baber/WOPTO huggingface dataset:
Patent GB-464246-A (GB)
Title: Improvements in or relating to centrifugal separators
IPC: B04B7/10
Filed: 1936-07-10
Abstract: 464,246. Centrifugal machines. TEATINI, D. July 10, 1936, Nos. 19218 and 19219. Convention dates, July 15, 1935, and April 28, 1936. [Class 23] A centrifugal separator has a rotary drum with a perforated wall, and a number of moulding units detachably mounted in front of the wall to form blocks of the solids deposited from the mixture supplied ; a treating liquid is forced through the solids in the moulds by centrifugal action before the blocks are removed. The drum A, Figs. 2, 3 has a sieve B mounted on a perforated corrugated plate C and has an external flange a upon which is fixed a crown D for supporting the moulding units F. Each unit has external flanges g, to fill the spaces between units, and internal partition plates f<1>, f<2>, f<3>, of which the alternate partitions f<3> have ribs k thereby forming a number of cells. The upper portion of the unit comprises a thickened part h which terminates in a hook to engage a pin e<1> in the cap E. This cap serves as a handle and a lug d on the crown D serves to ensure correct placing. In a modification the side plates of the unit, with the cap E and a base, form a frame in which the partition plates are clamped ; the sides of the frame are secured to the base by pivot pins and to the cap by spring catches. The ribs k on the partition plates may be arranged on successive plates to alternate with each other, or each plate may be provided with ribs on one or both sides. The units may be secured in position by means of a plate attached to the flange a of the drum by winged screws. In a further modification the partition plates have circular top ends U, Fig. 22, which fit in a cylindrical recess in the head E ; the top ends and the recess may also be of rectangular form. Cakes having grooves r, Fig. 34, of the desired depth may be formed by arranging a unit with plates having transverse ribs k<1>, Fig. 32, to determine the height of the cakes, and other plates with longitudinal ribs k<2> to form the grooves r. When the cells are filled with solids, for instance sugar, the supply is stopped and a washing liquid supplied. After washing, a solution adapted to bind the deposit is supplied ; for instance where sugar is deposited a supersaturated solution of sugar is supplied. Specifications 1666/97, 4960/00, and 14096/13, [all in Class 23], are referred to.
Patent GB-481481-A (GB)
Title: Improvements in and relating to the production of neutral and bleached soaps
IPC: C11D9/08
Filed: 1937-07-12
Abstract: A neutral, bleached soap is produced by adding to the liquid or solid soap boric acid and a polybasic hydroxy aliphatic acid, such as citric or tartaric acid.
Patent GB-983299-A (GB)
Title: Method of and apparatus for the manufacture of pipes by centrifugal casting
IPC: B22D13/10
Filed: 1961-05-29
Abstract: 983,299. Centrifugal casting - machines. BUDERUS'SCHE EISENWERKE. May 29, 1961 [May 31, 1960], No. 19324/61. Heading B3F. Two cast-iron socket pipes are cast in a horizontal centrifugal mould 1 having an annular constriction 6 which divides the interior of the mould into two sections of different diameters. The pouring tube 5, which may have a conical bore, clamps the socket core 4 in position, being threadedly adjustable by a lever 11. The constriction 6 may be integral with the mould or secured thereto by screws. Fig. 4.
Patent GB-531483-A (GB)
Title: Improvements in or relating to the separation of calcium carbonate by froth flotation
IPC: C01F11/18
Filed: 1939-07-03
Abstract: 531,483. Concentrating ores. JENNINGS, H. W. K. (Smidth & Co. Aktieselskab, F. L-). July 3, 1939, No. 19354. [Class 82 (ii)] In concentrating calcium carbonate minerals by froth flotation in which there are present a collecting agent and a resinate frothing agent, there is added to the pulp, before or during flotation, or in stages, a mineral acid, e.g. sulphuric, hydrochloric, nitric, or phosphoric, or a soluble salt of a metal which forms a resinate of relatively low solubility, e.g. a salt of calcium, barium, or magnesium, such as calcium sulphate, chloried, or bicarbonate, and the pulp has a pH value of 6-9. The process may be applied to relatively coarse pulps of coarse-grained ores, or to pulps from which the bulk of the particles below 10 microns in size have been removed. The collecting and frothing agent may be saponified tall oil, and this may be added to the pulp while it is thick, the pulp being afterwards diluted and the acid or salt added during or after dilution. The dilution water may contain part or all of the acid or salt, and natural hard water may be used to introduce at least part of the salt. Specification 478,275 is referred to.
