baber/WOPTO huggingface dataset:
Patent GB-1274681-A (GB)
Title: Incandescent lamp
Inventor: KOPELMAN BERNARD
IPC: H01K1/50
Filed: 1969-06-09
Abstract: 1,274,681. Electric incandescent lamp. GTE SYLVANIA Inc. 9 June, 1969 [7 June, 1968], No. 29148/69. Heading H1F. An electric incandescent lamp comprises a transparent envelope, a tungsten filament therein and a filling of inert gas, bromine and mercury. The amount of mercury present should be greater than the stoichiometric amount required to form mercurous bromide.
Patent GB-603901-A (GB)
Title: Improvements relating to thermionic valve systems
IPC: G01S13/78
Filed: 1945-11-05
Abstract: 603,901. Radio signalling ; transponders. FERRANTI, Ltd., TAYLOR, M. K., and WILLIAMS; F. C. Nov. 5, 1945, No. 29284. [Class 40 (v)] In an arrangement employing a number of thermionic valve systems operated in sequence when any one system is in operation a potential is applied automatically to the non-operable systems for rendering the cathode of an oscillator valve positive with respect to its grid. The arrangement is described as applied to an I.F.F. set having a super-regenerative receiver valve 20<1> fed from a quench oscillator, not shown, and connected to a common tuned circuit a<1> to which the aerial is coupled, the output feeding over wire d<1> a receiver system. The output of the receiver feeds a cathode follower modulator valve 29 which pulses over the lengthening circuit f<1>, the transmitter oscillator valve 21<1>. The circuit a<1> is turned to the frequency of one interrogating signal, a second circuit a<11> being tuned to a second signal and associated with similar receiving and transmitting valves 20<11>, 21<11>. A switch blade 7 is arranged to apply H.T. potential from source S to one or other system, and in the position shown, valves 20<11>, 21<11> are in operation, the connection over resistors 24<1>, 28<1> biassing off valves 20<1>, 21<1>. This ensures that valve 21<1> does not pass grid current, while valve 21<11> is being pulsed and when blade 7 reverses, avoids valves 20<1>, 21<1> passing into self-oscillation as may occur without those resistors, while the cathode. biasses are being established. Specifications 585,347 and 591,802 are referred to.
Patent GB-174169-A (GB)
Title: Improvements in connection with boring or cutting tool holders or heads
IPC: B23B29/034
Filed: 1920-10-16
Abstract: 174,169. Francis, H. Oct. 16, 1920. Addition to 142,629. Boring heads and bars.-Relates to boring-heads as described in the parent Specification, and consists in inserting a spring-washer f between the scroll-ring d and the lock-nut e. The washer is feathered on the body c and is tightened against the scroll-ring by a nut e which is permitted a rotation limited between the ends j, j<1> of a recess in the end of the body, by means of a pawl i. A spur k on the pawl is engaged with a notch l to retain the nut e in the slacked-off position while adjusting the cutter blocks.
Patent GB-374358-A (GB)
Title: Improved method or process of and apparatus for manufacturing artificial stone, specially applicable to concrete tiles
IPC: B28B3/12
Filed: 1931-05-26
Abstract: 374,358. Moulding tiles &c. by rolling- machines. ABRAHAM, Ltd., R. and ABRAHAM, R. A., Hawes, Yorkshire. May 26, 1931, No. 29408. Addition to 313,295, [Class 87 (ii), Moulding plastic &c. substances]. [Class 87 (ii).] The pressurerolling means described in the parent Specification, for making concrete tiles and the like, is modified by providing a series of linked pivoted segments C carried by a frame B. The frame or the mould A moves to-and-fro as indicated by the arrows and during the movement the segments exert a combined pressing and rolling action, the pressure being attained for example by thrusting upward the loose bottom of the mould as described in the parent Specification. The range of the rolling movement is regulated so that the toe of the segment at one end of the series and the heel of that at the other end press the extreme edges of the material in the mould to produce an article with sharply-defined edges. The faces of some or all of the segments may be provided with impressions for producing lettering or designs on the moulded article.
