baber/WOPTO huggingface dataset:
Patent GB-617874-A (GB)
Title: Improvements in or relating to means for extracting energy waves of desired length from a heated body
IPC: H01K1/26
Filed: 1945-07-18
Abstract: 617,874. Electric lamps with internal reflectors. RYGARD, S. O. July 18, 1945, No. 18428. Convention date, July 21, 1944. [Class 39 (ii)] [Also in Group XX] An electric lamp whereby the heat rays are extracted from the emitted radiation and returned to the filament comprises a lamp bulb 33, Fig. 3, having a paraboloidal portion 36 at the focus of which is situated the heated filament 38 so that the rays emitted thereby are reflected into low parallelism by a coating 37 on said portion. These rays fall on two prism groups 42, 44 ; the individual lower and upper prisms respectively of these groups are inter-connected by radially extending glass plates 47, while the upper prism of group 44 is suspended by a rod 48 from a concave mirror 40 and the upper and lower prisms of each group are secured together by adhesive spacing strips. The mirror 40 is suspended by rods 50 secured in a glass body 52 and serves to shield the bulb 33, except for the part 36, from the rays emitted by the filament. Each prism group comprises prisms 12, 14, Fig. 2, the faces 24, 26 of which are slightly separated by strips 56. The angle # of prism 12 is chosen so that incident rays of wavelength less than 700 Á are reflected at 24, while the other and undesired rays, after refraction at 24, pass to the face 26 so that the paralled rays 32 strike a reflecting surface 20 and return along their former paths to the filament.
Patent GB-504326-A (GB)
Title: Improvements in and relating to the sealing of cartons and the like
IPC: B65D5/06
Filed: 1937-12-14
Abstract: 504,326. Closing cartons. WATSON, V. H., and WATSON, N. V. Dec. 14, 1937, No. 18431/38. Divided out of 504,311. [Class 94 (i)] A wax-paper &c. carton 1, which may be of the kind described in Specification 504,311 and is closed by bringing together the top edges and turning the flap 4 over on to the surface 6a, is sealed by heat-pressing the edges and flap between travelling belts, the pressure not being applied however to the extreme top of the fold so that a tube 8 is formed, into which some of the softened wax is extruded by the action of the belts, and effects a complete seal. The cartons are fed by a conveyer so that the folded upper edges are received between endless belts 10, 11, moving at the same rate as the cartons and the inner surfaces of the belts bear against heated tubes 12, 13. The cartons may pass to another pair of conveyers which are cooled to ensure adhesion.
Patent GB-649820-A (GB)
Title: Improvements in or relating to electric frequency modulating systems
Inventor: DUNKLEY ROWLAND ARTHUR GEORGE
IPC: H03C3/30
Filed: 1949-07-13
Abstract: 649,820. Frequency modulation. STANDARD TELEPHONES & CABLES, Ltd. July 13, 1949, No. 18500. Drawings to Specification. [Class 40 (v)] In a frequency modulation transmitter, two oscillators of different frequencies F1, F2, one or both of which are frequency-modulated by the signal voltage, are fed to an overloaded amplifier (e.g. a travelling wave amplifier) and from its output a frequency component of the type nF1-mF2 is selected for transmission, m and n being integers greater than unity. When only the frequency F1 is modulated, the system multiplies the frequency deviation by the factor n. When both frequencies are equally modulated and the modulation is applied to them with opposite polarity, both add to the frequency swing. Moreover, if m is equal to n, certain distortion components, introduced by non-linearity of the modulators, are eliminated.
Patent GB-209188-A (GB)
Title: Improvements in and relating to discharging vat dyestuffs
IPC: D06P5/15
Filed: 1922-07-06
Abstract: In the production of discharge effects, by means of reducing discharges, upon fabrics dyed with vat-dyestuffs, particularly sulphurized carbazol-indophenols, a water soluble salt of a weak carboxylic acid with a polyvalent base, such as zinc or calcium acetate, is used either as an ingredient of the discharge paste or to impregnate the fabric before printing, or for both purposes; the prints are steamed, preferably at temperatures substantially above 100 DEG  C.  In an example, the dyed cloth is impregnated with calcium acetate, printed with a thickened mixture containing glycerol, calcium, zinc and sodium acetates, formaldehyde hydrosulphite, and leucotrope W, and finally steamed at 130 DEG  C. One of the Provisional Specifications describes the use of other soluble salts such as calcium or barium chloride, and also the addition of alcohol to the discharge paste.
