baber/WOPTO huggingface dataset:
Patent GB-277860-A (GB)
Title: Improvements in motor operated electric switches
IPC: H01H3/26
Filed: 1927-02-15
Abstract: 277,860. R÷nnberg, D., and Allmõnna Svenska Elektriska Aktiebolaget. Feb. 15, 1927. Switches, actuating.-The operating shaft 2 of a switch is coupled to a wheel 1 driven by an electric motor by a key 3 which slides in a diametrically-arranged slot 4 in the shaft 2 or wheel 1 and is pressed by a spring 5 into a groove in the other member. The key 3 has a portion projecting to the left which normally engages a hole, consisting of a cylindrical portion 18 and an eccentric portion 17 in a member 6, the portion 18 holding the key 3 out of engagement with the wheel 1. To operate the switch, the motor having been started, an electromagnet 9 is energized and its armature, acting through linkage 8, pulls the member 6 to the left in which position it is held by a latch 10. As soon as the slot in the wheel 1 comes opposite the key 3, the latter enters it and the shaft 2 is driven by the wheel to operate the switch. The magnet 9 is now deenergized but the member 6 is held by the latch 10 till the shaft 2 has completed half a revolution when a cam 12 lifts a pin 13 and releases it, and the member 6,driven by a spring 7 moves to the right till a shoulder 14 on it engages the left end of the key 3 and prevents further movement. During the next half revolution the sides of the eccentric hole 17 force the key 3 fully into its slot 4, till eventually the member 6 can move fully to the right into its original position and the shaft 2 is again uncoupled. The above arrangement also enables the shaft 2, and therefore the switch, to be operated by hand.
Patent GB-289582-A (GB)
Title: Improvements in the manufacture and production of soap
IPC: C11D9/26
Filed: 1927-02-15
Abstract: 289,582. Hatfield, A. E., Alliott. E. A., and Achille Serre, Ltd. Feb. 15, 1927. Soaps, materials for making-In making a soap specially suitable for dry cleaning, a fatty acid with a setting point below 36‹ F., and preferably below 31‹ F., is partially saponified with aqueous solutions of ammonia or of the carbonates or hydroxides of potassium or sodium, and an emulsifying agent is incorporated comprising chlorinated hydrocarbons such as perchlorethylene, trichlorethylene or pentachlorethane, or free fatty acids and alcohol, e.g. methylated spirits. Cyclohexanol may be added, or, if used alone as stabilizing agent, fatty acids with setting points up to 50‹ F. may be used and may be wholly saponified. Purified oleic acid is used and is saponified to the extent of 65-75 per cent. Water may be added to the soap, which is spirit soluble.
Patent GB-474124-A (GB)
Title: Improvements in gas purifiers
IPC: C10K1/22
Filed: 1937-02-13
Abstract: 474,124. Gas purifiers. KLONNE, M., and KLONNE, M. Feb. 13, 1937, No. 4390. Convention date, Sept. 19, 1936. [Class 55 (ii)] In a gas purifier, particularly for the removal of sulphur compounds from town gases, wherein the purification is effected by a dry granular material 4 packed into an annular chamber with perforated walls 2, 3 traversed radially by the gas, the inside wall 3 of this chamber is divided horizontally into separately removable superimposed sections. The sections are provided with radial. arms having a central eye 12 for engagement with a crane hook and on removal from the top, the purifying material falls through the centre of the purifier to be discharged by a conveyer 13. The annular chamber is surrounded concentrically by a gas chamber 1 provided with a gas inlet or outlet 10. To prevent excessive packing of the purifying material, the annular chamber is fitted at its mid-part with a horizontal partition 15 projecting into the centre of the purifier. Immediately below the partition, the annular walls are imperforate.
Patent GB-739935-A (GB)
Title: Improvements relating to the control of fluid flow
Inventor: ALFORD JOSEPH SAVAGE
IPC: F02K1/78
Filed: 1954-02-15
Abstract: 739,935. Turbines. GENERAL ELECTRIC CO. Feb. 15, 1954, No. 4413/54. Class 110 (3). A diffuser for the discharge side of a gas turbine comprises a pair of concentrically arranged diverging walls 11, 12 defining an annular passage, wherein stub vanes 16 projecting from the inner wall towards the outer wall are combined with straightening vanes 18 projecting from the outer wall towards the inner, such that vortices generated by the vanes 16 are substantially cancelled by those generated by the vanes 18 and the chords of the vanes are placed at an angle to the direction of fluid flow through the passage. The vortices generated by the tips of the blades delay the separation of a boundary layer of fluid, and the blades are arranged to remove any swirl from the fluid discharged. In the arrangement shown the vanes 18 are equal in number to the vanes 16 and are spaced downstream therefrom with their axes aligned and at the same angle to the turbine fluid discharge; in a modification, the vanes in each set may be placed opposite the spaces between the vanes in the other set. In a further modification the two sets of vanes may be placed at the same position axially of the passage; a second pair of sets of vanes may be placed downstream from the first sets, the straightening vanes in the second set being longer than those in the first, and a third set of stub vanes only may be placed downstream from the second sets of vanes. The vanes are preferably substantially perpendicular to the inner wall 12 of the passage, and the circumferential spacing in each set is preferably equal to the chord of the blades. Conventional straightening vanes of straight or twisted profile may be used in conjunction with the vanes according to the invention.
