baber/WOPTO huggingface dataset:
Patent GB-617772-A (GB)
Title: Improvements relating to cultivators employed in agriculture
IPC: B62D51/00
Filed: 1946-04-17
Abstract: 617,772. Agricultural implements. HOWIE, J. B. April 17, 1946, No. 5178/48. Divided out of 617,345. [Class 6 (i)] In hoeing and like machines the tools are attached to a frame consisting of pairs of upper and lower parallel bars 8, 9 mounted on spindles 8a, 9a, traversing the plates 5a forming the sides of the main frame. The four bars 8, 9 are pivoted at front and rear to plates 6, 7 which with the fixed points 8a. 9a, constitute a parallel linkage maintaining constant relative to the ground the angle of the tools 29 during adjustment. A steering handle is mounted on the plate 7 and is associated with a lever 27b which in conjunction with a quadrant 13 permits adjustment of the tool frame and its retention as desired. The plate 6 to which the tools 29 are attached is provided with brackets 6a, 6b. The brackets 6b are pivoted directly to the lower bars 9 ; the brackets 6a to the upper bars 8 through links 18, 18a pivoted together and variable in position by a rod 22 and nut 24. By this means the angle of the tools is adjusted. The disposition of the motor and driving gear is described in Specification 617,345.
Patent GB-573571-A (GB)
Title: Improvements in or relating to the mounting of electrodes in electric discharge tubes
IPC: H01J19/42
Filed: 1942-04-18
Abstract: 573,571. Discharge apparatus. FERRANTI, Ltd., CHILCOT, A. L., and MILLER, J. L. April 18, 1942, No. 5202. [Class 39 (i)] In the manufacture of discharge tubes, the spacing of two electrodes, one of which is ring- shaped and surrounds a circular raised portion on the other, is effected, during their mounting in the envelope, by a tubular jig which fits over the raised portion of the one electrode and has a shouldered external surface on which the ring electrode is positioned. The invention may be applied to the manufacture of valves having two, three or more electrodes, and gas-filled or evacuated, but is described as applied to a triode, Fig. 3, in which the cathode a is a nickel-iron cup with a raised centre portion b and the ring-shaped electrode e is the control grid. The cathode is carried on three wires, one of which c<1> is extended to form the external lead, sealed through the closed end of a tube h forming part of the envelope. The ring is carried by a lead f sealed through a hole in the side of the tube. During sealing, the electrodes are spaced relatively to each other by the jig i, which is a tubular member fitting closely in the tube h and over the part b of the cathode ; the ring e lies against a shoulder j on the external surface of the jig. The tube is closed by a header carrying the anode and an exhaust tube, and may be exhausted and activated by the means described in Specification 573,570. The cathode may be of the cold activated or thermionic type.
Patent GB-899315-A (GB)
Title: Improvements in or relating to mattress covers
Inventor: PRESTON JAMES
IPC: A47C21/06
Filed: 1960-02-15
Abstract: 899,315. Mattress covers. CIRCLE PRODUCTS Ltd. Feb. 2, 1961 [Feb. 15, 1960], No. 5299/60. Class 52(4) A mattress cover comprises two sheets 1 of plastic seam-welded at their edges and the upper sheet having a hole 2 filled by a panel 3 of air pervious material secured to sheets 1 by high frequency heat bonding or by stitching. The lower sheet has an aperture 4 to allow access of air to the mattress filling.
Patent GB-1531370-A (GB)
Title: Polymerization catalyst and method
IPC: C08F10/00
Filed: 1977-02-09
Abstract: 1531370 Olefine polymerization using supported (chromium) catalysts AMERICAN CAN CO and SKELLY OIL CO [trading as CHEMPLEX CO] 9 Feb 1977 [7 April 1976] 5331/77 Heading C3P [Also in Division B1] Polymers of 1-olefins of 2-8 carbon atoms and copolymers thereof with 1-olefins of 2-20 carbon atoms are prepared using a catalyst with a zirconium-modified inorganic support (silica, alumina, &c.) treated with a chromium chelate of a beta-dicarbonyl compound and activated by heating to 800-2000 F. in a non- oxidizing atmosphere (see Division B1). The polymerization of ethylene using a catalyst prepared from chromium acetylacetonate and a silica support modified with ZrCl 4  or ZnO(NO 3 ) 2 .
