baber/WOPTO huggingface dataset:
Patent GB-162019-A (GB)
Title: Improvements in devices for electrically measuring the lengths of electric cables
IPC: G01R17/10
Filed: 1919-12-03
Abstract: 162,019. Benson, W. E., and Callender's Cable & Construction Co., Ltd. Dec. 3, 1919. Measuring.-The length of an electric cable 1 is measured by means of a Wheatstone bridge, the resistance in the arm 6 being so chosen that the null position of the sliding contact 10 on a scale gives the length directly. Any one of a number of resistances 3, 4, 5, &c. may be plugged in the arm 6 according to the type of cable to be measured. To locate a fault the sheath 14 is connected to the socket 2 by a switch 13. The bridge wire 9 is preferably wound on a cylinder. The apparatus may be enclosed in a box having a galvanometer mounted on its face and a window for observing the scale.
Patent GB-852322-A (GB)
Title: Improvements in and relating to linear array aerials
Inventor: DUCKWORTH GEORGE
IPC: H01Q21/00
Filed: 1955-10-21
Abstract: 852,322. Aerials. KELVIN & HUGHES Ltd. Jan. 21, 1957 [Oct. 21, 1955], No. 30205/55. Drawings to Specification. Class 40(7). A non-resonant aerial comprising a waveguide with spaced slot or dipole radiators along its length is terminated by a partially reflecting termination or such magnitude and phase of reflection coefficient that the variation of standing wave ratio from one to another of the portions separating the radiators is less than when the termination is fully absorbing. In one embodiment the termination comprises an adjustable peg entering the guide followed by a tapered wedge of a ferrite of such dimensions that it would normally constitute a fully absorbing load, Fig. 2 (not shown).
Patent GB-206016-A (GB)
Title: New or improved coin sorting or separating apparatus
IPC: G07D3/10
Filed: 1922-11-06
Abstract: 206,016. Jones, B. Nov. 6, 1922. Coins and the like, separating and sorting.-A coin sorting device comprises sets B, B' of sloping trays, fixed in a frame. Each set comprises trays b, b<1> ... , each tray being formed with apertures through which coins fed from a hopper may pass, the uppermost tray b passing all coins smaller than half-crowns, the next tray b<1> passing all but florins, and so on. The coins slide by gravity and on reaching the end of a tray drop to the top end of a corresponding tray of the next set, each set being at right-angles to the preceding set. The coins slide from the trays of the last set into receptacles D, D<1> ... To deaden sound, the interior walls of the frame may be lined with felt.
Patent GB-906648-A (GB)
Title: Improvements in and relating to steering devices, more particularly for motor vehicles
IPC: B62D7/22
Filed: 1959-09-04
Abstract: 906,648. Valves. ZAHNRADFABRIK FRIEDRICHSHAFEN A.G. Sept. 4, 1959 [Sept. 17, 1958], No. 30296/59. Class 135. [Also in Group XXXI] A piston 2, Fig. 5, in a steering mechanism (see Group XXXI) has a pair of flexible annular packings 97, 98 at opposite ends of a duct 112 permitting free oil flow through the piston. When a road shock occurs increased oil pressure closes the inner lip of one of the packings against a cylindrical surface on a member 91 to close the duct 112. The movement of the piston is thus impeded to prevent the road shock reaching the steering column. A spillway 115 allows the pressures on opposite sides of the pistons to be equalized. Fig. 6 shows an alternative arrangement in which a spring-centred shuttle valve 120 with a spillway 145 controls ducts 140, 141 or 140<SP>1</SP>, 141<SP>1</SP> between the two sides of the piston. In a third arrangement, a shuttle valve with end closure faces is employed.
