baber/WOPTO huggingface dataset:
Patent GB-866246-A (GB)
Title: Temperature compensated cavity resonator
IPC: H01J25/24
Filed: 1959-03-26
Abstract: 866,246. Cavity resonators. VARIAN ASSOCIATES. March 26, 1959 [April 24, 1958], No. 10715/59. Class 40(8) A cavity resonator chamber, for use in stabilizing the frequency of an oscillator such as a reflex klystron, has a main wall 11, e.g. of "Invar" (Registered Trade Mark), and a wall 18, for temperature compensation of the chamber, comprising a rim portion 34 made of a material of relatively low coefficient of thermal expansion, e.g. "Invar", secured to the main body 11, and a central portion 33 made of a material of relatively high coefficient of thermal expansion, e.g. steel, the wall 33, 34 including thin annular flexible sections 36, 38 around the junction 40 of the portions 33 and 34 which flexes under temperature change to cause the central portion 33 to move within the chamber. The sections 36 and 38 are secured together along a surface lying on a cone. Adjustment can be made by making a cut 45 in the portion 33 near the section 36, or by shaving the surface 46, Fig. 5. Ribs 21<SP>1</SP> are provided on the wall 18 and the other wall 19. A tuner mechanism for changing the dimensions and hence the resonance frequency of the chamber is mounted in an aperture in the central portion 33 and comprises a circular tuning plate 23, a hollow cylindrical flexible bellows 24 seated at one end to the plate 23 and at the other end to an annular lip 25 on the hollow cylindrical extension 22 of the wall 18, a hollow cylindrical tuner screw 26 threaded into the extension 22, the inner end of the screw contacting the plate 23, a locking screw 27 secured to the plate 23, and a nut 28 on the screw 27 and co-operating with a ledge 31 on the inner surface of the screw 26 for drawing the plate 23 into engagement with the tuner screw 26. The extent of travel of the tuner screw 26 is limited by the lip 25. A pair of coupling holes 12, 13, which may be sealed with dielectric windows, communicate with input and output waveguides 14 and 15 of "Invar" brazed to coupling flanges 16, 17 of steel or brass, the input element being a reflex klystron 20.
Patent GB-448732-A (GB)
Title: Improvements in safety razor blade sharpeners
IPC: B24D15/08
Filed: 1935-04-08
Abstract: 448,732. Sharpening razors. WHITE, R. H., 423, Sherbourne Street, Toronto, Canada. April 8, 1935, No. 10816. [Class 60] A sharpener for safety razor blades comprise two supporting-members 3 hinged or otherwise connected at 4 ... 6 so that they may be opened out in alignment, each member carrying, on transverse bow-shaped springs 31, a hone 2, either carried directly by the springs, or by a holder d secured to the springs. The blade 12 to be sharpened is mounted in a holder or carriage comprising a plate 13 with its ends formed into axles 15 and having hinged thereto at 19 a plate 18 adapted to clamp the blade on the plate 13 and held down by the end 24 of a bolt 23 slidable in one of the axles and prevented from rotating by a bent-up lug 25 on the axle, which engages a flat on the bolt. The axles carry wheels 28, which are adapted to run in tracks 29 in the supports 3 when the carriage is moved by a handle b rotatably mounted on the axles, and the hones 2 are so spaced that, on moving the carriage to-and-fro along the tracks, both faces of both edges of the blade are honed, the blade being reversed in the space between the opposed ends of the hones. The two supports, when placed one on the other, as shown in Fig. 2, form a casing for the carriage and its handle.
Patent GB-1497486-A (GB)
Title: Process for sealing nuclear reactor fuel rods
IPC: B23K26/12
Filed: 1976-03-18
Abstract: 1497486 Fuel elements WESTINGHOUSE ELECTRIC CORP 18 March 1976 [24 March 1975] 10924/76 Heading G6C In a process for welding an end plug in a nuclear reactor fuel rod and then pressurizing the same with the aid of the same welding apparatus, the bottom plug is first welded in one end of a loaded fuel rod and the other end of the rod is then placed in a closed chamber and the top plug welded in place by laser apparatus. To pressurize the fuel rod, the laser apparatus is readjusted and used to melt a hole radially or axially through the end plug and/or wall of the fuel tube to thereby establish communication between the chamber and fuel rod internal areas. A vacuum pump may or may not evacuate the chamber and fuel rod, which in either event, is subsequently pressurized in the range of 15 to 50 kg/cm<SP>2</SP> with an inert gas, e.g. argon or helium. The laser apparatus is again readjusted and the previously formed hole is welded shut and the fuel rod withdrawn after the chamber pressure is equalized with the atmosphere.
