baber/WOPTO huggingface dataset:
Patent GB-392989-A (GB)
Title: Improved tool for assembling and dismantling split cones to internal combustion engine valves
IPC: B25B27/24
Filed: 1931-12-11
Abstract: 392,989. Holding tools for assembling and dismantling cone valve-cotters. YATES, J., 2, File Street, Chorley, Lancashire. Dec. 11, 1931, No. 34322. [Class 61 (ii).] A tool for assembling split cones on overhead valves in internal-combustion engines comprises a spring-pressed plunger c, Fig. 1, spring fingers f and a removable member h, Fig. 3, fitting around the end of the spring-pressed plunger and maintained in position by the spring fingers f engaging grooves i. The member h may be removed and replaced by a member j, Figs. 6 and 7, for separating the split cones and extracting them. With the member b in position the cones are fitted by forcing them between this member and the spring fingers f, and thereupon the member h is pressed against the cage g, Fig. 6, to compress the valve spring and enable the cones to be pushed to the required position at which they engage the groove in the valve stem. In the operation of the tool with the member j in position, projections on the member separate the cones as the valve spring is compressed and on release of the pressure the cones emerge clear of the valve stem.
Patent GB-1006255-A (GB)
Title: Improvements in or relating to electro-magnetic relays
IPC: H01H51/28
Filed: 1962-09-07
Abstract: 1,006,255. Electromagnetic relays. THERMOSEN Inc. Sept. 7, 1962 [Sept. 11, 1961], No. 34368/62. Heading H2B. A relay has a polepiece associated with a plurality of reed armatures co-operating with fixed contacts, the polepiece, armatures, and contacts being in a common enclosure separate from the energizing coil. Each reed armature 20 co-operates with fixed contacts on blades 26, 28, and is adjacent one of the spokes of a spoked polepiece 18. The polepiece 18, armatures 20, contact blades 26, 28 are in an enclosure 24 which is evacuated or filled with an inert gas through a tube 36. The wall 60 of the enclosure may be of brass, iron, glass or plastic. The coil 22 is within a magnetic casing 56 between a support 54 of the casing and the top 58 of enclosure 24. The fixed contact blades are made from phosphor-bronze or beryllium copper and the reeds from iron or silicon-iron alloy. The reeds and contact blades are either plated with gold or silver or the contacts carried thereby are made of arc-resisting tungsten or molybdenum alloys. The change-over contact sets shown may be replaced by normally open or normally closed sets and the terminals 42 may be in the form of plugs. Each relay may have two polepieces each co-operating with an array of contacts. The coil and cone may be centrally disposed in an annular contact enclosure.
Patent GB-301901-A (GB)
Title: Improvements in or relating to the manufacture of flexible floor, wall, and like coverings
IPC: D06N1/00
Filed: 1928-11-22
Abstract: 301,901. Willigen, P. C. van der, and Naamlooze Vennootschap Nederlandsche Linoleum-Fabriek. Dec. 8, 1927, [Convention date]. Emulsions, making.-In the manufacture of flexible floor, wall, &c. coverings, the coating materials, i.e., fillers and binding materials, are brought into a state of colloidal suspension or emulsion in a liquid dispersing medium, preferably water. The colloidal solutions or emulsions are then mixed, and the colloids coagulated, for example, by adding electrolytes or by passage of a current. The coagulated mass is then freed from the dispersing medium, and used for making the covering. The usual binding means such as oxidized oils may be used, or alternatively other insoluble binders such as rubber or asphalt. When latex is used as a. binder, a, vulcanizing agent in colloidal form is added: in the case of asphalt, softeners may be added. In making linoleum, cork or woodmeal in finely divided form is brought into aqueous colloidal suspension in a solution of soap, glue or other emulsifying agent. Other fillers and colouring matters used, such as barium sulphate, calcium carbonate, zinc oxide, lithopone and china clay, may also be brought into colloidal suspension. Solutions of salts, such as barium chloride or alum, or acids such as hydrochloric or acetic acid may be used as coagulants. In an example, 50 litres of a colloid emulsion containing 25 per cent of linoxyn and 5 per cent of resin are mixed with 100 litres of an aqueous colloid suspension of 10 kilograms of cork meal, 10 kilograms of china clay, and 10 kilograms of ochre with 0.5 kilogram of glue as emulsifying agent. The emulsion of linoxyn and resin may be prepared by dissolving in a solvent, for example acetic acid, and pouring the solution into water. When the emulsion and suspensions are mixed, the whole is coagulated while being stirred. Most of the water is removed by filtration, and the mass is dried and made into floor covering in a press or otherwise. In the case of rubber latex, colloidal sulphur is added in the proportion of 5 parts to 100 parts of rubber. A small quantity of accelerator, for example diphenyl urea, in colloidal solution may be added. The final product may then be heated to effect vulcanization. Floor and other coverings produced by this method may be made without textile backing.
