baber/WOPTO huggingface dataset:
Patent GB-1253426-A (GB)
Title: Improvements relating to register control systems
Inventor: GOLD DANIEL
IPC: G05F1/10
Filed: 1969-04-17
Abstract: 1,253,426. Automatic registration control. CROSFIELD ELECTRONICS Ltd. April 13, 1970 [April 17, 1969], No. 19741/69. Heading G3R. Longitudinal registration of two operations performed on a web is automatically corrected in dependence on detected deviation of the distance between two marks printed on the web in positional correspondence with the operations, the first of the two marks detected being one which follows an absence of marks for a distance greater than that between the marks. In Fig. 1, if there is no mark on track 14 of a moving web 10 for a predetermined distance, the output of a photo-cell 16, amplified at A 1 , is zero long enough to allow the voltage of a Miller integrator M 1  to fall, at web speed to such a value that a bi-stable circuit B 1  is operated to condition a further bi-stable circuit B 2  so that the next registration mark 12b on the tape triggers a second Miller integrator M 2 . If the output of amplifier A 1  persists for a time longer than that corresponding to a mark of normal thickness, or if another mark occurs within too short a distance, then a transistor gate G 1  or G 2  is operated to re-set bi-stable circuit B 1 . Otherwise a gate G 3  is operated to render register circuits R effective to compute, from the outputs of photocells 16, 18, any error in spacing between registration marks 12a, 12b corresponding to different operations, e.g. colour prints, on the web. This error is corrected at RC, e.g. by adjusting the position of an intermediate roller between two printing cylinders to increase or decrease the path length. If there are more than two operations, a further mark corresponding to each additional operation is added ahead of the other marks so that it is one of the first two marks which effect control.
Patent GB-887961-A (GB)
Title: Chlorinated copolymers of ethylene
IPC: C08F8/20
Filed: 1960-06-03
Abstract: In a process for the production of chlorinated copolymers of ethylene copolymers of ethylene and isobutylene containing at least 5% by weight of isobutylene and having intrinsic viscosities in the range 0,2 to 0,6 measured in xylene at 100 DEG C. are chlorinated in solution in an inert solvent.  The copolymers may be prepared by free radical or ionic polymerization and examples describe the chlorination of copolymers prepared by polymerization in the presence of azodiisobutyronitrile in tertiary butanol. Specified inert solvents are carbon tetrachloride, chloroform, 1,2-dichloroethylene and 1,1,2-trichloroethylene.  Chlorination may be effected by chlorine or chlorine releasing substances, e.g. N-chlorobenzenesulphamide and N-chlorosuccinimide, optionally with hydrochloric acid absorbing substances, e.g. sodium carbonate, calcium carbonate, sodium bicarbonate and sodium acetate, in the presence of light or free radical catalysts, e.g. benzoyl peroxide, acetyl peroxide, di tertiary butyl peroxide, cumene hydroperoxide, p-menthane hydroperoxide and azodiisobutyronitrile.  The products may be recovered by precipitation with alcohols, e.g. methanol, ethanol and isopropanol, or by driving off the solvent by hot water or steam. The products may be stabilized, e.g. with sodium carbonate or phenoxy propene oxide, and compounded with conventional lacquer ingredients. Example 5 describes lacquers comprising (a) linseed oil modified alkyd resin, chlorinated copolymer, dibutyl phthalate, titanium dioxide and cobalt manganese naphthenate and (b) linseed oil modified alkyd resin, chlorinated copolymer, xylene, titanium dioxide and cobalt manganese naphthenate. Specifications 497,643, 810,023, 810,024, and U.S.A. Specification 2,334,195 are referred to.
