baber/WOPTO huggingface dataset:
Patent GB-754262-A (GB)
Title: Improvements relating to gas filters
IPC: B01D46/28
Filed: 1954-04-23
Abstract: 754,262. Washing dust from gases. OSPELT, G. April 23, 1954 [April 24, 1953 ; July 27, 1953], No. 11800/54. Class 55(2). [Also in Group XXVIII] Apparatus for removing dust from gases comprises a duct for the dust-laden gases in which a disc-shaped brush is adapted to revolve and which extends across the entire free area of the duct and into an annular enlargement of the duct, the arrangement being such that dust particles precipitated on the bristles of the brush are discharged into and removed from the annular enlargement of the duct. The brush may operate dry or wet and jets of oil or water or a gas may be sprayed or directed onto the bristles of the brush, preferably from a position in the centre of the brush. The form of the brush is chosen in relation to the nature of the dust to be removed and the gases from which they are to be removed. Thus the bristles may consist of filaments of textile fibres, synthetic resin fibres, spring steel wires, acid-resistant wires or of a material capable of exerting a physico-chemical influence upon the gas under treatment. The bristles may be straight or of waved form and in the latter case they may be stretched centrifugally when the brush is revolved rapidly. Also the bristles may be set uniformly on the brush or on a screw-shaped plan and they may be secured to give any desired size of space between individual bristles and be arranged to oscillate during operation. Two or more brushes may be arranged in series in a duct and the brushes may be of two or more types. As shown in Fig. 1 a brush 2 is mounted on a spindle 4 of an electric motor 5 arranged within a gas duct 8 and secured thereto by a spider 6. The tips of the bristles of the brush extend into a housing 3 clamped between annular flanges 7 of sections of the gas duct, the housing 3 being provided with a withdrawal conduit 13 for the removal of dust. The conduit 13 leads into a hopper 13b. In modifications a brush or a series of brushes may be mounted in the curved portion of an elbowed conduit. When a series of brushes is provided the brushes may be mounted on a common shaft or to rotate independently of each other.
Patent GB-919803-A (GB)
Title: Improvements in and relating to the charging and discharging of multi-level presses
IPC: B30B7/02
Filed: 1960-04-04
Abstract: 919,803. Endless conveyers. SIEMPELKAMP, E. April 4, 1960, No. 11903/60. Class 78 (1). [Also in Group V] Roughly shaped wood-chip sheets 13 pass from conveyer belt 11 down a pivoted platform 22 on to one of the conveyer belts 23, 24 of a stacking station 20. The sheets are then passed from the belts 23, 24 on to the conveyer belts 25 of an elevatable stacking rack 26, from which they are transferred to the belt units 28 of a stationary multi-level conveyer rack 27. Units 28 are extended on arms 46 and the sheets 13 are then transferred on to trays 40 on a truck 31 on leftward movement of the units as the belts 28<SP>1</SP> are rotated, and the loaded truck delivers the sheets to a press and later to a pair of unloading conveyer belts 53, 54, Fig. 5. Specification 919,802 is referred to.
