baber/WOPTO huggingface dataset:
Patent GB-930988-A (GB)
Title: Improvements in and relating to electrophotographic reproduction materials
IPC: G03G5/06
Filed: 1958-07-03
Abstract: A coating composition for electrophotographic plates comprises a natural or synthetic resin and a photoconductive hydrazone of the formula R1R2C=N.NR3R4, in which the R symbols represent H, alkyl, aralkyl, cycloalkyl, acyl, aryl or heterocyclic aromatic groups, of which R1 and R2 may be joined to form a ring.  A sensitizing dyestuff or chlorophyll may be present, and in one example sulphosalicylic acid is added. Specified solvents are water, ethanol, glycol monomethyl ether, methyl ethyl ketone and toluene, depending on the nature of the resin of which many types are listed.  The support may be metal, (e.g. aluminium), glass or a resin.ALSO:The Specification describes photoconductive resinous compositions as in Specification 853,880 but with the photoconductor there specified replaced by a hydrazone of the formula R1R2C=N.NR3R4, in which the R symbols represent H, alkyl, aralkyl, cycloalkyl, acyl, aryl or heterocyclic aromatic groups, of which R1 and R2 may be joined to form a ring. Particularly suitable are those in which R3 is acyl and R4 is H, especially the benzoyl, substituted benzoyl and pyridoyl hydrazones of aromatic and heterocyclic aldehydes.  Many suitable compounds of the above formula are mentioned, alone or in admixture with one another. The sensitizing dyestuffs mentioned in Specification 853,880 may also be present, and in example sulphosalicylic acid is added.ALSO:Acyl - hydrazones of the formula R1R2C=N-NH-CO-R are prepared by heating carboxylic acid hydrazides with aldehydes, ketones or quinones in an organic solvent, e.g. ethanol; R is H, alkyl, aralkyl, aryl or a heterocyclic aromatic radical (or may be an alkylene group, giving a bis-compound), R1 is H, alkyl, or aryl, and R2 is aralkyl, aryl or a heterocyclic aromatic radical; R1 and R2 may be joined to form a ring.  In examples R is H, heptadecyl, benzyl, phenyl, tolyl, hydroxyphenyl, methoxyphenyl, aminophenyl, methylaminophenyl, methylphenylamino - phenyl, dimethylaminophenyl, diethylaminophenyl, benzylaminophenyl, diphenylyl, naphthyl, hydroxynaphthyl, aminonaphthyl and pyridyl, or RCO is an adipic acid residue; R1 is H, methyl and dimethylaminophenyl; R2 is phenyl, methoxyphenyl, dimethylaminophenyl, diethylaminophenyl, dibenzyl-aminophenyl, methylenedioxyphenyl, 2 - chloro-4-dimethylaminophenyl, nitrophenyl, naphthyl, anthracyl, anthraquinonyl, styryl, fluorenyl, furyl, pyridyl, quinolyl, methylcarbazolyl and ethylcarbazolyl.  R1R2CO may also be phenanthraquinone.
Patent GB-571962-A (GB)
Title: Improvements relating to a wire flattening mill
IPC: C21D9/56
Filed: 1943-12-20
Abstract: 571, 9 62. Wire-heating furnaces. SCOTT & CO., Ltd., A. C., and ASHTON, G. W. Dec. 20, 1943, No. 21349. [Class 51 (ii)] [Also in Groups II and XXII] Apparatus for the production of annealed, flattened wire comprises wire-flattening rolls a from which flattened wire b passes through a heated tube furnace c, preferably heated by an electric resistance wire, to a cooling tube d and into which an inert gas may be admitted by tube g located near the exit end of furnace c, and finally through the cooling tube d to a winding-on spool. The cooling tube d and the furnace c may be arranged one below the other, the wire passing through them in counterdirection.
