baber/WOPTO huggingface dataset:
Patent GB-1556425-A (GB)
Title: Grinding mill apparatus
IPC: B02C18/08
Filed: 1976-07-26
Abstract: The grinding machine is intended for solids, such as roasted and rough-crushed cacao beans, which form a pasty or viscous substance during comminution owing to the release of an included lipoid component. The machine contains fly cutters (5) which are located inside a grinding chamber bounded by a screening cylinder (17), rotate at a speed of the order of 3000 rpm and are fixedly mounted on a hub (8, 9) which is installed on the drive motor shaft (2). The screening cylinder comprises a perforated inside screen (17') which corresponds to the grain size of the ground material and an outer screen (17'') which is provided with perforations approximately 10 mm in diameter, the two screens being rigidly connected to one another in the region of end flanges. The upper part (18, 23) of the machine casing is telescopically mounted in the lower part (24 etc.) and is held on the latter by means of clamp bolts (25). The upper part can therefore be released from the lower part in a few actions and the inside of the machine is easily accessible. To cool the material to be ground, the floor has two layers and is designed so as to contain a liquid circulation chamber (13), and the lid in the upper part of the machine includes gas inlet nozzles (29) which are intended to encourage agitation of the material to be ground as well as providing additional cooling of the latter. <IMAGE>
Patent GB-864010-A (GB)
Title: Purification of alumina
IPC: C08B30/04
Filed: 1957-10-04
Abstract: Soda-containing alumina is calcined with a fluoride to form a soluble salt, and then leached with plain water or a dilute solution of an acid or an alkali.  The fluoride is preferably aluminium fluoride but hydrogen fluoride or ammonium fluoride may be employed, normally in amounts from 0.5 to 3% by weight of the alumina.  The calcination may be effected at 1000 to 1400 DEG C. in rotary furnaces or in fluidized beds.  Alternatively the process described in Specification 864,009 where the fluoride is fed into the hot end of a calcining kiln in the suspension in the air supplied to the burner, may be employed.  The leaching is preferably effected in the hot and, apart from plain water, hydrochloric acid or sodium or ammonium hydroxide may be employed in concentrations between 0.01 and 2%.  After acid or alkali leaching a plain water wash is preferred and the so treated alumina may be dried at a temperature of about 200 DEG C.  The soda content of the product is generally below 0.2%.  The calcining in the presence of the fluoride converts the alumina to the alpha form which recrystallises as flat hexagonal plates.
Patent GB-1396129-A (GB)
Title: Electrical switches
IPC: H01H1/24
Filed: 1972-07-04
Abstract: 1396129 Retractive switches; switch contacts FLIGHT REFUELLING Ltd 4 July 1973 [4 July 1972] 31197/72 Heading H1N A switch has a coil spring 2 under compression and a coil spring 3 (coaxial with spring 2) engaging a plunger 8 which, when depressed, moves a portion 10 of spring 3 into contact with spring 2 to establish an electrical connection between springs 2 and 3 which form the contacts of the switch. Portion 10 engages coil spring 2 at two diametrically opposite points. Spring 2 is kept under compression by flange 6 on insulating central pillar 7 and the point in the stroke of plunger 8 at which spring 3 engages spring 2 is determined by the position of flange 6.
Patent GB-700600-A (GB)
Title: An electrical cable with connector means
IPC: H01T13/05
Filed: 1952-12-10
Abstract: 700,600. Cables ; two-part couplings. GENERAL MOTORS CORPORATION. Dec. 10, 1952 [Dec. 13, 1951], No. 31228/52. Classes 36 and 38 (1) A cable comprises a conductor 2 having an insulating sheath 4 within a non-waterproof, flexible metallic conduit 20 and a waterproof coating 40, and is provided with a connecting device which includes a metal ferrule 24 fitted over the end of the cable and then inwardly deformed to form a watertight joint with the coating 40. The conduit 20 may be spaced from the insulation 4, and formed of a spiral strip having interlocking edges. This may be surrounded by a screen 22 of braided copper wire over which the coating 40 is extruded. The ferrule 24 is positioned over the end of coating 40 and connected to screen 22 by solder 26. The end of the conductor 2 is connected to a resilient terminal 6 through a metal sleeve 12 enclosed within a ceramic sleeve 8. A flexible insulating sleeve 28 is fitted between the insulation 4 and conduit 20 and is provided with a flange 30. When the cable is positioned, for example on a sparking plug, an internally-threaded nut 46 engages flange 44 on ferrule 24 and is screwed on to the sparking plug, compressing spring 36 and thus holding terminal 6 against its co-operating terminal and flange 30 against a co-operating part to form a watertight seal.
