baber/WOPTO huggingface dataset:
Patent GB-793951-A (GB)
Title: Improvements in or relating to the cleaning of observation windows in vacuum apparatus
Inventor: HOLLAND LESLIE ARTHUR
IPC: H01J9/20
Filed: 1955-03-15
Abstract: 793,951. Window cleaners. EDWARDS & CO., (LONDON), Ltd., W. Feb. 29, 1956 [March 15, 1955], No. 7588/55. Class 138(1). A high vacuum plant observation window cleaning device comprises means 7, Fig. 1, operable externally of the window 2 via vacuum sealing means 10-15 and arranged to apply a coating of low vapour pressure oil or grease to the surface of the window, the means 7 or additional means 20, 21, Fig. 2, combined therewith, serving to wipe away matter deposited on the coating. As shown in Fig. 1, the circular window 2 is sealed in the wall 1 of the vacuum plant (not shown). The wiper 7 is carried by an arm 8 on a spindle 9, passing through the vacuum seal 10-15 and oscillatable by a knob 16, the wiper 7 being urged towards the window by a spring 17. The wiper comprises a felt pad 22, Fig. 2, and rubber strips 20, 21 secured by a bolt 23 to plates 18, 19 carried by the arm 8. The felt is impregnated with oil or grease, e.g., Silicone 703, to suit the particular operation to be carried out in the vacuum plant. The oil or grease is applied to the window 2 by the felt pad and thinned out by a rubber strip. Any metal or other deposits on the oil or grease are removed by the other rubber strip on the reverse movement of the wiper. In another embodiment the window is formed as a water jacket by an inner glass window and outer transparent plastic window, water being circulated through the jacket for cooling purposes. If the single window of Figs. 1 and 2 is made of transparent plastic the wiper spindle may be passed through a seal therein in lieu of the seal in the wall of the vacuum plant. Moreover the spindle may be motor driven and the wiper may extend over the full diameter of the window. Specification 699,921 is referred to.
Patent GB-1213432-A (GB)
Title: Pressing process for the production of metal articles
Inventor: BOLLMANN FRANZ
IPC: B21C23/14
Filed: 1969-02-12
Abstract: 1,213,432. Extruding. KABELUND METALLWERKE GUTEHOFFNUNGS - HUTTE A.G. 12 Feb., 1969 [20 March, 1968], No. 7604/69. Heading B3P. A backward extrusion process is performed by a press tool 3 in a die 2 on a metal blank whose backward flow is controlled by a die part which moves with the metal flow. The die part may be a freely mounted pin 4 when the blank is shaped into a pipe end with an external flange or a sleeve 10 when the flange is internal. The part may be driven at a speed at least equal to the rate of flow or it may be moved by the metal flow. The initial blank is disc-shaped and punched by the pin 4 or the die 9. The punched-out disc is used in a similar process for smaller pipe ends. The metal may be a copper alloy with zinc and aluminium.
Patent GB-1475702-A (GB)
Title: Supply strand interrupting apparatus for textile yarn forming machines
IPC: G03F1/20
Filed: 1976-02-26
Abstract: 1475702 Supply strand interrupting apparatus PARKS-CRAMER CO 26 Feb 1976 [27 Feb 1975] 07715/76 Heading DID Apparatus for interrupting a supply strand S fed to a drafting system 10a comprises a ring 20a through which the strand passes and a plug 21a which can be moved into a position penetrating the ring to trap the strand. The ring has a slit to allow threading up. The plug is loosely mounted on a swinging arm 26a to allow it to centre itself on the ring, the arm having a counterbalance part which also acts as a flag to indicate where a strand has been interrupted. The engaging surface of the plug is roughened or knurled to improve its grip. The apparatus is operated by a travelling tender 17 which senses an ends down by a detector 18 and activates a jet 19 to blow the swinging arm into the strand interrupting position.
