baber/WOPTO huggingface dataset:
Patent GB-878729-A (GB)
Title: Dithiophosphonic acid esters
IPC: C07F9/40
Filed: 1959-07-20
Abstract: The invention comprises dithiophosphonic acid esters of formula <FORM:0878729/IV (b)/1> where R is C1-4 alkyl, cycloalkyl or C2-4 alkenyl and R1 and R11 are C1-4 alkyl They are prepared by the reaction of the corresponding dithiophosphonic acid-O-alkyl esters with alkyl vinyl thioethers, preferably in an inert solvent.  The products are insecticides (see Group VI).  Reference has been directed by the Comptroller to Specification 842,306.ALSO:Insecticidal compositions comprise dithiophosphonic acid esters of formula <FORM:0878729/VI/1> where R is C1-4 alkyl, cycloalkyl or C2-4 alkenyl, and R1 and R11 are C1-4 alkyl, together with conventional solid or liquid carriers.  Reference has been directed by the Comptroller to Specification 842,306.
Patent GB-407008-A (GB)
Title: Improvements in or relating to coating compositions
Filed: 1932-09-07
Abstract: Coating compositions, particularly for metal surfaces, comprise a phosphoric acid salt of an ester or ether-ester of a hydroxylated alkylamine, the acid residue of the ester group being the residue of a long-chain fatty acid or of a resin acid. The ester phosphate compound obtained, for example, by heating linseed oil acids and commercial triethanolamine and then adding mineral spirits and phosphoric acid, may be used alone on metal and baked at 450 DEG  F., or may be mixed with varnishes or paint products in amounts of 3 per cent and upwards.  An example is given of a paint containing gilsonite, prepared oil, black pigment, mineral spirits, ester phosphate compound, and citric acid.  The latter is added to avoid an alligatored appearance of the dried film.  The linseed oil acids may be replaced by tung oil acids, castor oil acids, oleic acid, rosin, or the corresponding oils which may or may not be heat-bodied.  In a further example, linseed oil, bodied for two hours at 625 DEG  F. is heated with triethanolamine, cooled, and mixed with kerosene, naphtha, and phosphoric acid.ALSO:A phosphoric acid salt of an ester or ether-ester of a hydroxylated alkylamine, the acid residue of the ester group being the residue of a long-chain fatty acid or of a resin acid, is produced by heating together the oil or resin acid and the hydroxylated alkylamine and then adding phosphoric acid.  As hydroxylated alkylamine, commercial triethanolamine is preferred. The oil or resin acids may be linseed oil acids, tung oil acids, castor oil acids, oleic acid, or rosin.  The oil acids may be replaced by the corresponding oils, which may be heat-bodied or not.  In examples: (1) linseed oil acids and commercial triethanolamine are heated together and mineral spirits and phosphoric acid added, and (2) linseed oil heat-bodied for two hours at 625 DEG  F. is heated with triethanolamine, cooled, and mixed with kerosene, naphtha, and phosphoric acid.
Patent GB-481570-A (GB)
Title: Manufacture of monoazo-dyestuffs soluble in water
IPC: C09B29/30
Filed: 1936-09-14
Abstract: Monoazo dyes soluble in water are made by coupling in an alkaline medium with 2 : 8 : 6-acid or 2-amino-8-naphthol-3 : 6-disulphonic acid or an N-alkyl or N-aryl derivative thereof, a diazo compound of the general formula <FORM:0481570/IV/1> wherein X = halogen or SO3H, Y = a diazo group and R may contain further substituents, the components being selected so that the finished dyestuff contains at least two sulphonic acid groups.  They dye leather in brown shades. In examples, the following dyes are described: (1) and (4) 2-chlor- or 2-brom-1 : 4-diaminobenzene-6-sulphonic acid --> N-phenyl- or methyl-2 : 8 : 6-acid; (2) 1 : 4-diaminobenzene sulphonic acid --> 2 : 8 : 6-acid, chlor-1 : 4-diaminobenzene --> 2-amino-8-naphthol-3 : 6-disulphonic acid; (5) 2-methyl-1 : 4-diaminobenzene-6-sulphonic acid --> N-ethyl-2 : 8 : 6-acid; (6) 2-methoxy-1 : 4-diaminobenzene-6-sulphonic acid --> N-(41-methoxy-, methyl- or chloro-phenyl)-2 : 8 : 6-acid.  Additional components specified in a table are: 2 : 6-dichloror dibrom-1 : 4-diaminobenzene, 1 : 4-diaminobenzene-2 : 6-disulphonic acid, 2-ethoxy - 1 : 4-diaminobenzene-6-sulphonic acid.
