baber/WOPTO huggingface dataset:
Patent GB-339260-A (GB)
Title: An improved variable dividing machine for dough
IPC: A21C5/04
Filed: 1929-09-03
Abstract: 339,260. Mason, J. V. Sept. 3, 1929. Cylinder machines. - A dough-dividing ma. chine has a rotatable drum in which an adjustable doubleended piston slides so that dough fed into one end ejects a measured quantity from the other. A hopper a containing dough is fixed above a feed roller b, which may be roughened. A drum c receives the dough in a pocket c<1> in which an adjustable piston d slides. The piston d has cam-shaped faces d', d<2> the leading edges of which are flush with the drum surface and the following edges protrude. A roller f and scraper g bear against the surface of the drum by springs and the roller b has a scraper h. The roller b is driven by a system of fast and loose pulleys and is geared to the drum c by spur wheels n and n'. A conveyer k is situated below the drum c and is also geared to it. The piston d is divided into two portions and is adjustable by means of a central screw worked by a handle and two bevel wheels. Thus the size of the dough-receiving pocket may be varied. The dough is fed into the drum c by the roller b and the excess dough cut off by the edge e<1> and returned to the hopper a. As the drum rotates the next load of dough forces out the first on to the conveyer k. More than one piston may be used.
Patent GB-628038-A (GB)
Title: Improvements in or relating to vibrating beam test apparatus
IPC: G01N3/32
Filed: 1946-09-06
Abstract: 628,038. Automatic control systems. JENNINGS, R. E., and FOSTER TRANSFORMERS & SWITCHGEAR, Ltd. Sept. 6, 1946, No. 26810. [Class 38 (iv)] In apparatus for controlling the vibrations of a test beam adapted to be driven by a motor under the control of a rotating eccentric weight, the mechanical vibrations of the beam are converted into an electrical signal which is arranged to control the motor so that any change in amplitude of vibration of the beam is compensated. Conversion of the mechanical vibrations into an electrical signal is attained by means of a shutter SHT attached to the beam and oscillating between a lamp LP and a photo-electric cell PC. The resulting alternating voltage is amplified in valves V7 and V8, fed to a phase-splitter V9 and in pushpull to a rectifier V10, part of the output from the valve V9 being applied as negative feedback to the valve V7. The D.C. output is developed across a condenser C4 and compared in a D.C. amplifier valve V4 with a standard voltage across a potentiometer R5, R6. The difference voltage is applied to one grid of a valve V5 acting as a bridge circuit normally in balance and fed with H.T. D.C. volts and mains frequency voltage. The resulting outof-balance A.C. voltage across the anodes of the valve V5 is transformed by a transformer T3 to two similar voltages in separate circuits, these being injected with quadrature components from two windings W2, W3 of a transformer T2 into the grids of two thyratrons V11 and V12. The output voltage from the thyratrons controls the field of a D.C. motor controlling the beam, so that any variation in amplitude of vibration of the beam brings about a change in speed of the motor so as to nullify the original change in amplitude. Specification 599,136 is referred to.
Patent GB-839194-A (GB)
Title: Method and apparatus for the transfer of heat by molten substances
Inventor: PAYNE HUGH FREDERICK
IPC: F24D7/00
Filed: 1955-09-20
Abstract: A molten mixture of salts such as 40% sodium nitrite, 7% sodium nitrate, and 53% potassium nitrate, is circulated in a system (see Group XIII) for heating or cooling (comparatively speaking) equipment such as chemical reaction vessels.
