baber/WOPTO huggingface dataset:
Patent GB-734842-A (GB)
Title: Improvements in derivatives of pyrimidine and methods of making the same
IPC: C07D239/70
Filed: 1952-03-25
Abstract: The invention comprises 2-amino-5-aryl-dihydropyrimidine derivatives of the formula <FORM:0734842/IV (b)/1> , <FORM:0734842/IV (b)/2> or <FORM:0734842/IV (b)/3> wherein Ar is a phenyl group which may be halogen-substituted, Z is a hydroxy or amino group, and R1 and R2 may be hydrogen, phenyl or an alkyl group of 1 to 4 carbon atoms or may form together with the ring carbon atom a cycloalkyl group containing from 5 to 8 carbon atoms, and their acid addition salts.  The compounds may be prepared by reacting a b -substituted-a -arylacrylonitrile (R1R2.C= C.Ar.CN) with guanidine in an alcohol solvent and, when the product has a 4-amino group, hydrolysing if desired to the corresponding 4-hydroxy group; or by reacting an arylacetonitrile (Ar.CH2CN) with guanidine and a carbonyl compound, e.g. an aldehyde or ketone, and similarly hydrolysing if desired. The examples describe the preparation of (1) 2-amino - 4 - hydroxy - 5 - p - chlorophenyl - 6-ethyl - dihydropyrimidine from a  - p - chlorophenyl-b -ethylacrylonitrile and guanidine in alcohol; (2) 2-amino-4-hydroxy-5,6-diphenyldihydropyrimidine from a  - phenylcinnamic nitrile and guanidine in ethanol; (3) 6-cyclopentanespiro - 2,4 - diamino - 5 - p - chlorophenyl - 5,6 - dihydropyrimidine from a -cyclopentylidene - p - chlorophenyl acetonitrile and guanidine in ethanol; (4) the 4-hydroxy derivative of example (3) by hydrolysing with HCl; (5) 6-cyclohexanespiro-2,4-diamino-5-p-chlorophenyl-5, 6-dihydropyrimidine from (a) cyclohexylidene - p - chlorophenylacetonitrile and guanidine, and (b) p-chlorophenylacetonitrile, cyclohexanone and guanidine, in ethanol; (6) the 4-hydroxy derivative of example 5 by hydrolysing with HCl. The following 5,6-dihydropyrimidines, with their melting points, are also specified: 6-cycloheptanespiro - 2,4 - diamino - 5 - p - chlorophenyl-, 6 - cycloheptane spiro - 2 - amino-4 - hydroxy - 5 - p - chlorophenyl -, 6 - (4 - and 3 - methyl - cyclohexane) spiro - 2,4 - diamino-5 - p - chlorophenyl -, 2 - amino - 4 - hydroxy-5 - m - chlorophenyl - 6 - ethyl -, 2 - amino - 4-hydroxy - 5 - (3,4 - dichlorophenyl) - 6 - ethyl -, 6 - cyclohexanespiro - 2,4 - diamino - 5 - (3,4-dichlorophenyl) -, 6 - cyclooctanespiro - 2,4-diamino - 5 - p - chlorophenyl -, 6 - cyclohexanespiro - 2 - amino - 4 - hydroxy - 5-(3,4 - dichlorophenyl) -, 6 - cyclohexanespiro-2,4 - diamino - 5 - phenyl -, and 6 - cyclohexanespiro - 2 - amino - 4 - hydroxy - 5-phenyl-5,6-dihydropyrimidines.  a  - p - chlorophenyl - b  - ethylacrylonitrile is prepared by condensation of p-chlorophenylacetonitrile and propionaldehyde in the presence of sodium ethoxide.  Cyclopentylidene - and cyclohexylidene - p-chlorophenyl acetonitrile are prepared by condensation of cyclopentanone and cyclohexanone with p-chlorophenyl-acetonitrile in alcoholic sodium ethoxide.
