baber/WOPTO huggingface dataset:
Patent GB-683712-A (GB)
Title: Explosive device
IPC: F42B3/02
Filed: 1950-04-03
Abstract: 683,712. Blasting cartridges. HERCULES POWDER CO. April 3, 1950 [Sept. 23, 1949], No. 8305/50. Class 9(i) [Also in Groups XVII, XXIV and XXVIII] An explosive device for blasting and like purposes comprises an externally threaded cartridge engaged in an internally threaded sleeve 4 by which the cartridge can be joined end-to-end with a similar cartridge to build up an explosive column, one set of threads in the device having a bevelled edge with a slope between 6 and 30 degrees to the longitudinal axis of the device so that the other set of threads is received in locking engagement The cartridge 1 of Fig. 2 has an outer wrapping 9 covering a cord 10 to form the screw thread 3. The sleeve 4 comprises an outer wrapping 7 to which is fixed by adhesive a wrapping 8 wound with its edges in spaced relationship to form the thread 5. The wrapping 8 is of chipboard with bevelled edges as in Fig. 5. The cartridge and sleeve are of the same length, so that when several cartridges are assembled as in Fig. 3 the column has a continuous outer surface. Instead of the full bevel shown in Fig. 5, the chipboard may be only half-bevelled or the bevel may be confined to one edge. The bevelled thread may be on the cartridge instead of the sleeve. The sleeves mav not extend the full length of the cartridge. The preferred slope of the bevel is between 9 and 18 degrees. The cord may be paper, hemo, jute or cotton twine and the wrapping 9 may be manila paper. The outer wrapping of the sleeve is preferably of paper, but both the sleeve and cartridge wrappings may be of metal, metal foil or combinations of metal foil and cellulose materials. Plastic sheeting may also be used and the cord may be plastic strip or soft metal wire, e.g. aluminium or copper. The results are given of tests on columns carried out to determine the loads necessary to cause unscrewing or stripping of the threads. The explosive 12 may be gela-- tinous explosive, ammonium nitrate, dynamite or black powder. A waterproof coating. such as paraffin wax may be applied to both the sleeve and-the cartridge. Specification 633,017 is referred to.
Patent GB-572130-A (GB)
Title: Safety control apparatus for gaseous fuel burners
IPC: F24C3/12
Filed: 1944-05-03
Abstract: 572,130. Lighting gas burners. MAY, P. (Robertshaw Thermostat Co.). May 3, 1944, No. 8349. [Classes 75 (i) and 75 (iii)] [Also in Group XXIX] On turning the stem 18 of the main cock of a gas burner 12 gas is admitted to a pilot burner 36 and a cam 30 on the stem 18 closes the circuit from a mains energized transformer 32 to a pilot burner ignition coil 40 but the current through a solenoid 24 in series with the coil 40 is insufficient to open a valve to admit gas to the burner 12 until a ballast resistor 52 having a positive temperature coefficient and in parallel with the solenoid 24 is heated by the pilot burner. Fixed or adjustable resistances 44, 48 may be arranged in series and parallel with the coil 40. A bimetallic switch 56 may be arranged in series with the solenoid 24 to open if the resistor breaks. A thermostatic regulator 14 may interposed between the main gas cock and the solenoid operated valve.
Patent GB-539830-A (GB)
Title: An improved method and means for sealing sheet metal boxes
IPC: B21D51/46
Filed: 1940-05-09
Abstract: 539,830. Sealing boxes. BARON, T., and WEINBERGER, R. May 9, 1940, No. 8350. [Class 73] Metal boxes are sealed by applying a strip of tin, aluminium &c. foil faced with rubber softened and rendered adhesive by heat, the strip being pressed into contact with the parts along the line between the lid and body of the box. As shown a metal strip 3 and rubber strip 4 are passed together over a heated drum 5 and fed by suction holders 10, 11 in a path transverse to the path of the boxes 16, a suitable length being severed by a knife 9. The box is pushed between heated spring-pressed plates 17, 18 and hence in a transverse direction between plates 22, 23 by a pusher 21 with a projecting plate 20 which folds the trailing end of the strip. A foil already coated may be used in which case a heater 7 is supplied.
