baber/WOPTO huggingface dataset:
Patent GB-148297-A (GB)
Title: Mechanical starter for phonograph motors
IPC: G11B17/02
Filed: 1920-07-09
Abstract: 148,297. Sibley, J. T. April 24, 1919, [Convention date]. Driving - arrangements. -Phonograph motors, of the kind comprising a series of magnets energized in turn by current supplied through a distributor engaged by a rotary brush, are started by an initial swinging movement of the tone-arm which through ratchet gear gives a rotary impulse to the turntable spindle. As shown in plan in Fig. 1, the tone-arm 1 is connected to a segment 3 carrying a pawl 7 engaging ratchet teeth 6 on a bar 5. This bar is guided by a strap 18 and by a stop 26 and is held in position by a spring 23. A fixed pin 22 engages in a shaped slot 19 in the bar 5. At one end the bar carries a pivoted pawl 12 in engagement with a ratchet wheel 4 on the turntable spindle 2, the movement of the pawl about its pivot 13 being limited by a stop 15 and a spring 16 bearing against a stop 17. To start the motor, the tonearm is swung from position A to position B, the pawl 7 driving forward the bar 5 and causing the pawl 12 to rotate the spindle 2. The bar 5 then moves away from the pawl 7 owing to the action of the bevel surface 20 on the pin 22, and the bar is returned by the spring 23.
Patent GB-1503361-A (GB)
Title: Dentures
IPC: A61C13/113
Filed: 1975-05-13
Abstract: 1503361 Impression trays ENGELHARD MINERALS & CHEMICALS CORP 13 May 1975 [14 May 1974] 20208/75 Heading A5R An impression tray 26, Fig. 2, approximating in shape to the gum surface of a dental patient has an arcuate opening therethrough, a removable set of teeth 22 depending from a flange 24 and protruding through the opening. An impression of the patient's gum surfaces is first made, a reverser model of the impression being moulded. A wax sheet spacer is softened and placed over the model, the tray, made of wax, also being softened and placed over the spacer and model. Pressure is then applied to the tray so that it conforms generally to the shape of the model and therefore the patients gums. The tray is removed and the spacer discarded. Then some mixed "hard" dental acrylic resin is placed in the tray. A fitted woven acrylic shim previously soaked in acrylic monomer is draped over the reverse model, some "hard" resin being applied over the surface of the shim. The shim and model are applied with pressure to the resin-containing tray, the model being removed when the shim is in place in the tray. "Semirigid" resin is poured over the shim and the tray is placed into the patient's mouth against the appropriate gum and held in position to allow the resin to cure and set, the tray then being removed, and allowed to stand for full curing of the resin. The tray is soaked in warm water whereupon the wax portion of the tray is removed from the resin leaving the flange and teeth embedded in the resin to form the denture. The tray shown in Fig. 2 is for use in forming an upper denture and has a palate portion 34, a tray for use in forming a lower denture being shown in Fig. 3.
Patent GB-1443654-A (GB)
Title: Drilling fluids containing polyethyleneoxy phosphate esters
IPC: C09K8/04
Filed: 1974-05-08
Abstract: 1443654 Fluids for drilling wells TEXACO DEVELOPMENT CORP 8 May 1974 [25 May 1973] 20268/74 Heading C5F Aqueous drilling fluid comprises at least one dispersant, hydratable clayey material, weighting agent and/or water loss improving agent and an aqueous phase containing a minor amount of at least one phosphate compound selected from (A) compounds of the Formula I wherein n is from 4 to 50, R is a C 8-12  alkyl group, R<SP>a</SP> is hydrogen or a C 8-12  alkyl group, R<SP>b</SP> is hydrogen, a compound of the Formula III or M, M is an alkali metal or ammonium radical, and R<SP>c</SP> is hydrogen or M, and (B) compounds of the Formula II wherein n is from 4 to 50, R<SP>d</SP> is a (C 8-20  alkyl radical, R<SP>e</SP> is hydrogen, R<SP>d</SP>(OCH 2 CH 2 ) n -, or M, and R<SP>f</SP> is hydrogen or M. The drilling fluid suitably contains 0À01-25 wt. per cent of the phosphate compound. The fluid exemplified can have sodium chloride brine as the aqueous phase and can also comprise ferrochromelignosulphonate, attapulgite clay, calcium hydroxide and/or barite. The phosphate compounds used in the examples are (a) a mixture of compounds of the Formula II wherein the alkyl group R<SP>d</SP> is derived from C 12-16  alcohols, and n is an average of 7, (b) a compound of the Formula IV (c) a compound of the Formula V and (d) a compound of the Formula VI
Patent GB-1315862-A (GB)
Title: Gas discharge display device
IPC: H01J11/18
Filed: 1970-04-28
Abstract: 1315862 Re-drawing glass OWENSILLINOIS Inc 28 April 1970 [28 April 1969] 20278/70 Heading C1M [Also in Division H1] A gas discharge display device which includes a plurality of elongate members each forming at least a part of a boundary accommodating a gaseous medium (see Division H1) is produced by forming a glass structure of a first size from a plurality of elongate members arranged in side-by-side relationship, softening the structure by passing it through a heating zone and applying a tensile force to the structure along its longitudinal axis so as to uniformly attenuate the structure to form an elongate glass structure similar to, but smaller than the first structure, the conductor or conductors of the deviee being added prior to or subsequent to the attenuation of the structure. Alternatively each elongate member may be attenuated individually and the members then assembled to form a device. The attenuation of the structure may be carried out using a re-draw apparatus comprising a feed mechanism 150, preheat infra-red lamps 151, a multizone controllable furnace 152 and a drawing mechanism 153. A glass containing in weight per cent SiO 2  80À5; B 2 O 3  12À9; Na 2 O 3À8; K 2 O 2À4 and Al 2 O 3  2À2 is disclosed.
