baber/WOPTO huggingface dataset:
Patent GB-816360-A (GB)
Title: Electric remote-control positioning system
Inventor: WILLEMS PAUL
IPC: G05D3/12
Filed: 1957-05-01
Abstract: 816,360. Electric selective signalling systems. ATELIERS DE CONSTRUCTIONS ELECTRIQUES DE CHARLEROI. May 1, 1957 [July 6, 1956], No. 13866/57. Class 40 (1). An electric remote-control positioning system is characterized in that the positioning of the movable element by means of a servomotor is controlled by a synchronous transformer associated with a counting device which counts the number of revolutions of the rotor of the synchronous transformer, the preselection of the number of complete revolutions of the synchronous transformer rotor controlling a coarse positioning of the movable element, while a device for control of the final angular position of the synchronous transformer rotor effects a fine positioning of the movable element. As described a tool P, Fig. 1, is positioned by a motor M which drives a screw A. The motor also drives a synchronous transformer R which produces a voltage dependent upon the angular position of the screw (the voltage having a period of one revolution of the shaft). Thus while the screw is rotating one cycle of A.C. current, shown dotted in Fig. 2, is produced by the synchronous transformer for each revolution of the screw A. This A.C. current passes first through a phase discriminator DP and then through an impulse generator, and the pulses so produced, there being one for each revolution of the screw A, are used to count down a pre-set counter C, which when it reaches zero (or 999 depending upon the particular arrangement) energizes a relay coil RC causing the voltage being applied to the motor to be controlled by the output from the synchronous transformer R so that the motor gradually slows and comes to rest the next time the voltage from the synchronous transformer becomes zero. The solid line in Fig. 2 shows the voltage applied to the motor. After 534 revolutions of the motor the voltage for the motor is switched from a steady source Vp to the output from the synchronous transformer and the motor stops at the point a. Fine positioning of the screw A can be achieved by rotating the rotor of the synchronous transformer with respect to the screw A. This relative rotation can be simulated electrically by means of a selsyn S as described, for example, in Specification 758,765, which is referred to.
Patent GB-617185-A (GB)
Title: Improvements in razors for dry shaving
IPC: B26B19/30
Filed: 1946-05-08
Abstract: 617,185. Dry-shavers. CALLESELLA, E. May 8, 1946, No. 13870. Convention date, July 23, 1945. [Class 131] In a hand-operated dry shaver comprising at least one blade resting resiliently on the outer surface of a cylindrical, hollow, apertured rotary member the blade and rotary member are mounted in a handle shaped to be grasped by the fingers and provided with a hollow for the thumb by which the rotary member is oscillated at a peripheral speed corresponding to the rate of movement of the thumb. As shown the rotary member 2, perforated at 10 is mounted on the spindle 7 secured at its ends to the limbs of a U-shaped clamping member 5 between which and the face 4 of the handle 3 the blade 1 is secured. Sheared hairs are shaken out through the apertures 9 in the end plates 8 which in a'modification may have milled edges. In further modifications the rotary member is given oscillatory movement by an operating member pivoted on the handle and engaging a recess in the cylindrical surface and a return spring, two blades may be provided and the cutting edge of the blade may be parallel or oblique to the axis of rotation of the rotary member.
Patent GB-955637-A (GB)
Title: A finger measuring device
IPC: G01B3/34
Filed: 1962-04-11
Abstract: 955,637. Measuring tape. G.COLIN. March 6,1963 [April 11,1962], No.13907/62. Heading G1M. A finger measuring device comprises a tapered graduated band having at the wider end an apertured member through which the narrow end may pass. The edge 14 of the aperture is used as an index.
