baber/WOPTO huggingface dataset:
Patent GB-928183-A (GB)
Title: A process for the production of potassium dichloroisocyanurate
Filed: 1959-08-11
Abstract: Solid potassium dichloroisocyanurate is separated from the aqueous reaction mixture resulting from reacting potassium hydroxide and dichloroisocyanuric acid in an aqueous medium, the rate of addition of reactants being such as to ensure a pH 5-7,5 and a temperature 0 DEG -85 DEG C.  The acid may be used as an aqueous slurry of 50-85% solids, and the KOH as an aqueous solution containing 10-90 parts KOH per 100 parts H2O.  The reactants may be directly mixed, or added to water, or an aqueous solution or slurry of potassium dichloroisocyanurate.  When the reaction is effected at above 56 DEG C., the product is Form I anhydrous potassium dichloroisocyanurate having monoclinic internal and external symmetry.  At below 52 DEG C. the product is the monohydrate which is dried to Form II anhydrous potassium dichloroisocyanurate, which has monoclinic internal and triclinic external symmetry.  At between 52 DEG  and 56 DEG C. the product is a mixture of Form I anhydrous and the monohydrate, from which a mixture of Forms I and II anhydrous salts results.  After separation of the solid salt, the mother liquor may be concentrated under subatmospheric pressure at 25 DEG -50 DEG C., and recycled for re-use as reaction medium. The Form I anhydrous salt may be converted to Form II by dissolving Form I salt in water, crystallizing the monohydrate at below 52 DEG C., and dehydrating to Form II potassium dichloroisocyanurate.  Specification 902,764 is referred to. Reference has been directed by the Comptroller to Specification 849,907.
Patent GB-1195705-A (GB)
Title: Improvements in Fully Fashioned Straight Bar Knitting Machines
Inventor: WEST ERNEST
IPC: B23Q15/24
Filed: 1967-06-14
Abstract: 1,195,705. Knitting machines. S. A. MONK (SUTTON-IN-ASHFIELD) Ltd. 10 June, 1968 [14 June, 1967], No. 27406/67. Heading D1C. [Also in Division G3] A fully fashioned straight bar knitting machine has selvedge controls which are adjustable in response to the movement of a member under the control of a light-sensitive device co-operating with a light-effecting member. As shown, an axially displaceable nut housing 2 is mounted on a L.H. selvedge control screw 1 of a fully-fashioned straight bar knitting machine. The screw is rotated through a chain 16 and sprockets 14, 15 and an electro-magnetic clutch 13 by an electric motor 12. The nut housing 2 carries a bracket 3 controlling a narrowing rail 4 in a conventional manner; the narrowing rail is fitted with fashioning boxes, not shown, located at the relevant selvedges of garment blanks being knitted. A bracket 6 is also mounted on the nut housing 2 and carries an axially adjustable rod 7 bearing at the remote end a yarn carrier drive mechanism, not shown. An electrical pre-setting system co-operating with the rod 7 enables the machine to knit in any desired sequence the fronts, backs and pairs of sleeve blanks for making up into a set of garments equivalent in number to the number of knitting divisions of the machine. Each selvedge control screw 1 has mounted on its adjustable rod 7 four photo-cells 11 each of which co-operates with a pair of light intercepting plates 20 on a width setting block 19 slidable on a horizontal calibrated rule 18 mounted on a fixed part of the machine. Each of the pair of plates is operative for one direction of travel of the rod 7. A switch MS is manually, or automatically operated from some convenient source on the machine when a resetting operation is required and affects the stepping of a photocell selector, not shown. The direction of movement is set for each rule 18 in accordance with a desired programme, by switches S1-S4. The appropriate plate 20 intercepts the light beam to the selected photo-cell, the outputs of which controls the drive motor 12 through relays or solid state circuitry to stop the screw 1 in a reset position preparatory to the commencement of the next phase of a knitting cycle.
