baber/WOPTO huggingface dataset:
Patent GB-730295-A (GB)
Title: Improvements in or relating to writing instruments
IPC: B43K5/18
Filed: 1952-07-11
Abstract: 730,295. Reservoir pens. SHEAFFER PEN CO., W. A. July 11, 1952 [Nov. 17, 1951], No. 17521/52. Class 146(3). A reservoir pen comprises a nib, a feed-bar adjacent the nib, a filling tube mounted in the feed-bar spaced from the nib, the tube having a forward end extensible to a position forwardly of the tip of the nib and retractable to a position rearwardly of the tip of the nib, an opening at the forward end of the tube, and a capillary passageway communicating between the nib and the forward end of the tube when retracted to the rearward position. As shown, the feed-bar 308, Fig. 1, has an axial bore 322 in which the filling tube 328 is reciprocable so as to project the front end of the tube 328 into a filling position in advance of the tip of the nib 310. The tube is carried by a plug 346 fitted in the end of a collapsable sac 336 and surrounded by a sheath 344 having threads 347 cooperating with internal threads in a nut 360 on the end of a plunger tube 352. The plug 346 is rotationally restrained by a collar 362 carrying projections engaging longitudinal grooves 366, such that on rotation of a cap 302, Fig. 2, attached to the plunger tube 352, the plug and tube are advanced from the retracted position as shown in Fig. 1, the collar 362 being pressed forwardly by a spring 368. The projected end of the tube 328 is then immersed in ink, the sac 336 then being deflated, by reciprocation of the plunger 352, in the manner described in Specification 720,467. Ink is drawn into the reservoir during filling through the tube 328, any ink adhering to the end of the tube 328, will after retraction of the tube, be communicated through capillary passageways 342, 340, 324 and 312 to the tip 316 of the nib. Ink is supplied to the passageway 342 during writing along a feed passageway 334 within the tube, while air to replace ink consumed is supplied to the sac 336 along an air vent 332 in the tube 328. Ink displaced from the reservoir, on account of pressure or temperature changes therein, is accommodated in ink overflow spaces 318 and 320 connected by the passageway 324. The nib 310, which is of tubular form, is screwed to a collar 306 screwed into a nib-section 304 attached to the pen barrel 300. yield bodily when engaged by the nose to accommodate inaccuracies in their manufacture. As shown, a stem a is enclosed by the nose f and is extended by a collet h of soft material, such as rubber or polythene. The collet h receives the feed-bar b and nib c. In a modification, part of the rear end of the feed-bar may be replaced by a collet of resilient material or a thin sleeve of resilient material may be interposed between the feed-bar and the surrounding stem. In a further modification, both the stem and feed-bar may be formed of resilient material at their joint, the resilient parts in each case being bonded to the remainder.
Patent GB-1055070-A (GB)
Title: 6-(3,4-methylenedioxystyryl)-3-mercapto-5-hydroxy-1,2,4-triazine and the preparation thereof
IPC: C07D405/06
Filed: 1965-04-27
Abstract: Novel 6 - (3,4 - methylenedioxystyryl) - 3 - mercapto - 5 - hydroxy - 1,2,4 - triazine is prepared by cyclizing the thiosemicarbazone of 3,4-methylenedioxy benzalpyruvic acid (obtainable by the reaction of thiosemicarbazide and 3,4 - methylenedioxybenzalpyruvic acid) by the action of an alkali metal hydroxide or carbonate in aqueous medium at the boiling temperature of the reaction mixture, isolating the triazine from the resulting salt by acidification and purifying the product. The compound is effective against tumours.
