baber/WOPTO huggingface dataset:
Patent GB-322211-A (GB)
Title: Improved haulage system having vehicles with road wheels running on metalled road but guided by a guide rail
IPC: B61F9/00
Filed: 1928-08-27
Abstract: 322,211. Skelton, C. Aug. 27, 1928. Wheel tracks. - A railway system of the hind in which the weight of the vehicles is carried on road wheels running on a road surface and guiding is effected by means of a central guiding rail having movable points at junctions, is provided with subsidiary guides at sharp curves or where points or switches occur. In the construction shown, the vehicle runs on wheels c engaging a road surface l and is guided by a pair of rotary pins d, Fig. 3, or a roller d<1>, Fig. 6, engaging a central rail a. A sliding switch h is. provided at the junction shown in Fig. 1, and the subsidiary guides comprise troughs f for the wheels to run in, guard rails g for the pins d engaging the guide rail, and guard rails g<1>, g<2> for the outer wheels. Instead of the rail a, a slot may be used.. To allow carts &c. to cross the guide rail, this may be provided with guard or check rails and short ramps, as shown in Fig. 3. The road surface d may be of ordinary road metal or a flat iron plate may be used for each road-wheel track, the two plates being held to gauge by tie-bars fixed to wooden blocks on which the guide rail is laid.
Patent GB-280007-A (GB)
Title: Improvements in electrical fuse blocks
IPC: H01H85/20
Filed: 1926-10-05
Abstract: 280,007. Brown, G. R. Oct. 5, 1926, Fusible cut-outs. - A fuse carrier 23 carries contacts 15. 16 and a central spigot 25 over which the fuse wire 19 passes, the base 1 having three chambers 20, 21, 22 to receive the contacts and spigot of the carrier. The fuse wire passes through recesses 30, 31 in the carrier covered by an inspection plug 26 having a resiliant split pin 24 that fits a socket 27. The contacts 15, 16 comprise internally screwed tubes secured bv screws to the carrier, and adapted to engage resilient contacts 13, 14 in the chambers 20, 21.
Patent GB-833183-A (GB)
Title: Improvements in or relating to cyclopentanophenanthrene compounds
IPC: C07J1/00
Filed: 1958-07-31
Abstract: The invention comprises 19-nor- D 5,7-androstadiene-3b ,17b -diol and the 3b ,17b -diesters thereof derived from carboxylic acids, 3b ,17b -diacetoxy - 19 - nor - D 3,5,7 - androstatriene, 17b  - acetoxy - 19 - nor - D 4,6 - androstadiene-3-one and the acetate of 6-bromo-19-nortestosterone, and a process for the preparation of 19 - nor - D 5,7 - androstadiene - 3b ,17b  - diol which may commence at any stage in the following synthesis: 19 - nortestosterone is acetylated to form 3b ,17b -diacetoxy-19-nor-D 3,5-androstadiene, this compound is brominated with a mixture of bromine, acetic acid and collidine to form the acetate of 6-bromo-19-nortestosterone, this compound is dehydrobrominated with a mixture of lithium bromide and lithium carbonate in dimethyl formamide to form 17b -acetoxy-19-nor- D 4,6 - androstadiene-3-one, this compound is acetylated to give 3b ,17b  - diacetoxy - 19 - nor - D 3,5,7 androstadiene which is then reduced with an alkali metal borohydride.  The 3b ,17b -diesters such as the diacetate, dibenzoate, and the bis(3,5-dinitrobenzoate), are formed from 19-norD 5,7 - androstadiene - 3b ,17b  - diol by normal esterification methods.  Detailed examples are given.
Patent GB-1435937-A (GB)
Title: Electrical relay
IPC: H01H50/04
Filed: 1973-05-24
Abstract: 1435937 Electromagnetic relays TRW Inc 24 May 1973 [24 May 1972] 24837/73 Heading H1N An electrical relay has a one-piece frame of insulating material comprising a coil-supporting tube with a transverse flange 14 at its one end and a transverse base 12 at its other end, this frame supporting a one-piece ferromagnetic core comprising two parallel spaced apart legs, one 40 of which passes through the coil supporting tube to form the coil core and the other 41 through a slot 26 in the frame to form a support for the armature which comprises a ferromagnetic cantilever extending from adjacent the other core leg 41 to which it is fastened to adjacent the one core leg 40 whose free end it overlaps, the armature supporting a moving contact structure co-operating with a fixed contact structure on the relay frame. The core, frame and fixed contact structure are held together by rivets, and the core may be constructed from a ferrous sheet metal stamping.
