baber/WOPTO huggingface dataset:
Patent GB-495086-A (GB)
Title: Improvements in or relating to apparatus for internally deincrustating pipe lines
IPC: B08B9/04
Filed: 1937-05-04
Abstract: 495,086. De-incrustating tools for pipes. HODGKINS, A. F., and JAMESON, A. S., [Representative of JAMESON, A. M. C.]. May 4, 1937, No. 12975/38. Divided out of 495,045. [Class 99 (ii)] A tool for de-incrustating the interior surface of a pipe or pipeline is in the form of an open skeleton-like structure which is adapted to be traversed with linear motion only through the pipe and consists of an axial supporting rod &c. upon which is mounted a succession of sets of blades, the blades being disposed, some longitudinally and the others acutely, so as in the aggregate to act upon the whole surface of the pipe and being arranged in increasing number in the sets towards the rear or trailing end of the tool. Preferably, the tool is in the form of units, the several units carrying respectively the several sets of blades and the axial support of each unit being flexibly coupled to the supports of adjacent units. Figs. 1 and 2 show a tool comprising a cutting unit provided with four angularly-spaced longitudinal blades 7 resiliently mounted in slotted arms 1, 2 radiating from a support 3, and four scraping units with resiliently-mounted groups of blades, each group consisting of a longitudinal blade 11 and two acutely-disposed curved blades 12, 13, and the two groups of blades in each of the first two scraping units and the four groups in the last two units being staggered as shown. If desired, one or more rotatable tools provided with resiliently-mounted helical blades 14, Fig. 3, may be traversed along the pipe in rear of and in train with the above-described tool; also a wire brush 21, Fig. 9, for removing residual incrustation, and a squeegeeing tool, Fig. 10, in the form of leather discs 26 located between pairs of metal plates 24, 25. Specification 495,045, [Group III], which describes apparatus for internally painting a pipe after de-incrustating, is referred to.
Patent GB-781978-A (GB)
Title: Improvements in sheet feeding devices of the reciprocating tooth type
IPC: B65H3/24
Filed: 1954-05-04
Abstract: 781,978. Feeding boards. ROWLANDS, T., HUBBARD, H. J., and MOLINS MACHINE CO., Ltd. April 28, 1955 [May 4, 1954], No, 12989/54. Class 117  Apparatus for feeding boards B from magazine 5 comprises a main pusher 36 and an auxiliary pusher 16, the lowermost board being first engaged by the auxiliary pusher so that its rear edge drops clear of the pile and being then engaged and discharged by the main pusher. As shown, the feed magazine of a cutting and creasing machine is formed by rear fences 10, adjustable side fences 8 and front gate 4 adjustable at 33. The twin auxiliary pusher 16 is given a smaller reciprocation by cam 23 and lever 24, and the twin main pusher 36 is given a larger reciprocation by the grill of said machine. The lowermost board rests first on flat faces 27 of pusher 16 and, as the latter passes backwards, the board drops in  front of the tooth of the pusher and the board is then thereby pushed forward till it drops over the spring-pivoted ledges 12 so as to expose its rear edge. The main pivoted pusher 36 (which overhangs the back edge of the board) then discharges the board beneath front gate 4, the passage of the board being governed by members 30 and 48. Specification 721,875 [Group VIII] is referred to.
Patent GB-1368029-A (GB)
Title: System including a brushless direct current electric motor
IPC: H02P6/14
Filed: 1972-03-21
Abstract: 1368029 Control of D.C. motors BUHLER NACHFOLGER GmbH Gebr 21 March 1972 [1 April 1971] 13058/72 Heading H2J A brushless D.C. motor has a permanent magnet rotor and multipolar field windings on the stator, each winding being sequentially connected to a D.C. supply through a power transistor, and has a motor control circuit including an oscillator supplying signals to a multistage ring counter, each stage controlling a respective transistor, the oscillator having a predetermined lowest frequency, and a normal operating frequency dependent upon a motor speed feedback signal. In the embodiment shown, the oscillator 13 comprises a multivibrator fed with a speed dependent voltage or frequency signal from the motor field windings via decoupling diode 23 and feedback loop 15, the frequency of ring counter 12, connected to the oscillator output through coupling stage 19, being thus controlled in dependence upon the motor speed. The counter 12 comprises a flip-flop stage for each field winding 101, 102, 103, each stage controlling a respective power transistor 20, 21 or 22 in series with the winding across D.C. supply lines 111, 112. At a desired motor speed, Zener diodes 24, in additional feedback loop 17 from the motor windings, breakdown, the oscillator is disconnected and the counter controlled directly by the speed dependent voltage on the loop 17 to limit the speed to said desired value. In an alternative excitation control, the oscillator frequency is varied independently of motor speed by an RC circuit (18), Fig. 1 (not shown), connected to the D.C. supply.
