baber/WOPTO huggingface dataset:
Patent GB-836285-A (GB)
Title: Antifogging agents for light-sensitive paper emulsions
IPC: C07D249/14
Filed: 1958-01-29
Abstract: An N:N1-disulphonic derivative of 3:5diureido - 1;2;4 - triazole is prepared by reacting the latter with chlorosulphonic acid in the presence of pyridine or triethylamine.
Patent GB-211135-A (GB)
Title: Improvements in two-way transmission systems with repeaters, particularly for telephone lines
IPC: H04B3/20
Filed: 1924-02-06
Abstract: 211,135. Western Electric Co., Ltd., (Assignees of Johnson, E. D.). Feb. 7, 1923, [Convention date]. Relays, contact-making.-In a telephonic repeater system, the leads 11, 12 feed a rectifying valve 18 through an amplifying valve 21 and a high-pass filter 19, and the rectifier 18 is connected to a relay 17 through a low-pass filter 23. The two filters each have a cut-off frequency of about 500, and serve to prevent chattering due to currents of the resonant frequency of the relay armature, and to prevent operation by extraneous line currents of low frequency. The normally operative relay 15 de-energizes quickly, but is rendered slow to energize by means of a slowacting relay 24 which energizes to open a further point in the circuit of the relay 15 when the relay 17 operates, and the time lag is adjusted to be greater than the time required for the propagation of currents from the leads 11, 12 to the end of the four-wire line and back to the leads 13, 14.
Patent GB-702919-A (GB)
Title: Improvements in or relating to fire preventing or extinguishing devices
IPC: A62C8/00
Filed: 1951-02-09
Abstract: 702,919. Fire-extinguishing. GRAVINER MANUFACTURING CO., Ltd., WILKINSON SWORD CO., Ltd., and MATH1SEN, A. Jan. 18, 1952 (Feb. 9, 1951], No. 3185/51. Class 47. In means for extinguishing fires in which a container for an extinguishing medium is provided with a frangible wall which is broken by an explosive charge, the frangible wall 2 includes a hemispherical portion of thermosetting or thermoplastic material at the centre of which the charge 10 is supported in a fitting 8 carried by a back plate 5 to which the wall 2 is secured by a metal ring 4. The wall 2 and plate 5 are of laminated plastic-impregnated fabric. The detonator 9 is provided with electric leads 17 and may be operated by a hand switch or by an impact switch in the case of an aircraft.
Patent GB-646078-A (GB)
Title: Improvements in indication and control of constituent-potentials
IPC: C23C8/06
Filed: 1948-02-03
Abstract: 646,078. Degree of carburization. LEEDS & NORTHRUP CO. Feb. 3, 1948, No. 3186. Convention date, May 30, 1945. [Class 38 (iv)] [Also in Groups II, XXXVI and XXXVIII] Apparatus for measuring and controlling the degree of carburization of ferrous material comprises a metal filament subjected to the same temperature and atmosphere as the work, and means for determining the change in resistance of the filament, which is indicative of the degree of carburization. An element 30 containing the metal filament 31, Fig. 2, is suspended in the furnace C, Fig. 1, and consti. tutes one arm of a Wheatstone bridge W being balanced by an element 40 with the same temperature coefficient, also in the furnace but shielded from the carburizing atmosphere, a predetermined difference in resistance between elements 30 and 40 being determined by the position of the contact 56 of a slide-wire 48 on the bridge W, the attainment of this condition being indicated by the lack of unbalance current through a galvanometer 54, any unbalance current operating relay to control the flow of carburizing medium through valve 21. In a modified circuit, Fig. 3, the automatic compensation for temperature-resistance changes is afforded by thermocouple 66, operating through a detecting instrument 65 and relay to introduce a connection into the bridge circuit by mechanically effecting the position of contact 70 on slide-wire 69, thus compensating for temperature-resistances changes in element 31. The thermocouple 66 and associated circuit may also be used to control the temperature of the furnace. The apparatus may also be applied to control and measure similar processes such as nitriding. Transmitter.-The resistance element 30 comprises a metal wire 31, Fig. 2, threaded through two holes in a ceramic former 33 which has a series of openings 35 to expose the wire to the atmosphere. In another form, Fig. 4, the wire 31 is wound on an oval cross-sectioned former 84 supported between a fixed contact plug 104 at the lower end, and a spring-loaded plug 100 at the upper end, inside a tubular housing 80 of chrome-nickel alloy, with openings 81, 82 to expose the wire 31 to the carburizing atmosphere. The wire-wound former 84 is thus separately replaceable.
