baber/WOPTO huggingface dataset:
Patent GB-1465057-A (GB)
Title: Devices for indicating a change in physical state of a fluid  substance
IPC: G01N25/58
Filed: 1974-06-17
Abstract: 1465057 Detecting physical change of state in a fluid stream HAWKER SIDDELEY DYNAMICS Ltd 17 June 1974 [15 June 1973] 28564/73 Heading G1N Apparatus for this comprises a surface 1 in the stream, a Peltier effect heat pump 2 to keep the surface closer to the temperature at which the change occurs than the stream by a temperature difference #t, means 3, 4 to detect #t, means 11 to adjust the power input to the pump in response to the detected signal to keep #t approximately constant, means 14 monitoring this power input and generating an output control signal when it changes in a predetermined way. Tube 15 is parallel to the air-stream in duct 16. Junction 4 of a thermocouple senses air-stream temperature and junction 3 is in contact with surface 1 around which semi-conducting heat pump elements 2 are spaced equiangularly in a ring. 1 and 5 are thin electrically-insulating films. Control box 7 mounted on duct wall 17 contains electrical components. Amplifier 11 is connected to elements 2 via conducting segments 12 and leads 6, which with thermocouple leads 13 pass through support strut 8. A decrease in #t is minimized by elements 2, increasing their transference of heat from surface 1 to hot surface 5 cooled by the air-stream. When ice forms on surface 1, initial release of latent heat causes a raised heat-transfer coefficient and thus the amplifier output to rise, but rapid blocking by ice then insulates surface 1 and causes the amplifier output to become very low. Generator 14 generates a signal for an air-stream temperature control whenever a large drop in output occurs. On the subsequent rise of air-stream temperature, the amplifier output reverses and the heat pump reverses to melt the ice. The device may be part of an aircraft-air conditioning system. Other uses are for warning of deposition of heavy oil fractions or of condensation in a gas flow or of boiling in a liquid, for which surface 1 is a hot surface.
Patent GB-730459-A (GB)
Title: High pressure pumping unit for fire-fighting purposes
Inventor: HATHAWAY LAWRENCE
IPC: F04D29/12
Filed: 1953-10-16
Abstract: 730,459. Centrifugal pumps; stuffing-box substitutes. HATHAWAY, Ltd., L. Oct. 16, 1953, No. 28579/53. Classes 110 (1) and 122 (5). A single-stage centrifugal pump has annular seals, of substantially equal diameters, between the opposite faces of the impeller and the adjacent casing walls, each seal comprising a carbon ring supported from the pump casing and engaged by a steel ring driven from the impeller by at least one pin extending from the impeller and passing through a slot in the steel ring, the latter being biased towards the carbon ring. A steel ring 25 is driven by the pump impeller 14 through three pins 28 which engage slots in the periphery of the ring, and is pressed by three springs 30 into sealing contact with a stationary carbon ring 21. Rubber seal rings 20, 34 are provided. The springs are assisted by water pressure acting upon the rear surface of the steel ring 25, the external diameter of the cylindrical portion 32 being made less than the external diameter of the carbon ring so that the area of the rear surface subjected to the pressure of the pumped water is greater than that of the front surface. To facilitate assembly, the steel ring 25 is prevented by the engagement of lugs 36 behind projections 38 from being displaced from the impeller by the springs 30 during assembly. A similar sealing means is provided at the back of the impeller 14, and its carbon ring 23 is of the same external diameter as the carbon ring 21 so that the thrusts on the radial faces of the impeller exerted by the pumped water are identical, thus providing axial balance of the impeller. The pump is driven by the engine of a fire-fighting vehicle. To prevent overspeeding, a governor associated with the driving shaft is arranged to open electric contacts in series with the low tension supply to the ignition means of the engine in the event of the pump speed exceeding a predetermined value.
