baber/WOPTO huggingface dataset:
Patent GB-756857-A (GB)
Title: Improvements in or relating to a finely divided silica pigment and method of preparing same
Inventor: ALLEN EDWARD MERLE
IPC: C01B33/187
Filed: 1953-06-05
Abstract: Finely divided silica having a surface area of 60-200 sq.m./gm and an average ultimate particle size below 0.1 micron, and containing at least 90 per cent of SiO2, one mole of bound water per 3 to 9 moles of SiO2, 2-10 per cent of free water, and one mole of alkaline earth metal oxide per 10-150 moles of SiO2 is prepared by reacting finely divided alkaline earth metal silicate having a particle size of below 0.1 micron and a surface area of 50-125 sq. m./gm. with an acid or acidic material, which forms a water soluble salt of the alkaline earth metal, in an amount sufficient to produce the above alkaline earth metal oxide content.  Alkaline earth metals included are those of series 3-8, Group II of the Periodic Table.  The pH of the silicate is reduced to below about 4 or 5 by the addition of the acid.  The use of calcium silicate and hydrochloric acid is specified.  The product may contain 0.5-6 per cent of calcium calculated as CaO.  The pH may be adjusted to above 5, preferably in the range 5-7, by the addition of alkali.  The alkali is generally added to the precipitated silica before the silica is separated from its mother liquor.  The pigment may be dried at 120-140 DEG C. for 10-12 hours.  The silica may be formed into cakes by compressing to a bulk density of 15-30 lbs., preferably 20-25 lbs. per cu. ft. under a pressure of 125-200 lbs./sq. in. Specification 745,822 is referred to.
Patent GB-893920-A (GB)
Title: Polycyclic amino compounds and methods for their production
IPC: C07D317/70
Filed: 1960-05-04
Abstract: The invention comprises compounds of the general formula <FORM:0893920/IV (b)/1> (wherein R1 represents hydrogen, an alkyl or alkoxyalkyl radical of not more than 6 carbon atoms, or a benzyl radical, R2 represents hydrogen or a C1-6 alkyl radical, R3 and R4 represent hydrogen atoms or jointly a methylenedioxy radical, A represents -CH2CH2- or -CH=CH-, and Z represents oxygen or CH2) and their acid addition salts, and the preparation thereof by the following processes: (a) (where R1 is other than hydrogen, R2 is hydrogen and A is -CH2CH2-) reacting an imine of the general formula <FORM:0893920/IV (b)/2> (wherein X represents a halogen atom and R5 represents an alkyl or alkoxyalkyl radical of not more than 6 carbon atoms or a benzyl radical) with a reactive organometallic compound under anhydrous conditions and decomposing the product with an aqueous medium; (b) (when R1 is hydrogen and R2 is CH3) reducing a carbamate of the general formula <FORM:0893920/IV (b)/3> (c) (when R1=R2=H) hydrolysing a carbamate of the general formula given in (b); (d) (when R1=R2=H and A is -CH2CH2) catalytically hydrogenating the N-monobenzyl derivatives of the desired products; (e) (when R2 is C1-6 alkyl) alkylating the compounds in which R2 is hydrogen (e.g. by acylation followed by reduction); (f) (when R1 is hydrogen or C1-6 alkyl and A is -CH2CH2-) catalytically hydrogenating the corresponding compounds in which A is -CH=CH-.  The products are p useful as central nervous system depressants (see Group VI).  Imines of the second general formula above are prepared by condensing a primary amine with the corresponding ketones, obtainable, when Z is oxygen, from a sodium o-halophenate and a 2-halocylohexanone, or, when Z is CH2 from an o-halobenzyl halide and cyclohexanone in the presence of sodamide.  Carbamates of the third general formula above (R3=R4=H) are prepared by esterifying indene- or benzofuran-3-carboxylic acid to an alkyl ester, reacting this with butadiene to form an alkyl ester of 1,4,4a,9a-tetrahydrofluorene-4a-carboxylic acid or 5a,6,9,9a-tetrahydrodibenzofuran-9a-carboxylic acid and then performing the transformations <FORM:0893920/IV (b)/4> preceded, if desired, by <FORM:0893920/IV (b)/5>ALSO:Compounds of the general formula <FORM:0893920/VI/1> (wherein R1 represents hydrogen, an alkyl or alkoxyalkyl radical of not more than 6 carbon atoms, or a benzyl radical, R2 represents hydrogen or a C1-6 alkyl radical, R3 and R4 represent hydrogen atoms or jointly a methylenedioxy radical, A represents -CH2CH2- or -CH = CH-, and Z represents oxygen or CH2) and their addition salts with inorganic or organic acids (including ascorbic acid) may be administered orally or parenterally as central nervous system depressants.  For anaesthetic purposes they may be used in combination into barbiturates.
