baber/WOPTO huggingface dataset:
Patent GB-803203-A (GB)
Title: 1-ethynyl-cyclohexyl ethyl carbonates
IPC: C23F11/04
Filed: 1957-07-19
Abstract: The invention comprises compounds of the general formula <FORM:0803203/IV (b)/1> wherein one of the R symbols represents methyl or hydrogen and the remaining R symbols represent hydrogen, and also the manufacture of the compounds by the reaction of ethyl chlorocarbonate with an alkali metal salt of 1-ethynyl cyclohexanol or of a ring-substituted methyl derivative thereof.  The new compounds, which are liquids, may be used as toxic constituents in dust and spray compositions to be used as weed-killers; they are also useful as corrosion inhibitors in acid solutions.  In Example 1, 1-ethynyl cyclohexanol is added portionwise to a dispersion of sodium in benzene at 70 DEG  C.  Ethyl chlorocarbonate is then added to the dispersion of the sodium salt at the boiling-point and under reflux. After standing overnight at room temperature, the reaction mixture is washed with water and thereafter fractionally distilled under reduced pressure to separate the 1-ethynyl cyclohexyl ethyl carbonate.  In Example 2, acetylene is bubbled through a solution of sodium amide in liquid ammonia to produce a solution of sodium acetylide.  A solution of 2-methyl cyclohexanone in toluene is then added to the solution of sodium acetylide at the boiling temperature of liquid ammonia under atmospheric pressure.  During the addition, acetylene is bubbled through the reaction zone.  The ammonia solvent is next evaporated off; and a solution of ethyl chlorocarbonate in toluene is added to the residue.  The product is washed with water and then fractionally distilled under reduced pressure to separate 1-ethynyl-2-methyl cyclohexyl ethyl carbonate.  A further example relates to the preparation of 1-ethynyl-4-methyl cyclohexyl ethylcarbonate.
Patent GB-690639-A (GB)
Title: A carrier for small livestock
IPC: A01K1/02
Filed: 1950-09-19
Abstract: 690,639. Livestock carriers. PARKER. F. L. Dec. 17, 1951 [Sept. 19, 1950], No. 22985/50. Class 5(ii) A livestock carrier which may be used as a show case is provided with a ventilated base, back and ends and a transparent front panel 20 such as that known under the Registered Trade Mark "Perspax." Similar material is used for the handle. 17, and a hinged or sliding door 12 is provided in one of the end walls. Strips 24 cover the panel edges.
Patent GB-721402-A (GB)
Title: Roasting of sulfides
Inventor: ROBERTS ELLIOTT JOHN
IPC: C01B17/52
Filed: 1952-09-12
Abstract: Sulphur dioxide substantially free from sulphur trioxide and sulphur is produced by roasting finely divided iron sulphide-bearing material, e.g. at 800 DEG C., in a fluidized bed by means of a free oxygen-bearing gas, to produce a gas comprising sulphur dioxide and sulphur, discharging roasted particles containing a minimum of 2 per cent, preferably of 4-6 per cent, by weight of sulphidic sulphur from the bed and supplying oxygen to the gas to convert sulphur to sulphur dioxide, overoxidation of the gas being prevented by the presence of entrained iron-bearing compounds therein.  In one described embodiment illustrated by Fig. 1, the sulphide-bearing material is fed to a bed 17 from hopper 43 and roasted autogenously in a fluidized condition by a gas entering through porous grate 31.  The gases rising from the bed and containing entrained iron compounds are passed to a cyclone 70 by means of a pipe 63 into which air or oxygen is introduced to convert sulphur present therein to sulphur dioxide. The solids separated by the cyclone may if desired <PICT:0721402/III/1> be returned to the lower fluidized bed 18 into which the partly roasted solid overflows.  This bed is fluidized by means of air entering at 47 and sulphidic materials are completely oxidized with formation of gases which are used to fluidize the upper bed. In a second embodiment the lower bed is replaced by a conventional sintering machine e.g. of the moving grate type and the gases from the sintering containing sulphur vapour and sulphur trioxide, are used with additional air to fluidize the first stage of the process.  Cooling of the bed in which partial roasting takes place may be by means of water entering by means of a spray head 27 or by a coil immersed in the bed.
