baber/WOPTO huggingface dataset:
Patent GB-703113-A (GB)
Title: Improvements in or relating to carburettors for supplying fuels of different volatilities to internal combustion engines
IPC: F02M1/00
Filed: 1951-10-16
Abstract: 703,113. Spray carburetters. ALLDAY, G. J. Oct. 16, 1952 [Oct. 16, 1951], No. 24073/51. Class 7(3) In a carburetter provided with means for feeding different fuels, e.g. petrol and paraffin, to a valve chamber 16 provided with a valve 18 for selecting the fuel, each fuel feed means comprises both a main jet 19 for the main supply of fuel to the chamber 16 and a compensating jet 20 having an air passage 27 associated therewith whereby at certain pressure conditions in the carburetter a fuel-air mixture passes through the valve chamber 16 to the fuel nozzles 31, 36. As shown diagrammatically in Fig. 1, the petrol and paraffin from float chambers 13, 7 respectively pass through the main jets 19 into passages 29 leading into recesses 6, 6<1> in the valve chamber 16 and through the compensating jets 20 to aerating chambers 27 from which the aerated fuel flows through passages 28 into the passages 29 and thence into the chamber 16, which chamber communicates through a passage 30 with the main nozzle 31 and through either passage 42 or 43 with the idling nozzle 36. The valve 18 is actuated by a solenoid 17 in circuit with a switch 2, operated by a thermostat located for example in the engine cooling system, and a manually controlled switch 1. When the engine is cold the valve 18 closes the recess 6<1> and the passage 43 whereby petrol is supplied to the main nozzle 31 and, through the passage 42, to the idling nozzle 36. When the engine becomes warm, the solenoid 17 is energized to lift the valve 18 to cut off the petrol supply and open the paraffin supply, the idling fuel now flowing through passage 43. In both cases at small engine suction, e.g. at a speed slightly above idling, aerated fuel from the jet 20 is drawn into the chamber 16 but as the suction increases the aerated fuel is cut off by the flow of un-areated fuel from the jet 19. Air is bled into the idling fuel passage past a valve 38. One or more of the passages 29 may open into the cylindrical wall of the chamber 16, and a small clearance may be left between the periphery of the valve and the chamber wall so that when the valve obscures one of the passages 29 a small flow of fuel escapes therefrom past the edge of the valve. In a practical arrangement, Fig. 2, the valve chamber 16 is formed in a block 10 having flat faces 11, 12, fitting against similar faces on a block 9 containing the float chambers and on a block 14 containing the mixing chamber, and the solenoid 17 is arranged beneath the block 10. An overriding hand control is provided to move the valve 18 if the solenoid 17 becomes inoperative. Specification 644,721 is referred to.
Patent GB-1191926-A (GB)
Title: Improvements in or relating to Vesicular Imaging
IPC: G03C5/60
Filed: 1967-05-24
Abstract: 1,191,926. Photolysable polymeric films. XEROX CORP. 24 May, 1967 [26 May, 1966], No. 24128/67. Heading C3P. [Also in Division G2] Photographic films for forming vesicular images (see Divisions G2-G3) comprise a polymer of unit formula: -(CH 2 -CYR-) n  (wherein Y is H or CH 3 , n is at least 2, R is -CO 2 X or -NHCO 2 X, and X is a C 2-8  aliphatic radical having a beta H atom). The polymer may be poly-(ethyl acrylate), poly-(t-butyl acrylate) or poly-(t-butyl-N-vinyl carbamate), and may be dissolved or dispersed in a resin of lower melting point (e.g. polystyrene or polydecamethylene sebacate). When exposed to electromagnetic radiation, e.g. U.V. radiation, the films undergo photolysis and liberate a gas, viz. CO 2  or an alkene.
Patent GB-1463758-A (GB)
Title: Nozzle area measurement
IPC: G01S13/08
Filed: 1974-05-31
Abstract: 1463758 Radiometric area measurement CONTROL DATA CANADA Ltd 31 May 1974 [11 June 1973] 24152/74 Heading H4D To determine the gross thrust F G  of a jet engine, a formula may be used where; A 8 =area of exit nozzle 14; P TN =total presssure at nozzle entrance; P SO = ambient static pressure, and P TN  can also be derived from the static pressure at nozzle entrance P SN  from a formula Items P SN , P SO  are measured by pressure transducers 27, 30 but area A 8  is measured by a radar assembly having an antenna arrangement 16 mounted on the end of an after body 11 in the jet nozzle. The amplitude of the reflected signal from the exit nozzle is determined by the radar 18 and gives an indication of the area A 8 . The radar may be CW or pulsed.
