baber/WOPTO huggingface dataset:
Patent GB-140698-A (GB)
Title: Improvements in ovens for kitchen ranges and like stoves
IPC: F24C15/00
Filed: 1919-09-05
Abstract: 140,698. Cockburn & Co., and Halley, W. S. Sept. 5, 1919. Ovens.-A kitchen-range or like oven 1 is supported in the front plate 4 by means of a flange 5 engaging the inner side of the lower edge 6 of the opening in the plate 4, and by flanges 2 on the sides and top entering recesses 3 in the outer side of the corresponding edges of the opening. The rear of the oven may be partly supported by a rest 7.
Patent GB-479760-A (GB)
Title: Improvements in or relating to television and like systems
IPC: H03K6/04
Filed: 1936-08-10
Abstract: 479,760. Valve generating circuits. BAIRD TELEVISION, Ltd., and JOHNSTONE, D. M. Aug. 10, 1936, No. 21970. [Class 40 (v)] The deflecting coils 2, Fig. 2, of a cathode-ray tube are connected in the cathode circuit of a valve 3 whose grid is fed with rectangular waveform potentials. This mode of connection reduces the valve impedance and improves the linearity of the saw-tooth waveform current in the coils 2. A further improvement may be obtained by applying to the grid of valve 3 a distorted saw-tooth waveform potential in addition to the rectangular waveform potential. This may be developed by applying rectangular waveform potentials to a resistance-inductance combination 10, 11, Fig. 3, the resulting waveform being limited by valve 12, phase reversed by valve 14 and if necessary limited again by the same valve and applied to valve 3, Fig. 2. Alternatively, the distorted saw-tooth waveform may be taken from the coils 2, Fig. 4, over condenser 17 and applied to the input of valve 3 over a limiting valve 16, the rectangular pulses being supplied over condenser 19.
Patent GB-1093328-A (GB)
Title: Apparatus for irradiating a prismatic workpiece
Inventor: LUDERUS FRANCOIS JACQUES DANIE
IPC: C23F1/08
Filed: 1966-05-18
Abstract: 1,093,328. Etching. INTERNATIONAL BUSINESS MACHINES CORPORATION. May 18,1966 [May 24, 1965], No. 21991/66. Heading B6J. [Also in Division G2] A print wheel 10 has various indicia formed on the flat top surface 13 of each of the teeth by a photographic process (see Division G2). After the photographic images have been developed, they are etched in the apparatus of Fig. 7. The wheel is held in a fixture 70, 71, 72 so that only the top surfaces are exposed. The etching liquid in the container 74 is drawn up through a tube 79 by blowing compressed air down a tube 77 and through a nozzle 78. The nozzles are arranged in a circle round the print wheel, one to each surface 13, so that a jet of etchant is directed on to each surface. The wheel 10 is indexed round stepwise by the mechanism 80.
Patent GB-1102416-A (GB)
Title: Improvements in and relating to tiles
Inventor: BATEMAN BRENDA LILIAN
IPC: B44C3/04
Filed: 1965-05-25
Abstract: 1,102,416. Moulding tiles. SMITH & NEPHEW PLASTICS Ltd. 23 Aug., 1966 [25 May, 1965], No. 22021/65. Heading B5A. Granules of polyethylene of various colours are arranged in a pattern on a walled tray and are then heated to fuse the granules together to form a patterned tile which is then cooled. The tray may be of metal and comprise a base sheet marked with a pattern and coated with a grain retaining adhesive and a separate frame to wall off a desired area thereof. Self contained designs can be incorporated in single tiles, or a single pattern can be obtained by the fitting together of a number of separate tiles.
Patent GB-201773-A (GB)
Title: Improvements in change speed mechanism
IPC: F16H3/24
Filed: 1922-08-14
Abstract: 201,773. Farley, J. Aug. 14, 1922. Facilitating changing speed. - To one of a toothed pair about to be intermeshed such as the pair 8, 9 there is attached a flexible ring 17 which engages the tops of the teeth of the other wheel prior to engagement, and so brings the speeds of these wheels to near equality. In the variablespeed gear shown, the gear 9 loose on the lay shaft 6 is meshed with the gear 8 fast on driven shaft 2, and subsequently brought into clutch engagement 30, 31 with its shaft to transmit power. There are two other similar pairs 10, 11 and 12, 13. For the direct drive, a gear 4 upon a sleeve 3 sliding on a square on driving-shaft 1 is adapted to effect a clutch engagement 21, 20 when the countershaft is at rest.