Patent GB-636277-A (GB)
Title: Improvements relating to the recovery of bitumen and fibres from bituminized paper and like products
IPC: D21C5/02
Filed: 1947-10-27
Abstract: 636,277. Recovery of bitumen and fibre from waste paper &c. RAMSEY, A. R. J. (Australian Paper Manufacturers, Ltd.). Oct. 27, 1947, No. 28671. [A Specification was laid open to inspection under Sect. 91 of the Acts, May 19, 1948.] [Class 96] Bitumen and fibres are separately recovered from paper or board &c., e.g. from duplex kraft paper laminated with bitumen, by agitating with an emulsified bitumen solvent, e.g. kerosene, at a temperature, e.g. 30‹ to 98‹ C., consistency, e.g. ¢ to 5 per cent, and pH value, e.g. 7 to 10, such that particles of bitumen and solvent rise to the surface. A partial separation may first be effected by disintegrating at, e.g. over 20‹ C. and screening.
Patent GB-1381985-A (GB)
Title: Drying of a fabric
IPC: D03D47/00
Filed: 1972-06-19
Abstract: 1381985 Drying fabrics on looms RUTI MACHINERY WORKS Ltd 19 June 1972 [18 June 1971] 28673/72 Heading D1E A device for drying a fabric in a textile machine, for example a water jet loom, comprises a trough 20 over which the fabric 11 passes and having a chamber 30 extending along its bottom, with slots 33 along its sides which direct air onto and through the fabric. The side walls 31 of the container and the top 32 may be adjustable in height to vary the width of the slots 33. Ducts 35 supply air which may be heated to the chamber 30. Water may be scraped off of the fabric on the loom, before the fabric reaches the drying device, by a hollow breast beam 40 having a weftwise slot 41 with an edge 42 which remove the water. A sub-atmospheric pressure may be maintained in the breast beam 40. The drying device may be used on looms for weaving base fabrics for carpets, to dry the glue which is applied to the fabric, before winding the fabric on the cloth roll.
Patent GB-191515-A (GB)
Title: An automatic regulator for electric, steam or hot water radiators, the same being also applicable for gas heating fire alarm devices, refrigerating control and other temperature control uses
IPC: G01K5/16
Filed: 1921-11-26
Abstract: 191,515. MacLaren, R. Nov. 26, 1921. Electromagnetic and m e r c u r y switches; latching and unlatching.- Relates to thermostats for controlling the temperature of electric or hot water radiators or heating and cooling apparatus of the type comprising a double U-tube A, A<1>, Fig. 1, containing expansible fluid co-operating with a two solenoid relay which is provided with a. locking-device and controls an electric switch. Maximum and minimum terminals b<1>, a<1> and an intermediate terminal c<1> in the U-tube A<1> are connected in circuit with mercury cups y<1>, y<2> Fig. 3, contacts S, S<1> on a rocking-arm R, and solenoids J, K for the purpose of rotating a shaft O controlling the main switch. In the arrangement shown in Figs. 3 and 4, the solenoid core L has a pin M engaging a slotted arm on the shaft O, which carries at its other extremity a rocking arm T with contacts V for completing or breaking the main electric circuit. In order to hold the solenoid core L in its extreme positions against vibration, small pivoted hooks e controlled by solenoids W, X arranged in series with the solenoids K, J respectively are adapted to co-operate with catches d on the solenoid core. The double U- tubes, relay solenoids, and rocking arms R, T are preferably all mounted on a single stand.
Patent GB-1069588-A (GB)
Title: Sensitive touching-plate for a time-measuring installation
IPC: G07C1/24
Filed: 1965-07-07
Abstract: 1,069,588. Timing races. M. GATSONIDES. July 7, 1965 [July 9, 1964; May 4, 1965], No. 28755/65. Heading G1J. [Also in Division H2] A touching plate 3 of perforated plastics material has an elastic tube or hose 10 fixed thereto via the perforations (9), touching of the plate causing air in the tube or hose to be displaced to actuate a pneumatically-operated switch R for switching an associated timer. The plate 3 is suspended by screws from the wall 1 of a swimming pool or basin between the slots 2 for the ropes defining the lanes.
