baber/WOPTO huggingface dataset:
Patent GB-498255-A (GB)
Title: A combined pioneering implement
IPC: F41F1/06
Filed: 1937-10-23
Abstract: 498,255. Combination tools. KAUFMANN, X. Oct. 23, 1937, Nos. 28953 and 28954. Convention dates. Oct. 24, 1936 and July 6, 1937. [Classes 61 (i) and 61 (ii)] [Also in Groups I and XXI] In a combination implement comprising a spade handle 1 and blade 2 with sharpened edges 3 serving as a hatchet and pointed end 4 for use as a pick, a saw 7 accommodated in the handle and a wire cutter, the latter is formed by the upper end 10 of the pivoted saw blade coacting with cutter jaws 11 on the upper end of the spade handle and there are also provided a grenade firing sleeve 16 with striker bolt 24 and pin 25 placeable on the end of the spade handle and retained thereon by a snap-head 17 mounted on the pivot 6 of the saw, together with a closure cap 29 adapted to be held on the end of the grenade firing sleeve by a snap-head 30 when not in use or on the upper end of the spade handle in place of the grenade firer, which latter and the closure cap serve as a gripping extension of the spade handle. In the construction shown in Figs. 1, 2 and 4, the saw is retained folded down into the handle or extended in line therewith by a pin controlled by a trigger 12 adapted to engage holes 15 in the saw. The grenade 19 of known kind with a firing charge is fired from the end 18 of the sleeve 16 by means of a ring 20 having a pin 21 projecting through a V-slot 22 in the sleeve 16 into an annular groove 23 in the bolt 24 carrying the striker pin 25, which bolt is projected forward by a spring 26 when ring 20 is rotated to move the pin 21 past the apex of the V-slot. In a modification shown in Fig. 10, the saw 36 which is sharpened at 37 in the manner of a bayonet is detachably pivoted to the end of the spade handle 32 by a pin 47 controlled by a trigger 46 and has a shearing nose 40 coacting with shearing jaws 49 ; the grenade firing sleeve 51 is adapted to be assembled on the end of the spade handle whilst the saw is pivoted thereto as shown in Fig. 6, by providing opposite slots 52, 53 to clear the saw blade and a shorter slot 54 to lock with the pin 47, the saw then serving as a prop to support the spade handle 32 slantingly whilst firing grenades. The saw is provided with a handle 39 and may be housed in the spade handle or may project therefrom, holes 42, 43 being provided to lock with the pin 47,
Patent GB-187970-A (GB)
Title: Improved treatment of sea-weed
Filed: 1922-10-24
Abstract: Seaweed is heated at about 100 DEG  C. with a saturated solution of calcium bisulphite to obtain a liquor containing iodine and sugars, gums &c.  The residue is treated with a dilute solution of sodium carbonate to obtain a liquor containing algin, and a residue of cellulose impregnated with agglutinants.  The alkaline solution is decolorized, alginic acid is precipitated by a mineral acid, filtered, washed and dissolved in ammonia, the solution being evaporated or transformed into sodium alginate.
Patent GB-603852-A (GB)
Title: Improvements in or relating to expansion joints for pipe-lines
IPC: F16L51/02
Filed: 1945-11-01
Abstract: 603,852. Expansion joints for pipe lines. DUNLOP RUBBER CO., Ltd., and WALSH, A. O. Nov. 1, 1945, No. 28977. [Class 99 (i)] An expansion joint for pipe lines comprises an annular member 1 of U-shaped section made of rubber or the like reinforced with textile material 1c, the member having inwardly disposed end walls 1d with beaded ends 1e, preferably containing wire reinforcement 2, and these walls being adapted for connection to the end flanges 4a of contiguous pipes 4 by means of the bolts 5 and rings 3. The member may be arranged so that the bolts do not pass through it, in which case a recess may be formed in each ring 3 to receive the beaded end of the wall 1d. The ring 3 may be segmental. The Provisional Specification describes the member 1 as a corrugated tube with inwardly turned end flanges.
Patent GB-175343-A (GB)
Title: An instrument for determining the sex in plant life and incubative matters
IPC: G01N33/08
Filed: 1920-10-13
Abstract: 175,343. Alver, O. P. Oct. 13, 1920. Sex, determining. - An instrument for determining the sex in plant life and other incubative matters, consists of two cylindrical conducting members 1, 2, each containing a coil of zinc embedded in bicarbonate of soda suspended by a metal chain 7 from a casing 12. It is stated that when the instrument is suspended over an object to be tested, physical magnetism or electricity generated between the operator and the object tested causes a reciprocating or rotary motion of the members 1, 2 according to whether the object is of the male or female sex.
