baber/WOPTO huggingface dataset:
Patent GB-735195-A (GB)
Title: Method and apparatus for carrying out electrochemical processes
IPC: C25B9/19
Filed: 1952-12-02
Abstract: 735,195. Electrolytic cells with diaphragms. DEUTSCHE GOLDUND SILBER-SCHEIDEANSTALT VORM. ROESSLER. Dec. 2, 1952 [Dec. 22, 1951; Dec. 31, 1951], No. 30590/52. Class 41. In carrying out an electrochemical process with the use of a tubular diaphragm surrounding a linear electrode extending along its axis of symmetry, the volume in cc. of the diaphragmchamber excluding the volume of the electrode within the chamber bears to the area in square cm. of the diaphragm a ratio not greater than 1 : 4, preferably from 1 : 6 to 1 : 12. The construction may be used in the production of chlorates, per chlorates, perphosphates, the electrolytic oxidation of organic compounds, or cathodic processes, such as the production of hydrosulphites or hydrazobenzene, but is particularly described in the manufacture of high concentration persulphuric acid, the anode being surrounded by the diaphragm and a current density of at least 500 amps. per litre of anolyte present in the diaphragm chamber being employed. As shown in Fig. 1, a linear anode 1 extends along the axis of a tubular diaphragm 2, the cathode 3 of lead being provided with a lead spiral cooling jacket 4. The anode liquid is supplied by a constanthead supply pipe 6 to the lower opening of the diaphragm, the liquid being carried up by the evolved anode gases. Valve 15 regulates the inflow of anolyte while an overflow 17 regulates the level of the electrolyte. Hydrogen from the cathode collects under a polyvinyl chloride or porcelain bell 8 and passes away through outlet 12 while anolyte and anode gas pass to an outlet trough 10, the anolyte passing through an outlet pipe 11 and the gas through an outlet pipe 13. The current-distributing bar 14 connected to the anode 1 is hollow and a cooling liquid flows therethrough to cool the upper end of the anode. According to a modification (Fig. 2, not shown) a number of cells as shown in Fig. 1 are connected in series the anolyte removed from the top of the first anode chamber being fed to the bottom of the next anode chamber in series by connecting supply pipes. According to a further modification (Figs. 3 and 4, not shown), a plurality of cells are provided in which the tubular diaphragms are grouped in units, the electrolyte flowing in parallel through the diaphragms of a unit, but in series through unit after unit. The electrodes may be a wire rod or a helix having a diameter small in relation to its length. A suitable insoluble anode for working the process described consists of a wire of silver, copper, or aluminium coated with a layer of tantalum and preferably also with an overlayer or winding of platinum. Such an electrode may be U-shaped, both ends being out of the electrolyte, thus avoiding the copper &c. of the core exposed at the cut surface of the wire being in contact with the electrolyte. In this form of electrode one limb of the U may be wound round the other.
Patent GB-1034466-A (GB)
Title: Heat exchange assembly
IPC: C02F1/22
Filed: 1963-08-01
Abstract: 1,034,466. Plate-type heat exchangers. DESALINATION PLANTS (DEVELOPERS OF ZARCHIN PROCESS) Ltd. Aug. 1, 1963 [Oct. 16, 1962], No. 30594/63. Heading F4S. [Also in Division B1] A horizontally arranged heat exchange assembly of a desalination system (see Division B1) is supported on stanchions 50 and comprises a plurality of dimpled contacting heatexchange plates 17 between spacer plates 55, 55<SP>1</SP>, 57, 57<SP>1</SP> aligned by vertical T-bars 68, 69, 63, Fig. 3 (not shown), arranged peripherally around the assembly and bolted alternately to upper and lower support plates 51, 49 respectively and to an intermediate plate 53 between which the heat exchange plates are compressed by nuts 61, 61<SP>1</SP> on threaded rods 59 the load being transferred to the support plates through straps 79, 89 and channel members 73, 93. Gaskets 103, Fig. 9 (not shown), between adjacent plates hermetically seal the spaces 105 between the plates, the edges of which are bent over to prevent the gaskets being displaced. The plates and gaskets contain ports, e.g. 138, 140, 142 at each end arranged so that sea water to be cooled flows upwardly through the assembly in spaces 105 in counter current to the fresh water and brine flowing in adjacent passages downwardly through the assembly. Each liquid flows in a serpentine path, the direction of flow reversing between passages. To connect a port, e.g. 138, with a passage 105, a gap is left in the gasket wall into which is inserted a corrugated metal strip 150 which prevents the gasket expanding into the gap and improves flow characteristics. In modifications the intermediate plate is replaced by a spacer plate, the plates may be arranged to provide paths for only 2 fluids and the aligning bars may be attached to the upper and lower support plates only.