Patent GB-474240-A (GB)
Title: Manufacture of a new phenol derivative and its use for the preparation of mineral oil compositions
IPC: C10M131/12
Filed: 1936-04-27
Abstract: Pour-point depressants are obtained by condensing phenol (C6H5OH) with chlorinated paraffin wax in presence of aluminium chloride at about 150 DEG  F. and slowly raising the temperature to about 350 DEG F. until evolution of hydrochloric acid ceases.  Preferably, chlorine is bubbled through a paraffin wax of M.P. 120--130 DEG  F. and m.w. 300 at about 200 DEG  F. until 12--14 per cent is absorbed; 1 molecular proportion of phenol is then mixed with a quantity of the chlorinated wax equivalent to 3--4 atomic proportions of chlorine, and 3 per cent--relative to the chlor wax--of aluminium chloride gradually added at 150 DEG  F. with active stirring; the temperature is raised slowly to about 250 DEG  F., and thence to 350 DEG  F. at about 1 DEG  F. per min.  The product is rendered more stable and effective by dissolving out free or combined aluminium and chlorine by repeated washing at about 175 DEG  F. with water containing an alcohol, e.g. 2 per cent butanol.  British Specification 401,341 and U.S.A. Specification 1,815,022 are referred to.ALSO:The pour-point of wax-containing mineral oils is lowered by adding the product obtained by condensing phenol (C6H5OH) with chlorinated paraffin wax in presence of aluminium chloride at about 150 DEG  F., and slowly raising the temperature to about 350 DEG  F., until evolution of hydrochloric acid ceases.  Preferably, chlorine is bubbled through a paraffin wax of M.P. 120--130 DEG  F. and m.w. 300 at about 200 DEG F. until 12--14 per cent is absorbed; 1 molecular proportion of phenol is then mixed with a quantity of the chlorinated wax equivalent to 3--4 atomic proportions of chlorine, and 3 per cent (relative to the chlorwax) of aluminium chloride gradually added at 150 DEG  F. with active stirring; the temperature is raised slowly to about 250 DEG  F., and thence to 350 DEG  F. at about 1 DEG  F., per minute.  The product is rendered more stable and effective by dissolving out free or combined aluminium and chlorine by repeated washing at about 175 DEG  F., with water containing an alcohol, e.g. 2 per cent butanol. \ba1/8\be--\ba1/2\be per cent is added to a motor oil. British Specification 401,341 and U.S.A. Specification 1,815,022 are referred to.
Patent GB-440257-A (GB)
Title: Improvements in or relating to electrically operated clockwork mechanism
IPC: G04C3/06
Filed: 1934-04-20
Abstract: 440,257. Electric clocks. LANFRANCONI, F. A., 6, Lancaster Gate Terrace, London. April 20, 1934, Nos. 11976 and 24107. [Class 139] In a clockwork mechanism, the balance comprises a permanently magnetized disc which projects into the interior of a solenoid and coacts therewith to maintain the oscillations of the balance which drives the time shaft. As shown, applied to a clock, the balance comprises a steel disc 9, having permanent magnetic poles at the ends of a diameter, mounted on a staff 11 and substantially half enclosed by the solenoid 6 contained in a casing 13 carrying the dial 14. The balance spring 10 is provided with a regulator arm (not shown), operable from outside the clock casing. During clockwise rotation of the balance, Fig. 3, a lug 16 on the staff 11 engages the hump in a leaf spring 17, fixed at 20 to the free end of a leaf-spring support 18 secured at 25 to an insulated block 19, whereby the spring 18 is moved to close contacts 21, 22 to energize the solenoid, and the spring 17 is stressed (elongated) to advance a ratchet wheel 15 which drives the hands. A pawl 23 prevents retrograde movement of the ratchet wheel. During anticlockwise rotation of the balance the springs 17, 18 are bent by the lug 16 without closing the contacts 21, 22, or advancing the ratchet wheel. The solenoid is energized when the balance is in the " neutral " position with its magnetic axis at 45‹ to the axis of the solenoid. In a modification the spring 17 is replaced by a pair of hinged arms connected by a spring to function in a similar manner. Again the spring 17 may be mounted directly on the block 19, Fig. 5, its free end coacting with a spring arm 24 carrying contact 21. In this case the solenoid is energized during each swing of the balance, but the lug 16 may be in the form of a pivoted spring- pressed pawl so as to move idly past the spring 17 in one direction, if energization of the solenoid is desired only once during a complete oscillation. According to the first Provisional Specification the magnetic axis of the disc may be perpendicular to that of the solenoid when in its neutral position. Further two or more solenoids may be used coacting with one or more armatures and excited through one or more switches. According to the second Provisional Specification the actuating member (17) may comprise a spring-biassed rigid lever of right-angled form coacting with a pivotal-sprung pawl on the balance spindle, and the armature or armatures on the balance need not be permanently magnetized.
