baber/WOPTO huggingface dataset:
Patent GB-1146701-A (GB)
Title: Reversible gravity concrete or mortar mixer
IPC: B28C5/08
Filed: 1966-03-28
Abstract: 1,146,701. Concrete mixers. P. AUGUST. 28 March, 1966 [28 Jan., 1966], No. 13596/66. Heading B1C. In a concrete mixer of the type having a rotatable drum reversible to discharge it, the drum support collars 11, 12 are driven by a reversible motor 1. A skip-hoist (not depicted) is operated by a winch 9 driven from the drum shaft 6 through chain gearing 3, 5, reversing gearbox 8, and a free-wheel which is interposed between the gearbox and winch. In its raised position the skip discharges with the mixing drum and moves a reversing lever from a position 10 to position 10' to reverse the gears 8. The skip then falls by gravity but under control of the free wheel; the gearbox 8 has different speed ratios for the two directions of rotation so that the skip is lowered faster than it is raised. After the skip has been replenished the lever is returned to position 10, and the motor also reversed to discharge the mixer. The motor is then switched off, reversed and restarted in its original direction of rotation whereupon the cycle is repeated.
Patent GB-547383-A (GB)
Title: Improvements in domestic fire-places and fire-grates
IPC: F24B1/193
Filed: 1941-10-23
Abstract: 547,383. Fireplaces &c. TUOHY, P. J. Oct. 23, 1941, No. 13663. Convention date, May 2. [Class 126] A fire grate, particularly for peat, comprises a removable grid supported at or below hearth level by a surrounding plate extending forwards of the grid, shaped rearwards and sidewards to fit the fireplace, and adapted to rest and extend inwards on all sides over the lips of an ash-well formed in the fireplace, the front of the plate being provided, at hearth level, with openings through which air can pass directly to the ashwell and thence through the grid. The grid 1, which may be fitted underneath with a sliding damper, rests in an opening in a plate 2, the back 2d and sides 2c of which are shaped to fit the fireplace, while the front is provided with perforations 2e, controlled by a sliding shutter 6 and leading to the ashwell. A front breast 4 is provided.
Patent GB-1507023-A (GB)
Title: Means for protecting hazardous areas against electrical failure
IPC: H02H3/44
Filed: 1975-06-24
Abstract: 1507023 Oscillators NATIONAL RESEARCH DEVELOPMENT CORP 24 June 1975 [27 March 1974] 13679/74 Heading H3T [Also in Division H2] Oscillators.-A Hartley transistor oscillator utilizes two transistors 73 working in push-pull, the feedback coil 76 being connected between their bases in parallel with oppositely-poled diodes 78. Oscillations may be suppressed by applying a control signal (70) to switch on auxiliary transistors 91, thus shorting the bases to earth. Switching circuits.-A fail-safe circuit for switching on an SCR 71 in response to an input signal (70) comprises an oscillator 73-78 whose rectified output normally applies a negative bias to the SCR gate 87, and transistors 91 rendered conductive by an input signal to inhibit oscillations, thus removing the negative gate bias to enable auxiliary biasing network 88 to trigger the SCR.
Patent GB-691501-A (GB)
Title: Preparation of hyaluronidase
IPC: C12N9/26
Filed: 1951-06-08
Abstract: The invention comprises a method for the concentration and purification of hyaluronidase starting with an aqueous solution thereof free from tissue and containing an acid buffer system at pH 4.0-5.0 and strong electrolyte to make the ionic strength 0.1-0.25; such a solution is cooled to 0 DEG  C., alcohol is added to give a concentration of 30-40 per cent by volume, when some hyaluronidase is precipitated; the solution is then cooled to -5 DEG  C. or below and further alcohol is added to give a volume concentration of at least 61 per cent, when more hyaluronidase is precipitated and is separated at - 5 DEG  C. or below.  If desired, one or more intermediate additions of alcohol are made, e.g. to give a volume concentration of 50-55 per cent.  The precipitated hyaluronidase-containing material may be separated after any or all of the additions of alcohol.  It may then be dissolved in water and lyophilized to give a dry preparation substantially free from inactive proteinaceous materials. Examples are given of the process using acid sodium acetate as buffer and sodium chloride as electrolyte.  Other suitable buffers and electrolytes are mentioned.  Specifications 651,544 and 651,545 are referred to.
