baber/WOPTO huggingface dataset:
Patent GB-688344-A (GB)
Title: Esters of tricarboxylic acids and resinous compositions including such esters
IPC: C08K5/11
Filed: 1951-02-19
Abstract: Polyvinyl halide polymers and co-polymers are plasticized with new triesters of monohydric alcohols with saturated aliphatic tricarboxylic acids containing an open chain of 4-8 carbon atoms, the 1st, 2nd and 4th being directly attached to the carboxylic groups, singly, mixed, or mixed with other plasticizers, and compounded by customary methods.  In examples, plasticized compositions containing polyvinyl chloride and tris - (2 - ethylhexyl)-1 : 2 : 4-butane tricarboxylate (1 : 2 parts), trinonyl - 1 : 2 : 4 - butane - tricarboxylate (2 : 1 parts), and tricyclohexyl 1 : 2 : 4-butane-tricarboxylate (2 : 1), and a copolymer of vinyl chloride and vinyl acetate, containing triheptyl 2 - methylbutane 1 : 2 : 4 - tricarboxylate, each with some conventional compounding agent are described.  Numerous similar esters are specified, in which the above acids or halogen substitution products thereof are esterified with monohydric alcohols of 5 or more C atoms including monoetherified and monoesterified diols, and halogenated alcohols.ALSO:The invention comprises triesters of 1 : 2 : 4-tricarboxylic acids of saturated aliphatic hydrocarbons of 4 and more carbon atoms with monohydric alcohols of 5 and more C atoms, obtainable by usual methods and valuable as plasticizers for vinyl halide polymers.  Both the acids and alcohols used may be substituted by halogen.  The acids are obtainable by oxidation of substituted 4-cyclohexenes, such as the 1-carboxy, 1-aldehydo- or 1-keto-4-cyclohexene, obtainable by condensing butadiene with a -b -unsaturated aldehydes or acids.  In examples, esters of 1 : 2 : 4-butane-tricarboxylic acid and its 2-methyl-, and 3-chloro-derivatives with 2-ethylhexanol, hexanol, cyclohexanol, heptyl, nonyl, and decyl alcohols, and a mixture of C5-C8 alcohols are described.  Other alcohols and acids from which such esters may be derived are referred to, including halogenated alcohols and monoetherified and mono-esterified diols and bromo-tricarboxylic acids.  In further examples, plasticized compositions containing polyvinyl chloride, and polyvinyl chloride/acetate copolymers with some of the above esters, compare favourably in physical properties with compositions containing the conventional plasticizers.
Patent GB-349995-A (GB)
Title: Improvements in, or relating to, apparatus for crushing, granulating, or grinding minerals, rock, slags, and other materials
IPC: B02C4/30
Filed: 1930-02-06
Abstract: 349,995. Ring mills for crushing rock &c. WAKE, J. F., 123, Victoria Road, Darlington. Feb. 6, 1930, No. 3980. [Class 59.] Rock, slag, &c., is crushed between a series of unrestrained interfitting rings of different diameters which are positively driven. The rings H<1>, H<2> rest on a horizontal screen B and are enclosed in an outer ring F adapted to move radially under the constraint of springs G which abut against the casing E. An eccentric. D is fixed to a vertical shaft C driven by bevel-gearing J and imparts radial motion to the rings. Material falls between the rings when they open under the hopper N and is crushed when the rings approach one another upon rotation of the eccentric. The rings may be toothed or serrated and may be tapered or straight. The Q<1> .. Q<2> rings, Fig. 13, pass between and are driven by rollers R<1>, R<2> which may be under the constraint of springs T<1>. Specification 135,322, [Class 59, Grinding, crushing, &c.], is referred to.
