baber/WOPTO huggingface dataset:
Patent GB-1134154-A (GB)
Title: A device for preventing or reducing scours at the lower ends of members supporting marine structures
Inventor: TITMAN RICHARD TIMOTHY GRANT
IPC: E02B17/00
Filed: 1967-04-24
Abstract: 1,134,154. Preventing scour around subaqueous structures. DELTA DIVING Ltd. 17 Aug., 1967 [24 April, 1967], No. 18678/67. Heading E1H. A device for preventing or reducing scours in the sea bed at the lower end of a leg 1 supporting a marine structure comprises a reticulated or perforated sheet or collar 2 encircling the leg and means for preventing displacement of the sheet or collar relative to the leg and the sea bed. In the embodiment described the collar is of meshed plastics material which has a radial cut, 4. Fig. 1 (not shown) enabling the material to be opened out so that it can be placed around the leg. The outer margin of the material is anchored to the sea bed by pins 14 from which tapes 15 extend radially outwards. The collar is tied to the leg and it may rest flat on the sea bed or it may be tied so that it is conical in shape.
Patent GB-581653-A (GB)
Title: Improvements in or relating to shelving
IPC: A47B47/02
Filed: 1944-09-29
Abstract: 581,653. Shelf-retaining fronts. FINER, H. J. Sept. 29, 1944, No. 18705. [Class 52 (i)] A retaining front for shelving comprises sheet metal members having a cross-section as shown in Fig. 2, which are assembled by the lower limbs 1c, 6, 3 of one embracing the upper limbs 4. 7, 1a of another. The ends of the lower limbs 3, 6 are cut away, Fig. 1, so that new members can be added to increase the height of the front without removal of the existing front. The lower limb 6 of each member is out of line with the upper limb 7, so that on assembly the fronts of all the limbs 6 lie in the same plane. A downwardly-extending portion 9 is provided to give increased strength. A modified form of the invention is shown in Fig. 4.
Patent GB-595895-A (GB)
Title: Variable electric condenser
IPC: H01G5/38
Filed: 1945-07-20
Abstract: 595,895. Variable condensers. STANDARD TELEPHONES & CABLES, Ltd. July 20, 1945, No. 18707. Convention date, Feb. 27, 1943. [Class 37] Each of a plurality of ganged series-gap condensers comprises two insulated sets of stator plates, and two corresponding sets of rotor plates electrically connected together and mounted upon a rotatable metal shaft, but insulated therefrom and from the rotor plates of the other condensers. In the example, the rotor plates 5, 6, 7 and 8 of two ganged seriesgap condensers 50, 51 are mounted on an insulating sleeve 13 surrounding a common metal control shaft 4 which is earthed through a slip ring 20 and brush 26. Conducting spacers 14, 15 and 16 connect the individual rotor plates together, the two sets being isolated by insulating washers 17, 18. 9, 10, 11 and 12 are the insulated sets of stator plates and 27 are earthed metal screens. In Fig. 2 (not shown), the condensers 50, 51 are used in the tuned circuits of a two-stage amplifier system and the arrangement reduces the coupling and thus prevents feed-back between the stages. The ganged condenser may also be used as a scanning condenser in a panoramic receiver, the shaft 4 being preferably motor driven.
Patent GB-363682-A (GB)
Title: Process for the production of plastic compositions
IPC: C08J3/18
Filed: 1930-06-19
Abstract: Plasticizing agents are incorporated in plastic masses such as linoleum, celluloid and rubber compositions, during the manufacture thereof, in the form of aqueous colloidal dispersions. The plasticizer is incorporated preferably at the same time as other constituents.  The dispersion is preferably prepared by the process described in Specification 359,946, [Group III].
