baber/WOPTO huggingface dataset:
Patent GB-312897-A (GB)
Title: A device for attachment to boots and shoes to prevent splashing of stockings
IPC: A43B3/16
Filed: 1928-12-15
Abstract: 312,897. Gracie, R. A. L. Dec. 15, 1928. Mud and rain guards.- The device comprises a strip A of springy metal of horse-shoe shape adapted to fit close to heels of different sizes, with an integral splash - arresting ledge B projecting more or less horizontally from the lower edge. The device is adapted to be clipped to the heel E a little above the tread face.
Patent GB-1074738-A (GB)
Title: Manufacture of pyridine or substituted pyridines
Inventor: COLCHESTER JOHN EDWARD
IPC: C07D213/09
Filed: 1964-09-10
Abstract: Pyridine or substituted pyridines are prepared by reacting glutaraldehyde, or a substituted glutaraldehyde, or a precursor thereof, in the liquid phase with ammonia or ammonium ions in the presence of a quinone containing a 1,2-benzoquinone ring or a 1,4-benzoquinone ring, the quinone ring being substituted by one or more halogen atoms and/or fused to one or more benzene rings. By the term "precursor" is meant compounds which, in the absence of ammonium ions, will give rise to a glutaraldehyde, or substituted glutaraldehyde under the conditions of temperature and pH used in the reaction, e.g. cyclic enol acetals, i.e. ethers of 2-hydroxy - 3,4 - dihydro - 2H - pyrans.  As well as ammonia salts and gaseous ammonia, hydrolysable amide may be used as the source of ammonia, e.g. formamide and urea.  Preferred quinones are chloranil and 1,4-naphthoquinone. It is preferred to use equimolar quantities of ammonia and glutaraldehyde and to operate in the presence of a solvent at a pH value in the range 1-7.  Examples relate to the preparation of pyridine.
Patent GB-1396739-A (GB)
Title: Proximity switch
IPC: H03K17/945
Filed: 1972-08-09
Abstract: 1396739 Proximity sensor E HERMLE 9 Aug 1972 [10 Aug 1971] 37223/72 Heading G1N [Also in Division H3] A proximity sensor includes an inductive element with coils 10, 12 and a shallow coil 54 disposed over coils 10, 12 whereby physical damage to coils 10, 12 will also damage coil 54, the coils in a pot-core 14 forming an oscillatory circuit with capacitor 16 and transistor 18, the sensor including at least one supervisory circuit connected with coil 54 which provides a constant output signal provided coil 54, is not broken. A first supervisory circuit, Fig.1a (not shown), is connected between points aa of Fig.1, and provides the signal indicative of damage to the inductive element. In addition other circuits are operative to monitor (1) oscillations of the circuit falling below a prescribed amplitude (2) the supply voltage lying outside prescribed limits (3) the supply D.C. having an A.C. component in excess of a predetermined amplitude. It is stated that the sensor may utilize a capacitive element instead of an inductive element.
Patent GB-1344885-A (GB)
Title: Hydraulically operated grabs
IPC: B66C3/16
Filed: 1971-08-09
Abstract: 1344885 Hydraulic motor control circuit DEMAG A G 9 Aug 1971 [4 March 1971] 37244/71 Heading F1P Hydraulic grab-opening and closing cylinders 16, 17 are supplied by a reversible pump 15 drawing from a reservoir 12 and driven by an electric motor 7 the control circuit of which motor has cut-out means responsive to means in the hydraulic system indicative of an unsafe or potentially unsafe condition of said system e.g., lack of liquid in the reservoir, or an undue temperature or pressure rise in the hydraulic system. In operation and with a manually operated three-pole switch 2 or 3 closed according to the desired direction of rotation of motor 7 and hence of pump 15 a low voltage is supplied by a transformer 8 to terminals R1, R2 thereby energizing a circuit containing closed contacts 9a, 10a, 11a and a relay 20 which closes contacts R', S', T', of a further three-pole switch to energize motor 7. In the event of a fall in liquid level in reservoir 12 a depth sensor 10c closes left hand contacts of a switch 10b thereby energizing a relay 13 and sounding an alarm horn. At the same time right hand contacts of switch 10b energize a relay 10 which opens contacts 10a in the circuit of relay 20 thereby opening contacts R', S', T'. A further switch 9b responsive to a temperature sensor 9c also sounds the horn and after a time delay energizes a relay 9 which opens contacts 9a in the circuit of relay 20 to stop motor 7. An undue pressure rise in one or other of the hydraulic lines 18, 19 between the pump and cylinders closes an associated switch 11b, 11c to energize a relay 11 which opens contacts 11a in the circuit of relay 20.
