baber/WOPTO huggingface dataset:
Patent GB-369281-A (GB)
Title: Improvements in and relating to electric vacuum switches
IPC: H01H33/66
Filed: 1930-12-18
Abstract: 369,281. Vacuum switches. BRITISH THOMSON-HOUSTON CO., Ltd., Crown House, Aldwych, London.-(Assignees of Rankin, W. K. ; 267, Highland Avenue, Lansdowne, Pennsylvania, U.S.A.) Dec. 18, 1930, No. 38220. Convention date, Dec. 18, 1929. [Class 38 (v).] The diaphragm 29, the distortion of which enables the movable contact-member 26 to be operated, is a one-piece structure with an outwardly-extending integral ca-p portion 32 into which the part 26 fits and is clamped by a stirrup 35 by which the diaphragm is distorted. The stirrup has lateral pins which take a bearing in fixed posts 36 on the housing structure and it is rocked by actuating links 37, 38. The axis of pivotal movement of the stirrup is in the plane of the diaphragm so that the minimum of strain is put upon the diaphragm. The fixed contact 8 co-operating with the movable contact 9 is mounted on the end of the lead-in conductor 3 which is sealed to a sleeve 25 which has a resilient attachment, by means of the spring posts 13, 14, with the end cap 10 of the insulator 2. The sleeve is sealed to a collar 23 which, in turn, is sealed to a glass tube 22. At its lower end, the tube is sealed to a collar which is sealed to the metal vacuum chamber 1. An insulating distance sleeve 18 is employed surrounded by a shield 16 to prevent deposition of metal on the sleeve. The container is evacuated through the tube 7 the cap 41 being raised by screw and linkage mechanism 50, 51 which distort a diaphragm 48 similar to that for the operating member of the switch. The diaphragm rocks a rod 46 thereby raising the cap. When the desired degree of evacuation is obtained (as shown by the vacuum indicator 39 of known form) lowmelting-point alloy in an annular seating for the cap 41 is melted and the mechanism 50, 51 operated to bring the edges of the cap down into the metal which is then allowed to harden. The evacuating attachment may be removed by detaching it at the insulator 5.
Patent GB-1452309-A (GB)
Title: Rotary cutters
IPC: B23C5/22
Filed: 1973-08-14
Abstract: 1452309 Rotary cutters; saws P MALINCHAK 14 Aug 1973 [15 Aug 1972] 38362/73 Heading B5L [Also in Division B3] A rotary cutting tool comprises an annular body 16 having a plurality of pockets and a plurality of substantially cylindrical inserts 10 each located in a pocket and having a substantially circular cutting edge, formed by sinusoidal undulations, each insert being indexable in its pocket. When arranged in the seats the teeth of the inserts are located at 17 and are offset relative to each other. The inserts are made from tungsten carbide. The tool may be an end mill, or a circular saw.
Patent GB-860097-A (GB)
Title: Improvements relating to steering columns adapted for absorbing shock
IPC: B62D1/19
Filed: 1959-11-12
Abstract: 860,097. Steering vehicles. DAIMLER-BENZ A.G. Nov. 12, 1959 [Nov. 13, 1958], No. 38427/59. Class 79(5). A steering column comprises shafts 1 and 2 splined together to form a telescopic arrangement and held against relative movement by a disc 10, Fig. 2, embedded in a rubber annulus 12, engaging a groove 11 in the shaft 1. In the event of shock telescoping the members, a conical or otherwise tapered member 3 secured to the shaft 2 penetrates a bore 5 in the shaft 1. The two shafts are encased in a member 13 containing oil, the passage of oil between the interior of shaft 2 and the casing being permitted through a bore 20 or by omitting one spline. The further the member 3 penetrates into the bore 5, the greater is the throttling effect caused by the reduction of area at the end 4 of the bore through which the fluid can escape, providing a shock absorbing arrangement.
Patent GB-819118-A (GB)
Title: Improvements in or relating to building units
IPC: E04C2/38
Filed: 1957-12-11
Abstract: 819,118. Building units; walls &c. TAYLOR, E. E. Dec. 11, 1957, No. 38474/57. Classes 20(4) and 87(1) A storey-high building slab 1 having flanges 2 on its longitudinal edges is reinforced internally by wire mesh 5. The slab has spaced recesses 3 on one or other of its major faces, and the flanges also are recessed at 4 or provided with through apertures; the flanges have bolt-holes 6 at their ends. Wall slabs with apertured flanges are erected with the flanges facing the interior of the building and are faced with hardboard &c. by attaching wooden nailing strips to the flanges by means of wire passed through the apertures and tied round the strips, and then nailing the facing panels to these strips.
