baber/WOPTO huggingface dataset:
Patent GB-1068182-A (GB)
Title: Photographic materials containing organic monohydrazone compounds
Inventor: SCHRANZ KARL-WILHELM
IPC: G03C7/32
Filed: 1964-04-10
Abstract: The compounds below are prepared by reacting a carbonyl compound with an appropriate substituted hydrazine. <FORM:1068182/C2/1> <FORM:1068182/C2/2> <FORM:1068182/C2/3> <FORM:1068182/C2/4> <FORM:1068182/C2/5> <FORM:1068182/C2/6> <FORM:1068182/C2/7> <FORM:1068182/C2/8> <FORM:1068182/C2/9> <FORM:1068182/C2/100> <FORM:1068182/C2/111> <FORM:1068182/C2/122> <FORM:1068182/C2/133> <FORM:1068182/C2/144> <FORM:1068182/C2/155> <FORM:1068182/C2/166> <FORM:1068182/C2/177> <FORM:1068182/C2/188> <FORM:1068182/C2/199> <FORM:1068182/C2/200> <FORM:1068182/C2/211> <FORM:1068182/C2/222> <FORM:1068182/C2/233> <FORM:1068182/C2/244> <FORM:1068182/C2/255> <FORM:1068182/C2/266> <FORM:1068182/C2/277> <FORM:1068182/C2/288> <FORM:1068182/C2/299> <FORM:1068182/C2/300> <FORM:1068182/C2/311> <FORM:1068182/C2/322> <FORM:1068182/C2/333> <FORM:1068182/C2/344> <FORM:1068182/C2/355> <FORM:1068182/C2/366> <FORM:1068182/C2/377> <FORM:1068182/C2/388> <FORM:1068182/C2/399> <FORM:1068182/C2/400> <FORM:1068182/C2/411> <FORM:1068182/C2/422> <FORM:1068182/C2/433> <FORM:1068182/C2/444> <FORM:1068182/C2/455> <FORM:1068182/C2/466> <FORM:1068182/C2/477> <FORM:1068182/C2/488> <FORM:1068182/C2/499> <FORM:1068182/C2/500> <FORM:1068182/C2/511> <FORM:1068182/C2/522> <FORM:1068182/C2/533> <FORM:1068182/C2/544>ALSO:The compound of formula <FORM:1068182/C3/1> is prepared from the appropriate carbonyl compound and hydrazine derivative.
Patent GB-179448-A (GB)
Title: Improvements in and relating to domestic washing appliances
IPC: D06F15/00
Filed: 1921-05-31
Abstract: 179,448. Savage, R. May 31, 1921. Washing-plungers consist of a hollow cone shaped body a divided into two chambers by a partition b, perforated towards its outward edges and to which is attached a soap-box f. A central tube m carries a handle l; outlet holes d are provided in the body a with hoods e covering them to prevent splashing. The inner surface is provided with projection k and ridges j to provide a rubbing surface.
Patent GB-238989-A (GB)
Title: Improvements in or relating to bells
IPC: G10K1/072
Filed: 1924-06-23
Abstract: 238,989. Cranidge, J. M. June 23, 1924. Addition to 208, 718. Bell-operating mechanism, hand and foot; bell strikers. - Bell-mechanism, similar to that described in the parent Specification but adapted for hand or foot operation, comprises a pivoted striker-arm 9 carrying abutment lugs 12, 13 and normally resting in its retracted position by reason of a spring 14 or its own weight, the spring clapper 11 engaging the bell 6 by reason of its momentum when the lug 13 engages the case plate 8. For hand operation, the arm 9 may be provided with a knob 15 or with an upwardlyextending arm fitted with a knob or with an attachment for a cord &c. For foot operation, a guided pedal may act on the knob 15 or directly on the arm 9 as shown in Fig. 5. The bell 6 may occupy either position shown in Fig. 5, or, in a further modification, the hammer may be disposed inside the bell. Specification 11446/90 is referred to.
