baber/WOPTO huggingface dataset:
Patent GB-498241-A (GB)
Title: The manufacture of azodyestuffs
Filed: 1937-07-14
Abstract: Azo dyestuffs are manufactured by coupling an o-diazophenol with an acylaminonaphthol of the general formula <FORM:0498241/IV/1> where X is a halogenated aliphatic radicle containing more than one carbon atom, the components being so selected that the azo dyestuff formed contains at least one sulphonic acid group. Alternatively an o-diazophenol is coupled with an aminonaphthol and the resulting aminoazo dyestuff is treated with the chloride or anhydride of a halogenated fatty acid containing more than two carbon atoms, including the commercial mixtures obtained by the action of chlorine or bromine on propionic or butyric acid chloride.  The products may be converted on the fibre into metal compounds.  Examples describe the production of the following dyestuffs: (1) 4-methyl-6-nitro-2-aminophenol --> 2-(b -chloropropionylamino)-8-naphthol-6-sulphonic acid; the product dyes wool from an acid bath reddish-violet shades becoming reddish-grey on after-chroming; the diazo component may be replaced by 4-chloro-6-nitro-2-aminophenol; (2) 4-chloro-5-nitro-2-aminophenol --> the same coupling component (dark red shades becoming bluish-grey); the diazo component may be replaced by 4-methyl-5-nitro-2-aminophenol or 5-nitro-2-aminophenol, and the coupling component by b -chloropropionyl-1 : 5 : 7- or 2 : 5 : 7-acid; (3) 4-chloro-6-nitro-2-aminophenol --> b -chloropropionyl-1 : 3 : 6-acid (grey after-chromed shades); the coupling component may be replaced by b -chloropropionyl-1 : 6 : 3- acid, b -bromopropionyl-1 : 3 : 6-acid or derivatives of 1 : 3 : 6-acid substituted in the amino group by radicles of chlorinated butyric acids; (4) 4-chloro-2-aminophenol-6-sulphonic acid --> b -chloropropionyl-1 : 3 : 6-acid (navy-blue shades); the diazo component may be replaced by 4-chloro-2-aminophenol; (5) 4-chloro-5-nitro-2-aminophenol --> b -chloropropionyl-1 : 6 : 3-acid (bluish-grey shades); (6) 4-methyl-6-nitro-2-aminophenol --> b -chloropropionyl-1 : 7 : 3-acid (red shades becoming neutral grey); the diazo component may be replaced by 4-sulpho-2-aminophenol, 4-chloro-6- or 5-nitro-2-aminophenol, or 4-chloro-2-aminophenol; (7) 5-nitro-2-aminophenol --> b -chloropropionyl-1 : 7 : 4-acid (red shades becoming greenish grey); (8) 4-methyl-6-nitro-2-aminophenol illegible data 1 : 7 : 3-acid, the product being treated with b -chloropropionic acid chloride in the presence of sodium acetate or bicarbonate.  Specifica tions 25903/11, 2956/12, 12250/15, [all in Class 2 (iii)], 341,461, and 490,389 are referred to. Acylaminonaphthols of the general formula given above are obtainable by the action of chlorides or anhydrides of halogenated car boxylic acids containing more than two carbon atoms on aminonaphthols or their sulphonic acids in the presence of acid-binding agents such as sodium acetate or bicarbonate, chalk or sodium carbonate.
Patent GB-147626-A (GB)
Title: Improvements in gearing belts or chains
IPC: F16G1/24
Filed: 1920-07-08
Abstract: 147,626. National-Antrieb-Ges. June 6, 1916, [Convention date]. Belts.-A driving-belt of flat or V section is composed of alternate links of raw hide and steel, the raw hide being covered bv soft leather. Fig. 1 shows a flat belt having steel links 1 formed with joint pins 2 passing through raw hide links 4 and into soft leather pieces 5, the whole being connected by rivets 6. Angle-pieces 7 may be applied to the edges of the belt. Only the soft leather comes into contact with the pulley. Fig. 18 shows a section of a V belt in which the raw hide 4<a> is folded round the steel links 1 and fastened by rivets 6 to the soft leather pieces 8.
