baber/WOPTO huggingface dataset:
Patent GB-1174542-A (GB)
Title: Process for preparing Polyolefins
IPC: C08F10/00
Filed: 1968-01-29
Abstract: 1,174,542. Two-stage olefin polymerization. FARBWERKE HOECHST A.G. 29 Jan., 1968 [28 Jan., 1967], No. 4591/68. Heading C3P. Homopolymers of ethylene or copolymers of ethylene with up to 10% of another alphaolefin are made by polymerizing the monomer or monomers in either (a) a liquid dispersing medium in contact with a gaseous phase, or (b) a gaseous phase, at a pressure up to 10 atmospheres and a temperature between 50 and 120 C. in the presence of a catalyst comprising (1) for (a) from 0À05 to 0À3 millimol per litre of medium and for (b) per 0À5 litre of reactor of a trivalent titanium compound containing chlorine and (2) from 0À1 to 3À0 millimol of Al per litre of dispersing medium or per litre of reaction volume, of a trialkyl aluminium compound, or a reaction product of an aluminium trialkyl or aluminium alkyl hydride with a diolefin, and conducting the polymerization in two stages, i.e. stage one being carried out in the presence of 0 to 10% of hydrogen to give a polymer containing 5 to 30% by weight of the total polymer, and stage two in the presence of 20 to 80% of hydrogen to give the remainder of the total polymer. The amount of the catalyst present in the first stage is sufficient for both stages. In the examples the catalyst component (1) is made by reacting ethylaluminium sesquichloride with dichlorotitanic acid dipropyl ester, and component (2) is aluminium isoprenyl or aluminium triisobutyl. The polymers prepared are in Example I, in both stages a copolymer of ethylene and butene-1, in Example II, a copolymer of ethylene and butene- 1 in stage one and polyethylene in stage two, and in Example III, in stage one polyethylene and in stage two a copolymer of ethylene and butene-1.
Patent GB-554579-A (GB)
Title: Improvements in or relating to portable machines for affixing adhesive strip
IPC: B65H35/00
Filed: 1942-04-08
Abstract: 554,579. Affixing adhesive strip. BARRY, J. E., and HARTMAN, I. April 8, 1942, No. 4602. [Class 73] A portable machine for affixing adhesive strip a to the covering of a parcel b comprises two damping wicks or pads c, d by which the strip and parcel are simultaneously damped. A reservoir e supplies the wicks with water. A feed roll h for the adhesive strip is turned by hand and is provided with a pawl and ratchet to prevent backward rotation. A pivoted rocking frame carries a transverse pressure member f for pressing the adhesive strip on to the upper wick and rollers u for pressing the strip on to the parcel. The frame is rocked by a pivoted handle n urged to normal position by a spring o and connected to the frame by a link s and levers. A knife k is depressed to sever the strip when desired.