Patent GB-1384051-A (GB)
Title: Preparation of an enzyme product
IPC: C12N9/24
Filed: 1971-01-26
Abstract: 1384051 Endo-beta-glucanase NOVO TERAPEUTISK LABORATORIUM AS 18 Jan 1972 [26 Jan 1971] 3232/71 Headings C3H and C3U [Also in Division C6] Endo-beta-glucanase is obtained by aerobic cultivation of Bacillus pumilus on a conventional nutrient medium and then isolating the enzyme for example by treating the purified and/or concentrated broth with salts for example sodium or ammonium sulphate or with a watermiscible solvent for example acetone or ethanol followed by drying the precipitated enzyme preferably by spray- or freeze-drying. The enzyme is used as a viscosity-reducing agent in brewer's wort. Strains of Bacillus pumilus exemplified:-A.T.C.C. Nos. 6632; 12,140; 98; 70; 72; 71; 6,631; 945; 4,520; 14,884; 15,477; 18; 1; 4,522 and NCIB Nos. 7,576, 8,982, 8,600, 8,738.  Beta glucan is obtained from an aqueous extract of milled barley, destarched by treatment with bacterial amylase containing no betaglucanase activity, precipitation with acetone, redissolution in water and then re-precipitation with 30% ammonium sulphate. The preparation is then exhaustively dialyzed against distilled water and freeze-dried.
Patent GB-103719-A (GB)
Title: Improvements in and relating to Electric Switches.
IPC: H01H19/10
Filed: 1916-03-04
Abstract: 103,719. Midgley, A. H., and Vanderveil & Co., C. A. March 1, 1916. Switches; contacts; handles.-The bridge-piece of a rotary electric switch comprises laminated disks g cut radially and bent down to form contact members. The disks g are mounted between insualting-washers f, h on a pivot d, which is secured in a pivot plate c attached to the insulated base b carrying the fixed contact q. A metal plate e is interposed between the washer f and the plate c. A stop-plate i with projecting lugs and a detent plate i provided with recesses in its upper face are mounted above the disk h. The series of plates and disks j, i, h, g, f, e are connected so as to be rotatable as a whole about the pivot by the movement of a handle n, which is operatively connected through a sleeve k with the detent plate j. The handle is held on the pivot d by a head screw o, a washer p secured against rotation being interposed between the screw and the handle. A detent catch l pressed down bv a spring m is provided with lugs which project through apertures in a lug a<2> extending from the metal face-plate a of the switch. During the rotation of the switch, the catch l is forced out of the detents in the plate against the pressure of the spring m, and the contact members g of the bridge-piece are thus pressed more closely against the fixed contacts q.
Patent GB-360288-A (GB)
Title: Improvements in and relating to a rectifier system for feeding electric arc furnacesfrom alternating current
IPC: H02M7/06
Filed: 1931-02-02
Abstract: 360,288. Supply and conversion systems; transformers. AKT.-GES. BROWN, BOVERI, ET CIE, Baden, Switzerland. Feb. 2, 1931, No. 3327. Convention date, Feb. 1, 1930. [Classes 38 (ii) and 38 (iv).] To avoid flame arc furnaces interfering with one another when being operated from a common transformer c through rectifiers b<1>, b2, the transformer has a number of secondary windings d<1>, d<2> corresponding to the number of furnaces a<1>, a<2> being supplied and these windings are subdivided and arranged on the core intermeshed. Further, in each furnace circuit the connections from the ends of the secondary winding to the anodes of the rectifier are through choking coils e<1> which are so interlinked that the successive half waves of opposite phase of the current magnetize their common iron core in the opposite sense. These chokes are so designed that should one furnace short-circuit they can absorb the full voltage of the secondary winding. A choke g is included in the primary circuit to stabilize the operations. A single rectifier having a suitable number of anodes may be used.
