baber/WOPTO huggingface dataset:
Patent GB-1137762-A (GB)
Title: Process for preparing epoxidized organic compounds and apparatus therefor
IPC: C07D303/42
Filed: 1966-03-14
Abstract: 1,137,762. Epoxidation. ARGUS CHEMICAL CORP. 14 March, 1966 [18 March, 1965; 3 Feb., 1966], No. 11139/66. Heading C2C. [Also in Division B1] Epoxidized unsaturated fatty esters and oils and other unsaturated compounds are prepared in a continuous process by blending with an organic per acid to epoxidize the compound and convert the per acid to the carboxylic acid, and reducing the mixture to a thin film of large surface at between 60 and 200 C. to flash off the low boiling components and recover the epoxidized product. The reaction mixture may be put through a back-mix still-pot reaction zone, with at least a portion of the mixture being withdrawn, and a further amount of unsaturated and epoxy compounds blended in the still-pot zone, the withdrawn reaction mixture is then passed through a non-recirculating traverse reaction zone the two zones being at between 50 and 150 C. and under a pressure sufficient to maintain the liquid phase. In a preferred embodiment using fatty esters, the per acid is added incrementally and two backmix recirculating zones are used. The product is passed over one or two thin film evaporation zones to remove the low-boiling acid component, water or other low-boiling solvent being added to aid the stripping. Examples describe the epoxidation of soyabean, linseed, corn, and cottonseed oil with peracetic acid and hexadecene-1 with peracetic acid. Many unsaturated compounds which may be epoxidized are listed and a suitable apparatus is described.
Patent GB-247790-A (GB)
Title: Improvements in wall construction
IPC: E04B2/86
Filed: 1925-04-29
Abstract: 247,790. Buckhout, W. C. April 29, 1925. Ventilating conduits, passages, and pipes, arrangements and adaptations of.-Walls of the kind consisting of cement cast between parallel sheets of expanded metal or like material are provided with internal ventilation and drainage passages formed by two sheets of cardboard pressed into semicylindrical portions 22, Fig. 4, which, when face to face, form complete tubes connected by webs 23. Superposed tubes are connected by sleeves 30. The tubes communicate by sockets 31 with a pipe 32, and vents are placed at the ends of the pipe 32 and in the upper part of the tubes near the ceiling of each room. The series of tubes are supported by ties 36, 39.
Patent GB-705154-A (GB)
Title: Improved picking motion for looms
Inventor: HEATON JOHN
IPC: D03D49/42
Filed: 1950-05-05
Abstract: 705,154. Loom picking mechanisms; shuttles. ELECTRO-PNEUMATIC LOOMS, Ltd. April 24, 1951 [May 5, 1950], No. 11174/50. Class 142(2) A picking system comprises a reservoir 3 of compressed air and a valve 7 for controlling the flow of air to the shuttle box. The valve 7 is operated at required intervals by linkage 8, 9 which also operates an exhaust valve 12 to close an exhaust outlet 15 when the valve 7 is opened. A screw 16 is provided to enable the flow of air to the exhaust opening 15; caused when a shuttle is received in the box, to be restricted. Alternatively a diaphragm valve operated by a piston may be used. for controlling the flow of air from the reservoir. The end of the shuttle has recesses on either side to align the shuttle in its direction of movement when the air is introduced into the shuttle box. Specification 602,944 is referred to.