Patent GB-1454610-A (GB)
Title: Mounting strap for mounting a mounting sheet on a printing cylinder
IPC: B41F27/12
Filed: 1974-12-05
Abstract: 1454610 Straps CONTAINER GRAPHICS CORP 5 Dec 1974 [8 April 1974] 26837/76 Divided out of 1454609 Heading A4X [Also in Division B6] A strap 48 for attaching a plate mounting sheet to a printing cylinder (see Division B6) has a first portion 50 with an elongate part 62 of plastics material which may be passed through a hole in one edge of the mounting sheet and folded back under itself; a second portion 52 having means e.g. integrally formed hook 68 for engagement with the printing cylinder; the first and second means being inter-connected by resilient means 54. Preferably, as shown, the resilient means is formed by two endless resilient bands so that, if one breaks, the strap does not part. The bands pass through four slots 58, 70, two on each part, the two being interconnected by slits 60, 72 to enable the bands to be attached. An extension piece Fig. 6, (not shown) may be provided for the strap, the piece having a single slot for the elongate part 64, and its own elongate part for co-operation with the mounting sheet slot.
Patent GB-455528-A (GB)
Title: Improvements relating to tobacco pipes
IPC: A24F3/02
Filed: 1935-09-30
Abstract: 455,528. Tobacco pipes. SHOTTON, J. C., 1079, Forest Cliff Drive, Lakewood, Ohio, U.S.A. Sept. 30, 1935, No. 26938. [Class 130] To facilitate the passage of a cleaning brush and provide a uniform base extending through the mouthpiece and stem, a metal tube 4 is inserted in an enlarged bore in the stem and communicates with the bowl through slots 4a. The outer end of the tube 4 is closed by the perforated end 6 of a tube 5, which is provided with slots 5a to control the area of the slots 4a. The quantity of air drawn in through the perforated end 6 is controlled by a perforated rotatable disc 8.
Patent GB-1208478-A (GB)
Title: Process for producing pure phthalic anhydride
Inventor: GARKISCH OTTO
IPC: C07C51/573
Filed: 1968-06-06
Abstract: 1,208,478. Phthalic anhydride. METALLGESELLSCHAFT A.G. 6 June, 1968 [7 July, 1967], No. 26989/68. Heading C2C. [Also in Division B1] Pure phthalic anhydride is recovered from the oxidation product of o-xylene and/or naphthalene by a process wherein the oxidation product is subjected to batch distillation in a first distillation stage successively to separate the low boiling components and a stream comprising partially purified phthalic anhydride as separate fractions from higher boiling components and from residue-forming components, and wherein phthalic anhydride is continuously distilled from the partially-purified phthalic anhydride under subatmospheric pressure in a second distillation stage.
Patent GB-1304335-A (GB)
IPC: H01J61/20
Filed: 1971-04-19
Abstract: 1304335 Cadmium amalgam SPETSIALNOE KONSTRUKTORSKO-TEKHNOLOGICHESKOE BJURO ISTOCHNIKOV SVETA 19 April 1971 [25 May 1970] 27044/71 Heading C7A [Also in Division H1] An amalgam contained in a low-pressure mercury-vapour discharge lamp comprises: mercury 15-20 atoms per cent, cadmium 53-38 atoms per cent, tin 20-25 atoms per cent, and bismuth 12-17 atoms per cent. The melting point is in the range 190-210C.
Patent GB-1107854-A (GB)
Title: A method of heat treating high strength aluminum alloys
Inventor: ROTSELL WAYNE CARLETON
IPC: C22C21/10
Filed: 1965-06-25
Abstract: A high strength aluminium-base alloy of the copper-zinc-magnesium type is solution-treated at 860 DEG -890 DEG F., quenched in water, and precipitation hardened by first heating at 205 DEG -225 DEG F. for 6-10 hours, followed with or without intermediate cooling to room temperature by heating to 300 DEG -380 DEG F. for 2-48 hours.  It is stated that the alloy is rendered substantially non-susceptible to stress-corrosion cracking while retaining 80% of its strength properties.  The process is generally applied to alloys having the composition: .Cu.1.2-2.6 .Mg.2.1-3.4 .Zn.5.1-8 .Cr.0.18-0.4 .Al.balance
Patent GB-196229-A (GB)
Title: Improved vehicle tyre tread
IPC: B60C11/04
Filed: 1922-10-07
Abstract: 196,229. North British Rubber Co., Ltd., and Johnston, A. Oct. 7, 1922. Tread projections and surfaces.- A tyre tread comprises a central circumferential rib 5, spaced triangular projections 6, and intervening spaced side blocks 7 having their apices connected to the rib 5 so as to form Y-shaped depressions 9 at the sides cf the projections 5. In a modification, the projections 5, 7 on the two sides are staggered. The tread formation is a modification of that described in Specification 2887/14.