Patent GB-104459-A (GB)
Title: Improvements in Press-button Fasteners.
Inventor: LINDE EMIL
IPC: A44B17/00
Filed: 1916-08-02
Abstract: 104,459. Linde, E. Aug. 2, 1916. Press-button fasteners.-Each part of a pressbutton fastener is removably secured to the fabric by a plate 3, Fig. 3, having an aperture 4 containing a spring 5. The socket member A is provided with a head portion 6, which is passed through a hole in the material and then through the aperture 4 in the plate 3, the spring 5 snapping over the head 6; the stud member B is attached to the material in the same way, the spring 5 snapping over a shoulder 9 disposed below the stud 7.
Patent GB-417873-A (GB)
Title: Device for producing the visual illusion of space in projected motion pictures
IPC: G03B21/13
Filed: 1933-04-13
Abstract: 417,873. Projection screens. MARTEN, T. H., 90, Chudleigh Avenue, Toronto, Canada. April 13, 1933, No. 11084. Convention date, April 15, 1932. [Class 97 (i).] In order to produce the illusion of space in projected pictures two frames of similar appearance surround the projection screen, one approximately in the plane of the screen and the other spaced forwardly of the screen and means are provided for illuminating the frames. As shown the forwardly spaced screen 3 is connected to the structure 12, 12A of the auditorium and has an aperture 2 sufficiently large to enable the whole of the screen P to be seen by all the spectators in the auditorium. A frame 10 of the same texture or appearance as the frame 3 surrounds the screen PP and is of sufficient size to cover the field-of view through the aperture 2 of all spectators. The frame 3 and parts 12, 12A are illuminated in the same or different colours by lantern 13 so that the spectator may correctly estimate the position of frame 3. The frame 10 is illuminated in the same colour as the frame 3 either by lamps 15 or by lanterns 16 so that the spectator is unable to distinguish between the two frames, the edge 11 of the aperture 2 being sharp to facilitate this effect. Each spectator then has the illusion of looking at the screen P-P through a forwardly spaced mask exactly defining the screen area and tends to associate the space between the mask 3 and screen with the picture being shown.
Patent GB-769748-A (GB)
Title: Improvements relating to the manufacture of rubber hose
Inventor: RANDLE JOHN ERIC
IPC: B29D23/00
Filed: 1955-04-20
Abstract: The manufacture of rubber hose described and claimed in the parent Specification is modified in that a braided sheath of flexible metal strip is used in place of the braided fine wire sheath.
Patent GB-281931-A (GB)
Title: Improvements in or relating to luggage holders or carriers for motor and other vehicles
IPC: B60R9/02
Filed: 1927-04-28
Abstract: 281,931. Raff, A. April 28, 1927. Receptacles, detachably securing to running- boards and other flat bases.-Means for holding luggage upon the running-board M or similar flat surface of a vehicle comprise a pair of clamps A adapted to engage the edge of the running-board &c. and having upstanding arms which are bent inwardly at L to form an abutment for the ends of the luggage or luggage-holders and are provided with additional arms G extending parallel to the running-board &c. In the arrangement shown the clamps retain in place a box-like casing N which is connected to the parts L of the arms A by screws J and nuts K, the casing being open at the top and, if desired, the inner side, with or without a lid. The casing may, however, be dispensed with, and the luggage retained directly by straps passed through holes in the arms A, and the inwardly bent portions L of the arms may bear upon the upper surface of the luggage. To facilitate tightening of the screws C of the clamps, the lower ends of the latter are provided with cranked or T-shaped gripping portions, while fly-nuts E may be used for locking the clamps.
Patent GB-1018780-A (GB)
Title: Steroid (2,3í¬c) furazan compounds and the process for the production thereof
IPC: C07J71/00
Filed: 1964-03-18
Abstract: The invention comprises a compound having the formula <FORM:1018780/C2/1> wherein R is a hydrogen atom or a methyl group and R1 is hydrogen or a hydrocarbon carboxylic acyl group containing less than six carbon atoms and processes for the preparation thereof by cyclizing a compound having the formula <FORM:1018780/C2/2> or <FORM:1018780/C2/3> wherein R and R1 are as defined above. Alternatively the 17-acylates may be obtained by reacting the corresponding 17-hydroxy compounds with an organic acid having up to 16 carbon atoms or a functional derivative thereof, or by reacting the 17-hydroxy compound with a halogenated alkyl magnesium and reacting the resulting magnesium steroid with an organic acid acylating agent defined above.  Pharmaceutical compositions containing compounds of the above formula and having anabolic activity may be administered orally or subcutaneously.
