baber/WOPTO huggingface dataset:
Patent GB-973199-A (GB)
Title: Improvements in or relating to roller conveyors
IPC: B65G13/00
Filed: 1963-10-15
Abstract: 973,199. Roller conveyers. H. GUSKE, and E. RAUTENBERG. Oct. 15, 1963 [Oct. 19, 1962], No. 40549/63. Heading B8A. To enable a roller conveyer to be extended, shortened or laid out in curved or snaking formations, the conveyer frame comprises lazytongs sides. As shown, the frame sides are connected by cross-members 6 of which the upper members constitute axles for rollers 2. In Fig. 1, the frame is mounted on supports 7 which have notches 10A and vertical slots 10B to receive two cross-members 6 and two threaded pins 8 respectively. Nuts 9 secure the members 6 and pins 8. The arrangement permits adjustment of the length of the conveyer. At the joints between links 4 and the crossmembers 6 and between the links themselves, play is provided so that curves can be negotiated, Figs. 4a-4c. Alternatively, the hinge points may be provided with friction washers and the nuts 9 dispensed with.
Patent GB-1318441-A (GB)
Title: Instrument for measuring the thickness of layers with radio- active nucleides
IPC: G01B15/02
Filed: 1970-08-25
Abstract: 1318441 Radiation thickness gauge H FISCHER 25 Aug 1970 [10 Aug 1970] 40913/70 Heading G1A In an apparatus using radiation from a nucleide to measure thickness of a material wherein a sighting aid is provided to assist in locating an area the thickness of which is to be determined, the radiation detector is mounted to be movable into and away from its measuring position and the sighting aid is effective only when the detector is in its latter position. The sighting aid may comprise a flying spot scanner tracing out a cross on the surface of the material to be measured or may be merely a mechanical reference point such as a wire tip. The measuring head and sighting aid may be mounted on diametrically opposite sides of a pivot which is itself mounted in a pillar rising from a substantial base plate supporting the material so that the area indicated by the sighting aid is the area monitored by the detector when manically rotated about the pivot levers are provided for rotation, and locking arrangements are incorporated. The nucleide may be in the head for a back scatter measurement, or be let into a recess in the surface of the table and covered by the diaphragm for absorption measurement. The diaphragm may have a cross-shaped aperture and may be, located in the recess to achieve a desired orientation. The optical axis of the scanner may be adjustable and the measuring head may include a lamp for general illumination. Positional calibration by making an impression in a moldable material on the base plate is described.
Patent GB-913714-A (GB)
Title: Improvements in or relating to homogeneous nuclear reactors
IPC: G21C17/028
Filed: 1960-11-30
Abstract: 913,714. Reactors. ALLMANNA SVENSKA ELEKTRISKA A.B. Nov. 30, 1960 [Dec. 2, 1959], No. 41118/60. Drawings to Specification. Class 39 (4). In a homogeneous reactor, having a solution or suspension of fuel in heavy or light water, steam is produced by boiling and the gaseous fission products are removed from the steam by a current of a permanent gas. The gases are passed continuously through the reactor steam zone and the relative volumes of gas and steam are chosen so that the greater part of the fission products are retained by the gas and a relatively small part by the reactor core. The gas may be deuterium, helium, oxygen, hydrogen, nitrogen, neon, argon and the suspension fuels may be uranium and thorium oxides, while uranium sulphate may be used in solution.