Patent GB-1195703-A (GB)
Title: Thermionic Valves
Inventor: BEHENNA JOSHUA JOHN
IPC: H01J21/18
Filed: 1967-05-12
Abstract: 1,195,703. Thermionic valves. STANDARD TELEPHONES & CABLES Ltd. 12 May, 1967, No. 22146/67. Heading H1D. In a thermionic valve in which electrons flowing between an elongated cathode or cathodes 1, Fig. 1, and a planar anode surface 2 pass between parallel non-magnetic control electrode surfaces 4 extending perpendicular to the anode plane, and which is constructed for use with a magnetic field H directed parallel to the surfaces of the control electrodes to minimize current interception by the latter, the length l/ 2  of each control electrode measured perpendicular to the anode plane, between its edge adjacent the anode plane and the cathode or cathodes, lies between 0À7 and 2 times the spacing 2a between adjacent control electrode surfaces measured at their edges adjacent the anode plane, whereby triodes exhibiting pentode-like characteristic and a very sharp anode current cut-off may be obtained. The edges of the control electrodes are rounded, as shown, to reduce field emission effects; grooves opposite the electrode edges may be provided in the anode surface for the same purpose, and the portions of the control electrodes adjacent a cathode may be thickened to increase their influence upon the anode current (Fig. 2, not shown). The grid-anode capacitance may be reduced by the provision of rod electrodes disposed, parallel to the cathodes, between each control electrode and the anode (Fig. 3, not shown), and held either at the mean of the peak potential between the anode and control electrodes, or at cathode potential. The plates 4 constituting the control electrodes may each be replaced by an array of electrode rods (Fig. 4, not shown), of which those adjacent the cathode may be of increased diameter. Fig. 6 shows a tube employing the arrangement of Fig. 1: the thoriated tungsten wire cathodes 20 are secured at their lower ends to a lower bridge-piece 28, which is itself supported by rods 29 from the grid ring 30 sealed to the glass envelope portion 31, and at their upper ends are resiliently supported from upper bridgepiece 28. The cathodes are connected in series by members 33, and provided with leads 34; connection may also be made to the centre point of the cathode series. The control electrode plates are supported between the cathode wires by rods 24, mounted on plates 25 (see also Fig. 5, not shown), such that their edges face the two broader sides of the rectangulat section anode 21, which constitutes part of the tube envelope and is provided with an anode ring 35 and a jacket 36 for the circulation of coolant. If, unlike the above arrangement, the anode plates are separate from one another, they may be of magnetic material. Fig. 8 shows an arrangement employing a single cathode 100 and anode 2, with a trough-shaped control electrode having opposed arms 40.
Patent GB-239367-A (GB)
Title: An improved cap bar for ring spinning frames
IPC: D01H1/02
Filed: 1924-09-20
Abstract: 239,367. Elliott, O., (Elliott, E.). Sept. 20, 1924. Roller heads.-A detachable plate B is secured to the cap bar A of ring spinning-frames to form the front of the bearing a for the back rollers so that it may be replaced when worn. The Provisional Specification describes a detachable part, T-shape in plan, adapted to be secured by screws in a recess in the top of the cap bar.
Patent GB-284952-A (GB)
Title: Improvements in or relating to signals applicable to road vehicles
IPC: B60Q1/34
Filed: 1927-08-24
Abstract: 284,952. Platou, K., and Lund, J. H. L'A. Aug. 24, 1927. Road-traffic signals on vehicles.-In signalling- apparatus for motor vehicles wherein the illumination or positioning of the direction indicator is effected by hand and, also independently, by the steering means, the hand lever is restored to its neutral position before the automatic device operates. The hand device is so arranged that during a turn to one side a proposed turn to the other side can be signalled. A battery 3 lights one or other of the arrows 1, 2 according to the selective contacts made by the longitudinal displacement of a bar 15 actuated by a handle 16<1>, and a bar 10 connected to a link 18 of the steering gear. Between the bars 15, 10 is a bar 9 carrying pivoted levers 11, 12, which are provided (a) with abutments 20, 21 for engagement by projections 13, 14 on the bar 15, and (b) with pointed ends for engagement by teeth 16<11> on the bar 10. Contacts 7, 8 on the bars 9, 10 co-operate with fixed contacts 4 - - 6, and the arrangement ensures that an erroneous manual signal is automatically put out when the car begins to turn, the bar 9 being moved into the neutral position by the engagement of the teeth 16" with a member 11 or 12. The bevelled edge 22 of the lever 11 or 12 then abuts against the projection 13 or 14, and releases the pointed end of the lever 11 or 12 from the teeth 16", and the bar 10 is displaced still farther, giving the appropriate signal. In a modification the bars 10, 15, 9 are curved and are rotatable concentrically about a common axis. For daylight use the battery 3 may be connected to two electromagnets 28, 29, Fig. 7, adapted to oscillate a pivoted armature 30 carrying an arm 32, the tooth rack 33 of which engages a gear 34 and turns an arrow 36 to the right or left according to the position of the bars 15, 10. The arrow may enclose a lamp, and may show red glass on one side and green glass on the other.
