baber/WOPTO huggingface dataset:
Patent GB-201138-A (GB)
Title: Improved variable electrical condensers
Filed: 1923-03-22
Abstract: 201,138. Dubilier, W. July 20, 1922, [Convention date]. Condensers. - In a variable condenser of the kind in which the fixed and rotatable plates are separated by solid d dielectric material, resilient means are provided for effecting slight pressure between the contacting surfaces of adjacent members. The condenser shown in. Figs. 1 and 6 comprises fixed plates 3, 4, each consisting of a semi-circular sheet of metal foil interposed between a pair of mica discs, and a semi-circular movable plate 5 mounted on a shaft 6 which can be rotated by a knob 7. The plate 4 rests against a shoulder 1<a> formed on a casing 1 of hard rubber or other insulating material, the plates 3, 5 being mounted in a recess, the depth of which is slightly less than the combined thickness of the plates. A spring 8 mounted in a groove in the casing and soldered to a terminal 10 serves to retain the plates in position under slight pressure and to provide an electrical connection for the movable plate, the spring being provided with inwardly-extending fingers 8a for the latter purpose. The metallic elements of the fixed plates are connected to another terminal 9. In a modification, a number of parallel movable and fixed plates are provided in a single casing. Two cr more condenser units 20, 21, Fig. 8, may be connected together in superposed relation, the shaft 24 of each unit being provided with a squared shank 2@@<1> adapted to engage a square socket in the shaft of an adjacent unit, sc that the movable members of all the units may be simultaneously rotated.
Patent GB-1386232-A (GB)
Title: Fluid propulsion systems
IPC: F02K1/72
Filed: 1971-03-31
Abstract: 1386232 Thrust reverser; propelling ships SHORT BROS & HARLAND Ltd 27 March 1972 [31 March 1971] 8283/71 Headings B7G and B7V A fluid propulsion system comprises a rigid inner wall and an outer wall defining a flow passage 29, the outer wall comprising upstream and downstream portions 27, 30, the downstream portion being movable in an axial direction only between a position, Fig. 3 (not shown), in which it abuts the upstream portion and a thrust reversal position, Fig. 4, in which it is axially spaced from the upstream portion to leave an annular gap and in which it closes the flow passage to divert fluid flow through the gap. The flow passage 29 may be a by-pass duct between a cowling and an engine casing 25. The downstream portion 30 is formed with an upstream wall 32 mating with the downstream end of cowling portion 27 and having an inwardly extending wall 33 which in the thrust reversal position abuts a portion of increased diameter of the casing 25. The portion 30 carries jet deflector apparatus which is received in an annular cavity 40 in the cowling 27 in the cruise position and which comprises four arcuate assemblies 36 of circumferentially extending vanes 38 carried by axial beams 37 extending between the downstream portion 30 and an annulus 90; the two upper assemblies 36 also include axially extending vanes 39 which serve to direct reversed air away from the aircraft structure. The downstream portion 30 is moved by hydraulic actuators 44 whose rods 46 are connected thereto and whose cylinders 45 are connected to the cowling and have flanges 47 sliding in channels 50 in the beams 37. Alternatively, Figs. 6-10 (not shown), the flow passage may be a duct (109) between the wall of a nozzle (111) and a centrebody (110). In this embodiment the deflector apparatus is formed as a single annular assembly (121) and the downstream portion is moved by means of screw jacks (131). The system may be an air jet propulsion engine for an aircraft or surface vehicle, or may use liquid as the propulsive medium in the case of surface or under-water vehicles.
Patent GB-451838-A (GB)
Title: Improvements in or relating to the production of metal elbows
IPC: B21D9/12
Filed: 1936-03-20
Abstract: 451,838. Making pipe elbows. CORNELL, E. S., 17, Campbell Lane, Larchmont, New York, U.S.A. March 20, 1936, No. 8424. Addition to 412,075. [Classes 83 (ii) and 83 (iv)] Angular bending.-In bending wrought copper elbows, a tube 20 with normal edges is pushed by a stepped punch 8 into a split die 6 with an angular part forming an offset abutment. Sockets may be formed on the elbows by enclosing the elbow within a split die and expanding the ends in succession by a punch. The punch 8 carries a pivoted ball 33 for preventing collapse of the inner wall. After formation the elbow is secured in a clamp and the ends are squared by a saw. The bore of the elbow is trued by passing therethrough balls of increasing diameter.