Patent GB-875862-A (GB)
Title: New colouring process for cellulose textile materials
Inventor: DAWSON TIMOTHY LESLIE
IPC: C09B62/00
Filed: 1959-02-10
Abstract: Cellulose textile materials are coloured by applying an acid-binding agent and one or more water-insoluble reactive dyestuffs which are free from sulphonic and carboxylic acid groups but which contain, in addition to or forming part of the reactive group, one or more hydroxyl groups.  The dyestuffs are applied from an aqueous dispersion at temperatures of 0 DEG -100 DEG C. by dyeing, padding or printing techniques, and in the case of padding or printing, a heat or steam treatment is subsequently applied. The acid-binding agent, e.g. sodium or potassium hydroxide, sodium or potassium carbonate, trisodium or tripotassium phosphate, magnesium oxide or ammonium hydroxide, or a substance liberating an acidbinding agent on heating, such as sodium-bicarbonate or -trichloroacetate, may be applied before, together with or after the dyestuff, from an aqueous solution or suspension, or may be added to the dyebath during dyeing.  The aqueous solution of the acid-binding agent may also contain electrolytes such as sodium-chloride or -sulphate.  The aqueous dyebath may also contain sodium-chloride, -sulphate or -alginate, urea, dispersing agents and aqueous emulsions of organic liquids such as trichloroethylene.  The printing paste may also contain urea, methyl cellulose, starch, locust bean gum, sodium alginate, water-in-oil or oil-in-water emulsions, surface active agents, sodium-m-nitrobenzene sulphonate and organic liquids such as ethanol. Suitable dyestuffs are of the nitro, mono- or poly-azo, p anthraquinone or phthalocyanine series and contain one of the following reactive groups: halogenated-1 : 3 : 5-triazinyl or pyrimidyl groups, g -halogenob -hydroxypropyl-amino groups, di-(g -halogenob -hydroxypropyl) amino groups, b -halogenoalkylsulphamyl groups, b -halogenoethoxy groups, b -halogenothioethane groups, g -halogenob -hydroxy-propylsulphamyl groups, chloracylamino groups, halogenoacyl groups, sulphon fluoride groups, vinylsulphonyamino groups, halogenoethylsulphonyl groups, thiocyano groups, alkyl- or aryl-sulphonyloxy-alkylsulphonyl groups, alkyl- or aryl-sulphonyl-oxyalkylaminosulphonyl groups, alkyl- or aryl-sulphonyloxyalkylamino groups, alkyl- or aryl-sulphonyloxyalkoxy groups, alkyl- or aryl-sulphonyloxyalkylaminocarbonyl groups, acryloylamino groups, trichloroacryloylamino groups, vinylsulphonyl groups and epoxypropyl groups.  Numerous dyestuffs are specified and numerous examples of dyeing and printing are given.
Patent GB-124259-A (GB)
Title: Improvements in or relating to the Balancing of Reciprocating Engines.
Inventor: RICARDO HARRY RALPH
IPC: F16F15/26
Filed: 1918-03-18
Abstract: 124,259. Ricardo, H. R. March 18, 1918. Engines with single fixed cylinder with shaft not passing through shaft; radial-cylinder engines.-- Engines with a single crank D upon which one or more cylinders act are balanced by reciprocating or oscillating weights H arranged on the opposite side of the shaft to the cylinders and actuated to move oppositely to the pistons by eccentrics G to which the weights are secured. The weights are guided by pivoted rods K or straight guides.
Patent GB-555531-A (GB)
Title: Improvements in and relating to chairs
IPC: A47C7/70
Filed: 1942-04-13
Abstract: 555,531. Tables. EVANS, W. E. April 13 ,1942, No. 4806. [Class 52 (iii)] An occasional table for an armchair is arranged to be enclosed vertically in one of the arms and when in the in-use position to straddle and be supported upon the arms of the chair. As shown in Figs. 2 & 3 the table 8 is enclosed in a receptacle in the right arm of the chair. The table 8 is hinged to a lower portion 10 adapted to slide in guides and to be counterbalanced by weights 16 housed in end receptacles 13 and connected to the portion 10 by cords 15. The arrangement shown in Fig. 3 is adapted to be produced as a unit to be built into the arm of the chair.
Patent GB-621340-A (GB)
Title: Improvements in or relating to building slabs
IPC: E04C2/04
Filed: 1947-02-19
Abstract: A concrete building block is provided with a raised or recessed panel or panels of coloured cement added while the concrete is still soft so that the whole sets together.  Shallow grooves may also be cut in the surface and filled with coloured cement.  White or coloured stones may be pressed into the block surface.
Patent GB-480340-A (GB)
Title: Improved binding preparations
IPC: C09J5/06
Filed: 1936-08-17
Abstract: Glue films are prepared by impregnating thin paper films with formaldehyde-aminotriazine condensation products.  In an example, 2 : 4 : 6-triamino-1 : 3 : 5-triazine is condensed with aqueous formaldehyde and concentrated syrup is used to impregnate unsized kraft paper which is dried to yield a glue film.  Specifications 455,008, 468,677, 480,316, and 480,339 are referred to.
