baber/WOPTO huggingface dataset:
Patent GB-972077-A (GB)
Title: Air conditioning system
IPC: F24F11/06
Filed: 1961-02-09
Abstract: 972,077. Air conditioning. CARRIER CORPORATION. Feb. 9, 1961 [May 5, 1960], No. 4926/61. Heading F4V. [Also in Division G3] An induction unit for an air conditioning system is supplied with primary conditioned air which is discharged through nozzles to induce secondary room air over a heat exchanger and/or through a by-pass channel which is damper controlled in accordance with the secondary air temperature. Primary air is supplied to a plenum chamber 26 whence it flows through a damper controlled aperture 29 to discharge nozzles 28, separate secondary streams of air being induced to flow through an inlet 37 at the base of the unit and through a further inlet 71 to a control 68 at the side: of the unit. A heat exchanger 32 is mounted in the lower part of the unit and is by-passed by a passage 33 formed by a wall 34 the upper part 40 of which is hinged at 41 to form a damper which is biased towards a position closing the passage by a counter-weight 43. The plenum chamber 26 communicates via a line 51, filter 52, pressure equalizer 54 and an orifice 57 with lines 59 and 60 which lead to a bellows 39 attached to the damper plate-40 and a changeover valve 61 respectively. The valve 61 is controlled by. a thermostat 62 to connect line 60 to either line 66 or line 67 depending on whether heating or cooling medium is being circulated through the heat exchanger 32 and bimetallic elements 74 and 73 are mounted at the ends of the respective lines. When the line in use is covered by the appropriate element the pressure in the bellows 39 rises and the damper plate 40 is moved to open the by-pass passage 33; conversely air is bled from the pipe when the element 1 uncovers its end in accordance with the temperature of the secondary air induced through the inlet 71 and the bellows pressure drops to close passage 33. In the complete air conditioning system units of the above type are positioned in various rooms of a building and are supplied with primary air from a central conditioning unit comprising a filter, pre-cooling coil, humidifier, a heating coil and a cooling coil. Specification 641,712 is referred to.
Patent GB-119877-A (GB)
Title: Improvements in and relating to Machines for Grinding Rollers of Roller Bearings and like Articles.
Inventor: BOCK WILLIAM EMIL
IPC: B24B5/24
Filed: 1917-04-05
Abstract: 119,877. Bock, W. E. April 5, 1917. Drawings to Specification. Feeding rollers.-In a grinding-machine rollers are delivered one at a time from a magazine tube by means comprising a pair of spring-pressed plungers pushed outwards alternately by cams and each provided with a finger passing through the wall of the magazine. One finger is adapted to engage under the lowermost roller, and the other to press upon the side of the roller above it. Provision is made for varying the distance between the fingers to correspond with the length of the rollers under treatment.
Patent GB-230254-A (GB)
Title: Improvements in or relating to die screwing heads having tangential dies
IPC: B23G5/12
Filed: 1924-02-27
Abstract: 230,254. Hall, R. P., and Heap & Co., Ltd., J. Feb. 27, 1924. Screwing die-heads. - In a screwing die-head of the kind wherein pivoted tangential diecarriers are adjusted by rotary movements of a cam ring, the die-carriers 4 are pivoted at 6 and have members 8 of hardened steel or with a. hardened edge pivoted thereto in slots 7 so that a large and constant area. of contact is maintained with the cam surfaces 11. The cam ring 12 is bolted to a ring 14 adjustable with respect to a third ring which has slots 13 to accommodate locking bolts 21, graduations on the rings showing the setting. The third ring is slidably keyed to the die-head at 15 and may be withdrawn axially by a yoke and annular groove to cause the cams to slide along inclined surfaces on the members 8 and release the dies quickly. Springs 20 tend normally to open the dies.
Patent GB-389969-A (GB)
Title: Sensitising silver halide emulsions
IPC: B65D33/30
Filed: 1932-02-19
Abstract: Silver halide emulsions are sensitized for green and yellowish-green by using, instead of an isocyanine containing a naphthothiazole nucleus as in the parent Specification, an isocyanine containing a naphthoselenazole nucleus.  The dyes are used in the form of alkyl halides or alkyl-sulphoalkylates.  In an example of the preparation of the dyes, 1-amino-2-nitronaphthalene is diazotized and treated with potassium selenocyanide.  The product is reduced with sodium hydrosulphite to 2-amino-1-selenonaphthol which yields 2 : 2<1>-diamino-1 : 1<1>-dinaphthyl-diselenide.  This is treated with zinc and acetic anhydride giving 2-methyla -naphthoselenazole which is then treated with dimethyl sulphate and the product boiled with toluquinoline-ethyl-bromide and sodium ethylate in alcohol.  On addition of potassium bromide, the dye 1 : 6<1>-dimethyl-1<1>-ethylnaphthoseleno-iso-cyanine bromide is precipitated.
