baber/WOPTO huggingface dataset:
Patent GB-522975-A (GB)
Title: Improvements in or relating to radio receivers employing automatic frequency control
IPC: H03J7/04
Filed: 1938-12-22
Abstract: 522,975. Wireless receivers. BARRACLOUGH, G. D. Dec. 22, 1938, No. 37239. [Class 40 (v)] In a radio receiver having an automatic frequency control circuit, access to one or more component parts of the chassis requiring adjustment e.g. the push button tuning circuit is obtained through a movable member e.g. an escutcheon plate, which normally prevents access to such parts and which, when thus moved, renders the A.F.C. circuit inoperative. Access to the adjustable elements associated with push buttons 1a, 1b. etc., is obtained through an aperture 3 normally closed by a removable escutcheon plate 4. The latter is held in position on the cabinet by screws 5, which thread in holes 7, 8 in metal brackets 9, 10. When the plate is in position the screw 5 bears against a leaf spring 12 making contact with the chassis so as to maintain the spring out of contact with a terminal 13 connected to the A.F.C. circuit. On removal of the screw 5 the spring 12 makes contact with the terminal 13 and the A.F.C. system is earthed. In a modification the plate is hinged to the cabinet and the A.F.C. system is put out of action by rotating the plate on its hinge.
Patent GB-1091878-A (GB)
Title: Broke and fuzz remover for doctor blades
Inventor: BEDARD ROGER EDGARD
IPC: B41F35/00
Filed: 1965-09-01
Abstract: 1,091,878. Inking-apparatus. LODDING ENGINEERING CORPORATION. Sept. 1, 1965, No. 37325/65. Heading B6C. [Also in Division D2] A doctor blade 18 for treating the surface of a roller 10 is cleaned of brolne and fuzz by a series of paddles 26 carried on an endless chain which is driven by a motor so that the paddles move lengthwise along the blade, and by air under pressure directed from nozzles 60 inclined in the direction of movement of the paddles.
Patent GB-1281212-A (GB)
Title: Apparatus for obtaining coloured orthophotoplans
IPC: G01C11/00
Filed: 1969-07-25
Abstract: 1281212 Photo-grammetric apparatus SOC FRANCAISE D'OPTIQUE ET DE MECANIQUE and B L Y DUBUISSON 25 July 1969 [1 Aug 1968] 37408/69 Heading G1F [Also in Division G2] In the production of coloured orthophoto-plans, two white light projectors 3, 4 each have associated therewith one of a stereoscopic pair of colour transparencies 5, 5a, convergent beams F 1 , F 2  projecting images of corresponding portions of the transparencies on to a table 6 situated at an adjustable distance D from the projectors and carrying photographic material 11. The table 6 also carries a movable reference mark 7 spaced at a short constant distance from the table and positionable in the zone of convergence of the beams F 1 , F 2  for each portion of the subject of the transparencies projected. In order to observe this mark and the projected images stereoscopically discs 13, 14 periodically and alternately intercept the projector beams in synchronism with alternate masking, by rotating discs 15, 16, of the fields of view of the eyes of an observer looking at the table, the discs being driven at such speeds as to obviate flicker. The unmasked projector beam falls on the white face 24 of a thin reciprocable sheet 23, which this acts as a viewing screen. The sheet 23 overlies a movable screen 20 carrying the reference mark 7, and the reciprocating motion of the sheet 23 periodically uncovers a slot 21 in the screen 20 by means of which a portion of the material 11 is exposed. The motion of the sheet 23 is produced by an electromagnet 25 the operation of which is synchronized with that of the discs 13, 14, each of which are half opaque. Alternatively, the material 11 may be periodically uncovered by means of a closed loop roller blind shutter (26), Fig. 3 (not shown) having two apertures each of one quarter the length of the shutter, which is also white so as to act as a viewing screen while obturating the slot 21. The reference mark (29) is carried by a transparent plate (30) suspended over the shutter. The above two embodiments are of a binary cycle, but a ternary cycle, in which the exposure is made when the views of both eyes are masked, is also envisaged, in which case the discs 13-16 are replaced by ones having different ratios of opaque to transparent areas. The shutter (26) may be modified by having two apertures each of one sixth of its length, or it may be replaced by a rotary disc (32), Fig. 4 (not shown) having an opaque sector of 240 degrees and carrying a circular reference mark (34).