Patent GB-982947-A (GB)
Title: Process for the manufacture of ª‡,ª‰-unsaturated ketosteroids
IPC: C07J7/00
Filed: 1961-07-04
Abstract: a ,b  - Unsaturated - keto - steroids which contain a methyl group on the carbon atom in the b -position are prepared by heating a pyrazolinosteroid obtained by the diazomethane attachment to the carbon-carbon double bond of a D 1-3-keto- or D 16-20-keto-steroid which is not oxygen substituted at the 11-position at a temperature at or above 140 DEG  C. in the presence of an organic base, for example a base having a dissociation constant less than 10-6 such as quinoline, isoquinoline, quinaldine, collidine, lutidine, N,N-dimethylaniline, aniline and mixtures thereof.  Organic nitrogen bases having a boiling-point below 140 DEG  C. such as pyridine, may be used in which case the reaction is carried out under pressure. The preferred starting compounds for the above process have the general formula <FORM:0982947/C2/1> wherein R represents <FORM:0982947/C2/2> or an alkyl group, X represents hydrogen or the methyl group and the hydroxy group may be functionally converted, or the general formula <FORM:0982947/C2/3> wherein R1 represents hydrogen or a free or functionally converted hydroxyl group and R2 represents <FORM:0982947/C2/4> , <FORM:0982947/C2/5> or =O, and may also contain a D 4- or D 5-double bond or D 4,6-doubl bonds. Specifications 926,372, 948,269 and 965,090 are referred to.
Patent GB-774675-A (GB)
Title: Improvements in or relating to apparatus for flaw detection and velocity measurementby ultrasonic echo methods
IPC: G01N29/28
Filed: 1952-09-26
Abstract: 774,675. Ultrasonic inspection devices. SPROULE, D. O., and GLASS DEVELOPMENTS, Ltd. Dec. 24, 1953 [Sept. 26, 1952], No. 24233/52. Class 118 (2). [Also in Group XXXIX] In an ultrasonic pulse-echo flaw-detecting or testing system comprising separate transmitting and receiving crystal transducers 2 and 4, the transmitting transducer 2 is coupled by a metallic member 3 to the receiving transducer 4 which is coupled to the workpiece 5 so that the transducer 4 receives both the transmitted and echo pulses which may be displayed on a cathode-ray oscilloscope. A metallic damping block 1 is mounted on top of transducer 2, absorbing material being provided at the top of the block or distributed throughout it. The elements 1 . . . 5 are preferably matched to each other such that p1v1=p2v2 ... =p3v3 where p is the density of the element and v is the wave velocity in the element. The transmitting transducer 2 is energized by applying to the block 1 a D.C. voltage step or squarewave voltage to produce a corresponding non- oscillatory pressure wave pulse, Figs. 2 and 3; when the Fig. 3 waveform is employed the signal/noise ratio may be improved by employing a resonant receiving transducer or amplifier. The receiving transducer 4 is preferably of " sandwich " construction with earthed outer electrodes and a live inner electrode, the waveform of the voltage output from the transducer 4 for an applied pressure wave of the type shown in Fig. 2 being as shown in Figs. 4 and 5, depending on whether the thickness x4 of the transducer 4 is such that t4=x4/v4 is less than or equal to the duration t2 of the pressure wave pulse. The Fig. 5 waveform can be converted to that shown in Fig. 8 by differentiating the output from transducer 4. If the output from transducer 4 is as shown in Figs. 4 or 8, then a flaw near the surface of the workpiece can be located if it is such that the echo pulse E, Fig. 6, is reversed in polarity relative to the transmitted pulse P since the transmitted and echo pulses will overlap to give a composite output pulse, Fig. 7, having an identifiable portion corresponding to the leading edge of the echo pulse; the effect of the direct pulse P can be diminished by suitable gating or attenuating circuits. Near flaws may also be detected by introducing a long column of liquid couplant between the transducer 4 and workpiece 5. Reference has been directed by the Comptroller to Specification 715,143.
