baber/WOPTO huggingface dataset:
Patent GB-1508763-A (GB)
Title: Mixing tap
IPC: B29B7/32
Filed: 1977-02-17
Abstract: 1508763 Valves P S VON CORPON 17 Feb 1977 [25 Feb 1976] 06733/77 Heading F2V Seals between a two part spherical control member 25, 26 and body parts 8, 9 of a mixing tap have the forms of flexible lips (43) Fig. 9 (not shown) and tongues (48). The mixing tap handle operates a valve 29 via a screw 32 to control flow from mixing chamber 36, and regulates hot and cold flows to the chamber by transverse movement between 28<SP>1</SP> and 28<SP>11</SP>.
Patent GB-609083-A (GB)
Title: Improvements in or relating to photographic cameras
IPC: G03B9/42
Filed: 1946-03-05
Abstract: 609,083. Photographic shutters. KODAK, Ltd. March 5, 1946, No. 6861. Convention date, Dec. 8, 1944. [Class 98 (i)] A sliding plate camera shutter comprises a base-plate 1 having guideways 2 and an exposure aperture 6 (Fig. 2, not shown); two shutter-plates 4, 5 arranged to slide face to face in the guideways and drawn towards a rest position by springs 20, 26; a releasable latch connection, which may consist of a spring arm 16 on plate 4 and a projection 24 on plate 5, causing the plates to be moved simultaneously to the left by operating a trigger 33 to set the shutter; means for releasing the latch connection, as by projection 51 raising end 17 of spring arm 16 clear of projection 24, to allow the plate 4 to return to its rest position, opening the exposure aperture; a latch connection 44, 48 between the second shutter plate 5 and a lever 39 moved by the trigger as by a pin 41 engaging in an annular groove 36; and means, as lugs 11 on plate 4 engaging spring arms 28, 29 on plate 5 which project through cut-out portions in the plate 4, for releasing the latch to allow plate 5 to follow plate 4 and close the exposure aperture. As described, the setting action brings an aperture 22 in plate 5 into coincidence with aperture 6 in the base-plate and release of plates 4, 5 successively open and close this aperture by bringing aperture 8 in plate 4 into and moving aperture 22 out of register therewith. For bulb exposures, the tail of a spring latch member 31 is depressed by a rotatably mounted eccentric (Fig. 7, not shown) which prevents the projections 11 from freeing the latch edge 44 from the latch edge 48 on lever 39 and thus preventing closure of the exposure aperture until the trigger is released. A collar 38 is provided on the trigger shaft to allow the use of the double exposure prevention device described in Specification 599,819.
Patent GB-379635-A (GB)
Title: Improvements in hand-operated cigarette-making machines
IPC: A24C5/44
Filed: 1932-03-08
Abstract: 379,635. Cigarette-making appliances. BOOTH, R. N., 132, Great Portland Street, London. March 8, 1932, No. 6931. [Class 130.] In a hand-operated appliance comprising an endless apron f passing around rollers d, e mounted one in each half of a hinged casing a, b, cover-plates h are provided to close the ends of the casing whether the latter is open or closed, in order that the cigarettes .may be evenly packed right up to the ends. As shown in the Figure, the plates h are provided with slots h<1> engaged by the axles of the rollers d, e, so that they limit the extent of opening of the casing. Flanges g on the end walls of the casing members prevent the rollers from being pressed in contact with each other when the casing is closed. The longer walls of the casing may be stiffened by ribs. In a modification, each of the endplates is integral with one of the halves of the casing and overlaps the other half.
Patent GB-366316-A (GB)
Title: Safety razors
IPC: B26B21/16
Filed: 1931-03-06
Abstract: 366,316. Safety razors. GELL, J., 123, Upper Tollington Park, Stroud Green, London. March 6, 1931, No. 6952. [Class 30.] In a safety razor wherein the clamped .blade may be removed without fully separating the main parts of the razor, the blade, Fig. 4, has a central transverse slot p to accommodate an oblique clamping screw b on the clamping plate a. The guard h is rotatably mounted on the handle d which has pinned to it at f a clamping nut e fitting in a recess in the guard, and the end of the guard is engaged by a longitudinal rib c on the clamping plate which forms a stop for the blade and prevents relative rotation of the guard. The blade has projections q extending beyond the holder at either side to facilitate insertion. To facilitate clearance of lather the guard teeth are opened out to a knife-edge at m near the cutting edge of the blade, the clearance being bevelled down towards the outer face of the guard so as not to lessen its bearing surface.