Patent GB-620030-A (GB)
Title: Preparation of guanidine salts
Filed: 1945-05-11
Abstract: Guanidine salts are prepared by the fusion of an ammonium salt with a cyanamide salt wherein the fusion is effected in the presence of urea in an amount at least equal to 15 per cent of the weight of the ammonium salt to reduce the fusion temperature of said ammonium salt to below about 120 DEG  C., there being not more than 0.5 per cent water present.  Preferably, the amount of urea present is from 15 to 45 per cent, the fused reaction mixture being maintained at a temperature within the range 110-135 DEG  C. Under these conditions the reaction mixture is non-corrosive towards stainless steel and the substantial absence of water allows the use of thin-walled reaction vessels.  Generally, the cyanamide salt, for example, calcium cyanamide, is added to the fused urea-ammonium salt mixture. Formation of dicyandiamide is minimized by limiting the period of heating, after the initial reaction, to one hour or the total period of addition and heating to not more than two hours.  An excess of the ammonium salt may be used.  In an example: nitrolime is slowly added to a fused mixture of urea and ammonium nitrate at 120 DEG  C., and the resulting product is dissolved in water, the calcium present removed as the carbonate and the solution then cooled to crystallise out the guanidine nitrate which is removed.  The final filtrate containing the urea is evaporated to dryness and, after fortification with additional ammonium salts, may be recycled in the process. Specification 507,498 and U.S.A. Specification 2,109,934 are referred to.
Patent GB-693197-A (GB)
Title: An electrically heated soldering appliance
IPC: B23K1/018
Filed: 1951-05-23
Abstract: 693,197. Soldering and brazing. CARLSSON, D. I., and KLINGBERG, O. H. May 23, 1951 [Nov. 18, 1950], No. 12021/51. Class 83 (iv). [Also in Group XI] A soldering iron has a narrow axial channel 4 in the bit 3 which is fastened on one end of a tubular container 1 for molten soldering metal heated by an electric resistor 2 around the container, the other end 8 of which is traversed by an air pipe 9 extending into the container and connected to a compressible air chamber 16, which on compression forces metal through the channel 4 and on subsequent self - expansion sucks back any excess metal. The air chamber 16 carries a piston 17 with an outer rod 19 and finger grip 20 for operation while holding the butt-like handle 12. A spring 18 within the chamber 16 returns the piston on release of the grip 20 and thereby excess solder is sucked back into the container 1, which may be filled by pressing the pointed bit 3 against a bar of soldering metal. An outer sleeve 7 around the resistance 2 has at its inner end a threaded plug 10 and at its outer end an inward flange 6 engaging a flange 5 on the bit thereby held firmly against the end of the tubular container 1. The resistance 2 is connected through leads 14 embedded in insulating material in a tube 11 on the handle to a flexible supply cable 15. A cover 8 may abut against an inward flange on the sleeve 7, or may be screwed into the sleeve 7. The copper bit 3 may be held by a hub screwed over the outer end of the sleeve 7. In Fig. 2 the air chamber is a rubber or like elastic bulb 26 held between a fixed part of an insulating handle 24 and a movable plate 30, which is displaced by a lever 29 pivoted at 28 and actuated by the lever arm 27. The handle 24 is formed under pressure with a flange 31 and receives a screw plug 23 which has passages for the supply wires 14 and an axial channel 25 connected through the air line 9 to the bulb 26.
