baber/WOPTO huggingface dataset:
Patent GB-1555197-A (GB)
Title: Process for the isolation of a placentaspecificglycoprotein
IPC: A61K35/50
Filed: 1977-04-15
Abstract: In order to concentrate the placenta-specific protein PP5, a PP5-containing protein solution is brought into contact, at a pH of between 4 and 9, with an antibody against PP5 which is bound to an insoluble support. The support with the PP5 bound to it is separated off from the liquid phase. In order to release the PP5, this support is treated with an aqueous medium of a pH of from 2 to 4, or with a solution of a substance which dissociates protein bonds at a pH of from 4 to 9. The PP5 which is obtained can be used in a diagnostic agent for detecting PP5 and antibodies directed against PP5.
Patent GB-168854-A (GB)
Title: Improvements in piston rings
IPC: F16J9/14
Filed: 1921-06-08
Abstract: 168,854. McMaster, F. K. Sept. 3, 1920, [Convention date]. Piston packing.-The ends of a split packing-ring engage one another by a V-joint, which is bevelled from the outer to the inner periphery of the ring-
Patent GB-420442-A (GB)
Title: Improvements relating to liquid level indicators
IPC: G01F23/02
Filed: 1933-06-01
Abstract: 420,442. Indicating liquid levels. MARSDEN, A., 68, Victoria Street, London. June 1, 1933, No. 15865. [Class 123 (i)] In the indication of liquid level in boilers and the like, the oscillations in the gauge glass due to surging, e.g. on a ship, are minimized by providing a tank 5 of greater volume than the gauge glass 1, arranged within the boiler and communicating with the gauge glass and the boiler. The tank may be open at the top, or may be closed and provided with a small opening 7 to increase the damping effect by restricting the flow of steam.
Patent GB-1244806-A (GB)
Title: A circuit arrangement for the stabilisation of the output voltage of a transistor switching amplifier
Inventor: DIEHL KARL
IPC: G04C3/06
Filed: 1969-03-27
Abstract: 1,244,806. Electric clocks. K. DIEHL. March 27, 1969 [Aug. 3, 1968], No. 16059/69. Heading G3T. A circuit for maintaining and stabilizing the oscillation of a clock drive comprises a battery B, a transistor T1, a control winding Sw, a drive winding Aw, a capacitor C1, a charging resistor R1 and an electronic switch, the output circuit of which is in parallel with the capacitor and the input circuit of which is coupled with one or both of the windings. As shown, the electronic switch comprises a transistor T2 which includes the control winding Sw in its input circuit. On connecting the battery to the circuit, the capacitor charges to a potential sufficient to trigger the transistor T1 so that a current flows through the winding Aw thereby creating a magnetic field which interacts with a magnet on the clock oscillator to deflect the oscillator. The movement of the magnet over the winding Sw induces a voltage in this winding which, for one direction of movement of the oscillator, results in a positive potential at a terminal S1 thus switching on the transistor T2 and a negative potential at a terminal S2 which reduces the voltage at the base of the transistor T1 sufficiently to switch off the transistor T1. In the other direction of movement, the potentials at the terminals S1, S2 are reversed in sign so that the transistor T2 is switched off whilst the potential at the base of the transistor T1, due to the charging of the capacitor C1 and the voltage induced in the winding Sw, is large enough to trigger the transistor T1. In addition to maintaining the oscillation of the clock drive in this way, the switching on of the transistor T2 allows the capacitor C1 to discharge to a degree determined by the magnitude of the voltage induced in the winding Sw which controls the operation of the transistor T2. Thus if the battery voltage changes or changes in frictional effects on the oscillator occur which alter the magnitude of the voltage induced in the winding Sw, the output impedance of the transistor T2 is correspondingly altered to adjust the extent of discharge of the capacitor C1. Thus at the next swing of the oscillator the capacitor changes to a different potential so that the collector current and therefore the magnitude of the oscillator driving pulse are adjusted. Modification are described in which the input circuit of the transistor T2 includes both windings Sw, Aw or the winding Aw alone and in which one or both of the windings may be coupled to the transistor T2 by transformer means.