Patent GB-1013188-A (GB)
Title: Combustion gas treatment catalysts
Inventor: HOWK BENJAMIN WILSON
IPC: B01J23/34
Filed: 1962-05-08
Abstract: Mangano - chromia - manganite complexes of formula XCr2On.2YMnOm in which X=0.5 to 1.5 or from 3.5 to 30, Y=3, n=2, 3 or 6 and m=1, 1.33, 1.5, 2 or 2.5 may be made by reacting a water-soluble manganese salt and a water-soluble chromium compound, e.g. CrO3, in the presence of NH3. The mangano-chromiamanganites preferred have a crystallite size no greater than 1000<\>rA.  The complexes can be prepared in other ways, e.g. by making a mixture of salts of Mn and Cr in the desired ratio and in very finely divided form and calcining. Numerous examples of suitable Cr and Mn compounds are given and the examples describe large scale preparations of the complexes. Specifications 657,154, 701,243 and U.S.A. Specification 1,964,001 are referred to.ALSO:The invention comprises catalysts consisting of (1) mangano-chromia-manganites of formula XCr2On.2YMnOm wherein X has a value from 0,5-1,5 or from 3,5-30, Y=3, n=2, 3 or 6 and m is 1, 1,33, 1,5, 2 or 2,5; and (2) mangano-chromia-manganites of the same general formula in which X=0,5-30 in combination with at least one interspersant, the latter being defined as a refractory material the function of which is to keep the crystallites of catalyst and cocatalyst separated.  Preferred size of the interspersant is less than 50  and melting point above 1600  DEG C.  Examples of interspersant are Al2O3, Al(OH)3, TiO2, ThO2, CeO2, Cr2O3, MgO, CaO, Ca(OH)2, Ba(OH)2, BaO, SrO, ZnO, MnO2, SiO2, BeO, ZrO2, LaO2, HfO2, BaCrO4, CaCrO4, chrome oxides, CaSiO3, BaSiO3, and MgAl2O4.  As cocatalysts there may be used chromites of Cu, Ni, Fe, Zn, Cd, Co, Sn or Bi.  Additionally the catalysts may contain CuO, NiO, Fe2O3, ZnO, CdO, SnO2, Bi2O3 and MnO or MnO2.  Examples are given. Specifications 657,154, 701,243 and U.S.A. Specification 1,964,001 are referred to.
Patent GB-479825-A (GB)
Title: Photo-voltaic cells
IPC: H01L31/06
Filed: 1937-06-25
Abstract: In making a photo-voltaic cell comprising contiguous layers of thallium and thallium treated with sulphur (to form thallous sulphide), the layer of sulphide may be formed on the thallium by exposing the metal to a glow discharge in sulphuretted hydrogen or to vaporized flowers of sulphur.  Before sulphurization of the thallium, it is necessary to remove impurities, and this is done by melting the metal in vacuo and allowing it to flow through several very narrow constrictions to strain off oxide &c.  The treatment of discs of thallium with H2S is effected as follows.  A disc cleaned by washing in water or dilute acid is placed in an aluminium holder in an evacuated tube in which two perforated aluminium discs are located about 1/8 inch apart, and about 1/4 inch from the disc and parallel thereto. After the thallium has been finally freed from oxide by heating, H2S gas is allowed to flow through the tube and a glow discharge is produced between the electrodes.  A temperature of preferably about 260 DEG  C. is maintained in the tube.  The alternative process of sulphurization is carried out by admitting sulphur vapour into an evacuated tube in which the thallium disc is placed and maintained heated.
Patent GB-837355-A (GB)
Title: Breathing mask construction
Inventor: AUSTIN HARRY WILSON
IPC: A62B18/08
Filed: 1958-01-20
Abstract: 837,355. Breathing-masks. MINE SAFETY APPLIANCES CO. Jan. 20, 1958. No. 17737/59. Divided out of 837,354. Class 81 (2). The subject-matter of this Specification is identical with that described in Specification 837,354 but the claims are concerned with a flexible breathing-mask having a window 6 mounted in a longitudinally curved ocular opening, a deflector 31 being disposed in the mask with most of its edges in contact with the mask wall to form an air duct leading from an air inlet at the bottom of the mask to outlets, which are formed by spacing the edges of the deflector from the mask wall at opposite sides of the window, and a valve 26 being disposed so that incoming air is directed through the duct.