Patent GB-588146-A (GB)
Title: Improvements in or relating to apparatus for the manufacture of bricks or blocks for use in building construction
IPC: B28B23/00
Filed: 1944-10-19
Abstract: 588,146. Building blocks. RUDDLE, A. W. Oct. 19, 1944, No. 20286. Drawings to Specification. [Class 87 (i)] [Also in Group V] A concrete building block comprises a wooden insert projecting somewhat from one face. The insert may be T-shaped as seen when looking towards the face from which it projects.
Patent GB-251820-A (GB)
Title: Improvements in or relating to the projection of kinematograph or still pictures
IPC: G03B33/08
Filed: 1925-08-12
Abstract: 251,820. Alstrup, C., and Jensen, V. Aug. 12, 1925. Colour kinematograph<y>.-Ordinary positive images are each projected by a beam the colour of which is successively changed. the colour periods and the periods of change being so short as to be undetected by the eye. As shown, projection is effected through filters 9 - - 9<c>, respectively colourless, red, yellow, and blue, the being carried by a disc 8 which bears two sets of filters and is rotated by maltese cross gearing 6, 7 through a flexible shaft 5 from the pin wheel 4 of the maltese cross mechanism feeding the film 1. Alternatively, the beam may be coloured by the use of a series of coloured objectives moved in the same manner as the filters, or by means of reflectors actuated mechanically or electrically.
Patent GB-500856-A (GB)
Title: Improvements in and relating to the mounting of guns in aeroplane wings and other hollow bodies
IPC: F41A27/10
Filed: 1938-07-08
Abstract: 500,856. Gun mountings. MARTIN, J., and MARTIN-BAKER AIRCRAFT CO., Ltd. July 8, 1938, No. 20333. [Classes 92 (i) and 92 (ii)] Relates to means in the form of a readily removable sealed blast tube 4, as described in Specification 500,836, for shielding the interior of an aeroplane wing 1, or other hollow body subjected to wind pressure, from air pressure or gases around a gun mounted in the body. According to the invention, a readily removable nose ring 14 which supports the part-spherical joint 9a at the front end of the Mast tube is , provided with means such as a bayonet-joint 10, 11 for engaging and locking the nose ring in the tubular support 6 fixed to the wing or other body. Further, the nose ring may be replaced by a closure as shown in Fig. 4 when the gun is out of use. and a rubber or like plug 28, Fig. 5, may be used to close the front of the nose ring to exclude dust, the plug being blown out when the gun is fired. The closure, Fig. 4, is in two sliding spring-pressed parts and bears at 31 against a stop ring 32 on the support 6. The front part 33 of the closure, which is slidable against the action of a spring 37 in the rear part, is provided with a bayonetslot x for locking the closure to the puts 10 on the support 6.
Patent GB-148442-A (GB)
Title: Improvements in sea planes and the like
IPC: B64F1/22
Filed: 1920-07-10
Abstract: 148,442. Zeppelin-Werke Ges. June 21, 1918, [Convention date]. Void [Published under Sect. 91 of the Act]. Boats adapted to run on land.-For transferring a seaplane from water to land, or vice versa, wheeled trollies provided with floats are brought between the floats of the seaplane and secured to the supporting-stays of the machine floats. Fig. 2 shows a plan of a seaplane in which two trollies comprising lattice girders J1, J2 provided with wheels B and floats A are floated between the floats S of the machine. The two trollies are then coupled rigidly or flexibly by members V and are coupled to the stays of the floats S by links.
