baber/WOPTO huggingface dataset:
Patent GB-564503-A (GB)
Title: Improvements in or relating to the production of lantern slides
IPC: G03B21/64
Filed: 1943-07-08
Abstract: 564,503. Lantern slides. MORGAN, J. G. Y. D. July 8, 1943, No. 11074. [Class 98 (ii)] A lantern slide displaying a picture on a film having perforated margins includes a frame provided with soft, yielding frictional material, such as leather, rubber, cotton fabric or velvet, to hold the film firmly but adjustably in position by engaging the perforations. As shown, the slide comprises a cardboard frame 1 having a picture aperture 3 and strips 5 of frictional material (e.g. chamois leather) attached to it adjacent opposite sides of the aperture ; a glass coverplate of the same size as the frame 1; and a gummed apertured binding sheet 13. The slide is assembled by wetting the sheet 13, placing the frame 1 on the square 17 thereof, superimposing the cover-plate, turning over three of the flaps 16 of the sheet 13 so that they adhere to the front of the cover-plate, and tucking the fourth flap, provided with extensions 21, in between the frame and cover-plate, thus providing an entrance slot for the film, the extensions 21 overlapping the ends of the strips 5 so that these ends do not obstruct entry of the film into the slide. A gummed strip may be secured around the slot edge of the cover-plate before the slide is assembled ; and after inserting the film and adjusting it relative to the picture aperture, the entrance slot may be closed by gum or an adhesive strip.
Patent GB-128600-A (GB)
Title: Improvements relating to Electric Batteries.
Inventor: ANTONOFF GEORGE NIKOLAYEVICH
IPC: H01M4/10
Filed: 1917-08-02
Abstract: 128,600. Antonoff, G. N. Aug. 2, 1917. Electrodes.-In cells having a depolarizer of graphite and manganese dioxide compressed till its resistance is a minimum, as described in Specification 128,316, a small proportion, e.g. about 1 per cent, of a weak organic acid is added to the depolarizer mixture before moulding. Benzoic acid is preferably used; but other acids, such as tartaric, salicylic, or succinic acid or their homologues, may be employed. Specification 108,892 also is referred to.
Patent GB-1041307-A (GB)
Title: Nuclear reactors
Inventor: HOPKINS JOHN STIRTON
IPC: G21C13/00
Filed: 1964-03-17
Abstract: 1041307 Reactors NUCLEAR POWER PLANT CO Ltd and AEI JOHN THOMPSON NUCLEAR ENERGY CO Ltd [trading as NUCLEAR POWER GROUP] 23 March 1965 [17 March 1964] 11169/64 Headings B4Q and G58  A concrete structure forming part of a nuclear reactor installation is divided into separate compartments concerned with different reactor services. The central compartment contains a water-filled storage pond and surrounding spaces are for the maintenance of active fuel and control rods and standpipe units. The space immediately above the storage pond provides a working space for operators using remote manipulators. The storage pond is mounted on ribs so to provide an inspection space and a trap for leakage water.
Patent GB-235158-A (GB)
Title: Automatic regulating device for synchronous transmission
IPC: G08C19/20
Filed: 1925-04-29
Abstract: 235,158. Compagnie des Forges et AciÚries de la Marine et d'HomÚ- court. June 3, 1924, [Convention date]. Void [Published under Sect. 91 of the Act]. Order apparatus.-In a system wherein the movements of a transmitting member, which may be operated by hand, are repeated by a receiving pointer, synchronous movement is accomplished by a correction device at the receiver operated by impulses transmitted at determined positions of the transmitting member. The transmitter comprises an arm 6, Figs. 2 and 3, mounted on an operating shaft and adapted, according to its direction, to operate one or other of the discs 10, 11 by pawls 7, 8. Motion of the discs in the reverse directions is prevented by pawls 14, 13 respectively. The discs carry insulating discs 19, 20 having teeth which interlock with teeth on contact rings 17, 18. The contact rings are supplied by rubbing contacts 25. The teeth of the contact rings 17, 18 co-operate respectively with pairs of contact rollers 21, 22, 23, 24, each pair being arranged so that when one roller contacts with an insulating portion the other jets on a contact. The rollers are connected to pairs of electromagnets 42, Fig. 8, in the receiver. Each pair of magnets operates a toothed wheel 43 which, when electric impulses are received due to the operation of one of the discs 10, 11, rotates the receiver pointer in one or other direction. Thereceiver pointer 2, Figs. 4 and 7, is operated by a toothed wheel 37 which is in turn operated by a wheel 38 loosely mounted on the pointer shafts 41. The wheel 38 is operated by a disc 46 on the shaft 41 through the intermediary of a stud 54 which lies between levers 47, 48 connected to the disc 38 by spring 49, 50. A stud on the disc 38 also lies between the levers 47, 48. The discs 37, 38 are coupled by a wheel 39 carried by a bell-crank lever 58. Any movement of the wheel 38, produced bv one of the wheels 43, is thus communicated to the pointer 2. The wheel 37 gears with a spring-controlled wheel 36 which, when the wheel 37 is uncoupled by withdrawing the wheel 39, adjusts the pointer 2 and thus synchronizes the transmitter and receiver. The wheel 39 is uncoupled from the wheels 37, 38 by a magnet 40 at determined , positions of the transmitting memlier. The magnet is operated by contacts 26, Fig. 3, each comprising a spring- controlled and pivoted member carrying a roller 29. The transmitting member 6 has an arm 28 which during rotation moves the contact rollers 29 into engagement with a contact ring 33 to send impulses to the magnet 40. Two rings 33 supplied from rings 32 are provided, one for each direction of rotation. During the correcting operation, the wheel 38 is held stationary by a comb 37 on the lever 58, and the signalling impulses are stored up by one or other of the springs 49, 50 by the operation of the corresponding lever 48, 47. Upon completion of the correcting operation, the wheel 38 is released and the pointer 2 is correctly positioned by the tensioned spring.
