baber/WOPTO huggingface dataset:
Patent GB-255900-A (GB)
Title: Manufacture of azo-dyestuffs
IPC: C09B29/20
Filed: 1926-07-26
Abstract: 255,900. I.G. Farbenindustrie Akt.- Ges., (Assignees of Farbwerke vorm. Meister, Lucius, & Br³ning). July 25, 1925, [Convention date]. Addition to 231,529. Monoazo dyes; lakes.-Azo dyes are produced in substance, on a substratum, or on the fibre by coupling with 2 : 3-oxynaphthoic arylides the diazo compounds derived from bases of the general formula where R1 is an alkyl, aralkyl or aryl group, R2 an aryl group, and R3 an alkyl or aralkyl group; the products give redder hues than those obtained from the dvestuffs described in the parent Specification. In examples, 4-benzenesulphomethy]- amino-2-amino-1-anisol is diazotized and coupled with 2 : 3-oxynaphthoic-5-chlor-2-toluidide to produce the dyestuff in substance, or cotton is prepared with the component and dyed by treating with the diazo solution; bright claret-red tints are obtained. Similar dyestuffs are obtained by using other bodies of the above general formula e.g. the 4-mono- or dichlor-benzenesulphomethylamino-2-aminoanisols as diazo components, or by coupling with other 2 : 3-oxynaphthoric arylides. Specification 248,766 is referred to. The Specification as open to inspection under Sect. 91 (3) (a), comprises also a table showing the shades obtained from the dyestuffs from the following components :-4-benzenesulphomethyl. amino-2-amino-1-anisol and 2 : 3-oxynaphthoic-otoluidide; 4-chlorbenzenesulphoamino-2-amino-1- anisol and the o-toluidide or a-naphthylamide; 4- naphthalene - #- sulphomethylamino-2-amino-1- anisol and the 5-chlor-2-toluidide, 4-chlor-2-anisidide, and a- and #-naphthylamide ; 4-naphthalene - asulphomethylammo-2 - amino-1- anisol and the 4-chlor-2-anisidide and #-naphthylamide; 4- toluene - sulphomethylamino - 2 - amino - 1 - anisol and the o-toluidide, 4-chlor-2-anisidide, and alpha- and #-naphthylamide; and 4-toluene-sulphobenzylamino-2-amino-1-anisol and the 5-chlor-2- toluidide and #-naphthylamide. This subjectmatter does not appear in the Specification as accepted. 2-Amino-4-arylsulpho-alkyl (or aralkyl) amino- I-alkyl (aralkyl, or aryl) oxybenzences are obtained by causing an arylsulphochloride or a substitution product thereof to act on a 4-amino-2-nitro-1-alkyl (arlkyl, or aryl) -oxybenzene, alkylating or benzylating the product and reducing.
Patent GB-961786-A (GB)
Title: Improvements in or relating to vehicle suspension systems
IPC: B60G21/05
Filed: 1962-05-16
Abstract: 961,786. Beam axle suspensions. FORD MOTOR CO. Ltd. May 16, 1962 [June 30, 1961], No. 18821/62. Heading B7D. A vehicle suspension system comprises a pair of transverse arms 40 pivotally connected to a yoke-shaped spring leaf 32 to provide resilient lateral location of a beam axle 10 and a pair of trailing arms 18 which are preferably splayed to provide understeer when the axle is moved laterally of the vehicle body. Mounted between each arm 40 and the body 30 to support the vehicle weight is a helical spring, a longitudinal torsion rod or a torsionally loaded longitudinal spring leaf (Figs. 4 to 6, not shown). An inclined link 24 (Fig. 3) is provided on the right-hand side of the differential housing 14 to oppose engine torque reaction on the body during acceleration.