Patent GB-249349-A (GB)
Title: Improvements in or relating to clocks
IPC: G09F23/16
Filed: 1925-05-01
Abstract: 249,349. Williamson, Ltd., H., and Seager, J. H. G. May 1, 1925. Clocks combined with advertising devices; dials; means for illuminating.-A clock casing r, has hinged to the front a frame b carrying a translucent panel a which is lighted by lamps d and e, inside and outside the casing respectively. The movement f is fixed to the panel a preferably in the manner described in Specification 249,338. This panel consists of a sheet of opal glass g, Fig. 4, having attached to the front a transparent film h having the dial and numeral mark. ings thereon in red, and at the back a black cpaque film k having advertising matter thereon in red. The hands m are translucent and red, and the lamps e and d may be switched on alternately by any suitable means. By daylight or the lamp e the clock face alone is visible, but when lighted by the lamp d only, the advertising matter alone may be seen. In a modification, a " flashed " opal panel is used, the dial and numeral markings being etched in the front opal surface and the back glazed surface being blackened except where the advertising matter is marked.
Patent GB-527735-A (GB)
Title: Improvements in or relating to electric resistances
IPC: H01C1/148
Filed: 1939-04-14
Abstract: 527,735. Silver sulphide. STANDARD TELEPHONES & CABLES, Ltd., WOLFSON, H., and HARRIS, L. J. April 14, 1939, No. 11429. Drawings to Specification. [Class 1 (iii)] [Also in Group XXXVI] Silver sulphide in coherent form is made by preheating a piece of metallic silver to a temperature above 450‹C, plunging it into sulphur vapour at a temperature between 400‹C and 450‹C, allowing the exothermic reaction to take place spontaneously, and withdrawing the product from the vapour as soon as the temperature falls. Specification 501,528, [Group XXXVI], is referred to.
Patent GB-548720-A (GB)
Title: Improvements in or relating to boards for archery, darts and like games
IPC: F41J3/00
Filed: 1941-09-08
Abstract: 548,720. Dart boards. WRIGHT, W. Sept. 8, 1941, No. 11457. [Class 132 (iii)] A dart board or other target made of compressed fibrous material arranged to extend normal to the playing surface and without any surrounding retaining member has the margin of the board i.e. the area outside the playing surface impregnated or otherwise treated so as to be more durable, or of greater density, than the fibrous material at its centre part. If the whole of the board is treated that at the centre would be less dense than that part outside the playing area. The board may be treated with glue or with an adhesive containing a quantity of rubber or the board may be sprayed with powdered resin and heat treated. If the fibrous material is in the form of a woven fabric rolled on itself the impregnating medium may be applied during part of the rolling process. The board may be mounted on a backing of paper, cloth, wood or other material.
Patent GB-1270536-A (GB)
Title: Improvements in or relating to optical instruments
Inventor: SIBERT ALAN CHARLES
IPC: G01N21/64
Filed: 1968-04-08
Abstract: 1,270,536. Detecting matter photo-electrically. GILLETT & SIBERT Ltd. July 8, 1969 [April 8, 1968], No. 11494/68. Heading G1A. An optical instrument used to inspect microscope slides or photographs for the presence of a particular feature employs means for illuminating a specimen and passing the emitted light through a filter so that only a given waveband of light is received at a photomultiplier and this received light is converted into an indication or record. The specimen is mounted on platform 5 and is illuminated by light from a quartz iodine lamp 1 after it has passed through primary filter 3 which passes light below a certain wavelength. In this band of light the specimen fluoresces in different colours and this light is passed through objective lenses 6 and secondary filter 7 which passes only light above the predetermined wavelength and thereby eliminates any light from source 1. The resulting light is passed through stop 9 and reflected by dichroic mirrors 11 into photomultipliers 12, 13, 14. The output of the photomultipliers may be indicated on meters 15, 16, 17, used to sound an alarm or be recorded. The filters 3, 7 may be capable of being changed. The specimen may be moved across the light source or alternatively it may be held stationary and be scanned by the detector. A single photomultiplier only may be used.