Patent GB-1067214-A (GB)
Title: Improvements in organosilicon materials and a method for making them
IPC: C07F17/02
Filed: 1964-04-29
Abstract: Metallocenes containing at least one nuclear substituent of formula A(R)2Si-R1-Y-wherein R is H, halogen, alkoxy, hydrocarbon, halohydrocarbon, cyanoalkyl or fluoroalkyl (see Division C3), may be used as lubricants.ALSO:The invention comprises metallocenes having at least one monovalent radical of the formula A(R)2Si-R1-Y-bonded to at least one of the two cyclopentadienyl nuclei, which may also be substituted by aryl, hydroxyaryl, cycloaliphatic, nitroaliphatic, acyl, arylaryl, sulpho, carboxyaryl, nitroaryl, haloaryl, haloaliphatic groups; wherein R is a hydrogen, halogen, alkoxy, hydrocarbon, halohydrocarbon, cyanoalkyl or fluoroalkyl monovalent radical, A is an R radical or hydroxy, R is a divalent hydrocarbon or halohydrocarbon radical of at least two carbon atoms, Y is carbonyl, carbinol, methylene, carbamino, or carbazido group. Specified transition metals forming the metallocenes are titanium, vanadium, chromium, manganese, iron, cobalt, nickel, zirconium, columbium, molybdenum, technetum, ruthenum, rhodium, palladium, hafnium, tantalum, tungsten, rhenium, osmium, indium and platinum.  The compounds may be substituted in both rings. Many compounds are specified.  Compounds wherein Y is a carbonyl radical are prepared by reacting R3Si-R1-CO-X, wherein X is a halogen atom with a metallocene in the presence of a Friedel-Craft catalyst, and hydrolysing the product; the carbonyl group may then be modified to the other specified Y groups by conventional reactions.  Compounds in which both rings are identically substituted may be prepared by reacting a metallated cyclopentadiene with a silyl chloro-hydrocarbon and reacting the product first with a metal e.g. lithium, and then with the appropriate metal halide.  The silyl-organo-carboxylic halides, R3Si-R1-CO-X, may be prepared either by alkylation of a malonic ester with a haloalkyltrialkylsilane followed by halogenation of the resulting acid, or by alkylating a b -cyanoalkyl-trihalosilane followed by hydrolysis.  Compounds may be hydrolysed to siloxanes, including disiloxanes containing organosiloxane and metallocene units.  A typical Example (1) describes the preparation of <FORM:1067214/C3/1> ; in another Example (13) a polydimethylsiloxane is mixed with product of (1), fumed silica and benzoyl peroxide and the mixture cured.  Uses.-Heat stabilizers for organopolysiloxane elastomers, U.V. absorbers, anti-knock compounds, anti-oxidants, lubricants, smoke eliminators, dyestuffs, photographic developers, vulcanization accelerators, fuel additives, metalplating reagents, polymerization catalysts (for polyethylene, curable silicones, alkyd resins and drying oils) medicinals, fungicides, pesticides, agricultural chemicals, damping fluids; vinyl-containing metallocenes may be polymerized alone or with other monomers (e.g. chloroprene, styrene, HCHO).
Patent GB-421162-A (GB)
Title: Improvements in and relating to optical position indicators for electric switches
IPC: H01H9/16
Filed: 1934-06-15
Abstract: 421,162. Indicators. BRITISH THOMSON-HOUSTON CO., Ltd., Crown House, Aldwych, London. June 15, 1934, No. 17764. Convention date, June 15, 1933. [Class 38 (v)] A multiposition rotary switch a for an electric cooker has rigidly attached to the operating spindle b an insulating disc e carrying on brackets f an indicating lamp or discharge tube g the terminals of which are connected either directly or through a resistance o to contact springs h<1>, h<2> which engage semicircular contact strips i<1>, i<2> on a fixed plate k. In the off position of the switch, the lamp g is not alight but in each of the three on positions the lamp is illuminated and is moved to a position beneath a corresponding coloured window such as m<1> or m<3> bearing a suitable marking so that the position of the switch may be seen at a distance.