Patent GB-1391049-A (GB)
Title: Treatment of vegetable protein
IPC: A23L5/20
Filed: 1973-08-14
Abstract: 1391049 Vegetable protein CARGILL Inc 14 Aug 1973 [21 Aug 1972] 38498/73 Heading A2B The nutritive value of vegetable protein, in particular soy bean flour, is improved by dispersing an edible acid therein so as to provide a substrate of pH 1-5.5, adjusting the moisture content to 10-30 wt%, heating to 275-450F, and subjecting to pressure, preferably 30-10,000 psig and preferably for 1-60 minutes, for example in an extruder. Examples relate to the use of the product as an animal feed supplement.
Patent GB-359802-A (GB)
Title: Sizing treatment of artificial silk yarns and threads
IPC: D06M15/11
Filed: 1930-12-22
Abstract: Artificial silk yarns, threads or filaments, particularly cellulose acetate, are sized by applying thereto at a temperature of 60-70 DEG C. a composition containing casein, dextrin, or a dextrinized starch-containing material such as dextrinized tapioca flour, and an organic hygroscopic material such as corn sugar, glycerine or glucose. ALSO: A composition for use in preparing a size for artificial silk yarns, threads, or filaments particularly cellulose acetate comprises 50-80 parts of casein, 40-10 parts of dextrin or a dextrinized starch containing material such as dextrinized tapioca flour and the balance of 100 parts of an organic hygroscopic material such as corn sugar, glycerine, and glucose.  The size is prepared by mixing this composition with water, an alkali such as ammonia and a neutral soluble oil i.e. a neutralized sulphonation product of an oil such as castor or olive oil, or other softener and heating to 82 DEG  C., and is applied to the material at a temperature of 60-70 DEG  C.
Patent GB-822753-A (GB)
Title: Drive transmission for a movable clipper blade
IPC: B26B19/06
Filed: 1956-12-19
Abstract: 822,753. Hair clippers. WAHL CLIPPER CORPORATION. Dec. 19, 1956 [Oct. 8, 1956], No. 38660/56. Class 131 The movable blade 20 of a hair clipper has a recess 43 in the upper surface, a pair of bearing surfaces 45, 46, 47, 48 being provided at each end of the recess and inclined at angles of 30 degrees, to the longitudinal axis of the recess, and 20 degrees to a plane normal to the blade, to seat and wedge against bearing surfaces 37, 38 on a drive finger 21. The outer extremities of the pairs of bearing surfaces are spaced from each other by a distance C, which is half the length of the blade measured along the row of teeth 40 and by twice the distance A from the teeth to the longitudinal axis of the recess. It is stated that unseating of the end 32 of the drive finger is prevented and leverage is increased without increasing the tension and so the friction between the blades. Specification 710,639 is referred to.
Patent GB-1243341-A (GB)
Title: Improvements in and relating to electronic computers
IPC: G06F7/508
Filed: 1968-08-13
Abstract: 1,243,341. Electronic computers. SHARP K.K. 13 Aug., 1968 [15 Aug., 1967], No. 38705/68. Heading G4A. Multiplication or division is performed by a process including entering the two operands in shift registers, shifting one of the operands to the left and setting into the digital position adjacent the lowest order a variable digit related to the number of digits in said operand, the value of said variable digit subsequently controlling the sequential operations of the computation. Multiplication.-The multiplicand and multiplier are entered from a keyboard into magnetic core registers Y, X. These registers are associated with buffer registers, a full binary adder or subtractor, a decimal point register, an address counter, conditional flip-flops, a programme section and clock and timing pulse generators, whereby data may be transferred and decisions made. The multiplicand (lines 4-8, Fig. 4) is shifted step by step to the leftmost part of register Y and the number of steps α is registered in the digit position after the lowest denomination. The multiplicand is now added repeatedly to the corresponding digit positions of register X, the units registration of the multiplier being reduced by 1 at each operation until the units value of the multiplier becomes 0 (lines 9-13). The resultant partial product is then shifted to the right along with the remains of the multiplier which is thus divided by ten (line 14) and α is reduced by 1 (line 15). Repeated addition again follows in respect of the tens digit of the multiplier, and so on until the multiplier is reduced to 0 (line 19). The productin register X is now stepped to the right until α, reduced by 1 at each step, becomes 1 (lines 20-26). The multiplicand in register Y is then stepped to the right until α (=1) has been erased. Read-out of the product from X follows. Division, Fig. 7.-The divisor is entered in register Y and shifted to the left with the number of shifts α also recorded (line 4). The dividend is entered in X and shifted to leftmost position, α being reduced by 1 at each step (line 19). Repeated subtraction takes place in respect of the relevant number of upper digits of the dividend until the remainder becomes effectively negative by passing through zero, 1 being added to the lowest digit position X 1  for each subtraction (lines 20, 21). A single addition then corrects for over-subtraction (line 22). Further leftward shift of the reduced dividend with reduction of α takes place (lines 23, 24). The quotient is also stepped one place to the left. Repeated subtraction follows again (lines 25-28) and so on until α becomes 1, designating the beginning of the last process of repeated subtraction. This is followed by return of the divisor to the right, and read-out of the quotient (line 32).