Patent GB-401092-A (GB)
Title: Improvements in and relating to folding boxes
IPC: B65D5/36
Filed: 1932-10-03
Abstract: 401,092. Cardboard &c. boxes. CRETS, J. J. C. G., 174, Malakkastraat, The Hague. Oct. 3, 1932, No. 27438. [Class 18.] A single-wall folding box of paper, thin cardboard, &c. for cakes, chocolates, sweetmeats, margarine packets, &c. of the type in which the lower part and the cover form one integral unit and which are formed so that they can be easily collapsed without disjointing has, at a short distance from and parallel to the normal folding line 6 of the lid a second folding line 7 such that the cover may hinge about both folding lines. In one form the box is made from the blank shown in Fig. 1 and folded to the form shown in Fig. 2. In the alternative construction shown in Figs. 3 and 4 additional flaps 9 with or without end flaps 9a are secured to the sides 4 by glue, nails, &c. and the flaps 5 in the front and back walls of the body are secured to the ends 4 by glue &c. only over the cross-hatched parts 14, to facilitate folding. When the sides 4 have folding lines the flaps 9 may be secured only within the area defined by the folding lines. In a further modification shown in Fig. 7 the corners 15 are creased at 17 and tongues 16 disposed on the outside of the body engage under the triangular flaps formed by folding at the lines 17.
Patent GB-1448946-A (GB)
Title: Gas laser
IPC: H01S3/0973
Filed: 1974-06-20
Abstract: 1448946 Lasers COMPAGNIE GENERALE D'ELECTRICITE 20 June 1974 [22 June 1973] 27497/74 Heading H1C In a gas laser in which an electrical pumping pulse is propagated along a transmission line 1, 2, 3 from a focus F as a plane wave by forming a line end with a parabolic contour, and in which the electrical pulse progressively excites along its length a column of laser gas contained in a line slot 6 inclined at an angle α with respect to the propagated wave front 21, spurious voltage peaks in the transmitted pulse are absorbed before reaching the slot by providing a secondary discharge line cavity 15 containing a suitable dielectric fluid which may be either static or flowing. The transmission line is formed by conductive plates 2, 3 and an insulating layer 1, and includes an arcuate slot 10 which directs an electrical pulse introduced by a source 5 at the focus F towards the parabolic reflective end. The slot 6 is closed by a strip 9 and by windows (not shown).
Patent GB-263755-A (GB)
Title: Method of increasing the strength or hardness at elevated temperatures of magnesium or magnesium alloys
IPC: C22C23/06
Filed: 1926-11-04
Abstract: 263,755. I. G. Farbenindustrie Akt.- Ges. Dec. 24, 1925, [Convention date]. Void [Published under Sect. 91 of the Acts]. Alloys.-Magnesium and magnesium alloys are hardened by the addition of up to about 32 per cent of cerium or cerium metals. Examples contain (1) 20 per cent of cerium; (2) 6 per cent of cerium and 20 per cent of aluminium. The alloys may be used for making pistons for internal-combustion engines.
