baber/WOPTO huggingface dataset:
Patent GB-204039-A (GB)
Title: Improved method of giving to air and other gases a definite moisture content
IPC: B01F3/04
Filed: 1923-09-04
Abstract: 204,039. Obermiller, J. Sept. 16, 1922, [Convention date]. Addition to 202,993, [Class 55 (ii), Gas manufacture &c.]. Drying air and gases.-Air and other gases are given a definite moisture content by contact with a highly-concentrated solution of a salt &c., which is sprayed, or moved in a thin film, through the air &c. and again brought into contact with the. solid salt to restore concentration. Specification. 94/85 is referred to.
Patent GB-730599-A (GB)
Title: Production of carboxylic acid ester
IPC: C07C69/76
Filed: 1952-09-04
Abstract: Polyesters are prepared by adding chlorocarbonic esters of polyhydroxy compounds to a mixture of about the equivalent amount, with reference to the chlorocarbonic acid ester groups, of a polycarboxylic acid or of a salt thereof and up to about 1.7 per cent by weight, with reference to the amount of carboxylic acid used, of a tertiary amine or of finely divided copper, iron or palladium and heating the mixture at 90 DEG  to 160 DEG  C. until no more carbon dioxide escapes.  Aliphatic, cycloaliphatic, aromatic, araliphatic and heterocyclic poly-carboxylic acids may be used, e.g. oxalic, succinic, adipic, phthalic, hexahydrophthalic and terephthalic acids. The chloro carbonic acid esters may be of aliphatic, cycloaliphatic or aromatic polyhydroxy compounds such as glycerol, pentaerythritol, glycol and cyclohexanediols.  In an example, the bischlorocarbonic ester of 1 : 4-butanediol is added to a solution of sodium adipate using pyridine as catalyst at 100 DEG  C., the resulting polyester precipitating in the form of white flocks.ALSO:Carboxylic acid esters are prepared by adding chlorocarbonic acid esters of mono- or poly-hydroxy compounds to a mixture of about the equivalent amount, with reference to the chlorocarbonic acid ester groups, of a carboxylic acid or salt thereof and up to about 1.7 per cent by weight, with reference to the amount of carboxylic acid used, of a tertiary amine or of finely divided copper, iron or palladium and heating the reaction mixture to about 90 DEG  to 160 DEG  C. until no more carbon dioxide escapes; when the free acid is used, hydrogen chloride is also evolved. Reaction of chlorocarbonic esters of polyhydroxy compounds with poly-carboxylic acids yields polyesters (see Group IV (a)).  In examples: (1) 1 : 4 - butanediol - bis - chlorocarbonic acid ester is gradually added to hexahydrobenzoic acid at 90 DEG  C., the product being the bishydrobenzoic acid ester of the diol; the chlorocarbonates of glycerol, butane-triol and 1 : 6- or 2 : 5-hexanediol may be used similarly; (2) the chlorocarbonate of 4-chlorobutanol is likewise added to benzoic acid containing copper, yielding 4-chlorobutanol benzoate; chlorbenzoic acid, methoxy-benzoic acid and naphthoic acid may also be used; (3) sec.-butyl chlorocarbonate is added to acetic acid containing pyridine as in (1) to form sec.-butyl acetate; esters of stearic and montanic acids may be prepared in like manner; (4) n-butyl chlorocarbonate is added to aqueous sodium adipate containing pyridine at 100 DEG  C. yielding bis-n-butyl adipate; (5) chlorocarbonates of mixed C5-7 sec.- and tert.-alcohols are similarly reacted with aqueous sodium phthalate containing pyridine to yield a mixture of phthalic acid esters.  Many other reactants are mentioned, e.g. cyclopentane carboxylic acid, phenylacetic, isonicotinic, oxalic and terephthalic acids, and chlorocarbonates of methanol, glycol, cyclohexanol, pentaerythritol and phenol.