Patent GB-531094-A (GB)
Title: Improvements relating to the production of cartoon films
IPC: G03B15/08
Filed: 1939-06-27
Abstract: 531,094. Supporting lamps. DEHN, F. B. (Walt Disney Productions). June 27, 1939, No. 18720. [Class 75 (iii)] [Also in Group XX] In producing animated cartoon films the shadows caused by a character are determined by projecting an image of the character on a three-dimensional background, the distorted image so formed being used as a guide in making the film. An apparatus for use in the method consists of a table 1 with a glass covered aperture 2, movably positioned beneath which is a stage consisting of two members 5, 6 hinged together and secured at the desired angle to one another by a slotted quadrant 7. The stage is carried by a ball and socket joint 8 from a member 9 adjustable in a transverse slot 10. A camera or projector 15 is carried above the table, on which is supported a source of light 17 preferably giving a substantially parallel beam. The three dimensional background is prepared by projecting a photograph of a background drawing on to the stage 5, 6, and by then moulding, fitting or otherwise arranging upon the stage parts forming a three-dimensional background fitting the projected image. A transparency bearing an image of the character is then fitted over the opening 2 by the use of registration pins 13 and the light source 17 adjusted to project light from the desired quarter. An image of the character, which may be only outlined or filled in with translucent paint, is thereby thrown on to the background, and represents the desired form of the shadow. A photograph showing the background, the character, and its shadow-image on the background is then taken by the camera 15, which photograph is subsequently projected on to a transparency and used by the draughtsman in making the drawing from which the final photograph is made. In a modification of the apparatus, the aperture 2 in the table is formed in a longitudinally adjustable part, the stage is carried by members slidably mounted in transverse grooves at the ends of the table, and the lamp 17, Fig. 10, is carried in a holder 45 adjustable about a horizontal pivot pin 46 by which it is secured to a bracket 42 vertically adjustable on a pillar 35, which pillar is rotatably carried on a base traversable by means of a screw along the table. The adjustment of the collar on the pillar, and the rotational adjustment of the latter on its base, are maintained by pins engaging a series of apertures.
Patent GB-1269628-A (GB)
Title: Improvements in and relating to inter-meshing screw pumps
Inventor: VANDERSTEGENDRAKE STAMFORD ROB
IPC: F04C2/16
Filed: 1968-04-19
Abstract: 1,269,628. Rotary positive-displacement pumps. PLENTY & SON Ltd. April 17, 1969 [April 19, 1968], No. 18720/68. Heading F1F. A hydraulic pump of the externally-meshing screw-type has a driven screw 6 meshing with screws 4, 8 within a casing 2 that is provided with holes 12 near the discharge end so that air can enter the working chambers to effect gradual collapse of low-pressure air or gas pockets caused by cavitation. Noise and vibration are thus reduced.
Patent GB-235039-A (GB)
Title: Improvements relating to railway rail chairs
IPC: E01B9/32
Filed: 1924-08-07
Abstract: 235,039. Szarama, W. Aug. 7, 1924. Wrench handles.-Movable jaws 15 are secured to a railway sleeper 10 by means of screw studs which are screwed home by means of a handle 17 formed with a hollow end to fit over the head 20 of the stud.
Patent GB-1415568-A (GB)
Title: Control valve
IPC: B24C7/00
Filed: 1973-04-18
Abstract: 1415568 Valves S K ASSERSEN 18 April 1973 [20 April 1972] 18796/73 Heading F2V [Also in Division B3] A valve 10 controlling the supply of compressed air to sandblasting equipment comprises valve pistons 16, 28 subject to a control pressure in common chamber 26, the heads 25, 31 of the respective pistons being of greater effective area than the opposite ends. The latter comprise respectively a frusto-conical head 17 co-operating with seat 23 to control flow of compressed air from inlet 3 to outlet 24 leading to the sandblasting equipment and a head abutting flexible diaphragm 33 to control venting of the equipment receiver to atmosphere via pipe 11 and ports 36. Chamber 26 is supplied with compressed air via passage 38 and setting screw 39 and is provided with a vent passage 40 leading to a manually operated three-way valve 41. The latter is normally set to communicate with a control bore running parallel to the main sandblasting hose and having at its end a valve normally held closed by the operator. When the operator releases the valve, chamber 26 is vented to atmosphere causing pistons 16, 28 to respectively close and open their associated valves. Valve 41 can be set to vent chamber 26 directly to atmosphere to cause an immediate process stop. Chamber 26 may be provided with a safety valve venting to atmosphere and may be supplied with control air from an alternative source.