Patent GB-414490-A (GB)
Title: Improvements relating to fastenings for windows, doors, and the like
IPC: E05B15/00
Filed: 1933-06-01
Abstract: 414,490. Door and window fastenings; pivots. HOPE & SONS, Ltd., H., and SAINSBURY, G. W., Halford Works, Smethwick, Staffordshire. June 1, 1933, Nos. 15839 and 25323. [Classes 44 and 65 (ii).] A cock-spur or like pivoted fastening for doors, windows, &c. is held frictionally in angular adjustment by a helical spring b under stress, and engaging a helical groove formed within the boss a of the fastener member j. The ends d, e, of the spring are respectively anchored in recesses in the attachment plate f, and head h of the pivot pin g. In an alternative form the spring engages a groove in the pivot pin and its ends are anchored to the fastening member boss. In both these forms the spring also acts as a screw giving axial movement to the fastener member which aids in tightening the window &c. a space k being left to allow this movement. In a modification, this axial movement of the fastener is not permitted, the ends of the spring being anchored in slots to allow axial movement of the spring.
Patent GB-402784-A (GB)
Title: Improvements in the manufacture of cellulosic films, sheets and threads
IPC: C08L1/00
Filed: 1932-06-04
Abstract: <PICT:0402784/IV/1> To obviate the formation of bubbles during the coagulation of cellulose ester films, sheets, or threads, the cellulose ester solution is before use subjected to a vacuum to remove air, and the coagulation liquid is also subjected to deaeration as by boiling or vacuum treatment.  Castor oil is a suitable coagulation liquid for celluloid film, and butyl benzoate with or without a small proportion of triacetin for cellulose acetate film, in both cases acetone being used as the solvent in the cellulose ester solution.  A suitable apparatus for use in the process comprises a hopper 11 for the cellulose ester solution, constructed as described in Specification 402,807 and supplied from a tank 30 through a regulating pump 28; from a slot in the base of the hopper, the solution is delivered as a film, enters the coagulation liquid in a tank 14 and is received on a roller 13 rotating in the liquid at a speed correlated with that of the pump 28; the film leaves through a pair of squeezing rolls 16, and the coagulation liquid is continuously withdrawn and after passage through an evaporator 20 to remove solvent and dissolved air is returned to the tank 4.  The solution in the hopper is maintained at a temperature just above 0 DEG  C. by means of a water jacket.  By the process continuous films such as are required for use in kinematographs are obtained.
Patent GB-457709-A (GB)
Title: Hydraulic controls for retractable undercarriages of aircraft
IPC: B64C25/22
Filed: 1935-05-31
Abstract: 457,709. Aircraft alighting gear. RUBBRA. A. A., Red Roofs, Carlton Road, Derby, and DOREY, R. N., Grasmere, Burton Road, Findern, near Derby. May 31, 1935, No. 15852. [Class 4] Means for raising and lowering the retractable alighting-gear of aircraft include one or more constantly - operating pumps A normally circulating fluid idly, one or more hydraulic rams C adapted to cause movement of the gear, a control D operating a valve B to govern the direction of fluid supply to the rams and means for holding the control and valve means in their displaced position during movement of the gear and returning them to the neutral position when the movement has ceased, thus positively locking the gear in position. When the control D is moved against one or other of spring plungers E it is caught by one or other of two catches pivoted on a pin E<5> carried by a plunger E<6> and integral with levers E<3> pivoted on shafts E<2>. The pin control can be released from the plunger, on actuation of a lever G<1> against the action of a spring G<2>. In the midposition of control D, oil from the pump is returned to a reservoir A<1> through a pipe A<3> and ports H, H<1>. On rotation of valve B port H is closed, pressure builds up under plunger E<6> which is raised against the action of a spring E<7> and raises the pin E<5> to cause one or other of the catches E<1> to engage the control D and hold it deflected ; simultaneously, port H<2> is opened to the fluid supply which passes through the valve to the ram C. When the ram reaches the end of its travel, the spring E<7> forces plunger E<6> downwardly, oil passing through the leakage aperture E<8> to release the control D which is then returned to its mid-position. In a modification, when the control D, Fig. 7, is moved, e.g. to the left, the right-hand plunger J<2> is moved against the action of its spring J<3> and the valve is rotated closing port K thereby causing oil to flow into port M. Oil passes to the ram through port M<1> and back to the reservoir through a port in the valve. When the ram reaches the end of its stroke, the compressed spring J<3> forces its ram to the left, oil leaking through the piston, and returns the control D.