Patent GB-812293-A (GB)
Title: Improvements in or relating to rake wheels or cultivator wheels
IPC: A01D80/00
Filed: 1956-04-19
Abstract: 812,293. Haymaking machines; rotary cultivators. VAN DER LELY N.V., C. April 19, 1956 [April 27, 1955], No. 12021/56. Classes 6(1) and 6(3). Relates to haymaking machines or rotary cultivators of the kind having rake-wheels provided with a plurality of tines each tine being integral with a supporting part extending inwardly towards the wheel-hub. According to the invention, the supporting parts all contact their neighbours to provide mutual support and means are provided for holding the parts in their mutually-supporting positions. The tines are integral with spokes 10, which, as shown in Fig. 3, are clamped between discs 6 forming part of the hub, the inner ends of the spokes being formed with acute bends 9 so as to produce two annular regions 15, 16 wherein the spokes abut one another to prevent relative movement. Pins 5 on one disc pass through holes in the other when the discs are clamped together. The upper disc may be replaced by a set of sectors separately bolted to the lower disc to facilitate the replacement of individual tines. In Fig. 5, the tines 34 have loops 33 perpendicular to them, the tines being in close contact at their loops and thereafter having right-angle bends 32 so that the inner ends enter holes in a pair of discs 27, 28 on the hub. The tines are secured in position by a second disc 37 which is clamped to the disc 28 by a nut 38 on the hub 24. In Fig. 6, the tines 59 extend in a frusto-conical formation, are bent at 58 and 56 and have curved ends 53 which are clamped between discs 47, 43 on the hub. The bends 58 are all in contact and the curved ends 53 are also in contact.
Patent GB-877955-A (GB)
Title: Granular potassium metaphosphate
Inventor: RAISTRICK BERNARD
IPC: H01H35/24
Filed: 1960-04-05
Abstract: Potassium metaphosphate (KPO3)n is prepared by contacting potassium sulphate with phosphoric acid at a temperature below the fusion point of the product in the presence of a moving mass of inert particles thereby obtaining a granular product.  The inert particles are preferably preformed potassium metaphosphate.  The reaction is preferably effected at 450-550 DEG C. and the reaction conditions and apparatus are similar to those described in the parent Specification. According to an example, granular metaphosphate was placed in a horizontal cylindrical furnace externally heated to maintain the granules at 500 DEG C.  A solution of potassium sulphate and phosphoric acid at 80 DEG C. was sprayed on to the hot bed and after spraying had stopped the bed was maintained at 500 DEG C. to ensure complete reaction.
Patent GB-582569-A (GB)
Title: Improvements in or relating to the cylinders of internal combustion engines of the opposed piston type
IPC: F02F1/18
Filed: 1945-05-14
Abstract: 582,569. Cooling and construction of cylinders. SULZER FRERES SOC. ANON. May 14, 1945, No. 12070. Convention date, June 7, 1944. [Class 7 (ii)] In an opposed piston engine, in which each cylinder has liners 1, 2 connected by a ring 5, cavities 13 are provided behind each joint, the cavities being connected with the liner cooling spaces 16 and together by passages 14, for the flow of a coolant, preferably water. The cavities are either annular or divided into separate spaces. They are protected by sealing rings 19 of elastic material, e.g., rubber. The passages 14 are preferably inclined inwards as shown. The ring 5 may be lined with a loosely-fitting ring made of a heat-resistant material, e.g., a high alloy steel, or a ceramic substance. The cylinder liners are held together by tie-bolts 11 preferably screwed into the liner containing the inlet ports 10. The liner containing the exhaust ports 9, and the ring 5, can thus be removed without unscrewing the tie-bolts.
Patent GB-1094631-A (GB)
Title: Improvements in and relating to magnetic sealing strips for containers
IPC: F25D23/08
Filed: 1966-03-18
Abstract: 1,094,631. Windows; doors; gates; &c. M. BAERMANN. March 18, 1966 [March 18, 1965; Nov. 26, 1965], No. 12087/66. Heading E1J. A magnetic sealing strip for a refrigerator or the like comprises a flexible permanently magnetic strip 6 supported by a resilient strip 8 within a shaped strip 1 screwed to the refrigerator, the strip 1 having lateral projections 9 which abut projections 7 on the magnetic strip and retain it within the strip 1. When the refrigerator door is closed the ferromagnetic casing 10 of the door depresses the magnet resiliently. A U-shaped bar 5 is inserted in the strip 1 for rigidity. The strip 8 is made of plastics foam and may project from the strip 1, it may be supported on a resilient bellows  like member (Figs. 4-6, not shown). The strip 1 may be mounted on a sealing strip with compressible end portions. Strip 1 is made of thermoplastics material. Strips 1 and 6 have obliquely cut ends and bores 11 through which right angled connecting wires are passed to secure the corners. The exterior surface of the strip 1 may have a strip of coloured adhesive tape attached thereto.