Patent GB-1137686-A (GB)
Title: Production of alkali metal salts of polyamine polyacetic acids
Inventor: BOETTGER GUENTER
IPC: C07C/
Filed: 1966-04-29
Abstract: 1,137,686. Alkali metal salts of polyamine polyacetic acids. BADISCHE ANILIN- & SODA-FABRIK A.G. 29 April, 1966 [30 April, 1965], No. 18824/66. Heading C2C. Alkali metal salts of polyamine polyacetic acids are continuously produced from a non- aromatic polyamine, formaldehyde and an alkali metal cyanide (or hydrocyanic acid and alkali metal hydroxide) in aqueous solution at elevated temperature by effecting the reaction in a multistage cascade of reactors with a continuous supply of the reactants wherein the polyamine and alkali metal cyanide are used in a stoichiometric excess over formaldehyde (main reaction) in at least one stage, adding the remainder of the reactants in a subsequent stage, and in at least one further stage an after-reaction takes place in which the alkali metal cyanide content of the reaction product is decreased to a concentration less than 0À1% by wt., and at the same time ammonia is removed continuously from all the stages. The reaction is suitably effected at 60-120‹ C. at a pressure, for example of 0À5 to 3 atmospheres and ammonia formed may be removed by generating steam during the reaction or by passing an inert gas through the reaction mixture. The reaction mixture preferably flows in succession through from 3 to 8 separate reaction zones and the formaldehyde is suitably employed as a 20 to 40 wt. per cent aqueous solution. The concentration of the alkali metal cyanide in the final stage may be determined by metering in to the solution a small amount of formaldehyde. In the examples, the tetra-sodium salt of ethylenediamine tetraacetic acid is prepared, some nitrilotriacetic acid also being obtained.
Patent GB-874141-A (GB)
Title: Improvements in or relating to electrical temperature measurement apparatus
IPC: G01K7/20
Filed: 1959-06-02
Abstract: 874,141. Temperature measurements. WAYNE KERR LABORATORIES Ltd., FLETCHER, K. A., and GOURIEL, G. G. April 25, 1960 [June 2, 1959], No. 18858/59. Class 40 (1). [Also in Group XXXVI] The time lag occurring in the measurement of temperature by means of a sensitive element which gives an electrical signal representative of the temperature is minimized by .supplying the indicator with the amplified differentiated signal in addition to the signal itself; the amount of the differentiated signal is arranged to be insufficient to cause overshoot. In the Figure a D.C. bridge circuit includes a resistor 10 of spinel in a glass bead, of the type described in Specification 864,587 whose resistance R varies with temperature T according to the law T# - R/(R + K); the resistance of the bridge arm 13 is made equal to K. The resistances of the other arms are made low so that the bridge output varies linearly with temperature. The voltage across 10 is applied to an emitter-follower transistor stage 18 whose output is directly coupled to a transistor amplifier 21. The signal from this stage is differentiated by one of the capacitors 23 or 25 in conjunction with resistor 17 and applied to a meter 16 in addition to the normal unbalance output of the bridge. The initial deflection of the meter is thus made more rapid without any effect on the final steady value. The transistor stages are biased at or near the mid-points of their characteristics so that the differentiating effect is operative whether the initial temperature of the element 10 is above or below the temperature to be measured. The alternative capacitors 23 and 25 are included so that the time constant can be changed to suit the degree of thermal contact between the element and the body to be measured. Thus, a different value can be used when the element is immersed in a liquid than that when it is placed on a solid surface.
Patent GB-120298-A (GB)
Title: Improvements in Airships.
Inventor: SAUNDERS SAMUEL EDGAR
IPC: B64B1/00
Filed: 1917-12-19
Abstract: 120,298. Saunders, S. E. Dec. 19, 1917. Aerial machines with aerostats; aerostats; steering and balancing.-The envelope a of an air-ship is constructed of two or more wood laminae stitched together as described in Specification 105,412, [Class 145 (ii), Wood, Working], and secured upon longitudinal ribs b connected together at intervals, for example by bracing c, d, e and cross-wires f, or by radial bracing of laminated wood. A layer of silk &c. may be inserted between the laminµ. Adjustable propellers i and planes k are provided at the sides for forcing the ship down against the buoyancy of the gas or to assist the ascent. Water may be pumped between ballast tanks o for adjusting the balance. A keel p may have chambers which may be filled with water to retain the ship floating upon the water when forced down against the buoyancy of the gas. Cars and cabins.-Cabins h are provided within the envelope and are connected by a passageway m to a front cabin l. The cabins and passage are provided with double walls n to contain nitrogen or other inert substance to reduce danger of fire.
