baber/WOPTO huggingface dataset:
Patent GB-324400-A (GB)
Title: Improvements in or relating to apparatus for folding and closing the ends of bags or the like
IPC: B65B7/08
Filed: 1928-10-26
Abstract: 324,400. Rose, A. G., and Rose Bros. (Gainsborough), Ltd. Oct. 26, 1928. Bags, folding down mouths of after filling.- The mouths of bags, of square or rectangular crosssection, are folded and closed in accordance with the method described in Specifition 281,174, [Class 94 (ii), Paper bags &c.]. The bags 10 are traversed through the machine by conveyer plates 14, Fig. 2, on an endless chain, and are first brought beneath a pair of plates 15 adapted to be lowered into the open mouth of the bag and to be separated in the same plane so that, in conjunction with folding blades 32, Fig. 3, the mouth of the bag is folded into an upstanding double wall 38, Fig. 7, with triangular tab portions 37, 137, lying in a horizontal plane. The fingers 15 and blades 32 now retire and a movement of the conveyer chain brings the bag beneath a creasing member 39, Fig. 2, which doubles over the upstanding wall 38 upon a smoothing plate 40. After the creasing member 39 has retired, a resiliently mounted pressure plate 44 presses the fold. The further movement of the conveyer passes the bag beneath guides which engage the fold and turn it over through 180‹, a plunger 62, Fig. 5, descends and presses the upper surface of the bag slightly below the upper edges of the guide plates on the conveyer, and also swings the tab portions 37, 137 upwards through 90‹ into a vertical position. The plunger returns and folders 64, 66 turn down the tabs, after which the bag is passed beneath a smoothing plate 69. The lower face of the plunger 62 may be recessed. Specification 218,534 is referred to.
Patent GB-664507-A (GB)
Title: Improvements in and relating to soldering by resistance or arc heating
IPC: B23K35/32
Filed: 1948-12-01
Abstract: 664,507. Soldering. BRITISH THOMSONHOUSTON CO., Ltd., and WESTON, R. F. Sept. 30, 1949 [Dec. 1, 1948], No. 31143/48. Class 83 (iv). A method of soldering molybdenum, tungsten or tantalum by resistance or arc heating comprises using zirconium as the solder metal in the form of powdered zirconium or zirconium hydride mixed with a liquid adherent such as methylated spirits, which evaporates to give a reducing atmosphere. Where the joint will be subject only to comparatively low temperatures, nickel iron or similar metal powder may be mixed with the zirconium or zirconium hydride. The method may be applied to the soldering of grid wires of thermionic valves or cathode assemblies of mercury discharge lamps to their supports.
Patent GB-1083652-A (GB)
Title: Optical glasses
IPC: C03C3/19
Filed: 1965-07-22
Abstract: An optical glass melt comprises 40-50% by weight boron metaphosphate and 50-60% by weight of oxides of Mg, Ca, Sr, Ba, Zn, Cd and/or Al. Also present may be silica and As2O3.  The Al may be added to the melt as aluminium borate.
Patent GB-540405-A (GB)
Title: Improvements in or relating to photographic contact printing apparatus
IPC: G03B27/02
Filed: 1940-12-02
Abstract: 540,405. Photographic contact-printing apparatus. BARRETT, G. A. Dec. 2, 1940, No. 31198/39. [Class 98 (ii)] Photographic contact-printing apparatus for the production of reflex copies of the type having spaced rollers supporting a supply of sensitized material and a translucent or transparent presser pad for pressing the length of sensitized material between the rollers into contact with the original laid beneath it, is characterized in that means are provided for indicating when a fresh length of sensitized material is wound into position between the rollers, the means comprising spring-urged electrical contact members which complete the circuit of an indicator lamp on the exterior of the apparatus but which are forced apart to break the circuit by the sensitized material as it is wound into position, spaced apertures in the sensitized material permitting the electrical contact members to re-establish the circuit when a fresh length of sensitized material is in position. As shown the chamber 1 has at the bottom a removable sliding shutter 2 retained in position by a spring latch. The spool carriers 5 and 6 provided with spring covers 16 and 17 have slots 7 and 8 through which the sensitized paper 9 passes across the chamber 1, the take-up spool 11 being rotated by a knob having a non-return device. The top of the chamber 1 is closed by a hinged lid 18 held by catches 20 and provided on its interior with electric lamps 21 and a battery 22. Plungers 23 passing through the lid 18 are connected by a cross-bar 24 and are normally held away from the lid by springs 25, stops 26 preventing complete withdrawal. The plungers 23 co-operate with mounts 27 carrying the glass presser plate 28, which is normally held away from the paper 9 by springs 29. A spring plunger 30 makes electrical contact with the handle 24 when it is depressed to complete the lamp circuit, an inspection orifice 31 being provided. Spaced apertures in the paper 9 permit the engagement of two spring contacts in an indicator lamp circuit to show when a new length of paper has been wound into position. A manual switch is provided in this circuit. A hinged frame 37 is provided to facilitate adjustment of the sheet 41 to be reproduced. Red light may be used in the printing of the sheet 41 and white light in the production of positives from the negatives so produced. The lamps 21 may be coloured or a separate colour filter may be used.