Patent GB-1157826-A (GB)
Title: Improvements in and relating to Tantalum Alloys
IPC: C22C27/02
Filed: 1966-08-23
Abstract: 1,157,826. Tantalum base alloys. NORTON CO. Aug. 23, 1966, No.37728/66. Addition to 1, 054, 049. Heading C7a. A tantalum alloy consists, apart from incidental impurities, of Ta or an alloy containing at least 60% Ta with the balance being one or more of the metals Ti, Zr, Hf, Th, V, Nb, Cr, Mo, W, U or Pa and an additive consisting of oxides of elements with atomic numbers 39 or 57-71, elements with atomic numbers 57-71 or mixtures of these elements or oxides with themselves or with yttrium, in an amount of 0À001-1% by weight and has an A. S. T. M. grain size number greater than 3 after cold working and heating at 3700‹ F. for one hour. The alloys are made by melting and remelting in an Ar atmosphere using a permanent tungsten electrode and a water cooled copper mould. The alloys may be annealed at 3300- 4000‹ F.
Patent GB-1066585-A (GB)
Title: Improvements relating to the conveyance of sheet material
Inventor: BRITTAIN CHARLES PETER
IPC: B65G51/03
Filed: 1963-09-25
Abstract: 1,066,585. Feeding sheets and webs. ASSOCIATED ELECTRICAL INDUSTRIES Ltd. Sept. 15, 1964 [Sept. 25, 1963], No. 37778/63. Heading B6B. [Also in Division B8] In a method of conveying sheet material supported by gas under pressure from a region 1, Fig. 2, below the sheet material, the path is inclined to one side so that the material slides into engagement with conveying means. In one example the conveying means comprises parallel endless cables 21A, 21B, 21C carrying spaced brackets 35 supporting the sides of the sheets and having skids which slide along the surface of the plenum chamber 1 to support the brackets. The cables are driven from pulleys at opposite ends of the conveyer and which may be selectively removed to one side so that only one cable is used when wider sheets extend across the whole width. In a modification the sheets are engaged by cranked members (158), Fig. 8 (not shown), pivotally attached to spaced brackets (156) on an endless chain (121). The members (158) have a vertical position (159) at which they are ineffective to engage the sheets and have a horizontal position (160) to which they are selectively moved by an air cylinder (161) for engagement with the sides of the sheets. This arrangement is particularly for use with circular sheets so that selected members may be arranged to engage and locate the sheets and are correctly spaced according to the size of sheet.
Patent GB-1158802-A (GB)
Title: Antifoggants for Silver Halide Photographic Materials
Inventor: REES WILLIAM WENDELL
IPC: G03C1/34
Filed: 1966-08-24
Abstract: 1,158,802. Anti-foggants for silver halide materials. EASTMAN KODAK CO. Aug.24, 1966 [Aug. 24, 1965], No.37939/66. Heading G2C. Photographic silver halide materials contain in the emulsion or a layer adjacent thereto 11 to 50 mg/mole silver halide of a piazine containing a 1, 4-pyrazine ring to which two 6-membered carbocyclic rings are fused symmetrically which carbocyclic rings may be substituted or fused with further carbocyclic rings, the piazine being in the free or quaternized form, as anti-foggant to prevent fog caused by hardening agents and contaminants in polyester film base (1 - 15 mils thick). Specified substituents on the fused carbocyclic rings are hydroxy, amino, acetoxy alkyl and amido groups and specified substituents on the pyrazine nitrogen atoms are alkyl, benzyl, phenyl and hydroxyalkyl groups. The layers of the material may contain hardening agents e.g. oxystarch, muchloric acid, formaldehyde, aziridines, derivatives of dioxane, aliphatic, dialdehydes which may contain alkyl or alkoxy groups on the carbon chain separating the aldehyde groups and aldehyde bisulphite addition compounds.
