baber/WOPTO huggingface dataset:
Patent GB-1443614-A (GB)
Title: Automatic anti-skid braking system
IPC: B60T8/1763
Filed: 1974-07-16
Abstract: 1443614 Aritiskid braking systems NISSAN MOTOR CO Ltd 16 July 1974 [16 July 1973 13 March 1974] 31405/74 Heading F2F An antiskid braking system comprising a wheel speed sensor, means producing a wheel acceleration signal from the wheel speed signal, means for producing an approximate vehicle speed signal, a braking force release unit responsive to the acceleration and vehicle speed signals to produce a release signal when the acceleration and slip exceed threshold values, and a re-application unit for producing a reapplication signal when the wheel acceleration drops below a predetermined threshold value, the re-application unit including a first comparator circuit responsive to the wheel acceleration signal for producing a signal when the wheel acceleration exceeds a predetermined value and unbraked condition sensing means responsive to the wheel acceleration signal for sensing an unbraked wheel condition when re-acceleration is below a predetermined threshold value and producing a second acceleration output signal and means responsive to at least one of the first and second acceleration output signals for producing the brake re-application signal. A wheel speed sensor 1 feeds a signal to an acceleration detector 2, an approximated vehicle speed detector 3 and to a slipping rate sensor 42 forming part of a braking release unit 4 which also includes a vehicle deceleration detector 41 and a brake release signal generator 43. The signal from the wheel acceleration detector 2 is also fed to a brake re-application unit 5 which includes a comparator 51, an unbraked condition sensor 53 and a brake reapplication signal generator 52 the outputs of units 4 and 5 being fed to a unit 6 controlling an hydraulic pressure modulator 7, the unit 6 and 7 comprising as shown in Fig. 2 a flip-flop circuit 61, operating signal generator circuit 62 and solenoid release valves. The unbraked condition sensor 53 comprises a comparator 53a a timer circuit T and an AND circuit 53b as shown in Fig. 3.
Patent GB-1119404-A (GB)
Title: New water-soluble reactive azo dyestuffs
Inventor: BARBEN IAN KNOWLES
IPC: C09B62/44
Filed: 1965-07-23
Abstract: The invention comprises water-soluble azo dyestuffs containing at least one group of the formula <FORM:1119404/C4-C5/1> wherein R1 and R2 are each independently H or C1 to C4 alkyl, X is Cl, Br or SO3H; Q is N, C-Cl or C-CN; Z is an arylene radical whch may be substituted, W is a carbamyl, -SO2-, -O- or -S- linkage, and Y is -CH2CHOHCH2Cl, -CH2CHOHCH2Br or -CH2CHOHCH2OSO3H group.  They may be obtained by (1) reacting an azo compound containing either a group of the formula <FORM:1119404/C4-C5/2> or a group of the formula -NHR1 with respectively an amine of the formula NHR2-Z-W-Y, or a compound or mixture of compounds of the formula <FORM:1119404/C4-C5/3> (2) diazotizing a diazotizable aromatic amine containing a group of the formula <FORM:1119404/C4-C5/4> wherein X is Cl or Br, and coupling with a coupling component. The metallized dyes may be obtained by metallizing an unmetallized dye containing a group of Formula I or by introducing the metal during the course of the preparation of the dye.  Examples are given for the production of the dyes.  They are useful for dyeing or printing a variety of textile materials.