Patent GB-913187-A (GB)
IPC: B21D19/00
Filed: 1961-08-24
Abstract: 913,187. Rounding ends of metal plates. STOLTING, L. Aug. 24, 1961 [Aug. 25, 1960], No. 30610/61. Class 83 (4). A device for pre-rounding the ends of plates to be bent on a plate-bending machine comprises at least two pairs of profiled rollers rotatably mounted on a common support, at least one roller of each pair being driven. Referring to Fig. 1, the two upper rollers 1 and 3 are mounted on the extended shafts 5, 6 of the bottom rollers of a plate-bending machine, by which they are driven, and are axially adjustable. The bottom rollers 2, 4 are mounted on eccentric spigots 7, 8 in the machine standard 9. All four rollers are preferably removably mounted and the driven rollers 1, 3 may have roughened surfaces to prevent slip relative to the plate.
Patent GB-626882-A (GB)
Title: Improvements relating to the recovery of metal compounds from solutions
IPC: B01J41/00
Filed: 1946-10-15
Abstract: Solutions, particularly waste liquids, containing chromium, molybdenum, tungsten or uranium in the form of an oxygen-containing complex anion are brought into contact with an anion exchanger in salt form to cause exchange of the anionic complex, and this is then displaced by treatment with an acid, e.g. hydrochloric or sulphuric acid, or salt, e.g. sodium chloride, sulphate or carbonate, ammonium sulphate or chloride, or base, e.g. potassium, sodium or ammonium hydroxide.  A mixture of salt and base may be employed.  When acids are employed, reduction of the liberated compound, e.g. to the chromic state may occur.  Using salts or bases, chromates, tungstates, &c., are produced.  Excess recovery agent may be used, being subsequently distilled off in the case of ammonia, or recycled in the case of non-volatile agents.  Suitable exchangers are aniline black, aromatic amine-formaldehyde resins and aliphatic amine resins such as those prepared from the polyalkylene polyamines. They are suitably employed in chloride or sulphate form. Specification 572,836 is referred to.ALSO:Solutions, particularly waste liquids, containing chromium, molybdenum, tungsten or uranium in the form of an oxygen-containing complex anion are brought into contact with an anion exchanger in salt form to cause exchange of the anionic complex, and this is then displaced by treatment with an acid, e.g. hydrochloric or sulphuric acid, or salt, e.g. sodium chloride, sulphate or carbonate, ammonium sulphate or chloride, or base, e.g. potassium, sodium or ammonium hydroxide.  A mixture of salt and base may be employed.  When acids are employed, reduction of the liberated compound, e.g. to the chromic state may occur.  Using salts or bases, chromates, tungstates &c. are produced.  Excess recovery agent may be used, being subsequently distilled off in the case of ammonia, or recycled in the case of non-volatile agents.  Suitable exchangers are aniline black, aromatic amine-formaldehyde resins and aliphatic amine resins such as those prepared from the polyalkylene polyamines.  They are suitably employed in chloride or sulphate form.  Specification 572,836 is referred to.
