baber/WOPTO huggingface dataset:
Patent GB-1052722-A (GB)
IPC: F16L41/04
Filed: 1965-02-23
Abstract: 1,052,722. Punching. TEXTRON Inc. Feb. 23, 1965 [Feb. 25, 1964], No. 7751/65. Heading B3W. In a tee fitting connected to a steel-walled fluid containing member which is to be perforated, a punching tool comprises a steel member having a screw threaded end portion which engages a thread in the body of the fitting, a shank portion of smaller cross-sectional diameter than the threaded portion and the bore of the fitting and a punching end portion 48, of smaller diameter than the shank, and which has a bore 56 which is longer than the thickness of the wall to be punched, the tip of said punching end portion being tapered and defined by two tapered surface portions 60 of curved shape on all transverse planes thereof and co-operating to form a pair of longitudinally forwardly converging ridges 64 at opposite sides thereof extending from the outer surface to the bore 56. The part of the tip immediately behind the tapered portion is parallel-sided and non- circular in cross-section. It is formed by two circular arcs struck from the centres 52, Fig. 5 (not shown), which are displaced equally on opposite sides of the axis of the steel member. As the punching end is forced through the steel wall, the end is constricted across the ridges 64 and expanded across the minor dimension at right angles to the ridges. The tool assumes its original dimensions as the punching operation is completed and contracts across its minor dimension to grip the shank of a mushroom-shaped coupon detached from the wall of the tube. In a modification. Figs. 8, 9 and 10 (not shown), the portion immediately behind the tapered portion is cylindrical externally. In a further modification, Figs. 11 and 12 (not shown), the portion immediately behind the tapered portion is cylindrical and the surfaces which form the ridges 64 are curved longitudinally as well as transversely.
Patent GB-622418-A (GB)
Title: Improved anti-friction bearing
IPC: F16C33/78
Filed: 1947-03-21
Abstract: 622,418. Bearings. GENERAL MOTORS CORPORATION. March 21, 1947, No. 7768. Convention date, March 21, 1946. [Class 12 (i)] [Also in Group XXVI] In an anti-friction bearing, a seal between the inner and outer race rings 12, 14 comprises an annular shield 18 whose outer edge is folded over to form a rim which fits in a groove 25 in the member 14 and which grips a sealing washer 16 so as to deflect it axially inwardly. The inner edge of the washer 16 engages a shoulder 20 of a groove 22 in the race ring 12 in light wiping contact. During rotation of the inner race ring, a narrow angular land 23 acts as a slinger and keeps dirt and other matter out of the groove 22. In assembly the washer 16 is fitted in the groove 32, Fig. 2, and a plunger 36 then forced against the frusto-conical portion 34 to deform the shield and tightly clamp the outer edge of the sealing washer in the shield rim. Holes 51 in the shield 18 are provided to facilitate lubrication by needle injection. In one modification there is no annular land 23 and in a further modification the internal diameter of the shield 18 is of such a diameter relative to the inner race member as to allow the insertion of a lubricant needle.
Patent GB-711092-A (GB)
Title: Improvements in or relating to modulator or mixer circuits
Inventor: BROWN THOMAS THEODORE
IPC: H03C1/54
Filed: 1952-03-26
Abstract: 711,092. Modulating systems; valve frequencychanging circuits. MARCONI'S WIRELESS TELEGRAPH CO., Ltd. Oct. 17, 1952 [March 26, 1952], No. 7800/52. Classes 40 (5) and 40 (6) A balanced modulator or mixer circuit comprises two valves V1, V2, Fig. 2, each having at least two grids, a balanced push-pull output circuit OC connected between their anodes, a common cathode coupling impedance RFC in the cathode return circuit, means for applying one input frequency f1 in parallel to corresponding grids SG1, SG2, and means for applying the other input frequency f2 to another grid G1 of one valve V1 the other valve V2 having its corresponding grid G2 earthed. The output circuit OC may be tuned to a frequency f1+f2 or 11 -f2 if it is required to produce either of these frequencies; when f1 is a carrier frequency and f2 a modulation voltage, an output of side-bands with suppressed carrier is obtained. The valves may be pentodes of the type having a short suppressor-grid base, or may have four or more grids. The Specification also describes as a known balanced modulator, a circuit, Fig. I (not shown), in which the input f is applied in parallel to the control grids of two screen-grid valves, and the input f2 is applied in push-pull to the cathodes, output being taken in push-pull from the anode.
