baber/WOPTO huggingface dataset:
Patent GB-437424-A (GB)
Title: Apparatus for the removal of supernatant liquid from solids in containers
IPC: E03F7/10
Filed: 1935-04-30
Abstract: 437,424. Gravity-separation apparatus. SHELVOKE & DREWRY, Ltd., and DREWRY, J. S., Icknield Way, Letchworth, Hertfordshire. April 30, 1935, No. 12924. [Class 111] A tank used in emptying street gullies &c. is provided with an apparatus for removing the water that has separated from the sludge. The apparatus comprises a flexible pipe 6 that can be lowered into the water by means of a lever 9 operated by an external handle 11. The pipe is connected to a valve-controlled outlet 5. In order to prevent the pipe from being lowered into the sludge it is provided at its end with a plate 7 or other device that offers sufficient resistance when in contact with the sludge to warn the operator that the pipe has reached the bottom of the water. A strainer 12 may be provided round the mouth of the pipe, and in order to start the water flowing through the pipe the interior of the tank may be placed under pressure. The sludge can be removed by opening the end wall 4 of the tank which is in the form of a door.
Patent GB-528262-A (GB)
Title: Portable gardening requisite holder
IPC: A45F3/44
Filed: 1939-05-02
Abstract: 528,262. Stand for gardening requisites. MACDONALD, M. S. May 2, 1939, No. 13046. [Class 52 (iii)] A stand comprises a spiked rod a provided with arms d upon which raffia &c. may be hung and a conical pan e for tools such as scissors, a draining aperture f being provided.
Patent GB-910925-A (GB)
Title: Production of esters
IPC: C07C29/10
Filed: 1959-04-17
Abstract: Acyclic esters are prepared by reacting an oxidising agent with a cyclic ether containing at least five carbon atoms and having the general formula <FORM:0910925/IV (b)/1> wherein R and R1 represent hydrogen atoms or C1-20 alkyl groups and n is an integer from 0 to 3, at least one R1 being a hydrogen atom and when n is 0 or 1, at least one R1 being an alkyl group, the reaction being effected under mild oxidation conditions whereby the cyclic ether is converted into the corresponding peroxide, reacting the peroxide with a reducing agent whereby ring fission and reduction are effected and separating from the product a resulting acyclic ester.  The oxidising agent may be air, oxygen, ozone-containing gas, hydrogen peroxide, chlorine water, sodium hypochlorite or selenium dioxide. Temperatures may range from -10 DEG C. to the boiling point of the reaction mixture.  Preferably, oxygen is used with an oxidation catalyst such as copper, cobalt, manganese or vanadium or a salt thereof.  Solvents and elevated pressures may be used.  The reducing agent may be ferrous sulphatic, sodium sulphite, sodium and an alcohol, sodium hydrosulphite, iron and HCl or hydrogen and a hydrogenation catalyst.  The oxidation and reduction may be effected in a single stage using an oxidising agent and a reducing agent together e.g., ferrous sulphate and hydrogen peroxide or oxygen.  In addition to the esters, minor amounts of alcohols, glycols, ketones, glycols and other oxygenated compounds are formed.  In Examples: (1) 2:5-dimethyl tetrahydrofuran is partially peroxidised with air, the peroxide is decomposed with aqueous ferrous sulphate and the product is fractionated to recover sec.-butyl acetate, and some 2-pentanol and 2:5-hexanedione; (2) a mixture of 2-methyl-5-ethyl tetrahydrofuran, 2-propyl-tetrahydrofuran, 2:4-epoxy heptane and 3:4-epoxy heptane is similarly reacted yielding sec-butyl propionate, amyl acetate, n-propyl butyrate and n-butyl propionate and in addition hepten-4-one.  Some dimerisation of the esters occurs such as of the sec-butyl acetate to a C8 diol diacetate.  Numerous other cyclic ether starting materials are listed including 2:3:4:5-tetramethyl tetrahydrofuran, 2-methyl-5-undecyl tetrahydrofuran, tetrahydropyran, trimethyl tetrahydropyran, 1:3-epoxy-2,4,4-trimethyl pentane and 1:2-epoxy decane.