Patent GB-913856-A (GB)
Title: New monoazo dyestuffs
Inventor: BARKER PETER WILLIAM
IPC: C09B29/08
Filed: 1959-12-03
Abstract: Compounds of the general formula <FORM:0913856/IV (b)/1> wherein R1 stands for an alkyl radical of from 1 to 4 carbon atoms, or for the group CH2CH(OR2)CH2CN wherein R2 stands for hydrogen are obtained by reaction of the appropriate N - (g  - chloro - b  - hydroxypropyl) compounds with sodium cyanide.  The corresponding compounds in which R2 stands for an alkoyl or aroyl are obtained by treating the hydroxy compounds with the appropriate acid anhydrides or chlorides optionally in the presence of pyridine.  The products are intermediates used in the manufacture of azo dyes (see Group IV(c)). The preparation is described of N-methyl-N-(g -cyano-b -hydroxypropyl)aniline and the corresponding b -acetoxy compound.ALSO:The invention comprises dyestuffs of the formula <FORM:0913856/IV (b)/1> wherein A stands for a mono- or bi-cyclic radical of the aromatic series free from sulphonic or carboxylic acid groups, R1 stands for an alkyl radical of from 1 to 4 carbon atoms, which may carry substituents other than sulphonic and carboxylic acid groups, of for the group <FORM:0913856/IV (b)/2> stands for hydrogen or an alkoyl radical of from 1 to 4 carbon atoms or an aroyl radical, and the benzene nucleus B may carry substituents other than sulphonic and carboxylic acid groups and a process for the manufacture thereof which comprises coupling a diazotised amine of the formula A-NH2 with a coupling component of the formula <FORM:0913856/IV (b)/3> wherein A, B, R1 and R2 have the meanings given above or treating a monoazo dye as defined above wherein R2 stands for hydrogen with an anhydride or acid halide of an alkyl carboxylic acid of from 1 to 4 carbon atoms or an aryl carboxylic acid.  The radical A may be phenyl, a - or b -naphthyl, thiazol-2-yl or benzthiazol-2-yl and may be substituted, e.g. with nitro, cyano, thiocyano, carbalkoxy, alkylsulphonyl and halogeno substituents.  The radical R2 may be acetyl, benzoyl, p-toluyl or p-methoxybenzoyl.  The radical R1 may be methyl, b -hydroxy, b -acetoxy or b -methoxyethyl. Substituents present in the nucleus B may be methyl, chloro, bromo, methoxy and acetamido.  Examples are furnished.  The coupling components may be prepared by reacting appropriate N-(g -chloro-b - hydroxypropyl)-anilines with sodium cyanide and acylating the products (see Group IV(b)).
Patent GB-1113170-A (GB)
Title: Paper hand towel dispenser
IPC: A47K10/44
Filed: 1966-09-15
Abstract: 1,113,170. Feeding sheets. C. W. SCHNYDER. 15 Sept., 1966 [27 Sept., 1965], No. 41259/66. Heading B6B. A paper hand-towel dispenser has a casing for receiving a stack of individual hand-towel paper sheets 4, carried on an intermediate floor 3, a feed roller 9 carrying several horizontal rows of pins 10 projecting through slots in floor 3 and rotatably mounted for delivering single sheets through slot 6. The roller has a shaft 9a carrying a disc 11 with a stop 11a projecting from its periphery for co-operation with spring-biased pawls 12 pivotally mounted on the casing to hold disc 11 and hence roller 9 against rotation. A rotatable driving member 15 is mounted coaxially with roller 9 and connected thereto through spring 14 in recess 13 via pin 15a, which spring attempts to turn the roller with it upon rotation of member 15 which moves pin 15a round recess 13. A manually-operable member 17 projects from the casing, is rotatably mounted on shaft 9a and is connected to member 15 through a one-way clutch consisting of leaf spring 18 engaging surfaces 19. Arm 17c on member 17 is provided with a pin 17d which co-operates with arm 22 for pressing together movable suction cup 21 and fixed cup 20, the movable cup being connected to catch member 24 co-operating with an abutment on member 17 when the suction cups are pressed together. A cam formation including pin 15b carried on member 15 is adapted to release a pawl 12 during movement of member 15 by operation of member 17 only, after the suction cups have been pressed together by engagement of pin 17d with arm 22. In operation lever 17 is rotated counterclockwise and carries disc 15 with it. Somewhat before completion of this rotation, pin 17d actuates arm 22 and presses cups 20 and 21 together. Shortly afterwards pawl 12 is released by pin 15b, disc 11 and roller 9 rotate and a towel is delivered. When lever 17 is returned to its initial position (e.g. by a spring), pin 17d knocks aside lever 24 which lever, when the cups 20 and 21 are engaged, returns after this displacement to a position such that its lower end is above pin 17d thus locking the mechanism until the cups 20 and 21 have become separated. There may be three or four rows of pins 10 delivering the paper towel in 1/3 or 1/4 of a turn respectively of roller 9, and there are a corresponding number of surfaces 11a. Compression spring 14 may be replaced by a torsion spring. A bar 8 is mounted to be vertically movable in guides 7 and acts as a weight for the stack of sheets 4.
