baber/WOPTO huggingface dataset:
Patent GB-384011-A (GB)
Title: Improvements in tunnel kilns
IPC: F27B9/30
Filed: 1931-09-23
Abstract: 384,011. Tunnel kilns. WOODALLDUCKHAM (1920), Ltd. and TARRANT, A. N., 136, Victoria Street, London. Sept. 23, 1931, No. 26574. [Classes 51 (i) and 51 (ii).] Dampers controlling longitudinal flues in the travelling floor of a tunnel kiln are automatically opened and closed at desired points in the travel of the floor. As shown, the vertically-sliding damper D is raised to close the flue C by engagement of an abutment G on the floor with a bell crank F, and is retained in the raised position by a weighted catch H, which can be tripped by a fixed abutment I at any desired point, to allow the damper to close. The damper rod D<1> is made in two parts with an interposed buffer spring D<0>. Alternatively, the dampers may be raised to and maintained in the closed position by fixed ramps.
Patent GB-730380-A (GB)
Title: Improvements in or relating to the manufacture of building slabs from fly-ash
Inventor: RULE TOM EDGAR
IPC: B28B3/08
Filed: 1951-11-13
Abstract: 730,380. Moulding building blocks. REFCON STRUCTURES, Ltd. Nov. 12, 1952 [Nov. 13, 1951], No. 26577/51. Addition to 613,943. Class 87 (2). In a method of moulding a composition comprising "fly-ash", cement and clay as described in the parent Specification, the material is simultaneously pressed by rams 18, 38 and the, pressed block is ejected by a further upward movement of the ram 18. In operation, the mould is filled with the material from a shoot 62, and the ram 38, which is normally held in a raised position by springs 39, is moved down until latches 41 engage hooks 43 on rods 44. A hand lever 29 is then moved to raise the ram 18 through a toggle linkage 23, 24 and pull the ram 38 downwardly. At the end of the pressing stroke, cams 45 cause bars 47 to release the hooks, thus allowing the ram 38 to rise. A motor 56 is then started, by means of a push button to rotate a shaft 49 which raises the ram 18 through toggles 31, 32 and lever 51 to eject the block. After ejection, a limit switch is operated to stop the motor. The ram is then lowered by pressing another button which starts the motor in the direction reverse. When the ram reaches its lower position, the motor is stopped by a further limit switch.
Patent GB-173046-A (GB)
Title: Improvements in apparatus for drying tea leaf and the like
IPC: F26B11/04
Filed: 1920-09-17
Abstract: 173,046. Sutton, G. W. Sept. 17, 1920. Resistance ovens. -Apparatus for drying tea &c., comprises a rotary cylinder 4 open at the ends and mounted upon a frame, and having attached to its outer surfaces electric heating-elements 6 connected to metal bands having shields 8. The currents to the heating-elements are controlled from switches 7 upon the frame and supplied through spring wipers secured to the frame and contacting with the bands. The cylinder is supplied with hot air by a fan 10 which forces cold air through the electric heater 11 into a central oscillating air duct 12 having a fiat perforated upper surface 20 provided with longitudinal plates 18 which may be heated by electric means. The tea is carried by a conveyer 22 on to a vibrating shoot 23 and passed into the cylinder wherein it is carried round by the ribs 21 and continuously dropped on to the plates 18 and finally discharged through the apertures 24. The air duct and sheet are vibrated by connecting-rods attached to the duct and shoot, and to a common eccentric 25 which is mounted upon the driving-shaft of the cylinder.
