baber/WOPTO huggingface dataset:
Patent GB-1216230-A (GB)
Title: Improvements in or relating to polyamides
IPC: C08G69/34
Filed: 1968-05-31
Abstract: 1,216,230. Polyamides from polymerized fatty acids. GENERAL MILLS Inc. 31 May, 1968 [1 June, 1967], No. 26336/68. Heading C3R. A polyamide is prepared from (a) a polymerized fatty acid having a dinner content above 85% by weight or an amide-forming derivative of such an acid and (b) a trimethyhexamethylene diame, the numbers of carboxyl, and amino, groups in the reaction mixture being equal. The fatty acid may be tall oil fatty acid or a mixture of oleic and linoleic acids. Amide-forming derivatives specified are anhydrides, chlorides and C 1-8  alkyl ester. The polymer may contain trimmer and monomer in a ratio between 0À3 and 10 to 1. It may be prepared by distillation of commercially available polymerization products. The diamine may be a mixture of the 2,2,4- at 2,4,4-isomers. The reaction mixture may also contain a diamine of formula NH 2 RNH 2  where R is a C 2-40  aliphatic, cycloaliphatic or aromatic hydrocarbon radical, for example a diamine prepared from a dimerized fatty acid having a C 34  hydrocarbon radical by reaction with ammonia to produce the nitrite and hydrogenation of this. The reaction mixture may also contain an acid derivative of formula where R<SP>1</SP> is a C 1-20  aliphatic, cycloaliphatic or aromatic radical and R 1  is H or C 1-8  alkyl, e.g. sebacic acid, azelaic acid, adipic acid, terephthalic acid or isophthalic acid; an amino acid of formula NH 2 (CH 2 ) x COOH. where x is 2-15 or a lactan thereof or an alkanolamine of formula NH 2 R<SP>11</SP>OH where R<SP>11</SP> is a C 2-8  hydrocarbon radical. The polymerized fatty acid may provide 25% or more of the carbonyl groups in the mixture and the trimethyl-hexamethylene diamine 50% or more of the amino groups. The reaction may be at 100-300‹ C. in an aqueous medium.
Patent GB-398347-A (GB)
Title: Improvements in domestic or like hot water supply systems
IPC: F24D3/08
Filed: 1932-09-22
Abstract: 398,347. Heating water. ANDERSEN, O. C., 1, Titangade, Copenhagen. Sept. 22, 1932, No. 26364. [Class 64 (i).] In a domestic hot-water supply system with a storage tank 1 heated by indirect contact with hot water or steam circulated in a jacket 2 from a boiler 3, cold water for the tank 1 is led first through a coil or the like 8 heated by indirect contact with water circulated in a supplementary heater 7 direct from the boiler 3. Pipes 4, 10 connect the heater 7 in parallel with the jacket 2, which is connected to the boiler by pipes 4, 5. Cold water enters by a pipe 9 and passes in part directly through a tap 121 and in part through the heater 7 and a pipe 6 to the tank 1. The pipe 6 may be branched to supply several tanks 1. The boiler water may circulate in the coil 8 and cold water pass through the tank 7.
Patent GB-669811-A (GB)
Title: Improvements in electron tubes
IPC: H01J19/42
Filed: 1945-10-09
Abstract: 669,811. thermionic valves. EITELMcCULLOUGH, Inc. Oct. 9, 1945 [March 21, 1944], No. 26367/45. Class 39 (i). A thermionic cathode tube comprises an envelope, Fig. 2, consisting of upper and lower sections 2, 3 fused together along a seal 41, a lead-in conductor 14 mounted in the upper section 2 and carrying a cylindrical anode 7 having heat radiating fins 12 and a cap 13 to protect the tube from bombardment, a cathode 11 extending into the anode and a control grid 9 surrounding said cathode, the cathode and control grid being each carried solely by at least one lead-in conductor 18 (not shown), 23, 21 mounted in the lower section 3, and a screen grid 8 interposed between the control grid 9 and the anode 7 and carried by a transverse metallic shield 34 located wholly within the envelope and supported solely by at least one lead-in conductor 19 mounted in the lower section 3 of the envelope. An external shield 41 in the form of a metallic ring encircles the lower section 3 and forms with the shield 34 an electrostatic shield housing the lead-in conductors. The ring 41 is cemented to the envelope at 42 and carries an insulating disc 43 from which project hollow prongs 44 containing lead-extension sleeves 46 soldered at 47 to the prong tips. Each of the grids 8, 9 has an upper free end, the lower end of the screen grid 8 being connected to the shield 34 by a ring 33 and collar 38 on the periphery of a circular aperture 37 in the shield 34 through which the cathode lead-in conductors 21, 23 and control grid 9 extend upwardly within the screen grid 8. Each grid comprises a number of coated longitudinal wire bars 24, 31 held by helical wire windings 26, 32, Fig. 4, the bars and the helical windings being radially aligned for shielding purposes. Specifications 473,579 and 482,461 are referred to.