Patent GB-248129-A (GB)
Title: Improvements in or relating to apparatus for the measurement of fluids by volume
IPC: B67D7/16
Filed: 1924-12-20
Abstract: 248,129. Fraser, J., and British Petroleum Co., Ltd. Dec. 20, 1924. Counting - apparatus; stop-mechanism. - In a fluid meter raving a distributing valve actuated by fluid under pressure controlled by the variation of pressure in the measuring chamber, means are provided for stopping the flow when a predetermined quantity l:as been delivered. A measuring cylinder 1, Fig. 3, is supplied from a chest 5 under the control of a distributing valve 10, 11. The means for stopping delivery comprises a disc 35, Fig. 4, provided with a series of holes 40 forming graduations corresponding to the quantity delivered at each stroke of the piston 2. At each operation of the distributing valve, the disc is turned through one graduation by pawl and ratchet mechanism, until a peg placed in one of the holes 40 depresses a spring plunger 34 and locks the mechanism with the distributing valve in its central position.
Patent GB-358292-A (GB)
Title: An improved construction of burners for gas-fired ovens or kilns for use in the manufacture of tiles, pottery and other ware
IPC: F23D14/00
Filed: 1930-10-15
Abstract: 358,292. Gas-fired tunnel &c. kilns. STEELE, H., Niddrie Fireclay Works, Portobello, Midlothian. Oct. 15, 1930, No. 30803. [Classes 51 (i) and 51 (ii).] A gas-fired oven or kiln, such as a tunnel kiln for use in the manufacture of tiles, pottery, &c., is provided with burners consisting of horizontal gas passages E terminating in elongated slits F opening upwardly and passages H discharging preheated air through the kiln walls to mix with the gas. The mixture is ignited through openings J. The parts of the kiln walls above the slits F are inclined so as to deflect the flame on the articles to be fired. To render the cooling of the ware gradual a fan draws the hot gases towards the outlet end of the kiln and burners are arranged in the cooling zone. Reference has been directed by the Comptroller to Specification 16970/14, [Class 51 (ii), Furnaces and kilns for applying &c.].
Patent GB-210551-A (GB)
Title: Improvements in colliery trams and like vehicles
IPC: B61D7/08
Filed: 1922-11-10
Abstract: 210,551. Griffiths, S. Nov. 10, 1922. Doors, wagon; corves.-A colliery . tram or like vehicle is provided with doors in two sections adapted for relative movement about a horizontal axis, and mounted upon the vehicle so that the two ;sections together or the door as a whole may be revolved about a horizontal axis disposed at or adjacent the upper edge of the door. The door comprises an upper part d and a lower part b hinged to the cranked bar c which turns in bearings a<3> on the end of the wagon. The hinge plates d<1> are extended to d<2> to form a stop to prevent outward movement of the top plate. The doors may be locked in the position shown in Fig. 2, either by a hooked bar which slips over the top edge of the upper door d and is housed in the hole b<3> in the transverse bar b<2> or by the D-shaped catches f which have the straight part of the D formed with a square section for half its length and round for the remainder, the square section fitting in a square socket g to lock the catch. Instead of a cranked member c, the top and bottom end of the upper door d may be each provided with a transverse bar forming an axis so that by removing the securing means on the requisite bearings the doors can either be swung about the upper or lower axis.
Patent GB-463452-A (GB)
Title: Improvements in or relating to spring buffers for ships' steering gear and other purposes
IPC: B63H25/52
Filed: 1935-11-08
Abstract: 463,452. Ships' steering gear. CLARKE, CHAPMAN & CO., Ltd., and WOODESON, W. A. Nov. 8, 1935, No. 30914. [Class 114] In a ship's steering-gear wherein the rudder head 15 is connected with a screw 13 and nut 14 by links, there is included in each connection a buffer comprising a spring 8 mounted between collars 5, 6 on a rod 7 with one eye connection 1, and within a casing 11 carrying the other eye connection 9. The collar 5 is disposed against a stepped portion of the rod 7 to move therewith for compression stresses and the collar 5 abuts against a nut thereon to move therewith under tension stresses ; each collar being adapted to abut against fixed parts of the casing 11 when stationary.
