baber/WOPTO huggingface dataset:
Patent GB-376768-A (GB)
Title: Manufacture of artificial silk of high tensile strength from viscose
IPC: D01F2/08
Filed: 1931-04-14
Abstract: Viscose silk of high tensile strength and strongly indented cross section is obtained by the addition to the viscose of a substance that reduces surface tension in conjunction with the use of a coagulation bath containing at least 40 per cent sulphuric acid or the equivalent.  Suitable agents for addition to the viscose are turkey red oil, monopol oil, substituted naphthalene sulphonic acids or their salts, and hydrogenated naphthalene sulphonic acids.  In examples, viscoses containing turkey red oil and sodium dibutyl naphthalene sulphonate are extruded into coagulation baths consisting of 37 per cent sulphuric acid with additions of acid sulphates, 75 per cent sulphuric acid, and 4 parts of sulphuric acid, one part of methyl alcohol, and one part of water.  Specifications 274,521, 281,351, 303,514, 304,244, 307,829, 311,112, 317,608, 334,030, 337,350, [all in Class 2 (ii), Cellulose &c.], 345,938, and 361,760 are referred to.
Patent GB-417312-A (GB)
Title: Improvements in apparatus for supplying and mixing hot and cold water
IPC: G05D23/13
Filed: 1934-04-12
Abstract: 417,312. Thermally-actuated valves. TWYFORDS, Ltd., and WEBSTER; J. T., Cliffe Vale Potteries, Newcastle Road, Hanley, Staffordshire. April 12, 1934, No. 11020. [Class 135.] The supply of hot water through an inlet 3 to a chamber 2, where it is mixed with cold water entering at 6, is controlled by a sleeve valve 17, having triangular slots 18, actuated directly through a vapour thermostat 9, the lower end of which is fixed on a rod 10. To assist mixing, a perforated baffle plate 19 is secured to the valve stem 14.
Patent GB-801059-A (GB)
Title: Improvements in or relating to densimetric separation apparatus
IPC: B03B5/42
Filed: 1957-04-04
Abstract: 801,059. Sink-float separators. PREPARATION INDUSTRIELLE DES COMBUSTIBLES. April 4, 1957 [July 13, 1956], No. 11051/57. Class 82(2) A sink-float separator comprises a rotating open type drum 8 closed over the lowest portion of its periphery by a conveyer belt 1 to form a heavy liquid pool into which the unclassified material is inproduced through an axial aperture, the peripheral speed of the drum being equal to the speed of the belt. The floating material is discharged over a weir (not shown) in the opening 13 and the sinks are elevated by vanes 10 and the belt 1 and discharged at 20.
Patent GB-527442-A (GB)
Title: Improvements in or relating to arch form buildings such as hangars and sheds
IPC: E04B1/32
Filed: 1939-04-12
Abstract: 527,442. Roof trusses. ROBSON. P. W. April 12, 1939, No. 11064. [Classes 20 (ii) and 20 (iv)] A roof for a shelter, hangar, and the like is formed of arched ribs with inner and outer booms staggered in the longitudinal direction of the roof and interconnected by inclined lattice members, and an arched covering integrally united to the ribs. The outer booms 4 are of hollow construction adapted to receive the ends 10 of the reinforcement of concrete panels 9 and cement filling, and the inner booms 5 are formed of three angle section bars ; one 6 placed between the other two which are opposed outwardly. The inner and outer booms are joined together by lattice members 7 inclined in two directions. The ends of the lower booms may abut against concrete footings sunk in the ground, while the ends of the upper booms may abut against a vertical wall 12 supported by the footings. The trusses may be formed of complete preformed sections joined end to end, and the lattice bracing on the end sections may be more closely spaced than on the remaining sections.
