baber/WOPTO huggingface dataset:
Patent GB-843835-A (GB)
Title: Improvements in and relating to doors and the like for resisting fluid pressure
IPC: F16J13/20
Filed: 1957-06-04
Abstract: 843,835. Fluid pressure resisting doors. BRITISH STERILIZER CO. Ltd., and PERERA, R. Aug. 20, 1958 [June 4, 1957], No. 17694/57. Class 123(1) A fluid pressure resisting door, e.g. of an autoclave, comprises an inwardlydished circular door 1 with a central socket 4 in which is held, with a limited freedom of angular movement, a screwthreaded stem 6 which projects outwardly at right-angles to the door. The stem 6 engages a block 10 connected between two double-hinge arm plates 7a, 7b which are spaced at their outer ends by a pintle in a double ball bearing 9 located in the knuckle of a hinge strap 8 secured to a door frame 3. The opposite ends of the arms 7a, 7b are pivoted, by a pintle 11 and a crosspinned sleeve 12, to a closing lever 13 of similar but narrower double plate 13a, 13b construction. The outer ends of the lever arms 13a, 13b are bored to receive a withdrawable bolt 15 which is slidable vertically in a tubular case 16 secured to the upper plate 13a and has a radial handle 17 projecting through a longitudinal slot in the casing 16. The latter is oppositely and circumferentially notched, top and bottom, for engagement by the handle 17 to hold the bolt 15 withdrawn from or shot through the knuckle of a hinge strap 14 secured to the door frame diametrically opposite to the strap 8. The free ends of the lever arms 13a, 13b bear, with their outer faces through the intermediary of a thrust bearing 18, upon a handwheel nut 19 which is screwed on to the outer end of the stem 6 and, with their inner faces, against a pair of springs 20 housed in recesses in the block 10. From an open position the door can be closed by swinging the hinge arm 7a, 7b about the knuckle of the strap 8 until the bolt 15 can be inserted through the knuckle of the strap 14. By tightening the handwheel 19 the overlapping parts of the closing lever 13 and the hinge arm 7a, 7b are urged together in a direction which tends to align them between the centres of the knuckles of the straps 8, 14 so that a peripheral gasket 2, on the inner face of the door, is pressed tightly against the frame 3 to establish a seal. The reverse procedure is carried out to open the door. The stem 6 is locked to the block 10 by means of a set-screw 21 bearing against one of several flats 22 on the stem, adjustment of the positional relationship of the door and hinge arm 7a, 7b being effected by loosening the set screw 21 and turning the screw-stem 6 the desired amount in the appropriate direction, the set-screw 21 being subsequently re-tightened.
Patent GB-230705-A (GB)
Title: Improvements in and relating to the purification of crude ammoniacal liquors
IPC: C01C1/10
Filed: 1924-07-25
Abstract: 230,705. Potts, H. E., (Zeche, M. Stinnes). July 25, 1924. Ammoniacal liquirs, treating. -Crude ammoniacal liquor is purified by being passed, preferably continuously, first through a vessel where tar is removed by a solid adsorbent, and then through a vessel in which the phenols are removed bv a solvent. The crude liquor enters a vessel 1 by a pipe 8 and flows upwardly through a vessel 2 in which it is treated with an adsorbent such as calcium carbonate, alumina, sawdust or wood charcoal, the greasy mass of adsorbent sinking to the bottom of vessel 1 to be run off through a valve 9. The tar-free liquor passes to a vessel 3 supplied with benzene through a pipe 11, and the mixture overflows into a separating tank 14 from which the benzene solution is run off by a pipe 16, and the purified liquor by a pipe 17, this liquor being then treated for the recovery of ammonia.