Patent GB-826756-A (GB)
Title: Improvements in or relating to antibiotics
Filed: 1956-06-19
Abstract: <PICT:0826756/IV (b)/1> A new antibiotic, antiobiotic 4915 or Hydroxymycine, is produced by cultivating Streptomyces paucisporogenes NCI B 8790, or a mutant thereof, in an aqueous nutrient medium containing a source of nitrogen, carbon and mineral salts under aerobic conditions. The temperature of cultivation is 25 DEG  to 35 DEG C., the duration 48 to 150 hours, and preferably 70 hours, and the cultivation preferably submerged.  Specified nitrogen sources are corn steep liquor, yeast, distillery residues, soybean flour, peptone, peanut flour and soy grain; carbon sources are sugars such as glucose and gelose, glycerol, dextrin and starch; mineral salts are sodium chloride and calcium carbonate.  Antibiotic 4915 is isolated by adsorption of the clarified broth at r H 6.0 on a cation exchange resin such as "Amberlite" IRC50 (Registered Trade Mark) on the OH cycle and elution therefrom with a solution of an aqueous base such as triethylamine.  The eluate is neutralized, concentrated and the antibiotic precipitated by the addition of a non-solvent such as methanol or acetone.  It is purified by (a) crystallization from a solvent; (b) conversion to the salicylidene derivative by treating the sulphate of the antibiotic with salicyl aldehyde in the presence of sodium carbonate, which is subsequently hydrolysed with aqueous acid to reform the antibiotic in the form of the acid salt; (c) conversion to the r -(r -hydroxyphenylazo) benzene sulphonic acid which is then treated with methanol, hydrochloric acid and triethylamine sulphate to reform the antibiotic in the form of the sulphate. Antibiotic 4915 is active against both gram positive and gram negative bacteria and particularly against Mycobacterium tuberculosis; its free base contains nitrogen only in the form of primary amino groups, is devoid of free reducing groups and contains 48.8% carbon, 7.3% hydrogen and 10.1% nitrogen, the balance being oxygen; it forms salts with acids and it has the infra-red absorption spectrum shown in Fig. 1.  Examples describe the preparation of Antibiotic 4915 sulphate, hydrochloride, completely iminated methylene derivative, partially iminated methylene derivative titering 4.5 to 5.5% formal, r -(r 1-hydroxyphenyl azo) benzene sulphonate and the benzoyl and other acyl derivatives.
Patent GB-931741-A (GB)
Title: Voltage-dependent ceramic resistors
IPC: H01C7/105
Filed: 1959-06-03
Abstract: 931,741. Voltage dependent resistors. SIEMENS & HALSKE A.G. June 3, 1959 [June 4, 1958], No. 18979/59. Addition to 911,741. Drawings to Specification. Class 37. A voltage-dependent resistor having a small positive temperature coefficient of resistance over a range of temperature consists of a ceramic ferro-electric whose Curie temperature lies below the upper limit of said range, to which conductivity is imparted by donor or acceptor atoms, the spacing between the energy level of these atoms and the conduction or valence band respectively being less than half the width of the prohibited zone between valence and conduction bands. Any conductivity not imparted by said donor or acceptor atoms is insignificant. Ohmic contact layers are attached to the material and the concentration ND of donor or acceptor atoms in the interior of the grains constituting the ceramic, and the grain size d are selected so that the products d.ND is so much less or greater than the magnitude at which a maximum value for the critical field strength Ek would occur in a material with the same surface state density that the actual critical field strength is less than half the maximum value. Suitable ceramic materials are barium titanate and barium strontium titanate. Ohmic contacts to these may be constituted by vapour deposited aluminium layers reinforced by layers of silver or tin.
Patent GB-211789-A (GB)
Title: Improvements in or relating to wooden rollers for use in machines for treating cotton and the like
IPC: D01G15/50
Filed: 1923-07-26
Abstract: 211,789. Lees & Co., Ltd., A., and Dunkerley, L. July 26, 1923. Carding-engines. - Wooden rollers, such as stripping-rollers used in carding-engines, are formed from a single piece of wood hollowed out from each end to leave a central disc 4. Discs 3 are fitted at each end and, if desired, at other intermediate points. The spindle 5 is passed through central holes in the discs and is secured thereto by cross pins 6. Metal discs 7 are provided at each end of the roller.