Patent GB-127879-A (GB)
Title: Improvements in or relating to Guns for Discharging Projectiles by Gases Supplied thereto Under Pressure from a Separate Combustion Chamber.
IPC: F41A21/14
Filed: 1917-06-11
Abstract: 127,879. Thornycroft & Co., J. I., Thornycroft, T., and Thornycroft, J. E. June 11, 1917. Ordnance design; pneumatic. -Relates to guns of the kind described in Specification 126,071, in which the propellant charge is exploded in a separate container r, and the explosion gases expand into a chamber f and are then led to the barrel a at a reduced pressure. According to the invention, the expansion chamber carrying the charge-container is clamped directly and in a readily detachable manner to the breech-end portion of the gun in such a way as to ensure a gas-tight joint between the two without a connecting-pipe. As shown, the joint is made by a double tapered nipple m. The clamping is done at the rear end by a band h with screws i. At the front end, the clamping is done by means of a plate g which is bolted to the barrel and through which the chamber f passes snugly in a direction parallel to the barrel; when, however, the rear clamp h is applied, the chamber f is inclined to the barrel as shown, and this causes a grip between the chamber f and the plate g. The barrel shown is made in two parts a, a<1> secured together by means of flanges c to which the plate g is bolted.
Patent GB-1378794-A (GB)
Title: Device for bridging and expansion joint between structural elements
IPC: E01D19/06
Filed: 1972-02-23
Abstract: 1378794 Expansion joints P SCHULTE STEMMERK KG FUR INDUSTRIE UND HANDEL 23 Feb 1972 [1 March 1971] 8382/72 Heading E1B An expansion joint assembly comprises a broad flange I-beam 6 slidably receiving box section 18 of opposed intermediate rails 7 the opposite ends 20 of which are articulated in recesses 8 of side rails 5 which are secured to the concrete structural members defining the expansion gap which is preferably in a ceiling or floor. The box sections 18 are slidable between the parallel inner faces of the flanges of the I-beam, a P.T.F.E. lining being provided to assist movement. The floor covering 4 is supported by the upper face of the I-beam and by rubber strips 25 on top of the side rails. Edge strips 27 of a sealing foil of rubber or P:V.C. are received in deep grooves 14 in the side rails. Relative dimensions for the members are specified and the assembly may be used in walls.
Patent GB-192350-A (GB)
Title: Improvements in or relating to apparatus for forming expansion joints
IPC: B21D17/04
Filed: 1922-03-22
Abstract: 192,350. Griscom-Russell Co., (Assignees of Dewald, E. A.). Jan. 26, 1922, [Convention date]. Curving.-In an apparatus for forming an expansion joint of the type consisting of a circumferentially ridged cylindrical body, a pair of co-operating rolls are used to feed a previously ridged sheet over a bending roll, the rolls being relatively adjustable in and counter to the direction of feed so as to produce joints of various diameters. A fixed roll 10, provided with a rib 65, is carried by a shaft 33 mounted at one end in the framing and at the other end in a tapered bearing in an arm 34, which is pivotel at 35 so that it can be swung down horizontally to permit removal of the work, and which is normally fixed by a pivoted locking member 35<1> in a pocket in a stiffening member 37 extending between a pair of pedestals 3. The co-operating feed roll 9 and the bending roll 11 are provided with grooves 66 and are mounted on a member 7, which is laterally adjustable on a slide 6 by pairs of screws 16 passing through slots in the slide 6 and connected by chain 19 to vary the diameter of the cylinder, and is secured in position by bolts 8 passing through slots 17. In order to permit of further adjustment for the same purpose the roll 11 mav be mounted on a separate block 13, which is fixed to the member 7 by bolts 14 screwed into any of a series of tapped holes 15. The slide 6 rests on collars 21 on a pair of screws 20, which are traversed so as to adjust the slide vertically by threaded worm-wheels 27 which are rotated by worms on a shaft 23. The shaft 23 may be connected by a clutch 64 to a pulley 6 driven by a belt from a pulley 61 on a second shaft geared to the main shaft so as to be rotated by power, but may also be rotated, for fine ad justments, by a hand wheel 29 on a shaft chain geared to the shaft 23. The main shaft is driven in either direction by the open and crossed belts 39, 40, either of the pullies 41, 42 being connected to the shaft by a hand-operated clutch. The roll 10 is driven from the main shaft by gear 52, 51 from the shaft 50, which is connected by gearing 49 to the shaft on which the pulley 61 is mounted. The roll 9 is driven from the roll shaft 33 in any position of adjustment by the gears 55, 53 through a pair of rollers 54, 54<a> which are carried by a hanger 57 pivoted on the axis of the idler 54<a>. The hanger may be adjusted by the handle 58 and secured in position by a slot 60 and bolts 59. Specification 192,349, [Class 99 (i). Pipes and tubes, Joints &c.], is referred to.