Patent GB-1094879-A (GB)
Title: Evaporator for obtaining crystals from organic salt solutions
IPC: B01D1/00
Filed: 1965-02-02
Abstract: 1,094,879. Crystallizing by evaporation of solvent. STANDARD-MESSO G.m.b.H. Feb. 2, 1965 [April 22, 1964], No. 4419/65. Heading B1B. An evaporator 1, suitable for obtaining crystals from solutions, has a circulation pump 5 actuated by a shaft 8, the shaft being surrounded by a protecting tube 9 which extends downwardly to beneath liquid level, and means being provided for maintaining an air pressure in the tube in excess of that in the vapour chamber above the liquid level. The upper part of the apparatus which defines the vapour chamber is cooled to prevent caking by water flowing through chambers 17 formed by welded on sheets 16. The working of the apparatus is disclosed in Specification 1,094,878.
Patent GB-1463382-A (GB)
Title: Semiconductor data stores including binery signal regenerating circuits
IPC: G11C11/419
Filed: 1974-01-31
Abstract: 1463382 Data store circuits SIEMENS AG 31 Jan 1974 [23 Feb 1973] 04457/74 Heading H3T A semiconductor data store comprises two storage fields 22, 33 each having a digit line 77 or 88 connected to a plurality of one transistor storage elements 2 or 3 and a binary signal regenerating circuit including a bi-stable circuit 4, 44; 5, 55, an arrangement 9 for interrupting the normal feedback, buffer transistors 1, 11 and bias setting arrangements 91, 92. In operation, initially the voltage applied at different terminals are controlled in such a manner that nodes 7, 8 have the same potential with the bi-stable circuit in the off state. The digit lines 71, 81 are initially discharged by bias FETs 91, 92 and then allowed to charge up via FETs 1, 11 to the same potential. When a selected storage element 2 or 3 is enabled to be read out, the potential on the digit line 77 or 88 is increased or decreased. In the event of a decrease in potential, charge flows from terminal 7 or 8 to the digit line as to re-establish the potential to its initial value. Subsequently when the bistable circuit is turned on, it is set in one of its stable states with a further reduction in the potential of the same node 7 or 8 and a consequent reduction of the potential on the associated digit line. The increased or much decreased potential on the digital line may be used to refresh the stored data. Fig. 3 (not shown) relates to an alternative regnerating circuit in which a shunt transistor is used to equalize the potentials at the nodes 7, 8.
Patent GB-999627-A (GB)
Title: Strip holders
IPC: G03B21/64
Filed: 1961-10-26
Abstract: 999, 627. Photographic, film strip holders. EASTMAN KODAK CO. Oct. 26, 1961 [Oct. 31, 1960], No. 4634/65. Divided out of 999,626. Heading G2A. A photographic film strip holder has a transparent inner portion in which the film strip is mounted, and which is slidable within an outer portion. As shown, the holder consists of an inner transparent part 43 which can slide within an outer part 41. The inner part 43 carries a film strip F removably held in grooves as at 45. When the inner part is in the closed position, i.e. wholly within the outer part, it may be so retained by a pin and detent arrangement. The film strip carries a series of images, any of which can be viewed in the projection apparatus of Specification 999,626 by pulling out the inner part the appropriate distance. A plate 55 on the outer holder carries indicia which identify the information stored on the particular film strip.
