baber/WOPTO huggingface dataset:
Patent GB-980091-A (GB)
Title: Organic mercury compounds and method of producing the same
IPC: C07F3/10
Filed: 1961-02-23
Abstract: The invention comprises organo-mercuri pentachlorophenolates of formula <FORM:0980091/C2/1> wherein R stands for an alkyl radical other than the methyl radical, or an alkoxyalkyl radical. Specified compounds include ethyl mercuric, butyl mercuric, and methoxyethyl mercuric pentachlorophenolates.  They may be made by reacting pentachlorophenol or its alkali metal salts with a mercury compound of formula RHgX, wherein R is as above defined and X is halogen or an acid radical.  The reaction is preferably carried out in an organic solvent (e.g. methanol, ethanol) or water.  It is preferred to react an RHg halide with alcoholic caustic potash and after filtering off any precipitated potassium halide adding the pentachlorphenol in solution in the same alcohol.
Patent GB-583263-A (GB)
Title: Improvements in or relating to change-speed gear selectors
IPC: B23Q5/18
Filed: 1944-04-11
Abstract: 583,263. Controlling change-speed gearing. LIDKOPINGS MEKANISKA VERKSTADS AKTIEBOLAG. April 11, 1944, No. 6673. Convention date, April 17, 1943. [Class 80 (ii)] Three gear-shifting levers 29, 30, 31, of a turret-lathe, change-speed gear, are preselectively actuated by a disc 6, which has three concentric series 20, 21, 22 of selectively placed holes (or projections) of varying depth, each series co-operating with a pair of axially sliding plungers, 25, 26; 24, 27 and 23, 28, depending respectively from opposite ends of the individual gear-shift levers 29, 31, so that an upward axial stroke of the disc 6 will move the levers into any combination of positions previously selected by rotation of the disc. As shown, each lever 29 &c. has three positions, giving 27 combinations in all. The disc 6 is moved axially against spring return, by a lever 15 acting through pads 18, and is turned to preselect, by a dial 5 provided with a handle and a ball-detent to retain it in set positions, which are indicated by a fixed pointer 11 co-operating with graduations on the dial.
Patent GB-249121-A (GB)
Title: Improvements in or relating to mercury vapour apparatus
IPC: H05B41/12
Filed: 1926-03-10
Abstract: 249,121. Hewittic Soc. Anon., (Assignees of Becq, A.). March 14, 1925, [Convention date]. Low-pressure metallic-vapour apparatus. - In mercury-vapour apparatus such as rectifiers, the relative movement of two electrodes to form an auxiliary arc at starting is produced by heating a bimetallic device, arranged within the envelope and directly displacing one or more electrodes. One or more bimetallic elements with the same or different constituents and straight or curved may be used. An auxiliary anode may be displaced relatively to the main fixed cathode or other electrode, or the cathode may be displaced simultaneously relatively to each other or to other electrodes. A single bimetallic element c may carry an auxiliary graphite electrode a resting on the surface of the mercury cathode i when the rectifier is inoperative. The electrode a is insulated from the element c and connected to a terminal g by a flexible connection f. The element c is mounted at one end on a terminal d and its free end is permanently connected to the cathode i by an electrode h. To strike the arc, a current is passed through the element c and a resistance r from a source k, and the element c moves to the position shown by dotted lines. The energy between the points k, l is cut off when the main arc is struck; if the main arc is not struck and the movement of the electrode a breaks the auxiliary arc, a relay m is de-energized and breaks the heating circuit. The electrode a may be fixed directly on the free end of the element c. The Specification as open to inspection under Sect. 91 (3) (a) comprises also heating the bimetallic device by heat from the rectifier or other source. This subject-matter does not appear in the Specification as accepted.
Patent GB-370149-A (GB)
Title: Improvements in electric cables
IPC: H01B9/06
Filed: 1931-03-04
Abstract: 370,149. Cables. CALLENDER'S CABLE & CONSTRUCTION CO., Ltd. and HUNTER, P. V., Hamilton House, Victoria Embankment, London. March 4, 1931, No. 6709. [Class 36.] To prevent the formation of voids in a singlecore cable having impregnated insulation of circular cross-section, the lead sheath of the cable is formed with one or more relatively flat sides which bend. outwardly or inwardly to provide an increased or decreased cross-sectional area of the cable when the impregnating fluid expands or contracts. The Figure shows a stranded conductor 1 insulated with a circular wrapping of impregnated paper 2 and enclosed within a triangular lead sheath 4 formed with rounded corners 5. A conductive layer 3 is applied over the insulated conductor to contact with the flat sides 6 of the sheath 4. Filling pieces 7, consisting of paper with a covering of copper tape or metallized paper, may be disposed in the corners of the sheath. The paper 2 surrounding the conductor may be corrugated as described in Specification 367,445.