Patent GB-1429875-A (GB)
Title: Optical apparatus
IPC: H04B10/25
Filed: 1973-06-21
Abstract: 1429875 Optical communications system E SICK [trading as ERWIN SICK OPTIKELEKTRONIK] 21 June 1973 [22 June 1972] 29488/73 Heading G1A A device 11 for the transmission and receipt of information by light comprises a housing, a light receiver 21, a light emitter 19 and a single light focusing system e.g. lens 13 behind which is mounted a beam-splitter comprising a dichroic mirror 15, light in use received by the light focusing system passing to the beam-splitter and thence to the receiver and light, in use, from the light emitter passing to the beam-splitter and thence to the light focusing system from where it is transmitted. A duplex information transmission apparatus comprises two such devices 11, 12 between which two coaxial light beams travel in opposite directions and which are modulated with the information to be conveyed. Filters 23, 24, 25 and/or 26 may be included between the emitter or receiver and the beam-splitter.
Patent GB-484006-A (GB)
Title: An improved press for the extrusion of lead and other metals
IPC: B21C33/02
Filed: 1936-10-30
Abstract: 484,006. Squirting. CALLENDER'S CABLE & CONSTRUCTION CO., Ltd., and GRIEVE, G. T. W. Oct. 30, 1936, No. 29547. [Class 83 (iv)] An extrusion press comprises a container from which metal is extruded, a main ram whch exerts a steady pressure on the metal, and an auxiliary ram which pumps molten metal into the container, all coaxially arranged. Molten metal is forced into the upper end of a container 2, Fig. 1, and is solidified in its downward passage to the die block 5 by a water chamber 66. The metal is under the constant pressure of a ram 15 which performs relatively small movements with respect to the container 2, and metal is fed into the container by a ram 13 which draws in metal from a chamber 9 through orifices 58 and discharges it through a ball valve 10. The chamber 9 is supplied by a pipe 56. Water under pressure is admitted to a space 30 to exert the constant pressure on the ram 15, and beneath a surface 34 normally to raise the ram 13. Pressure fluid is admitted to a space 44 by a valve 42 to produce downward movement of the ram 13, the valve being controlled by a motor 46 and cam 51, the speed of the motor being varied by a hand operated controller 118. In the event of abnormal upward movement of the ram 15, the operation of the auxiliary ram 13 is temporarily stopped by movement of the piston 48 clear of the cam 51 by means of a rod 93 when its upper end contacts a fixed stop 95. The metal in the upper part of the container and in the chamber 9 is kept molten by burners 63 within a furnace 62, the gases passing also through a flue pipe 64 surrounding the pipe 56. In a modification, a short container 2, Fig. 2, is employed, the main ram 15 being hollow and entering the lower end of the container. A further modified arrangement wherein the main and auxiliary rams engage in opposite ends of a short container is described. In a further modification wherein the rams are concentrically arranged, the main ram is fixed to the head of the press, and the integral container and feeding vessel make a small downward movement when metal is pumped into the upper end of the container by the auxiliary ram.
