baber/WOPTO huggingface dataset:
Patent GB-269911-A (GB)
Title: Improvements in and relating to chewing gum
Filed: 1927-04-21
Abstract: 269,911. Health Products Corporation, (Assignees of Berg, W. H., Whitman, R. C., and Aab, E. F.). April 22, 1926, [Convention date]. Chewing preparations; medicines for internal use; coatings for medicines. - Phenolphthalein, pepsin, or other medicament is introduced into chewing gum in the form of relatively hard pellets which are uniformly distributed in the gum during manufacture. The pellets may be formed by moistening crystals of sugar in a rotating pan with water or sugar syrup and adding phenolphthalein to form a coating, or by moulding a paste of phenolphthalein, glucose and gum arabic. In either case the pellets may be rendered less fragile by means of a hard sugar coating. The pellets are added to the cooked mixture of chicle and other ingredients in the kettle and are uniformly distributed by kneading and stirring. The mass is then removed from the kettle, cooled, formed into strips, scored to the required dimensions by rollers, and broken in a revolving pan. The pieces so formed may be sugar coated by moistening them whilst in a revolving pan with a solution of sugar and gum, sprinkling with dry sugar, and drying by a current of air; these steps being repeated until the required thickness of coating is attained. Oil of peppermint or other flavourings and colouring- matter may be added to the coating materials.
Patent GB-1007936-A (GB)
Title: Improvements in or relating to semiconductive devices
IPC: H01L23/485
Filed: 1962-03-20
Abstract: 1,007,936. Semi-conductor device. CLEVITE CORPORATION. March 20, 1962 [April 26, 1961], No. 10731/62. Heading H1K. The parasitic capacity of a metallic lead deposited on and extending across the surface of the body of a semi-conductor device, with an interposed circulating layer, is minimized by forming in the body, immediately adjacent to the lead, a region of conductivity type opposite to that of the surrounding parts of the body. In a planar transistor, a body of P-type material 10, Fig 1A, is masked at 12, Fig. 1B, and N-type regions 13 are formed by diffusion The surface is then covered with an oxide coating 16, Fig. 1C, which is etched away, Fig. 1D, to provide an opening over the central region 13a, to allow the formation of a P-type region 17, Fig. 1E. An oxide coating formed over the whole surface is then etched away adjacent the three regions 17, 13 and at the lower surface of the body 10, Fig. 1F, and metal is deposited to form leads 26, 27, 28, Fig. 1G, which make ohmic contact with the appropriate regions. Of these, 17 is the emitter, 13a the base and 10 the collector. The capacity which would normally exist between the emitter lead or base lead and the collector is minimized by the presence of the floating P-N junction 32, which forms additional capacity in series with it. In a second embodiment comprising an N-P-N transistor, which is described with reference to Fig. 4, the effect is further enhanced by an additional N-type layer.
Patent GB-559088-A (GB)
Title: Improvements in or relating to life-boats
IPC: B63C9/02
Filed: 1942-08-01
Abstract: 559,088. Lifeboats. FLEMING, I. R., and FLEMING, F. E. Aug. 1, 1942, No. 10803. [Class 113 (ii)] In a lifeboat, portable duckboards 15 are supported in the plane of the seats 12, 14 so as to extend the seats and deck-over substantially the whole or a part of the boat. The deck-boards may be hinged at 16, Fig. 3, they may have positioning battens 19 and be stowed under the thwarts 11 against bulkheads 18, Fig. 5, or they may have guide blocks 20 and be slid from over or under the seats, as shown in Fig. 7. The central space 24 and the ends of the boat also may be covered in by portable deck-boards. The Provisional Specification refers to Specification 517,147.
Patent GB-610500-A (GB)
Title: Improvements in or relating to screening means for radio and electrical apparatus
IPC: H05K9/00
Filed: 1946-04-08
Abstract: 610,500. Protective arrangements. P.R.T. LABORATORIES, Ltd., and JONES, V. A. April 8, 1946, No. 10817. [Class 38 (iv)] [Also in Group XL (c)] The continuity of a common screen adjacent to or surrounding a number of radio or electrical circuit components is interrupted intermediately of the components to prevent mutual interference by eddy currents generated in the screen. The interruptions may be in the form of slots, which also constitute ventilation louvres. Alternatively, the slots may be covered by or filled with insulating material to restore the mechanical strength of the screen. Fig. 2 shows a screening enclosure 10 having slots 20 for preventing a wireless receiver, located in the upper portion of the enclosure, from receiving interference from a vibratory power supply unit disposed in the lower portion.