Patent GB-361235-A (GB)
Title: Improvements in or relating to swimming belt
IPC: B63C9/15
Filed: 1931-03-12
Abstract: 361,235. Life belts. KENNEDY, J. F., 2903, Whitney Avenue, Baltimore, U.S.A. March 12, 1931, No. 7645. [Class 77.] A lifebelt comprises an inflatable rubber tube having a valve 11, the sides of the tube at opposite points 12 being cemented or vulcanized together, forming non-inflatable parts with air passages 16, 17 around them. Slots 21 are provided to increase the flexibility of the belt, and a reduction in width of the belt vertically is made at the same points.
Patent GB-609362-A (GB)
Title: Process for improving dyed textile materials
IPC: D06P5/10
Filed: 1946-03-12
Abstract: Dyeings of improved light fastness are obtained by applying to or forming on the dyed material a precondensate of formaldehyde and urea or analogous nitrogen-containing compound and subsequently hardening the precondensate, and thereafter treating the material in an alkaline bath with an agent yielding copper. The dyestuff used may be one which is itself incapable of forming a complex copper compound or is no longer capable of forming such a compound.  Fabrics may be used which are dyed with complex metal compounds of substantive dyes, whether the copper complex is produced in substance or in a single or 2-bath metallizing process, and whether or not they already contain complex metal compounds of dyestuffs.  Copper compounds which contain the copper in complex union are preferably used, for example, compounds obtainable by the reaction of copper salts with aminocarboxylic acids, oxy-carboxylic acids and polyoxo-compounds. Advantageously, a weak alkali such as sodium carbonate is present and the treatment is carried out at 40-80 DEG  C.  Textile finishing agents such as soap or a softening agent may be added to the copper bath.  In an example, cotton fabric dyed with Chlorantine Fast Blue 3GLL is rendered crease-resistant by impregnating in a bath containing dimethylolurea, ammonia, Sapamine FLN and ammonium chloride followed by squeezing, drying, and hardening at 120 DEG  C. for 4 mins.  The fabric is then after-treated at 50 DEG  C. with a solution containing sodium carbonate and copper sodium tartrate.
Patent GB-511373-A (GB)
Title: Improvements relating to the construction of underground chambers
IPC: E02D29/055
Filed: 1938-03-11
Abstract: 511,373. Constructing underground chambers. HUNTER, C. M. March 11, 1938, No. 7685. [Class 68 (i)] Underground chambers for storage, garaging vehicles or for use as air raid shelters, are formed by arranging at least two rows of spaced piles in the ground prior to commencement of the excavation, the outer row being arranged along the line of the side wall of the chamber, progressively excavating between the piles, and constructing a retaining wall round the side of the chamber, said wall being connected to the outer piles which are themselves connected to inner piles. In Fig. 3, piles 1 are placed around and over the area of the site and a spoil shaft 2 is formed; excavation then proceeds from the spoil shaft in layers 6-12, which may be independent, or from one or more continuous spirals, and roofs 13 and floors 14 are formed and integrally connected with the piles, wallretaining members 15 being built in between piles of the outer row. Lifts, ramps &c. may give access. In Figs. 7 and 10 three circular rows of piles 17 are placed and excavation is effected in layers, which may correspond to the floor heights, from the surface, and the piles are progressively braced together and to wallretaining members 21 by braces 22. A foundation 23 is then formed, on which is built a structure comprising floors 26 carried by the two outer rows of piles and by strong, widely-spaced pillars 27. The innermost row of piles is then removed and a roof 25 and bomb-proof cover 28 is formed. This form may be modified by placing piles suitably spaced over the whole area, the piles being left in place to form a permanent part of the structure. Additional piles may be placed around the site to reinforce the ground, and may be tied to the chamber. The piles may be formed by boring holes larger in diameter than the piles and extending to or below the bottom of the chamber, a sectional tubular casing being then lowered into each hole and filled with cement to which pressure is applied to force the cement up around the casing; alternatively pre-formed piles may be driven, or lowered into holes, or structural steel or iron columns may be used and may be built up of profile bars connected by plates. The wallretaining members 15, 21 may be of concave steel or iron sheets, or reinforced concrete, behind which concrete may be inserted, and the piles may have grooves to receive such members.