Patent GB-885973-A (GB)
Title: Disc brake
Inventor: BUTLER HENRY JAMES
IPC: F16D65/18
Filed: 1957-05-22
Abstract: 885,973. Disc brakes. DUNLOP RUBBER CO. Ltd. May 1, 1958 [May 22, 1957], No. 16201/57. Addition to 688,382. Class 103 (1). The actuators of a disc brake of the type disclosed in the parent Specification each include a plunger 19 guided by a spigot 18 on the end wall 17 of cylinder 15; a cylindrical lever 20, 21 carries one end of an impermeable, flexible stocking 23 whose other end is secured to plunger 19 by a plate 25, the plunger being forced toward the disc by fluid pressure and the stocking permitting large axial movements of the plunger. In Fig. 2, not shown, the stocking is replaced by a diaphragm to which the plunger is attached; and in a further form, Fig. 3, not shown, used in a brake operating at high pressure and temperature, metallic bellows replace the stocking and diaphragm, a series of bellows being provided coaxially one within the other for long stroke plungers.
Patent GB-692331-A (GB)
Title: Phonograph stylus
IPC: G11B3/48
Filed: 1951-07-09
Abstract: 692,331. Gramophone needles. PHILCO CORPORATION. July 9, 1951 [July 14, 1950]. No. 16230/51. Class 40 (ii). A stylus for use with both standard and microgroove phonograph records has a main portion It contoured to engage the groove of a standard record and a protuberant portion 12 depending from said main portion and contoured to engage the groove of a micro-groove record. In a further embodiment, Fig. 8, the depending portion 12b is offset from the centre of the main portion 11b, so that one side of the said depending portion 12b engages one side of the groove of both standard and micro-groove records.
Patent GB-629138-A (GB)
Title: Improvements in and relating to methods of preparing alkyl-orthosilicates
IPC: C07F7/04
Filed: 1947-06-19
Abstract: Orthosilicates are prepared by reacting aliphatic alcohols with magnesium silicide, e.g. by refluxing the reactants, if necessary, in an inert solvent such as a hydrocarbon (benzene, toluene or petroleum ether) or an ether (diethyl or dibutyl ether).  When a monohydroxy alcohol is employed, at least 8 mols. of the alcohol to 1 mol. of magnesium silicide may be employed.  Alcohols containing a small amount of water may be employed, and the reaction may be initiated by adding a small quantity of a highly reactive alcohol, e.g. methyl alcohol followed by the alcohol to be used, and the desired ester is separated by fractional distillation.  Suitable alcohols are aliphatic monohydroxy alcohols such as methanol, ethanol, propanol, isopropanol and other normal and branched chain alcohols of the homologues series including higher molecular weight alcohols such as octadecanol, unsaturated aliphatic alcohols such as allyl, methallyl and crotyl alcohols, and aliphatic polyhydroxy alcohols such as ethylene glycol.  In examples, methyl and ethyl silicate are prepared.  The Specification as open to inspection under Sect. 91 refers to the use of other types of organo-hydroxy compounds for the above process, e.g. aromatic alcohols and phenols, in particular benzyl alcohol and guaiacol.  This subject-matter does not appear in the Specification as accepted.ALSO:Stone is preserved with aliphatic esters of ortho silicic acid
Patent GB-1323659-A (GB)
Title: Piperazine derivatives methods for their production and pharmaceuticl compositions containing them
IPC: C07D417/14
Filed: 1972-04-07
Abstract: 1323659 Piperazine derivatives YOSHITOMI PHARMACEUTICAL INDUSTRIES Ltd 7 April 1972 [10 April 1971] 16271/72 Heading C2C Compounds of the general formula  (X = S, CH 2 CH 2 , CH = CH ; R = H, halogen, C 1-4  alkyl, CH 3 O, CH 3 S, CH 3 CO, CF 3 ; A = C 2-4  alkylene; n = 0-3; Het = furyl, pyridyl, thienyl) and their acid addition salts are prepared by (a) reacting a compound of the formula with a compound of the formula (Z = reactive atom or group), (b) reacting a compound of the formula with a compound of the formula or (c) reacting a compound of the formula with Z-(CH 2 ) n -Het, optionally followed by salt formation. The above compounds are psychotropic agents, and may be administered in the form of pharmaceutical preparations containing them in association with a carrier.