Patent GB-146464-A (GB)
Title: Improvements in kinematographic apparatus
IPC: G03B41/08
Filed: 1920-07-05
Abstract: 146,464. Zeiss, C., [Firm of]. May 23, 1919, [Convention date]. Kinematograph apparatus.-In kinematograph apparatus having a continuously-moving film and optical compensating means comprising two rotating rings of rhombic prisms, the rings comprise equal numbers of prisms and have parallel or coincident axes, and the prisms have their entrance and emergent faces perpendicular to the axes, and their radial faces contiguous. As shown in Fig. 2, the rings of prisms a<1>, b<1> have parallel axes one on each side of the axis of projection, and rotate between the film d and objective c. In a modification. Fig. 5, the prisms f<1>, g<1> are cemented to a glass plate h, and the projection beam, after passing through the prisms of one ring, is reflected through the other prisms by a stationary prism k. In a projector a pair of rings as described may be provided. both behind and in front of the film.
Patent GB-1383726-A (GB)
Title: Process for separating unsaponifiable matter from soap solutions
IPC: C07C51/00
Filed: 1973-04-17
Abstract: 1383726 Purifying soap AJINOMOTO CO Inc and JAPAN CARBOXYLIC ACIDS CO Ltd 17 April 1973 [20 April 1972] 18546/73 Heading C5D Unsaponifiable matter is removed from an aqueous solution of one or more alkali metal fatty acid soaps by adding a C 1 -C 3  alkanol to the aqueous soap solution and extracting the aqueous alcoholic soap solution with ethylene dichloride. The purified soap is obtained from the aqueous layer by distilling off the alcohol and water. The alkanol. may be methanol, ethanol or propanol and may comprise 5 to 50% of the aqueous alcoholic soap solution. 0À1 to 5 parts of ethylene dichloride per part of aqueous alcoholic solution are used. The soap is a sodium or potassium soap obtained by oxidizing paraffins and saponifying with aqueous NaOH. Prior to saponification, the crude fatty acids may be refined using a silica-alumina catalyst. The aqueous alkanolic soap solution may already exist.
Patent GB-352691-A (GB)
Title: Improvements in and relating to inductor relays
IPC: B66B1/50
Filed: 1930-06-18
Abstract: 352,691. Lifts. ASSOCIATED ELECTRICAL INDUSTRIES, Ltd., Crown House, Aldwych, London.-(Assignees of Eames, W. F. ; 207, Ross Avenue, Wilkinsburg, Pennsylvania, U.S.A.) June 18, 1930, No. 18622. Convention date, June 18, 1929. [Class 78 (ii).] Inductor relays for use in lift-control systems comprise a magnetic core carrying a fixed energizing coil which is in series with and mounted end-on to a movable coil disposed in a small air gap, the attraction between the coils normally being insufficient to cause movement of the coil until the approach of an inductor carried by the lift bridges a large gap in the magnetic circuit, the resulting increase in the flux causing attraction of the movable coil and operation of the relay contacts. The coils of two such relays such as the slow-down and stop relays may be mounted on the ends of a pivoted lever, the relay cores being arranged side by side. As shown in Figs. 1 and 2, the relay cores 14, 16 carry fixed coils 22, 22<1>, series-connected movable coils 23, 23<1> being placed in annular gaps between the upper ends of the cores and parallel horizontal core members 18, 18<1>. The movable coils are mounted at the ends of a centrally-pivoted bar 24 which also carries insulated spring contacts 26, 261 normally in engagement with the fixed contacts 28, 28<1>. When either of the gaps between the forked ends of the core member, 14, 18 or 16, 18<1> is bridged by the approach of an inductor or magnetic material the decrease in reluctance of the magnetic circuit causes a downward movement of the corresponding moving coil which tilts the lever 24 and causes the circuit at the corresponding contacts 26, 28 or 261, 28<1> to be broken. The lift control circuits are shown in Fig. 4, in which 40, 41 are the associated stop and slow-down relays for upward motion co-operating with fixed inductors 401, 411 and similar relays 42, 43 for downward motion co-operating with inductors 42<1>, 43<1>. The driving motor EM is fed by a motor generator GM in a Ward-Leonard control system, and is-under the control of selfmaintaining multiple contact relays 1, 2 for controlling upward and downward motion. A selfmaintaining accelerating relay 3 is adapted on energization to short-circuit a resistance R in the separately-excited generator field GF. The system is controlled by a control switch C which is moved through one or two steps in one or other direction for slow and full-speed motion in an upward or downward direction. If the operator desires to stop, the controller is restored to its central position when approaching the desired position, and the stopping is effected by the corresponding inductor relays, the slow-down relay being first operated to de-energize the accelerating relay 3 and the stop relay being subsequently operated to deenergize the corresponding control relays 1 or 2.