Patent GB-278958-A (GB)
Title: Improvements in curtain poles
IPC: A47H1/022
Filed: 1927-03-21
Abstract: 278,958. Smith, C. W. March 21, 1927. Curtain poles. - A curtain pole consists of a number of sections 5, one end of each section having a tapped hole 10 and the other end a screwed spigot 9 so that the sections can be readily connected. Each section is provided with a circumferential groove 12 to prevent the curtain slipping when draped. End sections 6, 7 with plain ends are provided.
Patent GB-180460-A (GB)
Title: Improvements in rubber covered paving blocks
IPC: E01C5/22
Filed: 1921-03-12
Abstract: 180,460. Waller, J. H. de W. March 12, 1921. Composite blocks.-A concrete paving-block A has its top face covered with a pre-moulded rubber wearing-surface B which projects horizontally beyond the vertical surfaces A<1> of the lower por. tion of the block. The vertical sides B<1> of the rubber covering may be treated with adhesive to form tight joints when a series of blocks are laid together, while the spaces A<2> may be filled with concrete.
Patent GB-128885-A (GB)
Title: A Regulating Device for Maintaining a Constant Voltage or Intensity in Dynamos Working with Great Variations of Output.
Inventor: ROUZET LUCIEN
IPC: H02P9/18
Filed: 1919-03-28
Abstract: 128,885. Rouzet, L. March 28, 1919. Electro-magnets.-A regulator for maintaining constant the voltage or current of a generator, consists of an electro-magnet E, the coil of which is connected to a rod l<3> carrying brushes B<1>, B<2>. These brushes wipe over the coils of the electromagnet and form the connecting means between the coil and the generator. The coils d<1>, Fig. 3, of the electro-magnet surround a tube, are separated by iron plates, and are connected to the insulated disks R, over which the brushes B<1>, B<2> wipe.
Patent GB-268351-A (GB)
Title: Improvements in or relating to spinning, twisting and winding spindles
IPC: D01H7/50
Filed: 1927-02-23
Abstract: 268,351. Kl÷tzer, H. Feb. 23, 1926, [Convention date]. Spindle apparatus; winding- machines.-In spinning, twisting, and winding machines of the kind wherein the cop is displaced along the spindle during the building thereof, the cop carrier is caused to travel in a helical path upon the spindle during its displacement. The spindle is provided with a helical groove 5 which is engaged by a projection on the cop carrier 1 or upon a spring sleeve 3 fitted between the carrier and spindle. The helical groove 5 is of such pitch as to prevent the sinking of large cops by reason of their weight. The invention is applicable to ring and traveller spindles, and to spindles of the kind described in Specifications 3883/07 and 11308/08 comprising a driven tube surrounding an axially movable spindle, and the cop is displaced in the manner described in Specification 266,724.