Patent GB-1278002-A (GB)
Title: A fluidised solids reactor and a method of directly heating the same
Inventor: BECHTHOLD HORST
IPC: F23G5/30
Filed: 1970-02-11
Abstract: 1278002 Regenerating pickling baths METALLGESELLSCHAFT AG 11 Feb 1970 [12 Feb 1969] 6709/70 Heading C1A [Also in Division F4] In a fluidized solids reactor for regenerating pickling baths, an admission unit for admitting liquid fuel and an oxygen-containing fluidizing gas consists of an inner tube 2 mounted on a grate 12 (Fig. 1) so as to communicate with a wind-box 14, an outer tube 1 arranged concentrically with the inner tube 2 and mounted on the grate 12 communicating via a pipe 15 with a main fuel supply pipe 16, and a distributer head consisting of an upper portion 3 attached to the inner tube 2 and a bottom portion 4 attached to the outer tube 1, the two portions defining a mixing chamber 7 and an outlet orifice 11. The inner tube 2 is preferably screwed into the grate 12 so as to provide means for adjusting the size of the outlet orifice 11. In another embodiment (Fig. 2), the admission unit has an inner tube 21 fitted at its upper end with an atomizer nozzle 28, and an outer tube 20 connected to a wind box 23. The two parts of the distributer head 22 are rigidly connected by ties which may be in the form of pipes to transmit part of the fluidizing gas to an annular slit 36 to act as a coolant. A fluidized solids reactor as described in the above embodiments may be used to carry out the regeneration of a hydrochloric acid pickling bath, the fluidized bed consisting of iron oxide and preconcentrated pickling bath liquor being introduced into the bed. The embodiments of Fig. 1 and Fig. 2 can respectively be used satisfactorily with light fuel oil and with heavy fuel oil preheated to 130 C.
Patent GB-778604-A (GB)
Title: Improvements in or relating to foot or like imprinting devices
IPC: A43D1/02
Filed: 1956-03-02
Abstract: 778,604. Foot imprinting devices. SCHOLL MANUFACTURING CO., Ltd. March 2, 1956 [March 3, 1955], No. 6724/56. Class 17 (3). [Also in Group XVI] A device for taking an impression of a foot comprises a pair of internally dished cover members 1, 2 hinged together by a pin 3 and a similarly hinged frame 8 mounting a flexible imprinting diaphragm 10 which is preferably smooth on one face and has closely spaced ribs of differing thickness on the other so that the impression made depends on the weight on the particular area. The ribbed face is inked as by a roller 24 a reference card, 11 is placed in the other cover 2 and the frame 8 pivoted to lie over it. The foot can then be pressed on the diaphragm to make an impression. A heel guide 20 is hinged at 21 to the frame 8.
Patent GB-345070-A (GB)
Title: Improvements in work guiding and uncurling devices for use with sewing machines
IPC: D05B29/00
Filed: 1930-03-01
Abstract: 345,070. Sewing-machines. SUMMERS, G. L., 69, Wiverton Road, Notting- ham. March 1, 1930, No. 6785. [Class 112.] Work-guides.-A machine for seaming knitted goods in which the edges are apt to curl, is provided with rotatable means independent of the feed, for straightening such edges before seaming. The machine has the usual needle 3, pressed-foot 5, and feed dog 6. In front of the stitch-forming devices are one or two spiral members 8, 9, rotated by suitable means to uncurl the edges a, a<1> of fabric before seaming. The uncasted edges may pass between guides 26, 27, 28 and a work-support 16 may be added.
