baber/WOPTO huggingface dataset:
Patent GB-695468-A (GB)
Title: Improvements in or relating to the manufacture of organic halogen compounds
Inventor: RYDON HENRY NORMAN
IPC: C07C17/16
Filed: 1950-08-21
Abstract: Organic halogen compounds are made by heating an alkyl, alkyl-aryl or aryl phosphite with an organic halide and an organic hydroxy compound having an alcoholic hydroxyl group.  The hydroxy group of the hydroxy compound is replaced by halogen.  The organic halide may be an alkyl halide, an aralkyl halide or a halogen carboxylic ester, e.g. ethyl bromoacetate, and may contain more than one halogen atom per mol., e.g. carbon tetrachloride and ethylene dibromide.  Organic iodides are of especial use.  The organic halide should have a greater reactivity than that of the halogen compound to be produced with respect to the phosphite. Alternatively the halogen compound should be removed from the reaction mixture as formed.  Moisture is desirably excluded. Triaryl phosphites are preferred.  Addition compounds made by reacting the organic halide with the phosphite may also be used, a triaryl phosphite methiodide being preferred.  The phosphite is recovered as a diaryl, dialkyl or diaralkyl alkane or aralkane phosphonate.  Hydroxy compounds mentioned are aliphatic alcohols which may be unsaturated.  In examples: triphenyl phosphate and methyl iodide are treated with (1) ethyl alcohol; (2) n-butanol; (3) sec.-butanol; (4) sec.-n-octanol; (5) cyclohexanol; (6) allyl alcohol; (7) betaphenyl-ethanol; (8) trimethylene glycol; (9) 2,2-dimethyl-trimethylene glycol; and (10) ethyl lactate to produce the corresponding iodo or diiodo compound; with n-butyl iodide and methanol in (11) to produce methyl iodide; with carbon tetrachloride and n-butanol in (12) to produce butyl chloride; with benzyl chloride and (13) n-butanol, (15) allyl alcohol, 16) trimethylene glycol; and (17) ethyl lactate to produce the corresponding chloro or dichloro compounds; with (14) carbon tetrachloride and n-hexanol to produce n-hexyl chloride; with (18) ethylene dibromide and n-butanol to produce butyl bromide; with benzyl bromide and (19) n-butanol, (20) allyl alcohol, (21) trimethylene glycol, and (22) ethyl lactate to give the corresponding bromide or dibromide; and with (23) methyl bromide and n-butanol to yield n-butyl bromide; and triphenyl phosphite methiodide is prepared and reacted with (24) ethanol, (25) isopropanol, (26) n-butanol, (27) sec.-butanol, (28) tert.-butanol, (29) sec.-n-octanol, (30) cyclohexanol, (31) crotyl alcohol, (32) allyl alcohol; (33) benzyl alcohol, (34) beta phenyl ethanol, (35) phenyl methyl carbinol, (36) trimethylene glycol, (37) 2,2-dimethyl-trimethylene glycol, (39) ethyl lactate, and (40) cholesterol, to yield the corresponding iodide or diiodide; in (38) triethyl phosphite, methyl iodide and n-butanol yield ethyl and n-butyl iodides; and in (41) triphenyl phosphite is reacted with benzyl chloride and the complex thus formed treated with n-hexanol to yield n-hexyl chloride.
Patent GB-642136-A (GB)
Title: Magnetic recording-reproducing head
IPC: G11B5/127
Filed: 1947-07-30
Abstract: 642,136. Magnetic recording-reproducing heads. BRUSH DEVELOPMENT CO. July 30, 1947, No. 20642. Convention date, Aug. 13, 1942. Drawings to Specification. [Class 40 (ii)] A magnetic recording or reproducing head comprises a substantially closed magnetic core having two core members with air gaps between and coils wound upon the members so connected that they produce bucking electromotive forces for stray magnetic fields but aiding E.M.F. for desired magnetic flux. The core may comprise two flat L-members mounted on relatively hinged members of a structure so that they may be moved apart against spring action for insertion of magnetic tape, the adjacent pole pieces of the L-members being slightly offset to effect longitudinal magnetization of the tape. A screw may bear on one limb of one member, to bend it against resilient material and vary the offset.