Patent GB-1174992-A (GB)
Title: Contoured Roofing Tile
Inventor: HAMMOND LESLIE GERALD
IPC: E04D1/04
Filed: 1967-02-20
Abstract: 1,174,992. Roof tiles. ANCHOR BUILDING PRODUCTS Ltd. 9 Feb., 1968 [20 Feb., 1967], No. 8041/67. Heading E1B. An extruded concrete roof tile 1 having a flat trough 2 in its upper surface bounded by side portions 6 and 7, has a ridge 13 formed across the trough adjacent the head end of the tile. The ridge 13 is a separate bar of concrete pressed into the surface of the tile during manufacture. Securing ribs 12 are provided on the rear face of the tile at the extreme edges of the head and tail ends. The tail rib 12 of an overlapping tile extends below, the rib 13 of the overlapped tile in the course below. Adjacent tiles in the same courses are interlocked by ribs 9 and 10 on flattened portions 8 and 11 at the edges of side portions 6 and 7 respectively. There may be two ridges 13. (For Figure see next column)
Patent GB-730738-A (GB)
Title: Improvements relating to lubricating oil compositions
Filed: 1953-03-24
Abstract: A lubricating composition, which has a reduced tendency to form lacquer-like deposits when subjected to high temperatures in an engine, contains a major proportion of a hydrocarbon lubricating oil, a minor proportion of one or more substances of the formula <FORM:0730738/III/1> wherein R1 and R2 are hydrogen or aliphatic, cycloaliphatic or aromatic radicles and R3 and R4 are alkyl radicles, and sufficient of one or more oil-soluble basic metal salts of organic sulphonates (i.e. metal sulphonates which are sufficiently over-neutralized as to contain a minimum of 20 per cent by weight of metal in excess of the amount theoretically required to form the ordinary neutral organic sulphonate) to reduce or inhibit substantially the lacquer-forming propensities of the composition. The lubricating composition may contain additional ingredients such as oiliness and extreme pressure agents (e.g. phosphorus or sulphur containing organic compounds), viscosity index improvers (e.g. high molecular weight resins), pour point depressants (e.g. high molecular weight polymers or wax-naphthalene condensation products), detergents (e.g. metallic sulphonates or phenolates) and foam inhibitors (e.g. silicones). A list of suitable 2,21-alkylidene bis 4,6-dialkyl-phenols of the above formula is given, while basic metal salts mentioned are the basic calcium, barium, strontium, magnesium, lead, zinc, cobalt, tin and aluminium salts of petroleum sulphonic acids or other alkyl or aryl sulphonic acids.  The desired excess of metal may be introduced and held by the organic sulphonates by employing an alcohol as the carrying medium for the metal in the reaction with the sulphonic acid.  Thus, in the case of the basic barium salt, methanol may be reacted with barium oxide and the product in turn reacted with an organic sulphonic acid to produce a basic complex.  In the examples, compositions are described containing mineral lubricating oil, 2,21-methylene bis (4-methyl-6-t-butylphenol) and basic barium or lead petroleum sulphonate containing about 21 per cent by weight excess metal.
Patent GB-1376347-A (GB)
Title: Method of feeding crabs and / or making the flesh in crabs more firm
Inventor: JOHNSEN O
IPC: A01K61/59
Filed: 1972-02-23
Abstract: 1376347 Feeding crabs O JOHNSEN 23 Feb 1972 [24 Feb 1971] 8234/72 Heading A1A [Also in Division B1] Crabs after being captured are kept in seawater to which additional salt has been added and/or are given fodder to which salt has been added. This improves respectively the consistency of the flesh and the filling of the crabs with flesh. A dosage apparatus for the salting of seawater in a basin 10 in which the crabs are kept comprises a salt container 6 fed by a hopper 5 and separated by non-return valves 4, 7 from a container 2 for fresh sea-water and from a conduit 8 which carries the main portion of the sea-water flow. Fresh sea-water is supplied by means of a pump to the conduit 1. The basin 10 is provided with tapping devices for the old sea water.
Patent GB-522774-A (GB)
Title: Improvements in or relating to methods of manufacturing secondary emitting electrodes
IPC: H01J9/12
Filed: 1939-03-15
Abstract: 522,774. Electrode materials. BAIRD TELEVISION, Ltd., and SOMMER, A. March 15, 1939, No. 8273. [Class 39 (i)] A secondarily-emissive electrode which is not photo-emissive is made by oxidizing a layer of photo-emission material containing an alkali metal until it ceases to be photo-emissive. For example a layer of antimony is evaporated on to a supporting plate and maintained at 140-190C. while caesium vapour is introduced; it is stated that at these temperatures the caesium diffuses into the antimony. The electrode is then cooled to room temperature and oxygen introduced until photo-emission ceases, when the tube is evacuated and sealed off. Specification 522,752 is referred to.
