baber/WOPTO huggingface dataset:
Patent GB-762459-A (GB)
Title: Improvements in or relating to boilers or furnaces
IPC: F23L9/00
Filed: 1952-11-07
Abstract: 762,459. Air supply for combustion. BARNETT, L. Nov. 30, 1953 [Nov. 7, 1952], No. 28050/52. Class 51 (1). A boiler furnace of the horizontal type, e.g. Lancashire, comprises an air heating chamber which takes the place of the crown and/or cheek baffles and which is located at the firebridge end within the furnace and has numerous outlets arranged to deliver heated secondary air forwardly over the fire bed and a similar air heating chamber at the front of the furnace delivering heated air rearwardly over the fire bed. As shown in Fig. 1 a boiler furnace 1 has air heating chambers 2, 2a, arranged to deliver through outlets 3 heated secondary air forwardly and rearwardly, respectively, over the fire bed 4. Pipes 5 couple the chambers 2, 2a, to a common valvecontrolled air intake (not shown) which may operate on forced, induced or natural draught. Alternatively the chambers 2, 2a, may have separate valve-controlled air intakes so that heated air may be delivered from either or both ends of the fire bed and at a selected velocity or quantity to maintain accurate control. Fig. 2 shows a boiler furnace 6 with side flues such as 7. In this boiler the pipes 5 open into a drum front 8 into which air is delivered from a blower unit 9 via a pipe 10 lying in a side flue 7 and a control valve 11, the air being heated whilst passing through the pipe 10. Specification 570,571 is referred to.
Patent GB-406947-A (GB)
Title: Improvements in or relating to damping brushes
IPC: B43M11/00
Filed: 1933-10-11
Abstract: 406,947. Coating webs. TIMMIS, A. H., 101, Harrow View, Harrow, Middlesex, and HAMILTON & CO. (LONDON), Ltd., 116, Clerkenwell Road, London. Oct. 11, 1933, No. 28082. [Class 140.] A damping brush for use in a mechanical damping device for gummed paper strip or like material is constructed of bristles 2 which are entirely or for a large part (up to 50 per cent) disposed each with the thicker end outermost. Gummed strip is passed over the brush and severed by being torn along the edge of a knife 3.
Patent GB-1038880-A (GB)
Title: Improvements relating to control and switching devices for traversing mechanisms in textile spinning and ring twisting machines
IPC: D01H1/36
Filed: 1963-07-16
Abstract: A hydraulic piston 3 (Fig. 1, not shown) attached by its rod 1 and a belt 4 to a traversing member, e.g. a ring or spindle rail, has its direction of movement controlled by a control piston 34 which in turn is controlled by solenoids 35, 36 connected to limit switches 7, 8. The limit switches are operated alternately by a member 6 on the piston rod 1 and are moved during the build to produce a shaped package.  The switches may be moved by chains, pinion racks or control plates or, by threaded spindles 11, 12. In their movement, switches 7, 8 actuate further switches 17, 18, 19, 20 which determine the initial and final positions and at the end of a build cause the switches 7, 8 to be wound back to their starting positions.  Each spindle 11, 12 is driven by one of two D.C. motors 22, 23 and 24, 25, the motors being operated in accordance with a preset programme to produce a desired build. The programme is determined by an impulse generator 49 or 50 (Fig. 2, not shown) which may be operated magnetically, photo-electrically or mechanically to supply impulses proportional to thread delivery speed.  Alternatively the generator may be in the form of a magnetic tape or a perforated card.
Patent GB-265676-A (GB)
Title: Improvements in or relating to grid leaks, variable condensers and resistances for use in connection with radio apparatus
Filed: 1925-11-09
Abstract: 265,676. Winter, R. H., and Daly, H. C. Nov. 9, 1925. Condensers.-In variable electric resistances or condensers of the type in which the resistance or capacity is varied by compressing a conical spring the spring is mounted in an insulating casing containing a stationary element serving as the resistance element or the second plate of the condenser and is operated by means of a screw threaded member acting on its apex. Fig. 1 shows a resistance element comprising a disc of fibre &c. 1 coated with Indian ink or the like connected to a central terminal 2 and cooperating with a conical spring 7 operated by a screwed spindle 10 passing through a nut 12. to which is connected a terminal 15. For a condenser the disc 1 is replaced by a metal plate covered with a sheet of mica or the like. For the screw 10 may be substituted a spindle with a helical groove into which projects a pin attached to the apex of the spring 7. A vernier adjustment may be provided by connecting the spring to the screw device through an adjustable sleeve.