Patent GB-502200-A (GB)
Title: Improvements in the manufacture of multi-ply tubing
IPC: B21C37/10
Filed: 1937-10-29
Abstract: 502,200. Making multi - ply tubes. GENERAL MOTORS CORPORATION. Oct. 29, 1937, No. 29606. Convention date, Nov. 5, 1936. [Classes 83 (ii) and 83 (iv)] Forging ; bending.-In the manufacture of multi-ply tubing from strips the strips are fed into the machine in overlapped relation, are formed into multi-ply tubular shape between forming elements such as rolls, and finally a swaging operation completes the tube. An adjustable guide for the strips is shown in section in Fig. 18 and comprises a bracket 62, fixed to the frame 60 and carrying a pair of plates 72, 74 having surfaces 68 which incline toward the first pair of deforming rolls 84, 86, Fig. 6. The strips 40, 42 are arranged in correspondingly shaped recesses 76, 78, in the plates 72, 74 which are adjustable by means of set screws 82. The first pair of deforming rolls bends part of the strips at the overlapped part to the required curvature as shown, after which the edges are bent by rolls 100, 102, Fig. 7, having guide elements 88, 90 which maintain the strips in true relation. Thereafter one pair of rolls forces the strips to assume a V-shaped section, another pair produces a U-shaped section. Pairs of rolls commence curling one limb of the U-section which finally assumes a circular form between rolls 132, 134, Fig. 12. Thereupon pairs of rolls act on the other limb which also finally assumes a circular form. In Fig. 20 is shown a rotary swage in which the tube is given its finished form between dies 184 forced inward by heads 182 coacting with rollers 176 carried in a cage 178. The dies 184 and heads 186 are carried in a slot in a rotating spindle 180. At the entrance of the overlapping strips to the machine they are lubricated by the drip feed to a pad resting thereon.
Patent GB-533559-A (GB)
Title: Improvements in and relating to hand-guided, power-operated tractors or like vehicles
IPC: B62D51/00
Filed: 1939-11-08
Abstract: 533,559. Tractors. WATSON, A. V., and COOPER-STEWART ENGINEERING CO., Ltd. Nov. 8, 1939, No. 29612. [Classes 79 (i) and 79 (v)] A hand-guided tractor or like vehicle is 'provided with a handlebar assembly adjustably secured to the tractor so that it can be swung over or reversed and arranged with its handgrips f at either end of the tractor, the engine and gear controls carried by the handlebars being so arranged that they are not effected by the change. Thus if the tractor carries a cultivating tool at what is normally the front of the tractor the handlebars can be swung over so that the tool is at the rear. In the construction shown the handlebar arms b<SP>2</SP> are pivoted at d to a plate b secured at n to a flat-topped frame a on the tractor. The connection at n may be a pivot bolt so that the handlebars, in addition to being capable of swinging in a vertical plane about the pivots d, may be set at an angle to the longitudinal plane of the tractor. The handlebars, when adjusted, are secured by a clamp o secured to a cross member p of the tractor frame and engaging a curved member c of the handlebars. The engine and gears are controlled by levers g, g<SP>1</SP> mounted on concentric shafts on the handlebars and connected by flexible cables m, m<SP>1</SP> to the operated parts on the tractor.
Patent GB-850695-A (GB)
Title: Improvements in or relating to radar systems
Inventor: PLAISTOWE DONALD LEOPOLD
IPC: G01S13/78
Filed: 1957-09-20