Patent GB-1069631-A (GB)
Title: Improvements in or relating to box inserts in packaging
Inventor: PLEASANTS SIDNEY JOHN
IPC: B65D5/50
Filed: 1963-06-18
Abstract: 1,069,631. Packages. CARIBONUM Ltd. Feb. 28, 1964 [June 18, 1963], No. 24256/63. Headings B8C and B8P. A box insert comprises a backing sheet 1 and a plurality of retainer flaps 10, 11, 14, 15 secured to one face of the backing sheet, which are folded inwards to embrace a stack of paper and prevent it moving relative to the sheet, when the stack is smaller than the box in which it is to be placed. In the form shown a backing sheet 1 with tongues 3, 4 has two strips 7, 8 of paper cellulose-based material or synthetic sheet material glued to the centre of it, their free ends forming flaps. Flaps 14, 15 are folded over a stack of paper 17 standing on the centre of strip 8 and the tongues 3, 4 folded to overlie the stack. The flaps are then folded back under the backing sheet and adhered to it. The other pair of flaps 10, 11 are infolded and secured by adhesive on the top of the stack. If tongues 3, 4 are omitted flaps 14, 15 are similarly secured. The flaps may be made from four separate strips of material or alternatively one sheet appropriately cut and the strip 7 may be of less width than the length of the backing sheet. The insert is particularly suitable for packaging carbon paper and gramophone records, extra packing being included if the contents have a depth less than that of the box.
Patent GB-628689-A (GB)
Title: Improvements in bench frames for supporting and rotating long cylindrical vessels during welding
IPC: B23K37/053
Filed: 1947-09-03
Abstract: 628,689. Uniting by fusion work-holders. YATES, H. Sept. 3, 1947, No. 24303. [Classes 83 (iii) and 83 (iv)] A work-holder for welding long cylinders comprises free and driven rollers mounted on a series of ball-jointed frames jacked to a common horizontal plane. The central motor frame a supported and levelled by jacks b at each corner is coupled by ball and socket joints to a series of frames e, each supported and levelled by either four jacks b or by two jacks bolted at the ends remote from frame a and interchangeable from end to end. Pads z are provided for levelling purposes. The ball heads c, Fig. 2, welded to the left-hand ends of the frames are detachably held between spherically seated pads at the right-hand ends of adjoining frames, the lower pads d<SP>1</SP> being welded thereto and the upper pads d<SP>2</SP> sliding in vertical guides and being adjustable by screws and hand wheels. The work rests on laterally adjustable idle rollers k bolted to the members m through alternative holes m<SP>1</SP> and on friction rollers mounted on shafts g, i interconnected by floating shafts h<SP>1</SP> and flexible couplings h. The shaft g is driven on the frame a by the electric motor q through an infinitely variable gear p, chain reduction gear n which combination in an example for a motor speed of 1500 r.p.m. will rotate the work at speeds from 1/ 12  r.p.m. for continuous welding to 2¢ r.p.m. when intermittently rotated for tack welding. The motor and gear are controlled through a controller u and motor w by a box r transferable from frame to frame and connected by a cable s on a winding drum t. A manual control spindle x is provided on the frame a only and the shafting may also be turned manually by a shaft y operating the worm gear n.
Patent GB-136795-A (GB)
Title: Improvements in or applicable to Stop-motions of Looms for Weaving.
Inventor: ASHWORTH JOHN
IPC: D03D51/00
Filed: 1919-10-06
Abstract: 136,795. Ashworth, J., Bamford, R., and Ashworth, R. Oct. 6, 1819. Stop-motions, shuttle. - Consists in improvements in the spring-loading of stop-rods in fastreed looms, the spring being mounted between a bracket on the lay and the head of a spindle, which is surrounded by the spring, the spindle being so guided by the bracket that it directs the spring pressure as close as possible to the fulcrum of the stop-rod tongue. Each stop-rod tongue d is acted on by one or more springs g arranged about a headed spindle h disposed as shown, and guided in the bored head i<2> of a simple bracket i, which is slotted and bolted to the lay, the spring being normally in slight compression. When the tongue d moves up due to the action of the swell on the stop-rod finger c, it compresess the spring g, so that should the shuttle not go home, the tongue d is depressed to encounter the frog e.
Patent GB-1331364-A (GB)
Title: Arched structures constructed from prestressed structural units
IPC: E04B1/344
Filed: 1971-04-19
Abstract: 1331364 Arch- or dome-like supporting structures O SIRCOVICH 19 April 1971 [17 March 1970] 24390/71 Heading E1W A supporting structure in the form of an arch or dome is made up using a number of prestressed elements, each including at least two tension members and two compression members. Essentially two dimensional, archforming elements are shown in Figs. 1 and 7, that in Fig. 1 having compression members 2, 4, 6 and tension members 8 and 10, and that in Fig. 7 having compression members 150, 152, 154 and 156, tension elements 160 and 162, and a tension spring 170. The members are put into their initial tensioned or compressed state by inwardly acting forces Q causing members 2, 4, e.g., to move towards each other about pivot point B. The stresses are maintained by tie members, e.g. 172, which are removed after the pivot points of adjacent elements are tied together, and the points A pivotally connected together, as in Fig. 3. A dome-forming three-dimensional element 100 is shown in Fig. 4. This element has a lower pyramidal structure with compression members 102, 104 and 108, and "tension members" 116, 118 and 120, and an upper structure comprising a further compression member 106 pivotally mounted at point B, and further tension members 110, 112 and 114. The lower "tension members" are equivalent to the tie members 172, i.e. they are released after the pivot points B of adjacent elements have been tied together and points A, C and E pivotally connected to adjacent elements, Fig. 5 (not shown). The element is initially tensioned in a similar way to the two-dimensional element.