Patent GB-610619-A (GB)
Title: Process for the separation of isomeric substituted quinoline carboxylic acids and esters thereof
Filed: 1946-04-11
Abstract: 5- and 7-chloro-4-hydroxy-3-methylquinoline-2-carboxylic acids, or esters of such acids, are separated from mixtures comprising them by treatment with a non-oxidizing strong acid at a temperature and acid concentration at which the 5-chloro isomer dissolves or remains in solution and at which the 7-chloro isomer is insoluble or precipitates.  By "non-oxidizing strong acid" is meant an inorganic or organic acid which is at least as strong as formic acid and which is not an oxidizing agent.  The 5-chloro isomer may be separated from the acid solution.  The isomeric acids or esters may be separated with concentrated hydrochloric acid at an elevated temperature, or the isomeric acids may be separated with sulphuric acid of a concentration between or in the neighbourhood of 50 to 70 per cent or with concentrated formic acid, e.g. by heating the mixture of isomeric acids until dissolution is complete, and cooling to separate the 7-chloro isomer.  The isomeric esters may be heated with concentrated sulphuric acid, e.g. of a concentration between or in neighbourhood of 50 to 70 per cent to effect saponification and on cooling the 7-chloro acid separates out.  The mixture of isomeric esters used for the process of the invention may be obtained by the cyclization of the condensation product of meta-chloraniline and oxalo-propionic acid ethyl ester, or the mixture of acids used for the process of the invention may be obtained by the alkaline saponification of the resulting mixture of isomeric esters.  The diethyl ester of m-chloro phenyliminomethyl succinic acid is prepared by condensing in the cold m-chloraniline and the diethyl ester of oxalo-propionic acid.
Patent GB-1423916-A (GB)
Title: Process for purifying gases
IPC: B01D53/54
Filed: 1973-03-08
Abstract: 1423916 Purifying gases OSAKA GAS CO Ltd 8 March 1973 [14 March 1972] 11252/73 Heading C1A [Also in Division C5] H 2 S and/or HCN are removed from gases by treating them with an aqueous alkaline absorbent, e.g. an ammonia solution of a desulphurizing catalyst or an ammoniacal suspension of solid sulphur so as to form with the contaminant a compound containing nitrogen and sulphur, e.g. ammonium thiosulphate, ammonium thiocyanate, discharging the treated gas and combusting the absorbent medium containing the fixed contaminant at a temperature from 800- 1300‹ C. to produce a gaseous combustion product containing SO 2 , removing the SO 2  from the gaseous product and discharging the residual gas. The fixed contaminant may have a concentration of 5 to 80% by weight in the absorbent medium, preferably 50-70% by weight and the combustion temperature may be 1100-1200‹ C. In the apparatus of Fig. 1 gas is washed in absorption tower 1 with an ammoniacal suspension of S which is recycled by way of tank 3, so as to fix HCN as ammonium thiocyanate and H 2 S as ammonium thiosulphate. Fresh S suspension may be supplied from tank 4. Partially spent suspension may pass via pump 5 to filter press 6 from where solid S is returned to tank 4 and filtrate passed to tank 8. Alternatively partially spent suspension may pass directly to tank 8 from which liquid is sent to steam heater 11 via pump 9 and thereafter to concentration tower 12. Concentrated liquid is pumped into tank 16 by pump 13. Vapour from tower 12 is condensed by cooler 17 and separated in vapour liquid separator 18. Separated gas returns to absorption tower 1 and separated liquid to tank 3. Concentrated liquid from tank 16 is sprayed into furnace 22 by pump 21. At concentrations of nitrogen containing S above 70%, air is blown into furnace 22 at an initial temperature of at least 800‹ C. by blowers 23, 24 to decompose the N-containing S compound. At concentrations below 70% fuel is also supplied. Heat is recovered from the combustion products in boiler 26 and dust is removed in filter 27. Gas from filter 27 passes to reactor 28 where SO 2  is oxidized to H 2 SO 4  in condenser 30 and collected in tank 33. The acid is sent to heat exchanger 32 by pump 31 for cooling. Gases from condenser 30 may be discharged to the atmosphere or passed through washing tower 34 and Cottrell precipitator 35 before discharge through chimney 36.