Patent GB-721656-A (GB)
Title: Improvements in exhaust silencers
IPC: F01N1/08
Filed: 1952-12-05
Abstract: 721,656. Exhaust-silencers. GREEN, T. C. Dec. 3, 1953 [Dec. 5, 1952], No. 30935/52. Class 7 (2). [Also in Group XXVIII] A silencer a is provided at one end, or both ends, with a stepped spigot b having two or more stubs b<SP>1</SP>, b2, b3 of different internal and external diameters, no two of which are the same. A particular size of exhaust pipe is fitted to the corresponding stub, any unwanted stub or stubs being removed.
Patent GB-784767-A (GB)
Title: Belt grinding machine for woodworking
IPC: B24B21/00
Filed: 1955-10-28
Abstract: 784,767. Belt grinding machines. BOTTCHER, P., BOTTCHER, E., and BOTTCHER, M. [trading as BOTTCHER & GESSNER, KOMM.-GES.]. Oct. 28, 1955 [Dec. 15, 1954], No. 30961/55. Class 60. A belt grinding machine for wood comprises a grinding belt 23 running over pulleys 20, 22; pulley 20 is driven by an electric motor 19, and pulley 22 is adjustable by means 21. A suction hood 42 is provided for dust removal. A pressure beam 28 is articularted to the horizontal arms of bell cranks 24, 25 pivoted at 27, 26 to a cross-beam 17 of the machine frame, the vertical arms of the bell cranks being connected by a bar 29, acted on by a spring 39. A hand lever 37 pivoted at 38 to the cross-beam 17 serves for depressing the pressure beam 28. A pressure beam case 31 is secured to the underside of the beam 28, the case being pivotable about bolt 30 and secured by screws 32, 33, engaging slots 34, 35. The presser within the case 31 comprises highly elastic material 7, material 8 flexible in longitudinal direction but somewhat stiff transversely and preferably provided with ribs 11, 12, 13, and felt &c., 14. The workpiece 36 is supported on a worktable comprising a frame 48 to which parts 49 are screwed; a round bar 52 is mounted at the front of the frame 48 and carries an adjustable fence 53 secured in adjusted position by hand-wheel 54. The worktable has rollers 50 supported by two round bars 46, 47 carried by a frame 45, 44 vertically adjustable by a threaded spindle 55 operated through bevel gearing 56, 57 by a hand-wheel 59. The part 44 can be turned so as to maintain the direction of feed of the workpiece at right angles to the direction of the pressure beam case 31. The table may be reciprocated automatically or may be replaced by driven endless chains.
Patent GB-322059-A (GB)
Title: Improvements relating to spring insertions for boots and shoes
IPC: A43B7/14
Filed: 1928-10-26
Abstract: 322,059. May, J. Oct. 26, 1928. Foot-arch supports. -A spring insertion for boots and shoes, adapted to support the arch of the foot, consists of two or more springs of different lengths connected together at the centre. In Fig. 2 three springs a. a<1>, a<2> are shown, the springs being of similar shape and of respectively increasing curvature and being connected together at the centre by a screw b and a nut d, by riveting, or by spot welding. An elastic pad e is provided over the nut &c. to limit the flattening of the springs and additional non-slip pads may be provided. In a modification, Fig. 5, the lowest spring f has a slot g, two intermediate springs are riveted at i, i<1> to an upper semicircular spring k, and the spring f is secured to the spring k by a rivet l. Thin layers of rubber &c. may be placed between the springs at their point of connection; the springs may be provided with a leather &c. covering sole or may be fitted into a leather &c. case, and thin rubber may be placed between the springs and the leather. The springs may be connected so as to allow of relative movement; the insertion may be placed between the inner and outer soles of a shoe.