Patent GB-1500533-A (GB)
Title: Solar energy collector
IPC: F24S23/70
Filed: 1975-02-28
Abstract: 1500533 Solar energy conversion device DOW CORNING CORP 28 Feb 1975 [1 March 1974] 8429/75 Heading H1K [Also in Divisions F4 and B5] A solar energy collector comprises a layer 16 of foamed plastics having parallel longitudinal recesses lined with reflective foil 14 and solar energy receiving means 24 within the recesses. In one embodiment, as shown, the receiving means comprises solar cells mounted in the recesses and cooled by fluid circulation conduits 26. The heat extracted by the conduits 26 may be utilized directly. The collector is made over male moulds placed on a flat base corresponding to the recess shapes (Fig. 1, not shown). The foil layer 14 may be either of metal or metallized plastics and has a protective coating of clear silicone resin. A foam plastics mix is poured over the foil to fill a frame 12. The mix is allowed to foam and cure before being taken from the mould and turned over. In other arrangements (see Division F4) the solar cells 24 are replaced by a pipe in a fluid heat exchange system or water is allowed to flow directly through the recesses which are provided with a blank foil lining.
Patent GB-1327442-A (GB)
Title: Hollow article made from a memory metal
IPC: F16L13/00
Filed: 1970-08-20
Abstract: 1327442 Making hollow bodies from heatrecoverable alloys RAYCHEM CORP 20 Aug 1970 [25 Aug 1969] 8533/73 Divided out of 1327441 Heading B3A [Also in Divisions C7 and F2] The subject matter of this Specification is identical with that described in Specification 1,327,441 but the claims are concerned with hollow articles made of "memory metals" having secondary deformation therein, methods of making such articles and methods of connecting pipes using coupling members of such metals.
Patent GB-1209497-A (GB)
Title: Built-up roofing
IPC: E04D13/16
Filed: 1968-02-22
Abstract: 1,209,497. Built-up roofing. PITTSBURGH CORNING CORP. 22 Feb., 1968 [27 Nov., 1967], No. 8631/68. Divided out of 1,209,496. Heading E1W. In a built-up roof, the upper surface of the waterproof layer 18 has adhered thereto insulating material 24 in the form of discrete, porous, water impervious elements 20 bonded to each other with interstitial voids therebetween through which liquid may flow. The elements 20 may be multicellular (closed cell) ceramic or glass nodules each encapsuilated in liquified bitumen material 22 which bond the elements to each other, the proportion of bitumen material being such that the interstitial voids 26 remain between the bonded elements. The specification discloses specific compositions suitable for the insulating material 24.
Patent GB-557887-A (GB)
Title: Improvements in and relating to the treatment of fibres and fabrics
IPC: D06P1/28
Filed: 1942-06-25
Abstract: 557,887. Dyeing textiles. ENGLISH VELVET & CORD DYERS' ASSOCIATION, Ltd., and HOLDEN, G. E. June 25, 1942, No. 8700. [Class 15 (ii)] Vat dyes, dyeing with. The affinity of fibres or fabrics for salts of esters of leuco vat dyes is improved by applying gelatine, isinglass or glue to the material, all-over or locally, and thereafter drying and heating. Pattern, including two-tone, effects, are obtainable by applying the gelatine or like protein to selected areas or by the use of an oxidising agent, such as Chloramine T, to remove or destroy the gelatine or like protein in selected areas. Specification 313,980, [Class 15 (ii)], is referred to.
Patent GB-1384763-A (GB)
Title: Arrangement for scanning signals along at least one track
IPC: G11B7/005
Filed: 1972-02-25
Abstract: 1384763 Switching playback heads LICENTIA PATENT-VERWALTUNGS GmbH 25 Feb 1972 [25 Feb 1971] 8799/72 Heading G5R In a playback arrangement, e.g. for digital data, possible lateral misalignment of the head and the track is accommodated by providing a plurality of switched heads S1-6 across each track, so that the track may always be read by at least one head Sn, the neighbouring heads Sn - 1 and Sn + 1 being automatically switched into operation in readiness while Sn is reading. Signals read by a head, say S5, are applied to an input a15 of an AND-gate A5 which must thus be opened by simultaneous application of a signal to its other input a25. This is initially done, e.g. by a detector E5 which detects an identification code preceding each track. The output from A5 triggers a monostable flip-flop M5 which is maintained in its unstable state as long as signals continue to be applied thereto with sufficient rapidity. The output Q5 from M5 passes through an OR-gate C5 to input b25 of a further AND-gate B5 which thus opens B5 to the signals being read, which are applied  directly to its other input b15 and then pass through an OR-gate D. The AND-gate A5 is held open as long as monostable M5 is operative by means of a feedback path R5 to input a25. Monostable output Q5 is also connected, through neighbouring OR-gates C4 and C6, to the neighbouring AND-gates B4, B6 and (via R4 and R6) A4 and A6, so that the neighbouring AND-gates may be kept open. The arrangement may be used with each of a plurality of spaced tracks, and is applicable to optical transducing using, e.g. photodiodes.