Patent GB-1598111-A (GB)
Title: Heart valve prosthesis
IPC: A61F2/06
Filed: 1978-02-22
Abstract: The fabric consists of multifilament yarns of a synthetic material. During production, the fabric is subjected to several shrinking operations by compression and crimping, which are intended to give it an anisotropic elastic flexibility close to the mechanical properties of a natural tissue. The yarns comprise curls which are situated in planes parallel to the fabric, and they open out in the interstices so as to make spaces promoting the growth of natural tissues. Application to replacing cardiac valves.
Patent GB-488672-A (GB)
Title: Improvements in or relating to starch products
IPC: C08L3/02
Filed: 1937-03-09
Abstract: Starch is heated in water in the presence of a disintegration inhibitor to a temperature sufficient to distend the granules until the crosses seen through crossed Nicol prisms disappear, and the heating is discontinued before the bulk of the granules have disintegrated.  The granules may then be dried.  Suitable inhibitors are soaps, sulphonated tallow, vegetable oils or alcohols, and hydrogenated phenols or naphthalene.
Patent GB-1203342-A (GB)
Title: A mat article of single crystal alpha-alumina fibers
Inventor: SHYNE JAMES J
IPC: C30B25/00
Filed: 1968-02-13
Abstract: 1,203,342. α-Alumina whiskers. GENERAL TECHNOLOGIES CORP. 13 Feb., 1968, No. 7003/68. Heading CIA. A mat of interconnected groups of α-Al 2 O 3  single crystal fibres, each of said groups containing a plurality of fibres connected at a common point and having at least some of the fibres enmeshed with the fibres of another group or groups, the common points of the individual groups being spaced apart at one surface of the mat, the other surface of the mat being covered with the separate enmeshed fibres, is made by passing H 2 /water vapour over a melt of aluminium in a ceramic receptacle provided with a loosely fitting cover of ceramic material. The temperature of the melt may be 2200-3500‹ F. but preferably the melt is heated at a steadily increasing temperature between 2500-3100‹ F. during a run of about one hour. In the preferred embodiment, H 2  gas containing less than 50 p.p.m. water, is initially passed at a rate of 0À01-0À06 cu. ft./ sec. for about 10 minutes and the rate is then reduced to 0À001-0À003 cu. ft./sec. and a water content increased to 300 p.p.m. In the final growth stage the hydrogen rate is further decreased to 0.0001 cu. ft./sec. and the water content increased to 3000 p.p.m., although up to 40,000 p.p.m. is permissible. The product is formed on the cover and yield may be enhanced by using oxides of Al, Si, Fe, Ti, Zr, Cr or Co in the manufacture of the ceramic material. The density of mat varies with the distance between the said cover and the aluminium charge and with the metallic aluminium content of the cover. Secondary fibres may be formed amongst the enmeshed fibres and the mat may be embedded in plastics, ceramic or metal materials.
Patent GB-307301-A (GB)
Title: Improvement in heat treating furnaces
IPC: C21D9/00
Filed: 1929-03-04
Abstract: 307,301. Breaker, H. O. March 3, 1928, [Convention date]. Resistance furnaces.-In an electric furnace for heating metal parts in a non-oxidizing atmosphere, of the kind having a vertically movable chargesupporting hearth 7 adapted to make a gas-tight joint with an aperture in the bottom of the furnace, means are provided for reducing the transmission of heat to the seal 16, and for condensing and collecting moisture from the furnace atmosphere. The furnace walls 2 and roof 3 are formed of heat-insulating material lined with vitreous brick and covered with a metal shell 4, the latter having a downwardly extending flange 13 which makes joint with the sand trough 15 welded to a metal shell 14 underlying the furnace bottom. To render the furnace gas-tight, all joints and seams in the shells 4, 14 are welded. Between the charge support 7 and the shell 14 is arranged heat-insulating material 8 which is retained in place by metal plates 17 rounded at their points of contact with the shell 14 and having flanges 18 by which they are secured to one of the beams supporting the hearth by bolts 20, Fig. 5. The flange 13 is protected by a series of angle-plates 21, the horizontal webs b of which are formed with lugs' e with which engage bolts 22 cooperating with brackets 23 welded to the shell 4. Asbestos plates 24, supported by pins 25, are disposed between the flange 13 and the vertical webs a of the plates 21. The hearth 7, 8 is mounted on a wheel truck 9 which is raised and lowered by an elevator platform, the hearth being held in its raised position by pivoted stops 55 operated by hydraulic cylinders 59 and formed on their upper surfaces with guideways in which wedges 56 are movable by hand-wheels 58. A pipe 61 for the supply of any desired gas passes through the roof 3. To maintain the furnace atmosphere dry, the leads to the resistance heating elements, a thermo-couple, and a fuse are, at the point where they pass through the wall 2, enclosed in condensing chambers which communicate with the interior of the furnace and project outwardly from the wall; the condensate collecting in these chambers is taken off through valved drain-pipes.
