baber/WOPTO huggingface dataset:
Patent GB-1165245-A (GB)
Title: Improvements in and relating to Valves for the Control of Fluid Flow
Inventor: AMBROSE BRIAN EDWIN
IPC: G05D16/06
Filed: 1967-06-02
Abstract: 1,165,245. Valves. C. A. PARSONS & CO. Ltd. 23 May, 1968 [2 June, 1967], No. 25540/67. Heading F2V. A valve usable in high vacuum systems has a unitary glass body part 1 provided with an inlet 2 and an outlet 3, and a steel cover 5 held in place by a knurled locking ring 9 held captive on part 1 by an asbestos retaining ring 8. A neoprene or fluorocarbon rubber diaphragm 4 controls the flow in response to rotation of knob 7 and consequent axial displacement of shaft 6.
Patent GB-1461896-A (GB)
Title: Dentifrices
IPC: A61K8/49
Filed: 1975-06-16
Abstract: 1461896 Dentifrices COLGATE-PALMOLIVE CO 6 June 1975 25656/75 Heading A5B A dentifrice contains as a sweetener from 0.01 to 10.0% by weight of at least one member selected from the alkali metal salts, alkaline earth metal salts and free base of 3, 4-dihydro-1, 2, 3-oxathiazin-4-one. Antibacterial agents may also be present and a number of typical antibacterials are specified.
Patent GB-1506134-A (GB)
Title: Method and apparatus for filtering mash
IPC: C12C7/16
Filed: 1976-06-21
Abstract: 1506134 Filter press for filtering mash A ZIEMANN GmbH 21 June 1976 [21 July 1975] 25656/76 Heading BID [Also in Division C6] In the preparation of beer, mash is clarified to produce wort using a filter press apparatus comprising alternating mash chambers 16 and wort chambers 27 defined by frames with filter cloths arranged on each side of the wort chamber frames, the classification being effected by (i) introducing mash from one brew or in one charge into the mash chambers for wort flow through the filter cloths into the wort chambers; (ii) removing all wort remaining in the wort chambers after completion of such clarification; and (iii) supplying washing or sparging water into one of each pair of wort chambers for flow through the sediment in the mash chambers and discharge as after-wort from the other of each said pair of wort chambers, the direction of washing flow between each pair of wort chambers being reversed for consequetive brews or charges. The filter apparatus comprises mash inlet channel 78 leading into all mash chambers and two feed pipes for water and two discharge pipes for wort (lines 74, 76) connected to the wort chambers by means of branch pipes (75 77), each one of the feed pipes and discharge pipes being connected to alternate wort chambers. First wort remaining in chambers 22 after filtration may be completely removed by supply of tempered brewing water from above (lines 70, 72). The after wort is removed by forcing air into alternate wort chambers by lines 70, 71 or 72, 73. Suitable form of filter press frame are described wherein the feed pipes 70, 72, 74, 76 are formed by pipe sections afixed to each corner of the press frames and communicating with radial bores through the frames at diagonally opposite corners, such that rotation of alternate frames through 180‹ provides the required alternate connection to lines 70 and 76 or 72 and 74. Alternatively, pairs of pipe sections may be combined in a single fitting ata frame side.
Patent GB-687129-A (GB)
Title: Power operated rotary impact tool
IPC: B25B23/14
Filed: 1951-11-02
Abstract: 687,129. Screwing-up nuts. DISSER, M. E. Nov. 2, 1951, No. 25733/51. Class 83 (iii). A power-operated rotary impact wrench comprises means for imparting a succession of impulses to a driving member 23, a driven member 42, and means 50 for connecting the members and for cancelling-out the effect of the impulses when the load on the driven member exceeds a predetermined value. An electric driving motor 12 is associated with a rotatable pole-changing device 18 for reversing. The motor is connected to the anvil 23 via gearing 13, 28, 29, a planet frame 27, a non-rotatable sliding sleeve 32 and interengaging lugs 33, 24. The anvil is rotated continuously until its rotation is opposed, when the sleeve 32 is intermittently forced back against a spring 34 so as to deliver a series of impacts. The anvil 23 is connected to the tool-holding member 42 by a sleeve 35, which is attached to the anvil by a polygonal projection carrying a retaining ball 39, a member 40 fast with the sleeve 35, and a torsion spring 50. The torsion of the spring 50 is adjusted and maintained by screws 49 engaged in a plurality of holes 47. The heads of the screws project into slots 48 in the sleeve 35. Thus, when the torque exerted on the work exceeds the torsion of the spring, the screws 49 slide in the slots 48 and absorb the impact forces. The device 35 may be used on any type of rotary impact tool. In a modification, the slots 48<SP>1</SP>, Fig. 5, are inclined so as to withdraw a toothed member 56 out of contact with a similar member 57 when the maximum torque is exceeded. A removable head 44, on either tool, is retained by a spring-pressed ball and is shaped according to the nut or bolt to be rotated.
