baber/WOPTO huggingface dataset:
Patent GB-370765-A (GB)
Title: Improvements in protecting covers for cut crops
IPC: A01F25/10
Filed: 1931-07-07
Abstract: 370,765. Preserving crops. STEUP, C. H., Stockhausen, near Marienberg, Westerwald, Germany. July 7, 1931, No. 19567. [Class 5 (i).] Cut crops are protected from rain by a truncated conical hood a made from a sheet of waterproof material and provided with vertical rows of fastening. elements c, c<1>, c<2>, to which an edge of the sheet that is provided with co-operating elements b may be connected. The hood is made of material such as American cloth, impregnated canvas, or natural or imitation leather. The top of the hood is covered by a roof plate f that may be connected to the hood by cords h and is supported above the hood by an upright o on a cross piece n. Air vents e, covered by flaps g the opening of which may be controlled by cords i or springs, are provided in the sides of the hood. The hood is retained in position by pegs l attached to the hood by cords m and driven into the sheaf or into the ground. The hood may be made in superimposed sections and reinforced by rings and rods.
Patent GB-225259-A (GB)
Title: Improvements relating to horns for sound reproducing apparatus
IPC: H04R1/34
Filed: 1923-07-31
Abstract: 225,259. Walker, D. F. July 31, 1923. Organ flue-pipes are built up of longitudinal strips 1, Fig. 2, of three-ply wood having perpendicular edges 2, the V-shaped grooves between the edges of adjacent strips being first lined with a liquid glue 4 which spreads itself as shown and then filled with an agglutinous wood paste 5 which contracts and hardens whilst drying. The exposed ends, for example the outer end 6, Fig. 3, may be strengthened bv staples 8 inserted in apertures in the centre ply which are afterwards filled up with wood paste, or by surrounding wooden bands. The method of jointing is particularly suitable for curved pipes, for example, the octagonal pipe shown in Fig. 14, and directions are given for determining the size and shape of the various component strips. The windway is formed by an elongated octagonal partition 25 having an extension 25<*>, and tuning is effected by means of an adjustable flap 28 which may be locked in any position and, if made of wood, acts as a resonator.
Patent GB-518713-A (GB)
Title: Improvements in or relating to rectifier arrangements
IPC: H02M7/06
Filed: 1938-07-02
Abstract: 518,713. Rectifying alternating current. NIND, E. A., and BEVAN, P. A. T. July 2, 1938, No. 19652. [Class 38 (ii)] In polyphase (including bi-phase half wave) rectifiers 5 feeding a load through a smoothing choke 7, deleterious effects arising through overlap in the commutating interval are avoided by connecting across the output terminals of the rectifier a condenser'9 of such capacity as to form in conjunction with the leakage reactance of the supply transformer 1 a circuit tuned to the ripple frequency, i.e., the supply frequency multiplied by the number of phases. A resistance 10 is included in the said circuit to limit the current throngh the condenser to a maximum value equal to the current supplied to the load.
Patent GB-417732-A (GB)
Title: Improved manner of and apparatus for forming balls or rolls of sliver
IPC: B65H54/38
Filed: 1933-07-11
Abstract: 417,732. Sliver balling apparatus. PATERSON, H., c/o Belvedere Jute Mills Co., Sankrail, Bengal Nagpur Railway, Bengal, India. July 11, 1933, No. 19686. Convention date, April 21. [Class 120 (i).] In a sliver-balling machine having discs or side plates 2 between which the ball is formed on axially retractable half arbors or centres 3 and means to drive the centres or the ball being formed thereon, hollow cores 4 are provided which are slipped over each centre 3 each time a fresh ball of sliver is to be commenced. Each boss 3 is formed with a base 9 having a central projection 8. On completion of a ball of sliver the bosses are retracted as shown on the left of the Fig., the completed ball is discharged and a fresh hollow core 4<a> drops into position from each magazine 7 the centre bosses then being brought together again and winding recommenced. Specifications 412,044 and 418,158 are referred to.
Patent GB-351260-A (GB)
Title: Improvements in or relating to foot-operated tyre and like inflators
IPC: F04B33/00
Filed: 1930-06-30
Abstract: 351,260. Foot air pumps. TURNER, W., 44, Eyre Lane, Sheffield. June 30, 1930, No. 19770. [Class 8 (i).] A foot-actuated tyre inflator &c. is provided with a lever a connected to the underside of the footplate c of the operating levers d and adapted, by a cam action, to engage a lug h on the base of the cylinder, and retain the parts in their closed, inoperative positions.
