baber/WOPTO huggingface dataset:
Patent GB-778985-A (GB)
Title: Facsimile telegraph scanning apparatus
IPC: H04N1/17
Filed: 1955-09-02
Abstract: 778,985. Copying-telegraphy. CREED & CO., Ltd. Sept. 2, 1955 [Sept. 8, 1954], No. 25282/55. Class 40 (3). In copying-telegraph apparatus the beam from a light source which is focused on a transmitting or recording sheet is moved to scan successive lines on the sheet by a spherical reflector which is rocked to provide the forward and backward traverse of the beam, the other component of scanning being provided by progressive advancement of the sheet. The scanning is effected during the forward movement of the beam which is returned very quickly to its starting position. The light reflected from the scanning spot as it traverses the matter to be transmitted or reproduced is directed by a cylindrical reflector to the whole length of the light-sensitive area of an elongated photo-cell. The transmitting or recording sheet 44 is passed between a platen or support 14 and feed rollers 32, 34 driven by a motor 36 and mounted on shafts 28, 30 in brackets 26, 27 pivoted on a shaft 24. The roller 32 is slightly larger than the roller 30 and the roller assembly, when lifted by a handle 64, is retained in its raised position by a spring- biased detent 52 pivoted at 54 and engaging a stud 60 on the bracket 27. The detent 52 is released for the lowering of the roller assembly by upward movement of the projection 52b. The scanning beam from a tungsten arc lamp 76 is interrupted by a toothed disc 74 driven by a motor 72 and is reflected by an adjustable plane mirror, mounted in a casing 135, to a concave spherical mirror 120 mounted in a casing 122, Fig. 8, pivoted on a shaft 126 and operatively connected by a pin on a V-shaped frame 128 to a cam 104 having a spiral groove 105 with a quick-release portion 105a. The cam is driven from a motor 70 through a clutch 96 which is released by a pawl operated by a magnet in response to a phasing start signal. During the quick return movement of the beam 50, a projection 93 on a cam 91 closes contacts 95 to provide a blanking signal to suppress transmission during this period, as described in either of Specifications 729,783 and 739,594. The oscillated beam 50 passes through a longitudinal slit 150 in a cylindrical reflector 146 and through a slot 15 in the support 14 to impinge on the sheet 44 from which it is reflected to the cylindrical reflector 146 which directs a linear beam to the elongated cathode 162, Fig. 4, of the photo-cell 158. The cylindrical reflector, which may be coated with aluminium, is carried by arcuate plates 142 adjustably secured to slotted bars 154 which are supported by slotted vertical members 140, 141 fixed to the plate 14. The single photo-cell 158 may be replaced by a number of cells in series arranged to produce an elongated cathode member. The roller assembly carries a bar 62 having a white undersurface which is scanned when a sheet 44 does not cover the slit 15.
Patent GB-490174-A (GB)
Title: Improvements in abrading and moistening brushes
IPC: A46B5/02
Filed: 1937-09-17
Abstract: 490,174. Brushes &c. SAVOGRAN CO. Sept. 17, 1937, No. 25296. Convention date, June 21. [Class 19] An abrading and moistening brush adapted for use in removal of wallpaper, wax, or paint from surfaces, comprises stiff abrading bristles 2, Fig. 2, mounted in a stock 1 and surrounded by tough liquid absorbent sponge material 5 flush with the ends of the bristles. The material 5 is preferably cellulose sponge and the bristles 2 of wire. In a modification, Fig. 3, a block 10 of spongy material has numerous wires 12 extending therethrough. Specification 245,049, [Class 2 (ii)], is referred to.
