baber/WOPTO huggingface dataset:
Patent GB-724992-A (GB)
Title: Improvements in sewing machines
IPC: D05B1/06
Filed: 1953-01-16
Abstract: 724,992. Sewing-machines. UNION SPECIAL MACHINE CO. Jan. 16, 1953 [Jan. 18, 1952], No. 1324/53. Class 112. Feed; lock-stitching by rotary hook; multiple-needle machines. In needle-feed lock-stitch machine with a vertical-axis rotary hook and the usual feed-dog co-operating with the needle, the underside of the feed-dog is provided with guard means to keep the needle-thread loop, as it is being drawn out by the hook, from catching over the upper surface of the feed-dog. The invention is particularly applicable to a twoneedle machine in which both hooks 28, 30 (Fig. 2) rotate in the same direction (clockwise as shown), so that one of the hooks (30) draws its needle-loop out rearwardly, and this loop is liable to balloon out and catch over the corner of the feed-dog 24, the thread then being broken by the action of the take-up. In the form shown in Figs. 5 and 7 the feed dog has a divided upper portion with the main feeding surfaces formed on outward flanges 88, 90, and the guard in question is constituted by a rib 110 formed at the rear of the under surface of the flange 90 (adjacent to the hook 30 which takes its loop in a rearward direction). A similar rib may be formed at the front of the other flange 88 to confine the other needle-loop which is thrown forwards by the hook 28. The hooks are driven by spiral gears 52 from a shaft extending along the machine bed, and the thread cases 66 are prevented from rotating by projections 67 engaging notches in the underside of the throat-plate; the bobbins 68 are retained by spring arms 68a. Hook opener means are provided to shift the thread cases in a counterclockwise direction at the appropriate time in each stitch-forming cycle to facilitate movement of the needle threads part the projections 67; these means comprise fingers 70 mounted on rock-shafts 74 and engaging with projections 76 on the threadcases. The bobbin threads are tensioned by screwadjusted spring members 71 beneath which the threads pass and which have fingers 71a that may bear frictionally on the bobbins. The feed-dog has a downwardly-extending portion 98 which is secured to a vertical part of a feed-bar 100 attached to a downwardly-extending lift-eccentric strap 102 and to a feed-rocker 106. The body of the feed-dog is recessed on each side at 118 to clear the needles and threads. Needle-guides. A member 116, Fig. 5, of trapezoidal form with its sides inclined upwardly and inwardly, projects between the needles from a channel-shaped attachment portion 112, which fits over and is fixed to the shank of the feed-dog 24. Lubricating. Each hook-shaft has a helical groove to raise oil which is fed to its lower end from a reservoir through a filter and a regulating valve; Specification 564,468 and U.S.A. Specification 2,329,484 are referred to.
Patent GB-265000-A (GB)
Title: Improvements in or relating to electric storage batteries or electric accumulators
IPC: H01M2/16
Filed: 1926-01-18
Abstract: 265,000. Fuller's United Electric Works, Ltd., and Whaite, S. C. Jan. 18, 1926. Separators.-A storage battery plate a is provided on each side with a sheet of glass wool b, a sheet or wrapping of perforated ebonite &c. c and a wood separator c which may be grooved.
Patent GB-651269-A (GB)
Title: Manufacture of an antibiotic agent
Filed: 1948-01-16
Abstract: An antibiotic agent is obtained by treating a culture filtrate of Actinomyces vinaceus with an adsorbent such as activated carbon, kaolin or other earth, eluting the adsorbent with an acidified alcoholic elutriant or a mixture of an alcohol with another solvent comprising dimethylcarbonate and methanol, or benzene and ethanol or chloroform and methanol, and precipitating the active principle from the elutriate with a diluent miscible with the elutriant namely ether, petroleum ether, pentane or hexane.  A suitable medium for the culture of the actinomycetes comprises sources of carbon and nitrogen such as carbohydrates, e.g. dextrose, sucrose or lactose, glycerol, peptone, hydrolysed casein and sodium nitrate with further inorganic salts such as potassium, magnesium and ferrous, chlorides, sulphates and phosphates.  In examples: (1) the filtrate from the growth of a strain of Actinomyces vinaceous on a culture medium containing dextrose, beef-extract, peptone and sodium chloride, is treated with activated charcoal, the adsorbed antibiotic is eluted with a mixture of dimethyl carbonate and methanol and diethyl ether is added to precipitate the antibiotic; (2) the antibiotic is adsorbed on charcoal as in (1) and after washing with methanol is eluted with a solution of hydrogen chloride in methanol, precipitated by the addition of petroleum ether and the product is purified by chromatographic adsorption on alumina, followed by elution with methanolic hydrogen chloride, and (3) Actinomyces vinaceus is cultivated on the medium used in to which a silicone antifoaming agent is added and the medium is aerated by passing a current of air through the broth, the filtrate is extracted as in (1) or (2).