Patent GB-817031-A (GB)
Title: Improvements in and relating to electric plug-and-socket connectors
Inventor: COLLIER JOHN COVELL
IPC: H01R13/453
Filed: 1955-05-06
Abstract: 817,031. Two-part couplings. ENGLISH ELECTRIC CO. Ltd. May 4, 1956 [May 6, 1955], No. 13245/55. Class 38 (1). In a plug-and-socket connector consisting of interfitting casings 14, 24 enclosing contactcarrying blocks 11, 13 and 21, 23, respectively, the casings are held together, with the contacts engaged, by balls 16 carried by casing 14 and projecting inwardly into a peripheral recess 24c on casing 24, the balls being maintained in the locking position by the engagement therewith of a tapered surface on a collar 17 slidable axially of casing 14 under the influence of a spring 19. Withdrawal of collar 17 against the spring releases balls 16 so that the connector parts may be separated by an axial pull on one of them which causes the balls to leave recess 24c. Each pair of contact-carrying blocks holds a resilient sealing member 12 or 22 under compression between them.
Patent GB-917147-A (GB)
Title: Coated fibreglass rope for prestressing and reinforcement of concrete
IPC: C03C25/1025
Filed: 1961-04-13
Abstract: 917,147. Concrete reinforcement. ROOT, H. F. June 9, 1961 [April 13, 1961], No. 13245/61. Class 20 (4). [Also in Group XXV] A process for the construction of fibreglass twisted and non-twisted rope for concrete reinforcement, comprising the saturation of heavy duty fibreglass yarns, cords or combined rovings with an epoxy resin compound composed of thirty parts flexible epoxy resin plus seventy parts rigid epoxy resin plus a diluent of alkyl glycidyl ether, plus an anhydride curing agent composed of methylbicyclo (2.2.1) heptone-2, 3-dicarboxylic anhydride isomers, then an application to the exterior rope surface having uncured epoxy resin compound thereon of a coating of medium grade rocky grit, followed by heat curing of the grit-coated resin-saturated rope.
Patent GB-367639-A (GB)
Title: Improvements in or relating to buffers for railway and like vehicles
IPC: B61G11/08
Filed: 1931-05-05
Abstract: 367,639. Railway &c. vehicle buffers. MITCHELL, J., 69, Kenilworth Court, Putney, and COSSEY, J. C. G., Calbourne, The Vale, Golders Green, both in London. May 5, 1931, No. 13250. [Class 103 (v).] In a spring buffer for railway &c. vehicles of the kind in which a hollow plunger g provided with a central spindle f slides within a casing a, the spindle is secured to the plunger by means of co-operating sets of projections and recesses interacting in the manner of a bayonet-joint, means being provided for locking the joint so formed. According to the construction shown in Figs. 1, 1a, and 1b, the tubular portion of the plunger g is formed with spaced integral inward projections g<3> and the spindle f is fitted loosely with a washer j having corresponding projections j<1> which, after being engaged behind the projections, are locked in this position by a buffing washer l having lugs l<1> that project into the spaces between the sets of projections g<3>, j<1>, the washer l being maintained in operative position by the subsequently inserted spring e. Rotation of the spindle is prevented by a projection f<2> on the head f<1> thereof coacting with internal ribs g<2> on the plunger. A second buffing washer k is interposed between the spring e and a rear spring c so that, in absorbing a buffing shock, the springs c, e first act together in series, and finally the strong spring c only is effective. A recoil spring o is arranged between the washer j and a small washer n at the rear of the spindle head f<1>. In this construction the spindle lies entirely within the buffer and, in action, the ends of the spindle approach but do not contact with the headstock and the rear of the plunger head. In a modification, Fig. 2, the projections g<3> are formed on a member g<4> separate from but riveted to the rear of the plunger head g<1>, and the projections f<1> are formed on a washer j that in part receives the non-rotatable head f<1> of the spindle, while the latter projects through the headstock and is fitted with a rear recoil spring. Various other modifications are described in which the plunger head may be separate from the tubular portion, or the projections g<3> may be integral with the rear of the plunger head or separate from but riveted to the plunger body, or the washer may serve as a buffing washer, or the projections j<1> may be formed on the spindle head and coact with other projections either on the plunger head or plunger body.