Patent GB-966821-A (GB)
Title: Method and apparatus for sealing containers
IPC: B65D77/22
Filed: 1960-11-09
Abstract: 966,821. Seaming non-metallic sheet material. PLASTOMATIC CORPORATION. Nov. 9, 1960 [Dec. 15, 1959], No. 25313/62. Divided out of 915,596. Heading B5K. [Also in Division B8] A synthetic plastics container of the kind described in Specification 915,596 is sealed by feeding intermittently a continuous web 22 to a station 9 where arcuate cuts are made by knives on a reciprocable die 34 to partially outline a cover 15 which at the next station 21 is heat-sealed to an integral tear-off rim of the container 10 by a reciprocable die 26, drive rollers 28 again advancing the web and container to a transfer station 29 where a knife 31 enters a gap in the web formed by the leading arcuate cut, thereby separating the cover 15, as the web is drawn away past a roller 30. The container is supplied to the station 21 on a conveyer 33, on which it has been filled previously. In a modification, Figs. 5 and 7, a filled container is supplied by a transfer member 39 to a station 21A where the cover 15 is both stamped out from the web and heat-sealed on the container. The container is raised by a ring 44 resiliently supported on a structure 45 reciprocable through apertures in the surface 46 on which the container is located. The die 26A has a spring-loaded clamping ring 43 which holds the web 22 against a fixed plate 42. Having compressed the springs 52 on the ring 43 as it travels downward the die passes through the plane of the web 22, reaching the bottom of its stroke as the ring 44 yields, and thereby punches out and seals the cover 15. The ring 44 is then lowered to return the container to the surface 46. Should the container be filled with granular material, a resiliently mounted plate 55 engages the material to flatten it before the cover is applied. In a further modification, Fig. 6 (not shown), the filled containers are supported by their rims in apertures in a conveyer belt, the ring 44 engaging the lower face of the belt under the rim. After sealing, a vertically reciprocating platform raises the container out of the aperture, and a laterally reciprocating plate then pushes it on to a discharge conveyer.
Patent GB-1334902-A (GB)
Title: Control of beta gain factor of transistors
IPC: H01L27/082
Filed: 1971-04-19
Abstract: 1334902 Semi-conductor devices RCA CORPORATION 19 April 1971 [3 April 1970] 25313/71 Heading H1K A transistor comprises a semi-conductor body with a notch in one surface, the emitter region being formed around this notch. In a manufacturing method, collector and base regions are formed in a silicon body having a surface parallel to the (100) plane, with a masking layer 60 thereover. An elongated slot is removed from the masking layer, and using anisotropic etching a notch having sides 46, 48 parallel to planes of the (111) set is removed from the base region 40, and impurities diffused into the sides of the notch to form emitter region 52. The depth of the notch is determined by the width of the masking slot, and so the width of the base region, which is largely dependent on notch depth, may be easily controlled. Accurate determination of the base width enables high gain to be achieved. Several emitter regions may be formed in a single base region, or an integrated circuit may contain several transistors having different base widths formed using notches of different depths. Another integrated circuit may contain an ordinary transistor combined with the novel transistor.
Patent GB-982995-A (GB)
Title: Improved tubular film preparation using an internal shaping and cooling member having a mat surface
IPC: B29C48/10
Filed: 1961-07-13
Abstract: 982,995. Producing tubular film. DU PONT OF CANADA Ltd. July 13, 1961 [Nov. 3, 1960], No. 25348/61. Heading B5B. Tubular film of organic thermoplastic material is produced by continuously meltextruding the material through the annular orifice 2 (Fig. 1) of a die 1 in the form of a seamless tubular film 9 while at the same time pressurized air is introduced into the tube 3, issues above the die 1 into the zone P 1  located between the top of the die 1 and the bowl-shaped cooler 5, and flows upwards between the cooler 5 and the tubular film 9 into the zone P 2  above the  cooler 5. The rate of flow of air into the zone P 1  is sufficient to form a cushion of air between the tubular film 9 and the bowl-shaped cooler 5, the curved surface of which has been rendered matt by etching, by abrasives or by machining to minimize the " grabbing " tendency of the surface. The air is bled off from the zone P 2  into the atmosphere through the tube 4 which may be provided at its outlet with a valve or hydrostatic head of liquid adjusted to maintain the pressure in zone P 2  so that it is just lower than in the zone P 1 , but sufficient to keep the tubular film 9 inflated to the diameter of the top of the cooler 5. The tubular film is drawn vertically upwards by means of conventional nip rolls which flatten the film and prevent escape of air at this point in the usual manner. Water is circulated through the cooler 5, entering the cooler through the tube 14 and leaving the cooler through the tube 15. At the level when the tubular film 9 begins to expand it is cooled and partially set by a flow of air directed on to the exterior surface of the film by means of a conventional air ring or air jets (not shown). The curved surface of the cooler is preferably given a matt finish by grit-blasting it to a roughness of 20-150 microinches (r.m.s.) followed by plating with chromium. The film-forming material may be an ethylene-alpha-olefine copolymer, the alpha olefine containing, preferably, 3 to 8 carbon atoms in the molecule, e.g. butene-1. The roughening of the surface of the shaped cooler prevents flutter of the tubing with " grabbing " of the surface of the cooler so that clarity and gloss of the film are improved. Specifications 783,487 and 858,616 are referred to.
