baber/WOPTO huggingface dataset:
Patent GB-676229-A (GB)
Title: Improvements in or relating to containers for artists' equipment
IPC: B44D3/04
Filed: 1949-06-30
Abstract: 676,229. Artists' painting appliances. GREEN, L. J. June 21, 1950 [June 30, 1949], No. 17385/49. Class 11. A container for artists' equipment comprises a back wall 11 which is upright in the normal position of use, a short front wall 12 secured between the sides 10 of the container, and a cover part 14 so hinged at 13 to the wall 12 that in the open position it is maintained substantially horizontal, the cover part being provided or formed with a palette or mixing plate, and with partitions for accommodating tubes of paint, and the container accommodating one or more liquid containers behind the front wall 12. As shown, a liquid reservoir 21 with an internally threaded closure cap 22, and a paint-brush dipper 23 are located between the walls 11, 12. The dipper 23 has a hooked lug 24 whereby it may be engaged with a side flange 15 of the cover. Alternatively, the cap 22 may be formed with a lug and used for the same purpose. The cover 14 has side flanges 15-18, the flanges 15, 17 having extensions 19 which engage lugs 20 secured to the side walls 10 in order to retain the cover in a horizontal 'position when open. A partition 25 divides the cover into two parts, in one of which are dividing walls 26 forming spaces for accommodating paint tubes. In the other part, a corrugated bottom plate 27 provides depressions for mixing paint with water. The side flanges 15, 17 are bent inwardly to form slideways 28 for a palette plate 29 having an upstanding flange 30 and division plates 31 providing spaces for accommodating paints squeeged out of the tubes. The plate 29 is half the width of the cover 14 so that it may be moved clear either of the walls 26 or of the corrugated bottom 27. Clips 32 are attached to the back wall 11 for holding brushes. A lid 34 is hinged to the top 33 of the container and carries a clip 37 on a thong 36 for engaging a catch 41, Fig. 2 (not shown) on the cover 14 when the latter is in closed position. When the container is in use, it is supported by a strap 39 secured to the ends 10 and passed around the neck of the user. According to the Provisional Specification, the container may have means for the attachment thereto of an easel or a holder for a canvas.
Patent GB-157690-A (GB)
Title: Apparatus for feeding a locomotive boiler with water preheated by steam from the boiler
IPC: F22D1/42
Filed: 1920-06-26
Abstract: 157,690. Rushen, P. C., (Knorr-Bremse Akt.-Ges.). June 26, 1920. Feed - water, heating.-In an arrangement for feeding a locomotive boiler e by means of a piston feedpump c, the steam supply to the preheater d, fitted in the feed-pump delivery circuit, is taken from the steam-pipe b, between the stop valve a and the pump. If the preheater d is not fitted, the pipe f opens directly into the feed delivery.
Patent GB-530073-A (GB)
Title: Improvements in and relating to electric discharge devices
IPC: H01J13/48
Filed: 1939-06-15
Abstract: 530,073. Discharge apparatus. BRITISH THOMSON-HOUSTON CO., Ltd. June 15, 1939, No. 17520. Convention date, June 17, 1938. [Class 39 (i)] [Also in Group XXXV] In electric discharge apparatus of the liquid cathode type, insulated particles are retained in intimate contact with the surface of the cathode, and the discharge is initiated by producing an ionizing discharge independently of the main discharge. The halfwave rectifier shown in Fig. 7 comprises a metal envelope 10, cathode pool 12, anode 11, and starting electrode 20 which may be a plain tungsten wire or a refractory core coated or otherwise treated with electron emissive material and is heated by current from a transformer 23. The potential of the filament relative to the anode is obtained by the connection 26 including a high resistance 28. The device for facilitating the transfer of the discharge to the cathode consists of a solid body 30, either floating on the mercury pool 12 or anchored to wall of the envelope, and consisting of a porous agglomeration of partially sintered particles of carburized molybdenum or tungsten as described in Specification 481,078, with sharp edged particles of insulating material such as quartz, glass, aluminia &c. embedded in the upper exposed surface. The initiation of the discharge may be controlled by varying the connection 26 or by the provision of a grid between the electrode 20 and the anode. Arc-back may be prevented by an electrode interposed between the electrode 20 and the cathode and connected to the anode. A device utilizing two mercury pools 41, 42, is shown in Fig. 5, in conjunction with a circuit for varying the character of the output circuit. The source of potential 60 and a high resistance 61, of the order of several thousand ohms, are connected in parallel to the mercury pools and a transformer 63 supplies power to a load device 64, whose operation may require an adjustable asymmetric current, such as a variable speed alternating current motor. The variation is obtained by connecting the starting electrodes 48, 49 to the potential divider 61 by an adjustable contact 66. In order to reduce the length of the discharge, anodes 53, 54 of graphite &c. are disposed adjacent the mercury pools and conductively connected by leads 56, 57 as shown.