Patent GB-742936-A (GB)
Title: Improvements in or relating to firegrates
IPC: F24B1/193
Filed: 1953-01-19
Abstract: 742,936. Firegrates. SMITH, D. Jan. 7, 1954 [Jan. 19, 1953], No. 1458/53. Class 126. A firegrate of the kind which can be placed in an existing fireplace to enable slow combustion of the fuel to be obtained at will is associated with a part having an open bottom, imperforate back and side walls and a front wall, which, with the aid of the floor of the fireplace, prevent air from reaching the underside of the firegrate accidentally. A grate 1 is supported by lugs 6 in a frame 2 having a raised front 5 to retain fuel on the grate. The frame 2 rests on a plinth 3 having a solid back and sides, and a separate front 4 with a hit and miss damper 16 enables the air supply below the grate to be controlled. A stepped lug 8 at the front of the frame 2 engages a notch in front of the grate 1 and prevents the front 4 being pushed too far in. Lugs 13 on the plinth 3 locates the frame 2 on the plinth to which it may be secured by screws.
Patent GB-1219341-A (GB)
Title: Substituted quinolines
IPC: C07D215/18
Filed: 1968-01-10
Abstract: 1,219,341. Preparation of dichloroquinolines. ROUSSEL UCLAF. 10 Jan., 1968 [10 Jan.,   1967], No. 1495/68. Heading C2C. Dichloroquinolines of the structure are prepared by reacting a 4-oxo-q-chlorotetrahydroquinoline with a chlorinating agent such as phosphorus oxychloride. q may be 5, 6, 7 or 7 or 8. The reaction may take place in the presence of a chlorination catalyst such as iodine, copper chloride, ferrous or ferric chloride and phosphorus pentachloride or trichloride. The starting compound is prepared by cyclizing a 3- (chloroanilino)propionic acid with a dehydrating cyclizing agent. The 3-(chloroanilino)propionic acid is prepared by condensation of a chloroaniline with #-propiolactone acrylic acid or alkyl acrylate and in the last instance the resulting ester is saponified to produce the free acid.
Patent GB-635614-A (GB)
Title: Process and means for the production of vacua
IPC: F04F9/00
Filed: 1947-01-16
Abstract: 635,614. Condensation pumps. ALEXANDER, P. Jan. 16, 1947. No. 1544. Drawings to Specification. [Class 71] A process of producing or maintaining vacua within a range of pressure of the order of 0.1 mm. to 10 mm. or less comprises employing a vacuum vapour pump with substantially water-free glycerine as the operating liquid. The pump construction is as described in Specification 597,335.
Patent GB-851208-A (GB)
Title: Process for the production of titanium boride coatings
IPC: C23C28/00
Filed: 1959-01-15
Abstract: In a process for producing a titanium boride coating on an article having a melting point over 780 DEG C. and containing at least at its surface a metal capable of forming borides or a carbide or nitride thereof, the surface to be coated is first subjected to an atmosphere containing hydrogen and a boron halide at a temperature between 600 DEG C. and 1200 DEG C. to form a boride diffusion layer and is then subjected to an atmosphere containing hydrogen, a boron halide and a titanium halide at a temperature between 780 DEG C. and 1000 DEG C. until a titanium boride coating at least 2m  thick is formed over the diffusion layer, neither operation being performed at a temperature above the melting point of the article.  Coating may be effected in three ways, viz. (a) the article may be subjected to an atmosphere containing only hydrogen and boron halide at a temperature of 600 DEG C.-780 DEG C. to form the diffusion layer and the temperature then raised above 780 DEG C. and titanium halide added to the atmosphere to deposit titanium boride, (b) the article may be subjected to an atmosphere containing only hydrogen and boron halide at a temperature above 780 DEG C. to form the diffusion layer and titanium halide then added to the atmosphere to deposit titanium boride at the same temperature, and (c) the article may be subjected to an atmosphere containing hydrogen, boron halide and titanium halide at a temperature of 600 DEG -780 DEG C. to form the diffusion layer and the temperature then raised above 780 DEG C. to deposit titanium boride. Specified halides are BCl3 and TiCl4 and the reaction gas mixtures may be diluted with an inert carrier gas, e.g. argon or nitrogen.  Coatings may be formed on surfaces of iron group metals and alloys, particularly steels containing at least 1% of at least one of V, Cr, Mo and W, and on surfaces of Ti, Zr, Hf, V, Nb, Ta, Cr, Mo and W, or nitrides or carbides of these metals. After coating, steels may be quenched to room temperature.  The coating of the following articles is disclosed:- steel thread-guide rollers, steel mandrels for tube drawing, wire-drawing dies made of a steel consisting of C 1.2%, W 8%, Mo 5%, Cr 4%, V 2.5%, Co 12%, remainder Fe, molybdenum evaporator boats and feeler needles, and cold-shaping tools made of WC-Co hard metal.