Patent GB-899809-A (GB)
Title: Improvements in or relating to an electric dry shaving apparatus
IPC: B26B19/26
Filed: 1959-09-14
Abstract: 899,809. Oscillating motors. GODEFROY, J. Sept. 14, 1959 [April 21, 1959], No. 31198/59. Class 35. [Also in Group XIV] An electric dry shaver comprises a motor having a swinging armature 23 with a pin 24 forming a common drive for reciprocation of blades 1, and oscillation, at a different frequency, of an apertured shear plate 3 about an axis lying in the direction of movement of the blades. The armature 23 is oscillated by coils and magnetic parts 27, 28, the oscillations of the pin 24, damped by springs 9a, rotating a block 9 on a shaft 8 to reciprocate the blades through the pin 4. The shaft 8 is mounted in bearings in the casing 7 for rotation by a ratchet-wheel 32 secured to the shaft 8 and operatively connected to the block 9 by a spring 31, the shear plate being oscillated in bearings 5, 5<SP>1</SP> by the engagement of its edges 16, 17 with cams 19, 19a fast with the shaft and having oppositely directed operative faces. Rotation of the shaft on the backward swing of the armature is prevented by the engagement of a spring 30 with the ratchet teeth. In a modification, reduced drive from the armature shaft is transmitted to the shear plate by two concentric roller couplings secured to the housing and to the shaft respectively and separated by an annulus secured to a cam plate which oscillates the shear plate and is only partially rotated by movement in one direction of the shaft.
Patent GB-742912-A (GB)
Title: Improvements relating to catalytical removal of free oxygen from gases containing free hydrogen and hydrogen sulphide
IPC: C10K3/00
Filed: 1953-11-11
Abstract: In a process for removing, by means of a catalyst accelerating the reaction of oxygen with hydrogen, free oxygen from a gas, e.g. shale distillation gas, containing free hydrogen and hydrogen sulphide in addition to oxygen in a concentration greater <PICT:0742912/III/1> than the critical concentration for the catalyst, i.e. that concentration of oxygen at which the amount of sulphur formed per unit of time by the oxidation of hydrogen sulphide with oxygen is equal to the amount of sulphur removed by evaporation and by reduction with hydrogen, the gas is diluted with a quantity of a gas of little or no oxygen content such that the oxygen concentration of the gas mixture will be below the critical concentration and the gas mixture is passed over the catalyst at a temperature between 150 DEG and 350 DEG C.  Suitable gases for the dilution are steam, natural gas, gas obtained by cracking mineral oil or mixtures thereof or gas freed from oxygen in the process. The catalyst mass comprises a catalyst component containing at least one of the metals molybdenum and tungsten as a sulphide and/or oxide, a promoter component containing at least one of the metals iron, cobalt, nickel, chromium, vanadium and uranium in the form of a sulphide and/or oxide, and a carrier component based on alumina, silica gel, magnesium oxide, aluminium silicate or mixtures thereof.  The atomic ratio between the metals in the catalyst and promoter components and the positive element of the carrier component should be 1-10 : 1-10 : 10-100, being preferably within the limits 0.5-1.5 : 0.5-1.5 : 10 and the amounts of catalyst and promoter components being of the same order. In one embodiment for treating a gas containing about 2 per cent oxygen four reactors R1, R2, R3 and R4 are employed.  Preheated untreated gas is introduced by line 1 into the reactors by lines 2, 7, 9 and 11, 7 per cent, 14 per cent, 28 per cent and 51 per cent of the untreated gas being fed respectively into reactors R1, R2, R3 and R4.  Treated gas is recycled from reactor R4 by line 3 into reactor R1 and in a quantity equal to 7 per cent of the untreated gas.  The gases from reactor R1 pass by line 6 into reactor R2, the gases from reactor R2 pass by line 8 into reactor R3 and the gases from reactor R3 pass by line 10 into reactor R4. Some of the untreated gas introduced into each reactor may be unpreheated, the proportion for a particular reactor being chosen to obtain the desired temperature in the reactor.  Some of the oxygen free gas introduced by line 3 into reactor R1 may be replaced by another gas of low oxygen content introduced through line 5.  In a modification the four reactors are arranged one above the other in a vertical column.  Specification 719,791 is referred to.