Patent GB-1026922-A (GB)
Title: Novel monofluoroacetanilide derivatives
IPC: C09B43/128
Filed: 1963-05-10
Abstract: The invention comprises compounds of formula <FORM:1026922/C2/1> wherein X represents up to 5 substituents, at least one of which is in the o- or m-position, selected from F, Cl, Br, I, NO2, OH, CO2H, SO3H, OR, SR, SO3R, SO2NH2, CN, SCN, NH2, NHR, NR2, halogenated R and halogenated phenyl, R being C1- 3 alkyl.  These compounds are prepared by reacting the corresponding chloro-, bromo- or iodo-acetanilides at up to 300 DEG  C. with a fluoride of Li, Na, K, Sb, Cu, Hg, Ag, Co, Tl or Zn.ALSO:Insecticidal and acaricidal compositions comprise compounds of formula <FORM:1026922/A5-A6/1> wherein X represents up to 5 substituents, at least one of which is in the o- or m-position, selected from F, Cl, Br, I, NO2, OH, CO2H, SO3H, OR, SR, SO3R SO2NH2, CN2SCN, NH2, NHR, NR2, halogenated R and halogenated phenyl (R being C1-3 alkyl) and a carrier or solvent therefor.  The usual adjuvants may be utilized to make e.g. dusts, wettable or soluble powders, or emulsifiable concentrates.
Patent GB-586019-A (GB)
Title: Methods of and means for visually reproducing signals
IPC: G01S1/02
Filed: 1944-09-29
Abstract: 586,019. Visually reproducing signals; radiolocation. STANDARD TELEPHONES & CABLES, Ltd. Sept. 29, 1944, No. 18738. Convention date, Nov. 1, 1943. [Classes 40 (iii) and 40 (v)] A signal receiving arrangement comprises a pair of cathode-ray oscillographs which operate alternately in synchronism with incoming pulses and produce images which are relatively displaced so that when the oscillograph screens are viewed, one by each eye of an observer, an apparent stereoscopic effect is produced, rendering signals more distinct than rantlom disturbances. In Fig. 1, facsimile signals, which are each repeated several times, from a transmitter 8 are received at 10 and applied to oscillograph plates 12, 12<1>. Sweep voltages are produced by the generator 16 and applied to the plates 12, 12<1> through a differentiator 22 to a trigger circuit 24 of known design which produces outputs which are applied to grids 26, 26<1> to cause the tubes to operate alternately at a frequency which will correspond to the time displacement between repeated signals. Trace positions are controlled by potentiometers 20, 20<1> to give the required relative displacement. Fig. 4 shows a radiolocation system employing the invention. Transmitter 138 and receiver 110 are energized intermittently so that the receiver receives pulses radiated from the transmitter and reflected from the object to be located, alternate pulses being effective in each tube. The tube screens have graduations 144, 144<1>, Fig. 5, or separate graduated screens may be provided, the graduations being relatively displaced so as to give an apparent stereoscopic effect when viewed as seen at 144<11>. The displacement of the graduations is such that if the object is stationary or circling, the combined pulse indications such as 160<11> appear to be in the same plane as the graduations 144<11>, but if the object is approaching, the interval between successive pulses decreases and the combined indications appear to be in front of the graduations. If the object is receding, the combined indications appear behind the graduations. The speed at which the object is moving towards or away from the station may be noted by observing the adjustment of potentiometer 20 or 20<1> required to cause indications 162<11>, 164<11> to appear in' the same plane as scale markings 144<11>, and the potentiometer may be graduated in speeds. To enable the receiver to operate with different pulse repetition rates, one of the tubes may be mounted for movement laterally of its scale as shown at 145 in Fig. 5. Instead of providing scale marks on the ends of the tubes, marking pulses may be introduced in the signals, but in this case no indication of the speed of approach or recession of the object is obtainable.
Patent GB-298926-A (GB)
Title: Process for the manufacture of finely divided iron oxide
IPC: C01G49/06
Filed: 1927-07-14
Abstract: 298,926. Carpmael, A., (1. G. Farbenindustrie Akt.-Ges.). July 14, 1927. Iron oxide in finely-divided form is obtained by heating trivalent iron hydroxide in the presence of water or an aqueous solution at a temperature of between 110-150‹ C. under pressure. A solution of ferric salt, e.g. ferric chloride, may be heated with a base, e.g. lime, chalk, or sodium carbonate in an autoclave as above, and the product filtered, washed and dried. The oxides range from a yellowish red to a dark violet. Specifications 1516/80 and 17113/94 are referred to.
