baber/WOPTO huggingface dataset:
Patent GB-1079837-A (GB)
Title: A process for manufacture of readily dispersible cocoa powder
IPC: A23G1/56
Filed: 1966-06-08
Abstract: A process for making readily dispersible cocoa powder comprises extracting air existing in or between the cocoa particles by placing the powder in a chamber and evacuating the chamber, and then spraying the cocoa particles with a solution of a surfactant. The chamber and spraying solution may be heated.  The surfactants specified are the monolaurates, monomyritates, monostearates, monopolmitates and monooleates of propylene glycol, sorbitan and glycerine, lecithin and propylene glycol.  The cocoa powder may be mixed with sugar, milk, vitamins and spices.
Patent GB-430237-A (GB)
Title: Improvements in and relating to pistons for internal combustion engines
IPC: F16J1/24
Filed: 1933-09-15
Abstract: 430,237. Valves; valve gear; cylinders. GODSELL, F. G., GODSELL, F. A., and GODSELL, C. H., North Battleford, Saskatchewan, Canada. Sept. 15, 1933, No. 25584. [Classes 7 (ii) and 7 (vi)] [See also Group XXVI] A valve comprising a skirt or extension 1<a> of a piston rotatable upon its rod is given its rotary movement by the swing of the connecting-rod 11, which is attached to the piston by a ball joint 9 and is formed with a pair of projections 13<a>, 13<b> co-operating respectively with pairs of cam surfaces 12<a>, 12b formed on the piston, so that the piston is rotated one-eighth of a revolution at each swing of the rod. The ball-ended connecting-rod 10 enters a socket formed in a pair of plates 4 bolted at 6 to the piston ; or the two halves of the socket may be formed with pins adapted to be received in the usual gudgeon-pin bosses of the piston. The piston extension has ports 15 co-operating with cylinder inlet and exhaust ports 16, 17. The combustion chamber formed in the cylinder head is of conoidal form, and the piston has a cup-shaped projection as shown.
Patent GB-896244-A (GB)
Title: Polyvinyl alcohol fibres of improved dyeability
Inventor: TANABE KENICHI
IPC: D01F6/14
Filed: 1959-07-27
Abstract: Polyvinyl alcohol fibres stated to be of improved dyeability are produced by wet- or dryspinning an aqueous solution containing polyvinyl alcohol and a water-soluble sulpho-group containing polymer, the amount of sulpho-group sulphur being 0,01-10% of the total polymer weight.  Preferably the fibres are stretched to a draw ratio of 2:1 to 12:1, heated and 5-50% of the vinyl alcohol units thereof acetalized with a C1-20 aldehyde.  The sulphopolymer may be a vinyl sulphonic acid polymer or a copolymer thereof with acrylonitrile, vinyl chloride or acrylic or methacrylic acid; the product of acetalizing polyvinyl alcohol with a haloaldehyde or acetal followed by reaction with sodium sulphite, bisulphite or thiosulphate; or the product of reacting allyl chloride-vinyl alcohol copolymers with the said sodium salts.  However, the preferred sulpho-polymer is polyvinyl alcohol containing at least 70 mol. per cent vinyl alcohol units (especially polyvinyl alcohol itself) acetalized with a sulpho aldehyde or acetol thereof; other polymers which may be sulpho-acetalized are the saponification products of vinyl acetate copolymers with acrylonitrile, vinyl chloride, vinylidene chloride, methyl acrylate or methacrylic acid.  The sulphoaldehydes or acetols (of which many are listed in the Specification) are reacted with the polyvinyl alcohol in presence of a mineral acid, e.g. hydrochloric, nitric, phosphoric or sulphuric acid.
Patent GB-150739-A (GB)
Title: Improvements relating to field-magnets for magneto-electric machines
IPC: H02K1/27
Filed: 1920-09-06
Abstract: 150,739. Philipps Akt.-Ges. Sept. 6, 1919, [Convention date]. Magneto-electric machines.-Field magnets for magneto-electric machines applicable for ignition, lighting, &c. are formed in one piece with their pole-shoes and are bent in the form of the letter S. Figs. 2 and 3 show two such magnets b, c, having their S-bends directed towards one another, and secured by bolts d-between supporting-members e.
