baber/WOPTO huggingface dataset:
Patent GB-1475866-A (GB)
Title: High pressure metal vapour lamp and a transparent polycrystalline alumina tube therefor
IPC: C04B35/111
Filed: 1976-03-03
Abstract: 1475866 Alumina tubes NIPPON GAISHI KK 3 March 1976 [18 March 1975] 08456/76 Heading C1A [Also in Division H1] The transparent polycrystalline alumina tube forming the envelope of a high pressure metal vapour lamp has a larger average crystal grain size in the central portion of the tube than in its two end portions, whereby mechanical strength is maintained in the end portions, which are subjected to most stress, while the translucency of the tube is maintained high in the central portion. The average grain size in the central and end portions is preferably 10-200 microns and 1-20 microns respectively. The tube may be manufactured from initially uniform material by subsequently impregnating it, before calcining and sintering, to provide an increased proportion of MgO in the end portions, or by sintering the different portions at different temperatures, or the starting material may be arranged to have varying quantities of additives along the length of the tube. The average grain size in the central and end portions of the tube is preferably 10-200 microns and 1-20 microns respectively.
Patent GB-670165-A (GB)
Title: Vehicle wheel
IPC: B60B9/20
Filed: 1950-04-04
Abstract: 670,165. Vehicle wheels. ALVISTUR, O. April 4, 1950, No. 8483/50. Class 144 (i). A resilient wheel comprises an inflatable tube 14 in a tyre cover 13 protected by a series of arcuate metal sections 9 ... 12 fitted with a rubber &c. tread 26, side-plates 7, 8 connected by bolts 20, 21 passing through radial slots 19 in the side-plates and arcuate sections, and a central spacing-sleeve 29 on which the pneumatic element is seated.
Patent GB-951009-A (GB)
Title: Improved gas dehydration process
IPC: B01D53/26
Filed: 1962-03-06
Abstract: 951,009. Drying hydrocarbonaceous gases. ESSO RESEARCH & ENGINEERING CO. March 6, 1962 [March 21, 1961], No. 8556/62. Heading B1L. A process for drying a moisture-containing hydrocarbonaceous gas stream susceptible to hydrate formation comprises admixing with said stream an aqueous solution of an electrolyte preferably having a concentration of 1-10%, passing the resultant mixture into a chilling zone, separating the electrolyte solution from the cooled mixture and thereafter passing the gaseous stream through a bed of solid desiccant. As shown in the Figure, wet cracked gas at 150 p.s.i.g. in line 2 is mixed with 1-10% NaOH solution from line 4 and the liquid-gas mixture is passed through a chiller 8 operating at 35-40 ‹F. The liquid content is removed from the cooled liquid-gas mixture in knockout drum 12 and hydrogen and C 1 -C 4  hydrocarbon gases are passed to alumina dehydrator 24, the dried gas passing out through line 26 The liquid from vessel 12 passes to settling tank 16 for recovery of the electrolyte and condensed C 4  and C 5  hydrocarbons. The weight ratio of gas to electrolyte solution is 60-70:1. The Specification also refers to drying a gas stream containing butylene and methyl chloride refrigerant which was cooled to 48 ‹F. before passing to vessel 12.
Patent GB-661782-A (GB)
Title: Improvements in power amplifiers comprising electron discharge tubes
IPC: H03F3/52
Filed: 1949-03-30
Abstract: 661,782. Valve amplifying circuits. SOC. INDUSTRIELLE DES PROCEDES LOTH. March 30, 1949 [April 2, 1948], No. 8613/49. Class 40 (vi). The maximum output obtainable from a screen-grid or like valve used as a cathode-follower is increased by driving the screen-grid in phase with the output voltage, by means of a stepup auto-transformer 19.
Patent GB-154119-A (GB)
Title: Improvements in sewers
IPC: E03F3/06
Filed: 1920-03-24
Abstract: 154,119. Sheen, M. R. March 24, 1920. Shafts and tunnels.-An excavation is lined with wedge-shaped blocks by means of a cylinder 3 having a cam face 4, and rotating inside a casing 1. The blocks 10 are inserted in a. jacket 8 in the cylinder, which, as it rotates, forces the blocks together and is itself pushed forward. The casing has a tapering edge 2 so that the lining of blocks expands gradually to the.full diameter of the excavation.