Patent GB-746785-A (GB)
Title: Improvements relating to fuel injectors for diesel and other internal combustion engines
Inventor: LIARDET GODFREY EDWARD
IPC: F02M61/12
Filed: 1953-10-13
Abstract: 746,785. Fuel injectors. SIMMS MOTOR UNITS. Ltd. Oct. 13 1954 [Oct. 13, 1953], No. 28193/53. Class 7(3) A fuel injector comprises a stationary needle valve 2 co-cperat ing with a spring. loaded nozzle member 3 which is moved down. wardly off the valve by the fue: pressure during injection The fuel passes down a passage 9 in the valve 2 and through orifices 10 into an annular passage surrounding the valve 2, leakage along the valve being prevented by a sealing ring 22 seated in recesses 20, 21 in the valve and valve body. Passages 14 transmit the fuel pressure to the inner surface of the ring 22 to force it against its confining surface.
Patent GB-766190-A (GB)
Title: Improvements in or relating to methods of sterilizing hollow articles
IPC: A23L3/28
Filed: 1954-10-01
Abstract: <PICT:0766190/III/1> Articles are sterilized by ultraviolet radiation in range 1800  -3000  and ozone produced by the radiation in the presence of air and at a temperature of 80 DEG C., maintained by the energy from the lamp.  Articles 9 are conveyed through tunnel 1 on an endless steel wire 2 and irradiated by high pressure mercury discharge tubes 13 which emit some radiation at least in the range 1800-2000 .
Patent GB-538185-A (GB)
Title: Improvements relating to the production of cellulose
IPC: D21C3/22
Filed: 1939-10-20
Abstract: 538,185. Refining cellulosic materials. HIGGINS, E. B. Oct. 20, 1939, No. 28345. Convention date, Oct. 20, 1938. [Class 2 (ii)] Wood, straw, or the like non-textile vegetable material of cellulose having a low content of resin, lignin, and other impurities or pulp made therefrom is treated with a solution of caustic soda or other alkali in which is incorporated a dispersing agent and a quantity of a metal hydroxide capable of separating the resin matter and other accompanying substances from the material treated. The metal hydroxide added to the alkali solution may be aluminium or calcium hydroxide. Aluminium hydroxide or sodium aluminate may be added as such to the caustic soda solution or may be formed in situ by adding aluminium oxide or a soluble aluminium salt, e.g. the sulphate. The wood or other starting material may be subjected to a chemical pulping operation before being subjected to the process of the invention. Sulphite, sulphate, or soda pulps may be treated. The treated material is suitable for the production of artificial silk by the viscose, acetate, or other processes. The dispersing agent may be sulphonated castor or other sulphonated oil. In an example, a sulphite wood pulp is boiled under pressure with a solution of caustic soda, " Monopol soap (Registered Trade Mark), and sodium aluminate. It may subsequently be subjected to a bleaching treatment. Specification 339,850, [Class 2 (ii)], is referred to.
Patent GB-754625-A (GB)
Title: Improvements in or relating to gating circuits for selecting electric pulses
Inventor: BAILEY CHRISTOPHER EDMUND GERV
IPC: G01S13/70
Filed: 1954-10-01
Abstract: 754,625. Thermionic distributers. MULLARD RADIO VALVE CO., Ltd. Oct. 1, 1954, No. 28350/54. Drawings to Specification. Class 40 (3). [Also in Group XL (c)] A distributer for a pulse time multiplex system comprises a number of beam-and-parallelslot C.R. discharge tubes of the type in which a cathode beam which is strap-shaped passes through a slot parallel to the cross-section of the beam in a plate to produce an output signal only when the voltages applied to two deflecting plates are equal. One deflecting plate of each tube has a sawtooth voltage applied to it and the other has a D.C. biasing voltage of which the value increases successively for successive tubes. Thus when a time multiplexed pulse train is applied to modulate the cathode-ray beam in the tube the first pulse on the train will appear as an output at the first tube and each successive pulse will appear at the output of the respective tube.