Patent GB-623978-A (GB)
Title: Improvements in bending tools
IPC: G01N3/02
Filed: 1947-06-17
Abstract: 623,978. Testing physical qualities of materials. AVERY, Ltd., W. & T., and HINDE, P. B. June 17, 1947, No. 15874. [Class 106 (ii)] [Also in Group XXII] A bending tool for incorporation in a tensile testing machine comprises a former roll 14 on a carrier 5 attached by a swivel joint 7 to a jaw 9 and cooperating with rolls 12 on a member 4 attached by a swivel joint 6 to a jaw 8. The carrier 5 is formed of spaced plates with parallel guide edges engaging the rolls 12 and is housed within side plates of the member 4. The test piece 13 is positioned as shown in Fig. 1 and is bent through 180 degrees about the roll 14. Exchangeable rolls and carriers 5 may be provided for dealing with work pieces of different size.
Patent GB-885116-A (GB)
Title: Flexible mountings
Inventor: HUTTON PHILIP CHARLES
IPC: F16F1/42
Filed: 1957-05-20
Abstract: 885,116. Resilient mountings. SILENTBLOC Ltd. May 7, 1958 [May 20, 1957], No. 15947/57. Addition to 813, 639. Class 108(3). The resilient mounting of the parent Specification is improved by the provision of a hollow spherical resilient body 15, Fig. 2, between mounting studs 10. Holes 16, 17 relieve air pressure within the resilient body. In an alternative construction the studs 10 are interconnected by four resilient arms 22, Fig. 3. The characteristics of the mounting may be varied by enclosing within the arms 22 a solid ball of material having damping properties of the frictional, air, hysteresis or viscous type, e.g. felt or sponge rubber.
Patent GB-121147-A (GB)
Title: Motor Cycle Frame Construction.
Inventor: JONES ALFRED CHARLES
IPC: B62K11/04
Filed: 1917-12-06
Abstract: 121,147. Jones, A. C. Dec. 6, 1917. Frames.-The frame of a motor-cycle comprises two suitably-shaped metal stampings A, B, which are connected by means of distance-pieces 16, the ends of which are riveted or otherwise fixed to the members A, B. The edges of the stampings are turned in and may be covered by sheet-metal strips 23. The frame shown is for two passengers, a twin-cylinder engine being carried in the space 2. The space 15 may accommodate a tool locker, and a fuel tank may be carried by a bracket 18. The two members A, B may be united by lugs on their flanges and may be of curved cross-section. A single-seater frame is also described.
Patent GB-861233-A (GB)
Title: Spray drying process
IPC: A23C1/04
Filed: 1958-05-19
Abstract: <PICT:0861233/III/1> A process of spray drying a liquid containing solids in solution or suspension, e.g. milk, comprises providing a stream of drying medium having a temperature gradient across it and spraying the liquid into this stream so that the region of spray of greatest density contacts the part of the stream having the highest temperature.  In an apparatus for effecting the process a pump 20 supplies nozzles 16, through a heatexchanger 22 and conduits 14, with liquid, e.g. milk concentrated to 40% solids and heated to 130 DEG to 170 DEG  F., at approximately 4000 lbs. per square inch pressure, to produce within a drying chamber 10, divergent spray patterns 24, into which air heated by a heater 28 is blown by a blower 30, the air entering the chamber 10 through concentric passageways 12, the innermost of which have heating elements in their walls which heat, e.g. to 425 DEG  F., the innermost streams of air impinging on to the spray.  Dried particles which fall on to the bottom of the chamber are moved to a discharge duct 74 by a conveyer 72, whilst lighter particles are carried through, by the air flow, to a cyclone separator 78.