Patent GB-1192049-A (GB)
Title: Improvements in Safety Apparatus for Cranes and the like
Inventor: AITKEN ROBERT LOUDON
IPC: B66C23/90
Filed: 1967-07-06
Abstract: 1,192,049. Safe load indicators for cranes. B. & A. ENG. CO. Ltd. 5 July, 1968 [6 July, 1967], No. 31273/67. Heading B8B. In a crane in which the jib 1, Fig. 1, is luffed by a hydraulic ram the force applied to a safe load indicator 15 through linkages 16-22 is the component of force applied at right angles to the jib by the ram. The ram is connected to the jib by a crank-shaft 23, Fig. 4, and an eccentric journal 25 in such a way that the centres 27, 28 of the shaft and journal always lie substantially on a common radius with respect to the jib pivot. Extensions of the telescopic jib are fed to a crane radius compensating device 7, Fig. 1, constructed according to Specification 980,132, by a cable, a spring drum 3 and links 4-6. The jib angle is fed to the device 7 by links 8, 9 and the output from the device 7 is connected to the safe load indicator 15, which is constructed as described in Specification 723,070, by links 11, 12, 14. In the indicator 15 the jib length and angle signals are combined with the jib load signal and used to operate an alarm.
Patent GB-554592-A (GB)
Title: Improvements in or relating to the preparation of alumina from clay or other aluminium-containing materials
IPC: C01F7/765
Filed: 1939-12-01
Abstract: 554,592. Aluminium compounds. ENGLISH CLAYS, LOVERING, POCHIN & CO., Ltd., DAVIES, R. J., DERING, H. O., and PARKER, T. W. Dec. 1, 1939, No. 31286. [Class 1 (iii)] In the process of preparing alumina from clay &c. by sintering the clay with ammonium sulphate dissolving the aluminium sulphate or alum so formed and precipitating with ammonia direct flow of air through the sintering furnace is avoided, the ammonia evolved being allowed to escape under its own pressure. Specification 554,591 is referred to. Reference has been directed by the Comptroller 'to Specification 15509/06, [Class 1], and German Specification 354,328.
Patent GB-796987-A (GB)
Title: Improvements in or relating to high vacuum diffusion pumps
IPC: F04F9/00
Filed: 1956-10-15
Abstract: 796,987. High vacuum diffusion pumps. HERAEUS, GES., W. C. Oct. 15, 1956 [Nov. 12, 1955], No. 31349/56. Class 71. Between the boiler 13 and a working nozzle 14 of a high vacuum diffusion pump is located a mechanical means, e.g., a Roots blower 20 for accelerating and compressing the vapours supplied to the nozzle 14 up the chimney 23, 17. Boiling of the liquid, e.g., oil is effected by heating tubes 21 and the vapour also ascends to nozzles 15, 16. Reduction of boiling point due to the suction effect of the blower 20 is compensated for by cooling tubes 22.
Patent GB-319529-A (GB)
Title: Improvements in and relating to the production of edible paste from the liver of cod fish and the like
IPC: A23L17/00
Filed: 1928-10-29
Abstract: 319,529. Egge, H. J. Oct. 29, 1928. Fish preparations. - For producing an edible paste from the liver of cod fish &c., the liver is first heated with one or more diluted weak or strong acids, for example with vinegar, and is then disintegrated to a fine paste and cooked under non-oxidizing conditions. Ovalbumen, casein and/or milk powder may be mixed with the paste, and spices may be added, and the mass is put into tins which are sealed and subjected to cooking temperature preferably under pressure. After the removal of the oxidized oils and before disintegration of the liver further oxidation of oil may be prevented by a gentle heating of the liver to 70‹ C. or more.
Patent GB-799138-A (GB)
Title: Improvements relating to arrangements for loading loose bulk material in vehicles
IPC: B60P1/00
Filed: 1956-10-15
Abstract: 799,138. Packing material into vehicle bodies. LYNES, G. H. Oct. 15, 1956, No. 31373/56. Class 78 (4). A flexible sheet 4 secured at one end 5 to the floor of a vehicle body is attached at its other end 6 to means on the vehicle for pulling it to compact material 11. In the construction illustrated a rod 6 at one end of the sheet is connected to a pair of wires 7 passing over pulleys 8 to a winch 9. In an alternative construction the end 5 of the sheet 4 is secured to a scraper device which can be moved along the floor of the vehicle by a winch or by hydraulic rams. The vehicle may be loaded over a tail gate 3 as illustrated or through a panel, and the sheet 4 may be laid flat on the floor of the vehicle to facilitate loading. The rod 6 may run in guides in the vehicle walls. The body of the vehicle may tip, the sheet 4 hanging from its rear end. The sheet 4 may be of rubber, balata, or metal.