Patent GB-695532-A (GB)
Title: Improvements in or relating to rubber reinforced with carbon black
IPC: C08K5/14
Filed: 1951-12-28
Abstract: In making products of low torsional hysteresis and high electrical resistivity from mixtures of synthetic conjugated diene rubbers with rubber-reinforcing carbon black, an organic peroxide is incorporated into the mixture at a temperature insufficiently high to decompose the peroxide, the mixture so obtained is heated at a temperature sufficiently high to decompose the peroxide but insufficiently high to impair the properties of the rubber, and the heating is continued for a period long enough for diminution of the torsional hysteresis and increase of electrical resistivity of a vulcanizate of the mixture.  The rubbers are those produced by polymerization of one or a mixture of butadiene-1,3 hydrocarbons, e.g. butadiene-1,3, isoprene, piperylene, or by copolymerization of such butadiene hydrocarbons with styrene, methyl acrylate, methyl methacrylate, acrylonitrile, or vinyl pyridine; in examples there are employed "Cold" and standard GR-S (copolymers of 70-80 per cent butadiene and 30-20 per cent styrene), an isoprene-styrene elastomeric copolymer, and a copolymer of 75 per cent butadiene and 25 per cent acrylonitrile. Preferred organic peroxides are cumene hydroperoxide, tertiary butyl peroxybenzoate, 2,2-bis-(tertiary-butylperoxy)butane, p-methyl-a ,a -dimethylbenzyl hydrogen peroxide, diisopropylbenzene hydroperoxide.  Reference is made to U.S.A. Specification 2,118,601, wherein torsional hysteresis and the measurement thereof are described.ALSO:In making rubber products of low torsional hysteresis and high electrical resistivity, an organic peroxide is incorporated into a mixture of rubber and reinforcing carbon black at a temperature insufficiently high to decompose the peroxide, the mixture so obtained is heated at a temperature sufficiently high to decompose the peroxide but insufficiently high to impair the properties of the rubber, and the heating is continued for a period long enough for diminution of the torsional hysteresis and increase of electrical resistivity of a vulcanizate of the mixture.  The heating may be at 250-325 DEG  F. and may be effected by mastication of the mixture.  There may be 25-100 parts of carbon black per 100 parts of the rubber.  The preferred peroxides are cumene hydroperoxide, tertiary butyl peroxybenzoate, 2,2-bis-(tertiary-butylperoxy) butane, p-methyl-a , a -dimethylbenzyl hydrogen peroxide, diisopropybenzene hydroperoxide.  The peroxide may be used in amount sufficient to supply 0.02-0.4 parts of active oxygen per 100 parts of rubber. Reference is made to U.S.A. Specification 2,118,601, wherein torsional hysteresis and the measurement thereof are described.
Patent GB-1259994-A (GB)
Title: Potentiometer structure
IPC: H01C10/20
Filed: 1969-06-16
Abstract: 1,259,994. Resistors. MARKITE CORP. 16 June, 1969 [26 June, 1968], No. 30322/69. Heading HIS. A variable resistor has a rotatable shaft located around which is a substrate carrying a resistance track positioned concentrically with the shaft, the substrate being held relatively to the shaft between a pair of clamping end members applying an axial force to the substrate. In Fig. 2 a plurality of brush assemblies 30 are assembled on a rotatable shaft 40, each having a brush 36, associated with the resistance track 14 of a respective resistance element 10. The brush is located on an arm 35 connected to a slip ring 37. A hairpin wiper 37<SP>1</SP> connected to a terminal 41 contacts the slip-ring. Each resistance element comprises a conductive plastics track on a substrate (12) with terminals 16. The substrates are held in position on the shaft by means of a spring 43 and end members 42, 42<SP>1</SP> acting through axial spacers 20. In Fig. 5 a potentiometer 100 comprises a single resistance element with a resistance track 118 formed on a substrate 120, held in position by end members 126, 132 after adjustment of screw 136. The resistance track may extend from outside the substrate or from its periphery, inwards, such that parts of it may be removed or possibly conductive material added, to effect its calibration, after assembly of the potentiometer. A drill may be used for removing part of the track, the hole then being filled up with a sealant. The other side of the insulator substrates may have one or more trimming resistors, Fig. 4 (not shown).
Patent GB-837472-A (GB)
Title: Process of dyeing structures of cellulose acetate
IPC: C09B29/033
Filed: 1956-06-13
Abstract: Structures such as fibres, flocks, threads, foils, woven and knitted fabrics and other materials, such as felts and bonded fabrics of cellulose acetate are coloured with a dyestuff salt free from sulphonic acid groups the cation of which has the formula <FORM:0837472/IV(c)/1> p  where Q is an alkyl, aralkyl or cycloalkyl radicle, n is 0 or 1, X is a divalent atom or group which makes the heterocyclic ring into a five- or six-membered ring, R is an o- or p-phenylene or -naphthalene group and Y and Z are H, or possibly substituted, alkyl, aralkyl, cycloalkyl or aryl radicles or together with N form a heterocyclic ring which may be substituted.  The dyes are made by conventional methods by coupling an appropriate diazotized amine containing X with the required R component or by condensing the X amine with a nitroso derivative of the R component the dye obtained in each case being alkylated.  Some of the triazole dyestuff salts may be made as in Specification 837,471.  Red, violet, blue or bluegreen dyeings are obtained by usual padding and printing processes.  Indicated heterocyclic rings in components containing X are thiazole, oxazole, imidazole, selenazole, thiodiazole, triazole, pyridine, pyrimidine and indole rings, Preferably Y and Z are the same.  The dyed structures may be treated with known finishing agents such as tannin and tartar emetic.  Examples are provided of the dyeing of acetyl and triacetyl cellulose and the printing of acetate with fabrics.  Additional agents present during the dyeing processes are acetic acid, a condensation product of ethylene oxide and colophony and dimethyl phthalate and additional agents present in the dye paste used in printing process are thiodiethylene glycol, cyclohexanol, acetic acid, crystal gum and resorcinol. Specifications 786,929, 787,369, 791,932 and 793,587 also are referred to.