Patent GB-534726-A (GB)
Title: Improvements in or relating to electric signalling systems
IPC: H02J13/00
Filed: 1939-02-07
Abstract: 534,726. Electric control systems. STANDARD TELEPHONES & CABLES, Ltd., TERRY, R. St. G., and BOWSHER, E. A. H. Feb. 7, 1939, No. 4012. [Class 40(i)] In a system for signalling by uni-directional current over an alternating current power supply network, provision is made for ensuring positive operation of the signal responsive devices for two-way signalling over the network and for relaying signals over linked networks of different types. Fig. 1 shows a system of linked network feeders, the low-voltage feedersLTF at the substation being supplied by intermediate feeders IDF fed by high-tension lines HT and adapted to be connected in parallel by a switch LK. Control of the loads LD1, LD2, is effected by polarized relays PN1, PN2 which are responsive to positive or negative impulses transmitted from the station MS by a key K under the control of relays A, B which connect battery in one or other direction between the neutral of the phase leads IDF and earth. At the substation SUB1 a polarized relay E, connected between earth and an artificial central point provided by the chokes CH controls relays A1, B1 which connect battery in a similar manner to the low tension feeders LTF to relay the impulses to the responsive devices PN1, PN2. In order to prevent short-circuiting of the signals to the signal responsive devices in the neighbourhood of the station SUB2 by the transformer windings at that station, a cell PC is provided which, polarizes in response to D.C. current and impedes the flow of the signal while still offering no appreciable A.C. impedance ; in an alternative arrangement a signal current battery may be connected to the feeders LTF at substation SUB2 in parallel with the battery at station SUB 1 in response to a signal. In a modification, transmitting and receiving relays are provided at each station to facilitate twoway signalling. In a further modification, provision is made for relaying signals over a three-phase system which is Scott-connected to a two-phase system supplying single phase loads. On the three-phase side the system is the same as that shown in Fig. 1, but on the two-phase system the transmitting and receiving devices are connected between the neutral wire and earth while on the single phase system the transmitting equipment is interposed in the earth connection and the receiving relay is connected between the unearthed conductor and earth. Instead of using a battery as the source of D.C. signals, a rectifier resistance combination as described in Specification 472,431 may be employed.
Patent GB-746980-A (GB)
Title: Improvements in or relating to decanting apparatus
Inventor: GARIEL PAUL
IPC: E21D11/18
Filed: 1954-02-11
Abstract: 746,980. Gravity separation of liquids &c. ETABLISSEMENTS NEYRPIC. Feb. 11, 1954, No. 4106/54. Class 46. In decanting apparatus in which the inner space is divided into compartments of small cross-section, an element is provided in each compartment where the deposited material accumulates and extends longitudinally thereof, either at the liquid intake or outlet, and provides a flow space for the deposited material separated from the zone of flow of the liquid. The lower (inlet) end of a decanting tube 1 is provided with a baffle plate or tongue 7 extending across its lower part to form a passage 9 for deposited material separated from the liquid inlet 2. The baffle may be provided as a liquid inlet tube 20 within the outer tube 11, several of which 11, 12, 13 are arranged adjacent to one another, the inner tubes 20 being mounted on a dome-shaped plate 15 constituting a collecting chamber for the material. A tongue, shaped as an inverted gutter with apertured edges, may extend beyond the tube 20.
Patent GB-1517846-A (GB)
Title: Thyratron arrangements
IPC: H01J17/56
Filed: 1976-02-03
Abstract: 1517846 Gas - filled thermionic valves ENGLISH ELECTRIC VALVE CO Ltd 28 Jan 1977 [ 3 Feb 1976] 04113/76 Heading H1D In a double-ended thyratron, at each end the final grid G 2 , G 2 <SP>1</SP> which borders the high voltage gap is connected to act as a screen electrode and, at one or both ends, triggering pulses, are applied to a grid-e.g. G 1  or G 1 <SP>1</SP>-intermediate the cathode of the final grid, whereby the voltage hold-off and the dark current are improved. The final grids may, as shown, be connected to their respective cathodes, and the intermediate grids to both sources of trigger pulses and of successive biasing voltages: a protective pias prior to triggering, which is positive with respect to the final grid and the cathode and provides a protective plasma sheath for the latter; a positive hold-on bias after triggering, which ensures that the thyratron will conduct in one direction but not the other if protective bias is applied to the opposing intermediate grid; and a turn-off bias equal to the potential of the cathode and the final grid. The tube may include an additional intermediate grid at each end, between the first intermediate grid and its cathode (Fig. 3, not shown), the protective bias being continuously applied to the additional grid to protect it from high energy ions throughout operation of the tube. Simultaneous application of triggering pulses to both the other intermediate grids allows A.C. working, while application of a triggering pulse to only one of them permits use as a switch of selectable polarity.
