baber/WOPTO huggingface dataset:
Patent GB-381136-A (GB)
Title: Improvements in or relating to loop takers for sewing machines
IPC: D05B57/14
Filed: 1932-06-14
Abstract: 381,136. Sewing-machines. GONYK, I., 64, Rennweg, Vienna. June 14, 1932, No. 16769. Convention date, June 17, 1931. [Class 112.] Lock-stitching by shuttles.-A member, such as a pin, arranged in the path of the beak of an oscillating shuttle, engages the same resiliently after the needle thread has been engaged, to retain the loop in the same. In the construction shown, a shuttle 8 carrying a stationary bobbin rests on a seat 8a in a driver 7, relative to which rotation is prevented by abutting the bevelled ends of an upstanding circular rib 9 on the carrier against the outer annular part of the shuttle, space being provided for the passage of the thread. The driver 7 is oscillated by a pinion 4 in mesh with a toothed segment 5 carried by a rocking lever 6. The outer surface 15 of the shuttle 8 moves in a recess 16 in a supporting casing 17 part of the recess being of greater diameter for the passage of the thread. A pin 19 located on the casing 17 in front of the end of the enlarged part of the recess 16 extends towards the shuttle 8 into a groove 14 formed on the underside of the shuttle and of increasing depth towards the hook 13, and is pressed upwards by a spring 23 to engage the groove 14 and retain the thread. Bores 30 in a cover 24 engaged by pins 31 on the casing 17 locate a detachable cover in position. It is locked by turnscrews 26 on the casing, which are engaged in slots or bores 27 in the cover and turned slightly to place their segmental heads across the slots 27.
Patent GB-892903-A (GB)
Title: Process and apparatus for the manufacture of fibres from glass or other thermoplastic materials
IPC: C03B37/02
Filed: 1960-05-12
Abstract: 892,903. Glass fibres. COMPAGNIE DE SAINT-GOBAIN. May 12, 1960 [May 29, 1959], No. 16773/60. Class 56. Fibres are drawn, from tips 3 at the bottom of a container 1 of molten material 2, through a single casing 4 which encloses the tips and is completely filled with a moving gaseous fluid of constant or controlled composition such as water vapour between 150C. and 200C. fed from blowers 7, 8. The casing shown has a door 5. The glass may be heated by the passage of an electric current.
Patent GB-396208-A (GB)
Title: Improvements in or relating to electric signs
IPC: G09F7/08
Filed: 1932-06-14
Abstract: 396,208. Signs. SOESMAN, A. A., 12, Talstrasse, Zurich, Switzerland. June 14, 1932, No. 16820. [Class 3 (ii).] In a sign wherein characters, consisting of electric incandescent lamps borne by a carrier, are detachably mounted on a base comprising a strip of insulating material, the strip and conductor bars applied to it provide grooves for projections on the carriers. As shown in Fig. 2, holders 7 for incandescent lamps 8 are mounted on a metal plate 1 shaped as a letter, the plate being provided with conductor lugs 2, 11 engaging grooves formed between the strip 3 of insulating material and conductor bars 4, 5 secured thereto by screws 6. The strip 3 and bars 4, 5 may be housed in a support 13, Fig. 4. A number of strips 3 and supports 13 may be connected end-to-end to form wording of any desired length, the bars 4, 5 being rolled into loops 19 which are open at one end and provided with pins 20 at the other, and the supports 13 each having a pin 16 and a socket at opposite ends. Lamps may be mounted on the strip 3.