Patent GB-481412-A (GB)
Title: Stirring and beating whisk
IPC: A47J43/07
Filed: 1937-09-15
Abstract: 481,412. Whisks or stirrers. MENZEL, W. Sept. 15, 1937, No. 25091. [Class 86] A whisk of the kind comprising a number of wire loops secured to a head is made from loops which are bent so that their ends, prior to assembling, cross. The loops 6, Fig. 2, are bent into a ring so as to have an initial set as shown. The ends 7, Fig. 1, are bent inwards to fit into apertures in the head 3, being secured by a sleeve 8 held in position by a nut 11. The sleeve 8 is provided with a slot 12 through which the end of a loop may be passed when a loop is to be replaced.
Patent GB-777360-A (GB)
Title: Improvements in textile spinning, doubling, twisting and winding machines
Inventor: STAFFORD ALEC WALTER
IPC: D01H1/241
Filed: 1954-08-30
Abstract: 777,360. Belt tensioning means. T. M. M. (RESEARCH), Ltd. Nov. 17, 1955 [Aug. 30, 1954], No. 25144/54. Class 120 (2). In a textile spinning, doubling, twisting or winding machine having two separate groups of spindles, the spindles of each group being individually driven by a motor through a common driving belt, two rotary elements, over which the respective driving belts are passed, are mounted with capability of movement in a direction such that tension may be exerted in the driving belts and are attached to a common belt, strap or other flexible connecting element which is passed around a pulley or its equivalent attached to a flexible link, to which tension is applied by a counterweighted arm acting through the medium of a pawl and ratchet mechanism, that the tensions in the respective driving belts are maintained constantly at the same tension. In the arrangement shown diagrammatically there are two independent electric motors 10, 11, which drive the spindles of different tiers through belts 101, 111, passed around respective motor pulleys 102, 112. The motors are capable of movement in a direction in which tension is exerted in the driving belts as indicated by arrows A and B and each is attached to one end of a flexible element 12 which passes about stationary guide pulleys 13, 14 and 15 and the sheave 16 of a single pulley block, to the axial 17 of which is connected to the end of a flexible link 18. The link 18 is wound about a roller 19 pivotally mounted on the frame 20 and carries a ratchet wheel 21. An arm 22 bearing an adjustable counterweight 23 is freely mounted on the axial 191 of the roller 19 and a pawl 221 on the arm 22 is arranged to engage the wheel 21. The arrangement is such that the tension in the link 18 is transmitted through the sheave 16 to the element 12, applying equal forces to the motors 10 and 11 and thereby an equal tension to each of driving belts 101, 111. The degree of tension in the belts 101, 111 may be varied by adjusting the position of the arm 22 in relation to the roller 19.
Patent GB-1165044-A (GB)
Title: Watchmen Location System.
Inventor: HORSTMANN KENNETH JOHN
IPC: G07C1/20
Filed: 1967-05-31
Abstract: 1,165,044. Watchman-location system. HORSTMANN GEAR CO. Ltd. 6 March, 1968 [31 May, 1967], No. 25198/67. Heading G4T. A watchman-location system comprises a mobile radio transmitter having an oscillator without a frequency-determining element, a lead from the oscillator terminating in a jack plug, a number of wall boxes each containing a different frequency-determining element such that when the jack plug is plugged into a wall box a characteristic modulating frequency is superimposed on a continuously-emitted carrier wave, and a remote receiver tuned to the carrier wave and having frequency filters, corresponding to each wall box, which operate respective relays on receipt of their characteristic frequency, causing a corresponding indicating lamp to be illuminated. It may be arranged that a lamp so illuminated is kept illuminated until another lamp is caused to be illuminated. The transmitter may be a V.H.F. transmitter.