Patent GB-129693-A (GB)
Title: Improvements relating to Liquid Fuel Supply Arrangements of Internal Combustion Engines.
Inventor: HIGGINSON JOSEPH
IPC: F02M37/02
Filed: 1917-11-27
Abstract: 129,693. Higginson, J., and Arundel, H. Nov. 27, 1917. Addition to 125,147. Vacuum apparatus.-According to the parent Specification a vessel b is charged with fuel from a lower level and discharged by placing it in communication alternately with a vacuum pump and the atmosphere by means of two positively-actuated valves. According to this invention, the valve e serves the purpose of the two valves. The liquid-fuel admission valve h acts as an independent non-return valve and is closed by a float c acting through a lever i when the fuel reaches a certain level. The oil may be expelled from the vessel b by air under pressure as described in Specification 126,344.
Patent GB-201717-A (GB)
Title: Improvements in or relating to apparatus for retouching photographs and the like
IPC: G03D15/00
Filed: 1922-06-26
Abstract: 201,717. Reynolds, E. 0., and Bennett, A. June 26, 1922. Electric pencils.-In electric pencils for retouching photographs or the like, of the kind wherein vibratory movement produced by electromagnet apparatus is imparted to the pencilholder through a flexible wire, a swivelling connection is provided between the pencil-holder and the wire, and a clamp with a ball-and-socket attachment is provided for securing the box containing the electromagnetic apparatus to a desk, shelf, or other convenient place. The pencilholder d, Fig. 1, comprises a sheet metal tubular socket, split longitudinally at i and secured by solder or other means to a sleeve j, which is rotatable upon a rod h but is prevented from longitudinal movement thereon by a groove k near its end engaging a corresponding groove l in the rod. A short length of india-rubber tubing g encloses the outer end of the rod h and one end of the flexible wire c, thereby providing a resilient connection, and the other end of the wire is surrounded by a similar tube f to prevent damping of the vibrations of the wire through contact with the edges of the orifice e where it emerges from the box b containing the electromagnetic apparatus. The box b is attached to a member m provided with a ball n engaging in a socket o which forms part of a clamp p adapted to be secured upon the edge of a desk or the like by a clamping screw q. The socket o is formed in two halves and is provided with a bolt s and wing nut r to enable the box to be clamped at any angle allowing the flexible wire to hang free from contact with other objects. The apparatus is connected to an external battery by a flexible lead w.
Patent GB-458680-A (GB)
Title: Development process and developer for producing hardened images upon exposed silver halide-colloid emulsions
IPC: G03C5/315
Filed: 1935-06-18
Abstract: 458,680. Photographic developing processes. REDDIE, L. N., 6, Bream's Buildings, Fetter Lane, London.-(Naamlooze Vennootschap Nederlandsch Laboratorium de Spaamestad; 51, Nassaulaan, Haarlem, Holland) June 18, 1935, No. 17574. [Class 98 (ii)] Hardened images are developed in exposed silver halide emulsion layers by the use of a developer containing a dihydroxybenzene and a developer containing a trihydroxybenzene together or successively, the alkali being added to one or both developers or being applied in a separate bath. A low concentration of alkali, e.g. a ratio of potash to pyrocatechine of 1 : 1, may be used. In a developer comprising pyrogallic acid and pyrocatechine the ratio of the developing agents may be 1 : 15 and the proportion of potash to pyrocatechine 1 : 2 or 1 : 2À5. A suitable developer comprises 1 part by weight of potash, 2À5 parts of pyrocatechine, a suitable proportion of pyrogallic acid, and 150 parts of water. The layers may be first soaked in the alkali solution and then developed in a bath of pyrocatechine and pyrogallic acid which may be free from alkali, or in successive baths of these constituents. The pyrocatechine may be replaced by hydroquinone or chlorhydroquinone.