Patent GB-629589-A (GB)
Title: Improvements in or relating to windscreens for aircraft, motor cars and motor boats and the like
IPC: B60S1/02
Filed: 1945-10-26
Abstract: 629,589. Windscreens. FAIREY AVIATION CO., Ltd., GOTT, G. E., and HODSON, C. F. Oct. 26, 1945, No. 28385. [Class 20(iii)] [Also in Group XXIII] A windscreen comprises a transparent disc rotatably mounted about its centre with its front surface in advance of the plane of the screen, and has aerodynamic rotating means comprising a number of quarter-spheres arranged round and mounted on the disc, each with one of its diametrical plane surfaces in the plane of the front of the disc and its other such surface disposed radially of the disc and normal to the plane thereof. A disc 10 of transparent material is mounted in front of the screen 12 to rotate on a spindle 11, and is provided with a plurality of solid or hollow quarter-spheres 13 arranged as shown with one flat face in contact with the disc. In use, the air flow passes across the disc and causes it to rotate clockwise owing to the greater resistance of the flat (or hollow) faces of the quarter-spheres. Each quarter-sphere is pivoted at 14, the pivot lying between the flat face and the centre of gravity, so that it tends to rotate anti-clockwise by the action of centrifugal force. A pivot pin 15 fixed to each quartersphere slides in a groove 16 in the disc and is attached to a link 17. The links 17 at the other end are pivotally connected to a disc 18 rotatable through a small angle with respect to the disc 10, this rotation being opposed by a spring 19. When the quarter-spheres have rotated through 90 degrees (their rotation being synchronised by the links 17), they are symmetrical with respect to the air flow, which produces no turning moment. By adjustment of the spring 19, a predetermined steady speed of rotation of the disc 10 is obtained, independent of the airflow speed. A guard 20 is provided to cover part or all of the gap between the disc 10 and the screen, the front surface of the guard being disposed rearwards of the front surface of the disc. The disc may be mounted in an aperture in the screen, the disc and screen being formed with interengaging parts to form a substantially fluid-tight joint. The Provisional Specification refers to Specification 590,212, [Group XXIII].
Patent GB-445040-A (GB)
Title: Improvements relating to trailer vehicles convertible into caravans
IPC: B60P3/34
Filed: 1934-10-04
Abstract: 445,040. Caravans. YOUNG, E. W. J. J., 9, Ulster Gardens, Willowbrae Road, Edinburgh. Oct. 4, 1934, No. 28389. [Class 108 (i)] In caravans having a lower floored section and an upper roofed section telescopically movable over the lower section the upper section is locked against movement relatively to the lower section by providing on one of the sections a number of vertical bars provided with recesses or apertures for the reception of locking pawls or detents. The upper portion 12 is raised by means of cables, &c. 16 attached to its lower edge and passing over pulleys 17 to a winch or the like 13 mounted on a shaft 14 on the lower portion 10. The door is in two parts of which the upper part 27 is hinged to the vehicle while the lower part 28 engages the upper part by means of co-operating channel guides 29, 30 and the two parts of the door may be held in desired relation by means of a pin &c., on the lower part engaging an apertured bar 34 carried by the upper part. The upper portion 12 is provided with spaced bars 22 which pass through slots 24, Fig. 3, in bars 23 carried by the lower portion and the two portions are held in extended position by locking pawls or detents 26 passing into apertures 25 in the bars 22. A moulding strip 35 may be hinged or fixed to the top of the lower portion to engage the upper portion for draught-excluding purposes.
Patent GB-533601-A (GB)
Title: Flour sifter
IPC: A47J43/22
Filed: 1939-10-21
Abstract: 533,601. Sifting-apparatus. NAKAHIRO. G. Oct. 21, 1939, No. 28416. [Class 117] A flour sifter comprises a sieve A reciprocating on guides 9 in a casing 7, in the lower part of which is a drawer B for the collection and storage of the sifted flour. Underneath the sieve are disposed plates hinged on rods 13 which are adapted to be swung around the rods and form a solid surface under the sieve by mechanism operated by the opening of a hinged lid 8. This mechanism comprises a cranked rod lying transversely under the plates and pivoted in the sides of the casing. An arm 20 on one end of the cranked rod is guided by a bail 19 and carries a loop 24, which is engaged by a hook 25 on a link C hinged to the lid on the upward movement thereof. In their open position, the plates act as a lock to prevent removal of the drawer.
Patent GB-335997-A (GB)
Title: Improvements in and relating to electrical musical instruments
IPC: G01V3/14
Filed: 1929-04-02
Abstract: 335,997. Martenot, M. L. E. April 2, 1928, [Convention date]. Divided on 308,988. Electrically-vibrated instruments. - In a keyboard electrical musical instrument utilizing oscillating currents, the keyboard is also movable as a whole by the operator's hand to actuate condensers, inductances, or resistances so as to vary the frequency or intensity. Vibrato effects may thus be obtained. In the Figure, the keyboard 38 is movable in any direction in a frame 39, being returned to its first position by springs 41, 41<1>, and is connected by a lever 43 to the movable elements of a variable condenser 44. The keyboard may be divided into separate octaves similarly connected.