Patent GB-987156-A (GB)
Title: Improvements in draught excluders
Inventor: BRIGHT ROBERT GRANVILLE
IPC: E06B7/23
Filed: 1963-03-20
Abstract: 987,156. Draught excluders. BRIGHT MANUFACTURING CO. Ltd. June 28, 1963 [March 20, 1963], No. 11077/63. Heading E1J. A draught excluder comprises a resilient (e.g. rubber or plastics) strip 8 which is sprung over a flanged metal or other channel 3 secured to a door or window frame 2, the strip 8 having a lip 9 engaged by the door or window 1. The strip 8 has lips 11 engaging the frame 2.
Patent GB-732482-A (GB)
Title: Voltage regulator
IPC: G05F1/26
Filed: 1953-04-22
Abstract: 732,482. Automatic regulation. SIERRA ELECTRONIC CORPORATION. April 22, 1953 [May 10,1952], No. 11107/53. Class 38 (4). In Fig. 4 variations in voltage of an A.C. source 10 are detected by unbalance of a bridge circuit including lamps 18, 19 having a resistance which increases linearly with applied voltage. Any unbalance voltage from the bridge circuit is applied through a transformer 22 to a triode amplifier valve 25, the output of which is applied through a transformer 15 in series with the A.C. source 10 in such phase sense as to maintain a constant voltage supply to a load 13. The voltage maintained is adjustable by a potentiometer 31 which applies to the input of valve 25 a voltage of variable magnitude and phase sense derived through a transformer 30 from A.C. source 10. Amplifier gain is set by adjustment of the proportion of a cathode resistor 32 shunted by a condenser 33. Typical component values are given.
Patent GB-899054-A (GB)
Title: Polyurea copolymers and methods for their production
IPC: C08L75/02
Filed: 1960-03-29
Abstract: A process for the production of a polyurea copolymer comprises heating, under conditions under which polycondensation occurs, a mixture which comprises (1) urea, thiourea, an alkylene diurea or an alkylene dithiourea, (2) at least one alkylene diamine having a linear alkylene radical of at least six carbon atoms or the carbonate of such an alkylene diamine and (3) at least one alkylene diamine having at least one ether group (-O-) or thioether group (-S-) and wherein each alkylene radical has two to eight carbon atoms, or the carbonate of such an alkylene diamine, components (2) and (3) of the mixture being together present in an amount from 1 to 1,5 moles per mole of component (1).  The process may be effected by heating the mixture first at 80 DEG -130 DEG C. to produce two condensation products in which one molecule of urea is combined with one molecule of (2) or (3); heating these products at 130 DEG -240 DEG C. to produce intermediate polymers wherein both terminal radicals are amino radicals; and heating these polymers at 230 DEG -260 DEG C. under reduced pressure to polycondense them to the polyurea copolymer.  The reaction mixture is preferably dissolved in a solvent, for example, water, phenol or m-cresol.  The mixture also preferably contains a viscosity stabilizer such as an alkylmonoamide or an N-ocylalkylene diamine in which the alkyl or acyl radical has at least three carbon atoms, or a monobasic acid.  The copolymers can be melt-spun to give fibres.  In examples fibre-forming polymers are prepared by reacting (1) hexamethylene diamine, 5.51-diamino dipentyl ether, urea, and palmitic acid amide (molar ratio 70:32:100:1) in cresol; (2) octamethylene diamine, the carbonate of 4.41-diaminodibutyl ether, urea and palmitic acid (80:22:100:1) in water; (3) nonamethylene diamine, 3.51-diaminopropyl amyl ether, methylene diurea and palmitic acid in water; (4) octamethylene diamine, hexamethylene diamine, 5.51-diamino diamyl sulphide, urea and caproic acid; (5) hexamethylene diamine, ethylene glycol bis-(4-aminobutyl ether), urea and N-caproyl-nonamethylene diamine in phenol; (6) the carbonates of heptamethylene diamine and 4.41-diamino dibutyl ether, thiourea and palmitic acid amide; (7) octamethylene diamine, 5.51-diaminodiamyl sulphide, thiourea and pelargonic acid in phenol.ALSO:As a first stage in the preparation of polyureas (see Group IV (a)) there are heated together at 80 DEG C.-130 DEG C (1) urea, thiourea, an alkylene diurea or an alkylene dithiourea; (2) an alkylene diamine having at least six carbon atoms in the alkylene radical; and (3) an alkylene diamine having at least one interrupting ether group, thioether group or disulphide group, or a carbonate thereof, wherein each alkylene radical present has two to eight carbon atoms.  In this stage the condensation products obtained are mixtures having the formula H2N-R-NH-CO-NH2 (when, for example, urea is used) where R stands for an alkylene radical or an oxygen- or sulphur-containing alkylene radical.