Patent GB-457529-A (GB)
Title: Improvements in mercury switches
IPC: H01H29/18
Filed: 1936-07-23
Abstract: 457,529. Mercury switches. BURGESS, A. F., 10, New Court, Lincoln's Inn, London.- (Adlake Co. ; 319, West Ontario Street, Chicago, U.S.A.) July 23, 1936, No. 20416. [Class 38 (v)] A mercury switch comprises a glass envelope 20 having sealed into it three electrodes 22, 23, 24, the last two being surrounded by glass sleeves except for portions 28, 30 at their upper ends. A magnetic plunger 31 having a slot 39 for the passage of the electrode 24 carries at its upper end an inverted gas-tight cap 38 arranged above the electrode 23. The switch is mounted on an operating electromagnet 40, 42 having pole sleeves 43, 44 providing an air gap 45. In the position shown, the magnet is de-energized and the plunger 31 is floating, its upward movement being limited by a buffer spring 34. In this position, mercury connects electrodes 22, 23. When the magnet is energized, the plunger is drawn downwards and the cap 38 by means of the enclosed gas moves mercury away from electrode 23 to break the circuit. Further movement of the plunger causes mercury outside the cap 38 to rise and cover electrode 24 thus completing a second circuit. In a modification, the plunger is raised by energizing the magnet.
Patent GB-630341-A (GB)
Title: Improvements in devices for supporting and feeding bar-stock in screw-cutting and like machine-tools
IPC: B23B13/08
Filed: 1947-07-29
Abstract: 630,341. Lathe details. FABRIQUE SUISSE DE VIS ET BOULONS SOC. ANON. July 29, 1947, No. 20495. Convention date, Aug. 15, 1940. [Class 83 (iii)] A device for supporting and feeding barstock in a screw-cutting or like machine comprises two tubes, an inner one to receive a stock-feeding member held in an outer tube without touching it, the space between the tubes being packed with a sound-proof substance. The inner and outer tubes may both be of circular cross-section or alternatively the inner, 10, Fig. 4, may be in the form of a figure eight. The lower portion of this tube supports the bar-stock (not shown), and the feed-member 22, which abuts the end of the bar-stock, while the upper portion supports the cable 24 and the connection 23 to the feedmember, the latter sliding along a slot 20 between the portions. The space 17 between the inner and outer tubes is packed with dry sand or other sound-damping substance and the ends are closed by rubber or like discs 21 with shaped holes to take the inner tube.
Patent GB-580182-A (GB)
Title: Improvements in or relating to the polymerization of olefines
IPC: C08F10/00
Filed: 1943-12-08
Abstract: Solid and semi-solid mono-olefine polymers and interpolymers formed at elevated temperature and pressure, preferably in the presence of oxygen or peroxygen-type catalysts, are separated from the vapour in at least two stages, in each of which the products have a different solubility in the vapour.  Preferably, the first product is separated from the vapour at polymerization temperature and pressure and the subsequent products precipitated by lowering the pressure and/or temperature of the vapour.  In examples, ethylene is polymerized at 200 DEG  C. and 1000 atmospheres pressure by the process of Specification 471,590 and the vapour is (1) bled off from undissolved polymer and cooled at 1000 atmospheres pressure in two stages, (2) separated from undissolved polymer at polymerization temperature and pressure and the dissolved polymer is separated by reducing the pressure to atmospheric at the polymerization temperature. Interpolymers of ethylene with other olefines; vinyl ethers, ketones and esters; styrene; stilbene; acrylic and methacrylic amides, nitriles and esters; crotonates and itaconates; butadiene, isoprene and chloro-2-butadiene-1,3; limonene and camphene may be used in the process.
Patent GB-416531-A (GB)
Title: Improvements in or relating to motor road vehicles
IPC: B60K17/16
Filed: 1933-07-20
Abstract: 416,531. Motor-vehicle axles and driving gearing. THORNYCROFT & CO., Ltd., J. I., and THORNYCROFT, SIR J. E., Smith Square, Westminster. July 20, 1933, No. 20512. [Classes 79 (ii) and 79 (iv).] In order that the wide twin tyres of the driving wheels of a motor vehicle may bear evenly on a cambered road the separatelydriven live half-axles 2, 3 are downwardlyinclined from the centre of the vehicle and are driven from the propeller shaft 1 through differential gear 7 and worm gearing 6. Spur reduction gearing 8, 8<a> is provided between the differential gear and the worm gear. In a modification an auxiliary two-speed gear giving an over-speed and a speed reduction is provided between the propeller shaft and the differential gear. A free-wheel clutch may be inserted immediately in front of the differential gear. Specification 29631/13, [Class 79 (ii)], is referred to.