Patent GB-896557-A (GB)
Title: Improvements in and relating to clothes lines
IPC: D06F53/02
Filed: 1959-06-25
Abstract: 896,557. Clothes lines. ROBERTSON, K. W. Sept. 14, 1959 [June 24, 1959], No. 21592/59. Class 52(5) A clothes line comprises two lengths of cord 1, 2 or the like adapted to be twisted together to form a peg-less clothes line and a coil spring 3 through which the line passes attached at one end to the line and at the other end to a point on the line or to an end ring 4 spaced from the first point of attachment by a distance corresponding to the fully extended length of the spring so that when the line is connected between two posts or other attachment means suitably spaced apart, the spring 3 pre-tensions the line.
Patent GB-355462-A (GB)
Title: Improvements in combined road rollers and tar sprayers
IPC: E01C19/17
Filed: 1930-07-17
Abstract: 355,462. Spraying tar &c. on roads. SHIELDS & RAMSAY, Ltd. and ROBERTSON, R. B., 104, West George Street, Glasgow. July 17, 1930, No. 21603. [Class 107.] Relates to a combined tar sprayer and road roller comprising a tank a for liquid tar, a tar distributer g, a pump b for supplying tar to the distributer, a clutch d controlling the pump, and a steam supply pipe j by which steam is supplied from the boiler to maintain the perforations of the distributer clear. According to the invention, the operating means for the-clutch d and a valve k controlling the passage of steam through the steam supply pipe are both situated so as to be readily accessible from the driver's position on the roller so that in addition to controlling the roller the driver can control the operation of the pump and the supply of steam to the distributer. The clutch d is controlled by a forked arm h, Fig. 3, pivoted to a bracket i<1> and connected by a link i<2> to a bell-crank lever i<3> which is operated through a rod i<4> by a handle i<5> located near the valve k. A check valve p is arranged in the steam supply pipe j. A cock l in the tar supply line f is operated by a bell-crank lever o through the medium of a rod n when it is desired to fill the tank a. Additional controlling means for the pump and steam supply may be arranged at the side of the tar tank.
Patent GB-1525454-A (GB)
Title: Process for purifying crude dibenzylidene sorbitol
IPC: C07D493/04
Filed: 1977-05-23
Abstract: 1525454 Purification of dibenzylidene sorbitol F C CHEMICAL IND CO and C ITOH & CO Ltd 23 May 1977 [1 July 1976] 21618/77 Heading C2C One part by weight crude dibenzylidene sorbitol, which has been obtained by reacting 1 mole d-sorbitol with 2 moles benzaldehyde and contains as impurities not more than 7% by weight monobenzylide sorbitol, tribenzylidene sorbitol or both, is mixed with 5-15 parts by weight of at least one C 1-6  aliphatic alcohol at a temperature between 50 C. and the boiling point of the alcohol, thereby dissolving the impurities in the alcohol, and separating and recovering, e.g. by filtration purified dibenzylidene sorbitol from the resultant solution.
Patent GB-121959-A (GB)
Title: Improvements in Tell-tale Compasses.
Inventor: ANDRADE-LALAMA RAFAEL
IPC: G01C17/26
Filed: 1918-12-24
Abstract: 121,959. Lalama, R. Andrade-. Dec. 27, 1917, [Convention date]. Mariners' compasses are provided with means for giving an audible or other signal if the ship deviates from a predetermined course The compass card 17 is provided with upstanding contacts 16, that are connected by a flexible wire 19 supported by an arm 21 to one pole of an electric battery. The other pole is connected through the compass case to contacts 12 mounted on frames 11 fixed to the casing of the compass, the distance between these contacts being adjustable by means of screws 11, and an alarm device 25 being included in the circuit at the desired point. The ship having 0 been set on the required course, the compass bowl is turned until the contacts 16 lie between the contacts 12, and is then clamped by means of the nut 10. If the ship deviate more than a small amount from the course, the contact 16 is brought against one of the contacts 12 and the alarm circuit completed.