Patent GB-644652-A (GB)
Title: Package
IPC: B65D75/28
Filed: 1948-03-22
Abstract: 644,652. Packaging. WINGFOOT CORPORATION. March 22, 1948, No. 8404. Convention date, Sept. 20, 1947. [Class 94(i)] A method of packaging articles such as fruits and vegetables comprises placing an article over an opening in a sheet of cardboard or the like covered on one or other surface by a film of thermoplastic material such as rubber hydrochloride, polyethylene or vinylidene chloride, and then while the film is stretchable, doubling the sheet over along a line which passes through the opening to stretch the film over the article and enclose same in a pocket thus formed in the film. The package shown in Fig. 5 is made from a sheet of cardboard 2, Fig. 3, formed with a handle 5 and two rows of elongated openings 1 and covered on its front face by rubber hydrochloride film 6. The film is heated to about 190‹ C., the objects 10 to be packaged placed on the film over the openings, and the cardboard folded over along the scored lines 3 and 4 to stretch the film around the objects and heat-seal the opposed surfaces of the adjoining parts of the film. The overlapping portions of the cardboard sheet may, alternatively, be stapled or otherwise secured together, and in this case the film may be on the outer surface instead of the inner surface of the cardboard.
Patent GB-537853-A (GB)
Title: Improvements in and relating to the cleaning of sacks, bags or like containers
IPC: D06G1/00
Filed: 1940-05-10
Abstract: 537,853. Cleaning sacks &c. COOK & CO.. Ltd., J. W., and KING, C. L. May 10, 1940. [Class 138 (i)] Apparatus for cleaning sacks &c. consists of a casing in which is a rotary shaft fitted with beaters and brushes, the sack &c. being inserted through an opening so as to form a loop. The shaft d is fitted with spiders e to which are attached brushes k fitted with vanes l, and leather beaters h having flexible tips m. The sack is passed through an opening in the casing by means of a pedal-operated, spring-returned roller o the sack being simultaneously gripped by a rubber-shod bar w. The opening is closed when the roller is retracted by a shutter y.
Patent GB-576962-A (GB)
Title: New piperidine derivatives
IPC: C07D211/52
Filed: 1944-05-05
Abstract: N-Substituted 4-aryl-4-hydroxy-piperidines of the formula <FORM:0576962/IV/1> wherein Ar represents an aryl group optionally substituted, for example by alkyl groups, Alk represents an alkyl radical and R1, R2, R3 and R4 may each represent hydrogen or an alkyl group, are obtained by a Grignard reaction between the correspondingly substituted 4-piperidone and an appropriate aryl magnesium halide and subsequently hydrolysing the organomagnesium compound so produced.  The products may readily be converted into their hydrochlorides, picrates or esters. Specified starting-materials are: N-methyl-2 : 2 : 6-trimethyl - 4 - piperidone, N - methyl - 2 : 2 : 6 : 6-tetramethyl-4-piperidone, N-ethyl-2 : 2 : 6 : 6-tetramethyl-4-piperidone, N-methyl-4-piperidone and N - allyl - 2 : 2 : 6 : 6 - tetramethyl-4-piperidone.  In examples: (1) an ether solution of the Grignard reagent made from bromobenzene and magnesium is added to an ether solution of N-methyl-2 : 2 : 6 : 6-tetramethyl-4-piperidone, the product is treated with concentrated hydrochloric acid and the reaction mixture is worked up to obtain 4-hydroxy-4-phenyl - N - methyl - 2 : 2 : 6 : 6 - tetramethyl - piperidone, readily convertible into the 4-acetoxy derivative; (2) 4-hydroxy-4-phenyl-N-methyl-piperidine is obtained from N-methyl-4-piperidone by the method of (1). N-Methyl-4-piperidone is obtained by the hydrolysis and decarboxylation of 3-carbomethoxy-N-methylpiperidone.
