baber/WOPTO huggingface dataset:
Patent GB-972821-A (GB)
Title: A high velocity impact machine
IPC: B30B1/38
Filed: 1961-01-19
Abstract: 972,821. Shearing; metal working presses. PRODUCTION ENGINEERING RESEARCH ASSOCIATION OF GREAT BRITAIN, and H. A. J. DENNISON. April 19, 1962 [Jan. 19, 19611, No. 2248/61. Headings B3H and B3W. . In a high velocity metal shearing or forming machine a tool is carried on an elasticallydriven carrier member to which is directly opposed a similar elastically driven or controlled member which can serve as an anvil. The machine comprises almost similar upper and lower rams 110 and 110A. The ram 110 comprises a cylinder 112 and a piston 114 connected to a tool carrier 118 by three pistonrods 116. High pressure air is stored in an annular reservoir 124 and is admitted to the cylinder by opening valves 128, 129 which are rapidly actuated by cylinders 130, 131. Air for the return stroke is admitted by a valved port 132, and air on the other side of the piston is exhausted through a port 134, controlled by a valve 136. An adjustable valve 138 maintains air pressure in front of the piston 114 during the working stroke and prevents damage by impact of the piston with the cylinder end, should the opposing ram fail to operate. The piston velocity is adjusted by a restrictor 142, the tools will normally strike the work before the piston 114 passes the port 140. The upper ram is suspended in the raised position by engagement of a spring-loaded catch 146 with a projection 148 on the piston. The upper and lower ram assemblies are joined by pillars 152 and tie-rods 154.
Patent GB-503573-A (GB)
Title: A device applicable for use with water softeners for domestic purposes
IPC: C02F1/42
Filed: 1938-01-24
Abstract: 503,573. Softening water. PARNHAM, G. S. Jan. 24, 1938, No. 2312. [Class 46] A device for use with a water-softener is adapted to be fitted between hot and cold water taps and the softener, water from either or both taps being supplied at will to the softener, and means arc provided whereby water from one tap may be drawn off without passing through the softener. In the construction shown, a hollow body 5 is connected through detachable tubes 3, 4, to hot and cold water taps 1, 2, respectively, and through a flexible tube 8 to a water-softener 9. A nozzle 14 with a valve 13 is also provided to enable unsoftened cold water to be drawn, when desired. A perforated tube 15 is secured in the body 5 adjacent to the nozzle 14. The flexible pipe 8 is secured to a projection 6 on the body 5 by means of a hooked ring 10 and a chain 11. The body 5 may be divided and fitted with a union to permit of its extension axially.
Patent GB-445903-A (GB)
Title: Improvements relating to moulding plastic substances
IPC: A21C11/00
Filed: 1935-01-24
Abstract: 445,903. Dies for moulding pies &c. HUGHES, J. W., 114, Bedford Road, Rock Ferry, Cheshire. Jan. 24, 1935, Nos. 2333 and 13881. [Class 87 (ii)] Apparatus for moulding dough and other plastic materials for making shells for receiving meat &c., comprises a die made with inner and outer displaceable members, the interengaging surfaces of which are of tapered form. Perforations or slits in the outer member lead to the air for destroying the suction effect between the plastic material and the outer member when the inner member is withdrawn relatively thereto. Fig. 2 shows a die in which the two members 16, 17 are resiliently connected by springs surrounding pins 20 attached to one of the members. The outer member 16 is perforated and the inner member is provided with lugs 18 for attachment to a machine for lifting the die from a mould containing the dough. Figs. 5, 6 and 7 show a modification in which the outer member of the die is made up of segmental sections 26, 27, 28, 29 which only partially surround the inner member which as shown in plan in Fig.. 7 has curved faces 25 at its ends and dovetail recesses 30 in the connecting member 24 which engage projecting tongues 32 on the outer sections 26 ... 29. The inner member has a ring 34 which is resiliently connected to a flange 33 of the same member by spring pins 35. Alternatively the ring may be connected to the outer member and springs located between the flange 33 and the sections 27, 29 of the outer member. The inner and outer members are connected by a bolt passing through the inner member and terminating in a plate beneath the outer member. When the inner member is retracted after the moulding operation the sections of the outer member move inwardly and at the same time the suction effect is destroyed by the gaps formed between the sections 26, 27 and 28, 29. In a further modification the outer member is composed of overlapping elements which completely surround the inner member and which contract when the inner member is withdrawn. The suction is destroyed by the gaps formed where the edges of the outer elements overlap.