Patent GB-607407-A (GB)
Title: Improvements in or relating to standard lamps
IPC: F21V33/00
Filed: 1946-02-01
Abstract: 607,407. Standard lamps. FRANCOBRITISH ELECTRICAL CO., Ltd., and BRACKENSEY, A. H. Feb. 1, 1946, No. 3329. [Classes 75(ii) and 75(iii)] [Also in Groups XIV and XVIII] The shade 5 and base 1 of a standard lamp suitable for mounting on a narrow mantel shelf have plane surfaces in the region of the axis of the standard member 2 so that they can fit closely against a wall. The lamp holder may project forwardly and a frame containing a mirror may be arranged behind the lamp so as to give the appearance of a complete lamp. The base may be fitted with an electric or other clock.
Patent GB-1096182-A (GB)
Title: Improvements in desiccating cabinets
IPC: A47J39/00
Filed: 1965-01-26
Abstract: 1,096,182. Desiccating cabinets. P. JOWETT. Jan. 24, 1966 [Jan. 26, 1965], No. 3338/65. Heading B1L. Desiccating cabinet A (Fig. 2) having airtight door B contains CaCl 2  or other desiccant in base compartment a below the perforated tray a<SP>1</SP>. D is a magnetic closure catch, and the whole may be suspended from suitable rings or other devices. In Fig. 3, the desiccant is on a perforated tray a<SP>3</SP>, and the food or other contents of the cabinet are kept on perforated trays b<SP>1</SP>, air being circulated over the whole by pump C<SP>1</SP> driven by electric motor C.
Patent GB-100518-A (GB)
Title: Improvements in Hose Menders.
Inventor: STEPHENS HUGH TAYLOR
IPC: F16L55/16
Filed: 1916-03-07
Abstract: 100,518. Stephens, H. T., and Baker, C. E. March 7, 1916. Joints with yielding outer pipe compressed.-A device for connecting two sections of hose in making repairs comprises a tube D, Fig. 1, which is inserted into the ends of the hose sections, and a plate H, Fig. 2, which is slotted radially so as to form teeth B, C and is driven on to the middle of the tube D, the teeth B, C being turned down in opposite directions so as to clamp the ends of the hose A on to the tube D. The tube D is preferably formed with protuberances E near its ends, and the teeth B, C are correspondingly bent. Two plates H arranged in proximity may be used instead of a single plate.
Patent GB-204264-A (GB)
Title: Improvements in apparatus for recovering coke from ashes
IPC: B03B9/04
Filed: 1923-02-05
Abstract: 204,264. Arpin, J. B. Feb. 5, 1923. Plant, general arrangement of; stationary-vessel washing-apparatus.-Apparatus for recovering coke from ashes comprises a number of bins 11 into which the ashes are fed from trucks on railway lines 10. The ashes fall from the bins on to two conveyer belts 12, Fig. 8, running towards the centre of the row of bins and discharging the ashes into a rotary sieve 16. The portion which passes along the sieve enters a funnel 20 which delivers it into a pipe 21 along which a stream of water passes from a tank 23. The pipe 21 extends over the mouth of a funnel-shaped wheeled car 24 mounted on rails 26, 27 on a raft 25 which is in the form of a frame surrounding a well. The rail 27 is in the form of a rack gearing with two wheels of the car 24, one of which can be rotated by worm gear 30, 31 to adjust the position of the car on the raft. On one side of the well is an opening into which extends a funnel 41 of rectangular section leading to a pipe 42 connected to a pump 50. The funnel can be adjusted ver- -tically by a hoist 47. The horizontal current created by the pump effects a separation of the constituents of the ashes, the heavier portion falling to the bottom of the well, from which it is removed by a conveyer 45, while the coke is drawn into the funnel 41 and passes to the pump 50, the delivery pipe 51 of which leads to the tank 23, where it discharges over a screen 53 which delivers the coke to a conveyer belt 55 passing over a set of bins 60 arranged above the rails 10. A number of scrapers 57 are pivotally mounted above the belt and can be raised or lowered to deliver the coke to the required bin. The mouths of the bins 60 can be closed by gates 62.