Patent GB-1444458-A (GB)
Title: Dry shavers
IPC: B26B19/38
Filed: 1974-08-30
Abstract: 1444458 Dry shavers BRAUN AG 30 Aug 1974 [31 Aug 1973] 37966/74 Heading B4B A dry shaver comprises a first cutting unit including a foil 4 and an associated reciprocable cutter 5 and a second cutting unit including a stationary comb-like cutter 6 and an associated reciprocable cutter 7 and a coupling element 13, 14 provided with a contact 23 for co-operation with contacts 20, 21 connected to a main supply, the element being movable between a third position in which the contacts are open, a second position in which the contacts are closed to energize a motor 10, 11 and so reciprocate the cutter 5 and a first position in which the coupling element connects the cutter 7 also to the motor to be reciprocated thereby. The coupling element 14 is provided with a pivoted member 13 which when the coupling element is in the first position engages in a fork formed in the cutter 7 and connects it to a drive-pin 9 provided on the armature 10 of the motor; this coupling device is fully described in U.K. Specification No. 1,160,467. The coupling element is provided with strips 16 slidable between walls 17 of a channel member 18 which is secured to the casing 1 of the shaver; resilient blades 27 are formed on the element 14 for engagement with detents 24, 25, 26 for determining the three positions of the element.
Patent GB-1161896-A (GB)
Title: Process for the Manufacture of a New Polypeptide
Inventor: MACINTYRE IAIN
IPC: C07K14/585
Filed: 1966-08-24
Abstract: 1,161,896. Thyroid gland polypeptides. I. MACINTYRE. 24 Aug., 1966 [26 Aug., 1965; 7 Jan., 1966; 11 July, 1966],. No. 37968/ 66. Heading A5B. A hypocalcaemic polypaptide is obtained from mammalian thyroid gland by extraction with aqueous acid, salt fractionation of the extract, and absorption on gel and elution therefrom in formic acid solution, followed by lyophilisation or evaporation to give the product. The process preferably includes a dialysis of the acid extract, and precipitation with trichloracetic acid at any stage subsequent to the salt fractionation. The preferred starting material is a defatted acetone powder of pigs' thyroid. The polypeptide has a molecular weight of about 2700, and contains most common L-amino acides excepting cystine. Pharmaceutical compositions comprise the polypeptide or its physiologically tolerable acid addition salts or complexes with a carrier, in a form suitable for internal or parenteral administration, and may also contain further unspecified active ingredients. The polypeptide may be reacted with bases or acids, or may be complexed with e.g. hydroxypolygelatin, polyvinyl pyrrolidone, Protamine, polyphloretin phosphate, phytic acid, polyglutamic acid, or suitable sparingly soluble metal compounds; such as Al, Mg, Co, or Zn phosphates, pyrophosphates or hydroxides, to provide, prolonged release forms.