Patent GB-1107533-A (GB)
Title: Washing machine
IPC: D06F15/00
Filed: 1965-04-14
Abstract: 1,107,533. Washing machines. LICENTIA PATENT - VERWALTUNGS G.m.b.H. 14 April, 1965 [14 April, 1964; 11 March, 1965], No. 16029/65. Heading D1A. A rotary drum washing machine comprises a piston of smaller cross-section than the drum 2 and connected thereto by a diaphragm 55 the piston being moved along the axis of the drum by a pressure medium flowing in behind the diaphragm which at the same time squeezes out washing thrown against the drum wall when the drum rotates. The drum 2 is rotated in a fixed tub 21 by motor 23 through worm and toothed gearing 25, 26, comprising steel gears paired with plastics gear to reduce noise and engaging a toothed ring 11 on drum 2. The perforated middle part 1 of drum 2 is of stainless steel or plastic and is connected to first conical part 13 and a second conical part, e.g. of plastic, stainless steel or stainless steel coated in plastic. The three parts of drum 2 are secured together by four bolts 8. A heating coil 85 heats suds in the drum and the suds and rinsing water are pumped out by pump 30. Operating water is pumped in under the cylindrical piston 38 by pump 28 through conduit 104 and cylinder 103 which may also be of plastics, stainless steel or stainless steel coated with plastics and carries a hollow body 102 integral with part of the drum so that cylinder 103 acts as a stub shaft to carry the slidable drum. Body 102, which has four slots 107, 108, is the slotted hub 37 of piston 38 which comprises the annular portion 45, 47, 56 connected by radial ribs forming inner spaces, e.g. 39, 41 and end wall 43 to hubs 37. Operating water passes through slots 105, 106 to the space behind piston 38 and diaphragm 55 to force the piston 38 to the right as drawn in Fig. 1a, against the action of springs 48. Ribs 14a, 14b, 14c in part 13 guide wall 47 when hubs 37 slides off body 102. A filling opening is provided between ribs 14a, 14b and the end of the drum is mounted in a simple bearing. In operation, after washing with continuous reversing at 40-50 r.p.m. operating water is fed behind the piston 38 and the speed is increased to 80-100 r.p.m. e.g. by a 1:2 pole changing motor so that the washing is distributed round the outside of drum 2. As piston 38 advances diaphragm 55 presses the washing against the perforated part 1 and when piston 38 reaches its right hand position the pressure of the operating water increases and when the pressure is removed springs 48 return the piston. Squeezing out may be repeated and in between the drum speed may be reduced and it may be reversed. The operating water may be held in a special reservoir and continuously re-used, being topped up when necessary. In a modification, Fig. 2, two diaphragms 55a, and i and two pistons 38a and i are provided, the pistons being biassed to the left by springs. Both diaphragms are connected to the base of piston 38a and their other ends are secured respectively to parts 2, 2<SP>1</SP>.
Patent GB-712110-A (GB)
Title: Improvements in mowing machines
Inventor: BAMFORD CYRIL JOSEPH
IPC: A01D34/24
Filed: 1951-07-06
Abstract: 712,110. Mowing-machines. BAMFORDS, Ltd. Feb. 15, 1952 (July 6, 1951], No. 16046/51. Addition to 646,572. Class 6 (3) A mowing machine is provided with both manual and hydraulic lifting means for the cutter bar, and the hydraulic lifting-means includes a lost-motion device to accommodate movements of the cutterbar in traversing uneven ground, and to permit operation of the manuallift independently of the hydraulic mechanism. The machine is similar to that described in the parent Specification and comprises a main frame 10 having a cutter bar 12 supported on a hinge-bar 13 so as to be raisable by the lifting of a link 14 through a hand lever 23 or a hydraulic ram 28, Fig. 6. The link 14 is connected to a spring-loaded arm 15 pivoted at 16 to the main frame and also pivoted to a link 18 connected at 19 to an arm 20 integral with the lever 23 through a spindle 21. The ram piston 29 acts through a piston-rod 26 and arm 25 upon a pivot pin 24 carried by the lever 23. The rod 26 slides freely in a hole in the piston but carries a collar 31 which transmits positive movement to the rod in one direction. Alternatively, the arm 25 may be drilled and may slidably receive the piston-rod 26. In another construction, the pivot 32 connecting the ram 28 to the frame 10 may be mounted slidably in a pair of parallel slots. The linkwork 18, 20 may pass through dead-centre when the manual lift is used but is prevented from doing so, when the ram is used, by a pivoted abutment 37 which can be swung into the path of the lever 23 so as to intercept a stop 42, as shown in Fig. 4. Specification 505,788 is referred to in the Provisional Specification.