Patent GB-1263262-A (GB)
Title: Improvements in commutation circuits
Inventor: GURWICZ DAVID
IPC: H02M1/06
Filed: 1968-02-06
Abstract: 1,263,262. S.C.R. circuits. SEVCON ENG. Ltd., and RANSOMES SIMS & JEFFERIES Ltd. 5 Feb., 1969 [6 Feb., 1968], No. 41488/71. Heading H3T. [Also in Divison H2] The subject-matter of this Specification is identical with that described in Specification 1,263,261 but the claims are concerned with a circuit for simultaneously commutating a plurality of semi-conductor switching devices. As shown, closure of switch 23 charges capacitor 18, which is reverse charged when a pulse from a master oscillator triggers thyristor 22. The supply of pulses to the gates of main thyristors 4, 5, from the master oscillator by way of delay circuits causes current-flow through motors 1, 2, until thyristor 17 is fired by a signal from a pulse-width regulating circuit whereupon thyristors 4, 5, are commutated. The capacitor 18 is discharged through the battery and then forward charged in excess of the battery voltage through the motors, diodes 15, 19, inductor 16 and the thyristor 17. The latter then becomes non-conductive and the cycle is repeated by firing thyristor 22. A bridge network of thyristors may be provided in series with an inductor for charging the commutating capacitor which is connected in the bridge. Pairs of thyristors in pairs of opposed arms are rendered conductive in sequence whereby the capacitor is alternately forward charged and then presented to the main thyristors with its polarity appropriate for commutation, Fig. 7 (not shown). In another arrangement the commutating capacitor is charged through the secondary winding of a transformer. A thyristor then connects the positive plate of the capacitor to the negative side of the battery, the primary winding of the transformer presenting a high impedance at this stage. As the capacitor plate which is connected to the transformer primary winding is driven negative, the main thyristors are commutated simultaneously, Fig. 8 (not shown). In a further embodiment, the capacitor is charged through a first inductor and a thyristor to a level above the supply potential. The capacitor is then reverse charged by a second inductor in series with another thyristor and in shunt with the capacitor. At the end of a fixed period, the first thyristor is rendered conductive to commutate the main thyristors, Fig. 9 (not shown).
Patent GB-1237035-A (GB)
Title: Magnesium-base alloy for use in bone surgery
Inventor: STROGANOV GENRIKH BORISOVICH
IPC: C22C23/06
Filed: 1969-08-20
Abstract: 1,237,035. Mg alloys. TSENTRALNY INSTITUT TRAVMATOLOGII I ORTOPEDII. Aug. 20, 1969, No. 41577/69, Heading C7A. Mg-base alloys for use as joining means in bone surgery consist by weight, of rare earth element 0À4 -4% Cd 0À05-1À2% Ca or Al 0À05-1% Mn 0À05-0À5% Ag 0-0À8% Zr 0-0À8% Si 0-0À3% Mg balance Nd and Y are the preferred rare earths. Since the alloy is completely absorbed by the body, a second operation on the patient for removal of the joining means is unnecessary.
Patent GB-1026038-A (GB)
Title: Copolymer compositions having reduced inflammability
IPC: C08L55/02
Filed: 1964-10-12
Abstract: A flame-resistant composition comprises an acrylonitrile butadiene/styrene terpolymer and an after chlorinated polyvinyl chloride.  The after chlorinated polyvinyl chloride may be present in amount from 30 to 50% of the total composition, or if an antimony-containing compound is present in amount from at least 10% of the total composition.  Specified antimony-containing compounds are the triphenyl, trichloride, trisulphide, acrylate, oxide and potassium-antimonyl tartrate.