Patent GB-473160-A (GB)
Title: A new or improved pipe coupling
IPC: F16L17/03
Filed: 1936-06-26
Abstract: 473,160. Pipe joints. PULSOMETER ENGINEERING CO., Ltd., and CARTER, H. C. June 26, 1936, No. 17792. [Class 99 (i)] The flange D of a resilient sleeve C, located between a spigot B and a socket A, is clamped against the end of the socket and the spigot is secured to the sleeve by means including one or more resilient members in such a way that there is no metallic contact between spigot and socket. The flange D is secured to lugs A3 on the socket by bolts F and a cover plate E, and the flange B<1> of the spigot is secured to flange D by bolts G each provided with a flanged resilient sleeve H. In a modification the spigot and socket members are screwed to the pipes and the flange of the resilient sleeve L, Fig. 4, is secured by a nut M having an extension M<1> with an internal flange which compresses a washer N against a flange K<2> on the spigot.
Patent GB-191089-A (GB)
Title: Improvements in or connected with impregnated fabrics for frictional and wearing purposes
IPC: D06N7/04
Filed: 1921-07-01
Abstract: 191,089. Frood, H. July 1, 1921. Clutches, friction.-A mixture of dammar gum and rubber, preferably in the proportions of two to one respectively, is used to impregnate fibrous materials to form friction members for clutches. Other binding-agents may be added to the dammar gum and rubber, for example those described in Specifications 4627/09 and 164,772, phenolaldehyde condensation products, glue, casein, chloronaphthalene substitution products, and sodium or potassium silicate. Solvents such as linseed or tung oil with driers, or naphtha, benzol, &c. are used. The binder may be incorporated in the fabric by " frictioning " or by usual methods, and the fabric subsequently air dried and stoved. Reference has been directed by the Comptroller to Specification 17253/00, [Class 140, Waterproof &c. fabrics].
Patent GB-761174-A (GB)
Title: Improvements in or relating to apparatus and method of combining sheets of paper
Inventor: HOYT EDWIN R
Filed: 1954-06-18
Abstract: 761,174. Grinding paper. DORR-OLIVER Inc. June 18, 1954, No. 17935/54. Class 60 [Also in Group VIII] Webs of paper 7a, 4a, Fig. 13, are ground along their edges and adhered with a lap joint. The grinding-wheel 73, Figs. 1A and 8, rotates with the feed of the paper, e.g. at 30 times its speed. The paper is drawn. over a rod 163 received in a slot 176 of a bar 162 clamped in a groove in a table top 71 by turning a grooved rod 164, cam-surface of which co-act with pins 169. The rod 163 may be such that dust does not tend to collect thereon, e.g. of chromium plated metal, hard glass, or diamond, an exhaust pipe 179 removing dust. The grinding-wheel 73 is supported on beams 74 &c. pivoted at 77 and pressed by spring action at 96 &c. against set-screws 84 which contact accurately-machined faces 83 of legs of the beams 74. A dresser-wheel may be secured to the beams 74 when needed for dressing the grinding-wheel 73. The wheel 73, which may be of resin-bonded fine-grain grit, may be raised from the paper by an eccentric mounting 108 &c.
Patent GB-1390556-A (GB)
Title: Process for the preparation of methyl thionophosphonic acid esters
Inventor: SEHRING R
IPC: C07F9/40
Filed: 1972-04-18
Abstract: 1390556 Methylthionophosphonic acid esters BOEHRINGER INGELHEIM GmbH 18 April 1972 [19 April 1971 2 Feb 1972 7 Feb 1972] 17954/72 Heading C2P Compounds of Formula I where X, Y and Z are H, Cl, Br, I or alkyl or Z is CN, alkylthio, alkylsulphinyl, alkylsulphonyl or alkoxycarbonyl or Z is carbamoyl or sulphamoyl which may be N-mono- or disubstituted and R is alkyl or a radical of Formula II are prepared by reducing a compound of Formula III with zinc and an organic acid at a temperature whereby a compound of Formula I is obtained. The organic acid may be a C 1-4  aliphatic carboxylic, such as formic, acetic or propionic acid. The reaction is preferably carried out at 50 to 120 C. and in the presence of an inert organic solvent. The starting materials of Formula III may be prepared by reacting chloromethylthionophosphonic acid dichloride with an alcohol or phenol to produce an O-R-chloromethylthionophosphonic acid chloride, which may be isolated, and reacting this with phenol or sodium phenolate or a suitably substituted derivative thereof. The compounds of Formula I have pesticidal properties or may be used as intermediates in the preparation of pesticides.