Patent GB-577969-A (GB)
Title: Improvements in or relating to microphones
IPC: H04R1/40
Filed: 1935-02-15
Abstract: 577,969. Acoustic attenuators. DEWHURST, H. Feb. 15, 1935, No. 4872. [Class 13] [Also in Groups VI and XXXIX] In a microphone comprising an apertured casing with one or two diaphragms of which both sides are exposed to atmospheric pressure (see Group XXXIX) the rear part 59 of the casing is closed except for apertures 60. The part 59 is formed with flanges 61, 62 between which are located thin annular plates 63 separated by small spacers so that noise or other unwanted sound waves entering the back of the microphone are attenuated. Dust and moisture are excluded by oiled silk or goldbeaters skin positioned beneath the apertures 60.
Patent GB-554853-A (GB)
Title: Improvements relating to lathes
IPC: B23B5/38
Filed: 1942-04-15
Abstract: 554,853. Lathes. SMITH, R. April 15, 1942, No. 4934. [Class 83 (iii)] A lathe for taper turning has the saddle G moving on a guide plate C which is pivoted at B to the bed, and is adjusted by a screw member N coacting with a nut P on the bed. The plate is clamped at the desired angle by studs E, engaging slots D in the plate. The saddle which carries the usual cross slide V operated from a hand wheel U is operated from an articulated or flexible shaft H driven from the headstock.
Patent GB-1599929-A (GB)
Title: Transmission mechanism
IPC: F16H57/021
Filed: 1978-02-07
Abstract: A tractor driving system includes an overload coupling in which at least one latch plunger housed in one coupling part fits in a recess of a second part to establish connection. The plunger has or is part of a hydraulic system and can be forced out of the recess upon overload against the hydraulic pressure in the system and, in some instances, with the aid of centrifugal forces if the coupling is rotary. The plunger can be part of a unit that can be releaseably fastened in the coupling housing and set to trip upon torque exceeding a predetermined level on the coupling. Also, the plunger can have internal ducts or external conduits that include a pressure relief valve, as well as a spring return, which can effect connection upon reduced speed when centrifugal force factors are reduced. The pressure in the system can be set remotely with a piston that is spring loaded. In one variation, the coupling can be within a planetary gear system that establishes driving connection from an input to an output via planetary and sun gears. Thus, the planetary gears can be mounted on a carrier that can be held to the housing by a plunger to drive a p.t.o. shaft. Two sets of planetary gears can be mounted within the gear housing to drive the p.t.o. shaft at different speeds and a common plunger used to establish either connection. As part of the system, a distributor can selectively engage either system and a switching member set to allow fluid to pressure the system to a predetermined level.
Patent GB-1178311-A (GB)
Title: Resilient Support Assemblies.
Inventor: POOLE RONALD ROBERTSON
IPC: F16F1/371
Filed: 1967-02-02
Abstract: 1,178,311. Resilient mountings. GENERAL MOTORS Ltd. 11 Jan., 1968 [2 Feb., 1967], No. 5121/67. Heading F2S. [Also in Division E2] A resilient support, e.g. for mounting the compressor unit of a refrigerator, comprises a block 10 of elastomeric material having adjacent one end an external groove and a blind hole terminating beyond the groove in an enlarged inner end. In Fig. 1 the block has an annular groove 12 and a blind hole 13 at each end for engagement in apertured brackets 15, 19, which are pressed against the apertures by plugs 18 fitting in the blind holes. In Figs. 4 and 5 (not shown), the block is of rectangular form with grooves on opposed sides, and the blind hole is of rectangular crosssection. Fig. 7 (not shown), depicts a construction generally similar to that of Fig. 1, but with countersunk blind holes and complementary cylindro-conical plugs.