Patent GB-300993-A (GB)
Title: Improvements in or relating to submarines
IPC: B63G8/08
Filed: 1928-11-22
Abstract: 300,993. Naamlooze Vennootschap Ingenieurskantoor voor Scheepsbouw. Nov. 22, 1927, [Convention date]. Driving arrangements for screw propellers.- In submarines the exhaust gases of the main Diesel motors are utilized to drive turbines which run the air compressors for the main engine service. The combined turbine compressor unit or one of the elements is arranged outside the main hull and is enclosed in a pressure resisting cover. An exhaust turbine A and compressor C mounted in a strong casing B, Figs. 1, 2, is placed outside the main hull K and within the outer shell J. The lead from the main engine E is by a pipe D passing through suitable stuffing boxes. The used gas finally passing away through a pipe with a stuffing box attachment F in the casing B. The compressor draws its air through a pipe G and discharge by means of pipe H through stuffing. box connections on the hull. In order to simplify the arrangement and lessen the number of stuffing boxes the casing B may be partly built into the main hull. In an alternative arrangement, Fig. 7, the compressor C is mounted within the hull and the turbine A outside, in which case the connection to the turbine has to be shut off prior to submerging. When mounted outside the shell the casing B need only enclose: the turbine the compressor being unprotected.
Patent GB-1102314-A (GB)
Title: Improvements in or relating to typewriters and similar machines
IPC: B41J7/22
Filed: 1966-08-01
Abstract: 1,102,314. Typewriters. SIEMENS A.G. 1 Aug., 1966 [2 Aug., 1965], No. 34403/66. Heading B6F. A manually or electrically operated typewriter is provided with a type-bar rest which comprises a plurality of type-bar rest segments 1, 2 each mounted on respective yokes 5, 6 for pivotal action on pins 7, 8 whose axes are parallel to the tangent of the central type-bar 3 associated with the respective segment. Rebound is deadened immediately by damping springs 9, 10 and other type-bars 3 resting on the segments. Bearing surface of rest segments is covered with a sound-deadening material which may be a synthetic plastics material.
Patent GB-447923-A (GB)
Title: Improvements in or relating to vehicle brakes
IPC: F16D65/58
Filed: 1934-11-30
Abstract: 447,923. Adjusting internal brakes. CLENCH, E. C. S., and AUTOMOTIVE PRODUCTS CO., Ltd., Brock House, Langham Street, London. Nov. 30, 1934, No. 34464. [Class 103 (i)] In automatic wear-compensating mechanism for an internal-expanding brake operated by toggle linkage 16, 17, at least one of the toggle links engages a shoe by means of a pin-and-slot connection the position of the pin in the slot being determined by an adjustable abutment through which power is transmitted from the link to the shoe. Toggle link 16 has a pivot 22 engaging in slot 23 in shoe 10. Pivot 22 engages liner 25 pivoted at 26 and held in position by snail cam 27 engaging the lever at 30. The cam is adapted to be turned to adjust the position of the pivot 22 by a one-way ratchet 36 in a lever 32 which is moved by a pin 40 when the movement of the shoe is excessive. The lever moves freely on the shaft of the cam during brake-applying movement and moves the cam during the releasing movement. A similar mechanism may be arranged on the other toggle link 17. In a modification, the cam is turned by a ratchet wheel and a pawl on the brake back plate. In the modification shown in Fig. 5, a manually or automatically adjusted stop 48 is adapted to hold the shoe in a new position when wear occurs and a spring 57 therein moving the toggle 16, 17 so as to engage the roller 19 with the cam 21, moves the pivot 22 along the slot 50 in the shoe and spring- pressed wedges 53, 54 hold the pivot in its new position. The adjustable connection between a toggle link and a shoe may be a ratchet. The toggle linkage is operated by a cam 21 rotatable about the axis of the brake drum and which may be operated by servo brake shoes.