Patent GB-557449-A (GB)
Title: Improvements in lawn mowers
IPC: A01D34/42
Filed: 1942-03-30
Abstract: 557,449. Lawn-mowers. CLEMSON BROS., Inc. March 30, 1942, No. 4239. Convention date, March 31, 1941. [Class 6 (ii)] The cutter-reel and bed plate 16 are mounted in side plates 4 enclosed by the ground wheels 1 and spaced by rods 14. The cutter unit is adjustable, for varying closeness of cut, relative to the arm 6, which is pivoted on the stud 3 and carries the ground roller 8 and handle 12, by means of an eccentric 28 mounted on a pivot 26 in the side plate 4 and located in a slot in the arm 6. The cutter-reel axis is positioned so that throughout its range of adjustment it moves more vertically than horizontally. The point of attachment of the handle 12 to the ground roller frame is near to or below the axis of the ground wheels; thus the line of force applied to the handle passes close to the line of contact of the ground wheels with the ground. The ground roller 8 consists of semi-cylindrical wooden sections enclosed in vulcanized rubber and mounted on ball-bearings around the stationary spindle 47. Specification 517,726 is referred to.
Patent GB-1492871-A (GB)
Title: Support for a welding head carriage
IPC: B23K37/02
Filed: 1975-01-31
Abstract: 1492871 Welding by fusion BSL BIGNIER SCHMID-LAURENT and TECHNIGAZ 31 Jan 1975 [31 Jan 1974] 4355/75 Heading B3R A support, for a welding carriage for the seam welding (e.g. in the construction of liquefied gas tanks) of overlapped "waffle" plates (i.e. metal plates comprising plane areas framed by corrugations running in mutually perpendicular directions and intersecting and forming abutments at the ends of the plane-area-bounding corrugations), is provided with means for removably securing it to one of said plane areas, location means for engaging a plurality of said abutments to locate the support with respect to the corrugations surrounding said plane area, gauge means for engaging the tops of a plurality of said corrugations to determine the height of the support with respect to the plane area, and mounting means for mounting a carriage guide bar. As shown, the support comprises a plate 6 secured by lugs 8 thereof to a frame 7. The means removably securing the support to the waffle plate may comprise magnetic means, or, as shown, a suction cup bounded by a seal 11 (Fig. 1, not shown) and evacuable through a tube 13. Locating members 9 secured to the lugs 8 are engageable with at least two waffle plate abutments 17, 17<SP>1</SP>. The support height gauge means may comprise unadjustable stops fixed to (e.g. deformed from) the lugs, interchangeable stops or as shown, screw-adjustable and nut-lockable stops 10. A guide bar 2 for a welding carriage 3 is secured to the support and rendered parallel to a desired welding seam by eccentric fasteners (20, Figs. 6, 7, not shown) rotatable in pairs of holes (18) in the frame 7. The guide bar also carries, in alignment with the eccentric fastener axes, gauge members 21 determining the guide bars/welding seam distance. The welding carriage mounts a welding head 4 which is adjustable both axially thereof and in a direction parallel to the plane of the waffle plate and perpendicular to the welding seam, as by micrometer screws, 28, 29.
Patent GB-607833-A (GB)
Title: Improvements in or relating to conveyors
IPC: B65G17/12
Filed: 1946-02-12
Abstract: 607,833. Endless-chain conveyers. ANDREWS, S. W., WALKER, G. E., and MITCHELL, S. S. C. Feb. 12, 1946, No. 4402. [Class 78 (i)] Articles are fed by an endless conveyer to a pivotally mounted tray which tilts on receiving an article from the conveyer so as to move a stop into engagement with a toothed wheel secured on a spindle carrying sprocket-wheels around which the conveyer passes, whereby movement of the conveyer is arrested until the article is removed from the tray. In the embodiment shown, the conveyer is supported on a frame consisting of side members 1, 2 connected by cross-members 3, 4, 5 and comprises endless chains 26, 27 passing round sprockets 14, 17 and 15, 18, respectively, the sprockets 14, 15 being mounted on shafts 13 eccentrically mounted on plates 10 which are rotatably mounted in lugs 8, 9, and the sprockets 17, 18 being secured to a spindle 16. Articles 29 are supported on blocks 28 secured to the chains, and themselves move the chains so as to progress towards ramps 35 on arms 33 secured to a spindle 32 which is supported in blocks 30, 31 on the cross-member 4. As an article passes over the spindle 16, it encounters the ramps 35 over which it passes to the hooklike portions 34 of the arms 33 and causes these arms to tilt against the action of a counterweight 38. Such tilting movement causes bars 36 on the arms first to engage toothed wheels 20, 21 and rotate them on the spindle 16 until the bars engage a tooth on wheels 19 or 22 secured to the spindle, the wheels 20, 21 having considerably more teeth than the wheels 19, 22. The spindle is then locked and operation of the conveyer prevented until the article is removed from the arms 33 when the counterweight 38 rocks the arms to disengage the bars 36 from the wheels 19, 20, 21, 22. To reduce the shock on locking the spindle 16, the wheels 20, 21 are pressed towards the wheels 19, 22 by a spring 23 and adjustable sleeves 24, 25. The chains 26, 27 may be adjusted by rotating the plates 10 to alter the position of the shafts 13, the plates being secured in position by slidable locking members 11, secured by screws 12, engaging teeth on their periphery. Instead of being gravity-operated, the conveyer may be driven, e.g. by a motor, and the arms 33 in addition to locking the spindle 16 may then also operate a switch or disengage a clutch.