Abstract: 850,695. Pulse radar. MARCONI'S WIRELESS TELEGRAPH CO. Ltd. Aug. 18, 1958 [Sept. 20, 1957; Dec. 9, 1957], Nos. 29635/57 and 38192/57. Class 40(7). In a radar system comprising a scanning pulse radar operating at a radio frequency f1, echo pulses of frequency f1 produced by passive reflection are received by a waveguide aerial 4 backed by a reflector 5 and displayed on the red fluorescent screen of a first direct viewing storage P.P.I. C.R.T. 17 and reply pulses of different radio frequency f2 produced by "friendly" craft carrying a transponder 9, 10 are received by a waveguide aerial 7 and displayed on the cyan (blue-green) fluorescent screen of a second direct viewing storage P.P.I. C.R.T. 18, the screens of the two tubes being viewed in superponition by means of a dichroic mirror 30 so that friendly objects producing a response on both tubes will give a substantially white resultant response whereas responses from purely passive objects will appear red; alternative arrangements for producing a superimposed image of the two screens by optical or projection means are illustrated in Figs. 2 and 3 (not shown). Each of the storage C.R.T.s, e.g. tube 17, may comprise a writing gun producing an electron beam which is intensity modulated by video signals applied to a control grid 17a and scans a storage grid electrode 17b to produce a change pattern, the storage electrode 17b being periodically flooded by electrons from a gun 17b to produce a corresponding visual pattern on the fluorescent screen 17f and to erase the charge pattern on electrode 17b; the flooding is effected by applying a pulse to the flood gun or, as shown, to the storage electrode 17b, the pulse being supplied by a generator 28 operating at a subharmonic of the transmitter pulse recurrence frequency. The P.P.I. scan is produced by applying the output from a timebase generator 27 to the X and Y deflection plates 17c, 17d through a resolver 23 rotating synchronously with the aerial. The tube 18 is scanned in a similar manner but its timebase sweep is delayed to compensate for the delay in the transponder 9, 10. An additional height-finding radar with a vertically nodding aerial may be provided, Fig. 4 (not shown), which produces a coloured rangeelevation display in a similar manner to the P.P.I. display of Fig. 1, the adjustable azimuthal direction of the height finder being indicated by a cursor in front of the P.P.I. display tube 17, the cursor comprising a rotatable transparent dial, Fig. 5 (not shown), with a radial hair line.
Patent GB-353327-A (GB)
Title: Improvements in or relating to jelly or like moulds
IPC: A47J43/20
Filed: 1930-10-04
Abstract: 353,327. Moulds for jellies &c. SELLMAN, E., Ionian Works, Church Lane, Wolverhampton. Oct. 4, 1930, No. 29703. [Class 87 (ii).] A jelly or like mould is supported in position by a U-shaped stay member 2 which is pivotally mounted in a socket 3 at the edge of the rim 4 and is formed with bent portions 2b adapted to abut against the underside of the rim. The stay folds over to lie on the rim when out of use.
Patent GB-521546-A (GB)
Title: Improvements in or relating to reversing gear
IPC: F16H3/60
Filed: 1938-10-13
Abstract: 521,546. Epicyclic reversing-gear. GES. FUR FORDERANLAGEN E. HECKEL. Oct. 13, 1938, No. 29726. Convention date, Oct. 13, 1937. [Class 80 (ii)] Two trains arranged between a driving sunwheel 1 and driven carrier 10, and sprocket 11, yield different speeds in opposite directions under control of two brakes, one 3 of which holds the planet-carrier 4 of the first train and the connected sun-wheel 9 of the second to give a reduced low-speed reverse, whilst the brake 12 is applied directly to the periphery of a casing 5 forming the annuli of both trains, to provide a forward drive at a higher, but still reduced speed.
Patent GB-957372-A (GB)
Title: Improvements in or relating to apparatus for emptying silo towers
IPC: A01F25/20
Filed: 1962-08-02
Abstract: 957,372. Rotary cutters. E. HINKE. Aug. 2, 1962 [Aug. 4, 1961], No. 29738/62. Heading A4C. A silo tower 1 for green fodder is emptied through a central aperture 8 in its base 2 and includes a chain cutter comprising a chain 3 carrying offset knives 13, the chain 3 being circulated about an idling gear-wheel 11 and a gear-wheel 10 carried by a bushing 4 driven by a motor 6 through a worm gear 5 and being rotated on a central rotary shaft 9 driven by a motor 7.