Patent GB-1103304-A (GB)
Title: Improvements in or relating to circuit arrangements for deriving predetermined waveform currents or voltages
IPC: H03K4/72
Filed: 1965-02-05
Abstract: 1,103,304. Transistor sawtooth circuits. TELEFUNKEN PATENTVERWERTUNGS, G.m.b.H. 5 Feb., 1965 [5 Feb., 1964], No. 5038/65. Heading H3T. In a field deflection circuit for a television receiver the effect of the curvature of the # v. Ib characteristic is corrected by connecting a capacitor 6 between the base and emitter of an emitter follower 4 and a further R.C. circuit 7, 8 between the base and a point of constant potential. As described, a blocking oscillator 3 is synchronized by field pulses at 22 and provides a pre-distorted sawtooth wave 29 which is passed by an emitter follower 4 and output transistor 12 to field deflection coils 13, 14. Capacitor 6 compensates for the base characteristic of transistor 4, further correction being provided by feedback via 26, 7. Resistors 17, 25, 8 respectively adjust frequency, amplitude and linearity. A negative temperature coefficient resistor 27, mounted adjacent transistor 12, stabilizes the working point of transistor 4. The charging voltage for capacitors 10 and 11 may be provided with a time varying component so as to improve linearity. Alternatively, the deflection coils 13, 14 may replace resistor 5.
Patent GB-685144-A (GB)
Title: Improved drawing or extruding die
Inventor: ANDREWS LEONARD WILFRED
IPC: B21C3/06
Filed: 1950-02-28
Abstract: 685,144. Drawing and extruding dies. MUREX, Ltd. Feb. 21, 1951 [Feb. 28, 1950], No. 5104/50. Class 83 (iv). An adjustable aperture drawing or extruding die for polygonal sections comprises a set of dieblocks in slidable engagement with each other in a holder, and surrounded by backing blocks which may be changed to suit different sizes of die-aperture. Sectional dies D7, Fig. 3, have mutually engaging convex and concave faces 10, 11, Fig. 1, the exposed part of the convex faces 10 forming the die aperture 31. The biplanar outer faces 12, 13 of each die section are engaged by parallel faces 35, 36 of changeable backing blocks B7 assembled in a die-holder 20 and clamped by a screw 28. The assembly is held within the holder 20 by a cover-plate. The holder 20 may have a plate inserted in its base which may be changed with the blocks B7 to suit different sizes of aperture. Each die-block may be formed of or faced with hard metal, and the Provisional Specification states that the cover-plate may have channels for circulation of cooling fluid within the plate.
Patent GB-489738-A (GB)
Title: Process for the dyeing and printing of cellulose ester fibres
IPC: C09B39/00
Filed: 1937-02-20
Abstract: Cellulose esters, dyeing; azo dyes.-Cellulose ester fibres are dyed or printed with azo dyes of the general formula R-CH2-CH(O.SO3H)-CH2.Cl (wherein the radicle R, free from carboxylic or sulphonic groups, includes an azo group) or salts thereof.  The dyestuffs are obtainable by (a) coupling a diazotized amine free from carboxylic or sulphonic groups with an N-b -sulphato-g -chloropropyl derivative of an aromatic amine, (b) sulphating, e.g. with conc. sulphuric acid, a dyestuff obtainable by coupling one of the said diazotized amines with an N-b -hydroxy-g -chloropropyl derivative of an aromatic amine, (c) sulphating the product obtainable by treating an azo dyestuff containing a primary or secondary amino group with epichlorhydrin under such conditions that condensation results with opening of the epoxy ring.  In examples, (1) an acetyl cellulose artificial silk yarn is dyed a brilliant scarlet by treatment for 3/4 hour in an aqueous bath at 60 DEG  C. p  containing sodium chloride and the dyestuff 4-nitraniline --> the product obtainable by sulphating with chlorosulphonic acid the condensation product from epichlorhydrin (1 mol.) and ethylaniline (1 mol.); alternatively, the dyestuff may be thickened with gum arabic and applied to an acetylcellulose fabric by padding or printing; (2) claret and orange brown dyeings are similarly obtained with the dyestuffs, 2-chloro-4-nitraniline and 2 : 6-di-chloro-4-nitraniline--->N-ethyl-N-g -chloro-b -sul phatopropylaniline respectively; (3) a blue violet dyeing is similarly obtained with the dyestuff, 6 - bromo - 2 : 4 - dinitraniline --> 3 - N - n - butyl - N - g  - chloro - b  - sulphatopropylamino - 4 - methoxytoluene; (4) a violet dyeing is similarly obtained with the product obtainable by sulphating the dyestuff, 6-bromo - 2 : 4 - dinitraniline--->N - g  - chloro - b -hydroxypropylaniline, with sulphuric acid monohydrate; (5) a reddish scarlet dyeing is similarly obtained with the dyestuff, 4-nitraniline ---> the product obtainable by sulphating with chlorosulphonic acid the product obtained by treating with hydrochloric acid, to remove the acetyl group, the condensation product from epichlorhydrin (1 mol.) and 3-acetoxydiphenylamine (1 mol.)  Specifications 181,750 and 237,739, [both in Class 2 (iii)], are referred to.
