baber/WOPTO huggingface dataset:
Patent GB-601108-A (GB)
Title: Improvements in and relating to gauges
IPC: G01B5/20
Filed: 1944-08-10
Abstract: 601,108. Gauging' departure from standard form. HAUT, F.J. G. Aug. 10, 1944, No. 15261. [Class 106 (ii)] In a gauge for testing outlines including a " master " which serves as a guide for a dial gauge, the " master is embraced by two rollers or sets of rollers journalled in a carrier for the dial gauge, at least one roller or set of rollers being held against the " master " by a spring. The part under test, for example a, connecting rod (not shown) is,positioned on. pillars 17, 18 by means of adaptors 26, 27 located in its small and big ends respectively while the " master " 2 is secured to a base by dowel pins. The carrier 3 of the dial gauge 1. which may be provided with alarm signals, has an inner vertical roller, an outer sprung vertical roller and also a pair of horizontal rollers which run on a machined surface of the casing. The carrier is moved round the " master " by a cable 5 which passes round guide rollers and a hand-driven drum 6, eccentrically mounted and loaded by a spring 9. The adaptors 26, 27 are supported by sprung stems 17a, 18a which are restrained by a frame 30 which is pivoted to the rear of the base and may be adjusted by means of a cam and hand lever (not shown) in order to vary the height of the part under test relative to the dial gauge.
Patent GB-629486-A (GB)
Title: Improvements in and relating to methods of preparation of dimethyl silicone gums
IPC: C08G77/08
Filed: 1947-06-10
Abstract: A dimethyl silicone (dimethyl polysiloxane), preferably a liquid polymer having a methyl-to-silicon ratio of about 1.98 to 2, is treated with a sulphuryl halide to produce an elastic gum which may be compounded with fillers (such as titanium dioxide, lithopone, zinc oxide, talc ferric oxide) and accelerators (such as benzoyl peroxide) and heat cured to give an elastomer having rubber-like properties. The sulphuryl halide may be from 1 to 50 per cent by weight of the dimethyl silicone and the treatment may be at from room temperature (10 to 40 days) to about 150 DEG  C. (about 12 hours).  In an example about 600 parts of dimethyl dichlorosilane containing about 0.4 mol. per cent trichlorosilane were hydrolysed with water; to 200 parts of the dimethyl silicone were added 100 parts of sulphuryl chloride and the mixture was heated, first at 85 DEG  to 90 DEG  C. for 6 1/2 hours and then at 175 DEG  C. for 48 hours to give an elastic gum. 36 Parts of the gum were milled with 72 parts titanium dioxide and 0.72 parts benzoyl peroxide, pressed into a sheet first at 150 DEG C. for 10 minutes under 500 lbs./sq. inch and then at 200 DEG  C. for 48 hours. Specifications 586,188, 586,189 and 594,481 are referred to.