Patent GB-1365856-A (GB)
Title: Signal control circuits
IPC: H03H11/24
Filed: 1973-02-01
Abstract: 1365856 Automatic gain control MATSUSHITA ELECTRIC INDUSTRIAL CO Ltd 1 Feb 1973 [1 Feb 1972 8 Feb 1972 (2)] 5134/73 Heading H4R A variable attentuator comprises a potentiometer one of the arms of which is constituted by two parallel connected oppositely poled three electrode electron conducting devices. As described the attenuator comprises resistor 13 in series in a signal path with the emitter collector paths of oppositely poled transistors 15, 16, connected in shunt across the output of the path. The impedance of the transistors is varied by feeding current to the bases of the transistors from a constant current source formed by either common or individual high resistances or from the constant current source comprising transistors 21, 24. The control voltage for the constant current source may be derived by a diode or transistor rectifier from the output of an amplifier (31) fed from the attenuator, Figs. 7 and 8 (not shown). A modified form of constant current circuit is described with respect to Fig. 9 (not shown). The transistors 15, 16, are preferably of the same type, possibly on the same semi-conductor chip as part of a monolithic integrated circuit.
Patent GB-249094-A (GB)
Title: Apparatus for grinding lenses
IPC: B24B13/00
Filed: 1926-02-23
Abstract: 249,094. Optical Development Corporation, (Assignees of Fink, E. J.). March 10, 1925, [Convention date]. Lenses, grinding.-A machine for grinding a number of lenses simultaneously consists of a number of grinding-wheels 14 carried by a spindle 15, the wheels operating upon lens blanks mounted upon elements 18, which are carried by a slowly rotating drum 10 beneath the grinding-wheels. The elements 18 are curved and occupy about one fifth of the periphery of the drum, being located between pins 20 and several, sets of elements, which are shorter than the drum fitting at their ends between flanges 19 on the drum; the radius of curvature of the underside 18<a> of the elements is slightly less than that of the surface 10<a> of the drum, so that the elements rest at their edges only upon the drum, thus giving accurate seating on the drum, whereby the lenses are all at the same distance from the axis of the drum. The elements carrying the lenses are placed in stacks in guides 22a, 22<b>, 22<c> and are fed on to the drum by members 23 pressed by springs 24; rotation of the drum carries the elements beneath the grinding-wheels, after which the elements fall from the drum and down guide-rails 24a, 24<b>, 24<c>. Whilst upon the drum, the elements are held down thereon by rubber belts 26, mounted on rollers 27 in casings 28, the lower runs of the belts engaging recesses 18<c> in the elements. The elements have therein recesses 37, Fig. 2, in which the moulded lens blanks 41 are mounted by means of pitch, outlets allowing tho excess pitch to escape. The drums map be polygonal or of other shape instead of cylindrical. The several sets of elements may be in staggered relationship on the drum, so that the stage of grinding is different in each set. Water is supplied to the grinding-wheels during grinding.
Patent GB-586918-A (GB)
Title: Improvements relating to cartons for use as flower pots
IPC: B65D5/06
Filed: 1944-03-22
Abstract: 586,918. Flower-pots. HORTICULTURAL & BOTANICAL ASSOCIATION, Ltd., and RUSSON, W. C. March 22, 1944, No. 5335. [Class 6 (ii)] [Also in Group XVII]. A flower pot or open-topped receptacle is produced by folding up the blank of Fig. 1, [see Group XVII], which may be suitably treated or impregnated.