Patent GB-1536638-A (GB)
Title: Speed control system for continuous strip manufacturing apparatus
IPC: G05D13/62
Filed: 1977-07-26
Abstract: 1536638 Automatic control systems ESSEX GROUP Inc 26 July 1977 [4 Aug 1976] 31351/77 Heading G3R The speed of a motor 64 driving a work station (rolls 50) in a continuous strip manufacturing apparatus is controlled by a function generator 126 whose output is linearly proportional to the speed of a preceding work station (continuous casting wheel 24) and to the sum of a signal corresponding to the position of a loop detector 48 between the stations and a manually set signal 142 for a desired speed ratio of the two stations. The function generator comprises an alternator 128 whose rotating field is driven by the drive 38 for the casting wheel 24 and which is energized by the sum signal, obtained from variable transformers associated with the loop detector and manual setter, Fig. 2 (not shown). The output of the alternator is rectified at 136 and applied to a conventional speed controller 118 with tachogenerator 144 speed stabilizing feedback. A similar control system is applied to further rolls 52 ... 62, in response to the sum of manual setter 162 and loop detector 70 and the speed of motor 64, using a second function generator alternator 146. In this case the rolls are driven in unison by synchronous motors controlled from a motor/generator set 92. The product is cooled at 28 and coiled at 30.
Patent GB-1511348-A (GB)
Title: Electrochemical test to detect pinholes in photoreceptor substrate coatings
IPC: C25D11/02
Filed: 1975-07-28
Abstract: 1511348 Electrolytically marking defects in dielectric layers XEROX CORP 28 July 1975 [29 July 1974] 31503/75 Heading C7B The integrity of a dielectric charge blocking layer applied to a metal or metal-coated base is evaluated by immersing the base as anode in an aqueous electrolyte solution comprising an amine or amide, e.g. hexamethylenetetramine and at least one water soluble negative ion-forming organic dye, in a cell operated at 2 to 20 volts, then withdrawing the dielectric coated base from the cell for observing the marked defects e.g. pits. The base may be a xerographic photoreceptor plate, belt or cylinder comprising one of more of Al, stainless steel, Ta, W, Ni, brass, Pb, Mg, Mo or Zr, which may be coated on a plastic substrate. The dielectric coating may be of metal oxide, naturally formed (e.g. on steel) or applied e.g. by thermal or anodic oxidation (e.g. of Al) or by glow discharge, preferably an oxide of the metal base; or a polymeric blocking resin layer comprising at least one of a polybenzimidazole, polyester, polyurethane, polycarbonate or an epoxy resin. The cell may be of steel, glass or ceramic with the cathode being the container wall. Numerous dyes are specified including alizarin, benzidene, O-toluidine and other (un)substituted biphenyl aromatic and azo aromatic dyes, benzopurparine and trypen. Prior to electrolysis the base may be cleared.
Patent GB-1279701-A (GB)
Title: Livestock feeding apparatus
IPC: A01K5/02
Filed: 1969-06-23
Abstract: 1279701 Animal feeding apparatus FORDERTECHNIK STREICHER GmbH 23 June 1969 [21 June 1968 30 Aug 1968] 31553/69 Heading AIM [Also in Division F2] In a livestock feeding device fodder is fed into an intermediate container, from which fodder supply pipes lead the fodder to opening which are adjacent feeding stations, each fodder supply pipe has an adjustable valve associated with it. The complete cattle feeding device comprises a food stuff preparation chamber 1, fodder pump 2, fodder feed pipe 3, feed metering device 4, separate fodder supply pipes 5 leading to fodder troughs. The fodder enters the intermediate chamber 7 of the metering device via pipe 3. This device has valves 12, and valve seats 10, which control the supply of fodder to the feed supply pipes 5. The valves are actuated by motor 22, lifting plate 17 with which the valve stems 14 are in contact via stops 20. The amount of feed supply can be varied by adjusting the position of stops 20. Water may be fed into chamber 7 via pipe 34 and tap 35 for cleaning. In an alternative embodiment the valves are actuated by means of pivot arms and a rotating motor driven cam arm, Fig. 4 (not shown). In yet another embodiment the rotating motor driven cam arm acts directly on the valve stems, Fig. 6 (not shown).