Patent GB-1479592-A (GB)
Title: Electric audible warning systems
IPC: G10K9/18
Filed: 1974-06-26
Abstract: 1479592 Audible signalling; sound producing instruments TRANSCALL Ltd 26 June 1974 [12 April 1973] 17746/73 Headings G4F and G5J In an electronic audible warning system each warning appliance comprises an electronic oscillator having a circuit element which is electronically switchable into and out of circuit therewith so as to alter the frequency of the output of the oscillator, and the switching is effected by a discontinuity in the power supply provided to the appliance. Such power is fed to each appliance from a control unit so that they are synchronized. The discontinuity may be a discontinuity in the supply or a pulse superimposed thereon. Three wires for control are thereby avoided. In an embodiment of an appliance a multivibrator MV1 runs at, e.g. 1 kHz, trimmed by resistor VR1. Oscillation frequency is changed to a frequency, e.g. 1200 Hz by a resistor R9 when T9 is conducting, as arranged by a multivibrator MV2 itself controlled by a transistor T6. Operation.-When power is first applied to terminals t 1 , t 2  multivibrator MV1 operates at a frequency dependent on resistor R9. Shortly thereafter the potential on capacitor C8 rises, transistor T6 can conduct but no current flows therethrough because transistor T2 is held non- conducting by transistor T1, and a 1200 Hz signal appears across terminals t 1 , t 3  which feed a loud-speaker. On disconnection of power, capacitor C8 discharges through resistor R14 and on re-establishment of power after a time significantly shorter than the time constant R14C8 transistor T6 is biased into its conducting state, transistor T2 is conducting because of bias applied by resistor R 1 via link L1, transistor T9 is rendered non-conducting and the output frequency falls to kHz. Multivibrator MV2 is monostable and after a predetermined interval multivibrator MV1 reverts to the frequency 1200 Hz. Such brief interruptions when repeated give an alternating "duo tone" sequence. The time constant C2(R 2  + R 12 ) is preferably chosen to afford equal durations of the two tones. Power interruption may be effected by a relay/transistor combination, or a motor-driven cam operating a microswitch. Additional modes of operation are described, to afford (i) a free running continuous signal alternating between two tones or (ii) an interrupted monotone signal.
Patent GB-444451-A (GB)
Title: Improvements in or relating to mattresses or the like
IPC: A47C20/08
Filed: 1935-06-20
Abstract: 444,451. Invalids' bedsteads. FRASER, H. A., and CRIGHTON, P. F., 13, Wharf Road, City Road, London. June 20, 1935, No. 17771. . [Class 52 (ii)] The operating handles for effecting adjustment of the mattress sections are arranged to lie beneath the level of the mattress surface when in their out of use position. In the construction shown pin-and-slot lost motion devices are used between the handle 25 and the link 24 connecting it to the foot section operating linkage 19, 20 ; and between the parts 14, 15 of the handle effecting release of the pawl 10 in the head section adjustment mechanism. Specification 440,245 is referred to.
Patent GB-862546-A (GB)
Title: Improvements in or relating to electric arc welding
IPC: B23K35/40
Filed: 1957-06-04
Abstract: 862,546. Welding by fusion. AIR REDUCTION CO. Inc. June 4, 1957 [June 20, 1956], No. 17789/57. Class 83 (4). In consumable electrode arc welding in which powdered magnetic coating material 14, Fig. 1, clings to the electrode 10 as it reaches the arc, the coating material 14 is fed to the electrode 10 through a conductive tube 13 spaced from and surrounding the contact and guide tube 12 for the electrode 10 and the welding current is passed through the conductor tube 13 to its end adjacent the arc which end is connected by symmetrical connections 15 to the contact tube 12. The arrangement prevents magnetic damming of the coating material. The welding current is connected between the upper end of the conductive tube 20 and the work 11 and passes through a disc 15 and an extension 17 to the contact tube 12. The powder passes through slots 18 in the extension 17 and an aperture 16 in the disc 15. The tubes 12, 13, the extension 17 and the disc 15 are formed of conductive metal, e.g. copper, and are silver soldered together. The tubes 12, 13 may be insulated from the powder. In a modification, Fig. 3, the coating material is carried by shielding gas through the conductive tube 31 and slots 41 in the disc to the gas nozzle 32 where the material adheres to the electrode 40. Specification 608,270 is referred to.
Patent GB-516170-A (GB)
Title: Improvements in or relating to supports for electric lamps and other electric fittings
IPC: F21V21/26
Filed: 1938-06-17
Abstract: 516,170. Supports for electric lamps &c. COOPER, H. C. June 17, 1938, No. 17890/39. Divided out of 516,121. [Class 65 (ii)] A support for an electric lamp &c. comprises a tube 10 rotatable in a socket member 15, the tube and socket being provided with ball races 13, 16, housing one or more balls 20, which may be inserted through a hole 17 in the socket. A stop 14 may be formed in the race 13 to engage the ball and limit the rotation of the tube 10. In another form, the tube is retained in the socket by a pin engaging a groove in the tube, and the stops for limiting rotation are pins mounted in the two races.