Patent GB-331145-A (GB)
Title: Improvements in counting apparatus
IPC: G06M1/22
Filed: 1929-09-25
Abstract: 331,145. Bowser & Co., Inc., S. F. April 18, 1929, [Convention date]. Zeroizing-mechanism.-To prevent the reading of any number on a counter other than zero or the total reached, a shutter automatically moves over the reading aperture when the counter spindle is operated to zeroize. As shown in Fig. 3 applied to a counter for measured quantity delivering apparatus, the zeroizing spindle b controlled by a spring g rocks a lever h, carrying a shutter i, when 'the spindle is pulled to the right preparatory to zeroizing. To prevent reverse turning of the spindle a helical spring l anchored at one end may be applied to the spindle and the knob d may be screwed on the spindle so as to come off when turned in the wrong direction.
Patent GB-1429049-A (GB)
Title: Machine tools
IPC: B23Q39/02
Filed: 1973-06-20
Abstract: 1429049 Tool changers; drilling; milling SCHIESS AG 20 June 1973 [21 June 1972] 29268/73 Headings B3B B3C and B3K A machine tool comprises a horizontally movable spindle head 5, a vertically movable cross beam 4, a magazine 7 for storing tool heads 12, and a spindle slide 6 in the spindle head 5, and is characterized in that a tool head 12 is attached to the spindle 20 by interengaging projections 44, 45 on the said head and a flange 43 on the end of a spindle sleeve 28 to form a bayonet connection, and spring biased pins 47 engage recesses in the projections 44 at a locked position, and wherein an annular groove 16 is provided for radial engagement with one of a plurality of forks 14 in the magazine 7 during tool head exchange. The rotary spindle 20 has teeth 53 formed on its end to drive gearing in the tool head to rotate a tool receiving sleeve 56. The tool receiving sleeve may be aligned with the spindle axis or at right angles thereto (Fig. 10, not shown). Alternatively the tool head may have four non-rotary tool steels (Figs. 8 and 9, not shown). The tool heads 12 and spindle sleeve flange 39 are provided with inter-engaging teeth 41, 42 to prevent relative rotation. During a tool head exchange the spindle head is moved horizontally to engage the groove 16 with a fork 14 in the magazine 7. The tool head is released and the spindle slide 6 raised to separate the spindle from the tool head. The magazine 7 has a plate 10 indexable around an axis 9. The spindle 20 is rotated by a motor (18) (Fig. 2, not shown) through a change gear arrangement (22), (23), (24), (25). A further motor (19) raises and lowers the spindle sleeve 28 via a rotary nut (32) to release and clamp a tool head. At the end of its lowering movement dogs (34), (35) engage to rotate the sleeve 28 to disengage the bayonet connection projections 44, 45. A cam flange (31) is provided on the nut (32) to actuate limit switches for clamping and releasing positions and for angular orienting positions of a tool head.
Patent GB-670823-A (GB)
Title: Improvements in and relating to amplitude comparison circuits
IPC: G01R19/28
Filed: 1949-11-16
Abstract: 670,823. Current and voltage measuring. BRITISH THOMSON-HOUSTON CO., Ltd. Nov. 16, 1949 [Nov. 26, 1948], No. 29346/49. Class 37. [Also in Group XXXV] A probe 3, Fig. 1, derives a voltage proportional to and in phase with the voltage in a transmission line 1, 2 and a loop 5 develops a voltage proportional to and in phase with the current in the transmission line ; each derived voltage is applied to one of a pair of reversed diodes 9 to develop in resistance 10 a D.C. voltage proportional to the difference of the derived voltages; this voltage is amplified at 12, 13 to actuate one or other of relays 21, 22 to operate reversible motor 24 which adjusts a variable tuning element 25, as in Specification 664,227. In a modification, the diodes 9, Fig. 2, are fed from two probes spaced a quarter wavelength apart, so that the difference indicates the standing-wave ratio and thus indicates the correctness of the matching of the load to the line.