Patent GB-455899-A (GB)
Title: Preparation of the light-sensitive electrode of photo-electric cells
IPC: H01J40/06
Filed: 1936-05-16
Abstract: 455,899. Photo - electric cells. HEIMANN, W., 29, Werbergstrasse, Tempelhof, Berlin. May 16, 1936, No. 13927. Convention date, May 20, 1935. [Class 39 (i)] Relates to the cathodic oxidation of metal surfaces such as carriers for a caesium or other photo-electric layer and consists in the provision of an arrangement for oxidizing a surface which is completely isolated such as in the case of the photo-electric plate in a television transmitter. In the Figure, A is an electrode serving as anode and i is a transparent plate of mica, glass &c. with a coating m of metal such as silver enclosed in an envelope. An auxiliary electrode K, preferably of square or circular frame formation, is interposed between the plate m and the anode A and is supported by a thin wire acting as a lead. A discharge is established between the electrode K serving as cathode and the anode A in an atmosphere of oxygen at a pressure of À1-À01 m.m. Hg., and the positive ions passing the electrode K strike the metal coating m and initiate the oxidation. The pressure of gas and the distance between the anode and the electrode K are chosen to produce a homogeneous glow column so as to provide uniform oxidation of the surface. When the treatment is complete, the wire support of the electrode K is fused and a spring moves the electrode into an electrically inactive position as at K<1>.
Patent GB-295767-A (GB)
Title: Improvements in the manufacture of talking machine matrices
IPC: C25D1/10
Filed: 1927-05-24
Abstract: 295,767. Gramophone Co., Ltd., and Whyte, S. May 24, 1927. Drawings to Specification. Silvering. - A positive or negative matrix for use in the manufacture of ta1king-machine records is prepared by e1ectrodeposition on a metal matrix of opposite character which has been covered with a film of silver or other metal by a replacement process in order to render the subsequent deposit readily detachab1e. In an example a copper positive is immersed in an aqueous solution of silver nitrate and sodium cyanide. The surface may be rubbed with cotton wool during immersion. It is then rinsed and polished until the si1ver is almost removed. The si1vering solution may be rep1aced by an aqueous solution of mercuric chloride and sodium cyanide.
Patent GB-1003450-A (GB)
Title: Novel organosiloxane-silicate copolymers
IPC: C08G77/26
Filed: 1962-04-11
Abstract: Organosiloxane-silicate copolymers (see Division C3) are used as corrosion inhibitors in aqueous systems that are in contact with metals or alloys, e.g. cooling coils, boilers, refrigeration and air-conditioning equipment, heat-exchange tubes, storage tanks for liquids, pipes, solvent containers, tank cars or ballast tanks containing sea water.  Thus the copolymers can be added to pure water, aqueous solutions containing inorganic or organic compounds, e.g. aqueous NaCl or KCl, refrigerating solutions and corrosive well or river water containing the normal chlorides, carbonates and sulphates, and aqueous solutions of methanol, ethanol, propanol, ethylene and propylene glycols, glcerol, hydroxyl-terminated polyethylene oxide, methylsulphoxide, dimethylformamide, tetrahydrofuran and dioxane.  Generally, 0.01 to 10 parts (by weight) of the copolymer are used per 100 parts of aqueous liquid.  When used in anti-freezes and coolants for the cooling systems of I.C. engines, the compositions may contain (by weight) 0 to 900 parts of water per 100 parts of alcohol, the coolants desirably containing 30 to 900 parts of water.  