Patent GB-1436135-A (GB)
Title: Colbat and zinc ferrites and magnetic recording tape thereof
IPC: C09D5/23
Filed: 1973-09-05
Abstract: 1436135 Acicular zinc cobalt ferrite RCA CORPORATION 5 Sept 1973 [7 Sept 1972] 41693/73 Heading C1J A ferrite comprises magnetic acicular iron oxide particles containing 1-20 mol per cent colbalt oxide, 1-20 mol per cent zinc oxide and 4-22 wt. per cent divalent iron wherein the mol per cent of ZnO is at least equal to that of the cobalt oxide. It may be made by admixing aqueous solutions of a cobalt salt and a zinc salt, adding NH 3 , adding acicular iron oxide particles, stirring vigorously and heating to evaporate NH 3 , filtering or centrifuging, drying, crushing and firing (e.g. at 225-320‹ C.) in a reducing atmosphere (e.g. H 2  or H 2  admixed with an inert gas such as N 2  or He). Magnetic tape can be made by admixing the ferrite with a non- magnetic binder, applying to a substrate, orientating particles with a magnetic field and curing.
Patent GB-1008665-A (GB)
Title: Improvements in or relating to looms
IPC: D03C1/22
Filed: 1962-11-05
Abstract: 1,008,665. Looms. RUTI MACHINERY WORKS Ltd. Nov. 5, 1962 [Nov. 3, 1961], No. 41841/62. Heading DIE. In a loom pattern mechanism, a row of feeling needles 13, 14 for odd and even picks respectively are mounted upon a frame 15-17 for co-operating with rows of holes in a pattern card 10. The card is stepped around for each pick of the loom by a cam disc 48 and pawl mechanism 50-61, and the needle frame 15-17 is moved towards and away from the card by a cam 46 actuating an arm 18 carrying the frame. Each pair of needles 13, 14 is urged down on to a plate 26 by springs 24, 25 and each plate 26 is associated with a lever 31 pivotally supported between fixed plates 33, 33a and coupled to a Bowden cable 34 for actuating the selector mechanism of the loom dobby. When the needle frame is moved towards the card for a reading the needles which encounter holes pass therethrough as in Fig. 4 and are held relative to the frame by a spring-urged catch plate 29 common to all the needles engaging behind shoulders 20 on the needles to lock the plate 26 on to the part 16 of the frame. This plate thereby depresses the respective lever 31 to actuate its Bowden cable and hence the dobby selector mechanism. The needles which do not engage holes the pattern card are lifted relative to the frame and are not held by the catch 29 so that the plate 26 is not operative, Fig. 4a, to depress the respective lever 31. On the upward movement of the needle frame the catch plate 29 is moved by a lever 38 engaging a fixed member 43 to release all the held needles ready for the next reading.
Patent GB-861610-A (GB)
Title: Improved spring-loading plates for single and multi-ringed check valves
Inventor: MIEBACH HUBERT
IPC: F16K15/12
Filed: 1958-12-29
Abstract: 861,610. Valves. SUPE-DIENES, L., [trading as DIENES, K. R. [Firm of]]. Dec. 29, 1958, No. 41923/58. Class 135. [Also in Group XXXII] An annular spring-loading plate, Fig. 1, for a slotted plate type check-valve as used, e.g., in compressors, has two series of arcuate spring tongues 11, 14, respectively bent out of the plane of the plate and integral each at one of its ends with the plate, these two series of tongues being cut alternately round the plate from its inner and outer periphery respectively, the area of the plate not so cut and bent presenting a closed continuous bearing surface having portions as shown located alternately at the inner and outer periphery of the plate in opposite sequence to the spring tongues. In another embodiment of the loading plate, Fig. 2, two alternate series of outer and inner spring tongues 62, 63 respectively correspond to the tongues 11, 14 of Fig. 1, and two additional series of spring tongues 64, 65, respectively, also bent out of the plane of the plate, are provided intermediate the inner and outer peripheries of the plate in radial alignment and concentric with the tongues 62, 63. The loading-plate of Fig. 1 is intended to load a single valve-plate, whilst that of Fig. 2 is for loading two independent concentric valveplates, illustrated in Fig. 3 ; tongues 62, 65 press upon the outer of these two plates whilst the tongues 63, 64 press upon the inner valve plate. The free ends of the tongues may be bent back slightly towards the plate.