Patent GB-1346323-A (GB)
Title: Process for producing semiconductor nitride films
IPC: H01L23/29
Filed: 1971-05-28
Abstract: 1346323 Nitride films NORTH AMERICAN ROCKWELL CORP 28 May 1971 [22 June 1970] 17931/71 Heading C1A [Also in Division C7] Monocrystalline films or nitrides of one or more of Al, Ga, B and In are formed on a monocrystalline substrate by mixing or reacting an alkyl derivative or the or each of said element(s) with ammonia and pyrolysing the resulting mixture or reaction product at the substrate. The NH 3  is preferably used in excess of the stoichiometric amount required and the process may be effected at sub-atmospheric pressure. A carrier gas, e.g. He, N 2 , Ar, or H 2 ; may be used in the mixing step and to transport the mixture or reaction product to the substrate. The latter, which may be rhombohedral, hexagonal or cubic crystals, is preferably one of the monocrystalline insulators, sapphire, beryllium oxide and spinel, or alternatively a monocrystalline nitride, SiC or Si. Multilayers of nitride semi-conductor films may be produced in this way. Examples describe the deposition of films of A1N on α-Al 2 O 3  (at 1200-1300C.), A1N on Si, A1N on SiC, GaN on α-Al 2 O 3  (at 900-975 C.), GaN on SiC and GaN on spinel. Other combinations specified are InN, BN and ternary nitrides on various substrates, AN on beryllium oxide, A1N on A1N, GaN on GaN and GaN on A1N.
Patent GB-697463-A (GB)
Title: Method of treating undrawn fibre or filament waste
IPC: B65H54/76
Filed: 1950-07-19
Abstract: <PICT:0697463/IV (a)/1> Undrawn polymeric fibre waste, i.e. material which has become waste before reaching the drawing or elongating process normally carried out on polymeric filaments after spinning, is treated by continuously feeding the undrawn fibres from masses thereof, combing the fibres, e.g. by gilling, into substantially mutually parallel disposition, drawing the combed fibres by means of drawing rollers so as to elongate the fibres, and collecting the drawn mass as a sliver or the like for subsequent working into yarns. As shown, tangled masses of undrawn nylon or other polymeric waste fibres are placed on an apron 12 and fed between fluted pressure rollers 10, 14 to a gill mechanism 17, and thence through drawing rollers 21, 22, the lower of which is provided with an endless apron 26, a funnel 28 and calender rollers 29, 30 to a container 34.  To provide continuity of movement, a pre-formed sliver of the same material is fed along with the waste fibre.  The gill fallers move forward at a greater speed than the surface speed of rollers 10, 14, so as to comb and parallelize the fibres.  The surface speed of rollers 21, 22 is greater than that of rollers 10, 14, e.g. in the ratio of three or more to one, whereby the fibres are drawn and elongated.  The resultant sliver may be passed through the apparatus again, the process being repeated until the fibre is elongated to its maximum length without breaking.
Patent GB-1262687-A (GB)
Title: Improvements in or relating to apparatus for generating non-uniform motion
Inventor: JURNY JOSEF
IPC: B41F33/00
Filed: 1969-04-09
Abstract: 1,262,687. Feeding sheets. ADAMOVSKE STROJIRNY NARODNI PODNIK. 9 April, 1969 [9 April, 1968], No. 18146/69. Heading B8R. [Also in Division F2] Sheets 30, Fig. -l,-are-fed by grippers 31, Figs. 1 and 2, fixed to a shaft 2, to grippers 33 - on the-impression cylinder of.a printing-machine, the grippers 31 engaging the sheets while stationary and having an accelerating and then decelerating motion. The shaft 1 of the impression-cylinder-carries indented segments 5, 6, respectively, carrying a control cam 7 and a guiding cam 10. The shaft 2 carries two indented segments 13, 14 for engagement respectively with the segments 5, 6. The segment 14 carries guiding rollers 22, 26 running on the cam 10, and a pivoted two-armed lever 15 carrying a supporting roller 24 for engagement with the cam 10 and a roller 18 for engagement with the cam 7, being pressed against the cams by a compression spring 28 acting between the segment 14 and the lever 15. Acceleration of the shaft 2 and grippers 31 is produced by the cam 10 until the segments 6, 14 engage and produce a steady speed, during which the sheet is transferred to the grippers 33. The 'cam 10 then produces a further acceleration until the segments 5, 13 engage to maintain a higher speed. Deceleration to rest is then carried by the cams 7 and 10.
Patent GB-314985-A (GB)
Title: Improvements in devices for heating the air supplied to carburetters of internal combustion engines
IPC: F02M1/00
Filed: 1929-06-13
Abstract: 314,985. Barbarou, M. J-B. July 6, 1928, [Convention date]. Vaporizers, external.-The air-admission conduit 7 to a carburettor 8 is traversed by an exhaust pipe 9 provided with inner longitudinal, and outer transverse, heat-conducting fins. 10. The pipe 9 is open to the atmosphere at the outer end and is supplied with exhaust gases through a pipe 5 connected to a pipe 3 branched from the exhaust pipe 2. A plate 12 provided with a restricted orifice is secured at the junction of the pipes 3, 5, and a throttle valve is mounted in the pipe 5.
