baber/WOPTO huggingface dataset:
Patent GB-1374861-A (GB)
Title: Reactor fuel assemblies
IPC: G21C3/356
Filed: 1972-03-10
Abstract: 1374861 Fuel elements ATLANTIC RICHFIELD CO 10 March 1972 [18 March 1971] 11387/72 Heading G6C A nuclear reactor fuel assembly includes a frame and associated grid spacer for supporting fuel rods in a desired spaced relationship, the grid spacer including a grid having square openings and springs mounted on the grid to provide each rod with resilient supporting contacts on all four sides of the openings, through each of which a fuel rod extends. The spacer comprises a plurality of support strips B-C, B-R assembled in "egg-crate" fashion and secured to the frame F by tabs tb. The springs S each comprise one finger 15 integral with a support strip 17, the other spring of the pair being a similar finger 15 brazed at each end to the first finger. The fingers are of flared-base configuration and carry contact pads d against which the fuel rods (R) bear. Each fuel rod (R) is contacted by four of the springs S at right angles to each other. The frame and grid spacer may be of stainless steel or zirconium alloy, as may the cladding of the fuel rods (R). Each of the pairedbow springs provides a contact spring of a desired minimum stiffness to effectively eliminate all significant vibrational excursions of the rod. Each of the rods has a maximum anticipated lateral displacement and each of the springs is arranged to exhibit sufficient elastic springback to follow its associated rod without losing contact therewith and is also arranged to exhibit a "preset" capability, sufficient to accommodate this displacement, yet without affecting springback. The frame and grid spacer have sufficient strength that the grid system is incapable of being substantially distorted or weakend by rod elongation. A plurality of these frames and associated grid spacers is arranged in spaced relationship along the fuel rods, thereby dividing each rod into a number of spans and raising its natural vibrating frequency to increase its effective stiffness and resistance to vibration.
Patent GB-165026-A (GB)
Title: Improvements in lasting machines for boots and shoes
IPC: A43D21/12
Filed: 1920-02-14
Abstract: 165,026. Denne, M. T. Feb. 14, 1920. Lasting.-In an end-lasting machine in which wiper-plates are carried by a holder rotatable in a support to reverse the wiper-plates so that both faces alternately of the wiper-plates may be presented to the work to operate on alternate right and left shoes, adjustable stops are provided to locate the two positions of the plates, which stops are simultaneously movable relatively to each other so that the two positions of the wiper plates are at opposite angles to the horizontal. The invention is described applied to the machine described in Specification 164,804. The wiper plates 50, 51, Fig. 2, are carried by a holder 57 rotatable in a bearing 58. The plates are held in either position by a spring plunger 135 engaging a recess in one of two half rings 122<a>, Fig. 3, which can slide relatively to each other in a recess 121<a> in the bearing 58. The half rings each carry a pin 124, 125 engaging annular grooves in nuts 128, 129 on a threaded spindle 130. The screwthreads in the two nuts are of opposite sense, so that rotation of the spindle 130 shifts the two half rings relatively to each other, with the effect that when the wiper plates have been adjusted to a particular angle by rotation of the spindle 130 with the plunger 135 in its advanced position, withdrawal of the plunger and rotation of the holder until the plunger snaps into the opposite, recess will bring the reversed wiper plates to the correct angular position for the other shoe of a pair.
Patent GB-129449-A (GB)
Title: Improvements in and relating to Electric Locomotives or Cars.
IPC: B61F5/24
Filed: 1918-07-12
Abstract: 129,449. British Thomson - Houston Co., (General Electric Co.). July 12, 1918. Axle-trucks and bogies.-An electric locomotive comprises a pair of running sections each comprising a truck rigidly mounted on a main frame and connected to a second truck the outer end of which is connected to the frame at a point above the truck by means which permit relative transverse movement, and maintain a centring effort on the trucks. The end trucks are provided with brackets 12 on which rollers 16, mounted on the main frame ride. The axles 17 of the rollers 16 are camed in bearings 15 mounted so as to rotate in a bracket 14.