Patent GB-817010-A (GB)
Title: Spin echo memory processes
IPC: G11C11/16
Filed: 1956-03-05
Abstract: 817,010. Electric digital-data-storage apparatus. INTERNATIONAL BUSINESS MACHINES CORPORATION. March 5, 1956 [March 8, 1955], No .6828/56. Class 106 (1). In a spin echo data storage multiple read out of data is made possible in the case of stimulated echo storage by using recollection pulses of less than 90 degrees, and in the case of mirror echo storage by merely repeatedly applying a normal recollection pulse of 180 degrees. For stimulated echoes, Fig. 4, the data Pi is entered after a pre-pulse Pp, and can be read out a number of times by applying recollecting pulses P+ 1 ,P+ 2 , &c., giving echoes E 1 ,E 2 , &c. Each recollection pulse is preceded by a different polarizing field inhomogeneity varying pulses C 1 , C 2 , &c., thus preventing (as described in Specification 798,021) spurious mirror or stimulated echoes, such as Es, which is a stimulated echo corresponding to the recollection pulse P +   1 , and which inhomogeneity varying pulses may be a word* labelling pulses as described in Specification 816,659. The repeated production of mirror echoes is also described (Fig. 5, not shown), the echoes appearing alternatively in " mirror " order and " entry " order.
Patent GB-471683-A (GB)
Title: Improvements relating to froth flotation cells
IPC: B03D1/16
Filed: 1936-03-06
Abstract: 471,683. Flotation apparatus. CALLOW, J. M. (General Engineering Co., Inc.) March 6, 1936, No. 6829. [Class 82 (ii)] A froth flotation cell comprises a rotating gas disseminating device, e.g. a disc, means to introduce gas into the pulp at a point below the device, and baffles arranged so as to extend into but only partly to bridge the space between the cell walls and the edge of the device. The baffles are preferably mounted on or formed integral with supports disposed on the bottom of the cell or liners for the cell walls. The combined liners or base supports and baffles may be made in sections which may interlock. Fig. 2 shows a tank divided by partitions 5 into a plurality of cells 7, 8, 9, 10, each comprising an air-distributer 24 and a rotating disc 23. The baffles 30 are radially arranged at the ends of the tank and are perpendicular to the walls along the sides. In an alternative arrangement the baffles are radially disposed round the disc in each cell. Figs. 4, 5 and 5a show various arrangements of combined baffles 30 and wall liners 35, these being made either in fiat sections 33 or corner sections 32. The space between the corner sections and the cell walls is preferably filled in with triangularly shaped blocks 37, e.g. of wood, the upper surfaces of which are sloped towards the corners. The end liners are cut away as shown at 13 and 14, Fig. 5, to allow entry and exit of the pulp. The combined supports and baffles may be made of wood, welded or cast metal, moulded plastic material, &c. The air distributer may, as shown in Fig. 7, comprise a body portion 40, which fits into a hole in the cell bottom and is secured by a flange 41, and a member 42 with recess which is covered by a perforated medium 44 such as canvas or rubber. Alternatively, a hole in the cell bottom may be covered with the perforated medium and a manifold secured to the underside, or the air may be supplied by a pipe passing through the cell bottom, the top of the pipe being provided with a flap valve. In the form shown in Fig. 9, the air is supplied by a pipe 54 to a member 53 which is provided with bearings and stuffing boxes and in which is mounted the rotating shaft 20, which is hollow and has an aperture 55 to admit the air, and carries on its lower end the gas disseminating disc 23. The disc, which may be either blank or perforated, has a central aperture so that the air passes to its underside. The disc may be of rubber reinforced with a flexible medium such as canvas or, as shown in Fig. 10 may, when the air is supplied through the shaft be formed as a flat member with a recess 57 in its under portion which is covered by a perforated medium 57<1> of rubber or canvas secured by a grid or spider 58. The air passes through a hole 59 and through the perforated medium into the pulp.
Patent GB-1033462-A (GB)
Title: Improvements in and relating to the securing together of two-part electrical accessories
IPC: H01H23/08
Filed: 1964-02-19
Abstract: 1,033,462. Nuts; eyelets. CONTACTUM Ltd. Feb. 19, 1964 [May 13, 1963], No. 6901/64. Heading F2H. [Also in Divisions E2 and H2] A push fit connection comprises a peg fitting in a rigid hollow projection disposed on confronting surfaces with a resiliently compressible sleeve engaging both the peg and the projection. Threaded bolts 3 projecting from a base 1 enter " elastic " sleeves 5 held in hollow projections 4 on a cover 2. Alternatively, the sleeves are slipped over the hollow projections and fixed by spring rings thereto (Fig. 3, not shown). Another embodiment provides sleeves 5b (Fig. 4, not shown), forming the nuts for bolts 3, the sleeves being slit and surrounded by rings 11, such that connection is made by pressing the hollow cover projections 4b into the sleeves 5b. In the Fig. 2 embodiment, hollow projections 4 have internal ribbing or threading, as have the co-operating external surfaces of the sleeves 5. Bolts 3 need have only one circumferential rib on the part entering a sleeve 5. The recesses in the hollow projections 4 are circular or non-circular in cross-section, as are the ends of sleeves 5 entering therein.