Patent GB-871262-A (GB)
Title: Improvements in or relating to the manufacture of radiators, more especially for motor vehicles
Inventor: KNOWLES JOHN CHARLES
IPC: B21D53/08
Filed: 1958-10-28
Abstract: 871,262. Making radiators. FORD MOTOR CO. Ltd. Aug. 21, 1959 [Oct. 28, 1958], No. 34516/58. Class 83 (2). Apparatus for inserting radiator tubes x in a fin-nest k or magazine comprises a hopper a, means b for transferring the tubes from the hopper to a chamber b<SP>1</SP>, e<SP>1</SP> wherein they are supported over substantially their whole length against buckling, and means h operating in the chamber for pushing the tubes into the fin-nest or magazine as this is indexed past the chamber. The transfer device b, extending between the channel members a of the hopper, is pivoted to the bed of the apparatus and formed with part bl of the chamber bl, e<SP>1</SP>, part e<SP>1</SP> being formed in a guide-block e: Operation of device b to transfer a tube and bring the chamber part b<SP>1</SP> against part e<SP>1</SP> is by a cylinder c, one or more springs d preventing escape of the tube during transfer. The pusher h, projecting into chamber bl, el, is carried by a slide g traversed by a cylinder f. Specifications 749,014 and 761,996 are referred to.
Patent GB-462858-A (GB)
Title: Improvements in or relating to high pressure metal vapour electric discharge devices
IPC: H01J61/34
Filed: 1935-12-13
Abstract: 462,858. Discharge apparatus. GENERAL ELECTRIC CO., Ltd. (Patent-Treuhand-Ges. fur Elektrische Gluhlampen) Dec. 13, 1933, No. 34620. [Class 39 (i)] A high - pressure metalvapour device having a pressure greater than two atmospheres containing a resistant translucent sheath of cross-sectional area not more than 38 sq. mm. closely surrounding the discharge and intervening between it and a non - resistant envelope, and the device is placed in a glass bulb similar to an incandescent lamp bulb, the leads being connected to contacts on the cap. The sheath may be of quartz or of 80 per cent ZrO, 14 per cent ThO2, 6 per cent CaO to which a small addition of SiO2 may be made, or of a ceramic material, such as 90 per cent ZrO2, 10 per cent MgO, glazed on the surface, or of opaline glass. As shown, a hard glass envelope 4 contains a quartz sheath 13 abutting against the envelope, and the leads are connected to support wires 5, 6 connected to an Edison cap 1 on an outer envelope 3. The device may contain mercury at not much less than 10 atmospheres. Specifications 431,451 and 461,211 are referred to.
Patent GB-468833-A (GB)
Title: Improvements in colour photography and cinematography
IPC: G03C7/00
Filed: 1935-12-13
Abstract: 468,833. Colour photography and kinematography. MORENO, G. G. Dec. 13, 1935, No. 34659. Convention date, Dec. 17, 1934. [Classes 97 (i), 98 (i), and 98 (ii)] In a process of colour photography, two colour-record images are produced and additional images are produced by printing these in succession in the same image area, controlling the printing light in the successive printings so that the resulting print has a colour value different from that of the original records. Preferably, the original images are records predominating in colours of the longer wavelengths and the shorter wavelengths respectively, e.g. orange-red and blue-green. The two original images and two images produced from them may be arranged in a single image space of a kinematograph film for additive projection as shown in Fig. 10. In carrying out the process, orange-red and blue-green negatives are produced and a print is made from the blue-green negative using a printing light of 75 per cent of the intensity used in producing a normal print. On this is printed the orange red negative using 25 per cent of the light. A second print is then made using 50 per cent of the light in each printing and the four records are combined on a film as in Fig. 10. Preferably, the prints are arranged with their bottom edges towards the leading end of the film. The images may be projected simultaneously or in rapid succession. The Specification as open to inspection under Sect. 91 describes also an optical printer and a lens system for projection of the films. The printer, Fig. 11 (Cancelled), comprises a lamp housing 11, a projector 12 with means for driving the original film, an inverting prism 26, an optical system 25, and a camera 21 with means for feeding the sensitive film. The feeds of the camera and projector are preferably interlocked. The printing gate 23 in the camera is carried by an adjustable plate 24 and is covered by two masking plates, one of which is vertically adjustable and has an aperture equal in width to, and of half the height of an image space of the film, and the other is horizontally adjustable and has an aperture equal in height to, and of half the width of an image space. The four images can be located in the four quarters of an image space by adjustment of the plates. The projector lens system consists of a main projection lens and a lens composed of four sectors 58 .. 61, Fig. 18 (Cancelled), having arcs of length greater than À786 times the radius of the lens and relatively adjustable. The sectorial lens is carried by a strap 65 on a flange 68 on the projector which also carries the main lens in an adjustable sleeve. Colour filters are mounted in or on the sectorial lens. This subject-matter does not appear in the Specification as accepted.
