baber/WOPTO huggingface dataset:
Patent GB-352528-A (GB)
Title: Improvements in or relating to evaporator coils for refrigerating apparatus
IPC: F25B39/02
Filed: 1930-04-07
Abstract: 352,528. Refrigerating. LIGHTFOOT REFRIGERATION CO., Ltd. and NOLCKEN, W. G., Bush House, Aldwych, London. April 7, 1930, No. 11030. [Class 29.] Compression systems.-In a system with a flooded evaporator and employing a refrigerant such as methyl or ethyl chloride, ir which the lubricant is soluble, the refrigerant is evaporated in successive stages at progressively increasing temperatures ir order to separate the lubricant. The evaporator may consist of a header a communicating through pipes d, e with the condenser and the suction side of the compressor respectively and having compartments connected in series by U-shaped evaporator tubes. The heat-absorbing capacity of one leg of each U-tube is increased by fins and/or by heat insulating the other leg. The concentration of the lubricant increases towards the last compartment of the header from which it is entrained and carried to the compressor by the vapour passing through slots in the pipe e. In modifications, the header is formed of a number of smaller headers connected in series by the U-tubes and a number of such evaporators at different temperatures may be connected in series. A cold accumulator n, Fig. 3, containing a low freezing-point solution, e.g. a solution of sodium chromate, may be arranged above the evaporator. The liquid refrigerant flows from the condenser through a finned pipe l traversing the cold accumulator to the inlet pipe d of the evaporator. When the compressor is shut off, vapour rises from the evaporator into the pipe l wherein it condenses and trickles back to the evaporator. The expansion valve described in Specification 324,957, [Class 29, Cooling &c.], may be used in the system.
Patent GB-579625-A (GB)
Title: Improvements in or relating to the softening of water
IPC: C02F5/02
Filed: 1944-06-09
Abstract: 579,625. Softening water. GERRARD, W. F., BANNISTER, H. W., and LIVERPOOL BORAX CO., Ltd. June 9, 1944, No. 11042. [Class 46] Water is softened by being treated in two stages first with an excess of lime whereby magnesium hardness is removed by the precipitation of magnesium hydroxide, and then after an interval of time sufficient to ensure the removal of substantially all the magnesium compounds, sodium carbonate and/or sodium bicarbonate is added to the water to remove calcium hardness. The interval between the stages is not less than thirty minutes, after which the magnesium hydroxide is removed by filtration. Nuclei to assist in the precipitation of calcium carbonate may be provided.
Patent GB-1002051-A (GB)
Title: Improvements relating to internal combustion engines
IPC: F02B37/18
Filed: 1962-03-22
Abstract: 1,002,051. I.C. engine charge pumps. GARRETT CORPORATION. March 22,1962 [March 29, 1961], No. 11042/62. Heading FIB. [Also in Division G3] A by-pass valve 11 controlling the exhaust supply to a turbine 1 driving a compressor 3 is controlled in accordance with the density in the compressor delivery pipe 4 by a pressure and temperature responsive device 7 situated in the delivery pipe 4. The valve 11 is connected to a spring-loaded piston 24, Fig. 2, to which hydraulic fluid is supplied by a pump 16, the pressure on the piston 24 being controlled by a valve 40, Fig. 3, in a bleed pipe 15 controlled by the density responsive device 7. This device comprises a bellows 33, Fig. 3, defining a space 35 filled with nitrogen and a space 34 open to the pressure in the compressor delivery pipe 4. If the pressure in pipe 4 decreases, or the temperature increases, valve 40 moves towards its seat to throttle the flow of hydraulic fluid in the bleed pipe 15 and increase the pressure on piston 24 to close the by-pass valve 11 and increase the turbine speed to restore the pressure in pipe 4 to the desired value. The hydraulic circuit may be replaced by an equivalent pneumatic or electrical system.
Patent GB-863547-A (GB)
Title: 3-mercapto-phenthiazine
IPC: C07D417/06
Filed: 1957-04-04
Abstract: The invention comprises 3-methylthiophenthiazine and the preparation thereof by reacting 3-methylthiodiphenylamine with sulphur or a sulphur di-halide and separating the resulting structural isomers. The process may be combined with one wherein 3-methylthionitrobenzene is reduced to the amine, the product condensed with an ohalo-benzoic acid and the condensation product decarboxylated to give 3-methylthiodiphenylamine, and/or one wherein the 3-methylthiophenthiazine is condensed with a compound of the general formula:  <FORM:0863547/IV (b)/1> wherein X is a chlorine or bromine atom to produce a compound of the general formula:  <FORM:0863547/IV (b)/2> Specifications 802,726 and 863,552 are referred to.  Reference has been directed by the Comptroller to Specification 802,726.ALSO:Pharmaceutical compositions comprise 3-methylthiophenthiazine and an inert carrier.  Specification 802,726 and 863,552 are referred to.  Reference has been directed by the Comptroller to Specification 802,726.