Patent GB-809280-A (GB)
Title: Fuel elements for nuclear reactors
IPC: G21C3/64
Filed: 1957-04-09
Abstract: A nuclear fuel element comprises uranosic oxide embedded in either aluminium or magnesium.  Aluminium is mixed with an equal weight of U3O8, both in powder form, in a ball mill, extruded at 425 to 485 DEG C. and treated with nitric acid to leach away any uranium on the surface.  When using magnesium powder the element is extruded at 315 to 415 DEG C.  Alternatively the mixed powders are poured into an aluminium can which is then extruded. The ends of the can may be covered or left bare and the can may subsequently be subjected to cold rolling.  The uranium may be enriched with U235.  The Specification also describes the prior art in which UO2 powder is used, producing a weaker fuel element due to alloying between the uranium and aluminium.  It is stated that with U3O8 an oxide film is produced on the aluminium particles, thereby preventing alloy formation.  With this prior art, extrusion at 510 DEG C., hot rolling at 600 DEG C. and heat treatment under vacuum at 660 DEG C. are described and photomicrographs show the differences between this treatment with UO2 and with U3O8.
Patent GB-144448-A (GB)
Title: Improvements in or relating to screw propellers
IPC: B63H1/12
Filed: 1919-05-08
Abstract: 144,448. Thornycroft & Co., J. I., and Thornycroft, Sir J. I. May 8, 1919. Screw propellers.-A propeller for navigable vessels is adapted to ride over obstructions such as booms, comprises helical blades a which are secured at their ends to two independent bosses c, c<1> mounted on the propeller shaft. The enveloping surface swept out by the screw corresponds to that swept out by a parabola b, and the distance A-B between the ends of the screw is greater than the maximum diameter of the screw. The blades have no free ends. The forward boss c is tapered internally and secured to the shaft e by a tapered split bush d which is forced into position by a nut f. Each half of the bush d may be spliced to the shaft. The rear bush may be fixed to the shaft in the usual way.
Patent GB-127759-A (GB)
Title: Improvements in and relating to Electric Switches for use in Governing Fluid Pressure.
IPC: G01L19/08
Filed: 1918-07-16
Abstract: 127,759. British Thomson - Houston Co., (General Electric Co.). July 16, 1918. Starting and stopping pumps automatically.- A device for closing the circuit of a motor driving a compressor when the pressure falls below one limit, and for cutting out the motor when the pressure rises above the other limit, comprises a pointer 5 of a pressure gauge movable between limits in accordance with the pressure and engaging a contact-member 14 at one of the limits, means being provided for causing the contact member to follow the pointer and maintain engagement during the return movement to the other limit. When the contacts 12, 13 carried by the pointer and the contact-member are in engagement at the lower limit, the circuit is closed through an electro-magnet 16, which attracts its armature 18 and strains a spring 22 connected to a weighted lever 15 carrying the contact-member 14. At the same time the operating-coil of the line contactor 20 is energized by the engagement of contacts 19, thereby closing the circuit of the compressor motor. As the pointer travels towards the upper limit of pressure, the spring 22 causes the contactmember 14 to follow it and maintain the contacts 12, 13 in engagement until the arm 14 engages a stop 7 carried by an arm 9 set at the upper limit, when the pointer continues to move forward and opens the circuit at the contacts 12, 13. The armature 18 is then returned to its original position by the spring 22 and the motor circuit is opened by the separation of the contacts 19. The weighted lever 15 carries the contact-member 14 back to its original position in engagement with a stop 8 carried by an arm 10 set at the lower limit of pressure. The pivot 24 of the pointer 5 is connected by a link 25 to a block 23 carried by the free end of a Bourdon tube or gaugespring 4. and the pointer is normally biassed towards the lower pressure limit by a spring 26.
Patent GB-283390-A (GB)
Title: Improvements in or relating to electro-therapeutic appliances
IPC: A61N1/04
Filed: 1927-05-02
Abstract: 283,390. Noishiki, Y. May 2, 1927. Electric appliances; heating appliances.-An electrode for administering medicinal liquids bv electricity consists of a receptacle 1 having electric connections 4 situated in recesses below the surface of the electrode. A filling opening 9 and securing screws 7 are provided in a casing 6 surrounding the electrode. The receptacle 1 is filled with hot water or medicated liquid which escapes through openings in the outer surface of the receptacle and into which tufts of absorbent cotton 2 can be inserted.