Patent GB-471316-A (GB)
Title: Improvements in sirens
IPC: G10K7/00
Filed: 1937-03-20
Abstract: 471,316. Horns for sirens. EKMAN, O. I. H. March 20, 1937, No. 8289. Convention date, March 20, 1936. [Classes 13 and 118 (ii)] In a siren having a rotary wheel or valve 1 formed with openings 2 to allow compressed air to be intermittently expelled through openings 6, 7 which are formed in a casing 5 surrounding the wheel or valve and are connected to a horn mounted in the support member 10, the horn is connected with the openings 6, 7 through separate branch conduits 8, 9 which are equal in length as measured from the respective openings to that point where the branch conduits join each other. More than one horn may be employed and each horn may be connected to two or more adjacent sound openings in the casing. The branch conduits 8, 9 form the same angle with the circumferential surface of the casing 5.
Patent GB-1240056-A (GB)
Title: Control system for electric arc furnace
IPC: H01F29/04
Filed: 1969-02-17
Abstract: 1,240,056. Automatic control of arc furnaces. WESTINGHOUSE ELECTRIC CORP. Feb. 17, 1969 [March 8, 1968]. No. 8443/69. Heading G3R. In an electric arc furnace, any deviation of the electrode current and voltage from a predetermined ratio causes a polarized error signal to be developed across resistor 132 which is connected to amplifier 136. The amplified signal is applied a motor 146 for shifting the electrode position until the ratio between electrode current and voltage returns to the pre-selected value. A supply transformer 20 has tap-changing apparatus 62, a signal for changing taps initiating a modification in the regulator circuit to reduce the electrode current, and to delay the actual tapchanging operation for a period to allow the electrode current to reach its lower operating value. This reduced current condition is maintained until the tap-change cycle has been completed, the regulator then returning to its original state. This current reduction is effected by simulating a reduction in the electrode-to-hearth voltage, a resistor 86 in the detector circuit being associated with contacts 98, 100. Contacts 98 are opened as soon as a tap-changing operation is started, while contacts 100 open after a short delay and remain open until the cycle is completed. A selector switch 178 may be set to operate the tap-changer from a switch 174 which is adapted to be adjusted to a "lower" position in which relays A1, TD, are energised. Contacts 98 are opened, and, after a period, relay L responds to start the tap-changing motor 164. Relay A11 is energized to open the contacts 100, a light 196 indicating that the switch 174 may now be released. When the tap-changer reaches its new operating position, contact TC1 opens to de-energize the relays L and A11, a brake relay B being kept energized for a short period so that both coils 186, 180, of the motor 164 are excited to stop the tap-changer in the selected position. Operation to adjust the tap-changer to a "higher" position is similar to that described. In another arrangement, the electrode current is reduced prior to and during a tap-change by connecting a resistor in the circuit which measures the current.
Patent GB-243961-A (GB)
Title: Improvements in the devices for lifting the frame carrying the shuttle boxes of mechanical looms for multi-colour weaving
IPC: D03D43/00
Filed: 1925-03-30
Abstract: 243,961. Schiapparelli, P., and Schiapparelli, P. March 30, 1925. Change-box motions.-The frame 2 carrying the drop shuttle boxes 1 is connected by a fork 7 to a vertical sleeve 6 provided with vertical holes to receive rods 4<C>, 4<D>, 4<E> attached to pistons 3<c> operating in cylinders C, D, E and actuated by compressed air introduced through pipes 8<C>, 8<D>, 8<E> from a distributing chamber 11 having an admission pipe 16 the admission of the compressed air to the pipes 8<C>, 8<D>, 8<E> and to an outlet pipe 14 communicating with the open air is regulated by a valve 17 operated by a rod 18 and levers or gears controlled by perforated cords &c. The pistons have varied .throws so as to raise the sleeve 6 to a varied extent to bring any of the shuttles II, III or IV into action. When none of the pistons is raised, the shuttle I comes into action. The cylinders, the sleeve and the frame are mounted on pivots so that they can oscillate, the pipes 8c &c. being flexible or being provided with flexible joints.