Patent GB-901107-A (GB)
Title: Therapeutic composition and method of preparing same
Inventor: GORDON PHILIP NEWTON
IPC: A61K31/65
Filed: 1959-06-29
Abstract: A therapeutic composition comprises a solution of at least one of the following antibiotic salts: magnesium, calcium or aluminium tetracycline salt or a magnesium, calcium aluminium or zinc oxytetracycline salt in one or more of the following polyhydric aliphatic alcohol solvents: glycerine, polyethylene glycol or propylene glycol, the molar ratio of metal to antibiotic being about 3 : 1 in the case of tetracycline and from 1 : 3 to 3 : 1 in the case of oxytetracycline and the pH of the solution being from 7 to 10. The metal tetracycline or oxtetracycline salts may be prepared in situ and mixed salts of two metals may be employed e.g. calcium, magnesium oxytetracycline or magnesium zinc oxtetracycline.  A non-toxic alkanol, e.g. sorbitol or ethanol may be added in an amount of up to 20% of the solutions.  The compositions are administered (a) intramuscularly or when diluted with water intravenously, (b) as otic or veterinary opthalmic solutions and in humans as otic solutions, mouthwashes or disinfectants, or (c) as salves or suppositories, using as a solvent a high molecular weight polyethylene glycol, e.g. the carbowaxes.  The compositions may contain additionally (a) antibiotics, e.g. streptomycin, polymixin B sulphate, carbomycin or oleandomycin, (b) steroid hormones, e.g. prednisolone, cortisone or hydrocortisone, (c) buffering agents and other stabilizers, e.g. ascorbic acid, triethanolamine, diethanolamine, sodium phosphite, sodium bisulphite and sodium formaldehyde sulphorylate, (d) colouring and flavouring agents, e.g. sodium cyclamate, sodium saccharin, sodium ascorbate, menthol, sodium sucaryl, saccharin, sulphosalicylic acid and benzocain.
Patent GB-1307111-A (GB)
Title: Screen printing plate and method of making same
IPC: B41M1/12
Filed: 1970-05-08
Abstract: 1307111 Screen printing plates LA LALA 8 May 1970 [12 May 1969] 22418/70 Heading G2M Serigraphic printing plates in which each opening in the screen is centred between the fibres forming the screen are prepared by (1) exposing a photographically sensitized layer to an image through the screen, (2) developing to form a dot image (3) exposing an emulsion on the screen through the developed image (4) removing the layer bearing the developed image and (5) washing away the unexposed areas of emulsion. The photo-sensitive surface may be placed adjacent, adhered to or coated on the screen and developed while in contact with or separate from the screen, and the emulsion may be applied or sensitized after step (2). The finished screens have circular openings of varying size.
Patent GB-1014976-A (GB)
Title: Improvements in ellipsographs
IPC: B43L11/04
Filed: 1963-06-06
Abstract: 1,014,976. Mathematical drawing-appliances. C. L. RUDDOCK, and K. E. RUDDOCK. June 4, 1964 [June 6, 1963], No. 22581/63. Heading B6P. An instrument for drawing ellipses comprises two legs 1 pivoted at 5 to a head-piece 3 having a handle 4, and a marker-mounting leg 2 attached to the head-piece by a pivot perpendicular to the pivots 5. A pencil lead is held in a collet 15 on an arm 11 articulated at 13 to an arm 7 pivoted at G to a slide 8 slidable and rotatable on the leg 2. All the components are arranged to be held by friction in their manually set relative positions. A stop screw 14 limits movement of the slide. The legs 1, 1, 2 have points 12 for engaging the paper to be drawn on. In operation, the arm 11 is maintained parallel to the leg 2. The instrument is pre-set by setting the distance between the point 10 of the pencil and the point 12 of the leg 2 to the radius of the minor axis with the leg 2 perpendicular to the paper and the point 10 on the paper, and subsequently adjusting the angle of inclination of the leg 2, while the point 10 and the point 12 of the leg 2 are aligned with a point midway between the points 12 of the legs 1, so that the distance, in the plane of the paper, between the point 10 and the point 12 of the leg 2 equals the radius of the major-axis.