Patent GB-485047-A (GB)
Title: Improvements relating to the surface hardening of v-shaped rails for supporting machine-tool or other slides
IPC: C21D1/08
Filed: 1937-04-16
Abstract: 485,047. Surface - hardening metals. HERBERT, Ltd., A., LLOYD, A. H., and BEENY, H. H. April 16, 1937, No. 10835. [Class 72] In the surface-hardening of the operative face of an inverted-V-rail to be used for supporting a machine tool or other slide, the flanks of the rail are heated by a flame and then cooled, a jet of water or other cooling medium, which may be directed rearwardly, being impinged on the apex of the rail to prevent it being heated when the flanks are being heated. The flanks 12 of the rail are heated by a burner 10 of the kind described in Specification 477,284, [Group XI], cooling liquid being supplied by a pipe 18, which passes through a tray 17, to a chamber 19 and thence to pipes 20 which direct the cooling liquid on to the flanks 12. Pipes 23 supply cooling liquid for the burner 10, and the pipe 25 receives liquid from that supply and delivers it through the end 26 on to the apex of the rail, this jet of cooling liquid being delivered at a higher pressure than that in the pipes 20. The heating and cooling of the flanks 11 may also be effected by the apparatus shown in Specification 477,277.
Patent GB-584445-A (GB)
Title: Improvements in or relating to the varnishing of articles such as armatures
IPC: B05D3/02
Filed: 1944-06-08
Abstract: A method of varnishing a rotatable article such as an armature comprises heating it to a temperature sufficient to cause evaporation of the varnish solvent from a coating of varnish applied thereto rotating the heated article in a bath of the varnish and thereby applying thereto a coating of varnish substantially free from solvent, removing the article from the bath and continuing to rotate the thus coated article while heating it to bake the varnish. Preferably the article is rotated while it is being heated and preferably the heating is effected by infra-red radiation.  The sequence of steps may be repeated.  In an example, an armature is heated to 300 DEG F. for 15 minutes, rotated once at speed of 1 r.p.m. in a varnish consisting of phenol-formaldehyde resin in petroleum naphtha, removed, rotated slowly for 2 minutes and then for 6 minutes while baking.  The first two steps are repeated, and the armature removed and baked for 12 minutes.
Patent GB-634733-A (GB)
Title: Improvements in and relating to building units
IPC: E04B2/56
Filed: 1947-04-24
Abstract: 634,733. Apertured building-blocks. BEAUD, M., and ROLANDEZ,F. April 24, 1947, No. 11009. Convention date, May 1, 1946. [Class 87 (i)] A building element 1 having a horizontal circular bore 2 is provided with a tongue 5 and a corresponding groove 4 on its upper and lower faces respectively and with a vertical central groove in each end face. The groove 4 may be of greater depth than the tongue 5.
Patent GB-1412036-A (GB)
Title: Interface assembly in a process control system for use where  there is a fire hazard
IPC: G08C19/00
Filed: 1973-03-07
Abstract: 1412036 Protective circuits in process control systems FOXBORO CO 7 March 1973 [6 April 1972] 11016/73 Heading H2H  An interface assembly in a process control system is located between a control room and a process area and comprises an interface 10 which includes current limiting resistors 20, 21, 24 and a voltage limiter 30 for limiting the voltage supplied to the interface from a power supply 28. On the process side 12 of the system a signal transmitter 14 and a valve positioner 15 are located in a hazardous process area 16 where a risk of ignition due to a fault in electrical equipment may exist. A signal from the transmitter 14 is supplied via a differential amplifier 19 to control instruments 13 on the control room side 11 of the system. The instruments 13 supply a signal to the valve positioner 15 via an amplifier 25 and the voltage limiter 30 supplies power on output buses 32, 33 and 34, 35 to each side of the interface. If an excess voltage occurs on cable 31 a thyristor (45), Fig. 2 (not shown), is triggered by a Zener diode (46) to short circuit the supply.