Patent GB-636378-A (GB)
Title: Hair curlers
IPC: A45D2/14
Filed: 1948-02-23
Abstract: 636,378. Hair curlers. GOODWIN, P. J. Feb. 23, 1948, No. 5366. Convention date, Jan. 21, 1941. [Class 131] A hair curler comprises a hollow cylindrical body 1 which has, at one end, a relatively narrower cylindrical extension 3 the extremities of the curler and of the extension being slotted to provide longitudinally extending comb teeth 5, 6. In use a tress of dampened hair is separated by drawing the end of the curler, which will give the required size of curl, through the hair from the scalp to near the tip of the tress. The curler is then rotated to coil the tress, removed, and the curl pinned and allowed to dry.
Patent GB-685708-A (GB)
Title: Improvements in or relating to fluid-pressure actuated automatic controllers
IPC: G05B11/50
Filed: 1950-03-03
Abstract: 685,708. Fluid-pressure servomotor-control systems. AIKMAN, A. R., RUTHERFORD, C. I., and IMPERIAL CHEMICAL INDUSTRIES, Ltd. June 1, 1951 [March 3, 1950], No. 5422/50. Class 135. In a control system of the kind wherein pressure air is supplied past a restriction 2 to a nozzle 3 and to a conduit 5 leading to a diaphragm or other actuator (not shown), the nozzle being obturated by a baffle 4 under the control of the variable that is being stabilised, and wherein derivative, and integral control is obtained by means of a further conduit 6 which leads from between the restriction 2 and nozzle 3 and is connected in parallel to opposed bellows 8, 9 operatively coupled to the baffle, there being a "derivative" restrictor 7 in the conduit 6 and an "integral" restrictor 11 in the conduit between the two bellows, the volumetric capacity of that part of the assembly connected between the restrictors 7, 11 is larger than the volumetric capacity of that part of the assembly connected to the other side of the integral restrictor. The ratio of volumes is, for practical purposes, greater than 3 : 1 and is, preferably, 10 : 1, and to obtain an adequate ratio, a capacity vessel, 12 is connected between the restrictors 7, 11. Bellows 8, 9 act on a member 15 of a lever-and-linkage system connected to and carrying the baffle 4. The member 15 is loaded by opposed springs 13, 14.
Patent GB-639913-A (GB)
Title: Furnace for heating flowing fluids
IPC: C10G9/20
Filed: 1948-02-24
Abstract: A furnace for heating flowing liquids, e.g. a pipe still comprises a vertical combustion chamber 1 surrounded by a plurality of flues 3 which communicate at both ends with said chamber, an annular duct 9 connected to <PICT:0639913/III/1> each flue 3 and provided with at least three symmetrically disposed offtakes for the removal of excess heating gases, a burner or burners 6, a fan 7, and a fluid pipe 10 in each flue 3 supplied by pipes 11 and discharged into an annular pipe 13.  The invention is said to be applied to cracking hydrocarbon oils and to the conversion of dichlorethane into vinyl chloride and hydrochloric acid gas at 500 DEG  C.