Patent GB-1202857-A (GB)
Title: Stone-cutting machine employing disc saws
IPC: B23D47/10
Filed: 1969-04-17
Abstract: 1,202,857. Sawing stone. ATELIERS DE CONSTRUCTION DE COMPIEGNE. 17 April. 1969 [18 April, 1968], No. 19792/69. Heading B5L. A stone-cutting machine comprises a frame 1 having laterally-spaced arms 2, 3 extending from bearing mountings 14 to permit pivotal movement in a vertical plane, a cross-beam 5 joining the arms at points remote from the bearings, two disc saws 9 mounted on the frame on an axis parallel to the beam, two jacks 34, 35 supported on a base and acting on the frame in a manner enabling the beam and axis to be levelled by the jacks, and compensating means carried by the beam and responsive to departures of the beam from a horizontal disposition to cause actuation of the jacks to restore the beam to the horizontal position. The disc saws 9 are mounted on hubs 8a which are axially adjustable along a splined shaft 10 driven at each end by a motor 13 on an arm 2, 3. The hubs are carried by bearings 8 on supports 7 slidable along the beam 5 and a cross-member 6 extending between the arms. The jacks 34, 35 are connected between the arms and pivots 18 on each side of a track 57 along which a carriage 55 carrying a stone 56 to be cut is movable, the stone being adjustable about a vertical axis 59. The compensating means for maintaining the shaft 10 and beam 5 horizontal, and thus prevent twisting of the frame 1, consists of two mercury containers 20, 21 situated one at each end of the beam 5 and interconnected by a pipe 22. Electrodes 26, 27, 31, 32 co-operate with the mercury and actuate relays 29, 30 to control the supply of fluid to the jacks so that the beam 5 and shaft 10 are retained in horizontal positions. In another embodiment, the jacks are electro-mechanical.
Patent GB-348443-A (GB)
Title: Method of preserving meat in ice
IPC: A23B4/06
Filed: 1930-06-30
Abstract: 348,443. Cooling meat. ZIZLAVSKY, M., 1, Na porßzce, Brno, Czecho-Slovakia. June 30, 1930, No. 19826. [Class 29.] Pieces of frozen meat are packed between binding elements, e.g. rods of iron, wood, &c., in a box formed of slabs of ice, the interstices being filled with ice and water and the whole frozen into a solid block. The block may be protected by a cover 9 of paper, straw, &c., and its edges and corners by metal, wood, &c., reinforcement 10. The binding elements may be formed into a cage.
Patent GB-1089036-A (GB)
Title: Conveyor and spreader with displaceable top
IPC: A01C3/06
Filed: 1965-05-11
Abstract: 1,089,036. Manure spreaders. G. C. WOOD. May 11, 1965 [May 12, 1964], No. 19837/65. Heading A1D. A manure spreader comprises a rotatable beater unit mounted in a cylindrical container 11 which is formed with an upper portion 11b which can be moved out of the way to afford clearance for a loading means 20 which is used to fill the container 11. In a modification rails are provided in the ends of the container and the upper part is arranged to slide rearwardly.
Patent GB-256780-A (GB)
Title: Improvements in or relating to surgical appliances for treating fractured limbs
IPC: A61F5/058
Filed: 1925-08-07
Abstract: 256,780. Smith, S. Aug. 7, 1925. Tension apparatus.-An appliance for supporting a splint and applying tension to a limb consists of a number of telescopic frames 1, 3, 7, 10, the frame 1 having clamps 2 for attachment to the foot of a bedstead. The frame 3 carries a stirrup-like member 5 having clips 6 to support the outer end of a splint, and the frame 7 carries an adjustable pulley 8 over which passes a cord attached to the limb at one end and carrying a weight at the other. Instead of supporting the splint by the clips 6 it may be secured by a cord to the frame 10. In the treatment of a fractured hip the appliance may be clamped to a frame hinged at one of the posts at the foot of the bed so that traction may be applied in an angular direction.
Patent GB-856892-A (GB)
Title: Means for reducing the threshold of angular-modulation receivers
IPC: H03D3/00
Filed: 1958-06-20
Abstract: 856,892. Automatic selectivity control arrangements. COLLINS RADIO CO. June 20, 1958 [Nov. 14, 1957], No. 19875/58. Class 40(5). In a frequency or phase modulation receiver the I.F. bandwidth is reduced automatically when the signal to noise ratio becomes poor. The initial receiver circuits 11, Fig. 1, are followed by I.F. circuits 13 of variable bandwidth feeding limiter and detector circuits 21, 22 respectively. The signal carrier amplitude at the input to the limiter 21 is measured by amplitude detector 16, components of signal frequency removed by a filter 17, and the resultant voltage applied to control the bandwidth of circuit 13 via a shaping circuit 18. The shaping circuit 18 renders the control voltage non-linear so that the band width giving the optimum signal to noise ratio is obtained at every signal level. The amplitude detector 16 may alternatively be fed from a separate I.F. amplifier of fixed band width (Fig. 2, not shown) or the limiter itself may be used to provide a carrier-amplitude responsive voltage (Fig. 4, not shown). In an arrangement of this sort a number of cascaded limiters may be employed (Fig. 6, not shown) their outputs being combined so as to give a non-linear output of the desired law: one such arrangement (Fig. 7, not shown) comprises a number of grid-current limiters with their grid-leaks returned to a common resitor-condenser filter network. The voltage across this network is used to provide the automatic bandwidth control, being first shaped to the desired law by a network comprising a number of shunting resistors each in series with one of a number of progressively-biased diodes. Another arrangement comprises a series of cascaded limiters 88a, 88b, 88c, Fig. 15, each of which comprises a cathode-coupled pair coupled by a common inductance 112 and resistance 111. The voltage across each of the paired cathodes is applied over blocking condensers to one of a number of diode rectifiers D1-3. The D.C. outputs of the diodes are in series, the sum comprising the bandwidth-control voltage: the desired non-linear law is obtained by reversing the polarity of the diode D2. The variable bandwidth circuit may comprise (Fig. 5, not shown) a number of cascaded cathode-followers coupled by tuned circuits, the bandwidth being controlled by variation of the grid bias, which controls the mutual conductance; variable-mu tubes may be used. Alternatively (Fig. 3, not shown) variable resistors shunting tuned circuits may control the bandwidth, being driven by spring-biased motor controlled by the output of the amplitude detector. The Specification also describes a set-up for determining the optimum shape for the bandwidth (signal amplitude response Fig. 8, not shown).
