 41 is in contact with 41a the pulses on line 34 are applied either to an "UP" switch 42 or "DOWN" switch 44 in dependance on whether the pulses are greater or less than the threshold set by circuit 20, switches 48 and 71 being enabled or disabled by a pulse from switch control circuit 46 in dependance on whether the pulse from detector 16 is less than or greater than the threshold. The outputs from the UP and DOWN switches are fed to a summing circuit 52 in comparison circuit 54 i.e. a negative charge from DOWN switch and a positive charge from UP switch. From the summing circuit the charge is fed to integrator 56 so that the output of the latter is the algebraic sum of the charges which is fed back via line 72 to adjust the threshold of variable threshhold circuit 20 to a level so that the particle pulses cause an equal number and amplitude of positive and negative charges to be accumulated i.e. the feedback voltage at equilibrium represents the mass median or any other mass percentile dividing size. When switch 41 is moved to terminal 41b equilibrium is reached when the number of particles above a certain size are the same as those below the size as set by the threshold circuit 20. If the particulate system being examined has a very wide range of particulate distribution a plurality of channels are used, Fig. 2 (not shown) each channel representing a certain range being substantially as shown in Fig. 1.
Patent GB-1125192-A (GB)
Title: Filter assembly for fluids
IPC: B01D29/00
Filed: 1965-09-03
Abstract: 1,125,192. Gas filter. AMERICAN AIR FILTER CO., Inc. 3 Sept., 1965 [1 Oct., 1964], No. 37823/65. Heading BIT. A web of glass fibre is supported in a rectangular frame, made of cardboard and having sets of parallel ribs which abut the downstream face of the web and maintain its pleated form. In Fig. 2 ribs 58, 63 are initially adjacent areas of the central panel 3 of a blank (Fig. 1, not shown) which is cut and folded to raise ribs 63 from the plane of panel 3 providing passages 55 therethrough, and peripheral panels 9, 11, 12, (13) are subsequently folded and glued or stapled to form the periphery of the frame. The web (not shown) is then glued in place. In Figs. 6-8 (not shown), one set of ribs is formed by areas of the central panel (103) from which upstanding separate trapezoidal tabs (169) are pressed whose slotted apices then receive separate ribs (172) which are later attached to the frame periphery. In Figs. 9-12 (not shown) the central panel (203) of the blank has multi-slotted areas (267) separated by parallel unslotted areas (268), and areas (267) are pressed and thereby expanded to form upstanding ridges of hexagonal openwork structure. In Figs. 13-19 (not shown) the central aperture in a frame is bridged by one set of parallel ribs (306) of V-section and by another set of ribs which each comprise alternate trapezoidal sections (312) extending perpendicular to straight portions (309). The latter ribs are made by transversely folding cardboard .strips (307) and they are attached in the frame with the wide ends of sections (312) nesting in ribs (306), to support a web (380) whose pleats extend perpendicularly to ribs (306).
Patent GB-1178069-A (GB)
Title: A Cleaner Device for Cleaning Residue from the Cutting Edge of a Rotary Disc Type Cutter
IPC: A24C5/28
Filed: 1968-08-08
Abstract: 1,178,069. Cigarette-making machines. PHILIP MORRIS Inc. 8 Aug., 1968 [5 Sept., 1967], No. 38008/68. Heading A2C. A device for cleaning the side faces surfaces adjacent the cutting edge of a rotary disc cutter 14, e.g. the cutter of a continuous filter rod cut-off, comprises a mounting block 38 spaced radially outwardly from the cutting edge of the cutter 14, a blade holder 44 connected with and extending inwardly from the mounting block 38 in the direction of the cutter 14, a pair of generally flat, flexible cleaner blades 60, 62 carried on the holder 44 and extending therefrom along opposite side faces of the cutter 14, each blade 60, 62 having a dressing edge spacedly confronting a portion of the surface of a corresponding face adjacent the cutting edge of the cutter 14, the holder 44 being rotatable on the block 38 about an axis perpendicular to the axis about which the cutter 14 rotates whereby rotation of the holder 44 in each of two opposite directions moves the dressing edges of the respective blades 60, 62 into cleaning position wherein they contact the corresponding faces of the cutter 14. The blades 60, 62 are adjustably held in slots (64, 66) in the holder 44 by means of set screws 70 and chamfer ended plugs 74. The holder 44 also includes a cutter disc entry slot 120 and is fixed to a shaft 46 which extends through a sleeve 48 retained in a bore in the block 38. A slot 56 in the shaft 46 carries a blade spring 86 which spring biases the holder 44 in a neutral position with neither blade 60, 62 in contact with the cutter disc 14. Rotation of the holder 44, to bring one or other of the blades 60, 62 into contact with its respective side of the cutter disc 14, may be effected manually by means of a handle (98) attached thereto or automatically by means of an air cylinder unit (155). The lower end of the block 38 may be bored to connect an opening 112 with a fitting 114 that carries a flexible conduit (116) for supplying a cooling medium to the cutter disc 14. Where a cooling medium system is not used, a vacuum cleaning arrangement (Fig. 8 not shown) may be used for gathering the scrapings removed in the cleaning operation.