Patent GB-919995-A (GB)
Title: Improvements in or relating to electric light or the like fittings
IPC: F21V21/30
Filed: 1961-03-03
Abstract: 919,995. Supporting electric light fittings. BOISSEVAIN, W., and HOARE, L. C. Oct. 27, 1961 [March 3, 1961], No. 7886/61. Class 75(3). An electrical fitting comprises a mounting member 10, a rigid tube 13 projecting through a hole in the member 10 and connected thereto by means which permit of rotation of the tube about its axis through approximately 360 degrees and include resiliently loaded means opposing such rotation and a lamp or plug socket 20 mounted on the opposite end of the tube 13 through a knuckle connection 22 permitting displacement of the socket about an axis normal to the axis of the tube. The tube may be secured by means of a pin 15 passing through it and having an enlarged head 16 moving in a recess 10b in the mounting member and a nut 14 threaded on the tube at the rear of the mounting member with interposition of a pair of wavy washers 18 separated by a plane washer 19. In place of the washers 18, 19 a spring washer or coil spring may be used. A stop 17 is provided in the recess 106 to limit rotation of the tube.
Patent GB-682795-A (GB)
Title: Improvements in and relating to fastening devices
IPC: F16B5/10
Filed: 1950-03-29
Abstract: 682,795. Stud and socket fastenings. HEKO PRODUCTS, Ltd., and KOPPEL, K. March 29, 1951 [March 29, 1950], No. 7895/50. Class 44 A fastening e.g. for a lady's handbag comprises a stud 6 pivotally mounted on one part 2 to engage automatically in an eyelet 3 in the other part 1. The stud is mounted in a casing 5 and carries inside the casing, pins 10 engaged by spring arms 11 urging the stud to locking position, the pins limiting rotation in this direction by engagement with the inside wall of the casing. Outside the casing the stud carries wings 8 formed with sloping cam-surfaces 9 adapted to be'engaged by the walls of the eyelet 3 as the parts are brought together to rotate the stud so that the wings may pass through the eyelet and return to the fastening position (shown) on the other side. There may alternatively be only one wing 8 and one pin 10. The blade springs 11 may be replaced by a coil spring or rubber buffers.
Patent GB-898200-A (GB)
Title: Stabilisation of trichloroethylene
Inventor: DUTTON BRIAN GORDON
IPC: C23G5/028
Filed: 1960-03-07
Abstract: Trichlorethylene is stabilized for use in degreasing metals by the incorporation of a stabilizing amount, suitably 0,0005-5% and preferably 0,2-0,3% by weight, of a primary aliphatic isocyanate, such as n-propyl, n-butyl, but especially ethyl isocyanate. Specification 884,823 is referred to.ALSO:Trichlorethylene is stabilized against metal-catalyzed decomposition by the incorporation of a stabilizing amount, suitably 0.0005%-5% and preferably 0.2%-3% by weight, of a primary aliphatic isocyanate, such as n-propyl, n-butyl, but especially ethyl isocyanate.  Specification 884,823 is referred to.
Patent GB-611242-A (GB)
Title: Quaternary ammonium compounds and methods for obtaining the same
IPC: C07D295/08
Filed: 1946-03-14
Abstract: Quaternary ammonium compounds of the formula <FORM:0611242/IV(b)/1> where R1 and R2 are hydrogen, an alkyl radical containing 1 or 2 carbon atoms or an alkoxy radical containing 1 or 2 carbon atoms, R3 and R4 are alkyl radicals containing 1-3 carbon atoms or R3 and R4 taken with N may be a saturated six-membered heterocyclic ring which may carry as substitutes methyl groups, R5 is an alkyl radical of 1-5 carbon atoms, R6 is an alkyl radical containing 1-6 carbon atoms or an aryl, or alkaryl radical, and x is 2 or 3, are prepared by the reaction of an ester of the formula R5OSOxR6 with a b -aminoethyl benzhydryl ether of the formula <FORM:0611242/IV(b)/2> When x is 3, R6 is a lower alkyl radical and when x is 2, R6 may be an aryl or alkaryl radical.  Reaction is preferably carried out in an inert organic solvent such as ether, chloroform, carbon tetrachloride, benzene, toluene, xylene, methanol, ethanol, isopropanol, n-propanol, acetone, ethyl acetate, acetonitrile and nitromethane, but it may also take place in the absence of a solvent.  