Patent GB-421843-A (GB)
Title: A process for stabilising peroxide solutions
IPC: C01B15/037
Filed: 1933-09-18
Abstract: Soluble salts of the acid pyrophosphoric esters of aliphatic alcohols containing at least eight carbon atoms in the molecule are used for stabilizing peroxide solutions, particularly peroxide solutions used for bleaching and disinfecting.  The wetting and penetrating properties of the solutions are also enhanced.  In an example, wool is bleached in a hydrogen peroxide bath containing also ammonia and the sodium salt of the acid lauryl pyrophosphoric ester.  Ester salts derived from myristyl, oleyl, and ricinoleyl alcohols may also be used.  The pyrophosphoric acid esters may be prepared similarly to the sulphuric acid esters.  For example, dodecanol is heated with pyrophosphoric acid and when the reaction mass thickens, the reaction is continued with the addition of petroleum ether.  The esters may also be prepared by treating the sulphuric acid esters of the higher alcohols with sodium pyrophosphate.ALSO:Soluble salts of the acid pyrophosphoric esters of aliphatic alcohols containing at least eight carbon atoms in the molecule are used for stabilizing peroxide solutions.  In an example, a bleaching bath containing hydrogen peroxide and ammonia is stabilised by adding the sodium salt of the acid lauryl pyrophosphoric ester.  Ester salts derived from myristyl, oleyl, and ricinoleyl alcohols may also be used.ALSO:Soluble salts of the acid pyrophosphoric esters of aliphatic alcohols containing at least eight carbon atoms in the molecule are used for stabilizing peroxide disinfecting solutions.  In an example, a hydrogen peroxide solution is stabilized by means of the sodium salt of the acid lauryl pyrophosphoric ester.  Ester salts derived from myristyl, oleyl and ricinoleyl alcohols may also be used.
Patent GB-1205161-A (GB)
Title: Improvements in or relating to railway vehicle suspensions
Inventor: BING ALAN JOHN
IPC: B61F5/02
Filed: 1968-05-29
Abstract: 1,205,161. Rail vehicle undercarriages. BRITISH RAILWAYS BOARD. 22 May, 1969 [29 May, 1968], No. 25847/68. Heading B7L. A rail vehicle comprises at least one wheel set at each end thereof, each set supporting a bolster 2 through a laterally compliant suspension in the form of swing links 3, connecting means in the form of a member 6 rigidly attached to the bolster 2 and pivoted to the vehicle body 5 at P so that the body 5 will be constrained to move laterally with the bolster 2 under centrifugal force but permitting tilting of the body 5 relative to the bolster 2, and servo controlled actuating means 7, 8, to tilt the body 5 relative to the bolster 2 through an angle related to the centrifugal force, so that the effective tilt centre O of the vehicle body lies in the central longitudinal plane of the vehicle 9 normal to the track and above the floor of the vehicle. In a modification, Figs. 3, 4 (not shown), coil springs in series with the servo controlled hydraulic jacks 7, 8 permit relative movement between the body 5 and swinging bolster 2, the pivot P being replaced by a tie bar pivoted to the body and the member 6 which is displaced to one side of the central vertical longitudinal plane 9. When cornering, Fig. 2, the body floor is at an angle Qd to the track so that the resultant force of a passenger will be perpendicular to the floor. The tilt centre O is at a distance from the pivot P, approximately equal to the length of the swing links 3. The tilt actuating means, Fig. 7 (not shown), comprises double acting jacks 7, 8 the upper chamber of each being connected to the lower chamber of the other by conduits which are interconnected through an hydraulic pump controlled by an accelerometer. Thus on a signal from the accelerometer the pump will transfer fluid from one pair of interconnected chambers to the other thus raising one piston and lowering the other. Pneumatic or mechanical accumulators connected to the conduits provide vertical and roll suspension. A pair of vehicles may be joined by means of a steering beam 13, Fig. 5 (not shown) and Fig. 6 which is articulated at its ends to vertical and roll pivots on the centre lines of the bodies and is mounted on a pair of wheel sets through a tie bar 11, bolster 2 and swing links 3.