Patent GB-243580-A (GB)
Title: Apparatus for machining on an ordinary lathe polygonal articles such as bolt-heads, nuts, collars and the like
IPC: B23B5/44
Filed: 1925-02-19
Abstract: 243,580. Hofstee, A. C. Feb. 19, 1925. Attachments for turning nuts and boltheads; chucks; indexing.-In apparatus for machining in an ordinary lathe polygonal articles such as bolt-heads, nuts, collars, &c., the work-piece 7 is gripped in a double-ended collet 5 mounted in a sleeve 4 in a frame 1 secured in the chuck 2 of a lathe, the work axis being at right-angles to the axis of the lathe centres and the work being automatically indexed at each revolution of the lathe spindle. The frame carries a shaft 17 which is held stationary by a rod 21 passing through the hollow spindle 20 and having a carrier engaging a stationary part of the machine. The shaft 17 carries a. bevel-gear 3 engaging a bevel gear 16 on a shaft 13 which carries at its upper end a pin actuating a Geneva stop 8 mounted on the sleeve 4. In operation, after the work has passed the tool 26, the Geneva. stop is actuated through the bevel wheel 16 running on the stationary wheel 3, and indexes the work one-sixth of a revolution before the next cut. Different Geneva stops having four, six and eight slots are provided, or a gear ratio of 1 : 2 may be used between the gears 3. 16, to enable four sided work to be produced when a stop having eight slots is in use. A number of interchangeable collets are provided to accommodate work of different diameters. For machining nuts, the blank is secured on a threaded rod and is held by a locking nut, or in some cases the bolt itself may be inserted from the outer end of the sleeve 4 and used for this purpose. In a modification, the workholder is held stationary while the tool is rotated together with the shaft 17.
Patent GB-1262501-A (GB)
Title: Semiconductor devices and methods of making them
Inventor: GLINSKI VINCENT JOHN
IPC: H01L21/74
Filed: 1969-01-29
Abstract: 1,262,501. Semi-conductor devices. WESTERN ELECTRIC CO. Inc. 29 Jan., 1969 [5 Feb., 1968; 23 Dec., 1968], No. 4859/69. Heading H1K. In the manufacture of a semi-conductor device an N-type epitaxial layer 47 is deposited on a P-type substrate 40 in which has previously been provided an N-type region 46. An N+ region 48 is then provided in the epitaxial layer 47, e.g. by diffusion or ion implantation, extending towards or reaching a portion of the now buried region 46, and a non-selective introduction of P-type dopant atoms is then effected at a concentration sufficient to convert a surface layer 50 of the epitaxial layer 47 to P-type conductivity but not sufficient to alter the conductivity type of the N+ region 48. Optionally additional N-type dopant material may be introduced into the surface of the N+ region 48 to compensate for the loss of conductivity due to the non-selective P-type dopant introduction. The embodiment shown comprises a bipolar transistor isolated from other components in an integrated circuit by a field-effect-type pinching off of the normally conductive channel through the remaining N-type portion of the epitaxial layer 47 due to the reverse biasing of PN-junctions between the layer 47 and the substrate 40 and surface layer 50 respectively. One of the other circuit components may be a resistor. Figs 1-7 (not shown) illustrate a variation of this embodiment in which device isolation is effected by means of a P-type region (31) diffused completely through the N-type epitaxial layer (24) before formation of N+ region (41, 42) which, in this case, extend completely through to the N-type buried regions (22, 23).
Patent GB-1174681-A (GB)
Title: Improvements in or relating to Automatic Gain Control Circuits
Inventor: SCHREINER LOUIS WILLIAM
IPC: H04N5/53
Filed: 1967-02-01
Abstract: 1,174,681. Automatic gain control. WARWICK ELECTRONICS Inc. 1 Feb., 1967 [1 Feb., 1966], No. 4907/67. Headings H3Q and H3T. A keyed television A.G.C. arrangement coinprises a stage 15, Fig. 1, for amplifying the video signal including the line sync. pulses, the most positive part of the output at terminal 32 comprising the sync. pulses. Terminal 32 is coupled via resistor 40 and diode 41 to winding 46 in line pulse generator 20: diode 41 is conductive outside the sync. pulse period, earthing terminal 50 via winding 46, but during the sync. pulse period diode 42 is driven non-conductive by positive-going pulses applied to its cathode. Terminal 50 then rises in potential to the anode potential of amplifier 15 at the tip of the sync. pulses; the resultant pulses are fed via capacitor 49 to a second diode 48, whereby they are rectified and smoothed by filter network 24, 54 to constitute the A.G.C. voltage. A delay bias may be applied to the cathode of diode 48 via a potentiometer 51, 62 or to the anode via resistor 60. In order to balance out sync. pulses fed back into the anode circuit of amplifier 15 from winding 46 via resistor 40, winding 46 is centretapped and a neutralizing pulse is fed back via the second half winding and resistor 47. In a modification, diode 141, Fig. 2, is normally non-conductive and point 50 takes up the potential of the tapping point on potentiometer 57 across the H.T. supply; positive-going sync. pulses derived from winding 246 on the line scan transformer drive diode 241 conductive, so that point 50 again rises to the potential of the anode 32 of the video amplifier at peak sync. pulse: the resultant pulses at point 50 are rectified by a second diode 48. The diodes and the sense of the gating pulses may be reversed in order to obtain a positive-going A.G.C. voltage (Fig. 3, not shown). In order to obtain a current A.G.C. for use with transistor circuits, the capacitor feeding the second diode may do so via a step-down auto-transformer (Figs. 4, 5, not shown): this transformer may be utilized to differentiate the pulses, giving pairs of pulses of opposite polarity which can be rectified by oppositely-poled rectifiers to produce two A.G.C. voltages of opposite polarity (Fig. 6, not shown).
