baber/WOPTO huggingface dataset:
Patent GB-873690-A (GB)
Title: Road vehicle steering control system
IPC: G05D1/02
Filed: 1959-10-16
Abstract: 873,690. Automatic steering control systems for road vehicles. GENERAL MOTORS CORPORATION. Oct. 16, 1959 [Nov. 3, 1958], No. 35077/59. Class 38 (4). In an automatic steering control system for a road vehicle, a steering arrangement is controlled in dependence on a signal representative of the displacement of the vehicle from a desired course and the sensitivity of the steering arrangement is varied in proportion to the road speed. As shown, an alternating flux around a leader-cable, not shown, induces alternating voltages in coils 22 carried on a road vehicle. The induced voltages are rectified and applied across capacitors 30 connected in series. The resultant voltage at point 34, representing the position of the coils 22 with respect to the leadercable, is applied to a potentiometer 40, 42. The voltage at a tapping 44 is fed to a ring modulator 56 energized via transformers 62, 154 from a power supply 66. An A.C. error signal is derived from a ring-modulator transformer 48 and fed to the input of a summing amplifier 104. An A.C. rate-of-displacement signal is derived from point 34 through a differentiating circuit 68, 70, a ring-modulator 80 and a transformer 78 and fed to the input of the summing amplifier 104. The amplified sum of the A.C. error signal and A.C. rate signal is fed through an amplifier 110 to a ring demodulator 118 the D.C. output of which energizes the coils 134 of an electro-hydraulic steering servo positioning guiding wheels so as to maintain the road vehicle in a predetermined position with respect to the leader cable. Feedback is applied to the amplifier 110 from a potentiometer 148 having a slider 150 positioned by the guiding wheels. The gain of the amplifier 104 is controlled in dependence on the road speed of the vehicle by feedback from a potentiometer 162 having a slider 106 positioned by a servomotor 160 controlled by a tachometer 158.
Patent GB-793981-A (GB)
Title: Improvements in or relating to mops
IPC: A47L13/146
Filed: 1955-12-08
Abstract: 793,981. Mops. TIPPING, W. F. Dec. 10, 1956 [Dec. 8, 1955], No. 35238/55. Class 19. A mop having a sponge 26 or a string head carried on pivotally connected plates 17, 18 arranged so that the sponge may be folded over to press one half against the other is characterized in that the top surface of the sponge or head is secured to a mounting by elements 25 which are slidably carried in guides 20, 21 on said plates so as to be detachable therefrom. Stops at the outer ends of the guides limit the outward movement of the elements 25, preferably four or more rectangular plates bonded to the sponge or head, which are entered at the inner ends of the channels. The plates 17, 18 are spring biased to lie, when in use, in a common plane.
Patent GB-1434387-A (GB)
Title: Fuel injection pump for an internal combustion engine
IPC: F02M59/44
Filed: 1973-07-24
Abstract: 1434387 Starting diesel engines SIGMA DIESEL 24 July 1973 [26 July 1972] 35299/73 Heading F1B A fuel enriching device for assisting cold starting of an I.C. engine having an engine driven fuel injection pump comprises a retractable stop member adapted to limit the movement of the pump output regulating rack member so that the pump delivery does not exceed a full load value the stop comprising a member pivoted at one end on an articulation which is adjustable along the rack axis, the member being pivotable between limiting and non-limiting positions and having a portion forming a stop for the rack and means for moving the member to the non-limiting position to deliver more fuel than the full load value for starting, the means including a movable element connected to the members by a link allowing a limited degree of free angular movement of the member relative to the movable element and guiding means to keep the member in a plane parallel to the axes of the control means and the rack. The rack 2 of the pump is pivotally connected to a retractable stop B, a surface 28 of which engages a pin 29 carried by a connecting part 4 pivotally connected at 5 to the rack. Engagement of the pin 29 with the surface 28 prevents the rack moving beyond the "Full Load" position. During starting, a solenoid 14 is energized and lifts a spring-loaded piston 20 having a stem 22 which is engaged in a bifurcated end of the retractable stop B, so that the rack can move to the right as seen in Fig. 1 to provide enrichment. In a modification, Fig. 5, a plate 40 secured to the  part 4 engages the end of a rod 38, mounted by a ball-joint 39 in an adjusting screw 26. The solenoid carries an apertured plate 22a which lifts the end of the rod 38 clear of the plate 40 when the solenoid is energized.