Patent GB-1256435-A (GB)
Title: Telephone dial mechanism
IPC: H04M1/31
Filed: 1969-03-13
Abstract: 1,256,435. Impulse generators. INTERNATIONAL STANDARD ELECTRIC CORP. 13 March, 1969 [14 March, 1968], No. 13391/69. Heading H4K. A dial mechanism includes a base-plate 1 having a centrally disposed bearing for a plastics shaft 2 which projects through the plate and carries at one end an impulse wheel 10 and a governor (not shown) and at the other end a finger plate 7 and main spring 4 which has one end engaging the base-plate and the other end engaging a device 5 comprising a hub with a plurality of radial arms 3, integral with the shaft, which locates one or more turns of the spring. One radial arm 3 engages the end of the spring and the others contact the spring alternately onthe front and rear sides. Two diametrically opposed arms 5 are provided with lugs which engage with parts of cover plate 6 which extend through holes 13 in finger plate 7.
Patent GB-840982-A (GB)
Title: Method and apparatus for reducing friction between members subjected to heavy loads
IPC: E04C5/08
Filed: 1957-04-26
Abstract: 840,982. Pre-stressed concrete. ATELIERS PARTIOT CEMENTATION. April 26, 1957 [May 5, 1956], No. 13419/57. Class 20(4) [Also in Group XXXIV] Apparatus for pre-stressing constructions 10 of concrete by means of a tensioned cable 11 comprises movable shoes 15, having grooves 16 in which the cable 11 is located, which are adapted to slide on fixed shoes 14 embedded in the concrete, lubricant being retained in recesses 18 in the bases of the shoes 15 by packing 20. The shoes are made of cast iron and the bearing surfaces are treated with sulphur. A plurality of recesses may be formed in the base of each shoe 15. The lubricant is preferably a mixture of bisulphide of molybdenum and thick grease with a small quantity of colloidal graphite. Conduits may be provided through which lubricant under pressure is supplied.
Patent GB-135007-A (GB)
IPC: B62K3/00
Abstract: 135,007. Manifold, A. C., and Pyne, E. G. Dec. 14,1918. Foot carriages or cycles.-A scooter is provided with a spring platform designed and constructed as an accessory or separate attachments. Fig. 1 shows a platform A supported by flat springs C attached to the scooter platform B by bolts or rivets passing through slots in the springs C. Spiral springs are used in another construction. Fig. 3 shows a platform supported by a pneumatic cushion or cushions F contained in a box G having a flange H at both ends to retain the platform in position, one or both flanges being detachable to admit of access to the cushions. Lugs on the box are used to secure it to the scooter.