Patent GB-165340-A (GB)
Title: Improvements in and relating to couplings for lubricating apparatus
IPC: F16N21/04
Filed: 1920-07-08
Abstract: 165,340. White, A. E., (Bassick Manufacturing Co.). July 8, 1920. Swivelling and bayonet joints cup-leather joints.- A detachable swivel coupling for lubricating apparatus comprises a plug 10 mounted rotatablv on a tubular member 8 secured to a flexible conduit 7 leading from a grease gun. The plug is screwed into a sleeve 17 which is connected by a bayonet-joint 28 to a nipple 21 secured to a bearing. A gasket 13, held against the end of the plug by a washer 14 over which the end of the tube is swaged, seals the swivel joint. A spring-pressed cup-leather 20 is mounted in the sleeve and rests on the nipple. The sleeve is formed with a shoulder 19, against which the cup-leather 20 is held by the spring when the coupling is disconnected. The nipple member 21 is provided with a spring-controlled ball valve 27.
Patent GB-1003288-A (GB)
Title: Improvements relating to transistor circuits
IPC: H03D7/12
Filed: 1962-05-23
Abstract: 1,003,288. Transistor high-frequency amplifyirig and mixer circuits. TELEFUNKEN PATENTVERWERTUNGS G.m.b.H. May 23, 1962 [June 2, 1961], No. 19747/62. Heading H3T. In a transistor high-frequency amplifier or mixer stage capable of being tuned over a wide range of frequencies, the input electrode of the transistor is coupled to the output of a preceding oscillatory circuit or band-pass filter by means of a series inductance whose reactance is small at the lower end of the range of frequencies over which the circuit is operative and greater at the higher end of the range so as to maintain the input impedance presented by the transistor to the oscillatory circuit or band-pass filter substantially constant over the whole frequency range. As shown in a mixer stage for a television receiver covering both bands I and III, radiofrequency tuning coils 1, 3 may either be permeability-tuned or switched-tuned to enable the circuit to cover the entire frequency band. At the upper end of the frequency band the transistor presents a low input impedance at its emitter; however, by means of inductor 7 the load presented to the output of the bandpass filter remains substantially constant so enabling the desired bandwidth in the filter to be maintained. The circuit is not limited to the grounded-base configuration shown.
Patent GB-243066-A (GB)
Title: Improvements in and relating to perfume pump sprayers, hair oil pump sprayers and the like
IPC: B05B11/00
Filed: 1924-08-21
Abstract: 243,066. Vale, F. W., and Charles, P. A. Aug. 21, 1924. Single-acting piston pumps; suction reservoirs.-A sprayer for scent, &c. comprises a cap 18 fitting on the mouth of a container, a pump barrel 16 secured to the cap, a delivery tube 3 passing through the cap and a piston 5 Concentrically and slidably mounted on the tube. The Piston has a washer 6 on ibs working side and the piston-rod is a tube 17 concentric with the tube 3 which is held in a slotted member 12 screwed into the bottom of the barrel which has a suction ball valve 8.
Patent GB-220162-A (GB)
Title: Improvements relating to lubricating apparatus
IPC: F16N21/04
Filed: 1923-08-02
Abstract: 220,162. Partridges, Ltd., and Mills, H. Aug. 2, 1923. Couplings, disconnectible; with valves. - A grease gun comprises a cylindrical body 1 provided at one end with a connector 2 having a delivery pipe 3, and at the other end with a rotatable and axially movable sleeve o for engaging with the usual nipple m. Within the bore of the cylindrer 1 is arranged an axially movable piston 8, provided on one face with a leather jointing disc 11 for co-operating with the face of the nipple m, and on the other face with a cup-leather 9 and a stem 10 which is adapted to open a spring- pressed valve 5 when connection with the nipple is made. Grease can pass through the piston by way of a radial and an axial passage 12. The sleeve o is formed with an eccentric aperture p to engage with a groove n in the nipple, while an inclined groove in the sleeve engaging a peg 13 on the cylinder causes the rotational movement thereof to be accompanied by a small axial movement. Specification 134,839 is referred to.