Patent GB-1394727-A (GB)
Title: Blade lift.centreshift controls for motor graders
IPC: E02F3/76
Filed: 1972-08-16
Abstract: 1394727 Graders CATERPILLAR TRACTOR CO 16 Aug 1972 38226/72 Heading E1F A motor grader 11, having a main frame 12 and a draw bar 13 carrying a blade 8, includes a blade control mechanism comprising: vertical lift jacks 19, 21 secured to the ends of drawbar cross-beam 39; crank arms 22, 23 which pivot about longitudinal axes 24, 26 with respect to the frame 12 and which are joined to the lift jacks by brackets 34, 36 allowing pivoting about transverse and longitudinal axes; a hydraulic jack 49 connected between one end of the cross beam and a link 48 joining the crank arms; and a means for pivoting the crank arms. As shown this crank arm pivoting means is a jack 41 which acts, via a linkage 42, on one end of the link 48 to move both crank arms and effect the tilting shown dotted in Fig. 2. In a further embodiment each crank arm is pivoted by a torque tube extending between the arm and a further arm which is turned by a hydraulic jack at the other end of the frame. In a further embodiment (Figs. 3, 4 not shown) rails on the link 48 slide in grooves in an assembly mounted beneath the frame and in addition to jack 49 a hydraulically actuated locking pin mounted on the assembly can engage in holes in one of the rails to lock the blade in a tilted position. A spring normally urges the pin to the locked position.
Patent GB-1115646-A (GB)
Title: Improvements in the production of organotin compounds
Inventor: HOYE PETER ALBERT THEODORE
IPC: C07F7/22
Filed: 1964-09-18
Abstract: Organotin halides are prepared by reacting metallic tin or an alloy thereof with an aliphatic chloride, bromide or iodide at 50-250 DEG C. in the presence of a Group V or VI organic 'onium compound and in the presence of a preformed stannous halide or a preformed organotin halide.  The aliphatic halide may be any compound in which Cl, Br or I is linked to an aliphatic carbon atom, e.g. in an alkyl, aralkyl or alkenyl group optionally containing inert substituents. The preferred 'onium compounds are quaternary ammonium and phosphonium, and ternary sulphonium salts, particularly halides. Preferably the preformed organotin halide is a dialkyltin dihalide which has itself been prepared by a previous operation of the process of the invention. The 'onium compound may be formed in situ from a teriary amine or phosphine and the aliphatic halide reactant, and may be present in amount 0.1 to 0.6 moles per gram-atom of the tin metal.  The preformed stannous halide or organotin halide is preferably present in equimolar proportion to the 'onium compound.  There may be present co-catalysts such as Mg, Zn, Cd, Hg, Co, Ni, Al, Ti, Mn, Fe, Ca, Cr or a compound thereof and also Br2, Cl2, I2 or an interhalogen compound, an alkyl halide or a compound capable of liberating iodine during the reaction.  Ethers or hydrocarbons may be used as inert diluents and small amounts of hydroxylic compounds such as alcohols, phenol and ether alcohols may also be present. The catalyst residue obtained after distillation of the products may be used again.
Patent GB-327184-A (GB)
Title: An improved method of manufacturing gramophone records
IPC: B29D17/00
Filed: 1928-12-31
Abstract: 327,184. Chester, R. H. Dec. 31, 1928. Moulding celluloid-faced phonograph records.- Gramophone records with celluloid, &c. surfaces are moulded between dies in a hot press, e.g. at a temperature of 140-220‹ F. and pressure of 2240 to 3680 lbs. per square inch and are then transferred while still in their dies to a chilling press which may be refrigerated. The record may be in three layers the centre layer having an advertisement &c. design on it which shows through the outer transparent layer.
Patent GB-1408332-A (GB)
Title: Gear pumps
IPC: F04C/
Filed: 1973-08-15
Abstract: 1408332 Internally meshing gear-pumps; cleaning ALFA LAVAL A B 15 Aug 1973 [18 Aug 1972] 38617/73 Heading FIF In an internally meshing gear-pump, means are provided for withdrawing the pinion 10 axially from the ring gear 11 so that cleaning fluid can flow substantially unobstructed from the inlet 7 to the outlet, the ring gear 11 sealingly engaging by its periphery a body 1 and the pinion 10 being rotatably journalled on a projection 14 of a pistonlike wall member 3 which is slidable in a cylinder 2 fixed to body 1, so that hydraulic fluid can be fed to chamber 28 between a piston 24 attached to member 3 and a stationary wall 21 to move the pinion with member 3 from the operative position of Fig. 1 to the inoperative, cleaning, position of Fig.2. The pinion is restored to its operative position by applying hydraulic pressure to chamber 22 between wall 21 and member 3.