Patent GB-806837-A (GB)
Title: Glass compositions
Inventor: STANWORTH JOHN EDWIN
IPC: C03C3/062
Filed: 1956-04-13
Abstract: 806,837. Glass. BRITISH THOMSONHOUSTON CO. Ltd. April 16, 1957 [April 13, 1956], No. 11334/56. Class 56. Glass for transmitting infra-red radiation consists substantially wholly of calcium and gallium oxides, with the gallium oxide being between 59 and 69 per cent. weight of the total, but up to 8 per cent. of the gallium oxide can be replaced by silica. A particular example which is transparent and pale yellow is made from a batch composition, by weight, CaO 33À2; Ga 2 O 3  59À8; Si O2 7À0. This melts at 1400‹C, and anneals at 700‹C. A sample 4 mm. thick transmits 60-70 per cent. of incident radiation between 3À4 and 4À6 micron. Its refractive index is approximately 1À7.
Patent GB-756604-A (GB)
Title: Improvements relating to cooled current carrying windings
Inventor: BAKER WILLIAM SEBASTIAN GRAFF
IPC: H01F5/00
Filed: 1954-04-20
Abstract: 756,604. Electric coils. BRITISH THOMSON-HOUSTON CO., Ltd. April 20, 1955 [April 20, 1954], No. 11370/54. Class 35. An electric coil is liquid cooled by means of non- magnetic tubes 4 passing axially between the turns of the coil, the end cheeks 2 having suitable slots 3 to allow passage of the tubes. The cooling effect is increased by providing non- magnetic heat-conducting leaves 5 lying between the coils and brazed to the tube. Preferably, the leaves are doubled as shown in Fig. 3 for greater flexibility, and brazed at 6 to the tube. The complete tube and leaves may be formed as a unit by electrodeposition.
Patent GB-750735-A (GB)
Title: Improvements in means for washing the windscreens of motor vehicles
IPC: B60S1/48
Filed: 1954-04-20
Abstract: 750,735. Windscreen washers. DAIMLERBENZ AKT.-GES. April 20, 1954 [April 24, 1953], No. 11375/54. Class 138(1) [Also in Group XXVIII].  A windscreen washer installation comprises a vacuum operated motor pump device having automatically operated distributer valve means which vents the motor element to atmosphere at the end of the suction stroke of the.pump element and reconnects the motor element with the vacuum at the end of the delivery stroke of the pump element, and a manually releasable detent device for arresting the motor element at the end of the suction stroke of the pump element. The washer installation comprises a cylinder 3, having a piston 6 which serves as a combined motor and pump piston, a liquid tank 4 and a piston slide valve 14 for controlling an atmospheric port 10 and a vacuum port 11 both in the cylinder 3. The port 11 communicates by a pipe 13 with the induction manifold of the vehicle engine. The piston 6 has a peripheral groove 27 which can be engaged by a spring-urged detent 8. In the position shown in the Figure the piston is held by the detent and a spring 7 is compressed. The top face 37 of the piston has engaged a pin 16 on the valve 14 to move the latter so that the port 10 is open and the port 11 is closed. On releasing the detent by pulling a knob 24 and thus a cable or rod 25, the spring 7 causes the piston 6 to force liquid from the cylinder 3 past a valve 28, through a pipe 29, to a nozzle 30. At the end of such delivery stroke the lower face 32 of the piston engages another pin 17 on the valve 14 to move the latter and cause the port 10 to be closed and the vacuum-port 11 to be opened. The piston is then raised and sucks-up liquid from the tank 4 past a valve 36 into the cylinder 3. At the-end of this suction stroke the piston 6 is retained by the detent and the valve 14 is moved to close the port 11 and open the port 10. The washer is then in readiness for its next operation. In another embodiment the cylinder 3 is disposed horizontally and communicates with a vertical liquid chamber in turn communicating with the vertical liquid tank 4. A manually operable rod is slidable axially of and within the piston so that in the absence of a vacuum, the piston may be caused to effect the pump intake stroke by pulling the rod. Under normal conditions of operation, pushing of the rod causes release of the detent so that the delivery stroke of the pump is then effected by the spring 7, as before. The rod is also rotatable relatively to the piston so that on rotation it may be retained in its pushed-in position to render the detent inoperative so that the washer can then operate continuously. Instead of a single piston 6, the pump and motor may have separate but interconnected pistons. Moreover the pump may comprise a diaphragm, bellows, or the like instead of a piston and the detent may be operated electrically.