Patent GB-1352478-A (GB)
Title: Apparatus for guiding film strips
IPC: B65B41/14
Filed: 1972-05-04
Abstract: 1352478 Packaging machines KRAMER & GREBE KG MASCHINEN-UND MODELLFABBIK 4 May 1972 [11 May 1971] 20766/72 Heading B8C Apparatus for guiding a film-strip through a deep-drawing packing machine comprises opposed endless chains 18, 18a carrying spring- loaded clamps 6, 6a which are closed by the teeth of sprocket wheels 2, 2a at the point 15 to grip and laterally tension the film-strip 5 drawn from roll 9, the clamps being opened to release the film-strip at point 16 by the teeth of sprockets 17, 17a. Sprockets 2, 2a are inclined to the shaft 8 of a drum 7 over which film-strip 5 passes, so that the opened clamps approach the strip edges from the sides.
Patent GB-661516-A (GB)
Title: Method and apparatus for the separation of liquid from liquid suspensions of solid material
IPC: C08B1/12
Filed: 1949-08-10
Abstract: 661,516. Extrusion presses. AMERICAN VISCOSE CORPORATION. Aug. 10, 1949. [Oct. 7, 1948] No. 20798/49. Class 46. [Also in Group XXIX] A continuously-running screw-extrusion press is provided with a variable-feed positive-displacement device for feeding a suspension and a pressure-sensitive means responsive to changes in the feed region of the press for controlling the speed of the feeding device. Alkali cellulose suspension is fed along a duct 8, by a gear pump or the like 9 driven by a variable speed means 10, the pressure immediately adjacent the entry to a non-uniform pitch screw-press 3 being communicated through a diaphragm 24 and a gas or liquid in a tube 26 to the diaphragm 17 of a diaphragm motor 18. The motor 18 controls the speed of the device 10 through a rod 32 and links 33, 15, 14. The diaphragm unit 21 may alternatively be connected to a pressure-sensitive element in a conventional control mechanism 20 which regulates the pressure of air supplied to the motor 18, through a tube 25 from an air supply at constant pressure entering the instrument through a pipe 27. The latter arrangement eliminates hunting and facilitates adjustment to different feedpressures for the screw 3. The screw 3 may be of uniform pitch operating in a casing which narrows towards the discharge end of the press.
Patent GB-580183-A (GB)
Title: Improvements relating to cascade-connected dynamo-electric machines
IPC: H02K47/26
Filed: 1943-12-13
Abstract: 580,183. Induction machines. LANDIS & GYR SOC. ANON. Dec. 13, 1943, No. 20821. Convention date, Dec. 11, 1942. [Class 35] An audible frequency asynchronous generator is driven by an induction motor having a commutator type frequency changer cascaded therewith and the current fed to the commutator machine is varied by the exciting current of the induction generator. In the form shown, a transformer or induction regulator 15 is provided so that the exciting current from supply 5 for the induction generator 4 varies the current fed to the frequency changer 3 cascaded with the motor 1. Instead of the transformer 15, a separate exciter or a network of resistance, capacity, &c., or a valve amplifier could be used to supply the frequency changer 3 with a current proportional to the magnetising current of the induction generator.
Patent GB-736188-A (GB)
Title: Improvements in and relating to show-glass arrangements for electrical ovens
IPC: F24C15/00
Filed: 1953-07-28
Abstract: 736,188. Observation devices for ovens. DITTGEN, J. K. July 26, 1954 [July 28, 1953], No. 20880/53. Class 28 (1). The rim of a viewing opening, formed in an oven is stamped to form a recess c in which the edges of a glass d are held by straps f secured to the oven by rivets or screws g. The straps f may be flexible or rotatable about rivets g so that the glass can readily be replaced. If rivets are used to secure the straps they may act as snifting valves for the interior of the oven.
Patent GB-905274-A (GB)
Title: Improvements in or relating to purification of plutonium
Inventor: AIREY LESLIE
IPC: C01G56/00
Filed: 1952-08-20
Abstract: 905,274. Making soluble salts of plutonium electrolytically. UNITED KINGDOM ATOMIC ENERGY AUTHORITY. Aug. 20, 1953 [Aug. 20, 1952], No. 20957/52. Class 41. [Also in Group XL (a)] A water-soluble plutonium compound is obtained by oxidizing plutonium oxalate with anodic oxygen in the presence of nitric acid. Plutonium oxalate may be suspended in concentrated nitric acid and an electrical potential applied between a rotating anode and a cathode in order to provide oxygen at the anode. The plutonium oxalate treated may be the product of a step in the purification of plutonium (see Group XL (a)].