Patent GB-1509011-A (GB)
Title: Humidifying and heating a gas
IPC: F24F6/02
Filed: 1975-03-27
Abstract: 1509011 Humidifying and heating breathing air F HOFFMANN - LA ROCHE & CO AG 27 March 1975 [28 March 1974] 13062/75 Heading A5T Air is humidified by feeding it from an inlet duct 27 to a narrow annular passage defined between inner and outer concentric casings 4, 5. The gas then passes through slots 8 in the bottom edge of casing 5 and enters a controllably heated body of water 11 as finely divided streams. The humidified air then rises through the central opening in an annular catch plate 18 within the casing 5 and exits via duct 3. The water is introduced to the casing 5 from a screw fitted reservoir 14, double valve arrangement 25, 22 and small holes 12 in an axial sleeve 10. The water within the sleeve 10 defines a top up zone and maintains the level of water body 11 substantially constant. Upon removal of the reservoir 14 the spring biassed valves 22, 25 close against the ends of tube 13. The water is heated by a plate 30 under the control of thermostat 34 electronic circuit 29 and humidified gas outlet temperature sensor 31. The control may be overriden by manual control, Fig. 2 (not shown).
Patent GB-377761-A (GB)
Title: Improvements in or relating to universal shaft couplings
IPC: F16D3/84
Filed: 1931-05-04
Abstract: 377,761. Universal joints. LJUNGSTRÍM, B., 83, Linnegatan, Stockholm. May 4, 1931, No. 13157. Convention date, March 9. [Class 80 (ii).] A constant velocity-ratio double universal joint which permits relative axial movement and may be used for driving motor-vehicle steering wheels, comprises two rows of drivetransmitting caged balls 9 engaging axial grooves 8 in sleeves 3, 4 splined to the shafts and in a common intermediate sleeve 13 maintained equally inclined to the shafts by tubular members 18 carried in the shaft ends and having tongued ends 20, 21 embracing a common ball 22 against which they are pressed by equally strong springs 19 bearing against necks near their ends. The springs 19 also ensure that the separate joints only partake of half the total relative axial movement. Axial movement of the balls in the slots 8 is limited by split rings 11, 12 sprung into grooves in the sleeves 3, 4 ; of the balls in the sleeve 13 by split spring rings 15 and screwed on end flanges 16 ; and of the sleeves 3, 4 on the shafts by spring rings 7. In order to obtain uniform stress, the intermediate sleeve 13 is thin and radially resilient. The joint is enclosed in an oiltight leather bellows 23, Fig. 6, secured by wire 24 to flanged rings 25 mounted on the shafts. The shaft ends may engage and centre each other directly instead of through the tubular members 18.
Patent GB-927760-A (GB)
Title: Improvements relating to the production of a continuous tobacco rod
IPC: A24C5/18
Filed: 1960-04-13
Abstract: In a method of producing a locally compacted tobacco stream in which additional amounts of tobacco are supplied to the tobacco stream at the points which are to be more compact, tobacco is supplied in excess of the required amount and the excess is removed or trimmed from the stream to produce a secondary stream whereupon the additional amounts of tobacco are formed from the excess and delivered to the tobacco stream after removal of the excess tobacco. Any minor quantity of tobacco trimmed from the stream which is surplus to that required for addition at the compacted points may be returned either to the distributer supplying the tobacco stream or to the tobacco stream leaving the distributer.  The stream is trimmed while on a belt or grooved feed wheel.