Patent GB-1321589-A (GB)
Title: Process for preparing iminodibenzyl compounds
IPC: B01J23/00
Filed: 1971-04-19
Abstract: 1321589 Iminodibenzyls R KITAMURA E KITAMURA T KITAMURA and T KITAMURA 19 April 1971 [23 Feb 1970] 22293/71 Heading C2C Iminodibenzyl compounds are prepared by heating 2,2<SP>1</SP>-diaminodibenzyl optionally substituted on the benzene ring(s) in the presence of at least one catalyst comprising a metal salt, an ammonium salt, a complex of a metal salt or an ammonium salt with 2,2<SP>1</SP>-diaminodibenzyl optionally substituted on the benzene ring(s), a complex of a metal salt with ammonia, a phosphorus halide, a phosphorus oxyhalide or a halogen. Specified catalysts are halides and sulphates of Li, Mg, Al, Si, Cu, Ca, Zn, Ti, V, Cr, Mn, Fe, Co, Ni, Ag, Cd, Sn, Sb, Pd, Ba, Hg, Pb, Bi and Pt, NH 4 Cl, NH 4 Br, NH 4 I, (NH 4 ) 2 SO 4 , complexes of these salts with optionally substituted 2,2<SP>1</SP>-diaminodibenzyl, complexes of the said metal salts with ammonia, and iodine. The examples relate to the preparation of iminodibenzyl itself, 3,7-dichloroiminodibenzyl and 3,7-dimethyliminodibenzyl. Complexes of metal salts and optionally substituted iminodibenzyls are prepared by heating the components in the melt or admixing solutions of the components.
Patent GB-1015659-A (GB)
Title: Digitalis tetraglycosides and the production thereof
IPC: C07J19/00
Filed: 1964-05-29
Abstract: The invention comprises a tetraglycoside saponin from the leaves of a Digitalis plant having the structure: <FORM:1015659/C2/1> and the preparation thereof by hydrolysing the leaf saponins from the leaves of the Digitalis plant with an enzyme preparation mainly consisting of glycosidase.
Patent GB-894514-A (GB)
Title: Improvements in or relating to garment waistband assemblies
IPC: A41F9/00
Filed: 1959-06-30
Abstract: 894,514. Garment waistbands. JOSEPH MACHINE CO. Inc. June 30, 1959 [Dec. 11, 1958], No. 22449/59. Class 141. In a trouser waistband comprising a stiffening band or canvas 44 and a lining strip or curtain 46 stitched together near their lower and upper edges at 48, 54 respectively and secured to the garment material 52 by the stitching 54, an additional stiffening tape 60 of plastics material is secured to the top edge of the canvas so as to stiffen the fold 64 in the garment material. The additional tape 60 is provided only in the front portion of the waistband and comprises linear polyethylene or a vinyl compound. The canvas 44 is made of buckram &c. while the curtain 46 consists of cotton, silk, nylon &c., both layers preferably being bias cut.
Patent GB-188420-A (GB)
Title: Improvements in or relating to photograph frames or other display articles
IPC: A47G1/14
Filed: 1921-08-24
Abstract: 188,420. Fordham, F. G., and Fordham & Co., Ltd. Aug. 24, 1921. Card and like stands.-In means for suspending photograph frames or other display articles of oblong or like-shape with either axis vertical, a length of flexible 'material is connected to the frame at pairs of points which are symmetrically disposed to each axis, and is free to slide through the points of connection so as to form suspending loops. In the form shown an endless cord 13 is threaded through six holes in the strut and through two holes in the back of the frame 2 in the manner shown, the upper holes 14, 15 in the strut being symmetrical to the major axis of the frame, and the middle and lower holes 16, 17, 9, 10 being symmetrical to the minor axis. In a modification, the strut has four holes, and the cord is secured in a single hole in the frame. Eyelets may be used instead of connection. If the frame is not provided with a strut, the cord may bo threaded through holes in the back of the frame.