Patent GB-409647-A (GB)
Title: Improvements in and relating to organs
IPC: G10B1/04
Filed: 1932-07-25
Abstract: 409,647. Electrical musical instruments; organs. PUGET, J., 13, Boulevard Carnot, Albi, Tarn, France. July 25, 1932, No. 20959. Void [Abridged as open to inspection under Sect. 91 of the Acts, July 26, 1932]. [Class 88 (ii).] Relates to a synthetic-tone instrument in which the sounding means consist either of oscillating thermionic valves and a loud-speaker, or of organ pipes. Fig. 1 shows the action circuits for a fundamental in either form of instrument. Each key 2 carrying a contact 56 has a set of electromagnets 69, 70 ... in line with it, and on its depression such magnets are energized as correspond to the stop contacts 64, 71 ... that have been closed. Energization of a magnet, as 70, closes a group of, e.g. three contacts 18 leading respectively, in the first form of the instrument, through predetermined resistances to the three valves yielding the fundamental and the first and second harmonics, which are thus sounded in the desired proportions appropriate to the stop. In the second form of the instrument the group of contacts 18 leads to pipes which sound respectively the fundamental and harmonics and are selected according to the strength required, from identical sets of pipes in three different chambers the chambers except the first being screened to reduce the sound in predetermined ratios and opening into a common dome containing a microphone connected to a loud-speaker, as described in Specification 403,927.
Patent GB-273116-A (GB)
Title: Improvements in or relating to vessels for the storage of compressed or liquefied gases
IPC: F17C7/00
Filed: 1926-08-25
Abstract: 273,116. Weski, O. Aug. 25, 1926. Air, gas, and vapour injectors and douches.-A storing vessel for compressed or liquefied gases delivers through a valve and a flexible conduit to a nozzle provided with a handle directing the gas, e.g. to a tooth ; a valve associated with the nozzle is opened and closed by a lever and automatic heating means operated e.g. by the lever or directly by the gas flow, are put in and out of action with the opening and closing of the valve. Fig. 2 shows an electrical heating means comprising a coil 7 connected to terminals 19, 21 in the handle 5. The valve 10 is opened by the lever 9 which at the same time turns a contact block 16 into position to close the circuit. In a modification, the gas flow,. when the valve is opened, lifts a small valve from its seat and rotates the bell crank lever on which the valve is mounted, causing one of its arms to close an electrical heating circuit. Gas may replace electrical heating.
Patent GB-1122086-A (GB)
Title: Electrical control circuits
Inventor: MUSHAM JOHN ROBIN
IPC: H02M1/08
Filed: 1966-05-11
Abstract: 1,122,086. Transistor pulse circuits. ASSOCIATED ELECTRICAL INDUSTRIES Ltd. 21 April, 1967 [11 May, 1966], No. 20968/66. Heading H3T. In a circuit for generating control pulses, e.g. for triggering a thyristor Th, at a time dependent on the value of a control signal C, a capacitor C2 is charged from half-cycles of alternating current at A, B, via a first transistor TR1 at a rate dependent on the magnitude of signal C, until a second transistor TR2 becomes conductive and is coupled to TB1 in such a way that the current through TR 1 exhibits a step increase followed by a lower level of conduction for the rest of the halfcycle. If the circuit is used with unsmoothed full-wave rectified half-cycles at A, B, then a delay circuit R2, C1 is employed to allow capacitor C2 to be adequately discharged at the end of each operative half-cycle. Alternatively terminals A, B may be connected to a sinusoidal voltage source, R2 and C1 being omitted, C2 being discharged via the forward direction of the Zener diode ZD during the negative half-cycle.
Patent GB-1358511-A (GB)
Title: Apparatus for quantitating enzyme activity
IPC: C12Q1/52
Filed: 1972-05-05
Abstract: 1358511 Enzyme assay test device GEOMET Inc 5 May 1972 21005/72 Heading G1B An enzyme assay test device comprises a support and a plurality of test spots on the support, the test spots comprising (i) at least one (control) spot containing all reagents for the assay together with a standard quantity of the enzyme, (ii) a (blank) spot containing all reagents for the assay except the substrate for the enzyme, (iii) a (test) spot containing all reagents for the assay, each spot comprising a plurality of discrete porous laminae 16, 18, 26 impregnated with the reagents, the laminae in each spot being in a rigidly confined stacked array, for example by means of retaining ring 20 and polystyrene slides 10, 12, the array including a filter disc 24, and the support allowing visual inspection of the lowermost lamina of each stacked array. Discs 16, 18 may be of glass fibre and disc 26 of cellulose acetate. An Example relates to assay of creatine phosphokinase (CPK), when zones A, B, C contain CPK standards representing normal, high and elevated levels of CPK, zone D provides a blank and zone E the assay reagents. In use of the assembled unit, a drop of water is applied to spots A, B, C and a drop of whole blood to spots D and E, and the unit is inverted for observation of colour development.