Patent GB-353381-A (GB)
Title: Manufacture of acetic and other organic acid anhydrides
Filed: 1931-03-13
Abstract: Acetic and like anhydrides are produced by treating a suspension of an anhydrous acetate such as calcium or sodium acetate in liquid sulphur dioxide with an acyl chloride such as sulphonyl chloride or its components.  Other diluents such as acetic anhydride or hydrocarbons may be added.  The reaction mixture is cooled to 0 DEG -20 DEG  C.  The inorganic salts produced are filtered off, or the reaction mixture may be distilled, the inorganic matter remaining as a residue.  Instead of using sulphuryl chloride, chlorine in liquid or gaseous state may be employed, in which case a sufficient excess of liquid sulphur dioxide must be present to take part in the reaction and to maintain the mass in liquid state.  The liquid product may be fractionated to obtain the anhydride, or may be used direct for cellulose acetylation.  Carbonyl or acetyl chloride may be used instead of sulphuryl chloride, and other anhydrides such as those of propionic, butyric and benzoic acids may be made by the same method.
Patent GB-1511072-A (GB)
Title: Asymmetric substituted 1,3-diphenyl-2-trichloromethyl imidazolidines and their uses in pesticidal compositions
IPC: C07D233/02
Filed: 1976-02-27
Abstract: Compounds of the formula II are prepared <IMAGE> in which R1, R2, R3 and R4, which are identical or different, denote hydrogen, halogen, lower alkyl or lower alkoxy or the nitro group, the substituents R1 to R4 being in the 3-, 4- or 5-position and the phenyl radicals A and B being substituted by different substituents, by reacting corresponding N,N'-diphenyl-substituted ethylenediamines with chloral. The compounds of the formula II, which are distinguished by an outstanding insecticidal and acaricidal activity, in particular a highly selective insecticidal and acaricidal activity, are used for controlling insects and acarids.
Patent GB-557018-A (GB)
Title: Means for obtaining heat and rectified current for battery charging from alternatingcurrent mains
IPC: H02J7/02
Filed: 1942-06-10
Abstract: 557,018. Electric heating and battery charging devices ; rectifying arrangements. FELL, H., and FLETCHER, G. June 10, 1942, No. 7896. [Classes 38 (ii) and 38 (iv)] [Also in Group XI] Apparatus primarily intended for charging a motor vehicle battery and as a garage heater comprises a plate type rectifier 1, 24 connected to supply terminals by resistances 8 and a resistance 15 connected in series with the contacts 12a of a circuit breaker and in shunt with the input terminals of the rectifier to protect it against excessive voltage. When a battery or other load is connected to the rectifier leads 10, 13 a solenoid 12 opens the shunt circuit. The elements are preferably mounted on an insulating support 22 in a metal casing comprising a hollow base 17, cap 19 and perforated wall 18 secured together by rods and nuts 20. The apparatus may include a switch or (and) a plug and socket connection on the input side.
Patent GB-416098-A (GB)
Title: Improvements in spirit varnishes and the like
IPC: C09F11/00
Filed: 1933-03-16
Abstract: Spirit varnishes particularly suitable for spraying on to wood surfaces are formed by dissolving shellac, to which small proportions of other resins, such as acaroid, may be added, in a mixture of ethyl alcohol or methylated spirit and a non-aromatic hydrocarbon having a higher rate of evaporation such as petroleum distillate boiling between 45 and 100 DEG  C.