Patent GB-598647-A (GB)
Title: Improvements in straight-bar knitting machines
IPC: D04B11/32
Filed: 1940-10-11
Abstract: 598,647. Knitting-machines. MILLER, M. C. Oct. 11, 1940, No. 15183. Convention date, Nov. 12, 1938. [Class 74 (ii)] The fabric take-up device of a straight-bar machine is arranged to engage a welt wire positioned within a welt, and after the completed fabric has been pressed off the needles, to discharge the fabric from the machine. The take-up device comprises a pair of straps 270 having welt wire engaging hooks 292 mounted thereon, and the straps are led round an idler roller 272 in front of the needles and are driven by rollers 282 at a greater distance from the needles than the length of the fabric to be knitted. A hopper 307 is arranged below the downward stretch of the straps so that when the fabric is pressed off, the fabric and welt wire falls into it. Tension is applied to the straps by a counterweight supported by a cord passing over pulleys and secured at its end to the shaft 284 upon which the driving rollers 282 are secured. The welt wire 404 is supported in two spaced brackets 398 mounted upon the picot bar 86. In the raised inoperative position shown in Fig. 9, slots 400 in the brackets 398 have their open ends positioned upwardly to permit the deposit of welt wires therein ; in the inverted position, the welt wire is positioned in the path of the take-up hooks 292, being held in the slots by spring-pressed detents 402. Means are provided for rotating the driving rollers 282 in a reverse direction. for rapidly resetting the takeup device to engage the next welt wire. A magazine for holding a supply of welt wires may be arranged above the inoperative position of the brackets 398, and means controlled by the pattern chain may be provided for transferring the lowest welt wire in the magazine to the slots 400 in the brackets. A switch controlled by stops upon the pattern chain 216 may be provided for lowering the speed. of the machine during the press-off and subsequent setting-up operations. Specifications 598,704 and 598,705 are referred to.
Patent GB-529140-A (GB)
Title: Improvements in dyeing or printing with anthraquinone derivatives
IPC: D06P1/28
Filed: 1939-05-23
Abstract: 529,140. Dyeing textiles. DURAND & HUGUENIN ART.-GES. May 23, 1939, No. 15293. Convention date, May 23, 1938. [Class 15 (ii)] In dyeing or printing with ester salts of leuco-N-dihydro-1:2:2<SP>1</SP>:1<SP>1</SP>-dianthraquinoneazine dyestuffs (cf Specifications 272,924, [Class 2(iii)], 383,741, 386,245, 394,887 and 416,939) with development by steaming in presence of an oxidizing agent and an ammonium salt dissociated by steam, over-oxidation is avoided by the use of ammonium nitrate as the ammonum salt. In an example, cotton is printed with an aqueous paste containing the sodium salt of the tetrasulphuric acid ester of tetrahydro-1:2:2<SP>1</SP>: 11 - dianthraquinoneazine or its 3:3<SP>1</SP>-dichloro derivative, urea, starch tragacanth thickening, ammonium nitrate, sodium chlorate and ammonia and the printed goods are steamed, washed, soaped and rinsed. Specifications 220,964, 281,336, [both in Class 15 (ii)], and 344,964 also are referred to. The Specification as open to inspection under Sect. 91 comprises also a modification of the above example in which the urea is replaced by the sodium salt of dimethylsulphanilic acid. This subject-matter does not appear in the Specification as accepted.