Patent GB-804059-A (GB)
Title: Improvements in the production of alkyl alkoxy aluminium halides, alkyl aryloxy aluminium halides and alkyl aluminium dihalides
IPC: C07F5/06
Filed: 1956-10-17
Abstract: Compounds of formula R-Al-(R1)-X, where R is alkyl, X is halogen and R1 is alkoxy, aryloxy or another X are prepared by reacting aluminium or magnesium with an aluminium halide in the presence of a dialkyl or alkylaryl ether.  X is preferably chlorine, bromine or iodine, and the preferred aluminium halides are aluminium ethers with up to 4 carbon atoms in the ethers with up to 4 carbon atoms in the alkyl groups are preferred, such as dimethyl ether, methyl ethyl ether, methyl propyl ether, diethyl ether, di-n-propyl ether and di-n ibutyl ether: alkyl aryl ethers specified include anisol, -p-methyl-anisol, phenyl ethyl ether and halogenated ethers such as -p-chloranisol. The reaction may be carried out at temperatures between 100 DEG  and 220 DEG  C. in the presence of anhydrous organic solvents such as aromatic, aliphatic and cycloaliphatic hydrocarbons.  The process may be modified by starting with the etherates of the aluminium halides and reacting this in the presence of the same or different complexing ether with aluminium or magnesium.  Reacting the solid etherate with aluminium gives the alkyl aluminium dihalide.  In an example aluminium chloride, aluminium and anhydrous diethyl ether are reacted to give ethyl ethoxy aluminium chloride.  Other examples describe the preparation of propyl propoxy aluminium chloride, methyl propoxy aluminium chloride, ethyl ethoxy aluminium bromide, propyl ethoxy aluminium chloride, propyl methoxy aluminium chloride, methyl phenoxy aluminium chloride and (Example 8) methyl aluminium dichloride.
Patent GB-441308-A (GB)
Title: Electrically operated vacuum cleaners
IPC: A47L9/22
Filed: 1934-11-03
Abstract: 441,308. Securing impellers to shafts. SMITH, S. H., and SMITH, C. H., 96, Bath Street, Birmingham. Nov. 3, 1934, No. 31599. [Class 80 (ii)] [See also Group XXVI] Means for securing a centrifugal runner to its shaft comprise an impeller hub 17 which has a gap and tooth engagement with an impeller hub 10 and a similar engagement with a non- rotatable washer 21. Rotation of the washer is prevented by a D - shaped hole which engages a similar shaped screw shank on the shaft. The washer is secured by a spring washer 25 and nut 24.
Patent GB-1340218-A (GB)
Title: Pulverulent and slurry material measuring methods
IPC: B05B12/12
Filed: 1971-07-06
Abstract: 1340218 Measuring the characteristics of a coating or a surface BRITISH STEEL CORP 6 July 1971 [7 Aug 1970] 31699/71 Heading G1A [Also in Division G3] In an apparatus wherein pulverulent material (e.g. chromium powder) is distributed on a supporting surface (e.g. a steel strip) which has different reflection characteristics from the pulverulent material, a beam radiation is directed into the supporting surface with the pulverulent material and a detector receives the reflected light. The beam has an angle of impingement on the supporting surface within 60 degrees of the normal to the surface and rays reflected at an angle of less than 45 degrees from the direction of incident light are measured. The output of the detector may be used to control the thickness coating of the pulverulent material on the supporting surface. The invention makes use of a linear relationship between the coating weight, or the density per unit area, of the pulverulent material and the intensity of the reflected light, which exists between the two extremes (that is, the measurements due to no pulverized material at all on the steel strip and to the strip being opaque due to a complete coverage by the pulverized material). In one embodiment, Fig.1 a coil 14 of a steel strip is pulled over a coating drum 16 and passed through a measuring apparatus 34, a sintering furnace 28, and compaction rollers 30 on to a take up reel 32. The measuring apparatus includes a radiation source 36 and a detector 38 the detector's output being fed to a read out device and a control apparatus 42 which controls the line speed of the strip and the rate of powder deposition so as to control the line speed of the strip and the rate of powder deposition so as to control the coating weight, particle distribution and the like. In a further embodiment Fig.2 (not shown) a  bonding agent is directed from a tank on to both surfaces of the steel strip prior to both surfaces being coated with the pulverized material a measuring apparatus being placed adjacent each  surface so as to monitor the coating of the steel strip for control purposes. A further set of sources and detectors may be included to monitor a further coating of both sides of one strip. In a further embodiment a number of powder blowers are spaced laterally across the strip to coat the strip and a corresponding number of detectors and sources are placed above the surfaces to monitor and control the blowers. The description includes a discussion involving graphs on maximizing the efficiency of the invention and includes an electronic circuit for the detectors.