Patent GB-127705-A (GB)
Title: Improvements in Apparatus for Effecting Intimate Contact between Liquids and Gases.
IPC: B01F3/04
Filed: 1918-05-31
Abstract: 127,705. Kirkham, Hulett, & Chandler, and Hersey, S. May 31, 1918. Rotary apparatus. - In apparatus for effecting intimate contact between liquids and gases of the kind described in Specifications 18129/08 and 7958/13, the rotating trays c are provided with tubes f, which pick up liquid from the chamber a and spray it above the level of the tray, the portions of the tubes above the tray being preferably flattened, splayed, and perforated. The tubes may be made of various forms and may be perforated so as to spray the liquid within or below or both within and below the tray.
Patent GB-917742-A (GB)
Title: Improvements in or relating to arc welding
IPC: B23K9/12
Filed: 1961-03-13
Abstract: 917,742. Welding by fusion. UNION CARBIDE CORPORATION. March 13, 1961 [March 31, 1960], No. 9009/61. Class 83 (4). In consumable electrode arc welding with a continuously fed wire electrode, a lock-out circuit is operative in the absence of an arc to stop the electrode feed mechanism until it is restarted manually. The lock-out circuit also disconnects the welding supply and actuates an alarm. The control circuit is brought into readiness for welding by closure of switches 31 and operation of a button 33 which causes relay 19 to lock up. Welding is started by a switch 27 which energizes relay 9 which completes a circuit for a delayed action relay 13, and actuates relays 45, 37, 47, 48, the last three of which start the feed motor M and connect up the welding supply and the shielding gas. When the arc strikes relay 1 actuates relay 5 to break the energizing circuit of relay 13. The electrode feed rate is determined by a potentiometer 42 and indicated by a meter 43. Should the arc extinguish, relay 1 falls back followed by relay 5 and, after a delay, relay 13 disconnects lock-out relay 19. Relay 9 is de-energized and relay 37 stops the feed motor. Relay 13 falls back and connects up an alarm 25. An adjustable slow to release relay 45 introduces a delay after which relays 47 and 48 disconnect the welding current and gas. The control circuit is now locked-out until push-button 33 is reoperated. In normal operation, the end of welding is brought about by actuation of switch 27. The control circuit is particularly useful where welding is being carried out simultaneously by a number of machines under the control of a single operator. The electrode can be fed by an inching button 52 even when the circuit is locked-out.
Patent GB-330966-A (GB)
Title: Improvements in or connected with illuminated signs
IPC: G09F13/04
Filed: 1929-03-20
Abstract: 330,966. Strand & Interchangeable Signs, Ltd., and Andrews, F. A. March 20, 1929. Signs; name and number plates. - A sign comprises two slightly curved glass or like panels b bearing advertising matter, and illuminated from one end by a source of light a. The panels are lightly sprayed on their inner surfaces with white or other translucent colour, so that one acts as a reflector for the other; if desired, one panel may act wholly as a reflector, the other alone carrying the legend. The panels are practically touching at one end, and spaced by about a quarter of their length at the other. A sign may be formed by two such pairs of panels, disposed on opposite sides of the illuminant; when a single pair only is used, a reflector c may be provided. The advertising matter may be painted or printed on the panels b, or may be applied as a separate transparency.
Patent GB-1380372-A (GB)
Title: Phthalazin-1 2h- -one derivatives
IPC: A61K31/495
Filed: 1973-02-23
Abstract: 1380372 Phthalazinones GRUPPO LEPETIT SpA 23 Feb 1973 [17 April 1972] 9032/73 Heading C2C The invention comprises a process for making compounds (I) and novel compounds (II) by hydrogenating phthalazin-1(2H)-one. Pharmaceutical preparations showing bronchodilatory action contain (I) and/or (II) as active ingredient. Administration is orally or parenterally.