Patent GB-1152002-A (GB)
Title: Improvements relating to Arc Welding
Inventor: NEEDHAM JAMES CHRISTOPHER
IPC: B23K9/09
Filed: 1965-05-27
Abstract: 1,152,002. Welding by fusion. WELDING INSTITUTE. 26 May, 1966 [27 May, 1965], No. 22618/65. Heading B3R. [Also in Division H2] In pulsed arc welding in which D.C. pulses are superimposed on a backbround current insufficient to achieve metal transfer and in which spray type metal transfer is achieved, the peak current is predetermined by reference to the pulse duration and the droplet transfer rates achieved by an unmodulated current or by pulses of square wave form. Thus the peak current lies between the steady currents required to produce on average a transfer of one or two droplets in a time equal to an arc pulse duration, or between the amplitudes of square wave pulses producing the same results. Using such current metal transfer is at the rate of one droplet per pulse. The position in the pulse at which the droplet transfers is determined by the current and preferably occurs as the pulse decays. If the current is lowered the droplet may transfer after the pulse terminates. Each droplet regarded as spherical has a diameter between half and twice the diameter of the electrode, the size of the droplets being mainly dependent on pulse frequency. The short rise in arc voltage occurring when a droplet transfers can be detected by an oscilloscope, photography or a detector circuit. In the latter, a self-biasing circuit including resistor R1, Fig. 1, and capacitor C1 with a time constant that follows the average arc voltage is connected with diodes D back biased by a resistor R4. Short peaks #V pass diodes D to a differentiating circuit C3, R3 to produce an output signal. A further biasing circuit R2, C2 eliminates response resulting from slower voltage changes. The signals may be used to provide a bright spot on an oscillogram of the arc voltage. If the bright spot is outside a required range, it may be detected by photo-electric means automatically arranged to correct the pulse peak current or the control may be manual. It is desirable that the changes of current and thus of electrode feed rate should correspond to changes in pulse frequency. Feed rate may be indicated by the frequency at which a mark 16, Fig. 3, associated with the feeding device passes a slot in a mask 15 to actuate a photo-electric cell 17. The resulting signals effect a control to open gates 20 in the phases of a 3-phase supply connected in parallel to the welding circuit. Thus by gating say every third pulse from one phase and every fourth pulse from another, pulses can be supplied at approximately the required average frequency. Current control may be effected by altering peak current, background current or by blocking the initial portion of a pulse. Reference is made to the welding of aluminium, mild steel and stainless steel using argon or argon, 2% oxygen. Reference has been directed by the Comptroller to Specification. 975,412.
Patent GB-673939-A (GB)
Title: Improvements in loud speakers
IPC: H04R31/00
Filed: 1948-08-27
Abstract: 673,939. Loud-speakers. MAGNAVOX (AUSTRALIA) PTY., Ltd. Aug. 27, 1948 [Aug. 27, 1947; Oct. 2, 1947], Nos. 22648/48 and 22649/48. Class 40 (iv). A moving - coil loud-speaker comprises two independent and detachable units, namely, a diaphragm unit and a magnetic unit which on assembly are located in operative relation by the top plate 14 of the magnetic unit and are locked together by a member 18 engaging both units. The diaphragm 12, coil former and spider 13 are correctly centred by a jig which fits accurately in the aperture in the floor of the diaphragm housing and the centre pole 17 of the magnetic unit is located by a non- magnetic ring 15 nesting in the under side of the top plate 14, the pole 17 being held to the bottom of the pot 16 by magnetic attraction. The units are located by shoulders 11E and 14A on the top and underside of the plate 14 and are locked by the ring 18, while the lower end bears against the upper side of the pot 16 and its upper end is provided with bayonet tongues 18A, which enter corresponding slots in the diaphragm casing. The units are locked by partial rotation. In a modification, Fig. 4, a short central pole-piece 17A standing on a cylindrical magnet 17B, positioned in a recess 16A in the pot base, is located by the non- magnetic ring 15 and the locking ring bayonet tongues engage slots 11G in a plate projecting from the main housing. In a further modification, Fig. 5 (not shown), the locking ring covers the whole of the magnet pot.
Patent GB-684022-A (GB)
Title: Method and means for separating inside a heavy liquid, solid bodies of different specific weights
IPC: B03B5/44
Filed: 1947-08-14
Abstract: 684,022. Gravity separation apparatus. MINES DOMINIALES DE PATASSE D'ALSACE. Aug. 14, 1947 [May 15, 1946; Feb. 21, 1947]. Nos. 22656/47 and 22658/47. [A Specification was laid open to inspection under Sect 91 of the Acts, Nov. 18, 1947], Class 46. [Also in Group II]. A suspension e.g. of barytes, magnetite or ferrosilicon in water or a salt solution, is fed from a settling tank A to a sink and float apparatus. The lighter part of the suspension passes over the overflow B and through channels 1, 2, 3 whereas the heavier part passes from the bottom of the settling tank through the channel F, casing G and channel 4.