Patent GB-1409695-A (GB)
Title: Conductive material
IPC: H01B1/00
Filed: 1974-03-13
Abstract: 1409695 Conductive vinyl-polysiloxane compositions GRUZINSKY NAUCHNO-ISSLEDOVATELSKY INSTITUT ENERGETIKI I GIDROTEKHNICHESKIKH SOORUZHENY 13 March 1974 11132/74 Heading C3T A temperature-dependent conductive composition comprises 100 p.b.w. of a polymethylvinyl-dimethyl-siloxane gum, 20-100 p.b.w. of an electrically conductive filler and 0À5-4 p.b.w. of a dialkylaminomethyl triethoxysilane. It is prepared by dissolving the gum in a non- polar solvent and adding the filler and silane to form a paste, which is then shaped and cured. In the examples lamp black (80 or 20 p.b.w.), then diethylaminomethyl triethoxysilane (4 or 1 p.b.w.), are added to 100 p.b.w. of a vinylcontaining polydimethylsiloxane gum in toluene (100 or 200 p.b.w.); the resultant pastes are rolled into sheets and heated at 100‹ C. for 2 hours, 120‹ C. for 2 hours, 150‹ C. for 4 hours and 200‹ C. for 4 hours to form cured conductive sheets. Uses.-Heating elements, coating surfaces.
Patent GB-113428-A (GB)
IPC: F01L1/44
Filed: 1917-08-02
Abstract: 113,428. Jouffret, H. V. J. Jan, 27, 1917, [Convention date]. Cam gears.-In controlling means fur the valves of motors, &c., wherein a cam a actuates a valvestem b through rollers on an intermediate part c, one of the rollers d<2> is mounted upon an eccentric c<20> on an axle c<2> which can be angularly adjusted to take up wear or play. The imtermediate part shown comprises two pivoted plates separated by a sleeve c around the eccentric c<20>. The axle c<2> has a toothed head c<200> which engages locking teeth c‹ on one of the plates. A simple plunger may take the place of the lever c.
Patent GB-329265-A (GB)
Title: Apparatus for lubricating the bearings for the rollers of conveyors
IPC: B65G45/08
Filed: 1929-02-13
Abstract: 329,265. Babcock & Wilcox, Ltd., and Lennox, A. Feb. 13, 1929. Force-feed lubricating .-Apparatus for lubricating the roller axles 23 of a conveyer 2 comprises a grease gun 1 carried by clamps 12 on pins 11 journaled in the arms 5 of a pair of bellcrank levers fulcrumed on fixed pins 8, the other arms 6 of the levers being connected by a link 16. A plate 13 arranged parallel to the gun has slots 15 engaging rollers carried on the pins 11, and has an arm 19 arranged at right-angles to the plate and carrying a roller 20 engaging a guideway 21 arranged parallel to the conveyer track 4. A trigger 22 is pivoted on horizontal pins 24 carried by the plate 13. A weight 33 connected by a cord 34 passing over a pulley 35 to the trigger normally maintains the apparatus in the position shown in Fig. 1, determined by a fixed stop 17 co-operating with one of the arms 5. In this position, the trigger is held horizontal in the path of the axles 23, which are provided with lubricating nipples 31, by a lug 28 on the underside of the trigger engaging a cam surface 29. During the movement of the conveyer in the direction of the arrow A, as a nipple 31 comes into alignment with the nozzle 32 of the gun, the trigger is engaged by the associated axle 23, whereby the gun is caused to move in a circular path without altering its perpendicularity to the direction of motion of the conveyer. Thus the nozzle 32 engages the nipple 31 and a charge of grease is ejected into the nipple. The trigger then engages a cam surface 37, whereby it is depressed clear of the axle, and the apparatus returns to its original position under the influence of the weight 33, the trigger being raised into the path of the succeeidng axle by the cam 29. The apparatus may be rendered inoperative by raising the trigger 22, which is adapted to be maintained in such position