Patent GB-396227-A (GB)
Title: Improvements in or relating to beer or like engines or pumps
IPC: B67D1/10
Filed: 1932-08-02
Abstract: 396,227. Beer engines. LOFTUS, Ltd., W. R. and COOPER, S. W., 18, Tottenham Court Road, London. Aug. 2, 1932, No. 21681. [Class 102 (i).] A beer engine or like pump comprises a cylinder 1, the ends of which are reinforced by rings 2, over which fit flanges on the detachable end members. The lower end member 4, provided with a non-return valve, has a threaded extension 6 for connection with the supply pipe, part of this extension being formed as a square boss 8. The upper end member 3 carries a stuffing-box and gland for the pistonrod 15 and has a nozzle 16 for connection with the delivery pipe ; the member 3 is also formed with a square boss 18. The pump is mounted in a bracket having lugs 28 for securing it, and having flanges 10, 20 provided with angular slots 9, 19 to receive the bosses 8, 18 on the end-members. Screws 39 mounted in one or both of the flanges clamp the cylinder and end-members together in the bracket. The latter is formed with a semi-circular seat 30 ior the cylinder and has a hinged strap 31 for securing the cylinder in position. The piston rod 15 is formed with an enlargement 22 internally threaded at 24 to receive a reduced portion 25 of the piston 21 which has a lift valve 23 and an air groove 26.
Patent GB-943492-A (GB)
Title: Free piston engine
IPC: F16J1/08
Filed: 1960-06-21
Abstract: 943,492. Pistons. STEWART-WARNER CORPORATION. June 21, 1960 [June 22, 1959], No. 21748/60. Heading F2T. [Also in Division F1] A free piston engine comprises a cylinder with a bore therein and a piston freely reciprocable and independently freely rotatable in the bore and means for rotating the piston. As shown, an internalcombustion operated free piston engine has opposed pistons 16 and recesses 52 are formed in the pistons. The pistons are rotated by compressed gas (e.g. air) supplied to nozzles 58. The compressed air for the nozzles 58 may be derived directly or indirectly from the chambers 20. Rapid continuous rotation of the pistons is ensured. The gas forms films between the pistons and the cylinder surface which will in effect lubricate this surface. It is not necessary to have means for providing oil lubrication of the surface. The engine may be operated at higher temperatures than would be permissible if oil were employed. The space between each end wall 46 and the corresponding ports 38 and 40 constitutes a bounce chamber 48. The pistons may be made of lightweight material and may be made hollow in construction. Suitable ceramics or lightweight alloys may be employed in the pistons. The compression and combustion chambers could be interchanged (see also Division F1).
Patent GB-1189524-A (GB)
Title: Full Bobbin Sensing and Severing Device
IPC: F16L3/01
Filed: 1967-03-09
Abstract: 1,189,524. Yarn-severing device. LEESONA CORP. 9 March, 1967 [14 March, 1966], No. 21757/68. Divided out of 1,189,521. Heading DID. In a ring-spinning frame having a traversed rail, when the package attains a predetermined size, the incoming yarn is severed by a device which is responsive to means which directly detects the diameter of the package. A C-shaped traveller rotatably mounted on a rod 502 is formed at one end with a cutter 510 and at the other with a feeler 504 which is pressed against the package. When the package attains a given size, the feeler rocks the lever to bring the cutter into the path of the yarn coming onto the package. The rod 502 is common to a number of positions and is carried by arms 514 each swingable on a bracket 517 bolted to the ring-rail. To prevent the yarn being cut except when the package is fully built, the arm is adapted to swing away from the package under its weight or under bias, and remains there until a cam situated at the point reached by the rail at the end of the traverse, engages a tab 514 and swings the arm so that the feeler is moved towards the package. When the yarn is severed, the bobbin can continue to rotate while the yarn supplied to it is taken up in an aspirator until the position can be serviced by the apparatus of Specification 1,189,521.
