baber/WOPTO huggingface dataset:
Patent GB-241255-A (GB)
Title: Improvements in or relating to means for recovering boring tools and the like from wells and the like
IPC: E21B31/18
Filed: 1924-06-20
Abstract: 241,255. McKillop, L. June 20, 1924. Bore-hole apparatus.-Means for recovering lost tools &c. from wells &c., of the kind adapted to release the tool &c. when desired, comprises a socket C threaded to a body J and provided with a conical mouth co-operating with dogs D outwardly pressed by spring legs d secured to a head G which is downwardly pressed against a wood abutment H by a spring F bearing upwardly against a weaker wood abutment E. The device, is lowered over the tool &c. which presses the dogs D upwardly until they open to admit and grip the tool; if it is then desired to release the tool, downward blows on the device cause the tool to fracture the abutment H, and afterwards cause a knife-edged tube K on the head G to cut the abutment E and relieve the pressure of the spring F, after which spring pressed latches L in the head G are forced into a groove or grooves M in the body C to hold the head G in an upper position in which the dogs D are inoperative. In a modification, the parts C, J are integral and a cross bar in the head G engages longitudinal slots therein.
Patent GB-1062134-A (GB)
Title: Protective arrangements for motor vehicle electrical systems
IPC: H02J7/00
Filed: 1965-04-08
Abstract: 1,062,134. Battery charging systems for motor vehicles. MOTOROLA Inc. April 8, 1965 [April 29, 1964], No. 14982/65. Heading H2H. An arrangement for protecting the rectifying diodes 11 over which a battery 28 of a motor vehicle is charged from an alternator 10 comprises a relay 25, the contacts 21 of which are normally open and disposed between the diodes 11 and the battery 28, the operating coil 24 of the relay being energized over the ignition switch 27 and a blocking diode 26, the arrangement being such that should the battery 28 be connected with the wrong polarity the coil 24 cannot be energized so preventing the contacts 21 from closing. Other embodiments are shown in which indicating lamps or buzzers are used to indicate wrong connection of the battery and the relay coil may be protected against over-heating by a series-connected thermistor or by intermittent energization of the coil. A resistor 19 bypassing an isolating diode 18 allows initial field current for the alternator 10 to be provided.
Patent GB-970082-A (GB)
Title: Improvements in vertical take-off aircraft
IPC: F02K1/00
Filed: 1962-04-18
Abstract: 970,082. V.T.O.L. aircraft. GENERAL ELECTRIC CO. April 18, 1962 [April 20, 1961], No. 15033/62. Heading B7G. A V.T.O.L. aircraft has fan assemblies 12 mounted, for rotation between a vertical and horizontal thrust position, in the aft of fuselage 10 by a connecting tube 22 mounted in bearings 21; gas generators 25 are connected to a duct 26 connected to rotatable extensions 29 by sealing bearings 28, the extensions 29 being connected by scrolls 14 from which gas is passed to the tips 16 of fans 17, the supports 19 of which are attached to casing 13 by struts 20 which may act as guide vanes. Valve 31 normally separates the two fans but on failure of one generator, the appropriate valve 30 is closed and valve 31 opened to enable the operating generator to supply both fans. Yaw control is provided by louvres 40. The assemblies are rotated by actuators 24. In Fig. 2 (not shown), each generator is connected to an individual duct supplying gas to both fans, the two ducts are concentrically mounted within the supporting tube and no valves are necessary to isolate a defective generator. Specification 947,449 is referred to.