Patent GB-250110-A (GB)
Title: Improvements in and relating to cigarette boxes
IPC: B65D85/10
Filed: 1925-10-09
Abstract: 250,110. Maevey, G. A. Oct. 9, 1925. Boxes made from special blanks and specially designed for matches; contents, delivering. - A cigarette box, Fig. 1, is formed from a single blank, Fig. 2, having a short flap 10 on one face 3 and a match pack 11 is secured between the face 3 and flap 10 and protected by an elongated flap 9 projecting from the end 8 and overlying the face 3 with its end inserted between the flap 10 and pack 11; an opening 7 in an end 5 of the box allows the insertion of a finger, &c. to force the contents of the box outwards. In a modification both flaps 9, 10 are on the face 3 of the box.
Patent GB-338536-A (GB)
Title: Improved method of treating leather, particularly for ore conveyor belts
IPC: C14C11/00
Filed: 1929-08-19
Abstract: 338,536. McLellan, A. Aug. 19, 1929. Endless-belt conveyers.-Leather, particularly that used for belt conveyers, is treated to improve its resistance to moisture and wear by buffing and applying one or more coats of a solution composed of guttapercha, sulphide of antimony or any other cold vulcanizing agent, and carbon bisulphide or carbon tetrachloride, each coat being allowed to dry before the application of the next coat. Pressure may be afterwards applied, and the leather may be first impregnated with indiarubber. Preferably chrome leather is used. Impregnation with rubber may be effected by first immersing the leather in a mixture of carbon bisulphide and petrol, and then removing and keeping it while wet in a closed vessel for twenty-four hours. After drying, the leather is placed in a revolving drum with a solution of rubber in solvent naphtha, thinned down with petrol. Drumming is continued for 7 or 8 hours. The leather is then cleaned of surplus rubber, dried and rolled. The guttapercha solution consists of, for example, 1 lb. of guttapercha, 1 to 2¢ ozs. of antimony sulphide, and 4 to 5 pints of carbon bisulphide, carbon tetrachloride or both. The flesh side of the leather is well buffed to expose the fibres, and the solution is applied in any manner, for example, by brushing. Each coat is allowed to dry before applying the next. A final pressure treatment between rollers or in a press may be applied. In one method of applying the guttapercha, the leather, cut to width, is placed on a flat surface and held between strips of material slightly thinner than the leather. The guttapercha solution is brushed on or poured on +o the leather.
Patent GB-423880-A (GB)
Title: Improved manufacture of higher tertiary alcohols
IPC: C07C29/00
Filed: 1933-09-13
Abstract: Higher tertiary alcohols are prepared by treating naturally occurring fatty acid esters, other than vegetable fats or oils, with aliphatic or aliphatic-aromatic chlorine or bromine Grignard compounds. Suitable fatty acid esters are vegetable and animal waxes and animal fats and oils, such as carnauba wax, beeswax, spermaceti, wool fat, candelilla wax and blubber, and marine animal oils such as whale oil, seal oil and sperm oil.  Suitable Grignard compounds are methyl magnesium chloride or bromide, ethyl magnesium chloride or bromide, propyl magnesium bromide, butyl magnesium chloride, cyclohexyl magnesium bromide, and benzyl magnesium chloride.  The reaction may be effected in ethereal solution, e.g. in diethyl ether, dibutyl ether, diamyl ether, or methyl-cyclohexyl ether, or in another inert solvent, e.g. xylene, in the presence of a tertiary amine.  Examples are given of the preparation of alcohols from (1) whale oil and methyl magnesium bromide; (2) sperm oil or carnauba wax and methyl magnesium bromide; (3) sperm oil and ethyl magnesium chloride; in the last example, details are given of the recovery of glycerol as a byeproduct of the process.
Patent GB-718753-A (GB)
Title: Improvements in or relating to television receivers
IPC: H04N5/62
Filed: 1952-10-10
Abstract: 718,753. Multiplex radio signalling. TELEFUNKEN GES. FUR DRAHTLOSE TELEGRAPHIE. Oct. 10, 1952 [Oct. 11, 1951], No. 25375/52. Class 40 (5)  In a television receiver in which a sound I.F. Is derived which i3 the difference between the vision and sound carrier frequencies, the output circuit of an amplifier following the receiver rectifier is connected to two series-connected impedances, one ot which has a high impedance at the sound I.F. and a low impedance at the vision signal frequencies, while the other has the reverse characteristics. In one embodiment, the anode load of amplifier valve 1 comprises, in series, a first impedance Z1 composed of a parallel tuned circuit L1, C1, resonant at the sound I.F. and a second impedance Z2 composed of a resistance R1 shunted by a series tuned circuit L2, C2 resonant at the same frequency as L1, C1 The anode terminal S feeds sound I.F. to the amplifier 4 while at the junction P of impedances Z1, Z2, appear the vision signals which are fed to the control electrode of the cathode ray tube 5. When the valve 1 is a triode, the anode is tapped on to coil L1, the grid circuit resistance being of low value, Fig. 4 (not shown). The impedances may alternatively be disposed in the cathode circuit.