Patent GB-755702-A (GB)
Title: Improvements in or relating to 1,1-dicyano ethylenes and ethanes containing halogen substituents
Filed: 1954-09-14
Abstract: The invention comprises compounds having four carbon atoms and two nitrogen atoms, the two nitrogen atoms and two of the four carbon atoms constituting two cyano groups both of which are attached to a single one of the other carbon atoms, the carbon atom to which the cyano groups are attached being in turn attached to the remaining carbon atom by a single or double bond, at least one of the remaining valencies being satisfied by a halogen atom and the remainder of the valencies being satisfied by hydrogen and/or halogen atoms.  The compounds are 1,1-dicyano ethylenes of formula <FORM:0755702/IV(a)/1> and 1,1-dicyano ethanes of formula <FORM:0755702/IV(a)/2> where X represents a halogen, Y represents, a halogen or hydrogen, and Z and Z1 represent, alternately, hydrogen or halogen. The dicyano ethanes may be prepared by halogenating 1,1-dicyano ethylene and halogen derivatives thereof, preferably by passing a gaseous halogen through a solution of the dicyano ethylene in a diluent, such as carbon tetrachloride or chloroform, and preferably in the presence of a catalyst, such as red phosphorus, at a temperature of 0 DEG  to 150 DEG  C.  The halogenated dicyano ethanes may also be prepared by substituting halogen for hydrogen in the ethanes.  The dicyano haloethylenes may be prepared by dehydrohalogenation of dicyano di- and tri-haloethanes, preferably by passing a solution of the ethane in a solvent such as chloroform, carbon tetrachloride or sym-tetrachloroethane, through a tube heated to 400 DEG  to 600 DEG C.  In examples (1) 1,1-dicyano-1,2-dichloroethane is prepared by chlorinating 1,1-dicyano ethylene; (2) 1,1-dicyano-1,2 -dibromoethane is prepared by brominating 1,1-dicyano ethylene; (3) 1,1-dicyano-2-chloro ethylene is prepared by dehydrochlorinating 1,1-dicyano-1,2-dichloroethane; (4) 1,1 - dicyano - 1,2,2 - trichloroethane is prepared by chlorinating 1,1-dicyano-2-chloroethylene; (5) 1,1-dicyano-2,2-dichloroethylene is prepared by dehydrochlorinating 1,1-dicyano-1,2,2 - trichloroethane; (6) 1,1 - dicyano - 2-chloroethylene is brominated to 1,1-dicyano-2-chloro-1,2-dibromoethane, which is dehydrobrominated to 1,1-dicyano-2-chloro-2-bromoethylene. Specification 653,468 is referred to.
Patent GB-1516093-A (GB)
Title: Security device
IPC: E05C17/36
Filed: 1975-09-09
Abstract: 1516093 Door chain C D PRATT 9 Sept 1975 [15 June 1974 12 Feb 1975] 26620/74 and 5885/75 Heading E2A A security device which permits a door to open a slight amount only may be held out of operation by manually operated means on one side of the door or disengaged by key operated means on the other. When the door is opened by knob 38, cam 37 acts upon back-plate 28 of double bolt 24 and withdraws heads 27 from keepers 41. Bolt 19, however is not operated by cam 37 and may extend into shroud 13 under the influence of spring 19a when the door is opened sufficiently to free head 20 from engagement with portion 44. Opening the door brings head 20 into contact with the catch 47 on chain 46, trapping the catch in shroud 13. The chain 46 is anchored at its other end by a spring (not shown) and carries a stop (also not shown) which governs the extent to which the door may be opened. If however, peg 23 is inserted in hole 23a and thus brought into contact with indentation 22 in bolt 19, this bolt is held in the disengaged position and the door may be opened fully. The bolt may also be disengaged by turning lock 35, operating cam 34 which contacts both bolt 24 and flange 21 on bolt 19. In the embodiment illustrated in Fig. 5, the chain 46 passes over rollers 60, 61 held by screws in holes 62 extending into member 40 on the door-frame 43. By inverting member 40 and using holes 62a to hold the rollers 60, 61, the device may be adapted from use with a left-hand closing door to use with a right-hand closing.