Patent GB-712056-A (GB)
Title: Processes for converting mercaptans present in gasoline and kerosine into disulphides
Inventor: NOBLE JACOBUS WILHELMUS LE
IPC: C10G27/04
Filed: 1951-11-28
Abstract: Mercaptans in gasoline or kerosine are converted into disulphides by intimately contacting with aqueous alkali hydroxide at not more than 60, preferably 30-40 DEG C., in the presence of oxygen but without the addition of oxidation catalysts or contact-promoting substances, at least the theoretical quantity of oxygen for conversion of the mercaptans being present and the volume of the alkali solution being insufficient to dissolve said theoretical quantity, said intimate contacting being effected by mechanical means and being such that the gasoline or kerosine is negative to the doctor test within one hour. A centrifuge, particularly a turbo-mixer, the fan of which rotates at a peripheral speed of at least 5 preferably 8-15 m./sec. or a colloid, for example a Hurrell mill, may be used.  Alternatively, the oil and alkali may be sprayed one into the other at high pressure. The treatment time is generally 10-30 mins.  Air or oxygen may be dissolved in the oil before or during contact with the alkali but oil in equilibrium with the atmosphere generally contains sufficient oxygen.  The disulphides formed pass into the oil and where oils contain .05 per cent. or more of mercaptan sulphur, the greater part may first be removed by known methods. Caustic soda or potash of 5 N or higher is preferred, and solutilisers promoting the solubility of mercaptans may be dissolved therein, generally equivalent to 1-50 per cent. by weight.  These include alkylene diamines and alkanolamines, glycols. amino-glycols, di-amino-alcohols, di-amino, di-hydroxy or aminohydroxy-di-alkyl ethers or thioethers, and alkali metal salts of fatty acids, hydroxy or amino-fatty acids, phenyl acetic acid or hydroxy- or amino-phenyl acetic acids or alkylphenols. Where oils containing unsaturateds are treated, such as cracked or reformed gasoline, an anti-oxidant, for example .0001-.01 by weight of an arylamine or alkylphenol, is added.  The alkali after separation from the treated oil, is re-used.  Examples describe the treatment of synthetic, reformed, and straight run gasolines using 7 N NaoH and air, xylanol being used as a solutiser in one case.
Patent GB-1348209-A (GB)
Title: Tin complexes
IPC: C07F7/22
Filed: 1972-06-15
Abstract: 1348209 Organotin complexes CELANESE CORP 15 June 1972 [28 June 1971] 27975/72 Heading C2J [Also in Division C3] A complex of a Lewis acid and an organic tin compound having at least one direct tin-oxygen or tin-sulphur bond is prepared by reacting the Lewis acid and tin compound at at least 40‹ C., optionally in the presence of a solvent such as methylene chloride or chloroform. As the organic tin compound, a number of dialkyltin esters, thioesters and substituted esters of mono- and di-carboxylic acids are specified and also trimethyl tin acetate, tri-n-butyltin acetate, di-n-butyltin oxide and sulphide, bis-(tri-nbutyltin) oxide and sulphide, the following stannous compounds: formate, acetate, propionate, butyrate, octoate, laurate, stearate, benzoate and mercaptide; and a compound of divalent tin with 2,6-di-tert.-butyl-phenol or -thiophenol. The Lewis acid may be BF 3 , SbF 3 , antimony fluoroborate, BiF 3 , BiOF, NiF 2 , AlF 3 , TiF 4 , MnF 2 , MnF 3 , HgF 2 , AgF, ZnF 2 , NH 4 F.HF, PF 5 , HF, PCl 3 , TiCl 4 , FeCl 3 , ZrCl 4 , AlCl 3 , SnCl 4 , SnCl 2  or a co-ordination complex of BF 3  with an organic compound. In the example, the complex of BF 3  and dibutyltin dilaurate is prepared.
Patent GB-827389-A (GB)
Title: Method of preparing emulsions of polymers of ethylenically unsaturated monomers
IPC: C08F265/02
Filed: 1956-09-13
Abstract: Stable aqueous emulsions of polymers of ethylenically unsaturated monomers are prepared by heating the monomers, having solubilities in water not exceeding 5% by weight, in aqueous solutions of water-soluble salts of acrylic or methacrylic acids in the presence of peroxy compounds, said solutions containing 1 to 3% of the salts based on the weight of monomers.  The monomers may be vinyl or allyl esters, e.g. vinyl acetate, or esters of acrylic, methacrylic, crotonic vinylacetic or allylacetic acids, e.g. methyl acrylate.  The salts may be ammonium or alkali metal salts, e.g. sodium acrylate. Specified peroxy compounds are hydrogen peroxide, alkali metal and ammonium persulphates, e.g. potassium persulphate, and organic peroxides.  Redox systems may be used.