Patent GB-1038920-A (GB)
Title: Method of preparing thiamine disulfide-bis-(monophosphate)
Inventor: FUJITA TADASHI
IPC: C07F9/09
Filed: 1965-07-23
Abstract: Thiamine - disulphide - bis - (monophosphate) is obtained by reacting thiamine monophosphate with an alkali to obtain a thiol form metal salt, oxidizing this in an aqueous alkaline solution in the absence of an organic solvent, acidifying the resulting solution to pH 3.9, and separating the product.  In examples aqueous solutions of thiamine monophosphate are reacted with sodium hydroxide and potassium hydroxide, and the solutions are oxidized with chlorine, bromine, iodine, hydrogen peroxide and potassium ferricyanide.
Patent GB-849038-A (GB)
Title: N-vinyl-3-morpholinone compounds and polymers thereof
IPC: C07D265/32
Filed: 1958-10-03
Abstract: <FORM:0849038/IV(a)/1> The invention comprises polymers containing in their polymeric structure the recurring group wherein X, Y and Z are each independently selected from hydrogen and C1-4 alkyl groups. The polymers may be prepared by polymerisation of the corresponding N-vinyl morpholinones alone or with other monoethylenically unsaturated monomers such as styrene, acrylonitrile, vinyl chloride, vinyl acetate or methyl methacrylate.  Polymerisation may be effected in bulk, solution, dispersion or emulsion with the aid of heat, azo or peroxygen catalysts or irradiation including that from radioactive material.  The polymers may be moulded and have good adhesiveness towards glass and ceramics.  They may be used as dye-assisting adjuvants for synthetic hydrophobic polymers.  Examples describe the preparation of homo-polymers of N-vinyl-3-morpholinone and the use of the polymer comprising spinning a poly acrylonitrile solution into filaments, contacting them in an aquagel condition with an aqueous solution of the N-vinyl morpholinone polymer and drying the impregnated fibres which are thereby rendered more readily dyeable. The N-vinyl-5-methyl and ethyl-3-morpholinones and the 2-and 6-alkyl analogues are other specified monomers.ALSO:The invention comprises N-vinyl-3-morpholinones having the general formula: <FORM:0849038/IV(b)/1> wherein X, Y and Z are independently selected from hydrogen or alkyl radicals containing from 1-4 carbon atoms. They may be prepared by N-vinylating the corresponding 3-morpholinone compound with acetylene.  In an example, 3-morpholinone is reacted with acetylene in the presence of the potassium salt of the morpholinone as catalyst at 150 DEG  C. under a pressure of 200 p.s.i. and the resulting N-vinyl-3-morpholinone is recovered from unchanged morpholinone by distillation.  Reference is made to the N-vinyl5-methyl andethyl morpholinones and the 2-and 6- alkyl substituted analogues.  The N-vinyl compounds may be brominated in the vinyl group by reaction with a chloroform solution of bromine. They may be homo- or co-polymerised (see Group IV(a)).
Patent GB-704664-A (GB)
Title: Improvements in or relating to advertising signs and the like
IPC: G09F13/00
Filed: 1949-12-09
Abstract: 704,664. Changing signs. GEE, S. G. March 9, 1951 [Dec. 9, 1949], No. 31713/49. Class 3(1) An illuminated sign comprises an endless blind 7 which is formed of transparent or translucent material having a pattern thereon and which is arranged between a light source 11 and a screen carrying advertising matter, the blind being driven by an electric motor so that the light from the source passes through two oppositely moving parts of the blind before reaching the advertising matter, a sheet 6 of transparent material having an uneven surface being disposed between the light source and the screen carrying the advertising matter, whereby light containing moving characteristics imparted to it by its passage through the blind is diffused by the sheet 6 before illuminating the advertising matter. A casing 3 having a viewing aperture 21 contains the blind which is mounted on rollers 9, 10 and is continuously moved by the electric motor (not shown). The web is painted or printed with a pattern which leaves transparent or translucent spaces through which light from the lamps 11 can pass. The pattern may be in a plurality of colours. In front of screen 6 and adjacent the viewing aperture is the screen carrying the advertising matter; this is either a sheet of glass bearing transparent advertising symbols on an opaque background or as shown part of an endless web 19 bearing advertising symbols 18. The web is mounted on rollers 20 and is moved by the motor which drives the web 7.