Patent GB-702798-A (GB)
Title: Improvements in or relating to carding or sliver cans
IPC: B65H75/16
Filed: 1951-11-14
Abstract: 702,798. Portable containers. McGEE, F. Oct. 14, 1952 [Nov. 14, 1951], No. 26624/51. Class 66  The top ring of a sliver can G comprises mutually interlocking inner and outer bands A and B which provide between them a channel for the top edge of the can body. At least one of the bands is pre-formed with internal projections E which collectively engage the body edge around its whole circumference on its insertion in the channel and prevent its separation from the ring. The projections are preferably formed by indenting the medial portion of one or both bands before assembling them, the indentations being elongated circumferentially, as shown and arranged in one, two, or three rows. The bands A and B are assembled by curling the edge F of the inner band over a bead C on the outer band A. Band B preferably extends below band A and has its lower edge folded over at H. The assembled ring is hammered or pressed onto the can body G. A modification which has indentations in both bands A and B is described with reference to Fig. 2 (not shown) and Fig. 3 shows a modified indentation N of wedge shape which has a sloping surface to ride past the can edge during its insertion and a relatively sharp corner which resists withdrawal.
Patent GB-165000-A (GB)
Title: Improvements in and relating to tow-hooks for steam-tugs
IPC: B63B21/56
Filed: 1920-09-20
Abstract: 165,000. Nagel, T. Sept. 20, 1920. Hooks, automatic-release.-A towhook for a steam tug is automatically released by an excessively inclined tow line, and is provided with alternative manual releasing-means. The towhook comprises a framework in which are located a holding-roller f, two pivotal-pawls g, and a sliding hookholder h which engages at its rear end with the pawls g and is provided with upper and lower abutments i which slide in slots in the framework. A hook l having an inclined rear face m is pivoted in the holder h so that its turning is governed by a sleeve n.. The sleeve n is connected by an adjustable link p to a lever q which bears against an abutment r when the tow hook is excessively inclined. The sleeve is thus displaced, the pawls g swung outwards liberating the holder h which slides clear of the sleeve n and allows the hook l to turn as indicated in Fig. 1. A lever u pivoted at t is connected to the link p by means of a rod v, for manually operating the tow-hook, and a spring x is provided to prevent the unintentioned operation of this lever.
Patent GB-1022112-A (GB)
Title: Laying of yarn fibres in sizing and other processes
Inventor: BRADBURY EDWARD
IPC: D06C11/00
Filed: 1961-07-25
Abstract: 1,022,112. Sizing &c. warps. COTTON SILK and MAN-MADE FIBRES RESEARCH ASSOCIATION. Aug. 31,1962 [July 25,1961], No. 26827/61. Heading D1M. A warp Y running through a sizing or other machine encounters the teeth of a comb C at a large angle of incidence i and a small depth of penetration h determined by a guide rod G. Combs C and rods G are mounted on a rotating cylinder so as to move in the same direction as the warp, but more slowly, each comb entering the warp before the preceding one leaves it. Combs of ordinary construction may be replaced by alternate large and small discs assembled on a shaft, the difference in their diameters controlling the depth of penetration h; or a helically grooved rod may be used.
Patent GB-739131-A (GB)
Title: Improvements in or relating to slide fasteners
Inventor: HEIMANN HEINRICH
IPC: A44B19/04
Filed: 1953-09-30
Abstract: 739,131. Sliding clasp fasteners. WALDES KOH-I-NOOR, Inc. Sept. 30, 1953, No. 26828/53. Class 44. In a plastic slide fastener comprising rows of oppositely disposed fastener elements moulded directly on to carrying tapes, the coupling ends of the elements are provided on their opposite side faces with recesses extending the full depth thereof, the recesses bordering coupling heads which have a depth corresponding to the depth of the recesses and a width to enable interlocking engagement in the corresponding recesses, the coupling heads of one row each engaging on the side face recesses of the two adjacent elements of the opposite row, the side recesses being defined in part by oppositely facing surfaces disposed in the plane of the tapes and the coupling heads being provided with surfaces similarly disposed on the plane of the tapes and arranged complementarily to the recess surfaces such that the complementary surfaces of the heads of the elements of one row abut over the recess surfaces of the elements of the opposite row. In the arrangement shown, each element is of a type adapted to be formed in a two part mould which is separable in the plane of the fastener tapes, the element comprising a shank portion A which may be moulded direct on to its carrying tape and a coupling portion B having at each side thereof a recess 14 widened at its upper end by a shelf portion 17, the wall portions of the recess being sloped in opposite directions away from the horizontal middle plane of the element (corresponding to the plane of the tape). The portion B is also formed with lower and upper corner recesses 22 and 42 respectively, the vertical walls of these recesses also being sloped away from the middle plane of the element.
