baber/WOPTO huggingface dataset:
Patent GB-321541-A (GB)
Title: Improvements in and relating to water turbines
IPC: F03B3/18
Filed: 1928-08-27
Abstract: 321,541. Thompson, T. Aug. 27, 1928. Combined-flow type; screw motors.- A water turbine comprises a rotor having two or more sets of runner blades e, f in a casing a, the connecting passage h being of stream-line form. In one set of blades the flow is axial-radial and in the other axial. Regulating.-The turbine may be regulated by pivoted plates g in the admission duct, or by moving the runner e axially within the casing. Balancing moving parts.-The bearings may be relieved of the weight of the rotor by establishing a vacuum in the space i above the rotor core e<2>, which may be formed hollow to provide a buoyancy effect. A water or oil seal, which also serves to lubricate the parts, is provided at the region a'. The flow in two rotors may be in opposite directions.
Patent GB-888950-A (GB)
Title: Photographic camera with an automatic depth of focus indicator device
IPC: G03B7/085
Filed: 1960-09-15
Abstract: 888,950. Photo-electric exposure controls. AGFA A.G. Sept. 15, 1960 [Sept. 19, 1959], No. 31879/60. Class 40(3). [Also in Group XX] A moving coil galvanometer controlling the exposure of a camera is coupled to a depth of focus range indicator. Diaphragm vanes 10, 11, Fig. 3, are positioned by two photo-electrically energised moving coils 12, 13 and extended to form pointers 8, 9 which co-operate with a transparent depth of focus scale 5 on the camera focusing ring. In other embodiments, Figs. 4 and 5 (not shown), a single coil actuates the vanes through pin and slot or cam means and the pointers are separate from the vanes or comprise coloured plates visible in the viewfinder. In a camera in which the diaphragm 92, Fig. 6, is adjusted until a follow-up pointer 95 coincides with the galvanometer pointer 102, a slide 105 geared to the coil 98 defines the depth of focus range by co-operation with a curved edge 113. Springs 118, 119 relieve coil 98 of the weight of slide 105.
Patent GB-450066-A (GB)
Title: Improvements in air admitting devices in internal combustion engines
IPC: F02M23/06
Filed: 1935-11-18
Abstract: 450,066. Auxiliary air admission devices. MITTAG, A., 135, Bautznerstrasse, Dresden, Germany. Nov. 18, 1935, No. 31886. [Class 7 (ii)] During overrunning, air is supplied through an inlet controlled by a two-seat valve, the discs of which form part of the wall of the mixture conduit when the valve is closed. A double valve 9 which forms part of the walls of the induction pipe 7 is normally pressed on to its seating by a spring 11 and closes air inlets 8, but on the commencement of overrunning, when the accelerator pedal 27 is released, an operating rod 26 thereof engages a contact 29, on a pivoted bar 32, with a contact 30 to complete the circuit of an electromagnet 15 which attracts a disc armature 13 on the rod 10 of the valve 9 against the action of the spring 11 and open the valve 9. Simultaneously, a projection 18 on a pivoted armature 17 snaps past a cone 14 on the valve rod to hold the valve open after a projection 25 on a resilient blade 24 has lifted a contact 21 on the blade away from a contact 23 in the circuit of the electromagnet 15 to break the circuit. The contact 21 on the blade 24 now engages a contact 22 in circuit with a second electromagnet 16 and a contact 31 opposite the contact 30. Movement of the rod 26 in opening the throttle, moves over the bar 32 to engage the contacts 29, 31, the magnet 16 attracts the armature 17 freeing the core 14 from the catch 18 and the valve 9 closes.