Patent GB-172020-A (GB)
Title: Improvements in item and total printing arrangements for adding machines
IPC: G06C11/00
Filed: 1920-06-24
Abstract: 172,020. Vidal, A. E., (Representative of Rauchwetter, F.). Dec. 5, 1916, [Convention date]. Adding-apparatus.- In a machine provided with item-printing means which may be controlled alternatively by the keys or by the totalizer so as to print items or totals, two stops are employed for controlling the differential movements of the type-carriers, one positioned by the item keys and the other rendered operative by the total-printing key, and provision is made whereby only one stop can be effective at a time. The machine may be arranged for computing without printing by depression of a key so as to free the fulcrum of a lever which normally transmits movement from the operating shaft to the printing- shaft. Printing totals and items. Each type-bar 1 is positioned for itemprinting by connection through lever 12 with a bell-crank lever 8 provided with a stepped plate 9 adapted when the crank-arm 10 on the printing-shaft 77 is lowered, to engage a stop 6 positioned differentially by the item keys 2. The stop 6 is carried by a lever 5 pivoted at 4 in such a way that the lever can be shifted sideways to place the stop out of the plane of movement of the stepped plate when the typebars are to be positioned according to the totalizer reading. When the total-printing key 14 is depressed, it shifts through a link 15, a pivoted arm 17 so as to bring its upper end beneath a pin 19 on a bell-crank lever 20 and a step 22 below a pin 23 serving as a fulcrum for a sector 24. When the operating shaft 32<1> is rotated therefore, a sliding bar 33<1> through a lever 39 raises the arm 17 and so throws a projection 28 on a pivoted comb 25 into the way of a pin 27 on the totalizer wheel 3. At the same time, the step 22 throws out the stop 6 by side-stepping the lever 5 and raises the sector 24 into engagement with the totalizer pinion. The descent of the crank arm 10 then allows the type-bar to assume the setting of the totalizer wheel through the link 31 and bell-crank lever 8. The printing-hammer mechanism employed may be that described in Specification 146,285. Adjusting for computing only.-The driving- connections between the main shaft 32<1> and the printing-shaft 77 include a lever 35 pivoted at 34 upon a pendant pivoted arm 42. The fulcrum 34 is normally rendered substantially stationary by a hook 46 pivoted at 44 and connected by link 47 and bell-crank lever 48 with a throw-out key 49. By depressing the latter, the hook is lowered to free the arm 42, whereupon the fulcrum 34 can float and consequently the lever 35 no longer functions.
Patent GB-347154-A (GB)
Title: Improvements in and relating to amplifying arrangements
IPC: H04B15/00
Filed: 1929-10-16
Abstract: 347,154. Valve amplifying circuits. INTERNATIONAL GENERAL ELECTRIC CO., Inc., 120, Broadway, New York, U.S.A.-(Assignees of Allgemeine Elektricitõts Ges. ; 2, Friedrich Karl-Ufer, Berlin.) Oct. 16, 1929, No. 31442. Convention date, Oct. 16, 1928. Void [Published under Sect. 91 of the Acts]. [Class 40 (v).] In order to eliminate commutator-ripple and similar noise in a valve amplifier drawing platevoltage and grid-bias from direct-current mains, the direct-current supply to the plate passes through a choke g, and a variable tapping k is taken through a condenser h to the potentiometer resistance e across the mains. The value r<2> of the resistance e tapped off at the point k is " mu " times the value of the grid-biasing resistance r<1>, so that any ripple or fluctuating disturbance in the mains is applied to the plate through the condenser h, and simultaneously to the grid, in such a way that its effect is eliminated in the output circuit of the amplifier.