Patent GB-724726-A (GB)
Title: Improvements in or relating to by-pass arrangements for filters
IPC: B01D35/147
Filed: 1953-04-22
Abstract: 724,726. Lubricating. PUROLATOR PRODUCTS, Inc. April 22, 1953 [June 19, 1952], No. 11069/53, Class 12 (3). An arrangement for by-passing a filter for lubricant to be supplied to bearings comprises a base with passages for connection to a pump and to the bearings, a filter supported by the base, a chamber communicating with the inlet passageway and having a by-pass opening communicating with the inlet passageway, and valve means movable in said chamber and such that at pressure values of lubricant in said chamber above a predetermined value, the lubricant flows through the filter on its way from the pump to the bearings, whereas when the pressure of lubricant falls below said value the by-pass opening is put in communication with the inlet passageway so that lubricant by-passes the filter. In the arrangement shown, an engine block 10 is provided with passageways 11, 12 communicating respectively with a pump and with the bearings. A base 13 is secured to the block 10 with recesses 14, 15 registering respectively with the passageways 11, 12. The base 13 has secured to its upper surface a filter 44. The recess 14 leads to a passageway 26 containing a piston valve 28 which is opened at a pressure of about ¢ to 1 lb. per square inch. On the upper side of the valve is a passageway 31 communicating at one end with the outside of the filter and at the other end leading to a valve chamber 32 provided with two oppositely biased pistons 34, 35. The spring 36 of piston 34 is stronger than the spring 37. When lubricant is supplied at or above a predetermined pressure e.g. 20 lbs. per square inch, valve 35 is kept on its seat 39, thereby closing a by-pass outlet 40a leading to the bearings, and the lubricant is forced through the filter. If the pressure falls below the predetermined value the stronger spring acts through a rod 38 connected to valve 34, to open the valve 35 thereby uncovering the opening 40a and allowing lubricant to flow to the bearings without passing through the filter.
Patent GB-830581-A (GB)
Title: A friction member
IPC: F16D13/64
Filed: 1958-04-08
Abstract: 830,581. Friction clutches. RAYBESTOSMANHATTAN Inc. April 8, 1958, No. 11073/58. Class 80 (2). A friction clutch plate comprising an annular disc 10 with friction composition facings 11 bonded to each side has a plurality of circumferential edge portions 15 partially severed from the plate alternate positions being transversely bowed to provide a self-separating action to the clutch. The portions 15 are partially served from the plate by arcuate slots 16. The friction surface may be composed of 60-70% copper; 10-25% iron, lead or tin; and 5-25% non-metallic friction modifying materials such as graphite, silica, ceramics, &c. The plate may be used in an oil immersed clutch in which case the facing may be grooved.
Patent GB-509446-A (GB)
Title: Improvements in wheels fitted with pneumatic tyres
IPC: B60B23/10
Filed: 1938-04-11
Abstract: 509,446. Vehicle wheels. FRANKLIN, E. A. April 11, 1938, No. 11096. [Class 144 (ii)] To facilitate the attachment of pneumatic tyres to the wheels of tractor and like vehicles, the rim is formed in halves, each flanged to engage the periphery and side face of the wheel body, and independently bolted to the latter, the heads of the bolts being housed in annular recesses provided between the rim-flanges and the wheel. In the form shown in Fig. 7, the rim-halves 8 have axial flanges 12 which seat, in abutment, on the periphery of the wheel-body 7, and radial flanges 14. The parts 7, 14 are profiled to form housings 7a for the heads 21 of the two sets of bolts 19 by which the corresponding rim-halves are secured. The shouldered portions 9 of the latter may be of graded diameters to fit different sized tyres on a standard wheel-body. If, as shown in Fig. 8, the tyre-head diameter is considerably greater than that of the wheel, an additional set of bolts 23a may be provided for clamping the extended portions of the rim-halves.