Patent GB-750764-A (GB)
Title: Device for turning piped garment openings
IPC: A41H31/00
Filed: 1954-07-07
Abstract: 750,764. Turning inside out flexible articles. FAIRWEATHER, W. C. (Singer Manufacturing Co.). July 7, 1954, No. 19877/54. Class 112. A device for inverting the edges of a piped buttonhole or other garment opening from the form shown in Fig. 15 to the finished form comprises an elongated member, to pass through the opening, with walls adapted for non- slipping engagement with the edges of the opening so that on withdrawal of the device the edges are drawn through the opening. In Fig. 15 a slit 26, with forked ends to form tabs 27, has been formed in the garment fabric 25 and piping strips 20 have been placed at each side of the slit, folded to the form shown, and secured to the fabric 25 by stitching 22. The shank 120, Fig. 10, of the turning device is angularly adjustable on base members 122 by which it is secured to a table so that it is conveniently placed for the workto be passed down over it and then removed. Secured to each side of the shank 120, with their tops at a lower level, are plates 124, 125, 126 formed and arranged so that when the work is removed, after having been passed down to the. lower part of the shank, first the upstanding edges of the piping strips pass between the shank and the plates 125 and are carried through the garment aperture by the lower ends of these plates, recesses 127 in the shank accommodating the consequent inturning of the ends of the piping stripe; then these end portions are turned through the aperture by teeth 130 on the shank 120 and plates 124, the plates 125 being recessed at 134 to provide the necessary clearance; and finally the folded edges of the piping strips, upstanding in the aperture, are carried down by the lower edges of the plates 126 to cause the piping strips to turn up and lie beneath the garment fabric, the edges of which are thereby folded in. In an alternative form, Figs. 1 and 2 (not shown), the shank 120 is smaller in cross-section, and is surrounded by a flexible tubular member secured at the lower end to the shank and closed at the upper end to be supported by the shank; the tubular member is preferably of latex, to give a high coefficient of friction with the piping and garment fabrics, the parts of which are drawn through the aperture by frictional engagement with the tubular member.
Patent GB-237440-A (GB)
Title: Improvements in or relating to loom shuttles
IPC: D03J5/24
Filed: 1924-08-22
Abstract: 237,440. Murphy, H. A. Aug. 22, 1924. Shuttles.-The thread-eye C<1> and kissing "- preventing eyes D, E open into a deep groove B receeesed within the usual groove A'. The eyes D, E communicate respectively with the threading cavity C and the tensioning cavity F<1>. More than one eye may be provided on either side of the eye C<1>. A boss on the resilient mouthpiece G of a mechanical suction device fits in the groove B, and has a suction-hole G<1> communicating with the eye C'; projections on the boss may plug the eyes D, E, and ribs on the mouthpiece G fill the groove A<1>. A steel pin may extend across the preferably serrated inner end of one or both eyes D, E as an additional safeguard. Indicating- means may be provided above and below the eye C<1> for use in applying the mouth-piece G.
Patent GB-370278-A (GB)
Title: Improvements in or relating to processes for the production of ammonium nitrate
IPC: C01C1/18
Filed: 1931-07-10
Abstract: Solid ammonium nitrate is obtained by reacting highly concentrated nitric acid and ammonia, solid ammonium nitrate being introduced before the reaction, whereby the temperature rise due to the reaction heat is reduced.  External cooling of the reaction vessel may also be provided.  Ammonia gas may be absorbed in ammonium nitrate to produce "Divers' liquid" which reacts with concentrated nitric acid or ammonia gas may be brought into contact with a mixture of concentrated nitric acid and solid ammonium nitrate.  A cylindrical vessel of aluminium may be used and stirring may take place. According to one modification, solid ammonium nitrate and concentrated nitric acid are fed continuously to one end of a closed elongated water-cooled trough provided with a stirring worm or stirring arms, ammonia gas being introduced in counter current at the other end.