Patent GB-429003-A (GB)
Title: Improvements in apparatus for the protection of electric machines
IPC: H02M7/00
Filed: 1934-11-06
Abstract: 429,003. Protective cut-out arrangements; control of D.C. motors. SIEMENSSCHUCKERTWERKE AKT.-GES., Siemensstadt, Berlin. Nov. 6, 1934, No. 31913. Convention date, Nov. 6, 1933. [Classes 38 (iii) and 38 (v)] A protective arrangement for a machine 1 which is supplied with energy from A.C. mains 4 through a rectifier when acting as a motor and is arranged to return energy to the mains through a converter when acting regeneratively, comprises switches 5, 6 in the D.C. circuit and a switch 7 or switches in the A.C. circuit, the switches 5, 6, 7 being so interlocked that the interruption of the connection between the rectifier and converter discharge vessels, as 2, 3 and the mains is prevented while switches 5, 6 are closed. Thus, contacts of an overload relay 18 or lower contacts of a no-volt relay 19, on closure, energize from a battery 23 the release coil 9 of switches 5, 6, which, on opening, make at 12 the circuit of the release coil 14 of the switch 7. A similar cycle occurs on closure of the manual switch 20. The switches 5, 6 are held open by a latch which is controlled by a coil 11, responsive to either the voltage or speed of the machine 1, and by a coil 10. When voltage is restored on the mains 4, and assuming 22 is closed, relay 19 picks up and energizes over the closed contacts 13 the release coil 15 of a latch holding 7 open. 7 may therefore be closed by hand or remote control, and when closed, makes at 16 and over contacts 21 of a motor-control device 8 (provided the latter is in the "off" position) the circuit of coil 10, so unlatching and permitting closure of 5, 6. The coil 11 acts to prevent resetting too soon after disconnection and before the motor comes to rest, but if only a momentary fault occurs, coil 14 is not energized when 5, 6 open. The Specification as open to inspection under Sect. 91 states also that switching off may be made responsive to mechanical defects in the vessels 2, 3. This subject-matter does not appear in the Specification as accepted.
Patent GB-306611-A (GB)
Title: Improvements in the treatment of materials made of or containing cellulose derivatives
IPC: D06P3/40
Filed: 1927-11-28
Abstract: 306,611. British Celanese, Ltd., and Ellis, G. H. Nov. 28, 1027. Addition to 302,775. Yarns &c., treating with liquids.-The process of the parent Specification is modified by using alkaline solutions of zinc, for example sodium or potassium zincates, instead of alkaline solutions of tin; the treated cellulose esters and ethers display similar properties and the. same affinity for dyestuffs as those of the parent Specification. The process may be applied to mixed goods containing cellulose esters or ethers in association with other materials not deleteriously affected by the alkaline solutions employed, e.g. with cotton, viscose or cuprammonium silks. Effects may also be obtained by weaving or otherwise making up yarns or threads containing cellulose esters or ethers which have been treated with alkaline solutions of tin or zinc and with varns or threads of wool or natural silk or other materials which would be deleteriously affected by alkaline solutions. In examples (1) cellulose acetate fabric is immersed for an hour in a solution of sodium zincate, rinsed and soaped and (2), cellulose acetate fabric is passed continuously through a pad mangle or other machine containing a solution of sodium zincate, the material is then batched for three hours, washed, soaped and dried.
Patent GB-1254383-A (GB)
Title: Improvements in or relating to arm rest and mounting assemblies for vehicle passenger compartments
Inventor: REEVES JOHN VINCENT
IPC: B60N2/75
Filed: 1969-06-25
Abstract: 1,254,383. Arm rests; hand grips. ROOTES MOTORS Ltd. 8 May, 1970 [25 June, 1969], No. 32155/69. Headings B7J and B7L. In an arm rest assembly for a vehicle passenger compartment, particularly for mounting on doors, an arm rest 17 is pivotally mounted at one apex on studs 18 inside a housing 12, the housing having faces 22 and 23 for limiting the pivotal movement of the arm rest to between two extremes in which the side face 24 of the arm rest is flush with an interior trim panel 10 or in which the arm rest protrudes from the plane of the panel with side face 21 facing upwardly. A coil spring 25 has two legs 26 received in holes 29 and 27 in the housing and the arm rest respectively and is arranged to urge the arm rest into its nearest extreme pivotal position, acting as an "over-centre" spring.
Patent GB-171892-A (GB)
Title: Improvements in pilger or step by step rolls
IPC: B21B21/02
Filed: 1920-11-15
Abstract: 171,892. Fairholme, F. C., and Warburton, H. Nov. 15, 1920. Addition to 107,364. Rolling. - The dovetail-sectioned renewable working face a, Fig. 2, for pilger rolls is secured between the collars d, d<l> by making the collar d<1> undercut and forming the other collar with circumferential recesses e and overhanging circumferential abutments d<2>, the recesses receiving transversely tapering wedges f, Fig. 4, tightened by a master wedge h. Encircling bands i entering recesses in the sides of the working face are preferably provided.