Patent GB-916949-A (GB)
Title: Process for increasing the ratio of fructose to glucose in sugar solutions
Inventor: KETT GEORGE
IPC: C13K3/00
Filed: 1958-08-25
Abstract: In a process for increasing the ratio of fructose to glucose in invert sugar, an aqueous 10 to 15% solution of invert sugar is subjected to aerobic fermentation, by a submerged mixture of the enzymes glucose oxidase and catalase, at a temperature between 25 DEG and 40 DEG  C. and a pH between 3.5 and 5.6 maintained as by adding an alkali such as sodium hydroxide or carbonate.  Air, e.g. enriched with oxygen, may be passed into the solution at the rate of 4 to 4.25 litres per litre of solution per minute.  Alternatively, oxygen may be passed in at the rate of 1.33 litres per litre per minute.  When the fermentation is carried out in the presence of air, 0.1% of the enzyme mixture, computed on the weight of the sugar solids in the solution, is used.  When air enriched with oxygen is present, 0.05% of the enzyme mixture is used.  The fermented solution may be treated with a cation-exchange resin to remove sodium ions and, if desired with an anion-exchange resin to remove gluconate ions.  Fermented aqueous solutions may be produced comprising, by weight, 16 to 20% of fructose, 10.5 to 13.5% of glucose and 2.7 to 3.9% of gluconic acid.
Patent GB-242631-A (GB)
Title: Improvements in or relating to range finders
IPC: G01C3/22
Filed: 1925-10-29
Abstract: 242,631. Goerz Optische Anstalt Akt.-Ges., C. P. Nov. 6, 1924, [Convention date]. Range-finders. - Range-finders utilizing the height above sea-level or the height of the target as a base, comprise a sighting telescope 17 adapted to be trained and elevated and supported in the vertical plane by a rotatable cam 7, the radii of which are exponential functions of the angles of rotation of the cam, so that the inclinations of the telescope may be read off directly as ranges on a logarithmic circular scale. An additional cam 8 provided on the same axle 6, whereby a correction is added on account of the curvature) of the earth's surface and the refraction of the air. In determining a range the cam 8 is first rotated by the worm 11 mounted on the cam 7 to adjust the position of the axle 6 for the corrections above mentioned and then the cam 7 is rotated by the axle 6 until the target is sighted in the telescope 17. The range is then read off the circular scale mounted on the axle 6 against a pointer fixed on the arm 5. The range scale, being logarithmic, may be set with the upper mark of the pointer 7a to indicate the height of the instrument, and thus enable the range to be determined at any height of the instrument. When utilizing the height of the target the range scale is set to the lower of the marks on the pointer 7<a> and an adjustable prism and reflector device, Fig. 6, is placed in front of one half of the objective, so that a double image is produced. One of the reflectors 25 is rotatable and the variable prism consists of two lenses 22, 23 the contacting surface having a radius equal to the distance from the pivot 4. The telescope is adjusted by the cam until the lower point of the target in the eyepiece can be brought into coincidence with the upper end by rotating the mirror 25. Mathematical formulae on which the invention is based are set out in the Specification.