Patent GB-520859-A (GB)
Title: An improved process for thickening the electrolytes of galvanic elements and batteries
IPC: H01M6/22
Filed: 1938-11-02
Abstract: 520,859. Batteries. CHLORIDE ELECTRICAL STORAGE CO., Ltd. Nov. 2, 1938, No. 31703. Convention date, Jan. 14. [Class 53] Dextrinated starch or flour is used for thickening the electrolyte. Potato starch is preferably used.
Patent GB-905369-A (GB)
Title: A process for the production of 2-amino-oxazoles
IPC: C07D263/50
Filed: 1960-09-16
Abstract: 2-Amino-oxazoles of the general formula <FORM:0905369/IV (b)/1> and acid and basic salts thereof, wherein R is an alkyl, cycloalkyl, aralkyl or aryl radical, optionally bearing hydroxy or alkoxy substituents, R1 is a hydrogen atom or one of the radicals R and X is a hydrogen atom or a substituted or unsubstituted benzenesulphonyl radical, are prepared by reacting cyanamide or a mono- or di-alkali-metal or an alkaline earth metal salt of cyanamide in an alkaline, neutral or acid medium, or a cyanamide derivative in which one hydrogen atom is replaced by a benzenesulphonyl radical, in an acid medium, with an a -hydroxyketone R.CO.CHOH.R1 or R.CO.CH2OH, preferably in water, a water miscible solvent or a mixture of water and such a solvent at 35-80 DEG C. in a molar ratio of 1:1. Suitably, the a -hydroxyketone reactant may be prepared in situ by hydrolysing the corresponding a -chloroketone.  Specified products include 2-amino-, and 2-benzenesulphonylamino- (in which the benzene ring is p-substituted by an amino group or a group such as acetylamino which may be converted into an amino group) oxazoles substituted in the 5- or 4- and 5- positions by methyl, phenyl, benzyl and hydroxypropyl groups.  a -Hydroxyketones used as starting materials such as hexane -2:5-diol-3-one are made by hydrolysis of suitable acetylenic compounds, e.g. phenylethinyl carbinol, hexine-2:5-diol or propargyl alcohol, with sulphuric acid and a mercuric catalyst; and by hydrolysis of a -chloro-ketones.  1-Chloro-1:3-diphenyl-propanone is made by chlorinating dibenzyl ketone.
Patent GB-429332-A (GB)
Title: An apparatus for feeding fabric in a creped state to tentering machines
IPC: D06C7/02
Filed: 1934-11-08
Abstract: 429,332. Feeding webs. DECK, P., 101, Lutterbacherstrasse, Mulhouse, France. Nov. 8, 1934, No. 32072. [Class 100 (i)] [See also Group VIII] Fabric is fed in a slack state to the clip or pin chains of a tentering machine by pairs of endless bands i, k, Fig. 2, engaging the selvedges of the fabric and driven at a greater speed than that of the tenter chains. The upper band may be pressed lightly against the lower band by springs or by a weighted arm n. The speed of the bands may be adjusted so that the fabric may settle beneath the clip feelers in large or small waves and one pair of bands may be driven through a differential gearing by which the weft threads may be straightened. To subdivide the waves in the fabric into smaller waves, the clip feelers may be divided to produce gaps r, Fig. 9. The fabric passes to the bands from a feed roller o between adjustable tensioning rollers p, q. When feeding to pin chain tentering machines rotary brushes are provided to press the fabric on to the pins as it leaves the feeding bands.
Patent GB-811881-A (GB)
Title: Improvements in electrolyzing device
IPC: C25C7/02
Filed: 1956-10-22
Abstract: A pervious wall section for a vessel for use in electrolysis (see Group XXXVI) comprises two perforated plates welded together to leave a space between the plates, the perforations in one plate being out of register with those in the other.