Patent GB-665753-A (GB)
Title: Improvements in milking machines
IPC: A01J5/04
Filed: 1949-03-15
Abstract: 665,753. Milking machines. GASCOIGNES (READING), Ltd., and KINGSTON, J. A. March 9, 1950 [March 15, 1949] No. 7049?49. Class 84. A portable pneumatic milking machine mounted on a wheeled chassis has two horizontal arms 29, 32 supported for pivotal movement on uprights 30 and each carrying two teat clusters and their associated pulsators 40, 41. The vacuum is applied to the teat cups through milk pipes 42 and the pulsator vacuum through the arms, which are hollow. The milk from each teat cup cluster is delivered to containers 46 which actuate yield measuring devices 47, the whole assembly being mounted on the upright 30 for movement therewith. The milk is delivered to common containers 50 and may then be passed either direct or through cooler 59 to churns 15. The milk flow is maintained in the system by applying controlled vacuum, and to this end the churns are also under vacuum. The source of vacuum may be by a trailing hose 71 or self contained. Water is supplied to the cooler through hose 73. The tubular chassis forms part of the vacuum and water circuits. Self-contained power drive may be fitted. According to the Provisional Specification the milk receiver and vacuum cooler may be constructed as described in Specification 604,157, the teat cup cluster as in Specifications 604,157 and 648,455. Only one swing- able arm (29, 32) may be provided.
Patent GB-403838-A (GB)
Title: Process for the manufacture of unsaturated ketones
IPC: C07C45/28
Filed: 1933-03-08
Abstract: The oxidation of cyclo-olefines containing the grouping<FORM:0403838/III/1> in the ring by means of selenium dioxide or selenious acid to give unsaturated ketones may be effected by subjecting the components to irradiation, e.g. with ultraviolet light.  A solvent for the oxidizing agent may be present, such as water, methyl alcohol, ethyl alcohol or propyl alcohol.  The selenium formed is separated by filtration and the products isolated by distillation.  An example is given of the preparation of verbenone by exposing a solution of a -pinene and selenium dioxide in ethyl alcohol to direct sunlight or to the light from a mercury vapour lamp.ALSO:Unsaturated cyclic ketones are prepared by oxidizing cyclo-olefines containing the grouping <FORM:0403838/IV/1> in the ring with selenium dioxide or selenious acid.  The reaction may be effected in an open or closed vessel by heating the components together or by subjecting them to irradiation, e.g. with ultraviolet light, and may take place in a solvent for the oxidizing agent, such as water, methyl alcohol, ethyl alcohol or propyl alcohol.  The selenium formed is separated by filtration and the products isolated by distillation.  Examples are given of the conversion of (1) 1-menthene into menthene-1-one-6, whose thiosemicarbazone is described, (2) a -pinene into verbenone and b -pinene into a similar ketone, (3) dipentene into carvone, (4) 3-menthene into menthene-3-one -5, whose semicarbazone is described, and (5) cyclohexene into cyclohexene-1-one-3.  In the case of a -pinene, the oxidation is effected by heating it with selenium dioxide in the presence of water and alcohol, or by exposing its solution in alcohol containing selenium dioxide to irradiation with sunlight or to the light from a mercury-vapour lamp.