Patent GB-935812-A (GB)
Title: Process for making capsules by coacervation
IPC: B01J13/10
Filed: 1962-05-23
Abstract: A process for producing capsules having gelled polymeric material walls and nuclei of water-immiscible material includes the steps of establishing a condition of coacervation in an aqueous system containing two or more hydrophilic film-forming polymeric materials, lowering the temperature of the system with agitation, introducing nucleous particles, keeping the system at this temperature until the desired wall thickness is obtained, and dropping the temperature, still with agitation, to a point where the deposited walls gel regardless of the agitation.  Five examples of the process are described.  Specifications 751,600 and 872,713 are referred to.
Patent GB-1424535-A (GB)
Title: Signal correlators
IPC: G06F17/15
Filed: 1972-04-28
Abstract: 1424535 Signal correlators IMPERIAL CHEMICAL INDUSTRIES Ltd 16 April 1973 [28 April 1972] 19785/72 Heading H3H Apparatus is provided for determining an interval of transposition with respect to a parameter of a first signal with respect to a second signal which interval produces the best match between the signals, and employs a first store which is in the form of a shift register for storing a succession of values of samples of the first signal and means for multiplying each value or a sub-set of values by a value of the second signal which is coincident with, or separated by a constant interval of the parameter from the last value fed into the store, and a second store and means for adding the multiples to values held in corresponding locations in the second store to produce running totals in each of these locations, and a comparator to determine the location of the highest value stored in the second store. In the embodiment shown the parameter is time, and two spaced transducers 1, 2 are provided for measuring, e.g. sonic waves in a fluid in a pipe-line. Each signal is converted to a 2-bit binary word at 3, 4 and the output at 3 is taken to 100-stage shift register 5, that from 4 being taken to the inputs of a two-stage flip-flop store 10. A clock source 8 provides pulses at each of which the shift register 5 takes in a new value from the converter 3 and the store 10 is updated from converter 4. Each clock pulse also starts a cycle of address unit 7 which causes sequential read-out of the values in each stage of register 5 by means 6 between each pulse emitted from the source 8. Thus by means of multipler 9, the sample held at 10 of the second signal is multiplied with the present and 99 preceding values of the first signal. Each of these multiples is applied in turn to an adder 12 for addition to a value stored in a corresponding location in a second 100 position store 13, and the sum is replaced for this former value in the same location and is also applied to a comparator 16. If this value is greater than a value stored at 17, this is read into the store 17 and the location address is stored at 18, and transferred to a buffer store 19. After, e.g. 1024 clock pulses as determined by counter 21, the measurement is stopped and the address value stored at 19 is transferred to display 20 where, e.g. the velocity of fluid flow may be read-out directly.
Patent GB-905828-A (GB)
Title: Improvements relating to trioxane copolymers
IPC: C08G2/00
Filed: 1961-06-01
Abstract: A copolymer of trioxane and an epoxide of general formula <FORM:0905828/IV(a)/1> where R is a substituted or unsubstituted alkyl, aryl, aralkyl, alkaryl, or cycloalkyl group is prepared by polymerizing the mixture using as catalyst a stable trialkyl oxonium salt in amount 10-2 to 10-6 moles per mole of trioxane.  Specified epoxides are propylene oxide and epichlorohydrin while triethyloxonium fluorborate or hexachloroantimonate are specified catalysts.  Solvents such as aliphatic and aromatic hydrocarbons and their chlorinated products may be present.
Patent GB-1510512-A (GB)
Title: Flock of synthetic fibres for electrostatic flocking
IPC: D06M11/46
Filed: 1975-05-13
Abstract: 1510512 Treating flock BAYER AG 13 May 1975 [2 July 1974 28 Nov 1974] 20084/75 Headings DIP and D1R A flock of viscose rayon, polyester, polyamide or polyacrylonitrile fibres is treated with a mineral tanning agent comprising Zr(OH) 2 SO 4  + SiO 2  . H 2 O . Na 2 SO 4 , ZrOCl 2  or zirconium sulphate. The tanning agent may also contain aluminium sulphate and basic chromium sulphate. Preferably, 0.01 to 2% of the tanning agent is deposited on the flock from an aqueous acidic 30 to 100C bath of the tanning agent. The flock may be further treated with a finishing agent. The finishing agent may be added to the tanning agent bath 10 to 30 minutes after the flock or the flock can be filtered off and added to a bath of the finishing agent. 0.05 to 10% by weight of the finishing agent, based on the flock, is employed. Specified finishing agents are C 12 H 25 OSO 3 Na, C 18 H 37 OSO 3 Na, C 12 H 25 O(CH 2 CH 2 O) 4 SO 3 Na, [C 18 H 35 O(CH 2  CH 2 O) 5 ] 2 PO 2 Na, sulphonated olive oil, castor oil, sperm oil or beef tallow, RCON(CH 2 CH @  OH) 2 , RCOO(CH 2 CH 2 O) 6 H or RO(CH @  CH 2 O) 20 H, where R is C 18 H 37 . The finishing solution may contain 1 to 30% by weight of sodium chloride. The treatment reduces the surface resistance to between 7 x 10<SP>6</SP> and 3 x 10<SP>8</SP> ohms and renders the flock free flowing, springable and suitable for electrostatic flocking.