Patent GB-982598-A (GB)
Title: Improvements in or relating to spray nozzles
Inventor: GYENES PETER IVAN
IPC: B05B1/26
Filed: 1962-07-04
Abstract: 982,598. Spray-producers. AUTO-BATH CO. Ltd. July 24, 1963 [July 4, 1962], No. 25680/62. Heading B2F. A nozzle 4 suitable for fitting to water hose pipes in vehicle washing mechanisms comprises a body portion 5 provided with a cylindrical bore 6 having a frusto-conical surface 7 at one end and an axially adjustable insert 8 having at one end a frusto-conical head 10, the largest diameter of which is at or close to the end of the insert, and at the other end a stem 9 having an axial bore 11 communicating with the bore 6, said head 10 being provided with a series of radial slots 14 at the largest diameter port thereof. The insert is axially adjustable within the body portion by means of a screw thread and water forced through the bores 6 and 11 reaches the frusto-conical outlet and the slots 14 via radial passage at the waist 13 of the insert. A plurality of the nozzles may be provided in a system of pipes arranged to surround a vehicle to be washed.
Patent GB-246569-A (GB)
Title: Improved means for running off hot liquids from a container under pressure
IPC: F22B37/54
Filed: 1924-10-28
Abstract: 246,569. Carpmael, W., (Farbenfabriken vorm. F. Bayer & Co.). Oct. 28, 1924. Blow-down apparatus. - Hot liquid from a container c, under pressure, is run into a container b at a lower level through a pipe d, the pressure in c and b being equalized by a pipe g. When the container b is full the cocks e and a are closed and the steam may be led off by opening a valve h to heat feedwater in a tank k, the valve h being closed when the pressure in container b falls to atmospheric pressure. The water may then finally be run off by opening a cock i.
Patent GB-965500-A (GB)
Title: Diode manufacture
IPC: H01L23/04
Filed: 1962-07-05
Abstract: 965,500. Semi-conductor devices. ERIE RESISTOR CORPORATION. July 5, 1962 [July 6, 1961], No. 25766/62. Heading H1K. A PN diode is produced by uniting a globule of solder to each face of a single crystal containing a PN junction, etching to remove edge portions of the crystal, testing and if satisfactory, completing manufacture by attaching leads and encapsulating. Fig. 3 shows a silicon PN crystal with electroplated nickel electrodes 2, 3 and lead-tin solder globules 5. The crystal is then etched, covered with a protective lacquer, the ends removed so that has the form shown in Fig. 6 when it is subjected to test. Satisfactory diodes then have leads attached and are encapsulated in glass as shown in Fig. 7, or embedded in plastic.
Patent GB-181285-A (GB)
Title: Improvements relating to machinery guards
IPC: F16P3/12
Filed: 1921-09-30
Abstract: 181,285. Johnston, J. L. Sept. 30, 1921. Guards. - A guard for the intake nip of a pair of rollers 1, 2 of a calendering . machine &c. comprises a roller 3 mounted in a pivoted bracket 5 which bears, under the action of a spring 6, or equivalent means, upon the roller 1. The material is fed to the rollers in the direction of the arrow x. The operator's fingers cannot be caught between the rollers 3, 2 as they rotate in opposite directions. If, when the machine is running idle, the operator's fingers are caught between the rollers 1, 3 the roller 3 contacts with the roller 2 and its direction of rotation is reversed thus releasing the operator's fingers.
Patent GB-143467-A (GB)
Title: New or improved box or carton for containing and blowing powders
IPC: A47G19/24
Filed: 1919-10-22
Abstract: 143,467. Smith, E. J. Oct. 22, 1919. Powder blowers.-A cardboard box or carton for containing and blowing powder is formed as a truncated three-sided pyramid with a spring 3 interposed between one side and the angle of the other two. A discharge aperture 2 is formed at one end, which, prior to use may be covered by an adhesive label.