Patent GB-567396-A (GB)
Title: Improvements relating to shock-absorbers
IPC: F16F13/08
Filed: 1943-05-01
Abstract: 567,396. Shockabsorbers. JENNINGS, H. W. K. (Vickers, C. B.). May 1, 1943, No. 6912. [Class 108 (iii)] A shock-absorber applicable particularly to aircraft landing gear, machine and power tools and for checking recoil in gun mountings, comprises a body 15 of rubber or other elastic material having a fluid-containing bore 19 closed at one end and in communication at the other end with a chamber 8 in which a load-receiving piston 20 is slidable, the body 15 being surrounded by a rigid casing 3 which substantially prevents expansion of the body in the direction of the bore, but permits expansion in a lateral direction. As shown, the chamber 8 is separated from a chamber 14, containing a neck-like extension of the body 15, by a partition 9 having ports 10, 12 controlled respectively by a oneway check valve 11 and a metering pin 13. In operation, on compression of the device, fluid is forced freely past the valve 11 causing expansion of the bore 19, and the initial resistance to expansion of the body 15 absorbs the major portion of the impact force or shock. On rebound, the valve 11 closes the port 10 and flow of fluid is controlled by the pin 13. In modifications, (a) the casing 3 may be remotely connected by a pipe (not shown) to the chamber 8 ; (b) the bore 19 may be tapered in one or other direction to extend the period of major resistance ; and (c) the body 15 may be of laminated form or consist of internesting, lubricated cups or sleeves.
Patent GB-476661-A (GB)
Title: Device for the high-precision measurement of small quantities of liquids
IPC: B01L3/02
Filed: 1936-03-07
Abstract: <PICT:0476661/III/1> <PICT:0476661/III/2> A pipette or burette is fitted with mechanical means for very accurate adjustment of the liquid level.  As shown in Fig. 2, this takes the form of a needle valve 2 or similar rapidly closing valve situated between the measuring tube 7 and the source of pressure and/or suction, which may be a rubber bulb 6.  A valve 12 communicating with the atmosphere may be provided to permit renewed inflation or deflation of the bulb 6 or to control the dropping of liquid from the tube; it consists of a cap 14 screwing down upon the end of a tube having a groove 13 in its outer surface to afford an air passage.  An alternative socket 9 normally closed by a plug 10 may be provided to enable the tube 7 to be fitted in an inverted position.  Fig. 5 shows an alternative embodiment of the invention, in which the liquid level is controlled by a screw 22 bearing on a flexible diaphragm 20.  A smaller similar diaphragm 19 may be fitted for fine adjustment both in this modification and in that previously described.  For conducting multiple analyses a number of similar burettes may be connected in parallel to a single level-adjusting means, and in this case only one of the burettes need be graduated.
Patent GB-992207-A (GB)
Title: Air operated jig washer
IPC: B03B5/20
Filed: 1964-02-19
Abstract: 992,207. Jig washers. BETEILIGUNGSUND PATENTVERWALTUNGSGESELLSCHAFT. Feb. 19, 1964 [Feb. 20, 1963], No. 6977/64. Heading B2H. An air-operated jig washer for coal, ore &c. is provided with bellows 3 arranged beneath a screen 1, the bellows being made of rubber or plastics material. The material is separated as it moves from the inlet end A to the outlet end B by the pulsating action of water through the screen, such pulsations being effected by the bellows which are provided with openings 5 for the entry and escape of air. The bellows are secured at one end to fixed bridges 4 so that the stroke of the first bellows is in a downward direction and the other two in an upward direction. As shown in Fig. 3, stabilizing rings of steel or plastics material are vulcanized around each bellows and internal return springs of rubber or steel urge the bellows to its compressed condition. A cap 10 is also made of rubber or steel and the bellows are guided in their stroke by either springs 11 or rods extending through tubes in the bellows. Instead of the bellows being of elongated form, they may be circular in cross-section and disposed close together in series. The control of the apparatus can be effected by float or isotope.