Patent GB-982722-A (GB)
Title: Adding machine
Inventor: PLAUT MICHAEL
IPC: G06C7/08
Filed: 1962-01-04
Abstract: 982, 722. Mechanical calculating apparatus. NATIONAL RESEARCH DEVELOPMENT CORPORATION. Jan.4, 1962, No.21822/64. Divided out of 982, 721. Drawings to Specification. Heading G4B. The description is identical with that of Specification 982, 721, but the claims are directed towards the zero-printing mechanism.
Patent GB-1315075-A (GB)
Title: Concrete and like foundation and retaining units
IPC: E02D5/66
Filed: 1971-04-19
Abstract: 1315075 Concrete piles, subterranean barrier walls RHONE-POULENC-TEXTILE 19 April 1971 [16 Feb 1970] 21852/71 Heading E1H In a process for forming in situ in soft or sunken ground a concrete or like castable material pile or a retaining or subterranean barrier wall, means are provided for limiting the quantity of concrete or like material used. When forming a cylindrical pile a metal tube 2 is driven into the ground 1, the space within it excavated and a permeable flexible and deformable fibrous bag 3 inserted within the tube. Reinforcement 5 is then added and a concrete or like mix 4 cast into the bag as the tube 1 is withdrawn, the fibres of the bag being partially set in the mix. Non-cylindrical piles and walls may likewise be made using metal sheets and deformable bags of appropriate shape. Preferably the elongation characteristics of the fibres are such that the volume of concrete or like material used is not more than three times the volume of the excavated space. Details of preferred fibrous materials are given. The pile or wall forming material may comprise concrete, gas concrete, concrete filled with polyvinyl acetate emulsions mortars, aggregates bonded by polyester or other synthetic resins, and rigid polystyrene or polyurethane foams.
Patent GB-380558-A (GB)
Title: Improvements in or relating to railway signalling apparatus
IPC: B61L19/14
Filed: 1931-07-31
Abstract: 380,558. Railway signalling apparatus. SIEMENS & GENERAL ELECTRIC RAILWAY SIGNAL CO., Ltd. and EDMONDS, C. H. W., Central House, Kingsway, London. July 31, 1931. No. 21913. [Class 105.] A route lever can only set the required points and clear a signal when the relevant points levers are in their mid-position. Under normal conditions the points levers may be moved forward or backward from the midposition to set the points to normal or reverse and when the points are fully over an indication current releases a lock on the points lever which is then returned to its mid-position by a spring action. To set a route to the branch line 1 a route lever RL1 is operated to supply current (a) over line 21 and contact WR1 to motor 6 which puts the points P<1> to reverse, (b) over line 22 and contact MN2 to motor 7 which puts the points P<2> to normal, and (c) over line 23 and contact MN3 to motor 8 which puts the points P<3> to normal. The relevant points levers must be in their midpositions as otherwise the contacts MN1, MR1, .. are open. Further, the route levers may be locked by a dropped armature of a magnet which is only energized if all the relevant points levers are in their mid-position. The signal S<1> is cleared when the points have been set and the indication currents have actuated appropriate relays. The usual interlocking is provided to prevent conflicting levers being operated. The points levers are each engaged by a lock magnet 49, Fig. 5, which is controlled by contacts 52 of the route levers associated therewith, by contacts 61, 62, 63 of its own points lever which are closed respectively when the lever is in its mid-position, the operating-toreverse position and the operating-to-normal position, and by an indication relay armature 45. Accordingly when a route lever is operated a contact 52 opens and the lock magnet 49 is de-energized to lock the points lever in the mid-position. Normally, however, the points lever may be moved to close a contact such as N1 or R1, Fig. 1, and thereby energize the points motor ; the magnet 49, Fig. 5, is then de-energized by the opening of contact 61 and locks the points lever until the points have moved over and the points indication relay armature 45 has closed the appropriate contact 46 or 47 to energize the lock magnet over the contact 63 or 62 and so to release the points lever which is spring-returned to the midposition. Failure of the points to move over due to any obstruction would prevent such release and to meet such a contingency a pushbutton 41 allows the points lever to be released whereupon the lever is operated to the other position to restore the points to their first setting and is released bv the indication current as before. Specification 125,028, [Class 105, Railway signals &c.], is referred to.