Patent GB-705042-A (GB)
Title: Device for the generation of electrical pulses
IPC: H03K7/08
Filed: 1952-05-28
Abstract: 705,042. Pulse modulation circuits. TELEFONAKTIEBOLAGET L. M. ERICSSON. May 28, 1952 [June 12, 1951], No. 13606/52. Class 40 (5). [Also in Group XXXV] A circuit for generating electric pulses comprises two circuits each including in series connection, an A.C. voltage source 11, 21, a resistor 12, 22, a rectifier 13, 23, and an inductor 15, 25. The inductors have in parallel resistors 16, 26 and a common resistor 20 to the ends of which output terminals 17, 27 are connected. The voltages across the inductors 15, 25 are shown at 14, 24, Fig. 2, steps occurring at times t1, t2 displaced by an interval determined by the difference in values of resistors 21, 22. The voltages 14, 24 oppose because of the oppositely connected directions of rectifiers 13, 23. The voltage across resistor 20, being the sum of voltages 14, 24, takes the form of narrow pulses, Fig. 3. The pulse widths may be modulated by movement of the trailing edges by A.C., e.g. voice frequency signals, supplied through transformer 27, 28 and capacitor 18, across a resistor 37 in series with inductor 15, or by D.C., e.g. ringing tone, from a battery 31 through electromagnetically operated relay 30 and resistor 29, Fig. 4. By similar control of the circuit including inductor 25, the position of the pulse leading edge may be varied, while by feeding the modulating A.C. into the common connection from the windings 11, 21 to indicators 15, 25, the, pulse width is modulated about centre lines of fixed periodicity. The modulating A.C. may alternatively be applied to different points in the circuits.
Patent GB-1182667-A (GB)
Title: Improvements in vehicle bodies
Inventor: HEWLETT ROY
IPC: B60J5/14
Filed: 1967-03-23
Abstract: 1,182,667. Vehicle loading platform. HOTPOINT Ltd. 24 June, 1968 [23 March, 1967], No. 13632/67. Heading B8E. [Also in Division B7] A van body has a rear opening closable by a shutter 1, the mounting roller of which is mounted below the floor 2 and a power-operated loading platform 3 associated with the vehicle carries a retractable pivoted or sliding member 6 to engage the top rail 4 of the shutter to raise it by operation of the tail lift. The lifting platform may be pivoted on a transverse axis and may operate the shutter when the platform is in the vertical or horizontal position and may form part of the rear closure.
Patent GB-1418195-A (GB)
Title: Devices for securing adjustable shelves in articles of furniture
IPC: A47B57/48
Filed: 1973-03-21
Abstract: 1418195 Releasable shelving MACKENZIE KING PLASTICS Ltd 21 March 1974 [21 March 1973] 13689/73 Heading E2A [Also in Division A4] A device for securing an adjustable shelf in an article of furniture comprises a slidable bolt 11 adapted releasably to engage a socket H in the article of furniture and a slide member 10, the latter and the bolt having co-operating stops 15, 18 to prevent complete withdrawal of the bolt from the member; the arrangement is such that the bolt can be inserted into the slide member with the stops out of alignment and then turned in the member to bring the stops into alignment. When the assembly is secured to a shelf S by means of a serrated spigot 12 on the slide member, a flat 20 on the head 19 of the bolt abuts the shelf, as shown in Fig. 1, and prevents rotation but allows sliding movement of the bolt.
Patent GB-310670-A (GB)
Title: Process and machine for the manufacture of tubes made of paper or like material
IPC: B31C1/00
Filed: 1928-05-10
Abstract: 310,670. Jarrier, R. May 10, 1928. Pa per tubes.-A paper tube is formed by winding a band of paper on to a mandrel 8, which is mounted upon a shaft 5, and applying adhesive to the paper, by means of rollers 32, 33, along narrow longitudinal strips disposed some distance apart, preferably at the ends of the innermost and outermost convolutions. The rollers 32, 33 are mounted on shafts 34, 35 above a vessel 41 containing the adhesive and are moved vertically to contact with the paper by cams 40 through rollers 39 on the ends of the said shafts. The mandrel 8 preferably consists of a sheet 9 of aluminium, and a portion thereof forms a shutter 11 one edge of which is hinged to the stationary part of the mandrel while the other edge is supported by an eccentric 13, secured to an axle 14, and is adapted to grip the edge of the paper which is inserted in the slot formed between the shutter and the mandrel proper. The ends of the mandrel shaft 5 are mounted in a fixed bearing 7 and a movable bearing 6, and the shaft is driven from a pulley 16 through a clutch 17, the clutch being operated to stop the shaft after a predetermined number of revolutions thereof, by a cam mechanism 26, 27 which is itself driven from the said shaft through chain mechanism 29. The shaft 5 is also provided with chain mechanism 47, 53, adapted to actuate the cams 40 of the adhesive roller, and is braked upon the opening of the clutch mechanism by a spigot 18 on said clutch engaging a stationary socket member 19. In order to remove the completed tube, rollers 67 are brought into contact with the underside of the mandrel so as to support same and the movable bearing 6 is swung away from the mandrel shaft 5. When employed in making paper bags, the tube is flattened and formed with bellows portions at the sides by means of a hinged frame 87, which is brought into line with the axis of the mandrel 8 and upon which the tube is slid, mounted within a stationary frame 85, the frame 85 being provided with bars 90 adapted to engage slots in the cross-pieces 88 of the frame 87 so as to crimp the tube thereon.