Patent GB-529143-A (GB)
Title: Improvements in work stops for automatic lathes
IPC: B23B13/12
Filed: 1939-05-23
Abstract: 529,143. Lathes. FAIRWEATHER, H. G. C. (National Acme Co.). May 23, 1939, No. 15311. [Class 83 (iii)] In an automatic bar stock lathe, particularly of multiple spindle work turret type the workstop moves' along a guide face which is inclined both to a horizontal plane and to transverse and longitudinal vertical planes so that when the stop is withdrawn it is moved away from the end of the bar in a longitudinal direction and also below the bar and clear thereof when the work indexes. In one form a central tool carrier 4 moves on a guide tube 5 and is steadied by a guide bracket 6 having an inclined front face 7. A bar 8 carrying the stops 9 has rack teeth 10 operated by a mutilated gear 11 which is rocked by a cam 15 on the cam shaft 17 the cam being arranged to advance the stop to operative position' just before the stock feed occurs and withdraw it as soon as the bar is correctly positioned.
Patent GB-257366-A (GB)
Title: Improvements in draw-plates or dies for drawing wire
IPC: B21C3/04
Filed: 1925-06-13
Abstract: 257,366. Witts, F. J. June 13, 1925. Drawing-dics.-Compound dies for drawing round wire comprise two parts P, S which may be secured together in different angular relationship by screws &c. T. Each part is provided with a die E which may have a diamond drawing surface D. The drawing apertures are of the same diameter and may be spaced apart by washers interposed between the parts P, S. Radial grooves for lubrication are formed in the co-acting faces of the parts P, S.
Patent GB-1210476-A (GB)
Title: Recording volume flowmeter
IPC: G01F1/66
Filed: 1968-03-29
Abstract: 1,210,476. Measuring blood flow. COMPAGNIE GENERALE D'ELECTRICITE. 29 March, 1968 [7 April, 1967], No. 15375/68. Heading A5K. [Also in Division H4] In ' an ultrasonic pulse-echo system for recording the magnitude and direction of variations in the volume flow rate of fluid in a conduit, a single transducer is used to measure the time T between an echo from one surface of the conduit and an echo from an opposed surface of the conduit and to measure the Doppler frequency deviation # undergone by an echo from fluid constituents, and a signal proportional to T<SP>2</SP># is derived as a measure of the instantaneous volume flow rate. For measuring blood flow a lead titanate-zirconate transducer 10, in a methacrylate resin holder which surrounds the blood vessel or is applied to the epidermis with an oil or jelly couplant, provides an ultrasonic propagation path which traverses the vessel obliquely. Timing unit 23 operates electronic switch 22 to connect transducer 10 to puse generator 21 and receiver 24 alternately. Received signals are frequency-changed in mixer 26 and intermediate-frequency filter 27 and applied to peak detector 34. Differentiating circuit 35 detects the termination of the echo from the vessel near wall and the leading edge of the echo from the opposite wall and drives bistable circuit 37 (via a Schmitt pulse-shaping circuit 36) so that circuit 37 is in its "set" state for the period T in which echoes are received from red corpuscles in the blood, i.e. for a period representing the vessel diameter. Unit 38 provides a voltage V 1  proportional to T and unit 39 derives from this a voltage V 2  proportional to T<SP>2</SP>. Gate 29 is controlled by bistable 37 to pass the red corpuscle echoes via a filter 30 (which rejects low frequency Doppler signals due to pulsations of the vessel) and limiter 31 (which eliminates amplitude variations) to a frequency discriminator 32 providing an output V 3  which represents in magnitude and sign the flow velocity. Multiplier 40 gives the product of V 2  and V 3 , which represents volume flow rate and is recorded at 42. Separate indications of the instantaneous values of flow velocity and volume flow rate are given at 33 and 41 at selected times when sampling gates 43, 44 are opened by signals from timing unit 23 fed over adjustable delay units 45, 46 or over a single delay unit. The time T (and hence vessel width) can be determined separately on oscilloscope 50 provided with adjustable calibration markers J 1 , J 2 , the signal received in some successive measurements to enhance the signal-to-noise ratio by integrating the received signal using a tapped delay-line. In a modification the vessel width and the flow velocity may be measured alternately, different optimum transmitted pulse durations being used for the two measurements. Analogue and/or digital devices may be used to derive a value proportional to T<SP>2</SP>#.