Patent GB-842536-A (GB)
Title: Improvements in or relating to radar systems
IPC: H01Q3/08
Filed: 1959-02-13
Abstract: 842,536. Directional radio systems. COMPAGNIE GENERALE DE TELEGRAPHIE SANS FIL. Feb. 13, 1959 [Feb. 14, 1958] No. 5177/59. Class 40(7). Relates to a radar system in which a single radio pencil beam is oscillated in elevation in a sawtooth manner with a slow downward sweep HI and a rapid upwards flyback sweep GH and is simultaneously oscillated or rotated in azimuth at a slower rate, the downward sweep of the elevation scan component being utilized for determining the elevation or height of the target. In such a system the downward elevation sweep HI is inclined to the vertical and, due to the finite cross section of the beam, Fig. 2 (not shown), the apparent elevation of a target will change as the beam scans through the target in azimuth. According to the present invention this effect is prevented by tilting the aerial system ABCD about a horizontal axis in the vertical elevation scan plane into a position A<SP>1</SP>, B<SP>1</SP>, C<SP>1</SP>, D<SP>1</SP>, such that the resultant downward elevation scan H<SP>1</SP>, I<SP>1</SP> is vertical; alternatively if the beam is produced by a primary source backed by a reflector, the required effect can be achieved by tilting the primary source only.
Patent GB-586845-A (GB)
Title: Improvements in or relating to bonding of optical elements and the complex optical elements produced
IPC: G02B1/00
Filed: 1944-03-20
Abstract: 586,845. Compound transparent sheets. INTERNATIONAL POLAROID CORPORATION. March 20, 1944, No. 5202. Convention date, Feb. 19, 1943. Drawings to Specification. [Class 140] [Also in Group XX] The portions of complex optical elements made of transparent organic plastic material, such as compound prisms and achromatic lenses and prisms, are secured together by applying to the adjacent faces an adhesive comprising a relatively high-melting polyvinyl compound and then drying the adhesive while maintaining the elements pressed together. One of the adjacent faces may have a semi-transparent metallic reflecting coating. The adhesive may comprise polyvinyl acetals, polyvinyl acetate or a polyvinyl acetal-acetate mixture. The two portions of the elements may be of different materials, e.g., one may be of polycyclohexyl methacrylate and the other of polystyrene.
Patent GB-491073-A (GB)
Title: Improvements in electric incandescent lamps
IPC: H01J5/32
Filed: 1937-02-22
Abstract: 491,073. Electric incandescent lamps. GENERAL ELECTRIC CO., Ltd. (Patent- Treuhand-Ges. f³r Elektrische Gl³hlampen) Feb. 22, 1937, No. 5226. [Class 39 (ii)] In an electric incandescent lamp of the type wherein a substantial part of the filling consists of krypton or xenon or a mixture thereof, and the part of the bulb surrounding the filament is sc shaped that its volume is as small as possible for a normal commercial life, the bulb has no foot-tube but is closed by a ceramic mem. ber through which pass the leading-in wires. The Figure shows a bulb 1 closed by a ceramic plate 3 provided with a central aperture through which pass a pumping tube 4 and leading-in wires 5, 6, the junction between these members being sealed with enamel 18. Enamel may also be used to seal the ceramic plate 3 to the neck 2 of the bulb. A metal reflecting plate may be supported above the plate 3 by wires fixed in the enamel 18 which seals the central hole. Alternatively the inner surface of the plate may be coated in known manner with an enamel reflecting-surface which may also serve to seal the members together. A metal cap 11 may be sealed to the bulb neck 2 and may enclose a fuse wire 15 in each leading-in wire, surrounded by a glass tube 16. The ceramic plate 3 may be a white non-porous plate made by sintering together a mixture of 50 per cent magnesium oxide and 50 per cent titanium oxide, or of 70 per cent magnesium oxide, 29 per cent beryllium oxide, and 1 per cent titanium oxide. In a modification the ceramic plate comprises the flat bottom of a cylindrical ceramic member to the open outer end of which a metal cap is cemented. Alternatively the cap itself may be of a ceramic material of a composition different from that of the cylindrical member, the end of the cap being formed with screw threads provided with a metal coating to which one leading-in wire is connected, the other leading-in wire being connected to a sprayed-on bottom contact. Two or more filaments may be included in the same lamp, with arrangements of known kind for bringing one into operation when another fails. Specifications 418,867 and 471,268 are referred to.