Patent GB-299090-A (GB)
Title: Improvements in or relating to heat measuring devices
IPC: G01K17/16
Filed: 1927-07-21
Abstract: 299,090. Kent, Ltd., G., and Clifford, S. July 21, 1927. Heat and temperature coefficients, apparatus for determining .-Apparatus for measuring the quantity of heat in a fluid flow system, e.g. a hot water central heating system comprises a venturi tube &c. inserted in the fluid flow and controlling a variable resistance, a, device responsive to the temperature of the fluid controlling another variable resistance and an electrical device for continuously indicating &c. a product which is a function of the product of the two variable resistances. For measuring the total heat of the fluid a single thermometric device is employed, and for measuring the heat consumption between two points two thermometric devices are employed, one at each of these points, the indicating &c. means being operated in accordance with the difference between the resistances controlled by the thermometric devices. The venturi &c. tube 1 actuates a contact arm 2, Fig. 2, moving over a resistance 3 connected as a potentiometer across a suitable source of power. The thermometric device T comprises a bulb 4, Fig. 4, containing expansible fluid and communicating with a Bourdon tube 5 actuating a contact arm 6 moving over a resistance 7. The variable voltage outputs of the two resistances are transmitted to the coils of an integrator I which is a two-coil instrument similar to a watt-hour meter. The. movement of the integrator is thus a function of the product of the two variable resistances. When heat consumption is to be measured, thermometers subjected to the inflow and outflow temperatures control two variable resistances which are differentially connected to one coil of the integrator. The integrator &c. may be situated at any desired distance from the flow and temperature operated devices.
Patent GB-319845-A (GB)
Title: Improvements in or relating to spectacle and like frames
IPC: G02C1/08
Filed: 1928-07-04
Abstract: 319,845. Callender, L. J. July 4, 1928. Spectacles. - In spectacles, the joints of which are arranged to permit the removal of the lens without disturbing the temple wire and vice versa, the split lens rim 10 is provided with lugs 11, 12, each provided with a pair of holes, one pair 13, 14 serving for the reception of a screw 15 for holding the lens in place, and the other pair for engagement with a screw 21 for the temple wire 22. The wire end 24 is housed partially in each of the lugs 11, 12 as shown and has a cap 26 to cover the joint. The head of the temple wire screw 21 passes freely through the hole 27 in the lug 11 and screws into the lug 12, the temple wire pivoting freely upon it.
Patent GB-1260481-A (GB)
Title: Improvements relating to nipple valves
Inventor: SPENCER THOMAS HENRY NEWNHAM
IPC: A01K39/02
Filed: 1968-04-25
Abstract: 1,260,481. Animal drinking valve. T. H. N. SPENCER. 16 April, 1969 [25 April, 1968], No. 19561/68. Heading A1M. [Also in Division B8] A "peck" type nipple valve for dispensing water to birds is designed to operate with relative high water heads, and, at the same time prevent gushing of water when the valve is operated. The pin 19 is connected to valve member 20 on the lower surface of which is on "O" ring 22. The pin moves in an outlet pasage connected to the valve body 11. Valve body 11 and inlet spigot 13 contain a valve chamber 14. An insert 23 with fine bore 24 is snap fitted into the spigot. When the valve is closed (Fig. 1, not shown), the "O" ring seals against shoulder 18. When a bird raises pin 19 the upper surface of the valve member 20 restricts flow of water into chamber 14. The water in chamber 14 empties through the valve outlet and forms a series of droplets. The valve may be attached to a reservoir 29 connected to the water supply (Fig. 3, not shown), or be connected directly to a water supply pipe.