Patent GB-1392722-A (GB)
Title: Aluminium alloys
IPC: C22C21/10
Filed: 1971-07-05
Abstract: 1392722 Armour plating ALCAN RESEARCH & DEVELOPMENT Ltd 4 July 1972 [5 July 1971] 31492/71 Heading F3X [Also in Division C7] An aluminium alloy used for the production of armour plate or in the field of cryogenics comprises: Ti, Fe, Si being held below the maximum impurity levels of 0À1%, 0À5% and 0À3% respectively; other impurities each being held below 0À05% and below a total of 0À15%; Al being the balance of the alloy. The alloy in the form of armour plate for an armoured fighting vehicle comprises plate of not less than 25 mm. which has been subjected to solution treatment at about 450‹ C. for approximately 30 minutes, quenched in cold water and solution treated for various times at temperatures ranging from room temperature to 160‹ C.
Patent GB-972542-A (GB)
Title: Improvements in or relating to articulated bracelets, watch straps and the like
Inventor: WALKER KENNETH CECIL
IPC: A44C5/00
Filed: 1962-08-17
Abstract: 972,542. Bracelets. DAVID SHACKMAN & SONS Ltd. Aug. 7, 1963 [Aug. 17, 1962], No. 31633/62. Heading A3H. A method of making a bracelet comprises making a milanese strip of material, placing a strip of bars attached to an adhesive backing on the milanese base, turning over the ends of the bars or base to secure the bars and base together and then removing the adhesive backing. A number of parallel intercoiled helical wires are subjected to pressure to provide basic material 1 which is blanked to shape. Parallel bars 2 are secured to an adhesive backing and blanked to shape. The bars with the backing are placed on the material 1 and the two edges of the material or the ends of the bars are turned over and then redoubled over. The adhesive backing is then burnt out. The bars may be variously shaped and ornamented.
Patent GB-955831-A (GB)
Title: Improvements in or relating to image converter tubes
IPC: H01J29/45
Filed: 1960-09-14
Abstract: 955,831. Cathode-ray tubes. PHILIPS ELECTRICAL INDUSTRIES Ltd. Sept. 14, 1960 [Sept. 17, 1950], No. 31672/60. Heading H1D. In an image converter tube comprising an electron gun, a target, and an electron-collecting anode therebetween, the target comprises a first grid electrode 25 on the gun side thereof, a plurality of combinations each arranged over an aperture in grid 25 and together forming a continuous layer, and a second electrode 26 arranged on the far side of the target. Each combination comprises a photo-conductive, or bombardment-induced-conductive, part, whose conductivity is controlled by the image to be converted, and a resistive part whose conductivity is not so controlled, the two parts of each combination forming an electrical series-connected circuit between the first and second electrodes. In operation, one of the electrodes 25, 26 is maintained at a low positive potential, relative to the gun cathode, and the other at a negative potential, and a potential image is formed on the gun side of the target in the apertures of grid 25 by electromagnetic radiation, or by particle bombardment from a photocathode, or a modulated electron beam, and scanned, signals being derived either from beam electrons collected by first electrode 25 or from electrons returned to the anode. As shown in Fig. 2, the target comprises a conductive glass foil 20, of 10<SP>9</SP> to 10<SP>12</SP> ohm cm. resistivity, supporting, but insulated from, the first grid electrode 25, and photo-conductive elements 23 contacting, and in the apertures of, the grid 25, the second electrode 26 comprising a transparent conductive coating. Alternatively, the target may comprise a conductive glass foil and a continuous photo-conductive layer between two electrodes each comprising spaced parallel conductors, the conductors of one electrode lying between those of the other. In Fig. 4, two grid electrodes 45, 46 are disposed on opposite sides of a photo-conductive layer 42, parts of which are shielded from incident radiation by opaque insulating strips 47, so that the conductivity of these parts is not controlled by the image to be converted, whereas the remaining parts are irradiated through transparent electrode 46. Owing to the high capacity between the first and second target electrodes, it is preferred to derive output signals from the anode, and for these signals to have a low signal-to-noise ratio, either the photo-conductive material should be adjacent the second electrode, or a third electrode 50, Fig. 5, is supported on, but insulated from, electrode 15, electrodes 50, 16 being at a low positive potential and electrode 15 at a negative potential. Lead monoxide, cadmium sulphide or antimony trisulphide may be used as photoconductive materials, and zinc sulphide, magnesium oxide or silicon carbide as B.I.C. materials. On the gun side the target combinations may be coated with a protective magnesium oxide layer.