Patent GB-314504-A (GB)
Title: Improvements in and relating to processes for making viscose
IPC: D01F2/08
Filed: 1929-06-28
Abstract: 314,504. Klein, F. G. C. June 28, 1928, [Convention date]. Printing with special materials.-The Specification as open to inspection under Sect. 91 (3) (a) refers to the production of patterns on cellulosic textiles, films, paper, &c., by printing with an emulsion in paste of carbon disulphide and soda lye under conditions such as will partly convert the cellulose into xanthogenate; this is afterwards decomposed to regenerate the cellulose. This subject-matter does not appear in the Specification as accepted.
Patent GB-396930-A (GB)
Title: Improvements in or relating to electric discharge tubes
IPC: A23F5/20
Filed: 1932-07-15
Abstract: 396,930. Discharge apparatus. MULLER AKT.-GES., C. H. F., 24, Rontgenstrasse, Hamburg, Germany. July 15, 1932, No. 20068. Convention date, July 22, 1931. [Class 39 (i).] In discharge tubes operating without appreciable gas ionization, an unsupported sharp edge of a metal disc, cylinder or other hollow body extending freely into the tube is covered by a coating of dielectric material directly applied to a small part only of the body. The potential gradient at the edge is thus reduced and undesired discharges from the edge prevented. The body may be of platinum or ferrochromium and the coating may be a circular glass' thickening sealed to the edge. In an X-ray tube with a metal screen 7 between the electrodes 2, 3 and a metal part 5 of the envelope, the free edge of the screen 7 has a glass thickening 8.
Patent GB-1147442-A (GB)
Title: Improvements in or relating to electrodes for electrolysis
Inventor: BEER HENRI BERNARD
IPC: C25B11/10
Filed: 1965-05-12
Abstract: 1,147,442. Fuel cell electrodes. H. B. BEER. 12 May, 1966 [12 May, 1965], No. 20133/65. Heading H1B. [Also in Divisions B2 and C7] A fuel cell electrode comprises a core of titanium which has been degreased and pickled and coated with platinum by electrodeposition (Example 12) or with platinum or platinumnickel alloy by a chemical compound decomposition process (Example 13) (see Division C7) and the platinum coating has been oxidized, e.g. to a depth of 5 to 25% of its thickness, by heating in an oxidizing atmosphere or by electrolysis.
Patent GB-716686-A (GB)
Title: Improvements relating to electrical connector devices
IPC: H01R13/58
Filed: 1952-08-11
Abstract: 716,686. Two-part couplings. CLARK, E. H. CARROL-. Aug. 11, 1952, No. 20136/52. Class 38(1). A plug connector comprises main and auxiliary body parts 2, 1 respectively, screwed together, and rotatable with respect to one another. The ends of the wires 27 to be connected are passed through passages 6 and enter an annular groove 1-7 in the top face of the part 2 in which lie the undercut edges 21 of the heads of the contact pins 18. The parts 1, 2 are then rotated with respect to each other in the direction of arrow A and the edges 21 split and tear off the insulation of the wire ends, the bared cores being gripped between the heads of the pins 18 and the bottom face of the part i. A spring-controlled ball 16a in a recess 15 in the part 2 can engage any one of a number of locating recesses 10 in the bottom face 5 of the part 1. A stop 11 on the part 1 runs in the channel 17 and limits the rotation by engagement with one of the pins 18. The wires 27 may enter the cap 1a through a resilient sleeve 28 and integral washer. 29. The screw 22 is tightened onto a resilient washer 25 to permit slight axial movement between the body parts.