Patent GB-1101893-A (GB)
Title: Improvements in and relating to chocks for use in climbing
IPC: A63B29/02
Filed: 1965-04-01
Abstract: 1,101,893. Anchoring ropes. H. T. H. PECK. 10 May, 1966 [1 April, 1965; 13 April, 1965], Nos. 13791/65 and 15595/65. Heading B8B. [Also in Division D1] A chock 1 for incorporation into a chock sling for supporting loaded ropes etc., intermediate their ends, comprises a solid wear resistant body shaped to be capable of being wedged between opposite walls of a crack etc., and a pair of holes formed right through the body to receive a length of rope or cable 7 formed into a loop. The loaded rope is supported by the loop. The loop is formed from knotted rope, or cable which is welded or soldered to itself at its ends. The chock body is cylindrical having diametrically opposed flats 2 between which the holes 3 extend. The latter are countersunk at their ends. The cylindrical surface of the body is knurled. In alternative embodiments the body is either spheroidal or conical (truncated). In other embodiments the chock body has either only one hole or more than two holes. The loop may be formed on the end of a single piece of rope or cable 7 which has an abutment at its other end to support it in a single hole 3 or the rope or cable 7 may be threaded back and forth through a plurality of holes 3 forming several loops.
Patent GB-672466-A (GB)
Title: Improved electro-motive traction system
IPC: B60L3/10
Filed: 1950-06-02
Abstract: 672,466. Control of D.C. motors; electromagnetic switches. GENERAL MOTORS CORPORATION. June 2, 1950. [June 18, 1949] No. 13809/50. Classes 38 (iii) and 38 (v). A wheel slip relay for an electric traction system has a centre tapped, single turn winding, each half of which is in series with one of two parallel connected groups of motors. Series motors M, M3, which may be connected in parallel by relays P1, P3, or in series by relay S13, are supplied from generator G via one half of the winding 15 on the relay W.S.R. Motors M2, M4, similarly controllable by relays P2, P4, S24, are supplied via the other half of winding 15 so that any unbalance between the 2 groups of motors will close the relay to shunt the winding of relay SFR thereby opening its contacts. This inserts resistor SDR in series with the shunt field SF of generator G to reduce the power output to the motors, and also deenergizes relay BFR and a governor overriding device OR. Relay BFR de-energizes the generator battery field BF, arid connects a discharge resistor across it, thereby further reducing the output of the generator. Simultaneously the release of device OR allows the hydraulically operated engine speed governor GOV to adjust the field regulator FR to maximum resistance. When the motors are again balanced and relay WSR opens, the generator shunt field SF and the battery field BF are re-excited, the latter being gradually increased. by the hydraulic governor.