Patent GB-218155-A (GB)
Title: Improvements in barless fixtures for domestic fire-places
IPC: F24B1/193
Filed: 1923-09-08
Abstract: 218,155. Marshall, W. Sept. 8, 1923. Grates; guards; fuel-economizers; supports for articles to be heated.-In barless grates having a utensil-supporting crow e, projections i are provided on the sides of the crow which may be engaged in recesses g on the side cheeks to enable the crow to hang in front of the fire, as shown in broken lines, in which position it serves to retain the fuel on the grate. The crow is provided with tapered side projections f which engage recesses g to support it in the horizontal position; by reversing it end for end' it may be made to project more or less over the fire. A trivet c is supported between lugs d on the side cheeks.
Patent GB-1462571-A (GB)
Title: Actuating mechanism for imparting oscillatory motion to an output shaft
IPC: B60S1/08
Filed: 1975-05-23
Abstract: 1462571 Windscreen wipers FORD MOTOR CO Ltd 23 May 1975 [13 Sept 1974] 22615/75 Heading A4F [Also in Division F2] In a windscreen wiper actuator mechanism, an oscillating rotary motion about a fixed axis is imparted to an output shaft 16 by a linkage comprising a crank arm 35, a link 36, and a crank arm 34 on a drive-shaft 24 secured to a worm-wheel 22 which is meshed with a worm 21 driven by a reversible motor 14, and the drive-shaft 24 is journalled in a sliding carriage composed of plates 27, 28, whose sliding travel is in a direction parallel with the axis of worm 21, and is limited by pins 31 within slots 32 in a fixed member 29, such that the axis of the worm-wheel 22 becomes slid forward during normal running into a first position, as shown in Fig. 2, and by torque reaction it becomes slid back towards the motor when the motor rotation is reversed, thereby displacing the travel of the linkage members so that the output shaft arc of oscillation becomes displaced in angular location. In a windscreen wiper unit this reversal of motor rotation is employed for reaching a pre-arranged stopping position, at which the wiper blade may become "parked" at an angular position lying displaced beyond one end of the swept arc of the normal oscillatory wiping travel of the blade. An electrical switch 41, Fig. 3, may be fitted, having a projecting member 42 which rides on a raised track 44 during normal forward travel, but which reaches a depressed surface 46 through a gate opening 45 when the worm-wheel 22 slides following motor reversal, causing switch 41 then to open the motor supply circuit. A relay (not shown) may be used, which completes a  forward motor drive circuit when energized by a manual switch, but which connects a motor reverse drive circuit when de-energized, thus initiating reversal when the manual switch is moved to an "off" or "park" position.
Patent GB-697063-A (GB)
Title: Improvements in or relating to protection of shoe uppers against soiling, abrasion or the like
IPC: A43D11/00
Filed: 1951-09-28
Abstract: 697,063. Protecting shoe uppers during manufacture; machines for applying. BRITISH UNITED SHOE MACHINERY CO., Ltd. Sept. 28, 1951 [Sept. 30, 1950], No. 22643/51. Classes 17 (i) and 17 (ii). A temporary protective cover C, Fig. 8, for the upper of a shoe S during or after shoe manufacture, has a pressuresensitive adhesive coating on one face and, after it has been placed over the shoe with a surplus margin extending beyond the edge, it is placed in a machine where it is held by the operator against a driven guide roll 18, Fig. 1, which positions it in relation to a yielding driven presser member 16 which adhesively secures the cover to the upper progressively along a path 17, Fig. 8, on the side of a shoe adjacent the featherline. The member 16 has a deformable work-engaging surface comprising a number of relatively movable annular plates 50 mounted against a member 48 of heat-insulating material supported on the hub 46 of the shaft of the member 16. This latter is heated by electric heating units 58. The roll 18 is adjustable relatively to member 16 by depression of a treadle 202 (not shown) to assist in holding the work against full width of member 16 on inside shank portion of shoe. The work, on insertion in the machine, lifts a wiper wheel 24 against a spring as the shoe bottom is brought up to the guide roll 18. Depression of the treadle 202 moves the wheel 24 away from the work and the roll 18, and nearer to the presser member 16. The wheel 24, which is angularly displaceable relatively to the member 16, draws the surplus margin of the cover C progressively over the last bottom as the work is guided by the operator against the roll 18, which is power driven from pulley 210 through a shaft 214. The members 16, 24 are driven from pulley 210 through slipping clutches 236, 228 respectively. An indenting tool 20 located between the members 16, 18 and having a rounded curved lower edge and a rounded inclined forward edge, is adjustably attached to a heater block 118 carried by a spring-urged arm 122 pivoted to an insulating block attached to a plate 30 of the machine frame. Its action serves to weaken the cover progressively along the boundary between the surplus marginal portion and the rest of the cover to facilitate removal of such portion. Specification 687,317 is referred to.