Patent GB-909190-A (GB)
Title: Apparatus for use in working wood or other materials
IPC: B27C5/00
Filed: 1961-02-14
Abstract: 909,190. Woodworking. GIESECKE, G., GIESECKE, G., GIESECKE, K., and GIESECKE, H., [trading as HUBEL & PLATZER]. Feb. 14, 1961 [Feb. 26, 1960], No. 5463/61. Class 145. A woodworking machine has a turret 2 rotatable and axially adjustable on a pillar  and a plurality of exchangeable tools 4, 5 are carried by the turret so that at least two spindles can be simultaneously in the working position. As shown, two tools 4, 5 carrying the same or different cutters are provided and one of them is carrid by a slide 6 so that it is adjustable independently of the other in a direction parallel to the pillar axis. A radial arm 3 on the turret extends between two adjusting screws 7 so that the pivotal position of the turret on the pillar can be set and locked. The first cutter 15 may be a pre-slotting saw blade and the second cutter 14 may be a slotting cutter or profiled dovetailing cutter. Both tools can be angularly adjusted about an axis perpendicular to the pillar and with the tools in oppositely inclined positions dovetails can be cut by a pair of saws, one on each tool.
Patent GB-685445-A (GB)
Title: Apparatus for continuously digging coal
IPC: E21C27/22
Filed: 1949-03-02
Abstract: 685,445. Mining-machines. COLMOL CO. March 2, 1949 [March 2, 1948], No- 5751/49. Class 68(i) In a coal-mining machine, as the machine advances, a plurality of rotating cutting heads attack the face to break it down. Each head consists of a rotating arm on which, at intervals, are mounted bits, which, as the arm revolves, cut in the face a series of concentric kerfs. The cutting heads are arranged in rows with the lower row or rows projecting ahead of the row or rows above it, and the kerfs formed by the heads overlap. The cutting tips of the innermost bits are ahead of the outermost bits. The rotating shafts of the heads are mounted in a gear box which is pivotally supported from the self-propelled endless track machine chassis by arms and may be raised and lowered by a jack 54, the drive to the gear box being by way of shaft 61 and suitable gearing to a motor 20. Within the machine chassis is a scraper conveyer 121 the forward end of which is mounted in a scoop 41 that is secured to the gear box. The disintegrated coal drops away from the face and is swept by the lower cutter 'heads laterally inwards into the path of the scoop which loads it into the scraper conveyer to be carried away to the rear of the machine. The floor, roof and sides of the cutting made by the heads are cleaned up by suitably disposed scraper blades. The machine is advanced into the face by means of the endless tracks 2, additional pressure being applied when shoes 173, 175 mounted on props 167 engage the roof, or the machine may be advanced by jacks 160 mounted on the rear of the machine and acting against expansible props 167. To facilitate more rapid advancement, additional jacks may cooperate with jacks 160, these additional jacks being arranged to act in parallel or in tandem.
Patent GB-268933-A (GB)
Title: Improvements in dyeing acetate silk
IPC: C09B1/28
Filed: 1926-03-01
Abstract: 268,933. British Dyestuffs Corporation, Ltd., Shepherdson, A., and Davidson, A. March 1, 1926. Anthraquinone derivatives. - Acetate silk or mixtures containing it are dyed by means of coeramidines (anthraquinoneacridines), which may be obtained bv heating a-arylaminoanthraquinones with sulphuric acid. The dyestuffs may be employed in the form of aqueous suspensions or solutions. A dispersing agent, e.g. turkey red oil or the naphthalene derivative described in Specification 224,077 may be added to the dyebath or previously mixed with the dyestuffs. The dyestuffs from the following arylaminoanthraquinones, with the shades obtained on acetate silk, are specified :-1-phenylamino, 1-phenylamino-2-methyl-, 1: 5-diphenyldiamino-, 1: 4-di-p-tolyldiamino-, and 1-amino-4- or 5)-p-tolylaminoanthraquinones. In an example, acetate silk is dyed a full greenishyellow with the coeramidine from 1-phenylaminoanthraquinone. 1.-Amano-5-p-tolylaminoanthraquinone is obtained from 1-amino-5-chloranthraquinone and p-toluidine.
Patent GB-1187949-A (GB)
Title: Electrical Socket or Socket Strip for Receiving Plugs, and a Method of Production thereof.