Patent GB-951193-A (GB)
Title: Improvements in low pressure discharge lamp
IPC: H01J61/067
Filed: 1960-05-02
Abstract: 951,193. Discharge lamps. GENERAL ELECTRIC CO. May 2, 1960 [May 11, 1959], No. 15325/60. Heading H1D. An elongated low pressure discharge lamp operated by A.C. contains mercury vapour, an inert starting gas and an electrode structure at each end comprising an activated coiled tungsten filament 13 supported by inlead wires 11, 12, and conductive shields 14, 15 fastened to the inlead wires, the resistance and thermal mass of each filament 13 being such that the filament carries 100% of the discharge current on the cathode half-cycle and less than 50% on the anode half-cycle, the conductive shields carrying the balance of discharge current, and that an electron emission spot temperature in the range of 105‹ to 1200‹ C. is established in the filament when the lamp is supplied with current at the rated voltage. The resistance and thermal mass of each filament 13 are also so chosen that at starting the filament is stabilized at a temperature in the range of 850‹ to 1050‹ C. in a time interval of less than 1 second after the application of the filament heating voltage. The shields 14, 15 are laminar and substantially L-shaped and are made of metal such as iron, tungsten, molybdenum, nickel or nickel-plated iron which can be activated by deposition thereon of activating material, such as barium or barium oxide, from the filament. The area of the shields is sufficiently large to produce a low anode voltage drop when conducting discharge current on the anode half-cycle. The shields are located at a distance from the emission spot surface of the associated filament of not less than approximately 3 mm. Each filament can comprise a double coiled filament 22 provided with a fine triple coiled overwind 21 of tungsten wire coated with alkaline earth oxide activating material. The coiling can be effected on molybdenum mandrels. Dimensions are stated. The inert starting gas can consist of a mixture of argon and neon at a total pressure of between 1.5 and 3 mm., preferably 2 mm., neon being present in a proportion of less than 50%, preferably 25-40% or 35%. The mercury pressure is a few microns. The envelope of the lamp is coated internally with a phosphor which may be treated to remove surface metallic ions, such as antimony and manganese activators, in order to prevent attachment of mercury to the phosphor surface. The envelope wall may be treated to remove alkali materials therefrom to make it a better insulator and to leave less material for reaction with the phosphor surface or to serve as attachment points for mercury. Alternatively a potential can be applied to the envelope wall with such polarity that all the electropositives such as sodium are moved to the outer surface.
Patent GB-221853-A (GB)
Title: A plaster and a process of controlling the setting of plaster, an accelerator therefor and a process of making such accelerator
IPC: C04B11/00
Filed: 1923-06-12
Abstract: 221,853. Marks, E. C. R., (Wiggin's Sons Co., H. B.). June 12, 1923. Plaster compositions consist of a mixture of anhydrous plaster of Paris and an " accelerator " consisting of plaster of Paris which has been mixed with insufficient water to set it. By regulation of the amount of water in the accelerator, the time of setting of the composition may be controlled. The composition may be mixed with cement, or magnesium oxide or magnesium chloride, or both.
Patent GB-751544-A (GB)
Title: Improvements relating to electrical indicating instruments
Inventor: AINSWORTH EDWARD JAMES
IPC: G01R11/02
Filed: 1954-05-25
Abstract: 751,544. Indicating-apparatus. RECORD ELECTRICAL CO., Ltd. May 25, 1954, No. 15351/54. Class 106 (4). An electrical indicating-instrument has zeroadjusting means comprising a rotary member 14 which is coaxial with the pivots of a rotatable moving system and has an eccentric pin 13 engaging a slotted arm 11 turning about a parallel pivot 12 and causing rotation of an arm 7 pivoted coaxially with the pivots of the system and carrying the spring 5 controlling its deflection. The slot in the arm 11 engages an arm 10 on a disc 9 which turns together with another disc 8 carrying the arm 7 to which one end of the spring 5 is attached, the other end being attached to a lug 6 of the pointer assembly. Reference has been made by the Comptroller to Specification 577,729.
Patent GB-1475187-A (GB)
Title: Substituted azetidinones
IPC: C07D205/095
Filed: 1975-03-21
Abstract: 1475187 Substituted azetidinones BEECHAM GROUP Ltd 21 March 1975 [6 April 1974] 15353/74 Heading C2C Substituted azetidinones of the formula where R is a benzyl or phenoxymethyl group, R 1  is an optionally substituted alkyl or alkenyl group which contains no unprotected hydroxy or carboxylic acid groups, and R 2  is H or an esterified carboxylic acid group, are prepared by reacting a compound of formula with a thiol R 1 SH, in the presence of an acid catalyst.