Patent GB-879434-A (GB)
Title: Improvements in electric switches
Inventor: BACON JAMES LAWRENCE
IPC: H01H23/02
Filed: 1958-12-01
Abstract: 879,434. Cam-operated switches. MORPHYRICHARDS Ltd. Nov. 13, 1959 [Dec. 1, 1958] No. 38644/58. Class 38 (5). A frame-like base 1 of insulating material has a central bridge 12 carrying two spring strips 3 each with two end contacts 31 co-operating with fixed contacts 22 on strips 2 riveted to outer bridges 13. The base 1 also has upstanding lugs 14 (Figs. 3 and 4, not shown), in which two dollies 4 are pivoted. Each dolly has two cam surfaces for operation respectively on the associated ends of spring strips 3 and shaped as shown in Fig. 2, which is a section on the offset line B-B of Fig. 1. Thus each dolly has three effective positions in which (i) neither spring strip 3 is depressed, (ii) one strip 3 is depressed, and (iii) both strips 3 are depressed. Notches 42 serve to locate the dolly positions and between these positions the surface is shaped so that the spring strip 3 tends to urge the dolly into one or other of these positions.
Patent GB-1006300-A (GB)
Title: Improvements in or relating to hydraulic pumps and reversible pump turbines
Inventor: HARTLAND DEREK
IPC: F03B3/18
Filed: 1962-10-15
Abstract: 1,006,300. Priming centrifugal pumps. ENGLISH ELECTRIC CO. Ltd. Oct. 14, 1963 [Oct. 15, 1962], No. 38855/62. Heading F1C. A hydraulic pump or reversible pump-turbine comprises valve means for substantially blocking communication between the impeller and the suction tube during priming of the pump or of the reversible pump-turbine in operation as a pump. Pumping operation of a pump or pumpturbine is started by a procedure which is substantially the same as that described in Specification 1,006,299, but the means for controlling the power absorption comprises a valve in the suction tube for substantially blocking communication between the impeller and the suction tube. To ensure that the pressure above the valve is always approximately equal to the pressure below it, the valve does not seal tightly in the suction tube. Fig. 2 shows one form of valve, comprising an annular series of sectorial shutters 36, each pivoted in bearings in the wall of the suction tube 20 and in a central fairing 37, the shutters being movable in unison, as by a hydraulic jack, through a control ring 41 acting on crank arms 40. During the starting of the pump, the shutters 36 are closed at or before the stage at which the air in the impeller 11 begins to be progressively replaced by water. During the final removal of the air, the power absorbed by the pump rises rapidly at a rate which tends to be difficult to control. However, the shutters 36, by maintaining the flow in the impeller 11, above the shutters, substantially separate from the flow in the suction tube 20, below the shutters, controls the rate of increase of power absorption to an acceptable value, whereby this phase of the starting operation is spread over a period of 20 seconds instead of a fraction of a second. In alternative forms of the valve, the shutters 36 are replaced by a butterfly valve pivoted about a diameter, or a pair of semi-circular flaps pivotal in opposite directions about their common diameter. As a further alternative, there may be used a sluice gate which is movable into the suction tube in a direction transverse to the axis of the suction tube.
Patent GB-1386887-A (GB)
Title: Fire-retardant material or conglomerate
IPC: C08L61/04
Filed: 1972-08-21
Abstract: 1386887 Expanded phenolic resin material H LIEVREMONT and A COMINASSI 21 Aug 1972 [18 July 1972] 38906/72 Headings C3C and C3R An expanded fireproof building material contains 100 p.b.w. of a phenolformaldehyde resin, 15-25 p.b.w. of magnesium silicate powder and 2À2-9 p.b.w. of granulated split mica and optionally finely granulated lead, one or more powdered substances such as magnesium carbonate, titanium dioxide, silica, slate, wood dust or cork dust, mica, and asbestos, and one or more acicular substances such as glass fibres or organic fibres such as polyamide based synthetic fibres. The material may be made by mixing the ingredients at a temperature between 20-80 C. and while stirring vigorously adding an acid polycondensation agent such as HCl, H 2 SO 4 , H 3 PO 4  or benzene sulphonic acid and an expansion agent such as NaHCO 3  to the mixture and then extruding the mixture at a temperature below 180 C.