Patent GB-390683-A (GB)
Title: Improvements in mattress tufting devices or buttons
IPC: B68G7/08
Filed: 1932-07-04
Abstract: 390,683. Tufting upholstery. DROLL, J. W. and OLSON, A. H., 341, East Ohio Street, Chicago, U.S.A. July 4, 1932, No. 18830. [Class 52 (iv).] Tufting buttons comprising a hollow stem 8 inserted into the mattress and an outwardly extending flange 9 on the mattress surface accommodate a loop of the thread passing transversely through the mattress beneath the flange from which position the thread enters the hollow stem. A slot 11 in the flange and a notch 12 in the stem enable the loop which is pushed up the stem from the open inner end 8<1> to be passed over the flange and drawn tight. The stem opening is wide enough to provide an air passage for ventilation of the mattress filling. In one form the stem notch is so shaped as to secure a free end of the tufting or thread within the stem and in another an annular groove is provided between flange-and stem to receive the loop.
Patent GB-953723-A (GB)
Title: Apparatus for intensifying light
IPC: H01S3/20
Filed: 1960-04-01
Abstract: 953,723. Lasers. TRG Inc. April 1, 1960 [April 6, 1959], No. 18832/63. Divided out of 953,721. Heading H3B. Lasers described in this Specification are described also in Specification 953,725 but the claims are concerned with a laser in which light reflectors converge the emitted light on a closed path. Only spherical reflectors are described. In one arrangement, two light amplifying laser devices 307, 308, Fig. 6, have their outputs focused on to photo-sensitive device 315. The difference frequency is detected by the photosensitive device and is indicated at 316. A laser device may be used with a known Michelson interferometer (Fig. 7, not shown). Specifications 953,722, 953,724, 953,726 and 953,727 also are referred to.
Patent GB-201379-A (GB)
Title: Fire extinguishing agent
IPC: A62D1/00
Filed: 1922-07-10
Abstract: 201,379. Eckelmann, L. E. July 10, 1922. Chemicals and substances. - An emulsion formed of a plurality of polychlorinated hydrocarbons of different specific gravities is added to one of the reagents employed in the generation of fire-extinguishing foam, so that the latter is capable of supplying an air-excluding blanket of non-inflammable vapour over the fire, even if itself destroyed by the heat. Carbon-tetrachloride may be employed together with one or more lighter chlorinated hydrocarbons and an emulsifier, such as saponin, soap, gum-arabic etc.; and one to three per cent of light oils may be added to increase the permanency and fluidity of the emulsion. The emulsion is mixed with a foamproducing reagent (such as a solution of aluminium sulphate, to be afterwards mixed with sodium bicarbonate solution), so concentrated as to have a specific gravity approximately equal to that of the emulsion.
Patent GB-571450-A (GB)
Title: Improvements in tube couplings
IPC: F16L19/10
Filed: 1943-11-13
Abstract: 571,450. Pipe joints. PARKER, A. La R. Nov. 13, 1943, No. 18930. [Class 99 (i)] The end of a cylindrical sealing ferrule 26 which is rolled over to form an abutment 27 of semi-circular formation is engaged by an inclined surface 19 of a coupling nut 17 and then by a radial surface 20 which forces the ferrule on to the tapered end 14 of a recess 15 in the socket 10 and thereby deforms the end of the ferrule into the recess 23 in the pipe which seats on a ridge 12 in the base of the socket. The ferrule may have a plurality of longitudinal slots extending from either end. Specification 540,038 is referred to.
Patent GB-151779-A (GB)
Title: Improvements in fire tube steam boilers
IPC: F22D7/10
Filed: 1920-01-22
Abstract: 151,779. Todd, I. Jan. 22, 1920. Water-circulation, apparatus for promoting.- To promote the water-circulation in a fire-tube boiler, a circulating-pump a is placed inside the boiler near the normal water-level, and is so connected by a suction pipe b to the bottom of the water space that water is drawn upwards and discharged at or near the tops of the furnaces. In a marine boiler, the pump is placed above the combustion chambers. The pump may be driven mechanically or by a turbine mounted on the pump spindle and driven by steam from the boiler.