Patent GB-932116-A (GB)
Title: Improvements in and relating to retainer clips
Inventor: PARKIN LESLIE
IPC: F16L33/035
Filed: 1960-05-02
Abstract: 932,116. Band Clips. CARR FASTENER CO. Ltd. April 12, 1961 [May 2, 1960; Sept. 29, 1960], Nos. 15412/60 and 33535/60. Class 44. A band clip comprises a strip of material 1 formed at its ends with a projection 2 and hole 4 respectively, and with abutments 5, the latter being engaged by a tool for tensioning the clip until the projection 2 engages within the hole 4. The strip 1 may comprise two parts 1a, 1b connected together by a hook and slot fastening 7, 8, whereby the length of the strip may be adjusted.
Patent GB-1512475-A (GB)
Title: Aminoglycosides
IPC: C07H15/26
Filed: 1976-04-15
Abstract: 1512475 Aminoglycosides PZIZER Ltd 12 April 1977 [15 April 1976] 15425/76 Addition to 1464401 Heading C2C Compounds of the general formula (R<SP>1</SP>=H, C 1-4  alkyl; R<SP>2</SP>=OH, NH 2 ; R<SP>3</SP>=H and R<SP>4</SP> = hexopyranosyl group containing at least two OH groups, or R<SP>3</SP>=pentofuranosyl group optionally linked to a hexopyranosyl group and R<SP>4</SP> = H; n = 4-6) and their salts are prepared by the method of the parent Specification. These compounds are antibacterials, and may be administered in the form of pharmaceutical preparations containing them in association with a carrier.
Patent GB-842654-A (GB)
Title: Apparatus for maintaining a constant level of liquid in a receptacle
IPC: G05D9/04
Filed: 1957-05-16
Abstract: 842,654. Regulating liquid levels. BARTON, M. July 21, 1958 [May 16, 1957], No. 15498/57. Addition to 750,870. Class 123(1) The apparatus for maintaining a constant level of oil in the crankcase of an I.C. engine described in the parent Specification is modified in that a cut-off valve 1 is connected in the oil supply pipe 2 between the oil container 3 and the crankcase 5, the valve being adapted to close as soon as the engine starts and to open when it stops so that oil is not fed to the crankcase whilst the engine is running when turbulence in the crankcase would affect the efficient operation of the apparatus. In the form shown the valve consists of a piston 6 having a through-bore 10 connecting the parts of the pipe 2 whilst the piston is in the end position shown. When the engine is started suction in the inlet manifold is communicated to the piston through a pipe 12 to move it against the action of a return spring 11 and so to cut off the oil supply. In a modification, the piston is withdrawn by a solenoid which is energised only whilst the engine is running.
Patent GB-272548-A (GB)
Title: Improvements in direction indicators for motor or other vehicles
IPC: B60Q1/34
Filed: 1927-06-13
Abstract: 272,548. Starker, H. June 11, 1926, [Convention date]. Road-traffic signals on vehicles.-A rectangular lamina 7 is eccentrically mounted on a spindle 5 before or behind a darkened plate 2 having an aperture 3, or between two such plates, so that on operation of electromagnets 9, 12 to rotate the lamina turning signals are given by the unobscured parts between the lamina and the plate. The lamina returns to the position shown in the Figure by reason of its eccentric mounting when the gears 8, 10 are disengaged on de-energization of the electromagnets. One or more internal lamps 13 illuminate the signal. The Specification as open to inspection under Sect. 91 (3) (a) comprises also the provision of a fixed lamina and a rotating apertured plate, and also a disc operable to obscure part of the signal when in the "straight ahead " position to form a " stop " signal. This subject-matter does not appear in the Specification as accepted.
Patent GB-440546-A (GB)
Title: Improvements in and relating to apparatus for making photographic copies
IPC: G03B27/32
Filed: 1935-05-29
Abstract: 440,546. Photographic projectionprinting apparatus. BRISCH, J., 37, Bergstrasse, Berlin. May 29, 1935, No. 15646. Convention date, May 30, 1934. [Class 98 (i)] Photographic projection-printing apparatus comprises a photographic camera, a reversing reflector housing attached thereto in place of the ordinary dark-slide by means of an adapter, and a focusing device attached to the reflector housing. As shown, a reflector housing 3 carrying a reflector 4 is attached to a camera 1 by an adapter 2. Attached to the housing 3 is a focusing device comprising a fixed part 7, a bellows 8, a slidable part 9 adjustable on the slide 10, and a focusing screen 11. The adapter 2, reflector 4, and slide 10 are hinged to the part 7 and the ends of the housing 3 can be folded in so that they may be collapsed. In exposure the focusing screen is replaced by the photographic paper.