by a blade spring 25 engaging a toe 27. The grease in the gun is maintained under pressure by springs 42 acting on a piston rod 43. In a modification, the apparatus is arranged to lubricate alternate axles only. In this case, the cam 29 is omitted and a lever pivoted in a fixed bracket 41, Fig. 6, has an arm 38 movable in the path of the axles 23 and an arm 39 movable in the path of the lug 28. When the trigger 22 is depressed by the cam 37 and the apparatus is returned to its original position, the lug 28 depresses the arm 39, thus raising the arm 38. The oncoming axle passes over the trigger and depresses the arm 38, thereby raising the arm 39 so that the trigger is lifted into the path of the next axle.
Patent GB-326056-A (GB)
Title: Improvements in laminated springs
IPC: F16F1/24
Filed: 1929-04-11
Abstract: 326,056. M³ncheberg, E. Jaaks-. April 11. 1929. No Patent granted (Sealing fee not paid). Laminated springs.-Between the plates a of a laminated spring, metal interleaves b, adapted to the shape of the plates, are inserted, having cavities c in the upper and lower surfaces filled with lubricant d. These cavities are uniformly spaced in each surface, but those in the lower surface are displaced with regard to those in the upper surface.
Patent GB-569736-A (GB)
Title: Improvements in wire cutters
IPC: B23D29/02
Filed: 1943-07-12
Abstract: 569,736. Wire cutters. WALDMAN, A. July 12, 1943, No. 11299. [Class 61 (ii)] Wire-cutting pliers of pistol-like construction comprise a body 12 provided with a fixed cutter blade 22 and terminating in a downwardlydisposed fixed lever 18 and an operating lever 42 like a much enlarged trigger pivoted at 44 and having a loop handle 48 which lever has a cam and notch engagement 38, 40 with a slide bar 30 carrying the movable cutter 28, a spring 36 maintaining the parts in inoperative position.
Patent GB-677841-A (GB)
Title: Improvements in or relating to electrical control circuits embodying electron discharge tubes
Inventor: LUSTIG EDMUND
IPC: G08G1/09
Filed: 1949-04-29
Abstract: 677,841. Valve relay circuit. ELECTRIC & MUSICAL INDUSTRIES, Ltd. May 1, 1950 [April 29, 1949], No. 11387/49. Class 40 (vi). An electric control system comprises a capacitor having one plate connected to an electrode of an electron discharge tube and the other plate connected to one of a pair of contacts which when bridged close a charging circuit for the capacitor whereby a pulse is applied to render the discharge tube non-conducting, a sufficient potential being applied to render the tube conducting even if the charging circuit is closed. The Figure shows a control circuit for a talking traffic light in which when, for example, a pedestrian crossing light is illuminated suitable instructions recorded on a magnetic tape 1 are reproduced. The tape is moved by means of an electric motor energized over contacts 10 of relay 9 until at the end of the talking cycle a conducting portion 3 on the tape 1 bridges contacts 4, 5 and terminates the cycle. The conducting portion may be applied to the tape, as described in Specification 652,498, [Group XXXVIII]. Normally valves 6 and 17 are cut-off by the voltage applied to their cathodes from potentiometer 33, 34, 19 and capacitor 32 is charged via the normally closed contacts 29, 31. Contacts 10 are normally open so that the tape drawing motor (not shown) is stationary. When light 27 is energized a positive D.C. voltage is applied to the control grid of valve 17 which is rendered conducting, relay 28 is energized, opening contacts 29, 31 and closing contacts 29, 30. Capacitor 32 is thus discharged via resistors 35 and 13, a positive pulse is applied to the control grid of valve 6 which