Patent GB-1334410-A (GB)
Title: Microwave band-pass filter
IPC: H01P1/208
Filed: 1971-04-19
Abstract: 1334410 Waveguide filters THOMSON-CSF 19 April 1971 [15 April 1970] 25463/71 Heading H1W A microwave band-pass filter comprises at least two juxtaposed cavities formed by tubular elements 2, 4, 6, 8 provided with tuning means (Fig. 2, not shown) and separated by intermediate plates 3, 5, 7; and end plates 9 and 11; each tubular element being inserted between two plates to form a cavity, and each intermediate plate having a probe 17, 18 (Fig. 3) passing therethrough to couple microwave energy between adjacent cavities. The assembly is held together by bolts passing through holes 12 provided in the plates and tubular elements. Each intermediate plate comprises a central dielectric disc 15 through which a metal rod 17, 18 passes. The end plates of the filter assembly may include a coaxial connection 10 (as shown) or a coaxial to waveguide connection 1 (as shown).
Patent GB-1185093-A (GB)
Title: Determination of the Water Content of an Aggregate
Inventor: GIMSON ROY
IPC: G01N27/04
Filed: 1967-06-01
Abstract: 1,185,093. Measuring moisture content electrically. READY MIXED CONCRETE (UNITED KINGDOM) Ltd. Aug. 20, 1968 [June 1, 1967], No.25465/67. Heading G1N. Apparatus for determining the water content of aggregate (for concrete making) comprises fixed supports 6, 7, carrying two probes 4, 5, being metal tubes with protruding contact tines, spaced apart in the direction of flow of the aggregate 1, on a conveyer, 2. The resistance between the probes is measured by an instrument, 10, which, in the preferred embodiment Fig. 3, includes a constant voltage step-down transformer 21 which supplies a voltage variable from zero to 100 volts by potentiometer 25, to a full wave bridge rectifier, 28, in series with the probes. The D.C. output is applied to a potentiometer 31 shunting a moving coil ammeter 30. In operation the potentiometer 31 is controlled by a calibrated knob (33, Fig. 4 not shown), mounted on the instrument case, which gives a required resistance reading by positioning the ammeter needle to a predetermined region of its scale (34). Calibration is effected using dehydrated samples of aggregate. An alternative embodiment, Fig.2 (not shown) comprises a transformer supplying a half-wave rectifier in series with a potentiometer of which the wiper is connected, in series with the probes, to a moving coil ammeter (17) shunted by a variable resistance (18).
Patent GB-1077485-A (GB)
Title: Improvements in and relating to rotational dynamoelectric machines
Inventor: BOURGAIN LOUIS
IPC: H02K5/128
Filed: 1965-06-16
Abstract: 1,077,485. Dynamo-electric machines having air-gap partitions. COMMISSARIAT A L'ENERGIE ATOMIQUE. June 16, 1965 [June 19, 1964], No. 25540/65. Heading H2A. In a rotational dynamo-electric machine having within a casing 1 a rotor 14 and a laminated wound stator each presenting to the other a substantially cylindrical surface between which is provided a cylindrical sealing sleeve 22, such sleeve is plastically deformed to provide radially outward projections 34 which centre the sleeve by engaging the stator laminations 11 and increase its strength against inward deformation by coolant preferably gaseous when flowing through passages 12 in the laminations 11, and the sleeve is connected rigidly to a member 2 at one end of the casing 1 and is axially slidable relative to a member 3 at the other end of the casing in order to permit slight expansion of the sleeve. The latter connection 25 includes a sealing bellows 26, and the projections 34 shown are continuous helical ribs but in modifications may be longitudinal or corrugated, straight or inclined, continuous or interrupted, ribs, or alternatively spherical or cruciform protuberances. A compressor rotor 20 is rigidly secured to the rotor shaft 13.