Patent GB-798215-A (GB)
Title: Arrangement for relieving electrode connections with respect to high-tension
IPC: H01J5/48
Filed: 1955-03-11
Abstract: 798,215. Discharge apparatus. STANDARD TELEPHONES & CABLES, Ltd. March 11, 1955 [March 13, 1954], No. 7232/55. Class 39(1). High-tension terminals of a discharge tube are arranged inside a metal sleeve, itself at a high potential, and having rounded rims, to prevent corona discharge. In the drawing, 1 is a high-tension rectifier whose heater leads are soldered to lugs 3 on an insulating plate 4 ; the conductors 6 and the h-t cable 7 are also attached to these lugs. The surrounding sleeve 5 is conductively connected to the h-t cable, so that its interior forms a field-free space. The sleeve 5 slides into a recess in a mounting plate 8 ; the plate may also have a notch for supporting the conductors 6.
Patent GB-1101886-A (GB)
Title: Telegraph systems
Inventor: MASON FREDERICK PERCIVAL
IPC: H04L25/40
Filed: 1966-02-18
Abstract: 1,101,886. Telegraphy. CREED & CO., Ltd. 18 Feb., 1966, No. 7234/66. Heading H4P. In a start-stop telegraph system the binary state of the stop element of each character is different from the binary state of the start element of the succeeding character, and the state of the stop element is chosen by control means at the transmitter. In one embodiment the code elements representing the character are inverted when the control is exercised. The inversion is detected at the receiver and is reversed so that normal start-stop signals are passed to the recorders. The inversion energizes an alarm, case shift, or other circuit at the receiver. The circuits for inversion and reversion are under the control of clock pulses synchronized with the distributers at the transmitter and receiver.
Patent GB-461525-A (GB)
Title: Improvements in safety razors
IPC: B26B21/32
Filed: 1936-03-10
Abstract: 461,525. Safety razors. GILLETTE SAFETY RAZOR CO. March 10, 1936, No.. 7261. Convention date, Sept. 9, 1935. [Class 30] In razors having a cap comprising two pivoted sections 24, the closing up of the parts and the clamping of the blade are effected by a spring 29. The sections are pivoted by means of lugs 25 to arms 22 forming part of a bar 19 pivoted to a slidable stem 18. When a milled disc 31 is turned, an eccentric pin 33 raises a tongue 27 and the stem 18 with the result that the bar 19 lifts up the blade and the sections 24 are thrown back, Fig. 4, owing to the contact of cam pieces 26 on the lugs 25 with the corners of the guard comb and the rising of the pivots. When the disc 31 is returned to former position, the spring pulls down the bar 19 and lugs 22 and the sections 24 fall inwardly with a snap and bend the blade into shaving position.
Patent GB-548097-A (GB)
Title: Improvements in and relating to holders for thermionic valves and like electronic devices
IPC: H01R33/74
Filed: 1941-06-11
Abstract: 548,097. Thermionic valve holders. BULGIN, A. F., and STOTT, H. T. June 11, 1941, No. 7360. [Class 38 (i)] A holder for a valve c with radial contact pins d comprises bayonet slots m to receive the pins and a spring acting on each pin to force it up into locking engagement with the undercut part of its bayonet slot. The spring preferably takes the form of a blade n associated with the bayonet slot m formed in a contact member l. The blade is secured to the member l by a rivet h that also serves to mount the member l on a base a. If the member l is of insulating material, the blade n constituted the contact. According to the Provisional Specification the springs n may be replaced by a single spring pressing on the envelope of the valve.