Patent GB-439520-A (GB)
Title: Improvements in or relating to electric arc atomic hydrogen heating torches
IPC: B23K28/02
Filed: 1934-06-27
Abstract: 439,520. Supply systems for welding- arcs. GUEST, A. L., Epperstone, Fairy Road, Wrexham, Denbighshire, and ASSOCIATED ELECTRICAL INDUSTRIES, Ltd., Crown House, Aldwych, London. June 27, 1934, No. 19058. [Class 38 (iv)] Two or more electric arc heating or welding torches in which a current of gas such as hydrogen is passed through the arc are connected to a source of A.C. with pairs of arcing electrodes 1, 2 and 3, 4 in series with one another and with a common inductance 5, the circuit being completed through the secondary of a transformer 7 and switches 6. The torches may each include a pair of electrodes as described in Specifications 426,090 and 427,056, [both in Group XI], or a multiflame torch with two or more pairs of electrodes may be used as described in Specification 427,836, [Group XII]. The electrodes are individually adjustable so that they may be short circuited and the arcs thus struck serially. Specification 21703/00, [Class 38], also is referred to.
Patent GB-1035498-A (GB)
Title: Pressure-sensitive copy-forming sheets
IPC: B41M5/10
Filed: 1963-05-14
Abstract: Paper sheets for the simultaneous production of an original and copies have on their two sides thin layers of different types. One layer is friable and micorporous so that when sheets are superposed and local pressure applied this layer is transferred at the areas pressed to the other sheet.  The other retaining layer may be also microporous but has a greater strength than the transferable layer, or it may be slightly adhesive.  In one embodiment, the transferable layer has a colour different from that of the paper, or that of a coloured non-transferable coating layer underlying the transferable layer, is that the local removal of donor layer leaves a legible mark.  In a second embodiment, transferable layer overlies a coloured layer to which it adheres more strongly than the coloured layer adheres to the paper.  On the application of pressure they are transferred together to form a legible mark on the retaining layer. In a third embodiment, the transferable and retaining layers differ in colour, so that the transferred portions of the transferable layer form a legible mark.  The transferable layer may be of an organic film former e.g. polyvinyl acetate chloride, made friable by a non-crystalline filler, e.g. talc.  Alternatively it may be made friable by deposition from a solution in a volatile solvent mixed with a less volatile non-solvent liquid.  The retaining layer may be of a slightly plasticized resin e.g. an acrylic resin, polyvinyl acetate chloride, polyvinyl propionate, polyvinyl acetate or shellac, or of an adhesive wax doped with butyl rubber.  The intercalated colouring layer, if any, may be of lamp black and a wetting agent, or black wax.
Patent GB-381219-A (GB)
Title: Improvements in shot gun tracer cartridges
IPC: F42B7/04
Filed: 1931-07-02
Abstract: 381,219. Shot gun tracer cartridges. IMPERIAL CHEMICAL INDUSTRIES, Ltd., Millbank, London, JACKSON, H. E., 20, Wake Green Road, and BROWNSDON, H. W., 43, St. Agnes Road, both in Moseley, Birmingham. July 2, 1931, No. 19099. [Class 9 (i).] Relates to s h o t cartridges containing a tracer pellet 9, Fig. 1, in the centre of the base of the shot charge 7, and consists in mounting this pellet independently of the wads 4, 5, 6 in a thin disc 8 having a circular or polyhedral periphery which centres the disc in the cartridge, or in a skeleton frame 11, 12, Fig. 4, or a wire ring 13, 15, Fig. 5. The tracer pellet may be ignitable by concussion or by a flash ; in the latter case, the mounting and the wads are provided with a central hole for the passage of the flash.