Patent GB-651585-A (GB)
Title: A new dyestuff intermediate
Filed: 1948-07-28
Abstract: 6 - Nitro - 4 - keto - 1 : 2 : 3 : 4 - tetrahydro - 2 - naphthoic acid is manufactured by nitrating 4 - keto - 1 : 2 : 3 : 4 - tetrahydro - 2 - naphthoic acid.  In an example, the nitration is effected with a mixture of nitric and sulphuric acid and the product is isolated by pouring the reaction mixture on to ice and filtering. 4 - Hydroxy - 6 - nitro - 2 - naphthoic acid is obtainable by brominating 6 - nitro - 4 - keto - 1 : 2 : 3 : 4-tetrahydro-2-naphthoic acid and dehydrohalogenating the product with diethylaniline.  6 - Amino - 4 - naphthol - 2 - carboxylic acid is obtainable by reduction of 4-hydroxy-6-nitro-2-naphthoic acid, e.g. with gaseous hydrogen in the presence of Raney nickel in alcoholic medium.  4-Nitrophthalic acid is obtainable by oxidation of 6-nitro-4-keto-1 : 2 : 3 : 4-tetrahydro-2-naphthoic acid in alkaline permanganate solution.
Patent GB-1535491-A (GB)
Title: Apparatus for controlling and positioning a slide of a machine tool
IPC: B23Q16/02
Filed: 1977-05-13
Abstract: 1535491 Gear cutting; adjustable stops HURTH VERWALTUNGS GmbH 13 May 1977 [20 Aug 1976 18 Jan 1977 27 Jan 1977] 20177/77 Headings B3B and B3K In a gear cutting machine having a hob 2 for cutting a workpiece 1 in the in-feed movement of a tool slide 11 is controlled by a stop arrangement which comprises a support 18 mounted to a fixed frame part of the machine tool, a first trip slide 21 adjustable along a bar 19 in a coarse setting by a screw and nut device 23, 24, 25, a second trip slide 22 adjustable relative to the first slide 21 in a fine setting by a micrometer device 26, the second trip slide 22 including a stop face 33 which limits the stop position of the slide, the tool slide carrying with it a multi-switch sensing device 30 and an inductive pick-up 32 which co-operate with the trip slides 21, 22 and stop face 33 to control and position the tool slide 11. Trip clogs 27, 28, 29 carried by the trip slides are set to change a fast traverse of an electrohydraulic drive of the tool slide 11 to a slow cutting feed, to set depth of tooth feed, and to provide a safety override. When an element 32 of the pick-up 31 engages the final stop face 33 a signal is generated to a control programme. When batch producing gears of different diameter the coarse setting trip slide 21 can be automatically re-set to an alternative position by a further adjusting means 38-43. An arrangement in which a tool form is modified by a copying programme and template is described (Fig. 6, not shown).