Various known additives may also be added.ALSO:A copolymer comprising, by weight, (1) from 0.1 to 99.9 parts of at least one siloxane group of the formula RSiO1.5, and/or at least one siloxane group of the formula <FORM:1003450/C3/1> and (2) from 0.1 to 99.9 parts of at least one silicate group of the formula <FORM:1003450/C3/2> wherein R is a methyl, ethyl, phenyl or vinyl radical, Y is -CN, -CH(OH)CH2(OH -CH(CH2OH)2, <FORM:1003450/C3/3> -OCH2.CH(OH).CH2(OH) or R11(OCH2CH2)n(OC3H6)mO-, R11 is H or monovalent hydrocarbon radical, n is at least 1, m is 0 or 1 to 20, n/m is at least 2/1, a is at least 2, Y is separated from Si by at least 2 C atoms of the CaH2a radical, b is 1, 2 or 3, R is a monovalent hydrocarbon radical, c is 0, 1 or 2, b+c is 1, 2 or 3, M is a cation that forms a water-soluble silicate, d is the valency of M and e is 1, 2, or 3, the parts being based on 100 parts of the copolymer, can be made by reacting a siloxane composed of the above group or groups with the water-soluble silicate (2), e.g. at 20 DEG to 150 DEG  C.  If desired, the copolymers may contain up to 99.8 parts of groups of the formulae R111SiO1.5, R12SiO and R13SiO0.5. The copolymers can also contain SiO2 in addition to the essential groups.  M in silicate (2) may be Na, K, Li, Rb, R4N-, wherein R is methyl, ethyl, phenyl, benzyl or hydroxyalkyl, or a polyvalent cation produced by converting polyamines, e.g. guanidine or ethylene diamine, to polyammonium hydroxides.  The starting silicate may be added to the reaction as such or be formed in situ, and the siloxane may also be formed in situ from the corresponding alkoxysilanes. If desired, the copolymers may be formed in solution in an alcohol, e.g. ethylene glycol.  Examples are given.  Uses.-As corrosion inhibitors in aqueous systems, e.g. as coolants or antifreezes (see Division C4).
Patent GB-1545822-A (GB)
Title: Furniture fitting
IPC: F16B12/10
Filed: 1976-04-06
Abstract: In the case of this fitting for furniture which can be dismantled, a supporting part (20) for the one furniture part (23) is attached to the other furniture part (1) by means of an attachment part (3). The attachment part (3) engages detachably through the supporting part (20) and can be engaged in a clamping manner, by rotation, with the limbs of a rail (2) which is inserted into a groove in the other furniture part (1). For this purpose, the attachment part (3) can have projections (8) which are constructed as cutting edges. <IMAGE>
Patent GB-384557-A (GB)
Title: Improvements in and relating to plates for printing coloured line screens
IPC: B41M3/00
Filed: 1932-05-17
Abstract: 384,557. Photo-mechanical printing surfaces ; multicolour screens. RÍCHLING, R., 30, Maria Theresiastrasse, Munich, Germany.-(Assignee of Moosbauer, L. ; 12, Hirschgartenallee, Munich, Germany.) May 17, 1932, No. 14016. Convention date, May 15, 1931. [Class 98 (ii).] A relief printing plate for printing colour line screens has the surfaces of the printing elements dished or channelled to prevent the lateral spreading of the ink. The channellings may be produced by applying a light sensitive coating to the plate b, for example of gum bichromate, exposing the plate under a negative having opaque lines f registering with and slightly narrower than the printing elements a, washing out the unexposed parts of the coating and etching lightly with acid.
Patent GB-1049294-A (GB)
Title: Improvements in or relating to uranous nitrate preparations
IPC: C01G43/00
Filed: 1964-04-06
Abstract: Uranous nitrate is made by electrolysis using as anolyte HNO3, and as catholyte uranyl nitrate solution in HNO3, and a little anti-oxidizing agent e.g. hydrazine, the two solutions being separated by a cationic membrane; the catholyte is drawn off when the uranous nitrate concentration is about half that of the original uranyl nitrate, and concentration of the latter is maintained during electrolysis at the starting level by continuously adding a solution of it in HNO3.  An apparatus is described in which both solutions are cooled, and in addition the anolyte is homogenized and freed from gases by blowing in air.
