baber/WOPTO huggingface dataset:
Patent GB-841183-A (GB)
Title: Improvements in cutting or abrading tools
Inventor: OXFORD LEONARD GEORGE
IPC: B23D71/00
Filed: 1958-03-10
Abstract: 841,183. Milling-cutters; making cutting- tools. SIMMONDS AEROCESSORIES Ltd. March 6, 1959 [March 10, 1958; July 31, 1958], Nos. 7601/58 and 24702/58. Classes 83 (2) and 83 (3). A rotary cutting or abrading tool comprises a convex metal disc having an annulus A of hardened teeth 3, and a central portion 1 adapted for connection to a spindle, a chord C to the annulus A being at 88-75 degrees to the axis of the disc. The teeth 3 are formed as in Specification 839,401, with zero or positive-rake, and dimples &c. may be provided, as in Specification 836,051, to control the depth-of-cut. The disc is rotated about a fixed axis between tooth-forming punching operations. Alternatively, the teeth may be formed as in Specification 836,242 or 836,051, with or without the depth-of-cut control. A peripheral rim (Fig. 3, not shown), may be formed on the disc. In Fig. 5, the disc 20 is shown spot-welded to a drum 21 formed of the cutting-strip described in Specification 695,830. A backing-ring or strip 32 is welded to a flange 24 on the drum, which is hardened after attachment to the disc. The drum may be formed from the cutting-strips described in Specifications 836,051, 836,242 and 839,401. Specifications 666,573, 666,622 and 772,738 also are referred to.
Patent GB-217335-A (GB)
Title: Improvements in or relating to windows and apparatus for raising and lowering same
IPC: E05F11/38
Filed: 1923-03-17
Abstract: 217,335. Peters & Co., Ltd., G. D., and Le Clair, L. J. March 17, 1923. Vehicle windows; sashes balanced by springs.-A channel 16 or the like adapted to move with the sliding sash is arranged to collect water draining off the sash and to deliver it to a conduit fixed in the well, from which it is discharged outside the vehicle. At the bottom of the channel, which slopes from each end towards its centre, there is provided a depending outlet pipe 17 adapted to deliver drainage water into an open-topped receptacle 18 having at its bottom a discharge pipe 19. A flexible pipe may connect the pipes 17, 19 to obviate the employment of the funnel 18. Balancing-means comprising spring- stressed levers act on the sash adjacent the two lower corners so as to be clear of the drainage water receiving and discharging means and at the same time to ensure that the vertical edges of the window shall always move parallel to the fixed guides. Centrally disposed spring-pressed lazy-tongs may be employed, in which case the pipe 17, the receiver 18 and the pipe 19 are arranged near one side of the well. There may be provided at each side a pivoted bell-crank lever 6, 8 one arm 6 of which is pivoted to an arm 5 pivoted to a lug attached at one end of the lower rail of the sash 1, and the other arms of the bell-crank levers are connected by springs 10 and screwed rods 12 through the medium of a turnbuckle 11. A single coiled spring may be used in place of the springs 10. Blocks 15 mounted with rubber blocks 15a act as stops when the window is open.
Patent GB-331842-A (GB)
Title: A process for the manufacture and production of new compounds from vat dyestuffs
IPC: C09B9/02
Filed: 1929-03-09
Abstract: 331,842. Johnson, J. Y., (I. G. Farbenindustric Akt.-Ges.). March 9, 1929. Leuco compounds of vat dyes, derivatives of.- Aryl ethers of the leuco compounds of vat dyes are obtained by heating the leuco compounds, or the vat dyes themselves in presence of reducing agents such as metals, with alkali phenolates preferably in an inert solvent or excess of the phenol. The products may also be obtained from intermediate compounds which are convertible into hydro-compounds of the vat dyes under the conditions employed. The products may be employed as intermediates for dyestuffs, for the purification of dyestuffs, and in part for dyeing directly. According to examples, (1) pyranthrone is heated with excess of phenol, zinc dust, or other finely-divided metals such as copper or iron, or with trichlorbenzene as diluent instead of excess of phenol, to give a phenyl ether; the same product may be obtained by using 2: 2<1>- dimethyt-1 : 1<1>-dianthraquinonyl instead of pyranthrones; (2) pyranthrone is reduced with sodium carbonate and hydrosulphite, then heated with potassium hydroxide and phenol to give the monophenylether of dihydropyranthrone. which dyes vegetable fibre cherry red shades which are converted into green-brown shades on exposure to air and by treatment with acid oxidizing agents into the shade of pyranthrone; (3) flavanthrone heated with phenol, sodium carbonate, and zinc dust, gives a product which forms a blue hydrochloride; and (4) the diphenyl ethers of indigo, dibenzanthrone, Bz2: Bz2<1>-dimethoxydibenzanthrone, prepared in a similar manner, are described.