Patent GB-839101-A (GB)
Title: Improvements in conveying apparatus
IPC: B65G53/22
Filed: 1958-08-05
Abstract: 839,101. Pneumatic conveyers. FULLER CO. Aug. 5, 1958 [Aug. 19, 1957], No. 25047/58À Class 78 (1). Apparatus for conveying pulverulent material comprises a vessel 8 having a charging inlet 3 in the top and a discharge outlet 18 at the side 17, a gas-permeable deck 13 spaced from the bottom 14 of the vessel, means for introducing gas under pressure to the plenum chamber 16 below the deck, and a baffle 22 extending across the vessel and forming a gas passage 23 adjacent the top of the vessel and a fluidized material passage 24 adjacent the deck, the arrangement being such that the material is expelled through the outlet 18 into the conveying line 21 by the gas which has passed over the baffle. The size of the passage 24 is adjusted by moving the slide 25. The deck 13 may be horizontal. Gas may be introduced into the chamber 16 through a conduit having a branch leading back to the source of gas. The branch is provided with a valve for controlling the passage of gas therethrough which is opened automatically when the pressure in the main conduit reaches a predetermined value. Means is provided for reclosing the valve after a predetermined time and for delaying the closing until the valves controlling the discharge and inlet openings of the vessel are closed. Specification 677,890 is referred to.
Patent GB-1310832-A (GB)
Title: Method for fabricating a set of driving lines with magnetic  flux keepers
IPC: G11C5/08
Filed: 1970-05-26
Abstract: 1310832 Magnetic storage devices KOKUSAI DENSHIN DENWA KK 26 May 1970 [4 June 1969] 25075/70 Heading H3B A method of making a set of drive lines for a magnetic storage device comprises the steps of forming a set of parallel composite strips on a flexible insulating substrate, each strip comprising superposed layers of conductive and magnetic material, and depositing magnetic material on at least the sides of the composite strips. Fig. 1E shows a completed set of lines, formed by vapour depositing a continuous layer of permalloy and a continuous layer of copper on to a Mylar (R.T.M.) substrate 4, etching using photoresist 7a to give composite strips of permalloy 5a and copper 6a, and electrophoretically depositing ferrite side pieces 8. The spaces between side pieces 8 is filled with a moulding material, and the upper face of the assembly may be polished. Fig. 2c shows similarly formed composite strips where the side pieces of magnetic material 12, which is an insulator fill the gaps between adjacent strips. The upper, magnetic portions of each strip are lightly etched. Fig. 3D shows composite strips formed from continuous layers as before, but with the copper 13a beneath the permalloy 5b. An additional copper layer 6b is deposited on the permalloy. Side pieces 8 are provided as in Fig. 1D, but the uppermost layer, of photoresist, has been removed. In the embodiment Fig. 4C, strips of Cr, Al or Ni 14a are first formed from a continuous vapour deposited layer, and then copper 15 and ferrite 16 are electrodeposited. Moulding material 17 is applied with the assembly supported on a rigid base 11, and then both the base and the flexible substrate 4a are removed, Fig. 4D (not shown). In use the above drive lines, all of which have one face not covered with magnetic material, are placed with that face against orthogonal magnetically coated conductors, Fig. 5 (not shown).