When R3, R4 and N together make up a saturated heterocyclic ring, possible ring compounds include piperidine, methyl piperidine, morpholine, methyl morpholine and thiomorpholine.  Reaction usually takes place spontaneously or on gentle heating and with most solvents the product separates from the reaction mixture as crystals. These quaternary ammonium salts are useful therapeutic agents. In examples: (1) b -benzhydryloxyethyl - trimethylammonium methosulphate (C6H5)2 - CHO - CH2 - CH2 -N(CH3)3 -O-SO3-CH3 is prepared by the action of dimethyl sulphate on b -dimethylaminoethyl benzhydryl ether; (2) b -benzhydryloxyethyl dimethylethylammonium benzene - sulphonate is prepared from ethyl benzene sulphonate and b -dimethylaminoethyl benzhydryl ether; (3) b  - benzhydryloxyethyl trimethylammonium p-toluenesulphonate is prepared from methyl p-toluenesulphonate and b -dimethylaminoethyl benzhydryl ether; (4) b -benzhydryloxyethyl dimethyl - n - propylammonium - p - toluenesulphonate is prepared from n-propyl-p-toluenesulphonate and b -dimethylaminoethyl benzhydryl ether; (5) 4-(b -benzhydryloxyethyl)-4-methylmorpholinium p-toluenesulphonate is prepared from methyl p-toluenesulphonate and b -N-morpholinylethyl benzhydryl ether; (6) 1-(b -benzhydryloxyethy) - 1 - ethylpiperidinium benzenesulphonate is prepared from ethyl benzenesulphonate and b -N-piperidylethyl benzhydryl ether; (7) 1-(b -2-methoxybenzhydryloxyethyl) - 1 - methylpiperidinium ethosulphate is prepared from diethyl sulphate and b -N-piperidylethyl 2-methoxybenzhydryl ether, and (8) b  - 4 : 41 - dimethylbenzhydryloxyethyl di-n-propyl - isopropylammonium o - toluenesulphonate is prepared from n-propyl o-toluenesulphonate and b -isopropyl-n-propylaminoethyl p : p1-dimethylbenzhydryl ether. Analogous derivatives may be prepared by similar methods. Specifications 605,915, 605,916, 606,158, 606,317 and 607,258 are referred to.
Patent GB-1459721-A (GB)
Title: Liquid refrigerant injection system for hermetic electric motor drivem helical screw compressor
IPC: F25B31/00
Filed: 1975-02-26
Abstract: 1459721 Rotary positive-displacement fluid-machines DUNHAM-BUSH Inc 26 Feb 1975 [30 May 1974] 8088/75 Heading F1F [Also in Division F4] A compression-condensation refrigeration system comprises a meshing-screw compressor 12 driven by an electric motor 14 in a housing 30 which is hermetically sealed from the compressor, the compressor housing 28 being provided with a liquid refrigerant injection port P opening to a closed rotor thread 36 at a pressure intermediate the compressor suction and discharge pressures and connected to the motor housing. High-pressure liquid refrigerant bled from the condenser enters the motor housing 30 through a pipe 90 and accumulates to a predetermined level, as shown, the level of the gap 70 between the rotor 42 and the stator 40. The liquid refrigerant is picked up by vanes 94 on the rotor and splashed against the stator coils 68 providing vapourized cooling thereof. A hole 86 in the dividing wall 32 between the compressor and motor housings is connected by a conduit 84 to the bleed port P permitting liquid refrigerant to flash within the sealed compression chamber to control the compressor discharge temperature. The bleed line 90 includes a thermal expansion valve, controlled by a thermobulb 112 in thermal contact with the conduit 84, for controlling flow of liquid refrigerant from the condenser to the motor housing. The motor housing pressure level is selected so that refrigerant vapour can be bled to the motor housing from a secondary system such as an economizer.
Patent GB-227319-A (GB)
Title: An electrolytic process for preparing iron oxide pigments
IPC: C01G49/06
Filed: 1924-03-31
Abstract: A solution of an alkali metal salt is electrolyzed in the presence of an iron anode to produce an iron salt and an alkali which are withdrawn separately and re-combined outside the cell to precipitate ferrous hydroxide which is thereupon subjected to regulated oxidation in the mother-liquor, to produce iron oxide pigments.  The mother-liquor is then returned to the cell.  The electrolyte is preferably a saturated solution of sodium chloride, but sodium sulphate, bromide or acetate, or potassium chloride may also be used when particular colours of pigments are required.