Patent GB-174235-A (GB)
Title: Safety device for cages for mines
IPC: B66B5/28
Filed: 1920-11-05
Abstract: 174,235. Heller, C. Nov. 5, 1920. No Patent granted (Sealing fee not paid). Catch gear and like safety retaining-mechanism.-Descent of the cage is prevented when the hoisting rope breaks by a series of pairs of pivoted upwardly inclined arms c which are supported by springs e. During normal working, each pair of arms is withdrawn from the shaft immediately before the passage of the cage in any known manner.
Patent GB-898678-A (GB)
Title: Photographic printing apparatus with device for the automatic regulation of the time of exposure
IPC: G03B27/80
Filed: 1958-10-01
Abstract: 898,678. Photographic printing apparatus. AGFA A.G. Oct. 1, 1958 [Oct. 23, 1957], No. 31357/58. Class 40(3). In a photographic printing apparatus in which the time of exposure is automatically regulated by a photo-electric arrangement, a further light sensitive circuit adjusts the intensity of the printing light to a predetermined value. With switch bar 25 raised, light from lamp 1, supplied via resistor 9, is transmitted via negative and adjustable diaphragm 6 to printing easel 5. The output voltage of a photo-cell 14 which is energized by light reflected from the easel, is applied to a circuit 13 in which it controls the gain of a valve to which a small A.C. input is applied. The output of the valve is compared in a thyratron control circuit with the output of a similar valve, whose gain is controlled in an opposite sense and to which a similar input is applied. The circuit is initially set up so that each valve supplies the same output when the intensity of the printing light has a predetermined value. The control circuit drives a motor 20 controlling the adjustable diaphragm which is adjusted until both valves provide the same amplitude of output signal. With switch bar 25 depressed, printing paper is inserted and a switch 32 operated. The full mains supply is connected to the printing lamp and the photo-cell is connected in an exposure time control circuit 12 of known form which terminates the exposure when the integrated value of the light measured by the cell reaches a predetermined value. Specification 873,826 is referred to.
Patent GB-253006-A (GB)
Title: Improvements in rectal appliances
IPC: A61M31/00
Filed: 1925-12-14
Abstract: 253,006. Donovan, A. Dec. 14, 1925. Rectal appliances. - A rectal appliance for supplying ointment to the rectal passage comprises a plug 1 having perforations 4 leading to a central passage 3 opening at its lower end into a cylinder holding the ointment and provided with a piston which can be forced inwards and held in any position. In the form shown in Fig. 1 the cylinder 2 is closed by a cupshaped member 5 through which a screwed stem 7 passes carrying the piston 6. The member 5 and cylinder 2 are secured together by means of inter-engaging projections. The cylinder 2 may be detachable from the plug 1. Fig. 4 shows a modification in which the ointment reservoir is formed in the lower bulbous end 2<x> of the appliance, the pistons being in the form of a screwed plug 11.
Patent GB-744371-A (GB)
Title: Improvements in or relating to clockwork controlled electric switch mechanism
Inventor: BOWEN TOM
IPC: G04F3/02
Filed: 1952-12-12
Abstract: 744,371. Clockwork actuation of switches; snap-action switches. PULLARS INSTRUMENTS, Ltd. Jan. 6, 1954 [Dec. 12, 1952], No. 31601/52. Class 38(5) A switch comprises a cam adjustable to a selected position from which it is returned by clockwork, a first, manually-operable, lever having a snap-spring and connected to contacts, a second lever also having a snap-spring and connected to further series-connected contacts and operable by the cam, and a third lever controlling the clockwork and having parts engageable by the first and second levers. In one form, Fig. 1, the first lever 19 has a blade spring 14 connected to a movable contact 10, which is opened by anticlockwise tilting of lever 19, such movement also causing clockwise movement of the third lever 31 to the position shown where a wiper 32 thereon engages and stops the clockwork balance wheel 26. The cam 25 is set by anticlockwise rotation, during which the second lever 22 is tilted clockwise to close contacts 12, 13 with a snap action given by spring strip 15. If contacts 10, 11 are closed, the circuit through 16, 17 is completed. If they are open, they are subsequently closed, when desired, by depression of a button 35 which also tilts the lever 31 anti-clockwise-to release the wheel 26. The cam 25 is thereby returned to its original position where a pin 24 on lever 22 drops into a depression 28 in the cam to open the contacts 12, 13. At the same time, a projection 30 on lever 22 tilts lever 31 to stop the clockwork again. In a modification, Fig. 5, both springs 14, 15 act through rods 36, 37 on a single spring contact blade 38 so that both springs must be in their upper positions before the contacts 38, 39 can close. Specification 730,663 is referred to.