Patent GB-210544-A (GB)
Title: Improvements in or relating to change-giving cash registers and like machines
IPC: G07D1/00
Filed: 1922-11-07
Abstract: 210,544. Hutchins, T. D. Nov. 7, 1922. Money - delivering apparatus.-Improvements in change-giving machines of the type described in Specification 182,834 in which a perforated disc is first rotated in one direction to an extent corresponding to the amount tendered and then reversed to an extent corresponding to the amount to be deducted, spring- pressed pins actuating the change-giving slides, comprise a nut 112 adapted to receive a graduated tape 115 from a spring box 123 and restrained against rotary movement and carried on a threaded spindle 110 meshing through a pinion 1<a> with the main disc 1. The actuation of a purchase lever 32 raises stop devices 32<a> into the path of the nut 112, the swell 32<c> engaging the upper arm of a rocking-member 116, the lower arm of which engages the tail of a pawl 119 lifting it out of engagement with the ratchet wheel 121, the step 32d on the stop device being held by the edge of the upper arm of the rocking-member restrained in an upward direction by a pin 60<a> on a rod 60 held by a spring 122. The main disc is then free to reverse until the nut 112 meets the particular stop 32<a> thrown in its path. The points 32<b> of the stop devices indicate the amount of the sale on the tape 115. In another form of stop device a toothed strip is used in place of the ratchet wheel 121. Means for deducting a half-penny comprise a half-penny lever 32<a1> connected by a rod 124 with a cranked rod 125, the other cranked end of which engages the pin 126 on the bearing of the lever 68. Fig. 1. The bearing 126 is moved by the operation of the lever 32<a1>, and the connecting-rod 124<a> lifts the lever 47, freeing the half-penny slide, a pawl 124<b> holding the mechanism in this position until the opening of the change drawer. Means to prevent overthrow of the main disc comprises a series of studs on the main disc adapted to be engaged by a detent normally spring-pressed into the path of the studs, the tail end of the pawl being engaged by a cam on the coin-receiving disc which lifts the detent from engagement with the studs until the pinions have passed out of mesh. If a ú 1 or 10/- note is tendered, the disc 1 is turned through a complete revolution, the tape in each case displaying 10/-, but in the case of a ú1 disc being inserted the 10/- change-slide is freed by a tappet on the shaft 2 operated by a pin on the disc 7, the tappet being rocked to lift the lever 47, the change-slide remaining free until a further amount is recorded on the tape.
Patent GB-215030-A (GB)
Title: Improvements in water tube boilers
IPC: F22B17/02
Filed: 1922-11-08
Abstract: 215,030. Crowther, A. W. Nov. 8, 1922. Water-tube boilers.-To prevent the accumulation of ash and the formation of gas pockets, the baffles A in a boiler of the Babcock and Wilcox type are arranged across the lower rear ends of the top line of water tubes and have apertures a. and baffles A<1> having apertures a' are arranged across the top line of tubes in front of the central support b.