Patent GB-1235079-A (GB)
Title: Incandescent lamp including an internal fuse
IPC: H01K1/40
Filed: 1970-02-18
Abstract: 1,235,079. Halogen lamp. PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd. 18 Feb., 1970 [21 Feb., 1969], No. 7806/70. Heading H1F. In an electric filament halogen lamp comprising a tubular envelope 1 with metal foils 29, 31, sealed in a pinch seal 3 and with current carrying pins 33, 35, secured to these metal foils, at least one end 13 of the filament 7, 9, is secured inside the lamp envelope to the ends of at least two conductors 21, 23, of different diameters connected to the foil 29 in the pinch seal and projecting from the seal into the envelope to form a fuse. The two conductors are of tungsten wire, one having a diameter 20% to 80% greater than the other, and both conductors may extend parallel to one another between the filament and the foil, being connected to the filament end via a separate tungsten mandrel, Fig. 2, not shown, or the smaller diameter conductor may be wound helically around the other conductor to form a mandrel which can be screwed into the filament end, Fig. 4, not shown. The filament and conductors are supported in the lamp by a quartz glass stay 19 on a support wire 17.
Patent GB-1219504-A (GB)
Title: Production of benzene carboxylic acids and anhydrides
IPC: C07D307/89
Filed: 1968-02-16
Abstract: 1,219,504. Cyanobenzene carboxylic acids. GELSENBERG BENZIN A.G. 16 Feb. 1968 [17 Feb., 1967], No. 7829/68. Heading C2C. A process for obtaining benzene carboxylic acids comprises oxidizing in the gaseous phase with oxygen or a gas containing free oxygen in the presence of an oxidation catalyst at a temperature of 350‹ to 550‹ C. a benzene or tetrahydrobenzene compound having a nitrile group or an amido group and at least one alkyl group or a hydroxy alkyl group in the meta or para position to the nitrile or amido group to obtain a cyano benzene carboxylic acid or anhydride and optionally saponifying the said acid or anhydride to form a polybasic benzene carboxylic acid. The production of m- and pcyano benzoic acid and of 4-cyano-o-phthalic anhydride and their saponification products isophthalic, terephthalic and trimellitic aicds is exemplified.
Patent GB-783354-A (GB)
Title: A new or improved fastening for doors, gates or the like
IPC: E05C19/00
Filed: 1955-03-17
Abstract: 783,354. Door fastenings. FINDLAY, J. S. March 7, 1956 [March 17, 1955], No. 7856/55. Class 44 Relates to a fastening for a closure member such as a door or gate 15 of the kind which is mounted for hinging movement adjacent one edge thereof. According to the invention, the fastening comprises a pair of stop members 10, 11 of elongated configuration mounted or adapted to be mounted on the side of a door way or supporting structure 12 adjacent the free edge of the closure member 15 when this is in a closed position so as to extend substantially parallel to the length of the free edge, the stop members 10, 11 being adapted to engage with opposite faces of the closure member 15 in the closed position thereof to retain it in such position against opening movement in either of two opposite directions, at least one of the members being adapted to hinge relative to the supporting structure about an axis parallel or substantially parallel to the free edge of the closure member and between an operative position in which it is adapted to co-operate with the other stop member and retaining the closure member in the closed position and an inoperative position in which the free edge of the closure member can swing past the hinged stop member, and catch means 17 adapted releasably to retain the hinged stop member in its operative position in which the free edge of the closure member is disposed between the two stop members. The member 11 may be consituted by the structure 12. As shown the catch means 17 is pivotally mounted on the stop member 10 in such a way as to engage the face of the gate 15 opposite to that engaged by the stop member 10. In a modification, Fig. 4 (not shown), as applied to a door, a corner of the door is cut away to provide a working space for the catch 17. The catch may be retained in the operative position by a locking means (not shown). The invention is applicable to closure members which swing in either direction from the closed position, in which case both stop members are mounted for hinging movement on a plate and each member is provided with its own catch means. The catch 17 shown, may be replaced by a locking pin engaging the door and the hinged stop member.