Patent GB-306546-A (GB)
Title: Improvements in or relating to indoor games apparatus
IPC: A63F9/14
Filed: 1929-02-20
Abstract: 306,546. Bonnat, L. M., and Pradout, E. J. Feb. 23, 1928, [Convention date], Race games, mechanical. - In a games apparatus in which objects are moved on a non- magnetic surface by means of movable magnets, each object consists of a part representing a figure and accommodating a ball or roller of magnetic material arranged to roll on the surface, the part nesting on or being suspended from the ball or roller so as to assume any desired position relative thereto. The track 1, Fig. 1, is supported by an insulated casing 2 and an insulated disc 3 and upon it are placed the magnetic balls or rollers 4 surrounded by imitation figures of motor cars, horses or other objects. Beneath the track are situated a number of electromagnets 8 connected by rods 12 to independent sleeves 13 on a central spindle 9. At one end of each sleeve is a worm wheel 14 driven by a worm carried by a shaft 16 with a handle extending outside the casing. The handles may be connected to the worm shafts 16 by flexible shafts. The current may be alternating, and one end of the supply is connected to one end of each of the magnet windings via the central spindle 9. The other ends of the windings are connected to the track 1 by sliding contacts, and the track itself is connected to the source of current supply. The magnets may be arranged in series by dividing the track into a number of separate insulated portions and arranging for the current to pass from one portion through a magnet to the next portion, Fig. 10. If the track is not plane, the magnets may be constrained to keep in contact with it either by making the rods 12 sufficiently resilient or by the use of cams. The track may also be arranged vertically with aeroplane figures surrounding the movable balls. The Specification as open to inspection under Sect. 91 (3) (a) comprises also a modification, Fig. 8, (Cancelled), in which the track is situated at the bottom of a water tank and the magnets are actuated by nuts 19 travelling on screws 20 driven by handles 22 through flexible shafts 21. To give an intermittent motion to the moving objects wheels 26, Fig. 9, (Cancelled), on the ends of the flexible shafts have projections which engage with toothed wheels 27 on the screws 20. The objects may be moved from one end of the tank to the other and back again by making the screws 20 with oppositely-directed threads connected at their ends. This subject-matter does not appear in the Specification as accepted.
Patent GB-917671-A (GB)
Title: Improvements in and relating to tabulated data reading systems
Inventor: HALEY ALASTAIR COLIN DOBSON
Filed: 1958-02-21
Abstract: 917,671. Sensing record cards. ENGLISH ELECTRIC CO. Ltd. Feb. 20, 1959 [Feb. 21, 1958], No. 5678/58. Class 106 (1).  Record cards 10, Figs. 2a, 2b, are sensed in motion by sets of brushes 12a, 12b brushes in two sets being paired and co-operating with two sections of a contact roller which are insulated from each other, the two sections being operated at different voltages so as to distinguish the signals from one section of the card from those of the other. Considering brush set 12a only, each brush is connected to the grid of a double triode 13 acting as a gate. Timed pulses are applied at terminal 16 to each triode 13 in turn and, where the corresponding brush registers with a hole in the card, a pulse appears on the anode of the left-hand triode. This draws current through the load 15 so that the data recorded in each row of the card appears serially across the load and passes to a computer. The gate opens only when the brush connects to a voltage of - 260 volts so that signals from the paired brush in the other set 12b are ignored. In the middle of the row sensing, a switch 23 operates to apply this voltage to the right-hand section of the cylinder and to apply a lower voltage to the left-hand section. Brushes 12b which are also connected to the grids of the triodes, then become operative to control the gates 13 and the data sensed in the right-hand section of the card is then applied to the computer by a further train of pulses applied in succession to respective terminals 16. The switch 23 may be cam-operated by the record feeding mechanism or by a timing unit 26 or, if it is an electronic switch, it may be operated by the computer.
Patent GB-131045-A (GB)
Title: Improvements in Hydro-aeroplane Flying Machines.
Inventor: SHORT HUGH OSWALD
IPC: B64C35/00
Filed: 1918-04-03
Abstract: 131,045. Short, H. O. April 3, 1918. Aeroplanes; cars; planes, arrangement of; propelling.-Boats 1, 2 carrying the pilots &c. are rigidly fixed immediately below the plane 3, the boats being equidistant from the longitudinal axis. Tractors 6, 7 and a propeller 9 are driven by engines 4, 5, 8 located between the planes. The tail-plane and rudder may be carried either by a frame fixed to the wing structure and extending above and beyond the boats, or by the rear ends of the boats. Two, three, or more main planes may be used. Specification 3203/15 is mentioned.
