baber/WOPTO huggingface dataset:
Patent GB-813382-A (GB)
Title: Control means for metal die casting or plastic moulding machines
Inventor: SMITH STANLEY
IPC: B29C45/67
Filed: 1955-09-19
Abstract: 813,382. Controlling injection-moulding machines. E.M.B. CO. Ltd. Sept. 3, 1956 [Sept. 19, 1955], No. 26699/55. Class 87(2). [Also in Group XXII] A platen-retraction controlling device for an injection-moulding machine comprises a hydraulic cylinder, a piston movable in the cylinder, a series of intercommunicating ports in the cylinder to permit the flow of fluid from one side of the piston to the other, adjustable throttles to control said flow, and means operated by the piston for actuating the mechanisms of the machine. A hydraulic cylinder a has an oil reservoir n, side ports al, a2, a3, a4, with an intercommunicating passage a5, throttle valves m1, m2, m3, in the passage a5, between the ports al, a2: a2, a3: and a3, a4, respectively, the port a1 leading directly into the reservoir n and the port a4 leading into the reservoir through a throttle valve m4. A piston b with a through port of ports bl sealed by a spring- loaded disc valve o, has a piston rod c extending through both end walls of the cylinder a, one end of the rod c having a rack f arranged to actuate cam followers k through cams j on a shaft i and pinion g, the movements of the cam followers k controlling the mechanisms of the press, and the other end of the rod c having a piston d in an air cylinder e attached to the cylinder a. In operation, with the platens and the mould closed and with a charge of material injected into the mould, air is admitted into the cylinder e causing the pistons d and hence b to move to the left (in relation to Fig. 1), the piston b displacing fluid which flows from the port a2 to the port al through the throttle valve m1. The rate of flow of the fluid and thus the rate of movement of the piston b is controlled by the throttle valve ml and the valve is adjusted so that during the movement of the piston b from port a1 to port a2 sufficient time is allowed for the material in the mould to set. Further movement of the piston b, past the port a2, causes fluid to flow through port a3, valve m2 to port a2, the adjustment of the valve m2 allowing sufficient time for the injection mechanism to be withdrawn and returned to its initial position. The final movement of the piston b, past the port a3, causes fluid to flow through the port a4, valve m3 to port a3, the adjustment of the valve m3 allowing the mould to be opened and the moulded article ejected. During this third stage of movement the throttle valve m4 may be opened, by-passing the port a3 and hastening the mould opening and article ejection. During the return stroke of the piston b fluid pressure opens the disc valve o. The cams may be arranged to close the mould and restart the process for a continuous cycle of operation.
Patent GB-645674-A (GB)
Title: Improvements relating to the production of phosphatic fertilizers, particularly of superphosphate
IPC: C05B1/10
Filed: 1948-10-14
Abstract: <PICT:0645674/III/1> In the production of phosphatic fertilizers, such as superphosphates and nitrophosphates, the semi-liquid mass obtained by mixing ground phosphate with acid, and optionally other ingredients, is matured and solidified in small open containers travelling in a horizontal path or ring, each container being unloaded and refilled once during each cycle.  As shown, ground phosphate and sulphuric acid respectively from measuring devices 1 and 2 are reacted in a mixer-conveyer 3 and discharged into containers 4 travelling in a circle at a speed such that maturing is complete on arrival at the discharge zone which immediately precedes the filling zone.  Tipping and rocking means automatically empty the containers at the discharge zone on to a band conveyer 5 which carries the mass to a disintegrator 6, conveyer 7 carrying the final product to storage.  After discharge, the containers are automatically set upright again and refilled for a subsequent cycle. Gases, containing fluorine compounds, evolved during the mixing and maturing and during the emptying and disintegration are separately exhausted in hoods and passed to washing means.