Patent GB-869605-A (GB)
Title: Improvements in the treatment of cellulose triacetate fibres
Inventor: MANN RALPH JAMES
IPC: D06M13/228
Filed: 1956-12-07
Abstract: Cellulose triacetate fibres, with the exception of fibres made by the acetylation of cellulose acetate fibres of acetyl value below 59%, calculated as acetic acid, are treated with an agent in liquid form selected from (1) isopropyl alcohol; (2) esters of monohydric aliphatic alcohols of the type ROH, where R is an aliphatic hydrocarbon radical, preferably containing up to 3 carbon atoms, with C1-C4 fatty acids, e.g. methyl acetate, ethyl acetate, normal- or isopropyl acetate, allyl acetate and vinyl acetate; (3) acetic and propionic acids; (4) caprolactam, gamma-butyrolactone, urea and amides of C1-C4 fatty acids, e.g. acetamide and methylacetamide; (5) mixtures of acetone, water and a water-soluble thiocyanate, e.g. sodium, potassium, ammonium, zinc or calcium thiocyanate, with or without a C1-C4 fatty alcohol and (6) solutions of benzoic, salicylic and other benzene carboxylic acids in C1-C3 fatty alcohols, the treatment being applied for such a time, at such a temperature below 100 DEG C. and at such a concentration (with respect to a diluent) that the sticking point or safe ironing temperature of the fibres is raised by at least 10 DEG C.  The fibres may be prepared by the melt-spinning, dry-spinning or wet-spinning of cellulose acetate of acetyl value above 59%, calculated as acetic acid, and may be in the form of continuous filaments, staple fibres in the form of tops, slivers and other structures in which they are loosely bound together, or fabrics or articles made therefrom.  The fibrous material may be treated with the liquid by immersion or padding and, after immersion, it is preferably rolled up and allowed to stand for the requisite time, the amount of liquid medium available to the material during treatment preferably being at least 150% by weight, based on the dry weight of the material. The material treated may be free to shrink or shrinkage may be partly or wholly restrained.  The treatment is particularly suitable for raising the safe ironing temperature of fibres having a safe ironing temperature below 180 DEG C.  The Provisional Specification also refers to the use as treating agent of lactams and lactones, other than caprolactam and gamma-butyrolactone, which contain a lactam or lactone ring of up to 6 atoms. Specifications 500,960 and 776,346 are referred to.
Patent GB-302921-A (GB)
Title: Improvements in and relating to conductor clamps
IPC: H02G7/05
Filed: 1928-12-19
Abstract: 302,921. Hawley, K. A. Dec. 23, 1927, [Convention date]. Clips and holders for cables and conductors.- A clamp for suspending the conductors of transmission lines is constructed to be free to pivot about an axis transverse to, and intersecting, the longitudinal axis of the portion of the conductor extending beyond the clamp, so that the movement of the conductor in the vertical plane may take place without changing the position of the centre of mass. The device comprises upper and lower clamps 23, 24 grooved to receive a conductor 25. The ends of the clamps are flared away from the conductor into bell-mouths and U-bolts 27 pass through lugs 26 on the clamp 24 and carry nuts 31 to tighten the clamps 23, 24 together. The member 23 mav be centrally ribbed. The clamp 24 is formed with an apertured lug through which passes a pivot pin 32 attaching the clamp to a suspension link 16. The axis of the pin 32 passes through the longitudinal axis of those portions of the conductor 25 which extend beyond the clamp, and the members 23, 24 are curved outwardly round the pin 32, the conductor thus following a serpentine path clear of the pivot. In the modified construction shown in Fig. 3, the clamp is used to secure a ground conductor upon the upper part of a pole 34. The pivot pin 32 is carried by a curved plate 35 secured to the pole 34, nuts on the pin maintaining the clamp in position for pivotal movement without coming in contact with the pole.