Patent GB-703509-A (GB)
Title: Heating apparatus
IPC: F23D5/00
Filed: 1951-10-30
Abstract: 703,509. Thermally-actuated valves. AMSTUTZ-LEVIN & CIE SOC. ANON. Oct. 30, 1951 [Nov. 20, 1950], No: 25372/51. Class 135 A heating apparatus comprises a valve 18, Fig. 4, controlling the fuel delivery, and having a handle 32 for selecting any one of a set of separate heating rates, a thermostat 44, Fig. 1, responsive to the temperature corresponding to the rate selected and means readily operable for connecting a transmission member 54, 57, 31 attached to the thermostat with the handle. Water flows into a pipe 42, through a coil 41 in a firebox 34 where it is heated by a burner 2 and leaves via pipe 43, flowing over a thermal element contained in a casing 44. Before lighting the burner a lever 30 is moved to unlock a nut 29 and arm 31 from the handle so that by rotating the handle and stem 23 a suitably sized orifice 19 is brought opposite the fuel inlet 14. As the water is heated the thermostat moves a lever 54, an adjustable link 57. carrying a pointer 62 moving over a thermometric scale and the arm 31 loosely carried on the stem 23. When the pointer indicates the correct water temperature, the arm 31 is locked to the handle so that the fuel inlet valve 19 is controlled by the thermostat. Should the burner fail the thermostat closes the valve.
Patent GB-1008888-A (GB)
Title: Magnetically actuated valve assemblies
IPC: F16K31/08
Filed: 1964-06-19
Abstract: 1,008,888. Valves. GENERAL MOTORS CORPORATION. June 19, 1964 [June 19, 1963], No. 25593/64. Heading F2V. A magnetically-operated valve assembly has a valve member 26, Fig. 1, movable relative to a valve seat member 20 to open or close a passage 16 for fluid flow, one of the members being a permanent magnet and the other including a portion of ferro-magnetic material, and a control device 30 movable relative to the members to open and close the valve. The device 30 consists of a magnetic plate which is moved to modify the magnetic flux between the valve member 26 and the lower portion 22 of the housing. The hole of the housing may be of non-magnetic material with a ring of ferromagnetic material mounted inside the lower part, the control device may consist of a permanent magnet rotatable about a. horizontal or vertical axis, and a fluid passage may be provided in the upper as well as the lower part of the housing, the valve member having a seal 28 on its upper as well as its lower face. In Fig. 5, the control device is formed by a cone 64 which is mounted inside a coil 62 and may be permanently polarized. In this construction and in that in which the control magnet is rotated about a horizontal axis the valve member is tilted while in the remaining constructions it moves parallel to itself.
Patent GB-639270-A (GB)
Title: Improvements in aerial systems
Inventor: CARY REX HENRY JOHN
IPC: H01Q13/18
Filed: 1947-09-20
Abstract: 639,270. Aerials. MINISTER OF SUPPLY. Sept. 20, 1947, No. 25650. [Class 40 (vii)] In an aircraft aerial formed by cutting a slot in the metal skin of the fuselage, the need to sever an airframe member where it bridges the slot is avoided by so forming the member, skin or slot that the impedance presented across the slot by that member is greater than a short-circuit. Fig. 1 shows a section through a fuselage perpendicular to a slot 4 cut in the skin 5. The frame member 1 is distorted by having a straight portion 3 out of contact with the skin between points 6 and 7. By this means the frame does not short-circuit the slot, but is connected with it by paths through the skin and acts effectively as a shortcircuited stub. With suitable choice of dimensions, the reactance thereby presented across the slot may be made high. Complementary reactances in the form of lumped components or short lengths of transmission line connected across the slot may tune the stub reactance. A metal box 8 forms a cavity behind the slot. In a second embodiment, Figs. 3 and 4 (not shown), the frame is undistorted, but an area of skin containing the slot is depressed so that it lies behind and out of contact with the frame. Neither the frame nor the skin is distorted in a third embodiment, Fig. 5, in which a stub slot 12 is cut at right angles to the main slot 4 and lies symmetrically about a frame member 1. The stub slot and that part of the frame embraced by it act as a length of short-circuited transmission line and may present a high impedance across points A and B. A shortcircuit strap 13 isolated from the frame may bridge the junction of the stub and main slots. If slot 12 itself extends through airframe members, such as a stringer 15, it is necessary to render the members electrically discontinuous or out of contact with the frame. In the various embodiments, the slots and the gaps between the frame and skin are preferably filled with insulation in order to strengthen the structure and maintain the fuselage contour.