Patent GB-630598-A (GB)
Title: Pressure operated electric switch
IPC: H01H35/24
Filed: 1947-10-06
Abstract: 630,598. Actuation of switches. DEHN, S. G. (Tyler Fixture Corporation). Oct. 6, 1947, No. 26820. [Class 38(v)] A pressure-operated switch for controlling an electric light 5 inside a refrigerator when the door 4 is opened and closed, comprises a housing 8 embedded in the refrigerator wall 1 and sealed by a diaphragm 9 and open to the atmosphere by a tube 10. A plate 11 secured to the housing 8 has a forwardly-extending arm 13 formed with two ears 14 between which is pivoted at 22 a lever 19 pivoted at its other end to a member 20, which is attachedto the diaphragm 9 by a hook 21. A bar 23 carrying a bridging-contact 32 co-operating with fixed contacts 16 is connected at one end by spaced tongues 25 to the end of the lever 19 and at the other end has lugs pivotally engaging openings 27 in spaced arms 12 of the plate 11. A spring 28 lying in a central cut-away portion of the bar 23 is stretched between the centre of the bar and a bracket 29 secured to the plate 11, such that when the refrigerator door 4 is opened and the pressure on the outside of the diaphragm is momentarily reduced, the lever 19 moves counter-clockwise about pivot 22, and the spring 28 moves overcentre to close the contacts 16, 32 and energize the light 5. Closure of the door 4 increases the pressure inside the refrigerator and opens the contacts 16, 32 to de-energize the light.
Patent GB-166837-A (GB)
Title: An improved suspension device for curtains and the like
IPC: A47H13/01
Filed: 1920-09-21
Abstract: 166,837. Buley, O. E. Sept. 21, 1920. No Patent granted (Sealing fee not paid). Curtains, suspending.-In a suspension device for curtains &c., the curtain &c. is gripped between a base-plate a and a pair of pivotal jaws b, c, mounted thereon; the ends of the jaws being provided with circular disc-like portions b<2>, c<2> engaging, radially-disposed springy lugs a<4> diverging outwards from the ends of the base-plate a. The jaws b, c may be provided with projecting portions f by which the curtain material is pressed into perforations a<8> in the base-plate, or the baseplate may be provided with projections pressing the material into perforations in the pivoted jaws.
Patent GB-716408-A (GB)
Title: Improvements in or relating to wheel guide
IPC: E04H6/42
Filed: 1951-08-29
Abstract: 716,408. Wheel tracks. WHITE, E. E. Aug. 29, 1951, No. 26907/52. Divided out of 716,379. Class 107 A wheel track to allow a motor vehicle to be turned on a short radius, and principally for use in the parking structure disclosed in Specification 716,379, consists of a converging guide 100 for one wheel and a similar guide for the other wheel, acting to position the wheels on the track. The guide shown leads to a channel 33 and consists of a traction plate 109, flanked by rollers 111 ... 116 and having a central roller 110. The wheel approaches from the direction of the arrow and is guided by the rollers into the channel 33. A roller 106 fitted to an upstanding flange 108 protects the sides of the tyres from damage.
Patent GB-290992-A (GB)
Title: Improved process for the separation in the anhydrous state of fatty acids contained in dilute aqueous solutions
IPC: C07C51/46
Filed: 1927-10-11
Abstract: 290,992. Distilleries des Deux-Sevres. May 23, 1927, [Convention date]. Addition to 273,744. Acetic and other aliphatic acids.-In the process of extracting aliphatic acids from their aqueous solutions by means of an acetic ester as described in the parent Specification, a mixture of an acetic ester and a hydrocarbon is employed. The hydrocarbons mentioned are benzene, toluene xylene, and petroleum fractions similar to petrol. In an example a solution of acetic acid containing 200 grams per litre is extracted by means of a solvent consisting of 75 parts of ethyl acetate and 25 parts of benzene. The extract is distilled in a column still to recover the acid and solvent.
Patent GB-444402-A (GB)
Title: Improvements in or relating to receivers for modulated carrier wave signals
IPC: H04B1/30
Filed: 1934-09-19
Abstract: 444,402. Valve circuits for wireless reception; filter circuits. ROBINSON, J., 76, Mill Way, Mill Hill, London. Sept. 19, 1934, No. 26967. [Classes 40 (iii) and 40 (v)] A selective arrangement for wireless receivers or the like comprises a selective device such as a piezo-electric crystal in parallel with an impedance and a valve associated with one of the paths to produce phase reversal. Fig. 3 shows a phase changing valve 33 in the path of an adjustable condenser 34 and in parallel with the piezo-electric crystal 32. Phase adjusting devices 36, 37 may be provided in either or both the paths. Fig. 2 shows a phase changing valve in the path of the piezo-electric crystal 21 and in parallel with the condenser 23. Valves 22, 24 constitute unilateral conducting paths to prevent feed-back of energy between the paths. The valve amplification or the impedance or both may be adjusted to vary the resonance characteristic. Specifications 337,049, [Class 40 (v)], and 352,942 are referred to.