Patent GB-1037012-A (GB)
Title: Polyazo dyes their production and use
Inventor: WICKI HEINZ
IPC: C09B33/00
Filed: 1963-02-27
Abstract: The invention comprises polyazo dyes of the formula <FORM:1037012/C4-C5/1> wherein n represents 1 or 2, m, p and q each represent 1, 2 or 3, the sum of m+p+q being 5, a represents a hydrogen atom, a halogen atom (chlorine, bromine), a substituted or unsubstituted alkyl or alkoxy group, Y represents a hydrogen atom or sulphonic group and R the radical of any desired diazo component and in which the nuclei A and/or B may contain any substituents with the exception of sulphonic acid groups.  The dyes are prepared by conventional diazotization and coupling procedures. The dyes are suitable for dyeing leather.  In an example, 1 - amino - 8 - hydroxynaphthalene-3,6-disulphonic acid is diazotized and coupled with 1,3-dihydroxybenzene; 4-amino-21,41-dinitro - 61 - carboxydiphenylamine is diazotized and coupled with the monoazo dye produced to obtain a disazo dye which is coupled with a further two moles of diazo compound obtained by diazolization of 4-amino-21,41-dinitro - 61 - carboxydiphenylamine.  Many additional examples are furnished.
Patent GB-639323-A (GB)
Title: Machines for moulding candles, soap tablets, die castings and the like
IPC: B29C33/00
Filed: 1946-03-13
Abstract: A machine for making candles comprises a chain of linked moulds which travels clockwise <PICT:0639323/III/1> <PICT:0639323/III/2> <PICT:0639323/III/3> <PICT:0639323/III/4> <PICT:0639323/III/5> around driving wheels L, passing first under a filling chamber R, then through a cooling chamber F and then to a discharge station. The moulds are connected by links A.  Each mould comprises two halves H, J, which are pressed apart by a spring O but closed together at the lower side, prior to reaching the filling chamber R, by a tapering guide Q.  As the moulds pass along the guide they are closed from the position shown in Fig. 3 to the position shown in Fig. 5.  Whilst they are in this guide the gap at the top of the moulds is closed by a guide rail X, which is cut away below the chamber R to allow molten candle grease to flow from the chamber into the moulds.  The discharge station comprises a forked guide rail Y which spreads apart the lower parts of the moulds, whereupon the candles fall out of the moulds.  A continuous wick T is passed centrally through the moulds and becomes embedded in the candle grease.  The candles thus made are separated from one another by a rotating cam wheel Z which jerks downwardly each mould; the hole Z1 at the rear end of the mould through which the wick passes is knife-edged, so that this jerk severs the wick.  A partition D isolates the spring O from the mould proper. Holes P in one mould half receive locating dowels in the other mould half.  Rollers U are provided below the filling chamber to hold the two halves of the moulds closed.  The Provisional Specification states that the moulds are carried on a chain or chains.
Patent GB-1389971-A (GB)
Title: Equipment for watering plants
IPC: A01G25/02
Filed: 1973-02-19
Abstract: 1389971 Watering plants COMPAGNIE NATIONALE D'AMENAGEMENT DE LA REGION DU BAS-RHONE ET DU LANGUEDOC 19 Feb 1973 [17 Feb 1972] 8015/ 73 Headings AID and A1E [Also in Division B2] Equipment for watering plants in pots 1 comprises tubes 2 with perforations accommodating nozzles 8 comprising a downwardly tapering, serrated portion 14 for inserting in a perforation with a bore 17 which is wider in nozzles further from the supply pipe 3 to compensate for the pressure drop along the tubes 2 and an upwardly tapering, possibly serrated portion 11 with a wider bore 16 on which fits a tube 6 leading to a pot 1. The valve 4 in the supply pipe 3 may be manually or automatically operable. The bores 17 are of increasing diameter between 1.5 and 2.5 mm depending on their distances along the length of the tube 2.