Patent GB-599057-A (GB)
Title: Determination of well pipe perforations
IPC: E21B47/09
Filed: 1945-11-05
Abstract: 599,057. Tools for the recording of well perforations. GRANT OIL TOOL CO. Nov. 5, 1945, No. 29355. Convention date, Nov. 3, 1944. [Class 85] A tool for recording the condition of perforations in a well casing comprises a tubular body 10 screwed on to a drill pipe 12. During vertical movement of the tool the well fluid passes through chamber 13 and passages 14 so equalizing the pressures above and below the tool. The same pressure is maintained in a rubber tube 28 surrounding the body 10, the fluid passing through a valve assembly 18 and a passage 35. A nut 331 on the end of the body 10 retains the tube 28 and sealing assemblies 29 and 30 in position. Around the tube 28 is positioned a recordforming element 38 such as a thin sheet of tin. When the tool is at the desired level high pressure fluid is pumped down the tube 12, closing the valve 18 and expanding the tube 28 so forcing the recordforming element against the casing and into the perforations 45 and 46. On reducing the pressure the -recording element is withdrawn from the casing wall and the tool is raised.
Patent GB-407124-A (GB)
Title: Improvements in non-fogging photographic packing materials
IPC: G03C3/00
Filed: 1932-10-20
Abstract: 407,124. Treating paper pulp. KODAK, Ltd., Kingsway, London.-(Assignees of Sheppard, S. E. ; Kodak Park, Rochester, New York, U.S.A.) Oct. 20, 1932, No. 29381. Convention date, Oct. 20, 1931. [Class 96.] In the production of paper or chipboard for photographic packing materials, potassium permanganate is added to the stock in the beater in order to decompose or inhibit the formation of hydrogen peroxide and to obviate fogging of the photographic emulsion. Specifications 10078/06, [Class 98], 290,604, [Class 98 (i)], and 332,743, [Class 96], are referred to.
Patent GB-605961-A (GB)
Title: Television transmitting system
IPC: H04N5/257
Filed: 1945-11-05
Abstract: 605,961. Television. FARNSWORTH TELEVISION & RADIO CORPORATION. Nov. 5, 1945, No. 29393. Convention date, Feb. 15. [Class 40 (iii)] In a television transmission system a twoelectrode unilaterally conducting device, arranged to conduct in response to video signals and to be non-conducting in response to blanking signals, is connected between a source of video signals and a utilization circuit, means controlled by the video signals being provided for impressing on the electrode of the unilaterally conducting device which is connected to the utilization circuit a voltage which varies in accordance with the average value of the video signals and which is of the same polarity as the voltage impressed on the other electrode of the unilaterally conducting device by the video signals whereby the inter-electrode potential of said device is maintained substantially constant irrespective of variations of the average illumination intensity of the television subject. As shown in Fig. 1, vision signals developed across the output load resistors 19, 21 of an image analysing tube 11 are applied to the cathode of a diode 22, the anode of which is biassed by means of potentiometer 17 such that the diode is on the threshold of conduction when the signals applied to the cathode have a minimum negative value, i.e. representative of picture black." When " white " signals are applied to the diode, corresponding signals are impressed on the utilization circuit 25, but during blanking intervals, a positive voltage developed in the cathode circuit of valve 27 under the control of a source 26 renders the diode non-conducting. To ensure that the blanking signals always bear a fixed relationship to the voltage representative of " picture black," irrespective of changes in the average value of the video signal, a compensating voltage developed between earth and the slider 24 of potentiometer 17 is impressed on the anode of the diode such that the average interelectrode potential is maintained substantially constant. This compensating voltage varies in accordance with the average variation in the video signal level and is produced by integration of the video signals by means of the distributed and stray capacity in the feed-back circuit comprising the potentiometer 17. In an alternative arrangement, Fig. 2 (not shown), the compensating voltage is developed across an impedance element connected in the load circuit of the diode and subject to traversal by the low-frequency component of the video signals, the high-frequency components being byepassed through a condenser.
Patent GB-459735-A (GB)
Title: Improvements in or relating to means for transmitting television signals or the like
IPC: H04N3/40
Filed: 1935-10-24
Abstract: 459,735. Television. GENERAL ELECTRIC CO., Ltd., Magnet House, Kingsway, London, and ESPLEY, D. C., c/o General Electric Co., Ltd., Wembley, Middlesex. Oct. 24, 1935, Nos. 29400/35 and 19554/36. [Classes 40 (iii) and 40 (v)] The high frequencies and directcurrent components of a picture signal are separately generated, and separately amplified before being combined. As applied to a film transmitter, the cell 11, Fig. 1, views the whole film to provide the direct current components which are amplified at 14 and combined with the high frequencies amplified at 10 and generated by scanning the film onto a cell 1. The cell 1 may be replaced by an iconoscope. The cell 11 may be illuminated by the scanning beam instead of the whole picture. The direct-current amplifier comprises either a singlestage direct-coupled valve, or means for modulating the direct-current components onto a carrier (e.g. of 50 cycles), amplifying the modulated carrier and demodulating. As shown in Fig. 2, the cell 11 is fed with 50- cycle current from transformer 31 and valves 22, 23, 24 amplify the modulated carrier. A low-pass filter 28 in the output of the detector 27 eliminates frequencies exceeding 10 cycles/second. Specifications 291,370, [Class 40 (iii)], 401,563, 439,164, and 448,065 are referred to.