Patent GB-895996-A (GB)
Title: Pneumatic vehicle suspension
IPC: B60G5/00
Filed: 1959-02-09
Abstract: 895,996. Road vehicle spring suspensions; pneumatic springs. GOUIRAND, R. Feb. 9, 1959, No. 4406/59. Classes 108(2) and 108(3). A pneumatic spring acting between a road vehicle axle 3 and the chassis frame comprises a primary pneumatic chamber A and a surge chamber B. The chambers A and B are separated by a flexible diaphragm 19 and the chamber A is also closed from the atmosphere by a flexible diaphragm 20 the stiffness of which is greater than that of the diaphragm 19. The rigid part of the housing of the chamber B is connected rigidly with the axle 10 by arms 9 (see exploded view in Fig. 5, and is connected with the frame by a resilient joint 13 to a transverse rigid member 16. Rubber buffers 12 on the arms 9 serve to take the vehicle weight in the case of failure of the spring add limit excessive travel of the spring. As shown, the invention is applied to tandem axles and the respective primary chambers A, A are connected by a passage 26, flow in either direction through which may be regulated by the action of a manually operated pair of valves 27, 27. The surge chamber B in each case may be completely sealed from atmosphere, or as shown it may have an outlet port 24 which is adapted to be closed by a pad 25 on the diaphragm 19 when pressure in the chamber A exceeds a predetermined amount. A snubber cable 30 is secured at its ends to respective side frame members 1 and has members 32 (Fig. 6) which bear on the axles 3, 4. The tension of the cable may be adjusted by means of a handle 36. Between the cable 30 and each axle end is disposed a pneumatic spring chamber 11 which is connected in each case by a conduit 38 with the respective primary chamber A. The pressure in the primary chambers A may be augmented from a pressure source. In a modification (Figs. 7 and 8, not shown), each axle 3, 4 is carried on an extension arm rigid with the associated housing 7. Also the upper surface of each primary chamber A is flexible instead of being rigid.
Patent GB-752668-A (GB)
Title: Tetrahydro-ª -carbolines
Inventor: HOERLEIN ULRICH
IPC: C07D471/04
Filed: 1954-02-15
Abstract: The invention comprises compounds of formula <FORM:0752668/IV(a)/1> wherein R is hydrogen or a halogen atom and one Y is halogen while the other is hydrogen.  The compounds are prepared (1) by heating a benzylphenylhydrazine of formula <FORM:0752668/IV(a)/2> with an N-alkylpiperidone-4 in presence of aqueous or alcoholic mineral acid; or (2) by reacting compounds of formula <FORM:0752668/IV(a)/3> or <FORM:0752668/IV(a)/4> wherein Me is an alkali metal, with reactive esters of formula <FORM:0752668/IV(a)/5> wherein X is the reactive ester group including halogen.  The examples describe the preparation of 3 - methyl - 5 - chloro - 9 - benzyl -, 3-methyl - 7 - chloro - 9 - benzyl -, 3 - methyl - 5-bromo 9 - benzyl -, 3 - methyl - 7 - bromo - 9 - benzyl - and 3 - methyl - 7 - chloro - 9 - parachlorobenzyl - tetrahydro - lambda - carboline and hydrochlorides, methane sulphonates and naphthalene-1 : 5-disulphonates thereof.  N - benzyl - and N - para - chlorobenzyl-3-chloroaniline are prepared by heating 3-chloroaniline with benzyl and para-chlorobenzyl chloride respectively.  N-benzyl-3-bromoaniline is prepared by heating 3-bromoaniline with benzylchloride.  N - benzyl - N - 3 - bromophenyl -, N - benzyl- N - 3 - chlorophenyl- and N-para-chlorobenzyl N - 3 - chlorophenylhydrazine are prepared by nitrosation and subsequent reduction (using zinc dust and glacial acetic acid in ethanol) of N - benzyl - 3 - bromo -, N - benzyl - 3 - chloro- and N - para - chlorobenzyl - 3 - chloroaniline respectively.