Patent GB-833915-A (GB)
Title: Improvements relating to shock-absorbers for vehicles
IPC: F16F9/06
Filed: 1958-07-18
Abstract: 833,915. Pneumatic shock absorbers. RECHERCHES ETUDES PRODUCTION R. E. P. July 18, 1958 [Nov. 26, 1957], No. 23126/58. Class 108(3) In a vehicle shock absorber, the movement of a piston 2 within a cylinder 1 is damped by the passage of air from a chamber 10 to a chamber 9 through an orifice 11. Damping is also provided by a film of viscous liquid which fills a space 6. This film is maintained by liquid from a space 7 passing through holes 8. The damping effect may be made asymmetrical by incorporating means by which the crosssection of the passage available to the compressed air is greater in one direction of movement of the rod 2 than in the other.
Patent GB-1220949-A (GB)
Title: A tube bending device
Inventor: TROYANSKI C
IPC: B21D11/08
Filed: 1968-05-15
Abstract: 1,220,949. Bending tubes. PINES ENG. CO., Inc. 15 May, 1968 [24 Jan., 1968], No. 23165/68. Heading B3E. A device for bending tubes by thinning an outside portion of a tube to produce a curve comprises a pressure roller 13 rotatably mounted in and projecting radially from one side of a head 11 capable of rotating inside the tube 5, at least two back-up rollers 42 rotatably mounted in said head and projecting radially from the opposite side of said head, said pressure roller and back-up rollers being positioned on the head for bearing against opposite portions of the inner surface of the tube, an eccentric shaft 12 carrying a roller 19 on the eccentric portion 18, roller 19 being in continuous surface contact with roller 13 and operating to successively increase and decrease the distance between the axes of the pressure roller and the back-up rollers during each revolution of the head so as to generate the outer arc of curvature of said tube. The back-up rollers are preferably rearward of the pressure roller and ride the inner surface of the tube before the curved portion. The pressure roller is preferably mounted in a semifloating yoke 24 biased into contact with the eccentric roller 19. The outward and inward movement of the roller 13 is produced by a mutual radial oscillation between shaft 12 and the head 11 as they rotate. This oscillation is produced by means of a roller (34), running on a cam surface (35), which is independently linked to shafts 33 and 52 so that their relative angular position is altered as the roller approaches and moves away from the shafts, Figs. 6 and 7 (not shown).
Patent GB-712578-A (GB)
Title: Improvements in or relating to cork compositions
IPC: B27K7/00
Filed: 1952-09-17
Abstract: Cork articles are obtained by treating cork granules with an adhesive containing gelatine glue, water, and an insolubilizing agent for the glue, and incorporating in the thus formed mass a non-drying hydrocarbon oil-severing aid together with a non-ionic surface active material in an amount from 1/2 to 10 parts by weight to 100 parts of the oil-severing aid.  In an example, the composition consists of cork granules 8 to 20 mesh per inch, gelatine glue, glycerine, a paraffin base mineral oil severing aid, water, paraformaldehyde and a non-ionic surface active material.  The glycerine may be replaced in part or wholly by triethylene glycol or sorbitol.  The surface active material may be a partial ester of a fatty acid such as lauric, palmitic. stearic, or oleic; and hexitol anhydrides, or the product obtained by one of the above materials by adding polyoxyethylene chains to the non-esterified hydroxyls.  Specification 687,735 is referred to.
Patent GB-1092638-A (GB)
Title: Improvements in means and methods of transmitting information
IPC: H02J13/00
Filed: 1964-06-05
Abstract: 1,092,638. Signalling over power lines. LONDON ELECTRICITY BOARD, and A. J. BAGGOTT. Sept. 6, 1965 [June 5, 1964], No. 23329/64. Heading G4H. Information is transmitted over power lines by signals consisting of pulses produced in the voltage waveform, Fig. 2, by drawing current from the system for a period of time which is very short compared with the wavelength of the supply. The short pulses are made by switching the supply voltage across a capacitor 24, Fig. 1, by means of a silicon-controlled rectifier 22. The rectifier is triggered by a control circuit consisting of a phasing network 8 and a dekatron 9. When triggered, the rectifier connects the capacitor across the supply but as soon as the capacitor is fully charged the rectifier switches off. The position of the pulse in the cycle is determined by the phasing circuit 8 controlled by resistor 7. There may be a pulse in every cycle or one pulse in any number of cycles up to ten as determined by the connections of the dekatron. The output of the dekatron fires a thyratron 12 which applies a pulse to transformer 19. The secondary winding pulse is connected to the s.c.r. Between cycles, the capacitor discharges through a dioderesistor network 25. If pulses are required in both half-cycles a further circuit is necessary with a s.c.r. poled in the opposite sense. For three-phase systems the signal pulses are arranged to be at the peak of one of the waveforms so that the resultant pulses in the other two phases coincide and do not interfere with the main pulse. In the receiver circuit the fundamental A.C. waveform is filtered off and the signal pulses amplified and applied to monostable flip-flop which gives an output pulse of longer duration. These are rectified and smoothed to give an amplitude signal depending on the frequency of the signal pulses. Control signals for switching equipment on or off are produced by two threshold circuits having different levels. The higher level " off " signal is arranged to disable the lower level " on " signal.