Patent GB-199446-A (GB)
Title: Improvements in wet gas-meters
IPC: G01F3/30
Filed: 1922-03-20
Abstract: 199,446. Fox, T., and Robinson, S. March 20, 1922. Gas meters.-Relates to a gas-meter comprising a single chamber or casing adapted to contain the auxiliary parts which are removably secured thereto. The casing 1 is formed of a cylindrical sheet of metal closed at the back and front by dished plates 2, 3 upon which are mounted the inlet and outlet pipes 4, 47 respectively, while the drum 5 is supported between an upright diametral member 6 secured to lugs 8 formed on the inner periphery of the casing and a pipe 13. screwed into the plate 3, which connects the outlet side of the drum with the gas and water outlet pipes 47, 30. The pipe 30 leads to a waste water box 25, secured at the front of the meter by means of a hollow screwed plug 26, which is provided with the usual spoon 32, pivoted on a spindle 33 bearing on two lugs 31 on either side of the box 25, operated by a crank 37 fixed to the drum spindle 11 and having a roller 36 engaging a slotted arm 34 mounted on the spindle 33. The drum is supported on the spindle 11 by means of a central tube 16 fixed to the drum, while the spindle 11 is provided with a worm 41 engaging a worm wheel 39 on a spindle 40 which operates the indicating mechanism 38, the spindle 40 being supported in a lug 50 fixed to the member 6. Water is admitted to the meter through a pipe 45.
Patent GB-751352-A (GB)
Title: Improvements in methods of and apparatus for condensing vapour into solid form
Inventor: RILEY HARRY LISTER
IPC: B01D7/02
Filed: 1953-03-24
Abstract: 751,352. Surface condensers. UNITED COKE & CHEMICALS CO., Ltd. June 24, 1954 [March 24, 1953 ; March 24, 1953], Nos. 8105/53 and 8106/53. Class 64(3). Apparatus for condensing a vapour such as phthalic anhydride directly into solid form, in which the vapour is passed over rows of cooling tubes 10 extending transversely to the direction of vapour flow, comprises a casing 3 having a vapour inlet 6 at one end and an outlet 8 at the other end for uncondensed gas, the tubes in each row being separated from each other by narrow spaces 40 and being so disposed that in each row at least one gap 32 larger than the narrow spaces 40 is left through which vapour can pass when the narrow spaces are blocked by condensed solid, the gaps 32 being staggered in adjacent rows to force vapour flowing through a gap in one row to flow transversely between the rows before reaching the gap in the next row. The individual tubes 10 are preferably of stainless steel and may extend either horizontally or vertically or at any other suitable angle and may be provided with secondary heating surfaces in the form of wire gauze or netting or longitudinal transverse or helical fins, and the gaps 32 in the tube rows may be formed by omitting one or more tubes or by omitting the secondary heating surface from one or more of the tubes in a row. The gaps 32 may become progressively smaller towards the outlet end of the condenser as shown, no gaps being provided in the tube rows E adjacent the outlet. Arrangements are described in which the complete tube assembly or alternatively individual tube rows may be removed from the casing when necessary. The condensed solid is removed periodically by passing a heating fluid through the tubes and, in a method described for condensing phthalic anhydride, a number of condensers connected in parallel are employed so that in at least one of them the condensed solid is being recovered while the remainder are condensing the vapour into solid form. The same fluid e.g. oil may be used for the heating and condensing operations by circulating it alternately through heating and cooling systems. A heating coil may be provided at the casing outlet through which uncondensed vapour is removed and a further coil may be provided at the bottom of the casing where the melted solid collects during the melting operation. According to Provisional Specification 8105/53 the spaces between the individual tubes in the tube rows E, remote from the vapour inlet, may be smaller than those between adjacent tubes in the rows nearer the vapour inlet.
Patent GB-190956-A (GB)
Title: Improvements in apparatus for depositing and conveying light substances carried in suspension in effluent and other gases
IPC: B01D45/08
Filed: 1921-06-22
Abstract: 190,956. Barton, G. V., and Lead Products Syndicate, Ltd. June 22, 1921. Impurities, separating from gases.-Apparatus for depositing and conveying finely-divided substances carried in suspension in gases comprises one or more enclosed conveyers, the propelling action of which is in the opposite direction to the flow of the gases, and may be used for the removal of traces of lead oxide from the gases escaping from the depositing chamber of a lead-oxide plant. Four superposed closed-in conveyers R<1>, R<2>, R<3>, R<4> provided with helical blades or the like (not shown) are supported by stools r<10>, r<11> on the roof of the depositing chamber C. The effluent gases from the outlets c' of the depositing chamber flow successively through the ducts r', r<2>, r<3>, r<4>, in the direction indicated bv the dotted line arrows, and finally escape through a water-seal connected to the duct r<5>. The conveyer-blades are rotated by chain-wheels r<9> so that their propelling action is in the reverse direction to the flow of the gases. The deposited oxide is thus conveyed successively through the ducts r<4>, r<3>, r<2>, r<1>, in the direction indicated by the full-line arrows, back into the depositing chamber C. Specification 190,733, [Class 1 (iii), Oxides &c., Metallic], is referred to.