Patent GB-977136-A (GB)
Title: Improvements in disc brakes
Inventor: WILSON ALEXANDER JOHN
IPC: F16D55/2255
Filed: 1962-10-04
Abstract: 977,136. Disc brakes. GIRLING LTD. Oct 4, 1963 [Oct. 4, 1962; Dec. 8, 1962], Nos. 37682/62 and 46416/62. Heading F2E. In a disc brake having friction pads adapted to be brought into engagement with opposite faces of a disc at least one friction pad is carried by a member mounted for angular movement about an axis which is inclined at an acute angle to the plane of the disc and to the direction of travel of the portion of the disc to be engaged, whereby the drag force acting on the pad is caused to apply a self-servo action to increase the force with which the pad is applied to the disc. In one embodiment, Figs. 2 and 3, a caliper 13 which straddles the disc 11 and includes an hydraulic cylinder 21 is mounted to swing about a pivot 16 which is inclined to the surface of the disc at an acute angle to the direction of movement of the adjacent disc portion. An arm 18 is similarly mounted on an oppositely inclined pivot 19. Pads 10, 17 are carried by the caliper and arm respectively for engagement with opposite faces of the disc. When fluid is supplied under pressure to cylinder 21, piston 22 applies pad 17 via the arm 18 and the reaction acts through the caliper 13 to apply the other pad 10. The drag forces acting on the pads swing the arm 18 and caliper 13 about their respective pivots to increase the forces applying the pads and thereby impart a self-servo action to the brake. In a second embodiment, Fig. 4, the oppositely inclined axes are provided by a cruciform member 24 to which U-shaped portions of the arm 18 and caliper 14 are pivoted. In a further embodiment. Fig. 7, the caliper has an integral arm 44 and the arm has an integral extension 45, these extensions being connected together by a universal joint 46 arranged in the plane of the disc 31 which has a recessed central portion 33, while universal joints 38, 43 connect the respective extensions with a fixed support plate 39 arranged in a plane parallel to that of the disc. The inclined arcs are then provided by lines joining the centres of universal joints 38, 46 and 43, 46, respectively.
Patent GB-1152467-A (GB)
Title: Improvements in or relating to Tubular Scaffolding Particularly For Floor Shuttering
Inventor: GOSTLING PETER ERIC
IPC: E04G7/30
Filed: 1965-09-03
Abstract: 1,152,467. Tubular scaffolding. KWIKFORM Ltd. 23 Aug., 1966 [3 Sept., 1965], No. 37717/65. Heading E1S. Bracing tubes for scaffolding particularly for supporting floor shuttering, have flattened ends 14 carrying a bolt 15 which clamps a lug 12 on a scaffolding tube 10 between a plate 20 and the end 14 to which a pin 17 is fixed which passes through holes in the lug 12 and the plate 20. Alternatively the pin may be fixed to the lug 12 and passed through holes in the end 14 and the plate 20.
Patent GB-894864-A (GB)
Title: Improvements in or relating to methods of treating paper pulp
IPC: D21H17/07
Filed: 1959-11-06
Abstract: 894,864. Paper containing wetting-agents. SVENSKA CELLULOSA A.B. Nov. 6, 1959 [Nov. 8, 1958], No. 37727/59. Class 96. In the production of paper, from pulp with a low content of pitch or wax, e.g. pulp of refined sulphate screenings, or kraft pulp, a wetting- agent, e.g. 0.05 to 0.2% of a cationic wetting- agent such as an alkyl trimethyl ammonium chloride or other quaternary ammonium salt, is added to the pulp, preferably after completion of grinding, or to the moist web on the papermaking machine, to improve the fibre-orientation, and to increase the dimensional stability of the finished paper.