Patent GB-484968-A (GB)
Title: Improvements in electric resistance heating apparatus
IPC: H05B3/00
Filed: 1937-10-21
Abstract: 484,968. Electric heating resistances. CHALLET, E., and ENTREPRISES ELECTRIQUES FRIBOURGEOISES. Oct. 21, 1937, No. 28778. Convention date, Jan. 13. [Class 39 (iii)] An insulating support 1 for an electric heating resistance is so constructed that it only makes contact with the supporting surface 3 at parts adjacent its edges so that an insulating layer 2 of imprisoned air is formed below the insulator. This may be effected by making the bottom of the insulator concave, or by making the supporting surface concave or by forming ridges on the bottom edges of the insulator.
Patent GB-1079197-A (GB)
Title: Semiconductor rectifier devices
IPC: H01L21/00
Filed: 1966-06-27
Abstract: 1,079,197. Semi-conductor diodes. SIEMENS-SCHUCKERTWERKE A.G. June 27, 1966 [June 25, 1965], No. 28786/66. Heading H1K. A monocrystalline semi-conductor wafer containing a PN junction 4 has one major face completely covered by a first electrode 5 of which the outer face is covered by a first contact plate 6, a central region of the other major face being covered by a second electrode 7 which is of smaller area than the first and which has a second contact plate 8 thereon; the inner face of this second contact plate 8 is larger than the outer face of the smaller electrode 7 (with which it is in contact) and extends beyond it all round its periphery through less than 1 mm., whereas the PN junction 4 emerges at the surface of the wafer in a line which is nowhere less than 1 mm. from the smaller electrode 7. A channel (10, Fig. 2) surrounding the smaller electrode 7 may be etched or sand-blasted in the wafer to a sufficient depth to cut through the PN junction 4, and the wafer and/or the second contact plate 8 may be bevelled at the edge so that the face in contact with the smaller electrode 7 is smaller than the face remote from it (Fig. 3). Those parts of the surface of the wafer not covered by the electrodes are coated with a lacquer 9.
Patent GB-650367-A (GB)
Title: Improvements relating to the manufacture of therapeutic preparations
IPC: A61K47/10
Filed: 1948-11-05
Abstract: A therapeutic preparation is obtained by dissolving salicylic acid in oleyl alcohol so as to form a solution or a highly dispersible suspension.  Up to 10 per cent salicylic acid may be employed and terpineol may be added.  The products may be for internal or external application.  The Provisional Specification describes also preparations containing acetylsalicylic acid and other salicylic acid derivatives in higher aliphatic alcohols generally.
Patent GB-210492-A (GB)
Title: Torsional suspension for quick-period, sensitive instruments such as galvanometers, electrometers, and the like
IPC: G01R9/02
Filed: 1922-10-25
Abstract: 210,492. Lindemann, F. A. Oct. 25, 1922. Index hands and pointers; mounting and supporting indicating apparatus.-A torsion filament such as a fibre or wire is held taut between supports and carries at an intermediate point an indicating element having a moment of inertia smaller than such an element would have if provided with a mirror or with a pointer moving over a scale. The moving element is thus of short period and may be observed by means of a microscope or the like. Air damping may beavoided by enclosing the instrument in an exhausted casing. The filament and the frame on which it is stretched may be of materials having the same co-efficient of thermal dilation, for instance both may be of glass or silica. Twoaligned filaments extending from opposite ends of the moving element may replace a single one. In a galvanometer, the filament 10, Fig. 1, mounted in a yoke 11 has a rigid centre portion 12 at each end of which small magnets 13, 14 are attached. A pointer 17, of glass or silicaattached at right angles to the part 12, has at one or both ends cross-pieces 18, one of which is viewed through a microscope. An electrometer is provided with a similarly-mounted filament, which may consist of a silvered silica thread 10, Fig. 4. To the centre of the thread is attached a conductive pointer 17 with crosspieces 18 at its ends; or a pair of parallel pointers, one on each side of the thread and attached together at their ends, may be employed. The pointers may be secured together and to the thread by an electrodeposit of copper or the like. The invention may also be applied to viscosimeters and radiometers.