Patent GB-127107-A (GB)
Title: Improvements in the Construction of Radiators for Use Chiefly in connection with Internal Combustion Engines.
Inventor: ALFORD FRANK EDWARD
IPC: F28F1/24
Filed: 1918-05-25
Abstract: 127,107. Alford, F. E. May 25, 1918. P l a t e apparatus. - A radiator, particularly for use with internal-combustion engines, comprises a number of verticallyarranged elements a each formed by bending upon itself a channelled sheet of metal so as to produce a series of water channels d in each sheet, the elements being spaced apart by a number of horizontally-disposed webs c which have openings shaped to fit the channelled portions of the sheets a. The portions b of the sheets between the channels d abut so as to form a web dividing the channels, and are soldered or otherwise secured together.
Patent GB-923631-A (GB)
Title: Improvements in or relating to control circuits including saturable reactor arrangements
Inventor: BURROWS MICHAEL LEONARD
IPC: H03F9/02
Filed: 1958-03-19
Abstract: 923,631. Controlled non-linear inductors. AUTOMATIC TELEPHONES & ELECTRIC CO. March 13, 1959 [March 19, 1958], No. 8747/58. Class 40 (9). A saturable reactor controlling the supply of alternating current from a source 7 to a resistor 8 and a load circuit 9, 10 has two balanced direct current control windings 1, 2. The windings 1, 2 are in opposition and one of them is shunted by a Zener diode 5. The control current has no effect on the reactor until the back resistance of the diode breaks down.
Patent GB-554336-A (GB)
Title: Improvements in the method of and means for making hollow concrete units
IPC: B28B7/30
Filed: 1941-09-19
Abstract: 554,336. Bores for casting hollow concrete units. MATHEWS, C. B., and AMBROSE, J. G. Sept. 19, 1941, No. 8769/43. Divided out of 554,269. [Class 87 (ii)] A non-circular non- inflatable core comprisestwo or more rubber or like resilient tubes B laid side by side and flexibly connected together as by sponge-rubber pieces C. A loose fabric or paper casing E covers the core. Specification 554,269 is referred to.
Patent GB-940495-A (GB)
Title: Dyeing polyolefine materials
Inventor: HENSEL WALTER
IPC: D06P1/22
Filed: 1962-03-08
Abstract: Polyolefin materials are dyed by applying from an aqueous bath a vat dye in finely divided form and fixing by the action of heat. The vat dyes should be finely dispersed in the dyebath having a particle size 0.1-3 microns, advantageously with the aid of dispensing agents such as naphthalene sulphonic acid/formaldehyde condensates, sodium H-benzylsulphanitate and sulphite cellulose waste liquor.  The dyes may be applied in the form of their vat acids which are prepared by reducing the vat dye conventionally to the leuco dye salts in an alkaline solution containing sodium dithionite, salts of hydroxyalkane-sulphinic acids or their reaction products with ammonia or amines, thiourea dioxide, potassium borohydride or glucose and then liberating the vat acids by neutralising or weakly acidifying with, for example, acetic acid preferably in the presence of dispersing agents of the above mentioned type.  The dyes may be applied by impregnation or padding at 40-80 DEG C. and then preferably dried.  Fixation is achieved at a temperature between 100 DEG C. and the softening point of the material, heating by means of infrared radiation, hot air, contact with heated rollers or baths of molten metal.  If the vat dyes have been fixed on the material in unreduced form finishing may be achieved by rinsing, soaping and drying; otherwise an oxidative treatment with atmospheric oxygen, hydrogen peroxide, alkali metal perborates, persulphates or dichromates, if desired in a hot aqueous bath, is introduced.  In the case of the dye being fixed in the form of its vat acid it is preferred that it is first converted to the leuco dye salt with an alkaline reducing bath and then re-oxidised and finished as above. Examples of dyeing fabrics of polypropylene fibres are given. Specification 906,899 is referred to.