Patent GB-1437062-A (GB)
Title: Shaped heat insulating articles
IPC: C04B35/66
Filed: 1974-04-18
Abstract: 1437062 Heat-insulating article G NORTON 14 April 1975 [18 April 1974] 16945/74 Heading C3N [Also in Divisions C5 and D2] A shaped heat-insulating article for forming a molten metal-contacting lining for metallurgical moulds comprises a granular and/or fibrous refractory material which has a high infra-red and ultra-violet radiation opacity, an exothermic mixture of a fuel and an oxidizing agent, and a binder, and having a density below 0À7 g./cc. The granular refractory material may be alumina, magnesia, chromite, titania, or zirconia, or a mixture thereof. The fibrous refractory material may be an aluminosilicate, zircon, calcium silicate or alumina fibre, or a mixture thereof. The fuel may be aluminium powder, or ferro-silicon, silicon, magnesium, or zirconium, or a mixture thereof. The oxidizing agent may be barium sulphate, barium nitrate, iron oxide, manganese dioxide, or a mixture thereof. The binder may be a phenolic resin, urea-resin, furan resin, or starch together with an inorganic binder e.g. colloidal silica sol, colloidal aluminia, or mono aluminium orthophosphate. The composition of which the article is formed may also comprise a fluoride (e.g. cryolite, fluorospar, and/or sodium-silocofluoride) as a catalyst for the exothermic reaction. The lining may be formed by dewatering an aqueous slurry of the appropriate composition on a porous former of the required shape and drying the shape so formed. A dispersing agent, e.g. aluminium sulphate or ferric chloride may be used in the preparation of the slurry. The article may be in the form of a board, slab, or sleeve for use in lining hot tops and risers in foundry moulds.
Patent GB-1490618-A (GB)
Title: Guard comprising plastics sheet material for the guarding of machines and the like
IPC: F16P1/02
Filed: 1976-05-14
Abstract: 1490618 Machinery guards H D SHARMAN 14 May 1976 [24 April 1975] 16950/75 Heading F2J [Also in Division E2] A machine guard 10, e.g. for inhibiting the movement of flying stones from an agricultural mower 12, comprises sheet plastics covers 10A, 10B, 10C which are attached to a rigid frame rod on bar 14 of the mower 12 by straps 16 looped, i.e. wrapped over the bar 14 and having one or more holes which are aligned with corresponding holes in the sheet plastics covers 10A, 10B, 10C and through which holes barbed press studs are press-fitted. The straps 16 may be of plastics sheet material separate from the sheet plastics cover as in 10A of Fig. 1, and in Fig. 2, or may be integral with the cover as in 10B and 10C of Fig. 1.
Patent GB-497359-A (GB)
Title: Improvements in vacuum electric tube devices
IPC: H01J21/20
Filed: 1937-06-18
Abstract: 497,359. Thermionic valves. DODDS, J. M., and METROPOLITAN - VICKERS ELECTRICAL CO., Ltd. June 18, 1937, No. 16967. [Class 39 (i)] A push-pull valve, which comprises a cathode on each side of which is arranged a control grid, screen grid and an anode, has a boxlike central metal envelope member through which pass laterally the conducting supports for the cathode and the control grids and also carries the screen grids so that in conjunction therewith the screening between the anodes and the control grids is completed. A brass or copper box-like ring 1 has demountably sealed thereto tubular insulators 2, 3 which are sealed demountably by plates 4. The cathode 6 which consists of a mesh, as described in Specification 478,373, or of parallel-connected filaments is clamped and supported from the member 1 in the manner described in Specification 497,362. The control grids 7, 8 consist, as described in Specification 497,361, of mesh windows carried in copper or brass rings 26 which are supported from the member 1 by thick copper or brass strips 27. Copper or brass cooling tubes 30 may be soldered to the rings 26 which are drilled so that the wires of the control grid may be threaded therethrough. An insulating or metal bar extends between, and is parallel to, the members 27 to which it is screwed by insulating pegs ; the bar is screwed to the member 1. The screen grids 9, 10 are carried in rings 31 having cylindrical extensions 32 which fit into recesses in the member 1 ; flanges 33 increase the screening. A flange on that side of the ring 31 facing the control grid is undercut at its outer periphery and is pro-. vided with two sets of cuts at right-angles to form pegs on which the grid wire is wound. Each anode has a conical face 39, is screwed into the plate 4 and is closed by a plate 38. Cooling fluid is supplied to a bore 36 and is expelled from the annular space between the anode and the insulator 3. Flanged rings 41 protect the seal. The member 1 is provided with cooling channels 42 and an evacuating conduit. As described in Specification 497,360, the valve may be provided with external circuits and screening boxes. The grids 9, 10 may form suppressor grids in which case the member 1 is maintained at earth potential and a separate lead is provided for screen grids. The leads of the cathode and of the control grids may be arranged at right-angles to one another. Specification 458,702 also is referred to.