Patent GB-593897-A (GB)
Title: An improved end bracket holder for electric lamps
IPC: H01R33/08
Filed: 1945-06-20
Abstract: 593,897. Lamp-holders. REVO ELECTRIC CO., Ltd., and FELTON, A. E. June 20, 1945, No. 15667. [Class 38 (i)] An end bracket holder of the finger manipulative release type for tubular electric lamps is formed of insulating material having a pair of straight parallel slots receiving the lamp pins, which are retained by a pair of bent resilient contact blades b having horizontal retention ledges b2 which support the pins c of the lamp. On insertion, the pins c force apart the contact blades b, and the retention ledges b<2> engage the pins c. The blades b are forced apart to release the lamp by a finger manipulative device in the form of a rotatable key d mounted in a bearing a<2> between the blades b and having a head d<2> of rectangular crosssection. In the Provisional Specification reference is made to a key-controlled member and to a removable key, which operate to release the lamp as described above.
Patent GB-830466-A (GB)
Title: Machine tools including copying fixtures
Inventor: AUSTIN KENNETH TALBOT
IPC: B23Q1/62
Filed: 1955-06-01
Abstract: 830,466. Copy - milling. NAPIER & SON Ltd., D. July 27, 1956 [June 1, 1955], No. 15746/55. Class 83 (3). A copying-machine comprises a platform 27 pivoted on a horizontal axis 28 and having work-, and pattern-holding means, means 36 for urging the platform about its axis, to engage the work and pattern with a tool and follower, means for traversing the platform, and means for feeding the platform transversely. The platform 27 is carried on a slide 4 which is traversed on a table 2 by hydraulic means incorporating a fixed piston 7, Fig. 4, a reversing valve 72, and a flow-control valve 77. The table 2 is fed by a piston 50 in increments determined by an adjustable metering valve 59, which permits a measured quantity of fluid to pass to exhaust at each actuation of a solenoidoperated valve 56, there being a by-pass valve 63 to permit rapid approach movements. The platform carries two turbine-blade blanks 30, one convex-, and one concave-side uppermost, and a corresponding pattern 31. The cutter 41 and the follower 42, having the same effective contact surface, are mounted on a support 43. In operation, the table 2 is fed at its fast approach speed until a switch on the table operates the valve 63, to introduce the intermittent feed, and a valve 67, to actuate the piston 36, thus moving the platform into working position. The slide 4 then reciprocates and, at each end of the travel, the table 2 is advanced by microswitches 84 actuated by stops 82, 83. The stop 83 is moved progressively by a cam 86 to impart a desired shape to one end of each blade. The table is lowered by actuation of a further switch when machining is complete. Work-holders.-Thin blades may be mounted on beds shaped to fit their reverse surfaces. Framings.-A wall 32 surrounds the platform 27 to collect lubricant.