Patent GB-1132904-A (GB)
Title: Improvements in or relating to coaxial connectors
Inventor: GODFREY NELSON FREDERICK JOHN
IPC: H01R9/05
Filed: 1966-05-06
Abstract: 1,132,904. Two-part couplings. BELLING & LEE Ltd. 5 May, 1967 [6 May, 1966], No. 20248/66. Heading H2E. A coaxial cable connector has a metal member 9 having in-turned portions 11 for engaging the insulating sheath and /or outer conductor, of a coaxial cable, and one or more out-turned portions 13 for resiliently contacting the inner surface of a metal portion 12 electrically connected to the outer contact 2 of the connector. The out- and in-turned portions may be equal in number and an out-turned portion may be disposed between two adjacent in-turned portions (Fig. 3, not shown). The body 5 and cap 7 of the connector may be made of insulating material or metal in which case the body 5 is integral with the metal portion 12. The central contact 1 may be of pin or socket type.
Patent GB-586396-A (GB)
Title: Improvements in or relating to drafting roller gearing
IPC: D01H5/74
Filed: 1944-10-19
Abstract: 586,396. Drafting roller gearing. CASABLANCAS HIGH DRAFT CO., Ltd., and NOGUERA, J. Oct. 19, 1944, No. 20284. [Class 120 (ii) ] The drafting roller gear pinions are supported independently of the rollers, the supporting means allowing of various adjustments but ensuring that the pinions are constantly in mesh. Drive is communicated from gear-wheel 10a by the compound pinion 58 both keyed to the same shaft 59, through the double carrier wheel 52 to middle and back roller pinions 50, 48. Middle roller pinion 50, double carrier wheel 52 and compound pinion 58 are initially mounted in a gear box 30 forming part of a carrier bracket 29 provided with a foot 31 and a quadrant arm 32 formed with arcuate slots 33, 35 struck about the axis of the middle roller pinion. A support bracket 20 is bolted to the roller beam 22, and is provided with arms 25, 26 formed with straight slots 27, 28. The carrier bracket 22 is adjustably fixed to support bracket 20 by bolts passing through the corresponding slots. The back roller support 36 is adjustably connected to carrier bracket 29 by the engagement of pivot arms 38 with the double carrier wheel bearing 43, and by means of a bolt passing through arcuate slots 40, 34 struck about the double carrier wheel axis. The middle and back roller pinions are hollow and are formed with keyways, so that the keyed middle and back roller shafts, 53, 54, supported by roll stand 55 can be slid into their respective pinions and driven therefrom.
Patent GB-480579-A (GB)
Title: Improved plug for closing pipes in wells
IPC: E21B33/12
Filed: 1937-07-22
Abstract: 480,579. Plugging well pipes. TRIGGS, W. W. (Hydril Co.) July 22, 1937, No. 20308. [Class 85] A plug adapted to be moved down through a tubular drill pipe comprises a body, radially movable means adapted to grip the inner surface of the pipe, and a radially expansible packer, the radially movable means and the packer being maintained in constricted position during downward passage of the plug, and means actuated by movement of a lower part of the plug out of the drill pipe for expanding the radially movable means within the pipe. A sectional tubular body 23 is connected to an enlarged upper section 31 and a lower latch body 33. A reinforced rubber packer 34 is mounted on a part-tapered mandrel 35 movable through an apertured closure 37 of the body section 31, the lower end of the packer being annularly recessed at 51 and normally confined in a recess 37a in the closure 37. The mandrel 35 is threaded to a thimble 59 pressed by a spring 100 and initially held down by a relativelyslidable sectional rod 56 passing through the body and connected to a notched member 60 co-operating with latches 63 pivoted in the latch body 33 and adapted to engage the inner wall of the drill string 21. The rod 56 is connected by a transverse pin 79, passing through slots 80 in the body 23, to a sleeve 76 slidable on the body and pressed by a spring 81, the sleeve 76 being connected by rods 78 to wedge clips 67 slidably guided in inclined ways 71 in a sleeve 68 ; the sleeve 68 also has reversely inclined ways 70 supporting wedge clips 66 which prevent upward movement of the plug. The plug is dropped or pumped down the drill string and as its lower end emerges, the latches free the rod 56 which, with the sleeve 76, is pushed up by spring 81, and the clips 67 engage the drill string to hold the plug. Simultaneously, spring 100 pushes up the mandrel 35 to free the packer which is expanded by the well pressure. To free the plug, a screw 81 is removed from the latch body 33 and a tool engaged with a threaded opening 82 in the member 60 and the rod 56 pulled down to release the clips 67; the parts are then locked by a screw passed through sleeve 76 into the body 23. In Fig. 12, the sleeve 104 for actuating the clips is held in downward position by balls 107 which enter recesses 111 in the rod when the latter is freed, spring 105 then raising the sleeve to set the clips. Specification 473,093 is referred to.