Patent GB-603923-A (GB)
Title: Improvements in or relating to connecting and holding terminals and the like
IPC: H01R4/34
Filed: 1945-11-06
Abstract: 603,923. Binding-posts. SPENCER, W. H., and CLATWORTHY, T. Nov. 6, 1945, No. 29433. [Class 38 (i)] A terminal comprises a base having a groove of uniform width and with inclined sides in its upper surface into which another member is screwed to clamp a wire or wires. As shown, two wires e, e<1> are clamped between the underside of the head of screw c and the surface b.
Patent GB-483746-A (GB)
Title: Improvements in screws or screw bolts
IPC: F16B35/04
Filed: 1936-10-29
Abstract: 483,746. Bolts. BAUER & SCHAURTE RHEINISCHE SCHRAUBENUND MUTTERNFABRIK AKT.-GES. Oct. 29, 1936, No. 29443. Convention date, Oct. 29, 1935. [Class 89 (i)] A screw or screw-bolt comprises a threaded end portion, an unthreaded non-tubular shank 1 adjacent the threaded end portion and of substantially the same outer diameter as the thread, and a plurality of bores 2 in the shank extending transversely of its axis to increase the elasticity of the shank, said bores having such dimensions and being so disposed that the solid area of any cross-section of the bored part does not exceed the cross-sectional area of the core of the thread. The bores may be so arranged that the projections of their longitudinal axes upon a plane normal to the axis of the screw or bolt are inclined, or they may be parallel.
Patent GB-992696-A (GB)
Title: Improvements in or relating to furnaces
IPC: H05B7/08
Filed: 1961-08-16
Abstract: 992,696. Arc melting furnaces. UNION CARBIDE CORPORATION. Aug. 16, 1961 [Aug. 17, 1960], No. 29487/61. Addition to 866,106. Heading H5H. An arc furnace includes an arc torch having a fluid-cooled electrode holder on the end of which a refractory electrode is mounted, and a gas nozzle surrounding the electrode and having a relatively wide inlet adjacent the junction of the electrode holder and the electrode and a constricted outlet portion, the electrode extending into, but not beyond, the latter portion, whereby the electrode is protected from erasion by metal splash and the furnace atmosphere. Electrode 80, of tungsten, tantalum, columbium, or molybdenum, and containing small amounts of thoria or yttria, is mounted on the end of the copper electrode holder 82, which is cooled by water passing through axial passage 90 and annular passage 94, the lead for the electrode being connected at 134. Spacers 136 and 138 insulate the surrounding tubular member 118, on the end of which is mounted the nozzle 100 provided with a refractory insulating liner 122. The nozzle is water cooled via passages 108 and 110, and an inert shielding gas e.g. argon or helium, is supplied to the nozzle via passage 126. Alternatively, hydrogen or nitrogen may be employed, to provide additional heat. For operation at high current an electrode having an axial passage is employed (Fig. 2, not shown), through which additional inert gas is passed for ejection at the nozzle. In a further furnace torch (Fig. 3, not shown), for use at low power, a single coolant circuit cools both the outer tubular member and the nozzle, and the electrode holder and the electrode. The arc may be initiated by maintaining a low power pilot arc between the electrode and the nozzle. Other furnaces described-with numerical data-include arrangements in which the arc is struck between the torch and the furnace charge, and between the torch and a watercooled rotating graphite electrode.