Patent GB-748504-A (GB)
Title: Improvements in or relating to the production of polyacrylonitrile filaments and films
IPC: D01F6/18
Filed: 1953-06-01
Abstract: Filaments or films are formed by spinning or extruding an aqueous saline solution of a polymer containing at least 85 per cent of acrylonitrile in the polymer molecule into a coagulating bath consisting of an aqueous solution of one or more salts which is at a concentration of 0.33 to 0.67 times that of the salt or salts in the polymer solution when the concentration of the salt or salts in the polymer solution is over 60 per cent, and from over 0.67 to 0.9 times the concentration of the salt or salts in the polymer solution when the concentration of the salt or salts in the polymer solution is from 55 to 60 per cent, the salt or salts present in the coagulating bath being mutually soluble in water with that or those in the polymer solution and being or including a salt which is capable, at higher concentrations, of dissolving the polymer.  The filament or film is preferably stretched without rupture, and thereafter substantially all residual salt removed from the filament or film by washing with or soaking in water.  The filament or film may be removed from the coagulating bath, stretched without rupture and, as soon as it is superficially coagulated sufficiently to be self-supporting, may be conducted through a bath containing the same salts in the same relative proportions as in the coagulating bath, the concentration of the salts in the second bath being 0.1 to 0.4 times the concentration of the salt or salts in the polymer solution. The filament or film is then again stretched short of the breaking point, and substantially all the residual salt is washed out. Prior to this washing step the filament or film may be conducted through a third bath having a salt or salts concentration from 1 to 10 per cent of the concentration of the salt or salts in the polymer solution, and may then be stretched a third time without rupture.  After treatment as above the filament or film may be soaked in pure water to remove residual salt, stretched in wet steam, and dried.  The nature and relative proportions of the salts used in the polymer solution and the coagulation and after-treatment baths are preferably all the same.  In the example a 10.5 per cent solution of polyacrylonitrile in a brine consisting of 35 per cent zinc chloride, 26 per cent calcium chloride and 39 per cent water is spun into a bath consisting of 22 per cent zinc chloride, 16 per cent calcium chloride and 62 per cent water.  After 10 seconds the filaments are withdrawn from the bath, stretched to 4.5 times their original length, conducted for 5 seconds through a second coagulating bath consisting of 12.6 per cent zinc chloride, 9.4 per cent calcium chloride and 78 per cent water, and stretched to 5 times their original length.  The filaments are then soaked in water for 10 seconds to reduce their salt content further, and stretched in wet steam to 10 times their original length.  Finally they are soaked for 10 seconds in water to remove remaining salt, and dried in an air oven.
Patent GB-887491-A (GB)
Title: Magnetic separation processes
IPC: B03B5/44
Filed: 1958-05-12
Abstract: 887,491. Magnetic separators. STAMICARBON N.V. May 12, 1958 [May 16, 1957], No. 15198/58. Class 117. Before subjecting a liquid containing magnetic and non-magnetic particles in suspension to a magnetic separating process, the suspension is separated into fine and coarse fractions, both fractions then being fed separately but simultaneously to spaced positions of a magnetic separator. As shown a screen 10 of spaced bars having 0À5mm. slots between them is used to separate particles of a suspension into fractions of different sizes, the underflow, comprising about 90% of fine magnetite, being collected in a tank 11, and the overflow, containing coarse non-magnetic particles and 10% of the magnetite, being led direct to the region where the surface of a drum of a magnetic separator 12 enters a tank 18; the underflow is fed to the region on the opposite side of the drum. The suspension comprising substantially only magnetite is pumped to a tank 3 which also collects the separating suspension from screens 2 for treating coal and shale fractions accompanied by separating suspension. A demagnetising coil 14 may be provided, and the suspension from the tank 3 is returned to the main separating apparatus 1. Screens 5 have water sprays 6, 7 to wash the suspension from the coal and shale which is then discharged at D and E respectively. A hydrocyclone 17 treats the non-magnetic fraction obtained from the separator 12, the resulting water being used for washing. The fraction F may be subjected to further treatment and the specific gravity of the suspension in the apparatus may be adjusted by adding water at G. Instead of the coarse and fine fractions being separated by the screen 10 and as described in Specification 791,520, means as described in Specifications 791,857, 791,858 and 791,859 may be used. Both fractions may be fed to the separator side by side across the width of the separator.
Patent GB-235718-A (GB)
Title: Improvements in pile wires for looms
IPC: D03D39/24
Filed: 1924-06-24
Abstract: 235,718. Jackson, J. E. Evans-, (Gillette Safety Razor Co.). June 24, 1924. Pile-fabric looms.-The pile wire 2 is provided with a detachable blade 4 secured in a longitudinal recess 3. The walls of the recess are pressed inwards slightly so that when the blade is inserted they are forced apart and grip the blade. The blade is triangular in form and the front sloping edge engages under a transverse stop-pin 7.