Patent GB-460472-A (GB)
Title: Improved process and apparatus for drying plastic or semi-plastic material
IPC: F26B17/28
Filed: 1936-01-17
Abstract: <PICT:0460472/III/1> <PICT:0460472/III/2> <PICT:0460472/III/3> Plastic or semi-plastic materials such as magnesium carbonate, copper sulphate, lead arsenate, calcium arsenate, iron blue, paint, sulphur sludge, clays, and dyestuffs are partially dried and formed into small pieces of uniform cross-section to facilitate final drying by apparatus comprising a drum 1 into circumferential grooves 25 of which the material from a hopper 40 is pressed by a roller 31 and is retained by means moving with the surface of the drum, e.g. an adjustable perforated elastic band 50 or further rollers.  The drum 1 is heated by steam entering through a pipe 24, a hollow trunnion 9 and apertures 14 and exhausting through pipes 18, 16 and 23; the roller 31 is similarly heated.  The material is re-pressed into the grooves which are tapered in cross-section, Fig. 7, by a roller 41 preferably carried by pivoted arms 42.  The material is removed from the grooves by flexible blades 65 and passes down the part 50b of the band or a shoot to a known drying apparatus employing a perforated endless belt conveyer travelling through a chamber or comprising an inclined rotary cylinder.
Patent GB-227866-A (GB)
Title: Improvements in or relating to flying machines
IPC: B64C3/42
Filed: 1925-01-19
Abstract: 227,866. Rietti, G. Jan. 19, 1924, [Convention date]. Steering, balancing, and regulating altitude; stopping way.-The main planes 1 of an aeroplane are hinged or otherwise articulated in such a manner that thev may be moved about inclined axes 3 converging towards the front of the machine, so that when the planes are moved upwards they form a V. The operating means for moving the wings may be associated with operating mechanism for modifying or reversing the pitch of the propeller, for example when landing. The wings 1 are resiliently supported by rods 4 connected to the wing framework and to pistons adapted to be reciprocated in cylinders 5 under fluid pressure controllable by the pilot.
Patent GB-743900-A (GB)
Title: Improvements in or relating to laminated materials and methods of making the same
IPC: B32B27/00
Filed: 1951-05-22
Abstract: 743,900. Laminated vulcanized fibre. MACECHERN & CO., Ltd., and GEORGE, W. A. May 19, 1952 [May 22, 1951], No. 1681/55. Divided out of 733,914. Classes 96 and 140. A laminated material consists of superposed sheets of vulcanized fibre with adjacent sheets laid cross-grained and united by adhesive under pressure. The adhesive, which may be applied as a coating on one or both sides of the component sheets or as an additional interposed sheet, may be cold-setting, or a hot-setting synthetic resin such as phenol-, cresol-, or melamine formaldehyde. Sheets of paper or fabric impregnated with a thermoplastic or thermosetting resin may be inserted in the laminate. The material may be shaped or machined to form parts of apparatus or rods.
Patent GB-555336-A (GB)
Title: Improvements relating to picks for loading machines
IPC: E21F13/06
Filed: 1942-02-10
Abstract: 555,336. Loading machine picks. MOORE, M. S., and MINING ENGINEERING CO., Ltd. Feb. 10, 1942, No. 1747. [Class 78 (iv)] A pick for the rotary loader bar of a loading machine has a shank 1 surmounted by a threepronged head 2. The prongs are arranged fanwise, and comprise a central blunt projection 3 co-axial with the shank 1, a leading pick point 4a, and a following projection 5 which serves to heave the broken coal on to the loader conveying belt. In making the pick the projection 3 is originally much extended and serves for chucking the pick in a lathe for turning the shank 1, being subsequently parted off. The shanks, 1 are removably driven into diametral holes arranged in double helical formation along the loader bar, and the heads 2 pass between the teeth of a comb for clearing. Specifications 357,816 and 421,114 are referred to.