Patent GB-1527923-A (GB)
Title: Projector focusing mechanism
IPC: G03B21/53
Filed: 1976-01-28
Abstract: 1527923 Slide projectors; automatic focusing GAF CORP 28 Jan 1976 [15 April 1975] 03431/76 Heading G2J A transparency projector has a housing, a projection gate 18, a lamp 23, a barrel 21 for an objective lens movable axially in a sleeve 22, a reversible electric motor 42 means carried by sleeve 22 for moving the lens barrel 21 axially to focus the image of a transparency on a screen. The transparencies are moved to gate 18 one at a time from a magazine (not shown) in a groove 13 by a slide carrier 17. The sleeve 22 is supported by lugs 40, 31, (30) Fig. 4, on slides fixed to the housing. The lens barrel 21 is threaded in sleeve 22 for manual focusing when desired. Sleeve 22 carries a light emitter 56 and a detector 57, which, in conjunction with a known circuit, produce a polarized error signal which is applied to terminals 45, 46 of an electric motor 42 mounted on the sleeve 22. Motor 42 drives a worm 47 in mesh with a gear 49 rotatable on a shaft fast with sleeve 22. A disc 51 fast with gear 49 has a spiral cam groove 52 engaged by a pin fixed to the projector housing. When motor 42 rotates worm 47 in a direction depending on the polarity of the error signal, the sleeve 22, and with it the lens barrel 21, are moved axially to bring the image into focus and to reduce the error signal to zero.
Patent GB-1126992-A (GB)
Title: Improvements in vibration sensing devices
IPC: G01H11/06
Filed: 1966-01-26
Abstract: 1,126,992. Amplifiers. R. W. BAYLIFF. 17 Jan., 1967 [26 Jan., 1966], No. 3434/66. Headings H3B and H3W. In a circuit for a capacity transducer, the transducer 1 is connected in series with a further capacitor 2 in a bridge circuit, the other two arms of which comprise inductors 3, 4 which are tightly coupled to one another. An A.C. source 5 of frequency considerably higher than those dealt with by the transducer is connected between the join of the capacitors 1, 2 and that of the inductors 3, 4 and an output is taken across inductor 3 and rectified in demodulator 6 to obtain the desired output signal. Capacitor 2 is adjustable, being set to obtain a suitable unbalance of the bridge to obtain a linear output (Fig. 2, not shown). Where the transducer comprises a condenser microphone it may be connected to the bridge via an impedancematching transformer and screened leads, the output being amplified before demodulation (Fig. 3, not shown): in another embodiment a capacity pick-up is coupled to the bridge via a step-down auto-transformer and screened leads (Fig. 4, not shown). Further embodiments comprise means for detecting movement of a movable member, which if of insulating material is provided with a metallic coating and may be connected, together with a fixed electrode to the bridge via a current transformer: alternatively two fixed electrodes may be employed (Figs. 5, 6, not shown).