Patent GB-807447-A (GB)
Title: Improvements in or relating to variable speed gear
IPC: F16H9/16
Filed: 1954-04-20
Abstract: 807,447. Variable-speed gearing. STEINER, C. E. April 19, 1955 [April 20, 1954], No. 11209/55. Divided out of 807,446. Class 80 (2). In variable-speed gearing in which expanding cone pulleys 13 ... 16 are drivingly connected by a belt 18 which passes over friction-rings 17 on the pulleys the movable flange 14 of at least one of the pulleys is axially adjusted to vary the gear ratio by a manual lever of the first order. As shown, the lever is pivoted at 20, Fig. 1, is manually engaged at 19 and has a collar 21 engaging a groove 22 in the boss of the flange 14. The movable flange 16 of the other pulley is under the action of a spring 24. In a modification, both flanges 14, 16, Fig. 2, are moved simultaneously by rotation of a hand wheel 30 on a rod 29 to which is screwed a nut 31. The nut 31 has projections 32 engaging slots 33 in levers 34, 35 pivoted at 36, 37. Each lever 34, 35 may be in two parts which may be relatively angularly adjustable about its fulcrum by positive or spring means.
Patent GB-1015906-A (GB)
Title: Improvements in milling and boring machines
Inventor: RENE DEFLANDRE
IPC: B23Q11/00
Filed: 1963-03-21
Abstract: 1,015,906. Machine tool details. DEREFA ESTABLISSMENT POUR LE DEVELOPPEMENT RECHERCHES ET FABRICATIONS INDUSTRIELLES. March 21, 1963 [April 5, 1962], No. 11271/63. Heading B3B. A milling and boring machine comprises a headstock 11 suspended and balanced from a point located on the vertical line passing through the centre of gravity. The balanceweights 16, Fig. 2, and the headstock 11 are connected by a cable 17 running over pulleys 18, 19 on an arm 20 pivoted at 21. Thus, as the headstock moves forwardly to a position 15<SP>1</SP>, Fig. 5, the weights move back to the position 26, the arm 20 being rotated by a rack fastened to the headstock and driving through gearing 31, 28, 27. The headstock supporting slide 10 is balanced by gravity or hydraulic means, not shown.
Patent GB-1505936-A (GB)
Title: Transport device for loads
IPC: B65G25/06
Filed: 1976-03-19
Abstract: 1505936 Conveying extra - heavy loads TOTAL TRANSPORTATION SYSTEMS (INTERNATIONAL) AS 19 March 1976 [26 March 1975] 11304/76 Heading B8A Very heavy loads 11, e.g. barges weighing over 1000 tons, are lifted off supporting members (not shown) while they are being conveyed. The conveyer is a wheeled trolley or trollies 8, drawn along by a traction chain 3. A drive sprocket 4 of the chain 3, is arranged to be deflectable in the direction of arrow A. This pressurizes fluid in a cylinder 5. The hydraulic pressure is transmitted via a conduit 6 to a jack cylinder or cylinders 7. In this way, the weight of the load 11 is lifted off its supporting surface. A detailed hydraulic system is described (Fig. 2, not shown).