Patent GB-538999-A (GB)
Title: Improved apparatus for distilling liquids
IPC: C02F1/04
Filed: 1940-03-30
Abstract: 538,999. Distilling water; separate heater and evaporator apparatus. AITON & CO., Ltd., AITON, Sir J. A. March 30, 1940, No. 5763. [Class 32] In flash distillation apparatus for, e.g. the production of distilled water, comprising a preheater-condenser b, a tubular heater a, and a flash chamber c to which the heated liquid is admitted with a whirling motion, the chamber c is provided with a sump f to which unvaporized liquid from the flash chamber is passed through nozzles c<SP>4</SP>. In operation sea water is fed by a pipe d through the tubes of condenser d and thence to the sump f where it mixes with the residual unevaporated water. The mixture is fed by pump g through the tubes a' of the heater a to an annular chamber c' having inlet nozzles c<SP>2</SP> directing the sprayed liquid tangentially on to the sides of the flash chamber c. Vapours formed are removed through a central chamber c' to the condenser b, condensate being recovered through pipe l. The heater a may be heated by exhaust steam or by the vapours formed in the process compressed by live steam injected at k. Means are described for the automatic control of the plant by (a) placing a thermostatically controlled valve in the outlet pipe for the water passing from the preheater b to the sump f; (b) maintaining a constant head of water on the suction side of the circulating pump g by controlling the blow down valve by a linkage actuated by a float controlled by the level of the water in the sump. The temperature and density of the water may thus be controlled within limits 200-203‹F. and <SP>2</SP>/ 32 nds respectively.
Patent GB-487968-A (GB)
Title: Improvements in brakes
IPC: F16D65/56
Filed: 1937-02-26
Abstract: 487,968. Internal expanding brakes. HYDRAULIC BRAKE CO. Feb. 26, 1937, No. 5835. Convention date, Feb. 27, 1936. [Class 103 (i)] In an internal expanding brake a stop 56 for the leading shoe 14 in the normal direction of drum rotation is automatically adjusted by the following shoe 16. The stop 56 is mounted on a lever 54, the pivot of which is frictionally gripped to the brake back plate. A link 68 connects this lever to the shoe 16 by means of a lost motion connection 88, which when taken up during brake application after the brake lining has worn, moves lever 54 and stop 56 to a new position. The bar 68 has thermostatic properties so that it expands with the drum with heat and maintains the shoes in normal adjustment. The link 68 passes through an oversize hole in the lever 54 which it engages by means of a spring 76. The link 68 is in two parts connected by a right- and left-hand screwed adjustment 92.
Patent GB-308206-A (GB)
Title: Improvements relating to grinding or abrading machines
IPC: B24B21/18
Filed: 1929-02-22
Abstract: 308,206. H³ser, J. March 19, 1928, [Convention date]. Band apparatus; feed devices.-In a grinding machine having an abrasive band a passing round rollers b, the work is fed by means of rolls c which may be adjustably inclined to the band to varv the rate of feed and which are mounted in a frame d pivoted at u to a lever g which is itself pivoted to a shaft f and is fitted with a countershaft h. The feed rolls are connected by a belt p and one roll is driven from the shaft f through belt gearing m and bevel gearing n, o. To adjust the inclination of the rolls, the frame d is swung about the axis of the shaft r and is locked by bolts t engaging in arcuate slots. The rolls may be pressed down to feed and to rotate the work by means of a pedal.