Patent GB-1105882-A (GB)
Title: Manufacture of silicon carbide fibres
IPC: C30B25/00
Filed: 1966-03-01
Abstract: Submicroscopic b -SiC fibres are made by mixing SiO2 and C in a molar ratio of 1:1 to 10 in a reaction chamber, reacting the mixture at 1375 DEG  to 1575 DEG  C. in the presence of a COcontaining atmosphere, the CO having a partial pressure of 5 to 500 mm. Hg, forming the fibres from the reaction product at 1050 DEG  to 1380 DEG C. and cooling the fibres to room temp.  The atmosphere may also contain at least one of H2, He, N, and Ar and have a sum of partial pressures of 760 mm. Hg.  The time to form the fibres may be 2 to 24 hrs.  The reaction chamber may be evacuated to an abs. pressure of not more than 5 mm. Hg and heated to 600 DEG  C. after providing the SiO2 and C mixture so as to allow complete degassing.  The fibres may be cooled by cooling the chamber to 600 DEG  C., introducing air and cooling further to room temp.  The fibres have an average diameter of 250 <\>rA, a length up to 100m , a length to diameter ratio of 40,000:1 and have a surface sheath of SiO2.
Patent GB-1356243-A (GB)
Title: Non-return valve
IPC: F16K1/42
Filed: 1973-02-23
Abstract: 1356243 Valves PHILIPS GLOEILAMPENFABRIEKEN NV 23 Feb 1973 [25 Feb 1972] 8982/73 Heading F2V A non-return valve has a flat-faced displaceable valve member 4 co-operating with a seating ring 3 whose initial inner and outer diameters d, D respectively decrease and increase with increasing axial distance from its flat seating surface 6 so as to give increasing radial thickness of the ring. Valve member 4 is of nickelchromium steel of initially greater hardness than the chromium-nickel steel of ring 3 such that the latter undergoes initial plastic deformation under the closing force of member 4 so as to increase the area and hardness of seating surface 6. The compositions and hardness values of the steels are specified. The closing action on member 4 is exerted by spring 7 and/or fluid pressure. In a modification (Fig. 2, not shown) the rounded surfaces a 1 , a 2  of ring 3 are replaced by bevels. The valve may be in the inlet or outlet of a compressor.
Patent GB-1370848-A (GB)
Title: Coin operated mechanism
IPC: G07F15/12
Filed: 1972-02-28
Abstract: 1370848 Prepayment meters WALTER KIDDE & CO Inc 28 Feb 1972 9018/72 Heading G4V A prepayment meter for controlling the supply of electricity to, for example, a washing machine on a time basis includes a rotary coin carrier which accepts coins of two different denominations and is movable through an angular distance corresponding to the value of the coin carried in order to deposit the coin, mask means being provided for preventing the insertion of one coin until the other coin has been deposited. As shown in Figs. 1, 2 and 7, a coin inserted through an appropriate slot 15 or 16 in front plate 11 serves to couple a manually rotatable knob 20 to a toothed time-setting wheel 33 via yoke 24, ratchet-plate 31 and pawl 37. After an amount of clockwise rotation corresponding to the value of the coin carried the coin drops through a discharge slot and when released the knob 20, yoke 24 and ratchet plate 34 are returned to their initial positions by a spring. A pivoted feeler 35 co-operates with the wheel 33 to set switches S1, S2 to initiate the electrical supply and to start an electric clock mechanism 40 which drives a star-wheel 44 via a pin-wheel 42 (see also Fig. 16, not shown). In the embodiment shown, slot mask 51, Fig. 17 (see also Figs. 18 to 20, not reproduced), is rotatably mounted behind the front plate 11, the mask having radial slots (54A) to (54C), peripheral indexing notches (56) that co-operate with a detent spring (55) and apertures (53) which are engaged by a spring-loaded latch on the coin carrier to index the mask. In the intial state coin slot 16 is aligned with a slot in the mask but coin slot 15 is blocked and after deposit of the first coin the mask is indexed such that slot 15 is open and slot 16 blocked. An adapter plate (57) (Fig. 21, not shown), is secured to time-setting wheel 33, this plate having a peripheral contour that only allows the follower 35 to move to its switch closing position after the deposit of a coin of each denomination.