Patent GB-208480-A (GB)
Title: Improved method and means for regulating the degree of vacuum in x-ray tubes
IPC: H01J35/20
Filed: 1923-05-29
Abstract: 208,480. Jackson, Sir H., Philpot, A. J., and British Scientific Instrument Research Association. May 29, 1923. Addition to 182,195. R÷ntgen-ray tubes.-In means for automatically regulating the vacuum in R÷ntgen-ray tubes as described in the parent Specification, iron nitride is used as the nitrogen-evolving medium and granular aluminium as the nitrogen-absorbing medium. The nitride may be prepared by heating an iron wire E to a dull red heat in ammonia; which may be carried out with the wire in position in a chamber D communicating with the tube A and before sealing. Aluminium granules M are placed in a tube N with a restricted orifice, and are covered by a plug O of glass wool to impede the absorbing action.
Patent GB-119229-A (GB)
Title: Improvements in Processes for Producing Metallic Cerium and similar rare Earth Metals or Alloys thereof.
IPC: C25C3/34
Filed: 1918-09-02
Abstract: 119,229. Alpha Products Co., (Assignees of Hirsch, A., and Hirsch, M.). Sept. 1, 1917, [Convention date]. Drawings to Specification. Chlorides of cerium and other rare-earth metals. -Waste material obtained in the gas-mantle industry, consisting of the oxides or dissolved chlorides of cerium and other metals, may be employed m the electrolytic production of cerium alloyed with small quantities of lanthanum, didymium, erbium, thorium, &c. The oxides may be dissolved in hydrochloric acid, an excess of the oxides being used. Sulphur and phosphorus compounds may be removed by calcium or barium chloride, and chlorine carrying elements of dual valency, such as iron and aluminium, by cerium oxide. The proportion of impurity of each class should be reduced below 3 per cent. The solution may then be evaporated to dryness. Formation of oxychlorides is prevented by fusing the dry product in an atmosphere of hydrochloric acid gas, which may subsequently be dried for re-use or employed in dissolving cerium oxide or carbonate or the oxide waste above referred to.
Patent GB-694273-A (GB)
Title: Improvements in or relating to wick adjusting mechanism for burners
Inventor: IMBER JACK
IPC: F23D3/32
Filed: 1951-06-15
Abstract: 694,273. Wick burners. ALADDIN INDUSTRIES, Ltd. Jan. 16. 1952 [June 15, 1951], No. 14257/51. Class 75(i) A wick mounting for an annular wick of a blue flame burner comprises a bracket having means to engage the exterior of the wick at diametrically opposed points and a portion extending downwardly from said means and shaped so as partially to enclose and to be engaged by a wick adjusting pinion which is thereby prevented from importing lateral movements to the wick. The bracket is alternatively described as having members for making frictional engagement with means carried on the wick exterior and a channel-shaped component adapted substantially to enclose an adjusting pinion which engages slots formed in one wall of said component. Fig. 3 shows a bracket 18 having an upper semicircular portion providing curved arms 6 terminating in lugs 7 for engaging. in sockets 10, Fig. 2, carried by the wick 1, and a downwardly extending channel portion 11 adapted substantially to enclose a wick adjusting pinion 14 which engages slots 13 formed in one wall of the channel for raising and lowering the bracket 18 and the wick 1 without lateral displacement thereof. The wick may be of the construction described in Specification 694,274.
Patent GB-281546-A (GB)
Title: Improvements in or relating to paper feeding rolls for use in folding or like machines
IPC: B65H27/00
Filed: 1927-05-27
Abstract: 281,546. Canadian-American Machinery Co., Ltd., (Assignees of Dalton, R. S.). Dec. 20, 1926, [Convention date]. Sheet. - forwarders. - In paper-sheet working machines such as folding-machines, the knurls on the feeding rolls 13 are spiral or helicoidal in form. The spirals may be either right-handed or left-handed, but preferably are the same on both rolls, so that they intersect at the bite 12 of the rolls and form a number of gripping points.