Patent GB-887217-A (GB)
Title: Improvements in or relating to the pickling of onions
IPC: A23B7/10
Filed: 1959-08-20
Abstract: Pickling onions involves steeping in vinegar in the presence of sugar for a period sufficient for maturing of the onions.  Brown sugar and malt vinegar are preferred.  Glass containers or wooden barrels may be used.  Preferably, alternate layers of onions and sugar are placed in the container, and vinegar is poured in until the top layer of onions is covered.
Patent GB-733804-A (GB)
Title: Improvements in or relating to suction cleaner nozzles, having brushes therein
IPC: A47L9/06
Filed: 1952-11-12
Abstract: 733,804. Suction cleaner nozzles. WESSEL, H. Nov. 12, 1952 [Nov. 12, 1951], No. 28556/52. Class 8 (1). A suction cleaner nozzle comprises a body 6 having a connection 1 to a source of suction and concentric cylindrical inner and outer walls 2, 2<SP>1</SP> forming an annular suction inlet 7, and a brush carrier 3 with a ring of bristles 12 seated within the inner wall 2, e.g. in a groove 4 formed by a bead 5 and an inturned flange. As shown, the connection 1 is integral with the body 6 which is of rubber and the walls 2, 21 are held spaced apart by ribs 8, and the carrier plate 3 may have an auxiliary suction inlet registering with a central body opening 9. In a modification the connection to the source of suction is of rigid material and has an outwardly directed rim engaging an annular groove in the nozzle body which is of rubber having the brush carrier integral therewith.
Patent GB-1094259-A (GB)
Title: Improvements in or relating to apparatus for cleaning footwear
IPC: A47L23/26
Filed: 1965-07-06
Abstract: 1,094,259. Footwear cleaning machines; brushes. H. C. LIGHTOWLER. July 6, 1965, No. 28570/65. Headings A4F and A4K. A footwear cleaning device comprises an endless belt 2 provided with bristles 42 and transverse ridges and mounted on rollers 21 within a casing, the belt 2 being driven through belts 11 by an electric motor 3 which is energized by a switch 29 which is closed when the sole of an article of footwear is placed by the wearer on the upper run of the belt 2. In opera- . tion, dirt from the sole of the footwear is either wiped into a heel recess 37 from which it falls through perforations into a tray 15 removably mounted in the base of the casing or is carried along on the belt 2 from which it is removed by a scraper 36 or by cleaning ridges and bristles 35, 34 mounted in the tray 15. A spring engaged roller 30 maintains the belt 2 in contact with the cleaning ridges and bristles 35, 34 and further spring mounted rollers 25, 26 sense the presence of footwear on the belt 2 and jointly actuate the switch 29. To facilitate the dismantling of the device the rollers 21 are mounted on side plates 20 which are removably attached to the inside of the casing.
Patent GB-428769-A (GB)
Title: Improvements in and relating to electric control systems
IPC: G05D3/12
Filed: 1933-10-16
Abstract: 428,769. Converting - arrangements. BRITISH THOMSON - HOUSTON CO., Ltd., Crown House, Aldwych, London.- (Assignees of Mittag, A. H. ; 1455, Dean Street, Schenectady, New York, U.S.A.) Oct. 16, 1933, No. 28612. Convention date, Oct. 15, 1932. [Class 38 (ii)] [See also Groups XXXVII and XL] In a system in which current is supplied through at least two electric valves arranged to supply current in respectively opposite directions, the grid of one valve being supplied with a positive potential while that of the other valve is supplied simultaneously with a negative potential, means, such as electric glow discharge devices, are provided for preventing the negative potential on the grid of a valve from attaining a value which would render the valve conducting. The invention is described in connection with a follow-up system. Upon movement of a transmitter 33, a voltage induced in the rotor 38 of a receiver 34 is applied to the grids of valves 16-19, to which a bias is applied from a transformer 32. Thus the phase of the grid voltage of one pair of valves e.g. 16, 17, is advanced and that of the other pair retarded, so that a motor 10 is supplied with current in the corresponding direction, and operates the receiver until the follow-up movement is completed. Glow discharge devices 43-46 are connected between the grids and cathodes of the valves to conduct current before the negative voltage attains the critical value at which a valve would break down. The discharge devices 43-46 may be replaced by non-linear resistances composed of silicon carbide crystals held by a suitable binder.