Patent GB-400404-A (GB)
Title: Improvements in or relating to electrical filters
IPC: H03C1/52
Filed: 1932-09-26
Abstract: 400,404. Impedance networks. MARCONI'S WIRELESS TELEGRAPH CO., Ltd., Marconi House, Strand, London.- (Assignees of Hansell, C. W. ; Port Jefferson, Long Island, New York, U.S.A.) Sept. 26, 1932, No. 26686. Convention date, Sept. 24, 1931. [Class 40 (iii).] In a band-pass filter, particularly suitable for use in side-band-suppression systems, Fig. 1 (not shown) two or more unequally tuned piezo-electric resonant circuits are fed with currents in opposite phase to prevent antiresonance due to interaction of the crystals. Thus with an input coil 56 and output coil 50, Fig. 2, oscillations are fed in opposite phase to two piezo-electric resonators 18, 20, whose resonance curves overlap. The resulting pass band may be extended by the addition of two more resonators, Fig. 3 (not shown), shunted upon the resonators 18, 20, in such order that crystals with non-adjacent frequencies are paired together. The crystals may be shunted with adjustable trimming-condensers for neutralizing capacitative unbalance between the crystals. A crystal filter, according to the invention, and having an (output, frequency) characteristic d may be shunted upon an ordinary filter having a characteristic d to yield a combined characteristic e ; or both ends of the characteristic may be steepened by the use of two crystal filters. The Specification as open to inspection under Sect. 91 comprises also modifications in which the crystals are replaced by ordinary resonators, Fig. 4 (Cancelled, not shown), or by resonant lengths of transmission line, Fig. 8 (Cancelled, not shown) ; a number of four-electrode crystals are connected in parallel, the output pairs of electrodes being reversed as compared with the input pairs, Fig. 5 (Cancelled, not shown) ; magnetostrictive oscillations are similarly arranged, Fig. 6 (Cancelled, not shown) ; an ordinary filter is shunted by magnetostrictive oscillators with graded couplings Fig. 7A (Cancelled, not shown). This subjectmatter does not appear in the Specification as accepted.
Patent GB-1255410-A (GB)
Title: Improvements relating to workpiece holders
IPC: H01L21/683
Filed: 1969-05-27
Abstract: 1,255,410. Vacuum work-holders. INTERNATIONAL BUSINESS MACHINES CORP. 27 May, 1969 [17 June, 1968], No. 26706/69. Heading B3D. A holder for a workpiece, such as a semiconductor wafer 78, comprises a pick-up face 14, a first area 30 on the face for subjecting a portion of the workpiece to vacuum, a second area 28 on the face surrounding the first area and spaced from the workpiece, and means for supplying pressurized air to the second area. The pick-up face 14 is at the smaller end of a frustoconical housing 12, the larger end being closed by a plug 26 to form a cavity 22. The first area 30 is formed with an annular recess 32 and cross connections 34 which are connected by bores 38, 40 to a pipe 46 which can be attached to a vacuum source. The second area consists of a recessed portion 28 formed with annular grooves 52, 54 connected by passages 56, 58 to the cavity 22 which is supplied with air under pressure from a pipe 62. The air escaping at the grooves prevents contamination of the surface of the workpiece held by vacuum on the first area 30.
Patent GB-190835-A (GB)
Title: Improvement relating to agricultural tractors and the like
IPC: B62D49/06
Filed: 1921-10-10
Abstract: 190,835. Mason & Co., Ltd., C. H., and Whiting, S. Oct. 10, 1921. Couplings for road vehicles. - In agricultural tractors in which the draw bar may be adjusted transversely by a pivoted operating lever, the lever a is pivoted at c on a transverse angle-bar d secured to side brackets on the tractor frame and its lower end is connected by a link m to the draw-bar p.
Patent GB-279631-A (GB)
Title: Improvement in and relating to loud speaker horn
IPC: H04R1/30
Filed: 1926-10-26
Abstract: 279,631. Marks, E. C. R., (Br³ning & Sohn, Akt.-Ges., J.). - Oct. 26, 1926. Sound magnifying and directing appliances. - A loud-speaker horn of plywood comprises two layers of superposed wooden rings a, b which are glued together in such a manner that the joints of the upper layer are staggered with respect to the joints of the lower laver. The flared end of the horn may be formed by longitudinal plabes d superposed on rings c.