Patent GB-210547-A (GB)
Title: Improvements in twist-lace machines of the rolling-locker type
IPC: D04G1/00
Filed: 1922-11-09
Abstract: 210,547. Jardine, Sir E., and Montgomery, H. Nov. 9, 1922. Lace machines -The outer rolling lockers E of twist lace machines such as are used for making traverse net are so actuated that the two tiers of carriages approach each other in their extreme front and rear positions and separate in intermediate positions. This enables shorter combs to be used and affords more time for shogging the comb bars. The inner. rollers A are driven, as usual, by an oscillating wheel B with gear teeth meshing with pinions A<1>. The outer rollers E carry pinions which mesh with toothed sectors F pivoted at F<1> and carrying axles G provided with antifriction rollers which engage in cam races H in the wheel B. The axles F<1> are carried by members J secured at two points K<1>, K<2> to the front and back comb-bar cradles K, Fig. 5, which when drawn out take the corresponding rollers A, E and sectors F with them. the cam race H being shaped at the lower end to permit of this. The draw-out shaft L for the front comb bar cradle is connected thereto by links with a. lost motion, and is also connected directly by means of an arm N and a link N<1> to a forked lever 0 which embraces a stud F<2> on the sector F when the carriages are in the front comb bar. By giving the shaft L an initial movement the lever 0 is caused to turn the sector F and the front roller E, thereby moving the front tier of carriages sufficiently to effect their entire release. By giving the shaft L a further movement, the carriages being in the back comb bar, the front comb bar is drawn out. The back tier of carriages can be released bv similar mechanism when in the back comb bar. The carriage transfer or turn-again mechanism consists of a short roller section P mounted loosely near the end of one roller A and connected to a pinion P<1> which is geared by an intermediate wheel R' to a pinion Q fixed to the main roller A. The wheel R' is connected to a wheel R with teeth on one-half of the circumference only. The other half R<2> is plain and reduced in width and co-operates with the loose pinion P<1> which has half of every alternate tooth cut away to form gaps <p2> into which the part R<2> can enter to arrest the movement of the pinion P<1>. When a carriage is to be transferred from one tier to t'he other the wheels R, R' are moved longitudinally to bring the wheel R into gear with the pinion P<1>, the wheel R<1> remaining in mesh with the pinion Q. The loose roller section P is thus driven by the wheel R until the part R<2> enters a gap P<2> and stops the pinion P' which is thus held from movement until the toothed part of the wheel R comes round. This holds the carriage on the section P stationary for the period necessary to transfer it from one tier to the other. The apparatus is duplicated; at one end of the machine it may be allowed to come into action at each revolution of the main shaft, while at the other end it is brought into action at longer intervals, say, at every third revolution.
Patent GB-410088-A (GB)
Title: Improvements in or relating to methods for the preparation of substituted thiazoles or selenazoles
IPC: C07D277/64
Filed: 1932-10-31
Abstract: Substituted thiazoles and selenazoles are prepared from o-nitrohalogenaryls wherein no substituent is present in position oto the halogen atom, by converting such bodies to an o-dinitrodiaryldisulphide (or diselenide), reducing this product by treating first with an alkali sulphide and then with an alkali hydrosulphite and finally reacting the reduction product with a reagent such as an acyl halide or an organic acid or anhydride to form the substituted thiazole.  In examples 4-brom-5-nitroveratrole is heated with polysulphide solution to give 2 . 2<1> - dinitro - 4 . 5 : 4<1> . 5<1> - tetramethoxydiphenyl disulphide, this product was then reduced by heating with sodium sulphide followed by addition of sodium hydrosulphite to complete reduction and the o-aminothiophenol derivative condensed with acetic anhydride to give 1-methyl-4 : 5-dimethoxy-benzthiazole.  In similar manner o-chloronitrobenzene is converted to 1-methylbenzthiazole, 4-bromo-5-nitrocatechol methylene ether (prepared by nitrating bromopiperonal) to 1-methyl-4 . 5 - dioxymethylenebenzthiazole, 4 - bromo - 3 - nitro - N - dimethylaniline to 1 - methyl - 4 - dimethylaminobenzthiazole, and 3 - nitro - 4 - bromo - N - diethylaniline to 1 - methyl - 4 - diethylaminobenzthiazole.  In a further example 4 - bromo - 5 - nitrocatechol methylene ether is treated with sodium selenide and powdered selenium, the diselenide so obtained is reduced with sodium sulphide followed by sodium hydrosulphite and the product condensed with acetic anhydride to give 1-methyl-4.5-dioxy-methylenebenzselenazole.  By using in these examples propionic or other anhydride or benzoic or other anhydride in place of acetic anhydride, 1-ethyl &c. or 1-phenyl &c. substituted bodies are obtained.  Reference is made in the Provisional Specification to the use as starting materials of 6-bromo-5-nitroveratrol, 3 - bromo - 4 - nitro - 1 - ethoxynaphthalene, 9 - bromo - 10 - nitrophenanthrene, 4 - bromo - 5 - nitroacenaphthene.  The products are of use in the manufacture of cyanine or carbocyanine dyes.  The prior art in Specification 388,204, J. American Chem. Socy., 49, page 1749 et seq, and Berichte 46, page 93 et seq is referred to.