Patent GB-597327-A (GB)
Title: Improvements in and relating to pressure sensitive adhesive tapes or sheets made with a woven glass fabric backing
IPC: C09J7/21
Filed: 1944-05-12
Abstract: 597,327. Pressure-sensitive adhesive tape. JOHNSON & JOHNSON (GREAT BRITAIN), Ltd. May 12, 1944, No. 9138. Convention date, May 13, 1943. [Class 140] A pressure-sensitive adhesive sheet or tape having a backing of woven glass fabric which is slit in the course of manufacture with a cutting tool has a binder coating applied to at least one surface prior to the slitting operation to prevent fraying out of the newly-formed edges and to prevent the formation of dust. The binder coating may comprise cellulose ethers such as ethyl or methyl cellulose ; cellulose esters such as the acetate or nitrate or polyvinyl esters such as the acetate or chloride, and may be applied, preferably to one surface of the glass fabric, by calendering, hot melt or solvent spreading or by brush. Solvent spreading is preferred ; ethyl cellulose dissolved in toluol or other aromatic solvent, methyl ethyl ketone or alcohol may be so applied, and a plasticiser such as castor oil, a condensation product of castor oil maleic acid or its anhydride and a monohydric terpene alcohol, dibutyl phthalate or tricresyl phosphate or mixtures thereof may be incorporated in the ethyl cellulose. Cellulose acetate with Santicizer M-17 (methyl phthalyl ethyl glycollate) or Santicizer 8 (ortho and para toluene ethyl sulphonamides) as plasticiser and a mixture of acetone, methyl ethyl ketone and nitropropane as solvent ; polyvinyl acetate in acetone or polyvinyl chloride in a solvent such as chlorobenzene or cyclohexanone is also suitable. When hot melt spreading is used, waxes such as beeswax or paraffin wax may be added to the coating substances to ensure better flow. If desired, a pre-formed sheet of material such as cellulose acetate may be applied to one surface of the glass fabric. When the coating is applied in solution, the solvent is removed by heat. In manufacture, after application of the binder coating to the glass fabric a pressuresensitive adhesive mass, such as a specified reclaim composition, is applied to the other side of the fabric and this is then slit longitudinally into the desired widths and wound into rolls. The binder prevents mass transfer during storage.
Patent GB-259623-A (GB)
Title: Improvements in thermionic valve holders
IPC: H01R33/76
Filed: 1925-04-06
Abstract: 259,623. Lissen, Ltd., and Richardson, R. P. April 6, 1925. Vacuum tubes. - A valveholder comprises an insulating- base, preferably a shell 1, formed to receive the valve pins, and having leaf-spring contacts 5 secured upon the base and projecting through lateral openings 3 so as to engage the pins with sliding contact. The pins are guided in grooves 2. The shell may be open at the bottom and closed at the top, or provided with a partition at an intermediate position. In a modification the valve pins fit around the shell and the leaf springs bear outwardly. In another arrangement four bores for the pins are formed in the base.
Patent GB-1164141-A (GB)
Title: Detergent Packaging and Dispensing Device
Inventor: MAY GWILYM MANSELL DE
IPC: B65D83/00
Filed: 1966-03-02
Abstract: 1,164,141. Detergent holder and dispenser. SMITH HAYDEN & CO. Ltd. 20 Feb., 1967 [2 March, 1966], No. 9168/66. Heading A4V. A combined detergent packaging and dispensing device consists of a blow-moulded rigid or semi-rigid cylindrical capsule closed at both ends, within which the detergent composition is enclosed the capsule having openings in its walls so that when it is immersed in a flowing liquid it allows access of the liquid to the detergent composition. The cylindrical capsule, 1, is moulded from Thermoplastic material, the cylindrical wall, 2, having a plurality of spaced, outwardly extending, hollow projections, 3. A self-sealing slit is formed in one end of the capsule at 4 to allow filling of the capsule with the detergent composition (Fig.1). After the filling operation the projections, 3, are removed by a heated cutter (Fig.2). Other forms of the capsule have axially extending, outwardly projecting pins or lateral circumferentially outwardly projecting pins. Another form of the device consists of 2 cylindrical members each open at one end, one being fitted inside the other.