Patent GB-1478961-A (GB)
Title: Instruments for calculating yacht sailing parameters
IPC: G01C21/20
Filed: 1974-05-14
Abstract: 1478961 Determining sailing performance electrically EMI Ltd 14 May 1974 [19 April 1973] 19156/73 Heading G1N [Also in Division G4]  An indicating instrument providing signals representing an approximate value of the angle α between the direction of motion of a marine vehicle and the true wind direction, by computation from signals representing V s  = speed of the vehicle through the water; V a  = apparent wind speed relative to the vehicle; # = the angle between the apparent wind direction and the direction of vehicle motion, as measured on the vehicle; comprises: divider means forming signals representing V s /V a ; predetermined function means for generating values of one of a plurality of predetermined functions f(V s /V a ) in response to the divider means, each predetermined function being chosen to satisfy for a respective one of a plurality of ranges of #; multiplier means forming signals representing the product of the generated function and the value of #; and means for selectively causing the predetermined function means to generate values of different ones of said plurality of predetermined functions, appropriate to values of # within the respective ranges. The precise value of α is given by which may be deduced by trigonometry from the vector diagram of Fig. 1; but for practical values of the variables, e.g. V s  in the range zero to 0À6V a , a good rule of thumb is given by is a function having a few simple forms, e.g. linear or exponential, corresponding to respective broad ranges of #, as may be appreciated from Fig. 9. Signals representing V s  and V a , derived e.g. from known vane-driven pulse tachometers, are applied as in Fig. 6 to a quotient circuit 4, calculating the ratio V s /V a , followed by a function generator 5, e.g. a diode function generator, generating f(V s /V a ). This signal is multiplied, in a circuit 6, by a signal representing # and provided e.g. by a wind vane controlling a signal transmitter, the otuput being supplied to a meter 7 as an approximate analogue of the angle α. Other calculating circuits Figs. 7, 8 (not shown), may be provided to generate signals representing V mg , the vehicles speed made good to windward, and V t  the true wind speed over the water surface, according to: Cos α is generated from the approximate analogue of α by a cosine function generator (10), Fig. 7. Cos # is derived by a Scott-connected transformer connected to three terminasl of a synchro transmitter responsive to the wind-vane.
Patent GB-185907-A (GB)
Title: An improved chamber or safe for keeping foods cool in hot weather, and for like purposes
IPC: F25D7/00
Filed: 1922-03-14
Abstract: 185,907. Bell, H. H. March 14, 1922. Refrigerators, domestic and like.-A cooling- chamber or safe comprises a skeleton wood frame with walls m of canvas or other porous material kept moist by means of strips of flannel or like material r dipping into water in a zinc or other tray q, resting within the top members of the frame below the upper edges of the canvas walls, so that the longer ends of the flannel strips are within the tray. The canvas &c. is preferably spaced from the woodwork by metal cornerpieces, and may be nailed on. Drip is collected in a zinc or other gutter k and led away. The walls are protected by outer sheets t of perforated metal spaced from the canvas. The interior may 'be fitted with shelves, and the frame is provided with legs j.
Patent GB-516549-A (GB)
Title: Improvements in paring or coring tools for fruits and vegetables
IPC: A47J17/02
Filed: 1938-06-28
Abstract: 516,549. Peeling vegetables &c. MURDOCE. J. A. June 28, 1938, No. 19175. [Class 28 (ii)] A peeling-device comprises a blade assembly consisting of a cutter 14 and a gauge bar 15 pivotally mounted in a handle 10. The handle is formed from a metal strip the ends of which are welded together at 11. The blade assembly is concave in section and the part 14 thereof is flattened and sharpened along the side of the slot 16. The end 21 is formed to serve as an eye or core remover and the other end is welded or otherwise secured to a rod 22 which is revoluble in holes in the handle, the rod being retained in position by deformations 23, 24. In a modification, the blade assembly comprises two opposed cutters, the one or the other serving as a gauge accordingly as the device is used right or left-handedly.