Patent GB-952334-A (GB)
Title: Process for the manufacture of esters of xylitol and their derivatives having surface active properties
IPC: C11C3/04
Filed: 1960-05-20
Abstract: Esters of xylitol having surface active properties are made by reacting in liquid phase a glyceride with xylitol in the presence of a carbonate, alkylate or phosphate of an alkali metal as catalyst, at a temperature of from 20 DEG C. to 120 DEG C., and for a period of time from 6 to 12 hours. The reaction may be effected in an inert organic solvent, such as a tertiary aliphatic amine, heterocyclic amine or an amide, N,N-dimethylformamide and dimethyl sulphoxide being preferred. The glycerides may be naturally occurring fatty substances of animal or vegetable origin, or synthetic fatty substances, either hydrogenated or non-hydrogenated. The ester of xylitol may be thereafter condensed with ethylene oxide, preferably at least 15 moles of ethylene oxide per mole of xylitol ester being used. An example describes the reaction of oxen's tallow and xylitol. Cottonseed oil-xylitol, xylitol stearate and palm oil-xylitol are also mentioned.ALSO:A product having good emulsifying properties is made by reacting an ester of xylitol (made by reacting a glyceride with xylitol) with ethylene oxide, the reaction being discontinued when absorption of ethylene oxide by the ester is complete. It is preferable to employ at least 15 moles ethylene oxide per mol of xylitol ester. In examples, oxen's tallow is reacted with xylitol and the product is treated in an autoclave with 30 moles of ethylene oxide per mole of xylitol ester at 90-100 DEG C. in the presence of potassium hydroxide, or with 20 moles of ethylene oxide per mole of xylitol ester at 130 DEG C. in the presence of sodium hydroxide.
Patent GB-530849-A (GB)
Title: Improvements in or relating to engines for liquid or gaseous working fluid
IPC: F04B45/04
Filed: 1939-06-20
Abstract: 530,849. Rotary engines, pumps and meters. BENNET, C. W. H. D. June 20, 1939, No. 18018. Convention date, July 2, 1938. [Class 110 (ii)] A casing 42 of rectangular cross-section encloses a strip 27 'of the same width as the casing and making fluid-tight contact between its edges and the casing walls and a revoluble and rigid helix 25. Rotation of the helix causes the wavelike deformation of the strip to move along the casing and the spaces 42 become the chambers of a pump, prime mover or metering device. An equal strip may lie against the opposite side of the helix. The chambers on opposite sides of the strip or strips can operate upon separated fluids. If the strip is shortened relatively to the helix, it will not be able to lie closely to the helix in the troughs and the capacity of the working chambers is thereby variable. Two helices may be rotated oppositely in unison and operate upon a single strip of double width or they may operate on independent strips of single width providing a machine with three separate sets of working chambers. In Fig. 16, hot and cold water enter at 101, 102 and mix in the space 123. A thermometric device 117 controls a plate 121 by which the effective lengths of the two strips 105, 106 are varied so as to maintain a constant temperature in the mixing chamber. The convolutions of the helix may vary so as to produce working chambers of progressively increasing capacity for the expansive working of a power fluid or of decreasing capacity for compressive working. Similar effects are produced by a helix made of a rod of varying diameter. A compressor followed by an expansion device may be used as an I.C. engine. Positively operated, the device may be used for producing a fluid flow for a jet-propulsion device. The device may be adapted for delivering measured quantities and for securing a desired ratio between the rates of flow of two separate fluids. The Specification as open to inspection under Sect. 91 states that the strip may be formed of metal strip wound in a helix of shallow rectangular cross-section and such strip may be alternated with a rubber packing strip. It may also be built up of transversely arranged sections of metal faced rubber. This subject-matter does not appear in the Specification as accepted.
