baber/WOPTO huggingface dataset:
Patent GB-456728-A (GB)
Title: Improvements relating to the pictorial reproduction of stationary or moving objects
IPC: H01J31/50
Filed: 1935-05-08
Abstract: 456,728. Photo - electric apparatus. BRITISH THOMSON - HOUSTON CO., Ltd., Crown House, Aldwych, London. May 8, 1935, No. 13579. Convention date, May 8, 1934. [Classes 39 (i) and 40 (iii)] [See also Group XX] An object 1 is projected optically on a surface 5 which emits electrons, in accordance with the incident radiation, to produce an electron image of the object. The electrons are focused on a fluorescent screen 9 by perforated diaphragms which are so charged as to act as an electron lens. The optical image may be projected on the side of the cathode 51, Fig. 5, adjacent the vacuum with the aid of a concave mirror diaphragm 50. The electrons are focused by the combined actions of the diaphragm and a coil 53. According to a modification, the electrons are focused by a series of equally spaced perforated diaphragms charged to potentials proportional to their distances from the cathode, Figs. 3 and 4 (not shown). Photography, Fig. 5. A projectile 45 is illuminated by a spark discharge 43, and its image projected on the cathode. The electron image is moved over the fluorescent screen 54 by deflecting plates 58 so that images produced by successive discharge of the spark occupy different parts of the fluorescent screen. The images are photographed by a camera 59. Filters 46, 60 are complementary to prevent direct action on the camera by the light from the spark. Television transmitter, Fig. 6. The electron image is moved over the screen 61 by the deflecting plates 63 so that the image is scanned by an aperture in the screen. The electrons passing through the apertures are picked up by an insulated interceptor 62, which is directly connected to the grid of an amplifier 66. The Specification as open to inspection under Sect. 91 comprises also velocity modulation, Fig. 9, (Cancelled). When using velocity modulation, in order to keep constant the period of scanning the picture, the scanning- speed is made proportional to the total brightness of the picture, in addition to inversely proportional to the luminosity of the point being scanned. The voltage on the interceptor 76 is passed through an amplifier with a hyperbolic characteristic, to apply to the grid of variable-mu valve 82 a voltage inversely proportional to the current received by the interceptor. The grid-bias of the valve 82 is controlled through an amplifier 79 by the electron current reaching the screen 75. The output of the valve 82, after amplification, modulates the rate of charge of a condenser 85 across the deflecting plates in the cell 87 which produce the line-scanning. Each time the condenser 85 is discharged by a gasdischarge tube 88, an impulse is obtained to unblock a low-amplification screen-grid valve, which charges the condenser from which are obtained the voltages for the other component of scanning. This subject-matter does not appear in the Specification as accepted. Reference has been directed by the Comptroller to Specifications 368,309 and 368,721.
Patent GB-611697-A (GB)
Title: Electromagnetic relay
IPC: H01H51/06
Filed: 1946-05-06
Abstract: 611,697. Electromagnetic relays. RAMSEY, A. R. J. (Guardian Electric Manufacturing Co.). May 6, 1946, No. 13716. [Class 38 (v)] The armatture 29 of a relay is pivoted on a non-ferrous bracket 21 so as always to leave an air gap C between the armature and the yoke 11 and so avoid any sticking action at the hinged end of the armature. The armature is biassed by a spring 33 and its other end carries an insulating member 51 connected to the moving contacts 42. In manufacturing the relay, two sub-units are first assembled, unit A comprising the core, winding and yoke 11 and unit B comprising bracket 21, armature and contact springs. Units A and B are then fixed together by screwing the bracket 21 to the yoke 11. Units A adapted for varying currents may thus readily be assembled with selected units B having different arrangements of contact springs. Specification 611,698 is referred to.
Patent GB-116987-A (GB)
Title: Improvements in Reinforced Concrete Supports for use in Shoring and Strutting.
Inventor: PRICE ARTHUR BOYD
IPC: B63C5/02
Filed: 1917-09-24
Abstract: 116,987. Price, A. B. Sept. 24, 1917. Shoring and strutting. - Supports of reinforced concrete for use in the construction of ships and for other purposes comprise one or more columns or bars C integral with cup portions or base A projecting laterally beyond the pillars, the pillars being reinforced with helices or hoops F with or without straight bars connecting to the reinforcement of the caps and bases. The bottom faces of some supports may be inclined to adapt them to a slip-way, and the ends of the caps and bases may be inclined also to enable the supports to be moved about easily, hooks or eyes D being provided for engagement by bars or the like. The supports are cut away at B to reduce the weight.