Patent GB-1169952-A (GB)
Title: A Tufting device for manufacturing Carpets, Rugs and the like
IPC: D04H11/00
Filed: 1966-10-20
Abstract: 1,169,952. Yarn package carriers. G. TIGGES. 30 Oct., 1967 [10 Nov., 1966; 6 Sept., 1967], No. 49237/67. Heading B8M. A yarn package carrier compressible axially and having a cylindrical or frusto-conical surface has disposed between end rings 1, 2 support elements 3 which are flexible webs extending for at least some of their length at an angle to the carrier axis, are rigidly secured to the rings 1, 2 and are distributed uniformly over the carrier periphery. One or more intermediate rings 4 may be disposed intermediate the end rings, and be interconnected by the webs. Various configurations of webs are disclosed, e.g. ring-shaped, S-shaped, V-shaped and U-shaped.
Patent GB-627480-A (GB)
Title: Improvements in and relating to arc extinguishing apparatus for electric current interrupters
IPC: H01H85/42
Filed: 1945-07-18
Abstract: 627,480. Cut-outs. BRITISH THOMSONHOUSTON CO., Ltd. July 18, 1945, No. 18371. Convention date, July 18, 1944. [Class 38 (i)] [Also in Groups XXXV and XXXVII] An arc-extinguishing chamber 20 comprises gas - evolving expulsion tubes 13,14 enclosing arc-runners 17, and having aligned slots forming an arc-extinguishing passageway 16, which is itself lined with gas-evolving material. A fusible element 21 within the passageway 16 extends through openings 23, 24 in the tubes 13, 14 and is connected to line terminals 3, 4. The tubes 13, 14 are preferably surrounded by slotted tubes 18 of magnetic material, so as to increase their bursting-strength and accelerate the upward movement of the arc. Other forms of arc-extinguishing chamber having divergent expulsion tubes and convergent passageways are also described. Applications to circuit. breakers, Figs. 1, 2 (not shown) (see Group XXXVII) and lightning arresters, Fig. 5 (not shown) (see Group XXXV) are also described.
Patent GB-274646-A (GB)
Title: Improvements in and relating to apparatus for training machinegun and other gunners in aiming and firing at moving targets and from moving platforms
IPC: F41G3/26
Filed: 1926-07-23
Abstract: 274,646. Brookes, D. S. July 23, 1926. Range-finders. - Relates to methods of teaching shooting at aeroplanes, or other moving targets, in which a photograph, or series of photographs, of the target is taken on a plate or kinematograph film, and consists in a device for measuring the photographic image and thereby determining the range at which the photograph was taken. The device comprises a transparent or translucent screen 1 marked with ladder like scales comprising converging lines 2 and parallel transverse lines 7 corresponding in length with the overall span length of the image taken at different ranges. Inner converging lines 12 may mark the side view length or there may be a series of converging lines marking the span and side view lengths of the image of the target taken at different angles. Different scales, as shown, are provided for different types of aeroplanes. The screen is preferably mounted so that light is transmitted through it and the film is placed thereon and moved until the image fills the space between the appropriate converging lines. The deflection of the image from the cross lines marked on the film may be measured by a scale comprising a series of concentric circles measuring the distance from a centre 13.
Patent GB-1469337-A (GB)
Title: Educational kit for teaching about electrical switching and relay operation
IPC: G09B7/06
Filed: 1974-04-26
Abstract: 1469337 Educational appliances XEROX CORP 26 April 1974 [27 April 1973] 18447/74 Heading G5G Educational apparatus comprises a board 10 furnished with a plurality of jack sockets 11 identified by graphic indicia 13 relating to electrical symbols; an equal number of jack sockets 12 associated with graphic indicia representing identification of said symbols, each socket 11 being electrically connected to that socket 12 which defines the correct identification of the relative symbol; probes 14 and 15 for co-operation with the respective sockets 11 and 12 for matching, by a student, a symbol with an identification; a check switch 16 and lamps 17, 18 for indicating whether or not a correct match has been made; further sockets 30 associated with graphic indicia such as 29 and connected to corresponding electrical components such as relays 33, a lamp socket 35 and an electromagnet 36; and audio-visual instruction means, e.g. an audio tape with associated slides or film strips and worksheets, presenting programmed information relating to electrical switching and relay operation for directing a student's use of the board in response to questions and instructions contained in the programme, this use including the identification of symbols and the setting up of relay circuits for testing.