Patent GB-1023973-A (GB)
Title: Improvements in or relating to full-fashioned knitting,knitting machines and knittedgarment blanks and articles
IPC: D04B/
Filed: 1962-07-20
Abstract: 1,023,973. Knitting. ETABLISSEMENTS SIMON S.A. July 20,1962 [July 22,1961; July 5, 1962], No. 28071/62. Headings D1C and D1K. [Also in Division A3]. Men's pants are fashioned on a straight-bar machine to produce a front pouch, Fig. 6, not shown. This is achieved by causing two outer groups a, b and b1, a<SP>1</SP> of needles to hold their loops without knitting whilst continuing to knit on the central group b, b<SP>1</SP> of needles. The number of needles knitting in the central groups is gradually increased and then decreased as diagrammatically illustrated in Fig. 1. Subsequently all of the needles resume knitting. The widening and narrowing effect of the central group of needles can be effected a second time in succession before recommencing knitting. The machine has the normal presser mechanism modified during the fashioning of the pouch so that the needles are not caused to press and thereby fail to knit. The central needles are caused to press and knit by the action of auxiliary presser mechanism comprising two presser plates 101,102, Fig. 4 not shown, which bear on the backs of the needles and press them so that their heads engage the usual presser edge. The plates 101,102 are capable of being moved in an overlapping disposition such that the number of needles affected can be increased and decreased.
Patent GB-934594-A (GB)
Title: Sliding track arrangement for doors, windows, and the like
IPC: E06B3/46
Filed: 1960-03-10
Abstract: 934,594. Sliding tracks for doors or windows. W. F. COWDERY. March 9, 1961 [March 10, 1960], No. 28116/61. Divided out of 934,593. Class 20 (3). A sliding track arrangement for hanging sliding windows or doors as in Specification 934,593, comprises C-section rails 17, 18 secured back-to-back on a T-girder 8 and carrying C-section runners 19, 20 of the same length. A wheel 24 mounted at one end of each rail supports the runner in combination with a wheel 25 in each runner which projects through slots 26 in the runner. A stop (not shown) is provided to prevent too close approach of the wheels.
Patent GB-242675-A (GB)
IPC: A61C1/18
Filed: 1925-11-10
Abstract: 242,675. K÷link, G., (trading as Becker, C. L. [Firm of]). Nov. 10, 1924, [Convention date]. Dental engines. - In an angle hand-piece for a dental engine the externally screw - threaded socket or bearing sleeve h for the tool spindle. a is adjustable in the head f of the casing and is locked in position by means of a lock-nut i instead of having a fixed shoulder engaging the face of the head as heretofore. The bearing surfaces e, g of the spindle a are of conical form so that adjustment of the sleeve h may take up both axial and radial slackness. Specification 238,248 is referred to.
Patent GB-776516-A (GB)
Title: Static electrical code translating apparatus
Inventor: BRANCH MAURICE CHARLES
IPC: H04Q3/42
Filed: 1955-10-05
Abstract: 776,516. Automatic exchange systems. STANDARD TELEPHONES & CABLES, Ltd. Oct. 5, 1955, No. 28332/55. Addition to 753,357. Class 40 (4). In a code translating apparatus of the magnetic ring and threaded jumper wire type the operation of a device at one end of the wire enables the application of an operating potential to a device at the other end of the wire, so causing a small current to flow in the wire and subsequently a large increase in the current through the wire is produced to pulse the output winding of the magnetic ring. As shown, the jumper determining the code is connected between the anode of a gas valve such as T1 ... T3 and the cathode of a gas valve such as TO1 ... TO4 over a rectifier X1, the trigger electrodes (say of TO1 and T1) being primed in accordance with the code to be translated. When a start potential is applied to lead ST, VI conducts to cut off V2 which conducts again after 1¢ ms. determined by C1, R5. Conduction of V2 cuts off V3 which conducts again in a similar manner after 1¢ ms. When V2 cuts off the anode current of V4 rises steadily under control of circuit C3, R8 and the potential of lead A rises correspondingly. When V3 cuts off, power valve V5 draws heavy current to cause the potential of lead A to rise rapidly. When the potential of lead A (under the influence of V4) reaches the striking potential of TO1 the latter fires and the rise in cathode potential is applied to lead D where it operates on the grid of the cathode follower V7, the resulting rise in cathode potential causing the potential on lead C to rise, so maintaining the rectifier X1 back-biased. The rise in cathode potential of V7 is further communicated to lead B via cathode follower V6. When the potential of lead C reaches a sufficient value T1 strikes and its anode potential drops to cause X1 to conduct and a small current (limited by the anode resistor of V4) to pass through the jumper. Later, when the potential of lead A rises rapidly under the influence of V5 a large current passes through lead A and consequently through the jumper to produce the requisite output pulse. Shortly afterwards V5 and V4 cut off and the current in lead A and the jumper cease. The current in lead A is restricted by a limiter connector to the left-hand winding of transformer TR1. Since with this arrangement the potentials of leads D and C always rise and fall in a similar manner, spurious outputs due to the capacities of rectifiers X1 in other jumpers are avoided.