Patent GB-228736-A (GB)
Title: Improvements in joints of artificial limbs or the like
IPC: A61F2/64
Filed: 1924-03-19
Abstract: 228,736. Wright, W. March 19, 1924. Disc hinges.-The outer ring 6 of a single ball-bearing has a driving fit in an apertured ear 4, Fig. 9, on one member of an artificial knee joint, while the inner ring, 5 is locked between adjustable discs 9, which are screwed into spaced ears 3 on the second members 2, by a screwed pin 10. The pin 10 is oppositely threaded to the discs 9. Only one disc 9 may be used. Projections on the discs 9 may engage in the ring 5 to prevent relative rotation. To limit relative. movement of the limb members, flats 1, 13 and shoulders 14, 15, Fig. 6, contact with a flat 12 and abutments 16, 17, Fig. 8.
Patent GB-1023673-A (GB)
Title: Improvements in or relating to apparatus for supplying coolant or like fluids to machine tools
Inventor: VICARAGE GEORGE
IPC: B23Q11/10
Filed: 1964-02-20
Abstract: 1,023,673. Tank vehicles. SIDMOUTH ENGINEERING CO. Ltd. Feb. 8, 1965 [Feb. 20, 1964], No. 7109/64. Heading B7B. [Also in Division F1] A truck having a telescopic handle 5, 6 is provided with a tank 1, containing cutting fluid which is pumped by the motor driven submerged pump unit 9 to the nozzle 22 via control valve 26, a funnel-shaped tray 28 returning the fluid to the tank.
Patent GB-558287-A (GB)
Title: Improvements relating to the refining of copper base alloys
IPC: C22B15/00
Filed: 1942-05-26
Abstract: 558,287. Alloys. STONE and CO., Ltd., J.. MURPHY, H. J., and CALLIS, G. T. May 26, 1942, No. 7114. [Class 82 (i)] Copper alloys are refined by introducing beneath the surface of the molten alloy tin chloride vapours, whereby a reaction occurs between the chloride and a metal such as lead or zinc in the alloy, such metal being removed as chloride and tin entering into the alloy. Stannous chloride may be placed in a refractory container open at one end which is fitted with a porous plug, this end being lowered into the molten alloy to an adjustable depth to control the rate of the passage of chloride vapour into the alloy; or stannic chloride may be vaporized in an external container and introduced into the alloy through an adjustable inlet. The treatment of copper alloys containing specified proportions of tin and lead, and of tin, zinc, and lead, is referred to.
Patent GB-1204838-A (GB)
Title: Improvements relating to current rectification systems
IPC: H02M1/08
Filed: 1969-02-10
Abstract: 1,204,838. Static rectifier systems. BROWN BOVERI & CO. Ltd. 10 Feb., 1969 [12 Feb., 1968], No. 7132/69. Heading H2F. A rectifier system, Fig. 3, comprises a string of controlled semi-oonduotor rectifiers 2, each rectifier shunted by diodes 3, 4 which exhibit avalanche behaviour at a predetermined voltage acting opposite to the direction of forward current conducting voltage of the rectifiers, and series connected capacitors C n , C n-1  &c. (which may also be in series with attenuating resistors 5), each shunting one or a group of rectifiers and having values of capacitance which diminish progressively toward the lowest potential, i.e. earth potential point of the string, which may be at a mid-point or at one end. Thus C n =¢C 0 .n (n-1), where C 0  is an initial value corresponding to stray capacitance to earth of one or a group of rectifiers, and C n  is the capacitance of the capacitor shunting the nth rectifier or group thereof. A saturable choke 6 is connected at one end of the string while further saturable chokes 6 may be connected at intermediate positions. If the rectifiers 2 exhibit avalanche behaviour in the forward-conducting direction the diodes 3 may be replaced by ordinary non-avalanche diodes, the avalanche diodes 4 remaining. An additional capacitor C n <SP>1</SP> and resistor 5<SP>1</SP> may be connected as shown at one end of the string. The value of the capacitances of C n  &c. is sufficient to swamp the effect of any stray capacitance to earth of the individual rectifiers on the distribution of voltage between the rectifiers. The thyristors may be light-controlled.
Patent GB-623807-A (GB)
Title: Improvements in or relating to glass mixtures and process of forming same
IPC: C03C11/00
Filed: 1946-03-08
Abstract: Floats for fish nets are of cellular glass prepared by heating a ground mixture of glass cullet and a gassing agent in a mould (see Group XXIII).