Patent GB-101708-A (GB)
Title: Improvements in the Manufacture of Products from Reaction between Gaseous Hydrocarbon and Chlorine, or other Gaseous Halogen, and in Apparatus for use in such Manufacture.
Inventor: LACY BURRITT SAMUEL
IPC: C07C17/10
Filed: 1916-09-27
Abstract: 101,708. Lacy, B. S. Oct. 6, 1915, [Convention date]. Chemical manufacture, furnaces for.-Reactions between chlorine or other gaseous halogen and methane, ethene, or other gaseous hydrocarbon are effected by mixing, at ordinary temperature, the halogen with excess of the hydrocarbon, then adding a furtiier quantity of heated hydrocarbon and then causing the total mixture to react, preferably at a higher temperature. The apparatus shown comprises an outer metal shell 1, a lining 2 of silica or other material resisting chlorine, a packing 3 of ground Hint, a further quantity 3<a> of ground flint on the floor of the chamber, external heating-means such as gas jets 7, a gas-inlet pipe 9. and a gas-outlet pipe 22. The pipe 9 is of silica and is surrounded by a metal pipe 10 and ground-flint packing. Methane enters by the pipe 19, and chlorine by the pipe 16; part of the methane passes through the regulating-valve 20 and gauge 21 to the T-piece 15, where it mixes with the chlorine, while the remainder passes through the heater 17 to the T-piece 11 and pipe 9, meeting the cold mixture of methane and chlorine issuing from the pipe 12; the whole mixture then enters the reaction chamber. The Specification as open to inspection under Sect. 91 (3) (a), mentions also the halogenation of derivatives of hydrocarbons, such as methylene chloride, and the effecting of reactions between corrosive and non-corrosive gases in general, by the process described above. This subjectmatter does not appear in the Specification as accepted.
Patent GB-200643-A (GB)
Title: Improved process of and apparatus for telegraphically reproducing pictures and the like
IPC: H04N3/02
Filed: 1922-05-16
Abstract: 200,643. Wade, H., (Mills Novelty Co.). May 16, 1922. Thermionic amplifiers.-In an arrangement for the telegraphic transmission of pictures &c., a linear arrangement of selenium cells is employed whereby picture elements corresponding with a strip of the picture &c. are simultaneously transmitted, a progressive strip of the picture being dealt with by the use of a rotating mirror. At the receiver a row of electromagnets corresponding with the selenium cells is used. each adapted to deflect a corresponding mirror to throw more or less light, according to the amount of deflexion, through a slot and on to a receiving screen. Each cell 18, Fig. 4, together with a battery 22, is in the grid circuit of an amplifier 25, the plate circuit including a variable resistance 28 and the field of a high-frequency alternator 30 coupled to a transmitting aerial 32. A second grid is connected to the plate through a condenser shunted by a resistance. Different frequencies are used with the various cells so as to ensure, by selective reception, that each cell shall affect the corresponding magnet at the receiver. At the receiving end, each tuned aerial circuit includes an interrupter and is connected to the input of an amplifier having a second grid connected to the plate as in Fig. 4. The plate circuit includes the primary of a transformer, the secondary of which is in circuit with the appropriate electromagnet.
Patent GB-874250-A (GB)
Title: Improvements in or relating to diamond abrasive articles
Inventor: CANTRELL JOHN
IPC: B24D3/34
Filed: 1959-04-23
Abstract: An abrasive article such as a grinding wheel comprises diamond grains bonded by a resinoid metal or ceramic bond and up to 5% of boron nitride.  The powdered constituents are hot pressed and bronze containing boron nitride is given as an example of a metal bond.ALSO:An abrasive article such as a grinding wheel comprises diamond grains bonded by a resinoid metal or ceramic bond and up to 5% of boron. nitride.  The boron nitride is incorporated with the other powdered ingredients, and the mixture is hot pressed in the conventional manner.  Bronze containing boron nitride is given as an example of a metal band.
Patent GB-792165-A (GB)
Title: Improvements in or relating to resistance welding
Inventor: CAMPBELL JAMES R
IPC: B23K11/00
Filed: 1956-05-04
Abstract: 792,165. Composite metal sheeting. FAIRCHILD ENGINE & AIRPLANE CORPORATION. May 4 1956, No. 13897/56. Class 20(2). [Also in Group XXII] A compound plate comprises a honeycomb core formed of strips 11 of stainless steel foil, say 0.002 inch thick, welded at contacting points 12 sandwiched between stainless steel plates 15, 16, of say three to eight times the thickness of the foil, and joined to the edges of the strips 11 by electric resistance welding (see Group XXII) The strips 11 are coated with highly electrically conductive layers 13 of a metal such as copper, silver, gold or aluminium to facilitate the welding to the plates 15, 16.