Patent GB-574011-A (GB)
Title: Improvements in or relating to mortars and other ordnance pieces
IPC: F41A19/52
Filed: 1941-09-12
Abstract: 574,011. Ordnance. MOTLEY, L. Sept. 12, 1941, No. 11705. [Class 92 (ii)] Relates to guns of the kind in which the barrel when fired is ejected rearwardly by the recoil so as to fall clear of its mounting, the reaction on firing being thereby neutralized, and consists in providing means whereby the firing mechanism is automatically re-cocked by the rearward ejection of the barrel. In the form shown, a number of projectile-carrying barrels 1 are arranged in a hopper 2 for feeding to a trough 3 where the cap of the cartridge is struck by a pivoted hammer 5 released by pressing a trigger 4. On firing, the barrel is ejected rearwards and acting on an inclined slide 13 cocks the hammer into engagement with a sear 10. The sear is a pawl-like member pivoted on an arm 17 pressed forwardly about a pivot 18 by a spring-pressed rod 19. The trigger 4 is loosely mounted on the pivot 18, as shown in Fig. 5, and rocks the arm 17 through a slipping pawl 23 to permit of " singleshot " fire. Firing can only take place when a barrel in the firing position depresses a lever 28 to present a gap 33 to a collar 34 on the rod 19. For automatic fire, a member 38 is moved to the left through 90 degrees into the path of the member 32 having the gap 33, and the movement of a barrel to firing position then actuates a lever 35 to move the rod 19 and thereby release the firing hammer automatically as each barrel moves to firing position. As shown in Fig. 2, the trigger 4 is arranged laterally of the line of recoil of the barrels. Reference has been directed by the Comptroller to Specification 545,763.
Patent GB-1418682-A (GB)
Title: Scanning systems
IPC: G02B7/182
Filed: 1972-03-14
Abstract: 1418682 Optical scanning PLESSEY CO Ltd 16 Feb 1973 [14 March 1972] 11714/72 Heading H4F [Also in Divisions G2 and H2] In an oscillating mirror optical scanner, the mirror 1 is pivoted about an axle 2 and caused to vibrate by means of an arcuate magnet 9 on an extension 8 moving within the polepieces 10, 11 of solenoids 12 and 13 energized by a pulsed voltage, the mirror coming up against end stops 4, 5 (possibly being resilient so as to absorb the impact energy and then release it) at the ends of its swing and the mounting platform 3, upon which the solenoids and end stops are fixed, being also pivoted about the axle 2 for limited damped movement as determined by two magnets 6, 7, the former on the platform and the latter on a stationary base. The limited movement of the platform renders the scan of the mirror more linear at its extremes. The mirror may carry a reed, vibrating at a desired (resonant) frequency, the reed interrupting the light from a source to a photo detector so that a pulsed reference signal is generated for controlling the pulsed voltage applied to the solenoids. The scanner may be used with a linear array of either light or infra-red detectors.
Patent GB-1244937-A (GB)
Title: Method and apparatus for splitting oriented plastics materials into fibrous structures
Inventor: KALWAITES FRANK
IPC: D01D5/42
Filed: 1969-03-05
Abstract: 1,244,937. Fibrillating oriented plastics films. JOHNSON & JOHNSON. 5 March, 1969 [5 March, 1968], No. 11718/69. Heading B5B. A method of treating a film of highly linearly oriented plastics material to produce a split fibre web, comprises moving a film of the material in a first direction and changing the direction at an acute angle to the first direction whilst simultaneously applying disruptive forces to split the material into a fibre network. The apparatus for carrying out this method comprises a first rotatable roll 27 having a stationary blade 28 in tangential contact with the surface of the first roll along a line parallel to the axis of the roll, and a rotatable brush roll 40 positioned adjacent to the end of the blade 28. The oriented plastics film 25 is driven by rollers (not shown) and passes between the roll 27 and blade 28, is made to change direction over the edge of the blade, and has disruptive forces applied by the brush roll 40, the resulting material being conducted away by further rollers. The brush roll has metal wire bristles and rotates with a peripheral linear speed at least twice as high as that of the material 25 and the roll 27, which has a slightly roughened surface. The plastics film may be oriented in either the longitudinal or the transverse direction, since the disruptive forces are applied by the brush randomly over the entire surface. Exemplified materials are polyethylene and polypropylene.