Patent GB-497586-A (GB)
Title: Improvements in or relating to reducing molten materials to a fine filamentary form
IPC: B22F9/10
Filed: 1937-06-18
Abstract: 497,586. Spraying fusible material. RICHARDSON CO. June 18, 1937, No. 17028. Convention date, Aug. 14, 1936. [Class 69 (iii)] [Also in Groups II and XXII] A container for use in reducing molten materials, e.g. metals, to a fine filamentary form comprises two parts clamped together, the molten material being forced out by centrifugal or other pressure through very fine passageways formed by indentations made, e.g. by knurling, in the edge of one or both of the parts of the container and /or in one or more faces of a member or members clamped between the parts. The apparatus shown in Fig. 1, which may be used in making finely divided lead or lead oxide as described in Specification 497,610, comprises a melting kettle 3 divided, by means of a wall 5 with an aperture 6, into two parts, one in which the melting takes place, and the other from which the molten metal is discharged as required by a plug valve 10, into the dispersing container. The supply to the container may also be regulated by a float 23 having a neck 24 which enters the supply pipe. This container, which is rotated by a shaft 16, is formed of two parts 20, 21, bolted together at 22. The parts are made thinner adjacent the contacting edges as shown at 30, 31 in Fig. 2, and in one or both of the edges indentations are made to form passageways when the edges are in contact. In the form of container shown in Fig. 3, the passageways are formed by the use of knurled rings or spacers, for example, by indentations in the edges of ribs projecting from rings 38, 39 which, together with a spacer ring 40, are clamped between the two parts of the container. The material forced through the passageways is collected in the form shown, in a bath of water in an annular container 25 which is heated by burners 27, the material being removed periodically by means of a device 29.
Patent GB-594931-A (GB)
Title: Improvements relating to electric current rectifiers of the selenium type
IPC: H01L21/10
Filed: 1945-07-04
Abstract: An alloy containing 53 parts of bismuth, 23 parts of tin and 24 parts of cadmium, preferably free from lead, is used as the counter-electrode of a selenium rectifier.
Patent GB-458404-A (GB)
Title: Improvements in or relating to electrical multiple pin plugs and in particular electric wall plugs
IPC: H01R13/502
Filed: 1935-06-13
Abstract: 458,404. Two-part couplings. COOK, C. R., Chesworth, Horsham, Sussex. June 13, 1935, No. 17081. [Class 38 (i)] [See also Group V] A plug member of the kind having a terminal block 1a on which screws a cap 2 is provided with an annular series of notches 3 on the inside of the cap to coact as a ratchet with a projecting part of the terminal block, e.g. the ends 4 of the plugs 1, to prevent unscrewing of the cap. The plug member may be of the types described in Specifications 403,448 and 457,113. In moulding the cap the tool inserted therein is unscrewed while hot, the elasticity and shrinkage of the moulding composition enabling the notches to pass over their counterpart on the tool which can thus be of integral construction.