Patent GB-954386-A (GB)
Title: Apparatus for producing a continuous tobacco filler stream or rod
IPC: A24C5/18
Filed: 1961-04-27
Abstract: 954,386. Cigarette-making machines. K. KÍRBER. April 27, 1961 [May 19, 1960], No. 15245/61. Addition to 940,153. Heading A2C. To prevent tobacco 2 which stands proud of the side walls of a conveying duct 7 from being forced over the walls when the tobacco in the duct is acted on by a rotary local compression device 4 upstream of a trimmer 3, the side walls have upward extensions 10. In the case of duct 7 shown having a tobacco-conveying belt 1 which has previously received a tobacco shower, the extensions 10 may be auxiliary moving belts. Where the duct 7 is the feed groove of a suction wheel the extensions 10 are stationary as shown and have bottom edges curved to fit the wheel periphery.
Patent GB-823922-A (GB)
Title: Improvements in or relating to safety devices for use in water
IPC: B63C9/02
Filed: 1954-05-24
Abstract: 823,922. Inflatable lifesaving apparatus. BRADLEY-MOORE, R. Aug. 31, 1955 [May 24, 1954], No. 15279/54. Class 77 [Also in Group XXXIII] Lifesaving apparatus comprises a long member 1, Fig. 1, of flexible, waterproof, gas-tight, non-metallic material subdivided into a plurality of continuous inflatable compartments 2 and stowed in a freely rotatable container 3. Each compartment may either contain a capsule of gas under pressure or two gas producing chemical compounds one of which, may be loose whilst the other is disposed in a glass or plastic capsule. Alternatively, both compounds may be within a single capsule having a dividing wall or one compound may be in a capsule 7, Fig. 3, housed in a further capsule 7a containing the other compound. On withdrawing the member from the container the capsules are ruptured by passage through rollers 8 thus effecting inflation of the compartments. Knife blades 9, 10, sever the issuing member when desired. In a further apparatus, the member has reinforcing walls 16, Fig. 3, and the compartments in the leading end contain packages 12...14 of food, drink, dry clothes, instruments, medical supplies and distress signals. Gas cylinders 17...20, Fig. 5, inflate a further member each cylinder being connected through non-return valves to a group of compartments. In another apparatus inflation is effected by the reaction of a chemical 27, Fig. 7, and water which enters through a valve 28. Holes large enough to embrace a person's waist and hand holds are incorporated in yet another apparatus. In a member 1, Fig. 9, towed by a boat 31, the compartments are formed with indentations providing a hammock type bed. In using a further modification a member 1 has one end tied to a sea anchor-which is either fired or dropped from a vesselby a pulley block and tackle. In a means for inflating the member as it leaves its container each capsule is ruptured by a rotatably mounted cranked rod 38, Figs. 11, 12, co-operating with a spring-loaded hammer 39. The rod is rotated by the teeth 41 of wheels 40 engaging holes 42 spaced along the member. Further alternative inflation means comprise a slowburning explosive, a cap or detonator or a friction igniter. The cap or detonator may be exploded by the rod and hammer 38, 39, whilst the withdrawing tension of the member leaving the container may effect operation of the igniter. The member 1 may be self-propelled. The compartments may comprise emergency manual inflation devices and the length of the member may be such that it could ring a sinking ship or could enclose a bay or cove to prevent bathers from being swept to sea.
Patent GB-291402-A (GB)
Title: Improvements in regenerative heat exchange apparatus
IPC: F23L15/02
Filed: 1928-05-26
Abstract: 291,402. Aktiebolaget Ljungstr÷ms Angturbin. June 1, 1927, [Convention date]. Regenerabors of the kind in which the same channels in a regenerative mass are passed alternately by the gas giving off heat and the gas absorbing heat, the mass and the inlets and outlets for the gases being adapted to move relative to each other, have different parts of the regenerative mass of a different physical or chemical nature, e.g. the hotter parts of beat-resisting material and the. cooler parts, where condensation of moisture takes place, of corrosion-resisting material. As shown, the regenerative mass 1 rotates in a casing 3 divided by a partition 4, 5 into channels 6, 7 and 8, 9 through which air and hot gases are forced and drawn respectively by fans 13, 11. The rotor comprises a frame 2 divided into sectors by radial walls 22, and Fig. 2 shows various forms of the regenerative material, the sectors 23 - - 28 containing corrugated plates, sector 29 having pipes containing strips of various formations and sector 30 containing bent metal strips. The lower parts of the regenerative mass are made of heat-resisting material and the upper parts of corrosion-resisting material, and the different materials may be welded together, preferably before cutting. Alternatively, the plates &c. may be coated with resistant substances. When plates of different materials are used they are laid in different directions to prevent plates of one material sliding down among those of another material. The Specification as open to inspection under Sect. 91 (3) (a) comprises also a form in which the frame 2 is filled with balls around which the gases flow. This subject-matter does not appear in the Specification as accepted.