Patent GB-345519-A (GB)
Title: Improvements relating to transmission chains
IPC: F16G13/06
Filed: 1930-04-07
Abstract: 345,519. Driving chains with separate joint pins. RENOLD, Ltd., H., Burnage Works, Didsbury, Manchester, and BUSWELL, F., 24, Lytham Road, Clarendon Park, Leicester. April 7, 1930, No. 11055. [Class 24.] In driving chains of the type comprising pairs of links 10 connected by pins and bushes, some or all of the link plates are extended in width on one side to guide the chain on to the sprocket. The plates may be divergent as shown at 12 and may also be curved convexly inwards, or the ends bevelled or rounded on the inside. Specifications 20011/96 and 13456/00, [both in Class 24, Chains &c.], are referred to.
Patent GB-1508841-A (GB)
Title: Instrument which is sensitive to acceleration and inclination
IPC: G01C9/12
Filed: 1975-03-17
Abstract: 1508841 Accelerometers: inclinometers A J STOLTZ 17 March 1975 11071/75 Headings G1F and G1K [ Also in Division F3] An instrument 10 responsive to acceleration and inclination comprises a casing 12 containing a liquid such as oil, a totally-immersed float structure 36 mounted to be pivotable about a horizontal axis defined by a spindle 42 relative to the casing, the structure comprising two floats 84 one on each side of the axis and each having its centre of buoyancy above the axis, the float structure being balanced so that it does not turn due to its inertia when subjected to horizontal acceleration perpendicular to the axis, and means for converting relative pivotal movement between the float structure and the casing caused by acceleration and/or inclination of the casing into an output signal. As shown in Figs. 2 and 3 a sun gear 64 fixed relative to the casing and a planet gear 70 mounted on the float structure mesh to cause rotation of a pointer 28, when such relative movement occurs, relative to a scale 30 fixed to the float structure. Alternatively, as in Fig. 5 (not shown), a bevel gear (100) fast with the float structure may mesh with a pinion (102) at one end of a spindle (104) borne by the casing and mounting a pointer (106) movable over a scale (116) fixed to the casing. The float structure 36 may comprise three co-axial discs 38 mounting two cylindrical floats 84, portioned symmetrically about the vertical plane through the spindle 42, and a counterweight 86 which which balances the floats 84. In the embodiment shown in Fig. 4 the casing of a second instrument is attached to the float structure of a first instrument, and relative movement between the float structures and the casings of the two instruments are sensed by proximity sensors 204, 206. The output from the sensors 206 can be used to block the output from the sensor 204. Where the outputs are used to control servomotors e.g. for controlling the attitude of a tank gun, the blocking is used to prevent an attitude change in response to a temporary change in inclination.
Patent GB-898282-A (GB)
Title: Sealing rings for rods and shafts
Inventor: LANSKY ZDENEK JOHN
IPC: F16J10/02
Filed: 1961-03-27
Abstract: 898,282. Stuffing-box substitutes. PARKERHANNIFIN CORPORATION. March 27, 1961, No. 11115/61. Class 122 (5). [Also in Group XXIX] A soft rubber sealing ring 54 for use between relatively reciprocating cylindrical members 36, 40 comprises in cross-section a base 80 with oppositely-diverging inner and outer lips 82, 84 separated by a channel 88 ,the lip 82 forming with the base 80 an inwardly sloping surface which is formed with annular ridges 100 and is outwardly bevelled at 112 so that the first point of contact with the member 36, when the ring 54 is received thereon, is formed by the smallest diameter ridge which is adjacent the bevelled portion 112. In operation the lips are forced against the members 36, 40 by pressure fluid entering the channel 88. Extrusion of the ring is prevented by a leather washer 90. The ridges 100 are sawtoothed in cross-section and permit the re-entry in the cylinder of fluid which may have passed by the ring 54 and accumulated in the space between the latter and a secondary wiper ring 58. The ring 58 has also a V-shaped cross-section and is formed with opposite inner lips 66, 74, the latter extending beyond the gland 40 and serving to wipe dirt off the member 36. Sealing pressure of the lips 66, 74 is increased by the provision of a relieved surface 78 therebetween.