conducts and energizes relay 9. Contacts 10 close, thus energizing the tape drive motor and causing the talking cycle to commence. Contacts 11 also close, applying a standing bias to the control grid of valve 6 derived from its cathode voltage via potentiometer 12, 13 which renders valve 6 conducting when the positive pulse from capacitor 32 terminates. At the end of the talking cycle contacts 4, 5 are bridged by the conductive strip 3 on tape 1 so that capacitor 15 charges via the circuit between the control grid of valve 6 and earth. A negative pulse is thus applied to the control grid of valve 6, thus rendering the valve non-conductive so that relay 9 is released and contacts 10 open, breaking the motor energizing circuit and bringing the tape to rest. The opening of contacts 11 removes the standing bias from the control grid of valve 6 so that the valve remains cut-off after the cessation of the negative pulse from capacitor 15. When light 27 is de-energized valve 17 is cut-off and capacitor 32 is recharged via resistor 33. The charge acquired by capacitor 32 must be sufficiently large so that if when contacts 29, 30 are made contacts 4, 5 are still bridged by the conductive strip 3 so that charge is shared with capacitor 15, the pulse applied to the control grid of valve 6 is sufficient to render it conducting.
Patent GB-645905-A (GB)
Title: Improvements in or relating to electric impedance networks and to quadripoles for embodiment therein
IPC: H03H7/01
Filed: 1948-04-26
Abstract: 645,905. Magnetic structures. NAAMLOOZE VENNOOTSCHAP PHILIPS' GLOEILAMPENFABRIEKEN. April 26, 1948, No. 11455. Convention date, April 29, 1947. [Class 38 (ii)] [Also in Group XL (b)] A quadripole having the property that v 1 = - si 2  and v 2 =si 1  is produced by the use of a suitable medium to serve as a core or dielectric in the inductances or capacities of the network. The input voltage and current are v 1  and i 1  and the output v 2  and i 2 . Mathematical expressions are given which the properties of a particular medium must satisfy to produce this result. In one example the core of a transformer coupling is saturated by a weak constant magnetic field at right angles to the alternating field of the transformer coils. In another construction a suspension of magnetic material in a supersaturated solution of a material having a high electric dipole moment is used. This is placed in a container 3 in a gap in the core 6 of the output coil 7. Input terminals 1 are connected to electrodes 8 in the liquid. A quadripole thus constructed can be placed between two oscillatory circuits and shunted by a resistance to produce a band-pass filter.
Patent GB-662366-A (GB)
Title: Improvements in and relating to linear bearings
IPC: F16C29/04
Filed: 1949-04-29
Abstract: 662,366. Bearings. DEXTER & CO. (HIGH WYCOMBE), Ltd., and McVEY, G. April 29, 1949, No. 11498/49. Addition to 655,961. Class 12 (i). In the bearing described in the parent Specification, the carriers are provided with clamping means which engage the tracking rods at spaced intervals therealong. The carriers 5a, 5b, 7a, Fig. 1, have rectangular grooves in which the tracking rods 2, 3 are disposed in pairs and retained therein by wedge-headed bolts 30 located between the rods and extending through lateral holes 31 in the carriers, being held by nuts 32. The righthand fixing bolt 18 passes through an enlarged hole 19a which permits lateral movement of the carrier at this side for adjustment purposes. In a modification the pairs of rods 2, 3, Fig. 2, are in contact within substantially rectangular grooves 35, and are retained therein by spaced countersunk or wedge-headed screws 36 above and below the rods.