Patent GB-1082860-A (GB)
Title: Photographic camera shutter with an electronic timing device
IPC: G03B9/64
Filed: 1966-02-28
Abstract: 1,082,860. Controlling camera shutters electromagnetically. PRONTOR-WERK ALFRED GAUTHIER G. m. b. H. Feb. 28, 1966 [March 19, 1965], No.8610/66. Heading G2A. The blades 12 of a photographic camera shutter having an electronic timing device controlled by a photo-resistor are electromagnetically locked in the shutter open position during a time determined by the timing device, the device having associated therewith a delay circuit which is adjustable to a predetermined exposure time limit value and which releases the electromagnetic lock after said predetermined exposure time limit value if the prevailing light would result in the timing device determining an exposure time longer than said limit value. Actuation of the shutter release 6 pivots a lever 5 to close a switch S 1  and release the shutter driving disc 2 thereby rotating the shutter blade ring 13 clockwise to open the shutter blades and switches S 2 , S 3 . A transistor (T 2 ) Fig. 2 (not shown) becomes conductive, allowing current to flow through an electromagnet M which retains a lever 16 in a position so as to retain, via a lever 20, the disc 2 in the position in which the shutter blades are open. Opening the switches S 2 , S 3  causes capacitors (C 1 , C 2 ) to charge, one via a variable resistance (R 2 ). Depending on the resistance values of these resistances, one or other of the capacitors will be charged first energizing a transistor (T 1  or T 3 ) to cut off the current through transistor (T 2 ) and de-energize the electromagnet. The lever 16 moves anticlockwise thus releasing the driving mechanism to close the shutter blades. The resistance (R 2 ) is set so that if the prevailing light requires an exposure time of less than e. g. 1/30 sec. the capacitor (C 1 ) completes charging first, and if an exposure longer than 1/30 sec. is required, the capacitor (C 2 ) completes charging first.
Patent GB-1426756-A (GB)
Title: Variable colour light beam producing device
IPC: G03B27/73
Filed: 1973-02-22
Abstract: 1426756 Coloured-light projector RANK ORGANISATION Ltd 20 Feb 1974 [22 Feb 1973] 8624/73 Heading G2J A composite filter 3 having a central aperture 6 and a variety of differently-coloured areas 7 is movable across a beam emitted from an optic fibre 2 and the resultant coloured light is homogenized by a light guide 4 consisting of randomly arranged fibres. Sensor motors 8 controlled by joy-stick 10 operate the arrangement.