Patent GB-1152750-A (GB)
Title: Device for Securing a Cover to the Open End Portion of a Cylindrical Container
Inventor: SCHAEFER EDWARD EARL
IPC: B65D45/34
Filed: 1966-07-18
Abstract: 1,152,750. Container closures. E. E. SCHAEFER. 18 July, 1966, No. 32252/66. Heading B8T. [Also in Division E2] A device for securing a cover to the open end portion of a cylindrical container, comprises a split clamping ring 14 having spaced end portions, a swingable lever 31 pivotally connected at one end to one of said end portions, said lever being operable to effect expansion and contraction of said ring on swinging movement of said lever in opposite directions, and a catch for holding said lever in a ring-contracting position, said catch comprising a rib 62 on said lever and a pocket 57 in said ring for receiving and retaining said rib, said rib and said pocket being disposed closely adjacent the pivot axis of said lever, whereby the effort required to move said lever into and out of said ring-contracting position is reduced. The lever is pivotally attached to the end portion of the ring by a bracket 37, the bracket having the pocket 57. A link 47 is connected between the lever and the other end portion of the ring and the link and lever together constitute a toggle. The link is connected to the ring by a bracket 52. The rib 62 and the pocket are in addition to an arm 66 pivoted to the ring and which engages a free end portion 68 of the lever to retain the lever in clamping position. The arm 66 has a flange 69 with a hole 71 therein which is positioned adjacent a flange 74 on the lever which also has a hole so that a wire can be passed through both holes. The upper surface of the rib 62 is inclined and thus acts as a ramp to assist movement of the rib into the pocket.
Patent GB-447267-A (GB)
Title: Improvements in the colouration of cellulose derivatives
IPC: D06P1/44
Filed: 1934-11-09
Abstract: Cellulose esters or ethers dyeing; inorganic colouring-matters dyeing with; printing.--Filaments, yarns, foils, films, and other products having a basis of an organic derivative of cellulose are coloured by interaction thereon of reagents to form an inorganic pigment, one reagent being first applied, the material then dried and the other reagent applied, and the application of at least one of the reagents being effected in presence of a swelling agent for the cellulose derivative.  Advantageously, at least one of the reagents is applied at a temperature of 50 DEG  C. or higher. Specified swelling agents are ammonium and other thiocyanates, zinc chloride, acetone, acetic acid, dioxane, methylene ethylene ether and methylene chloride.  One of the reagents may itself be a swelling agent.  The reagents may be applied in liquid or paste form or a volatile reagent may be applied as vapour.  The materials may be wetted out, e.g. with solutions of sodium, potassium or ammonium oleate, palmitate or stearate, turkey red oil, propyl- or butyl-naphthalenesulphonic acids or their salts or o -aminoalkylamides of oleic, stearic or palmitic acid.  Specified inorganic pigments produced are barium chromate, from barium chloride or thiocyanate and sodium or potassium chromate, lead chromate, from lead nitrate and sodium or potassium chromate, cadmium sulphide, from cadmium sulphate and sodium sulphide, ferric ferrocyanide, from ferric sulphate and potassium ferrocyanide, cupric sulphide, from copper sulphate and sodium sulphide, cupric ferrocyanide, from copper sulphate and potassium ferrocyanide.  The materials may be subjected to other treatments, e.g. saponification, stretching or shrinking, before, during or after the formation of the pigment thereon.  They may also be loaded, e.g. with barium sulphate, by reaction between suitable reagents of which one, e.g. barium chloride, may be one of the pigment-forming reagents.  The loading methods described in Specifications 443,725 and 443,726 may be employed.  In an example, hanks of cellulose acetate yarn are immersed for 5 minutes in a 30--35 per cent solution of acetic acid at room temperature, lightly centrifuged, immersed for 30 minutes in a dilute solution at 60 DEG C., of copper sulphate again lightly centrifuged, dried, immersed for 15 minutes in a dilute solution at 60 DEG  C., of sodium sulphide containing caustic soda, washed and dried to obtain a saponified coloured yarn.  Yarns may be coloured at intervals along their length by partially immersing the hanks in one reagent, drying, and immersing in the other reagent or yarns with different colours along their length may be obtained by the use of different reagents. Pattern effects are obtained on fabrics, foils, &c. by applying, e.g. printing, one of the reagents locally.