Patent GB-469854-A (GB)
Title: Improvements in or relating to air humidifying apparatus
IPC: F24F6/06
Filed: 1936-06-29
Abstract: 469,854. Moistening air. LIPTON, B. June 29, 1936, No. 18034. [Class 55 (ii)] An air humidifier comprises an inverted frustum of a cone 15 dipping into liquid in a container 1 and having a number of radial tubes 16 at its upper end through which liquid is ejected on to one or more stationary gauze &c. screens 17 coaxial with the cone, an annular air inlet duct being constituted by a shroud 8 and a cover 5 for a driving motor 4, so that air passes radially outwards through the screen zone. The operating unit is supported by legs 11 with rubber feet 12. The liquid which may be water, perfume, or disinfectant, may be controllably supplied to maintain a constant level in the container. In a modification an upper section of the container is spaced from a lower section by a rubber &c. gasket and has a number of inwardly extending air intake ducts. Vanes are associated with the liquid outlet tubes to assist the delivery of air. The humidifier may be incorporated with other apparatus, e.g. a standard lamp.
Patent GB-1241397-A (GB)
Title: Improvements in or relating to the production of p-doped zones in semiconductor monocrystals
IPC: C23C16/40
Filed: 1970-04-16
Abstract: 1,241,397. Semi-conductor devices. SIEMENS A.G. 16 April, 1970 [17 April, 1969], No. 18088/70. Heading H1K. A P-doped zone is produced in a N-type germanium crystal by masking the crystal surface with aluminium oxide by pyrolysis of an organic compound of oxygen and aluminium. A chemically polished germanium crystal is supported in a reaction vessel and is rotated by a motor in a stream of vaporized aluminium isopropylate, secondary butylate, or acetyl acetonate in a carrier gas, e.g. argon or nitrogen; the proportions of gas and vapour being controlled by flow meters; and the crystal is HF heated, so that decomposition of the organic compound produces a layer of amorphous aluminium oxide on the crystal (Fig. 1, not shown). A window is photo-etched therein using hot concentrated phosphoric acid, a gallium dopant is diffused therein, and the remaining aluminium oxide is etched off using hot concentrated phosphoric acid (Fig. 2, not shown). The process is applicable to double diffused germanium, silicon, and A<SP>III</SP>B<SP>V</SP> semi-conductor crystals.
Patent GB-1143153-A (GB)
Title: Pressure responsive device
IPC: H01H35/34
Filed: 1967-04-19
Abstract: 1,143,153. Pressure switch. DRESSER INDUSTRIES Inc. 19 April, 1967 [12 May, 1966], No. 18095/67. Heading H1N. The pressure range of a pressure responsive control device is altered by replacing a unit which comprises a piston 22 movably mounted in and radially spaced from its stepped cylinder 24 by a spring spider 26. The piston 22 is acted on by a rubber diaphragm 34 which closes a passageway 10 of the housing. The force transmitted to the piston is a function of the area of contact between the piston and diaphragm and thus by providing units having different diameter pistons, different pressure ranges can be provided. The piston acts on a switch by means of a spring biased disc 38 and rod 48. The diaphragm 34 is sealed in position by an 0-ring 36 clamped by bolts 18.
Patent GB-638521-A (GB)
Title: Improvements in or relating to electron multipliers
Inventor: BULL CABOT SEATON
IPC: H01J43/06
Filed: 1947-07-10
Abstract: 638,521. Electron multipliers. ELECTRIC & MUSICAL INDUSTRIES, Ltd. July 10, 1947, No. 18229. [Class 39 (i)] An electron multiplier comprises a cathode 1, Fig. 1, which emits electrons from opposite sides thereof, a pair of secondary emissive electrodes 4 for multiplying the two electron streams, a single secondary emissive electrode 5 for further multiplying both secondary streams and a final collector electrode 6. Control grid 2 and accelerating grid 3 are provided, electrodes 4 are of plane plate form, electrode 5 is a V-shaped plate and anode 6 is a V-shaped grid. A circular shielding electrode 7 surrounds the other electrodes. In another form, Fig. 2, there are four multiplying stages, the first and third consisting of L-shaped electrodes 8, 10, the second of a plane electrode 9 and the fourth of a V-shaped electrode 11. A V-shaped grid 12 again acts as a final collector. The shield 13 is elongated as shown. There may be more than four multiplying stages. The Provisional Specification describes in addition in general terms a form similar to that of Fig. 2 and suggests that only three multiplying stages may be used.