Patent GB-272385-A (GB)
Title: Improvements in or relating to drilling machines
IPC: B23B45/12
Filed: 1926-11-24
Abstract: 272,385. Wood, Sir S. Hill-, and Thresher, A. H. Nov. 24, 1926. Ratchet braces.-In a portable drilling- machine the drillspindle 1 rotated by the ratchet lever 2 has a screwed sleeve 4 rotatably mounted thereon, the spindle being provided with adjustable collars 1<a>, 1<b> and the sleeve having collars 4a, 4<b> at its ends. The collars 1<a>, 4a, are lined with washers of material sold under the Registered Trade Mark "Ferodo," which, together with a steel washer 7, form a friction clutch between the spindle and sleeve the clutch being normally maintained in engagement by a spring 5 acting through a ball thrust bearing 5a. In operation the nut 3 engaging the sleeve 4 is prevented from rotating and the sleeve is rotated with the drill-spindle until the feed pressure reaches a predetermined value, when the spring 5 will be compressed, the friction clutch will be permitted to remain stationary within the nut until the feed pressure again falls. Studs and recesses may be provided in the friction clutch to prevent disengagement until the spring 5 has been compressed a predetermined amount. According the the Provisional Specification the nut 3 may be left unpointed to prevent its rotation.
Patent GB-1194610-A (GB)
Title: Switching System having Split Group Hunting
IPC: H04Q3/00
Filed: 1968-06-21
Abstract: 1,194,610. Telephone exchanges. INTERNATIONAL STANDARD ELECTRIC CORP. 21 June, 1968 [17 July, 1967], No. 29767/68. Heading H4K. A P.B.X. hunting arrangement for a crossbar switching system comprises means responsive to the receipt of the directory number designating a group of lines comprising a P.B.X. group to connect the sleeves of a set of lines larger than and containing said group to a means for selecting an idle line within said group. As described, a marker selects a number group connector in accordance with the thousands digit of a wanted subscriber dialled designation and causes it to pass the hundreds, tens and units digits to a corresponding "directory number to equipment number" translator. If the number dialled designates a P.B.X. the translator transmits a spare tone code to the marker to indicate this fact. The tens and hundreds digits are used in the translator to select a sleeve cut through relay common to a set of ten lines. This relay connects the sleeves of these lines to different input terminals of the marker and marks the last line of each P.B.X. group in the set of ten lines on another set of ten input terminals of the marker. In this way each free line in the set enables a corresponding relay of a first set of relays in the marker, and each last line of each P.B.X. in the set of ten lines enables a corresponding relay of a second set of relays in the marker. Each relay enabled in the marker switches over a corresponding changeover contact of an allotting chain. A potential applied to an input of the allotting chain at a point determined by the units digit of the dialled designation (i.e. at a point corresponding to the first line of the P.B.X.) propagates along the chain until it reaches the first switched changeover contact. If it first reaches a changeover contact corresponding to a free line in the P.B.X. it produces an output on a corresponding terminal selecting that line as the one to be used and this output is fed to the translator to be translated to an equipment number. If the potential first reaches a changeover corresponding to the last line of the P.B.X. then an output is produced which causes busy tone to be returned to the calling subscriber.
Patent GB-298823-A (GB)
Abstract: 298,823. Mond, A. L., (I. G. Farbenindustrie Akt.-Ges.). Jan. 11, 1928. Emulsions, making; medicines for external use; insecticides.-Aqueous emulsions cf insoluble organic substances, for example tetrachlorethylene, eucalyptus oil. menthol, for use preferably in diluted form as fat-dissolving and greasing agents, cosmetics, or insecticides or in the preparation of medicines or perfumery are prepared by adding the substances to a mixture of about 40 parts turkey-red oil, 10 parts of potassium ricinoleate, 5-10 parts paraffin oil, 3-5 parts of an alkali salt of an alkyl-naphthalene sulphonic acid and 10-20 parts of water. The mixture may be acidified before or after the addition of the organic compounds by the addition, for example, of hydrocloric acid in order to remove turbidity. Examples of the process are as follow :-(1) 40 parts turkey-red oil, 10 parts potash castor-oil soap and 10 parts of paraffin oil are mixed together and with 12 parts of water and 3 parts of sodium butyl naphthalene sulphonate; 340 parts N of tetrachlorethylene followed by 16 parts of - 100 hydrochloric acid solution are then added. The product is dilutable with water to any extent. (2) To a mixture of 28.5 parts turkey-red oil, 7.14 parts potash castor oil soap, 3.6 parts paraflin oil, 0.43 parts sodium bicarbonate, 3 parts of sodium butylnaphthalene sulphonate and 14.3 parts of water prepared as above, 47 parts eucalyptus oil are added. A clear solution is produced.