Patent GB-1491646-A (GB)
Title: Device for administering an anaesthetic to a patient
IPC: A61B17/42
Filed: 1976-06-22
Abstract: 1491646 Injection device KENDALL CO 22 June 1976 [23 June 1975] 25922/76 Heading A5R A device suitable for use in paracervical or trans-pudendal anaesthesia during childbirth comprises a sleeve assembly comprising a tube 52 attached at its proximal end to a hollow frusto-conical member 48, and a needle assembly comprising a hollow needle 30 and a hollow frusto-conical connecting member 28 having two outwardly extending tabs 42, the needle assembly being slidably mounted within the sleeve assembly such that the needle 30 extends through the tube 52 and is movable between a position, Fig. 10 in which the tip of the needle is retracted into the sleeve and a position Fig. 11, in which the tip of the needle projects from the sleeve to a predetermined extent, the needle assembly being releasably retained in each of its two position by the engagement of the tabs 42 in slots in the member 48, said sleeve assembly also being provided with a flexible member 84 comprising an annular retaining member 86 and a pair of loops 88 which engage in notches 44 in the tabs 42 and are stretched when the needle is in the retracted position, thereby biassing the needle to its projected position. As shown in Fig. 6, the proximal end of the member 48 has two opposed notches 68 for locking the needle assembly in the retracted position and two opposed pairs of slots 70, 70' for locking the assembly in the projected position, the slots 70, 70' having different lengths thereby providing two different projected positions for the needle; the needle is moved from the retracted to the desired projected position by rotation of the connecting member 28 of the needle assembly relative to the sleeve assembly. A guide 74 having a ring (76), Fig. 5 (not shown), for the physician's thumb is slidably attached to the tube 52. The anaesthetic is administered by means of a syringe (S), Figs. 2 and 3 (not shown) whose tip (T) is secured to a flange 38 at the proximal end of the member 28. Springs may be used instead of the loops 88 for biassing the needle towards its projected position.
Patent GB-1242011-A (GB)
Title: Chain scraper assemblies
Inventor: COLLIER PAUL ARTHUR
IPC: B65G19/08
Filed: 1969-05-21
Abstract: 1,242,011. Endless scraper-chain conveyers. PARSONS CHAIN CO. Ltd. 21 May, 1969, No. 25948/69. Heading B8A. In a scraper conveyer having a single central chain C, the scraper bars B have slots 1 (Fig. 1) for engagement with the chain links L, limbs of the latter being enslaved on deformation of the bar (Fig. 2). Alternatively instead of the whole bar being deformed a portion 12 of the wall of each slot is deformed (Figs. 6 and 7).
Patent GB-504699-A (GB)
Title: Improvements in balance wheels for watch movements
IPC: G04B17/28
Filed: 1938-09-07
Abstract: 504,699. Balances for watches. MANUFACTURE DES MONTRES ROLEX AEGLER SOC. ANON. Sept. 7, 1938, No. 26133. Convention date, July 29. [Class 139] A balance wheel for watches has one or more of its plane rim surfaces preformed with small surfaces, at a level different from that of the plane surface, to indicate where the wheel may be modified to give equilibrium. The small surfaces may be at the bottom of holes 9 drilled in the rim surface 4, Fig. 2, or at the top of lugs 11, Figs. 3 and 4, formed on rim 4. 2 is the diametral arm of the balance wheel. To equilibrate the wheel, metal may be drilled off the bottom surface 10 or off the cylindrical surface of the hole 9 at those holes selected by the workman ; or certain holes could be filled in. In Figs. 3 and 4, metal may be filed off the surface 12 or a hole drilled therein. Holes 9 may be cylindrical, conical or polygonal with flat or conical bottom. Lugs 11 may be cylindrical, hemispherical, conical, or polygonal.