Patent GB-696851-A (GB)
Title: Improvements in and relating to building constructions
IPC: E04B2/72
Filed: 1951-05-25
Abstract: 696,851. Building slabs; walls. DOANIDES. P. J. Mav 25, 1951 [May 27, 1950]. No. 12257/51. Classes 20(iv) and 87(i) A wall comprises slabs 2 which are provided on their upper and/or lower faces with semi-frustoconical or semi-cylindrical projections 1 adjacent the grooved side faces 4 to receive metal rings for coupling adjacent slabs together or slabs to posts. The slabs may be hollow and may be filled with exfoliated vermiculite, asbestos, slag wool or aerated concrete.
Patent GB-1000410-A (GB)
Title: Amino-androstanes
IPC: C07J41/00
Filed: 1963-03-28
Abstract: The invention comprises compounds of formula <FORM:1000410/C2/1> wherein B = N is an amino, alkylamino, cycloalkylamino, alkanoylamino, carbamylamino, N,N - dialkylcarbamylamino, dialkylaminoalkylamino, tertiary amino, tertiary amino-N-oxide, N-alkanoylalkylamino, N-carbamylalkylamino or N - (dialkylaminoalkyl) - alkylamino group, in which the alkyl moieties contain 1 to 6 carbon atoms, X is a methylene, hydroxymethylene or carbonyl group, R is a hydrogen atom or an alkyl group having 1 to 4 carbon atoms, and Z is a methylene b  - hydroxymethylene, b -acyloxymethylene, carbonyl, a -alkyl or ethynyl - b  - hydroxymethylene, a  - tertiaryaminomethylethyryl - b  - hydroxymethylene, oximinomethylene or carboxyalkyloximinomethylene group, the last mentioned alkyl group having 1 to 4 carbon atoms, acid addition and quaternary salts thereof, and their preparation by (a) reaction of a 3-keto compound with a formamide derivative of formula B = N-CO.H, or with an amine of formula B = NH under hydrogenation conditions, (b) hydrogenation of the corresponding enamines, (c) reduction of a 3-oxime or a Schiff's base, (d) heating a 3-arylsulphonyloxy compound with a secondary amine B = NH, (e) treating a 3-amino compound with nitrourea to give a carbamylamino compound, (f) N-methylating a 3-substituent, (g) oxidizing a 3-tertiary amine by a peroxide to the amine oxide, (h) 3- and/or 17-acylation, (i) reduction of an N-alkanoyl-group to an N-alkyl group using metal hydrides, (j) converting a 17-keto compound to the oxime, to a 17b -hydroxy compound by oxidation, to a 17b -hydroxy-17a  alkyl or ethynyl compound by a Grignard reaction or an alkali metal acetylide, or to a 17b -hydroxy - 17a  - tertiaryaminomethylethylyl compound by reaction with a 3-tertiaryamino-1-propyl and a methyl magnesium halide or an alkali metal amide, or to a 17-unsubstituted compound by alkaline decomposition of a hydrazone, semicarbazone or azine.  The compounds of the invention have coronary-dilatant, anti-hypertensive, blood cholesterol-lowering and lipoprotein ratio-varying activity.
Patent GB-1469884-A (GB)
Title: Cardboard wrapping
IPC: B65D71/00
Filed: 1974-03-20
Abstract: 1469884 Carrier package LA ROCHETTE CENPA 20 March 1974 [28 March 1973] 12427/74 Heading B8C In a cardboard carrier formed from a blank Fig. 1 (not shown), which is folded around the carrier contents and has two end panels 6 and 7 joined face-to-face by glue, handles 8 and 9 are cut-out in panels 4 and 5 adjacent the end panels 6, 7.