Inventor: STEIPE LEO
Filed: 1969-02-04
Abstract: 1,187,949. Two part couplings. SCHALTBAU G.m.b.H. 4 Feb., 1969, No. 5930/69. Heading H2E. An edge connector for a printed-circuit board is formed as a conductive lining 4 of a channel 2 in a resilient plastics body 1. The body may be slit as at 7 to separate the lining 4 into a plurality of sockets. The lining 4 is externally connected by a wire (6) passing through the base of body 1 (Fig. 1, not shown). The body 1 is extruded (Fig. 3, not shown) and the lining 4 may be formed by a sheet (10) simultaneously pressed into the body by a tool (11), a vapour deposit, conductive lacquer or emulsion applied while the body is cooling, or a deposit produced by electrolysis when the body is cold. The body is stored in long lengths from which desired lengths may be cut.
Patent GB-937434-A (GB)
Title: A vowel synthesizer
IPC: G10L25/00
Filed: 1960-02-19
Abstract: 937,434. Secret transmission. NIPPON ELECTRIC CO. Ltd. Feb. 19, 1960 [Feb. 24, 1959], No. 5941/60. Class 40 (4). Vowel synthesis apparatus has a plurality of similar circuits equal in number to the number of formants in the vowels to be synthesized. Input terminals a 1 , a 2 , a 3 , Fig. 1, receive signals representing the centre frequencies F 1 , F 2 , F 3  of the first, second and third formants, respectively, while input terminals b 1 , b 2 , b 3  receive signals representing the amplitudes of the formants at their respective centre frequencies and an input terminal c receives a signal representing the pitch of the vowel. By " centre frequency " is meant the frequency which has the maximum energy in the formant spectrum. For synthesis of the first formant, a wave generator 1 is excited by the signal at the input a 1  to produce oscillations of frequency f 1  + F 1  where f 1  is a constant characteristic of the generator. These oscillations are modulated in a balanced modulator 2 with signals generated in a harmonic generator 3, such signals consisting of the pitch frequency and higher harmonics of the pitch frequency. An amplitude shaping filter 4 is interposed between the generator 3 and modulator 2. This may have low pass or band pass characteristics. The output from the modulator 2 is applied to an equalizer 5 having an attenuation characteristic, Fig. 3, to provide attenuated output waves having a wave envelope of similar shape to the wave envelope of the formant but extending over a different frequency range from that of the formant. The equalizer has minimum attenuation at frequency f 1 . Its output is applied to a demodulator 6 for demodulation by the signal of frequency f 1  + F 1  from generator 1. After passage through a filter 7 the signal, now a vowel formant, is applied to an amplifier 8, the gain of which is controlled by the signal from input terminal b. Amplifiers 81 and 8<SP>11</SP> receive the other vowel formants in a similar manner and the outputs of all three amplifiers are fed to a mixer 9. In a modification the output of wave generator 1 is f 1 -F 1 .
Patent GB-124900-A (GB)
Title: Improvements in Elevators for Grain and the like.
Inventor: NUTE ALBERT EDWIN
IPC: B65G65/00
Filed: 1918-04-08
Abstract: 124,900. Nute, A. E. April 8, 1918. Portable endless-chain elevators; directing and adjustably supporting.-A bucket elevator for grain &c. is supported by wheels at its lower end and at its upper ,end is pivotally mounted in flanged rollers running in guides in a frame B which runs on rollers E on a semicircular track D fixed to the vehicle K. The pivot J is connected by wires to the ends of 'chains H which pass round sprockets actuated by a hand-wheel G. The sprocket shaft is provided with a ratchet which is engaged by a pawl mounted on the frame. The rollers E are actuated by the chain F. When the elevator is raised clear of the ground for transport, it is steadied by the engagement of the hooked ends of the bars M with the bar N. A scraper O and a guard Pare attached to the foot of the elevator. In use, the foot of the elevator moves forward automatically into the heap of material as the buckets remove it.