Patent GB-944666-A (GB)
Title: Improvements in sheet feeding machines
Inventor: TEBBS GEORGE WILLIAM
IPC: B65H9/00
Filed: 1961-09-27
Abstract: 944,666. Feeding sheets. HEADLEY TOWNSEND BACKHOUSE. Sept. 25, 1962 [Sept. 27, 1961], No. 34721/61. Heading B6B. Apparatus wherein a succession of single sheets or a continuous stream of partly overlapping sheets are conveyed over a table 10 to front stops 12, the sheets being slowed down as they approach said front stops by hook-shaped fingers 14 which engage the leading edge of a sheet and move towards the front stops at a speed less than the conveyer, is provided with air chambers 19 set in the table, each chamber having a mouth 16 or 17 opening into the surface of the table and an inlet 20 through which air is blown to create a vortex and therefore an area of reduced pressure at the mouth tending to suck the sheets down on to the table and prevent them riding over the fingers 14 or the front stops 12. Each chamber is provided with spaced air outlets 22 adjacent the mouth, some of the air spilling over the mouth and forming an air cushion between the sheet and the table. Alternatively, the positions of the inlet 20 and outlets 22 are reversed, or each chamber is provided with a single outlet in the base of the chamber, Figs. 5 and 6 (not shown). To prevent a sheet being drawn down into the chambers, support bars 24 extend across the mouths 16, 17.
Patent GB-430224-A (GB)
Title: Improvements relating to the manufacture of electron emitting electrodes for electron discharge tubes
IPC: H01J40/06
Filed: 1934-12-03
Abstract: 430,224. Thermionic cathodes ; photoelectric cells. NAAMLOOZE VENNOOTSCHAP PHILIPS' GLOEILAMPENFABRIEKEN, Emmasingel, Eindhoven, Holland. Dec. 3, 1934, No. 34736. Convention date, March 26. [Class 39 (i)] In preparing an emissive cathode, particularly for a photo-electric cell, of the type made by treating a layer of oxide, such as silver oxide, with an alkali, or alkali earth, metal, such as caesium, the oxide layer is made by using the coating metal as a cathode at a distance from the surface to be coated and passing a discharge from it through an atmosphere containing oxygen. The mass of metal 5 may be mounted on a molybdenum lead 4 in an insulating tube 3, and a wire 6 be provided to act as anode. The cell is filled with oxygen at about 0À1 mm. and on the discharge passing an oxide layer 8 is formed on the wall of the bulb. A modification is described in which the oxide layer is formed on a metal screen. The oxide layer may be treated with alkali metal as described in Specification 373,867.
Patent GB-633926-A (GB)
Title: Improvements in and relating to thermionic valves
IPC: H01J19/34
Filed: 1947-12-30
Abstract: 633,926. Thermionic valves. METROPOLITAN-VICKERS ELECTRICAL CO., Ltd. Dec. 30, 1947, No. 34740. Convention date, Dec. 12, 1942. [Class 39 (i)] In a high power thermionic valve the anode 25, 26, Figs. 1, 2, is double walled and is water-cooled, the walls being connected at the upper end by a member 22 and supported, the inner rigidly at 24 and the outer flexibly at 27 at the other end so as to allow for differential thermal expansion of the inner and outer anode walls, an electrically insulating envelope member Q2 surrounding the outer anode wall and the outer anode wall being exposed to the vacuum within the valve. A baffle 28 forces the water to flow longitudinally of the anode. The filaments are attached to support-rods 9 by intermediate threaded members, Figs. 3, 4 (not shown), and the rods 9 are fixed to members 1, 3 by screws 10 ; the cathode leads 1, 2, 3 are water-cooled and the metal ring 5 on which the leads 1, 2, 3 are mounted has water-cooling channels 7, 8. A screen 6<1> prevents particles from the cathode from impinging on the insulator 6. The grid is mounted on metal rings 13, 14 formed with water-cooling channels 15, 16. A screen 18 and ring 20 protects the joint 19 from the grid-cathode high-frequency field, and a screen 21 prevents particles from the cathode from impinging on the insulator Q2. The anode is carried by metal rings 23, 24. The baffle 28 is formed by two half-cylinders clamped together by bands.28a. A baffle construction 32, 36 prevents vapour from the cathode from impinging on the insulator Q3. A vacuum pump (not shown) is attached to the lower end of the device. The seals are made by putty and the insulators Q1, Q2, Q3, are of cast quartz.
Patent GB-628808-A (GB)
Title: Improvements in or relating to moulded tea pots and the like
IPC: A47G19/14
Filed: 1945-12-21
Abstract: 628,808. Moulding teapots &c. WARD & GOLDSTONE, Ltd., and WILLETT, W. H. Dec. 21, 1945, No. 34779. [Class 87 (ii)] [Also in Group XVII] A teapot &c. is moulded with an open channelshaped spout e with " draw " in the direction of the main axis of separation of the mould i.e., the vertical axis. Holes are drilled through the wall between the spout and the interior of the vessel after moulding. A flash line b forms a decorative rib. An annular recess in the top receives the spigot of the lid.