Patent GB-688503-A (GB)
Title: Method for correcting differences of level in the bedding of railway sleepers and apparatus for carrying the said method into effect
IPC: E01B27/18
Filed: 1950-12-04
Abstract: 688,503. Packing railway sleepers. SCHEUCHZER, A. Dec. 4, 1950. [Dec. 12, 1949] No. 29594/50. Class 104 (ii). For levelling railway rails coarse gravel is projected into a space formed between a previously raised sleeper and the ballast thereunder by means of compressed air. Compressed air fed through a flexible pipe 7 to ejector channels 10 on the underside of a pipe 5 blows gravel, fed from a container 4 to an upper channel 9, into a space formed between the underside of the sleeper 13 and the ballast B. A gauge 15 is placed on the end of a raised sleeper so that a nozzle 6 fitted on a pipe 5 can be aligned with an orifice 18 to direct gravel into the space to be filled. A rubber sleeve 60 on the end of a nozzle 6 prevents the escape of air and gravel. A bar 19 may be used to limit the extent of the packed gravel within the space beneath the sleeper 13. Nozzle arrangements are described for feeding gravel in either a horizontal direction parallel to a wooden or steel sleeper from the sleeper side between the rail and sleeper end or in an upwardly directed manner parallel and perpendicular to the sleeper. Fig. 11 shows a bell mouthed nozzle to spread gravel fanwise. The gravel flow from the container 4 to the channel 9 can be varied by operating flaps 20 linked to a lever 21. The channel 10 may be divided over part of its length to form two smaller channels arranged below, Fig. 4 (not shown), laterally of, or above the channel 9. More than two channels arranged in any of the above manners may be used.
Patent GB-639961-A (GB)
Title: Cellulose derivative compositions
IPC: C08K5/11
Filed: 1947-11-06
Abstract: Cellulose propionate containing 0.2 to 0.4 free hydroxyl groups per glucose unit is plasticized by addition of a di-ester containing at least 14 carbon atoms and derived from an acid of formula COOH.(CH2)n.COOH where n is 0 or an integer from 1 to 10.  The acid may be esterified with alkyl, alkoxyalkyl, cycloalkyl, alkaryl, hydroaryl, aryloxyalkyl or aryl radicals. Dibutyl sebacate and dibutoxyethyl sebacate are preferred as plasticizers, but other suitable compounds are dibenzyl sebacate, butyl benzyl sebacate, dioctyl oxalate, dioctyl azelate, dihexyl adipate, dioctyl succinate, didecyl succinate, dioctyl adipate, didecyl adipate, ditetrahydrofurfuryl adipate, dihexyl sebacate, dioctyl sebacate, di-benzyl "Carbitol" sebacate, dibutoxyethyl succinate and dibutoxyethyl adipate as well as the di-hexyloxyethyl and diphenoxy ethyl esters of succinic, adipic and sebacic acids.  The choice depends upon the properties desired in the composition.  Auxiliary plasticizers which may be used are butyl stearate, butoxyethylstearate, the phosphate esters such as trioctyl phosphate, phthalate esters such as dibutyl phthalate, glycollate esters such as ethyl phthalyl ethyl glycollate as well as hydrocarbons such as mono-amyl naphthalene, diamyl naphthalene, or a mixture of partially hydrogenated isomeric terphenyls.  The plasticizer is incorporated to the extent of 5 to 30 per cent by weight of the cellulose propionate. The compositions may be coloured with pigments or dyes or rendered iridescent by addition of pearl essence or the like.  1 to 2 per cent of light stabilizers such as phenyl salicylate, and 0.1 to 0.5 per cent of viscosity stabilizers such as magnesium acetate or calcium lactate may also be added.  In an example, 100 parts by weight of cellulose propionate containing 0.29 free hydroxyl groups are combined with 15 parts by weight of a 4 : 1 mixture of dibutyl sebacate and butoxyethyl stearate and one part by weight of a suitable black dye.  The mixing is done on converting rolls heated to about 300 DEG  F., giving a composition suitable for injection or compression moulding.  Specification 639,960 is referred to.
Patent GB-1237684-A (GB)
Title: Musical instrument
Inventor: MCLOUGHLIN JAMES JOSEPH
IPC: G10H3/09
Filed: 1967-06-27
Abstract: 1,237,684. Electrophonic musical instruments; recording and playback. J. J. McLOUGHLIN. 26 June, 1968 [27 June, 1967], No. 29599/67. Headings G5J and G5R. An electrophonic musical instrument comprises a plurality of drums 10 rotated by a motor 30, each drum carrying recordings of different notes of a conventional musical instrument at different axial positions to co-operate with respective pick-up heads 15 connected to an amplifier 18 via key switches 17. The drums have notes of different musical instruments and are arranged on a carrier 11 to be brought selectively against the heads 15 by rotating knob 34. The attack and decay characteristics of the respective instruments are introduced by the circuits S 1  to S 6  selected by the knob 34. To provide for simultaneous playing of melody and accompaniment, the keyboard 16 is divided into three parts: the lower notes which are connected to circuits S 1  to S 6  directly, the upper notes through an auxiliary amplifier 22, the intermediate notes being connected either way by switches 23. Pedals 27, 28 control the gain of amplifiers 18 and 22. Each drum comprises a central roll with a covering of resilient foam plastics material and an outer layer of magnetic recording film.