Patent GB-231396-A (GB)
Title: Improvements in ball-bearings for flyers
IPC: D01H7/40
Filed: 1924-10-30
Abstract: 231,396. Matterson, W. C. M. Oct. 30, 1924. Ball bearings.- The inner race 1, 2, or any part thereof, of the ball bearing carrying a positively driven flyer of spinning and doubling machines and the like, is made from sheet metal pressings. As shown the inner race members 1, 2 are secured on a drawn sleeve 6 carrying a driving pulley 8 by a screwed flanged cover 7. The outer race member 11, which is preferably secured to the framing at three points to avoid distortion, may be made from sheet metal, and has an annular oil channel 3 in which the inner race member 2 dips and carries oil to the bearing.
Patent GB-502804-A (GB)
Title: Improvements in and relating to toggle-links and the methods for producing them in pairs or sets
IPC: F16G13/02
Filed: 1937-09-24
Abstract: 502,804. Making toggle - links. HUMPHRIS, F. Sept. 24, 1937, No. 25889. [Class 83 (ii)] In a method of making toggle-links, two or more links a are formed together end to end in a long casting a<1> or in a ring casting or in a metal block, the metal being accurately bored to form holes b and machined to form external bearing surfaces c or recesses a<5> around the holes and then cut transversely along planes f passing through the axes of the holes so as to form the separate links. Alternate hole portions are cut straight through to form the end-joint bearing parts b<2> of adjacent links while the other hole portions aro cut so as to remove a sector of metal g and form the centrejoint bearing parts b<1> of adjacent links. A flange a<4> surrounding each hole may be machined to form an external bearing surface c or alternatively the flange may be dispensed with and a bearing recess a<5> formed in the casting or block. Feet e with milled or ground ends are provided on the casting a<1> to position the casting during boring and machining. The legs may afterwards be removed. The links may be formed with lubricating passages and with transverse slots d to accommodate a rod or other device for reciprocating the centre-joint pin.
Patent GB-1517067-A (GB)
Title: Production of dispersions of polyvinyl acetate
IPC: C08L31/04
Filed: 1976-06-23
Abstract: 1517067 Production of polyvinyl acetategrafted-PVA dispersions ANIC SpA 23 June 1976 [24 June 1975] 26003/76 Heading C3P An aqueous dispersion of polyvinyl acetate in which the polyvinyl acetate is grafted on to a polyvinyl alcohol, is prepared by polymerizing vinyl acetate in aqueous dispersion in the presence of (a) at least one peroxide and/or persulphate, (b) a reducing agent comprising at least one mono- and/or dicarboxylic acid, (c) an acetate and/or sulphate of an element of Group VIII of the Periodic Table, (d) a bicarbonate and/or an acetate of an alkali and/or alkaline earth metal and (e) polyvinyl alcohol or a partially esterified polyvinyl alcohol; component (d) being added throughout the polymerization. An optional additional component is a modifier which is an aldehyde with a boiling point under 70 C. or an ester of a butyl alcohol with a boiling point above 150 C. Specific examples of component (b) are formic acid, tartaric acid, maleic acid and oxalic acid. Preferred Group VIII elements for the salt of component (c) are Fe and Co. Specific optional modifiers are propionaldehyde, acetaldehyde, crotonaldehyde, butyraldehyde, and butyl glycolate. The dispersions are used as adhesives.
Patent GB-616206-A (GB)
Title: Improvements in or relating to machines for stretching hat bodies and the brims of hat bodies
IPC: A42C1/04
Filed: 1946-08-29
Abstract: 616,206. Hat-making machines. CASSE, M. Aug. 29, 1946, No. 26028. Convention date, March 29, 1945. [Class 63] A machine for stretching a hat body supported on a freely rotatable block 44, comprises inwardlyinclined, tapered, rotary rollers 4 on which the body rests, and stretching bars 14 arranged between the rollers and reciprocated vertically so as to have a long downward stroke in contact with the body. The rollers have deep ribs in the form of a longpitch thread so arranged that, as they rotate, the hat body is rotated and also is pulled downwardly, and the bars 14 have teeth. The rollers are rotated by pinions 5, a bevel gear 6, pinions 9, 10 and a pulley 12 with clutch member 11. The bars 14 are angularly adjustable on levers 15 which are pivoted at 19 to an annular slide 21, and each lever has an arm 22 engaging a channel 23 in a slide 24. The two slides are reciprocated by a crankshaft 27-30, driven by the pinion 10, in such manner that the bars rise in the open position, are then closed by the slide 24, next descend in contact with the hat body, and finally re-open, the cycle being repeated until a trip member 34 driven by a worm 32 on the crank shaft disengages the clutch.