Patent GB-569610-A (GB)
Title: Improvements in or relating to friction clutches
IPC: F16D13/56
Filed: 1943-07-14
Abstract: 569,610. Friction clutches. CROFT, A. July 14, 1943, No. 11447. [Class 80 (ii)] A clutch is actuated by radial movement of balls 3 located between inclined faces 4, 5 on a collar 6 and on a slidable sleeve 15 having splined thereto a sleeve 16 which transmits the actuating movement to the clutch friction faces. Springs 17 are located between the sleeves 15, 16, and the relative axial movement of the sleeves is limited by an abutment 19 on one of the sleeves. The balls 3 are actuated by a cam face on a slidable sleeve 1. Clutch disengaging springs 24 are arranged between the driving sleeve 7 carrying the driving plates of the clutch and the sleeve 15. The position of the normally fixed collar on the sleeve 7 is adjustable. In the case of a conical clutch, one of the conical faces is formed integrally with the sleeve 16.
Patent GB-714368-A (GB)
Title: Interpolymers of styrene with polymeric derivatives of diolefines
Inventor: MORRIS EARL DEAN
IPC: C08F279/02
Filed: 1952-05-06
Abstract: Styrene is interpolymerized with an unsaturated rubbery polymer or copolymer of an aliphatic conjugated diolefine having 4 to 6 carbon atoms in the diolefine molecule, by heating en masse in a closed vessel at between 50 and 100 DEG C. 98 to 85 parts by weight of styrene, 1 to 15 parts of the rubber and 0.5 to 5 per cent. by weight of one or more higher fatty acids having at least 12 carbon atoms in the molecule and free of conjugated olefinic linkages, or one or more esters thereof with saturated aliphatic alcohols having less than 7 carbon atoms in the molecule, until approximately half the styrene is polymerized, and then bringing the temperature to between 100 and 240 DEG C. while preventing the mixture from becoming heated to above 175 DEG C. for more than 10 hours during the reaction.  The rubber may be natural rubber or styrene-butadiene-1, 3, acrylonitrile-butadiene, styrene-isoprene, acrylonitrile-isoprene, and styrene-2, 3-dimethylbutadiene copolymers, and the fatty acids may be lauric, tetradecanoic, palmitic, stearic, or mixtures and the esters may be those with mono- or polyhydric alcohols such as ethylene, propylene, and diethylene glycols, glycerol, sorbitol, pentaerythritol or mixtures thereof.  Examples are linseed and soyabean oils, ethylene glycol or diethylene glycol distearate, refined animal fats, ethylene or propylene glycol dipalmitate, glycerol tristearate or tripalmitate, pentaerythritol tetrastearate, sorbitan tetralaurate, ethylene glycol dilaurate, ethyl, propyl, isopropyl, butyl and amyl stearates, and butyl and amyl palmitates.  Catalysts such as acetyl, benzoyl or lauroyl peroxides may be used.  The product may be heated under vacuum to volatilize the styrene and mechanically worked, e.g. by milling at temperatures between 100 and 200 DEG C., or by stirring during the polymerization before moulding to give improved physical characteristics.
Patent GB-888462-A (GB)
Title: Improvements relating to step-by-step motors
Inventor: ROSS GEOFFREY
IPC: H02K37/14
Filed: 1957-04-09
Abstract: 888,462. Electric motors. FERRANTI Ltd. April 8, 1958 [April 9, 1957], No. 11471/57. Class 35. In a step-by-step motor having interdigitated rotor poles excited by a permanent magnet, alternate stator poles c are shaded by means of a laminated copper shading-ring d, the unshaded poles h projecting from a disc e,f lying under the shading-ring and being a press-fit in the magnetic housing a. The stator is completed by a second dish-shaped housing (not shown) interfitting with housing a and having similar poles projecting in the opposite direction. The poles may be radially instead of cylindrically arranged, and may be irregularly spaced.