Patent GB-402699-A (GB)
Title: Rotary electric switch
IPC: H01H19/11
Filed: 1933-07-06
Abstract: 402,699. Snap-action switches. UNROC SOC. ANON., 106, Parc, La Chaux-de-Fonds, Switzerland.-(Assignees of Cornu & Co.) July 6, 1933, No. 19198. Convention date, July 7, 1932. [Class 38 (v).] In a quick-action rotaryswitch, the contactcarrying member 8 has recesses in its under surface for the reception of balls 22 ; when the member 8 is rotated the balls 22 ride over other balls 21 mounted in recesses in the base, the member 8 moving upwards against a spring 12 and then being quickly moved downwards by the spring into its next switch position. In each switch position, each ball 22 or 21 lies between two balls 21 or 22. The upper part of the member 8 is of square section and carries loosely the bridging member 9 so that this may be readily replaced by another. The arms of the bridging member 9 engage grooves 14 arranged crosswise in a cover member 13, so that the member 9 rotates when the cover 13 is rotated. The cover 13 also carries a coloured disc 19, or a disc of glass with wall paper behind it to match the papering of the room, and a coloured ring 20 may be similarly mounted round the base. In a modification, Figs. 4 and 5, (not shown) the number 13 does not itself constitute the cover but is mounted within a fixed cover and a portion of it projects through a hole in the cover and is there fixed to a handle. In other modifications, Figs. 6 and 7 (not shown) the fixed and movable contacts have co-operating roof- or saddleshaped surfaces.
Patent GB-185578-A (GB)
Title: Improved mineral product for use as an abrasive, polish and the like
IPC: C09K3/14
Filed: 1921-07-16
Abstract: Hydrated magnesium silicates of the serpentine type containing 3-5 per cent of iron are calcined at a bright red or white heat and ground for use as an abrasive or polish.  Reference has been directed by the Comptroller to Specification 2321/83, [Class 60, Grinding or abrading &c.].
Patent GB-1377348-A (GB)
Title: Pressure-rsponsive speed control for dental handpieces
IPC: A61C1/00
Filed: 1973-04-24
Abstract: 1377348 Dental handpieces AMERICAN HOSPITAL SUPPLY CORP 24 April 1972 [12 June 1972] 19279/73 Heading A5R [Also in Division Fl] A dental handpiece comprises a workhead 12 and a handle 11 on which is located a pliant chamber 23 having an inlet communicating with a gas supply line 28 and with pressure responsive means 20, 21 controlling the operating speed of the workhead, the chamber 23 having an outlet port 29 remote from said inlet which is substantially smaller than the inlet to create positive pressure within the chamber when gas is supplied thereto. The work head is driven by an air turbine to which drive air is supplied from a passage 19 through a spring-loaded valve 18 controlled by a diaphragm 21 which forms part of the pressure responsive means, the diaphragm 21 being moved downwardly to open valve 18 when the chamber 23 is squeezed by the dentist. The chamber 23 may be formed in two sections 23a, 23b interconnected by a passage 27 and comprising inner and outer walls 24, 25 sealed together along contact lines 26. The distal chamber section has the outlet port 29 formed therein, this port communicating with an exhaust passage 30 in the handle as shown or being directed outwardly for direct discharge to atmosphere. The chamber 23 may be formed by coils of resilient tubing extending about a portion of the handle.
Patent GB-459185-A (GB)
Title: Improvements in or relating to sprouting or spritting boxes for potatoes and the like
IPC: A01C1/02
Filed: 1935-07-06
Abstract: 459,185. Sprouting-boxes. FERGUSON, C. S. R., 119, Dudley Road, Whalley Range, Manchester. July 6, 1936, No. 19332. [Class 18] [See also Group I] A sprouting-box for potatoes &c. has all or part of one of its ends or sides made removable or hinged to provide an opening through which the tubers may be withdrawn by hand without lifting them over the side or end of the box. An opening in a side d may be provided with a door y hinged on a horizontal pin g and normally resting on a stop peg i. The door may be turned back to rest on a peg j which enters a slot k. The box comprises the usual shallow tray having a floor a, ends b, and sides c, d with corner posts e and cross-bars or handles f. In modifications, the door y has a vertical or horizontal hinge and a catch for holding it closed. In. another, the door y slides on the side d, being guided by a peg in a groove. The door may be arranged to form a shoot, or inclined floor. A shoot plate p, Fig. 5, provided with converging guides and hooks r may be hooked to loops s.