Patent GB-1535965-A (GB)
Title: Electrostatic colour copying apparatus
IPC: G03G15/01
Filed: 1976-02-16
Abstract: 1535965 Electrostatic colour copying AGFA GEVAERT AG 16 Feb 1976 [14 Feb 1975] 05958/76 Addition to 1467647 Heading G2A Complementary colour separation images of an original on a transparent platen 3 are projected in line by line superimposed manner on to a photoconductive drum 24. As shown in Fig. 1, a carriage 4 having coloured fluorescent tubes 5/6, 7/8 and 9/10, corresponding slits 11c, b and a and a common scanning mirror 12 moves below platen 3 at twice the speed of a common angular compensating mirror 14/15, slit images being projected through a common objective lens 13 and via common mirror 17 and respective mirror pairs 18/19, 21/20 and 23/22 to drum 24 which has respective charging devices 25, 26 and 27 and liquid developer applicator and removal devices 28, 29 and 30, and the resulting multi-colour developed image being transferred to copy paper 33 with the aid of charging devices 40 and 41. As shown in Fig. 2, the carriage has individual scanning mirrors (42, 44 and 45), compensating mirrors (49, 48 and 47) and objective lenses (50, 51 and 52).
Patent GB-921964-A (GB)
Title: Process for the manufacture of self-bonding organopolysiloxane elastomers
IPC: C09J7/38
Filed: 1960-02-19
Abstract: A self-bonding siloxane elastomer is made by condensing a substantially diorganopolysiloxane in the presence of (a) 0,001 to 0,1% (by wt.) of boric acid or an alkyl or phenyl ester thereof and (b) a conventional siloxane condensation or polymerization catalyst, and curing the resulting product in the cold or at an elevated temperature.  Prior to curing with known catalysts, the product may be compounded with fillers, e.g. silica (fume, aerogel or xerogel), crushed quartz and diatomaceous earth.  The starting siloxanes may be linear or cyclic.  In one embodiment (a) and (b) are provided by a potassium borate.  In typical examples, (1) a linear dimethylpolysiloxane containing terminal SiOH groups was mixed with boric acid (saturated aqueous solution) and trimeric phosphorus-nitrile chloride (in methylene chloride) and condensed at 120 DEG C. to a highly viscous polymer which was then mixed with fume silica and dichlorobenzoyl peroxide and cured at 250 DEG C. to an elastomer; (3) a linear methylvinylsioloxane copolymer was mixed with boric acid triethyl ester and FeCl3.6H2O and heated at 110 DEG C. to yield a viscous polymer which was then mixed with quartz powder, tetraethylsilicate and dibutyl tin dilaurate and cured at room temperature to give a self-bonding elastomer.  Uses: for electrical insulation; for bonding siloxane elastomers, particularly in repairing siloxane insulation on cables; and for lining dentures made of acrylate resins.  Specifications 765,744 and 851,016 are referred to.
Patent GB-1085860-A (GB)
Title: Method for the formation of metallic images on non-metallic material
IPC: B44C1/04
Filed: 1966-02-11
Abstract: 1,085,860. Stericilling; etching. FUJI SHASHIN FILM KABUSHIKI KAISHA. Feb. 11, 1966 [Feb. 18, 1965], No. 6072/66. Headings B6C and B6J. A metallic image is formed on the surface of a non-metallic material such as plastic films, paper, leather, glass or ceramic by (1) uniformly activating, e.g. roughening, the surface by etching with stannous chloride, palladium chloride, auric chloride, irridium chloride or platinum chloride acidified with hydrochloric acid, (2) selectively de-activating part of the surface by applying a powder image electrophotographically, or an oil image thermographically, or by direct drawing with ink, and (3) immersing the surface in a chemical plating liquid including ions of copper, nickel or silver, and a reducing agent, examples of plating liquids being given.