Patent GB-1309620-A (GB)
Title: Apparatus for feeding filling yarns to a warp knitting machine
IPC: D04B27/10
Filed: 1970-10-08
Abstract: 1309620 Knitting-machines J P STEVENS & CO Inc 8 Oct 1970 [20 Oct 1969] 26874/72 Divided out of 1300785 Heading D1C A weft thread transport apparatus for a warp machine comprises a frame carrying guides for each thread, which lays weft between two endless chains 2L, 2R which carry the wefts to the knitting line. In the embodiment of Figs. 2, 3 yarns from a package support 28 are threaded through a frame 30 which moves in a figure of eight path in a vertical plane. The frame 30 is vertically movable, by means of an oscillating rod 39, in an outer frame 32 drawn across the machine by chains 33. The cycle of the frame 30 is as follows. In a lower position the threads are engaged by the pins of one chain, e.g. 2R, the frame moves slantingly upwards and deposits the threads on the other chain 2L, where they are cut. The frame is lowered to depsit the threads on the next set of pins or chain 2L. Similar slanting upwards then downwards movement completes the figure of eight path. In an alternative embodiment, Fig. 4, a very large number of threads from a package support 45 are drawn across the two chains by a frame 46. At the right hand side the threads are placed in a bar 51. On return of the frame to the left hand side, it and the bar are lowered to deposit the threads on the chain.
Patent GB-814715-A (GB)
Title: Improvements in and relating to lighting appliances
Inventor: HOLMES JOHN GUYSCLIFFE
IPC: F21V5/00
Filed: 1954-09-16
Abstract: 814,715 Lamp refractors. HOLOPHANE Ltd. Sept. 16, 1955 [Sept. 16, 1954], No. 26936/54. Class 75(2) A lantern incorporates a dished refractor to be set vertically and comprising two systems of internal coaxial non-re-entrant concentrating prisms 6 concentically arranged about respective optical axes 07, 07<SP>1</SP> defining a geometric centre O which, when the refractor is viewed from the 'front lie at an angle on each side high above the downward vertical but below the horizontal, the part of the refractor on which each system of prisms is formed being a figure of revolution with its axis coincident with the optical axis of the prism system, the lantern also incorporating a concentrated light source at a point 8 nearer the refractor than is the geometric centre O and below the level of the geometric centre O. Preferably the centre of the light source is about 25 per cent of the distance from the geometric centre to the refractor nearer the refractor than is the geometric centre and is about 6“ per cent of that distance below the geometric centre. The two parts of the refractor having the prism systems may be segments of the same sphere or of different spheres or of toroids or of cones. The refractor may have portions without prisms. The prism angles may increase from the medial vertical plane outwardly and the inner surfaces of the prisms may be made steeper from the centre outwardly. The apices of the prisms may be rounded or flattened particularly the prisms on the lower part of the refractor or clear areas or flutes may be formed between the prisms on the lower part or vertical flutes may be formed on a part or the whole of the outer surface of the refractor or the whole outer surface may be etched or depolished. The refractor has a circular rim and is clamped thereby to the lantern. The rim may have a notch 10 adapted to be engaged by a fixed or adjustable lug on the lantern. Alternatively the refractor is carried in a cover plate hinged to the lantern. The concentrated light source is a filament lamp mounted in an adjustable holder. Specifications 420,922 and 710,127 are referred to.
Patent GB-392806-A (GB)
Title: Improvements in and relating to diesel engines
IPC: F02B21/00
Filed: 1932-09-28
Abstract: 392,806. Oil engines. LANG, F., 41, Laimerstrasse, Munich, Germany. Sept. 28, 1932, No. 26949. [Class 7 (iii).] In a Diesel engine, an antechamber b is located between a pocket a, which receives air with a substantial increment of fuel, and a main combustion chamber d. The antechamber b communicates with the air pocket through a constricted port c and with the combustion chamber through a less constricted port e, and, if preferred, more than one throttling passage may be provided in the antechamber. The combustion chamber may be 8-shaped or heart-shaped in plan and contains the inlet and exhaust valves g, h.