Patent GB-400747-A (GB)
Title: Improvements in the manufacture of stainless iron
IPC: C21C7/00
Filed: 1932-08-19
Abstract: In a modification described in the process described in the parent Specification, the charge of raw material consists of rustless iron scrap, a material high in iron oxide such as roll scale, and a high carbon ferrochrome, in such proportions as to result in low carbon iron-chromium alloys of the desired chromium content.  The scrap may contain also substantial percentages of other elements such as nickel, copper, manganese, tungsten, molybdenum, silicon, vanadium, aluminium, zirconium, titanium, and sulphur.  Ordinary steel scrap is preferably excluded from the charge.
Patent GB-206283-A (GB)
Title: Improvements in the method of and means for casting cylinders and other articles having parallel walls
IPC: B22C13/10
Filed: 1922-08-29
Abstract: 206,283. Mason, Ltd., A. & R., and Shawyer, G. H. Aug. 29, 1922. Moulding-machines. - Cylinders and the like with parallel walls are moulded vertically in sectional flasks. A screw 4 mounted in bearings engages a nut 11 secured by a pattern 10. As each flask section 16, 17 is rammed up the pattern is raised the height of the section. In the case of circular cylinders the pattern may be rotated on a fixed screw by a capstan 27.
Patent GB-1400272-A (GB)
Title: Compressive-load-carrying bearings
IPC: B60G5/053
Filed: 1972-05-27
Abstract: 1400272 Non-metallic springs LORD CORP 27 May 1972 [27 May 1971] 23453/72 Heading F2S In a laminated spring of bonded layers alternately of a resilient elastomer material 23 and a non-extensible material 24 such as metal, the layers being curved about a common axis or centre, the thickness of the resilient layers 23 progressively increases with distance from the axis while the modulus of elasticity of these layers decreases with the distance. The layered arrangement is bonded to the coaxial curved surfaces of inner and outer members 21 and 22 in a bearing for taking a compressive load C and possibly a torque T. The bearing may be of a simple spherical or, as shown, cylindrical form.
Patent GB-206619-A (GB)
Title: An elastic fabric or material
IPC: D03D15/56
Filed: 1922-08-30
Abstract: 206,619. Lyness, J. C. Aug. 30, 1922. Guards for games.-Relates to an elastic material for the production of sports appliances such as knee caps. A base web of elastic sheet rubber is formed with pockets C for the insertion of stiffeners D. The pockets may be formed as in Fig. 1 by overlapping strips A, B forming the base web, or as shown in Fig. 3 by applying strips G to the base web E. The ends of the pockets may either be left open or may be closed by securing the two surfaces together or extending the base web and lapping it over the end of the strip. Apertures H may be provided for the insertion of the stiffener. Stiffeners additional to the stiffeners in the pockets may be employed. A final covering web or an enclosing woven fabric may be employed.