Patent GB-757485-A (GB)
Title: Manufacture of new cobaltiferous azo-dyestuffs
IPC: C09B45/20
Filed: 1952-10-29
Abstract: The invention comprises complex cobalt compounds of monoazo dyestuffs free of sulphonic and carboxylic acid groups of formula R - N = N - A - NH2 where R is the residue of a hydroxybenzene bound to the azo linkage in ortho position to the hydroxy group, and containing a methylsulphone group, and A is a naphthalene residue bound to the azo linkage in a position vicinal to the amino group.  They are made by treating the monoazo dyestuff with agents yielding cobalt.  The monoazo dyestuffs are made by diazotizing an appropriate ortho-hydroxy - amino - benzenemethyl sulphone, e.g. 4 - chloro - 2 - amino-1 - hydroxybenzne - 5 - or - 6 - methyl sulphone, 6 - chloro -2 -amino - 1 - hydroxybenzene - 4 - methyl sulphone and 2-amino-1 - hydroxybenzene - 4 - or - 5 - methyl sulphone, and coupling in acid or neutral media with the desired aminonaphthalene such as 6 - bromo -, - methyl - or - methoxy-2 - aminonaphthalene or 2 - aminonaphthalene or its 1-sulphonic acid see Specification 756,148. Preferred dyestuffs are those derived from methylsulphonyl - hydroxybenzene or a chloro substituted derivative thereof and 2 - amino - naphthalene.  Treatment with agents yielding cobalt is advantageously effected in a weakly acid, neutral or especially alkaline medium.  Advantageously one atomic proportion of cobalt per molecular proportion of dyestuff is used.  Agents yielding cobalt may be complex cobalt compounds of aliphatic hydroxy - carboxylic acids, cobalt salts such as the sulphate and acetate, or the hydroxide. Complex formation is advantageously effected at raised temperature if desired in the presence of salts of organic acids, bases or solvents. The dyestuffs are used for dyeing and printing silk, leather, superpolyamide and superpolyurethane fibres and especially wool in grey tints.  Examples are provided, showing the use of some of the above specified reagents in the preparation of dyestuffs.
Patent GB-1428950-A (GB)
Title: Rubber spring
IPC: F16F1/42
Filed: 1972-06-12
Abstract: 1428950 Elastomeric springs W G CHALMERS 7 June 1973 [12 June 1972] 27281/72 Heading F2S An elastomeric spring has a substantially cylindrical external surface 20 and an axial cavity 21 extending between its end faces 11 and is characterized by the cavity 21 which has a relatively small cross-sectional area at the end faces 11 at a central plane P2, and a crosssectional area which reaches a maximum at two intermediate planes P1, the maximum transverse dimension of the cavity 21 at each intermediate plane P1 being less than one half the diameter of the external surface 20 at that plane P1. The cavity 21 may be of circular cross-section with a portion 25 of constant diameter adjacent the central plane P2. Figs. 2 and 3 (not shown) illustrate intermediate stages during compression.
Patent GB-205670-A (GB)
Title: Improvements in flow meters
IPC: G01F1/37
Filed: 1922-10-09
Abstract: 205,670. Rogers, F. H., (Republic Flow Meters Co.). Oct. 9, 1922. Pitot-tube apparatus.-A flow meter comprises a bell 20, Fig. 1, with an enlarged rim 21 floating in liquid 16 and having its interior and exterior connected with a source of differential pressure such as a Pitot-tube. The bell has a cup-shaped member 22 containing mercury or other conducting liquid co-operating with wires 48 depending from resistance coils 47 which are in circuit with an ammeter and an integrating wattmeter. Rods 53 limit the upward movement of the bell. The interior and exterior of the bell are connected to chambers 27, 32, Fig. 4, communicating with chambers 29. 34 receiving the pressures from the pitot-tube, and connected by a U-tube 38 containing mercury. In the case of a sudden surge in pressure., the mercury is blown from the U-tube before a similar effect is produced in the bell trough. When a condensing liquid is being measured, the liquid of condensation collects as shown, the remaining spaces in the apparatus being preferably filled with a light non-conducting oil.