Patent GB-1049683-A (GB)
Title: Improvements in the treatment of cellulosic materials
IPC: D06M15/423
Filed: 1964-06-24
Abstract: Cellulosic stock, yarn or fabric is impregnated with a solution containing a catalyst and a resin-forming component comprising the product of the reaction of urea, glycol and formaldehyde in the presence or absence of methanol, excess solution is removed, the impregnated material is dried at a temperature below the curing temperature of the resin and in the case of stock or yarn made up into fabric, and the fabric is made up into a garment and pressed, is pleated or is treated to develop the nap, and is subsequently heated to an elevated temperature to cure the resin, to produce ready-to-wear crease resistant garments or permantly pleated fabrics or permanently resilient and lofty napped or pile fabrics respectively.  Cotton, viscose rayon, cuprammonium rayon or linen fibres alone or in admixture with nylon or "Terylene", "Orlon" or "Dacron" fibres (Registered Trade Marks) may be treated.  The materials treated may be impregnated with an aqueous or alcoholic solution containing 2-20% by weight of the resin-forming component and an acid catalyst, e.g. the hydrochloride of 2-amino-2-methyl-1-propanol, maleic acid, tartaric acid, citric acid, zinc nitrate, magnesium chloride, zinc fluoborate or zinc chloride, by spraying, dipping or padding, and dried at an ambient temperature of 160 DEG -300 DEG F. to a moisture content of 3-15% by weight. Curing may be effected at 275 DEG -375 DEG F. for from 30 seconds to 30 minutes.  The treating composition may also contain an emulsified polyethylene softener, a glycerol monostearate softener or an aqueous dispersion comprising paraffin wax and aluminium acetate or zirconium acetate.  After drying and prior to curing fabric may be subjected to compressive shrinkage.  Example II refers to the manufacture of men's trousers by the process.
Patent GB-154770-A (GB)
Title: Improvements in and relating to fastening devices for fire guards
IPC: F24B1/192
Filed: 1919-10-25
Abstract: 154,770. Kaye, J. V., and Keighley, S. Oct. 25, 1919. Fire-guards.-A locking-device for preventing the lifting of a fireguard consists of a fitting A, attached to the guard, carrying a sliding bolt B which is grooved at G and notched at C and C<1>, and which, when pushed home into a socket in the fire - place, is locked by the spring catch D engaging in the notch C. A key, inserted in the aperture F, operates the lever F<2>, pressing back the catch D and allowing the bolt B to be withdrawn.
Patent GB-429079-A (GB)
Title: Improvements in and relating to combs
IPC: A45D24/04
Filed: 1934-04-27
Abstract: 429,079. Magnetic combs. CHAPMAN, A. E., 125, Stanley Park Road, Carshalton, Surrey. April 27, 1934, No. 26238. Divided application. [Class 81 (ii)] A magnetic comb is characterized by the provision on an ordinary comb, of a U-shaped magnetic element the limbs of which lie against the sides of the comb. The magnetic element may be coated with electric insulating material such as enamel to prevent removal of static electricity from the surface of the body. In the Figure a comb d of insulating material is enclosed in a U- shaped sheet c of enamel-covered magnetic material formed with teeth which may overlie all the teeth of the comb or, as shown may be of staggered formation. An additional U-shaped magnetized sheet may be made to embrace the comb such that in one position it reinforces the magnetic action, and in the reverse position it acts as a keeper. Instead of permanent magnets electromagnets may be used. The Provisional Specification refers to a comb made of permanently magnetized material, adjacent teeth of which are of the same or of opposite polarity, or made from two or more sheets of magnetic material separated by non-magnetic material and having teeth of opposite polarity.
Patent GB-817469-A (GB)
Title: Improvements in or relating to non-contact target apparatus
Inventor: GALPIN HAROLD HENRY ALBERT
IPC: F41J5/02
Filed: 1955-09-15
Abstract: 817,469. Non-contact target apparatus. RANK CINTEL Ltd. Sept. 14, 1956 [Sept. 15, 1955], No. 26435/55. Class 40 (3). The invention relates to non-contact target apparatus responsive to occultations of a zone around the target, and having an optical system such as that described in Specification 817,468. To identify which sector around the target a projectile passes through, an obturator having annular slits with different radial spacings in each sector is placed in front of the photo-cell, Fig. 2, whereby the passage of the projectile produces a signal with different pulse spacings for each sector, Fig. 3. The first and last slits in the obturator are continuous and therefore provide pulses in all sectors representing the time taken by the projectile to traverse the target zone. The relative positions of the other signal pulses within this zone may be resolved visually, or by a circuit using a storage tube in which the reading beam is deflected at a velocity proportional to the time elapsing between the first and last signals, whereby the recovered signals will all have the same time scale, and may then be sorted by known circuit arrangements.