Patent GB-770053-A (GB)
Title: Improvements in or relating to reciprocating pumps
IPC: F04B53/00
Filed: 1954-02-05
Abstract: 770,053. Eccentrics. LINSINGEN, M. VON., [trading as BOCHUMER EISENHUTTE HEINTZMANN & CO.]. Feb. 5, 1954 [Feb. 25, 1953], No. 3436/54. Class 122 (I). [Also in Group XXVIII] In a radial cylinder reciprocating pump, the pistons are connected to shoes 8, or engage a bush, contacting an eccentric ring 5 mounted to rotate on an eccentric 4 which has two recesses 17 containing spiral springs 6 which are connected at their ends to the eccentric and eccentric ring so that as the pressure of the liquid pumped rises the eccentric ring is moved relatively to the eccentric to reduce the stroke of the pistons. A pin 18 operating in a groove 19 limits the relative movement between the parts 4, 5. In an alternative form, a single spiral spring is employed.
Patent GB-715971-A (GB)
Title: An improved football boot stud and the method of attaching it to the sole of the boot
IPC: A43C15/16
Filed: 1952-02-09
Abstract: 715,971. Football studs. SHILLCOCK, F. J. Feb. 9, 1953 [Feb. 9, 1952; July 22, 1952], Nos. 3461/52 and 18455/52. Class: 17(3) A football stud comprises an inner stud 9 which may be secured to a sole 8 by rivets 11, or according to the first Provisional Specification may be formed integral with it, and a rubber cap-like outer stud 10 which is cemented or otherwise bonded to the stud 9. The stud 9 may be of plain cylindrical shape or it may be reduced at 9a to form a shoulder 9b over which a flange 10b on the stud 10 fits. The sides of the stud 9 may be grooved so that ribs 10a may engage therein and prevent relative rotation.
Patent GB-438587-A (GB)
Title: Improvements in the manufacture of filaments and threads of cellulose acetate
IPC: D01F2/28
Filed: 1934-02-12
Abstract: Continuous filaments of cellulose acetate and threads consisting of such filaments are subjected to a stretching operation in hot water under pressure at a temperature above 100 DEG  C., e.g. 110, 120, 130 DEG  C., or more.  The <PICT:0438587/IV/1> pressure is that required to keep the water in the liquid state, and may be 10, 20, 30 or more pounds per square inch.  The stretching operation may be carried out on the materials during the course of their travel from one point to another, e.g. a number of threads may be stretched simultaneously while running from one creel of bobbins to another.  A suitable apparatus comprises a hot water chamber 4 provided with water supply pipe 9 and draw off pipe 10, pressure gauge 11, and steam heating coil 12.  Catch trays 13 and 14 are provided at each end of the chamber.  A number of threads 1 from a creel of bobbins 2 pass through a pair of nip rollers 3, and through orifices in the end plate 7.  The threads on leaving the chamber through orifices in the opposite end plate 8 are drawn by means of a pair of nip rollers 5 and collected on a second creel of bobbins 6.  The orifices in the end plates are sufficiently small to allow the pressure to be maintained.  The stretched materials may be subjected to any desired after-treatments, e.g. treatments to cause shrinkage, as described in Specification 389,823, or to cause partial or substantially complete saponification. Specifications 177,868, 179,234, 316,521, 318,468, [all in Class 2 (ii)], 340,324, 340,325, 340,436, 340,437, 343,062, 370,430, 402,104, 402,105, 402,106, and 403,106 also are referred to.
Patent GB-284682-A (GB)
Title: Improvements in gas bottles
IPC: F17C1/06
Filed: 1928-02-03
Abstract: 284,682. Vulitch, V. A. de. Feb. 3. 1927, [Convention date]. Storing under pressure. - The longitudinal strengthening wires d of a cylinder a having also a second set of wires wound over them are formed at their ends with undulations f shaped to fit exactly into grooves in sleeves c mounted on or rigid with the ends and held in place by wires g wound around them. The grooves may be formed by machining or by rings screwed on the sleeves.