Patent GB-724517-A (GB)
Title: Improvements in or relating to typographical slug casting machines
IPC: B41B11/38
Filed: 1951-08-28
Abstract: 724,517. Type-bar-making machines. MERGENTHALER LINOTYPE CO. Aug. 28,1951 [Sept. 2, 1950], No. 20255/51. Class 100 (3). Clamping matrices.-A typographical linecasting machine includes a pair of line-clamping jaws movable one towards the other for quadding or centring and operated by a vertical rod twice during a machine cycle, first to effect a quadding or centring movement and subsequently to apply a line-squeeze pressure to the jaw or jaws, and the quadding or centring and line-squeeze operations are effected through a rack-and-pawl mechanism which is associated with the vertical rod and is controlled by the justification mechanism. The jaw-operating rod 7, Figs. 1 and 2, is provided with rack teeth 20 adapted to be engaged by pawls 29, 30, 31. The justification lever 21 rises twice during each machine cycle, and associated with it is a member 25. When the member 25 rises, it, together with a spring 28, causes levers 26, 27 to rise. The lever 27 thereby raises the pawl 29, which engages the rack 20 as soon as a raised portion 29d on the pawl passes above a lip 32 or the casting 18, so as to cause the quadding or centring movement of the jaws. During the latter part of the rise of the lever 21, the lever 26 raises the pawls 30, 31 to apply line squeeze pressure to the jaws. The pawls 30, 31 are staggered with respect to the teeth 20, to ensure that one of them will engage the teeth without wasting much of the movement of the lever 21. The pawl 31 is seated in a hollow central portion of the pawl 30 and is keyed to a shaft 33 mounted between two spaced arms of the lever 27, which is pivoted to the casing 18 at 27a. The pawl 30 is mounted freely on the shaft 33. Spurs 34, one on the shaft 33 and one on the pawl 30, are provided with screws 34b resting on ledges of the casting, to hold the pawls 30, 31 out of engagement with the rack 20 until they begin to rise. On the second rise of the lever 21, further pressure is applied to the jaws by means of the pawls 30, 31. The squeeze pressure is applied in effect in unison by the spring 28 and the justification spring, which raises the justification lever 21, in unison. On the rising of the first elevator 2, a cam 44 causes the rod 7 to be lowered by means of a lever 40. The movements of the rod are controlled by a dash pot 43. The rod 7 is rotated to set the machine for quadding, centring or normal operation by rotating a handle 56 having a pointer co-operating with a dial 60. The handle 56 is normally movable only between positions for normal operation and right-hand quadding and has a slidable stop which can be released by the thumb to allow the use of the other two positions. Specifications 433,872, 540,553, 671,839 and 724,650 are referred to.
Patent GB-185921-A (GB)
Title: Method of and apparatus for drawing sheet glass
IPC: C03B15/04
Filed: 1921-07-28
Abstract: 185,921. Jackson, W. J. Mellersh-, (Libbey Owens Sheet Glass Co.). July 28, 1921. Drawing.-Relates to apparatus of the type described in Specifications 15134/15 and 114,977, for drawing glass in flat sheets, and consists in chilling those portions of the surface of the molten metal from which the edges of the sheet are drawn and simultaneously forcing those chilled portions to flow upwardly into the sheet. In the device shown in sectional elevation in Fig. 1, the metal near the edges of the sheet, partly cooled by proximity to the sides of the tank, is further chilled by contact with teeth or pickers 12, projecting from waterccoled hubs, which dig into the surface portions of the chilled metal. The rotation of the hubs feeds the chilled metal towards and into the body of the sheet 7 as it is drawn upwards. In another construction, shown in Fig. 6, two water-cooled pickers 16 are moved in a vertical plane, their points moving in the paths shown in dotted lines. In a modification, L-shaped pickers are arranged horizontally, and the points follow elliptical paths which dip into the metal at the lower parts of their orbits and carry it inwardly toward the sheet.
Patent GB-222616-A (GB)
Title: Improvements in or relating to multiplex telegraph systems
IPC: H04L5/04
Filed: 1923-08-10
Abstract: 222,616. Automatic Telephone Manufacturing Co., Ltd., and Harrison, H. H. Aug. 10, 1923. Multiplex telegraphs; quadruplex teleyraphs; distributor systems.-In a multiplex system using an equal letter code, such as the Baudot. two sets of signals are sent simultaneously over each channel, the first set by currents of opposite polarity, and the second set by currents of modified strength, and the controlling arrangement is such that the reversal of polarity and the modification of strength can only be effected simultaneously. Fig. 2 shows an arrangement for operating over a channel between transmitters TR<1>, TR<2> at station A and the corresponding type-printing receivers PMG<1> and PMG<2> at station B. The closing of a contact of the transmitter TR<1> enables the distributor brush to complete a circuit through an electromagnet R<1> thereby attracting an armature r<1> to connect positive battery BR to line L in place of negative battery BR<1>. The closing of a contact of the transmitter TR<2> enables the distributor brush to complete a circuit through an electromagnet R<2> thereby attracting an armature r<2> to short-circuit a series resistance SD and to disconnect a leak resistance LR from the line, thus increasing the strength of the currents sent to line. At station B a non- polarized marginal relay NPR and a polarized relay PR are connected to the line in series and control the receivers PMG<2> and PMG<1> respectively. The system may be made quadruplex on each channel. In a modified arrangement one only of the relays NPR, PR controls a local receiver while the other serves to retransmit the signals over a second line. Specification 221,556 is referred to.