Patent GB-166411-A (GB)
Title: Improvements in cradle frames for automobile bodies
IPC: B62D25/04
Filed: 1920-05-20
Abstract: 166,411. Ledwinka, J. May 20, 1920. Bodies.-For strengthening automobile bodies at the door openings, the door posts are formed of vertical uprights of a U-shaped cradle frame which has an integral cross connecting member. The uprights 21, Fig. 5, are formed of channelled sheet metal shaped to the body outline to include both door posts and side, and are connected across the vehicle by members 22 of channelled sheet metal having flanges 23 which rest on and are welded to flanges 24 on the uprights. Angle plates 25 welded to the uprights support the floor and an angle plate 26 welded to the bottom closes the opening outside the chassis. A padding member 27 may be inserted. The body shell 28, Fig. 8, is secured to the uprights 21, which are pressed to form, or constructed to carry a lug or other engaging device 34 for the door lock 31, and a seat for co-operating with the dovetail guiding projection on the door. Each upright may also carry a rubber cushion and, if desired, may have a wooden filling portion 37 between the metal sheets 28, 38.
Patent GB-256356-A (GB)
Title: Improved grid leak attachment for fixed condensers
IPC: H01G2/00
Filed: 1925-05-28
Abstract: 256,356. Elwood, H. S., and Hough, T. May 28, 1925. Composite units.- To the terminals d, e of the condenser, which is preferably of the type having a casing of moulded material, are attached clips a, b and a third clip c is secured to the casing. To use the leak g in parallel with the condenser, the leak is inserted in aligned apertures in lugs a<2>, b<2> on the clips a, b respectively, and in series, the leak is inserted in aligned apertures in lugs a<2>, c<2> on the clips a, c respectively, or if desired two leaks could be used at the same time, one in series and the other in parallel. According to the Provisional Specification, one clip and co-operating lug on the other clip are dispensed with and the parallel position got by using the other lug and clip with a connection between the latter and the terminal screw of the condenser.
Patent GB-139584-A (GB)
Abstract: 139,584. Robinson, T. Feb. 18, 1919. Frying - ranges; doors, lids, and covers; air supply and draught, regulating and inducing; ventilating cooking-stoves; condensation collectors. - A range for frying fish and potatoes is modified in a number of details. The range shown has three frying-pans A, an oven B for keeping fish warm, and three ovens C and three boxes C' for the potatoes. Each of the pans has a separate fire-box D, and has a flange a which supports it on the plate E above the fire-boxes. Each fire-box and ash-pit has a sliding door d<3>. Each fire-box has a well d and a setting d' which is raised so as to cause the flames &c. to pass across the bottoms of the pans. Thence the gases pass into flues F, vertical branches f<1>, and the main flue f<2> leading to the chimney; a branch on the flue f<2> contains a motor-driven suction fan f<3>. Each flue has at its front end an air-inlet valve which is opened to control the draught. These valves, as shown in Fig. 2, consist of plugs f<5> with tapered apertures f<7> which are uncovered as the plugs are drawn out. The fire and ash-pit doors have each a lip d<6>, Fig. 4, which enables it to move on a ledge d<7> on the front of the range. Projections d<8> on the doors pass under a rod d<9>, which fits into semicircular recesses in lugs d<10> on the front of the range, and is secured by screws d<11>. The flues F between two fires are separated by a partition f<8>, and are arranged so as to heat the ovens B, C and the potato-boxes C'. Each box C' has a lid in two parts c<1>, c<2> with hinges c<3>, c<4> which enable the boxes to be wholly or partly opened. Each pan A has a removable cover a<1>, a hinged lid a<2>, and a removable dome a<3>, through which the steam &c. passes to pipes a<4>, a<5>. The pipe a<5> falls gradually from left to right, and its lower end passes through a cold-water tank a<6>, Fig. 1<a>, and is fitted with a trap a<7> to divert the condensed water to a tank a<9>. The range may be placed in a shop so that the cooks face the customers, the back G of the stove serving as a counter.
