baber/WOPTO huggingface dataset:
Patent GB-1349305-A (GB)
Title: Apparatus for supporting a stack of sheet material being cut or  other wise worked on
IPC: B26F1/38
Filed: 1971-06-04
Abstract: 1349305 Cutting apparatus GERBER GARMENT TECHNOLOGY Inc 4 June 1971 [23 Nov 1970] 19028/71 Heading B4B An apparatus for cutting sheet material comprises a table having a vacuum chamber 11  over which is mounted an air-pervious base 24 for supporting a stack of material, an airimpervious cover 38 adapted to be laid over the material and an air-pervious block 36 thereby allowing air to be drawn horizontally across the stack and then downwardly to the vacuum chamber so that the stack is held on the base by air at atmospheric pressure bearing on the cover. The base 24 is made from a cellular plastics material provided with additional vertical holes and mounted on metal mesh 20 supported within the walls 10, 12, 14 of a table 10. The vacuum chamber is defined below the air-pervious base and may be divided up into separate compartments 11 by means of impervious walls 13. Each compartment is provided with a valve 17, 19, Fig. 1 which are actuated by a cam 35 on a cutter carriage 30. In the embodiment shown in Figs. 1 and 2, the stack of material consists of sheets of porous material each sheet being covered by sheets of impervious metal foil. The air is drawn horizontally through the sheets into the vacuum chamber. In order to provide for the flow of air over the stack when the latter consists of a non- porous material, a layer (44), Fig. 4 (not shown), of an air-pervious material is laid over the stack thereby allowing the air to flow thereover. In a modification, the air-pervious layer may be replaced by a sheet of material having grooves (50), Fig. 5A (not shown) or a sheet of corrugated cardboard. In a further modification, the airimpervious cover is replaced by a blanket 46a, Fig. 9 having flutes 50a formed in its surface engaging the top of the stack, the flutes being closed at their ends. In a modification of the latter embodiment, the blanket material is formed into two endless bands (68), Fig. 8 (not shown), entrained over rollers supported on the tool carriage. The cutter carriage may be provided with a pair of endless belts 54, Fig. 6 arranged to ride over the cover 38 to thereby smooth the sheet material and also serve to seal the cuts made in the cover in order to minimize the loss of vacuum. A pair of rollers 62 are mounted adjacent the cutter blade 60 and roll of the material to press out any wrinkles therein.
Patent GB-147064-A (GB)
Title: Improvements in and relating to steam-heated hot water radiators
IPC: F24H3/00
Filed: 1920-07-06
Abstract: 147,064. Schwarz, J. May 19, 1919, [Convention date]. Addition to 147,063. Drawings to Specification. Radiators.-The heating effect of radiators constructed as described in the parent Specification is regulated by throttling the drain through which escapes water displaced by the injected steam or the condensation therefrom. The overflow may be measured and recorded as an indication of the amount of heating energy consumed.
Patent GB-839458-A (GB)
Title: A cover or blanket convertible into a coat
IPC: A47G9/02
Filed: 1956-06-20
Abstract: 839,458. Blankets. SCHANDA, M. June 13, 1957 [June 20, 1956], No. 19082/56. Class 142(4 [Also in Group VII] A rectangular blanket 13 convertible into a coat 14 is provided with a central longitudinal slot 5 extending from the end a and two transverse slots 8 extending inwardly from the sides of the blanket. The slots 5, 8 have divisible fasteners along their edges, and halves of divisible fasteners are provided along the end a. To form the coat, the outer end fasteners 1, 4 are connected' to the fasteners 9, 11 respectively, then the parts of the blanket beyond the slots 8 ar folded inwardly as in Fig. 3, and the fasteners 2, 10; 3, 12 connected together. The slot 5 forms a neck opening, and zip fasteners &c. may be provided for closing the front of the coat. The coat may be reversible and provided with a collar or a hood and with pockets also closable by fasteners. The fasteners 1-4 and 9-12 may be zip fasteners, buttons, press studs, hooks &c.
Patent GB-1315232-A (GB)
Title: Process for the manufacture of 2,5-diacylamino-1,4-benzoquinones
IPC: C07C233/00
Filed: 1971-06-04
Abstract: 1315232 Preparing 2,5 - diacylamino - 1,4- benzoquinones CIBA-GEIGY AG 4 June 1971 [11 June 1970] 19091/71 Heading C4P 2,5 - Diacylamino - 1,4 - benzoquinones are prepared by direct acylation of 2,5-diamino-1,4- benzoquinones with carboxylic acid halides in presence of a Friedel Crafts catalyst, e.g. aluminium chloride. The reaction preferably takes place in an inert organic solvent e.g. nitrobenzene or methylene chloride using at least 3 mols. catalyst and 2À4 to 3À0 mols. acylating agent per mol. of diaminobenzoquinone. Other catalysts and inert organic solvents are specified.