Patent GB-1391463-A (GB)
Title: Photographic camera
IPC: G03B17/42
Filed: 1972-06-01
Abstract: 1391463 Camera mechanisms EASTMAN KODAK CO 1 June 1972 [2 June 1971]  25720/72 Heading G2A In a camera, the shutter cocking and film transport is effected alternately by actuating a manually operable handle twice in succession, the film transport mechanism including a rack which can be moved between an operative and a non- operative position by means which are also utilized for other camera operations. Fig.1 shows the mechanism after the shutter release has been operated. The rack 5, which can execute a sliding and a pivoting movement, is in its inoperative position. A shutter drive lever 2 pivots on a pin 8 and is spring-biased in the direction "M". A flash-firing lever 3 pivots on a pin 12 and is spring-biased in the direction "K": A shutter release lever 4 pivots on a pin 9 and is spring- biased in the direction "L". The manually operable handle 1 is a sliding plate having a generally triangular recess with an inclined cam surface 1a. Handle 1 is initially slid in the direction "H" from the Fig.1 position to the Fig.2 position, during which movement cam 1a engages a lug 2d of drive lever 2 and so pivots it into the Fig.2 position. As it pivots, an arm 2a disengages from a projection 5a on rack 5, so that this is now free to be drawn by a spring 6 into the Fig.2 position, in which it lies wholly against the housing wall 10a. Additionally, as lever 2 pivots, another arm 2b latches behind a lug 3a of lever 3, which lever has been pivoted into the Fig.2 position by an inclined rib 1d on handle 1, in which position lever 3 is retained by the end 4a of lever 4. Levers 2 and 3 now having both been cocked, the handle 1 is released, and is drawn back to the right into its Fig.1 position by a spring (not shown). When it is slid in direction "H" a second time, a lug 1b on the handle engages a lug 5b on rack 5 so that the rack is also driven in direction "H". A toothed portion 5d at the end of the rack engages with a toothed segment 11 which drives the film transport gearing 16, 17. As the handle is released and moves back again to the right, rack 5 is also drawn to the right by its spring 6. The mechanism is now ready for an exposure. When the release member (not shown) is actuated, lever 4 is pivoted anti-clockwise. This releases lever 3 to pivot anti-clockwise under spring 12, during which movement lug 3b causes a flash device (not shown) to fire, and lever 2 is also released. This is now free to be spring-driven anticlockwise, during which movement an arm 2c drives the shutter 7, and arm 2a engages projection 5a once more and draws the rack 5 downwards. All the parts are now back in the Fig. 1 position.
Patent GB-466248-A (GB)
Title: Improvements in steam power plants, especially turbine locomotives
IPC: F01K15/02
Filed: 1936-09-22
Abstract: 466,248. Steam turbines. VEILLON, H. ZOELLY-. Sept. 22, 1936, No. 25725. Convention date, Sept. 28, 1935. [Class 110 (iii)] In steam power plant, especially turbine locomotives, of the type comprising a main turbine 3 and two or more auxiliary turbines 5, 6, 12 for driving auxiliary plant, the steam for the auxiliary turbines is tapped off one of the stages of the turbine 3 by a pipe 4, and for all loads the auxiliary turbine 5 first traversed by the steam operates with a counterpressure below the critical valve, so that the weight of steam traversing this turbine per unit time is determined by the pressure of the steam tapped from the turbine 3, and the absorption capacity of the turbine 5 is independent of the counter pressure, whereas at least one of the following turbines, such as 6, operates at a substantially constant counterpressure above the critical valve, thereby enabling the auxiliary turbines to be governed automatically without governing devices in the steam pipes connecting them.