Patent GB-544394-A (GB)
Title: Improvements in or relating to the treatment of ores
IPC: C22B5/00
Filed: 1941-06-30
Abstract: 544,394. Extracting metals. WATSON, F. (American Ore Reduction Corporation). June 30, 1941, No. 8197. [Class 82 (i)] [Also in Group III] Ores, such as antimony sulphide ores, containing a constituent capable of being converted into an oxide fume, are roasted to form such a fume which is then passed, before substantial condensation thereof, through a reducing zone to form the metal. In the plant shown, preheated ore from a hopper 10 and pre-heated air from a chamber 13 are passed through a heated roasting chamber 15, non-volatile matter being separated in a chamber 20 and the oxide fume being passed through a pipe 23 where it is mixed with heated air from a pipe 26 and powdered coal from a hopper 25. The mixture is reduced in a chamber 24, metal being collected in a chamber 30 and the remaining stream passing between baffles 31 where any entrained metal may be collected and returned to the chamber 30. The residual gases are withdrawn through a pipe 33, are burnt in a furnance 16 which surrounds the roasting chamber 15, and effect also the heating of the chambers 13, 20. In treating antimony sulphide ores the roasting temperature may be controlled to produce antimony trioxide and not tetroxide. If arsenic is present along with antimony, both the oxides formed may be reduced to metal, and the arsenic either condensed separately or burnt with the other gases in the furnace 16.
Patent GB-483945-A (GB)
Title: Process for the preparation of new compounds of therapeutic value
IPC: C07C311/37
Filed: 1937-03-19
Abstract: Aralkylaminobenzene-p-sulphonamides of therapeutic value are prepared by reacting N-acetyl-N-aralkyl-anilines with chlorsulphonic acid and treating the products with ammonia. According to the examples, (1) acetylbenzylaniline is treated with chlorsulphonic acid and the resulting sulphonyl chloride run into ammonia solution from which the benzylaminobenzene-p-sulphonamide precipitates; (2) phenylpropylaniline, prepared by reacting aniline with a -chloro-7-phenylpropane, is acetylated and the product treated first with chlorsulphonic acid and then with ammonia to give phenylpropylaminobenzene-p-sulphonamide.
Patent GB-711310-A (GB)
Title: Foaming bed for the foaming of fiery molten masses, for example blast furnace slag
IPC: C21B3/06
Filed: 1952-04-01
Abstract: 711,310. Foaming slag HUTTENWERK RHEINHAUSEN AKT.-GES. April 1, 1952 [April 18, 1951; Nov. 10, 1951], No. 8268/52. Class 22 A grate forms the bottom of a foaming bed of the type wherein foaming agent rises through nozzles 6 in the base of the bed. The grate is formed from individual bars 11 the spaces between, and also a pan beneath, having a porous filling. Certain bars 13 are in a higher plane and serve as a sliding surface for a scraper with which the bed is emptied. Bores 15 are provided, at least in the bars 13 through which a coolant is passed, and the bars 13 are elastically connected together to allow for thermal expansion. In a modification, Fig. 4 (not shown), the bars 11 are combined to form box-like gratings which can be bolted together to form a foaming bed.