Patent GB-1532873-A (GB)
Title: Torque controller
IPC: B25B23/14
Filed: 1976-05-14
Abstract: 1532873 Overload release couplings BRITOOL Ltd 9 May 1977 [14 May 1976] 19963/76 Heading F2C An overload release coupling unit for use as an accessory to a standard socket wrench set comprises sets of torque transmitting balls 20a, 20b carried by driving and driven discs 14, 18 which are urged towards each other by springs 21. On overload the driven disc 18 moves axially against the spring bias to permit the balls to ride over each other. The driving disc 14 is fast with a housing 11 having a square section socket 13 and the driven disc 18 is fast with a shaft 17 having a square section spigot 19. The torque at which the coupling slips may be adjusted by selecting the number of spring washers 21 as the thickness of plates 22 and further adjustment may be made by adjusting the position of a screw collar 23.
Patent GB-296818-A (GB)
Title: Improvements in or relating to electric telegraphy
IPC: H04L5/18
Filed: 1927-06-09
Abstract: 296,818. Beatty, W. E., (Bell Telephone Laboratories, Inc.). June 9, 1927. Divided on 296,811. Drawings to Specification. Type-printing telegraphs; distributor systems; eliminating effects of disturbing currents. - The matter described is identical with that described in Specification 296,811, but the claims relate to the use of a relay station (Fig. 2, not shown) whereby signals are amplified for one direction of working but are repeated without amplification when the direction of working is reversed. Specifications 258,614 and 274,871 also are referred to.
Patent GB-316755-A (GB)
Title: Improvements in or relating to strengthened glass and the like
IPC: B32B17/08
Filed: 1928-07-11
Abstract: 316,755. Chamberlain, J., and Periam, H. July 11, 1928. Compound transparent sheets. - A series of thin films of cellulose derivative is applied to one or both surfaces of a glass plate to form a con:pound transparent sheet. Each film is rendered flat by strickling and is partially or wholly dried before applying the succeeding one. A sheet of glass and one coated sheet or two sheets coated as above, with or without an intermediate sheet of cellulose derivative, may be united by omitting to dry or by retarding the drying of the last film and applying pressure, or by applying a solvent to the dried films. Amyl acetate may be used as solvent to delay drying of the last coating.
Patent GB-814825-A (GB)
Title: Improvements in or relating to tents and like structures
IPC: E04H15/32
Filed: 1956-06-29
Abstract: 814,825. Tent frames. LIDEN, O. G. A. June 29, 1956 [June 29, 1955], No. 20300/56. Class 20(1) A collapsible tent structure comprises rafter frames 15, Fig. 1 each pin &c. jointed on a pair of spaced legs 1 and held in position by their own weight and by the weight of the cover. The frames are then held apart by eaves tubes 4 fitting into sockets in the hinge fittings 2a 2b and by ridge-tubes 12, 17, 12 with pins 13 fitting into holes in projections 14 on the rafter frames. Different rafter frames are in Figs. 2, 3 and 5 (not shown). Corner and cross bracing (19 and 20 Fig. 3, not shown) may be provided. A washer 23, Fig. 4 prevents the lugs 1 from sinking too far in the ground. The tent cover can be unrolled from one end over the whole frame instead of pulling on. Two tents at right angles may be joined together by cover frames (Figs. 6 and 7, not shown) or three tents may be combined (Fig. 9 not shown). Fig 11 shows ridge parts which grip the roof covering 35 between them and all secured by pulling on a closure rops 40 (Fig. 13, not shown), Fig. 16 shows a section of a window 48 and the method of fixing its frame in the fabric.