Patent GB-335038-A (GB)
Title: Improvements in optical projecting apparatus
IPC: G02B27/12
Filed: 1929-08-30
Abstract: 335,038. Cheshire, F. J. Aug. 30, 1929. Optical systems. - In two-colour kinematography the two colour component pictures are produced in the focal plane of the objective L by the use of a double image prism P. The prism is made of two thin prisms of calcite cemented together so that the crystallographic axis of one is at right angles to the crystallographic axis of the other, and both of these axes are at right angles to the optical axis of the objective L. The orientation of the pictures is determined by the rotation of the double image prism about the axis of the objective and the separation by the position of the prism along the axis of the objective. The prism is arranged between the lens and the focal plane F. Specification 204,636 is referred to.
Patent GB-1193965-A (GB)
Title: Torque Converter
Inventor: WILLIAMS FREDERIC CALLAND
IPC: H02K51/00
Filed: 1966-06-14
Abstract: 1,193,965. Electromagnetic couplings; transmitting mechanical power. NATIONAL RESEARCH DEVELOPMENT CORP. 13 Sept., 1967 [14 June, 1966], No. 26502/66. Headings H2A and H2H. An electromagnetic torque converter consists of an inductor alternator 3, 4 acting as a coupling between input and output shafts 1, 2, the slip-energy being fed through rectifiers to a commutator motor 5 which augments the torque applied to the output shaft 2 through a freewheel drive 8. The slot-numbers of the members 3 and 4 are equal to cause magnetic locking to give a direct drive without slip or torque increase at low load. In a modification (Fig. 2, not shown) the alternator output member is stationary, its rotor and the motor rotor being connected by epicylic gearing to the input shaft. The device may be used in vehicles, in which case the motor may be used for regenerative braking.
Patent GB-792591-A (GB)
Title: Improved releasable gripper and locking assembly for land and marine supporting columns
IPC: E02B17/08
Filed: 1954-09-14
Abstract: 792,591. Piles and the like, driving and withdrawing. DELONG CORPORATION. Sept. 14, 1954 [Sept. 29, 1953], No. 26595/54. Class 68(2) In plant. including a working platform, e.g., a barge, releasably connected to a column, caisson or the like, the releasable connection is effected by a ring and circumferentially spaced gripper slips or segments positioned between the column and the ring, the gripping pressure being produced by opposed wedging surfaces on the ring and on the slips. As shown, the ring 28 has an inner inclined face 29 which wedges on inclined ribs 30 of the slips or segments 31 which grip the pile or caisson 25, the slips and ring being detachably assembled by eye-bolts or the like 57, 61 which engage sloping rods 59 secured by plates 70 to the bottom flanges 55 of the slips. The ring 28 is adjustably secured to the deck 23 of a barge 22 by circumferentially spaced bolts 38 which have concave and convex washers 42, 49 to permit some degree of misalignment. Withdrawal of the bolts 38 is prevented by stop members 52 welded to the bolts. The nuts 50 are housed in welded pockets in the underside of the barge deck 23, whereby when the bolts 38 are turned by a tool engaging the heads 40, the nuts 50 are held against rotation and substantial axial movement. Square-sectioned lugs 91 are spaced around and are welded to the top surface of the ring 28, brackets 87 being releasably secured to the lugs by sliding them radially inwards so that a slot in the base 88 of each bracket embraces the lug 91 and a ring 99 is dropped over the lug to prevent withdrawal of the bracket. When the jacks 26 have been used to reposition the barge on the caisson 25, the bolts 28 are turned to force the ring 28 downwardy and thus to force the grippers 31 against the caisson 25. The weight of the barge is thus relieved from the jacks and taken by the assembly 28, 31. If desired, the jacks may be removed for use elsewhere, and if a permanent installation is to be made; the connection between the barge and caisson may be secured by welding. If it is desired, in a temporary structure, to make adjustments of the barge on the caisson, a reverse motion of the bolts 38 raises the ring 28 and d releases the gripping pressure, the upper movement of the ring being limited by stop member 73 bolted to the barge deck. When the lower jack of the set 26 rests on the brackets 87, the downward pressure forces the ring 28 downwards and produces a gripping action on the caisson. The jacks 26 comprise inflatable members 101 positioned within channel members 102, as described in Specification 792,592.