Patent GB-1530573-A (GB)
Title: Readout unit for data stored in a random-access memory and presented on a raster scan display in accordance with a given line pattern
IPC: G09G5/00
Filed: 1977-03-03
Abstract: 1530573 Radar scan conversion HOLLANDSE SIGNAALAPPARATAN BV 3 March 1977 [26 March 1976] 09090/77 Heading H4D The radial to raster scan-converter described in Specification 1,529,281, is provided with a modified read-out unit enabling the display a fraction #<SP>2</SP> (# = 1, ¢,) of the data in the R.A.M.l, starting from any picture element x o , y o  and at a magnification of Î <SP>I</SP>/ #2  whereby the whole of the display screen is filled. A fraction # of the picture elements in the picture line memory 11 are addressed by generator 12, for a fraction # of the lines, in a time 1/# times that required for the display of all the R.A.M. data, starting from picture element [q. integer (<SP>x0</SP>/ q ),y o ]. The data is read out in groups of q bits and duplicated in batches in a multiplier 26, to produce the total number of bits to fill a display line. To duplicate the elements in the line direction, a memory address generator 4 reads a fraction # of the lines <SP>1</SP>/ #  times that of the R.A.M. 1 starting from line y o .
Patent GB-452988-A (GB)
Title: Improvements in indicating instruments such as speedometers and the like
IPC: G01P1/11
Filed: 1935-03-23
Abstract: 452,988. Speedometers and other indicating-apparatus. WHIDBOURNE, H., Firwood, West Reading Road, Farnborough, Hampshire. March 23, 1935, No. 9091. [Classes 106 (iii) and 106 (iv)] In indicating-instruments, such as speedometers, means are provided to give an intermittent alarm signal over a predetermined part of the range of the instrument. In a speedometer of the magnetic type wherein eddy currents are set up by a rotating magnet in a flanged disc 14 which actuates the indicating needle, an insulating strip 30 having a gap 31 is secured to the flange of the disc 14 and is arranged to pass between and hold apart for a certain arc of movement two contacts 20, 21 carried by arms 16, 17 which are maintained in engagement with a cam 22 by springs 26, 27. The cam 22 is continuously driven from the speedometer drive and continuously makes and breaks the alarm circuit which is completed when the gap 31 permits the contacts 20, 21 to meet. A modification is described in which the strip 30 engages projections on the arms 16, 17, the contacts being provided at the ends of these arms. In another modification, Fig. 7, a single contact 47 bears on the flange 51 of the member 14, the flange being coated with insulating varnish except at one part corresponding to the warning range of the instrument, a cam 48 ensuring the intermittent action of the alarm.
Patent GB-384519-A (GB)
Title: Improvements in or relating to valves
IPC: F23L15/02
Filed: 1932-03-30
Abstract: 384,519. Stop valves. NAAMLOOZE VENNOOTSCHAP NIEUWE OCTROOI MAATSCHAPPIJ, 30, Carel van Bylandtlaan, The Hague.-(Assignees of Beardsley, E. W. and Colony, M. W. ; Los Angeles, U.S.A.) March 30, 1932, No. 9194. Convention date, April 23, 1931. [Class 135.] Closure members, rotary-disc ; wedging.-A valve for use in regenerative gas-heating plant for oil cracking processes comprises a counterweighted rotary hinged apertured sliding disc or spectacle valve member 29<1>, Fig. 3, with a refractory lining 30<11>, and a similar but separately-hinged blind valve member 29, Fig. 2, with counterweight 30, these members being each water cooled by baffled water-ways and adapted to enter and seat, as shown, in a gap in the gas conduit 12, Figs. 2 and 3. To make a gastight closure the faces are provided with interfitting tongues and grooves 51, 36, Fig. 3, the valve members being loosely pivoted on shafts 53, 53<1>, Fig. 2, so as to have a sliding movement thereon against springs 58, 58<1>. A sliding seating or ring 40 is movable along the pipe and is packed at 47 and forced against the valve members by means of a plurality of hydraulic cylinders 42, the pistons 44 of which are connected to the ring 40 by rods 45, these cylinders being connected to a common threeway control valve. Independent operation of the seat ring 40 is obtained by means of nuts and lock-nuts 62, 63, Fig. 3, on rods 60.