Patent GB-1102894-A (GB)
Title: Improvements in refrigerator doors
IPC: F25D23/08
Filed: 1965-05-06
Abstract: 1,102,894. Refrigerators. ETABLISSEMENTS MAILLE ET VAGNEUX, and L'- EQUIPEMENT MODERNE INDUSTRIEL PAR APPLICATION DU CAOUTCHOUC MANUFACTURE ET DES PLASTIQUES E.M.I. 6 May, 1965 [6 May, 1964], No. 19228/65. Heading F4H. Frost formation on the hollow sealing strip 8 interposed between the refrigerator door (not shown) and its door frame 7 is prevented by circulating a heated fluid through the sealing strip under such pressure as to inflate the strip. As shown, air is supplied through a pressurereducing device 10, a chamber 11 containing an electric heater 12, and an inlet 8b to the sealing strip and is discharged through an outlet 8c, the strip having an internal partition 9 between inlet 8b and outlet 8c. In further embodiments the partition is omitted and outlet 8c arranged on the side of the sealing strip remote from inlet 8b (Fig. 3, not shown), or the air is recycled (Fig. 4, not shown). The strip 8 may be fixed to either the frame 7 or to the door in which latter case the air supply conduits are flexible. Outlet 8c may include a constant pressure relief valve.
Patent GB-696372-A (GB)
Title: Improvements relating to socket units of plug and socket electric connectors
IPC: H01R24/76
Filed: 1950-08-01
Abstract: 696,372. Two-part couplings. PARSONS, Ltd., C. H., and HANDLEY, G. B. July 19, 1951 [Aug. 1, 1950], No. 19252/50. Class 38 (i). An insulating base 13 of a socket is formed with oppositely-disposed recesses 19 in which are secured by screws, metal strips 22, 23 having apertured ends 26 which overhang gapped portions 20, 21 in the base, said ends 26 being suitably spaced to co-operate with mounting lugs 42, Fig. 5, in a metal box 12. The straps being recessed below the front face of the base, said face projects above the box wall 40 leaving wiring space between the rear face of the base and the base 39 of the box. The projecting part of the base 13 is received in a deep cover 15 screwed to the straps. The securing screw for the strap 23 may pass through a metal plate which anchors the earth socket contact, thus connecting said contact to the box 12.
Patent GB-407589-A (GB)
Title: Improved arrangements for producing alternating currents using discharge devices
IPC: H02M1/00
Filed: 1933-07-07
Abstract: 407,589. Converting. ALLMANNA SVENSKA ELEKTRISKA AKTIEBOLAGET, Vasteras, Sweden. July 7, 1933, No. 19318. Convention date, July 8, 1932. [Class 38 (ii).] In an inverter or frequency changer using a discharge device, commutation is effected by means of an auxiliary anode to which a voltage is applied which causes the arc to be transferred to it from a conducting anode, the voltage then being reduced to cause the arc to transfer to another main anode. In an inverter arrangement Fig. 1 for interconnecting a D.C. circuit 1 and an A.C. circuit 2 a source 3 of periodic potential having a waveform as shown in Fig. 2 is connected between the centre point of the primary 15, 16 and an auxiliary anode 4 having a control grid. At the moment of commutation the anode 4 is given a higher potential with respect to the cathode 13 than (e.g.) the anode 5 and the arc transfers from the anode 5 to the auxiliary anode 4, retransference of the arc to the anode 5 being prevented by grid-control. The voltage of the anode 4 is then reduced and the arc transfers to the anode 6. The source 3 of periodic potential may be a condenser which is periodically charged from a battery. In a further modification the source 3 consists of a condenser bridged by a choke in series with a grid controlled valve. Fig. 5 shows further modification in which the periodic potential is obtained from an oscillatory condenser circuit 7, 10, 11 coupled to the auxiliary anode circuit through a transformer 19. The condenser 7 is discharged through a further auxiliary anode 12, the moment of discharge being determined by grid control. In a frequency changer as shown in Fig. 6 each pair of anodes 35 associated with one of the phase windings of the transformer 31 is provided with an auxiliary anode 34.