Patent GB-709756-A (GB)
Title: Improvements in or relating to devices for securing ladders to ridge roofs or the like
IPC: E06C7/50
Filed: 1951-11-19
Abstract: 709,756. Roof ladders. FILDES, C. G. Oct. 13, 1952 [Nov. 19, 1951], No. 27036/51. Class 20 (2) A bracket for securing ladders to a ridge roof comprises two parts 1, 13 both supporting a ladder and pivoted together with the part 1 extending beyond the pivot and connected by a strut 26 to a cross bar 20 adjustable by means of bolts and a series of holes on the part 13 to allow angular adjustment of the parts 1, 13 for roofs of different pitch. The ladders are clamped by their rungs by hooks 4, 7 and 16, 19 on each part 1, 13 respectively. Reference has been directed by the Comptroller to Specification 684,420.
Patent GB-417581-A (GB)
Title: Improvements in air craft
IPC: B64C27/32
Filed: 1933-02-02
Abstract: 417,581. Aircraft with rotary wing systems. NAAMLOOZE VENNOOTSCHAP INSTITUUT VOOR AERO- & HYDRODYNAMIEK, 19, Reguliersgracht, Amsterdam. Feb. 2, 1933, No. 27152/34. Divided out of and addition to 417,504 under which a Specification was laid open to inspection under Sect. 91 of the Acts, Aug. 3, 1933. [Class 4.] An aircraft with rotating wings which are articulated for free oscillatory movement to a swash member connected to the fuselage for rotary and free tumbling motion as described in the parent Specification has means for preventing oscillatory movements of the wings in planes other than the planes containing the axis of rotation of the swash member. A swash member 55 universally pivoted to a vertical shaft 57 has bearings for shanks 56 on the hinge members of the wings 60, jointed links 58, 59 connected to the upper end of the shaft preventing rotation of the shanks 56 as the swash member tilts. There may be two or three wings.
Patent GB-707207-A (GB)
Title: Improvements in or relating to welding apparatus
IPC: B23K9/028
Filed: 1952-10-29
Abstract: 707,207. Welding by fusion. BORG-WARNER CORPORATION. Oct. 29, 1952 [Nov. 9, 1951], No. 27174/52. Class 83 (4) Apparatus for welding rotatably supported tubular metallic members 10, 12, Fig. 1, on circumferential seams comprises feed means 16 for supplying weld rod 15 to the weld seams and means comprising a plurality of metallic rollers 28 yieldingly held in engagement with the members for completing an electric circuit through the members. Copper rollers 28 are supported between a pair of plates 41 pivoted at 46 on an arm 26 which is yieldingly urged towards the members by a spring 34 and earthed through a member 32 bolted to the machine frame 25. Free movement of the plates 41 is limited by bolts 49 in the arm 26 engaging a spacer element 42 between the plates. Welding current is supplied to the weld rod from a source 19 through shoes 22, Fig. 3, yieldingly urged in engagement with the rod by springs 24.
Patent GB-355061-A (GB)
Title: Improvements in or relating to variable speed friction gearing
IPC: F16H61/662
Filed: 1930-09-12
Abstract: 355,061. Variable-speed gearing; speed governors. ROBERTSON, J. H. and GUTTERIDGE, L., 1, Albemarle Street, Piccadilly, London. Sept. 12, 1930, No. 27290. [Class 80 (ii).] Variable-speed friction gearing suitable for motorvehicles comprising a driven member k movable transversely with respect to a driving-member a and controlled by centrifugal means within the member a, as described in Specification 306,752, [Class 80 (ii), Gearing, Variable-speed &c.], is modified to limit the action of the centrifugal governing means. This is to prevent undue centrifugal action at high speeds or during direct drive. In Fig. 1, one of a number of masses f is shown in idling position with the drive disengaged. As mass f moves outwards, its boss e screws along a helix d fixed to the rotary casing b so as to compress a spring g acting on the axially-slidable coned tread member a. Member a is advanced resiliently against annulus k, controlling the speed oonfiguration. When a speed is reached with mass f radially outwards, as shown in Fig. 2, the governor action ceases as the masses cannot move further and compress springs g more. In the direct drive position, tread cone a has moved to the right from position shown in Fig. 2, with springs g expanded and frictional thrust eased. In a modification, the bosses e of the centrifugal levers turn over two helices of opposite hand so as to double the compression of springs g. The springs g may be secured to the bosses e so as to resist centrifugal action by torsion. Other springs may be used to that end.