Patent GB-764871-A (GB)
Title: Improvements in or relating to apparatus for separating liquid or solid particles form gas
IPC: B01D45/08
Filed: 1954-08-30
Abstract: 764,871. Separation of dust from gases. KITTEL, W. Aug. 30, 1954, No. 25137/54. Class 8(2) [Also in Group XIII] Apparatus for separating dust from a gas stream comprises at least three stationary spaced superposed plates 11, Fig. 3, in series and each has a plurality of slots so oriented as to direct the issuing gas streams over the surface of the plates and also around the axis of the assembly; the sense of rotation of all streams from any one plate being the same. As shown in Fig. 4 the sense of rotation of the stream issuing from any one plate is opposite to that of an adjacent plate. In operation dustladen gas enters an inlet 9 of a casing 6 and after traversing the slotted plates 11 clean gas leaves through an outlet 12. In a modification the slotted plates comprises concentric cylinders 3, Fig. 1, (not shown).
Patent GB-634343-A (GB)
Title: Improvements in or relating to radio receiving apparatus
IPC: H03D3/08
Filed: 1947-09-15
Abstract: 634,343. Frequency modulation. KOLSTER BRANDES, Ltd., WETHEY, E. P., and BABB, A. H. Sept. 15, 1947, No. 25161. [Class 40 (v)] The discriminator circuit of a frequencymodulation receiver is automatically maintained at the mean frequency of the modulated wave by the use of saturable-core inductance coils. The discriminator fed from the I.F. stages comprises a primary circuit tuned by a condenser 2 and a secondary circuit tuned by a condenser 5, the primary coil being inductively coupled to the secondary, and a coupling being also afforded by a condenser 11 between the live side of the primary circuit and a centre tap on the secondary circuit. Between the sections of the divided secondary coil, a coil 4 is connected having a saturable core and the centre tap is provided on the coil 4. The secondary circuit is connected to rectifiers 6, 7 and load resistors 9 in the normal manner, and the output voltage across the resistors 9 is taken to a low-pass filter 8. The signal is taken off across terminals 12 and a voltage representing changes in the mean frequency of the I.F. wave is taken at terminal 13 to a D.C. amplifier 14 whose plate current varies the saturation of the core of the coil 4. The tuning of the secondary circuit is thus adjusted to substantial agreement with the mean frequency of the I.F. wave. The plate circuit of the valve 14 may also include a second coil for adjusting the tuning of the primary discriminator circuit (Fig. 4, not shown).
Patent GB-793910-A (GB)
Title: Improvements in or relating to air break electric circuit interrupters
IPC: H01H9/38
Filed: 1956-08-17
Abstract: 793,910. Arc-rupturing in switches, contact members for switches. WESTINGHOUSE ELECTRIC INTERNATTONAL CO. Aug. 17, 1956 [Aug. 23, 1955], No. 25180/56. Class 38 (5). The arc shoot of a circuitbreaker is pivoted on a conducting member which carries the fixed contacts and which together with the moving contact assembly is mounted in a U-shaped housing of one-piece moulded insulating material. The housing 15 is mounted on brackets 17, 25 and supports in its rear wall 29 two terminal studs 31, 33 fixed to contact blocks 35, 37 and surrounded by insulators 32, 34 which are clamped into the housing 15 by nuts 44. A projection 113 on the contact block 35 carries a pivot-pin 111 supporting a bracket 115 attached by screws 117, to the arc shoot wall 119 and an arc horn 121. A spring contact member 123 maintains contact between the block 35 and the arc horn 121. A second arc horn 125 engages a resilient member 127 which is bolted to the front of the arc shoot 109 at 129 and 131. The bolt 131 also holds the end of a conductor 133 connected to the contact block 37. When the bolt 131 is removed the arc shoot can be rotated about the pivot 111 so that the contacts can be examined. In the service position the lower edges of the arc shoot 109 rest on ledges 135 in the housing. The fixed contacts are mounted on the block 35 and comprise an arcing contact 41 and a row of self-aligning main contacts 39 pivoted at 43 and urged by spring 45 against stops 47. A rod 107 operates the two flat metal switch arms 57 which are pivoted on the block 37 and carry the main moving contact 69. Pivots 73 on the moving arcing contacts 71 are retained in recesses 75 in members 57 by resilient members 77, and the contact 71 is. urged toward the fixed contact 41 by a spring 91 held against a bracket 89 on the contact 69.- A rod 97 having one end pivoted at 99 extends through the spring 91 and the bracket 89 so that its stop 103 can engage the bracket 89 to limit the movement of the arcing contact 71.