Patent GB-630586-A (GB)
Title: Improvements in or relating to overload current-limiting systems for electric circuits
IPC: H02H9/02
Filed: 1947-04-29
Abstract: 630,586. Protective cut-out arrangements. FKG F. KESSELRING GERATEBAU AKT.-GES. April 29, 1947, No. 11501. Convention date, April 29, 1946. [Class 38(v)] A current-limiting system comprises. normally-ineffective impedance means which limit the load circuit current in response to overload therein, and inductance means for limiting the overload current to not more than twice, and preferably 1.3 times, the response value of a coil 12 during the response interval of the impedance means. In Fig. 2, normally-open contacts 13, 14 of relays 10, 20 close when coils 11, 12 are energized respectively by high rate of increase in a choke coil 2, forming the inductance means, and by overload in a series resistance 16. The coil 8 is thereby energized and releases a latch 7 which allows a spring 4 rapidly to insert the current-limiting impedance means 6. The choke coil 2 may have an air or air-gapped iron core. In a modification, Fig. 3, the choke coil is replaced by a transformer 22, the primary 23 of which is connected in the load circuit, and the secondary 24 of which has a normally short-circuited resistor 25 connected across it. The primary 23 normally has a low impedance and the transformer is so dimensioned that its short-circuit stray field and time constants are those required to make the primary 23 initially limit the rate of current increase. On overload, a relay 31 connected across a resistance 32 is energized to close contact 33 and energize coil 28 which opens contact 26, so that the resistor 25 is made effective to reduce the load of transformer 22 and the primary 23 assumes a high inductive resistance. The resistance 25 may have a high positive resistance / temperature coefficient so that finally the full no-load inductance is effective. The Specification as open to inspection under Sect. 91 states also that the impedance control means of Fig. 3 may additionally be made responsive to rate of current increase by connecting a relay across primary 23, and that the coil 28 may also control a second contact to open the load circuit. This subject-matter does not appear in the Specification as accepted.
Patent GB-974334-A (GB)
Title: Vitamin b antagonist factor and the preparation thereof
IPC: C12P19/42
Filed: 1961-03-29
Abstract: A derivative of vitamin B12, said derivative being antagonistic to vitamin B12 and being a compound in which one particular amide group of vitamin B12 is replaced by a carboxylic acid group, is obtained in a process which comprises fermenting the vitamin B12 antagonist-producing microorganism Propionibacterium shermanii PBS 77 to produce a fermentation broth containing said derivative of vitamin B12, and then separating the said derivative of vitamin B12 from the vitamin B12 and other ingredients of the fermentation broth.  The separation includes one of the following steps: (a) solvent extraction using a water insoluble organic solvent at pH7 to remove the vitamin B12 in the solvent layer followed by solvent extraction using a water insoluble organic solvent of the aqueous layer at pH 2-4.5 to obtain said derivative in the solvent layer; (b) adsorbing the derivative of vitamin B12 on to an alkaline anion exchange resin; (c) electrodialysis.  A pharmaceutical composition containing said derivative of vitamin B12 together with a pharmaceutical carrier or excipient, is suitable for intramuscular injection against polycythaemia.
Patent GB-391970-A (GB)
Title: Improved method of obtaining photographic contrasts by means of diazonium compounds
IPC: G03B27/30
Filed: 1932-04-22
Abstract: 391,970. Photographic seasitive materials. NAAMLOOZE VENNOOTSCHAP PHILIPS' GLOEILAMPENFABRIEKEN, 13D, Emmasingel, Eindhoven, Holland. April 22, 1932, No. 11645. Convention date, May 22, 1931. Drawings to Specification. [Class 98 (ii).] Photographic prints are produced by means of a carrier provided with a diazo-compound which on exposure to light in the presence of water forms primarily a phenol so substituted in the benzene nucleus that it'can be oxidized by the diazo-compound, or by a second diazocompound present in the layer, to form a coloured compound, the medium of the carrier being non-alkaline so that the speed at which the oxidation takes place is greater than that at which the diazo-compound couples with the phenol to form an azo-dyestuff, but during the exposure is smaller than that at which the diazo-compound is converted by the exposure, the unchanged diazo-compound oxidizing the phenol to form a coloured body after the exposure. Suitable diazo-compounds for the process are those having at least one hydroxyl group in ortho or para position to the diazonium group and those in which the hydroxyl group is replaced by an amino group, one of the hydrogen atoms of which may be replaced by an alkyl or aryl radicle. Examples are given of the use of ortho- or para-hydroxybenzene diazonium chloride, 1-hydroxy-2-diazo-4-benzene sulphonic acid, para-phenylaminobenzene diazonium chloride and ortho-phenol diazonium sulphate. The carrier used may be paper or the material known under the registered Trade Mark " Cellophane." The material is exposed under a drawing to a source of strongly actinic light, and subsequently to daylight or light of less actinic value without the drawing, and may also be submitted to moderate heating. The excess of diazo-compound can be subsequently washed out with water or dilute aqueous ammonia and the layer may also be treated with an ammoniacal solution of copper, or a copper salt may be incorporated in the layer. It is stated that diazoanhydrides are not suitable for the process.