Patent GB-1474999-A (GB)
Title: Control circuits for signal transmission
IPC: H01L27/088
Filed: 1974-07-17
Abstract: 1474999 Volume control SONY CORP 17 July 1974 [23 July 1973] 31691/74 Heading H4R [Also in Division H1] A volume control circuit comprises a plurality of IGFETs, SRG1-SRGn, having sensitive gates whose ends are A.C. coupled to the source and drain respectively, and different transconductances, the signal to be controlled being connected across the sources and drains which are connected in parallel, and a control signal V G  being connected across the gates and sources such that all the gate-source voltages are different. The different trans-conductances may be achieved by varying the widths of the channel regions. The FETs are formed in an integrated circuit in a silicon substrate which is form-doped, has silicon dioxide insulation, polycrystalline silicon gate electrodes and biasing resistors 30 1 -30 n  and 31 1 -31 n , and its manufacture using conventional integrated circuit techniques is described. The control circuit acts as a linear resistor and provides a gain control of 40 db.
Patent GB-490840-A (GB)
Title: Improvements in automatic change speed gear clutches
IPC: F16H61/02
Filed: 1936-11-19
Abstract: 490,840. Variable - speed gearing. LA CAILLERIE, U. T. DE. Nov. 19, 1936, Nos. 31696 and 31697. Void. Convention dates, Nov. 20,.1935 and Oct. 20, 1936. [Class 80 (ii)] An automatic change-speed epicyclic gear comprises planet pinions 3 which are carried by a driving plate 1 and which mesh with a sun gear 4 fast on the driven shaft 5 and with a toothed annulus 7 secured to a spider 9, the latter having a hub 8 journalled on the shaft 5 and pivotally carrying spring- retracted friction shoes 11 which are adapted, under the action of centrifugal force, to engage a drum 6 which is of comparatively-large diameter and which is secured to the shaft 5, or, in an alternative arrangement, to the plate 1.
Patent GB-341548-A (GB)
Title: Improvements relating to automatic fire alarms
IPC: G08B17/04
Filed: 1929-10-19
Abstract: 341,548. Fire alarms or thermal switches. NICHOLSON, J., 5, Oakdale Terrace, Chester-le-Street, Durham. Oct. 19, 1929, No. 31826. [Class 47 (i).] A fire-alarm device or thermal switch comprises a casing a having a cover band an insulating base c. The cover supports a capsule n. The base carries a fork d in which is pivoted a lever e having at its free end a contact f. Midway of its length, the lever is pivoted to a block j which bears on the capsule and is held downwardly by a spring h. The contact f co-operates with a contact g on a lever p which is pivoted in a fork q on the base and is held with its contact end raised by a spring p<1>. The position of the contact g is adjustable by a screw r having a head s a portion of which is serrated and extends through the side of the casing for operation by hand or by a pinion, not shown. The leads of the alarm circuit are connected to terminals t and u which are respectively connected by plates v and w to the forks and q. For testing purposes, a spring button x in the side of the casing has a head coacting with a spring contact z connected to the terminal t. The capsule may be replaced by a bimetallic strip or the like. The casing may be liquid or gas-proof, or gauze covers may be provided to prevent sparking.
Patent GB-192539-A (GB)
Title: Improvements in windows and window fittings for use on motor vehicles and the like
IPC: B60J1/00
Filed: 1921-11-29
Abstract: 192,539. Calso Hood Co., Ltd., and Buch, M. A. Nov. 29, 1921. Windscreens.-A side window or screen A for a motor or like vehicle is provided at A<3> to an upper corner of a recess B<5> formed in the door B<2> or side B and has hinged to it a second screen D adapted to lie either transversely of the vehicle in the raised position, as shown in full lines, or to lie along the side of the vehicle as indicated in dotted lines to form a closed-in body in combination with the hood, the two screens in their folded position being swung down out of sight into the recess B<5>. A third screen, also capable of folding on the screen A, may be hinged to the latter about the vertical edge A<8>. In order to assist in maintaining the screen A in its raised or lowered positions a spring C is attached to a pin C<2> mounted on a portion A<5> of the screen frame and movable in a slot A<6> in the wall of recess B<5>, the spring in the extreme positions of the screen acting at opposite sides of the pivot A<3>.
Patent GB-258453-A (GB)
Title: Improvements relating to buildings
IPC: E04B2/70
Filed: 1925-12-18
Abstract: 258,453. Cowiesons, Ltd., Cowieson, F. D., and Douglas, J. W. Dec. 18, 1925. Drawings to Specification. Walls.-In a wall formed of weather boarding secured to a wooden framing, the dado or base is made of metallic sheeting, such as steel.