Patent GB-686108-A (GB)
Title: Improvements in or relating to electrical contacts
IPC: H01H11/04
Filed: 1949-10-24
Abstract: 686,108. Making electrical contacts. BRIGGS, J. C., and THESSCO INDUSTRIAL, RESEARCH, Ltd. Oct. 20, 1950 [Oct. 24, 1949], No. 27302/49. Classes 83 (ii) and 83 (iv). Welding by fusion; forging. - Electrical contacts for projection welding to metal supports and of noble metal or an alloy or aggregate in which one or more noble metals predominate, are made by separating blanks from a solid body of the contact metal, automatically feeding the blanks to a die and subjecting each to a single pressing operation to form one or more welding projections on one face, and then subjecting the formed blank to a finishing operation to clean its surface and remove irregularities therefrom. Blanks 19 punched from a strip are fed down a shoot 20, pushed by a pusher 23 into a die 24, pressed to shape by a ram 28, ejected by a plunger 25 which forms the bottom of the die 24, blown into a hopper 31 and finished by tumbling in a liquid vehicle 33 such as soap and water. The contact 11 is positioned on its support 35 and welded between electrodes 39, 41, the duration of flow of welding current being controlled by an electronic controller EC. The electrode 39 is preferably of silver if the contact is wholly or predominantly of silver. Specification 637,568 is referred to.
Patent GB-1083408-A (GB)
Title: Stage lighting control units
IPC: H05B37/02
Filed: 1965-06-28
Abstract: 1,083,408. Programmed control of lighting. STRAND ELECTRIC & ENGINEERING CO. Ltd., and F. P. BENTHAM, P.R. SHERIDAN. June 24, 1966 [June 28, 1965], No. 27314/65. Heading G3N. In a programmed stage lighting system digitally coded control signals, representative of a desired lighting effect, are recorded on a memory element of storage tracks 5 on a magnetic drum 1 and transferred, to and from, active tracks A, B by a unit 6 routed by a network 7 linked to a master fader 4. The tracks A, B are functionally interchanged by a cross-over switch 7a. The control signals from tracks A, B are fed through amplifiers 9A, 9A to gates 10a, 10b wherein each word of a control signal is separated into a dimmer channel line 11a, 11b. The first word from each active track is fed to a digital indicator 12a, 12b to show which memory element has been written into tracks A, B. The separated word is fed through a digital to analogue converter 13a 13b providing a dimmer level signal to an indicator 3 and a signal to an amplifier 14a, 14b, the gain of which is adjusted by the master fader 4 through a switch 17. The amplifier outputs are fed to a comparator 19, the dimmer level output of which is determined by diodes as the larger of the signals in the tracks A, B, or their sum, when a unit 22 is connected by switch 17C, and is fed to a channel of a dimmer 23. The modification of a control signal stored in a memory element is effected by feeding the dimmer level signals to a scanning switch 24 whose single output is connected to a summing amplifier 26 having a second input from a keyboard 2. A switch 27b in each channel of the keyboard is connected to a unit 29, operative at clock frequency, to search for a depressed key and control the switch 24, through a unit 30, to select the dimmer channel corresponding to the depressed key. The output of amplifier 26 is fed through an analogue digital converter 31 and a read-out circuit 32, which are synchronized by the control 30, to the switching network 7 to modify the record on an active track. Alternatively, the selected channel can be modified by a switch 25 which changesover from the scanning switch 24 to a potentiometer 28.
Patent GB-1093239-A (GB)
Title: Code converter
IPC: H03M7/16
Filed: 1966-06-20
Abstract: 1,093,239. Selective signalling. SPERRY RAND CORPORATION. June 20, 1966 [June 24, 1965], No. 27408/66. Heading G4H. A cyclic-binary to pure-binary code converter exploits the magneto-resistive property of thin magnetic films. As described, each of three thin magnetic films 10, 12, 14, Fig. 2, has the property that the resistance across a film, e.g. from a conductor 16 to the input of an amplifier 50, is a minimum when the film is not subjected to a magnetic field, but increases when current is passed through (either positively or negatively) a vertical conductor, e.g. 22, inductively coupled to the film. In the quiescent state of the circuit shown, current flows from a battery 38, across film 10, through amplifier 50 and via a vertical conductor inductively coupled to film 12, the effect of this current on film 12 is, however, nullified by a steady bias current through a second vertical conductor 28 also inductively linked to film 12. A similar current flows from a battery 40 and sees film 12 in its low resistance condition because the net field applied to it is zero. In operation, the bits of the cyclic-binary word are applied to vertical conductors 22, 24, 26, inductively coupled to the films. This changes the resistive states of some of the films and these changes are detected by detectors 32, 34, 36 to provide the pure-binary output bits. Each current that is applied to the vertical conductors to represent a bit of the cyclic-binary code is such that its inductive effect on a film is nullified if the preceding film changes its resistivity state. In a second embodiment (Fig. 3, not shown), A.C. coupling is used between films.