Patent GB-714862-A (GB)
Title: Speed governors for controlling the supply of liquid fuel to engines
Inventor: FREEMAN FRANK GEORGE
IPC: F02D1/12
Filed: 1951-10-29
Abstract: 714,862. Centrifugal governors. LUCAS (INDUSTRIES), Ltd., J. Oct. 28, 1952 [Oct. 29, 1951], No. 25211/51. Class 57 [Also in Groups XXIX and XXXVII] A centrifugal governor comprises a rotor b within which are arranged weights e which have on one or both sides wedge-shaped recesses f which cooperate with wedge-shaped recesses in either or both the insert d and an abutment plate k. Balls i are placed between the co-operating recesses so that as the weights move outwardly under the action of centrifugal force, the abutment plate is moved axially. The recesses may also be wedge-shaped circumferentially so that the abutment plate is moved axially upon changes of speed. The abutment plate is loaded by a spring h and through a rod m actuates a lever n. The lever n may actuate a switch 5 that energises an electromagnetic 6 to actuate the control valve q of a fluid-pressure servomotor comprising a spring-loaded piston u arranged in a cylinder having its ends connected through a throttle wand supplied with motive fluid through the opening 2. Alternatively the control valve is directly actuated by the lever n.
Patent GB-584106-A (GB)
Title: Improvements in vibrator circuit with primary circuit division
IPC: H02M7/62
Filed: 1944-12-18
Abstract: 584,106. Converting. PLESSEY CO., Ltd. Dec. 18, 1944, No. 25335. Convention date, Jan. 4. [Class 38 (ii)] A vibrator system comprises twin primary transformer windings 11, 12, a current source 10 connected to the midpoints of these windings, an electromagnetic vibrator 15, four contacts 21, 22 and 23, 24, two on each side of the vibrator reed 20, one contact being connected to each of the four ends of the primary windings. When the reed touches the upper contacts 21, 22, current impulses pass from source 10 through the upper halves of each primary winding 11, 12 and when it touches lower contacts 23, 24 current impulses are sent through the lower halves of the windings in the reverse direction so that A.C. is induced in the common transformer secondaryc 14. The vibrator 15 is energized when oontacts 21, 22 are broken by current passings through the upper halves of both primaries and de-energized when the vibrator coil is short-circuited by the making of contacts 21, 22. By the connection of the vibrator coil to the mid-point of a resistor 18 both contacts 21, 22 must be closed to completely de-energize the coil, so that both contacts participate equally in the driver coil action and their life is prolonged. In a modification, Fig. 2 (not shown), the same result is achieved by there being two vibrator windings instead of the centre tapped resistor 18, and two outputs are obtained by each transformer primary being coupled to,a separate secondary.
Patent GB-1216804-A (GB)
Title: Method of forming a container from sheet thermoplastics material
Inventor: WALD KARL
IPC: B29C51/34
Filed: 1969-05-19
Abstract: 1,216,804. Sheet forming. BELLAPLAST HELLER & CO. 19 May, 1969, No. 25346/69. Heading B5A. [Also in Division B8] A false-bottomed container is blow moulded from a sheet of heat-softened thermoplastic material in a mould having a raisable base plunger 8, the part of the mould initially engaging the region 13 of the sheet to be deformed by the raising of the plunger, and the plunger itself, cooling the sheet to a lesser extent than the rest of the mould to ensure sufficient pliability. of the sheet in that region. The region 16 of the sheet directly above region 13 is formed with axial ribs 51 against which the region 13 is forced by the raising of the plunger, the movement of the plunger being stopped when the base of the container is level with the upper shoulder 52 of the ribs.