Patent GB-241555-A (GB)
Title: Improvements in or relating to metal sawing machines with arcuate cut
IPC: B23D51/16
Filed: 1925-10-13
Abstract: 241,555. Babin, J., and Pays, A. Oct. 15, 1924, [Convention date]. Reciprocating-saw machines; saws.-In a metal sawing machine of the kind in which the saw is guided so as to effect a curvilinear cut, the blade used is of the kind oppositely toothed on opposite sides b, c, of its centre line. A modified form of blade, Fig. 6, may be used, in which the rake of the teeth varies continuously from the middle of the blade to each end. Specification 199,022 is referred to.
Patent GB-867432-A (GB)
Title: Two-component diazotype materials yielding prints with substantially no background discoloration and being free from sulfur stabilizers
IPC: G03C1/54
Filed: 1959-07-24
Abstract: 867,432. Photographic diazotype materials. GENERAL ANILINE & FILM CORPORATION. July 24, 1959 [Sept. 22, 1958], No. 25553/59. Class 98(2) Two-component materials suitable for making prints of stable background as in the case of intermediates, and which are free from sulphur stabilisers permitting filing of the intermediates along with silver prints without bleaching of the latter comprise, as detailed, diazotised p-morpholinoaniline, p-morpholinometa-toluidine, p-morpholino-metanilic acid, p-piperidinoaniline, p-morpholino-meta-anisidine, p-piperidino-orthotoluidine, p-oxazolidinoaniline, p-(2-methyl-oxazolidino) aniline, p-(tetrahydro-1,3-oxazino) aniline, p-(tetrahydro - 2 - methyl - 1,3 - oxazino) aniline, p-(4- methyl-3-oxazolidino) aniline, p-(2-phenyloxazolidinoaniline), p-tetrahydro-2-phenyl-1,3- oxazino) aniline and 2-methoxy-4-oxazolidinoaniline as sensitisers and meta-hydroxyphenylurea, ortho-hydroxyphenylurea, resorcinol-4-sulphonic acid, 2-(N,N-diethylaminomethyl)-3, 6-dimethylphenol, 3-acetanidophenol and m,m<SP>1</SP>-(ethylenedioxy-diphenol as couplers. Three examples are directed to the use of these substances, the solutions for sensitising including, additionally, glycol, boric and citric acids, aluminium sulphate and saponin but no sulphur-containing stabilisers. Other diazo sensitisers are indicated by a pair of structural formulae, not shown. Specification 840,108 is referred to.
Patent GB-1303934-A (GB)
Filed: 1971-04-19
Abstract: 1303934 Pyruvic acid oximes PARKE DAVIS & CO 19 April 1971 [30 March 1970] 25567/71 Heading C2C Compounds (I) or salts thereof: (where R is 1-6 C alkyl) are prepared by reacting a compound (II) with R<SP>1</SP>ONO. (where R<SP>1</SP> is 1-6 C alkyl) under anhydrous conditions and in the presence of a base. Coinpounds (I) may further be converted into N- acetyl - 3 - (3,4 - dimethoxyphenyl) alanine by reduction with H 2  and HOAc and selectively hydrolysing the ester group. The conversion of the product to L-DOPA by selective enzymic hydrolysis is described.
Patent GB-1493430-A (GB)
Title: Connector for connecting at least one optical fibre to another optical element
IPC: G02B6/36
Filed: 1975-06-16
Abstract: 1493430 Light guides COMPAGNIE GENERALE D'ELECTRICITE 16 June 1975 [20 June 1974] 25652/75 Heading G2J In a two-part connector for joining two or more optical fibres in end-to-end relationship, the fibre or fibres 38... 48 of at least one part of the connector are each located in the space defined between three contiguous, parallel, cylindrical rods 26...36 held together by a sleeve 50 thermally shrunk on to the rods. One at least of the rods may have a bevelled end, and where only two fibres are to be joined only three rods are needed, see Figs. 1, 2 (not shown). In a detailed construction of multi-fibre connector, Figs. 4, 5 (not shown) additional rods (G) are located outside and in contact with the rods 26 ... 36 of each part (DA, DB) of the connector, and the rods 26 ... 36 are supported in members (SA, SB) in each part. The member (SA) is spring urged towards the member (SB).