Patent GB-167730-A (GB)
Title: Improvements in or relating to gas and like stoves
IPC: F24C3/08
Filed: 1920-04-06
Abstract: 167,730. Bohar, V. April 6, 1920. Air supply, regulating.-In gas-heated and like stoves of the type comprising a combustion chamber having burners arranged in it and an oven having double walls through which the combustion products pass, means are arranged on the burners for closing both the primary and secondary air supply openings to prevent the admission of cold air to the stove when the burners are not in use. In the arrangement shown, the end of the induction tube B<1> of the burner B projects through the wall A of the combustion chamber, and is provided with an air orifice U. Secondary air is supplied by a tube X, preferably cast in one with the burner. A sleeve R mounted on the end of the tube B' is rotated to close the opening U by means of a link S attached to an arm V on the gas-cock W. At the same time, the openimg X<1> of the tube X is covered by a plate T attached to the sleeve R. Specification 167,524 is referred to.
Patent GB-1216280-A (GB)
Title: Heat stabilisation of polyester resins
IPC: C08K5/526
Filed: 1969-03-19
Abstract: 1,216,280. Heat stabilized polyester. FMC CORP. 19 March, 1969 [25 April, 1968], No. 14421/69. Heading C3R. A heat stabilized polyester composition consists of a filament or film-forming thermoplastic polyester resin (e.g. polyethylene terephthalate) and 0À01% to 0À5%, by weight, based on the weight of the polyester resin, of tetraphenylethylene diphosphite.
Patent GB-128910-A (GB)
Title: An Improved Protractor.
Inventor: BERG ALBERT
IPC: G01C1/00
Filed: 1919-06-06
Abstract: 128,910. Berg, A. June 28, 1918, [Convention date]. Protractors. - A protractor T for use in connexion with a rectangular co-ordinate system has a graduated semicircular periphery, the readings of the graduations being half the angles which the peripheral a r c s subtend at the centre of the semicircle. The protractor is used by placing each end of the semicircular periphery on one of the co-ordinate axes P<x>, P<y>.
Patent GB-804761-A (GB)
Title: Thiophosphoric acid esters
IPC: C07F9/6518
Filed: 1956-05-09
Abstract: The invention comprises thiophosphoric acid ester of the general formula <FORM:0804761/IV (b)/1> in which R is alkyl, R1 and R2 together with the N atom form the radical of a cyclic dicarboxylic acid imide or of benzotriazole, and X is oxygen or sulphur.  They may be obtained by reacting N-(b -haloethyl)-cyclic dicarboxylic acid imides, or an N-(b -haloethyl)-benzotriazole with salts, e.g. the ammonium or alkali metal salts such as sodium and potassium salts, of dialkyl-thio or -dithiophosphoric acids or by reacting the free dialkyl-thio or -dithiophosphoric acids with the above mentioned N-(b -halogenethyl) compounds in the presence of a tertiary base such as pyridine, trimethyl (or triethyl) amine, or N-methyl piperidine.  The process may be carried out in the presence of an organic solvent, e.g. methanol, ethanol, or ketone, a hydrocarbon, a halogenated hydrocarbon, or dioxane.  Suitable reaction temperatures are 0 DEG to 150 DEG  C., preferably between 50 DEG  and 100 DEG  C.  Examples are given for the production of compounds in which each R is ethyl, oxygen or sulphur, and <FORM:0804761/IV (b)/2> forms the radical of succinimide, and benzotriazole respectively and in which each R is ethyl, X is sulphur and <FORM:0804761/IV (b)/3> is phthalimide, the N-(b -haloethyl) compound used in each case being the N-(b -bromoethyl) compound.  The products are stated to be useful as pest control agents.  Specification 781,471 is referred to.
Patent GB-202082-A (GB)
Title: Improvements in the method of and means for evaporating blood serum and other liquids
IPC: B01D1/14
Filed: 1922-05-23
Abstract: 202,082. Mills, M. W., and Ramsbottom, E. May 23, 1922. Bulk evaporators.-Blood serum and other liquids are evaporated on shallow trays g supported transversely across a chamber f in which air forced by a pump h through a tubular steam heater a is distributed by a horizontal trunk i, vertical pipes h, and nozzles i discharging between the trays. The air escapes through dampers k.