Patent GB-1496566-A (GB)
Title: Optical position indicator for an enclosed electrical device having a movable contact
IPC: H01H9/16
Filed: 1975-04-15
Abstract: 1496566 Optical indicator for relay ALLENBRADLEY CO 15 April 1975 [22 April 1974] 15416/75 Heading H1N An electrical device comprises a housing 11, 12, stationary and movable contacts (not shown) within the housing, a member 14 carrying a reflecting surface 35 moving with the movable contact, and a light guide 30, light entering the guide 30 being reflected back in one position of the movable contact to give a visible indication of its position. In the embodiment shown a protective relay 10 comprises a stud 28 which is heated by a coil (not shown) under fault conditions to melt a film of eutectic solder attaching it to a ratchet 27 to free the ratchet and an engaged metal pawl 25 and allow an insulating body 20 mounted on a shaft 26 attached to the pawl to be rotated by a spring (not shown) and move a member 14 carrying the reflecting surface on an ear 36, a transparent glass or acrylic member 30 serving as the light guide. In alternative embodiments the member 30 may be replaced by a tube with an internal reflecting surface (Fig. 8, not shown), the upper surface of member 30 can be angled to deflect light incident laterally, or the lower surface is sloped (Fig. 6, not shown) or the light guide bent (Fig. 9, not shown) to deflect light on to a vertical reflecting surface. In an application to a limit switch (Figs. 10 and 11, not shown) the light-guiding member (84) is relatively short and narrow and is covered by a transparent disc (82) and a metal or plastics sheet with a slot (80) aligned with the light guide (84). A coloured reflecting area (77) is used.
Patent GB-640130-A (GB)
Title: Improvements relating to the mounting of live rings on rotary or rocking drums
IPC: F27B7/22
Filed: 1948-06-08
Abstract: 640,130. Rotary and rocking furnaces. SMIDTH & CO. AKTIESELSKAB, F. L. June 8, 1948, No. 15475. Convention date, June 13, 1947. [Class 51(ii)] . The "live" ring 4, which engages the supporting rollers of a rotary or rocking furnace, is mounted on the furnace drum 1 by means of a number of closely-spaced supporting rings 6. welded to the drum, and a series of intermediate plates 7 extending parallel to the drum axis. The plates 7 are welded to the two central supporting rings, and alternate plates carry blocks 8 or 9 to limit the axial displacement of the ring 4. Distance pieces may be inserted between the rings 6.
Patent GB-223272-A (GB)
Title: Improvements in gear grinding machines
IPC: B23F23/08
Filed: 1923-06-14
Abstract: 223,272. Morris Engines (Coventry), Ltd., and Taylor, H. E. June 14, 1923. Gear-cutting. - The teeth of gear-wheels are ground by the fiat surface of a grinding-wheel c, the gear-wheel being mounted on a spindle u journaled in a slide q, which is reciprocated in a direction perpendicular to the operative surface of the wheel c by a crank s and a connecting rod t. The wheel is rolled, during reciprocation, to give the required shape to the teeth by a cam e on the spindle, the cam engaging fixed abutments f. The wheel is indexed during the last part of its upward movement by means of an indexing-plate d secured to the spindle u. The cam e is loosely mounted on the spindle and carries a slida.ble pawl-plate g carrying a pawl h adapted to be pressed into a notch of the indexing-plate by a spring. After a tooth has passed clear of the grinding-wheel, further rotation of the spindle u brings a hinged tooth l on the pawlplate into contact with a stop n, thus sliding the plate to move the pawl clear of the notch, and at the same time removing a segmental extension i carried by the plate from locking engagement with a spring-pressed locking pawl and allowing this to engage a notch of the indexing-plate, whereby further rotation of this is prevented. Further rotation of the cam and the plate brings the pawl opposite another notch which it enters, the extension i also removing the pawl j from the notch; reversal of the movement of the spindle then takes place, a new tooth being rolled over the grinding-wheel, the hinged tooth l rocking clear of the stop n as the spindle moves downwards. The grinding-wheel or the work may be given a lateral reciprocation to equalize wear of the grinding-surface. Specifications 107,608, [Class 60, Grinding or abrading &c.], 159,503, and 195,381 are referred to.