Patent GB-884149-A (GB)
Title: Process for dyeing textile fabrics
IPC: D06P1/24
Filed: 1958-12-01
Abstract: In the dyeing or printing of textile fabrics of cellulose or polyvinyl alcohol fibres with an organic dyestuff containing at least one solubilising group and at least one substituent capable of reacting with the fibre, tone-in-tone effects are obtained by preprinting the fabric locally with a paste containing an oxyaryl compound containing a sulphonic acid group and capable of reacting with the dyestuff.  Specified oxyaryl compounds are sulphonated condensation products of formaldehyde with phenol, a cresol, p - tertiary - amyl - phenol, p - octyl - phenol or p-dodecyl-phenol. Suitable reactive dyestuffs are of the stilbene, azine, dioxazine, phthalocyanine, anthraquinone and metal-free or metalliferous azo series and contain, as reactive groups, vinylsulphone, acrylylamino, aliphatically bound phosphoric or sulphuric acid ester or aliphatically bound sulphonyloxy groups, or halogen atoms, especially halogen atoms present in an aliphatic acyl radical or bound to a heterocyclic ring such as a pyrimidine, phthalazine or triazine ring. The dyestuff paste or padding liquor may contain an acid-binding agent or a substance liberating such an agent on heating, or alternatively, the dyed fabric may subsequently be treated with a solution of an acid-binding agent, and in either case, the fabric is subsequently heated or steamed.  The paste may also contain urea and a thickener, e.g. methyl cellulose, starch or an alginate.  The dyestuff padding liquor also preferably contains a neutral inorganic salt.  The dyeings or prints are finally soaped, and may be after-metallised if dyestuffs containing metallisable groups are employed.  Examples describe the printing of cotton fabric.
Patent GB-1157505-A (GB)
Title: Monoazo Dye Colour Couplers and their use in Colour Photographic Materials
Inventor: GREENHALGH COLIN WILLIAM
IPC: G03C7/333
Filed: 1965-09-10
Abstract: 1, 157, 505. Coupler incorporated silver halide materials. ILFORD Ltd. Sept. 8, 1966 [Sept. 10, 1965], No.38750/65. Heading G2C. [Also in Divisions C2 and C4] Photographic material suitable for forming reversal transfer images in colour comprises, in at least one silver halide emulsion layer or an adjacent layer, a magenta dye coupler of formula wherein R is a C 1-4  alkyl group, R 1  is H, halogen or C 1-4  alkyl or alkoxy, X is-NH- or -CH 2 NH- and R 2  is a group which has a free p-position to a hydroxyl group of formula selected from
Patent GB-1025349-A (GB)
Title: Improvements in or relating to the lining of passages with concrete
Inventor: BURGESS ROY PATRICK
IPC: E21D11/10
Filed: 1964-09-23
Abstract: 1,025,349. Lining penstocks &c. with concrete. EDMUND NUTTALL SONS & CO. (LONDON) Ltd. Sept. 23, 1964, No. 38863/64. Heading E1S. An inclined passage, such as a penstock, is lined with concrete by means of a cylindrical shutter 12 slidable on a frame 11. The frame 11 is supported on frames 13, 14 at either side of the shutter. The shutter comprises curved segments, two side segments which are pivoted inwards on the top segment for retraction after casting, the three segments then being lowered on jacks supporting the top segment and a bottom segment which is retracted upwardly on jacks. The ends of the shutter are inclined to its axis and are horizontal in operative position. The frame 13 is supported on the previously cast lining by pads 57 forced into engagement by turnbuckles 61 and the frame 14 is supported on the unlined rock by jacks 64, 66. After a ring 17 of the lining has been cast the pads 57 and jacks 64, 66 are released to allow the frame 11 to be slid through the shutter which is supported at its lower side by a pad 46 and a turnbuckle 48 against an already cast ring 18. After the frames 11, 13, 14 have again been fixed in position the shutter segments and pad 46 are retracted and the shutter moved along the frame 11 to a new position for casting the next lining ring. The pads 57 may be secured by screws 22 previously set in the concrete by means of the shutter.