Patent GB-877614-A (GB)
Title: Improvements relating to releasable attachments
Inventor: MOBSBY PETER GEORGE
IPC: B60R22/32
Filed: 1958-09-05
Abstract: 877,614. Releasing bombs from aircraft. VICKERS-ARMSTRONGS (AIRCRAFT) Ltd. Aug. 27, 1959 [Sept. 5, 1958], No. 28620/58. Class 9(2). [Also in Group XXV] An attachment suitable for releasing bombs missiles, parachutes and the like comprises a load-suspending member releasably connected to a plunger which is supported on a sealed collapsible liquid-filled container, and means for puncturing the container so that collapse of the container will allow movement of the plunger and consequent disengagement of the load-suspending member. Fig. 1 shows a plunger 131 resting on an oil-filled bellows 11 and supporting through a rod 13 and collets 18 a load-carrying member 17. Release of a spring loaded striker 21 punctures the bellows and releases catches 14; downward movement of the plunger then allows the collets to open and release the member 17. Fig. 2 shows solenoids 26 whose operation releases catches 14 and also releases plungers 27 supporting part of the bellows; internal pressure then punctures the bellows, plunger 131 moves down and collet 18 breaks at 184, releasing the member 17.
Patent GB-244899-A (GB)
Title: Improvements in strap and like fastenings
IPC: A41F3/02
Filed: 1924-11-29
Abstract: 244,899. Stanley, F. Nov. 29, 1924. Braces.-A, fastening device for connecting the front button tabs to the shoulder straps of braces comprises a ring 2, Fig. 2, carrying the tabs 1 and having an inwardly-projecting tongue 3 adapted to engage any one of a series of holes 5 in the shoulder strap. A device for use at the back of the braces comprises two sector-shaped members 6, 7, Fig. 5, pivoted together at 8, the member 6 connecting the shoulder straps at the back and the member 7 carrying the rear tabs. The member 7 is preferably cranked so that the two members lie in the same plane.
Patent GB-706968-A (GB)
Title: Apparatus and method for cutting materials
IPC: G01N1/06
Filed: 1952-11-13
Abstract: 706,968. Microtomes. DIXON, M. G., (Custom Scientific Instruments, Inc.). Nov. 13, 1952, No. 28635/52. Class 97(1) [Also in Group VIII] A microtome comprises a semi-cylindrical guide slot 76 through which material 70, e.g. metal foil, is fed by means of a roller 77 to a blade 67 mounted on a high-speed rotor 10. The axis of the guide slot is preferably slightly offset from that of the rotor. The rotor and roller are driven from independent variable-speed rotors. Filaments are blown out of the path of the blade through an exhaust opening by means of compressed air supplied through a duct 95. In a modification. Fig. 5 (not shown), the roller has a recess the curvature of which corresponds to that of the guide slot. Specification 650,249 is referred to.
Patent GB-1375897-A (GB)
IPC: C09D163/00
Filed: 1972-06-19
Abstract: 1375897 Coating composition AMERICAN CAN CO 19 June 1972 28653/72 Headings C3B and C3R A coating composition for inhibiting corrosion on a substrate comprises: an epoxy resin, a urea/formaldehyde resin and barium borate, esp. barium metaborate BaO.B 2 O 3 .H 2 O which may comprise 12-24% by wt. of the composition.
Patent GB-533456-A (GB)
Title: Cinematographic apparatus
IPC: G03B41/08
Filed: 1939-10-25
Abstract: 533,456. Kinematograph apparatus. KUDAR, J. Oct. 25, 1939, Nos. 28667 and 28668. Convention dates, Nov. 10, 1938 and March 13, 1939. [Class 97 (i)] In continuous-feed apparatus wherein compensation is effected by a rotating prism, the prism and a film-feeding sprocket are arranged on a common shaft. As shown in Fig. 1, the prism 2 and sprocket 3 are arranged side-byside on a shaft 1, and a prism 32 reflects the beam from an objective 28, after passage through the prism 2, on to a film carried by the sprocket. If the apparatus is a projector, a light source 35, a rear reflector 36, and a reflector 37 within the sprocket may be provided, the sprocket being made up of two rings of circular or polygonal form carrying teeth 16 and connected by cross bars. The reflector 37 may be arranged so that the beam passes diametrically through the sprocket, the light source &c. being displaced accordingly, or may be replaced by a reflecting prismatic ring rotating with the sprocket. Figs. 5 and 6 show a modification in which the film 48 passes from the sprocket 47 to a flat gate 51, and a doubly reflecting prism 54 directs light from a source 56, after passage through the gate, on to the rotating prism 45. The prism may have a refractive index of 1.5 or 1.7, or more ; mathematical expressions for the distance between opposite faces of the prism are deduced in the Specification.