Patent GB-554368-A (GB)
Title: Improvements in or relating to garments of personal wear
IPC: A41F9/02
Filed: 1942-08-11
Abstract: 554,368. Wearing-apparel. GOLDSON, E. Aug. 11, 1942, No. 11209. [Class 141] In a belted garment, such as a coat, the belt a has sewn on its inside portion two tabs b each carrying a member c of a snap fastening. The tabs are adapted to be passed through slits f in the side seams d of the coat, and to be secured to the complementary members c<SP>1</SP> of the fastening on the inside of the coat. In a modified arrangement, the tabs, after being passed through the slits f are secured to one another by a snap fastening, the members c<SP>1</SP> on the inside of the coat being dispensed with.
Patent GB-930950-A (GB)
Title: New trifluoromethyl salicylamides
IPC: C07C233/12
Filed: 1962-03-23
Abstract: The invention comprises salicyclic acid arylamides containing at least two trifluoromethyl groups, and which may also contain halogen atoms and/or nitro groups; and their preparation by reaction between a salicylic acid or a functional derivative thereof and an arylamine, either or both reactants being suitably substituted.  The functional derivative of the salicylic acid may be an ester or halide; or a corresponding acylsalicylic acid or derivative may be used, the acyl residue subsequently being split off.  The compounds of the invention are bactericides (see Group VI).  Specification 727,343 is referred to.ALSO:The invention comprises disinfectants containing as active ingredient a salicylic acid arylamide having at least two trifluoromethyl groups, and optionally also halogen atoms and/or nitro groups (see Group IV (b)).  The disinfectants are admixed with washing agents, cleaning agents, detergents or cosmetics. Specification 727,343 is referred to.
Patent GB-918280-A (GB)
Title: Improvements in or relating to water sprayers for spin dryers
Inventor: THOMPSON THOMAS WILLIAM
IPC: B05B15/65
Filed: 1960-03-30
Abstract: 918,280. Rinsing. GENERAL ELECTRIC CO. Ltd. March 14, 1961 [March 30, 1960], No. 11229/60. Class 138 (2). [Also in Group XXIX] A rinsing attachment for a spin dryer consists of a pipe 1 with a nozzle 3 at one end, and a pressure relief valve assembly 6 and a tap con nectar 4 at the other. The assembly includes a branch 7 housing a valve body 9 with a seating 11 against which a valve member 12 is urged by a spring 15. The nozzle includes a slightly converging passage leading into a diverging part 23 with a central constriction 24. In operation, the connector 4 is fitted over a liquid supply tap and the nozzle is plugged into a hole in the lid of the dryer with a flange 21 bearing against the lid. The tap is adjusted until the liquid just drips from the valve whereupon a high pressure jet is produced in the centre of a flat spray of relatively low pressure.
Patent GB-863981-A (GB)
Title: Vehicle suspension system
Inventor: ASPENBERG ERIK VILHELM
IPC: B61F5/42
Filed: 1957-04-05
Abstract: 863,981. Railway vehicle undercarriages; cars, continuous forming trains. SVENSKA JARNVAGSVERKSTADERNA A.B. April 5, 1957, No. 11259/57. Classes 103(4) and 103(6). The adjacent wheel and axle sets 2, 3 of two two-axled rail vehicles having frame members 1, 6, are connected together by coupling heads 21 so as to form a fourwheeled unit, each of the connected axles 3 being connected to the respective vehicle by rubber springs 15, 16 which are capable of both vertical and horizontal deflection so that when the vehicles negotiate a curve the unit rotates relative to the vehicles about a vertical axis. Each axle end is mounted on a yoke 4 on which rest, with the interjacent springs 15, 16, levers 14 on a shaft 7. Each shaft 7, is rotatably mounted at 8 in the frame of the vehicle, and is fixed to a torsion rod 5 in turn secured to a hub 10 rotatable in a sleeve 12 attached to the frame member 6. The hub is adjustably connected to the vehicle by a lever 11. Each coupling head is movable in a sleeve 30 attached to the respective axle 3 and within the sleeve the head is resiliently connected to a draw and push rod 20, as described in Specification 855,927. Specification 829,368 also is referred to.