Patent GB-1394077-A (GB)
Title: Multiplexer interval detector
IPC: H04J3/04
Filed: 1972-06-21
Abstract: 1394077 Transmission DDI COMMUNICATIONS Inc 21 June 1972 [30 June 1971] 28990/72 Heading G4H  An interval detector for a pulsed message train with pulses occurring at a first frequency, comprises means comparing pulses at the same frequency from receiver means with pulses obtained by decoding one of n pulses from means developing checking pulses at n times the first frequency, so that a noise pulse out of order in the message pulse train changes the comparator output, the comparator controlling acceptance of the message train. The disclosure is included in Specification 1,394,075 (referred to).
Patent GB-592744-A (GB)
Title: Improvements in blower drives for internal combustion engines
IPC: B61C17/08
Filed: 1945-03-20
Abstract: 592,744. Pumps. HARPER, W. A., and REBBECK, SIR F. E. March 20, 1945, No. 29069/46. Divided out of 592,713. Drawings to Specification. [Class 7 (ii)]. A blower is driven through two similar slipping clutches which may be of the hydraulic, pneumatic or friction type, and which are coupled together in succession. The supply of fluid to the clutches is controlled by a valve operated by the engine starting lever, lag in the flow of liquid being provided so that, in starting, one coupling is first engaged and, in stopping, the other coupling is first disengaged. The lag is produced by a chamber or length of piping in the liquid connection.
Patent GB-965410-A (GB)
Title: Improvements in photoelectric devices for locating division lines and similar marks
Inventor: MEISTER GERHARD
IPC: G01D5/26
Filed: 1960-08-23
Abstract: 965,410. Photo-electric sensing of marks. CARL ZEISS JENA VEB. Aug. 23, 1960, No. 29167/60. Heading G1A. In a photo-electric device for sensing a fiducial mark for measurement or machine tool control, a pencil of rays projected from the mark enters a parallel slit 2, Fig. 1, where it is split into two beams 4,4<1>, by a system of prisms 3,3<1> and mirrors 9, 9<1>, 10, 10<1>, and the beams are directed alternately on to a photo-cell 11 by a rotating diaphragm 7. Modifications are described to compensate for differences in attenuation of the two beams within the device caused by changes in the angle of incidence of the pencil of rays. These may be either a rotatable mirror 14, Fig. 4, a slidable lens 16, Fig. 5, or take the form of specially shaped prisms 12,12<1>, Fig. 2, to replace 3,3<1>, in Fig. 1, these being started to effect this compensation.
Patent GB-387769-A (GB)
Title: Improvements in tubulous boilers
IPC: F22B21/22
Filed: 1931-10-21
Abstract: 387,769. Liquid, gaseous, and pulverulent fuel furnaces. JEZLER, H., 10, Stockerstrasse, Zurich, Switzerland. Oct. 21, 1931, No. 29254. Convention date, Oct. 27, 1930. [Class 51 (i).] Tubulous steam boilers having a heating chamber of circular section formed by closely adjacent water tubes are fired with pulverulent, liquid, or gaseous fuel tangentially introduced with air so that the burning fuel rotates and is positively guided by the tubes as it advances in spiral form to an obstruction at.the chamber outlet. A high pressure boiler formed of circular tubes 2 connected to a feed chamber 3 and a collecting chamber 4, has a water pipe screen 7 which may serve as a feed heater, and a superheater coil 10. The pressure within the tubes 2 is such that steam is not generated therein. Fuel and primary air are introduced through a nozzle 5 and auxiliary air or steam through nozzles 6, solid particles thrown from the gases collecting in a space 8. The Specification as open to inspection under Sect. 91 describes the provision of a combustion gas passage accommodating a superheater between the combustion chamber and collector. This subject-matter does not appear in the Specification as accepted.