Patent GB-544774-A (GB)
Title: Improvements in or relating to method of preparing guanidine salts
Filed: 1940-10-21
Abstract: 544,774. Preparation of guanidine salts. AMERICAN CYANAMID CO. Oct. 21, 1940, No. 15519. Convention date, Oct. 31, 1939. [Class 2 (iii)] Guanidine salts are prepared by heating at reaction temperature, e.g. 100‹ to 200‹C., cyanamide or dicyanamide in a solvent comprising liquid ammonia containing an anion, e.g. as an ammonium salt, or as an acid anhydride with a little aqueous diluent, capable of combining to form a stable guanidine salt. Anions specified include radicals of hydrochloric, sulphuric, nitric, maleic, acetic, carbonic, carbamic, benzoic, anthranilic, and higher fatty acids, and diluents such as methyl, ethyl, or benzyl alcohols, ethylene glycol, dioxane, toluol &c. The reaction mixture is agitated continuously during the heating period. In an example, dicyandiamide and . ammonium carbonate were enclosed in a stainless steel-lined autoclave and heated to 120‹C., maintained . thereat for 4 hours and quickly cooled.
Patent GB-781698-A (GB)
Title: Improvements in or relating to stores dropping platforms
IPC: B64D1/14
Filed: 1956-05-18
Abstract: 781,698. Load-supporting platforms. BLACKBURN & GENERAL AIRCRAFT, Ltd., CLARK, F. M., and STAMPER, J. T. May 18, 1956, No. 15609/56. Class 94(1). A platform for supporting a load to be dropped by parachute from an aircraft, comprises channel-section frame members 5 to 8, Fig. 2, e.g. of light metal alloy, having lugs 9, 10 at their ends releasably interconnected by pins or bolts 11, the flanges of each channel section 1, Fig. 1, supporting a crushable beam comprising surface sheets 2, 3, e.g. of light metal alloy, plywood or thick resin-impregnated paper, having between them a low density filling 4, e.g. of resin-bonded paper honeycomb material, foamed plastic or resin-bonded fibres. The frame members may be provided with guide rails and means facilitating the attachment of load-lashing lines or a securing net. When the load hits the ground, the beam fails in compression thus absorbing the shock of impact and preventing damage to the load and frame members, the latter being salvaged for re-use,
Patent GB-935396-A (GB)
Title: Improvements in and relating to the production of poly-gamma-methyl glutamate and poly-gamma-ethyl glutamate films
Inventor: BALLARD DENIS GEORGE HAROLD
IPC: D01F6/68
Filed: 1961-05-01
Abstract: Films of an optically-active form of polygamma methyl glutamate and poly-gamma ethyl glutamate are made by polymerizing an optically active gamma-methyl or gammaethyl glutamate N-carboxy anhydride in an organic liquid medium which is a solvent for the polypeptide formed, the polypeptide being composed of at least 90% by weight of units of the optically active glutamate ester, extruding a solution of the polypeptide while it is still in the solvated state through a slit into a setting medium so that the polypeptide is in the alphaconfiguration on extrusion, and stretching the resultant film while it is still in the alpha-configuration thereby converting the polypeptide substantially into the beta-configuration and substantially orienting the film in the direction of stretching, which is preferably longitudinal, but may also be transverse.  Films may be p  made by wet- or dry-spinning, or by casting, and the polymer solution is preferably made by polymerizing the glutamate in the solvent to be used for the film-forming step.  Preferred solvents are methylene chloride, and mixtures thereof with dioxane or ethyl acetate, but any of the solvents described in the parent Specification may be used.  Thus the polypeptide may be extruded into a coagulating bath which is a non-solvent for the polymer but a solvent for the polymer solvent, e.g. acetone containing 5% water, or into a gas which is preferably heated, or cast on to a moving surface, using a doctor blade to adjust the thickness of the film, or cast on a liquid surface, the liquid preferably being a coagulant. Films made by wet spinning may be stretched in the wet state, or first dried and then stretched.  Films made by dry spinning or casting may be stretched in air or over rollers while still containing some solvent, or after drying has been completed, or may be stretched in steam.  In examples (1) a solution of poly-gamma methyl-2-glutamate in a methylene chloride/dioxane mixture is extruded into a coagulant bath consisting of acetone containing about 5% of water, passed through a water bath to remove acetone and while still wet passed over a series of rollers to give a 90% stretch.  (2) The solution of Example 1 is cast on glass as a film and allowed to dry, then passed through a bath of acetone and stretched over rollers and dried as in the previous example.  The films so made are insoluble in the spinning solvent.  Specification 917,956 also is referred to.