Patent GB-666590-A (GB)
Title: Improvements in or relating to the preparation of derivatives of ª‰-ketoesters
IPC: C07D295/15
Filed: 1949-03-25
Abstract: In a process for the preparation of derivatives of b -ketoesters of the general formula <FORM:0666590/IV (b)/1> an a -alkyl-b -ketoester of the general formula RCO.CHR1.COOR11 is reacted with formaldehyde and a secondary amine where R is an alkyl or aryl group, R1 and R11 are alkyl groups and -NR2111 is the residue of the secondary amine. The products may be reduced by aluminium amalgam to compounds of the formula <FORM:0666590/IV (b)/2> The -OH group of the latter may be benzoylated or reacted with p-nitrobenzoyl chloride, followed by reduction of the nitro group to an amino group.  In examples: (1) ethyl-a -ethylacetoacetate is reacted with formaldehyde and diethylamine to form a -ethyl-a -diethylaminomethyl-acetoacetate; (2) ethyl-a -methylacetoacetate condensed with diethylamine and formaldehyde yields a  - methyl - a  - diethylamino - methyl-acetoacetate; (3) as in example (1) but using ethyl-a -ethylacetoacetate to give a corresponding product; (4) ethyl - a  - methyl - benzoylacetate, paraformaldehyde and dimethylamine give a -methyl-a -dimethylaminomethylbenzoyl - acetate; (5) ethyl - a  - ethylbenzoylacetate, paraformaldehyde and piperidine give ethyl-a -ethyl-a -piperidinomethylbenzoyl-acetate; (6) the product of example (1) is reduced with aluminium amalgam to give the corresponding secondary alcohol; (7) the secondary alcohol obtained in example (6) is esterified with benzoyl chloride; (8) the secondary alcohol of example (6) may be converted into its p-amino-benzoyl ester by treatment with p-nitro-benzoyl chloride followed by reduction with palladised charcoal.
Patent GB-251600-A (GB)
Title: Improvements in methods and devices for cleaning the wet-felts of paper machines
IPC: D21F1/32
Filed: 1926-03-26
Abstract: 251,600. Asten, E. von. April 30, 1925. [Convention date]. Wet presses.-In cleaning the wet felts of paper machines, guide members d, d', having inclined ribs, produce a lateral distortion of the felt, thereby opening the pores and allowing the impurities to be washed out by water from a spray pipe e. The water in excess is removed by a suction cylinder f.
Patent GB-1031762-A (GB)
Title: Process for continuously dehydrating organic compounds
IPC: C07C51/56
Filed: 1963-03-01
Abstract: Intermolecular and intramolecular anhydrides are produced from organic compounds which contain a carboxylic group separated by two or three carbon atoms from a second carboxylic group or from a sulphonic, hydroxy, or amino group by heating the organic compound in the presence of a solvent (e.g. an alcyclic acid, ether or ketone) and an organic liquid which acts as a distillation-entrainer for removing water from the reaction zone. The process is advantageously carried out in a distillation column using a hydrocarbon or a chlorohydrocarbon as entrainer.  The required anhydride, admixed with solvent, is withdrawn from the base of the column.  Maleic anhydride (Examples 1 and 2), methylmaleic anhydride (Ex. 4), o-sulphobenzoic anhydride (Ex. 3), polylactic acid (Ex. 5), and N-methylphthalimide (Ex. 6) may be prepared by this azeotropic distillation process.  The following compounds may also be prepared:-phthalic, succinic and glutaric anhydrides, lactides, gamma- and delta-lactones, and N-ethyl-N-butyl- and N-hexyl-phthalimides.
Patent GB-1074392-A (GB)
Title: Planographic printing plates
IPC: B41N3/03
Filed: 1965-01-22
Abstract: 1,074,392. Photographic materials. KALLE A.G. Jan.22, 1965 [Feb. 4, 1964], No.8396/67. Divided out of 1, 074, 391. Addition to 950, 761. Heading G2C. A photographic material comprises an aluminium support coated with a phosphinic acid or derivative thereof and then with a layer containing a condensation product of a diphenylamine-4-diazonium salt with formaldehyde, a phenolic resin and/or a polyvinylacetal. A novolak and polyvinyl formal and butyral are the specified resins. If the material is imagewise exposed, it may be developed to give a printing plate as set out in Specification 950,761.
Patent GB-1009385-A (GB)
Title: Improvements in or relating to a lock mechanism having secret combinations for safe doors and the like
IPC: E05B37/16
Filed: 1963-03-04
Abstract: 1,009,385. Permutation locks. Y. MATHIEU March 4, 1963 [March 13, 1962], No. 8472/63. Heading E2A.  A permutation lock comprises a bolt actuating rack 1 operated by a gear wheel 2 secured on a rotatable spindle 4 which also carries a locking wheel 20 which may be locked in position by a series of pins 25 disposed between teeth of the wheel 20. Each pin 25 has a recess 27 arranged asymmetrically as shown and may be placed in its slot through an aperture 33 in gear wheel 2 with either face 28 or 29 first depending on the required combination. The pins are moved in their slots by axial movement of the shaft 4 with gear wheel 2 and in this position the pins inserted with faces 29 first will have their recesses opposite the wheel 20 whereas pins inserted with their faces 28 first may be moved by push-buttons 42 into the position shown in order to align their recesses with the wheel 20 and thereby render the wheel 20 turnable. An anti-picking plate 22 has notches 51 in which the push-rods 45 engage without clearance. To open the lock without knowledge of the combination, after removal of the outside parts 9 and 37 of the lock and the push-rods 45, slots 30 in the faces 28 locate the pins which require to be moved. Instead of being of rectangular section, the pins may be round with a circumferential groove to form the recess 27. A weakened part 12 is incorporated in the spindle 4 to break when excessive pressure is applied to the spindle.