Patent GB-707925-A (GB)
Title: Improvements in or relating to dyeing
IPC: D06P1/62
Filed: 1951-11-08
Abstract: In the dyeing or printing of wool with dyestuffs containing no or only one sulphonic acid group, the wool is treated previously or simultaneously with a levelling agent comprising a water-soluble condensation product of urea or formaldehyde with a sulphonic acid of an aromatic compound containing one or more phenolic hydroxyl groups, or a water-soluble salt thereof. Specified condensation products are those of urea or formaldehyde with a mono-, di- or tri-sulphonic acid of a phenol, e.g., cresol or a naphthol.  Treatment with an acid or an ammonium salt of an acid, e.g., acetic, hydrochloric, phosphoric, sulphuric, lactic, formic or boric acid or an ammonium salt thereof, may be effected simultaneously with, prior to or subsequently to the treatment with the levelling agent and/or the dyestuff.  Glauber's salt, Epsom salt, potassium chloride, sodium chloride, ammonium chloride and/or a wetting agent may be added to the dyestuff solution or paste.  The process may be effected on yarns, fabrics or made-up articles of wool or of wool in admixture with other fibres. Specified dyestuffs are chrome mordant, metachrome, afterchrome, premetallized, polar, coomassic or cloth-fast dyes, "Carbolan" (Registered Trade Mark) and fluorescent dyestuffs.  Numerous Examples are given.
Patent GB-318918-A (GB)
Title: Improvements in and relating to sewing machines
IPC: D05B35/02
Filed: 1929-08-29
Abstract: 318,918. Union Special Machine Co., (Assignees of Riviere, A. S., and Rubel, C. F.). Sept. 12, 1928, [Convention date]. Work guides.- A sewing machine for uniting fabric sections to form the flat seams described in Specification 108,811, particularly for use with artificial silk fabrics, has a rib on the work support for guiding the upturned edge portions to the sewing point so mounted that it can be slid away from the presser-foot to facilitate the passing of cross seams and tapes, and a presser-foot with a guiding slot and a rear resilient portion. The guiding rib 10 is carried on a plate 15 sliding in a slot 16 in the upper surface of the work supporting arm 1. At the forward end of the rib is a tongue 11 and a recess 12. The edges of the fabric to be united are guided to the three-needle sewing point 3, and one edge is held vertical by the tongue 11 to ensure a perfect overlap when the sewing point is reached. When a cross seam or tape reaches the sewing point, jamming is prevented by stopping the machine and moving the slide 15 to the rear end of the slot. Presser feet.-The presser-foot 4 has a slot 9 into which the edges of the fabric are glided. Surfaces 14 assist in turning down and overlapping the edges. The foot carries the usual stationary trimming blade 5. At the rear of the foot is a resilient part 17 pressed downwards by springs 20 and guided by arms 18 in slots in the foot. When the forepart of the foot is lifted by a seam, the part 17 holds the fabric firmly on the work plate and when the seam passes under the part 17, it is lifted against its spring, leaving the forepart in normal position. A slot 21 is cut in the under-surface of the part 17 to allow the enchained stitches to clear it.
Patent GB-443165-A (GB)
Title: Improvements in hydraulic valves
IPC: B30B15/16
Filed: 1934-09-14
Abstract: 443,165. Hydraulic presses &c. TAYLOR, A. W., 5, New Brown Street, Manchester, and BOLTON, E. A., Cale Green House, Cale Green, Stockport. Sept. 14, 1934, No. 26376. [Class 69 (ii)] An arrangement of valves, for controlling the supply of low and high pressure water to hydraulic presses &c., of the type in which the high pressure inlet valve is automatically opened and the low pressure inlet valve automatically closed when the low pressure supply has exerted its maximum effect, comprises a casing provided with a high pressure inlet valve c, a low pressure inlet valve b, a control valve F and an exhaust valve G. When the valve F is opened, low pressure water entering at B lifts the valve b against spring action and passes through a passage A and port D to the press. The pressure in the passage A obtains access through a passage f<5> in the valve F and a port m to the underside of a piston c<2> on the spindle of the valve c adjustably loaded by a spring c<3>; when this pressure becomes equal to that of the low pressure supply, the valve c is lifted to admit high pressure liquid which passes to the press and closes the low pressure inlet valve b. When the exhaust valve G is opened, and the valve F closed, the valve c is reclosed by the spring c<2> and the pressure action on a piston c<1>. The exhaust valve G has a pilot valve g<2>, the valve F is held on its seat by a spring f<4> and pressure on a piston f and the high pressure inlet C may be connected to sources at different pressures.