Patent GB-454954-A (GB)
Title: Improvements in or relating to modulated carrier wave receivers
IPC: H04B1/30
Filed: 1935-04-10
Abstract: 454,954. Valve circuits for wireless reception. MARCONI'S WIRELESS TELEGRAPH CO., Ltd., Electra House, Victoria Embankment, London, and MURPHY, F. M. G., Orchard Lodge, London Road, Chelmsford. April 10, 1935, No. 11160. [Class 40 (v)] A single - side - band receiver of the frequency changing type for use when supplemental carrier energy is transmitted comprises a local oscillator 13 which supplies the detector 5. A second oscillator 14 energy from which is combined with the supplemental carrier frequency in a frequency changer 7 is provided and the output of the frequency changer 7 is combined with energy from the oscillator 13 and the product again combined with energy from the oscillator 14 in a second frequency changer 11 to give a frequency differing from that of oscillator 13 by the received carrier frequency which is used as the local oscillation frequency for the frequency changer 3. The oscillator 13 has a relatively low frequency equal to that of the intermediate frequency obtained from the output of the frequency changer 3. Since no sideband energy is present after the filter 8 energy may be taken after this point to effect automatic volume control.
Patent GB-409897-A (GB)
Title: Improvements in cam mechanism for converting reciprocating into circular motion
IPC: F16H25/14
Filed: 1933-04-13
Abstract: 409,897. Cam gearing. DASSET, E., 752A, ChaussÚe de Waterloo, Brussels. April 13, 1933, No. 11183. [Classes 80 (i) and 80 (iii).] A cam 3 for converting the reciprocations of a piston or pistons into the rotations of a shaft 1 or vice versa has the shape shown, the curve 6 being concentric with the shaft. Each piston is connected to a link 8 slotted at 9 to pass the shaft. Rollers 11, 111 carried by the link bear on the periphery of the cam. There may be one cam with a link on each side or two cams with a link, carrying two rollers at each end, between them. Collinear pistons may be connected one to each end of the links or pairs of links. An application of the invention is shown in Fig. 6, in which pistons P are grouped round a central shaft 13 which is rotated by means of cams 3, rollers 11, 11<1>, secondary shafts 16, and bevel gearing 14, 15.
Patent GB-1461918-A (GB)
Title: Door sealing means for microwave ovens and for combined microwave and self-cleaning ovens
IPC: H05K9/00
Filed: 1974-03-13
Abstract: 1461918 Microwave oven seal GENERAL ELECTRIC CO 13 March 1974 [28 March 1973] 11208/74 Heading H5H [Also in Divisions F2 and F4] A microwave oven door seal comprises an outer, endless, flexible, conductive jacket 40 for making electrical contact between the oven door and the oven liner, an elongate flexible electrically insulating sleeve 44 disposed within the jacket 40 and formed to provide two coextensive chambers 48, 50 joined by a web 52, a plane reinforcing insert 60 shaped to conform to the periphery of the oven opening and inserted in chamber 48 adjacent web 52 to prevent puckering of the seal as it is formed about the corners of the opening, and a resilient core 56 disposed coextensively in the sleeve chamber 48 for exerting a radial pressure against the insert 60 and sleeve chamber 48 and likewise outer jacket 40, to maintain insert 60 in position and ensure continuous electrical contact between the oven door and liner about the oven opening. The insulating sleeve 44 is preferably formed of woven glass fibre so that it will prevent the escape of heat, smoke and gases when the microwave oven is provided with a pyrolitic oven cleaning heater. The jacket 40 is made of metallic mesh, e.g. stainless steel mesh or any high temperature heat insulating electrically conductive material. The resilient core 56 may be of stainless steel knitted mesh or of silicone rubber. The web 56 and sleeve chambers 48, 50 are formed by lines of stitching 46. Sleeve chamber 50 accommodates a fibre glass drawstring 64 by which the seal may be secured about the inner panel 34 of the oven door. After tightening and securing the drawstring 64, the free ends of the seal are wrapped with a band having a fibreglass inner core and a metallic mesh outer jacket so that the seal becomes endless. The peripheral door liner 36 is then secured to the inner panel 34 so that the seal is clamped between them. On locking the oven door, the microwave seal will be compressed between the door and the oven liner, and on unlocking the door, the seal will resume its elliptical profile.