Patent GB-1485361-A (GB)
Title: Structures
IPC: B29C48/12
Filed: 1974-08-05
Abstract: 1485361 Coated products P GOODWIN 5 Aug 1974 [14 May 1973] 22751/73 Heading B2E A multi-layer structure in longitudinal form comprises an outer enveloping layer of protective material and at least one inner strengthening member, the strengthening member having perforations such that during formation of the protective layer a continuity of protective material through the perforations to form a link between the enveloping layer on opposing sides of the member occurs the structure in transverse section comprising a part of relative thickness adjacent to a part of relative thickness adjacent to a part of relative thinness which latter part is formed substantially from the perforated strengthening member enveloped by the layer of protective material of thinness such that perforations of the strengthening member are indicated by corresponding indentations in at least one surface of the protective layer. The strengthening member may be in the form of a strip material which may be flat or contoured. More than one strengthening member may be used arranged in multi-layer form or in a series of adjacent or contiguous strips or any combination of these. The strengthening member may be in tubular form and more than one tube may be arranged concentrically, in layers, side by side or any combination of these. The strengthening member may be of any stiff or rigid material such as wood, plastics, metal, ceramic and glass ceramic. The structure may be obtained by extrusion of the protective material. In the figure a protective strip 1 comprises an outer layer 2 of resilient protective material with a perforated inner strengthening member 3. The strip has an outer facing protecting surface 4 and a rearward facing surface, 5. The outer facing is profiled to provide a longitudinal recess 6 with indentations 8 located therein and in which recess, screws (not shown) secure the strip to a surface may be inserted through the indentations in the surface, the member 3, the rear surface and thence into the surface to be protected.
Patent GB-1346936-A (GB)
Title: Method of removing corrosion-promoting substances from chlorinated hydrocarbons
IPC: C07C17/38
Filed: 1971-04-19
Abstract: 1346936 Purification of chlorohydrocarbons UDDEHOLMS AB 19 April 1971 [3 March 1970] 22756/71 Heading C2C. Corrosion-promoting substances are removed from a chlorinated hydrocarbon to be used for degreasing metals or in dry-cleaning with the help of a resinous anion-exchanger, the anionexchanger being treated with a substantially neutral aqueous solution of a non-corrosionpromoting anion, after which the anion-exchanger is dried to a water-content of less than 10% by weight and the chlorinated hydrocarbon is brought into contact with the anion-exchanger thus treated.
Patent GB-736073-A (GB)
Title: Improvements in glass compositions
Inventor: STANWORTH JOHN EDWIN
IPC: C03C3/23
Filed: 1951-10-01
Abstract: 736,073. Glass manufacture. BRITISH THOMSON-HOUSTON CO., Ltd. Sept. 30, 1952 [Oct. 1, 1951], No. 22824/51. Class 56. A tellurium containing glass having a high coefficient of thermal expansion, a high refractive index and dielectric strength and which transmits infra-red radiation freely consists of less than 10 per cent by weight of SiO 2 , at least 15 per cent by weight of TeO 2  and at least 5 per cent by weight of one or more of the following: LiO 2 , Na 2 O, CuO, BaO, PbO, MgO, CdO, B 2 O 3 , La 2 O 3'  Bi 2 O 3'  V 2 O 5 , P 3 O 5 , As 2 O 5 , Cb 2 O 5'  Ta 2 O 5'  TiO 2 , GeO 3 , ThO 2 , MnO 2 , SeO 2 , CeO 2 , MoO 3 , WO 3  and ZnF 2 . Clear tellurite glass is obtained by making the melt, for example of a batch of 100 grams of a mixture of TeO 2 -20 per cent and PbO-80 per cent in a silica crucible so that about 4 per cent of SiO 2  is introduced into the composition. Opaque, black tellurite glasses which transmit infra-red rays as freely as the clear glass are made by including sufficient of the oxides of copper or manganese in the compositions.
Patent GB-1352179-A (GB)
Title: Hydro-pneumatic suspension unit
IPC: F16F9/36
Filed: 1971-04-19
Abstract: 1352179 Hydropneumatic suspension units V LANGEN [trading as LAGEN & CO] 19 April 1971 [2 March 1970] 22826/71 Heading F2S A piston-and-cylinder hydro-pneumatic suspension unit comprises a chamber 14 in the cylinder communicating with an hydraulic accumulator having a compressed gas cushion 13, an annular chamber 8 between the piston-rod 3 and the cylinder, a channel(s) 19 in the piston and/or the rod connecting the chambers, and means 21 for keeping each channel closed for as long as the pressure in the chamber 14 exceeds that in the annular chamber 8. The piston can move on the rod between a stop 4 when holes 11 are covered and a stop 5 when they are uncovered enabling fluid under pressure in the chamber 8 to be relieved into the chamber 14. In a modification, the piston is fixed to its rod 16, Fig. 2, and the relief passages are formed in the piston and closed by a plate 20 engaged by a spring disc 21. In a further modification, a relief passage 24, Fig. 3, in the piston is closed by a ball 27.