Patent GB-1000446-A (GB)
Title: Improvements in or relating to cooking vessels and handles therefor
Inventor: WALKER MICHAEL
IPC: A47J45/07
Filed: 1963-05-27
Abstract: 1,000,446. Handles for cooking vessels. HORNSEA POTTERY CO. Ltd. May 26, 1964 [May 27, 1963; June 17, 1963], Nos. Nos. 21048/63 and 24006/63. Heading A4A. [Also in Division B4] A handling appliance, for use with a cooking &c. vessel 1 provided with a lid, comprises a stem 5 of aluminium alloy, stainless steel, wood &c. and an integral head 6 having an angular slot which is selectively engageable over rims 2, 11 on the vessel and lid. In modifications the stem and part of the head are made of wood and the slot is formed by a metal plate secured to the head, the stem is downwardly inclined relatively to the head or is formed as a rectangular frame as shown in Fig. 4. Specification 1,000,446 is referred to.
Patent GB-1273352-A (GB)
Title: Improvements relating to automatic routing systems
Inventor: BILLIN JAMES JOHN
IPC: B65G47/49
Filed: 1968-05-03
Abstract: 1,273,352. Endless conveyers. EMI Ltd. 5 June, 1969 [3 May, 1968], No. 21063/68. Heading B8A. [Also in Division B7] Carriers 1 on a conveyer (not shown) are coded according to destination by a pair of reflectors 14, 15 arranged respectively on the leading and trailing edges of the carrier in selected positions according to a predetermined code and angled such that photo-electric cells positioned according to said code at the desired destination may only receive the reflections from one carrier at a time. In one embodiment the reflectors are angled inwardly to reflect light from a common source 16 or alternatively, Fig. 6 (not shown) are angled outwardly to reflect light from two sources (34). Each reflector is a corner reflector and as such reflects the light along the incident path to a semi-silvered mirror or prism 19 to direct the light to a collimating or condensing lens 21 and thence to a photo-electric cell 23 such that when the cells are simultaneously actuated, i.e. when the destination code concurs with the carrier code, switching means (not shown) is actuated to deflect the carrier. The light source may be a red light and the photoelectric cell red sensitive to reduce incorrect readings caused by stray light.
Patent GB-926679-A (GB)
Title: Improvements in or relating to a circuit arrangement for a telephone system operating with frequency selection
IPC: H04Q1/453
Filed: 1960-06-15
Abstract: 926,679. Automatic exchange systems. SIEMENS & HALSKE A.G. June 15, 1960 [June 23, 1959], No. 21108/60. Class 40 (4). In a system in which signalling frequencies are generated at the exchange, the transmitter S and receiver E are connected by a hybrid transformer G which is controlled over the line F1 by tuned circuits F at the substation. If the line F1 is open all the frequencies pass to the receiver E. When one or more tuned circuits are switched in the network N balances the line for the corresponding frequencies and these no longer pass to the receiver E.
Patent GB-1519410-A (GB)
Title: Garniture belt
IPC: A24C5/18
Filed: 1976-05-21
Abstract: 1519410 Impregnated woven garniture belt OLIN CORP 21 May 1976 [28 Oct 1975] 21129/76 Headings D1K DIP and D1W A garniture belt for cigarette making machines comprises an endless woven fabric belt made from warp and filling threads, e.g. in a plain, modified plain or twill weave, each warp thread consisting of a plurality of sak cotton fibre threads plied together and mercerized, each filling thread comprising a plurality of synthetic core threads plied together, each core thread comprising a multifilament synthetic core overwrapped by a sheath of cotton fibres, and the belt having been impregnated with a sizing solution which is cured to stabilize the belt to the desired dimensions. The synthetic core may be a multifilament polyester or polyamide yarn. The sizing solution may comprise nylon 66 in aqueous ethanol. Alternatively starch or polyvinyl acetate solutions may be used. The belt has improved wear and abrasion resistance, flexibility, tensile strength and dimensional stability.
Patent GB-838494-A (GB)
Title: Improvements relating to electric conductors
IPC: H01B5/10
Filed: 1955-07-21
Abstract: 838,494. Cables. RITCHIE, J., and WHITEPARSONS, G. D. July 23,1956 [July 21, 1955], No. 21172/55. Drawings to Specification. Class 36. An overhead line conductor comprises at least one conductive wire or tube associated with a card or rope of non-metallic inorganic fibres, such as glass fibres, coated or impregnated with synthetic resin, and arranged to take most of the tension to which the conductor is subjected. Wires may be stranded around a glass-fibre core, or stranded together and several such stranded conductors laid up around a rope core, and such arrangements may be combined to form larger cables. Alternatively non-metallic cords may be laid up around a stranded conductor to protect it against the atmosphere. Insular conductors may each have a core comprising a bundle of parallel fibres consolidated with resin, and several such tubes may be laid up around a central core.