Patent GB-897307-A (GB)
Title: Apparatus for the automatic winning of coal by means of a coal plough or other coal winning machine guided on a shiftable conveyor
IPC: E21F13/10
Filed: 1958-11-26
Abstract: 897,307. Mineral - mining apparatus. GEWERKSCHAFT EISENHUTTE WESTFALIA. Nov. 26, 1958 [Dec. 20, 1957], No. 38167/58. Class 68(1). In a mineral-mining apparatus comprising a plough 13 or similar winning machine moving along a shiftable conveyer 12 extending along a long wall face of a mine the conveyer is supported from the floor at one or both ends or at points intermediate the ends on beams 18, 20 secured to the underside of the conveyer. Each beam is connected by a jack 34, 35 to a further, adjacent, parallel beam 19, 20. At the ends of all the beams are provided telescopic roof-engaging props 18a, 18b-21a, 21b. Setting of appropriate props and suitable operation of the jacks results in advance of the conveyer towards the face. Supported on the leading prop 19b, 20b, or directly on the front of the beams 19, 21 are horizontal guide rails 22, 23 on which slides a carriage 24 carrying vertical guide rails 27, 28 for a cutting unit 29 having one or more cutter discs 30, 31 lying in a plane parallel to the conveyer. This cutting unit is used to cut out a stall 11 at the end of the face.
Patent GB-810252-A (GB)
Title: Cushioned support composed of foamed plastic for chairs, sofas, mattresses and the like
IPC: A47C7/20
Filed: 1956-12-14
Abstract: 810,252. Upholstery. BRETTENBORN, E. Dec. 14, 1956 [Dec. 16, 1955; Jan. 3, 1956; April 16, 1956], No. 38177/56.. Class 52(4) In resilient upholstery or mattress &c. laminae 1 of expanded synthetic material and having apertures 2 are secured side by side by a thin strip of adhesive on each or may be threaded on spiral springs 3 anchored to a framework 4. In a modification Fig. 6 strips are interconnected on their end faces and wound about a core 5. Alternatively a single strip may be wound spirally.
Patent GB-971355-A (GB)
Title: Improvements in or relating to frictional contact elements
IPC: F16C33/04
Filed: 1962-10-09
Abstract: 971,355. Bearings. J. J. CAUBET. Oct. 9, 1962 [Oct. 10, 1961], No. 38268/62. Heading F2A. [Also in Division E2] A bearing assembly, or a ball-and-socket assembly, consists of a member which is wholly or partly of synthetic resin and a second member which is ferrous and has been nitrided in a bath of melted cyanates and/or cyanides. The first member may be bronze coated with a layer of synthetic resin, and the resin may be P.T.F.E. or a phenol-plastic resin.
Patent GB-852752-A (GB)
Title: Improvements in motor driven rotary percussion apparatus
IPC: B25B21/02
Filed: 1957-12-10
Abstract: 852,752. Screwing-up and unscrewing screws &c. BOSCH G.m.b.H., R. Dec. 10, 1957 [Jan. 8, 1957], No. 38303/57. Class 83 (3). [Also in Group XXIV] An impact-wrench or screwdriver comprises a rotary-hammer 19 driven from a motor 2, 3 by a shaft 17, an anvil 18 connected to a socketwrench &c (not shown), interengaging-claws 23, 24, on the hammer and anvil, and a frictionclutch 50, 51, in the drive between the motor and shaft 17, the hammer lagging behind the shaft upon increase in torque-demand and moving away from the anvil; against the influence of a spring 35 under compression, to disengage the claws 23, 24, and a rotary-blow being struck by the claw 24 upon return of the hammer by spring 35. A ball 30 in a pocket 31 in the hammer and in a V-shaped slot 29 in the shaft 17, drivingly connects the hammer and the shaft, which bears at one end in the anvil and at the other in a gear 16 freely rotatable on the shaft and driven from the squirrel-cage electric motor by gears 13-15. The hub 45 of gear 16, forming the driving element of the friction clutch, has three equallyspaced axial grooves 55 receiving keys 54 on clutch-plates 51 stacked alternately with clutchplates 50, each of which has three outwardlydirected keys 52 engaging axial grooves 56 in the base 44 of the clutch-housing 32, which is keyed to shaft 17. The spring 35 loads the clutch through a ball-race 34 and a pair of pins 38, and acts on the hammer, camming the ball 30 to the apex of the groove 29. Displacement of the anvil, against the pressure of a spring 25, carries the claw 23 into the path of the rotating-claw 24 during operation of the tool. An increase in torque-demand reduces the speed of the anvil-and-hammer, thus causing the ball 30 to travel along the groove 29 from the apical position depicted, and disengagement of the claws. The spring 35 then returns the hammer, accelerating it until the ball resumes the apical position, and a rotaryblow is struck when the claw 24 again contacts claw 23.
Patent GB-1019037-A (GB)
Title: An improved process for liquid purification
IPC: C13B20/14
Filed: 1963-10-01
Abstract: 1,019037. Ion-exchange. G. ASSALINI, and G. BRANDOLI. Oct. 1, 1963 [Oct. 6, 1962], No. 38508/63. Heading B1J. An ion-exchange process with suitable regeneration and washing is carried out in a plurality of rotating containers which are timed to halt for periods sufficient for any particular stage of the process to be complete for any one container. The containers for ionexchanger 5 rotate on structure 3 by intermittent movements governed by timer (not shown). Each container has a support for exchanger 8, discharge pipe 10 leading to launder 12 and a feed distributer 11 also subject to the timer in respect of the liquid fed thereto. Backwashing is achieved by coupling to discharge pipe 10 and discharge through pipe 14 and launder 15.