Patent GB-651323-A (GB)
Title: Improvements in or relating to knitting machines and fabrics produced thereon
IPC: D04B1/24
Filed: 1946-06-28
Abstract: 651,323. Knitting. TOONE (NOTTING- HAM), Ltd., B., and ALLEN, T. L. June 28, 1946, No. 19368. [Class 74 (ii)] Each sinker of a rotating cylinder, independent-needle knitting-machine has, on its near edge, a projection such as a neb 6, over which bights of yam are at first drawn and measured; the bights being then drawn down on to the upper edges of the sinkers at the rear of the projections, whereby the loops of the last preceding course are knocked over: and the sinkers at the knocking-over station being retracted solely under the influence of centrifugal action and the control of the newly-fed thread and remaining retracted until after knock-over. The rear edge of the neb may merge into the sinker body by a rearwardly-directed curve, but preferably it merges into a depression 6c into which the bight passes and by virtue of which any tendency for the sinkers to over-run is checked. The sinkers, which have been withdrawn by cam 10 as the needles rise to take yarn, are advanced by a face such as 15 on sinker cam 9 or 9b, as the needles are lowered. Towards the end of the yarn drawing operation however, cut-back parts 9a, 9c of the sinker cams 9, 9b permit sinker retraction, whereby tensioning of the sinker loops of the last preceding course by cam movement of the sinkers is avoided. After knock-over, the sinkers are advanced so that the old sinker loops are held down by the sinker throats and are carried to the rear of the needles, which may then rise in front of them to clear. The stitch cams are cut back at 16, 16a to ease the strain imposed on the loops immediately before and after they are drawn and measured. A plating yarn may be fed alongside the ground yarn which is so tensioned as to ensure correct plating. When starting knitting, the yarn may be fed in front of the sinker webs for a few courses, the sinkers being projected in the customary way, until the selvedge edge has been knitted. The arrangement assists the production of loops of relatively small size, as when knitting the ankle portion of a ladies' stocking.
Patent GB-478209-A (GB)
Title: Improvements in connection with the removal of scale-like deposits from vessels madeof aluminium or aluminium alloys
IPC: C11D7/08
Filed: 1936-07-13
Abstract: A solution for removing deposits, e.g. beer scale, milk scale, &c., from vessels made of aluminium or aluminium alloys contains sulphuric acid, one or more organic derivatives of ammonia, e.g. urea or urethane, one or more salts of ammonia, and also one or more sulphates, with or without persulphates, unless these have already been added in sufficient quantity in the form of ammonium salts. Polyhydric alcohols and oxidizing agents such as perborates, permanganates, and pyrolusite may also be present. The solution may be made into paste form by addition of binders such as kieselguhr, clay, carbohydrates, paraffin, or size. Examples of suitable compositions are (a) a solution of sulphuric acid, ammonium sulphate, urea, glycerine, and starch, with or without kieselguhr and clay; (b) a solution of sulphuric acid, urea, ammonium sulphate, and ammonium persulphate, with or without pyrolusite, made into a paste with clay-containing binders; (c) a solution of sulphuric acid, urea, ammonium sulphate, and perborate, made into a paste with clay-containing binders with or without paraffin.ALSO:Deposits, e.g. beer scale, milk scale, &c., are removed from vessels made of aluminium or aluminium alloys by treating them, e.g. by brushing, with a solution containing sulphuric acid, one or more organic derivatives of ammonia, e.g. urea or urethane, one or more salts of ammonia, and one or more sulphates, with or without persulphates, unless these have already been added in sufficient quantity in the form of ammonium salts.  Polyhydric alcohols, and oxidizing agents such as perborates, permanganates, or pyrolusite may also be present. The solution may be made into paste-form by addition of binders such as kieselguhr, clay, carbohydrates, paraffin, or size.  Examples of suitable compositions are: (a) a solution of sulphuric acid, ammonium sulphate, urea, glycerine, and starch, with or without kieselguhr and clay; (b) a solution of sulphuric acid, urea, ammonium sulphate, and ammonium persulphate, with or without pyrolusite, made into a paste with clay-containing binders; (c) a solution of sulphuric acid, urea, ammonium sulphate, and perborate, made into a paste with clay-containing binders with or without paraffin.
Patent GB-1338772-A (GB)
Title: Rotary vane compressors
IPC: F01C21/10
Filed: 1971-06-08
Abstract: 1338772 Rotary positive-displacement compressors TRW Inc 8 June 1971 [15 July 1970] 19473/71 Heading F1F In a vane-type compressor a rotor 30 is lodged in a cylindrical chamber defined by end caps 13, 16 and a member 18, which are pivotally interconnected by pins 62 and clamped by bolts 17. The pins 62 facilitate adjustment of the member 18 relative to the rotor (when the bolts have been slackened) so as to minimize leakage at the axially-extending line of tangency 48 between exit and inlet ports 49, 50. A pressure-loaded seal 48a may be provided at said line. A tubular locking-member 68 with knife edges 70, 71 fixes the end caps and member 18 relative to one another when the bolts are tightened. The rotor is secured to a shaft 22 carried by bearings 20, 23. The vanes 37 have shoes 38. Pins 42 and springs 43 inter-connect diametrally-opposed vanes.