Patent GB-716318-A (GB)
Title: Improvements relating to wheels, pulleys or the like
Inventor: MOORE WILLIE
IPC: F16H55/36
Filed: 1951-06-09
Abstract: 716,318. Pulleys. MOORE & SCHOLES (ENGINEERS & FOUNDERS), Ltd. June 3, 195 [June 9, 1951], No. 13720/51 Class 80 (1) A wheel or pulley is formed of a body portion A of aluminiun or aluminium alloy cast upon a centre portion B of a harde metal such as cast iron, steel gun-metal &c. The centre por tion B may have a centra enlarged portion C.
Patent GB-271649-A (GB)
Title: Improvements in or relating to apparatus for generating oil gas
IPC: F02M21/00
Filed: 1926-05-31
Abstract: 271,649. Hodgson, A. E., and Jones, N. C. May 31, 1926. Oil gas.-The generator of a combined oil gas generator, scrubber and mixing and filtering device comprises a lined steel drum a with an annular air admission chamber c and two or more perforated baffles f on to which oil is admitted through a fixed feed valve t and a heating coil h; or the oil supply may be regulated by a needle valve s connected to the engine throttle 31. An oil burner for starting up, supplied with oil and air under pressure from tanks 8, 5, on the cover is provided at the base of the generator. The gas exit pipe k surrounds an air admission tube j and leads to a scrubber S which includes baffles 10, a filtering chamber 11 containing coke, metal shavings &c., and a cooler 14 in which the gas passes through waterimmersed tubes 13. A mixing and filtering receptacle M to which the gas passes, together with air admitted through an inlet 28, comprises two concentric drums 18, 21, the annular chamber 19 having baffles 23 and an outlet 22 diametrically opposite to the inlet pipe 27, through which the mixed gas and air passes into a filter chamber 20 having an outlet 25. In operation, the generator is first heated by the burner at the base with the lid o off. The lid is then closed, and the air inlet 28 opened, and regulated quantities of oil and air are allowed to enter the generator through the valve t and valves m respectively, the burner being shut off. When ignitable gas issues from opening 28, the throttle 31 to which the variable feed valve s is connected is opened and the valve t closed. A three-way connection 32, having a pipe 34, through which petrol may be supplied to the engine for starting up, is dispensed with if the gas is used for heating purposes.
Patent GB-1129979-A (GB)
Title: Drives for spinning machinery
IPC: D01H1/34
Filed: 1966-03-29
Abstract: 1,129,979. Control of two motors. ZINSERTEXTILMASCHINEN G.m.b.H. 29 March, 1966 [1 April, 1965], No. 13825/66. Heading H2J. [Also in Division D1] A machine in a textile spinning mill, especially a preparatory machine such as a carding- engine, a drafting frame, or roving frame has a main motor and a slow-speed auxiliary motor for driving it, and a switching device for starting and stopping the drive comprising at least one switch arranged on closing to actuate a first control circuit for starting the auxiliary motor and, on re-opening, to actuate automatically a second control circuit for starting the main motor at slow speed, the switching device also being provided with means for switching the main motor from slow to normal speed. In Fig. 1, the driving shaft of a main motor 17 projects from both sides of the motor. On one end is a pulley connected by a belt to a pulley 22 on the driving-shaft of a roving-frame. Above the motor is an auxiliary motor 25 connected by a belt to a pulley mounted by a oneway clutch on the other end of the shaft of motor 17. Thus, motor 25 drives the frame through the motor 17, but when motor 17 is operative it does not drive motor 25. In another form, the motors drive the frame separately, motor 25 being coupled to the framepulley 22 by gearing and a one-way clutch. A circuit is described embodying the following arrangements: (a) there are a number of alternative start buttons for the auxiliary motor and of alternative start and stop buttons for the main motor disposed at various places about the machine; (b) when the frame is to be driven by the auxiliary motor, the motor runs only as long as the starting button is depressed; (c) when a start-button of the main motor is depressed, the auxiliary motor is first started and runs as long as the button is depressed. When the button is released, the motor stops and the main motor is switched-in to run at slow speed, a resistance being included in its circuit. After an interval determined by a time-relay, the resistance is shorted, and the main motor runs at full speed. The main motor may be a star-delta motor, the star-circuit being employed to run the motor at slow speed and the delta circuit to run the motor at normal speed.