Patent GB-630291-A (GB)
Title: Improvements in door, window and gate appliances
IPC: E05D15/00
Filed: 1947-04-29
Abstract: 630,291. Clamping devices. CRAWLEY, C. M., CRAWLEY, C. M. H., and CRAWLEY, C. R. April 29, 1947, No. 11369. [Class 44] [Also in Group X] A clamping device for preventing doors &c. rattling comprises a strip 1 of metal, wood &c. pivotally secured to the door frame by a wood screw 3, and a leaf spring 6 carrying a pad 5 of felt or cork adapted to be forced into engagement with the door by a screw 2. The device which normally hangs in a vertical position is moved by hand to the horizontal position where tightening of the screw forces the door against its fastening latch. The door may then be opened without releasing the screw. Specifications 399,362 and 519,967 are referred to.
Patent GB-1495741-A (GB)
Title: Multiple application of herbicide
IPC: A01N43/08
Filed: 1974-03-14
Abstract: 1495741 Multiple application of herbicide FISONS Ltd 14 March 1975 [14 March 1974] 11415/74 Heading A5E A method of selectively combating weeds in a crop such as sugar beet, comprises applying a weed-combating amount of 2-ethoxy-2, 3-dihydro-3, 3-dimethylbenzofuran-5-yl methanesulphonate before emergence of the crop to a locus at which the crop is growing or is to grow, and after emergence of the crop applying a further weed-combating amount of the methanesulphonate to the locus. Optional ingredients are pesticides, fertilizers and non-phytotoxic oils, in particular herbicides such as pyrazon, lenacil, phenmedipham, azolamid, propachlor, triallate, benzthiazuron, and cycloate.
Patent GB-633112-A (GB)
Title: Improvements in or relating to telecommunication exchange systems
IPC: H04M3/40
Filed: 1947-04-29
Abstract: 633,112. Automatic exchange systems. STANDARD TELEPHONES & CABLES, Ltd., and WRIGHT, E. P. G. April 29, 1947, No. 11454. [Class 40 (iv)] An echo-suppressor ES is automatically inserted in a connection between a four-wire international trunk and a two-wire national circuit when both the terminal national circuits NT1, NT2 belong to a special class. A special class national circuit extended over a finder switch OGF to a four-wire international trunk is marked by ground over wipe ogfm3 which operates a relay DF in a digit-sending controlswitch SS. The switch SS is marked by equipment (not shown) controlled by an international operator. A distinctive signal is interpolated between the first and second code digits transmitted and a relay DR is operated in a code register of the incoming end of the trunk. A relay IDF is also operated if the wanted number registered represents a special class circuit. Operation of both IDF and DR is followed by operation of ESR to bring an echosuppressor ES into the connection. Transmitting code signals, Fig. 1. Digits are transmitted in a four-pulse binary code using two frequencies f1, f2. The switch SS is marked and is started when CO, SR and ST operate. The first digit is transmitted as the wipers ssml, ssm2 pass over the first set of eight contacts of switch SS. If DF is not operated, the switch steps rapidly over the unmarked second set and proceeds to send the second digit marked on the third set. If, however, DF is operated, the first digit is followed by a distinctive signal f2, f2,  f1, f1. Subsequent digits are transmitted as before. Receiving code signals, Fig. 2. The pulses f1, f2 are detected by a receiver VFR and operate relays F1, F2. Relay F follows the first pulse of either frequency to start the switch RS and the code digits are recorded on sets of four relays A ... D. A pulse of frequency f1 is recorded as an operated relay and a pulse of frequency f2 as an unoperated relay. The distinctive signal f2, f2, f1, f operates DR, wipes out the record and operates relay CH. Subsequent digits are marked over wiper rsm2 instead of rsml and the slipping connections between the contact banks enable the second set to be used again to record the second digit. The Provisional Specification mentions the use of half echo-suppressors, one half being placed at each terminal exchange in a long-distance connection. The special class of a called line may be marked by an early digit in the called number.
Patent GB-591699-A (GB)
Title: Improvements in liquid coolers
IPC: F28D1/053
Filed: 1945-05-05
Abstract: 591,699. Cooling radiators for aircraft &c. WORCESTER WINDSHIELDS & CASEMENTS, Ltd., SOUTHALL, H., and DEAKIN, T. M. May 5, 1945, No. 11477. [Class 64 (iii)] In an oil or other liquid cooler of the kind described in Specification 580,678 one or more rows of by-pass tubes are enclosed in hollow casings each surrounding a line of tubes. The rows of vertical by-pass tubes 9, 10 are each encased by a single sheet metal casing or by casing sections 13 arranged to fit between pairs of horizontal tie plates through which the cooling and by-pass tubes pass. The casing for the by-pass tubes 10 in each of the outer rows is open at top and bottom and comprises a flat inner wall 14 and a corrugated outer wall 15. The casings 13 round the inner rows of by-pass tubes may each enclose the whole row of tubes within a common space or one wall 17 may be depressed at one or more places 18 to form two or more enclosed spaces. The casings have V- sectional forward edges 13a and rear edges of similar shape or square section.