Patent GB-1132632-A (GB)
Title: Apparatus for and method of testing vibratory-type devices
IPC: G01H1/00
Filed: 1966-04-13
Abstract: 1,132,632. Measuring vibrations electrically. JAEGER MACHINE CO. April 13, 1966 [April 22, 1965], No. 16153/ 66. Heading G1N. [Also in Division H3] A Piezo-electric vibration measuring transducer, such as an accelerometer 10, Fig. 1, measures the mechanical vibration produced in a body P, such as a road surface, by a pneumatic road-working tool T, the mechanical condition of two such tools being compared by operating them successively and comparing the corresponding transducer signals. The output of the transducer 10 is amplified at 11 and supplied via a time controlled switch 22a to two channels, the first of which indicates at 15 the total energy output of the pneumatic tool by rectifying the vibration signal at 12, integrating the result at 13, and applying the resulting D. C. to the meter via a high impedance meter drive circuit 14. The second channel indicates at 21 the number of blows per minute administered, and includes a photo-sensitive gain control circuit 16, a pulse shaper 17 which produces a single pulse F for each sequence of oscillations E resulting from one impact, a multivibrator 18 triggered by the pulse F, and an integrator 19 which supplies a meter drive circuit 20 with a signal proportional to the number of pulses G from the multi-vibrator in circuit. The transducer (10, Figs. 2, 3, not shown) has a casing (33) closed by a flanged plate (36), and containing a bar-like Piezo-crystal (25) secured at one end by a spring member (28) which forces it against abutments 27. The free end of the crystal is mechanically connected to a resilient diaphragm (32) and a mass (30). Electrical connections from the crystal to a two pin plug (39) are via the casing and the spring member (28) respectively. The transducer is mounted on a chisel edged tool Fig. 4 (not shown), or a tapered tool Fig. 5 (not shown), which has been previously driven into the road surface by the pneumatic road-working tool.
Patent GB-194253-A (GB)
Title: Improvement in means for the moderating of the light beam of lamps with great lighting power
IPC: F21V11/00
Filed: 1922-06-12
Abstract: 194,253. Geuns, J. E. C. van. Feb. 28. 1922, [Convention date]. Void [Published under Sect. 91 of the Act]. Lighting, systems of.-A vehicle lamp is provided with a frame arranged in front and carrying a number of thin wide parallel plates in an inclined position so that the front edge of each plate and the rear edge of an adjacent plate lie in a horizontal plane. The frame may form part of the lamp, or the lamp itself may be adapted to serve as the frame. The upper sides of the plates are dull black, shaded off to a lighter colour towards the light source. In one arrangement, the vehicle is provided with one such lamp at each side arranged to throw the light downwardly, and a third lamp is placed in the upper part of the vehicle with the plates in an inverse direction, so as to direct the light rays above a horizontal surface. In this way a dark horizontal band is produced in front of the vehicle, above and below which strong illumination is obtained.
Patent GB-1246046-A (GB)
Title: Coating processes
Inventor: STURGE DEREK WILLIAM JAMES
IPC: G21C3/62
Filed: 1969-03-27
Abstract: 1,246,046. Coating particles. U N I T E D KINGDOM ATOMIC ENERGY AUTHORITY. 24 March, 1970 [27 March, 1969], No. 16245/69. Headings B2E and B2L. [Also in Division G6] Particles, such as microspheres of nuclear fuel material, are coated by a process comprising a number of similar coating treatment stages to which the articles are subjected in succession, undersized articles being detected by a grading operation and passed back for further treatment to the second stage and oversized articles restored to their uncoated condition and recycled through both treatment stages. The coated may be carried out by tumbling microspheres of a nuclear fuel material in a revolving drum into which a coating power is fed, transferring the microspheres between the drum of one stage and the drum of the next, preferably by fluidisation techniques, grading the particles so that undersized particles are returned to the second stage and the coating is removed from oversized particles and returned to the first stage. In the apparatus shown untreated particles are fed into the rotating drum 1 wherein a coating of graphite powder is applied by tumbling. When the coating process is only partially completed the particles are transferred to the second drum 2 where coating is continued to completion. Oversized particles are returned to the first stage drum 1 by way of a washer 4. Undersized particles from the second stage are returned to the second stage drum 2 for the application of further coating material. The particles which may have previously received a coating of a fission product retaining layer by a previous operation, e.g. in a fluidised bed coater, are coated with phenol formaldehyde resin and a spray of methylated spirits directed occasionally into the drum to soften the resin so that it adheres to the tumbling particles.