Patent GB-1197915-A (GB)
Title: Apparatus for separating Minerals
Inventor: RAFALES-LAMARKA ERNESTO
IPC: B03B5/24
Filed: 1967-07-28
Abstract: 1,197,915. Jig washers. UKRAINSKY PROEKTNO-KONSTRUKTORSKY I NAUCHNO - ISSLBDOVATELSKY INSTTTUT PO OBOGASCHENIJU I BRIKETIROVANIJU UGLEI UKRNIIOBOGFISOHBNIE. 28 July, 1967, No. 34795/67. Heading B2H. In a jig washer having a pulsation chamber 2 located in a water tank beneath a screen 1 with its upper closed end portion tapering in a direction towards the screen, the upwardly diverging space on each side of the tapering portion is subdivided by one or more guide blades 5 into upwardly diverging zones, whereby the velocity of the pulsating water current is maintained uniform through the portion of screen above each zone. Compressed air may be supplied to the chamber 2 to provide pulsations to the water. Alternatively, the pulsations may be impacted by a reciprocating piston. The bottom of the chamber 2 is streamlined as at 4 and is spaced from diverging blades 6 which guide the water issuing from the chamber 2. As shown, the water tank is subdivided longitudinally into a number of compartments by partitions 3, a chamber 2 being provided between each pair of partitions and extending the whole width of the respective compartment. Relative dimensions are given.
Patent GB-661866-A (GB)
Title: Coupling circuit arrangement for coupling a two-wire direct-current telegraph line to a two-channel trunk
IPC: H04L25/22
Filed: 1947-12-31
Abstract: 661,866. Electric telegraphy. STAATS. BEDRIJF DER PASTERIJEN, TELEGRAFIE EN TELEFONIE. Dec. 31, 1947 [Sept. 9, 1946], No. 34973/47. [A Specification was laid open to inspection under Sect. 91 of the Acts, Dec. 31, 1947]. Class 40 (iii). . A two-wire/four-wire telegraph termination is arranged to avoid some disadvantages of the termination described in Specification 661,867. The current in the local line is stabilized at a constant value by a selfbiassed valve in series with the line. Signalling in to the local line is by short-circuiting instead of breaking that line since in the latter case there is a delay before the valve B<SP>2</SP> cuts off, and signalling in the four-wire trunk circuit is by two-tone carrier currents. When a 40 mA. line current is flowing the grid of a control valve B<SP>2</SP> receives a 1v. negative bias with respect to its cathode which is connected to a point of fixed potential on a potentiometer R3, R<SP>4</SP>, R<SP>17</SP> of which R<SP>17</SP> may comprise filament heaters. A decrease in line current increases the negative bias and the increase in potential at the anode resistor R<SP>9</SP> increases the positive bias of a regulator valve B<SP>3</SP>. This therefore draws more current until the stable mA. condition is attained. This current stabilization allows the termination to be connected to local lines of different resistances. Transmission from local line. When the transmitter contacts ZC are opened for a mark the current through resistors R<SP>1</SP>, R<SP>2</SP> ceases and the blocking potential is removed from a rectifier G<SP>3</SP>. The tuning circuit C<SP>1</SP> ... C<SP>3</SP>, R<SP>5</SP> ... R<SP>7</SP> of a feed-back oscillator B<SP>1</SP> is thereby altered by the added resistances R<SP>8</SP> and RI ... R<SP>4</SP> and the oscillator changes from a spacing to a marking frequency in the outgoing trunk 3, 4. Reception from trunk circuit. Mark and space frequencies in the incoming trunk 5, 6 are amplified, limited and applied to the input transformers TR<SP>2</SP> and TR<SP>3</SP> which are tuned respectively to the mark and space frequency. From the secondaries rectified current is applied to the grid and cathode of a shortcircuiting valve B<SP>4</SP> which is thus made non- conductive or conductive respectively. When the valve B<SP>4</SP> conducts it balances out the normal line current to record a mark on the receive relay OB. The regulator valve current is maintained however at 40 mA. and the bias applied by resistors R<SP>1</SP>, R<SP>2</SP> to the rectifier G<SP>3</SP> remains unchanged so that a normal spacing tone is still generated and transmitted. By increasing the voltage of battery V<SP>2</SP> the signalling in the local line becomes of the double current type.