Patent GB-114939-A (GB)
IPC: F01N13/12
Abstract: 114,939. Clench, E. C. S., and Aster Engineering Co. June 14, 1917. Casings.-An engine with all its details is enclosed in a water-tight casing with apertures A<4>, F at the top for admission of air and escape of the exhaust, thus enabling the engine to be submerged. If it is to be submerged when idle, the pipes A<4>, F may be closed and the casing charged with air under pressure. The air pipe A<4> leads to a chamber containing the carburettor E and communicating with the space A' and the crank chamber. The governor and the electric ignition gear are contained in separate chambers at one end of the crank chamber, and the shaft passes through a stuffing-box at the other.
Patent GB-400257-A (GB)
Title: An apparatus adapted to produce electric fields of high frequency having multiple wave lengths
IPC: H01Q5/00
Filed: 1932-04-22
Abstract: 400,257. Aerials; directive wireless signalling. LAKHOVSKY, G., 75 <bis>, Avenue Foch, Paris. April 22, 1932, No. 11574. Convention date, May 2, 1931. [Class 40 (v).] For producing radiation of multiple wavelength a series of circular open-circuit radiators a... f of different dimensions are simultaneously excited from a spark coil T and high frequency circuit C, L1, E. The two outer radiators a, b are connected to the ends of coil L1 or a coil L2 coupled thereto and the other radiators excited by induction, or by further leads to tappings on coils L1 or L2. The radiators may be arranged to form conical, ellipsoidal &c. surfaces to produce directional effects and the whole apparatus may be mounted so that it can be swung into any desired direction, Fig. 3 (not shown).
Patent GB-149407-A (GB)
Title: Improvements in differential and variable speed gear for motor road vehicles
IPC: B62M25/00
Filed: 1919-05-09
Abstract: 149,407. Berry, A. J., and Berry, G. M. M. May 9, 1919. Change - speed gearing; differential rotation of wheels, permitting by slip of driving connexions. - An expanding pulley which allows differential rotation of the road wheels is mounted on the rear axle, one flange e being fixed to one road wheel, while the other flange f slides on a square part of the shaft or axle i to which the other road wheel is fixed. Change of speed is effected by moving the flange f. When the pulley is opened right out the belt runs on the rim of a loose disk m.
Patent GB-982564-A (GB)
Title: Improvements in or relating to electrophotographic elements
IPC: G03G5/087
Filed: 1961-03-30
Abstract: 982,564. Electrophotographic materials. KODAK Ltd. March 30, 1961 [March 31, 1960], No. 11652/61. Heading H1K. A xerographic sheet comprises an insulating support containing zinc oxide and another inorganic compound whose effect is to reduce the saturation potential of the sheet. The invention is concerned with a process of the type in which the layer as a whole is charged to the saturation potential, the charge leaking away at those portions which are subsequently exposed to light. The toner is then applied and gives an image the intensity of which is related to the image potential. Fig. 3 shows the potential of three different photo-conductors plotted against log exposure. Ordinates 41, 43, 45 represent the respective saturation potentials of the layers and layer 55 represents the potential above which the density cannot be increased. Hence, in the case of the curve 40, where the saturation potential is higher than maximum toner potential 55 the portion of the curve between points 56 and 41 has no effect on the tonal range. Similarly in the middle curve the points between 57 and 43 have no effect. Ideally, the saturation potential produced should be the same as the potential maximum of the toner. The Specification describes four additives which lower the saturation potential so as to make it more nearly coincide with the toner maximum. These additives are added to type F zinc oxide. This is oxide made by the direct burning of zinc and has the ability to store an electric charge when stored in a binder of from 10 to 50% resin. The additive may be type A zinc oxide which is derived from a zinc ore by chemical treatment and will not hold an electrical charge, calcium oxide, lead carbonate and aluminium phosphate. The Specification gives examples in which 2 to 20% of the total zinc oxide is of type A or in which the total inorganic matter comprises 10 to 50% lead carbonate, 4 to 40% aluminium phosphate, or 1À5 to 15% calcium oxide. The Specification states that a percentage P of the additive has a saturation potential depressing effect given by where B is the saturation potential of the layer without the additive and E with it and it is stated that the percentage of a given additive should be such that E is between 0.75 and 1À33 times the maximum toner potential M. In the specific examples given in the text the sheet was prepared by mixing 56 grams of type F zinc oxide and an energizing additive with 37.3 grams of butadiene-styrene copolymer, 4.7 grams of the product of a low degree polymerization of the hydrolisation of mixed methyl and phenyl chlorosilanes, 100 grams of xylene and 2 grams of methyl alcohol.