Patent GB-302274-A (GB)
Title: Improvements in or relating to electro-acoustic devices such as loud-speakers
IPC: H04R11/02
Filed: 1928-11-06
Abstract: 302,274. British Thomson-Houston Co., Ltd., (Assignees of Cottrell, M.). Dec. 13, 1927, [Convention date]. Void [Published under Sect. In of the Acts]. Loud-speakers; diaphragms; magnetic instruments.-In a device for the interconversion of mechanical and electrical oscillations, such as a loud-speaker, an armature 7, which passes through a coil 20 and extends between magnet poles 11, 12, is carried by a flexible or resilient member 14 extending in line with the armature and having its extremities anchored to a support 15. A cam 16 is provided for adjusting the tension of the armature, the movement of which is damped by adjustable resilient stops 18, 19. The armature is slotted at its edges to receive lugs 17, Fig. 3, on the inner periphery of the slotted member 14 and is tapered at its lower end for connection through rods 8, 9 and flexible member 10 to the apex of the conical corrugated diaphragm 1. The diaphragm is enclosed at its back by a felt-lined apertured baffle 2 and has its periphery clamped by screws 6 between the baffle 2 and a member 5. A horn may be attached at the base of the diaphragm.
Patent GB-1347347-A (GB)
Title: Division system for a computing instrument
IPC: G06G7/163
Filed: 1971-07-09
Abstract: 1347347 Electric analogue calculating SYBRON CORP 9 July 1971 [27 Aug 1970] 32372/71 Heading G4G [Also in Division G1] A circuit for dividing analogue electrical signals comprises a differential amplifier 20 providing the difference between the denominator and a sawtooth wave which is used to switch alternately FETs 9, 12 in a negative feedback loop of an amplifier 10 depending on whether the difference is positive or negative, the time for each polarity depends on the magnitude of the denominator and the result of so switching the feedback path is that the average gain of amplifier 10 is inversely proportional to the denominator. Since the numerator is the input of amplifier 10, the output e 0  is proportional to the desired quotient. An amplifier 30 and reference voltage at 33 detect when the denominator is zero and FET 8 is then made to conduct. The components are chosen to give a fixed output when the denominator is zero thereby avoiding the spurious results which would otherwise result.
Patent GB-324971-A (GB)
Title: Improvements in bow control device for stringed musical instruments
IPC: G10F1/18
Filed: 1928-11-06
Abstract: 324,971. Dehn, F. B., (Mills Novelty Co.). Nov. 6, 1928. Keyboard stringed instruments; bows.- Stringed musical instruments of the viol class with electrically operated fingering devices are provided with expression-controlling electromagnets in circuits including resistances controlled by pedals or other means to vary the energization of the magnets and so the pressure of the bows on the strings. Resistances in the circuit of a bow-driving electric motor are also controlled to vary the speed of the motor and so of the bows. Each bow 37, Fig. 1, is arranged on a shaft 36 continuously rotated by a motor 11 common to all four bows. Energization of a magnet 7 depresses a sleeve 44 surrounding the shaft 36 and so presses the bow 37 on to the string 38, a spring 39 raising the shaft 36 in its guide 45 when the magnet 7 is de-energized. In a keyboard instrument, Fig. 4, each key 8 closes the circuits of the magnets 6 controlling the finger - ing devices and of one of the bow-magnets 7. The motor 11 is continuously in circuit during playing of the instrument and is prevented from attaining too low a speed by a governor 13. Tapped resistances 15, 16 are arranged respectively in the circuits of the motor 11 and magnets 7 and are controlled by soft and loud foot-pedals 31, 25. The pedal 31 normally short-circuits a section of the resistance 15 and, when the pedal 31 is depressed, this resistance is thrown into the motor circuit. The pedal 25, when depressed, short circuits successive sections of both resistances 15, 16 to increase the pressure and speed of the bow. The pedals 25, 31 are depressed against the action of springs 55, Fig. 2, and carry contacts 26, 27, 58 passing over fixed resistance contacts 17, 18, 32. Each of the pedal contacts comprises a spring-pressed plunger in a tube 60 with a cap 61 for the electric connection. The pivotal movements of the pedals are limited by stops 56, 57.