Patent GB-1049341-A (GB)
Title: Flame retardant composition and process
IPC: C08G79/02
Filed: 1963-03-21
Abstract: A composition for flame-proofing cellulosic materials comprises a polyvinyl halide-containing latex; a resinous precondensate formed by the reaction of tetrakis (hydroxy methyl) phosphonium chloride, urea, and formaldehyde; and antimony oxide.  The components may be dispersed in a C1- 6 aliphatic alcohol, e.g. isopropyl alcohol.  The composition may contain 10-55% wt. solids, and may also contain up to 3% wt. of each of a protective colloid, e.g. hydroxyethyl cellulose, and a catalyst, e.g. citric acid.  Flame-retardant paper may be formed by impregnating the paper with the composition and drying; the resin add-on may be, e.g. 20-40% by wt.ALSO:Flame-retardant paper is formed by impregnating the paper with a composition comprising a polyvinyl halide containing latex, a resinous precondensate formed by the reaction of tetrakis (hydroxy methyl) phosphonium chloride, urea, and formaldehyde; and antimony oxide; and drying.  The composition components may be dispersed in a lower aliphatic alcohol, e.g. isopropyl alcohol. The composition may contain 10-55% wt. solids, and may also contain up to 3% wt. of each of a protective colloid, e.g. hydroxyethyl cellulose, and a catalyst, e.g. citric acid.  The resin add-on to the paper may be e.g. 20-40% wt.
Patent GB-1334200-A (GB)
Title: Dispensing cap for valved pressurised containers
IPC: B65D83/16
Filed: 1972-03-10
Abstract: 1334200 Pressurized dispensing containers L'OREAL 10 March 1972 [12 March 1971] 11317/72 Heading F1R A dispensing cap for a pressurized dispensing container comprises an annular member 4 having an inwardly directed flange 6 and adapted to be mounted an a container 1, a cover member 9 the top periphery of which engages the flange 6, and an L-shaped hollow dispensing member 14 on which the cover 9 is pivoted, the member 14 having a seat 15 engaged by a projection 13 on the cover 9. The arrangement is such that pressure at any point on the top of the cover establishes a lever to depress the member 14. The arm 21 of the member 14 passes through windows 8, 22 in the members 4, 9. The other end of the member 14 includes a valve engaging tube 17 and a tube 16 which is engageable with the valve pedestal on a container to guide the member 14. Arms 23 secured to the cover 9 pass through further windows 7 and are secured to an operating ring 24.
Patent GB-907649-A (GB)
Title: Improvements relating to the detection of sudden speed changes
Inventor: BETTS MAX WILLIAM
IPC: G01N3/06
Filed: 1960-03-31
Abstract: 907,649. Measuring speed photo-electrically. COURTAULDS Ltd. March 30, 1961 [March 31, 1960], No. 11348/60. Class 40 (3). [Also in Group XL (c)] Sudden speed changes are detected by apparatus comprising a body having equallyspaced features of identical length, a detector whose condition is changed while a feature passes it, and a device which compares the duration of the change with a standard time and produces a signal when said duration and standard time are in a predetermined relation. A filament 3, Fig. 1, is stretched to breaking point by a jaw 2 carrying a comb 4 intercepting light from a source 6 to a photo-cell 5. The square-wave output from cell 5 is differentiated and connected to two diodes D 1 , D 2 , Fig. 2. The positive pulses pass diode D 1  to switch multivibrator V 1 , V 2  into its unstable state whence it returns after a predetermined time. If the negative pulse arrives before multivibrator V 1 , V 2  has reset, indicating that jaw 2 has speeded up due to the breaking of filament 3, the negative pulse sets the bi-stable multivibrator V 3 , V 4  to energize a relay R. Specification 872,475 is referred to.
Patent GB-549034-A (GB)
Title: Improvements relating to feed water heaters
IPC: F22D1/02
Filed: 1941-09-08
Abstract: 549,034. Cleaning pipes and tubes : preventing admission of air to furnace flues. BURTON, Ltd., R., and BURTON, H. Sept. 8, 1941, No. 11435 and 16039. [Class 99 (ii)] [Also in Groups XII and XXVI] To prevent the entrance of air through a cleaning-chain aperture C at the top of a flue A containing a feedwater heater br through an aperture in the walls of any other flue or passage in which the pressure is less than the outside pressure, the aperture opens into a suction chamber D which is also open to the outside pressure and is connected by a pipe E to the flue beyond the feedheater or to any other source of pressure lower than that in the flue or passage A.