Patent GB-251931-A (GB)
Title: Improvements in and relating to paper insulation for electric cables and the like
IPC: H01B7/02
Filed: 1925-09-30
Abstract: 251,931. Felten & Guilleaume Carlswerk Akt.-Ges. May 8, 1925, [Convention date]. Insulating coverings for cables and conductors; insulating-materials.-In the manufacture of insulating material for use with high tension junction boxes &c. of the kind consisting of layers of paper impregnated with substances of different dielectric constant so as to grade the insulation in accordance with the strength of the electric field, the paper used is subjected to strong pressure. As impregnating materials, use may be made of solutions of organic substances such as artificial resins or phenol resins and the dielectric constant graded by grading the strength of the solution. The degree of pressure applied to the paper layers may also be graded.
Patent GB-1382125-A (GB)
Title: Heat transferring device
IPC: F28D15/04
Filed: 1972-05-24
Abstract: 1382125 Heat pipes; ovens PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd 24 May 1972 [25 Feb 1972] 24419/72 Headings F4U and F4B A heat pipe, particularly constructed as an oven, has the space containing the working liquid also containing a heating means which is covered with the capillary structure of the heat pipe. When constructed as an oven, the space may be formed between spaced annular tubes 9, 10, either coaxially or eccentrically mounted and the heating means may comprise an electric cable 12 wound around the inner tube on at least a part of its length. The capillary structure 13 is connected to the side wall of the space by at least one capillary bridge 14 or a rod covered with capillary structure is positioned between the capillary structure and side wall.
Patent GB-210396-A (GB)
Title: Improvements in trawling gear
IPC: A01K73/045
Filed: 1923-10-03
Abstract: 210,396. Vigneron, Dahl, et Cie, (Assignees of Danielou, R. L. M., and Verhoeven, J. J.). Jan. 24, 1923, [Convention date]. Addition to 209,032. Trawling-gear.-In a trawling-gear as claimed in the parent Specification the board 2 is connected to the ground cable 3 by an eye. 21 through which the cable slides freely when the gear is being hauled in, whilst during trawling a stop 20 on the ground cable abuts against the eye 21. Alternatively, a loop is formed on the pennant 14, Fig. 3, and a shackle 24 connected to the board' is passed over one member of the loop and is detached for hauling in.
Patent GB-544843-A (GB)
Title: Improvements in or relating to means for hermetically sealing a watch having a movement of a non-circular shape
IPC: G04B37/08
Filed: 1939-08-25
Abstract: 544,843. Watch cases. TAUBERT FRERES SOC. ANON. Aug. 25, 1939. No. 24549. Convention date, Aug. 25, 1938. [Class 139] An hermetically sealed non- circular watch movement 1 is mounted in a frame 2 held by a casing of two parts 3, 4 which are joined by slides 17 (not. shown), 15, 16, 17<SP>1</SP> engaging in grooves 18, 19, 10, 21. A sealed crown 5 and packings 8, 10 hermetically seal the watch. Two yokes 11, 12 have their extremities 13, 14 engaging in depressions in part 4 so that they are rendered immovable when the parts 3, 4 are connected.