Patent GB-258563-A (GB)
Title: Manufacture of dyestuffs
IPC: C09B19/02
Filed: 1926-08-07
Abstract: 258,563. Soc. of Chemical Industry in Basle. Sept. 16, 1925, [Convention date]. Addition to 237,375. Sulphuretted dyes.-The process of the parent Specification, according to which 2 : 5-diarylidobenzoquinones are treated with sulphur halide, is modified by using instead of the latter a mixture of a sulphur dihalide and halogen. The reaction may be effected in presence of a solvent or diluent, with or without an acid-binding or condensing agent, and at ordinary or high temperature. The 2 : 5-diarylidoquinones may contain further substituents in the quinone nucleus or at the nitrogen atoms and may also contain substituents in the arylido-residues such as halogen, alkyl-, alkyloxy-, phenyloxy-, nitro-, amino-, alkylamino-, aralkylamino-, arylamino-, hydroxyl-, or carboxyl-groups. As diluents, which may also act as condensing agents, are specified nitrobenzene, chlorbenzene, carbon tetrachloride, chlorethane, sulphuric acid, formic acid, acetic acid, and acetic anhydride; zinc chloride and iodine are mentioned as condensing agents. The following diarylidobenzoquinones are specified as parent materials, the sulphurizing being effected with sulphur dichloride mixed with varying proportions of chlorine at temperatures of from -15‹ C. to the boiling point of nitrobenzene :-2 : 5-dianilidobenzoquinone, 2:5-dianilido-6-methylbenzoquinone, 2 : 5-dianilido-6-chlorbenzoquinone, and 2 : 5-di-a-or #-naphthylaminobenzoquinone. The products dye wool from the hydrosulphite vat in yellow, orange, violet, brown, blue, grey, and black &c. shades.
Patent GB-483636-A (GB)
Title: Process for the manufacturing of plaster of paris bandages or other bindings
IPC: C04B11/02
Filed: 1936-07-15
Abstract: In the manufacture of plaster of Paris bandages, gypsum in an unburned state is applied to a foundation sheet of fabric or similar material, and thereafter burned.  The gypsum is applied as by means of an adhesives or as an aqueous paste to which adhesives such as gum arabic, starch, dextrin tragacanth, water-soluble cellulose ether or casein may have been added.  Catalysts, for example common salt, to reduce the necessary burning temperature, plasticizers and fillers may be added.  The burning temperature may be controlled to suit the desired hardness and a temperature of 116 DEG  C. is referred to. The burning may be effected under reduced pressure.  The foundation material may be treated against heat effects. The Specification as open to inspection under Sect. 91 comprises also the use, in the burning operation of a long tunnel oven having zones of different temperatures, the temperature at the entrance being low, so that drying occurs. This subject-matter does not appear in the Specification as accepted. Reference has been directed by the Comptroller to U.S.A. Specification 2,009,597.
Patent GB-871568-A (GB)
Title: Rotary electric switch
IPC: H01H9/34
Filed: 1958-06-19
Abstract: 871,568. Snap-action switches. MASON ELECTRIC CORPORATION. June 19, 1958 [Jan. 23, 1958], No. 19617/58. Class 38 (5). The rotary switch of Specification 837,433 is modified by arranging that the springs interconnect the rotor, the rotary actuator and each contact carrier. The latter, 110, is slidably mounted in slots 130 in the rotor 112 and is acted on by the ends 146, 148 of two torsion springs 118 arranged on a rod 138 on the rotor, the other ends 150, 152 of the springs engaging apertures in the actuator 114. Each rod 138 also carries a spring 116 whose ends 160, 162, 164, 166 also engage apertures in the actuator. If the latter is rotated clockwise from the Fig. 7 position to the Fig. 8 position, the aperture edges 168, 180 bear on ends 150, 162, 166 to stress one spring 118 and the springs 116, the other ends of these springs bearing against rods 140 on the rotor. Eventually, the aperture edges 172, 176 are moved far enough to engage spring ends 152, 160, 164. The contact roller 94 is thus forced out of the recess 98 by the initial rotation of the rotor, and the latter is then snapped round until the roller comes opposite the next recess. The rotor carries arc barriers 184 spaced not more than 0.015 inch from the surface of the contact path 92, and when the roller is in a recess the outer surface of its carrier is spaced a similar distance therefrom. Specifications 837,433, 837,435 and 841,541 are referred to.
Patent GB-941758-A (GB)
Title: Automatically actuated fluid flow shut-off valve
IPC: A01J5/04
Filed: 1962-05-22
Abstract: 941,758. Valves. SEPARATOR A.B. May 22, 1962 [May 26, 1961], No. 19638/62. Heading F2V. A valve comprises a casing 1, a suction duct 2 through the casing, a channel 6 crossing the suction duct, a piston 7 movable between two end positions in the channel to open and close the duct, means 8 biasing the piston towards one of its end positions and a device to lock the piston in its other end position against the action of the biasing means, the device consisting of a flexible membrane 10 covering an opening 13 in the wall of the channel and capable of being pressed by atmospheric pressure through the opening and against the piston. The membrane thus holds the piston in the open position but releases it for closure by the spring 8 if the suction in the duct 2 falls below a predetermined value. A locking bolt 20 for engagement with a groove 22 is also provided. The valve may be used in a milking machine.