Patent GB-583059-A (GB)
Title: Improvements in or connected with indicating mechanism for use with platform weighing scales
IPC: G01G1/28
Filed: 1944-06-17
Abstract: 583,059. Weighing-apparatus. AVERY, Ltd., W. & T., and LEESON, A. June 17, 1944, No. 11562. [Class 143] In a platform weighing scale with a changeover capacity unit, the change-over is effected by an electric motor r which simultaneously alters the setting of a multi-slotted shutter q which determines the range of weight indicia to be projected, by a source of light in a projection box o, onto a screen p from a chart m carried by the pendulous lever l. In the construction shown the setting of the capacity weights n, n<1> is effected by pivoted arms s, s<1> engaged by cams on a shaft rotated by the motor r, the shaft having a third cam which rocks the spindle q<2> carrying the shutter q through a bell-crank lever q<4> and link q<3>. A poiseweight f<1> on the tare beam f is moved by a handwheel g on a spindle carrying a drum h to which the poiseweight is connected by flexible ribbons. A transparent peripheral flange h<2> on the drum is marked with weight-indicia projected onto a subsidiary screen p<1> to indicate the tareweight.
Patent GB-551857-A (GB)
Title: Acid resisting and like tiles and manner of laying and fixing same
IPC: E04F15/08
Filed: 1941-09-10
Abstract: 551,857. Facing tiles. HAWORTH (ACIDRESISTING CEMENT) Ltd., F., HAWORTH, T. R., and HAWORTH, R. Sept. 10, 1941, No. 11580. [Class 87(i)] The edges of tiles a for lining acid resisting structures are formed with plain abutting surfaces a<SP>1</SP> at the back part of their thickness and with sloping or curved surfaces a<SP>3</SP> at the front part of their thickness thus providiiig a gap open at the front side of the tile for the entry of acid-resisting cement.
Patent GB-455230-A (GB)
Title: Improvements in oil feeding systems for internal combustion engines
IPC: F01M3/04
Filed: 1935-04-15
Abstract: 455,230. Feeding lubricating or corrosion -inhibiting oils to engine cylinders. CLEMENTSON, J. F. J., 7, Skeppsbron, Malm÷, Sweden. April 15, 1935, No. 11603. [Class 12 (iii)] An internal-combustion engine has means for feeding an oil, e.g. a corrosion-inhibiting oil, to the cylinders at starting, the supply being gradually reduced as the engine temperature rises. As shown, oil flows under gravity from a vessel 1 through a passage 3 into a chamber 2 where it mixes with air entering through a port 37. A pipe 34 conveys the mixture of air and oil from the chamber 2 to the intake pipe B of the engine. The passage 3 is controlled by valves 4, 5. The valve 4 is urged towards closed position by a spring 12 and has a diaphragm 8. Oil from the pressure feed lubricating system is led through a pipe 13 to a chamber 11 and acts on the diaphragm 8 so that the valve 4 is held open when the engine is running. The valve 5 is of the needle type and is held in open position by a spring 22. The spring tension can be adjusted by a screw 29 and the extent of valve opening is limited by a nut 23 abutting the end of an adjustable sleeve 25. The valve rod 24 passes through a chamber 16 through which the engine cooling water is circulated. A thermostatic bi-metallic spring 30 is mounted in the chamber 16 and carries a forked arm engageable with a nut 31 on the valve stem 24. In operation, as the temperature of the cooling water rises, the spring 30 moves the valve 5 to reduce the oil flow through the passage 3. Finally, the end of the valve 5 abuts an adjustable stop 32. The mixing chamber 2 has inspection holes 35 and glass tube 36.
Patent GB-665481-A (GB)
Title: Improvements relating to treatment of water with lime and/or soda
IPC: C02F5/02
Filed: 1949-05-02
Abstract: A process for softening water in the presence of previously-formed precipitate comprises adding to the water between 0.1 and 5 parts per million of a glassy form of sodium polyphosphate of Na2O/P2O5 molecular ratio 1.12 and lime and/or soda to precipitate the hardness-forming constituents.  The process is preferably one in which the water is caused to flow upwards at a speed high enough to maintain the previously-formed precipitate in suspension, for example, a sludge-blanket or inverted cone process.  The addition of the polyphosphate serves to increase the amount of calcium carbonate and magnesium hydroxide which crystallizes from the water on to the existing particles.  The amount added is preferably between 0.3 and 3 parts per million.  In an example a 1 per cent sodium carbonate solution containing 6 parts per million of the polyphosphate was added continuously with water of a high non-alkaline calcium hardness to a vessel containing 100 parts by weight of cold water and 8 parts by weight of calcium carbonate grains of particle size between 85 and 100 mesh B.S.S. sieve.  In another example the addition of 0.5 p.p.m. of the polyphosphate to the raw water entering a sludge blanket plant reduced the amount of suspended matter in the water from 18 to 8 parts per million. The polyphosphate may be added to the water before or at the same time as the other re-agents, or mixed with them, or it may be added as an aqueous solution.