Patent GB-1221202-A (GB)
Title: Objective lens
Inventor: FEDER DONALD PERRY
IPC: G02B13/00
Filed: 1968-05-17
Abstract: 1,221,202. Objective lens. EASTMAN KODAK CO. May 17, 1968 [May 22, 1967; May 29, 1967], No. 23527/68. Heading G2J. An objective lens consists of four air-spaced optically aligned components I, II, III, IV the front and rear components being simple negative meniscus elements L 1 , L 7  concave toward the centrally located diaphragm, the two inner components II, III being compound positive components encompassing the diaphragm space, the front compound positive components II consisting of a front meniscus element L 2  cemented to a rear biconvex element L 3 , the rear compound positive component III consisting of a front biconcave element L 4  and rear meniscus element L 6  both cemented to a middle biconvex element L 5 . Optical data are given for two examples in both of which the index of refraction of the element L 5  is higher than the indices of refraction of elements L 4 , L 6
Patent GB-939381-A (GB)
Title: Improvements in or relating to fluid dispensing valves
Inventor: DAHL ROBERT ROY
IPC: D06F39/02
Filed: 1962-06-19
Abstract: 939,381. Delivering measured quantities of liquid. DOLE VALVE CO. June 19, 1962, No. 23575/62. Class 106 (5). [Also in Group XXIX] A liquid dispensing device comprises a valve body 12 having an outlet chamber 15 communicating through a measuring chamber 14 with an inlet opening 33, an inlet valve closure member 31 co-operating with the inlet opening for controlling flow therethrough from a container 10, an outlet valve closure member 18 co-operating with an outlet opening 34 leading from the chamber 15, the inlet valve being of resilient material so as to be deformed on closure of the inlet opening to allow the closure member 18 to open the outlet 34. The valves 31 and 18 are mounted on the armature 25 of a solenoid 26, the armature being loaded by a spring 37 so as to normally maintain the inlet valve 31 open and the outlet valve 18 closed as shown. In operation, the head of liquid in the container 10 normally maintains the measuring chamber filled and, upon energization of the solenoid, the armature is retracted so that the inlet valve 31 first closes the inlet opening 33 and then deforms to a position that permits the valve 18 to uncover the outlet 34 and thereby dispense the liquid.
Patent GB-962774-A (GB)
Title: Improvements in or relating to apparatus for scanning documents
IPC: H04N1/113
Filed: 1962-06-19
Abstract: 962,774. Photo-electric apparatus. A. B. DICK CO. June 19, 1962 [June 22, 1961], No. 23581/62. Heading G1A. [Also in Division H4] A document carried by a rotating drum 14 Fig. 1, is scanned by a rotating mirror drum 36 and the light directed by a lens 30 and an assembly comprising reflecting prisms 40, 50 and a beam splitter 44 to photo-multiplier assemblies 1 and 2 the light path to photo-multiplier 1 including a small aperture 46 so that the cell generates a normal high-definition video signal representation of the document detail, and the light path to photomultiplier 2 including a large aperture 48 so that the cell generates a low definition signal which represents the integrated inflectance of the document over an area comprising the area viewed by photo-multiplier 18 and a surrounding area as determined by the size of aperture 48. In accordance with the invention, the signal from photomultiplier 2 is employed to modify the signal from both photo-multipliers so as to compensate for variations imparted by (a) variations in the background inflectance of the document due to colour, finish &c. of the paper, (b) variations in intensity of illumination of the document and (c) variations in power supplies. The invention is carried out as illustrated in Fig. 3 by adding the signal from photo-multiplier 2 as a negative-feedback gaincontrol signal in series with a power-supply potential to one of the dynodes (the fifth) of each of photo-multipliers 1 and 2. A synchronizing and blanking system 62, 64, 66 is provided which responds to synchronizing signals produced by a white object or light at one side of the document drum 14. Details of the photo-multiplier circuits and associated pre-amplifiers are given with reference to Fig. 4 (not shown). Adjustable negative feed back is provided from one stage of the amplifier to the fifth dynode of the multiplier for the purpose of suppressing unwanted high-frequency signals. Suitable dimensions for apertures 46 and 48 are given.
Patent GB-740453-A (GB)
Title: Improvements in fluid pressure flexible or resilient tube engines
IPC: H01J17/26
Filed: 1952-09-19
Abstract: 740,453. Resilient or flexible tube engines. GERRAND, H. J. F. Sept. 18, 1953 [Sept. 19, 1952], No. 23588/52. Class 110(2) [Also in Group XXX] The engine comprises a carriage 11, fitting loosely on a resilient or flexible tube 10, and pairs of rollers 13. As fluid under pressure is supplied to the lower end of the tube, the carriage, together with any load supported by it, is moved upwards. Fig. 3 shows another arrangement in which the tube is supported on the upper flange 15 of a rail 14, a roller 12 being held down on a flattenea tube 10 by means of pairs of rollers 12a which bear on the undersides of the flange In Fig. 4, not shown, the upper end of a hose is supported whilst the tubular member 11 carries a platform at its lower end. Pressure fluid, under control of a valve, is admitted to the hose and a return tube for the fluid provided. The upper end of the hose is fitted with a vent plug for fluid leaking between the rollers. Fig. 5 shows another arrangement in which the carriage 11 is pivoted at 20 and the load is supported by a mounting 21, at tached to the hose. Pressure fluid is supplied to the end 10a of the pipe 10. through a feed line 22.