Patent GB-660705-A (GB)
Title: Improvements in or relating to electrical bridge systems
IPC: G01R17/00
Filed: 1949-03-30
Abstract: 660,705. Bridge circuits. SULLIVAN, Ltd., H. W., and GRIFFITHS, W. H. F. Feb. 14, 1950 [March 30, 1949], No. 8658/49. Class 37. The ratio arms are formed by a potentiometer resistance which has a calibrated scale and is connected so that the ratio arms can be transposed, thereby enabling resistance, conductance, capacitance, or inductance to be measured on the same scale. The ratio arms P, Q are formed by the two portions into which a resistance 5 is divided by a contact arm S, the position of which is indicated on a scale 9. A standard inductance L, capacitance C, or resistance R is connected to form the third arm by a switch 8 which is ganged with switches 6, 7. Current is supplied to the bridge at terminals 10 and a balance detector is connected to terminals 11, the component to be measured being connected to terminals x. The triple-pole switch 6, 7, 8 is set to position r and a known adjustable resistance is connected to the terminals x for calibrating the scale 9, which may be effected either by D.C. or A.C. For measuring an unknown resistance this is connected to the terminals x and the switches 6, 7, 8 are set to position r in which the standard resistance R is connected and the ratio arms P, Q are so connected that x=RQ/P. For measuring capacitance the switch is set to position c in which the standard capacitance C is selected and the connections to the ratio arms are reversed, so that x=CQ/P. For measuring inductance the switch is set to position l, in which the standard L is selected and the resistance 5 is again reversed, so that x=LQ/P. For measuring conductance the switch is set to position 1/r, in which the standard R is selected but the resistance 5 is reversed with respect to position r, so that x=1/RxQ/P. Any or all of the standards R, C, L may comprise a plurality of ranges selected by a range switch, an appropriate multiplying factor being applied to the scale reading.
Patent GB-1453417-A (GB)
Title: Nitroimidazoles
IPC: C07D233/94
Filed: 1975-03-03
Abstract: 1453417 1 - (3 - Chloro - 2 - hydroxypropyl)- 2 - methyl - 5 - nitro - imidazole derivatives F HOFFMANN-LA ROCHE & CO AG 3 March 1975 [4 March 1974] 8682/75 Heading C2C Novel compounds of the Formula I wherein R is alkyl, haloalkyl, alkoxyalkyl, carboxyalkyl, phenyl optionally substituted by halogen, alkyl, alkoxy, CF 3 , nitro or amino, phenoxy, benzyloxy, styryl or -NR<SP>1</SP>R<SP>2</SP> in which R<SP>1</SP> and R<SP>2</SP> independently are hydrogen, alkyl, alkenyl or R<SP>1</SP> and R<SP>2</SP> together with the nitrogen to which they are attached are a piperidino ring, where alkyl, alkoxy and alkenyl radicals have up to seven carbon atoms, and pharmaceutically acceptable acid addition salts thereof may be prepared by esterification of 1 - (3 - chloro - 2 - hydroxypropyl) - 2- methyl - 5 - nitro - imidazole when R is other than -NR<SP>1</SP>R<SP>2</SP> or, when R is NR<SP>1</SP>R<SP>2</SP>, reaction of a compound II wherein R<SP>3</SP> is methoxy, phenoxy or benzyloxy with an amine R<SP>1</SP>R<SP>2</SP>NH, and optionally forming a pharmaceutically acceptable acid. Pharmaceutical compositions of the compounds I with the usual excipients show activity against protozoal infections when administered orally, parenterally or by suppository.