Patent GB-1376496-A (GB)
Title: Fasteners
IPC: F16B37/04
Filed: 1972-03-28
Abstract: 1376496 Screw sockets ILLINOIS TOOL WORKS Inc 28 March 1972 [29 March 1971] 14541/71 Heading F2H A one-piece plastics socket 20 for securing a screw 48 in an apertured panel 38 comprises a head 22 on one end of a hollow shank 26, a boss 42 under the head forming the base of the shank and providing an inclined abutment face, and diametrically opposite resilient arms 34 which extend from the leading end 24 of the shank towards the head 22 and, in their free state, flare outwards from the shank. The outer, screw-receiving portion of the shank bore is generally rhombic in cross-section. As the socket is pushed into the aperture, the arms 34 deflect inwards until, when the head 22 abuts the panel, the boss 42 fits into the aperture, the tips of the arms 34 abut the abutment face of the boss 42, and notches 44 at the ends of the arms 34 engage the rear edge of the aperture. When the screw shank 46 enters the socket, it expands the latter transversely to touch inner surfaces of the arms 34 to lock the socket in the aperture. The shank 26 is square in plan and the arms 34 may extend adjacent opposite corners (Fig. 10), or adjacent opposite sides (Fig. 2, not shown). A second panel 40 may be clamped by the screw 48.
Patent GB-1536846-A (GB)
Title: Vacuum residue disposal
IPC: F23G5/46
Filed: 1976-04-06
Abstract: 1536846 Oil-fired fluidized beds; boilers BRITISH PETROLEUM CO Ltd 6 April 1976 [9 April 1975] 14547/75 Headings F4B and F4A In a method of burning a vacuum residue (high viscocity waste oil) in a fluidized bed 1 of a boiler plant, the waste oil is introduced into the bed together with fluidizing air through a plurality of tubes 15 extending upwardly through a distributer plate arrangement, the excess air level in the bed being maintained at 5 to 20%. The bed material is a sulphur and metal retaining material such as a mixture of limestone and sand supplied from a hopper 9 through a tube 11. Air supplied to the tubes 15 from a plenum 18 causes waste oil supplied to each tube 15 from a common chamber 13 to climb up the inside wall and enter the bed through lateral holes 23 adjacent the blanked off upper end 16. The remainder of the fluidizing air required, together with fuel, e.g. propane, for bed start-up, are supplied to the bed through holes 24 in a tube 20 concentrically surrounding tube 15. Air enters each tube 20 through an inlet 22 and start up fuel through an inlet 21 which communicate with a common supply chamber 12. Boiler tubes 3 and tubes 25 for preheating part of the fluidizing air flow are immersed in the bed. The space 5 above the bed 1 has a row of inclined water tubes 7 extending thereacross and is surrounded by a water jacket 6. The combustion gases leaving the bed are cooled as they pass through a number of banks of heat exchange tubes 8.
Patent GB-238984-A (GB)
Title: Improved apparatus and process for recovering volatile solvents from vapour gas mixtures
IPC: B01D53/04
Filed: 1924-06-16
Abstract: 238,984. Ironside, E. A. June 16, 1924. Purifiers.-An apparatus for treating gaseous mixtures with adsorbents comprises a chamber a having a perforated plate c to support the material, a gas-inlet pipe d extending vertically from the bottom to near the top, a gas-outlet h near the bottom, and a series of separate heating or cooling coils 1 - - 5 arranged within the mass of absorbent material. A baffle e is fixed near the mouth of the pipe d to deflect the mixture downwardly, and loss of absorbent through the outlet h is prevented by a baffle i. The coils 1 - - 5 are connected to inlet and outlet headers f, g respectively and encircle the pipe d, the coils being preferably arranged equidistantly and in staggered relationship. In use, the mixture is introduced through the pipe d until the absorbent is saturated, after which steam is introduced through the same pipe and the absorbed constituents recovered.