Patent GB-1142582-A (GB)
Title: Improvements in or relating to steel
IPC: C22C38/58
Filed: 1966-02-01
Abstract: 1,142,582. Austenitic steel. STAHLWERKE SUDWESTFALEN A. G. Feb. 1, 1966 [Feb. 3, 1965], No. 4433/66. Heading C7A. An Austenitic steel comprises: C up to - 0À03 Si up to - 1À0 Mn 0À5 - 12À0 Cr 16 - 28 Ni 9 - 20 Cu 0 - 4À0 Mo 1À5 - 6À0 N 0À1 - 0À40 Nb 0À1 - 0À40 with the remainder Fe and unavoidable impurities. The steel may be quenched e. g. from 1050-1100‹C. in water.
Patent GB-455839-A (GB)
Title: Improvements in or relating to ticket nippers
IPC: B26F1/36
Filed: 1936-02-14
Abstract: 455,839. Pliers. FISHBURN, J. E., 39, St. James's Street, Pall Mall, Westminster, and WEBB, C. F., 24, Deane Way, Eastcote, Middlesex. Feb. 14, 1936, No. 4442. [Class 61 (ii)] Ticket nippers of the kind having a slot in the body for the reception of the ticket are provided with a removable punch member 11 guided and held in position by an insertion member 8 secured by a screw 10 in a recessed portion of the body 3, holes 12 in the insertion member forming guides for the punch 11 and another hole 14 in the insertion member forming the female die ; the end of the nose 5 of the lever 1 engages a notch 13 in the punch 11. In the modification shown in Fig. 6 the slot in the body 3 which receives the lever nose 5 is continued to the end and the insertion member 8 is secured by a screw 10a at the top.
Patent GB-431531-A (GB)
Title: Improvements in or relating to processes and apparatus for surfacing sheet material with pigments, varnishes, lacquers, waterproofing solutions or the like
IPC: B05D1/20
Filed: 1934-02-10
Abstract: 431,531. Coating webs. PIRIE, W. B., Oakhill, Hildenborough, Kent, CHESTER, C. A., and MELVILLE, W., c/o Raymakers Syndicate, Ltd., Great Western Trading Estate, Park Royal, London. Feb. 10, 1934, No. 4467. [Class 140] In the surfacing of sheet material in continuous lengths with pigments, varnishes, &c. by the flotation process, the spreading and orientation of the film on the flotation medium is controlled by regulated electric or magnetic potential applied to the film, the flotation medium, or the transfer surface, or to more than one of them. The film may be transferred directly to the web from the flotation medium or indirectly by means of a roller or band &c. As shown in Fig. 2, the pigment &c. is supplied from a dropper 11 and a metal plate 19 on the celluloid wall 16 of the still pool is connected to one pole 26 of a battery, the other pole 21 being connected to an electrode 23 in the bottom of the tank 10. The rotating pattern forming discs 18 also are connected to the pole 26. A rheostat 29 and a reversing switch 30 are provided. As shown in Fig. 4, the transfer roll 31 is connected with the battery pole 26 and is provided with parts of different electric conductivity. As shown in Fig. 5, the pigment &c. is applied to the roller 31 by a series of wicks 40 and thence partly to the flotation medium and partly directly to the web. Specification 332,190, [Class 140], is referred to.
Patent GB-490386-A (GB)
Title: An improved gardening device for weeding, planting and other purposes
IPC: A01B1/16
Filed: 1937-02-15
Abstract: 490,386. Hand tools for planting, destroying weeds, &c. AYLIFFE, H. Feb. 15, 1937, No. 4468. [Class 6 (ii)] A gardening implement comprises a metal body portion 2 of channel section having a handle 1 and a bifurcated lower end 4. The implement tapers towards the bottom and may be made from a metal blank, the handle being formed by rolling. A knob 6 may be plugged into the upper end. The bifurcations at the lower end are bent into a channel section and twisted to face one another.
Patent GB-210994-A (GB)
Title: Improvements relating to whitewash and like brushes
IPC: B25G3/00
Filed: 1923-02-15
Abstract: 210,994. Leng, A. C., and Leng, A. S., (trading as Leng & Sons, C. H.). Feb. 15, 1923. Bristles, fixing.-The tongue piece a usually provided within the bristles and the handle b are secured together by dowels c and nails d or other means arranged with their axes in, or parallel to, the plane of the handle. The members c, d may be formed with barbs to increase their hold. The bristles are fixed by a ferrule through which nails are driven into the handle and into the tongue piece.