Patent GB-1125997-A (GB)
Title: A composition for use in the preparation of a nutrient medium for the cultivation ofbacteria
Inventor: POTUZNIK VLADISLAV
IPC: C12N1/38
Filed: 1967-04-06
Abstract: 1,125,997. Bacteriological testing: nutrient media. USTAV SER A OCKOVACICH LATEK, OBOROVY PODNIK. April 6, 1967, No. 15775/67. Heading C6F. A composition for use in the preparation of a nutrient medium for the cultivation of bacteria comprises a cation exchange material and a citrate anion. Preferred compositions comprise 9-18 parts of a cation exchange material in the hydrogen cycle, at least 1 part of a cation exchange material in the magnesium cycle and 1-10 parts of the citrate anion (provided by sodium, potassium or ammonium citrate), all parts being calculated on the weight of the citrate anion (C 6 H 5 O 7 <SP>-3</SP>). Glass beads or crushed glass may be included in the composition as an anticoagulant in an amount exceeding the total weight of the other components. The composition may be dispersed in blood or a mixture of blood and other body fluids (specified) of which the bacteria are to be cultivated and the dispersions buffered to a pH of 5.0-6.5. A solid medium is obtained by adding agar or allowing the blood to clot e.g. by the application of heat.
Patent GB-702945-A (GB)
Title: Improved means for conducting the flow of liquid fuel for feeding burners of gas turbine engines
IPC: F02C7/22
Filed: 1951-07-03
Abstract: 702,945. Gas turbine plant. DOWTY EQUIPMENT. Ltd., PEARCE, A. W., and HISCOX, A. G. June 30, 1952 [July 3, 1951], No. 15790/51. Class 110 (3). [Also in Group XI] A burner gallery for conducting liquid fuel to a plurality of burners 14, Fig. 1, secured around and projecting into the combustion chamber of a gas turbine engine, comprises a junction box 32 for each burner 14 and a junction box 40 ,connected with the delivery line, a rigid straight connecting pipe 28a held captively at opposite ends by pipe sockets in each adjacent pair of junction boxes, and flexible sealing means between each pipe socket and the pipe 28a held therein .to provide a non-rigid sealing engagement whereby the burner gallery can accommodate itself to thermal expansion or contraction of the combustion chamber. The burners shown are of the spill type, so that return flow pipes 25a are .also connected between the junction boxes. The pipes 25a, 28a project 'loosely into the junction box 40, Fig. 5, being sealed with respect thereto by rubber or like sealing rings 41 housed in grooves 42, and are connected in a similar manner to each junction box 32. The box 40 connects the fuel delivery line 24 with the pipes 25a, and the pipes 28a with the fuel return line 29. Fuel is supplied from the pipes 25a through a bore 35, Fig. 3, in each junction box 32 and is delivered through a passage 26 and tangential passages 19 to the swirl chamber 18 of the burner 14 to which the box 32 is bolted. An annular spill orifice 21 leads from the chamber 18 through diffusing and spill chambers 22, 23 and a return passage 27 to a bore 36 in the junction box 32 into which a pair of return pipes 28a extend. In an alternative construction the return pipes of the gallery are disposed coaxially within the delivery pipes. According to the Provisional Specification the ends of the pipe lengths of the gallery may each be formed with a spherical enlargement for engagement with a part spherical surface of the wall of the associated junction box, to permit relative universal movement between the pipe and the junction box.
Patent GB-577554-A (GB)
Title: Apparatus for the determination of the fluidity of molten metals
IPC: B22D35/00
Filed: 1944-08-18
Abstract: 577,554. Testing physical qualities. INTERNATIONAL MEEHANITE METAL CO., Ltd., and CURRIE, E. M. Aug. 18, 1944, No. 16816. [Class 106 (ii)] The fluidity of molten metals and alloys is tested, prior to casting, by apparatus comprising a reservoir, into which test metal is poured, and a spiral runway connected to the reservoir and provided with a plurality of outlets to indicate the fluidity of the metal. A sand mould in two halves 1, 2 comprises a well 7 to receive the test metal connected to a second well 5 fitted with a strainer core 6. A spiral runway 3 with ten outlets 4 is open to the well 5. Outlets prior to the one which indicates suitable fluidity for a particular casting may be closed. Provision may be made for altering the length and size of the runway.
Patent GB-126938-A (GB)
Title: Improved Process for the Manufacture of Leather.