Patent GB-663048-A (GB)
Title: Improvements in or relating to plug taps or cocks
IPC: F16K5/02
Filed: 1948-04-01
Abstract: 663,048. Plug taps or cocks. JACKSON BOILERS, Ltd., and MUSTILL, C. W. April 1, 1948. No. 9179/48. Class 135 A plug tap or cork has a removable sleeve or bushing E of hard wearing material or metal interposed between the tap body A and the plug I, and prevented from rotating by a lug F. Fig. 1 engaging a recess in the top of the tap body or by a screw H, Fig. 2, engaging a recess in the sleeve E. The sleeve E, which has ports N is also held in position by a nut G engaging the threaded lower end of the sleeve. The rotation of the plug is limited by a pin L operating in a cut away portion of the tap body. The tap may have an axial outlet C, Fig. 1, in the plug or an outlet P formed on the tap body and provided with a detachable nozzle Q. The plug may be removed by detaching a nut J. The passages O, B may be cleaned without removing the plug, by unscrewing a plug R<SP>1</SP>. In Fig. 1, the plug R has a projection R<SP>1</SP> which serves as an additional means to prevent rotation of the sleeve E.
Patent GB-483416-A (GB)
Title: Improvements in or relating to methods of and machines for effecting combined fastening and seam covering stitches
IPC: D05B73/12
Filed: 1937-03-31
Abstract: 483,416. Sewing-machines. MAUSERWERKE AKT.-GES. March 31, 1937, No. 9211. Convention date, April 3, 1936. Addition to 415,270. [Class 112] Two pieces of fabric are joined by a seam which comprises stitches passing through the folded edge of one fabric and through the flat edge of the other by feeding the flat edge at a lower level than the folded edge. The apparatus of the parent Specification is modified by feeding the two pieces of fabric at different levels, the work support being modified to effect this. The flat edge of the fabric m is supported on the laterally movable work support a carried in the arm A. This support has a recessed part b adjacent to the throat plate l which supports the folded fabric edge n. The fabric edge n is held on to the throat plate by the presser foot d and the flat edge m is held in the recess by an adjustable sole c secured by a screw e to the presser foot. The edge of the sole c acts as a guide for the folded edge n, so that the needle blind switches the fabric n and passes through the fabric m.
Patent GB-217362-A (GB)
Title: Improvements in or relating to pedestal bearings for the axles of colliery trams andlike vehicles
IPC: B61F5/28
Filed: 1923-04-04
Abstract: 217,362. Hatton, J. April 4, 1923. Vehicle-axle bearings.-In a two-part pedestal bearing for corve and like axles in which the foot A of the upper part is of the same external dimensions in plan as the lower part, the horizontal extensions E on the central hollow portion C of the lower part are formed with recesses E<1> in their upper races to receive projections D on the underside of the foot A. The bearing extension B on the foot A is also formed with projecting parts A<1> which fit into the central hcllow portion C. The cavity G in the part C is filled with cotton waste or the like impregrated with lubricant.