Patent GB-774409-A (GB)
Title: Improvements relating to power driven elevators
Inventor: SMITH ARTHUR HENRY
IPC: B66F9/02
Filed: 1954-06-30
Abstract: 774,409. Platform elevators. BENFORD, Ltd. June 28, 1955 [June 30, 1954], No. 19226/54. Class 78 (3). In a platform elevator the lifting carriage 19 is raised and lowered by the selective engagement of pawls 39, 57, pivoted to the carriage at 44, 53, with the upwardly and downwardly moving runs 26, 27 of a continuously moving endless chain belt, cable or other flexible member. Pawl 39 is engaged with run 26 by manual operation of a member 44 and is automatically disengaged when the pawl engages a vertically adjustable shoe 47. Catch mechanism (not shown) which is adjustable along the guides preferably with shoe 47, retains the carriage in its raised position. On release of this catch mechanism the lower face 56 of pawl 57 automatically engages with run 27 and effects controlled lowering of the carriage. When the carriage is fully lowered the chain is free to move ratchet-wise past pawl 57. The elevator may be operated with the catch mechanism in an inoperative position, in which case the carriage moves through a complete cycle for each actuation of member 44. When pawl 57 is operatively engaged with run 27, a bar 58 engages pawl 39 and moves it clear of run 26. In a modification (not shown) pawls 39, 57 are mounted on a single pivoted member. Deflection of the chain by pawl 39 is limited by providing a gate on the carriage defined by members 45, 46. The elevator is provided with a pair of groundengaging wheels (not shown) which facilitate transport.
Patent GB-694113-A (GB)
Title: Leaf spring assembly
Inventor: DOW HAROLD THOMAS
IPC: F16F1/20
Filed: 1950-08-01
Abstract: 694,113. Laminated springs. SPRING PERCH CO., Inc. Aug. 1, 1950, No. 19229/50. Class 108 (iii). A leaf-spring liner for insertion between superposed spring leaves comprises a web of pliable synthetic material exercising an inherent spring damping action on the assembly and including integral side flanges extending in both directions substantially normal to the web to seal the side edges of the spring assembly. In the arrangement shown, each liner comprises a body portion 32 having integral side flanges 34 which fit snugly the side edges of spring leaves 10. The root portions of the flanges are slightly relieved, to ensure that the flanges do not " gap open " when the spring is under load. The liner may be produced in strip form, by extrusion, compression or injection moulding, or casting, from synthetic plastic such as solid polyethylene type material or a synthetic linear condensation polyamide, such as Nylon. Alternatively the liner material may be formed initially in flat strip form to project beyond the edges of the spring leaves and then the flanges are formed by the strip being heat-softened and ironed inwardly at the projecting edges. In other arrangements, Figs. 4 and 5 (not shown), the liner is shaped for use between parabolic and grooved section leaves respectively.
Patent GB-1516627-A (GB)
Title: Method of producing a semiconductor photodiode of indium antimonide and device thereof
IPC: H01L31/18
Filed: 1977-05-09
Abstract: 1516627 Semiconductor photodiodes D H POMMERRENIG 9 May 1977 [8 Nov 1976] 19275/77 Heading H1K A photodiode comprises a pn junction between a substrate of InSb and an epitaxial layer, deposited from vapour or liquid phase, of In Sb 1-x (As or P) x , the preferred value of x being 0À05.
Patent GB-1505014-A (GB)
Title: Mounts for electrical devices or the like
IPC: H01S5/023
Filed: 1976-05-11
Abstract: 1505014 Mounts for electrical devices STANDARD TELEPHONES & CABLES Ltd 11 May 1976 19322/76 Heading H1K In the manufacture of a mount, e.g. for a semiconductor laser, L.E.D. or optical detector, comprising a pillar 6 secured at its base to the base of a recess 5 in the flat top surface of a housing 1 such that at the intended operating temperature the top surface of the pillar 6 is recessed a predetermined amount, at most 100 microns, below the top surface of the housing, and in which the pillar 6 and housing 1 are of materials having different thermal expansion coefficients, the top surfaces of the pillar 6 and housing 1 are worked flush, e.g. by polishing with rouge, at a temperature greater or less than the operating temperature according to whether the pillar 6 has the larger or small thermal expansion coefficient. In the embodiment the pillar 6 is of copper, silver-soldered or fusion welded to the housing 1 of mild steel. In this case, for an operating temperature of 20 C., a preliminary lap and polish is effected at room temperature, and the final polish, taking only a few seconds, is carried out at 60 C. The mount is preferably finally plated with gold. A laser is mounted on the vertical flat surface of the pillar 6 and a flat window or optical fibre termination plate is fitted into the upper part of the recess 5.