Patent GB-1364404-A (GB)
Title: Preparation of 2 - alkoxy - 5 - alkylsulphonyl - benzoic acids
IPC: C07C315/04
Filed: 1973-02-21
Abstract: 1364404 Process for 2-alkoxy-5-alkylsulphonyl-benzoic acids RENFAG SA 21 Feb 1973 [19 July 1972] 8467/73 Heading C2C The invention comprises making compounds (I) (where X and Y are alkyl or alkenyl radicals with from 1 to 4 carbon atoms) by alkylating o-cresol with, e.g. an alkylsulphate, an alkylhalide or an alkylarylsulphate, to produce an o-alkoxycresol; brominating the o-alkoxycresol to a 2-alkoxy-5-bromotoluene; reacting the 2- alkoxy-5-bromotoluene with a mercaptide to give a 2-alkoxy-5-alkylthio-toluene; and oxidizing the 2-alkoxy-5-alkylthio-toluene with, e.g. potassium permanganate to give (I), optionally via a 2-alkory-5-alkylsulphonyl-toluene.
Patent GB-1390312-A (GB)
Title: Device for checking the recording process in a tachograph or  similar recording apparatus
IPC: G01D5/26
Filed: 1973-02-21
Abstract: 1390312 Recording apparatus KIENZLE APPARATE GmbH 21 Feb 1973 [23 Feb 1972] 8537/73 Heading G1J To check the recording process in a tachograph or similar recording instrument having at its front face means to indicate the values being measured by the instrument, and multi-track recording means within its housing, the record tracks not being directly visible from the front face of the instrument, an optical system 21, 26 enables a portion of each track to be seen from the front of the instrument. In Figs. 1,2, the most recent portions of three tracks (speed, driving time, distance), recorded by pens 17, 18, 19 respectively on a disk 8, are viewed through the front glass 35 via an arcuate magnifying window 26 and a multi-path prism 21. The record disk 8 is rotated by a clock mechanism in the lid 1 of the tachograph, and is illuminated by a lamp 34. The window 36 is mounted in the main dial 38 of the instrument or in the front glass 35. Other forms of prism Figs.7, 8 (not shown) with or without a second prism (74) Fig.8 allow the window 26 to be located nearer to the centre of the dial 38, e.g. in a position directly aligned with the position of the track portions being made visible. In Figs. 4, 6 a second record disk 52 is supported by the lid 1, a hinged transparent flap 51 carrying a recording pen 53 for the disk 52, and supporting on its rear face the first disk 8, (not shown). A prism 58 set into the flap 51 allows viewing of a portion of the record track plotted on the disk 52. A lamp 62 for the second disk 52 provides light which enters the flap 51 at a surface 63, is reflected by an edge 64 of a slot 65, and leaves through a surface 66. The prisms may be of glass or plastics.
Patent GB-1468264-A (GB)
Title: Lad carrying additive
IPC: C07C333/18
Filed: 1975-02-06
Abstract: 1468264 Lubricants BRITISH PETROLEUM CO Ltd 6 Feb 1975 [26 Feb 1974] 8575/74 Heading C5F [Also in Divisions C2 and C3] Lubricating oil compositions comprise as load bearing additives derivatives of halogenated polybutenes prepared by reacting halogenated polybutenes of molecular weight less than 1500 and dithiocarbamate salts, which may be formed in situ from an amine or amine salt, a metal hydroxide and carbon disulphide. The additives have the formula R 1 R 2 NCSSR 3  where R 3  is derived from polybutene, R 1  and R 2  are alkyl, cycloalkyl or aryl radicals which may contain hydroxyl substituents or R 1  and R 2  may together with the N atom form a ring optionally containing an oxygen linkage. Examples describe mineral oil compositions comprising as additives reaction products of chlorinated polybutenes with sodium dibutyldithiocarbamate or with sodium hydroxide, carbon disulphide and cyclohexylamine, isopropylamine or morpholine.