Patent GB-616753-A (GB)
Title: Improvements in electrical screening harness structures for internal combustion engine ignition systems
IPC: H04B15/02
Filed: 1946-09-11
Abstract: 616,753. Cable harness. MARCONI'S WIRELESS TELEGRAPH CO., Ltd., and WASSELL, H. J. H. Sept. 11, 1946, No. 27338. [Class 36] [Also in Group XXVII] Part of the ignition system of an internalcombustion engine (see Group XXVII) is screened by enclosing the high-tension leads in rigid tubular housings 1, one for each head, that are grouped together as required and fastened as an assembly by clips 3 to the engine structure. A short length of flexible tubing 5 is provided near either one or both ends of one or more of the housings 1. Joints 4 between the flexible and rigid members 1 and 5 are preferably of a permanent nature, e.g. swaged, in order that satisfactory electrical continuity is thereby obtained.
Patent GB-629656-A (GB)
Title: Process for positive diazo-type and negative metal reproduction images and light-sensitive material therefor
IPC: G03C1/62
Filed: 1946-09-12
Abstract: 629,656. Photographic diazotype processes. FAIRWEATHER, H. G. C. (General Aniline & Film Corporation). Sept. 12, 1946, No. 27454. [Class 98 (ii)] A light-sensitive diazotype layer comprises a diazo compound capable of decomposing under the action of actinic light to produce a reducing agent, a coupling component which will form with the diazo compound an azo dye having high ultraviolet transmission characteristics, and a reducible non-light-sensitive salt of silver, mercury or thallium, the diazo compound being in such form that it will not react to convert the salt to a light-sensitive form. On exposure of this layer to ultra-violet light under a negative pattern and development with ammonia, an azo dye is produced in the parts protected from light and a metallic deposit in the parts exposed to the light, and the print as made is used as a transition print for production of positives on ordinary diazotype layers by exposure with ultra-violet light and ammonia development; thus a number of positives can be made from a negative without the necessity of wet-developing, washing or fixing operations. A list of diazo compounds which may be used includes 4-amino-N-ethyl- 1 - cyclohexylaminobenzene, 2.5 - diethoxy - 4 - phenylmercaptoacetylamino - 1 - aminobenzene, 4.4<SP>1</SP>-diamino-2.2<SP>1</SP>-5.5<SP>1</SP>-tetraethoxy triphenylmethane, N -benzene 1.2.3.4 - tetrahydroxy - 6 - aminoquinoline, 5 - amino - 2-methyl -N benzyl - 2.3-dihydroindole, 6 - amino - 9 - ethylhexahydro - carbazole, N-p-(aminophenyl)-morpholine, N- p - aminophenyl piperidine, N - ethyl - N - (4 - amino - 3 - methyl phenyl) - glycineamide, and 1-(p-aminophenyl)-pyrrolidene. Coupling components include 2.3-dihydroxynaphthalene, 1- amino - 8 -hydroxy - 3.6 -naphthalene disulphonic acid, 6-hydroxy naphthimidazole, R-salt, 2.3- dihydroxynaphthalene - 6 - sulphonic acid, H- acid, 2.4-dihydroxybenzaldehyde and dimethyldihydroresorcinol. Of the metal salts, silver, mercurous and thallous nitrates and sulphamates are particularly suitable. Paper, cellulose acetate foil or gelatin coated cellulose acetate foil may be used as ultra-violet light transmissive support for the layers. In eight examples the diazo compounds used are the fluoboric acid salts of diazotized p-aminodiethylaniline, p-amino-N.N-diethyl-metatoluidine or p-amino-diphenylamine; the coupling components 2.3 - dihydroxynaphthalene, 1- amino - 8 -hydroxy- 3.6-dihydroxynapbthalene, or 6-hydroxy-naphthimidazole; and the metal salts silver nitrate or sulphamate: these substances being added in various specified proportions, together with citric acid, to form the necessary coating solutions. Specification 391,677 is referred to.