Patent GB-604535-A (GB)
Title: Improvement in methods comprising the attack of organic materials by bases, with subsequent pyrogenation
IPC: C07C45/78
Filed: 1945-11-26
Abstract: In the attack of plants and vegetable waste with equimolecular proportions of an alkalineearth base and an alkali carbonate in presence of water, with subsequent pyrolysis, the solid residue of the pyrolysis is calcined at a temperature high enough to decompose the alkaline earth carbonate, a mixture of alkaline earth base and alkali carbonate being thus regenerated, which may be re-utilized directly, at least in part, for a fresh attack of organic materials. Examples describe the operation, using lime and sodium carbonate. The products of the pyrolysis are oils containing ketones.
Patent GB-1146859-A (GB)
Title: Coupling of antenna to transistorised tuner
IPC: H03J5/24
Filed: 1966-07-15
Abstract: 1,146,859. Aerial coupling arrangements. INTERNATIONAL STANDARD ELECTRIC CORP. 15 July, 1966 [21 July, 1965], No. 31897/66. Heading H4A. In an aerial coupling arrangement for a transistorized R.F. amplifier, an aerial is connected to the common point 8 of two coils 1, 2 which together constitute an inductor for a lower-frequency tuning range. The coil 1 is coupled to a coil 10, which is connected to a first terminal of a range switch 9, the arm of which is connected to the control electrode of the transistor of the R.F. amplifier. The coil 2 is coupled to a coil 3, which constitutes an inductor for a higher-frequency range, and which is connected to a second terminal of the switch 9. A common tuning capacitor 4 is switched from one inductor to the other by a ganged switch 5, and other ganged switches 6, 7 shortcircuit the inductor not in use.
Patent GB-893442-A (GB)
Title: Improvements relating to heat exchange apparatus, particularly superheaters
Inventor: WOOSMAN MAXWELL SEELY
IPC: F22G1/16
Filed: 1959-09-18
Abstract: 893,442. Steam superheaters. URQUHART'S (1926) Ltd. Sept. 7, 1960 [Sept. 18, 1959], No. 31940/59. Class 123(3) A compact superheater, having its own heating system, comprises a combustion chamber 1 which is mounted on top of a cylindrical casing 5 in which is arranged a co-axial central duct 7 composed of a circular group of inverted U- shaped tubes 3 connected, at their lower ends, to two concentric annular headers 6, 6<SP>1</SP>. A high velocity jet of combustion gases, which issues from the combustion chamber throat 2 and passes downwardly through the duct 7, is deflected upwardly by a concave block to pass along an annular passage 9. A large proportion of gases is entrained by the jet for recirculation, the remainder passing downwardly on the outside of the tubes 3 to an exit 10. Modifications are described which include a single circular group, and two concentric groups, of straight tubes. Specification 703,914 is referred to.
Patent GB-281653-A (GB)
Title: Improvements in separating apparatus for tar and the like
IPC: C10K1/04
Filed: 1927-11-28
Abstract: 281,653. Soc., Anon. La Carbonite, (Assignees of Hennebutte, H., and Goutal, E.). Dec. 2, 1926, [Convention date]. Tar; liquids, treating with gases.- Apparatus for separating tar &c. from the distillation products obtained in the carbonization of wood, peat. lignite &c., comprises a vat 1 within a casing 2 and supplied with hot gases through a conduit 3 leading to an inverted truncated conical vessel 4. Within the lower end of the vessel a second tapering vessel 5 provided with stirrer blades 9 is rotatably mounted and produces an emulsion like mixture of the gases with condensed products in the vat. Curved tubes 10 return liquid from the vat to the interior of the vessel 4. Remain. ing gases are withdrawn through a conduit 15, and a pipe 16 for discharge of liquid maintains a constant level in the vat.
Patent GB-600700-A (GB)
Title: Improvements in surface or checking plates
IPC: G01B3/00
Filed: 1945-11-27
Abstract: 600,700. Surface plates. WEIS, G. C., and MASTER INDUSTRIES, Inc. Nov. 27, 1945, No. 31983. [Class 106 (ii)] A surface or checking plate comprises a work-supporting face 11, a side face 14 exactly at right angles thereto, an undercut anchoring channel or groove 15 in the work-supporting face 11 in juxtaposition and parallel to the side face 14, and means whereby stocks 18, a riser plate 30 or a bar 50 may be rigidly clamped angularly adjustable bar 50, Fig. 6, or a sine against the side face 14. Head and tail stocks 18, Fig. 2, may be clamped against faces 11. and 14, as shown, to provide work-supporting centres, or these stocks may be clamped on an bar 209, Fig. 8. Alternatively, a riser plate 30, Fig. 4, clamped to the face 14, may carry an angularly adjustable angle plate 39 to which the work can be clamped. The riser plate could be equipped with a vertically slidable, angularly rotatable disc &c., similar to that of the angle plate 200, Fig. 8.