Patent GB-616156-A (GB)
Title: Improvements in and relating to transmission, recording and reproduction of sound
IPC: G11B7/00
Filed: 1944-12-08
Abstract: 616,156. Sound and like recording and reproduction. BRITISH THOMSON-HOUSTON CO., Ltd., and GABOR, D. Dec. 8, 1944, No. 24642. [Class 40 (ii)] [Also in Groups XXXIX and XL (a)] Recorded vibrations are scanned by a frequency changing device having a scanning region of which the transmission characteristic varies from zero through a maximum to zero in accordance with a probability function of the distance from the middle line of the region. Similar devices are used for compression and expansion respectively at the end of a signal transmission line. In the device of Fig. 1, an optical record 1 is moved past the scanning window 2 having the requisite transmission characteristic. Moving beams of light from lamp 7 pass through slots 6 in a revolving mask 5, the slots being arranged so that light from one only of the slots passes through window 2 onto the cathode of photo-cell 8. In Fig. 2, the record 1 moves around a hollow drum 10, light being projected from a lamp 7 through fixed slotted mask 11, objective 12 and reflecting prism 13 onto revolving mirror wheel 14 and thence through window 2 onto the photocell 8. In Fig. 6, a fugitive record is made by exciting a layer of phosphorescent material on the continuous band 30 which moves round the fixed drum carrying window 22. The phosphorescent material is excited by radiation from the ultra-violet source 31 the intensity of which is controlled in accordance with the vibrations to be recorded and light emitted from the record passes through window 22 and is received via slit 26 and a reflecting system by a photo-cell 32. In this example scanning of the record is effected by objective lenses 25 mounted on a drum coaxial with and revolving within the fixed drum. Fig. 3 shows an arrangement in which a record is made at 18 on an endless steel tape 15 and is obliterated at 16 after being translated. At the translation point tape 15 is guided by pulleys 22 and wheel 20 is as to approach and leave gradually the wheel 19 to give the required transmission characteristics in scanning. Wheel 19 consists of a star-shaped core of iron with a non- magnetic filling, to afford a smooth circumference on the wheel. Signal currents may be derived from or fed to, as the case may be, a coil wound on the hub 21 of the wheel 19. Fig. 4 shows a modified arrangement in which the magnetic tape 15 is in continuous contact with the scanning wheel 20 at the translation point, the transmission characteristic being varied by variation of an air gap between a stationary pole-piece 34 mounted eccentrically of the wheel 20 and the radially extending magnetic wedges 19 by which flux is conveyed to the strip 15. Electric records may also be employed. Fugitive records may also be constituted as travelling waves in glass troughs.
Patent GB-1010376-A (GB)
Title: Improvements relating to hose reels
Inventor: SMITH EDWARD WARE COWLING
IPC: B65H75/44
Filed: 1963-06-21
Abstract: 1,010,376. Hose reels. CHARLES WINN & CO. Ltd. June 30, 1964 [June 21, 1963], No. 24707/63. Heading B8M. [Also in Division F2] A hose reel has a valve 21 opened by axial movement of rod 26 on rotation of the reel to unwind the hose, the rod being in screwthreaded engagement with a fixed bush 29 and being coupled through a friction clutch to the reel hub. The clutch comprises a disc 30 which is lined with friction material, which is secured to rod 26, and which is clamped between valve housing 28 and spring pressed plate 31. Handle 37 is used to actuate the rod on failure of the clutch. The valve is closed on rewinding of the hose by spring 25 and/or by liquid pressure.
Patent GB-1131356-A (GB)
Title: Shifting device for longwall conveyors
IPC: E21F13/08
Filed: 1966-06-06
Abstract: 1,131,356. Advancing conveyers. GEWERKSCHAFT EISENHUTTE WESTFALIA. 6 June, 1966 [10 June, 1965], No. 25011/66. Heading B8A. [Also in Division F1] A conveyer-advancing hydraulic cylinder and piston device 2, Fig. 1, connected at one end to an hydraulic walking mine roof support structure 14 and at the other end to the conveyer 17 is controlled by a slide valve 1, Fig. 2, actuated by a spring-biased servo-piston 4 in open communication with the supply line 6 leading to the working chamber 5 of the props whereby during normal working the piston 4 is displaced against a spring 3 and sets the valve 1 to a position 9 in which pressure and return lines P, R, are connected to prop and conveyer ends respectively of cylinder 2 which is thus urged to its extended position, whilst when pressure in line 6 is relieved to release the props from the roof, the spring 3 sets valve 1 to a position 10 in which the pressure and return lines P, R are connected to the conveyer and prop ends respectively of the cylinder 2 which latter is free to move towards the conveyer during the advance of the props. The valve 1 may be manually set to a third position 8 in which the pressure line P is blocked and both ends of the cylinder are connected to the return line R. In a modification wherein the rod of the cylinder 2 merely abuts the conveyer 17 the valve 1 assumes position 8, Fig. 4, when pressure in supply line 6 is relieved and position 10 is obtained manually when it is desired to retract the cylinder from the conveyer. In a further modification two series-connected control valves 11, 11<SP>1</SP>, Fig. 6, are so inserted in the supply lines 6, 6<SP>1</SP> of adjacent frames of two support structures that the automatic charging of cylinder 2 is possible only when pressure exists in both lines 6, 6<SP>1</SP>.