Patent GB-421116-A (GB)
Title: Improvements in and relating to metallic stools, chairs and the like
IPC: A47C3/24
Filed: 1933-05-06
Abstract: 421,116. Spring - supported seats. PARKES, S. R., Pretoria Works, New Road, Willenhall, Staffordshire. May 6, 1933, Nos. 13201 and 30278. [Class 52 (ii)] In a chair or stool of the type in which a revolving or adjustable seat is supported by a central pillar, the latter is carried by or secured to a resiliently supported member 5, 6, which slides in two spaced blocks forming part of the frame 1 of the stool, and carries a detachable collar or flange 7 against which bears the upper end of a spring 10, the member being provided with means for easily detaching the collar. For example, the member may consist of two parts 5, 6, each of which screws into the collar 7. Both parts of the member are internally threaded to receive the adjustable screw 8 forming the seat pillar. Alternatively a single sleeve with a detachable collar secured by a set screw may be used, or a similar collar may be so secured to a one piece seat-pillar in the case of a non-adjustable seat.
Patent GB-128198-A (GB)
Title: Improved Turning Signal or Indicator for use on Road Vehicles.
Inventor: HAY WILLIAM
IPC: B60Q1/34
Filed: 1919-05-27
Abstract: 128,198. Hay, W. June 11, 1918, [Convention date]. Road traffic signals on vehicles.-A semaphore device for indicating or signalling a turning movement of a vehicle comprises a vertical casing containing an arm adapted to be moved into the horizontal position through gearing operated by the driver. In the construction shown, a casing 10 is secured to the wind-shield and in the upper part is pivoted an arm 23 fitted with a pinion 22 engaging a racked bar 14. At the lower end the bar engages a pinion 18 mounted on a shaft 19 adapted to be rocked by a treadle or the like 20. The arm 23 normally lies within the casing, but upon operating the lever 20 the rack is moved and the arm raised into the position shown. A similar device is placed on the other side of the vehicle.
Patent GB-132949-A (GB)
IPC: G10C3/12
Abstract: 132,949. Ansell, W. R. Feb. 13, 1919. Pianoforte &c. key balancepins. - A balance-pin with a screwed end, a collar b, and a squared upper end f is fitted with a screwed sheath h having a pointed end which can be driven into the balance rail by hammering. The key lever is afterwards adjusted by screwing.
Patent GB-314638-A (GB)
Title: Improvements in or relating to sound recording and reproducing apparatus
IPC: G11B5/00
Filed: 1928-05-05
Abstract: 314,638. Shipton, E. May 5, 1928. Phonographs combined with wireless receivers. - Sound recording and reproducing apparatus with circuit connections is constructed as an attachment to a wireless receiving set having an amplifier where by sound signals may be .amplified and recorded, and subsequently, by adjustment of the circuit, reproduced through the amplifying means. Fig. 2 shows a wireless receiver with amplifier 22 delivering through switch A to a loud speaker 23. Switch B enables the amplified signal to be directed through a transformer 24 and normally closed switches D, E to the coils 25 of a recording device, for example a telegraphone recorder. The switch B may also complete the circuit to a motor 27 driving the record reels. For reproducing, the switch B is'opened and switch D operated to connect the coils 25, then operating as a pick-up, to the input of the amplifier 22. The switch C provides for reversing the motor 27 to rewind the record prior to reproducing, and a resistance 28 provides for rewinding at an increased speed. Provision may be made for wiping out a record after use and for applying a steady voltage to the pick-up coils. The magnetic record may be made as a spiral trace on a rotating steel disc.
Patent GB-239149-A (GB)
Title: Improvements in and relating to watches
IPC: G04B37/05
Filed: 1925-05-21
Abstract: 239,149. Wilsdorf, H. May 21, 1925. Cases, watch. - A watch comprises a casing 6, a cover 8 having a glass 9 and hinged at 7 or otherwise attachable to the casing, a rim 10 of heavy section hinged to, or separate from, the casing and fitting snugly in the casing and contacting with its interior surfaces and a movement held in the rim bv friction or by a locking pin or screw so that the dial 16 projects over the front face of the rim forming a dustproof joint when the cover is closed. The stem of the movement carrying the head 13 projects through an apertured boss 12 in the rim 10 and is accommodated by notches 14, 15 in the case and cover.