Patent GB-470220-A (GB)
Title: Improvements in and relating to disgorgers
IPC: A01K97/18
Filed: 1936-10-28
Abstract: 470,220. Disgorgers; handles. ANDERSSON, A. W. Oct. 28, 1936, No. 29254. [Class 48] [Also in Groups XXII] A disgorger is made from an S-shaped rustless-steel bar 1 having one end formed as a claw 3 and the other end bent to form a handle 2, terminating at 4 with a gap to permit the bar to be secured to a waist-belt.
Patent GB-763209-A (GB)
Title: Substituted phenanthrene compounds and their preparation
Filed: 1952-12-19
Abstract: The invention comprises 4b-methyl-1,7-diacetoxy - 1,2,3,4,4a,4b,5,6,10,10a - decahydrophenanthrene - 4 - ol, and a decahydrophenanthrene compound of the formula <FORM:0763209/IV(b)/1> wherein Ac represents an acyl group and R represents hydrogen or an acyl group, and the preparation thereof by treating 4b-methyl-1,2,3,4,4a,4b,5,6,7,9,10,10a - dodecahydrophenanthrene - 1,4 - diol - 7 - one with an acylating agent to form the triacyloxy compound or a mixture of the triacyloxy and 1,7-diacyloxy compounds which may be separated by chromatography over acid washed alumina followed by elution with mixtures of ether and petroleum ether.  The above process may be modified in that the reactant is prepared by a process claimed in Specification 736,307.  Suitable acylating agents are the lower aliphatic carboxylic acid halides, e.g. acetyl chloride.  In the example 4b-methyl-1,4,7-triacetoxy-1,2,3,4, 4a,4b,5,6,10,10a - decahydrophenanthrene and the corresponding 1,7-diacetoxy-4-hydroxy compound are prepared.
Patent GB-1465713-A (GB)
Title: Smoke suppressants for resinous organic materials
IPC: C08K3/00
Filed: 1974-07-02
Abstract: 1465713 Smoke suppressants for resinous organic materials FERRO CORP 2 July 1974 [12 July 1973] 29371/74 Headings C3P and C3B A method for treating a resinous organic material to reduce the amount of smoke produced on combustion thereof comprises: (a) determining the amount of smoke produced on combustion of a sample of the material; and (b) reformulating the material to include therein one or more of iron, iron compounds and zinc compounds, of a nature and in such an amount that the amount of smoke produced on combustion of the reformulated material is less than that produced in step (a), and such that a bulk char residue is formed instead of a finely divided effluent char (i.e. airborne particles). In the examples, polymer resins selected from an unsaturated polyester, P.V.C., A.B.S., an epoxy resin and an epoxy novolac resin are treated, the additives used being ferrous oxalate, ferric oxide, ferrous fumarate, hydrated ferric oxide, ferrous silico-fluoride, ferrous fluoride, ferrous ammonium sulphate, ferrous ethylenediamine sulphate, ferrous tartrate, ferrous lactate, ferrous gluconate, ferrous and ferric phosphate, a mixture of zinc oxide and ferrous oxalate, ferric adipate, ferric o- and m-chlorobenzoate, ferric borate, ferric stannate, ferric naphthenate, iron nitride, zinc ethyl hexanoate, zinc borate, zinc oxalate, zinc octoate, zinc citrate, zinc fluoride, zinc oxide, zinc butyl benzoate, zinc undecylenate, zinc phosphate and zinc gluconate. The amounts of these additives in the examples were up to 15 parts by wt. per 100 parts by wt. of resin.
Patent GB-617471-A (GB)
Title: Slides for power presses
IPC: B30B15/04
Filed: 1946-10-02
Abstract: 617,471. Slides for power presses. RHODES, C. J. Oct. 2, 1946, Nos. 29415/46 and 5712/47. [Class 87 (ii)] The ram 4 of a power press is guided by slides comprising a pair of part-cylindrical slidebars 7 bolted one on the face of each side frame member 1 of the press and working in part cylindrical bearings 10 housed in part-cylindrical grooves in lateral extensions 9 of the ram. The slide-bars have longitudinal flats mating with flats machined on the press side members. Alternatively the slide bars 10 may be cylindrical and be located in longitudinal grooves in the press side members. Each bearing 10 comprises a pair of longitudinally spaced bushes of unequal length. The invention is described applied to a C frame crank press, the axes of the crankshaft, ram and slide bars of which are all in the same plane to minimise any tendency of the ram to rock in its guides. Specification 561,414, [Group XXII], is referred to.