Patent GB-271434-A (GB)
Title: Improvements in or relating to cores for electric transformers
IPC: H01F27/245
Filed: 1927-05-02
Abstract: 271,434. International General Electric Co., Inc., (Assignees of Allgemeine Elektricitõts-Ges.). May 18, 1926, [Convention date]. Addition to 269,894. Transformers. - Relates to transformer cores built up from a number of composite plates each comprising a number of thin laminations cemented together with insulating material as described in the parent Specification, and consists in placing layers of non-magnetic material f between the overlapping surfaces of the composite, plates a, b forming respectively the limbs and vokes of the core so as to confine the flux at the joints to the path indicated by the lines d.
Patent GB-166583-A (GB)
Title: Improvements in or relating to explosive shells
IPC: F42B10/30
Filed: 1919-05-09
Abstract: 166,583. Wassermann, M. May 9, 1919. Projectiles.-Relates to explosive shells to which rotation is imparted during flight by means of a turbine situated in rear of, and supplied with gases under pressure from, a propellent charge in the fore part of the shell, and consists in making the extremities of the shell of streamline formation, and in locating the turbine at or near the centre of gravity zone of the shell, between the forward propellent charge and a rear bursting charge, inclined exhaust passages being provided in the peripheral wall of the shell leading from the turbine to the atmosphere. The rear portion of the shell, which normally contains the bursting charge, may be used as a storage receptacle for objects such as illuminating material or asphyxiating gas which it is desired to send to a distance. In the form shown, the shell consists of a fore part 1 containing propellent charge and, screwed to it or to an intermediate ring, a rear part 3 containing bursting charge, both parts being of stream-line formation. The turbine 13 is secured in the forward end of the part 3 by screws or rivets engaging longitudinal grooves in the casing so that the turbine is prevented from rotating, but may be projected forwardly when the shell is exploded by the bursting charge, and increase the shattering effect. The turbine 13 has wings with sharp forward edges, helicoidal upper faces 15 and lower faces 15<1> providing helical ducts between them for the gases from the propellent charge, which escape through passages 22 in the wall of the shell casing, these passages being inclined to the axis of the shell so as to impart both forward and rotary movement to it. The plug 7 in rear of the shell is screw-threaded at 10 to receive a percussion fuze. In a modification, this fuze is seated in the rear face of the turbine. The turbine has a central cavity 16 screw-threaded at 17 to receive a primer for igniting the propellent charge, the ignition being effected by a slow-match or the like in a passage 19 leading from the exterior of the casing. A rotatable ring 34 on the casing has holes 22' registering with the escape openings in the passages 22, so that the size of these holes may be regulated. The wings of the turbine may be shaped so as to provide ducts converging rearwardly as shown, or diverging rearwardly. In the form shown in Fig. 12, the propellent charge is contained in a tube 28 surrounded by a chamber 31 which may contain either propellent charge ignited through passages 33 after the charge in the tube 28 and exhausting through passages 22<111>, or bursting charge ignited through passages 32 communicating with the rearward bursting-charge.
Patent GB-837631-A (GB)
Title: Improvements in or relating to party-lines in automatic telephone systems
Inventor: CLAYTON JOHN LESLIE
IPC: H04Q5/00
Filed: 1957-04-10
Abstract: 837,631. Party-line systems. AUTOMATIC TELEPHONE & ELECTRIC CO. Ltd. April 24, 1958 [April 10, 1957], No. 11731/57. Class 40 (4). A party-line substation includes a relay LD shunted by a rectifier MR1 so as to respond to alternating ringing current on a revertive call and replace the D.C. loop by an A.C. loop before the ring-trip relay is connected at the exchange. Bridged across the line is a mechanically-tuned galvanometer relay G in series with a coldcathode tube GDT which glows as long as the party-line is idle. In the case of a revertive call, the selectors are released after the partyline relay set has responded to the final code digit, and ringing current of 50 cycles alternating between 150 v. and 40 v. at a characteristic cadence or rhythm is applied. This ringing current, besides operating relay LD at the calling substation, eventually operates the tuned relay G at the called substation, and relay D energizes to complete the bell circuit. A locally-supplied D.C. bell may be provided. Soon after LD operates the ring-trip relay is connected and responds when the called party answers. Ringing ends automatically after about 6 seconds, whereupon, if there is still no reply, LD releases and energizes the ring-trip relay.