Patent GB-889441-A (GB)
Title: Improvements in means for supplying a supplementary or auxiliary liquid to the fuel supply of an internal combustion engine
IPC: F02M1/00
Filed: 1957-06-14
Abstract: 889,441. Carburetters. WILKINSON, H. S., and JACKSON, D. June 13, 1958 [June 14, 1957], No. 18772/57. Class 7(3). A device for automatically dispensing or injecting a liquid additive into the fuel supply of an internal combustion engine comprises a suction pipe leading from a source for the additive into the carburetter of the engine at a point before the throttle, the suction pipe being connected to an air bleed pipe having an end adapted to be opened and closed by a valve operatively connected to a pressure sensitive element connected to the carburetter or engine manifold after the throttle so that the degree of opening of the air bleed pipe by the valve varies with changes in pressure in the carburetter or engine manifold after the throttle and the amount of additive dispensed or injected into the fuel supply is increased with the load imposed on the engine. As shown the device comprises an injecor pipe 1 the end 1b of which is submerged in an auxiliary additive (in this case water) in a float chamber 4 which is fed from a tank (not shown) either by gravity or by a suitable pump. Branched into the inlet pipe 1 is an air bleed pipe 5 the outer end of which has an orifice 6 with which a tapered needle 7 cooperates. The needle is operable by a diaphragm one side of the diaphragm being connected by a pipe 10 to the manifold 11. When the throttle is opened (for example at full load) the depression in the manifold is reduced and the spring 8 is able to push the needle 7 into the orifice 6 thus closing it. Consequently the suction at the choke tube 2 will draw water from the float chamber 4. A cable 13 is provided for controlling the spring 8 so that it is possible to control at what manifold depression the injector starts to operate. A non-return valve may be fitted in the inlet pipe 1 between its junction with the pipe 5 and the float chamber. The needle 7 may be constructed so that it acts as a metering device in the inlet pipe 1. Bellows or pistons may be used in place of a diaphragm. The control lever for regulating the sensitivity of the air jet may be operated in conjunction with the conventional choke control or it can be thermostatically controlled. An accelerator pump may be incorporated to obtain instantaneous injection response to the throttle. A small quantity of air may be fed continually into the air bleed pipe. The device can be made to operate in conjunction with a variable choke a constant vacuum carburetter either vertical sloping or horizontal. The device can be used with multi-carburetter installations using a common tapered needle and air jet and an individual float chamber for each carburetter. Alternatively one float chamber can be used in conjunction with a branched inlet pipe. The liquid additive may be methanol, hydrogen peroxide, upper cylinder lubricant, a decarbonising fluid or water or a high octane fuel when that supplied by the carburetter is a low octane fuel.
Patent GB-1140669-A (GB)
Title: Improvements in or relating to vegetable or fruit cutting or slicing machines
IPC: B26D3/22
Filed: 1966-04-29
Abstract: 1,140,669. Cutting vegetables &c. W. ANLIKER. 29 April, 1966 [3 May, 1965; 31 May, 1965], No. 18810/66. Heading A4C. In a machine for slicing vegetables, fruit and the like a cover 3 is detachably mounted on a motor base 1 by means of studs 24 raised or lowered by levers 25 and engaging slotted projections 22 on the cover. A preferably corrugated knife blade 6 is mounted on a disc 5 and sliced material passes through a slot in 5 to be swept to outlet 11 by means of guide disc 10 having a preferably flexible projection 12 thereon. Discs 5 and 10 are detachably mounted for rotation on a common shaft. Cover 3 contains two food inlets, one, 13, fixed and the other, 14, which has an elliptical opening rotatably driven by gearing from the shaft so that it rotates 90 degrees for each revolution of knife 6. In a second embodiment (Fig. 10) the cover 33 may be detachably mounted on the same motor base 1 as above and contains only a single inlet 53. The disc 35 carrying the knife 36 has a projection 52 on its lower face, said projection having an approximately spiral shape leading edge extending outwardly from the shaft so that it displaces cut material along a ribbed non-rotating guide disc 40 towards the outlet (47) in the entrance to which are fixed parallel knives (45) which cut the slices into sticks. A further set of parallel knives (64) (Fig. 15, not shown) may be fixed across the food inlet of the machine so that the food is sliced vertically before meeting the rotating knife and the final product is cubes.