Patent GB-858605-A (GB)
Title: Improvements in or relating to record sensing arrangements
Filed: 1958-04-14
Abstract: 858,605. Sensing record cards. INTERNATIONAL BUSINESS MACHINES CORPORATION. April 14, 1958 [April 12, 1957], No. 11732/58. Class 106 (1). A sensing device for punched record cards has pins 6 for each hole position of the card urged upwardly by blade springs 8, each of which co-operate with a contact 9 when the associated pin passes through a hole in the card to complete an electrical circuit and to limit the projection of the pin. The pins are normally held withdrawn by a member 10 to allow the card to pass into position between a block 2 and guide plate 1. When the card is in position the member 10 is raised to allow sensing to take place, the stroke of the sensing pins being adjustable by moving the contacts 9. A plurality of sensing pins may be arranged in staggered pairs. The pin 6 and contact spring 8 may be a single L-shaped piece.
Patent GB-112788-A (GB)
Title: Improvements in Air Supply and Respiratory Apparatus in Diving and like Apparatus.
Inventor: DAVIS ROBERT HENRY
IPC: B63C11/22
Filed: 1916-08-18
Abstract: 112,788. Davis, R. H. Aug. 18, 1916. Divers, a i r supply for. - A divers' helmet a with air - inlet valve c<1> is provided with a breathing mask b fitted with an airinlet valve c opening to the helmet and with an outlet pipe i opening through a valve h to a chamber g formed within the helmet by a rigid or flexible partition f. The partition f cuts off the usual outlet valve d from direct communication with the interior space of the helmet. In modifications, the outlet valve h may be mounted at the mask end of the pipe instead of on the partition f, an additional flexible or rigid chamber may be interposed between the mask and the chamber g, or an additional chamber similar to g may be used in connexion with the air inlet of the helmet and connected by a pipe to the inlet valve c of the mask b, said pipe having holes to allow a portion of the air to enter the interior space of the helmet. The apparatus may be used for divers' helmets or in divers' bells or submarine boats and may receive air from an external source or from a supply carried by the wearer. Specification 609/12 is referred to.
Patent GB-118017-A (GB)
IPC: B23B27/06
Abstract: 118,017. Ifanger, E. Oct. 30, 1917. Taps; tools. - A screwcutting tool such as shown has one flank f of the thread formed by a helical surface corresponding to the thread to be cut, the other flank g being a helical surface of smaller pitch than the flank f or a conical surface, the apex of which is in the axis of the tool. The thread may be formed on a plate secured to the carrier b. The threads of taps may have a similar formation.
Patent GB-1519943-A (GB)
Title: Lubricating oil additive
IPC: C07F3/00
Filed: 1977-03-21
Abstract: 1519943 Lubricants CHEVRON RESEARCH CO 21 March 1977 [24 March 1976] 11884/77 Heading C5F [Also in Division C3] Lubricating oils comprise, as a rust inhibiting additive, a group II metal salt of an oil soluble hydrocarbyl sulphonic acid (I) and a group II metal salt of a polyoxyalkylated sulphuric acid having M.W. 500-5000 (II). I may be a Ca, Ba or Mg salt of a petroleum-, polyalkylbenzene- or polyalkylene-sulphonic acid. II may be derived from an oxyalkylation product of a C 2-20  polyol containing 2-4 hydroxyl groups. The additive may be prepared by reacting a mixture of alkali metal or amine salts of I and II with an inorganic group II metal salt, e.g. CaCl 2  or MgCl 2 . The additive may be present in the lubricant at 10-10,000 p.p.m. The lubricant may also contain an alkaline earth metal carbonate dispersed by known dispersants in an amount to provide an alkalinity value of 0À5-100 mg. KOH/g.
Patent GB-1038754-A (GB)
Title: A process for the preparation of cyclohexenes
IPC: C07C5/05
Filed: 1965-03-19
Abstract: Cyclohexene or mono-alkylcyclohexens are obtained by hydrogenation of the corresponding 1,4-cyclohexadiene in the presence of a Group 8 metal, preferably at 0-100 DEG C.  A hydrocarbon solvent may be added.  The amount of catalyst used is preferably 0.001-10% by weight of the cyclohexadiene.
Patent GB-117971-A (GB)
Title: Improved Means for Securing the Cylinders of Internal Combustion Engines.