Patent GB-949342-A (GB)
Title: Improvements in or relating to devices for damping the opening and closing movementsof high-pressure valves
IPC: F16K47/00
Filed: 1961-09-29
Abstract: 949,342. Valves. BOHLER & CO. A.G. GEB. Sept. 29, 1961 [Jan. 19, 1961], No. 35351/61. Heading F2V. A device for damping the opening and closing motion of a fluid pressure-actuated valve comprises a piston 17 mounted in a cylinder 11 filled with a fluid, such as oil, the piston being provided, at both end faces, with. a ring portion 18 adapted, towards the end of the piston stroke, to enter an annular recess 15 formed in each end wall 14 of the chamber, the recess communicating, during entry of the ring, with the adjacent portion of the chamber via a restricted passage. The piston 17 is mounted on a shaft 10 connected to the actuating piston 5 of the valve. The ring portions 18 fit into the annular recesses 15 with a slight clearance such that when the ring enters the recess, the oil therein is forced out through the restricted clearance space. Alternatively, the piston ring may be a close fit in the recess and a number of small holes provided in the bottom of the latter. Nipples are provided for filling the cylinder with oil.
Patent GB-452186-A (GB)
Title: Listening device for telephones
IPC: H04M1/215
Filed: 1935-12-20
Abstract: 452,186. Earpiece attachments. CARSTENS, O., 51, Bahnhofstrasse, Cottbus, Germany. Dec. 20, 1935, No. 35357. Convention date, Jan. 4. [Class 40 (iv)] A device to enable two persons to listen to the same telephone conversation comprises a capsule which includes two concentric perforated plates 1, 3 and which is connected by a tube 6 to a listening capsule 9 which includes a perforated plate 10. The capsule 1, 3 is held between the telephone receiver and the listener's ear and it may be provided with a loop for suspending it from the ear. More than one tube 6 may be provided so as to enable more than two persons to listen.
Patent GB-760667-A (GB)
Title: Substituted tetrahydronaphthalenes
Filed: 1954-12-07
Abstract: The invention comprises 6-(lower alkyl)-7-acetyl - 1,1,4,4 - tetramethyl - 1,2,3,4 - tetrahydronaphthalenes where the lower alkyl group contains 1 to 4 carbon atoms such as methyl, ethyl, isopropyl, or tertiary butyl.  The compounds are prepared by condensing 2,5 - dichloro - 2,5 - dimethyl - hexane with a lower alkyl substituted benzene hydrocarbon in the presence of a condensing agent such as aluminium chloride or ferric chloride to form the 6 - (lower alkyl) - 1,1,4,4 - tetramethyl-1,2,3,4 - tetrahydronaphthalene which is then acetylated.  In examples: (1) 2,5-dichloro-2,5-dimethylhexane is condensed with toluene in the presence of anhydrous aluminium chloride to give 1,1,4,4,6 - pentamethyl - 1,2,3,4-tetrahydronaphthalene which is further condensed with acetyl chloride in ethylene dichloride in the presence of anhydrous aluminium chloride to yield 7-acetyl-1,1,4,4,6-pentamethyl - 1,2,3,4 - tetrahydronaphthalene; (2) anhydrous ferric chloride is used to condense 2,5 - dichloro - 2,5 - dimethyl - hexane with ethyl benzene and the product is acetylated with acetyl chloride in ethylene dichloride using aluminium chloride to give 7-acetyl-1,1,4,4-tetramethyl - 6 - ethyl - 1,2,3,4 - tetrahydronaphthalene; (3) and (4) cumene and tertbutyl benzene replace toluene in (1) above to yield the 6-isopropyl- and 6-tert-butyl-homologues respectively.  The compounds are synthetic musks for use in perfumes, cosmetics and soaps (see Groups III and VI).ALSO:Soap compositions are perfumed by addition of a 6 - alkyl - 7 - acetyl - 1:1:4:4 - tetramethyl - 1:2:3:4 -tetrahydronaphthalene in which the alkyl group contains from 1 to 4 carbon atoms and may be methyl, ethyl, isopropyl and tert - butyl.  Examples are given.ALSO:Cosmetic perparations and perfumes containing synthetic musk-like compounds which are 6 - alkyl - 7 - acetyl - 1 : 1 : 4 : 4 - tetra methyl - 1 : 2 : 3 : 4 - tetrahydro - naphthalenes in which the alkyl group contains from 1 to 4 carbon atoms such as methyl, ethyl, isopropyl, and tertiarybutyl are described and claimed.  In examples, (6), creams compounded from beeswax, mineral oil, borax, water and a perfume oil containing the above compounds are described; (7), floral soap perfume oils and (8) bouquet type soap perfume oils containing the above compounds are described.