Patent GB-1190904-A (GB)
Title: Digital Data Receiver
Inventor: SENIZERGUES ANDRE
IPC: H04L9/12
Filed: 1969-01-13
Abstract: 1,190,904. Digital transmission systems. INTERNATIONAL BUSINESS MACHINES CORP. 13 Jan., 1969 [16 Jan., 1968], No. 1924/69. Heading H4P. A receiver, fed by a digital signal comprising blocks of d data bits separated by s synchronizing bits, is synchronized by circuitry comprising a comparator, which compares groups of the received signals with locally generated sync. bits, and a counter which is incremented or decremented depending upon the comparator output. In the embodiment described the received signal is in ciphered form. The signal and a key signal are fed to a signal register and a key register, respectively, each of capacity s-bits, the registers' serial outputs being modulo-2 added to provide the clear text. The parallel outputs of the registers pass to a comparator in which corresponding bits are modulo-2 added, a counter giving an output if the number of unlike bits in the compared synchronized sequences is less than, for example, 3. At the end of each cycle of d + s clock pulses the counter output is sampled. If there are less than 3 inequalities, resulting in a " positive " comparison, a second counter having a maximum count of 8 is incremented by one unless the counter is already at count 8. The counter is decremented if there are more than 2 inequalities. Should the counter reach zero loss of sync. is assumed and a resynchronization process takes place. In this process the key signal generator and register are stepped forward very rapidly by 4(d + s) steps and are held in the position attained while comparison is made, at received bit rate, between the contents of the key register and the words successively appearing in the signal register. If no positive comparison occurs during a period of 8(d + s) received bits the key generator and register are stepped rapidly by 8(d + s) steps, and further comparison takes place over a period of 8(d + s) bits. This cycle repeats until a positive comparison occurs, whereupon the second counter is incremented and the resynchronization process stops, it being re-initiated if the counter reverts to zero.
Patent GB-563993-A (GB)
Title: Improvements in the production of pigment mixtures and of coating composition prepared therewith
IPC: C09C1/00
Filed: 1942-02-13
Abstract: 563,993. Camouflage paints; pigments. HEXTER, P. L., and SHEPHEARD, R. Feb. 13, 1942, No. 1957. Convention date, - May 23, 1941. [Class 95] Pigment mixtures for use in the camouflage of military equipment are prepared by blending pigments to produce a visually dark natural foliage tint, using one pigment having a high infra-red reflectance value and another pigment possessing a high infra-red transmittance value, whereby visually the resultant pigment mixture closely resembles natural foliage tints, and when photographed on infra-red emulsions produces thereon approximately the infra-red reflectance value of natural foliage. Specified pigment mixtures consist of : (1) chrome yellow, toluidine maroon, asbestine and silica ; (2) chrome yellow, cerulean blue, toluidine maroon and silica ; and (3) chrome yellow, cerulean blue and silica. In the above mixtures, the chrome yellow and the silica possess high infra-red reflectance values, while the toluidine maroon, cerulean blue and asbestine possess high infra-red transmittance values. The pigment mixtures may be mixed with any common paint, lacquer, varnish or cold water binders to provide coating compositions. Reference has been directed by the Comptroller to Specification 470,090 and to " Paint and Colour Mixing," by A. S. Jennings, 1926, page 133.
Patent GB-106103-A (GB)
Title: Improvements in and relating to Rotary Engines, Pumps and the like.
Inventor: CONKLIN BRUCE
IPC: F04C18/20
Filed: 1916-02-10
Abstract: 106,103. Conklin, B. Feb. 10, 1916. Drawings to Specification. Movable-abutment type; fixed-abutment type; driving-pumps.-Relates to rotary engines of the kind described, for example, in Specifications 20917/13 and 13743/14, wherein rotary abutments carried by an inner stationary drum co-operate with piston vanes carried by an outer rotary member, and consists in fitting the outside of the rotary member (a) with additional vanes co-operating with rotary abutments which are mounted in an outer stator forming an outer working chamber for use as a pump or low-pressure stage of the engine, or (b) with a dynamo winding located between the poles of a field magnet so as to generate electricity.
Patent GB-228532-A (GB)
IPC: C10B7/00
Filed: 1925-01-23
Abstract: 228,532. Dobbelstein, O., and Hess, H. Feb. 2, 1924, [Convention date]. Heating pulverulent and broken materials, furnaces for; hearths.-A kiln or heating-apparatus for use in drying, coking, or otherwise treating materials such as coal, ores, bituminous slate, &c., comprises a rotary annular hearth formed with deep grooves a for the material alternating with spaces b for the circulation of heating- gases. The material is fed into the grooves from an overhead hopper x and is scraped out after treatment by a bucket-wheel elevator or by ploughs g, which deliver it to a radiallyarranged conveyer h. The enclosing casing d may be divided by radial partitions so that the distillation products evolved at different stages can be collected separately. The heating-gases travel through the spaces b in counter-current to the material and the floor of the heating-space e is inclined as shown from the inner to the outer periphery. In a modifiled form of apparatus the hearth is stationary and the casing d with the hopper and ploughs rotates, and in a further form the bottoms of the grooves a are formed by stationary plates having gaps at the discharging- point.