Patent GB-1478267-A (GB)
Title: Method of autonomous target selection by missiles
IPC: F41G7/34
Filed: 1975-08-04
Abstract: 1478267 Automatic control DORNIER GmbH 4 Aug 1975 [24 Sept 1974] 32497/75 Heading G3N A method of autonomous target selection by missiles, each autonomously guided and having a target homing device and a navigation computer, which are directed in an approach phase in a group to a plurality of targets, comprises (1) guiding the missiles to a common dispersal location (2) causing a missile to carry out a target registering procedure the result of which is stored in the computer (3) selecting a target, (4) informing the homing device and (5) causing the missile to home on to the selected target. The missiles are steered to the dispersal location by inertia navigation in accordance with a preselected flight programme. The selection of a target for a missile takes place with reference to the centre of the perceived target azimuthal distribution angle. And the computer of each missile has a programme whereby a deflection angle is assigned and a course deviation carried out prior to final guidance to the target by means of the homing device.
Patent GB-969863-A (GB)
Title: Improvements relating to the regeneration of catalysts
Inventor: WHITE PETER THOMAS
IPC: B01J27/32
Filed: 1961-09-11
Abstract: A spent catalyst made initially by reacting a halogenatable refractory oxide selected from Groups II-V of the Periodic Table with a compound of general formula <FORM:0969863/B1-B2/1> (where X and Y are the same or different and selected from H. Cl, Br, F or SCl or where X and Y may be replaced by O or S) under non-reducing conditions and at a temperature such that chlorine is taken up by the oxide without the production of free chloride and which has become deactivated during a low temperature conversion process, is regenerated by contacting it at an elevated temperature with an oxygen-containing gas and thereafter rechlorinating the catalyst with a compound of the above general formula.  The halogenatable refractory oxide may be alumina with up to 50% silica, titania, beryllia, boria, zirconia or magnesia. Additionally the catalyst may contain platinum or palladium. Specified chlorinating agents are CCl4, CHCl3, CH2Cl2, CCl2F2, CCl3Br and CCl3SCl.  When the halogenatable refractory oxide is Al2O3 it may be prepared by hydrolysis of aluminium isopropoxide in an inert solvent, e.g. benzene.  Examples are given.  Specifications 953,187 and 953,189 are referred to.
Patent GB-646456-A (GB)
Title: Improvements in or relating to visible card indexes
IPC: B42F17/32
Filed: 1947-12-09
Abstract: 646,456. Index tabs for card indexes. RUEGGNAEGELI & CIE., AKT.-GES. Dec. 9, 1947, No. 32511. Convention date, May 30. Addition to 566,809. [Class 16 ] In a doubled index card as described in the parent Specification and comprising a front portion 19, rear portion 20 and intermediate portion 21 between a fold line 25 and a transverse crease 22, a removable strip 26 bearing indicia is mounted on the portion 21 and held in place by a transparent plastic or other strip 27 secured by adhesive to the front and back portions.
Patent GB-392621-A (GB)
Title: Improvements in or relating to the production of artificial filaments, threads, yarns, ribbons, and the like
IPC: D01F2/28
Filed: 1931-11-25
Abstract: Artificial filaments, threads, yarns, ribbons, films, and the like of reduced lustre are obtained by spinning a solution of cellulose or a cellulose derivative, which solution contains a substantially white ketone-aldehyde condensation product.  A suitable condensation product is obtained by condensing one molecule of acetone with six molecules of formaldehyde in the presence of aqueous caustic soda. The formaldehyde may be replaced by its polymers or condensation products, e.g. paraformaldehyde and hexamethylnetetramine.  The condensation product may be incorporated in the spinning solution together with other organic or inorganic pigments, for example, the condensation product and pigment may be ground together, or the condensation product may be formed in the presence of one or more of the other pigments.  The process is applicable to the cellulose organic ester or ether, cellulose nitrate, viscose, or cuprammonia processes.  In an example, the product obtained by condensing 100 parts of 30 per cent formaldehyde with 10,1 parts of acetone in the presence of aqueous caustic soda, is ground in oil and incorporated in a cellulose acetate spinning solution in proportion 2 per cent on the weight of cellulose acetate.  The solution may be spun by dry or wet methods.  Specifications 326,461, 326,462, 328,247, 333,504, 334,195, [all in Class 2 (ii), Cellulose &c.], 346,678, and 346,793 are referred to.