Patent GB-1217340-A (GB)
Title: Gear pitch comparison apparatus
Inventor: SMITH PHILIP
IPC: G01B7/28
Filed: 1967-06-07
Abstract: 1,217,340. Testing gear pitch, electrically. NATIONAL RESEARCH DEVELOPMENT CORP. May 30, 1968 [June 7, 1967], No.26392/67. Heading G1N. In apparatus for measuring the pitch of gear teeth as a gear wheel is rotated, two measuring probes are inserted into gaps between teeth and a voltage signal representing the difference in the gear teeth span from a norm is derived from the difference between the output signals from the probes, which voltage is fed to a sample-and-hold circuit 15 to cause a storage capacitor to charge or discharge towards the value of the voltage signal during a time period determined by a sampling pulse initiated when the output signal of one probe reaches a first level and terminated when the output signal of the one probe reaches a second level. At the end of the sampling period, the voltage across the capacitor is indicated on a voltimeter 23 and a relay 25 is energized to withdraw the probes. Since the duration of the sampling pulse is inversely proportional to the speed of rotation of the gear wheel, compensation is provided for the effect of the speed of rotation on the value of the difference signal. Probe details. The probes are slidably - mounted on a cross head, the spacing between them being accurately set to one or a multiple of the nominal span of the gear teeth. The cross head is pivotally mounted for swinging towards and away from the gear wheel. The probes may be contact probes the degree of deflection of which inductively alters the magnitude and/or phase of an alternating voltage. Alternatively, the back pressure on jets of air directed on the gear teeth may be measured as an indication of the proximity of the flank of a tooth to the probe. Sample-and hold circuit details. In the sample and hold circuit, the storage capacitor (c) is charged or discharged as appropriate through diodes (D1, D2) towards the voltage applied to the emitter of a transistor (T 1 ) which becomes conducting when a sampling pulse is applied to the base of a second transistor (T 3 ). The voltage across the capacitor (c) is fed to a field effect 'transistor (T2) and thence to the voltmeter 23.
Patent GB-660754-A (GB)
Title: Tanks for products requiring to be heated before discharge
IPC: B61D27/00
Filed: 1949-10-14
Abstract: 660,754. Heating liquids in bulk. SHELLMEX & B. P., Ltd., and FOWLER, C. J. Oct. 14, 1949, No. 26400/49. Class 64(iii) In a tank 1 for the storage of products required to be heated before discharge, e.g. bitumen and other heavy petroleum products, a heating flue pipe through which hot gases can flow from a liquid fuel burner has a generally horizontal portion 5 extending adjacent to the bottom of the tank from the external inlet 4 at one end of the tank to the other end and then back to a point near the inlet end, where it bends into a generally vertical portion 6 extending to the external outlet 7, which is at the top of the tank near the same end as the inlet. The inlet end of the pipe may be lined with a removable cast-iron sleeve. Two such pipes may be provided.