Patent GB-1472983-A (GB)
Title: Engine driven electric generator
IPC: H02K21/48
Filed: 1974-06-17
Abstract: 1472983 Permanent magnet generators; electric couplings BRIGGS & STRATTON CORP 17 June 1974 [8 Nov 1973] 26774/74 Headings H2A and H2E A generator comprises a permanent magnet rotor driven by an engine shaft 6 and a stator having two windings, one, 12, supplying D.C., e.g. for battery charging, and the other, 13, supplying A.C., e.g. for operating headlamps. The generator and engine are intended for use in a machine such as a motorized mower, the engine providing the motive power for the machine. One end of each winding is electrically connected to the stator core as at 15, 16. The other ends of the windings are taken out through leads 17, 18 to connectors mounted on a support 21. The A.C. output is taken to output lead 23 through a conventional male/female connector. The A.C. output from winding 12 is fed to lead 17 and rectified by a diode 24 housed in socket 19. One diode lead 30 is connected to lead 17 through a crimp connector 31, as shown, and the diode is urged to the right (as seen in Fig. 3) by a bias spring 37 to ensure that a contact 35 crimped to the other diode lead 29 engages a contact 33 which is connected to output lead 34 and mounted inside a closure member 32 secured to socket 19 by a bayonet type connection. In a modified connector, Fig. 4 (not shown), the crimp connector 31 is omitted, diode lead 30 and lead 17 both have contacts such as 35 shown and the bias spring acts on the contact on lead 17.
Patent GB-189929-A (GB)
Title: Improved manufacture of belly-shaped articles
IPC: B21D25/02
Filed: 1921-10-10
Abstract: 189,929. Neubauer, C. Oct. 10, 1921. Die-rolling.-Bellied sheet-metal articles, such as boat and motor car body sections, are produced by die-rolling. Hard wood may be employed for the dies. Sheet-metal is held on a mould e bv a press-frame g the pressure of which is limited so as to allow the metal to be pulled out as it is profiled by a segmental die a which is so shaped that its developed surface is a pattern of the form to be imparted to the sheet. Either the mould e or the die may be traversed, the rotary movement of the die being effected either by friction or by positive gearing. The mould may be shaped as the counterpart of the developed surface of the die, or may be replaced by a second segmental die. The mould may be gapped as at f so that only one side of the sheet is in contact with a profiling surface. The dies may comprise separate elements spaced on a common axis.
Patent GB-649216-A (GB)
Title: Improved spray apparatus for damping the cylinders of offset printing machines
IPC: B41F7/30
Filed: 1948-10-15
Abstract: 649,216. Printing-machines. RAS, M. Oct. 15, 1948, No. 26871. Convention date, Oct. 17, 1947. [Class 100 (ii)] A spray apparatus for damping the cylinders of offset printing machines comprises an oblong box 4 having a longitudinal slot 7, means for producing an air current through the slot which is uniformly distributed along it, and means for atomizing water and distributing it uniformly in the air current to form a spray jet of mist through the slot on to a part of the offset machine required to be damped. The means for producing the air current comprises a compressed-air line, a control valve, and an inlet 10, the air passing from a chamber 12 through a baffle and filter 11 of wire gauze with or without a cloth cover into the atomizing chamber 13. Water is supplied through a second control valve and a distributing pipe 16 through a plurality of apertures or nozzles 17 in fine smooth jets impinging on a baffle 18 to be atomized. Surplus water is returned to the pump through a drain 19. The amount of water in the jet of mist, and the velocity of the air current, are regulated by the respective control valves. Baffles may be provided in the slot 7. The air-flow may also be controlled by regulating the speed of the air-blower.
Patent GB-303577-A (GB)
Title: Improvements relating to machines for harvesting beet and like root crops
IPC: A01D23/04
Filed: 1927-10-11
Abstract: 303,577. Morton, H. G., and Standen, F. A. Oct. 11, 1927. Conveyers with spikes for engaging articles.- Beetroots or like root crops are placed separately in receivers 5 carried by chains 2 passing round chain wheels on shafts 3, 4, each receiver being formed with an inclined bottom provided with pins 5<a> upon which the root is impaled. The back 5b of each receiver is cut away at 5<c> and 5<d> to take a presser foot F during a topping operation and a roller 40 for ejecting topped beets respectively. The leaves of the roots are supported on an auxiliary conveyer chain 41 having a guide 42. The root is engaged by the roller 40 and pushed off the spikes.