Patent GB-319247-A (GB)
Title: Manufacture of azo-dyestuffs
IPC: C09B29/20
Filed: 1929-09-18
Abstract: 319,247. I. G. Farbenindustrie, Akt.- Ges. Sept. 18, 1928, [Convention date]. Azo dyes.-Azo dyes are made in substance or on a substratum, by coupling a diazotized 5- halceon-2-amino-1-benzoic acid-alkyl-ester with a naphthylamide of 2: 3-oxynaphthoic acid. In examples (1) the alpha- or #-naphthylamide and diazctized 5-chloro- or 5-bromo-2-aminobenzoic acid-methyl ester are specified; (2) the dyestuff from the #-naphthylamide and diazotized 5- chloro-2-aminobenzoic acid-methyl ester is made in substance and used in paste form for lake formation. The ethyl-, propyl-, and butyl esters may be used. Reference has been directed by the Comptroller to Specifications 6379/12 and 17279/13.
Patent GB-1109112-A (GB)
Title: Improvements in ventilators
IPC: F24F13/14
Filed: 1963-07-18
Abstract: 1,109,112. Ventilators. G. E. ANDERSON. 19 Oct., 1964 [18 July, 1963], No. 28439/63. Heading F4V. A ventilator flap 12 is operated by a mechanism that allows the flap to be locked in angular positions, including the closed position. The mechanism includes operating cords 22 that initially moves a carrier plate 21 to disengage pawls 23 coacting with teeth on a cam plate 19 before moving the cam plate 19 and hence the flap 12. In another embodiment (Fig. 3, not shown) the cam plate 19 is locked by two ratchet devices (230) coacting with teeth on the triangular shaped cam plate, the ratchet devices being disengaged by further cam plates (210) operated by depending cords which when released allows the ratchet to engage the teeth in the triangular cam plate and lock the flap 12 in any position.
Patent GB-521684-A (GB)
Title: Improvements relating to the driving of piles
IPC: E02D5/50
Filed: 1939-03-02
Abstract: 521,684. Concrete piles. RICHES, H. G. G. G. March 2, 1939. No. 28454. Divided out of 521,681. [Class 68 (ii)] A precast concrete pile 1 is centred by projections 31 within the metal tube 15 which is previously driven into the ground to form a socket and is subsequently withdrawn. The space between the pile 1 and the ground is filled with grout which h is bonded to the pile by the projections. An anticorrosive coating may be provided. Specifications 521,644, 521,683 and 521,685 are referred to.