Patent GB-657910-A (GB)
Title: Improvements in or relating to machines for coating ice cream slabs or other confections with chocolate or other coating medium
IPC: A23G9/24
Filed: 1948-11-12
Abstract: 657,910. Lifting dogs. MINOTT, A. Nov. 12, 1948, No. 29502. [Class 78 (iv)] [Also in Group VI] In a dip coating machine in which slabcarrying needles 18, at the ends of radial arms 16 of a rotary turret 15, are dropped into and lifted from a coating receptacle 17 by a camshaped fixed track 14, the slab is lifted out more quickly,.to provide a thinner and therefore more quickly drying coating by providing in the dropping gap 21, of 14, an auxiliary cam track 20 timed to drop and raise up quickly the arms 16 carrying the slabs. The cam track 20 is carried by an adjustable vertical lift'rod 19, moved up and down by a rotating cam 23 and coupled lever 22.
Patent GB-321044-A (GB)
Title: Improvements in geysers and other heaters for liquid
IPC: F24H1/20
Filed: 1928-10-12
Abstract: 321,044. Stow, A. A., and Jones, E. H. P. Oct. 12, 1928. Annular and internallyfired boilers. - A boiler which includes a pair of coaxial annular jackets 3, 4 containing liquid, with an intervening space 7. has a source of heat 11 associated with the smaller jacket so as to heat its inner wall 6. The cold liquid inlet discharges near a thermostat 22 controlling the gas supply to the burner 11. Cross tubes 26 may be fitted within the central annulus.
Patent GB-845171-A (GB)
Title: Improvements in drill-bits for combined rotary and percussive drilling
IPC: E21B10/58
Filed: 1958-09-16
Abstract: 845,171. Drill-bits. WICKMAN (SOUTH AFRICA) (PROPRIETARY) Ltd. Sept. 16, 1958 [Oct. 3, 1957; June 9, 1958], No. 29591/58. Class 83 (3). [Also in Group XXIII] A drill bit for combined rotary and percussive drilling comprises a hard insert 2, Fig. 1, with a negative rake cutting edge 4 having an included angle of approximately 80 degrees on each oppositely disposed wing 1, joined by a cutting edge 5 of an included angle between 105 degrees and 115 degrees, which may be above or below the level of the cutting edges 4. The cutting edges 4 are radiused at 12 and backed off at 13. The cutting edges 4, 5 may be shaped as in Figs. 6 and 7.
Patent GB-1216214-A (GB)
Title: Improvements relating to cop-tube changing apparatus
IPC: D01H9/10
Filed: 1968-06-21
Abstract: 1,216,214. Spinning; cop tube - charging. SCHUBERT & SALZER MASCHINENFABRIK A.G. 21 June, 1968 [24 June, 1967], No. 29645/68. Heading D1D. A cop tube-changing carriage in a ring spinning machine can be accurately aligned with the spindles. The carriage is rapidly driven along the rails 3 until switch 10 is tripped by cam 31 on the machine. The carriage thereafter moves slowly until switch 12, tripped by cam 32, stops it. Cam operated switch 11 initiates movement of a slide on the carriage at right angles to the direction of travel. The wide-mouthed centering socket 6 and member 61, either of which may be on the carriage or machine/floor, engage and ensure accurate alignment of the carriage with a spindle. A socket on the carriage is also connected to the machine so that the batteries of the carriage motor may be recharged and so far to operate the cop tube-charger. Rack rails 41, 41' and push bars below them are aligned vertically by short connecting pieces pivoted to rails 41' and having centering ends.