Patent GB-595986-A (GB)
Title: Improvements in or relating to helicopters
IPC: B64C27/82
Filed: 1945-07-12
Abstract: 595,986. Helicopters. FAIREY AVIATION CO., Ltd., and BENNETT, J. A. J. July 12, 1945, No. 17830. [Class 4] A helicopter comprises a main supporting rotor and an auxiliary rotor located within the projected area of the main rotor disc with its axis of rotation spaced laterally from that of the main rotor. The reaction torque of the main rotor is balanced by a forward inclination of the auxiliary rotor axis with respect to' the main rotor axis, the latter being inclined rearwardly in hovering flight to balance the forward component of the auxiliary rotor thrust. Forward propulsion is effected by decreasing the backward inclination of the main rotor axis. The inclination of the auxiliary rotor axis may be varied, or the blade angle adjusted cyclically, to provide control of yawing. Rolling may be controlled by a lateral inclination of the main rotor axis. As shown, the blacles 6 of the main rotor are pivoted about vertical axes on drag links c pivoted about horizontal axes to a universally-mounted rotor head d which is driven through shafting, bevel gearing and a one-way clutch by a power unit in the fuselage. The head 21 of the auxiliary rotor k is mounted on links 22 and is driven by a shaft m from the bevel gearing. The head d may be tilted forwardly or rearwardly by fore and aft movement of a universallymounted lever o acting through a link q, bellcrank lever r and rod s. Lateral movement of lever o effects lateral tilting of the rotor head through a link t, Fig. 4; bell-crank lever u, link v, bell-crank lever w and rod x. Forward tilting of the rotor head 21 is effected by movement of a pedal-operated rudder bar y through a link 11, bell-crank lever 12, rod 14, bell-crank lever 15, Fig. 5, link 17, bell-crank lever 18 and rod 20.
Patent GB-784316-A (GB)
Title: Improvements in and relating to electroscopes and to charging mechanisms therefor
Inventor: BURNETT DONALD FENN
IPC: H01J47/04
Filed: 1955-06-21
Abstract: 784,316. Electrostatic meters. RANK PRECISION INDUSTRIES, Ltd. June 21, 1955, No. 17958/55. Class 37. The charging switch of an electroscope is provided with an earthing resistance in the retracted position. A dosimeter comprises an aluminium tube, Fig. 1, fitted with a microscope optical system, through the eyepiece 2 of which is observed a quartz fibre 3. The fibre 3 is mounted on a wire support 4 embedded in an insulator 5 and provided with a deflector loop 6 at one end a a charging point 7 at the other. A charge is applied to the point 7 from a source E via a potentiometer 8 and a sliding conductive sleeve 9, which is loaded by a coil spring 10 located between the sleeve 9 and an outer insulating sleeve 13, the sleeve 9 being normally held in the retracted position. The spring 10 abuts against a flange 20 on the sleeve 9 which, in the retracted position rests against an earthing resistance comprising a ring 18 of semi-conductive material, such as hard synthetic rubber, fibre or conducting ceramic material. The ring 18 is held in place by a locking ring 19. The electroscope is sealed, the sleeve 9 being closed by a window 17 and a gland seal being provided, comprising two rings 11, 12 of resilient material such as rubber with an interposed washer 15 and a further washer 16 adajcent the spring 10. Modifications comprise the use of a single sealing ring and washer, Fig. 2 (not shown), or the positioning of a sealing ring and washer at each end of the spring, Fig. 3 (not shown). In a further modification, the flange 20, Fig. 4, is so formed on the sleeve 9 as to allow of a pair of sealing rings 11, 12 being positioned between it and the earthing ring. The earthing ring may be carried forward during charging by the sleeve 9, being sprung over a shoulder formed upon it (Fig. 5, not shown) or it may be retained by a screwed locking ring (Fig. 6, not shown). Specification 784,315 is referred to.