Patent GB-558384-A (GB)
Title: Improvements in or relating to lawn mowers
IPC: A01D34/54
Filed: 1941-07-07
Abstract: 558,384. Lawn-mowers. CROWE, E. C., and CROWE, V. C. July 7, 1941, No. 8573. [Class 6 (ii)] In a lawn-mower having means whereby the depth of the cut may be varied without adjusting the roller 12 relatively to the main side plates, the ground wheels 16 Fig. 2, are rotatably mounted on a pair of auxiliary side plates 18 adapted to swivel relatively to the main plates 6 about the axle 17 of the cutters 5, the auxiliary plates being provided with hollow bosses 21 on which the wheels 16 revolve and through which pass bolts 38 movable within arcuate slots 40, Figs. 3 and 40, in the main plates 6. In the construction shown, the swivelling plates 18 are adjusted and maintained in any adjusted position by means of a worm 29 operated by a nut 32 and shaft 30 and engaging a toothed gear 27 carried by a shaft 26, which passes through arcuate slots 34 in the plates 6 and is fitted at its ends with pinions 35 coacting with toothed racks 36 fixed to the auxiliary plates 18. For the purpose of relieving the cutter axle 17 from strain, the plates 18 may be furnished with substantial bosses 19 pivotally engaging within cup bearings 20 in the main plates 6. Modifications are described in which the auxiliary plates are retained in the adjusted position by means of spring bolts carried by the plates 6 and co-operating with series of holes disposed in an are about the cutter axle 17 as centre.
Patent GB-109768-A (GB)
Title: Improvements in Motor-cycle, Cycle, and analogous Saddles and Seats.
Inventor: BROOKS BOULTBEE
IPC: B62J1/02
Filed: 1917-06-15
Abstract: 109,768. Brooks, B. June 15, 1917. Saddles and seats for motor-cycles, cycles, &c., comprising a rigid top 6, a base bracket 1, a rigid lever 3 pivoted at its forward end to the front of the base bracket and at its rear end to the seat top, a spring 7 between an intermediate point on the lever and the forward portion of the top, and springs such as 8, 9 for supporting the seat at the rear, have the depending thrust-rods 10 for operating the rear springs hinged at their upper ends to the seat top at the back thereof. The rods 10 are formed by the limbs of an inverted V-shaped member, the cross-bar 11 of which turns within bearing-sleeves 12 fixed to the underside of the rear portion of the top. Instead of the rear springs being of the compound tension and compression type, they may be of the simple tension or compression type, or of any other kind operated by the thrust-rods.
Patent GB-1340985-A (GB)
Title: Chrominance saturation control circuit
IPC: H04N9/68
Filed: 1972-02-24
Abstract: 1340985 Gain control; television MATSUSHITA ELECTRONICS CORP 24 Feb 1972 [5 March 1971 8 March 1971] 8594/72 Heading H4R  A chrominance saturation control circuit comprises a first differential amplifier having two transistors 10, 11 a chrominance saturation control D.C. voltage being coupled, via terminal 9 to the base of one of the transistors, two current to voltage converting transistors 16, 17 connected to the respective collectors of the first transistors 10, 11, two emitter follower transistors 18, 19 connected to the respective emitters of the transistors 16, 17, and a second differential amplifier having two transistors 5, 6, the voltages on the emitters of the two emitter followers 18, 19 being differentially coupled to the second differential amplifier. A chrominance signal is coupled-in the embodiment, from terminal 1, via common transistor 2-to the emitters of the two transistors 5, 6, the collector of one transistor 6 being connected to an output terminal 8 at which a chrominance signal controlled by the D.C. voltage at terminal 9 appears. In the embodiment, a further differential amplifier comprising transistors 25, 26 is provided, also controlled from the emitter-followers 18, 19, the collectors of transistors 6, 26 being connected together so that the D.C. level in the output does not change as the D.C. voltage at terminal 9 changes. Transistors 22, 27 form common emitter loads for the differential amplifiers 10, 11 and 25, 26 respectively: the transistors 2, 22, 27 are provided with a fixed bias from terminal 32. According to the Specification the arrangement is of use other than in chrominance control circuits.