Patent GB-764708-A (GB)
Title: Improvements relating to automatic shearing machines for metal tubing
Inventor: RICHARDSON JAMES ALFRED
IPC: B23D25/04
Filed: 1954-06-02
Abstract: 764,708. Shearing. NUFFIELD TOOLS & GAUGES, Ltd. Aug. 12, 1955 [June 2, 1954], No. 16288/54. Class 83 (4). In an automatic shearing- machine for cutting continuouslyfed thin-walled metal tubing into equal lengths, the tubing impels in the direction of feed a reciprocatable unit comprising a die set, an associated cutting-tool and a clamping device which clamps the unit to the tubing; and the whole machine is powered and controlled by the movement of the tubing. The machine shown in plan in Fig. 1 is designed as an attachment to a tube rolling- machine. The tubing 6 fed by rollers engages an adjustable stop 7 carried by a shaft 9 slidable in the frame 1 to cause an arm 11 mounted on the other end of the shaft 9 to engage a rod 12 in the reciprocatable unit 3 shown in Figs. 4 and 5. The rod 12 moves to an operative position determined by a detent 13 in which a cam on the shaft depresses a plunger 18 to force together dies 14 having recesses for supporting the tubing 6 during shearing. Also movement of a coned surface 26 on the rod 12 allows two spring-loaded clamping members to grip the tubing which then impels the unit 3 forwards along rails 2. Engagement of a cam 28 on the arm 11 with a roller 29 on the frame temporarily deflects the arm 11 and stop 7 against spring-action into an inoperative position. On each side of the frame 1 are inclined levers 36 pivoted at one end, and spring-urged at the other end against adjustable stops, so that during forward movement of the unit 3 a pair of rollers 35 on the unit 3 coact with the underside of levers 36 to reciprocate a pointed cutter 30 to shear the tubing. At the end of the forward movement of the unit 3 a stop 41 returns the rod 12 to its inoperative position to open the dies 14 and the clamping members whereupon the unit 3 is returned by springs 4 surrounding the rods 2, the rollers 35 engaging the upper sides of the levers 36. This cycle of operations is then repeated.
Patent GB-1110031-A (GB)
Title: Electrode for electrical discharge devices
IPC: H01J31/46
Filed: 1965-04-15
Abstract: To improve the loadability of, and reduce electron emission from, an electrode in a valve having a thoriated cathode, the electrode is provided with a protective coating comprising a compound M5X3, where M is W, Mo, Ta, Nb, Ti, Zr or Hf and X is Si or B, th coating being formed in situ by a solid-state reaction between the electrode metal and a compound MXy, y being greater than 0.6.  The metal component M may be the same as or different from the electrode metal. In particular a Mo electrode may be coated with TiSi2 or Zr Si and heated in vacuo or in a neutral gas atmosphere to form a coating containing Ti5 Si3 or Mo5Si3 respectively, or a Ta electrode may be coated with Ta Si2 and heated to form a coating containing Ta5Si3.  A specific example is given.  The protective coating may be formed on a preformed electrode e.g. a grid, or on the wire or strip material used to form the electrode.
Patent GB-991423-A (GB)
Title: Improvements in or relating to formwork for casting walls
Inventor: GIVEN ALEXANDER TAIT
IPC: E04G17/075
Filed: 1962-04-30
Abstract: 991,423. Shuttering for casting walls. WESTCON ENGINEERING & CONTRACTORS Ltd. April 30, 1962, No. 16389/62. Heading E1S. Ties 3 for spacing forms 1 for casting walls have weakening notches 9 inside the forms and sufficient play between the ties and the apertures 6 in the forms through which they pass to permit the ends of the tie rods being broken off without removing the forms, the ties being secured by bars 8 engaged in apertures 7 in the end of the ties. Lugs 10 in the ties anchor in the concrete and hold the forms apart before casting. A notch 12 in the end of the tie is adapted to be engaged by a claw hammer 15 for pulling the tie through the apertures 6 or removing the broken end.
Patent GB-361822-A (GB)
Title: An improved pig trap
IPC: A22B5/02
Filed: 1931-06-05
Abstract: 361,822. Pig traps. SCHERMER, K., 44, Winterstrasse, Karlsruhe, Baden, Germany. June 5, 1931, No. 16445. [Class 81 (ii).] A pig-trap consists of a cradle formed by two side walls converging at an acute angle and a floor, the whole of the parts being mounted on two circular end walls arranged to turn on rollers. One of the longitudinal walls is suspended, so that the cradle can be adjusted to animals of different sizes, and may be swung inward by hand or by the animal in the trap. In the arrangement shown in Figs. 2 and 3, the wall b is rotatable about the shaft g and can be moved into different positions by a lever system m, n and i rotating about the shaft k, and actuated by a hand lever not shown. On tilting the cradle, the weight of the animal causes the wall b to move back into its outer position to receive the next animal. In a further modification shown in Figs. 6 and 7, the wall b is held in the outer position against a spring o by a detent q resting in a notch r. The detent q is mounted on a portion s of the floor of the cradle which is yieldingly mounted and held in a horizontal position by a spring t. The weight of the animal on the part s releases the wall b which is pressed firmly against the side of the animal. In the discharge position, the weight of the animal overcomes the spring o thus restoring the wall b to its outer position where it is again held by the detent q. The floor-piece s having risen to its original position.