Patent GB-1096072-A (GB)
Title: Improvements in or relating to incinerators
Inventor: CLARE GEORGE WILLIAM
IPC: F23G5/16
Filed: 1964-02-27
Abstract: 1,096,072. Incinerators. UNITED KING- DOM ATOMIC ENERGY AUTHORITY. Feb. 9, 1965 [Feb. 27, 1964], No. 8302/64. Heading F4B. An incinerator for disposing of contaminated or radio-active waste comprises a refractory lined combustion chamber 1 with a burner 9 and rocking fire-bars 7. Ais is supplied via a flue 10 and the material to be burned is supplied through an air lock and shoot assembly 21, 22, 23 and 20. The whole unit is encased by a substantially air-tight metal container 5 to avoid the escape of contaminated ash and flue gases. A fan 18 ensures a negative pressure therein for this purpose. Ash collects in ash pits 25 the ash being periodically removed, in containers sealed therein, through air locks. The flue gases pass from chamber 1 through a heated chamber 2 by a tortuous path through bricks 13 on which ash is deposited, and are cooled in heat exchanger 15, and passed through cyclone 16 and electrostatic separator 17 before release to the atmosphere.
Patent GB-589780-A (GB)
Title: An improved die for forming rectangular hollow articles from sheet material
IPC: B21D5/01
Filed: 1945-04-04
Abstract: 589,780. Angular bending. DARLING, G. F. April 4, 1945, No. 8323. [Class 83 (iv)] In a punch and die arrangement for forming from sheet material such as metal all four sides of four-sided hollow articles without removing the material from the die, the punch head 1 co-operating with the fixed die base 15 has a block 10 detachably mounted in brackets 4, 5 on the head. One end of the block 10 has a handle 12 located in an open-ended slot 6 in the bracket 4 by a removable pin 13 and the other end has a pin 9 engaging in a plate 8 which can swivel in a slot in the bracket 5. A gap 14 is provided between the head and block to accommodate the material during the last forming stage. The first three sides of the article are formed by forcing the material 17 into a recess 16 in the die base by lowering the head 1 and block 10, the gap between them being taken up during this process. The head and block are then raised together with the article, the pin 13 is withdrawn, and the block lowered about the bracket 5 until it can be rotated through 90 degrees into the position shown in Fig. 8. The punch head is again lowered and the fourth side of the article is formed in the die. The block 10 can be detached completely from the head so that the formed article may be removed from the block.
Patent GB-307845-A (GB)
Title: Improvements in and relating to methods of manufacturing dynamo-electric machines
IPC: H02K1/18
Filed: 1929-03-14
Abstract: 307,845. British Thomson-Houston Co., Ltd., (Assignees of Reist. H. G.). March 14, 1928, [Convention date]. Cores and carcass structures.-The laminations 11 of the stator of a dynamo-electric machine are secured in a frame 10 by means of dovetailed ribs 12 attached to the frame 10 by gussets 18 which are first secured by tack welding and afterwards completely welded. A certain number of laminations 14 and 15 are first placed in position, being adjusted by means of plates 16 engaging the teeth and centred by means of a pin gauge and a temporary axle 13. The ribs 12 being thus adjusted, they are secured by tack welding to the gussets 18; to prevent displacement by heating the ribs during the welding each tack weld may be water-cooled as soon as made. The welding is then completed and the whole of the laminations inserted.
Patent GB-710307-A (GB)
Title: Improvements relating to mills of the rotary cylinder type
Inventor: JONES SAMUEL
IPC: B02C17/24
Filed: 1952-04-02
Abstract: 710,307. Ball mills; mixing appliances. EDWARDS & JONES, Ltd. March 12, 1953 [April 2, 1952], No. 8338/52. Classes 59 and 86 [Also in Group XXIV] The driving shaft 11 is connected to the rotary drum 15 of a ball mill or mixing appliance through the intermediary of a boss 10 having a flange 10a provided with holes in which resilient bushes 25 are inserted, the studs 26 securing the flange to the drum passing through these bushes.