Patent GB-1091149-A (GB)
Title: Control circuit for use in relating the frequency of a train of pulses to a reference time period
Inventor: BRANDRIFF ROBERT CLARENCE
IPC: D05B51/00
Filed: 1966-05-07
Abstract: 1,091,149. Frequency threshold circuit. SINGER CO. May 7, 1966, No. 20320/66. Heading G4P. [Also in Division D1] A logical circuit Fig 4, implemented by fluid-switching elements (Fig. 1, not shown), is such that on receipt of a pulse train a having a bit-period equal to two delays 40, 54, no output f is produced (Fig. 2A, not shown), but with an input pulse train of lower (Fig. 2B, not shown) or higher (Fig. 2C, not shown) frequency an output f is produced. As described the circuit is used to indicate whether yarn (Fig. 1, not shown) is being fed at the correct speed to a sewing machine.
Patent GB-404939-A (GB)
Title: Improved method of treating tar for road purposes
IPC: C08K5/098
Filed: 1932-07-18
Abstract: Tar compositions including material of the nature of or containing coal tar pitch and adapted to be applied in hot or molten condition for road or roof surfaces &c. are formed substantially free from water and contain salts of aliphatic monocarboxylic acids of high molecular weight.  In an example dry tar which has been topped at about 250 DEG  C. is mixed preferably at 200 DEG -250 DEG  C. with 1-2 per cent by weight of sodium or calcium stearate, palmitate, or oleate.  A mixture of salts or of the acid and an alkali or salt adapted to react with the acid may be used. In general the amount of salt used is below 5 per cent.
Patent GB-1513744-A (GB)
Title: Method for generating hydrogen
IPC: C01B3/06
Filed: 1975-05-14
Abstract: 1513744 Hydrogen S L LEACH 14 May 1975 [4 Nov 1974] 20328/75 Heading CIA [Also in Division Fl] H 2  is generated from water by heating a reactant comprising a metal or oxide thereof capable of displacing H 2  from water exothermically to form an oxide of said metal at a higher oxidation number, said metal oxide of higher oxidation number being capable of disassociation or disproportionation spontaneously in the absence of free O 2 , continuously passing steam over the reactant and continuously removing H 2  generated, raising the temperature of the metal oxide of higher oxidation number thus formed to a temperature at which it disassociates or disproportionates to thereby reform the metal or oxide thereof and O 2 , removing said O 2  and then repeating the passage of the steam over the heated reactant. The cycle may be repeated ad infinitum. The reactant is monitored, e.g. by measurement of its electric resistance determined when the conversion of metal or oxide thereof to higher metal oxide has reached a predetermined percentage, usually 80%, at which point passage of steam is discontinued and is similarly monitored during the heating to determine when conversion of the higher metal oxide back to metal or oxide thereof has been completed. The reactant which is preferably Fe, Mn or an alloy of Fe and Mn may be in the form of a mesh, continuous thread, or ribbon which is heated by passage of an electric current therethrough or in the form of particles which is heated by an element embedded therein. The process is preferably carried out in a plurality of reaction chambers containing the reactant, wherein H 2  is generated in half the chambers and the reactant is regenerated simultaneously in the other half, and intermittently the regeneration is performed in the first half and the H 2  generation in the second half, this cycle being repeated. Details of suitable apparatuses are given.
Patent GB-1020589-A (GB)
Title: Improvements in and relating to circuit arrangements for checking a direct voltage supply source
IPC: G01R31/36
Filed: 1963-05-22
Abstract: 1,020,589. Voltage measurement. PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd. May 22, 1963 [May 25, 1962], No. 20382/63. Heading G1U. In a circuit arrangement for checking the voltage of a D.C. source with the aid of an incadescent lamp, the lamp is included in the collector circuit of a transistor fed by the D.C. source, the base of the transistor being polarized in the forward direction by the D.C. source through at least one voltage-reducing element so that the light emitted by the lamp can be made to decrease rapidly with a small decrease of the voltageof the D.C. source. In Fig. 2 the battery 1 may be tested by closing switches 3 and 6 to connect lamp 4 in series with transistor 8 across the battery terminals, the base of the transistor being biassed by resistances 5 and 7. The lamp will not light if the collector current is less than 30mA, which with suitable values of the resistances may correspond to the battery having 80% of its nominal voltage. In an alternative circuit, Fig. 3 (not shown), resistance 7 is omitted and a Zener diode is connected between resistance 5 and the base of the transistor. The lamp may then extinguish at 93% of the nominal voltage, or at 99% if the resistance 5 is omitted. The battery may be a 6 volt battery supplying a portable transistor radio receiver 2.