Patent GB-725430-A (GB)
Title: Derivatives of xanthene-9-carbothiolic acid and their manufacture
IPC: C07D311/84
Filed: 1953-02-09
Abstract: The invention comprises dialkylamino alkyl esters of 9-xanthene-carbothiolic acid, and their salts and quaternary compounds, and the manufacture thereof by the reaction of a b -dialkylaminoalkanthiol (e.g. b -diethylaminoethanthiol) with a xanthene carboxylic halide, or of a b -halogenoalkyl-dialkylamine (e.g. b -chloroethyldiethylamine) with xanthene - 9 - carbothiolic acid.  Reference is also made to the reaction of b -diethylaminoethanol with xanthene-9-carboxylic acid, and of b -halogen-ethyl xanthene-9-carbothiolate with diethylamine or methyldiethylamine.  The dialkylaminoalkyl esters can be quaternated by heating with alkyl halides (if not already obtained in quaternary form).  In examples: (1) xanthene-9-carboxylic acid converted to the chloride, is treated with b -diethylaminoethanthiol, to give the hydrochloride of the basic carbothiolic ester, which may be converted into the free ester and its methobromide; (2) xanthene-9-carbothiolic acid obtained from the carboxylic chloride and H2S is esterified with b -chlorethyldiethylamine and converted to the methobromide; the methochlorides may be obtained similarly.  Beta - halogen - ethyl xanthene - 9 - carbothiolate may be obtained by condensing xanthene-9-carbothiolic acid chloride with a b -halogenoethanol or condensing xanthene 9-carbothiolic acid or a salt thereof with an a -b -dihalogenoethane.
Patent GB-228940-A (GB)
Title: Improved manufacture of medicaments
IPC: A61K9/14
Filed: 1925-02-09
Abstract: 228,940. Sabalitschka, T. Feb. 8, 1924, [Convention date]. Medicines for internal use.-Medicines are prepared by adsorbing therapeutically active substances b means of adsorbents of different electrical polarity from that of the substance adsorbed. Amphoteric adsorbents may be employed and the adsorption may be influenced by qualitative and quantitative adjustment of the hydrogen ion concentration of the solutions employed. Preparations may be made which give up the active constituent only under certain conditions such as in the alkaline intestinal fluid. In an example, arsenious acid dissolved in very dilute hydrochloric acid is adsorbed by electrically neutral blood charcoal or aluminium hydroxide gel. The charged adsorbent is collected on a suction filter and dried at 20-30‹ C., and may be mixed with a small quantity of tartaric acid. Other examples relate to the adsorption of iodine from an acidified aqueous alcoholic solution, and the adsorption of morphine from an aqueous alcoholic solution containing potassium hydroxide by means of neutral blood charcoal or acidoid sugar charcoal. Other adsorbents specified are silica, bolus, iron oxide, kaolin, talc, and diatomaceous earth. The body to be adsorbed mav be formed or mixed with other basic or acid substances.
Patent GB-857910-A (GB)
Title: An improved fastener
Inventor: FERNBERG ERIC BIRGER
IPC: F16B2/24
Filed: 1957-02-01
Abstract: 857,910. Securing elements to shafts. F.T. PRODUCTS Ltd. Jan. 28, 1958 [Feb. 1, 1957; May 30, 1957], Nos. 3635/57 and 17258/58. Class 80 (2). A method of making a fastening element 10, particularly for securing a knob to a shaft, from a strip of flat material and having cut out from the same edge of the strip at least one sharply pointed prong 13A, 13B, 14A, 14B and at least one claw 11A, 11B, 12A, 12B bent out of the plane of the strip in opposite directions, comprises removing the material around the prong and the claw by tools directed in opposite directions in two separate strokes for the prong and claw respectively and then bending the prong and claw out of the plane of the strip in the same direction as the tool operations. For securing a knob 20 to a shaft 19 the fastener element has two pairs of prongs and claws as shown and is bent into a U-shape to fit over the end of the shaft and inside the bore 21 of the knob so that the prongs and claws bite into the material of the shaft and knob respectively. Reference has been directed by the Comptroller to Specification 795,479.