Patent GB-969801-A (GB)
Title: An improved method and apparatus for cleaning the interior of a flexible pipe
Inventor: REUTT ZIGMUND
IPC: B08B9/043
Filed: 1962-04-11
Abstract: 969,801. Cleaning flexible pipes. BRISTOL SIDDELEY ENGINES Ltd. July 10, 1963 [April 11, 1962], No. 13921/62. Heading F2N. A method of cleaning the interior of a flexible pipe comprises the steps of mounting the pipe substantially vertically in guiding means, effecting relative vertical movement between the pipe and the guiding means downwards along the length of the pipe, continuously effecting vibration of the guiding means during the relative vertical movement and simultaneously passing a stream of cleansing fluid through the pipe from its upper end. The drawings show means for cleaning two pipes simultaneously. The pipes 16, 17 to be cleaned are suspended vertically in a structure comprising pillars 3, 4, 5 connecting top and bottom plates 1, 2. A lead screw 8 is aligned by bearings 6, 7 in the plates 1, 2 and driven by a motor 9 and by reason of its screw threaded engagement with a block 26 causes vertical movement of the latter. The tops of the pipes 16, 17 are held in tubular supports 13, 14 which are rotatable in bearings 11, 12 held in the top plate 1. The supports 13, 14 have pipe fittings 15. The tubular supports 13, 14 are rotatable through a pinion 24 on the lead screw 8 and speed reducing gear-wheels 22, 23. Water or other cleansing medium supplied to the interiors of the pipes 16, 17 through the fittings 15 passes down the pipes and leaves them through detachable flow-restricting outlet nozzles 18, 19 and falls into vertically adjustable drains 20, 21. The block 26, Fig. 2, carries saddle members 27, 28 against which the pipes 16, 17 are held by pairs of rollers 29 which are mounted on brackets 30, and the contact is resilient because the brackets 30 are carried on elastic straps 31, each of which is anchored at 32 to the block 26 and clamped at its other end, in an adjustable position, by a clamp 34. Plates are riveted to the strap and one of these is gripped between the face of a jaw 35 and an eccentric roller which is turned about its pivot by a clamping lever 39. The saddle members 27, 28 are supported on spindles 41, 42 extending from vibrators 43, 44, also carried on the block 26. The vibrators may be pneumatic, hydraulic or electromagnetic. One pipe only, or more than one, of the same or different diameter may be cleaned, and other modifications are mentioned, e.g. oscillation of the pipes instead of rotation.
Patent GB-945212-A (GB)
Title: Improvements in mechanical grabs
IPC: B66C1/44
Filed: 1962-04-11
Abstract: 945,212. Grippers for lifting stacks of articles. P. MOSKOPF. April 11, 1962, No. 13930/62. Heading B8H. A grab 1, 3, Fig. 1, for lifting newly cast concrete slabs, has auxiliary jaws 12, 13 which grip a support on which the slabs are resting and detach it therefrom. The main grab may be of any known type and the jaws 12, 13, Fig. 3, are operated by a handle 26 which rotates a plate 24 about a pivot 25 through a lever 33. This rotation opens or closes the jaws 12, 13, which are pivoted at 34, 35, by pushing or pulling on rods 23, 20, 21. As the load is raised the weight of a beam 11 carrying the strippers causes the stripping assembly to move down pins 9, 10 mounted on the grab and detach the support. In a second embodiment a stripper bar 43, Fig. 5, connected to the grab by parallel links 44, is operated by a ram 42. Fig. 7 shows a support 50 being stripped from slabs 45. The first described stripper may be used to carry the supports and discharge them at a predetermined position. Either or both strippers may be mounted on the same grab.
Patent GB-915772-A (GB)
Title: Electroluminescent device
IPC: H05B44/00
Filed: 1959-04-23
Abstract: 915,772. Transistor switching circuits. SYLVANIA ELECTRIC PRODUCTS Inc. April 23, 1959 [April 23, 1958], No. 13934/59. Class 40 (6). [Also in Groups XXXVIII and XL (a)] A transistor switch comprises the primary winding of a transformer 35 whose secondary winding is connected in parallel with the emitter-collector path of a transistor 40 which may be switched to vary the impedance presented by the primary winding.