Patent GB-1357341-A (GB)
Title: Window and door frames
IPC: E06B1/32
Filed: 1970-04-23
Abstract: 1357341 Door and window frames; glazing J HENDERSON 28 May 1971 [23 April 1970] 19638/70 Headings E1J and E1R A frame comprises a plastics shell with a channel in its outer surface containing a filler, e.g. of plaster, concrete or plastics. Glazing bars (16, 17 Fig. 1 not shown) are moulded from the same material as the shell and have reinforcements (18, 19). Panes 14 are secured by clamping strips 12 having dowels engaging in the frame or in the glazing bar and in a further clamping strip 12 with holes. Alternative glazing bars and clamping strips may be used (Figs. 12-14, not shown).
Patent GB-892116-A (GB)
Title: An arrangement for dispersing radiant energy
IPC: G02B5/04
Filed: 1958-06-20
Abstract: 892,116. Spectrometers; prisms. PERKINELMER CORPORATION. June 20, 1958 [June 24, 1957], No. 19762/58. Class 97(1). In order to ensure that the unwanted short wave length radiations in an infra-red beam do not fall upon a detector the incident beam A-A is directed on to a prism 10 whereby it is dispersed and falls upon a Littrow mirror 20 which redirects the beam back through the prism so that the wanted radiations in the beam travel in the direction B<SP>1</SP>-B<SP>1</SP> to the detector. One face of the prism 10 is serrated at 16 so that the unwanted radiations, which are dispersed to a greater extent than the wanted radiations either strike the facets and are then reflected out of the path B<SP>1</SP>-B<SP>1</SP> or are so directed by said facets after reflection by the Littrow mirror 20. The serrations may be covered with a coating capable of absorbing a large part of the shorter wave length radiations which are incident thereon.
Patent GB-1306674-A (GB)
Title: Method and device for correcting the aim of a weapon
IPC: F41G3/06
Filed: 1969-04-17
Abstract: 1306674 Electric correspondence control systems FRANCE ARMED FORCES MINISTER OF 17 April 1969 [25 April 1968 19773/69 Heading G1N A method of aiming a gun against a movable target consists in following the target with a telescope having cross-hairs displaceable relative to the centre of the telescope field and causing the gun to follow the telescope; measuring the target distance and producing from this measurement and the known speed of the projectile a first signal corresponding to the time necessary for the projectile to reach the target; measuring the angular speed of the gun to produce a second signal; multiplying the first signal by the second signal to obtain a correcting signal; and, using the correction signal to displace the cross-hairs of the telescope away from the centre of the telescope field in a direction opposite to the pursuing direction whereby the gun leads the telescope by an angle which compensates for the movement of the target during flight time of the projectile. As shown in Fig.2 a telescope 20 having movable cross-hairs 17 is trained on a moving target to cause similar movement of a gun turret 21 through a servo-system 22, 23. Members 24, 25 determine the target distance and hence the projectile flight time T, in known manner. A power take-off 7 driven by turret 21 drives the input rotary plate of a ball-type stepup multiplier mechanism 8, at a speed Ko # proportional to the turret speed #. The balls of mechanism 8 are displaced a distance corresponding to time T to produce a mechanical output Ko # T which is applied to the rotor of a synchrogenerator 9 having its stator windings connected to the stator windings of a synchro-motor 10. The generator 9 and motor 10 constitute a Selsyn system and function as divergence detectors. The rotor windings of generator 9 are connected to a reference voltage Uref and the rotor windings of motor 10 are connected to an amplifier 11 connected to a motor-generator reducing unit 12. The mechanical output of unit 12 is connected through a reducing gear 13 to the rotatable stator of motor 10 and through a screw and nut gearing 14 to the cross-hairs 17 and to the displaceable balls of a mechanical integrator 15 similar in construction to the multiplier mechanism 8. The input rotary plate of integrator 15 is driven at constant speed by a motor 16 and the output rotary plate is connected to the rotor of the rotor 10. In a modification the telescope has an additional pair of fixed cross-hairs which are caused to follow the target until the moment of firing when the movable cross-hairs are locked in position and the telescope is moved to align the movable cross-hairs with the target.