Patent GB-1471117-A (GB)
Title: Diagnostic device for a liquid sample
IPC: B01L3/02
Filed: 1975-08-27
Abstract: 1471117 Determination of the bacteria content of body fluid KENDALL CO 27 Aug 1975 [29 Aug 1974] 35391/75 Heading G1B [Also in Division A5] A device for determination of the bacteria content of a liquid sample comprises a receptacle 30 having a cavity 90a or 90b, a culture medium disposed in the cavity, means for example needle 22 for establishing communication between the liquid sample and the device, a syringe 20 for withdrawing and expelling liquid and a valve assembly 24 attached to the syringe and to the receptacle and operative to connect the pump selectively to the establishing means, for intake of liquid sample, and to the receptacle, to expel liquid sample into the receptacle. Before use, the inner part 84 of the receptacle can be removed using peel-tab 95 for introduction of culture media into the compartments 90a, 90b. On reassembly, a foil sheet 102 may be secured to peripheral flange 104 of the receptacle to seal part 84 into position. The receptacle may contain an absorbent cellulose pad or sponge 98 to absorb excess sample. The sample may be obtained by inserting needle 22 into a catheter which contains sample or into a tubular member at the other end of which is a swab which carries a mixture of body fluid and added saline.
Patent GB-1491929-A (GB)
Title: Electrochemical cells having solid electrolyte of tubular form
IPC: H01M10/39
Filed: 1975-08-27
Abstract: 1491929 Constraining electrolyte tube in Na - S cells CHLORIDE SILENT POWER Ltd 19 Aug 1976 [27 Aug 1975] 35406/75 Heading H1B An electrochemical cell, e.g. a Na-S cell having a tube of solid electrolyte material, e.g. B alumina separating a liquid alkali metal from a cathodic reactant wherein constraining means are provided around the electrolyte tube, the constaining means having a coefficient of thermal expansion such as to provide an increasing inward pressure on the electrolyte tube as the temperature rises. The constraining means may be provided by wire hoops, continuous wire, perforated sheet metal, e.g. low expansion Fe-Ni or Fe-Ni-Co alloy, sodium resistant glass fibres or carbon fibre having a coefficient of thermal expansion less than that of the B alumina tube and surrounding the tube. Alternatively the tube may be located in a housing having a relatively low coefficient of thermal expansion, e.g. ferritic stainless steel, low expansion Fe-Ni or Fe-Ni-Co alloy, Co, Ni, Nb, Mo, Zr or alloys thereof and elements of relatively high coefficient of thermal expansion, e.g. Al or Cu located between the housing and tube whereby the difference in coefficient of thermal expansion between the element and housing produces the required constraint on the electrolyte tube. The elements may be in the form of a perforated ruffle, Figs. 1 and 2, cylinders Fig. 3 or ceramic, vitreous, alkali or alkaline earth metal powder, e.g. calcium fluoride Fig. 4.
Patent GB-380673-A (GB)
Title: Improvements in or relating to breakers for use in the manufacture of paper
IPC: D21D1/02
Filed: 1931-12-22
Abstract: 380,673. Paper pulp breakers. WAHLBERG, H. S., Deje, Sweden. Dec. 22 1931, No. 35460. [Class 96.] In a breaker for waste paper, paper pulp, &c. the roll 1 carries one or more surrounding concentric rings or discs 4 having teeth 6 projecting from the roll and formed by cutting or slitting the rings &c. at intervals and bending outwardly. The hollow castiron roll 1 is closed at its ends and has grooves 2 carrying the pulp over a backfall at the rear of the roll. The rings 4 of substantially T section have slits 5 in the web, the teeth 6 being bent alternately on opposite sides, directed oppositely to the rotation of the roll and preferably staggered in relation to adjacent rings. The bedplate 3 comprises upwardly projecting toothed knives or blades parallel with the roll axis.