Patent GB-268015-A (GB)
Title: Improvements in the method of and means for producing concrete blocks, slabs and monoliths
IPC: B28B7/16
Filed: 1925-12-21
Abstract: 268,015. Concrete, Ltd., Ambrose, J. G., and Mathews. C. B. Dec. 21, 1925. Moulds; slabs.-Cavitied concrete slabs &c. areformed by means of dish-shaped sheet-metal cores a, Fig. 5, having corner parts 2a, 3a of comparatively large curvature to facilitate withdrawal and to enable them to be produced by stamping. The moulds are formed of longitudinal bars c having furrows c' to produce on the slabs &c. spacing ribs f<1>. The bars c are assembled upon the floor with end bars d, one or more cores a being placed in each compartment to form corresponding cavities b in the slabs. After casting the concrete, the members c, d are withdrawn endwise and the stubs are turned over for withdrawal of the cores. Longitudinal reinforcing-rods k may be provided.
Patent GB-260934-A (GB)
Title: Improvements in or relating to multi-cylinder piston engines and pumps
IPC: F02B75/22
Filed: 1925-12-21
Abstract: 260,934. Ostberg, K. G. Nov. 4, 1925. [Convention date]. Void [Published under Sect. 91 of the Acts]. Addition to 259,897, [Class 122 (iii), Steam-engines, Kinds &c.]. Crank and lever-actuated pumps.-In a multicylinder engine or pump each piston drives through a quadrangular linkwork, the quadrangles being interconnected and mounted on a common centre, which may be the crank-shaft. Each piston carries a pin 7, Fig. 1, which is connected by links 11, 12 to the ends of levers 14, 15 mounted on a sleeve on a coupling between adjacent ends of the crank-shaft, which is in two parts. Each half of the crank-shaft carries a crank-pin 4 mounted between discs 27. The crank-pins are connected by connecting-rods 5 to a gudgeon-pin 28 carried by the upper piston 23, which is formed with a skirt guided by extensions 25 of the upper cylinder. The links 11, 12 of adjacent cylinders may be integral, a single link thus extending between the pistons of adjacent cylinders. In this case the levers 14, 15 may be dispensed with. The links and levers each consist of a number of plates, arranged alternately, and secured by split rings 18 sprung into grooves in the ends of the joint pins 26. The cylinders are formed with flanges 21 resting on segmental flanges 20 on the crank-chamber, and are secured bv segmental flanges 22 engaging beneath the flange 20. The upper cylinder is prolonged and is carried by a neck 24 on the crank-chamber. Two opposed cylinders, or two cylinders at right-angles, may be connected by similar link-work. In a modification, the pins 26 extend outside the crank=chamber and are connected by links, which may be longer than the links 11, 12, to connecting-rods driving outside cranks. In another modification, two fourcylinder units are arranged side by side and drive a single crank by a connecting-rod from a gudgeonpin extending between the two upper pistons 23. In a three-cylinder engine the upper piston 8, Fig. 3, drives a single crank by a connecting- rod 5, working between two systems of quadrangles connecting the pistons, and mounted on fixed spindles 2<1>. A twelve-cylinder engine, Fig. 9, comprises two groups of six cylinders arranged side by side, the upper pistons 23 being connected by a gudgeon-pin 28 driving on a single crank. Two three-armed levers 33, 34 mounted on the crank-shaft are connected to the pistons by links 11, 12.