Patent GB-540917-A (GB)
Title: Improvements in and relating to sponge rubber
IPC: B29C67/24
Filed: 1940-05-09
Abstract: 540,917. Sponge rubber. BRITISH RUBBER PRODUCERS RESEARCH ASSOCIATION, and STOKES, S. C. May 9, 1940, No. 8356. [Class 70] Sponge-like or compressible material is made by intimately mixing rubber with vulcanizing ingredients, softeners and shredded comminuted, granular or powdered sisal, and heating to obtain expansion and vulcanization. A preservative such as anthracene oil or creosote which also acts as a blowing agent, and ammonium carbonate which facilitates expansion may also be added. An example contains rubber, sulphur, zinc oxide, stearic acid, zinc diethyldithiocarbamate, ground sisal, creosote oil and mineral oil.
Patent GB-1035252-A (GB)
Title: Method and apparatus for breaking foam
IPC: B01D19/02
Filed: 1963-03-04
Abstract: 1,035,252. Foam breaking. MIXING EQUIPMENT CO. Inc. March 4,1963 [March 9, 1962], No. 8542/63. Heading B1M. The foam volume of a foaming liquid is reduced by contacting the foam in an unconfined zone with surfaces moving at at least 8Q ft./sec. normally to said foam and introducing the product into a quiescent zone for separation. The quiescent zone may be a vessel external to the foam-producing zone and connected thereto for return of the product. As shown in Fig. 1, foam rises e.g. from a kettle or other container into an inlet defined by wall 2 and is drawn into an annular zone defined by walls 1 and 2 by a rotor 3 comprising a series of blades arranged at the periphery of a circle. After being struck by the blades the foam forms a product which discharges finally through outlet 4. The Specification refers to the breaking of foams of various densities to form two phase mixtures of foam and liquid, by means of specified blade speeds, A polyvinyl alcohol/water foam is mentioned.
Patent GB-300164-A (GB)
Title: Process for the purification of metals
IPC: F27B14/00
Filed: 1928-03-21
Abstract: 300,164. British Maxium, Ltd. Nov. 7, 1927, [Convention date]. Molten metals, removing impurities from by mechanical treatment. - Light metals such as magnesium and aluminium are filtered through metal gauze coated with an alloy or amalgam having a melting-point below 190 C.
Patent GB-635050-A (GB)
Title: Improvements in and relating to holders for thermionic valves, electric plugs and like electrical devices
IPC: H01R33/76
Filed: 1948-03-24
Abstract: 635,050. Holders for discharge tubes. CARR FASTENER CO.; Ltd., and CLARK, G. W. March 24, 1948, No. 8667. [Class 38 (i)] In a holder for valves, plugs and the like, and comprising superposed insulating plates 1, 2 and sockets 3, the plates in addition to being secured together by a rivet 4, are spaced apart axially by an annular sleeve 7 having either castellations 8 or apertures to permit the free circulation of air round the holder. Instead of a sleeve, spaced lugs may be provided on either of the plates.
Patent GB-1551539-A (GB)
Title: Device for removing waste extrudet material from a component of an extrusion press
IPC: B21C35/04
Filed: 1977-03-02
Abstract: For the remainder-free removal of the extrusion shell (5) from the dummy block (3) when extruding metals which are difficult to extrude, the invention proposes a device with a separating head (6) which is designed as a bridge (9) and into which there project two mutually opposite shearing blocks (17, 18). One (17) of the shearing blocks (17, 18) is extended counter to the push-in direction (F) of the dummy block (3) and is provided with a widened entry proportion (26) while the other shearing block (18) has a separating edge (19). Such a construction makes it possible to impart to the dummy block (3) provided with the extrusion shell (5) during the push-in movement a rotary motion by means of the shearing blocks (17, 18) but to prevent the extrusion shell from rotating. It is thereby possible to break the adhesion between the extrusion shell and the dummy block and to achieve remainder-free removal of the extrusion shell in one piece. <IMAGE>