Patent GB-245343-A (GB)
Title: Improvements in or relating to coffee infusers
IPC: A47J31/02
Filed: 1925-05-28
Abstract: 245,343. Amstutz, A. May 28, 1925. Infusers.-A coffee infuser comprises a water reservoir a having a flat bottom adapted to rest on the top of a coffee pot h, the bottom a being formed with a perforated cylindrical extension d upon which the mouth of a coffee container f, through which the water from reservoir a percolates, is frictionally fitted so as to be suspended within the coffee pot. Reservoir, a may be provided with a handle c and a lid b, and extension d and container f may have perforated bottom plates e, g.
Patent GB-821637-A (GB)
Title: Improvements in or relating to magnetic core memory assemblies
IPC: G11C5/05
Filed: 1956-05-07
Abstract: 821,637. Magnetic information storage apparatus. INTERNATIONAL BUSINESS MACHINES CORPORATION. May 7, 1956 [May 10, 1955], No. 14026/56. Class 40 (9). [Also in Group XXXVI] A magnetic matrix store comprises toriodal ferrite cores which are located in annular recesses in an insulated plate and have associated circuits formed by a photo-printing operation. As shown in Figs. 1 and 2, the cores 10 are associated in the usual manner with read and write windings X1-X4, Y1-Y4 in columns and rows and with an inhibit winding z which permits parallel operation with similar stores. Alternative wiring arrangements of a sense winding S to improve the signal to noise ratio are shown. The insulated plate 20 consists of a photo-sensitive glass or moulded plastic, the annular core recesses 30, Figs. 4a, 4b, and holes 32 for the printed conductors being formed by etching with hydrofluoric acid after the plate is subjected to ultra-violet light through a negative hole pattern. It is stated that the portions of glass exposed to ultra-violet light etches away at a considerably higher rate. The toroids are fitted in the recesses by shaking the plate and are secured by an overall covering of paraffin wax. The assembly is then oxidized by dipping in chromic acid, followed by washing in water, to permit the application of a precipitated silver coating. A film of photo-resist such as an aqueous solution of gelatin or polyvinyl alcohol to which potassium dichromate is added is next applied to the silver coating, and the assembly is exposed to ultra-violet light through photo-positives of the circuit pattern positioned on each side of the plate. Subsequently, the plate is washed in water to remove the unfixed photo-resist which covers the regions where circuitry is required. The exposed regions, which include the inside walls of the holes 32, are thickened by copper plating to which a top flash of gold may be applied. The harder fixed photo-resist material is then removed by further washing and the background of silver exposed is removed by a quick wash in dilute nitric acid. The process is then complete and after further cleaning in water the assembly may be protected by a wax or lacquer coating. A number of completed matrix stores may be stacked by the use of rods 40 and spacers 41 as shown in Fig. 5 to form a parallel-access array; links being fitted between terminus holes 35. Specification 784,549 is referred to.
Patent GB-826429-A (GB)
Title: A device for sealing into the bore of a tube
IPC: F16L55/132
Filed: 1957-05-02
Abstract: 826,429. Stopping pipes or tubes. HAYWARD, F. G. H. May 2, 1957, No. 14047/57. Classes 99(1) and 99(2). A tube sealing device which may be used as a drain stopper or in testing tube joints comprises resilient rings 9 which are spaced apart on one end of a rod-like handle 1 which is rotatable to expand the rings radially to seal the internal surface of the tube such that one part of the tube bore is longitudinally separated from another part of the bore by a partition 3a, 3b associated with at least one of the rings. The rings 9 seat in grooves 10 formed in discs 6, 7 apertured to receive a rod 1 and in a hollow cylinder 2 which has a central bore 3 through which the rod 1 extends, the discs being located adjacent the end surfaces 3a, 3b of the cylinder. The rod 1 has a handle 13 at one end and a screw-threaded part 5 at the other and is also provided with a collar 4 which bears against the disc 6, the screw-threaded end 5 engaging the screw-threaded bore of the disc 7. Pins 11 extend from each end surface of the cylinder 2 through apertures in each of the discs 6, 7 to prevent relative rotation. A conduit 12 extends through the disc 6 and cylinder 2 to communicate with the space between the rings. Before the device is inserted into a tube it is located in its correct position adjacent the joint to be tested on the outside of the tube and the rod 1 marked so that on insertion into the tube the discs 6, 7 will be correctly positioned. The diameters of the cylinder 2 and discs 6, 7 are slightly less than the internal diameter of the tube and when inserted the handle 13 is turned so that the disc 7 and the cylinder 2 are urged towards the disc 6 thereby compressing the rings 9 which are forced outwardly against the internal tube walls. A pressure pump may be connected to the end 12a of the conduit 12 so that the joint under test may be subjected to the appropriate pressure. Additional sealing means may be provided on the rod and a cam arrangement may be employed instead of the screw-threaded means.