Patent GB-354779-A (GB)
Abstract: 354,779. Regulating fluids. SCH€FER, J., 57, Rue Clisson, Paris. April 8, 1930, No. 11131. Convention date, April 8, 1929. [Class 135.] A device for controlling the flow of fuel from a reservoir to the float chamber of a carburetter comprises an airtight chamber a having an inlet e and an outlet f which is larger than the inlet. The fuel passes through the inlet e to a chamber m, from which the passage of fuel to the chamber a through orifices n‹ is controlled by a piston valve v in such a way that the effective area of the orifices increases as the pressure of fuel in the reservoir decreases. The orifices n<0> may be arranged as shown or in helical fashion, and the piston valve may have an orifice in its base through which fuel may pass when all the orifices n<0> are closed. The outlet from the chamber is always submerged and a quantity of air is trapped above the fuel. On a sudden increase in the demand for fuel and a consequent fall of pressure in the chamber, the action of the device is to retard the flow of fuel to the carburetter, and avoid the production of too rich a mixture. The fuel may float on water having a normal level x-x. A float g actuates a valve h to prevent access of water to the carburetter and a valve i which may be used to lower the level of the water.
Patent GB-165713-A (GB)
Title: A new or improved fabric
IPC: D04C5/02
Filed: 1920-12-18
Abstract: 165,713. Gillespie, T. H. Dec. 18, 1920. L a c e. - Fabrics suitable for use as towelling, hessian, rugs, table - cloths, blankets, &c. are produced on twist-lace machines provided with 'four fullvthreaded guide bars as follows. Assuming the carriages to be in the front combs, a warp bar carrying the threads b and situated adjacent to the front combs is shogged three gaits while the bar carrying the warps d is shogged one gait. The carriages then take the bobbin threads a to the back combs, after which the bars carrying the warps c, dare showed three gaits and one gait respectively and the carriages are returned to the front combs. In the next cycle of movements, the warps b, c shog back to their former positions while the warps d rise and fall one gait as before. The bar carry. ing the warps e remains stationary throughout. By this means the horizontal threads b, c are tied in groups of three by the pairs of threads a, d, and form vertical lines of loops which may be cut to produce various effects. The warps e lie under the threads b and over the threads c. Additional threads may be introduced for design or patterning purposes.
Patent GB-901748-A (GB)
Title: Metallisable azo-dyestuffs and process for their manufacture
IPC: C09B43/12
Filed: 1958-11-06
Abstract: 2-Amino-4-carboxy-5-hydroxyphenoxyacetic acid is made by reducing 5-carboxy-4-hydroxy-2-carboxymethoxy-1, 11-azobenzene-41-sulphonic acid.  It is a diazo component for metallisable azo dyes.ALSO:The invention comprises azo dyes which contain at least one grouping of formula <FORM:0901748/IV (b)/1> where <FORM:0901748/IV (b)/2> is the residue of a coupling component, and their metal complexes.  They are made by conventional diazotisation and coupling processes.  Mono-, dis- and poly-azo dyes may be made. Representative of specified coupling components for monoazo dyes are acetoacetylaminobenzene, 5-acetoacetylamino-2-phenol-1-carboxylic acid, 1-(3-sulphophenyl)-3-methyl-5-pyrazolone, resorcinol, 1-naphthol-4-sulphonic acid, 1-amino-7-naphthol and 2,4-dihydroxyquinoline and for dis- and poly-azo dyes are resorcinol, 2,5-dihydroxynaphthalene-7-sulphonic acid, 5,51-dihydroxy-[dinaphthyl-(2)-amino]-disulphonic acid (7,71), [5-hydroxy-7-sulphonapthyl-2(2- or 3)] ureas, 4,41-diaceto-acetylaminostilbene-2,21-disulphonic acid, 1,11-diphenylene-(4,41)- bis-(3-methyl-5- pyrazolene) -3,31-disulphonic acid, condensation products of cyanuric halides with coupling components containing an amino group and azo compounds obtained by diazotising an aryl azo or amino azo compound and coupling in an acid medium with an aminonaphthol sulphonic acid. Products containing an azo group may be diazotised and coupled with appropriate components or reacted with such reagents as cyanuric chloride or phosgene to produce dis- or poly-azo dyes.  Metallisation may be effected at the o-hydroxycarboxy or o-carboxymethoxy-o1-hydroxy azo group or at both groups. Metallisation may be performed in substance or on the fibre. Mixed metal complexes may be prepared.  Copper, nickel and cobalt chromium complexes are described.  The dyes colour animal, vegetable and synthetic fibres and anodically oxidised aluminium.  A great many examples are provided of the preparation of the dyes and their use, and the use of their metal complexes, in dyeing wool and cotton in a variety of shades.  5-Carboxy- 4-hydroxy- 3-carboxymethoxy-1-, 11-azobenzene-41-sulphonic acid is prepared by diazotising aniline-4-sulphonic acid and alkaline coupling with 4-carboxy-3-hydroxyphenoxy-acetic acid.  On reduction it provides the diazo component for the dyes containing the above grouping.