Patent GB-231742-A (GB)
Title: Improvements relating to press buttons and like fastenings for use with flexible materials
IPC: F16B21/18
Filed: 1924-08-30
Abstract: 231,742. Harrison, S. C., and Iles, H. Aug. 30, 1924. Press-buttton fasteners; stud-and-socket fastenings.-In stud-and-socket fastenings of the kind where a headed stud is engaged between two spring arms in the socket member by pressure and is disengaged by turning a central knob to separate the arms, the socket member is two-part and has three projections pressed up from one part, two of which limit the amount of separation of the spring arms so as to prevent their complete disengagement from the separating knob .and the other anchors the springs to the socket. The socket comprises a top plate a with lugs c passing through slots in the bottom plate b under which they are clenched. The plate a has longer lugs d passing through the fabric and clenched behind the washer f for attachment. The lower plate b has stamped-up lugs k, j, j, the lug k serving to anchor the spring members i to the socket and the lugs j forming stops adjacent to the periphery of the knob shank g. The springs i have parallel arms crossing a hole in the plate b so that on entering the strd 1. the springs engage the neck thereon and retain it. The spring arms also cross a pair of slots h cut in the shank of the knob shank g. To release the stud, the knob g is turned so that the shank separates the spring arms. The stops j prevent the separation being sufficient to liberate the knob shank from its engagement with the spring arms. Specification 188,295 is referred to.
Patent GB-460423-A (GB)
Title: Improvements in or relating to the manufacture of cells for electrolytic or electrostatic condensers or secondary batteries
IPC: H01G13/02
Filed: 1936-07-24
Abstract: 460,423. Making electric condensers and secondary batteries. JAHRE, R., (trading as JAHRE SPEZIALFABRIK FUR KONDENSATOREN, R.) July 24, 1936, No. 20552. Convention date, July 30, 1935. [Classes 83 (ii) and 83 (iv)] [Also in Group XXXVI] Cells of roll form for electrolytic or electrostatic condensers or secondary batteries have overlapping portions of the outer metal covering welded together by connecting the covering to one pole of a source of electric current and an electrode to the other pole. The metal covering may comprise the outermost layer of the roll or a separate metal winding. If welding is effected before separating from the supply roll, one pole of the circuit may be connected to the supply roll. The roll 4 is rotatably mounted on a shaft carrying a crank 3 and the layers 8, 9 are held to prevent them unrolling by plate springs 5, 6 connected to one terminal of the source of current. Welding is effected by electrodes 10 carried by plate springs 11 connected to the other terminal and operated by a foot or manually controlled member 16 connected to a bar 13 guided in slotted brackets 15 and passing through apertures in the parts 11. The de-electric may include a layer 23 of paper arranged beneath the layers 8, 9. Welding may be effected by direct or alternating current. In one form a condenser 17, which is charged from a source 19 through a potential divider 18 and resistance 20, is discharged through an adjustable resistance 22. The charging voltage is indicated by a voltmeter 21. A grid controlled valve can also be used to control the welding circuit. When welding simultaneously with a number of electrodes a separate circuit is used for each electrode. A single electrode with flexible lead may also be used.
Patent GB-864758-A (GB)
Title: Improvements in or relating to the preservation of vegetable juices
IPC: A23L2/44
Filed: 1957-06-28
Abstract: Vegetable juice products which keep well and retain their vitamin content are made by fermenting the raw juice with lactic acid-producing micro-organisms at elevated temperature (35-38 DEG C.) for not more than 12 hours until the pH is 3.8-4.2, and then pasteurizing, e.g. in bottles at 55-60 DEG  C. for 5-10 mins.  A protective colloid, e.g. a solution of agar, may be added before or after fermentation.  The fermenting liquid is preferably blanketed by inert gas such as carbon dioxide.  Juices of carrots, beets, celery, nettles, tomatoes and cucumbers are referred to. The juice may be vitamin enriched, e.g. black current juice or yeast may be added, before the pasteurization.