Patent GB-820014-A (GB)
Title: Improvements in woven tubular fabrics
Inventor: DAVENPORT PETER LINDSAY
IPC: A61F2/06
Filed: 1956-12-21
Abstract: 820,014. Tubular fabrics. DAVENPORT Ltd., P. Dec. 20, 1957 [Dec. 21, 1956], No. 38929/56. Class 142(4) [Also in Group VI] Non-kinking tubular fabric for artificial arteries or for hosepipes has a thick weft B of nylon or other monofilament covered by a fine yarn b, alternating with a thin weft C, the warp a being also of thin yarn.
Patent GB-1445617-A (GB)
Title: Composite paving structures and units and processes for laying them
IPC: E01C19/52
Filed: 1973-08-17
Abstract: 1445617 Paving blocks R JORDAN 17 Aug 1973 [20 Oct 1972 5 Dec 1972] 39055/73 Heading EIB  A road is paved by laying units 2 each comprising a number of block areas defined by dummy gaps 8 and 10 which form weakened zones intended to rupture, and having recesses 20 in their side faces, on a prepared bed and interposing supplementary stones equivalent to one or a multiple of the elemental areas, rollers or traffic moving over the surface causing rupture of the weakened zones and thus forming a road equivalent to one paved with individual blocks. When the supplementary stones are equivalent to more than one element they also include weakened zones intended to rupture. The recesses in the units and the stones may be formed with interengaging formations resisting horizontal or vertical forces. The elemental areas may be rectangular (as shown) or they may be T- section and may have zig-zag or undulating edges. The units may be layed in stepped, herringbone or parquet patterns. The units are preferably concrete and may include randon or regular metal or plastics reinforcement spanning the rupture zones. The dummy gaps may extend from both faces and be offset thus defining rupture zones inclined to the vertical axis. The depth of the dummy gaps may vary along their length.
Patent GB-1031462-A (GB)
Title: Voltage stabilisers
Inventor: WRIGHT MAURICE JAMES
IPC: H02M3/137
Filed: 1961-11-01
Abstract: 1,031,462. Gate - turn - off - rectifier circuits. JOSEPH LUCAS (INDUSTRIES) Ltd. Oct. 25, 1962 [Nov. 1, 1961], No. 39065/61. Heading H3T. [Also in Division G3] A direct voltage stabilizer comprises an input terminal 11 connected to an output terminal 13 over a resistor 15 and the anode/cathode path of a controlled rectifier 16 of the type which can be switched off by a pulse applied to its gate terminal, an input terminal 12 directly connected to an output terminal 14, a capacitor 19 bridging the terminals 13, 14, and a Zener diode 18 connected between terminal 12 and the gate of the controlled rectifier 16, which gate is also connected over a resistor 17 to the terminal 11. When an unstabilized supply is connected to terminals 11, 12, current flows through resistor 17 to switch on rectifier 16, whereafter current flows through the rectifier to the load and to charge the capacitor 19. The voltage across Zener diode 18 rises until the diode conducts, at which point the gate of the rectifier is held at constant voltage; with further increase in supply voltage the cathode of the rectifier becomes increasingly positive with respect to the gate, so that a point is reached when the rectifier switches off; the capacitor 19 then discharges into the load and the cathode of the rectifier becomes less positive, whereby the rectifier is again switched on. This cycle continues with each rise in the unstabilized voltage so that the output voltage is held within a few volts of the breakdown voltage of the Zener diode 18. A parallel combination of an inductor and a diode may replace the resistor 15 which limits the current through the rectifier to a safe value. In a modification, Fig. 3, a second capacitor 22, a third resistor 23 and a four-layer diode 24 are connected into the circuit as shown, these elements constituting a pulse generator for switching off the rectifier, thereby providing more accurate stabilization. Further modifications, which include a transistor amplifier connected in series with the Zener diode, are described with reference to Figs. 4, 5, 6 (not shown).