Inventor: DORAN ERLING TRYGVE
IPC: C14C9/00
Filed: 1918-10-04
Abstract: 126,938. Doran, E. T. May 11, 1918, [Convention date]. Chrome and like mineral tanning; tanning with special chemicals.-Hides are hardened &c. by treatment with lead acetate. The hides after treatment, as in a chrome bath, are dried and placed in a bath containing a solution of lead acetate preferably at a temperature of 18-20‹ C. Acetic acid and barium acetate may be added. Before immersing in the acetate bath, the hides may be subjected to swelling in acids.
Patent GB-203282-A (GB)
Title: Improvements in frying pans
IPC: A47J37/10
Filed: 1923-06-21
Abstract: 203,282. Hughes, H. C. June 21, 1923. Frying-pans; bottoms; heating-surfaces, increasing.-The bottom of a frying-pan is formed with a series of concave-surfaced supports a' forming together a substantially flat surface for the food to be cooked, the undersides of the supports being recessed to form pockets a<3> to collect the flame gases. Gutters a, preferably all connected together, divide the supports. The pan has a handle B and a rest B<1> for engaging a suitable support.
Patent GB-829220-A (GB)
Title: Sewing machine with means for facilitating threading
IPC: D05B73/00
Filed: 1957-05-22
Abstract: 829,220. Sewing machines. SINGER MANUFACTURING CO. May 22, 1957 [June 14, 1956], No. 16243/57. Class 112 The casing of a sewing machine is formed in the head 12 with an opening 13 adapted to be closed by a removable face plate 14 hinged at one edge 15 to one side of the opening, said edge being provided with upper and lower arms 17, 18 carrying pintle pins 19, 20 and said opening having apertures 21, 22 for receiving said pins so arranged that the face plate can be removed entirely from the machine by lifting it upwards, the face plate bearing on its inner surface a pictorial representation 55 which is made available for inspection when the face plate is swung open upon its hinges.
Patent GB-529500-A (GB)
Title: Improvements in lubricating systems of internal combustion engines
IPC: F01M1/12
Filed: 1939-06-06
Abstract: 529,500. Forced lubrication. DAIMLER-BENZ AKT.-GES. June 2, 1939, No. 16249. Convention date, June 14, 1938. [Class 12 (iii)] To prevent aeration of the oil passing into the collector c from the sump r or pumped into it from a subsidiary collector b, a float valve h is fitted which closes the draw-off opening in the pipe n when the level is low and so prevents air being drawn in. Oil for circulation is taken from the collector c to the main supply d. A filtering screen q can be fitted over c.
Patent GB-1030927-A (GB)
Title: Method of making connections to semiconductor bodies
IPC: H01L23/485
Filed: 1963-04-25
Abstract: 1,030,927. Semi - conductor devices. WESTERN ELECTRIC CO. Inc. April 25, 1963 [June 29, 1962], No. 16268/63. Heading H1K. A connection is effected to an exposed portion of the surface of a semi-conductor body having an insulating layer over the remainder of the surface by coating both layer and exposed semi-conductor surface with a layer of a first metal, coating this first metal layer with a second, capable of uniting with the first to form a stable intermetallic material heating to form a resultant metallic layer including the compound which adheres to the semi-conductor but not to the insulating layer and removing the metallic residue from the insulating layer. In one embodiment (Fig. 2), an N-type silicon wafer 10 is subjected to a sequence of operations in which diffusion of boron and phosphorous through a silicon dioxide masking pattern produces an NPN structure. Layers of palladium and aluminium are then sequentially deposited over the oxide to contact the zones through apertures 15, 16. Heating to 750 C. causes interdiffusion of the metals, the resulting composite layer adhering to the silicon but not to the masking layer. The residue of the metals is removed from the surface of the mask and a gold electrode provided on the untreated face of the silicon completes the device. Germanium may be employed instead of silicon and gallium, indium, arsenic, and strontium instead of aluminium. Alternatives to palladium for the intermediate metallic layer include nickel, gold, iron, cerium, chromium, lanthanum and uranium.