Patent GB-1472578-A (GB)
Title: Continuously producing a fermented liquid
IPC: C12C7/26
Filed: 1974-06-20
Abstract: 1472578 Sterilizing liquids CENTRE DE RECHERCHES ET DE DEVELOPPEMENT TECHNIQUES PRODUITS ALIMENTAIRES 20 June 1974 [20 June 1973 19 Oct 1973] 27450/74 Heading A2D [Also in Division C6] A fermented liquid e.g. beer, is produced under sterile conditions from constituents which have been previously sterilized and in a plant protected against any introduction of foreign micro-organisms. Thus, concentrated wort and bittering substances are sterilized by direct injection of vapour into the medium to achieve flash sterilization and homogenisation at 100-170C for 3 seconds - 30 minutes, sterile compressed air or oxygen is used to aerate boiled, pre-sterilized wort and to deliver it to a precipitate separator, prior to fermentation. The other main components of apparatus have provision for the injection thereinto of sterilizing fluid. A full description of the production of beer under the required conditions of sterility is given. In the described process, clarified hopped wort is fermented in a tower by yeast attached to an inert carrier e.g. diatomaceous material or granulated polyvinyl chloride, and the organoleptic properties of the resulting beer are improved by treating the beer with proteolytic enzymes attached to an inert carrier e.g. brick, silica, glass, sand, silica-based compounds including halogenated silica and amino silica, and activated clay. The carriers occupy substantially the while internal volume of fermentation and enzymatic treatment towers, respectively.
Patent GB-341061-A (GB)
Title: Improvements in and relating to glow discharge tubes for amplifying, detecting and generation of currents
IPC: H01J3/02
Filed: 1929-09-10
Abstract: 341,061. Discharge apparatus. SEIBT, G., 11, Hauptstrasse, and BLEY, H., 23, Bennigsenstrasse, both in Schoneberg, Berlin. Sept. 10, 1929, No. 27472. Convention date, Oct. 17, 1928. [Class 39 (i).] In a glow discharge tube for amplifying, detecting and generating currents, a glow discharge taking place between a cathode and an anode is used in place of a heated cathode and the electrons starting from the glow discharge and passing to a second anode, are acted upon by a controlling electrode, the first anode being constructed in the form of a plate. In Fig. 1, the glow discharge takes place between the cathode k and the first anode a<1>. Between the anode a<1> and a second anode a<2> a controlling grid r in the form of a frame is placed. The frame r may be replaced by a net-like member slightly larger than the plates a<1>, a<2> to give a larger amplification factor. In these arrangements electrons are drawn from the space between the cathode k and anode a<1> from the edges so that by constructing these plates and preferably also the plate a<2> as U-shaped members or providing a number of openings therein the edge effect may be increased. The controlling electrode may be a helical member surrounding the second anode a<2>. The discharge electrodes may be arranged as in Figs. 8, 9 so that the main discharge field is parallel to the anode a<2>. The system of electrodes s, a<2> may be duplicated in the arrangement according to Fig. 8 as well as in that shown in Fig. 9. Fig. 5 shows the connections which may be employed. A voltage source n of about 220 volts is shunted by a potentiometer P. The negative terminal is connected to the cathode k and the anodes a<1>, a<2> are connected respectively to a tapping p<1> at about 200 volts and a tapping p<3> at about 210 volts. A telephone L is connected in the circuit of anode a<2> and the lead to the controlling electrode which is tapped at a point p<2> which is negative with respect to p<1> contains the secondary of a transformer t, the primary of which receives the current to be amplified. The anode a<2> may have a positive potential of only 1 volt and the controlling electrode a negative bias of 1-2 volts with respect to the anode a<1>. The gas in the tube which is preferably neon at about 6 mms. pressure should be as pure as possible and free from mercury. The mesh of the controlling grid s should not be too small, but should be 4 mms. or more. The leads to the electrodes are surrounded by insulating material e.g. glass tubes to avoid direct discharges between them. The invention is particularly applicable in connection with mains-operated radio receiving sets.