Patent GB-733020-A (GB)
Title: Improvements relating to line finder systems
Inventor: WARMAN BLOOMFIELD JAMES
IPC: H04Q3/00
Filed: 1953-04-02
Abstract: 733,020. Automatic exchange systems. SIEMENS BROS. & CO., Ltd. April 2, 1954 [April 2, 1953], No. 9221/53. Class 40 (4). In a line finder system each line circuit comprises a single one-step relay, performing the functions of the normal line and cutoff relays, which, on initial operation over the loop of a calling line, transmits a momentary starting signal to initiate search by a line finder for the calling line; locks up in a circuit common to a plurality of line circuits ; and, after the line has been found by a line finder, is held from the line finder, the said locking circuit being then opened. As shown, the single relay LK has two windings which are differentially wound, the ampere turns of winding II being greater than those of winding I. When a line is looped, the corresponding relay LK pulls up over winding I and its "X" contact extends ground over the loop to the start lead St of an allotter and to the common high-speed relay L. L operates, locks up, and holds LK(I), the remaining contacts of which disconnect LK(I) from the calling line, and connect the contact of the calling line in bank M of the line finder to that in bank P. When the calling line is found the test relay T operates over banks P and M, busies the line, and brings up an auxiliary relay (not shown), which in turn operates the line finder switching relay H (not shown). LK(II) is energized in the test circuit so that LK releases momentarily and then re-operates with reversed flux to the ground on wiper P of the line finder. The operation of the auxiliary relay also transmits a pulse to release-pulse relay R which operates and disconnects L. The removal of ground from the locking circuit releases the relays LK of other calling lines in the group to which relay L is common, which then re-operate over their respective loops; L is thus re-operated and another start signal is sent. On the reply of the called party, a positive pulse reverted over the M wire operates meter SM. When the caller hangs up, relay H (not shown) is released and LK falls away. On an incoming call, the final selector tests in over wiper P and LK operates over winding II. Modification. If LK is not differential, the extra circuits shown in dashed lines are provided and the momentary closure of contact x short-circuits LK(I) to ensure that LK releases when the caller clears. A further embodiment is described with reference to Figs. 3, 4 (not shown) in which the ground connection to the + wire includes a break contact of relay R, which is a a two-winding relay each winding of which is grounded, one winding being connected over break contacts of the relays LK to the contacts of the M bank of the line finders, and the other being connected to ground over a back contact of L and to battery over its own front locking contact.
Patent GB-748029-A (GB)
Title: Improvements in or relating to photometers
Inventor: LAURENCE ROGER FREDERIC
IPC: G01J1/12
Filed: 1953-04-02
Abstract: 748,029. Photometers. WINSTQN ELECTRONICS, Ltd. April 2, 1954 [April 2, 1953], No. 9246/53. Class 97 (1). In a photometer the subject to be measured is observed through a pinhole and a glass plate inclined to the line of sight to reflect into the eye an image of an electric lamp filament the current through which can be varied to provide a comparison field. As shown the lamp LP1 containing the filament, the inclined glass plate 1 and pinhole 2 are in a container which encloses a battery B1 and push button switch PB1 for operating the lamp, a suitably calibrated rheostat VR1 for varying the intensity of the lamp and a pre-setting resistance RV2. According to the Provisional Specification a graded wedge can be located between the lamp LP1 and the glass plate 1 to provide a variation in the intensity of the filament image.
Patent GB-165773-A (GB)
Title: Improvements relating to carriages for aircraft
IPC: B64C25/00
Filed: 1921-03-29
Abstract: 165,773. Zeppelin-Werke Ges., and Rohrbach, A. July 2, 1920, [Convention date]. Land wheels; shock-absorbers, applications of; floats, disposition of.-Two swivel stays b, b<1> carry each land-wheel c or float, and are maintained in a substantially horizontal position by a third elastic stay d, which is substantially vertical and is pivotally attached to the wing spar at a point along the wing. The Specification as open to inspection under Sect. 91 (3) (a) states that one of the stays b, b<1> may serve as an axle for each wheel and that the point of attachment of the stay d to the wing is so chosen that the wing spar is stressed to the least possible amount on landing. This subjectmatter does not appear in the Specification as accepted.