Patent GB-750350-A (GB)
Title: Improved method and device for doubling textile yarns
IPC: D02G3/28
Filed: 1953-10-01
Abstract: 750,350. Yarn twisting and doubling apparatus. NAAMLOOZE VENNOOTSCHAP ONDERZOEKINGSINSTITUUT RESEARCH. Oct. 1, 1953 [Nov. 21, 1952], No. 26982/53. Class 120 (2). A method of doubling yarns in which a yarn is drawn from a package, tensioned and passed through a rotating guide and then allowed to balloon around a second package from which yarn is drawn and tensioned and then doubled with the yarn from the first package, is characterised in that the yarn from the first package passes through a radial bore of a yarn storage disc after passing through the rotating guide, balloons freely around the second package and is doubled with the second yarn while still ballooning. In the arrangement shown, yarn 4 is passed from a spool 2 direct to the point of doubling 5 via a guide 8, a tensioning device 9 and a further guide 10. The second yarn 3 coming from spool 1 is passed via a guide 11, tensioning device 12 and a further guide 13 through a false twist device in the form of a hollow spindle or rotor 14, rotated by the driving pulley 15, around the storage disc 16 and thence in the form of a balloon to the joining point 5 where the two yarns become twisted together. The spool 2 is mounted on a stator 19 held stationary in known manner on the spindle 14. In a second embodiment, the spindle 14 is replaced by a rotating double pulley device to give the false twist to the thread 3. Specification 679,933 is referred to.
Patent GB-697579-A (GB)
Title: Cutting machine for the production of granular material
Inventor: COSTE PIERRE
IPC: B26D1/38
Filed: 1951-11-17
Abstract: 697,579. Cutting thermoplastic sheets into granules. COSTE ET CHEVALEYRE. Nov. 17, 1951. No. 27030/51. Class 87 (ii). [Also in Group II]. A machine for granulating thermoplastic substances comprises circular rotary cutters 3, 3' for cutting a band 12 of the material into strips and rotating blades 10 for cutting the strips into granules. The rotary cutters consist of two sets of intermeshing discs 3 spaced upon shafts 2, 2' rotating in opposite directions. Rotary cutter 9 carries a number of blades 10 and is geared to the shafts 2, 2'. The band 12 is guided by spaced plates 5, 5' which are slotted for passage of the discs 3.
Patent GB-1475955-A (GB)
Title: Loading pallet and a method for the manufacture thereof
IPC: B65D19/40
Filed: 1975-06-26
Abstract: The device consists of a panel (1) on whose underside spacers (2) are arranged. The latter are attached to the panel by means of an annular holder (3) of angled cross-section. The collar of the annular holder has a row of anchorages which engage in the spacer, and the flange of the annular holder has another row of anchorages which engage in the panel, the flange being provided with slots distributed over its outer circumference. This device can be used, for example, as a disposable pallet. <IMAGE>
Patent GB-828026-A (GB)
Title: Method of forming display screens for cathode ray tubes
IPC: H01J9/227
Filed: 1957-08-28
Abstract: 828,026. Luminescent screens. SYLVANIA ELECTRIC PRODUCTS Inc. Aug. 28, 1957 [Aug. 28, 1956], No. 27152/57. Class 39(1). An image display screen is formed on the viewing panel of a cathode ray tube by coating the panel with light-sensitive alcohol, rinsing it with solvent for the alcohol, depositing a layer of light-sensitive alcohol and a phosphor on the panel, masking portions of the layer, exposing the unmasked portion of the layer to light and removing the unexposed portion of the layer with a solvent. The sensitive layer comprises a polyvinyl alcohol and ammonium dichromate in solution in ethyl alcohol and the preliminary coating preferably comprises polyvinyl alcohol in aqueous solution containing between 0À1 and 0À8% by weight of the alcohol. Specification 804,958 is referred to. Reference has been directed by the Comptroller to Specification 713,908.