Patent GB-794356-A (GB)
Title: Improvements in or relating to electron microscopes
IPC: H01J37/20
Filed: 1955-07-14
Abstract: 794,356. Electron microscopes. SIEMENSHALSKE AKT.-GES. July 14, 1955 [July 14, 1954], No. 20419/55. Class 39(1). In an electron microscope in which the object is housed within a metal chamber 3, 4 which is supported by a mounting or object cartridge 1, the metal chamber is heat-insulated from its mounting by a cylinder 2 of low heat conductivity, but is heat-conductively connected to a deep-freeze device capable of reducing its temperature to -80‹C or less, in order, it is stated, to reduce contamination of the object. The connection to the cooling medium e.g. liquid air, is made by a rod 8 which is resiliently pressed against the chamber walls so that movement of the object table is not impeded. A thermo-couple is formed by a block of constanton 9 in combination with the part 3. An external connection is made by the conductor 10 within the cooling rod. The thermoelectric voltage may be applied to an automatic temperature control system to maintain the temperature constant. The walls of the chamber 3, 4 include small aperture diaphragms 6, 7 on either side of the object diaphragm 5. Part 4 of the chamber is a screw cap.
Patent GB-412426-A (GB)
Title: Improvements relating to apparatus for periodically recording measured magnitudes
IPC: G01R11/60
Filed: 1933-07-20
Abstract: 412,426. Counting-apparatus; recording-apparatus. LANDIS & GYR AKT.-GES., 1, Hofstrasse, Zug, Switzerland. July 20, 1933, No. 20479. Convention date, Sept. 1, 1932. [Classes 106 (i) and 106 (iv).] In apparatus for recording periodically the total of movements (e.g., the revolutions of an electricity meter) which are transmitted to the apparatus in the form of mechanical impulses, the movements are passed on to the recording means by an auxiliary source of power released by the impulses and braked during the actual recording operation, impulses occurring during such an operation being stored for subsequent transmission to the recorder. An electricity meter 1 drives a notched cylinder 2 to release at every half-revolution an arm 3 which is then turned through 180‹ by a spring 7. A sun wheel 8 on the shaft of the arm 3 rolls a planet wheel 9 on the (at this moment) stationary sun wheel 10, a pawl 19 on the shaft 17 of the planet wheel thus releasing a ratchet wheel 11, Fig. 2, urged to rotate by an auxiliary source of power in the form of a motor 16. The wheel 11 rotates one step and drives a counter 13 through gearing 12, stresses the spring 7 and through the sun wheel 10 turns back the planet wheel 9 to re-engage the pawl 19 at the end of the step. At certain intervals, e.g., every fifteen minutes, a record is taken from the counter by means not shown. When this is to occur a lever 22 slips off the point of a time-driven cam 20 and releases an arm 24 on a shaft 27 which is thus driven through one revolution by means not described. The shaft 27 carries a cam 25 which, as soon as the shaft commences to rotate, moves a pawl 35 into engagement with the ratchet 11 and locks the counter 13. Any movements of the arm 3 which occur while the shaft 27 is in motion, i.e., during the recording operation, cause the pawl 19 to be moved step by step away from the ratchet 11, and are thus stored up. When the shaft 27 returns to its normal position, the pawl 35 releases the ratchet 11 which is then driven by the motor 16 to transmit the stored movements to the counter 13 until the pawl 19 is again brought into engagement with the ratchet 11. Instead of the notched cylinder 2, the arm 3 may be controlled by an escapement lever. Specification 371,256 is referred to.
Patent GB-833239-A (GB)
Title: Improvements in coated electrodes for electric arc welding
IPC: B23K35/365
Filed: 1956-07-02
Abstract: An arc-welding electrode has an iron or steel core and a slag-forming coating, the outer diameter of which equals the core diameter multiplied by a factor of 1.5 to 2 and the constituents of which include calcium carbonate, fluorspar, and 2-15% by weight of the non-metallic part of the coating of each of strontium carbonate and zirconium oxide (free or combined), preferably in the form of zircon sand.  The coating may also contain barium carbonate, magnesium carbonate, cryolite, manganese dioxide, hausmannite, titanium dioxide, iron and ferro-alloys such as ferromanganese and ferrosilicon, together with an alkali metal, preferably potassium, silicate as binder.  A specific coating composition is disclosed which is extruded on to mild steel core wires.