Patent GB-883377-A (GB)
Title: New chromium and cobalt complex monoazo dyestuffs, their production and use
Inventor: LEUCHS DIETER
IPC: C09B45/00
Filed: 1960-04-01
Abstract: The invention comprises metal complexes which contain, bound to one chromium or cobalt atom, one to two radicals of formula <FORM:0883377/IV (c)/1> where X1 is O or COO, R1 is H, Cl or NO2, R2 is H, NO2, MeSO2, EtSO2 or SO2NH2, R3 is H, Cl, Me, MeO, NO2, MeSO2, EtSO2, SO2NH2 or SO2NHMe, R4 is H or Cl and B is a 2-hydroxy-, 1-methyl-2-hydroxy-, 2-hydroxy-5-chlor-, 2-hydroxy-5,7-dichlor- or 2-hydroxy-5-nitro - indolyl - 3, 2 - hydroxy - or 2 - hydroxy - 5 - methyl - thio - naphthyl - 3, 2 - hydroxy - acenaphthyl - 1 or 9 - hydroxy - phenanthryl - 10 residue.  The metal atoms may be combined with one radicle of the above formula and one of formula <FORM:0883377/IV (c)/2> where Y is NO2 or SO2NH2 and Z is H or Cl. The metal complexes are made by conventional methods, the metal free dyes being obtained by reacting an appropriate phenyl hydrazine with a dioxo compound such as isatin, thionaphthenequinone-1,2 or acenaphthene-quinone-(1,2).  The phenyl hydrazines are prepared in situ by reduction of corresponding diazo compounds.  The dyes colour wool, polyamides and polyesters from a neutral to weakly acid bath. Examples are provided of the preparation of the dyes and their use in colouring processes, red, green and blue shades being obtained.
Patent GB-441460-A (GB)
Title: Improvements in and relating to prepayment meters
IPC: G07F15/08
Filed: 1934-04-17
Abstract: 441,460. Prepayment mechanism for meters. SIEMENS-SCHUCKERTWERKE AKT.-GES., Siemensstadt, Berlin. April 17, 1934, No. 11556. Void [Abridged as open to inspection under Sect. 91 of the Acts, Dec. 8, 1934]. [Class 27] Price-changing mechanism.-In prepayment mechanism, for electricity or like meters provided with variable transmission price-changing gear accessible through a sealed flap, the gearing is provided with locking means which automatically locks the quantity mechanism as soon as the flap is opened, or alteration or removal of the gear parts commences, and again releases the quantity mechanism when the price-change alteration of gears is completed or the flap is closed. As shown in Fig. 2, the epicyclic quantity mechanism 4 controlling an electric switch is set forward by coin-actuated mechanism 5 and returned by the meter rotor 2 driving through gearing A and B, the gear A being changeable for different coins or systems of coinage and the gear B for differences in price per unit. The gear B is accessible through a lead sealed flap and comprises a detachable frame 8, Fig. 3, carrying a pair of meshing pricechange wheels 6, 7, on the spindles of which are bevel wheels 11, 12 to mesh with bevel wheels 13, 14 when the frame is in position in the meter casing. When the frame is removed for alteration of the gear, a spring 15 engages the wheel 14 to lock the quantity mechanism 4. When the frame is replaced and secured in position by headed studs 9 engaging spring sockets 10, the spindle of the wheel 7 presses back the spring 15 and releases the wheel 14. The price or the like is marked on the change wheels and is visible through a window. The correctness of the price-change may be also checked by counting the parts. The bearing frame fitted with change wheels may also be interchangeable. The gearing A is only accessible after removing the casing of the prepayment device. When an escapement gearing 16, 18, 19, Fig. 5, serves as a price transmission gear the wheel 16 being driven by a spring tending to return the quantity mechanism to zero under the control of the wheel 19, driven by the meter, and the pawl 18, removal of the wheel 19, so that it may be replaced by another with. a different number of pins, causes the wheel 16 to be locked by the pawl 18. The quantity mechanism is thus locked during alteration of the pricechange wheel 19.