Patent GB-251136-A (GB)
Title: Improvements in a method of and apparatus for purifying liquids
IPC: C02F1/463
Filed: 1925-06-17
Abstract: 251,136. Avery, M. D. June 17, 1925. Liquids, treating; electrodes; electrolytes, circulating and agitating.-In apparatus for sterilizing and purifying liquids, the liquid is introduced tangentially into the container so as to impart rotary motion without the use of spiral guides or mechanical agitators. The apparatus comprises a glass container 5 having a removable cover 7 in which is mounted a head 9 integral with an insulating rod 8 having a passage 10 connected by a pipe 13 to a liquid-inlet cock 15. The electric supply leads are connected by means of a plug 40 to a. conductor 24 connected at the other end to a central perforated plate electrode 28, and a conductor 24<1> connected to perforated plate electrodes 23, 31. The lower end of the passage 10 is connected to bent tubes (not shown) which pass through the edges of the electrodes and are provided between the electrodes with lateral orifices so disposed that the liquid issues in tangential jets. The liquid may alternatively be introduced through a tube 10<a> provided with lateral apertures and connected to a cock 47, or this tube and cock may be used for draining the vessel, or for continuously removing the liquid. After use the apparatus may be cleaned b a spray from a tube 44. The liquid may also be continuously removed by a pipe 48. In a modification, the liquid is introduced through a vertical pipe mounted in the cover 7 near the edge of the container, and a larger number of electrodes is provided.
Patent GB-653031-A (GB)
Title: Improvements in or relating to radio receiving sets tunable to a plurality of wavelength ranges
IPC: H03J5/24
Filed: 1948-06-11
Abstract: 653,031. Radio receiving circuits. PHILIPS ELECTRICAL, Ltd. June 11; 1948, No. 15759. Convention date, June 14, 1947. [Class 40 (v)] In a radio receiver tunable to a plurality of wave ranges by means of resonant circuits comprising a fixed inductance in parallel with a common variable condenser, each parallel tuned circuit is provided with a switch for connecting a fixed or pre-set condenser, which has a much smaller capacity than the maximum capacity of the variable condenser, in series with the inductance of the circuit in such manner that the total minimum capacity of the circuit is reduced and the receiver is adapted for the reception of higher frequencies. As shown, the effect of the stray capacity CO is reduced by means of condenser C1 connected in series with the coil L and a fixed or pre-set condenser C2 may also be switched in series with the tuning condenser C so that the variation with tuning of the signal voltage applied to the input of the valve is considerably reduced. Fig. 1 (not shown) shows the highfrequency and mixing stages of a superheterodyne receiver using the circuit of Fig. 2, in which switching in the additional condensers C1, C2 changes the wave range from 6 to 18 mc/s. to 18 to 23 mc/s.