Patent GB-1203093-A (GB)
Title: Implant prostheses for dentistry.
Inventor: EDELMAN ALFRED EDWARD
IPC: A61C8/00
Filed: 1967-09-15
Abstract: 1,203,093. Dental posts. A. E. EDELMAN and L. I. LINKOW. 15 Sept., 1967, No. 42255/ 67. Heading A5R. An implant post, for dentistry comprises an intra-osseous portion extending from a coronal portion, the intra-osseous portion having a radially vented axially extending cavity which is open at the end of the intra-osseous portion remote from the coronal portion. As shown, the coronal portion includes a screw 38 for securing a coping &c., and the intra-osseous portion comprises two ribs 37 supporting a thread 36. Alternative posts have intra-osseous portions comprising a cage-like structure (Figures 3-6, not shown), a threaded part and an openwork part (Figure 10, not shown), an apertured hollow part (Figure 8, not shown), a hollow part supporting a spring member (Figures 9, 10, not shown), or one or more helical screw members (Figures 11, 12, not shown).
Patent GB-916657-A (GB)
Title: New hydrazones and their use in colour photography
IPC: G03C7/30
Filed: 1959-12-11
Abstract: The invention comprises hydrazones of the formula:-  <FORM:0916657/IV (b)/1> wherein R1 and R2 each represent a hydrogen atom or an alkyl, aryl, aralkyl or heterocyclic radical (e.g. benzofuran, benzimidazole, indole or pyridine), or R1 and R2 together represent the atoms necessary for closing (a) a substituted or unsubstituted isocyclic ring, 6-membered heterocyclic ring or 5-membered heterocyclic ring containing only nitrogen and/or oxygen as hetero-atoms, or (b) an unsubstituted 5-membered heterocyclic ring containing sulphur as a ring member, it being possible for said heterocyclic rings to be fused to a benzene ring, and R3 and R4 each represent a substituted or unsubstituted aromatic or heterocyclic radical attached by means of a ring atom to the hydrazone nitrogen atom. The R3 and R4 radicals may have as substituents chlorine and sulpho, sulphomethyl, arylsulphanyl, sulphamoyl, carboxyl, hydroxy, methoxy, ethoxy, octadecoxy, dodecyloxy, phenoxy, phenylamino, methylstearylamino, oxalylamino, ethyloxalylamino, acetamido, nitro and methyl radicals.  The above hydrazones (osazones) are prepared by the following methods:- (1) symmetrical osazones are prepared by reacting 1 mol. of an appropriate 1,2-dicarbonyl compound with 2 mols. of an appropriate hydrazine; (2) asymmetrical osazones are prepared by reacting equimolar amounts of appropriate 1,2-dicarbonyl compound and appropriate hydrazine to form a monohydrazone which is then reacted with a further mol. of another appropriate hydrazine; (3) a monoxime of an appropriate 1,2-dicarbonyl compound is reacted with an equimolar amount of an appropriate hydrazine to form an oximehydrazone and the latter is then reacted with a further equimolar amount of an appropriate hydrazine to form an osazone while splitting off hydroxylamine; (4) an appropriate a -hydroxyaldehyde, a -chloroaldehyde, a -hydroxyketone or a -chloroketone is reacted with an excess of an appropriate hydrazine to form an osazone; (5) an appropriate carbonyl compound having a methylene group adjacent to the carbonyl group is coupled with a diazonium salt to form the monohydrazone and the latter is then reacted with an appropriate hydrazine, viz., <FORM:0916657/IV (b)/2> (6) as in (5) but using an a -methylene carbonyl compound which is activated by a negative group such as an ester, cyano or acyl group or a halogen atom, and in the case of ester and cyano groups, removing such groups subsequently; and (7) osazones of a -ketoaldehydes are reacted with diazonium compounds, viz., <FORM:0916657/IV (b)/3> The osazone products may be converted into salts with alkali metals, ammonia and amines. 4-Isododecyl-chloracetophenone is prepared chloride.  Specification 698,046 is referred to.