Patent GB-540372-A (GB)
Title: A resilient pivotal joint
IPC: B62D7/16
Filed: 1940-03-20
Abstract: 540,372. Resilient pivotal joints. JACKSON, L. MELLERISH-. (Monroe Auto Equipment Co.), March 20, 1940, No. 5236. [Class 65 (ii)] A resilient connection between a link 11 and another member 12, 14 comprises a housing 15 at the end of the link provided with an opening, 16 through which extends a headed stud 13 on the member 12 encased in a resilient bush 18, which may be inserted in two parts 19, 20. The stud is inserted with its long dimension in the plane of the long dimension of the opening 16, and is then turned through 90 degrees so that: its long dimension is in the plane of the narrow dimension of the opening to prevent withdrawal. A ,pin 25 in the stud projects into the bushing to further prevent accidental withdrawal.
Patent GB-101254-A (GB)
Title: Improvements in High Speed Oil Engines.
Inventor: DEMPSEY PETER
IPC: F02M69/00
Filed: 1916-04-11
Abstract: 101,254. Dempsey, P. April 11, 1916. Regulating. - In a four-stroke-cycle engine which induces during the early portion of the suction stroke a rich non- combustible mixture to which air is subsequently admitted through ports uncovered by the piston, regulating is effected by throttling the air supply through the piston-controlled ports. The passage leading to each port contains a non-return valve and a hand-controlled throttle valve carrying an actuating-arm p. The rich mixture supplied to the cylinders is prepared in a carburettor d and heated subsequently in a chamber f through which passes the exhaust pipe a<1>. A cock c<2> controls the normal fuel supply or the admission of a light fuel at starting.
Patent GB-717971-A (GB)
Title: Improvements in and relating to lignin-containing elastic materials
IPC: C08L27/06
Filed: 1952-02-29
Abstract: A composition comprises a non-alkalinized, preferably lime-free, substance containing lignin sulphonic acid or a salt of said acid in a liquid dispersant in quantity sufficient to produce a mixture having a liquid content of 10 to 30 per cent. in which the lignin sulphonic acid or the salt is molecularly or colloidally dispersed and a natural or synthetic rubber or polyvinyl chloride or a mixture thereof, the blending of the components preferably being carried out at an elevated temperature.  The lignin sulphonic acid product may be obtained from fermented or unfermented waste sulphate cellulose liquor and may be added in the form of the sodium, potassium, ammonium or calcium salt.  The acid or salt may be added in water, methanol, glycerol, ethylene glycol, diethylene glycol, propylene glycol, butylene glycol, or formamide; and phosphoric acid, sulphuric acid, aluminium sulphate, formic acid, acetic acid, glycollic acid may also be added.  The synthetic rubber may be butadiene-styrene, butadiene-acrylonitrile, isobutylene-butadiene or neoprene.  Fillers such as alumina, lamp black, chalk, calcium silicate, zinc oxide or graphite; and aniline dyes, natural resins, urea, melamine, formaldehyde, furfural, amino-triazine, dicyandiamide and acetaldehyde may be added as well as rubber compounding substances such as stearic acid, sulphur, mercaptobenzthiazole, phenylcyclohexyl p-phenylenediamine, or waste textile powder.ALSO:A composition comprises a non-alkalinized, preferably lime-free, substance containing lignin sulphonic acid or a salt of said acid in a liquid dispersant in quantity sufficient to produce a mixture having a liquid content of 10 to 30 per cent. in which the lignin sulphonic acid or the salt is molecularly or colloidally dispersed and a natural or synthetic rubber or polyvinyl chloride or a mixture thereof, the blending of the components preferably being carried out at an elevated temperature.  The lignin sulphonic acid product may be obtained from fermented or unfermented waste sulphate cellulose liquor and may be added in the form of the sodium, potassium, ammonium or calcium salt.  The acid or salt may be added in water, methanol, glycerol, ethylene glycol, diethylene glycol, propylene glycol, butylene glycol, or formamide; and phosphoric acid, sulphuric acid, aluminium sulphate, formic acid, acetic acid, glycollic acid may also be added.  The synthetic rubber may be butadiene-styrene, butadiene-acrylonitrile, isobutylene-butadiene or neoprene. Fillers such as alumina, lamp black, chalk, calcium silicate, zinc oxide or graphite; and aniline dyes, natural resins, urea, melamine, formaldehyde, furfural, amino triazine, dicyandiamide and acetoldehyde may be added as well as rubber compounding substances such as stearic acid, sulphur, mercaptobenzthiazole, phenylcyclohexyl p-phenylenediamine, or waste textile powder.