Patent GB-293756-A (GB)
Title: Improvements in and relating to mercury boilers
IPC: F22B3/02
Filed: 1928-07-05
Abstract: 293,756. British Thomson-Houston Co., Ltd., (Assignees of Nerad, A. J.). July 11, 1927, [Convention date]. Vapour engines.-In order to economize in mercury in a mercury boiler, an adulteration of mercury, e.g. an amalgam with lead, is employed. The boiler may comprise a drum 1 with depending tubes comprising outer tubes 3 and inner tubes 4. The latter are carried by a header 8 and form down passages 5 and up passages 6. The tubes 4 have double walls forming insulating spaces 7 and, in order to facilitate liquefaction of the amalgam at starting, conducting blocks 12 are placed in the spaces 7.
Patent GB-275225-A (GB)
IPC: H01R13/514
Filed: 1927-07-25
Abstract: 275,225. Hoffmann, R. July 30, 1926, [Convention date]. Plug couplings.-The handle d of a single pin plug-coupling is made of angular form having one or more flat surfaces so that two or more such elements can be fitted together and secured by an adhesive or by a wire, thread, resilient band, or spring clip g to form a two-pin or multiple pin connector. Each pin a is mounted eccentrically on its handle so that the distance between the pins may be varied by selection of the abutting surfaces. A socket may be provided at the rear to receive a separate plug member h and the leads c are attached by spring clips.
Patent GB-925816-A (GB)
Title: Heating boiler preferably for central heating provided with convection part and dust separator
IPC: F23J15/02
Filed: 1960-06-03
Abstract: 925,816. Collecting flue dust. SVENSKA JARNVAGSVERKSTADERNA A.B. June 3, 1960 [June 3, 1959], No. 19714/60. Class 51 (1). [Also in Group XI] In a central heating boiler, cyclone dust separators 4 are mounted on either side of a by-pass duet 9 behind the convection part 2 of the boiler. The gases from the convection part 2 pass through an outlet 3 to a space 11, the mid-part of which forms the by-pass duct 9. The cyclone separators 4 have tangential inlets 5, and depending gas outlet sleeves 6. Receivers 8 for the flue dust are removably attached to bottoms of cyclones 4 which extend outside the boiler casing. Covers 9a, 20 accessible through lids 15, 16 enable the by-pass duct 9 and either cyclone 4 to be closed to the space 17 from which the gases pass to the flue.
Patent GB-725633-A (GB)
Title: Improvements in or relating to clamping devices
IPC: F16G3/00
Filed: 1953-07-16
Abstract: 725,633. Friction grip fastenings. GORO SOC. ANON. July 16, 1953 [July 17, 1952], No. 19739/53. Class 44. [Also in Group XXIV] A clamping device comprises a pair of substantially parallel rollers mounted between side pieces, at least one of the rollers having means for exerting a pull on the periphery of the said one roller, the centre axis of the said one roller being displaceable relatively to the centre axis of the other roller under the action of the pull, the arrangement being such that when a sheet of material is introduced between the rollers and a pull is exerted on the said one roller, the sheet of material is clamped between the rollers and subsequently the pull is transmitted to the sheet. In the construction shown in Fig. 1, the two rollers 1, 2 are each mounted between side pieces 3, 3<SP>1</SP> on eccentrically positioned stub shafts so that as a pull is exerted on the periphery of each roller by chains 9 (not shown) and 91, the rollers pivot about the stub shafts and grip the sheet of material 11. The roller 2 is rotatably fixed to the side pieces by cottered rings 6. The roller 1 is removable since one of its stub shafts engages in a circular aperture and the other in an, L-shaped slot 7 which extends to the edge of the side piece. The chains 9, 9<SP>1</SP> are connected to staples 8 and there are two chains to each roller, one near each end. All the chains are connected to a single pulling means. In a modification only one roller is mounted eccentrically. In the construction shown in Fig. 3, the stub shafts for the rollers are centrally positioned but are mounted in inclined slots 106, 107<SP>1</SP> so that when a pull is exerted on the rollers by chains 109<SP>1</SP>, the rollers are moved together to grip the sheet 111. In a modification only one of the rollers is displaceable in slots. Two clamping devices may be connected together to a device for exerting opposite equal pulls to enable the two ends of a belt to be drawn together.