Patent GB-737759-A (GB)
Title: Improvements in or relating to gymnastic vaulting horses
IPC: A63B5/12
Filed: 1953-06-29
Abstract: 737,759. Vaulting-horses. OLYMPIC GYMNASIUM CO., Ltd.. and CAVE T. R. CAVEBROWNE-. May 31, 1954 [June 29, 1953], No. 18004/53. Class 113(1). In a vaulting-horse the top horizontal members 22, 23 of two frames, which cross diagonally and are pivoted to one another to form a support, are held in stirrups 29, 30 on the underside of a padded platform 28, one stirrup 29 being elongated so that the corresponding horizontal member 22 may be moved, to alter the height of the support, by a rotatable shaft 31 which passes through holes in each of the members 22, 23, one end of the shaft being held by a nut 32 and the other end having a thrust bearing 33 and handle 34. The lower horizontal members 15, 16 of the frame form the axles of two pairs of wheels 18 and 20. As shown, members 22, 23 are.tubular and carry members 24, 25 to engage stirrups 29, 30 which are attached to bearers 26 secured to the platform.
Patent GB-227378-A (GB)
Title: Attachment for driving wheels of motor vehicles to enable same to negotiate bog and sandy country without assistance
IPC: B60B15/00
Filed: 1924-07-28
Abstract: 227,378. Jackson, L. A., and McDonald, J. July 28, 1924. Tyres, non-elastic, and rims.-The ring A of a skeleton wheel comprising metal rings A, B connected by metal spokes C, is fitted round the hub of a motorvehicle wheel. the ring B being bolted to the rim D. Angular brackets G carrying paddle-blades H are bolted through locking-pieces J to the spokes C. A modified device comprises carrier arms bolted to the wheel hub and formed with curved plates bolted to the rim. Flanged paddles are bolted to the carrier arms through coupling blocks.
Patent GB-1270771-A (GB)
Title: Erythromycin derivatives
Inventor: PERUN T
IPC: C07H17/08
Filed: 1970-04-15
Abstract: 1,270,771. Erythromycin derivatives. ABBOTT LABORATORIES. 15 April, 1970 [1 May, 1969], No. 18049/70. Heading C2A. Erythromycin derivatives having antibiotic activity of the general formula in which R 1  is H or OH and R 2  is H or an O-C 1-4  alkanoyl provided that when R 2  is H R 3  is also H and R 4  is an O-C 1-4  alkanoyl and when R 2  is O-alkanoyl, R 3  and R 4  are independently selected from H and O-C 1-4  alkanoyl groups, and salts thereof with acids may be prepared from erythromycin as shown in the accompanying flow chart wherein reaction type (1) indicates the reaction of erythromycin or an ester derivative thereof to introduce an ester group only into the unsubltituted 2 position without effecting the 11 or 4<SP>11</SP> positions; (2) indicates the reaction of erythromycin to introduce an ester group into the 2<SP>1</SP> and 4<SP>11</SP> positions without affecting the unsubstituted 11 position; (3) indicates the reaction of erythromycin or an ester derivative thereof to introduce an ester group into the unsubstituted 11 position; and also into the 2<SP>1</SP> or 4<SP>11</SP> positions if they also are unsubstituted; and (4) indicates the hydrolysis of a 2<SP>1</SP> or a 4<SP>11</SP> ester. Examples of erythromycin derivatives prepared include 11-acetyl erythromycins A and B, and 11-formyl erythromycins A and B. Antibiotic compositions for oral administration in the form of tablets or capsules comprise the above erythromycin derivatives and a carrier or filler.