Patent GB-879054-A (GB)
Title: Process for preparing 1-cyanobuta-1,3-diene
IPC: B29C39/00
Filed: 1960-04-21
Abstract: 1-Acetoxy-1-cyanobut-2-ene is thermally split to form 1-cyanobuta-1,3-diene and acetic acid by suddenly heating it, within a fraction of a second, by means of a hot current of inert gas having a temperature above 500 DEG C. to the necessary fission temperature of above 400 DEG C., the fission reaction is allowed to proceed at the fission temperature for 0.5-10 seconds, and the issuing gas mixture is cooled, washed with water, and the cyanobutadiene and acetic acid separated by distillation.  The preferred fission temperature is 450-650 DEG C.  Suitable inert gases, which are preferably initially at 700-1000 DEG C., are argon, nitrogen, carbon monoxide, carbon dioxide, combustion gases, or burnt gases of carbon monoxide, methane or illuminating gas.  The gaseous mixture leaving the reaction chamber is preferably cooled to 20-70 DEG C. by spraying in water or aqueous acetic acid.  The cyanobutadiene and acetic acid are separated by distillation, the former as an azeotrope with water; a polymerisation inhibitor is preferably present.
Patent GB-474520-A (GB)
Title: Improvements in or relating to devices for the display of advertisements, notices and the like
IPC: G09F11/12
Filed: 1937-05-20
Abstract: 474,520. Moving signs. MATTHEW, R. J., CLARK, E., SMITH, A. J., and MIZON, K. L. May 20, 1937, No. 14098. [Class 3 (i)] Two parallel endless chains 4 travelling round sprockets 5, 6 carried by parallel shafts 7, 8 have mounted between them on each link an outwardly extending member 11. Between each pair of adjacent members 11 is held removable by clips 15 a bendable display sheet 17. The tips of the members 11 in the course of their travel around the shafts 7, 8, anticlockwise in the Figure, come in succession into engagement with a catch and release device 16. On release from this device, the member 11 drops by gravity and stretches the display sheet between it and the following member so that it can be viewed through a window 3 in a casing 1. The members 11 may be in the form of frames carrying a cross-bar on which the clips 15 are mounted, or may have other configurations. The sheets 17 may be of fabric with a folding crease 18 attached to its rear at the middle, or may consist of two boards hinged together. The drive may be through the shaft 7 or by a push applied to the tips of the members 11, or by both these means. The catch and release device may consist of a star-wheel 16 driven in unison with the shaft 7, or may be a spring detent. The sheets 17 may carry objects for display. Lamps may be fitted and be adapted to be switched off temporarily by each member 11 during its fall. A pawl- and-ratchet on the sprockets 6 prevents backlash, and the chain 4 is tensioned.
Patent GB-1025161-A (GB)
Title: Improvements in or relating to parachute harnesses
Inventor: PRAGNELL JOHN JAMES MUIR
IPC: B64D17/22
Filed: 1964-04-06
Abstract: 1,025,161. Parachute harness. IRVING AIR CHUTE OF GREAT BRITAIN Ltd. March 8, 1965 [April 6, 1964], No. 14101/64. Heading A3V. Parachute harness includes two main suspension straps 1 secured to each other below the point of attachment 9 of shoulder straps 8 only by means of a quick release box 5. Further straps 3, are secured to the box by lugs 15 and to the straps 1 by stitching or adjustably by a buckle similar to buckle 10. Lower portions 6 of the straps 1 constructing. leg loops are formed with loops 7 through which the straps 4 are passed and are themselves passed through a strap 16 depending at the rear from a waist band 11 which is a continuation of the shoulder straps 8. The shoulder straps 8 may (not shown) also be integral with straps 3 which are adjustable in length. One end of the waist band 11 is threaded through a fixed member 12 on the quick release box and a lug 13 on the other end carries a ring 14 which is slipped in to the lug 15 of the adjacent strap 3 before it is connected to the box 5. A reserve parachute may be connected to the harness by rings 18 secured, one permanently at 19 (Fig. 5, not shown) and one detachably at 20-24, (Fig. 6, not shown) to straps 3 at their junction with main straps 1. A safety clip 25, Fig. 6, secured to cord 23 must be withdrawn from the box 5 before the other strap can be released. Alternatively a reserve parachute is connected to D-rings on the straps 1 by a quick release means. A further D-ring may be provided on each strap 1 for attaching weapons or packages.