Patent GB-198336-A (GB)
Title: Improvements in pressure apparatus for the detaching rollers of heilmann combing machines and others of similar type
IPC: D01G19/10
Filed: 1923-03-21
Abstract: 198,336. Nouvelle Soc. de Construction, ci-devant N. Schlumberger et Cie. May 23, 1922, [Convention date]. Combing-machines.-The upper detaching roller 1 is weighted by a spring-controlled lever 3 pivoted at 4 and connected at 5 to a rod 6, which can slide through a fitting 7 at the end of a lever 8, 9. The spring 12 is confined between the fitting 7 and a nut 13 by which its pressure can be adjusted. The rod 6 has a washer 11 at the end to limit its motion through the fitting 7. When it is desired to remove the pressure on the roller 1, the lever 8, 9 is moved to the right and as soon as the centre 7 is moved past the line between the centres 5, 10 the spring relaxes and the lever 3 is rocked until the centres 4, 5, 7 are in line. The return movement of the lever 8, 9 restores the original pressure.
Patent GB-557572-A (GB)
Title: Improvements in coupling devices for connecting pipes or conduits
IPC: F16L29/04
Filed: 1942-06-13
Abstract: 557,572. Pipe joints; valves. FOXCROFT, S. G. WILLIAMS-. June 13, 1942, No. 8121. [Class 99 (i)] [Also in Group XXIX] A pipe coupling comprises two parts b, e having completely flush surfaces when brought together for coupling, and laterally apertured sleeves a<SP>1</SP>, e<SP>1</SP> automatically brought into communication with a passage f in the part e when the parts b, e are connected together by a union nut c. In one form, Fig. 1, the nut c engages external threads on the parts b, e, the end faces of which are provided with interengaging pins and recesses. The sleeve a<SP>1</SP> is integral with the socket a and the part b is slidable on the sleeve a<SP>1</SP> and provided with a rubber or like ring d wide enough to seal the lateral apertures a<SP>3</SP> when in register with them. The sleeve e<SP>1</SP> is slidable in the part e against a spring and the passage f in the socket e is a groove fitted with a rubber or other sealing ring f<SP>1</SP>. In a modification, Fig. 2, the bush b slides on the sleeve a<SP>1</SP> against a spring b<SP>1</SP>; the ported sleeve e<SP>1</SP> is screwed in the socket e and carries a spindle e<SP>3</SP> slidable against a spring e<SP>5</SP> and having a head e<SP>1</SP> which is flush with outer end of the socket e when the parts are uncoupled.
Patent GB-636716-A (GB)
Title: A new or improved dicebox
IPC: A63F9/04
Filed: 1948-03-19
Abstract: 636,716. Dice boxes. CASCELLOID, Ltd., and SENIOR, H. March 19, 1948, No. 8233. [Class 132 (ii)] A dice-box for dice 4 comprises a transparent hemisphere 2 and an opaque hemisphere 3 joined together and containing a mass 5 to render the box self-righting. The dice rest on the flat or slightly sloping surface 6 of the mass 5. Lead shot or mercury located by a partition may be used as the weighting mass. A self-righting cylindrical dice-box is, also described. Five dice may be provided marked with the honours of a pack of cards. According to the Provisional Specification, the dice-box may be square, rectangular or polygonal.
Patent GB-350564-A (GB)
Title: Process for the manufacture of thiuram mono sulphides
IPC: C07C333/32
Filed: 1930-03-14
Abstract: Thiuram monosulphides are manufactured by the action of phosgene on a salt of a dithiocarbamic acid disubstituted on the nitrogen atom either symmetrically or asymmetrically.  In examples, phosgene is caused to react upon: (1) the sodium salt of dimethyldithiocarbamic acid (produced in situ by the action of carbon disulphide and caustic soda on dimethylamine), yielding tetramethylthiuram monosulphide; (2) the ammonium salt of the dithiocarbamic acid prepared from piperidine and carbon disulphide, which yields dipentamethylenethiuram monosulphide; (3) the dithiocarbamate prepared by the action of carbon disulphide and caustic soda on hexahydroethylaniline.  The process is applicable to salts (including salts with organic bases) of dithiocarbamic acids derived from any secondary organic base, those from diethylamine, methylethylamine, dibutylamine, dibenzylamine, methylaniline, dicyclohexylamine, perhydrocarbazole and morpholine being specified as additional starting materials.