Patent GB-560155-A (GB)
Title: Improvements relating to getters for electron discharge tubes
IPC: H01J37/18
Filed: 1942-08-19
Abstract: 560,155. Discharge apparatus. MULLARD RADIO VALVE CO., Ltd., and STEPHEN, R. A. Aug. 19, 1942, No. 11688. [Class 39 (i)] One or more foils of zirconium tantalum, titanium, or other material which operates as a getter when heated, are arranged in.the discharge path between the cathode and anode of an electron discharge tube, the discharge passing through an aperture in each foil which is thereby heated. Preferably the aperture is formed by cathode bombardment of a continuous foil mounted in the path of the discharge during manufacture of the tube, the foil first being degassed by heating by bombardment during pumping and then perforated by increasing the bombardment to evaporate that portion of the foil in the direct line of the discharge. The foil getters may be utilized in conjunction with alkaline earth or other getters which require to be kept remote from the discharge space. Fig. 1 shows an X-ray tube 1 having a foil 9 disposed between the cathode 2 and anode 3, the foil being held between apertured spiders 7, 8 mounted in a hood 5 for the anode. The foil may be prefabricated with a central aperture, or the latter may be formed by bombardment in the tube. In a modified construction the central portion 11, Fig. 3, of the tube envelope is of metal and carries an internal ring 15 to which the foil is clamped.
Patent GB-377202-A (GB)
Title: Improvements in or relating to air or gas compressors
IPC: F04D29/46
Filed: 1931-04-20
Abstract: 377,202. Centrifugal compressors. BRITISH THOMSON-HOUSTON . CO., Ltd., Crown House, Aldwych, London, and ASHLEY, F. W., 64, Eastlands Road, Rugby. April 20, 1931, No. 11698. Addition to 346,450. [Class 110 (i).] The invention set out in the parent Specification in which the cross sectional areas of the discharge passages of a compressor are altered by the movement of vanes G under the control of a ring A, is modified by the provision of external means to rotate the ring A. A spindle L in a boss on the casing N carries a pinion M which engages teeth on the ring A, so that rotation of the spindle operates the vanes G; when set, the spindle may be locked by the set screw O or by other means. In the case of a multistage compressor, each ring A is geared to a common shaft operated by a hand-wheel.
Patent GB-289435-A (GB)
Title: Improvements in spectacle and like frames
IPC: G02C1/08
Filed: 1928-04-20
Abstract: 289,435. American Optical Go., (Assignees of Wells, J. C.). April 27, 1927, [Convention date]. Spectacles and eye-glasses.- The divided ends of grooved lens rims for spectacles are secured together by means of two annular lugs 5 secured on the eye side of the lens rim and adapted to receive a threaded sleeve 6 having a head 7, the sleeve being held in place by a headed screw 9, thus drawing the lugs 5 together. The lugs 5 are not visible from the front of the spectacles.
Patent GB-255790-A (GB)
Title: Improvements in filaments for electric incandescent lamps or other purposes
IPC: H01K1/14
Filed: 1926-05-04
Abstract: 255,790. General Electric Co., Ltd., (Assignees of Patent-Treuhand-Ges f³r Elektrische Gluhlampen). Nov. 26, 1925, [Convention date]. Filaments.-A filament for lamps of high candle-power consists of two wire or ribbon spirals a, b wound round each other and riveted or welded together at their points of intersection f.