Patent GB-189609-A (GB)
Title: Improvements in thread-knotters
IPC: B65H69/04
Filed: 1921-10-17
Abstract: 189,609. Eanes, H. P. Oct. 17, 1921. Knot-tying devices.-A device for tying a spooler's knot comprises a fixed knotting-bill 11,. 11<1>, Fig. 1, a pivoted clamping and cutting element 15 co-operating with the knotting bill, a stripper-plate 2, Fig. 4, an oscillating tying hook 28, and thread-guiding fingers 24 - - 27. The tying-hook 28 is connected by links 30, 31, Fig. 1, to a bracket 29 fixed to the device, and is actuated by contact of a trigger 3 first with a tail piece 36 on the hook, and then with both the link 30 and the tail-piece. The path of the stripper-plate is controlled by a slot 13 and pins 14. Initially the mechanism is in the position shown in Fig. 3, and the threads are laid as in Fig. 4, A being the ends. By pulling the trigger 3 the tying-hook is actuated to draw the threads round the cutter element 15 to the position shown in Fig. 6. The trigger now reciprocates the stripper-plate, which in turn actuates the element 15 to clamp and cut the threads at B, Fig. 6, the neck of the tying-hook 28 then draws the threads to the right, Fig. 6, to tighten the knot as the stripper 2 pushes the thread-loop off the tying-bill 11, 11<1>.
Patent GB-1045377-A (GB)
Title: Modulated scanning system
IPC: H04N3/32
Filed: 1965-06-29
Abstract: 1,045,377. Television. A. B. DICK CO. June 29, 1965 [Oct. 13, 1964], No. 27556/65. Heading H4F. To reduce the distortion of the output video signals due to the decay time of the phosphor employed on the fluorescent screen 18 of the cathode-ray tube 14 which acts as a flying spot scanner scanning slide 12, the light output of the cathode-ray tube is modulated so that the scanning lines are chopped into a serious of short segments, and the output signals from photo-multiplier 24 are differentiated before being applied via a transmission line 36 to be reproduced by a display device 38 such as a facsimile printer or an oscilloscope. The modulation may be accomplished by modulating the electron beam by a train of pulses, Fig. 2 (not shown), so that the electron beam is alternately turned on and off, or by interposing a ruled screen or grating between the cathode-ray tube and the slide, Fig. 5 (not shown), which has opaque and transparent lines extending transversely to the scanning lines. The differentiating network shapes the signal from the photo-multiplier so that the trailing edge of each signal pulse rapidly decreases to zero if no further signal pulse follows immediately, and the combination of the modulation and the differentiation overcomes the tendency of the trailing edges of the output signal to be stretched. Amplifier 34 which amplifies the differentiated signal may incorporate a limiter or clipper for squaring the pulses in the output signal.
Patent GB-220511-A (GB)
Title: Improvements in cooking utensils
IPC: A47J36/36
Filed: 1923-11-02
Abstract: 220,511. Eclipse Novelties, Ltd., and Flinton, E. Nov. 2, 1923. Jackets.-A saucepan or like cooking- vessel of hemispherical or like shape is provided with a jacket 1, flanged, beaded or otherwise formed at the top 3 to support the vessel, and formed with a broad internally-projecting flange 2 at the bottom. The jacket is made by spinning a sheet of metal to the form of a cap and cutting out therefrom the major part of the bottom. It is provided with a handle 6.
Patent GB-728850-A (GB)
Title: Improvements in or relating to sewing machines
IPC: D05B75/06
Filed: 1952-11-04
Abstract: 728,850. Sewing-machines. FOX, S. G. Dec. 11, 1953 [Nov. 4, 1952], No. 27695/52. Class 112. A sewing-machine A, adapted to be lowered into a cabinet D when not in use, has a presser foot L which is raised when required by means of a knee-operated lever G which is connected to a lever K associated with the presser foot by means of a flexible cable J disposed in a flexible outer casing O having its ends suitably anchored and of sufficient length to permit of the sewing machine being raised into its working position or lowered therefrom. As shown, a second lever M and linkage N is interposed between the cable and the lever K.