Patent GB-201037-A (GB)
Title: An improved method of casting small objects in moulds, and apparatus therefor
IPC: A61C13/20
Filed: 1922-07-27
Abstract: 201,037. Kemp, L. J. July 27, 1922. Casting-apparatus for dental fillings and like small objects comprises a mould, an enclosing electric furnace, and means for ensuring the of metal into a cavity in the mould which rests on the bottom of the furnace and is held in position by clamping-means so that the mould may be disengaged from the furnace by a straight lift. The mould comprises an annular ring 18 tapered internally to hold a porous investment compound 19 and depending arms 21 having hooked ends 22 passing through perforations 24 in the base plate 9, and engaging draw bars 26. which are tightened by a screw member 28 working through a cross bar 27. The electric furnace 12 is provided with sockets 15 which adjustably engage two guides 10, so that the furnace may be removed from position without disturbing the mould. The molten material is caused to flow into the recess 20 by applying a vacuum at the end of the tube 23, or by steam pressure obtained from a moistened asbestos pad placed in the furnace. Annular packing rings 25, 17, ensure air-tight connection between the base plate 9 and the mould and furnace respectively. In an alternative, construction, the refractory material forms the bottom of the furnace, a passage therein being made for the application of the vacuum, while the mould is provided with upwardly extending arms, which are connected, by a cross bar to the clamping-means which engage projections on the sides of the furnace.
Patent GB-315996-A (GB)
Title: Improvements in or relating to paddle propellers
IPC: B63H1/08
Filed: 1928-07-17
Abstract: 315,996. Meindersma, W., Rutgers, M., and Dijkgraaf, A. F. J., (trading as Findriven-Syndicaat). July 17, 1928. Paddle propellers. -A paddle propeller, the axis of which moves in a closed circuit and is feathered by revolving half a revolution on its axis, is characterized in that the feathering motion is effected bv means of two toothed wheels in direct engagement, one being connected with the paddle, the other being connected with the control shaft, adjustment of which alters the phase of the feathering motion. The paddle 8 universally mounted at 16, Fig. 1, has a cranked connection 2 with a driving shaft 1. Keyed to the paddle is an internal bevel 6 which gears directly with a bevel 4 in the 2 1 ratio. The bevel 4 is mounted on a hollow control rod 3 adjustment of which alters the phase. In a modification, spur wheels replace the bevel wheels and the paddle is connected by universal joints with the driving means. In a further modification the driving shaft is hollow and the control shaft mounted inside. In place of toothed gearing, the paddle may carry a block 6, Fig. 8, having crossgrooves and the control shaft may carry a block 4 having two units 10 adapted to slide in the said grooves. By this means the 2 : 1 ratio is obtained for feathering.
Patent GB-1435277-A (GB)
Title: Hay-making machine
IPC: A01D78/10
Filed: 1974-05-10
Abstract: 1435277 Haymaking machine W REBER 10 May 1974 [23 May 1973] 20759/74 Heading A1F Each rotor 2, 3 of a haymaking machine can be moved from a tedding position (Fig. 1) to a windrowing position (Fig. 2) by lowering an annular support 17 and tilting the axes 5, 6 of the two rotors 2, 3. The lowering acts to pivot carrier arms 19, having tools 20 attached about cranks 15, attached to the annular support 17 by actuators 18, inwards towards the axes of the rotors 2, 3 so reducing the inclination of the tools 20 to the ground and also pivots connecting rods 13 about articulators 14, by which the connecting rods 13 are attached to hubs 7, 8, such that the connecting rods 13 move inwards towards the axes 5, 6 of the rotors 2, 3. The connecting rods 13 are held in this position by hooks 27 on a looking ring 28 engaging with eyelets 29 on the connecting rods 13. The change from the withdrawing position back to the tedding position is accomplished by disengaging the hooks 27 and then rotating the rotors 2, 3. The centrifugal force on the connecting rods 13 moves them outwards and due to the link provided by the cranks 15 between the connecting rods 13 and the annular support 17 pulls the annular support 17 upwards, concentrically with the axes 5, 6 of the rotors 2, 3. Also due to the movement of the crank 15 the carrier arms 19 are pivoted outwards and are locked in the tedding position by two stops' (not shown). In a second embodiment the rotors can be tilted and the annular support raised or lowered in one movement. By turning a crank handle 12 a rotor carrier beam 1 is pivoted about an axis forward of the beam 1 so tilting the rotors which are attached to the beam 1 and also resulting in a pressure being exerted on a base piece 35 and hence on a flexible plate 33. If the machine was in the windrowing position (Fig. 10), depressing the plate 33 would disengage cams 31 from holes 34 in the plate 33 and then by rotating the rotors 2, 3 the push rods would fly out, under centrifugal force, to occupy the tedding position and following the release of pressure F, due to a cam system, cams 32 would engage the holes 34, locking the machine in the tedding position. The annular support 17 can be replaced by a number of elements which connect the cranks 15.