Patent GB-624699-A (GB)
Title: Process and apparatus for coating wires, cords, tubes, rods, and the like, more particularly with plastic materials
IPC: B29C48/06
Filed: 1946-05-02
Abstract: 624,699. Coating wire &c. SOC P.A. LAVORAZIONE MATERIE PLASTICHE. May 2, 1946, No. 13345. Convention date, Sept. 23, 1944. [Class 87 (ii)] Material for coating wire, etc. by extrusion through a die is uniformly distributed by a distributer 9 within the die. The distributer may contain a semicircular channel 11 with an aperture 10 at each end of the semicircle leading to the chamber 5 through which the wire f is drawn. In a modification the distributer has a circular channel having a circular' slot leading to the chamber 5, the slot increasing in width away from the aperture through which the material enters in order to compensate for the increased resistance to the passage of the material. In a further modification the connection to the chamber 5 is through holes of increasing size.
Patent GB-251117-A (GB)
Title: Process for the purification of petroleum, benzine and benzole hydrocarbons, their homologues and the like
IPC: C10G17/06
Filed: 1925-05-21
Abstract: 251,117. Ges. fur Warmetechnik, and Ufer, A. May 21, 1925. Mineral and tar oils, purifying.-Oils are purified by agitating with sulphuric acid at ordinary temperature and then, before removal of the acid, adding water or a solution of an electrolyte, preferably with continued agitation. After separation of the acid with or without the intermediate layer of resins, the oil is neutralized by caustic soda, milk of lime, ammonia, or other usual agent. The electrolyte solution preferred is the liquor from an ammonium sulphate saturator. Suitable proportions by volume are 5 per cent of acid, 8--10 per cent of water, and 10-20 per cent ammonium sulphate solution. The resinous layer may be drawn off separately and added to gas or other tar.
Patent GB-517710-A (GB)
Title: Improvements relating to hoppers or feed opening contrivances through which household refuse or other materials can be disposed of
IPC: E04F17/12
Filed: 1939-05-05
Abstract: 517,710. Dust &c. shoots. BLACKER, J. May 5, 1939, No. 13421. [Class 26] A rubbish disposal device for fitting in the wall of a building comprises a box portion a having a bottom a' shaped as shown and having attached thereto a frame b that supports a spindle c for the door d. On depressing a handle d<5> the door opens inwardly as far as a stop and is automatically closed by a spring or weighted lever. 'The door has an inner felted framing d<3> to ensure air-tight fit.
Patent GB-927083-A (GB)
Title: Improvements relating to binary magnetic stores
Inventor: WARMAN BLCOMFIELD JAMES
IPC: G11C11/06
Filed: 1959-04-20
Abstract: 927,083. Circuits employing bi-stable magnetic elements. ASSOCIATED ELECTRICAL INDUSTRIES Ltd. April 5, 1960 [April 20, 1959], No. 13428/59. Class 40 (9). Each storage unit at the intersection of row and column conductors R/W, C in a magnetic storage matrix comprises a pair of cores L, O allocated respectively to binary one and binary zero registration, a read-out pulse over conductor C from a drive core causing either L or O to reset according to the digit registered and induce an output pulse of one or other direction in conductor R/W which passes over a transformer T to a transistor blocking oscillator BO. At the same time a " cancel " pulse is applied to a transformer tertiary winding or directly to the oscillator which augments a binary one output pulse and effectively cancels a binary zero. The blocking oscillator operates as described in Specification 903,094 and at the end of the output pulse causes a full-amplitude write pulse to be transmitted over conductor R/W to the storage unit. If a binary one registration was previously read, the write pulse causes core L to be set, to re-register the digit, by acting on the pair of cores in combination with halfamplitude write pulses applied coincidentally to a re-write conductor W and conductor C. On the other hand if a binary zero was read, no write pulse is transmitted over R/W and the halfamplitude write pulses in W and C cause the setting of core O. In a modification the rewrite conductor W is omitted, and the write pulses are applied to the transformer tertiary winding so as to induce a half-amplitude current in R/W in the direction opposing binary one write current from the oscillator. Separate magnetic cores may be used, or alternatively a multi-apertured ferrite block.
Patent GB-453069-A (GB)
Title: A detachable and adjustable reading desk or table for attachment to the arm of a chair
IPC: A47C7/68
Filed: 1935-05-08
Abstract: 453,069. Desks. CARRIER, G. L., 361, Winchester Road, Southampton. May 8, 1935, No. 13509. [Class 52 (iii)] A reading-desk or table for attachment to the arm of a chair consists of a slope A rotatable about vertical and horizontal axes N and mounted on a bar B to the underside of which is attached at one end a hinged bar C adapted to engage the inner side of a chair arm and a clamping-member D set by means of a rack device. The bar D is pivoted to a sleeve E, of inverted-U-shape which receives also a finger piece H lifted by a spring J so as to press a detent into engagement with the rack. A rubber buffer L is fitted to the bar D to impart some springiness to it.