Patent GB-1329899-A (GB)
Title: Desiccant system for an open-cycle air-conditioning system
IPC: F24F3/147
Filed: 1971-04-19
Abstract: 1329899 Air conditioning units GAS DEVELOPMENTS CORP 19 April 1971 [31 March 1970] 25789/71 Heading F4V [Also in Division B1] An open-cycle air-conditioning apperatus with a first rotatable heat transfer, wheel a rotatable moisture transfer wheel, an evaporator heating means disposed between the wheels and means for recirculating air through the wheel on an input flow path and an exhaust flow path has a moisture transfer wheel constructed of appertured cellulosics, glass fibres, asbestos fibres synthetic plastic fibres or mixtures thereof and containing 1 to 90% of a crystalline powdered zeolite.
Patent GB-851613-A (GB)
Title: Improvements in timing control chains for electronic computers and the like
IPC: G06F1/04
Filed: 1957-08-16
Abstract: 851,613. Electronic commutator circuits for calculating apparatus. INTERNATIONAL BUSINESS MACHINES CORPORATION. Aug. 16, 1957 [Aug. 16, 1956], No. 25873/57. Class 106 (1). A timing control chain for an electronic computer or the like comprises a plurality of stages each including a bi-stable magnetic core device having a pair of imput terminals. a coupling element associated with each stage adapted to detect a change of state in the corresponding core device and to generate an output pulse in response thereto, and means connecting the coupling element of each stage to one of the input terminals of one of the two adjacent core devices selectively under the control of switching means. In the chain described, Fig. 4, every advance pulse resets the core 33 in the " one " state causing its winding 21 to apply a triggering pulse to an associated transistor blocking oscillator L which constitutes the coupling element. The output pulse from the blocking oscillator, which appears across its coil 37, is used (a) as an output pulse from that stage of the counter and (b) to set a further core in the chain in its " one " which further core can be either one of the two cores adjacent to the core 33 just reset or the core 33 itself depending upon which of three terminals labelled " backwards," " stop " and " forwards " is marked. Thus pulses can be caused to appear in succession at the output terminals or repeatedly at the same terminal. It is. also possible to cause no pulse to appear at any output terminal even though an advance pulse be applied by marking an " advance stop " terminal. All output pulses produced by the blocking oscillators are positively ended by reset pulses which are interleaved in time with the advance pulses. Application of an end pulse (that is a long reset pulse) causes the chain to be completely cleared. Any core can be set in its " one " condition by means of its winding 18. Diodes 25, 26 illustrate possible modifications to make stepping more reliable.
Patent GB-661254-A (GB)
Title: An improved spraying apparatus
IPC: B05B15/20
Filed: 1949-10-08
Abstract: 661,254. Crop sprayers; spray-producers. MALLOCH, G. Oct. 8, 1949. 25884/49. Class 69 (iii). A wind tunnel 10, provided with a high speed air screw 15, is pivotally mounted through pintles 13 on two supports 9 secured to a table 2. The table swivels about a stem 4, and a nozzle 27, having an axially adjustable spreader head 30, ejects liquid into the air stream. The screw 15 is driven by a motor 3 through a belt driven pulley 17, shaft 18 and gears 19. A pump 23 is also driven by the motor, and liquid is thereby fed from a tank 21 through a pipe 24, control box 25, and pipe 26 to the nozzle. The control box has a bye-pass 34 and valves controlling the liquid supply. A vehicle may support the apparatus, and the spray direction is controlled by a handle 40.
Patent GB-366493-A (GB)
Title: Improvements in or relating to electric service fuse boxes or cut-outs
IPC: H01H85/20
Filed: 1930-08-30
Abstract: 366,493. Fusible cut-outs. LOMAX, R., 2, Sherbourne Road, Cheadle Hulme, and DEAN, W. E. G., Craigside, Washway Road, Sale, both in Cheshire. Aug. 30, 1930, No. 25919. [Class 38 (i).] A pair of fuses in a box 14 are spaced apart to leave a dividing chamber 19 between them into which the service cable is passed by an opening at the bottom, a similar opening 15 at the top serving for filling the chamber with compound. The chamber 19 is separated from the fuses by walls 17 that form part of the fuse bases or are attached to a cover 21 for the chamber 19. Terminals 18b in the chamber 19 are each connected to one fuse contact, the other fuse contact being adjacent to outlet holes in both the side and end walls of the box. The fuses are carried by plates 23 that close the fuse compartments, and a cover 25 closes the box, being secured by bolts 20 that also secure the cover 21. The chamber 19 may open below into a transverse chamber having lateral cable inlet openings.