Patent GB-1025282-A (GB)
Title: Improvements in or relating to the treatment by electrolytic oxidation of cyanide wastes
IPC: C01C1/00
Filed: 1962-05-23
Abstract: Cyanide wastes are treated to provide a solid product free from cyanides and cyanates by electrolytically oxidizing an aqueous solution of the waste at an elevated temperature, removing liquid from the electrolytic cell and cooling it to crystallize out dissolved carbonate, separating the carbonate and returning the liquid to the cell, and adding cyanide waste to maintain largely constant the cell concentration of cyanide.  Preferably the cyanide concentration is at least 10 gm. HCN per litre and electrolysis is effected at a temperature of 60 to 95 DEG C. with an anode current density of 10 to 230 ASF using graphite or platinum metal coated titanium, while all the treatment stages are continuously operated. Fig. 1 (not shown) relates to a simple apparatus in which the electrolytic cell containing NaCN wastes in solution has an immersed heating coil fed with hot water while the crystallizing unit has a cooling water jacket, stirrers being provided in both the cell and the crystallizer, and cyanide waste is added to the filtrate before this is pumped back to the cell. In the arrangement of Fig. 2, the gases evolved from the thermally insulated cell 13 are fed through a condenser 21 and a scrubber 23 fed with sodium carbonate solution and escape of hydrogen cyanide is thereby prevented, being either returned directly to the cell in solution or with the scrubbing solution via sump 27.  Sodium carbonate crystals from the crystallizer 17 are fed to a vacuum-assisted filter 19 from which the filtrate and crystal washings are fed to the sump 27 the level in which is kept constant by adding water via a float-controlled valve 29a. Hydrogen leaving the scrubber 23 is burnt at 26 to pre-heat the liquid to be returned to the cell along pipe 15 from the sump, sodium cyanide solution being added to it along pipe 32.  In the electrolysis, sodium oxalate and urea are also formed in minor amounts, and the sodium carbonate crystals contain small amounts of sodium oxalate and cyanides (0.05% HCN). <PICT:1025282/C6-C7/1>
Patent GB-411697-A (GB)
Title: Improvements in or relating to embossing presses
IPC: B43M1/00
Filed: 1933-07-13
Abstract: 411,697. Embossing &c. presses; registering sheets &c. CLIFTON, E., JONES, CLIFTON, & CO., Ltd., W., 11, Plough Court, Fetter Lane, London, and RAMSDEN, C., 159, Oldchurch Road, Romford, Essex. July 13, 1933, No. 19861. [Classes 100 (i) and 100 (ii).] In an embossing or like press a guide of a curved or spiral form is so arranged in relation to the dies that a document inserted between the latter is caused to become rolled to a variable extent so that an impression can be made at any desired position on the document. In the example shown a spiral guide a of sheet metal has a lower horizontal portion b fixed substantially on a level with the upper surface of the fixed die member c, and a letter or document e passed between that die and the movable die d is guided by the member a so that it becomes rolled. The guide a may be double walled. In another example the guide may be constituted by the curved wall f of the press with a deflecting element fixed beneath the upper portion to force the paper into a spiral path. In a further example a transverse aperture is bored through the upper arm of the press and a slot is cut at a level with the dies and tangential to the aperture for entry of the leading edge of the document into the aperture. An inclined paper guide for facilitating entry of paper to the dies as described in Specification 412,025 may be employed.
Patent GB-889767-A (GB)
Title: An optical device for recording numbers on photographic film
Inventor: KETZ ALBERT GERBRAND
Filed: 1958-08-23
Abstract: 889,767. Electric selective signalling. LICHTDRUKPAPIERFABRIEK DE ATLAS N.V. Aug. 25, 1958 [June 23, 1958], No. 20015/58. Class 40 (1). [Also in Group XIX] In a machine which senses data from record cards and performs one or more calculations thereon, the data sensed and also the results of the calculation are recorded on a film which is then passed to a photocopying machine. The recording is effected in a device having a continuously rotating hollow cylinder with a transparent wall 1 carrying, in circumferential tracks the digits 0-9 or letters A-Z. The number of lines is determined e.g. by the number of denominations of the values to be used. In the form shown there are three tracks and a flash lamp is provided for each. The recording is made by flashing the lamps at the appropriate instant to project light through lenses 3a, 3b, 3c and throw an image of the desired character on to a ground glass screen 7. A camera is arranged to photograph the instantaneous images as they appear. The lamps are each flashed by energization through a wiper 6 rotating with the drum and engaging a series of contacts 5 one for each digit or letter position on the drum. The appropriate contact is energized in each row and as the drum rotates the lamp will flash when the associated wiper 6 engages the live contact and the corresponding image will fall on the screen 7. At high speeds to prevent the images being blurred an optical device consisting of a series of parabolic mirrors mounted on a drum is interposed between the lenses 3 and the screen 7.