Patent GB-583354-A (GB)
Title: Improvements connected with garment hangers and the like
IPC: A47G25/40
Filed: 1944-10-21
Abstract: 583,354. Garment hangers. ELSTON, E. P. Oct. 21, 1944, No. 20418. [Class 52 (v)] A garment hanger comprises two arms 4. 5 pivoted to a central plate 6 which is provided with a hook 7 capable of rotation about a vertical axis, the arms being of U-shaped crosssection, and the opposite ends of the arms being joined together pivotally, by a strut comprising two hinged parts 8, 9. The arms 4, 5 may have recesses 12, 13 and the strut 8, 9 may have projections 14, 15 and a hook 11 for suspending extra garments. The hanger in folding enables the strut portion 8, 9 to be accommodated between the arms 4, 5 as shown in Fig. 2.
Patent GB-608606-A (GB)
Title: Improvements relating to the recovery by distillation of cyclohexane from hydrocarbon mixtures
IPC: C07C13/18
Filed: 1945-08-09
Abstract: Cyclohexane is recovered from naphtha fractions free from olefines and containing cyclohexane, benzene, and paraffins (mainly 2.2- and 2.4-dimethyl pentane) the benzene being present in insufficient quantity to form azoetropes with the whole of the paraffinic constituents, by fractionally distilling the mixture to recover overhead a fraction containing <PICT:0608606/III/1> all the benzene and part of the paraffins and leaving as bottoms the cyclohexane and the remaining paraffins, and subjecting the bottoms to extractive distillation in presence of a polar solvent having affinity for cyclohexane so as to yield a paraffinic overhead and a bottoms comprising cyclohexane and solvent from which the cyclohexane is recovered.  Polar solvents specified are aniline, phenol, nitrobenzene, and glycerol ethers or esters.  The first overhead fraction containing methylcyclopentane may be subjected to isomerisation to convert the methylcyclopentane to hexane.  In example, an Iranian isoheptane fraction of boiling range 68 DEG -90 DEG  C. is preliminarily fractionated in column a to remove a fraction of boiling range 68 DEG -81 DEG  C.  This fraction is refractionated in column b to recover overhead a fraction of boiling range 68-77 DEG  C. leaving as bottoms a 77 DEG -81 DEG  C. fraction comprising a binary mixture of cyclohexane and paraffins which is subjected to extractive distillation in column c in presence of one of the solvents specified above to leave a residue of cyclohexane and solvent which is passed to column d to separate solvent and cyclohexane.  Specifications 585,850 and 606,797 are referred to.
Patent GB-854681-A (GB)
Title: Improvements in feeding mechanism for extruders for plastic materials
IPC: B29C48/08
Filed: 1957-06-28
Abstract: 854,681. Extruders. UNITED STATES RUBBER CO. June 28, 1957 [Aug. 29, 1956], No. 20476/57. Class 87(2). The apparatus shown in Figs. 1 to 6 of Specification 770,705 is modified in that the axes of the springs 91 are in line with the movement of the plunger 88. Furthermore the narrower sides of the slot 109 in the plunger are inclined rearwardly, Fig. 3 (not shown), so as to distribute the material more evenly. The springs 91 are spaced at their upper ends from an arm 92 which has a pair of prongs 103 held in slots 101 by screws 104. A plate 95 limits downward movement of the plunger 88.
Patent GB-597189-A (GB)
Title: Parking stand for perambulators
IPC: B62B9/08
Filed: 1945-08-11
Abstract: 597,189. Vehicle stands. WIDDOP, G. A. Aug. 11, 1945, No. 20657. [Class 79 (iii)] A parking device or stand for a perambulator comprises four legs A or struts each pivoted to a wheel axle and interconnected by links C for simultaneous movement by a link E and lever D. The lever D works in a quadrant F and operation of the lever either lowers the legs into contact with the ground to raise the perambulator wheels from off the ground or retracts the legs to allow the perambulator to be wheeled.