Patent GB-1087677-A (GB)
Title: Improvements in or relating to cylindrical drums
IPC: G11B17/32
Filed: 1966-07-19
Abstract: 1,087,677. Cylindrical record support. PHILIPS ELECTRONIC & ASSOCIATED INDUSTRT'ES Ltd. July 19, 1966 [July 22, 1965], No. 32397/66. Heading G5R [Also in Division F2] In order [to permit cylindrical magnetic memory drum 1:to expand radially during highspeed rotation without deformation, the drum 1 is secured to an end plate .2 .by a ,sleeve '3 3 having a free length L between attachment points 4, 5 such that E#2À5#R 1 t, where R 1  isthe mean radius of the sleeve 3 and t its wall thickness, and the materials of the drum and sleeve are such that p 1 R 1 <SP>3</SP>/E 1 #p 2 R 2 <SP>3</SP>/E 2  where p 1  and p 2  are the densities- and E 1 , E 2  the elastic moduli of the materials of the sleeve and drum. respectively and R 2  is the mean radius of the, drum. The radial expansion of one end 4 of a sleeve 3 having a. free length. L satisfying the. above relation is substantially unaffected by the expansion of the other end 5 and. thus the drum 1 may expand independently of the endplate 2. The second relation ensures that the drum 1 and sleeve 3 have substantially the same radial expansions at the connection 4. In Fig. 2 (not shown) a cylindrical slot (7) is bored in the end (6) of a drum (9) to form a sleeve (6<SP>1</SP>) integral with the drum (9) and connected to an endplate (10).
Patent GB-382100-A (GB)
Title: Improvements in devices for recording transmitting and reproducing sounds
IPC: H03G9/00
Filed: 1931-11-23
Abstract: 382,100. Reproducing music. MABBOUX, G., 10, Rue Cernuschi, Paris. Nov. 23, 1931, No. 32435. Convention date, Nov. 26, 1930. [Class 40 (iv).] A tone - controlling network is carried by a structure 5 like a conductor's desk and provided with handles M, N, A, F and pushbuttons 4 for gradual and sudden variations of timbre and with a pedal 6a for controlling volume. The Specification as open to inspection under Sect. 91 (3) (a) comprises also a gramophone reproducing system in which automatic tone correction is provided, e.g. with the aid of perforations o n a sound film acting in conjunction with electric or pneumatic means for adjusting the network or with the aid of cams driven by the synchronization shaft coupling a projector and a gramophone. This subject-matter does not appear in the Specification as accepted.
Patent GB-235968-A (GB)
Title: Improvements in or relating to patterns for garments or other articles
IPC: A41H3/06
Filed: 1923-12-28
Abstract: 235,968. Collins, H. Dec. 28, 1923. Drawings to Specification. Ink.-An invisible ink for printing outlines of patterns of garments &c. on newspapers and periodicals consists of phenolphthalein, glycerine, alcohol, and carbon tetrachloride, colour being subsequently developed by treatment with a solution of washing soda or other alkali. Specification 14983/03, [Class 101, Printing other than letterpress &c.], is referred to.
Patent GB-1125347-A (GB)
Title: Improvements in and relating to the delivery of oil or other fluent materials to sea-borne ships and the like
Inventor: ROSS IAN WRAY MUNRO
IPC: B63B22/02
Filed: 1966-07-19
Abstract: 1,125,347. Buoys. I. W. M. ROSS. 11 July, 1967 [19 July, 1966], No. 32466/66. Heading B7A. [Also in Division B8] A buoy 1 having anchors attached at 11 has a swivel 38 for mooring a ship and comprises a buoyancy section 5 and a pipe-stowage section 6 having a base 13 rotatable thereon with interposed rollers 17. A riser pipe 10 connected to a shore supply is connected by pipes 25, 26 to flexible hoses 28, 29 mounted on a platform 20 and a shelf 23 thereon. Power means 30 may be provided to drive the platform 20 to wind and unwind the hoses for their connection to a moored ship so that a liquid cargo can be loaded from the shore supply. The base 13 may be freely rotatable above the section 5 to allow the moored ship to swing or may be driven by power means 34.