Patent GB-986385-A (GB)
Title: Anti-tumor agent hilamycin and process for the production thereof
Filed: 1961-04-17
Abstract: <PICT:0986385/C2/1> The antitumour agents and antibiotics Hilamycins A, B and C are obtained by cultivating a strain of Streptomyces rochei var. hilamyceticus in an aqueous nutrient medium under submerged aerobic conditions, preferably at 25-35 DEG  C.  Hilamycin A is a white solid or colourless syrup soluble in alcohols, acetone, esters, benzene and in water at alkaline pH, but insoluble in water at acid or neutral pH, petroleum ether and hexane; having a U.V. maximum at 235-240 mm ; having an I.R. spectrum as shown in Fig. 2; giving negative ferric chloride and Tollens reactions; having elemental analysis C=69.22, H=9.74 and (a )25 DEG D=0.  Hilamycin B is a colourless syrup, having similar solubilities to Hilamycin A; a U.V. maximum at 200 mm ; I.R. bands at 3360, 3200, 2940, 2880, 1725, 1705, 1660, 1458, 1437, 1375, 1240, 1160, 1100, 1040, 964, 818, 745 and 695 cm.-1; elemental analysis C = 66.24, H = 8.05, O = 22.53 and N = 1.16 and (a )20 DEG D = 63 DEG  (1% in methanol). Hilamycin C is a substance which is separated from Hilamycins A and B by its solubility in hexane or petroleum ether and has U.V. maxima at 226 and 258 mm , has I.R. bands at 2910, 2850, 1700, 1473, 1431, 1406, 1347, 1304, 1285, 1265, 1245, 1225, 1206, 1185, 1095, 932 and 712 cm.-1 and is active against bacteria.  The antitumour agents Hilamycins A, B and C are purified by (1) extraction of the culture filtrate at an alkaline pH with an organic solvent and addition of a non-solvent thereto, (2) transferring them from aqueous solution to an organic solvent at acid or neutral pH, (3) transferring them from the organic solvent solution to an aqueous solution at weak alkaline pH, (4) precipitating them from aqueous solution by addition of acid or (5) adsorbtion of an alkaline extract of the culture filtrate on a phenol type ion exchange resin.  The antitumour agents are separated from each other by (1) passing an organic solvent solution thereof over active carbon, eluting Hilamycin B and then A with methanol-acetone and Hilamycin C with methanol-benzene or (2) counter-current distribution.  The antitumour agents are used to treat mouse leukaemia by intravenous injection.
Patent GB-1111029-A (GB)
Title: Process for the preparation of epoxide resins
IPC: C08G65/28
Filed: 1967-03-28
Abstract: Soft resins are prepared by reacting 10 moles of triglycidyl isocyanurate, having an epoxide oxygen content of at least 14%, with 1.5-6 moles of at least one thiophenol or phenol.  The phenol or thiophenol may be unsubstituted or contain substituents which do not react with epoxy groups, e.g. alkyl, alkoxy, halogen or nitro groups. Reaction may take place at 110-150 DEG  C.  The resins may be hardened with conventional epoxy resin curing agents, e.g. polycarboxylic acid anhydrides, polyamines or Lewis acids.
Patent GB-333211-A (GB)
Title: Improvements appertaining to let-off mechanism for looms
IPC: D03D49/06
Filed: 1929-05-06
Abstract: 333,211. Booth, J. W. May 6, 1929. Letting-off warps. - In frictional let-off mechanism of the type wherein under the control of a detector a contacting with the warp on the beam, a weight h is moved towards the fulcrum of a lever k connected to the beam - braking mechanism, the detector actuates a flexible connection d, which is connected to the weight and extends through a guiding-tube g fixed to the lever k and so that slight movements of the lever do not materially alter the position of the weight. The part d may be secured at one end to a fixed part f and pass around a pulley c on a sliding bracket b carrying the detector, whereby amplified movements of the weight h with respect to the detector movements are produced under the action of a spring t. Additional pulleys may be used to give further amplification. Other arrangements are described to give this amplified. movement.
Patent GB-290299-A (GB)
Title: Improved diaphragm for loudspeakers
IPC: H04R7/18
Filed: 1928-05-12
Abstract: 290,299. Loewe, S. May 13, 1927, [Convention date]. Diaphragms, - In order to avoid disturbing vibrations in a diaphragm, a conical diaphragm is supported at a number of points 3, Fig. 1, formed between the peripheral arcs 2. The Specification as open to inspection under Sect. 91 (3) (a) also describes a diaphragm provided with an annular series of holes 7, Fig. 3, (Cancelled) in order to effect a loose coupling between the centre of the diaphragm and its edge. This subject-matter does not appear in the Specification as accepted.