Patent GB-280799-A (GB)
Title: Improvements in or relating to grinding and polishing apparatus for glass, marble or the like
IPC: B24B7/24
Filed: 1927-05-02
Abstract: 280,799. Pestiaux, E. May 2, 1927. Addition to 269,600. Wheels.-The bars for use on the rotating runners of glass, marble, &c. grinding and polishing apparatus are built up from a number of short bars f placed end to end, and each having a mortise connection d or tenon connection e thereon. The connections may extend the full length of the bars, or for a portion thereof, and they engage separate counterparts in the base or platform of the runner.
Patent GB-179183-A (GB)
Title: Improvements in and relating to lifting and slewing of motor vehicles and the like
IPC: B60S9/205
Filed: 1922-04-27
Abstract: 179,183. Fiorentino, A. April 30, 1921, [Convention date]. Stands and turning appliances for vehicles.- Vehicles are permanently fitted with centrally disposed apparatus by means of which they may be lifted bodily and rotated, such apparatus comprising pivoted supporting legs, which may be lowered, so as to engage the ground, by hand gear, after which further movement is brought about by hydraulic apparatus so as to raise the vehicle. The lifting mechanism, Figs. 1 and 2, is secured to the vehicle frame by four arms H having guides K<1> for plungers K, to the lower ends of which is secured a ring A, the plunger and ring being raised or lowered by connections to a hand lever L while they are locked in position by spring detents operated by a flexible connection R from an auxiliary lever on the hand lever L. Supporting legs B having relatively movable feet Z are pivoted to a. rim D turning on a ball bearing on. the piston of an hydraulic jack which is also carried by the arms H, the legs being held in their inoperative position by hooks a;, Fig. 4, which engage an internal flange on the ring A. When in operation, the hand-lever L is first moved forward so as to lower the ring A and the legs B until the feet Z bearing on the ground. Further movement of hand lever L brings it into engagement with link N by means of which thepump P is clutched to the engine shaft and supplies oil under pressure to the ja.ck so as to raise the inner ends of the legs B and hence also the vehicle. During this operation rollers E cn the legs B bear on the under side of the ring A. The vehicle, when raised, is rotated from the engine by a. clutch F', worm gearing V, vertical shaft I and a pinion I<1> engaging teeth on the rim D.
Patent GB-707829-A (GB)
Title: Winding and hand-setting mechanism for timepieces
IPC: F16H37/00
Filed: 1952-05-09
Abstract: 707,829. Clocks and watches. ETA AKT.-GES. May 9,1952 [May 10, 1951], No. 11863/52. Class 139 Winding and hand-setting mechanism for timepieces comprises in combination a minute wheel, a minute setting wheel, a spring-actuated rocking bar, a setting- lever for rocking said bar to assume the hand-setting position and operatively connecting said two wheels and means on said lever arranged to control said bar and positively move same at least during the beginning of the disengagement of said wheels. The setting-lever 7, Fig. 1, is pivoted at 6 and carries an inwardly curved extension 32 having a pin 8 which rests in either of twoslots 11, 12 in the arm 9 of the setting-lever spring 10 in accordance with whether the rocking bar 17 is in the hand-setting or winding position respectively. On pulling out the stem 2 to the position shown in Fig. 1, the setting-lever 7 is rocked clockwise and a surface 29 thereon engages a pin 30 on the rocking bar which is thereby rocked clockwise, against a spring 27, to cause the minute setting wheel 19 to engage the minute wheel 31 and the pin 8 enters the recess 11. On depression of the stem 2 the setting-lever 7 is rocked counter-clockwise and its hook shaped end 32 engages the pin 30 to positively rock the rocking bar 17 counter-clockwise and the wheel 19 leaves the wheel 31. The spring 27 then rocks the bar 17 further counter-clockwise until the setting wheel 18 meshes with the barrel wheel 28.