Patent GB-1418244-A (GB)
Title: Thermoplastic moulding compositions
IPC: C08L51/00
Filed: 1974-05-06
Abstract: 1418244 Polycarbonate moulding compositions BAYER AG 6 May 1974 [4 May 1973] 19812/74 Headings C3R and C3G A thermoplastic moulding composition comprises (a) from 5 to 95% by weight of a polycarbonate and (b) from 95 to 5% by weight of a graft copolymer of (i) an aromatic monovinyl compound and (ii) acrylonitrile and/or derivatives thereof grafted on to an ethylene/vinyl acetate copolymer. The examples describe compositions containing bisphenol A polycarbonate and a graft copolymer of styrene and acrylonitrile on an ethylene/vinyl acetate copolymer.
Patent GB-918454-A (GB)
Title: A process for the production of polycarbodiimides
IPC: C07D229/00
Filed: 1961-06-01
Abstract: A process for the production of polycarbodiimides comprises reaction in a polyisocyanate of formula R1(NCO)x with a monocarbodiimide of a formula R2-NCN-R2 and selectively removing e.g. by applying vacuum or by fraction of distillation or by solvent extraction, a monoisocyanate of formula R2-NCO formed in the reaction from the reaction mixture, leaving the polycarbodiimide in the residue (x being an integer of at least 2, R1 being an organic radical with a valency of x and R2 a monovalent organic radical).  Preferably the reaction is performed at a temperature between 80 and 230 DEG C. Either the polyvalent isocyanate or the monocarbodiimide can be placed initially in the reaction vessel and the second component is then introduced, the temperature and pressure in the reaction vessel and the running-in speed being so chosen that the monoisocyanate can distil off at the rate at which it forms. According to another working method, a polyvalent isocyanate and a monocarbodiimide are introduced into the reaction vessel, placed under vacuum and heated at the rate at which the liberated monoisocyanate distils off uniformly.  A condensation catalyst e.g. tributyl or triphenyl-phosphine oxide may be present in the reaction.  Specified polyvalent isocyanates are toluylene-2,4- and -2,6-diisocyanate, diphenylmethane - 4,41 - diisocyanate, dicyclohexylmethane-4,41-diisocyanate, 1-chloro-2,4-diisocyanatobenzene, and hexamethylene diisocyanate, and also triisocyanates, such as the reaction product of 1 mol of trimethylolpropane and 3 mols of toluylene diisocyanate, as well as the polyisocyanates of the diphenylmethane series described in Specification 899,036. Specified monocarbodiimides are diethylcarbodiimide, dicyclohexylcarbodiimide, diphenylcarbodiimide, bis - p - chlorophenylcarbodiimide and bis-(4-tolyl)-carbodiimide. In an example hexamethylene-1,6-diisocyanate is heated with dicyclohexyl carbodiimide when cyclohexylisocyanate distils off. Further dicyclohexyl carbodiimide is added and heating continued when cyclohexylisocyanate and unchanged dicyclohexyl carbodiimide distil off leaving a polycarbodiimide product having a composition of 70.6% C, 9.65% H, 0.8% O2 and 19.95% N.  Many other examples are given. Specification 795,720 also is referred to.
Patent GB-418031-A (GB)
Title: Improved gate or door holder or stop
IPC: E05C1/04
Filed: 1933-07-13
Abstract: 418,031. Door stops and holders. BAYFORD, P. M. S., Orleton, Oaklands Avenue, Esher, Surrey. July 13, 1933, No. 19866. [Class 65 (i).] A stop or holder for retaining a hinged door or gate in the open position comprises a bar slidable in a fixed guide or housing so as to be capable of projection into the path of the free edge of the door, means being provided intermediate the ends of the guide or housing and of the bar to limit the travel of the bar. In the form shown, the sliding member 7 is a rectangular block of wood and the housing 2 is formed of wooden parts built up on a base 1 which is provided with tenon bars 5 on its underside for embedding in cement or the like. A pin 9 fixed in the base 1 engages a recess 8 in the sliding block 7 to limit the travel of the block by contact with the ends of the recess. In a modification, the parts of the device are formed of metal, and the housing is replaced by a pair of n-shaped guides formed by pairs of bolts with connecting pieces at the top supported on ferrules on the bolts. The sliding member 7 may be of any section, and may be constituted by a tube with its ends plugged or capped with wood, rubber or any other suitable material. The device may be fixed on the ground or on any other support, and may be secured by bolts or in any other suitable manner ; it is reversible, so that either end may be used to engage the door.