Patent GB-505366-A (GB)
Title: Device for the starting of multi-cylinder internal combustion engines
IPC: F01L13/00
Filed: 1937-11-09
Abstract: 505,366. Starting; turning - gear. HEYWOOD, C. F. Nov. 9, 1937, No. 30723. Convention date, Nov. 17, 1936. [Class 7 (v)] For turning over and starting a multicylinder engine, a rotary engine-driven distributer directs compressed air in succession to each cylinder in which the piston is on the expansion stroke ; if no piston is initially in a suitable position for starting a smaller passage in the distributor directs compressed air to a cylinder in which the piston is on the compression stroke, whereby the engine is turned backwards into a position in which starting can be effected by the compressed air. Fluid-actuated decompressing members on each cylinder are supplied with starting fluid from the distributer by a valve adapted to cut off the supply after a predetermined time interval. As shown, the rotary disc 10<1> of the distributer 10 has a port 19 communicating in turn with conduits 11 . . . 14 leading to starting valves 7 on the engine cylinders 1<1>. . . 4<1>, whereby compressed air is directed to each cylinder when the piston therein is on the expansion stroke. A smaller port 18, or a narrow extension of the port 19, serves to supply air to a cylinder on the compression stroke in positions in which the port 19 is shut off from the conduits 11 . . . 14. In order to relieve compression during starting by opening the valves 7 in those cylinders in which the piston is on the compression stroke, brunches 103, 201, 304, 402 from the conduits 11 . . . 14 convey compressed air to act on pistons 8 on the valves 7, which are moved into a position in which a relief port 16 is opened. The branches 103 &c. are controlled by grooves 41 in an automatic valve 9, Fig. 13, which is moved axially, after a lapse of time determined by a restricted compressed-air inlet 38, into a position in which the branches 103 &c. are cut off from the compressed-air conduits 12 &c. and connected to the atmosphere through grooves 40 in the valve, so that the valves 7 are no longer opened to relieve compression. In a modification of the distributer, Fig. 12, the distributer port 33, serving to supply compressed fluid to a cylinder on the compression stroke, is supplied with carburetted air, a fuel nozzle 27 being arranged in a central opening 30 leading from a compressedair chamber 28 to the port 33. Turning-gear.-An auxiliary device for moving the engine over a, dead-centre at starting consists of a pawl 48, Fig. 14, pivoted on the rod 47 of a piston 46 and adapted to engage a tooth 49 of the engine flywheel 17. The piston 46 is actuated by compressed air from the pipe 42 by way of a passage 45, and at the end of its stroke the piston uncovers a port 51 behind a piston 52, which opens a valve 43 admitting the compressed air to a pipe 29 leading to the distributer. In order to withdraw the pawl 48 during the return stroke effected by a spring 50, spring pins 57 carried by the pawl enter slots 59 in the tube 56.
Patent GB-519404-A (GB)
Title: Resilient fastening device for bearings particularly for balance-staffs of watches
IPC: G04B31/04
Filed: 1938-10-24
Abstract: 519,404. Spring mounts. MARTI, F. Oct. 24, 1938, No. 30724. Convention date, Nov. 8, 1937. [Class 12 (i)] In a jewel bearing, particularly for watch balance staffs 4, a spring 9 for resiliently pressing the cap-jewel 3 into position is connected to two sides of a support 6, one end 12 of the spring being hinged to the support and the other end 13, 131 being removably secured by means of its own resiliency. An integral annulus 8 of support 6 is slotted, at 15 and has undercut cross-slots 14, 14<1> which receive the T-end 12 of a flat spring 9.. The latter has arms 11, 11<1> pressing on the cap-jewel 3 and free ends 13, 13<1> which are sprung together and pressed down into undercut radial grooves 16,16<1> formed by the edges 18, 18<1> of the,gap 17 in the annulus 8.
Patent GB-539223-A (GB)
Title: Improvements in or relating to clutches
IPC: F16D15/00
Filed: 1939-11-24
Abstract: 539,223. Gun-sight mountings. LEPETIT, A. E. M. Nov. 24, 1939, No. 30756. Convention date, Jan. 16. [Class 92 (ii)] [Also in Groups XXV and XXII] A pivotal mounting for e.g. the sighting apparatus of a gun, comprises a lower plate 1 fixed to the gun carriage and having a ring of balls 6 fixed in an annular groove 3 while the upper plate 2 with a similar set of balls 5 in a groove 4 is fixed to the sighting apparatus to be pivotally adjusted. Each ball 5 has two-point contact with a pair of balls 6, as shown in Fig. 2, so that when the plate 2 is rotated for adjusting the sight, the balls 5 ride over the balls 6 into a new position. In another form, one or more intermediate plates are interposed coaxially between the plates 1, 2, each such plates having two rings of balls fixed to opposite sides, one ring facing plate 1, the other facing plate 2, the balls in each ring being of the same size as those they engage on the adjacent plate but the sizes of the balls on non-adjacent surfaces differing from one another. Apparatus for fixing the balls in the plates comprise a table 35 supporting the plate 1, a pressing plate 32 balljointed to a platen 33 and engaging the balls 6, and blocks 36 for circuiting the downward movement of the plate 32.