Patent GB-359646-A (GB)
Title: Improvements in tunnel segments and the like
IPC: E21D11/14
Filed: 1930-09-09
Abstract: 359,646. Conduits. WRIGHT, W. H., 12, Mill Lane, Loughborough, Leicestershire. Sept. 9, 1930, No. 26968. [Class 33.] Segments for building conduits comprise hollow metal frames I with one or more longitudinal cavities of U-section, the side walls of which have inturned ledges 6 on which plates &c. 8 are placed to close the cavities. End walls 3 of lesser depth are provided. Slots 7 are provided at the ends of the ledges 6 to permit insertion of the plates 8 which are then secured by bolts 9 threaded to the plates or provided with nuts 10. One or both endplates 8 may be secured without bolts by engagement with the end walls 3 and a bevelled or overlapping part 13 of an adjacent plate or by bevelled engagement with both adjacent plates. Wedges 15, Fig. 2, may be provided in place of or in addition to the bolts, the side edges of the plates then being tapered; cement filling may assist the wedges and cement may also be placed on the ledges 6. Reinforcing ridges &c. may be provided on the inner face of each plate 8 and the outer face may have projections or recesses to assist in retaining a plaster or cement cover. A ring of segments is completed by a key member 16, Fig. 1, preferably with diverging end walls 16a and provided with a closure plate 17 with bevelled ends ; the walls of this member may taper towards their free edges.
Patent GB-479619-A (GB)
Title: Improvements in and relating to protecting devices for kneading and mixing machines
IPC: A21C1/14
Filed: 1936-10-05
Abstract: 479,619. Machinery guards. ARTOFEX ENGINEERING WORKS, Ltd., and SCHAERER, A. Oct. 5, 1936, No. 27024. [Class 80 (iv)] [Also in Group XXXVII] In kneading and mixing machines, particularly for dough-like materials, including two kneading implements travelling in intersecting elliptical paths inside a rotating bowl, a guard is provided comprising, two rigid lateral members supported on the main machine frame and extending towards the front of the bowl, and removable closure means adapted to close the gap between the front ends of the lateral members. The closure means is interconnected with the driving means. The kneading elements 1, 2, which project from the bowl 3, are driven by gearing in a casing 4 extending from the sides of which and secured thereto are side guards 10, 11 preferably curved and extending to such a distance as to leave a gap corresponding to an arc of 120‹ on the bowl 3. A third guard plate 14, higher than the others, is hinged to the guard 10, but it may be in two parts hinged respectively to the guards 10, 11. Alternatively, the guard 14 may be hinged about a horizontal axis. A small space is left by the guard 14 to permit access to the bowl for testing the mix. A belt striking gear 21 has a depending arm 22, a pin 23 on which engages a curved slot 24 in the end of a lever 25 pivoted at 26. The other end 27 of the lever is adapted to coact with a plate 28 secured to the guard 14. When the belt is on the fast pulley 19, the end 27 obstructs the plate 28 and the guard 14 cannot be opened, and when this guard is open, the plate 28 lies over and obstructs the lever 25 and prevents the belt being shifted to the fast pulley. In a modification, the machine is driven electrically and a switch mounted on the guard 10 and normally kept open by a spring is actuated by a projection on the swinging edge of the guard 14. The switch is protected against accidental actuation when guard 14 is open.
Patent GB-385044-A (GB)
Title: A process of and means for treating moulded articles made from cement, concrete, artificial stone and the like
IPC: C04B40/02
Filed: 1931-09-29
Abstract: A process for initially hardening hollow or tubular moulded articles made from cement, concrete or like material consists in placing an open-ended mould together with the hollow or tubular moulded article contained therein into a trough, trench or chamber containing water and in admitting steam to the trough &c. above the surface of the water so that the interior of the article is subjected to the action of the steam and the upper part or the whole of the mould and the water are heated thereby, the trough &c. being merely covered, e.g. by a number of wooden sections, so that no appreciable steam pressure is set up in the trough; the level of the water in the trough is such as not to cause interference with the steam treatment of the article, and is preferably just below that of the hollow interior of the article. In an example the steam is admitted to provide a temperatu reof from 60 DEG -160 DEG  F. and the treatment continued for 1 1/2 -3 hours.  The steam may be passed in through steam pipes extending through the water space and opening into the space above the water. Long concrete poles &c. may be hardened in long U-shaped troughs the floors of which may be shaped to correspond to the lower part of the mould.  These long troughs may be used for the hardening of small articles by supporting the small articles in the trough on metallic bridge-pieces or cradles which may consist of iron bars bent to U- or E-shape with the ends of the branches bent outward to rest on the sides of the trough.  Alternatively a wider trough may be provided with a number of longitudinal channels or grooves in each of which the moulds may be positioned. According to the Provisional Specification the hardening may be carried out by completely immersing the mould containing the moulded article in heated water in the trough or merely by steaming.