Patent GB-1218552-A (GB)
Title: Improvements relating to 3-point tractor linkages
Inventor: ADAMS FREDERICK JOHN
IPC: A01B63/112
Filed: 1967-06-28
Abstract: 1,218,552. Tractor power lift linkages. CAM GEARS (LUTON) Ltd. 25 June, 1968 [28 June, 1967], No. 29896/67. Heading A1P. For draft and position control in a tractor three-point linkage a lower link 2 is pivoted on a crank 6 so that it can move longitudinally of the tractor against a biasing spring 7. A bell crank extension 2A of the link engages an operating lever 16 for a valve 13 controlling ram 11. The other end of lever 16 is controlled manually by lever 17. For draft control the horizontal draft force in the link 2 is sensed and transmitted to the valve by longitudinal movement of the link. For position control the angular movement of the link operates the valve via crank 2A. In embodiments the signals operating the lever 16 are derived from an upper link or else from the lift arms operated by the ram.
Patent GB-1372547-A (GB)
Title: Container closure constructions
IPC: B65D8/02
Filed: 1971-10-05
Abstract: 1372547 Making tag ring elements; stamping AMERICAN FLANGE & MFG CO Inc 5 Oct 1971 [5 April 1971] 29987/73 Divided out of 1327545 Headings B3A and B3Q [Also in Division B8]  A tag ring element 7 for reinforcing a container wall opening surrounded by an upwardly drawn neck and providing identifying tag and closure seal affixing means, comprises a flat annular blank having an outermost free edge 9, a circular central opening 8 and at least one eyelet 10 formed in the blank, the central opening having a diameter which, in use, enables an inner portion of the annular blank surrounding the opening to be drawn upwardly into a cylindrical neck adapted to overlie the container wall opening neck. Methods and apparatus for forming the container closure are disclosed in Specification 1,372,545.
Patent GB-717473-A (GB)
Title: Improvements in or relating to adjustable attenuator apparatus
Inventor: LEARNED VINCENT ROY
IPC: H01P1/22
Filed: 1952-11-27
Abstract: 717,473. Variable attenuator. SPERRY CORPORATION. Nov. 27, 1952. No. 30076/52. Addition to 668,590, [Group XXXVII. Class 40 (8) A variable attenuator is made by using the open transmission line construction described in the parent Specification in conjunction with a resistive element, e.g. as at 42, 44, which extends into the rectangular space between planar or parallel plate conductors 10, 12 and into proximity with the central conductor 22. The segmental resistive cards 42, 44 are disposed on opposite sides of central conductor 22 and each has a resistive surface facing plate 10 or 12 and an insulating surface which slides across and m contact with the central conductor 22 with movement up or down of shaft 48 via hand e 49 and with reference to a scale 56. If desired, a conductor of elliptical cross-section may be employed as shown in Fig. 4. Specification 634,400 also is referred to.
Patent GB-374749-A (GB)
Title: Improvements relating to resilient padding for laundry machinery
IPC: D06F83/00
Filed: 1931-10-30
Abstract: 374,749. Laundry machinery. TULLIS Ltd., D. & J. and JACK, W., Kilbowie Iron Works, Clydebank, Dumbartonshire. Oct. 30, 1931, No. 30084. [Class 138 (ii).] Padding for laundry machinery, for example ironing-machines, comprises a metallic carrier strip 1 on which a plurality of springs are threaded. The springs are wound in pairs and their connecting convolutions 4 are located beneath the strip and their adjoining convolutions 5 are located above the strip. A reinforcing rib or flange 6 may be formed between the adjacent rows of springs.