Patent GB-1071715-A (GB)
Title: Trolley
Inventor: SCOTT THOMOS EDWARD
IPC: B62B3/04
Filed: 1964-09-16
Abstract: 1,071,715. Hand trucks. DISTILLERS CO. Ltd. July 30, 1965 [Sept. 16, 1964], No. 37764/64. Heading B7B. A trolley for gas cylinders has a base-plate 12 preferably with a cut-out in its leading edge, cylinder supporting loops 9 and a framework mounted on two wheels 1 and at least one rear wheel 4.
Patent GB-1022503-A (GB)
Title: Machine for levelling the ground and clearing debris from the tracks of underground mine railways
IPC: E21D9/00
Filed: 1963-09-26
Abstract: 1,022,503. Levelling railway tracks. MASCHINENFABRIK RUDOLF HAUSHERR & SOHNE G.m.b.H. Sept. 26, 1963 [Jan. 21, 1963], No. 37930/63. Headings E1F and E1G. Pneumatic or electric hammers 15 with projecting tools 16 on the base of a box-like shovel 5, vertically and horizontally pivotably mounted on vehicle chassis 1 (Fig. 1) are used to break up rock 17 to level ground for re-laying a railway track in a coal mine. The shovel lifting means is previously used to lift and deposit the track on one side, after the track has been distorted by rock swelling, and column 3 is pivotable so that the shovel can swing to drop debris in a truck on an adjacent track or on to a belt (Fig. 2, not shown). Fig. 3 (not shown) illustrates the machine mounted on a truck (19) for transport or in use in scraping material (22) from between rails (20). Rollers 21 on the shovel engage rails (20), and the shovel width corresponds to the track gauge, Fig. 4 (not shown) illustrates the shovel tilted and its hammers attacking rock from above. Figs. 5 and 6 (not shown) illustrate a pusher in the shovel 5, actuated to expel material therefrom. Guides are provided for the pusher, and the piston of its driving cylinder may be double or single acting, or two cylinder piston devices may move the pusher, one in each direction. The machine is self-propelled on tracks 2, powered by separate hydraulic motors and cylinders 6, 7 &c. are hydraulic.
Patent GB-1436747-A (GB)
Title: Alarm control apparatus
IPC: G08B17/117
Filed: 1973-08-13
Abstract: 1436747 Gas detector alarm ELECTRICAL REMOTE CONTROL CO Ltd 13 Aug 1973 38218/73 Heading G1N A gas sensitive resistor 12 is connected in a bridge circuit which supplies output signals to two amplifiers 14, 15 in parallel, the first 14 responding to low gas concentrations to provide an output signal and the second 15 being sensitive to large signals from the bridge e.g. due to a fault in the bridge. A logic de-coder 23 receiving the amplifier outputs and providing a first inhibit signal to an alarm modulator 24 and a second inhibit signal to each of three alarm devices 25, 26, 27 in parallel. The logic de-coder generates the second inhibit signal when no output is provided by the first amplifier 14 and generates the first inhibit signal only when a signal is received from another component in the circuit indicating that that component has not operated satisfactorily. The modulator is connected to the three alarm devices to modulate the alarm signals they generate except when the first inhibit signal is applied to the alarm modulator. Thus when a circuit component has failed the modulator will be inhibited, but the three alarm devices will operate since there is no second inhibit signal and a uniform alarm signal is generated by each device. When a signal is generated by the first amplifier 14 neither the first nor the second inhibit signal is generated and the three alarm devices generate modulated alarm signals to indicate gas detection. (For Figure see next page)
Patent GB-975125-A (GB)
Title: Sheets of transparent thermoplastic compositions which diffuse light
IPC: F21V3/04
Filed: 1962-10-10
Abstract: 975,125. Composite transparent sheets. DOW CHEMICAL CO. Oct. 10, 1962 [Dec. 11, 1961], No. 38326/62. Heading E1J. A transparent sheet comprises alternate longitudinal strips 26 of extrudable transparent styrene polymer, e.g. polystyrene, with or without dyes, and strips 27 of diffuser material, which are also of styrene polymer or methyl methacrylate polymer having a refractive index difference of at least 0À01 from that of the transparent strips and advantageously at least 0À05 and may be transparent, opaque, translucent, reflective or light absorbing, or may transmit light of different colour from the strips 26, the strips 26, 27 having, in crosssection of the sheet, a regular pattern so that the strips define light paths through the sheets. The diffuser strips 27 may be in section, generally rhomboidal, rectangular, arcuate or circular (Fig. 5), and the strips 27 may extend through the thickness of the sheets. Specification 374,148 and U.S.A. Specification 2,808,617 are referred to.