Patent GB-539923-A (GB)
Title: Improvements in or relating to file receptacle
IPC: A47B63/02
Filed: 1940-12-02
Abstract: 539,923. Filing papers. ART METAL CONSTRUCTION CO., and JONES, J. R. Dec. 2, 1940. No. 17176. [Class 146 (i)] A filing drawer, tray &c. has a card-index divider 12 with a foot 13 having lugs 21 entering slots 20 in the side walls 17 of a channel member 16 removably secured in the bottom groove 11 of the drawer &c. Member 16 has down-turned walls 18 sprung into the groove 11 and has narrow slits 19 communicating with the V-shaped slots 20 so that the dividers can pivot on the base of the slots and be withdrawn or replaced only when vertical. The foot 13 is spot-welded to the divider 12 which has strengthening ribs 14, 15. The top edge of the divider may be doubled over to retain felt pads resting on the upper edges of the side walls to support the divider when inclined.
Patent GB-738220-A (GB)
Title: Improvements in or relating to conveyors comprising a series of articulated troughs
IPC: B65G39/20
Filed: 1953-06-22
Abstract: 738,220. Endless-chain conveyers. UNTERAGE-MASCHINENBAU GES. June 22, 1953 [June 23, 1952; Dec. 6, 1952], No. 17176/53. Class 78 (1). In an articulated trough conveyer adjacent troughs 1, 2, Fig. 1, are connected by a member 3, the base of which comprises curved members 3<SP>1</SP>, 3<SP>11</SP> welded at their centres and shaped to form jaws 6<SP>1</SP>, 6<SP>11</SP> to receive the trough bottoms. Brackets 13, Fig. 2, on the members 3 have downwardly-extending pegs 14 which pass through a horizontal link 4 of the chain and are secured by pins 15. In a modification, Fig. 10, a bolt 17 passed through the bracket 13 holds the link 4 against it. In another modification the bracket has a horizontal slot to receive the link and a pin for retaining it. The chain 4 is secured to the axles 21, Fig. 3, of the supporting rollers, which are welded to the members 3, by a strap 23 passed over and secured to an upstanding pin 22. In a modification the axle 25, Fig. 11, is forked and its free ends are inserted between the limbs of the member 9, Fig. 8, and held by pins 26. In this construction the member 9 replaces the curved member 3<SP>11</SP>, Fig. 1, and the upper member 11 is formed as a resilient plate. The members 9, 11 are connected by a rivet 10. In a modification, the ends of the bottoms of the troughs are forked, forks being provided at each end of alternate troughs or at one end of each trough. In another modification, Fig. 18, the troughs are driven by a central chain and the conveyer is provided with guide rollers 52 as well as track rollers 51.
Patent GB-1133294-A (GB)
Title: Polymerisation of pivalolactone
Inventor: DER FRANCISCUS JOHANNES FREDER
IPC: C08G63/82
Filed: 1967-04-14
Abstract: 1,133,294. Polymerizing lactones. SHELL INTERNATIONALE RESEARCH MAATSCHAPPIJ N.V. 14 April, 1967, No. 17197/67. Heading C3R. Pivalolactone is polymerized in a liquid hydrocarbon diluent having a boiling point below 300‹ C. and in the presence of a solid carboxylate anion-containing initiator which is substantially insoluble in the diluent, is free of active hydrogen and is either (A) a betaine having a molecular weight below 10,000 or (B) a " living " prepolymer which may or not be a betaine, has a molecular weight of 200 to 10,000 and which has been obtained by reaction of a beta-lactone with a nucleophilic agent in a molar ratio of between 20 : 1 and 1 : 40. Up to 50 mol per cent of the pivalolactone may be replaced by anotherbeta-lactone. Specified for (A) are the inner salts of betaine, (2-carboxyethyl)- pyridinium, (1 - carboxyundecyl) - trimethylammonium, (1 - carboxyethyl) - tributylphosphonium, (carboxymethyl) - dimethylsulphonium and 3 - carboxy - 1 - methylpyridinium. Specified for (B) are the reaction products of beta-lactones (especially pivalolactone) with tertiary amines, phosphines, arsines or stibines: quaternary ammonium phosphonium, arsonium or stibonium salts or tertiary sulphonium salts of inorganic or organic acids (e.g. iodides or laurates); an alkali metal salt of an inorganic or organic acid (e.g. bromides, iodides, acetates, pivalates or stearates), phenolates, thiophenolates, alcoholates or mercaptides; alkali metal alkyls or aryls; or organic sulphides or sulphoxides. Polymerization of the pivalolactone is preferably carried out at 0‹ to 150‹C. using 0À01 to 10% of the initiator and a ratio of monomer to hydrocarbon diluent of 0À2 to 1À0.