Patent GB-1195010-A (GB)
Title: New 5-Nitro-4-Thiazolin-2-Ylideneurea Compounds and methods for their production
IPC: C07D277/58
Filed: 1969-05-29
Abstract: 1,195,010. 5 - Nitro - 4 - thiazolin - 2 - ylideneurea derivatives. PARKE DAVIS & CO. 29 May, 1969 [31 May, 1968; 10 March, 1969], No. 27231/69. Heading C2C. The invention comprises novel 5-nitro-4- thiazolin-2-ylideneurea derivatives of the formula where R 1  is C 1-7  alkyl, a 2-alkenyl group having 3 or 4 carbon atoms, a #-chloro-2-alkenyl group having 3 or 4 carbon atoms, a #,#-dichloro-2- alkenyl group having 3 or 4 carbon atoms, C 1-4  hydroxyalkyl, C 2-5  alkoxyalkyl, C 2-5  alkylthioalkyl, benzyl, mono-substituted benzyl, in which the substituent is CH 3 , OCH 3 , halogen, CN, or NO 2 , dimethylbenzyl, dichlorobenzyl, aralkyl, aryloxyalkyl, alkanoyloxyalkyl, cycloalkylalkyl, or propynyl; R 2  is H, C 1-4  alkyl, cycloalkyl, chloroethyl, allyl or propynyl; and R 3  is H, CH 3  or CH 3 CH 2 ; or R 2  and R 3  are combined and together with the nitrogen atom to which they are attached represent a heterocyclic amino group. The above compounds are prepared by one of the following methods:- (a) Nitrating the corresponding 4-thiazolin-2- ylideneurea or acid addition salt thereof, which is obtained by either reacting the appropriate 3 - (R 1 ) - 2 - imino - 4 - thiazoline acid addition salt with an isocyanate of the formula R 3 NCO or with a carbamoyl chloride of the formula R 2 (R 4 )N.CO.CP, where R 4  is CH 3 - or CH 3 CH 2 -. (b) Reacting a 1-(R 2 )-3-(5-nitro-2-thiazolyl)- urea with an organic halide of the formula R 1 X, where X is Cl, Br or I, in the presence of a base, to give compounds of the above general formula in which R 3  is a hydrogen. (c) Reacting a 3-(hydroxyalkyl)-5-nitro-4- thiazolin-2-yliderieurea with an alkanoic acid or reactive derivative thereof to give compounds of the above general formula in which R 1  is an alkanoyloxyalkyl group. N - (3 - Ethyl - 4 - thiazolin - 2 - ylidene) - 4 - morpholine carboxamide and N - (3 - ethyl - 4 - thiazolin - 2 - ylidene) - 1 - pyrrolidine carboxamide are made by reacting 3-ethyl-4-thiazoline- #<SP>2</SP> <SP>N</SP>-carbamic acid, phenyl ester, resulting from the treatment of 3-ethyl-2-iminothiazoline with phenylchloroformate, with morpholine and pyrrolidine respectively. 3 - Ethyl - 2 - imino - 4 - thiazoline hydroiodide and 3 - butyl - 2 - imino - 4 - thiazoline hydrobromide are obtained by refluxing 2-aminothiazole with ethyl iodide and n-butyl bromide respectively. 1 - Allyl - (and 1 - tert.-butyl and 1 - cyclohexyl) - 3 - (5 - nitro - 2 - thiazolyl) ureas are obtained by reacting 2-amino-5-nitrothiazole with allyl tert.-butyl and cyclohexyl isocyanates respectively. Pharmaceutical compositions with schistosomacidal and trichomonacidal activity, contain the above novel compounds and pharmaceutically acceptable carriers therefor.