Patent GB-530852-A (GB)
Title: Improvements in and relating to mercury boilers
IPC: F22B3/02
Filed: 1939-06-21
Abstract: 530,852. Mercury vapour generators. BRITISH THOMSON-HOUSTON CO., Ltd. June 21, 1939, No. 18109. Convention date, June 21, 1938. Addition to 464,388. Drawings to Specification. [Class 122 (iii)] In a mercury boiler as described in the parent Specification in which a small quantity of zirconium or titanium is added to the mercury to prevent dissolving of the ferrous tubes of the boiler and to act as a wetting agent, a small quantity of magnesium or calcium is also added to prevent the formation of oxides of titanium or zirconium. Powdered magnesium or calcium may be added to the powdered zirconium or titanium before the latter is treated with mercury to form the wetted particles which are afterwards fed to the boiler.
Patent GB-147352-A (GB)
Title: Apparatus for equalizing the strain on tow-ropes
IPC: B63B21/56
Filed: 1919-07-21
Abstract: 147,352. Archer, W. July 21, 1919. Towing. -A device for resiliently absorbing the jerks in towing- ropes comprises a piston b working in a cylinder a and connected with the towing-rope by pulling tackle e. The piston is pressed towards the bottom of the cylinder by compressed air supplied to the pressure side assisted by springs d. The piston is also provided with valvecontrolled ducts which valves open for pressure on the underside of the piston. Reference has been directed by the Comptroller to Specifications 2156/85, 1491/92, and 119,097.
Patent GB-236396-A (GB)
Title: Improvements in offertory boxes
IPC: A45C1/12
Filed: 1924-07-31
Abstract: 236,396. Staley, F. July 31, 1924. Money, boxes specially designed for; tampering with, preventing.-An offertory or like box is provided with a pivotally mounted bottom 2 adapted to be locked by a screwed bolt 6 which engages an aperture 8 in the rear walls of the box. Access by means of a key &c. to the front of the bolt 6, which is carried within an internally threaded tube 5 carried upon the bottom 2, is normally prevented by a tube 10 which is split at one end - and expanded radially so as to engage the inner walls of the tube 5. The tube 10 is extracted bv engaging a hook &c. in a saw-cut 12 and to prevent matches &c. being inserted therein may be stopped up by a plug 13. Access to the tube may be prevented by a screw inserted in the aperture 11 in the front wall of the box, and a jamb 14 may be provided to prevent movement of the bottom in one direction.
Patent GB-1438918-A (GB)
Title: Flyline for fishing
IPC: A01K91/12
Filed: 1974-04-26
Abstract: 1438918 Fishing lines BERKLEY & CO Inc 26 April 1974 [7 Dec 1973] 18307/74 Heading A1A [Also in Divisions C3 and Dl] A flyline for fishing comprising:-(a) a continuous filament core; (b) a first coating comprising a plastic matrix containing a plurality of first microballoons; and (c) a second coating comprising a plastic matrix containing a plurality of second microballoons of less diameter than the first microballoons. The number of microballoons in the first coating is preferably greater than those contained in the second coating. The second coating may have a hardness exceeding that of the first coating. The microballoons of the first coating have a diameter between 10 and 105 microns; and the microballoons of the second coating have a diameter of 75 microns or less. The second coating may be tapered in diameter along the length of the line. The core may be a braid of multifilament bundles, for example a hollow nylon 'braid of multifilament bundles. In a further embodiment the core is a monofilament, for example of nylon, and there may be a sleeve of multifilament bundles arranged around the core. The density of the first coating may be less than that of the second coating. The first coating may contain between 10% and 11% by weight of microballoons and the second coating may contain between 9% and 10% by weight of microballoons. One of the coatings may include a filler which consists of particulate particles having a density greater than 1.0, and the composite flyline may have a specific gravity greater than 1.0 at various intervals therealong, such as, for example, a tip of specific gravity greater than I so as to achieve a sinking tip feature.