Patent GB-567135-A (GB)
Title: Steel articles or components and method of producing the same
IPC: C21D1/10
Filed: 1943-09-01
Abstract: 567,135. Making bars, bolts, &c. NEWALL, A. P. Sept. 1, 1943, Nos. 14255/43 and 5458/44. [Classes 83 (ii) and 83 (iv)] [Also in Group II] Molecular structure, altering by mechanical treatment.-A steel article or part, having a core with high tensile strength and ductility, a surface resistant to wear and an intermediate layer with a high resistance to fatigue, is made from a cylindrical bar or blank by heat treating to produce the quality desired in the core, then cold swaging all over or only at selected places, e.g. to produce a waist, and finally heating superficially by electric induction and quenching. A screw-thread may be rolled in a non- waisted part of the article before the final heating, if desired. The method can be used for making gudgeon pins, spring pins and shackle bolts for motor vehicles, track pins for caterpillars, waisted bolts or studs, &c. Specification 559,838 is referred to.
Patent GB-895821-A (GB)
Title: An improved apparatus for preheating plastic material prior to compression moulding
IPC: B29B13/02
Filed: 1957-05-04
Abstract: 895,821. Preheating moulding material. GILBERT, N. W. May 5, 1958 [May 4, 1957], No. 14289/57. Class 87(2). [Also in Group XI] Thermosetting moulding material is preheated prior to moulding by pushing pellets of the material from a trough 15 through an electrically heated cylinder 3 by means of a piston 22. The preheated pellets are discharged on to a trough 18. The temperature is thermostatically controlled. Two cylinders may be mounted side by side. A thermometer may be provided.
Patent GB-1176083-A (GB)
Title: Coin-Operated Time Meter, e.g. Parking Meter.
IPC: G07F17/24
Filed: 1967-03-29
Abstract: 1,176,083. Parking meters. C-A. ANDERSSON & CO. K.B. 29 March, 1967 [1 April, 1966], No. 14324/67. Heading G4V. A parking meter adapted to be operated by coins of three denominations comprises a coin carriage 310 receiving a coin in an appropriate slot 401-403, a fixed gauge plate 307 having a stepped aperture, a handle 383 rotatable to move the coin carriage over the gauge plate whereby a coin therein slides over the aperture until dropping through into a coin box, a coin follower 311 movable by engagement of a coin in the carriage with a corresponding finger 411-413 on the follower to adjust the position of a cam 353, and a two-part coupling controlled by the cam 353 to transmit device from the handle 383 to a pointer 361. The coin carriage 310 is H-shaped in crosssection and has a depending flange co-operating with a cam 317 on a shaft 346 rotatable by handle 383. The coin follower has fingers 411- 413 extending into the aperture in gauge plate 307. The fingers are spaced varying amounts from their corresponding coin slots 401-403 whereby the distances moved by the coin follower are proportional to the value of the coin inserted. A gauge plate in the meter housing ensures that the coin enters the correct coin slot 401-403. The coin follower pivots a two-armed lever 309 to move a bar 358 rearwardly which carries the cam 353 having a stepped surface, Fig. 6 (not shown). The two-part coupling consists of gears 333 and 351, the gear 333 carrying a pivoted pawl 341 and being rotated by a handle 383 through a lever 337 fast with shaft 336. A pin 345 on gear 333 engages aperture 344 in the lever 337 to provide a lost motion coupling. The pawl may be held clear of the gear 351 through part of its journey by cam 353. Drive is transmitted from gear 351 through shaft 354, pinions 350, shaft 347 and pinion 348 to the pointer 361. Rotation of gear 333 winds up a clockwork mechanism through gear 360. The coin carriage is slotted at 406 to engage a pin 407 on a flag 369. The latter is raised during movement of the handle 383 to display instructions on use. The gear 461 fast with pointer 361 carries a pin engaging a notch in a flag 368 to raise the latter when the hiring time has expired. The pointer is reset to zero on initial movement of the handle by means of a cam on shaft 346 co-operating with a two-armed lever on shaft 347 engaging a lug on gear 461. A stop (416) on cam (417) engages a lug on the coin follower to prevent operation of the meter in the absence of a coin, Fig. 4 (not shown).