Patent GB-145887-A (GB)
Title: Improvements in or relating to mooring devices
IPC: B63B22/02
Filed: 1919-04-02
Abstract: 145,887. Paine, H. Scott-, and Supermarine Aviation Works. April 2, 1919. Mooring. - A mooring-device suitable for hydro-aeroplanes comprises a submerged buoy A anchored by a cable B of such length that the buoy rides at low water as near the surface as is possible without fouling the craft to be moved. The surface body D is made of light material and is moored to the submerged buoy by as short a cable as is consistent with the buoy floating at high water. The post D' may be made of a coil of resilient wire.
Patent GB-293092-A (GB)
Title: Improvements in or relating to the treatment, protection or preservation of carcases, portions thereof or joints of meat
IPC: A22C17/00
Filed: 1927-03-26
Abstract: 293,092. Peyton, R. H. March 26, 1927. Skewer-like appliances for draining and aerating meat. - A hollow rod A, having side holes A<1>, a detachable wooden &c. handle B, and a detachable sharp or cutting point a<2>, is provided for use in cooling or draining animal carcases or portions thereof, the rod being pushed into the meat. The handle B may be secured by a bayonet joint B<1>. The point a<2>, which has a drainage opening a<3> communicating with the interior of tube A, may be screwed into it. Alternatively the points may be secured to handle B by a spindle. which extends through tube A. and is locked in position by bayonet joint B<1>, or it may be screwed into a threaded portion at the end of the tube by turning the handle.
Patent GB-1438626-A (GB)
Title: Locks
IPC: E05C3/30
Filed: 1972-05-25
Abstract: 1438626 Catches R H TYLER 24 May 1973 [25 May 1972] 8479/72 Heading E2A A fastening arrangement comprises a bolt 19, a pawl 32 for holding the bolt 19 in its fastening position and an operating member 28 capable of a first movement in one direction to urge the bolt 19 towards its fastening position and to cause the pawl 32 to move to its bolt holding position and capable of a second movement in another direction to release the pawl from engagement with the bolt 19 and release the bolt 19 for movement from the fastening position. As shown the bolt 19 is pivotally mounted on a base plate 14 and is spring loaded by a spring 26 into its unfastening position. The pawl 32 is spring loaded into its bolt holding position and is urged to such position during the first movement (clockwise as shown) of the operating member 28 by a flexible leaf 31 thereof. The operating member 28 is also capable of a second movement in which it engages an arm 37 of the pawl 32 to thereby rotate the same and cause the bolt to pass from its fastening position (still in a fastening sense) until the pawl rides over the end of the bolt to thus allow the bolt under the action of the spring 26 to reverse its direction of movement and move to its unfastened position. A release button 38 is connected to a beaded rod 39, the head 40 of which, when the button is operated, engages the operating member 28 to cause the same to describe its second movement. When the arrangement is in its unfastened condition the outer face of the button 38 is flush with the surface of the closure member on which fastening arrangement is mounted. The arrangement has a cover 42 which co-operates with lugs 45 on the base plate. In a second embodiment (Fig. 2, not shown) the bolt and pawl are spring biassed by different portions of a single leaf spring, the end of the bolt when being rotated towards its fastening position by the operating member running along a cam surface of the pawl to rotate the pawl until the pawl arrives at its bolt holding position.
Patent GB-1450986-A (GB)
Title: Production of carboxylic acids or dicarboxylic anhydrides
IPC: C07C57/145
Filed: 1974-02-26
Abstract: 1450986 Carboxylic acids and dicarboxylic anhydrides BASF AG 26 Feb 1974 [27 Feb 1973] 8550/74 Heading C2C In the process whereby carboxylic acids and/ or dicarboxylic anhydrides are prepared by the catalytic oxidation of hydrocarbons in which the hydrocarbon is passed over the catalyst by means of an inert carrier gas containing oxygen, the nitrogen-free carbon dioxide which is formed in the oxidation is recycled and used as the carrier gas. Exemplified is the preparation of phthalic anhydride from o-xylene. The process may also be used to prepare phthalic anhydride from naphthalene, maleic acid or anhydride from benzene or C 4  hydrocarbons, and acrylic acid from propylene.
Patent GB-323689-A (GB)
Title: Illuminated advertisement attachment for boxes of all kinds-cardboard, wood, metal or such like
IPC: G09F13/14
Filed: 1929-03-16
Abstract: 323,689. Barlow, E. March 16, 1929. Boxes combined with means for displaying advertisements.-A box contains an advertising stencil hinged thereto at F so as to be lifted into a vertical position by means of tapes T when the lid is raised. The interior of the lid acts as a reflecting surface R to illuminate the stencil.