Patent GB-539014-A (GB)
Title: Improvements in or relating to pipe couplings
IPC: F16L29/04
Filed: 1940-05-15
Abstract: 539,014. Pipe couplings; valves. AVERY EQUIPMENT, Ltd. (Argus Motoren Ges.). May 15. 1940, No. 8707. [Class 99 (i)] [Also in Group XXIX] In a pipe coupling of the kind in which a valve in each coupling member is opened by the coupling operation and in which the valve members are in contact at the beginning of coupling to prevent the trapping of air, the valve members are movable into lateral recesses in the coupling members to leave a clear passage through the coupling. The coupling members 1, 2, Fig. 1 contain spring-urged tubular members 10 with end-plates 12 having openings closed by disc-valves 16. The valve is carried by an arm 19 pivoted at 20 and having a toothed sector engaging a rack 23 on a pillar 24 fixed in the coupling. The members 10 are pushed into the coupling members 1, 2 as the latter are drawn together by the nut 7, the valves being swung into the position shown in dotted lines. A sleeve 32 defines the flow of fluid through the coupling. In a second coupling, Fig. 2, the coupling members 42 abut and carry the hinged valves 63 which are operated by plungers 46 secured to sleeves 52, 60 which are moved together against the action of springs 50 by a screwed sleeve 56. In a third coupling, Fig. 3, the coupling members 81, 119 have inclined abutting surfaces 85 containing the valved apertures, and valves 88 hinged at 92 and provided with springs 104. The valves are opened by cams 100 engaging the hinge arms 102 and mounted on sleeves 98 secured to discs 114, 129 on the outside of the coupling members. The discs have lugs 115, 130 connected by a yoke which forms a lever to rotate the disc. A shoulder on lug 115 engages a shoulder 117 to lock the members together. A spring catch 147 on the disc 129 locks the discs in the coupled position. In a fourth coupling, Fig. 9 the coupling members 170, 185 have a through passage of elliptical cross-section and circular valve seats 172. Each tubular valve 191 has an external flat surface forming a closure member, and is adapted to pivot about the minor axis of the through passage. Each valve has a pivot pin 193 journalled in a plunger 206 which engages a plunger 212 carried by a ring 178 or 182. The rings are drawn together by a coupling-nut 180 first moving the valves from their seats and then rotating them by a fixed arm 199 engaging a pin on the valve till the bores of the tubular valves come into alignment. In a fifth coupling spherical valve members 254, Fig. 11, have closure faces 258 parallel with their bores which are aligned by rotating the valves by toothed sectors 249, and a pinion 248 on a disc 247 actuated by a yoked lever 245. The lever is mounted on one coupling member and engages a shoulder 270 on the other. The valves are pivoted in sleeves 256 which are actuated by cams during rotation to lift the valves from and return them to their seats. In a further modification having a valve arrangement similar to the fifth coupling the lever coupling is replaced by a bayonet-type coupling.
Patent GB-932761-A (GB)
Title: Improvements in and relating to pipe testing presses
IPC: G01M3/28
Filed: 1960-03-11
Abstract: 932,761. Testing pipes. BERLINER MASCHINENBAU A.G. March 11, 1960 [March 20, 1959], No. 8725/60. Class 106 (2). A pipe testing press, of the kind in which a pipe 3 held endwise between two opposed surfaces is subjected internally to the pressure of a fluid supplied through one of the surfaces, comprises a surface 2, in the form of a piston, spring urged against pipe 3, a contact member 1 being provided to limit the movement. The effective internal diameter of piston 2 is larger than that of pipe 1, Fig. 1, or alternatively, Fig. 2 (not shown), the piston may be of smaller diameter and provided with an additional annular pressure chamber. Means are provided for supplying pressure fluid to the pipe and piston and for maintaining the pressure therein for the duration of the test.
Patent GB-930018-A (GB)
Title: Improvements in or relating to apparatus for the vacuum degasification of fluids by the circulatory degasification process
IPC: B01D19/00
Filed: 1961-03-10
Abstract: 930,018. Degassing metal. W. C. HERAEUS G.m.b.H., and RUHRSTAHL A.G. March 10, 1961 [March 12, 1960; Sept. 24, 1960], No. 8842/61. Class 72. Apparatus for the vacuum degassing of molten metal and other liquids by the circulatory process comprises a container for the liquid to be treated which is sealed by, a lid and is evacuated. As shown, a container 2 is closed by a lid 3 and is connected by a pipe 15 to a vacuum pump 16. The container 2 is connected to a second vacuum chamber 10 by a pipe 8, through liquid enters the second chamber, and a pipe 9 through which the degassed liquid returns to the container. A Roots pump 19 produces a vacuum in the chamber 10 of greater value than that in the container and the liquid flows from the container to chamber. In order that the pressures in the two vessels may be controlled the Roots pump is by-passed by a valved pipe 20 leading to the pipe 15 and the pipe 15 has a valve 22 connected to the discharge side of the Roots pump. An inert gas may be supplied to the liquid in the pipe 8 and the chamber 10 may be provided with baffles 25 over which the liquid may flow in a thin stream.