Patent GB-123343-A (GB)
Title: An Improved Method of and Apparatus for Measuring Gases.
IPC: G01F15/07
Filed: 1917-11-09
Abstract: 123,343. Cockey, F. G., and Gas Meter Co. Nov. 9, 1917. Gas meters. - Apparatus for measuring gases flowing through mains or conduits comprises a main valve suspended so as to rest by gravity against a seating across the main gas conduit and adapted to be actuated by the flow of gas, a shunt meter having its inlet and outlet respectively in communication with the conduit on the upstream and downstream sides of the main valve, and a shunt valve directly communicating with and controlling the outlet from the shunt meter and operated by the main valve so that the opening of the shunt valve is definitely, proportionate to the opening of the main valve. The main valve box A, Fig. 4, has a flanged cylindrical extension piece A<1> at the inlet end traversed by a small pipe b by means of which a portion of the gas is bypassed through the meter B. The main valve a, consisting of a metal cone fixed to an apex piece a<1> and base frame a<2>, seats on a ring c fixed between the box A and the extension A', and is supported on an horizontal spindle d carried by parallel suspension rods e, e<1> pivoted at f, f<1> in a small box E above the main box A. For adjustment purposes, the rods e, e<1> are connected to the spindle d at their lower ends through the medium of a sleeve h, the ends of the rods being forked and having pin-and-slot connexions with the sleeve, which is a sliding fit on the spindle and is fixed by a screw h<1>. A weight i screwed on the end of the spindle counterbalances the valve a. The shunt valve j seats on a plate k, fixed between the box E and a tubular casing F connected by a pipe l with the outlet of the meter B. and is operated by the arm e<2> of the rod e engaging an adjustable nut on the depending spindle j<1> of the valve. By applying weights m to the spindle j<1>, a variable pressure can be transmitted along the spindle d for purposes of adjustment. The spindle d may work on friction rollers, and a dash-pot may be provided to damp any oscillation. A filter containing some porous substance is placed on the inlet side of the apparatus to absorb any dust &c. in the gas. In a modification, Fig. 6, the main valve a has a spherical surface and rests on an horizontal seating c' in the bottom of the box A, which is supported upon a combined inlet chamber and filter A<3>, A<4>. The shunt valve j is adjustably mounted on a screwed spindle j<1> which is weighted and provided with a cross pin j<2> resting in a notch in a lever p. The lever p is fulcrumed at one end in a fork q carried by an adjustable eye-bolt r and at its opposite end rests on a roller t mounted in a slotted link u on the stem of the main valve a. A counterbalanoing-lever v engages another roller t in the link u, which is connected at its upper end with a piston working in a dash-pot w on top of the valve box A.
Patent GB-962020-A (GB)
Title: New halogen-containing polyamines, their preparation and their use
IPC: C07D295/13
Filed: 1962-04-30
Abstract: The invention comprises halogen containing polyamines obtained by reacting non-aromatic polyamines having at least one active amine hydrogen atom per molecule with glycidyl ethers of halogenated monophenols.  Preferred compounds are those of formula: <FORM:0962020/C1/1> wherein X is halogen, Y1- Y4 are H, halogen or C1- 4 alkyl, R1-R3 are H or C1- 4 alkyl, n is a whole number 2-6 and m is a whole number 1-6. In examples specific products of the above formula are made by reacting pentachlorophenylglycidyl ether with ethylenediamine, diethylenetriamine, triethylenetetramine or dimethylaminopropylamine; and 2,4,6-tribromophenylglycidyl ether with triethylenetetramine or diethylaminopropylamine.ALSO:Halogen-containing polyamines, obtained by reacting non-aromatic polyamines having at least one active amine hydrogen atom per molecule with glycidyl ethers of halogenated monophenols, are used as curing agents for epoxy compounds having an epoxide equivalent greater than 1. Preferred curing agents have the formula: <FORM:0962020/C3/1> e.g. the reaction product of pentachlorophenyl-glycidyl ether or 2,4,6-tribromophenyl, glycidyl ether with triethylenetetramine, which products are used in examples to give a liquid epoxy resin (5.3 epoxide equivalents per kg) obtained by reacting epichlorohydrin with 2,2,bis (4 hydroxyphenyl) propane. The Specification gives an extensive list of suitable epoxy compounds.