Patent GB-1492921-A (GB)
Title: Method of processing hops to obtain bitter substances
IPC: A23L27/10
Filed: 1976-04-02
Abstract: 1492921 Processing hop extracts CENTRE DE RECHERCHES ET DE DEVELOPPEMENT TECHNIQUES PRODUITS ALIMENTAIRES DIT 2 April 1976 [2 April 1975 16 Dec 1975] 13511/76 Heading C2C A method of processing hops to obtain bitter substances comprises subjecting a purified hop extract to direct isomerization of the alpha acids using the ethoxide of an alkaline earth metal in suspension in anhydrous ethanol, separating the iso-alpha and beta acids by means of a pulsating column, isolating the resultant iso-alpha acids, transforming the beta acids into alpha acids, and then treating the solution by isomerization to obtain iso-alpha acids or salts thereof.
Patent GB-1409191-A (GB)
Title: Photoflash unit and reflector unit therefor
IPC: G03B15/04
Filed: 1973-03-21
Abstract: 1409191 Photographic flash apparatus GENERAL ELECTRIC CO 21 March 1973 [31 March 1972] 13675/73 Heading G2X A multiple reflector unit for two photo-flash lamp arrays comprises a pair of complementary plastics moulding reflector panels 17 each having a row of side-by-side cavities in its front side formed with reflecting surfaces defining individual lamp reflectors 18, the reflector panels being mounted in aligned back-to-back relation with their reflectors facing outwardly in opposite direction and located in staggered nested relation, spacer shoulder means being provided on the rear sides of the reflecting panel and abutting one another to locate the two opposed reflector panels in predetermined back-to-back relation with their nested reflectors spaced at a predetermined distance apart; the shoulder means comprise (a) stiffening rib means (e.g. flanges 32, 33) adjacent the top and bottom longitudinal edges of the panels and/or mating pins and sockets 26, 27, which serve to position and hold the two reflector panels together in their assembled position. Reference has been directed by the Comptroller to Specification 1287599.
Patent GB-382897-A (GB)
Title: Improvements in miners' safety acetylene lamps
IPC: F21L23/00
Filed: 1932-05-12
Abstract: <PICT:0382897/IV/1> p  <PICT:0382897/IV/2> In a miner's safety acetylene lamp comprising a water chamber 10 and a carbide chamber 11 separated by a partition 26, the water passes to the carbide chamber through a valve 37 arranged in a depending tube 31 which is open to the atmosphere through an aperture 36 and communicates with the chamber 10 only through an aperture 32 near its lower end, the aperture 32 lying under a depending flange 33.  The valve 37 is manually operated through a finger-piece 39 and spindle 38, and when the valve is open the flow of water continues so long as the effective head of water exceeds the pressure in the carbide chamber 11.  To maintain a constant head of water in the tube 31 until the greater part of the water in the chamber 10 has been used, a pipe 42, Fig. 3, open to the atmosphere, is provided in the chamber 10.  When the chamber 10 has been filled with water through the aperture 28 and the airtight cap 30 has been replaced, an effective head of water, corresponding to the height of the lower end of the pipe 42 above the top of the valve stem 40, is maintained in the tube 31 until the level in the chamber 10 falls below the lower end of the pipe 42.  To relieve excess pressure in the carbide chamber, a pipe 43 is provided extending to above the top of the chamber 10 and arranged within a pipe 44 reaching nearly to the bottom of the chamber 10.  The generated gas passes to a burner 12 through a felt pad 50 and apertures 51 in a tube 49, the flow being controlled by a valve 52 operated by a handle 58; the lamp can thus be adjusted for gas-testing purposes.  A frictional igniting device 59 is provided, the device being carried on a spindle 60 passing through the ring 21 supporting the glass 13; the spindle 60 has a square end and is engaged, as required, by a square tube, Fig. 4 (not shown), having a head which enables it to be rotated. A reflector 27 is mounted behind the glass 13, and the chimney 15 surrounding the gauzes 14 is fitted with an asbestos-lined cap 17. The carbide chamber 11 is charged by unscrewing it from the base ring 24 and removing the cover 47 which supports the burner 12.