Patent GB-1003739-A (GB)
Title: Oil burner nozzle
IPC: F23D11/10
Filed: 1964-05-27
Abstract: 1,003,739. Liquid fuel burners. MASTER CONSOLIDATED Inc. May 27, 1964 [June 4, 1963], No. 21921/64. Heading F4T. An oil burner nozzle has a body part 10 accommodating a fuel tube 10 which terminates adjacent the discharge orifice 13, air for combustion being drawn through the annular space between the two parts from a pair of tangentially drilled orifices 26 which induce a vortex motion to the air.
Patent GB-354979-A (GB)
Title: Improvements relating to adjustable metal shelving
IPC: A47B57/50
Filed: 1930-07-19
Abstract: 354,979. Shelving. GIBBONS, F. J. J., St. Johns Works, Church Lane, Wolverhampton. July 21, 1930, No. 21947. [Class 52 (i).] A sheet-metal hook c, for supporting a shelf d, has a flat-sided headed projection g to engage a keyhole slot b in a sheet metal upright a. In the construction shown the projection is pressed from the material of the hook. In a modification the projection is riveted to the hook.
Patent GB-1061574-A (GB)
Title: Laminated fabric
IPC: D04H1/66
Filed: 1964-05-28
Abstract: 1,061,574. Laminates and laminating. KIMBERLY-CLARK CORPORATION. May 28. 1964 [June 7, 1963]. No. 22130/64. Heading B5N. A laminate comprises an overlying web of highly drafted, substantially aligned fibres 48 bonded to a base web 11 of creped cellulose wadding by a layer of thermoplastic adhesive 15 disposed in a grid-like pattern between the webs, so as to partially penetrate the wadding and bond and hold in alignment the fibres of the overlying web. Preferably the adhesive covers between 15-25% of the total web area, and is a plastisol adhesive, preferably a vinyl resin plasticized by organic phthalates, sebacates, adipates or phosphates. Preferably the cellulose wadding has an open formation and contains a wet strength resin such as a melamine formaldehyde, urea formaldehyde, or polyalkylene polyamine. The fibres may be cotton, or synthetic fibres in the denier range of 0À5 to 3 obtained from such materials as viscose or acetate rayon, nylon, polyesters or acrylonitrile, and preferably have a length of ¢-3 inches. By " highly drafted web " is meant webs in which about 80-95% of the fibres are aligned substantially in the machine direction. In making the laminate, a creped wadding sheet 11 is fed into a nip formed between a back-up roll 14 and a printing roll 12 which is provided with an intaglio printing pattern and which is continuous coated with a low viscosity thermoplastic plastisol adhesive 18 from a dip pan 19. The coated sheet 11 then passes round a roll 24 positioned closely adjacent to a drawframe 26 which applies under continuous tension a web 28a of substantially aligned synthetic fibres. The two-ply laminated material is then drawn over a guide roll 30 and around a heated drum 32 which activates the adhesive, and a calender roll 34 on which presses the fibre layer into the adhesive. Auxiliary heating means including additional heated rolls, hot air streams or radiant heaters may be provided. The laminated product is then drawn on to a take-up spindle 42. The material is suitable for use as coverings for absorbent sanitary products.
Patent GB-204472-A (GB)
Title: A continuous pressure filter
IPC: B01D35/16
Filed: 1922-08-16
Abstract: 204,472. Hurrell, G. C. Aug. 16, 1922. Filters having sheet filtering-materials; extrusion presses. - A continuous inward-flow filter suitable for high pressures comprises an inner filter unit 3, Figs. 1, 3, concentric with an outer shell 1. When sludge is admitted under pressure by the port 5, the filtrate passes through the unit 3, and the solids are continuously discharged through an adjustable opening, which may comprise ports 7 controlled by a sleeve 6, Fig. 1, or a conical plug 6<A> adapted to be raised into contact with the shell 1 or to be lowered against a fixed stop by toggle-links 8. To enable filters of greater length to be used, the unit 3 may be slightly tapered, and a worm 12, Fig. 3, may be provided to prevent caking of the solids, which latter may be washed and dried by admitting water and compressed air from jackets 14, 16 respectively either through perforations in the casing or through a pervious ring 18. When washing and drying of the solids is effected, partitions 20 may be provided in the tube 3, so that the filtrate from each stage of the process may be collected separately in the chambers thus formed and be run off by pipes 11, 11<A>, 11<B>. Specification 174,116 is referred to.