Patent GB-989240-A (GB)
Title: Liquid pumps and motors of the swash plate type
Inventor: FREEMAN FRANK GEORGE
IPC: F01B3/00
Filed: 1962-07-10
Abstract: 989,240. Reciprocating pumps and motors. JOSEPH LUCAS (INDUSTRIES) Ltd. July 8, 1963 [July 10, 1962], No. 26435/62. Heading F1A. In a swash plate pump or motor comprising a hollow body 1 formed at one end with an inlet and outlet (not shown) and containing a rotor 2 provided with a number of bores 3 containing pistons 4 having, on their outer ends, shoes 7 which engage recesses in a slipper ring 10 in facial contact with an obliquely disposed or disposable stationary cam plate 12, the shoes 7 and the recesses in the slipper ring 10 have complementary undercut and interengaging surfaces whereby the shoes 7 are prevented from movement away from the ring 10 in the direction in which the pistons 4 are reciprocable. Part circular undercuts in the ring 10 form lips 11 . which overlie flanges 8 on the shoes 7 to prevent movement of the latter. The cam plate 12 is pivotable about an axis 13 by a fluid pressure operated piston 14. Arcuate inlet and outlet ports (not shown) are formed in a valve plate 15 and communicate with the inlet and outlet in the body 1.
Patent GB-257769-A (GB)
Title: Improvements in multiplex carrier wave signalling systems
IPC: H04L5/06
Filed: 1925-10-22
Abstract: 257,769. Western Electric Co., Ltd., (Bell Telephone Laboratories, Inc.). Oct. 22, 1925. Multiplex signalling; undesired signals, eliminating.-In a multiplex wired wireless signalling system, interference in a receiving channel RC2 by signals of frequencies appropriate to neighbouring channels RC1 and RC3 is eliminated by providing in the relay R2 of the channel auxiliary coils 3, 5 which are connected to the neighbouring channels so as to neutralize the effect of signals appropriate to those channels which leak through the selective circuit RSC2 and the detector amplifier DA2 of the channel RC2. A low-pass filter F2 suppresses beat frequencies produced by heterodyning between the main current and interfering currents. Specification 142,115 is referred to.
Patent GB-348982-A (GB)
Title: Improvements in and relating to electric regulating systems
IPC: H02J3/34
Filed: 1930-09-05
Abstract: 348,982. Automatic regulation of motor-generators. BRITISH THOMSONHOUSTON CO., Ltd., Crown House, Aldwych, London.-(Assignees of Carothers, R. M. ; 6, Hampton Avenue, Thompson, L. W. ; 53, Baker Avenue, both in Schenec. tady, New York, U.S.A.) Sept. 5, 1930, No. 26589. Convention date, Sept. 6, 1929. [Class 38 (iv).] To maintain the power factor of an A.C. motor driving a generator as the load varies, the field current of the motor is varied in response to voltage variations of the generator. In the Figure the motor 2 and the generator 3 are each shown with an exciter automatically regulated by a Tirrill regulator. According to the invention, the exciter coil 30 of the motor field regulator is opposed by a coil 36 responsive to the excitation voltage of the generator, so that, for example, as the generator field voltage is automatically raised with the load, by the operation of the voltage coil 20 of the generator regulator, the excitation voltage of the motor becomes correspondingly increased.
Patent GB-267348-A (GB)
Abstract: 267,348. Pinson, F. W. April 28, 1926. Locks, cases for; padlocks. - A padlock casing comprises a keyhole plate o surrounded by a flange o<2> and a plate p carrying the mechanism of the lock movement, the plate p having a series of lateral tongues p<1> adapted to be engaged between projections o<3> on the flange, the casing being completed by a back-plate which is placed over the movement plate and secured in position, preferably by spinning or turning the edge of the flange c<2> over the plate j. The casing is described as employed for a shackle d that slides and turns. The shackle e and the posts h, i for the tumbler and shackle springs b, c respectively are formed by piercing tongues out of the plate p and bending them out of the plane. The mechanism of the lock movement is mounted on the plate p before the casing parts are assembled. The shackle comprises a long leg d<1> which serves as a sliding pivot, and a shorter leg d<2>, the end d<3> of which engages a hole d<4> when the shackle is locked. The leg d<1> is provided with a notch d<6> engaged by the head a<1> of the tumbler, the lower extremity of the shackle being formed with a projection d<7> that serves as a stop when the shackle is released from the tumbler by a key and shot into its released position by the spring c.