Patent GB-362655-A (GB)
Title: Improvements relating to lattice work structures
IPC: E04B1/58
Filed: 1930-11-27
Abstract: 362,655. Lattice work. HœNNEBECK, E.,'2, Preussenstrasse, H÷sel, Rhineland, and DEUTSCHE STAHL-LAMELLENGES, Weissenburgerstrasse, Dortmund, both in Germany. Nov. 27, 1930, No. 35759. [Class 45.] A latticework structure comprises a number of equally long, straight, flanged metal girders of similar form, so secured together at their interlocking extremities by bolts and gusset plates that the joint lies at the surface or surfaces at which maximum tension or compression occurs. The girders may be formed by bending metal strips to the required sections. According to one construction four girders 9, 10, 12, 13, Fig. 6, are bent into channel section from plates somewhat of the form shown in Fig. 1. These plates 1 are formed with slits 2, 3 and holes 4, 5, disposed as required, at their extremities to permit adjacent girders to overlap and to be secured together by bolts, which pass also through holes 11a in a gusset plate 11. The holes 4, 5 are preferably formed in bowl-shaped depressions in which sit the nuts of the securing bolts whereby the latter are relieved of any shearing stresses. The webs of the girders 12, 13 extend beyond the flanges and are secured together by bolts passing through holes 13a. The flanges of the girders 9, 10 extend beyond the webs and rest on the flanges of the girders 12, 13, to which they are secured by the connecting bolts. Other somewhat similar methods of overlapping and securing together the extremities of the girders are also described. In a modification, the flanges 18, Figs. 11 and 12, of the girders extend beyond the webs and are provided at their ends with projecting shoulders 19. Gusset plates 20, notched to receive the shoulders 19, are provided on both sides of the girder and receive bolts 21 by which the girders are secured together. The positions of the shoulders 19 are arranged to suit the particular radius of curvature of the vault in which the lattice work is provided. In a further modification the flanges of the girder are flush with the web and have welded or riveted thereto a strap on which is provided a shoulder in the form of an annular segment. The groove in the gusset plate 20 is circular whereby the girders may be free to move angularly with respect to each other.
Patent GB-1504715-A (GB)
Title: Sail setting and furling device
IPC: B63H9/10
Filed: 1975-09-01
Abstract: 1504715 Sail setting and furling device B E O EBBESON and B A WISJO 1 Sept 1975 [2 Sept 1974] 35997/75 Heading B7V A device for setting and furling a spinnaker on a boat 4, comprises an envelope of textile material, e.g. nylon fabric, which is securable to the top of a mast 3 and slippable over the said to adjust its effective area, the area bottom end of envelope being joined to a rigid outwardly flared member 12, e.g. of glass-fibre reinforced polyester resin. The envelope is raised and lowered by a halyard 18, 19, secured to the member 12 by a crowfoot 21, and passing through a hole 23 in a rigid upper member 13, e.g. of stainless steel. The envelope can be stiffened or reinforced adjacent the members 12 and 13. In Fig. 5, not shown, the upper and lower members (29) and (44) are clamped to the envelope (26) by members (31) and (45), respectively, and the envelope is folded back to seams (50), and (51) adjacent the members.
Patent GB-779011-A (GB)
Title: Improvements in or relating to anchor support systems
Inventor: FISCHER AUGUST
IPC: F16B13/00
Filed: 1953-12-29
Abstract: 779,011. Anchor-bolts. BECORIT-GRUBENAUSBAU GES. Dec. 29, 1953, No. 36051/53. Class 89 (1). An anchor-bolt is introduced into a bore having at its inner end an enlargement of short length which forms a shoulder facing the inner end of the bore, the bolt having lateral projections which bear on the shoulder to prevent its removal from the bore. The bolt has pivoted leaves 14, Fig. 7, which are spring- biased to open on reaching the enlargement 3, and to bear on the shoulder 4. The projecting end of the bolt is provided with a nut to position the bolt axially and to fix a support plate. As shown in Fig. 9, the bolt comprises parts 1a, 1b having enlarged ends 17, the total cross-section of which is greater than that of the bore 2 so that the end 17 of one part must be positioned in the enlargement before the other part is introduced into the bore. The parts are fastened together by a circular frame 20 and a wedge 21. A further wedge 23 permits the axial positioning of the bolt and the fixing of a support plate 24. In constructions of two-part bolts, the parts may be cemented together with synthetic resin, or electrically welded together. Cement may be fed to the bore to fill the space not occupied by the bolt.