Patent GB-698530-A (GB)
Title: Improvements in or relating to potentiometers or resistor elements
Inventor: BELL ERNEST ALFRED DE
IPC: H01C10/32
Filed: 1951-09-25
Abstract: 698,530. Variable-contact resistors. PLESSEY CO., Ltd. July 28, 1952 [Sept. ,25, 1951], No. 22377/61. Class 37. A variable resistor, Fig. 1, comprising a resistance track 1 and a metallic collector ring 2 and terminal tags 3-5 embedded in a moulded base 6 is characterised in that a carbon or graphite slider contacts the metallic collector ring 2. In Fig. 1 an arc-shaped carbon brush 19 is pressed against the metallic ring 2 by a brush holder 14 having prongs 15 with dimples 16 engaging in brush recesses 20. The brush holder 14 also presses a carbon brush 17 against the resistance track 1 with 17 slotted in a bent projection part 18 of 15 which latter is hingedly mounted in an overlying insulating disc 11 as by shoulders 22 engaging in coinciding slot 21. In a first modification, Fig. 3, a ring-shaped brush holder 27 has a perforated ear 28 to receive a tapered carbon slug brush 29. In a second modification, Fig. 4, the brush holder 30 is designed to have also a top bent projection 32 to receive a collector ring brush 34 similar to the resistance track brush 33.
Patent GB-201058-A (GB)
Title: Improvements in or relating to the manufacture of hollow rubber articles, particularly tennis balls
IPC: B29D22/04
Filed: 1922-08-17
Abstract: 201,058. Jackson, W. J. Mellersh-, (Revere Rubber Co.). Aug. 17, 1922. Balls.-A method of making hollow rubber articles, such as tennis balls, consists in applying to a vulcanized rubber centre which has been inflated to its finished size covering sections of fabric, the fabric being vulcanized to the action of heat and pressure. According to one way of carrying out the method, the centre is formed of a rubber capsule, Fig. 2, into which is injected one-sixth of a fluid ounce of a porefilling material and which is vulcanized and then inflated to its finished size in a gauge 9, Fig. 4. The centre and the fabric section, which are of the form shown in Fig. 6, are coated with successive layers of gum and vulcanizable cement and are vulcanized together in a mould. The gum and cement may be applied to the edges of the fabric section, and the current may contain an accelerator, such as litharge. In a modification, the article may be reinforced by a layer of stockinette inserted between the centre and the cover.
Patent GB-649670-A (GB)
Title: An improved hair winding appliance
IPC: A45D6/04
Filed: 1948-08-26
Abstract: 649,670. Hair-waving appliances. FARRELL, J., and MANN, P. Aug. 26, 1948, Nos. 22489 and 27355. [Class 131] A hair-winding appliance comprises a rotatable shaft driven by resilient means and rotating a curler in a direction to wind a tress of hair thereon. As shown a shaft 18, having a collar 19 to grip one end of a curler, is rotated by a gear chain mounted intermediate a manually operable latching pawl 23, pivotally mounted on a lug 24 pressed out of the casing 1, and a spiral spring 7, tensioned by rotation of the spindle 6. The main driving gear wheel 10 is disconnected from the shaft 18 during tensioning of the spring 7 by movement of the lower end of the spindle 12 along a slot against the action of the spring 21, so that the gear wheel 13 is disengaged from the pinion 14. In a modification the spring motor is replaced by elastic bands connected to the shaft and to the winding member.