Patent GB-1378366-A (GB)
Title: Brake devices
IPC: B61H5/00
Filed: 1973-05-17
Abstract: 1378366 Spot-type disc brakes; pad-mounting KNORR-BREMSE GmbH 17 May 1973 [25 May 1972] 23679/73 Heading F2E In a spot-type disc brake where the ultimate actuator is a brake linkage (e.g. a railway vehicle brake), the brake pads are connected by an articulated coupling to inhibit tilting of the pads towards one another in circumferential directions relative to the disc. As shown in Figs. 2 and 3, each brake pad 6, 7, is connected indirectly to the brake linkage 2 in the manner of a universal joint by a vertical pivot 10 and an intermediate member 8, which is pivoted in turn horizontally, at 9, to the linkage 2. Outside the outermost lugs of the backing plates 6 are located, on the same pivot 10, the forked end portions of a curved lever arm 12 or 13 of a toggle lever 11, the lever arms being connected by a pivot 14 which is parallel to the vertical pivots 10. Thus, tilting of the brake pads towards each other, in the plane of Fig. 3, is prevented, whatever the direction of rotation of the disc 4. Normally the vehicle axle 3 is parallel to the vehicle superstructure 1 (Fig. 1, not shown), but where these are relatively oblique, as shown in Fig. 3, re-orientation of the brake pads is permitted by providing a clearance between the lever arm forked ends and the adjacent backing plate lugs. Relative tilting, however, is still prevented. In Figs. 4 and 5 each lever arm of the toggle lever 20 is connected by two vertical pivots 24 to an extended intermediate member 22, 21, (and thus only indirectly to the adjacent brake pad), the pivots 24 being parallel to pivots 10 and 14. In Figs. 7 and 8 the connections of the lever arms to the brake pads 6, 7, and intermediate members 8 are as in Fig. 2, except that no clearance between forked ends and backing plate lugs is provided: instead, the lever arms 33, 34 are connected by a parallelogram linkage 32, 35, 36.
Patent GB-260729-A (GB)
Title: Improvements in shock-absorbing devices for motor road vehicles
IPC: F16F7/04
Filed: 1925-09-23
Abstract: 260,729. Smith, F. Sept. 23, 1925. Vibration-dampers of the frictional type in which the frictional elements are engaged by a spring are provided with means for indicating the tension of the spring, and the variations in tension due to wear. In the construction shown in Fig. 1 applied to a vibration-damper of the oneway band type, a band C formed in one with an arm D is tightened round a drum. formed on the other arm B, by means of a bolt E and nut N which engages V-grooves in the end of the band C at every half turn. The head H of the bolt engages the arm D through a helical spring F housed in a recess in the arm and the pressure applied to the frictional elements by the spring is indicated by the extent to which the head H enters the recess. Grooves J or other scale markings are provided on the head H, and the bolt is prevented from turning by a snug L entering a groove M. A washer near the head may be used as a pointer moving against indications on the arm D, or may itself carry scale indications. In a modification, the positions of the head and nut are reversed and the nut or washer thereunder carries indicating means. In the construction shown in Fig. 15 applied to frictiondisc dampers, the central bolt E engages the friction elements through washers W<1>, W<2>, similar indicating means being provided in connection with the nut N. In a modification, the indicating means are provided on the head H. In a further modification, the coil spring is replaced by a spring plate or spider.
Patent GB-1535045-A (GB)
Title: Decoration of articles
IPC: B44C1/175
Filed: 1976-07-27
Abstract: 1535045 Decorating ceramics BEN CAPPER Ltd 27 July 1976 [31 May 1975] 23741 Heading C1M Decals are applied to ceramic articles which are to be glazed, the entire surface of the decal and of the article is then coated with a matting agent, compatible with the glaze to be applied, so as to render the coated surfaces hydrophillic, the article is then coated with a glaze medium and then fired to harden the glaze. The matting agent may be a glaze, a flux or china clay together with a binder (e.g. a polymer and a solvent) with optional addition of a thinner.