Patent GB-1547680-A (GB)
Title: Seperator for potato harvesetsers
IPC: B07B13/05
Filed: 1977-09-19
Abstract: The separating apparatus contains an endless rotating separating band (1) and a stripping device (2) arranged above the working strand of the separating band (1) and near its end. The separating band (1) is provided, on its surface, with elastically flexible fingers (1') forming a field. The stripping device (2) sweeps with stripping bristles (16) over the entire width of the finger field of the separating band (1). The stripping device (2) is designed as an endless bristle band, of which the surface assigned to the separating band (1) extends parallel to that of the separating band (1). This surface of the bristle band forms an angle in the running direction of the separating band (1). The constructionally simple separating apparatus affords a substantially increased separating efficiency than in the known separating apparatuses, even when the separating band has a large width and/or is loaded with relatively high throughput. <IMAGE>
Patent GB-1056264-A (GB)
Title: Improvements in or relating to telephone answering machines
Inventor: RHODES JOHN GEORGE LAYCOCK
IPC: H04M1/654
Filed: 1962-10-15
Abstract: 1,056,264. Telephone answering machines. SHIPTON ELECTRONICS Ltd. Oct. 15, 1963 [Oct. 15, 1962], No. 38935/62. Heading H4K. A telephone answering machine is provided with a pay-tone detection circuit which delays the opening announcement of the machine if there is pay-tone signal on the line, either until the pay-tone ceases or for a predetermined time whichever is the shorter. The Figure shows the preferred embodiment in which relay contacts 5 are closed on detection of a ringing signal, e.g. by the ringing detector circuit of Specification 1,056,277. to initiate the charging of capacitors C1 and C2 through the respective resistors R3 and R4. The time constant of the circuit R3, C1 is 2¢ seconds after which diode 9 will conduct and cause operation of the answering relay amplifier 7 and initiation of the answering machine operation. If, however, pay tone is present on the line feeding transformer T, transistor 1 conductors and holds C1 in a partially charged state but at a potential insufficient to operate the relay amplifier, this condition being maintained until either pay tone ceases, when the potential on C1 will rise to the condition where amplifier 7 is operated in less than one second, or, if pay tone continues, capacitor C2 will charge to a potential such as to operate amplifier 7 approximately 12¢ seconds after contacts 5 are closed.
Patent GB-1128636-A (GB)
Title: Improvements in, or relating to, hinges
Inventor: DOUGLAS JACK ERNEST
IPC: E05D7/086
Filed: 1966-09-01
Abstract: 1,128,636. Hinges. ARTHUR SHAW & CO. Ltd. 1 Sept., 1967 [1 Sept., 1966], No. 39080/66. Heading E2F. A hinge comprises two relatively-rotatable parts 1 and 2, each provided with a housing 6 having one open end, the two housings being arranged in alignment with their open ends adjacent to one another. Each housing receives one end portion of a radially expandable, cylindrical sleeve, which may be in the form of two halves 8 and 9 and which makes a rotatable fit inside the housings. The area of bore of the sleeve decreases from a maximum at each sleeve end to a minimum between the ends. The sleeve surrounds a core comprising two co-axial and axially bored members 12 and 13 each having an external configuration complementary to the corresponding end portion of the sleeve bore and socketting one into the other at their adjacent ends, and the shank of a bolt 19, of which the head is accessible through an opening in the otherwise closed end of one of the housings, extends freely through the bore of one of the core members and is screwed into the bore of the other core member.