Patent GB-1202768-A (GB)
Title: Protective circuit for a thermo-couple transducer
IPC: H02H5/04
Filed: 1968-08-12
Abstract: 1,202,768. Thermionic valves. WANDEL U. GOLTERMANN. 12 Aug., 1968 [31 Aug., 1967], No. 38416/68. Heading H1D. [Also in Divisions G1 and H2] In a protective system for the heater 34 of a thermocouple transducer 35, a heat-sensitive device is provided. This device may be a vacuum diode in the vacuum chamber 30 housing the transducer and having an anode 37 and a heated oxide cathode formed by the heater 34. The chamber 30 is a hard glass bulb with a glass base, plug pins 31 and a getter 39 being provided.
Patent GB-1118989-A (GB)
Title: Electronic switches
IPC: G01R13/28
Filed: 1966-08-26
Abstract: 1,118,989. Transistor gating circuits. SIEMENS A.G. 26 Aug., 1966 [26 Aug., 1965], No. 38506/66. Heading H3T. A gating circuit, Fig. 2, comprises a switching element, e.g. transistor T 1 , with an input signal U 1a  applied to one electrode (e.g. the base), and a control signal applied to another electrode (e.g. the emitter) via a switching diode D such that T 1  is either on or off depending on whether D is forward or reverse biased. Two such circuits T 1 , T 2  are symmetrically connected to a common emitter network and form one of a number of gates for sequentially feeding input signals (U 1 , U 2 , ... Un) to a single beam cathode-ray tube, Fig. 1 (not shown).
Patent GB-1026558-A (GB)
Title: Improvements in log periodic antennas
IPC: H01Q11/10
Filed: 1963-10-01
Abstract: 1,026,558. Aerials. GRANGER ASSOCIATES. Oct. 1, 1963 [Oct. 7, 1962], No. 38666/63. Heading H4A. A "log-periodic" aerial comprises two feeders extending from a ground point in a common vertical plane to a single tower, each feeder has linear and conductive radiating elements extending from it at intervals alternately to one side and the other side of the vertical plane, the lengths and spacings of the elements increase logarithmically from an apex at the ground point in accordance with where L N  and L N+1  are the lengths of the Nth element and the element next nearest the apex, X N  and X N+1  are the distances from the apex of the Nth element and the element next nearest the apex, and # is a constant less than unity, and the elements extend from the feeders in such directions that the angle #N, between a plane including the Nth element and its feeder, and the above common vertical plane, is other than 90 degrees. In one embodiment, Figs. 4, 4B, 4C the aerial elements 14, 15 are anchored to the ground by guy wires 21 and the feeders 11, 12 are supported from a mast 18 by a catenary 19. In an example, the operating frequency range is 4 to 30 Mc/s., the mast is transportable and 70 ft. high and # N  is 125 degrees. The angle #, Fig. 4A is 90 degrees. Polarization of the radiation is horizontal, the longest element is #/2 long at the low-frequency end of the desired range and the shortest element is #/2 long at the high-frequency end thereof. The ensuing radiation patterns are discussed. The mast may be telescopic, or be composed of readily-connectable aluminium sections. Coiled guy wires are pre-assembled. The feeder and radiator assembly may be pre-assembled from flexible conductors and packed in a coil, the feeders containing a calibrated spring-tensioning device for rapid tensioning of the caternary. Ends of radiators, supported by insulating rope, may be fitted with snap hooks and means for rapid length and tension adjustments. Feeders 11, 12 may or may not be parallel. In another embodiment, Fig. 5, omnidirectional in azimuth, angle # is greater than 90 degrees, and a single central tower 22 supports four sets of pairs of feeders with dependent radiating elements.