Patent GB-679313-A (GB)
Title: An improved time-piece movement automatically re-wound by means of a movable mass
IPC: G04B5/12
Filed: 1950-07-10
Abstract: 679,313. Timepieces. MONTRES ROLEX SOC. ANON. July 10, 1950 [July 16, 1949], No. 17238/50. Class 139 A self-winding timepiece comprises two masses mounted so as to be able to effect complete revolutions, each mass co-operating with a wheel which forms part of the winding train. The masses, 9a, 9b, Fig. 2, are respectivtly carried by arms 8a, 8b, Figs 1 and 2, secured to pinions 7a, 7b carried by shafts 6a, 6b respectively. The .shafts 6a, 6b are rotatable in bearings 5. The pinions 7a, 7b both mesh with a wheel 12 rigid with a pinion 13 which drives a wheel 14 rigid with the barrel ratchet 15. The masses are in a cage 1 fixed to the barrel bridge 2.
Patent GB-1149616-A (GB)
Title: Improvements relating to impulse turbines
IPC: F01D11/02
Filed: 1966-04-20
Abstract: 1,149,616. Boundary layer control. ESCHER WYSS A.G. 20 April, 1966 [22 April, 1965], No. 17277/66. Heading F2R. [Also in Division F1] To improve the efficiency of a gas or steam turbine of impulse type having guide blades 11 directing working fluid on to rotor blades 21, the circumferentially extending surfaces SW 2i  and SW 2a  extending between the rotor blade roots and tips to define the flow passage through the rotor 20 are of radii with respect to the corresponding surfaces SW 1i  and SW 1a  of the guide blade ring 10 such as to extend into the boundary layer flow zones of the fluid delivered by the guide blades. The radial offset h, Fig. 3, between the adjacent rotor and guide ring surfaces is between 0À5 and 2 times where # 0  is the thickness of the boundary layer adjacent the guide ring surfaces, #S is the axial gap between the guide ring 10 and rotor 20 and α 1  is the angle between the direction of fluid flow at the guide ring outlet and a plane normal to the rotational axis of the turbine. The inlet edges 200, 220 of the rotor are rounded to improve the flow, the radius of curvature r being # h.
Patent GB-499644-A (GB)
Title: Improvements relating to automatic steering systems for ships
IPC: G05D1/02
Filed: 1937-06-22
Abstract: 499,644. Automatic control systems. SPERRY GYROSCOPE CO., Ltd., SAUL, G. C., HARDING, W. G., and NISBET, R. H. June 22,1937, No. 17384. [Class 38 (iv)] Steering.- A manually controlled electric steering system may be controlled by an automatic pilot located, together with change-over switching means, entirely in the neighbourhood of the steering wheel. The rudder motor 3, Fig. 1, is energized by a Ward Leonard generator 4 excited by the unbalance produced by steering upon a Wheatstone bridge comprising a sending or steering wheel potentiometer 12 and a rudder controlled potentiometer 13, and an auxiliary sending potentiometer 12 operated by a standard form of automatic pilot (including for example a compass repeating motor 15) may be substituted by operating a change-over switch 115. The auxiliary potentiometer may be replaced by a dummy potentiometer consisting of contacts connected in sequence to tapping points on the steering wheel potentiometer through a multiple contact switch and multicore cable permitting isolation. The slider or contact arm 101 of the auxiliary or of the dummy potentiometer may be operated by servomotor, such as 27, and the system may include means, such as 118, for manual control during automatic steering ; limit switches 30, 31 are jointly adjustable to determine the limiting rate of turning. The repeat back to the compass actuated controller of the automatic pilot is not from the rudder itself but from the slider of the auxiliary potentiometer and in order to damp the oscillation of the ship a lost motion connection 34 is introduced in this mechanism which effects a reduction of rudder angle during return of the ship to her course; a change speed gear box 36 permits adjustment of rudder ratio. The auxiliary controller may comprise a set of studs in a circular arc and two trolly contacts directly actuated by a compass repeater motor ; two trollys are electrically connected together and arranged so that the circuit is always maintained. Friction is thus reduced and the servomotor 27 may be omitted. In a further modification the repeater motor may turn a shaft with cams each operating in correct sequence finger contacts connecting with the studs of the sending potentiometer ; in one form each cam has a projection to effect a brief circuit closure and in another the cams are eccentrics and each operates upon two switches in series connection and so placed as to effect a brief closure of the circuit. In a further modification the connections may be made by electric relays operated by a controller turned by the repeater motor. The Specification describes also the initial rudder ' arrangements forming the subject-matter of Specification 501,512.