Patent GB-499944-A (GB)
Title: Improvements relating to dental chairs
IPC: A61G15/10
Filed: 1938-08-02
Abstract: 499,944. Dental chairs. CREANGE & CIE. Aug. 2, 1938, No. 22867. Convention date, Aug. 2, 1937. [Class 52 (ii)] In a dental chair, the arm-rests 4 are connected to the back-rest 2, which is pivoted at 3, so as to move therewith. Preferably the arm-rest 4 is carried on a support which is longitudinally adjustable in a collar 7 on an extension 6 of the back-rest support.
Patent GB-151575-A (GB)
Title: An improved construction of seat, primarily intended to be employed with the fixed seating used in cinemas, theatres and the like
IPC: A47C7/26
Filed: 1920-01-22
Abstract: 151,575. Cornish, P. Jan. 22, 1920. Seat bottoms.-A chair seat comprises an upper part 2, a lower wood frame 1 with a groove 6 and bead 5, a covering 3, and a sheet metal plate 4, bent over at the edges to secure the cover 3 within the groove 6.
Patent GB-301945-A (GB)
Title: Improvements in or relating to spanners or wrenches
IPC: B25B13/12
Filed: 1927-09-01
Abstract: 301,945. Dorn, H. Sept. 1, 927. Sliding-jaw wrenches.-Relates to an adjustable wrench having a movable jaw 2, guided in a head 1 which carries, a fixed jaw 1<1>, and a handle 3 fulcrumed at 5, and consists in operating the jaw 2 bv a single cam 4, of the handle 3, so short that the wrench will not slip on the smallest sized nut and arranging the jaw 2 so that its ends are flush with the head when in the position of the minimum gap. The cam has involute faces 4<1> so that the line of contact 11, Fig. 3, is straight and the distance of this line from the fulcrum 5 is not more than about 1.2 times the radius of a circle circumscribing the smallest nut 13. Fig. 1, dealt with. The handle and cam have the same thickness as the guide 2<1>, Fig. 4, of the moving jaw and all are engaged by the side plates of the head. A spring 8 attached to the handle 3 and head 1 tends to close the wrench. When the jaw 2 is in its mid-position, Fig. 4, the gap is displaced, in the opening direction, relative to the notch 7.
Patent GB-698259-A (GB)
Title: Cycle handle-bar stems
Inventor: BARLOW JOHN RUPERT
IPC: B62K21/12
Filed: 1950-09-20
Abstract: 698,259. Making cycle fittings. WALTON & BROWN, Ltd. Oct. 31, 1951 [Sept. 20, 1950], No. 23043/50. Class 83 (ii). [Also in Group XXXI] A cycle handle-bar stem of the kind comprising a tube a attached to the steering tube of a cycle and a forwardly extending lug b adapted to carry the handle-bar is made from a pair of similarly shaped metal parts each part forming one half of the tube and lug, and the parts being united by welding or brazing along corresponding edges. The stem may be formed by dividing the metal sheet shown in Fig. 1 and welding the two parts together. Alternatively, two metal sheets may be welded together and then divided transversely to form a pair of similar stems. The tubular portion a of the stem is subsequently extended by a drawing operation and its upper end closed by bending the metal inwardly or by a separately formed cap. The handle-bars are received in the end part c of the lug b. The part c may be bent to form a tubular lug (Fig. 4) or the ends of the part c may be trimmed off and attached by welding to a split clip e (Fig. 6). The clip e may be produced by the method described in Specification 635,884.
Patent GB-1417670-A (GB)
IPC: C03B23/24
Filed: 1973-09-14
Abstract: 1417670 Double glazing units FLACHGLAS AG DELOG-DETAG 14 Sept 1973 [7 Oct 1972] 23073/75 Divided out of 1417298 Heading C1M Apparatus for fixing the distance between the individual panes of an all glass double glazing unit 14 during welding of the vertical longitudinal edges 12 thereof, comprises vertically extending elongate retaining members, such as thrust rods 44, 46; (48), 50, disposed in pairs adjacent the edges 12 on opposite sides of the unit 14, the rods 44, 46, 48, 50 being movable in a direction perpendicular to the plane of the unit 14 to bear against the outside of the panes. Preferably the rods 44-50 have suction strips, subjectable to a negative pressure in case the panes are inwardly bowed. The rods 44-50 are mounted on guide rods 36, 38, 40, 42 by vertically and horizontally adjustable supporting members 60, the rods 36-42 extending to the outside of the furnace where they are mounted in pairs on carriages 20, 22. The carriages 20, 22 are movable in guides 18, 16 and are driven to and from the plane of the units 14 by a spindle 24 mounted in bearings 26, 28 and engaging screw-threaded bushes 32, 30 in the carriages 20, 22.