Patent GB-1240116-A (GB)
Title: Improvements in or relating to the manufacture of synthetic elastomers
Inventor: MOHAJER ALI AKBAR
IPC: C08G18/10
Filed: 1968-06-07
Abstract: 1,240,116. Elastomeric filaments. IMPERIAL CHEMICAL INDUSTRIES Ltd. 29 May, 1969 [7 June, 1968], No. 27264/68. Heading C3R. Elastomeric filaments having an elastic recovery from 100% extension of at least 95% and a work recovery of at least 75 % after annealing are formed from a polyetherurethane having an inherent viscosity of 0.5 to 1.5 obtained by the interaction of (1) a diol which is a hydroxylterminated linear polyether or copolyether having a number average molecular weight of 1000 to 6000, (2) from 0À1 to 20 mole, per mole of (1), of an aliphatic, cycloaliphatic or arylaliphatic diol and (3) from 96 to 106 moles per 100 moles total of the aforesaid diols of paraxylylene diisocyanate or trans,trans,4,4<SP>1</SP>-diisocyanato-dicyclohexylmethane. Catalysts may be added to the reaction mixture and the reaction may be carried out in solution. In a typical example a hydroxy-terminated poly- (tetramethylene oxide) glycol is mixed with 4,4<SP>1</SP>- diisooyanato - dicyclohexylmethane (transtrans isomer) and after heating and cooling pbis - (# - hydroxyethoxy)-benzene is added. The resulting polyurethane is melt spun into a filament yarn.
Patent GB-989026-A (GB)
Title: Improvements in or relating to transmitter-load coupling arrangements
Inventor: SOSIN BOLESLAW MARIAN
IPC: H03H11/34
Filed: 1962-07-17
Abstract: 989,026. R.F. couplings. MARCONI CO. Ltd. April 22, 1963 [July 17, 1962], No. 27331/62. Heading H4A. Radio transmitters V, S feed a common aerial A via four-port hybrids VH, SH, the inputs to each of which are arranged to be in phase quadrature (#, #+90 degrees). The hybrids may be of two kinds, as described in the Specification. The transmitters may be the sound and vision transmitter, or the luminance and colour transmitters, of a television station. There may be more than two transmitters.
Patent GB-467395-A (GB)
Title: Improvements in or relating to process and apparatus for producing electrodes for electric arc welding
IPC: B23K35/40
Filed: 1936-10-09
Abstract: 467,395. Coating welding electrodes by extrusion-machines. LENOIR, J. Oct. 9, 1936, No. 27495. Convention date, Oct. 10, 1935. [Class 87 (ii)] A number of naked electrode cores 11 mounted in holes 10 in a member 9 is raised, and the cores 11 engage rods 6 secured to a ring 8. The ring is thereby raised and cone-ended sleeves 4 are moved by springs 7 to open communication between a pressure cylinder 1 for the plastic material and the coned openings 15 of the nozzles 3. Pressure is then applied by a piston 2 to the plastic material, and the member 9 is lowered slowly. When the coated electrodes are withdrawn, the weight of the ring 8 causes the rods 6 to pass through the nozzles, and the sleeves 4 to be lowered to cut-off the communication between the cylinder 1 and the nozzles. Pressure may be applied intermittently while the electrodes are being coated to leave uncovered portions.
Patent GB-481757-A (GB)
Title: Improvements in or relating to grading machines
IPC: B07B13/065
Filed: 1936-10-10
Abstract: 481,757. Separating solid materials. STRINGER, H. I. Oct. 10, 1936, No. 27540. [Class 117] A grading-machine comprises travelling belts spaced side-byside transverse to and at the delivery end of a conveyer on to which the material is fed, the material left on the belts being passed on to further travelling belts spaced side by side where another grading operation occurs. In the form shown, fruit leaving the endless belt 8 passes on to the belts 33, 34 undersized product falling to the shoot 48. The rest passes on to the diverging belts 49, 50 and shoots 70, 73 are provided to receive the products falling between the belts at the various stages along their lengths. The belts may have an approximately vee-section as shown in Fig. 4, and may run on supports 36, 37 which are adjustable to enable the spacing of the belts to be varied. Similar supports are provided for the belts 49, 50.
Patent GB-707780-A (GB)
Title: Improvements in or relating to cutting tools
IPC: B23B27/20
Filed: 1951-11-26
Abstract: A cutting-tool comprises a single diamond set in an alloy consisting of 76-83 per cent. copper and 17-24 per cent. tin.