Patent GB-898827-A (GB)
Title: Improvements in and relating to feeding devices for paper webs
Inventor: TONKS GEORGE HARRY
IPC: B41L5/06
Filed: 1959-05-30
Abstract: 898,827. Typewriter etc.; feeding webs. GRAPHIC TECHNOLOGY Ltd. May 27, 1960 [May 30, 1959], No. 18486/59. Classes 100(1) and 100(4) A tractor pin feed unit for feeding webs in typewriters or like machines comprises an endless chain of similar links 13 made of thin wire bent to a generally W shape to form side arms 14 and a transverse portion 16, bent to define an open-mouthed slot 18. Feed pins 19 have flanges 20 defining a groove 21 which is sprung in to engage the closed end 17 of the groove 18. Mounting plates 26 for the unit are adjustably fixed along a rod 10 and are held in position thereon by a coil spring 35. Turning a knob 39 releases the grip of the spring 35 and allows the unit to be adjusted for a different width paper web. A finger plate 46 for holding the paper webs in engagement with the pins is pivotally mounted on a pin 49 passing through lugs 43, 44 of the mounting plate 26. A spring 51 holds a bracket 47 in contact with a flange 52 of the lug 44 and thus correctly spaced from the chain. Depression of the plate 46 against the spring 51 disengages the bracket 47 from the flange 52 and allows the plate to be swung to an inoperative position. The driving sprocket for the chain is provided with arcuate shaped teeth to assist stripping the paper webs off the pins.
Patent GB-984259-A (GB)
Title: Annular spring of aluminium alloy
Inventor: PETER OSKAR ERICH
IPC: F16F3/06
Filed: 1963-05-10
Abstract: 984,259. Metal springs. O. E. PETER. May 10, 1963, No. 18494/63. Heading F2S. An annular spring comprises closed inner and outer rings 1, 1a, and 2 consisting of aluminium alloy the conical contact surfaces of which are covered with layers 3, 3a and 3b of hardwearing, low-friction, high strength steel. The layers 3, 3a, 3b may be replaceable stamped pieces having prismatic projections 3c for positive connection to the rings 1, 1a, 2 and each piece may consist of several parts to allow the rings to expand uniformly. The indentations provided by the projections 3c also serve as small lubricating chambers.
Patent GB-734421-A (GB)
Title: An improved toy, puzzle, educational, constructional, or decorative device
IPC: A63F9/10
Filed: 1952-07-23
Abstract: 734,421. Puzzles; pictures; ornamenting; educational devices. SHELDON, A. July 20, 1953 [July 23, 1952], No. 18644/52. Classes 11, 93, 132(3) and 146(2). A toy, puzzle, educational, constructional or decorative device comprises a set of shaped wood veneer pieces for forming a picture or design, the colouring and outline of the pieces conforming to the features represented in the picture or design. Fig. 1 shows a part of a completed puzzle formed of pieces such as those shown at A-F of which B, C, F may be replaced by window and door parts Fig. 5. The completed puzzle may be pasted to a sheet of paper for semi-permanency, and to produce a permanent pictorial panel or wall picture the other side may be glued to or inlaid into a backboard of the same size as or greater dimensions than the completed puzzle which may then be smoothed with abrasive paper and polished. Such a panel may be incorporated in fire-screens, trays, or doors. Specifications 5622/07, [Class 20], 438,460 and 571,339 are referred to.
Patent GB-1018691-A (GB)
IPC: E05B65/16
Filed: 1964-05-05
Abstract: 1,018,691. Door fastenings; clamps. TRUEHAUF CORPORATION. May 5, 1964 [June 18, 1963], No. 18667/64. Headings E2A and E2B. A door fastening 10 for a vehicle having a door hingedly supported in a door frame comprises a keeper element 66 adapted to be rigidly secured to the door frame and a pivotable tongue element 44, which is mounted in a frame 30 adapted to be rigidly secured to the door and which is engageable with the keeper element 66, wherein the frame 30 incorporates a shroud 100 enclosing a recess having outwardly divergent walls 102, 104 which, in the closed position, engage over complementary convergent surfaces 106, 108 of the keeper element with a wedging action, so as to resist rocking forces tending to move the door relative to the door frame in a direction parallel to the hinge axis of the door. In the embodiment shown the tongue element 44 is pivoted at one end in the shroud 100, and its other end 45 is welded to a connecting rod 22 rotatably mounted in the frame 30, and connected to a second fastening at the upper edge of the door. The tongue element 44 has a tongue portion 60, Fig. 3, having an arcuate face 78 and tapered faces 62, 64 which engage corresponding arcuate and tapered faces 74 and 70, 72 respectively on the keeper element 66.