Patent GB-222992-A (GB)
Title: Improvements relating to printing machines
IPC: B41F31/34
Filed: 1923-07-23
Abstract: 222,992. Evans, A. B. July 23, 1923. Damping-apparatus for lithographic and like machines; inking - apparatus. - In printing- machines of the kind having inking or damping rollers mounted in forks or supports in pivoted sockets, and eccentric studs or elements for adjusting the sockets about their pivots, the eccentric studs are provided with lock nuts &c. for clamping the sockets in adjusted position. The brackets on which the sockets are carried may be pivotally mounted upon the machine frame. The rollers a, contacting with the forme d and with a rider roller h in fixed bearings, are mounted in forks b carried in sockets c adjustably pivoted at c<1> to brackets e adjustably pivoted to the frame f of the machine. Screws b<1> and lock-nuts b<2> permit the contact of the rollers a with the forme d to be adjusted. The sockets c are adjustable about the pivots c<1> to vary the contact of the rollers a with the rider roller h by means of rotatable studs g screwed into holes in the brackets e and having eccentric portions g<1> engaging elongated holes c<2> in the sockets c. The studs have squared ends g<2> for turning them, and are secured in adjusted position by lock-nuts g<3>.
Patent GB-1190813-A (GB)
Title: Improvements in or relating to Apparatus for Rolling Tubular Workpieces
IPC: B23D25/04
Filed: 1967-05-05
Abstract: 1,190,813. Rolling tubes. ROTARY PROFILES (JERSEY) Ltd. 5 May, 1967 [5 May, 1966; 17 Aug., 1966], No. 19014/67. Heading B3M. Apparatus for rolling a tubular workpiece includes a throat through which the workpiece passes, an annular series of rollers being positioned in the throat, with the axially outer parts of each roller rolling in line contact with a circular section backing member. A series of rings of rollers 14 may be used for tapering a tube, each roller either being freely mounted for limited movement of its axis in a groove of a housing 10, being mounted on a stub axle, being skewed relative to the tube axis, or being backed (Fig. 5) by a further roller. Further rollers may be positioned within the tube and supported by a mandrel. Internal rollers 50, Fig. 10, together with external rollers 40 or needle rollers 56 are used to size a tube drawn past the rollers. Plugs 52 and 53 of increasing size and provided with oil grooves 55, 57, serve to straighten the tube as rolling progresses. Internal (Fig. 11) or external (Fig. 12) sizing of a tube is performed by supporting the tube by a housing 6 or mandrel 82 and traversing the rollers 70 and 80 over the inner or outer tube surface. By suitably profiling the bore 66 or mandrel 82, splines may be produced on the tubes.
Patent GB-894671-A (GB)
Title: Improvements in or relating to tube seals and the like
Inventor: BLAIR DAVID R
IPC: F16L19/08
Filed: 1958-06-13
Abstract: 894,671. Tube joints. CHICAGO FORGING & MANUFACTURING CO. June 13, 1958, No. 19083/68. Class 99(1). A seal unit for tubes comprises a cup-like retainer member 25, e.g. of metal or nylon, having a cylindrical smooth-surfaced wall 28 and an apertured bottom wall 29, a tube-gripping ring 26 seated on or adjacent a substantially radical surface on the wall 29 and an elastic sealing ring 27, e.g. of synthetic rubber, seated against the ring 26 and within the wall 28. An annular groove 30 is formed in the member 25 for reception of the annular wall 40 of the ring 26 which has a conical portion formed with teeth 42. A reinforcing ring 13 is seated against the ring 26 or on the wall 29 of the member 25. Alternatively two reinforcing rings are placed one on each side of the ring 26. The real unit is held on a tube 1 to be joined to a fitting 2 by a nut 15 which co-operates with the fitting. On screwing the nut 15, the ring 27 is compressed between the end surface 11 of the fitting and the ring 26 and the teeth 42 of the latter penetrate the tube 1. Over-compression of the teeth 42 is prevented by the surface 32 of the wall 29 of the member 25 and the ring 13. In a modification, the reinforcing ring is cup-shaped for reception of the tube-gripping ring which has no circumferential wall, the bottom wall of the reinforcing ring bearing against the wall 29 of the member 25 which is engrooved ; alternatively, two tube-gripping rings in contact with each other, or spaced by a washer, are fitted within the reinforcing ring.