Patent GB-1493002-A (GB)
Title: Clutch disc
IPC: F16F15/123
Filed: 1975-04-08
Abstract: 1493002 Mounting clutch discs on hubs FICHTEL & SACHS AG 8 April 1975 [13 April 1974] 14346/75 Heading F2U A clutch disc assembly comprising first and second cover discs 3, 4 connected together as by rivets 6 is resiliently-mounted on a hub 1, 2 by means of helical springs 7 mounted in windows in the parts, a control plate 9 being provided between the hub disc 2 and the cover disc 4 carrying the linings 5 and having at least one bent-over lug 12 pressed against an edge of a corresponding window with a corresponding helical spring; the friction disc 13 between the control plate and the cover disc has a greater friction value than that of the friction disc 14 between the control plate and the hub disc so that upon traction (anticlockwise) the control plate is held by the helical spring and the cover discs slip with the greater amount of friction and so that upon thrust by the mass of the vehicle (clockwise) when the hub disc moves first, the control plate is released from spring pressure, and is taken along by the cover discs and slips with the smaller amount of friction on the hub disc. As shown, a further friction disc 15 of small friction value and an intermediate disc 16 is provided and the whole assembly is pressed together by a spring 8. The friction disc 13 may be made of an organic composition and the friction discs 14, 15 may be made of P.T.F.E. In another embodiment, Figs. 4 to 6 (not shown) the control plate (10) has two lugs (12) for engaging windows in the hub disc (2) and two lugs (17) for engaging in openings (18) in the cover disc (4), the latter lugs ensuring frictional drive of the control plate by the cover disc in the thrust direction when the difference of the friction values is not sufficient.
Patent GB-501433-A (GB)
Title: Improvements in or relating to desk lamps
IPC: F16M11/14
Filed: 1937-05-24
Abstract: 501,433. Ball joints. MENSE METALLWARENFABRIK, O. May 24, 1937, No. 14378. Void. Convention date, May 23, 1936. [Class 65 (ii)] [Also in Group XIV] A jointed lamp bracket comprises a number of tubular arms 5 connected together and to the lamp casing 1 and the support 9 by double ball-and-socket joints 6. As shown the ends of the tubes are shaped to accommodate the balls ; in a modification the balls are spring- pressed against sleeves screwed on the tube ends.
Patent GB-120410-A (GB)
Title: Improved Meand for Rendering Porous Vessels Impervious to the Fluid which they are Intended to Contain.
Inventor: HADFIELD GEORGE HUGH
IPC: B31B1/74
Filed: 1917-10-04
Abstract: 120,410. Hadfield, G. H., and Bawtree, A. E. Oct. 4, 1917. Drawings to Specification. Coating processes. - The interior surfaces of paper, cardboard, &c. containers for paints &c. are coated uniformly with a protecting composition by inserting a quantity of the composition into the container and then rotating the container at a high speed about a horizontal or other axis, so that the composition is spread over the surface in a uniform layer by the action of centrifugal force. The composition may be poured into the container or applied by means of a brush. In addition to the above described operation, in order to seal the joins between the ends and body of the container, the composition may be applied to the ends and to the edges of the body before effecting the junction. To ensure the coincidence of the axis of the container with the axis of rotation, the container is held preferably in a chuck, such as is used in an ordinary lathe, or in a rotating tube. Specification 19381/99 is referred to.
Patent GB-150807-A (GB)
Title: Improvements in or relating to drying processes
IPC: F26B17/28
Filed: 1919-06-06
Abstract: 150,807. Boberg, T., and Techno-Chemical Laborairories, Ltd. June 6, 1919. Film evaporators; vapours, utilizing for effecting further evaporation; evaporating plant.-Peat and other substances are dried in two stages; first on the surface of a drum heated internally by the vapour arising from the substance, the temperature of which has been raised by compression as described in Specification 150,068, with or without the addition of steam from other sources; second, in a current of hot air, furnace gases or the like. Fig. 1 shows the arrangement of a plant for treating peat. The peat pulp is heated in surface heaters b, c, and a direct contact heater d and thence passes to a trough e into which dips a rotating drum f. The overflow from the trough e falls into a trough t whence it is returned to the heater d. The partly dried material is removed from the drum f by a scraper i and passes to a trough k containing a worm-conveyer k<1> whence it passes to a briquetting press m. Furnace gases from a boiler n furnishing steam for the plant pass through the trough k in the opposite direction to the material. The steam from the boiler n drives a turbine p the exhaust from which heats the drum f which is also heated by the vapour from the peat, which is compressed by a pump h till it reaches a temperature of about 105‹ C. Steam is taken from an intermediate stage of the turbine p to drive the briquetting press m, and the exhaust from the press is passed to the drum f. Surplus vapour from the material and waste steam from the drum are utilized in the heaters c, d, and water of condensation is used to heat the heater b.