Patent GB-588194-A (GB)
Title: Internal combustion engines having combustion spaces common to several pistons
IPC: F02B75/28
Filed: 1945-01-26
Abstract: 588,194. Driving gear. WILSON, W. B., and SUTCLIFFE, R. U. Jan. 26, 1945, No. 2143. [Class 7 (ii)] In an engine in which two pistons of different diameter are acted on by the same impulse, the pistons are connected to a crank system so that the smaller piston leads the larger piston by an angle of between 60 degrees and 75 degrees. As shown, the two pistons 1, 2 are connected by rockers 22, 23 and rods 26, 27 to a crank shaft 16 having crank throws arranged so that the smaller piston 2 leads by an angle of 67.5 degrees, the valve timing being normal for the larger piston 1. The shaft 16 may be replaced by two shafts geared together and jointed to the rods 26, 27, independently.
Patent GB-566028-A (GB)
Title: Improvements relating to the separation and recovery of secondary olefins
IPC: C07C7/171
Filed: 1943-02-09
Abstract: Secondary olefins such as propene and normal butene and amylene are separated from hydrocarbon mixtures by contacting with sulphuric acid of about 70-90, preferably 83 per cent concentration, and treating the acid extract with a gaseous or liquid paraffin such as propane, pentane or hexane having a boiling point at least 20 DEG  C. different from that of the secondary olefin.  The olefin is then recovered from the paraffin by fractionation.  An extract of normal butene in 83 per cent acid containing 1 mol. of olefin per mol. of acid may be passed down a tower in countercurrent to propane gas at 30 DEG  C. and normal pressure.  The exit gas contains 25 per cent normal butene which is separated from the propane by fractionation. The extract leaving the base of the tower contains 0.2 mol. of olefin per mol. of acid and is recycled to the acid absorption stage. Alternatively, extraction may be effected with liquid pentane, the extract containing about 10 per cent normal butene.  The extraction or stripping operation is effected at temperatures below that at which substantial polymerization of olefin occurs, generally at 0-60 DEG  C.
Patent GB-305166-A (GB)
Title: Improvements in or relating to electric signalling systems
IPC: B66B1/50
Filed: 1929-01-22
Abstract: 305,166. Societe Technique d<,>Etudes et d'Entreprises pour l'Industrie, and Huguenin, A. Feb. 1, 1928, [Convention date]. Tell-tale apparatus.-In a system for indicating at a distance the position of apparatus, such as a valve, the apparatus controls a core 4 which co-operates with a part 1 of a magnetic circuit to form air gaps of constant and variable lengths and is movable relatively to a coil 5, 6 the former part of which generates a voltage to operate an indicating instrument 9 under the influence of a magnetic field produced by the part 6 which is supplied from a source of alternating current. In a modification the source of alternating current is applied to the whole coil and an indicating instrument is connected in series.
Patent GB-561893-A (GB)
Title: Improvements in and relating to variable flow hydraulic pumps
IPC: F04B1/14
Filed: 1941-02-18
Abstract: 561,893. Smash-plate pumps. POWERED MOUNTINGS, Ltd., NASH, A. G. FRAZER-, and WAGHORNE, H. Feb. 18, 1941, No. 2214. [Class 102 (i)] In a multi-cylinder swash-plate pump, the delivery of liquid is automatically controlled in accordance with the pressure developed by transmitting the pressure reaction on the pistons 13 through the swash-plate 6, 8, a cam-following roller 35 and a cam 37, to springs 44 which abut against a surface 45 on the pump casing 1. The swash-plate comprises a non-rotatable ring 8 and a rotatable collar 6 with ribs 34 which carry the roller 35 and a member 32 to counterbalance the roller, whilst the cam has an extension 40 carrying a sleeve 42 with a recess 43 for the springs 44. The sleeve 42 has surfaces 46 engaged by the ends 47 of arms 48 on a fork member 49 which is pivoted at 50 within the casing 1 and carries a yoke piece 51 having a surface to co-operate with an eccentric 53 on a shaft 54. Rotation of this shaft therefore moves the cam 37 axially in opposition to the springs 44 and different portions of the cam contour are presented to the roller 35 to reduce the inclination of the swash-plate and the output, without stopping the pump.