Patent GB-1515762-A (GB)
Title: Hypodermic syringe projectiles
IPC: F42B12/54
Filed: 1976-09-17
Abstract: 1515762 Hypodermic syringe projectiles H V ILSLEY M S JACKSON and J R M HARDEMAN 17 Sept 1976 [20 Sept 1975] 38679/75 Heading F3A A hypodermic syringe projectile comprises a rubber sleeve 30 which is pushed back when the projectile strikes an animal to expose an outlet 26 and so enable a piston 18, motivated by compressed air in a chamber 52, to eject a drug from a chamber 20. Air is introduced into the chamber 52 through a one-way valve 50 formed with a flight 54.
Patent GB-362185-A (GB)
Title: An improved process and apparatus for tanning skins for making transmission belts or belting and other similar uses
IPC: C14B9/00
Filed: 1930-12-23
Abstract: 362,185. Tanning-apparatus. CHAVAND, R., 51, Rue d'Anvers, Lyons, France. Dec. 23, 1930, No. 38773. Convention date, Jan. 6. [Class 76.] In a process for tanning skins for making belts, belting, &c. the skins cut into strips of a width corresponding with the articles to be produced are subjected during the tanning process to a unidirectional tension which is progressively increased during the whole tanning process. The apparatus employed comprises pivotally supported bars 1, 2 to which the skin is secured by pins, the bar 2 being drawn away from the bar 1 by a screwed shaft 16 engaging a nut rotated through reduction gearing. Specification 345,382 is referred to.
Patent GB-369941-A (GB)
Title: Improvements in or relating to bearings
IPC: F16N7/12
Filed: 1930-12-24
Abstract: 369,941. Capillary-action lubricating. SIEMENS-SCHUCKERTWERKE AKT.- GES., Siemensstadt, Berlin. Dec. 24, 1930, No. 38919. Convention date, April 9. Addition to 351,831. [Class 12 (iii).] A bearing pedestal 3 mounted within a bracket 9 and containing a bush 4 in which is journalled a ring 5 fitted on a shaft 1, as in the parent Specification, is provided with an exterior concentric groove 14 in which is arranged a wick 7 which, at the top of the bearing, passes horizontally through a slot in the pedestal and bush so as to contact with the ring 5 through a rectangular opening 15 in the bush. The wick.is pressed against the ring by a flat spring 8 adjustable by a screw 18 which serves as a closure, for a lubricant supply opening 19.
Patent GB-1200365-A (GB)
Title: Improvements in or relating to turbines
Inventor: HAVLIK JAROMIR
IPC: F01K23/16
Filed: 1967-08-24
Abstract: 1,200,365. Fluid-pressure servomotor systems. PRVNI BRNENSKA STROJIRNA ZAVODY KLEMENTA GOTTWALDA. NARODNI PODNIK. Aug.24, 1967, No. 39034/67. Heading G3P. [Also in Division F1] A gas turbine 1 and steam turbine 3 are mounted on a common shaft to drive a generator 4 and a compressor 2. The latter normally supplies air through valve 7 to industrial process combustion apparatus 6 and the products of combustion pass turbine 1. During starting, valve 7 is closed and the air is passed to a combustion chamber 5 through valve 8, the latter having a bypass loop controlled by valve 9. Valve 18 controls the supply of steam to turbine 3, this turbine being particularly useful for starting the set 1, 2. Fuel to combustion chamber 5 is controlled by valve 21. The control system includes a leak-off governor 12 which provides a primary control pressure in line I for leak-off relays 13-15. Relay 13 and combustion products temperature regulator 23 control valve 9; relay 14 and starter valve 20 control valve 21, and relay 15 and steam pressure regulator 17 control valve 18.