Patent GB-1152670-A (GB)
Title: Preparation of Nickel-Coated Metal Wire or Rod by Use a Slurry Technique
Inventor: ASHCROFT THOMAS BRIAN
IPC: B23K20/00
Filed: 1967-04-05
Abstract: 1,152,670. Powder metallurgy. INTERNATIONAL NICKEL Ltd. April 4, 1968 [April 5, 1967], No. 15694/67. Addition to 1,016,066. Heading C7D. A sintered coating of Ni is formed on wire or rod of a metal such as steel copper, brass, or Ni alloy by applying an aqueous slurry of Ni powder to the roughened surface, drying and sintering the layer and densifying the coating by a drawing operation. The Ni powder 3-5 microns size is formed into a slurry with water, methyl cellulose and polyoxyalkylated polyalkylene glycol. The coated wire is sintered e.g. at 1000‹C. in cracked ammonia, cold drawn to a reduction in area of 11-12%. After annealing at 700‹C. a second drawing to a reduction in area of 72% is effected and then a final annealing at 700‹C.
Patent GB-333895-A (GB)
Title: Electrical pick-ups for gramophones
IPC: H04R11/08
Filed: 1929-05-21
Abstract: 333,895. Lissen, Ltd., and Richardson, R. P. May 21, 1929. Gramophone pick-ups ; magnetic instruments.- The stylus of a pick-up con. stitutes the armature and is fulcrummed near its point. A semi-circular permanent magnet 1, Figs. 1 and 2, has pole pieces 2 on opposite faces of each pole. The stylus 11 extends between both pairs of pole pieces and pivots about the lower pair, bevelled at 3, its upper end projecting into a rubber cushion 10. The coil former 4 and coil 5 are mounted concentrically with the magnet. Figs. 3 and 4 show a modified construction, in which the stylus 21 is pivoted on a steel washer 19 fixed in the bore of the coil former 4 by a rubber tube 18; the upper end of the stylus is surrounded by a rubber cushion 17. Fig. 6 shows the construction of a U.section tone arm 23, the leads 28 being retained by transverse pins 27. The stylus may be of spear point type, or of Swedish iron with a rounded collar to abut on washer 19 and a hard point of platinum or other hard wearing alloy. Specifications 254,403, 276,466, 307,971, and 324,943 are referred to.
Patent GB-648635-A (GB)
Title: Improvements in reflex lights
IPC: G02B5/12
Filed: 1948-06-11
Abstract: 648,635. Signs. DUNLOP RUBBER CO., Ltd., and CANTOR, R. June 11, 1948, No.. 15750. [Class 3(ii)] [Also in Group XX] A reflex light for fitting in a cavity 2 of a holder 4 comprises a reflector 12 having a rectangular face with a series of longitudinal grooves 16 of triangular crosssection and with two sides which taper to a base of smaller area, each side having a longitudinal groove 11 to engage the inwardly extending edges 10 of opposite spring sides of a housing 7, the remaining two sides of the housing having outwardly extending teeth 14 to engage the holder 4. The reflector may be of any colour, e.g. red or amber. The holder may be of rubber or rigid material in which case slots are provided for the teeth 14. The holder may be a cycle pedal or a sign board.
Patent GB-530046-A (GB)
Title: Improvements in or relating to electron discharge devices
IPC: H01J21/36
Filed: 1939-05-30
Abstract: 530,046 Electron discharge apparatus. MARCONI'S WIRELESS TELEGRAPH CO., Ltd. May 30, 1939, No. 15821. Convention date, May 28, 1938. [Class 39 (i)] An electrode assembly for an electron discharge device comprises a pair of spaced insulators stepped along their edges to support on the steps the ears or extensions of a number of parallel plane electrodes which are thereby spaced from each other. The electrodes may be rectangular metal frames carrying parallel wires between their side members. As shown in Figs. 1 and 2 each of the grids 5, 6, 7 is a rectangular frame with parallel wires welded across and has ears or lugs 11 bent to embrace the stepped insulating spacers 10. Two flat anodes 8 have ears 12 embracing the spacers. The whole assembly is bound by a strap 18 supported on a U-shaped bracket 17. The ears, which contact with the treads and risers of the steps 13, may be welded together at 16. The width of the treads determines the inter-electrode spacing. The shielding of the screen grid 7 may be extended by means of thin metal plates 19, Fig. 4, joined to or integral with the grid frames, the depending parts 20 of which are joined to the ears of the screen grid. One of these plates 19 may be mounted at each end of the grid and their semi-circular extremities bear against the envelope to centre and steady the electrode assembly. The cathode 4 consists of two grooved strips of refractory metal joined to form a hollow sleeve for the heating element, and it has ears 9 projecting through holes in the spacers 10. Alternatively (Fig. 5, not shown) the cathode may be supported by springy wire fingers bent outwardly and hooking into holes in the spacers. In beam valves, the openings in the grid frames may be made successively larger to assist the beam characteristics.