Patent GB-449232-A (GB)
Title: Improvements in or relating to the distant control of electric consumption apparatus
IPC: H02J13/00
Filed: 1934-12-21
Abstract: 449,232. Control systems for consumption apparatus. AUTOMATIC ELECTRIC CO., Ltd., Strowger Works, and ROSEBY, P. N., 57, Moscow Drive, Stoneycroft, both in Liverpool. Dec. 21, 1934, No. 7399/36. Divided out of 449,188, [Group XXXVIII]. [Class 38 (iv)] [See also Group XXXVII] High-frequency signals transmitted over electric supply mains are adapted through relays to switch off consuming units such as street lamps, and water heaters, which are switched on again after an interval by local control means. The signals are sent from generators HFG1, HFG2 over the neutral wire N of a three phase system. Water heaters such as WH may be controlled by signals of, for example, 500 frequency transmitted for 30 seconds, while street lighting units such as SL may be controlled by signals of 5000 frequency transmitted for ¢ second through the medium of a filter circuit FC preventing response to signals of lower frequency. A switching device of the type described in Specification 431,349, [Group XXXVII], may be used. The relay A responding to the water heater signals closes a circuit through a bimetallic thermostat B which bends away from the drum G so that the thermostat with its arm F and extension J are moved in an anticlockwise direction by a spring or by gravity against a stop. The extension J allows spring K to move from contact I to contact H where it is maintained by a magnet L. The current to the heater WH is thus switched off and a motor C started, this motor through reduction gearing and the drum G restoring the thermostat B, after a definite interval, to its normal position in which the motor is cut out and the heater circuit closed. The frequency generators HFG1, HFG2 may be of the type described in Specification 435,564, [Group XXXVIII].
Patent GB-429532-A (GB)
Title: Improvements relating to collapsible sliding gates, shutters, doors and the like
IPC: E06B3/92
Filed: 1934-03-08
Abstract: 429,532. Sliding gates, doors, shutters, &c. POTTER RAX GATE CO., Ltd., Shepperton Road, Islington, and COLEMAN, F. G., 104, Croydon Road, Anerley, both in London. March 8, 1934, No. 7417. [Class 45] [See also Group X] A collapsable steel shutter comprises a gate with vertical pickets B connected by lazytongs, with steel plates A connected to each picket or to each alternate picket and interlocking when the gate is extended, as shown in Fig. 3, to render the shutter draughtproof. The interlocking edges of the plates are fitted with rubber or composition strips C, D. The pickets are provided at top and bottom with guide members K for the plates, and the plates are indented at top and bottom to form projections K<1> which keep them spaced apart. Specification 223,790, [Class 20 (iii)], is referred to.
Patent GB-1492341-A (GB)
Title: Method of forming a highly permeable solid mass in a subterranean formation
IPC: C09K8/565
Filed: 1976-02-25
Abstract: 1492341 Consolidating earth formations; propping fractures HALLIBURTON CO 25 Feb 1976 7467/76 Heading E1F A method of forming a permeable solid mass in a subterranean formation comprises depositing in the formation a dispersion of particulate solids and a resin composition in a carrier liquid, the particulate solid material being comprised of a mixture of inert solids wich are coated by the resin composition and solids which are not coated by the resin composition wherein the uncoated solids are solid particles comprised of a homogenous mixture of a hydrocarbon wax and a polymer and are insoluble in the carrier liquid at ambient temperature; causing the resin composition to harden; and dissolving the uncoated solids. The dispersion is formed by introducing the particulate solids into a dispersion of the resin composition in the carrier liquid and is deposited between a gravel packing solids retainer and the formation or in a fracture for use as a propping agent. Preferably the resin composition is a urea-formaldehyde resin, an epoxy resin, a melamine resin a phenol-formaldehyde resin, a polyurethane resin, a polyester resin or a furfural alcohol resin; the carrier liquid is a liquid hydrocarbon e.g. diesel oil; the inert solids are sand particles; and the polymer of the uncoated solids is a copolymer of ethylene and vinyl acetate or of ethylene and ethyl acetate. The uncoated solids may be present in an amount of from 1-30% by weight of the particulate solid material.
Patent GB-776486-A (GB)
Title: Improvements in or relating to air stream direction indicator
IPC: G01P13/02
Filed: 1955-03-15
Abstract: 776.486. Fluid flow direction indicators. GARRETT CORPORATION. March 15, 1955 [March 24. 1954], No. 7506/55 Class 97(2) [Also in Group XXIX] An instrument for measuring or indicating the angle of an aircraft to its relative airstream in a predetermined plane comprises a pressure sensing head 15, Fig. 4, having a pair of sensing openings 26, 27 arranged at an angle to each other, servo control means (see Group XXIX) including a diaphragm 71, Fig. 3, responsive to the difference of pressures sensed by the openings and operative by means of a valve 84 to provide a regulated fluid pressure which acts on a power output stage 156 arranged to turn the sensing head in such a direction as to restore the pressures sensed by the openings to equality. Movement of the sensing head may be applied to a potentiometer for operating an indicator.