Patent GB-358551-A (GB)
Title: Improvements in electrical regulating devices
IPC: H05B1/02
Filed: 1930-07-04
Abstract: 358,551. Controlling consuming devices. AKTIEBOLAGET BIRKA REGULATOR, 48, Surbrunnsgatan, Stockholm. July 4, 1930, No. 20346. Convention date, July 6, 1929. [Class 38 (iv).] Electric current regulating apparatus comprises a thermostat switch 2 as shown in Fig. 1 enclosed in a tube 3, either evacuated or filled with an inert gas, the contacts 4, 41 normally in contact being attached at their free ends to a sleeve 5 made of a material having a high co-efficient of expansion. A heating resistance 6 is wound outside the tube and connected through the normally open contacts 7, of an auxiliary thermostat switch 10 across the load 1. Closing of the contacts 7 of the auxiliary switch completes the circuit of the heating resistance 6 and the contacts 4, 4<1> open at 2 to break the main circuit. One of the contacts 7 is attached to a flexible rod 8 which may be moved by a screw 9 to adjust the gap of the contacts 7 and so vary the period during which the main circuit is closed. In Fig. 2 further contacts 11 in series with the heating coil of the auxiliary switch are opened on the extreme movement of the flexible rod 8 i.e., beyond the range of movement of the bimetallic contact of the auxiliary switch so as to provide continuous current to the load. Further contacts 12 which are normally open are in series with an auxiliary coil 61 which is just able to hold the contacts 4, 4<1> are closed by adjustment of the flexible rod 8 is to shut off the load. Further adjustment of the operation of the auxiliary switch may be effected by regulating resistance 10<1>.
Patent GB-248637-A (GB)
Title: Improvements in or relating to the measuring of heat quantities in central heating plants
IPC: G01K17/08
Filed: 1925-08-13
Abstract: 248,637. Lange, A. L. Aug. 13, 1925. Heat and temperature coefficients, apparatus for determining. - In a central heating plant having a number of consumers' installations of different capacities, the meters for the several installations are arranged to read the consumptions in terms of the maximum outputs, and not the actual heat units taken. This is effected by so arranging the meter circuits that all the meters give the same reading when all the installations are working at their maximum outputs. The Figure shows diagrammatically an arrangement of three installations of different magnitudes, supplied by branch pipes 9 from a main 8. The metering elements comprise thermo-electric elements 7 connected to meters 1, 2, 3 of the ampÞre-hour type and the desired proportionality of the readings is obtained by including in the meter circuits properly related series resistances 11, 12, 13 or shunt resistances 21, 22, 23. Any initial correcton of the meters which may be required may also be allowed for in determining these resistances.
Patent GB-692310-A (GB)
Title: Improvements in gaiters, leggings and the like
IPC: A41D17/00
Filed: 1950-08-17
Abstract: 692,310. Gaiters. PARSONS, E. H. P. M. Aug. 16, 1951 [Aug. 17, 1950], No. 20460/50. Class 141. The instep strap of a gaiter &c. comprises a strip 1 of elastic material e.g. rubber the ends of which are threaded through buckles 3 carried by tapes 2. The tapes 2 are preferably looped and stitched at 6 to the garment 5 and their ends may be bound with metal strips.