Patent GB-939659-A (GB)
Title: Improvements in or relating to refrigeration plants with flooded evaporators
IPC: F25B41/06
Filed: 1960-08-17
Abstract: 939,659. Refrigerating. ATLAS A. S. Aug. 17, 1960 [Aug. 17, 1959], No. 28470/60. Class 29. In a compression system having a flooded evaporator 1 to which liquid refrigerant is fed at the lowest point from pipe 5 through regulating valve 6, the valve is controlled in dependence on the amount of liquid refrigerant which passes through downcomer 2 in unit time from the separator 3 to the lowest point of the evaporator. As shown in Fig. 2, an open-topped chamber 11 extends into the path of the liquid passing down pipe 2 and has a bottom orifice 12. Within the chamber is an electricallyheated thermal bulb 13 connected by tube 8 to the valve 6. If the load on the evaporator falls, less refrigerant is evaporated and hence more liquid falls into the chamber 11 where it builds up. When it contacts bulb 13, it cools the bulb and valve 6 is moved to closed position to reduce the refrigerant supply. A grid 16 closes the top of the chamber and a shield 15 prevents falling liquid from impinging directly on bulb 13. The heater of bulb 13 may be controlled in accordance with the load on the system.
Patent GB-1440629-A (GB)
Title: Control circuits for the continuous adjustment of the speed of  a direct current motor
IPC: H02P7/291
Filed: 1973-06-15
Abstract: 1440629 Automatic control of speed ROBERT BOSCH GmbH 15 June 1973 [19 June 1972] 28520/73 Addition to 1371854 Heading G3R [Also in Division H2]  The control circuit for the stepless adjustment of the speed of a D.C. motor disclosed in Fig. 2 of Specification 1371854 is modified as shown in Fig. 3, wherein the motor 11 is supplied through a main transistor 13 and storage inductance 12, the transistor 13 being controlled by a transistor 18 of complementary conductivity type receiving a signal representative of a desired speed from a potentiometer 21, the two transistors being interconnected by a feedback resistor 19, the emitter of transistor 18 being connected to one armature terminal of the motor through resistor 22 and capacitor 27 and to the other armature terminal through at least one diode 23, and members 13, 18 and 19 forming a trigger stage which is switched on and off as a function of the voltage at one end of the inductance 12 connected to the other armature terminal. Compared with Fig. 2 of Specification 1371854 (which is again described in Fig. 2, (not shown), of the present Specification), energy fed to the motor during the off-periods of transistor 13 is supplied only by the inductance 12, the capacitor 27 being substantially smaller than the capacitor (17) of Fig. 2 (not shown) and serving to smooth the signal fed to the emitter of transistor 18, whose emitter resistor 22 has a high resistance compared to that of the motor 11, which operates with a higher power input. The capacitor idle current is also reduced. When the motor is used to drive a blower or windscreen wipers of a vehicle, as envisaged in the Parent Specification 1371854 the potentiometer 21 may be respectively replaced by a variable gain amplifier or a resistor variable in stages.
Patent GB-223418-A (GB)
Title: Process of and apparatus for the conditioning of textile materials
IPC: D01G99/00
Filed: 1923-11-13
Abstract: 223,418. Brandwood, J. Nov. 13, 1923. Gases and vapours, treating with.-Textile material in loose or unwound form, or in compact wound form such as cheeses and the like or hanks, is conditioned by subjecting it when placed on a permeable support to the action of air, which is passed through a moistened fabric and directly through the material by pressure or a vacuum. As shown in Fig. 1, cops 41 are conveyed by belts 23, 27 travelling at the same linear speed, the upper fabric belt 27 passing a.round a roller 19 in a liquid container beneath rollers 20, 21, and the lower belt closing a vacuum box 32 which is exhausted by a suitable pump. Superfluous liquid is removed from the belt 27 by an adjustably weighted roller 40. The lower band may consist of metal links and be provided with a driving-chain on each lateral edge, and the rollers 20, 21 may be enclosed in a pressure box. Separate batches of material may be treated in apparatus shown in Fig. 4, comprising a vacuum trough 32 provided with a permeable tray or series of trays 59 upon which the material is placed and with a cover 60 which is formed to receive liquid absorbent fabric. In both arrangements a pressure box may be used with or without the vacuum trough.