Patent GB-125888-A (GB)
Title: Improvements in Portable Tools for Cutting Key Ways in Shafts and for similar purposes.
Inventor: HUNTER SUMMERS
IPC: B23D3/02
Filed: 1918-10-28
Abstract: 125,888. Hunter, S. Oct. 28, 1918. Milling-machines.-In a portable machine for cutting keyways &c. in shafts &c., the cutter is rotated continuously and fed intermittingly while it is reciprocated by a link connecting the bed to a crank-pin on a driven wheel carried by the cutter slide. The cutter spindle 5 is carried by a slide adapted to move on a bed 1 which is clamped to the work. A link 9 is pivoted at one end to a bracket 11 of the bed 1 and at the other to any desired point in a slot 13a of a disk 13. The disk is driven through eccentric and ordinary gearing 22, 19 from a worm 14 on the driving shaft 4 so that the slide is reciprocated. The spindle 5 is fed axially by a nut 33 which is rotated by ratchet gear 32 and slotted levers 29, 25 connected together by an adjustable bolt 27, the lever 25 being oscillated by a crank-pin 24.
Patent GB-194224-A (GB)
Title: Improvements in and relating to means for facilitating alighting from automobiles and other vehicles
IPC: H01H13/16
Filed: 1922-06-26
Abstract: 194,224. Dobschutz, W. June 26, 1922. Mats.-A fitting for the running board or like part of a motor-car or other vehicle comprises a mat or scraper adapted when depressed by a person stepping out of the vehicle, to close the circuit of an electric lamp 'for lighting up the pavement or ground near the step. As shown, the fitting consists of a frame 3, 2 with a hinged member 8, 9 of grid form which constitutes the scraper, and box-like portions 4, 6 which contain the circuit-closing contacts 14, 15 and the lamp and reflector 12. The open base 2 of the frame is secured to the running board 1. The back member 3 of the frame may be separate from the base and adapted to be! set further back to suit a wider footboard.
Patent GB-356277-A (GB)
Title: Improved manufacture of paper
Inventor: NATHANSOHN ALEXANDER
IPC: D21H17/14
Filed: 1930-06-06
Abstract: Paper impermeable to water is obtained by treating the pulp or paper with weak solutions or emulsions of derivatives such as chlorides or acid anhydrides of acids of high molecular weight which have an esterifying action on the cellulose.  The process can be applied to paper which has been treated with sulphuric acid, or zinc chloride, or subjected to a colouring process.  The excess of the esterifying agent can be washed out after treatment. When an emulsion is used, the known processes for making fatty emulsions are employed, and this form can be used for the treatment of wet pulp at any stage during the manufacture of paper or board.  In examples the use of a hot 2-5 per cent solution of stearic anhydride, and, for reactive papers such as a good filter paper, a 0,1-2 per cent solution of stearic or palmitic anhydride are described.  Specification 269,530, [Class 2 (ii), Cellulose &c.], is referred to.