Patent GB-776607-A (GB)
Title: Improvements in or relating to structures for forming floors, roofs and the like
IPC: E04B5/40
Filed: 1954-04-22
Abstract: 776,607. Clip fastenings. MICKLETHWAITE, F. April 22, 1955 [April 22, 1954; Dec. 29, 1954], Nos. 11650/54 and 37593/54. Class 44. [Also in Group X] Clips 10a, which are used to connect ceiling boards 9 to a floor structure, clasp the lower ends of troughs 1b in the structure and carry U- shaped stirrups 12 which are connected to beams 11 to which the boards 9 are secured. In a modification, Figs. 6, 7, tongues 16 are cut out of the clips 10a for direct engagement with the ends of the beams, or ceiling boards. In a further modification the sides of the clips 10a have integral extensions which are doubled down so that their ends abut against the top surface of the beams. In the arrangement shown in Fig. 10 the ceiling 'boards are supported upon the flanges of T-section beams 19 which are suspended by strips 20 from members 22 looped around the clips 10a. The adjacent lower faces of the troughs 1b can be joined by members which resiliently engage the respective sides of the troughs, the enclosed cavities formed in this way being used to accommodate, e.g., electric wires.
Patent GB-710313-A (GB)
Title: Improvements relating to cyclotrons
IPC: H03B5/10
Filed: 1952-05-08
Abstract: 710,313. Particle accelerators. METROPOLITAN-VICKERS ELECTRICAL CO., Ltd. May 8, 1952 [May 31, 1951], No. 11683/52. Drawings to Specification. Class 39(1) [Also in Group XL(c)] In a cyclotron in which the dee electrodes are connected to a parallel-wire transmission line energized by an electron discharge tube oscillator, the oscillator is inductively coupled to the line through an anode loop and a feedback loop arranged between the line conductors so as to assure that the line oscillates in such a mode that the desired electric field is produced across the dees. The oscillator preferably comprises a pair of electron discharge tubes arranged for pushpull operation with their anodes connected together by the anode loop and their cathodes connected together by the feedback loop. The feedback loop may however be a grid loop. The loops are each shunted by a tuning condenser to enable the adjustment of the relative phases of the voltages induced in them. The loops are adjustable in position. Where the line conductors as well as the dees are within an evacuable enclosure, the loops are carried on conductors slidably extending through hermetic seals. A tuning bar is provided for the transmission line.
Patent GB-580218-A (GB)
Title: Improvements in and relating to screw thread grinding wheels
IPC: B23G5/00
Filed: 1944-07-20
Abstract: 580,218. Screw-thread grinding- wheels. COVENTRY GAUGE & TOOL CO., Ltd., and WAINWRIGHT, J. E. July 20, 1944, No. 11685. [Class 60] A multi-ribbed grinding-wheel for producing screw-threads has the ribs of the same pitch as that of the thread, the ribs c being of normal form whilst the ribs d which alternate with the ribs c have their flanks at a greater angle to the axis of the wheel. The crests of the ribs d may be of normal angle and height, Fig. 2, or may be left sharp and somewhat higher than those of the ribs c, Fig. 3. In the formation of the wheel, the dressing is performed in four strokes, namely with the tool (1) entering the wheel at an angle to the axis thereof at the normal flank angle, (2) leaving the wheel at a greater angle to the axis, (3) re-entering the wheel at the same increased angle, and (4) leaving the wheel at the normal flank angle.
Patent GB-496460-A (GB)
Title: Improvements in and relating to grips for ropes, wires and the like
IPC: D06F53/04
Filed: 1938-04-19
Abstract: 496,460. Rope grips. GEBBS, E. C. April 19, 1938, No. 11745. [Class 78 (ii)] A V-shaped member 10 is provided with arms 11, 12 on the inner faces of which are slidably mounted rope-gripping members 24, 25 engaged by an annular member 15 surrounding the arms. When tension is applied to the rope, the members 24, 25 and 15 are displaced, and the arms 11, 12 are forced together to grip the rope more tightly. The movement of the member 15 between the stops 17, 18 is facilitated by the provision of hand grips 20 for the operator. The opposed faces of the members 24, 25 may be serrated. The head of the member 10 is provided with hooks 30, 31 for engagement with a fixed support such as a post.