Patent GB-289768-A (GB)
Title: Separation of tar from gases
IPC: C10K1/02
Filed: 1928-02-20
Abstract: 289,768. Koppers Co., (Assignees of Becker, J.). April 30, 1927, [Convention date]. Pitch and tar.-A tar separator comprises a number of foraminous baffles in the path of the gas and means for subsequently causing the gas to whirl so as to deposit globular tar and for reheating the gas. A shell 1 having a gas inlet 5 and outlet 6 is divided by a partition 7 into upper and lower compartments communicating by a central conduit 12. A ring of bells 13 suspended from beams 15 round conduits 14 dip into ammoniacal liquor 16. The bells consist of baffles 21 - - 26 arranged in three spaced sets, each of which comprises an inner plate with a large num. ber of small orifices 27 and an outer plate with a fewer number of larger orifices or slots 28. A dished baffle 33 supplied with liquor from a pipe 35 is situated over each conduit, overflow of liquor preventing clogging of the orifices. Additional liquor may be supplied through a pipe 38. The central conduit 12 has a number of vanes 43 imparting a whirling motion to the gas passing to the lower chamber in which a radiator 46 or steam coil is arranged round a rectangular baffle 45. Gas passes through openings 47 beneath the radiator to the outlet 6. Tar impinging on the conduit walls collects in a channel 48 having a steam coil 51 and drain 49. Automatic means may be provided for controlling the depth of liquor in the bath 16 so that the level is caused to fall, thus exposing additional orifices when a considerable number become obstructed.
Patent GB-608374-A (GB)
Title: Improvements in or relating to bearings
IPC: F16C33/14
Filed: 1946-02-21
Abstract: 608,374. Making compound bearings. FORD MOTOR CO., Ltd. Feb. 21, 1946, No. 5435. Convention date, March 17, 1945. [Classes 83 (ii) and 83 (iv)] Rolling annular bodies ;axial rolling.-In a method of making bearing surfaces, a thin coating of a relatively soft bearing metal is applied to one surface of a cylindrical relatively hard metal backing member and the coating is subjected to a load sufficient to cause lateral displacement of the surface relatively to the inner bonded layer. The load is applied by rolling the composite member, which treatment is stated to modify the crystalline structure of the coating and so improve its wearing qualities. Should the bond between the backing and coating be defective, the rolling will produce visible blisters, thus enabling the defective articles to be readily detected. A cylindrical bearing member 32 with a coating 33 may be rolled in the apparatus shown in Fig. 1, which comprises driven rolls 12 supporting and frictionally rotating the work and an upper roll 23 carried by a forked arm 21 pivoted at 22 and connected by a link 26 with an arm 25 to which a weight 28 is applied to press the roll on to the work. A hand lever 29 enables the roll 23 to be lifted to allow the insertion or removal of the work. Fig. 5 shows diagrammatically the arrangement for rolling an annular bearing surface, the bearing spell 35 being rolled between a driven roll 31 and loaded roll 23. In a preferred form, the backing member 32 is of steel and is electroplated with silver to a thickness of..005 to .008 inches. The plated member is then turned in a lathe to provide a smooth bearing surface, leaving a layer of silver .004 inches thick after which the member is rolled as described. If no defect appears, a film of lead .002 inches thick may be deposited over the silver. In either case a microscopic acid-resisting film of indium is deposited over the silver or lead.
Patent GB-237554-A (GB)
Title: Improvements in the production of castings containing silicon
IPC: B22D27/04
Filed: 1925-02-27
Abstract: 237,554. Rheinische Eisengiesserei & Maschinenfabrik Akt.-Ges., (Assignees of Doeblin, F.). July 26, 1924, [Convention date]. Moulds.-When casting iron containing 10 per cent or more of silicon heated moulds are employed. For castings containing 10 per cent of silicon and 10 m.m. thick the moulds are preheated to 500‹ C., if 50 m.m. thick to 350‹ C., or if 20 per cent silicon and 10 m.m. thick to 150‹ C.