Patent GB-983950-A (GB)
Title: Improvements in or relating to cards adapted to contain information and methods of producing same
Inventor: ALLEN ARTHUR FREDERICK
IPC: G06K19/02
Filed: 1963-10-25
Abstract: 983, 950. Record cards. ROLLS-ROYCE Ltd. Oct. 25, 1963, No. 42294/63. Heading G4M. A card, sheet or plate which may be of metal or of a fibrous material, is provided with rows of holes, each of which contains a filler material 14, Fig. 5, or a filler member 16, Fig. 7, the filler material or member being removable in order to record information for the control of business or manufacturing machines. In filling the holes with plastic material 14 such as a heat-settable PVC plastisol material, the holes are preferably radiused, countersunk or chambered as at 18, Fig. 5, a thin backing sheet is provided on one face of card 12, the filler material is run in, the card is heated to harden and cure the filler material 14, and the backing sheet is removed. It it is desired to change the information represented by a set of holes in the card, the holes may be filled with a cold-setting resin, and the filler material 14 punched out in the required new positions. The filler member 16 of Fig. 7 may be a glass or metal ball and may be retained in the hole by means of plastic or other hardenable coatings 17.
Patent GB-1011682-A (GB)
Title: Improvements in or relating to methods of forming composite plastic sheet materials
IPC: D06N3/00
Filed: 1961-11-27
Abstract: 1,011,682. Moulding thermoplastic sheets; laminates. ARMSTRONG CORK CO. Nov. 27, 1961 [Nov. 29, 1960], No. 42386/61. Headings B5A and B5N. Composite plastics sheet material is formed by applying granules, preferably coloured, of a vinyl chloride polymer or chloride-acetal copolymer to a sheet of backing material, e.g. of rubber/asbestos, contacting the combination with a release paper coated with a first layer consisting of a mould release agent and a second layer comprising a thermoplastic synthetic resin and applying heat and pressure to fuse the granules on to the backing paper and to transfer the resinous layer to the surface of the fused vinyl polymer or copolymer. The release agent may be a complex compound of the Werner type in which a trivalent nuclear chromium atom is co-ordinated with an acyclic carboxylic acido group having at least ten carbon atoms. The moulded sheet material may be used as a floor or wall covering. Coating substances used include polyvinyl chloride/ acetate, polyacrylate solution in toluene, polyvinyl butyral latex, vinyl acetate/acrylic copolymer in aqueous emulsion, polyvinylidene chloride latex, and ethyl acrylate/methyl methacrylate copolymer emulsion.
Patent GB-1435403-A (GB)
Title: Apparatus for packing articles into a container
IPC: B65B5/06
Filed: 1974-02-01
Abstract: 1435403 Packaging articles in groups INDAG GES FUR INDUSTRIEBEDARF mbH 1 Feb 1974 [30 March 1973] 42425/75 Divided out of 1435402 Heading B8C The packaging apparatus described and claimed in this Specification is the same as that described in Specification 1,435,402.
Patent GB-1366328-A (GB)
Title: High speed photoresists
IPC: G03F7/008
Filed: 1971-09-13
Abstract: 1366328 Aromatic azido compounds INTERNATIONAL BUSINESS MACHINES CORP 13 Sept 1971 [29 Sept 1970] 42503/71 Heading C2C [Also in Divisions G2 and C3] P-azidocinnamaldehyde is prepared by mixing p-azidobenzaldehyde and acetaldehyde and adding caustic potash followed by addition of acetic anhydride and heating on a steam bath. This product is mixed with (a) 4-methylcyclohexanone, (b) cyclohexanone, or (c) acetone, aqueous caustic soda and ethanol to produce (a) 2,6 - bis - (p - azidocinnamylidene) - 4 - methylcyclohexanone, (b) 2,6 - bis - (p - azidocinnamylidene) - cyclohexanone or (c) 1,9 - bis - (p - azidophenyl-1,3,6,8-nonatetraene-5-one. Reference has been directed by the Comptroller to Specification 892,811.