Patent GB-1348681-A (GB)
Title: Optical read out arrangements
IPC: G06K7/10
Filed: 1971-04-19
Abstract: 1348681 Sensing records RICOH KK 19 April 1971 [20 March 1970] 25361/71 Heading G4M An optical reader has photo-electric sensors 2 1 , 2 2 , 2 3 , each aligned with a column of light and dark marks on a record, and feeding a logarithmic amplifier 3 1 -3 3 . The outputs of two amplifiers chosen so that at least one of the outputs is always carrying a zero are fed respectively via amplifiers 6, 7 to a maximum voltage detector. The output Vc, representing an "0" indicating an unmarked portion of the record, indicates the intensity with which the record is illuminated and is fed to one input of a plurality of difference amplifiers 4 1 -4 3 . The other input of each difference amplifier is coupled to the output of a respective amplifier, and the difference amplifier outputs, which are independent of illumination intensity may be reshaped by threshold circuits 5 1 -5 3 .
Patent GB-1142599-A (GB)
Title: Improvements in straw baling presses
IPC: A01F15/04
Filed: 1967-06-01
Abstract: 1,142,599. Baling presses. DEERE & CO. 1 June, 1967 [2 June, 1966], No. 25371/67. Heading B5F. A baling press for straw is provided with a balancing weight 14 to counteract the rocking effect of an oscillating plunger 8. As shown, weights 14 may be adjustably mounted at the ends of arms 12 pivoted at 13, the other ends of the arms 12 being connected by connecting rods 17 to a crank 16. The baler is mounted on the rear of a combine harvester which feeds straw on to a feed tray 5 whence it is fed to the baling passage 6 by a tamper 10 connected to the piston 8 and by feeders 20 on a shaft 19.
Patent GB-917250-A (GB)
Title: Dye brightening agent in diazotype material
Inventor: BIALCZAK EDWARD CASIMIR
IPC: G03C1/61
Filed: 1961-07-13
Abstract: 917,250. Photographic diazotype material. GENERAL ANILINE & FILM CORPORATION. July 13, 1961 [Aug. 12, 1960], No. 25475/61. Class 98 (2). Aryl phosphonic, aryl phosphinic, aryl sulphinic and boro phosphoric acids or their soluble salts are included in diazotype materials as dye brightening agents. Advantages as regards " gas fading " and shelf life are provided also. Examples I-III specify two component diazo sensitizing mixings containing phenyl-phosphinic acid for the purpose. Example IV includes this substance together with glue and silica as a precoat for a sulphite paper. Examples V, VI indicate the use of phenyl-phosphonic acid and Example VII that of boro-phosphoric acid. Numerous other phosphinic acids and salts thereof are listed.