Patent GB-1127944-A (GB)
Title: Improvements relating to pyrometer
Inventor: DYNES BARRY
IPC: G01J5/60
Filed: 1966-03-15
Abstract: 1,127,944. Pyrometer. ASSOCIATED PORTLAND CEMENT MFRS Ltd. March 15, 1967 [March 15, 1966], No. 11277/66. Heading G1A. A ratio pyrometer comprises two radiation transducers arranged simultaneously to receive radiation from a source to be measured, the two transducers being inherently responsive to different bands of the wavelength of the radiation emitted by the source and being mounted to receive the radiation directly. One of the transducers may be a solid state device such as for example a silicon photo-voltaic cell, a photo-transistor, or a photodiode, and the other a thermopile or bolometer, and they may be arranged side by side or in axially spaced positions in a common optical path. Filters may be inserted in front of both transducers, or in front of one of them, to eliminate unwanted radiation. In a pyrometer described, a silicon solid-state device is mounted behind the thermopile which may be ten platinum/platinum 13% rhodium thermocouples, or a number of thermistor beads disposed symmetrically about the optical axis, in a hole through a block, the temperature of which is measured electrically, and maintained constant by a heater element and a stream of cooling air injected into the housing. The block may be moved along a track by an external knob to bring the radiation into focus behind a lens in a front viewing tube attachment, and may be moved to one side so that the heated body may be viewed directly through the viewing tube by means of an eyepiece let into the rear of the housing. The cooling air is caused to flow into the viewing tube both for cooling and for keeping the lens free from dust. If both devices are photo-voltaic their outputs may be compared by a servo-driven potentiometer device which also gives the desired temperature indication. The wavelengths detected may be separate, may overlap, or one may fall wholly within the other, and preferably the second transducer should be responsive to a very narrow spectral band.
Patent GB-703498-A (GB)
Title: A process for protecting securities against forgery
IPC: B41M3/14
Filed: 1951-05-15
Abstract: 703,498. Cheques, drafts, and the like. BADISCHE ANILIN- & SODA-FABRIK. May 15, 1951 [May 16, 1950], No: 11282/51. Class 16 [Also in Group VIII] Securities are protected against forgery by providing them before, during, or after manufacture with magnetizable substances and impressing phonetic signals, capable of being detected by magnetographic sound recording methods; on the paper or other material of the securities. The magnetizable substance may consist of oxide iron compounds, e.g. gamma-ferric oxide, ferrosoferric oxide or ferrite.
Patent GB-219403-A (GB)
Title: Improvements in or relating to the cracking of oils
IPC: C10G11/00
Filed: 1923-04-26
Abstract: 219,403. V.L. Oil Processes, Ltd., and Lucas, O. D. April 26, 1923. Hydrocarbons, cracking.-In converting heavy 'into lighter oils by the process described in Specifications 20470/13 and 12653/14 in which the oil vapours are carried from a still by a current of steam or gas into a cracking retort containing a heated catalyst, a small proportion of ammonia or a mixture of ammonia and hydrogen is introduced into the retort. Specification 108,019 also is referred to.
Patent GB-361802-A (GB)
Title: Improvements in or relating to fire hydrant and associated hose reel apparatus
IPC: B05B1/30
Filed: 1931-04-17
Abstract: 361,802. Fire - hydrants ; valveactuating mechanism. DIXON & SON, Ltd., S. and DIXON, C., 20, Swinegate, Leeds. April 17, 1931, No. 11367. [Classes 69 (i) and 135.] The hose nozzle of a fire-hydrant is adapted to serve as a turn-key mounted on or connected to the valve so that it cannot be removed without turning on the valve. A socket member 2 of the nozzle 1 rests upon the valve spindle 3 carrying a housing 5 ; in the fully-open position of the valve a projection 7 on the member 2 may pass through an opening in the housing, the " on " and " off " positions being determined by means of projections 9 thereon. Other appropriate means may be substituted for the pin and bayonet-slot mechanism.
Patent GB-113745-A (GB)
IPC: G04B37/14
Abstract: 113,745. Wachter, L. E. F. Aug. 25, 1917. Bows; cases, watch.-For propping up a watch A on a table, a strut H is integrally combined with the bar E. The strut may take the form of a ring normally encircling the case. The free end of the strut H, Fig. 3A, may have an eye J for the passage of a wrist strap. The strut may be locked, as shown in Fig. 2, to allow engagement with a loop L in the wearer's pocket M for keeping the watch upright. A spring N on the pendant normally holds the strut against the case.