Patent GB-658193-A (GB)
Title: Improvements relating to combined fluid pressure operated jacks and shock absorbers
IPC: B64C25/22
Filed: 1948-06-11
Abstract: 658,193. Pneumatic single-stroke apparatus. ELECTRO-HYDRAULICS, Ltd., and PERDUE, J. June 11, 1948, No. 15859. [Class 8(ii)] [Also in Groups XXIX and XXXII] A combined jack and shock absorber comprises two tele scopic cylinders sliding one within the other, the inner cylinder forming a hollow piston rod of a piston work ing in the outer cylinder and the inner cylinder containing a piston and a hollow pistor rod, the outer cylinder form ing the jack and the inner cylinder forming the shock absorber or vice versa anc the jack including only a single piston. In Fig. 1 a piston 7 of a jack has a hollow piston rod 6 which en closes and forms the cylinder of an oleo-pneumatic shock absorber. The jack pistor can be moved to the right by fluid pressure supplied to a connection 3. To retract the jack fluid pressure may be supplied to the other side of the piston or as shown the space D may be used as an air space for the shock absorber. The spaces A and C are filled with oil and the space B and if desired also the space D are filled with air supplied at a connection 20. The shock absorber comprises a piston 8 carrying a closure member 17 having orifices 18, 19 therein one of which is preferably valved. During compression of the shock absorber the air is compressed by a free piston 16 operated by the oil in the spaces A, C. Internal locks could be fitted in the jack for the extended and the closed positions. In Fig. 2 a shock absorber piston 31 has a hollow piston rod 32 forming a jack cylinder and enclosing a jack piston 39. The shock absorber piston carries an extension 33 and piston 35. The extension slides in a diaphragm 34 fixed in a cylinder. Apertures 37, 38 are formed in the diaphragm and piston 35 some or all of which may be valved. Oil is contained in the spaces A, B, B<SP>1</SP> and air in the space C or spaces C, D or if desired the space E may form an additional air space of the shock absorber. The jack is extended by supplying fluid to a connection 42. Appropriate means may be provided to lock the jack in the ex tended and or closed position. It is.stated that the shock absorber could be of any other known type for example the liquid spring type. The jack may be closed by either (a) supply of fluid pressure near the base of part 32, Fig. 2 (b) letting the external load close the jack (c) inserting a spring in the space D or (d) connect space B as shown and let the common air spring close the jack.
Patent GB-296018-A (GB)
Title: Improvements in or relating to the loading of silk, or silkcontaining textile material
IPC: D06B5/00
Filed: 1928-05-31
Abstract: 296,018. Clavel, R. Aug. 23, 1927, [Convention date]. Silk, treating; yarns, treating; fabrics, loacting.-Natural or artificial silk in yarn, hank, or fabric form is loaded by a continuous process wherein the separate stages are not interrupted by washing, acidification, or neutralization in an apparatus comprising a chamber 1 having closure means and the bottom 2 of which forms a reservoir for the treating liquids, e.g. formic acid, stannic chloride, a phosphate solution and sodium silicate which are contained respectively in tanks A - - D, the reservoir 2 being filled with each liquid in turn through the pipe 4, and during- treatment the liquids being circulated by a pump 10 through the system 7, 9, 11, 13, 15 to hollow perforated members 3 on which the material is supported. The members 3, if desired, may be rotated by gearing 14. After loading with stannic chloride excess liquid is removed by rotating the members 3 through the gearing 14 and operating a vacuum pump connected to the pipe 20. The system may be flushed with water through the pipe 18.