Patent GB-1168926-A (GB)
Title: Motor Vehicle Power Plants
Inventor: ISSIGONIS ALEXANDER ARNOLD
IPC: H02K7/108
Filed: 1967-04-27
Abstract: 1,168,926. Friction clutches. BRITISH MOTOR CORP. Ltd. 17 July, 1968 [27 April, 1967], No. 19410/67. Headings F2C and F2L. [Also in Division H2] In a motor vehicle having disposed transversely therein a power plant comprising as an integrated assembly an I.C. engine, a diaphragm-spring type of clutch 1 and other power transmission mechanism, e.g. change-speed gearing, final-drive differential gear assembly, and universably-jointed drive-shafts, the plant incorporates an A.C. generator 10 which has its stator 11 mounted in the clutch housing 12 and its rotor 13 mounted on supporting means both coaxial and rigid with the clutch pressureplate 7, such generator and supporting means being located at that side of the engine flywheel 6 which is remote from the crank-shaft 5. The supporting means, a plate 15, is bolted at 17 to the plate 7 which is coupled to the flywheel 6 by driving pins 8 and straps 9. An hydraulic servo 24 having an adjustable backstop 25 actuates a clutch release bearing 21 to move the plates 15, 7 axially to disengage the clutch, the clutch driven plate 2 being splined to a crank-shaft primary gear 4.
Patent GB-223335-A (GB)
Title: Improvements in stoppers for water mains and the like
IPC: F16J13/06
Filed: 1923-07-30
Abstract: 223,335. Sharrocks, J. July 30, 1923. Stopping pipes.- A stop for pipes comprises a collar 1 adapted to be clamped to the pipe behind the socket or flange and a cast metal stop plate 11 with an internally projecting flange 13 to fit the pipe socket or pipe end and with slotted lugs 12 to receive the clamping-bolts 7 pivoted to corresponding lugs on the collar. A packing-ring 16 formed of metal surrounded by hemp is placed between the stopper and the end of the pipe. Holes for drainage and vent are provided in the stop plate and closed by plugs.
Patent GB-685234-A (GB)
Title: Engine starting or other cartridges
Inventor: MILLNS TERENCE WILLIAM
IPC: F42B3/04
Filed: 1950-08-04
Abstract: 685,234. Engine - starter cartridges. ROTAX, Ltd. July 12, 1951 [Aug. 4, 1950], No. 19495/50. Class 9(i) An engine-starting cartridge has a case a with a hollow head b surrounding metal tubes c through which the gases from the propellant d are discharged. The space surrounding the tubes is filled with water, to which substances may be added to lower the freezing point. The outer ends of the tubes are closed by a metal disc e held in position by an annular cover f and a central screw g. The disc e is blown off when the charge is ignited. A fusible plug or plugs h close the region containing the water until melted by the hot gases. The water on release is converted into steam and mixing with the gases lowers their temperature to prevent damage to engine parts such as turbine blades. In an alternative construction an annular water chamber surrounds the propellant chamber.
Patent GB-237924-A (GB)
Title: Improvements in or relating to electro-ionic discharge tubes
IPC: H01J1/14
Filed: 1925-07-31
Abstract: 237,924. Edison Swan Electric Co., Ltd., (Assignees of Radio-R÷hren-Laboratorium Dr. G. Nickel Ges.). Aug. 1, 1924, [Convention date]. Void [Published under Sect. 91 of the Act]. Drawings to Specification. Low-pressure metallic-vapour apparatus. - Highly electropositive metals, for example the alkali metals sodium, potassium, rubidium, and caesium, or the alkaline-earth metals calcium, barium, and strontium, are introduced into a discharge tube in order to absorb gas and facilitate the formation of electrons and positive metal ions. The metals are deposited in the form of mirrors. Compounds and mixtures of such metals, with or without the addition of other substances, may alternatively be employed.