Patent GB-154684-A (GB)
Title: Improvements in or relating to tyre vulcanising and moulding apparatus
IPC: B29D30/06
Filed: 1919-08-28
Abstract: 154,684. Dunlop Rubber Co., Macbeth, C., and Hardeman, W. E. Aug. 28, 1919. Vulcanizing-moulds; presses.-In an apparatus for vulcanizing tyres of the type comprising an expanding head and a mould formed in three parts, namely, upper and lower parts and a centre or tread ring, the expanding head and the tread ring are mounted on a common system of supports so that they are always in the same horizontal plane. The expanding head, consisting of segments C moving radially in a piece C' is mounted on a ring G supported on three legs G' attached to a ring G<2> which also carries brackets D' on which is mounted the tread mould ring D. The upper part of the mould is carried on a fixed head B connected to the base of the machine by two supports on opposite sides of the apparatus. The lower part Ax of the mould is carried on a frame E, through holes in which pass the legs G<1>. The frame E is carried by a plunger E<1> moving in a cylinder E<2> attached to the base of the machine. The plunger itself is formed as a cylinder and in it moves a plunger C<x> which operates the segments C of the expanding head through toggle links G<2>. The motion of the plunger Cx is limited by the head C', and the toggle links are formed so as to allow a little lost motion to permit the segments C to take up their proper position with respect to the upper part B<x> of the mould. To ensure this adjustment, the segments C are formed with projections C<4> with a bevelled face engaging with a corresponding groove B<3> in the mould. The packing of the plunger C<x> can be compressed by means of a sleeve C<6> surrounding the stem of the plunger and passing up through the stuffing-box of the cylinder E'. Nuts C<9>, C' allow of compressing the packing and locking the sleeve C<6>. Steam is admitted to chambers in different portions of the apparatus by pipes C<5>, A<2>, D<2> from a box H, which it enters through telescopic pipes H<1>, H<2>. The tread ring D is formed in two parts enclosing a steam-pipe D<3>. On account of the portion of the supports, the various mould parts are readily accessible for change or renewal. To ensure that the lower half of the mould shall not be raised until the segments C are fully expanded, the valves regulating the admission of pressure water to the cylinders E<1>, E<2> are interlocked by means of the arrangement shown in Fig. 6. Levers M, N operating the two valves are connected by a slotted link L. When the levers are in the position shown water is admitted to the cylinder E', but not to the cylinder E<2> and further motion of the levers is prevented by a pivoted stop P. When the segments C are fully expanded the stop P is raised by a solenoid Rand the levers can be moved on to admit water to the cylinder E<2>.
Patent GB-805750-A (GB)
Title: Improvements in aircraft or surface craft
Inventor: IRELAND LIONEL HUGH
IPC: B63G8/42
Filed: 1953-07-30
Abstract: 805,750. Lowering from aircraft. SAUNDERS-ROE Ltd. July 23, 1954 [July 30, 1953], No. 21219/53. Class 4. Apparatus for releasing from and retracting into an enclosure within a craft (e.g. a flying boat) a cable 28 attached to a sonar 13 or other object, comprises a power-operated cable drum 30 housed within the enclosure, a cradle 18 for supporting the object, the cradle carrying guide rollers for the cable and a pair of spaced forked guides 38 for accommodating trunnions 40 projecting from opposite sides of the object, the guides being flared at their lower ends, a linkage connecting the cradle to the craft, and a jack 44 or the equivalent for moving the cradle from a retracted position, in which it is housed within the enclosure, and a projected position (shown in thin-dotted lines) in which at least the flared lower ends of the guides project beneath the craft. The cable 28 is preferably of aerofoil section and is wound flat on the drum 30 ; it is turned through 90 degrees by a pair of guide rollers 37 and a further pair of guide rollers (not shown) attached to the cradle and grooved to provide a nip. Locks 51 are provided at each side of the cradle for locking the sonar to the cradle and are releasable by means of jacks 54. The craft is preferably a flying boat and the enclosure is situated aft of the main step ; the bottom of the enclosure is provided with two pairs of doors 19, 20 which are operable remotely from within the hull. When it is desired to tow the sonar the cradle is returned to its retracted position and the aft doors 20 closed, the doors 19 remaining open. Valves 56 in the hull bottom allow escape of water from the compartment during take-off.