Patent GB-962797-A (GB)
Title: Steroid-21-amino-acid esters and process for their manufacture
IPC: C07J75/00
Filed: 1960-11-14
Abstract: The invention comprises steroids of the formula: <FORM:0962797/C1/1> (wherein n is zero, 1 or 2, R is hydrogen, lower alkyl, phenyl or methoxy-phenyl, R1 is hydrogen or lower alkyl, and R2 and R3 are each hydrogen or lower alkyl or R2 and R3 together with the nitrogen atom form a saturated, 5- or 6-membered heterocyclic ring which may be interrupted by an oxygen atom; "lower alkyl" referring to alkyl groups of 1 to 4 carbon atoms) and acid-addition salts thereof; and their preparation by reacting 21-chloro- or 21-mesyl-6a -methyl-prednisolone with an alkali metal salt of the appropriate amino-acid in the presence of a dialkyl-formamide. Examples are given.  21-Mesyl-6a -methyl-prednisolone is prepared by reacting 6a -methyl-prednisolone with methane sulphonyl chloride in pyridine at 0 DEG C. 21-Chloro-6a -methyl-prednisolone is prepared from the same reactants in acetone and pyridine at reflux temperature.  The prednisolone derivatives of the invention, which are stated to have glucocorticoidal and anti-inflammatory activity, may be made up into pharmaceutical compositions with suitable carriers.  Specification 879,208 is referred to.
Patent GB-1074518-A (GB)
Title: Regulating device for an injection system operating on the distributor principle
IPC: F02D1/04
Filed: 1965-09-14
Abstract: 1,074,518. Regulating I. C. engines; reciprocating pumps; gas turbine engines. F. A. F. SCHMIDT. Sept. 14, 1965, No.39129/65. Headings F1A, F1B and F1G. In a fuel regulating device for I. C. engines, gas turbines or jet engines having a pair of rotatable distributer discs 2, 4, Fig. 6 with bores 6, 7, for feeding fuel, the discs are rotatable relative to one another in dependence on speed by an engine governor 15 or by a rod 16 in dependence on load. Rod 16 carries a roller 18 which engages a three-dimensional cam 13 carried by a governor weight 14, cam 13 being balanced by counterweight 21. With increasing speed the weights 14 move outwardly on rods 19 and are kept symmetrical about shaft 3 by links 38 attached to coupling member 39. Radial movement of cam 13 causes rotational movement of arm 17, which is engaged in an axial slot 22 in shaft 3 which in turn rotates disc 4 relative to disc 3 which is rotated by shaft 1. Axial movement of shaft 16 due to load variations causes roller 18 to move over cam 13 to rotate disc 4. Fuel under light pressure passes via bore 55 into chamber 56 of a swash-plate pump 57 and is pumped under pressure through a bore 62 in piston 58, suction valve 63, bore 61 and pressure valve 64 into chamber 65 and thence through passage 6, bore 10 in fixed disc 11 and through passage 7 to outlet passage 66 to respective injection nozzles. In another embodiment the fuel pump is omitted, fuel being admitted through a passage (8), Fig. 1 (not shown) and then passes through fixed disc (11) and rotating discs (4), (2) to outlet passages (12). In a further embodiment the cam (47) Fig. 3 (not shown) is carried on a pivoted arm (43) and the counterweight (48) is carried on a pivoted arm (44). Cam movements are traced by roller (50) which is loaded by spring (25). Ring (29) is rotated in dependence on load and rods (27), (28) which are engaged in grooves (31), (32) act through bearing (30) to move rod (26) and shaft (52) axially. A pressure regulator (37) which is controlled in dependence on ambient pressure or temperature controls the fuel pressure.
Patent GB-1474730-A (GB)
Title: Yielding support stilts in mine roadways
IPC: E21D15/28
Filed: 1975-08-20
Abstract: 1474730 Yielding mine roof support stilts SCHWARZ HOLYWELL Ltd 20 Aug 1975 [7 Sept 1974] 39161/74 Heading E1E A mine roof support stilt is made by bending an initially trapezium-shaped steel sheet, the converging side portions of the sheet first being bent through 90‹ to form a channel, and the leading edges of the sides then being bent through 180‹ to form U-section inturned lips 3, the second bends being slightly inclined to the first bends, whereby the stilt is wedge-shaped in longitudinal section; in use, an I-section mine roof support leg 2 is received in the wider upper end of the stilt 1, with its flanges embraced by the U-section lips 3, and the wedge shape of the stilt provides controlled resistance to the gradual descent of the leg 2 under the load of the mine roof. The stilt may have a base plate 4.