Patent GB-911845-A (GB)
Title: Improvements in the manufacture of complex fertilizers
Inventor: ANDRES LOUIS
IPC: C05B11/06
Filed: 1959-07-01
Abstract: Complex fertilizers are produced by attacking phosphate rock with nitric acid followed by sulphuric acid and/or phosphoric acid, precipitating dicalcium phosphate by ammonia and the rest, if any, of the calcium nitrate formed from the nitric acid by a reagent selected from:-sulphuric acid, phosphoric acid, carbon dioxide, ammonium carbonate, and ammonium carbamate, characterized in that a portion of the final product is recycled to the ammonia treatment, and the acid attack and first stage of the ammonia treatment are carried out in apparatus for treatment of materials having a liquid to pasty consistency, further characterized in that the nitric acid has a concentration of 50 to 70%, and moisture is evaporated off during the acid attack and first stage of ammoniation to reduce the moisture content to 14-16%, and to bring the mixture to the viscosity of the limiting viscosity suitable for the above referred to apparatus, and thereafter the mixture is brought abruptly to the solid state by recycling of the final product, after which the subsequent ammonsiation and calcium nitrate conversion steps are carried out. The final product may be screened into coarse, medium, and fine fractions, and the fine fraction recycled.  The solid phase treatment may be effected in a rotating enclosure, in which either the solids and gases move in countercurrent flow or in which the gases are injected into the solids.ALSO:Complex fertilizers are produced by attacking phosphate rock with nitric acid followed by sulphuric acid and/or phosphoric acid, precipitating dicalcium phosphate by ammonia and the rest, if any, of the calcium nitrate formed from the nitric acid by a reagent selected from:- sulphuric acid, phosphoric acid, carbon dioxide, ammonium carbonate, and ammonium carbamate, characterised in that a portion of the final product is recycled to the ammonia treatment, and the acid attack and first stage of the ammonia treatment are carried out in apparatus for treatment of materials having a liquid to pasty consistency, further characterized in that the nitric acid has a concentration of 50% to 70%, and moisture is evaporated off during the acid attack and first stage of ammoniation to reduce the moisture content to 14% to 16% and to bring the mixture to the vicinity of the limiting viscosity suitable for the above referred to apparatus, and thereafter the mixture is brought abruptly to the solid state by recycling of the final product, after which the subsequent ammoniation and calcium nitrate conversion steps are carried out.  The final p  product may be screened into coarse, medium, and fine fractions, and the fine fraction recycled.  The solid phase treatment may be effected in a rotating enclosure, in which either the solids and gases move in countercurrent flow or in which the gases are injected into the solids.
Patent GB-942778-A (GB)
Title: Improvements in process for agglutinating carbon black with rubber or like materials
IPC: C08L21/00
Filed: 1962-06-13
Abstract: Carbon black is agglutinated with elastomers by a process which comprises mixing, with vigorous agitation, an aqueous slurry of the carbon black with a solution of the rubber in an organic solvent, thus forming a pseudo-emulsion and causing the carbon black to be flushed into the elastomer solution, and thereafter dewatering and desolventizing the mixture to produce a coagulum comprising the elastomer having the carbon black dispersed therein.  The mixing is preferably carried out in a dispenser as described in Specification 765,486.  Specification 813,162 also is referred to.
Patent GB-322234-A (GB)
Title: Improvements in and relating to combined motion picture and sound reproducing apparatus
IPC: G03B31/00
Filed: 1928-07-20
Abstract: 322,234. Beatty, W. E., (Bell Telephone Laboratories, Inc.). July 20, 1928. Divided on 321,148. Drawings to Specification. Combined working of sound-reproducing apparatus with kinematographs. - Talking motionpicture apparatus comprising a picture projector and an apparatus for reproducing sound by a photo-electric system, is provided with means for detachably coupling apparatus of the gramophone or phonograph type, employing grooved records. By this means, either system of sound reproduction may be used in association with the projection of kinematograph pictures. The invention is shown as embodied in an apparatus in which a single stand carries a picture, projector and photo-electric apparatus for reproducing sound recorded on the picture film, a driving motor, and a disc record machine which is detachably mounted on the stand and is adapted to be driven by the same motor. This apparatus is fully described and shown in Specification 322,233. Specifications 271,810,; 320,864, [Class 80 (ii), Gearing, Variable-speed &c.], 320,872 and 322,235 also are referred to.