Patent GB-1226913-A (GB)
Title: Isothiazole derivatives
IPC: C07D275/02
Filed: 1969-06-23
Abstract: 1,226,913. Isothiazole derivatives. E. MERCK A.G. 23 June, 1969 [6 July, 1968; 16 May, 1969], No. 31611/69. Heading C2C. [Also in Division A5] Compounds of formula wherein R<SP>1</SP> is a hydrogen atom, a C 1-6  alkyl group or a group -COR<SP>2</SP>, R<SP>2</SP> is a group Ar or a C 1-18  alkenyl radical, optionally substituted by halogen atoms or cyano group or groups Ar, and in which one or more -CH 2 - or =CH- groups may be replaced by oxygen and/or optionally substituted -NH- and/or =N- and/or a keto group, or R 2  is a C 3-6  cycloalkyi group, or a furyl, pyrrolyl or thienyl group optionally substituted by halogen atoms or nitro, sulphonic acid or acetyl groups, Ar is a phenyl or naphthyl group optionally substituted by halogen atoms or cyano, nitro, hydroxy, mercapto, amino, C 1-4  alkyl, C 1-4  alkoxy, C 1-14  alkylthio, C 1-4  alkylamino or di-C 1-4  alkylamino groups and R<SP>3</SP> is a chlorine or bromine atom are prepared by chlorination or bromination of a compound of formula wherein X is a hydrogen atom, an equivalent of a metal cation, an ammonium ion or a radical of formula Many of the products where R 1  is an acyl group are novel. The compounds of the invention have insecticidal, herbicidal, fungicidal and nematocidal activity {see Division A5).
Patent GB-835399-A (GB)
Title: Improvements in and relating to gyratory rock crushers
IPC: B02C2/06
Filed: 1958-10-03
Abstract: 835,399. Gyratory crushers. THOMAS & TAYLOR Ltd., W. S., and TAYLOR, W. S. Oct. 3, 1958, No. 31683/58. Class 59 A gyratory crusher comprises a crushing mantle 6 rotatably mounted on the cranked portion 12 of a shaft 11 which is rotatable about a fixed axis. The crusher also comprises a crushing ring 5 interposed between top and bottom spiders 3, 4 which are connected together by means of bolts 8. The mantle 6 is mounted on a core 13 housing roller bearings 14 which are fitted over the cranked shaft portion 12. The lower end of the shaft 11 extends below the spider 4 and has coupled thereto a belt-driven pulley 16. Brackets 17 may connect the crusher to a foundation, preferably through shock absorbers. Means may be provided in the spider 3 for suspending the crusher from an elevated point.
Patent GB-1136676-A (GB)
Title: Holders for fabric samples
IPC: G09F5/00
Filed: 1967-07-10
Abstract: 1,136,676. Bookbinding; suspension filing folders. F. DREXEL. 10 July, 1967 [8 July, 1966], No. 31705/67. Headings B6A and B6E. [Also in Division A4] Samples of fabric 6 are secured at one edge between the leaves of a folded strip of cardboard 5 by a coating 4 of self-adhesive material on the inside of the folded strip. The strip may have a reinforced curved hanging slot 7 or a plastics hook insert, and the adhesive may be directly on or on a carrier strip on the cardboard and may be covered by a cover strip.