Patent GB-777022-A (GB)
Title: Silk-screen printing machine
IPC: B41F15/08
Filed: 1955-11-14
Abstract: 777,022. Stencilling-apparatus. ARGON SERVICE, Ltd.. Nov. 14, 1955 [March 1, 1955], No. 32541/55. Classes 100(1) and 100(2) A silk-screen printing machine comprises a fixed support, a printing table movably mounted upon the support, a pair of arms for connection to a screen frame mounted for rotation with an movement along a shaft rotatably mounted in bearings movable at right-angles to the shaft in guide tracks on the fixed support, and means for locking the arms to the shaft in desired positions. The screen frame 2, Fig. 1, is supported on arms 4 adjustable on a shaft 7 according to the width of the screen. The shaft 7 is mounted in bearings 8 slidable and lockable in guide tracks 40, according to the length of the screen. The bearings 8 are adjustable vertically by means of screws 14, and the height of the front of the frame 2 is also adjustable vertically by a screw 23, according to the thickness of the article to be printed on. The shaft 7 has frusto-conical ends held in complementary recesses in the bearings with a pressure and braking effect adjustable by screws 22. A bar 10 biases the screen away from the printing table 1. The table 1 is perforated, and below it is a chamber connected to a source of suction through a valve which is closed through the medium of a Bowden cable when the raising of the screen rotates the shaft 7, so as to cut off the suction. Registering sheets. Sheets to be printed are registered against stops each comprising an outer cylinder 26, Figs. 1 and 4, open at the top and secured in and flush with the surface of the table, and an inner' cylinder 28 open at the bottom, a spring 29 urging the cylinder 28 up to the position shown, whence it is forced down flush with the table by the screen frame when the latter is lowered.
Patent GB-631596-A (GB)
Title: Improvements in conveyors
IPC: B65G21/02
Filed: 1946-11-01
Abstract: 631,596. Conveyers : hoppers. HOFFSTETTER, G. O. Nov. 1, 1946, No. 32542. Convention date, Jan. 17. [Class 78 (i)] Heating means' are disposed between the upper and lower runs of an endless conveyer at the bottom of a hopper. An endless conveyer 28, Fig. 2, comprising a belt secured to spaced chains passing over sprockets (not shown) disposed between the lower spaced ends of the walls 29, 30 of a hopper 27, and between vertical plates 31 having lower flanges 32 is heated by pipes between its upper and lower runs. The pipes 33 are connected between a front manifold 34 and a rear manifold not shown, a heating medium such as hot water or the exhaust gases of an internal combustion engine being passed through the manifolds and pipes by means of pipes 35, 37. An upper plate 38 is secured to the plates 31. In a modification the manifolds 34 and pipes 33 are omitted and a further horizontal plate spaced below the plate 38 completes a heating chamber between the two runs of the conveyer. Alternatively the further plate may be omitted, the flanges 32 being replaced by a bottom plate completing the heating chamber. In the construction of Fig. 5 the heating chamber 64 opens at 60, 65 into housings 58, 59 on the sides of the vertical plate 54, 55 the inlet and outlet pipes 66, 67 being connected at opposite ends of the housings 59, 58. The Specification as open to inspection under Sect. 91 comprises also a modification of Fig. 5 in which the chamber 64 is omitted, the housings 58, 59 being joined outside the plates 54, 55. Two constructions of screw conveyer mounted in the bottom of a hopper and having heating chambers in the hollow shaft of the screw and around the cylinder in which the screw works respectively are shown. This subject-matter does not appear in the Specification as accepted.
Patent GB-194365-A (GB)
Title: Improvements in or relating to wireless telegraphy antennae
IPC: H01Q9/16
Filed: 1921-12-05
Abstract: 194,365. Dornig, W. Dec. 5, 1921. Aerials; diplex and multiplex signalling.-An aerial of horizontal loop type, wherein the capacity between the aerial and earth is not utilized, comprises a single loop 1 of a width equal to substantially half the wave length, and with its ends connected to a source of oscillations 3 or to a receiving apparatus. The lcop may be provided with equally distributed turing condensers 2. Waves of different lengths may be transmitted or received simultaneously by providing a separate loop for each wave length and these loops may be arranged concentrically. A directional effect may be obtained on a rectangular aerial, the distance between two opposite sides of which equals half a wave length. In this form, waves of different lengths may be sent out simultaneously from the two pairs of opposite sides.