Patent GB-1219212-A (GB)
Title: New water-insoluble disazo compounds and process for their manufacture
IPC: C09B33/147
Filed: 1969-02-05
Abstract: 1,219,212. Disazo dyestuffs. CIBA Ltd. 5 Feb., 1969 [6 Feb., 1968], No. 6166/69. Heading C4P. The invention comprises water-insoluble disazo dyestuffs of the general formula wherein R 1  is an aryl residue containing at least one sulphonic acid ester group, R 2  is a naphthalene residue having the azo, -OH and - CONH- groups in the 1-, 2- and 3-positions respectively, and R 3  is an arylene radical. Preferred dyestuffs have the general formula wherein R is alkyl, cycloalkyl, aralkyl, aryl or a heterocyclic residue, X is H, halogen, alkyl, alkoxy, or phenoxy, Z is H, halogen, or alkoxy and R 3  is an arylene residue, e.g. 1,4-phenylene optionally substituted by halogen, trifluoromethyl, alkyl or alkoxy. They are prepared by (a) condensing a carboxylic acid halide of the formula having the azo, -OH and -CONH- groups in the 1-, 2- and 3-positions respectively with an arylene diamine in the molar ratio of 2:1 or (b) coupling a diazo or diazoamino compound of an arylamine with a 2,3-hydroxynaphthoic acid arylide of the formula in the molar ratio of 2:1. The red, scarlet and ruby water-insoluble dyestuffs obtained are used to colour viscose, cellulose ethers and esters, polyamides, polyurethanes, polyesters, nitrocellulose, natural and synthetic resins, polyolefins, P.V.C., polyacrylonitrile rubber, casein, silicones and silicone resins, pencils, cosmetics and laminates.
Patent GB-1534401-A (GB)
Title: Measuring the transfer function
IPC: G06F7/70
Filed: 1976-02-17
Abstract: 1534401 Evaluating transfer functions HEWLETT-PACKARD CO 17 Feb 1976 [6 March 1975] 6178/76 Heading G1U A method of evaluating the linear part (i.e. that part not involving any transient responses) of the transfer function of a device under test (DUT) comprises the following steps:- (a) a pseudo-random signal of duration T is repeatedly applied to the DUT until the spectrum of the output signal from the DUT, measured over a record length of T, has become sufficiently stable, (b) when the output spectrum has become stable, both the input and the output spectrum are measured, over a record of length T, (c) further independent pairs of input and output spectra are measured by repeating steps (a) and (b) using a different pseudo-random signal of length T for each pair of spectra, (d) all the measured input spectra and all the output spectra resulting from (c) are averaged to give an average input spectrum and an average output spectrum, from which an estimate of the required transfer function is evaluated, and (e) the whole process is continued until the evaluated estimate is sufficiently stable. The above method includes three specific features. Firstly, by measuring the input and output spectra using a record having the same length (namely T) as the basic period of the input signals, leakage in the spectra is substantially eliminated (since the frequency window, namely (sin#fT)/#f, has zeros at the points f=k/T, k = 1, 2, 3, ..., which are the points at which the spectral lines resulting from a basic period of T occur); secondly, by waiting until each spectrum is stable before measuring it transients are eliminated, and thirdly, by averaging successive spectra, each of which is obtained using a different pseudo-random signal, the effect of non- linearities in the DUT is reduced. A block diagram showing how a pseudo-random signal of length T can be stored and repeatedly applied to a DUT is described.
Patent GB-1243422-A (GB)
Title: Improvements in or related to ventilated footwear
Inventor: STOCK WILLIAM TORKINGTON
IPC: A43B7/06
Filed: 1969-02-03
Abstract: 1,243,422. Ventilated shoe. W. T. STOCK. 18 Nov., 1969 [3 Feb., 1969], No. 6199/69. Heading A3B. A ventilated shoe has a channel or duct situated between the outersole and insole, air holes b in the insole a which communicate with the duct and an outlet d at the heel end of the shoe. A gauze mesh c above the duct prevents the entry of fluff from socks. A valve e, consisting of a ball, e.g. of cork or plastics material, in a well prevents the entry of water into the shoe. If water should enter through outlet d into the well the ball rises to block the duct. The water is ejected by the action of walking when air is expelled through the outlet d.