Patent GB-402485-A (GB)
Title: Improvements in and relating to dynamo electric machines
IPC: H02K19/38
Filed: 1932-06-10
Abstract: 402,485. Driving dynamo-electric machines. BRITISH THOMSON-HOUSTON CO., Ltd., Crown House, Aldwych, London, and CLOUGH, F. H., Kilsby, Northampton. June 10, 1932, No. 16492. [Class 35.] Machines with two armatures.-A main and an auxiliary alternating-current machine are combined in such a way that the rotating members are secured to rotate together, the main field member 1 being fed with continuouscurrent when the machines are run at normal speed but being supplied with low frequency polyphase current derived from the armature 3 of the auxiliary machine when run at a definite speed other than normal so that the main field rotates relatively to its field member and cuts the main armature at normal speed. The invention is described with reference to an alternator driven by a water wheel or turbine the driving head of which is subject to variation. The main armature 4 and the auxiliary field member 2 are stationary. The auxiliary armature 3 supplies the polyphase field winding on the main field member 1 only at two definite speeds one of which is greater and the other less than the normal and the connections between the armature 3 and field member 1 are reversible so that normal speed of the actual field is obtained.
Patent GB-169017-A (GB)
Title: An improved appliance or device for use in connection with the lining or metalling of bearings
IPC: F16C33/14
Filed: 1920-06-18
Abstract: 169,017. Bartlett, E. E., and Dansie, C. W. V. June 18, 1920. Moulds; clamping and guiding moulds.- Divided bearing-brushes c<1>, c<2> are lined by securing them in correct position relatively to a core e with parting strips v on a base a and pouring the metal into the spaces x. The core e is threaded on a rod d secured in the base a. The bushes c<1>, c<2> are clamped by jaws m<1>, m<2> engaging the sides and ends at o and n and having secondary projections n<1> for clamping small bushes. The jaws are pivoted to arms j<1>, j<2>, which are pivoted to a head g moved down the rod d by a fly-nut f. The arms j<1>, j<2> are drawn together by a fly-nut t and rod p which is cranked to avoid the core e &c. In a modification, the core c is in halves and clamped upon a single parting plate.
Patent GB-846805-A (GB)
Title: Improvements in sealing arrangements for gas filters
Inventor: AUCKLAND JOHN RAYMOND
IPC: F16J13/02
Filed: 1958-05-22
Abstract: 846,805. Gas filters. VOKES Ltd. May 15, 1959 [May 22, 1958], No. 16540/58. Class 8(2). A gas filter panel 1, Fig. 3, athwart a casing 5 having a dustladen gas inlet 3 and a clean gas outlet 4 is held in sealing engagement against a strip of resilient material 2 carried by a flange 6, Fig. 3, formed at the inlet end of the casing 5 by a plurality of wedges 15 between the outlet end of the panel and a flange 7 of the casing; at least two of the wedges 15 being carried by a top access door 12 through which the panel is initially introduced. A bottom access door 13 also carries wedges 15. The panel is guided by vertical slides 14 and serves to arrest sub-micronic particles.
Patent GB-1502876-A (GB)
Title: Cathode ray tube
IPC: H01J29/82
Filed: 1975-04-22
Abstract: 1502876 Cathode-ray tubes PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd 22 April 1975 [25 April 1974] 16558/75 Heading H1D A C.R.T. includes a focusing electrode 7 supported by axially extending conductive members 22 and a conductive coating 25 on the tube envelope 1, which surrounds the members and forms with the electrode an electrostatic lens. The members 22 and the coating 25 constitute a further electrostatic octupole focusing lens which produces a rectangular spot on the screen. The apertures 20, 21 in the control electrode 5 and anode 6 may be rectangular. The members 22 are embedded in a ceramic ring 18. The graphite coating may be intercepted at 27. The cathode includes an emissive member 8, 9 supported by 3 conductive strips 10 with a heater 14 supported by members 19 from a ceramic ring 13. In another embodiment the electrode 7 comprises a helically coiled wire.
Patent GB-498801-A (GB)
Title: Improvements in or relating to the production of stable concentrated solutions of the salts of ortho-iodohippuric acid
IPC: A61K49/04
Filed: 1938-06-02
Abstract: Concentrated aqueous solutions of salts of o-iodo-hippuric acid for use in X-ray photography of the urinary tract are prepared by dissolving the salts in presence of urethanes and/or water-soluble pyrazolones, for instance ethyl urethane or 1-phenyl-2 : 3-dimethyl-5-pyrazolone.  The solutions are stated not to throw down crystals on storage.ALSO:Concentrated aqueous solutions of salts of o-iodo-hippuric acid for use as contrast media in X-ray photography of the urinary tract are prepared by dissolving the salts in presence of urethanes and/or water-soluble pyrazolones, for instance ethyl urethane or 1-phenyl-2 : 3-dimethyl-5-pyrazolone.  The solutions are stated to be stable and not to throw down crystals on storage.