Patent GB-580594-A (GB)
Title: Improvements in and relating to machines for sharpening or honing safety razor blades
IPC: B24D15/08
Filed: 1944-12-19
Abstract: 580,594. Razor sharpeners. NORRING- TON, A. S. Dec. 19, 1944, No. 25502. [Class 60] A machine for sharpening safety razor blades comprises a pair of longitudinally gapped honing drums rotatable on parallel axes, and a blade carrier arranged for linear movement in a path parallel to a tangent to the drums by means of cams on the drums and spring means, whereby opposite faces of the blade edges are presented alternately to the drums ; doubleedged blades or pairs of single-edged blades may be sharpened. The machine comprises a frame with bottom 1, Fig. 1, and side walls 2, 2a in which are journalled parallel spindles 3, 4, carrying honing drums 5 and extended to receive meshing spur gears 7 ; the spindle 3 also projects through the wall 2a to receive a pinion 8 meshing with a rack bar 9 reciprocated in a guide sleeve 11 on the wall 2a by a handle 10. Each drum 5 is formed as a hollow cylinder 13, Fig. 4, with a longitudinal slot 14 and closed at its ends by cam discs 6, the cylinder having a covering 15 of leather &c. ; the discs 6 are for the greater part of their peripheries of the same radius as the external surface of the drum and adjacent the slot 14 have rises 16, with a depression 17 therebetween. In a plane midway between the spindles 3, 4 the walls 2, 2a have therein a guide slot 18 to receive slides 19 secured to a blade carrier 20 having a pair of locating pins 21 to engage the holes in a blade 22, which is held down on the plate 20 by a cover plate 25 hinged at 28 to the plate 20 and pressed, so as normally to lift about the hinge by a spring 33 ; the plate 25 is held down by a finger-operated latch 31 normally held down by a spring 32. In the walls 2, 2a are pairs of screws 35 around which are passed endless wire springs 34, the upper and lower limbs of which lie in the path of movement of the slides 19. In operation, the drums 5 are rotated to and fro by reciprocation of the rack 9, the cams 6 operating to lift the blade carrier clear of the drums, then to lower the carrier so that the blade edges are engaged by the operative surfaces of the drums, and then to lower the carrier, with the blade edges in the gaps 14, clear of the drums; reverse rotation of the drums effects the honing of the opposite faces of the blade edges. The drums 5 may be formed of rubber, glass or hard-setting plastic material, or of metal, wood, &c., faced with leather, rubber, cellulose acetate, celluloid, plastic material, &c. The drums may be rotated by an archimedean screw.
Patent GB-479336-A (GB)
Title: Improvements in valves for ore slime and the like
IPC: F16K1/16
Filed: 1937-09-22
Abstract: 479,336. Hinged valves. RICHARDSON, L. J. Sept. 22, 1937, No. 25652. [Class 135] A valve for controlling the flow of ore slime or other pulps containing solid matter comprises a casing having aligned flanged ends 2 and 3 for connection to pipes &c., while the intermediate portion 4 is in the form of a drum provided with flat cover plates 6 and 7, a rectangular valve seat 11 ... 14 being formed between the portions 2 and 4. A closure member 17, co-operating with the seat, is secured to a spindle 20 journalled in the plates 6, 7 and provided with operating mechanism 31, the spindle being positioned to one side of and away from the seat and the member 17 and the seat being cylindrically curved so that no sliding movement between the member 17 and the seat takes place. The drum cavity 26 on the side on which the spindle 20 lies is deeper than on the other side, and the member 17 is housed in this cavity, out of the direct passage between the casing ends, when the valve is opened, while leaving a space behind the member 17. The sudden enlargement provided by the portion 4 produces turbulence in the flow, causing accumulations of solid matter to be disturbed, while flow through the space behind the member 17 during opening movement washes away solid matter which tends to be pushed by the member 17 into that space. The casing is lined throughout with sheet rubber and the member 17 is also covered with sheet rubber. Rubber washers 27 encircle the spindle 20 between the ends of the member 17 and the plates 6 and 7.
Patent GB-463923-A (GB)
Title: An improved reaper and binder
IPC: A01D37/02
Filed: 1936-09-22
Abstract: 463,923. Binding-machines. BRENNER, F. Sept. 22, 1936, No. 25723. Convention date, Nov. 13, 1935. [Class 6 (iii)] To assist in transferring grain from the conveyer b at the rear of the knife bar to the binding table the connecting-rod e actuating the knife bar is provided with a link d carrying a hook f adapted to oscillate in a vertical plane so as to take up in succession the positions 1 ... 4 : the butt ends of the grain carried by the conveyer b are thus raised and drawn on to the binding table. The binding table is also provided with a butter i carrying at its end a projection p to co-operate with the hook. A curved plate m, provided with a slot for the hook f, guides the grain on to the binding table.