Inventor: SCOTT BATEMAN DAVID
IPC: F02F1/04
Filed: 1917-08-21
Abstract: 117,971. Scott, B. D. Aug. 21, 1917. Cylinders, mounting.-In a radial multi-cylinder engine, teeth F and recesses E are formed on the cylinders and corresponding recesses and teeth on the crank case, so that the cylinders can be inserted or withdrawn on bringing the teeth and recesses into register. The crank case is in two halves held together by bolts, which engage holes K and are loosened when inserting the cylinders. The cylinders have narrow centring teath II, which pass through the recesses in the crank case when the cylinder is withdrawn, and which do not obstruct the flow of gas or air from the crank case to holes I in the cylinder.
Patent GB-1089441-A (GB)
Title: Cell fractionator apparatus
IPC: C12N1/06
Filed: 1965-03-22
Abstract: In the method of and apparatus for fractionating biological cell material described and claimed in Specification 991,043, the expansion chamber 118 Fig.2, the lower portion of the valve head 91 <PICT:1089441/C6-C7/1> and that portion of constriction 116 that forms a valve seat for valve head 91 are cooled by passing the gaseous coolant through a plurality of cooling channels 127 extending obliquely and radially through the block 94 instead of through the single channel (121 in Fig. 1) of Specification 991,043.  Sleeve 95 and collar 95a serve to reduce or to prevent heat transfer between block 94 and body 76.
Patent GB-400532-A (GB)
Title: Improved process of and apparatus for trueing up and polishing metal surfaces
IPC: B24B33/08
Filed: 1933-04-25
Abstract: 400,532. Burnishing by compression. RYSER, E., 7, Rue Hubner, Mulhouse, Haut - Rhin, France. April 25, 1933, No. 12080. Convention date, May 2, 1932. [Class 60.] Metal surfaces are finished after trueing- up, by non-cutting tools having a speed of trans. lation which is very considerable with respect to the speed of rotation, a tool rotating for example, through 1/5 to 1/3 of a revolution while performing one longitudinal movement through a cylinder. A high superficial temper is stated to be obtained especially with the use of petrol or soapy water as coolant. A tool especially for internal combustion engine cylinders comprises elements c of hard material such as tungsten steel, or other hard steel the elements c being mounted in holders d adjustable by cones g, h bearing on rods e. For flat surfaces, a tool comprises a disc having non-cutting bars mounted in the plane surface thereof, which is reciprocated perpendicular to its axis of rotation, the rotary movement being continuous or comprising part only of a revolution.
Patent GB-507406-A (GB)
Title: Improvements in and relating to bird and small animal cages
IPC: A01K31/06
Filed: 1937-12-13
Abstract: 507,406. Cages for birds &c. CHANGE WARES, Ltd., and STONHAM, D. J. Dec. 13, 1937, No. 12084/39. Divided out of 506,930. [Class 5 (ii)] A cage for birds or small animals is secured to a base or stand by a number of hooked or other clip members mounted on the stand and adapted to engage in slots or holes in a flange or bottom portion of the cage. As shown, clip members 10 passing through apertures 15 in a stand 12 and secured to leaf springs 16 attached to a concave portion 13 of the stand,'have hooked parts 12<1> adapted to engage in holes 9 in the lower flange portion 7 of the cage., The stand has a rib 14 for locating the cage on the stand and for locating a sand tray 8 adapted to be inserted through a cut-away part of the flange.
Patent GB-270739-A (GB)
Title: Improvements in apparatus for screening secondary x-rays by means of a screen rotatable about an axis
IPC: G21K1/02
Filed: 1927-05-05
Abstract: 270,739. Leiser, F. May 5, 1926, [Convention date]. R÷ntgen-ray apparatus wherein secondary radiation is intercepted by a rotary screen is characterized in that (1) the axis of rotation of the screen is parallel to the axis of the central ray emanating from the Rontgen tube, and (2) strips of lead &c. mounted radially in the screen are rotatable about their own, axes. In the form shown, radially-disposed vanes 2 of lead or lead alloy are journaled at 3 in an iron hoop 1 secured to a shaft 4, and each carries at its other end a bevel wheel. A single toothed wheel 5 mounted loosely on the shaft 4, and prevented from rotating with the shaft, meshes with all the wheels on the vanes 2, so that, as the shaft 4 is rotated by a motor, the screen as a whole and also the individual vanes are rotated, the vanes making one revolution for each revolution of the screen. The arrangement is such that each vane, as it passes at 6 the middle of the fluorescent screen 7, presents its edge thereto.