Patent GB-568661-A (GB)
Title: Improvements in or relating to internal combustion turbine plant
IPC: F02C3/16
Filed: 1942-04-15
Abstract: 568,661. Shaft couplings. UMPLEBY, F. April 15, 1942, Nos. 4937 and 11863. [Class 80 (ii)] [Also in Groups XXVI and XXXIII] In a gas turbine plant which may be used for the jet propulsion of aircraft, the rotors 23 are splined to the shaft 19 and the radial flow stage rotor 21 is free on the shaft, but secured to the rotors 23 by rubber discs 22 vulcanized to the rotors 21, 23. The rotors are held against axial displacement by a split ring 24 and this ring is prevented from opening at high speeds by a bush 25 which is slipped over it.
Patent GB-369720-A (GB)
Title: Improvements in or relating to combined propelling, steering and reversing mechanism for canal and like boats
IPC: B63H25/10
Filed: 1931-02-17
Abstract: 369,720. Detachable steering and propelling mechanism for ships. YARWOOD & SONS, Ltd., W. J., YARWOOD, A., and YARWOOD, W. D., The Dock, Northwich, Cheshire.Feb. 17, 1931, No. 4948. Addition to 349,666. [Class 114.] In a combined propelling, steering, and reversing mechanism according to the parent Specification, a reversing action is obtained by the movement of the tiller in a vertical plane, means being provided to convert the up-anddown movement into the bodily rotary movement of the propeller unit. The tiller a is pivoted at b to a fixed frame c and is connected by a link e to one end of a pivoted yoke member f carrying within its jaws a nut g engaging a quick thread screw h on the upper part of a hollow vertical shaft i. The nut g has an extension g<1> engaging a guide for preventing its rotation. When the catch l is freed from the notched standard k the tiller may move up and down consequent movement of the nut causing rotation of the hollow shaft i and the blade-propelling unit. In a modification the tiller reciprocates a screw unit or rod which engages a nut or like member on the hollow depending steering shaft. The threads of this rod and corresponding grooves in the nut may be linked by a series of ball members which fit into both and diminish the friction. In an alternative form the tiller may pivot about a point carrying a toothed quadrant which engages a cam or slot or bevel wheel on the upper part of the hollow shaft.
Patent GB-448283-A (GB)
Title: Coin-collecting box
IPC: A45C1/12
Filed: 1935-02-15
Abstract: 448,283. Postal wrappers. QUINN, H. O., 151, Fleet Street, London. Feb. 15, 1935, No. 4998. [Class 146 (ii)] [See also Group XVII] A coin-collecting box comprising upper and lower members 2, 3 of cardboard, wood, metal, &c. and sides 4 of flexible material such as fabric or tracing linen is mounted on a strip of card, leather, &c. 6, which is adapted to be folded round the collapsed box for postal transmission (Fig. 1). The strip 6 is formed with a narrow flap 8 which can be passed through one or more incisions in the other end of the strip. The upper member is formed with a coin slot, and if desired, with a coin trap. The sides may have preformed folds, and may be supported by foldable wire stiffeners. The box may have advertisements printed thereon.