Patent GB-1391271-A (GB)
Title: Preparation of antibiotic compounds
IPC: C07D501/18
Filed: 1971-04-30
Abstract: 1391271 Preparation of 7-amino-cephalo- Sporins GLAXO LABORATORIES Ltd 24 April 1972 [30 April 1971] 12444/71 Heading C2C A process for the preparation of a 7-aminocephalosporanic acid comprises protecting both of the carboxyl groups of a 7-(4<SP>1</SP>-carboxybutanamido)cephalosporin - 4 - carboxylic acid by forming a double mixed anhydride thereof in an inert organic solvent under substantially anhydrous conditions, contacting the resultant solution with an imide halide-forming compound, commingling the resultant reaction mixture with an imino ether-forming compound, cleaving the reaction product and recovering the 7-aminocephalosporin formed. Suitable agents with which to form mixed anhydrides include acetyl, propionyl or chloroacetyl chloride, halides of benzoic acid or a nitro- or methoxy-benzoic acid. The mixed anhydrides may be formed in the temperature range -50‹ to +40‹ C., preferably -10‹ to +20‹ C. The mixed anhydride formation may be carried out in the presence of an organic tertiary base such as N,N-dimethylaniline or quinoline. The imide halide-forming compound may be phosphorus pentachloride and the imide halide-forming reaction may be carried out at -50‹ to + 50‹ C., preferably -30‹ to + 10‹ C. This reaction may be carried out in the presence of a tertiary base such as N,N-dimethylamine dr quinoline. The imino ether-forming compound may be a C 1 -C 6  alkanol such as methanol or a C 2 -C 4  alkane diol and the imino ether-forming reaction may be carried out in the temperature range -50‹ to + 20‹ C., preferably -50‹ to -10‹ C. The preparation of (6R, 7R)-3-acetoxymethyl- 7 - aminoceph - 3 - em - 4 - carboxylic acid from (6B, 7R) - 3 - acetoxymethyl - 7 - (4<SP>1</SP>- carboxybutanamido)ceph - 3 - em - 4 - carboxylic acid is described.
Patent GB-1475710-A (GB)
Title: Humidifier and automatic control system therefor
IPC: A61M16/16
Filed: 1975-03-25
Abstract: 1475710 Humidifier CHEMETRON CORP 25 March 1975 [25 March 1974] 12460/75 Heading A5T A humidifier comprises a support housing having a recess within which a liquid containing housing can be releasably held for heating by a heater located within the recess. The liquid containing housing includes a cover 72 having liquid entry ports 114, 116 a gas inlet port 80 and a gas outlet port 104 fitted with a condensate trap 102. Location of the liquid containing housing within the recess actuates circuitry within the support housing to activate the heater and sense the level of liquid within the housing. Heater cut-out is provided to prevent overheating. To use the humidifier, water is admitted to the housing 12, Fig. 2, via ports 114, 116 until the bleed hole 98, Fig. 3, in the gas inlet line and the gas outlet apertures 108 in trap 102 are approached. During this time the water passes through bleed hole 96 into the gas-liquid initial contact area 92 and forms a pocket of air beneath perforated plate 86, the perforations of which are sufficiently small to prevent water from passing through from above. The housing 12 is then releasably clamped in the recess by side toggle clamps 34, 36 that provide firm contact of the housing's metallic bottom 58 with a heating plate 44 supported upon a resilient base 46. A circuitry actuator button in the rear wall of the support housing is contacted by the rear wall of the housing 12 to activate the heating circuit and a photoelectric detection circuit that monitors the water level with the aid of a prism 120 within the housing 12. Gas to be humidified is introduced to unseat ball valve 84 and pass into area 92 for initial contact with the water before being finely divided by the perforated plate in transit to the main body of water above the plate. A vertical partition 110 extends part way across the housing 12 to prevent liquid splash-over to the trap inlets 108. When a low liquid level alarm is activated by the photoelectric detection circuitry the level is made up manually. The humidifier may have a sterile drip filler.