Patent GB-1505344-A (GB)
Title: Radiant energy collectors
IPC: H01M14/00
Filed: 1974-02-28
Abstract: 1505344 Solar heat collectors INDUSTRY SECRETARY OF STATE FOR 19 Feb 1975 [28 Feb 1974] 9235/74 Addition to 1462618 Heading F4U A solar radiation collector comprises an energy absorbing panel 12 provided with an optical reflection filter 20 which allows the passage of incident radiation but returns radiation re-emitted by the energy absorbing material in the panel 12. As shown, the panel comprises a container 12 provided with a side 14, which is black on its outer face 16, and with pipes 22, 24 whereby water may be circulated through the container, the water heated therein being employed for domestic or other heating purposes. The container 12 is provided with lagging 25 which may be glass wool and/or a vacuum jacket. The filter 20 comprises a substrate, opaque at least to visible radiation, on which is arranged a regular array of small protuberances, Fig. 2 (not shown). The spacing of the protuberances is less than the smallest wavelength of the incident visible radiation divided by the refractive index of the material of the protuberances, and the height is not less than a third of the longest wavelength of the incident visible radiation.
Patent GB-139062-A (GB)
Title: Improvements in or relating to labels, tickets, badges and the like
IPC: G09F3/04
Filed: 1919-04-11
Abstract: 139,062. Leich, H. H. April 11, 1919. Securing g labels. -Labels, tickets, badges, &c. for attachment to buttons on garments are formed with holes shaped, as shown, with a large round or oval portion b through which the button is passed, a narrow portion c the shoulders of which are rounded as at e, and a small opening d with squared shoulders f. The shank of the button passes through the portion c into the opening d, where it is caught by theshoulders f and retained.
Patent GB-551434-A (GB)
Title: Dyes and dyeing
IPC: C09B29/08
Filed: 1941-07-23
Abstract: 551,434. Dyes and dyeing ; artificial silk : cellulose derivative compositions. ARGYLE, C. S. July 23, 1941, No. 9299. [Classes 2 (ii), (iii) and 15 (ii)] Azo dyes are obtained by coupling a diazotized 2-aminothiazole with . a mono-acidvl-mphenylenediamine. Specified diazo components are 4-methyl-2-aminothiazole, 2-amino-benzthiazole and its 6-methyl, 6-methoxy, 6- ethoxy, 6-chloro, 6-acetylamino and 6-benzoylamino derivatives and 2-amino-4:5-benzobenzthiazole, and specified coupling components are m-amino-acetamilide and its N- diethyl, N-di-(#-hydroxyethyl) and N-ethyl-N- #-hydroxyethyl derivatives, N-dimethyl-maminopropionanilide, 3-dietliylamino-4-methylacetanilide, 3-diethylamino-4-methoxy-acetanilide, N-diethyl-m-amino-stearanilide and N- diethyl-m-amino-benzanilide. The products give dischargable brilliant red shades on cellulose ester or ether materials and are applicable also for colouring synthetic linear superpolyamide materials. They may also be incorporated in cellulose ester or ether lacquers or spinning solutions. The dyestuffs containing diazotizable amino groups may be diazotized upon the materials and developed, e.g. with N-diethylaniline, N-di-(#-hydroxyethyl)-m-toluidine, N-diethyl-m-amino acetanilide or N-ethyl-1-naphthylamine. Examples relate to the production of the dyestuffs, (1) 2-amino-benzthiazole # N-diethyl-mamino-acetanilide or N-diethyl-m-amino-stearanilide, (2) 6-ethoxy-2-amino-benzthiazole - m-amino-acetanilide, which gives on cellulose acetate yarn, from an aqueous dispersion, bright bluish red dyeings capable of diazotization on the fibre and development with N-diethylaniline, N-di-(#-hydroxyethyl)-m-toluidine or N-diethyl-m-amino-acetanilide, (3) 6-acetylamino-2-amino-benzthiazole # N-di-(#- hydroxylethyl)-m-amino-acetanilide. An example is also given of the dyeing of a cellulose acetate knitted fabric with the azo dye of (1) above. Specification 440,113 is referred to. 6- Acetylamino-2-aminobenzthiazole and 6- benzoylamino-2-aminobenzthiazole are obtained by adding bromine to solutions of p-aminoacetanilide and p-aminobenzanilide respectively in glacial acetic acid containing ammonium thiocyanate. N-diethyl-m-amino-stearanilide and N-diethyl-m-amino-benzanilide are obtained by the action of stearic acid chloride and benzoyl chloride respectively on 3-diethylaminoaniline.