Patent GB-921097-A (GB)
Title: Method for deodorizing fatty oils and apparatus for the working thereof
IPC: C11B3/14
Filed: 1961-02-10
Abstract: <PICT:0921097/III/1> <PICT:0921097/III/2> Fatty oils are deodorized in a plant the upper part of which is attached to column 1, and which comprises a vessel 2 divided into six compartments 3 to 8 by partitions 9 to 14 and pipe 15.  Pipe 15 is connected at its upper end to pipe 17 which in turn is connected to the lower opening 18 of column 1.  Oil to be deodorized passes down column 1 in the direction of arrow 19 down pipes 17 and 15 and through 20 into compartment 3. Openings 21 are provided in each of the partitions 9 to 13 so that the oil that enters compartment 3 through opening 20 can flow in turn through compartments 3 to 8, and be discharged from the apparatus through an overflow of compartment 8 by pipe 22.  Each compartment contains a steam ejector 24 fed with steam through regulator 25, the flow of which is controlled by valve 26.  Ejectors 24 open into ducts 27 which in turn open tangentially into vertically open cylinders 28; the steam leaving ejector 24 entrains the oil and intimately mixes with it so that the circulation rate within each compartment is greater than the overall circulation rate through the apparatus.  The oil entering cylindrical wall 28 flows back to the compartment bottom, while the steam separates from the oil and rises to enter column 1 through the side openings 29 above the part 17 of pipe 15. To prevent the oil coming out of column 1 from passing through the side opening 29, the openings are provided with edges 30 which slope downwards towards the interior of the pipe.
Patent GB-1182161-A (GB)
Title: Wax-Anhydride Compounds
IPC: C07D207/452
Filed: 1967-02-02
Abstract: 1,182,161. Waxes derived from maleic acid compounds. PETROLITE CORP. 2 Feb., 1967 [14 Feb., 1966; 9 Jan., 1967], No. 5129/67. Heading C2C. [Also in Divisions C3 and C5] A wax-maleic composition (A) is obtained by the free-radical reaction of (i) a "maleic " compound selected from maleic, citraconic, glutaconic, itaconic, methylitaconic and ethylmaleic acids and anhydrides, esters and derivatives thereof, and (ii) a hydrocarbon wax selected from microcrystalline waxes, Fischer- Tropsch waxes and polyalkylene hydrocarbons having a melting point of at least 65‹ C. and a penetration of from 0 to 50, as measured by the ASTM test marked D5/25. Derivatives (B) of the above composition (A) may be prepared by condensing said composition with a polyol, polyamine or an alcohol amine. Composition (A) probably comprises wax - substituted " maleic " derivatives in which the wax molecule may have one or more " maleic " units attached thereto, or said " maleic " units, which may be attached to one or more positions on the wax molecule, may be directly attached to the wax molecule or to one or more other "maleic " molecules; derivatives of such compounds, e.g. esters, amides, ester-amides, imides and salts and poly-derivatives thereof, e.g. polyesters, polyamines and poly salts may also be prepared by conventional methods. The wax moieties employed as starting materials generally have an average of over 40 carbon atoms, and if waxes of a low molecular weight are employed, they are generally blended with higher molecular weight waxes to give said average. The reaction in the preparation of compositions (A) is effected at a temperature which is sufficiently high to promote free radical formation, e.g. 100-250‹ C., and a free radical forming catalyst is employed such as a peroxide, a perphthalate, a per-acetate, cobalt in conjunction with hydroperoxides, inorganic peroxy compounds such as persulphates, azo derivatives, acyl-aryl nitrosoamides or high energy ionizing irradiation. The molecular weights of the compositions (A) may be increased by reaction with polyfunctional compounds capable of reaction with the "maleic " derived moiety or after hydrolysis or esterification of said moiety, to give derivatives (B) referred to above. For example if the polyfunctional derivative employed is (i) a polyol, the derivatives of type (B) obtained may be polyesters or ester acids which may be substituted, (ii) a polyamine, the derivatives of type (B) obtained may be polyamides, acid or ester amides, substituted imides or polyimides, or amide-imides, or (iii) an alcohol-amine, the derivatives of type (B) obtained may be poly- (ester-amides), acid-amides or imide-containing moieties.
Patent GB-1045084-A (GB)
Title: Improvements in or relating to pneumatic vehicle tyres
IPC: B60C11/04
Filed: 1963-02-22
Abstract: 1,045,084. Tyre treads. CONTINENTAL GUMMI-WERKE A.G. Feb. 22, 1963 [Feb. 22, 1962], No. 5135/63. Heading B7C. A pneumatic tyre is provided with a tread, which comprises at least two circumferential rows of blocks 5, 9 in the central region of the tread, said central region consists solely of said blocks, the blocks having edges extending at right-angles to the mid-circumferential line of the tread, and circumferential ribs 13 disposed in the shoulder regions of the tread, and is characterized by the ribs being arranged so that under normal operation conditions, i.e. when following a straight course, substantially the whole load of the tyre is taken by the blocks. The blocks 5, 9 are provided with bores 18 formed radially in the tread and having a diameter of 2 to 3 mm. When a steering deflection occurs the tyre is distorted so that the ribs 13 on the appropriate edge of the tread make contact with the road surface to ensure track-holding.