Patent GB-113465-A (GB)
Title: Improvements in or relating to Hand-pieces for Dental Engines.
IPC: A61C1/14
Filed: 1917-02-16
Abstract: 113,465. Western D e n t a l Manufacturing Co., and Osborn, H. Feb. 16, 1917. Chucks.-A dental hand-piece of the kind comprising a double cone clutch for the tool shank and a stepped ramp movable lengthwise of the hand-piece and co-acting with an L-shaped lever to operate the said clutch, is provided with a rotary shaft not slidable lengthwise of the casing and with a ramp adapted to be slidden relatively to the shaft by independent means arranged outside the casing. The complete shaft comprises a barrel portion b screwed at d<1> to a shaft d formed with a chamber h to accommodate a pivoted L-shaped lever f and a ramp i. The shaft is mounted in conical bearings at either end of the casing k. The ramp i is attached to a ring j slidable on and rotating with the shaft and controlled from a ring o mounted outside the casing and fitted with screws p passing through slots q in the casing to a peripheral grooove j<1> on the inner ring j. The ramp when pulled downwards operates the lever f which in turn forces upwards the distance piece g and cone c so as to cause the clutch member a to grip the tool.
Patent GB-123796-A (GB)
Title: Improved Manufacture of Nitrogen Compounds from Carbides.
Inventor: CARLSON OSCAR FREDRIK SVANTE
IPC: C01C3/00
Filed: 1918-02-09
Abstract: 123,796. Carlson, O. F. S. Feb. 9, 1918. Cyanamides.-In the production of cyanamides by reaction of nitrogen on amass to which inert materials and catalysts have been added, the mass is treated in a vertical multi-stage furnace, and is stirred during the reaction with an intensity proportional to the quantity of added substances. The furnace shown comprises a chamber 1 having shelves 2, 3, 4, a gas inlet 6<x>, and two oppositely disposed electrodes 8 for heating. Each shelf is provided with a stirring-device 17, though only that for the shelf 2 is shown. The stirrer is mounted on a rod 18 passing through a stuffing box 25 in a ball-joint piece 19 in a stuffing-box 22 so that the stirrer can be moved about when inside the furnace. The stirrer rod 18 is moved by means of a cross-head 35 carrying rollers 36 running in a guide 34 having a straight and curved part so that the stirrer is moved forwards in contact with the shelf and backwards above the shelf. The travel of the cross-head rollers in the guide 34 is determined at the two ends of the guide by weighted doors 41, 41<x>, as shown. The cross-head is operated by a connecting rod 37 attached to a crank 38 on a shaft 39 driven from a shaft 47 through a segment 48 engaging rollers 46 on a sprocket wheel 45 connected by a chain 43 with a sprocket 42 on the shaft 39. By arranging a number oi segments on the shaft 47, one for each shelf, the stirrers on each shelf may be made to operate at different intervals. The stirrers 17 may be of plough form so as to turn up the material, or may consist of a number of pins or teeth arranged in various ways.
Patent GB-365330-A (GB)
Title: Improvements in photographic view finders
IPC: G02B23/14
Filed: 1931-01-24
Abstract: 365,330. Photographic view-finders. BECK, C. J., Lister Works, Dickenson Street, Kentish Town, London. Jan. 24, 1931, No. 2389. [Classes 97 (i) and 98 (i).] A view-finder of the " brilliant " type for producing an erect and correct-sided image along a line of sight substantially parallel to the axis of the camera comprises two reflecting surfaces set at right-angles across a central horizontal line, two reflectors at right-angles edge to edge at right-angles to the axis of the first pair, a projecting lens producing an aerial image and a collecting lens directing the image to the observer. In the form shown, light from the object is reflected at the surface B, passes through the projecting lens E for producing an aerial image in the plane of the mask H after reflection at the surface D, is collected by the lens G situated close to the mask H and thence passes after reflection at the surfaces C, A to the viewing lens F. The mask H comprises two overlapping leaves H<1>, H<2>, Fig. 4, each having a rectangular opening and being slidable on one another to vary the size of the opening while maintaining the proportions and centre constant, by means of a shaft L parallel to a diagonal of the opening engaging halfnuts K on the leaves. The view-finder may be hinged to a bracket on the camera, the line of sight being adjusted at a small angle to the camera axis by means of a rod and pointer.
Patent GB-265219-A (GB)
Title: Means for automatic parallel connection of synchronous alternating current generators
IPC: H02J3/42
Filed: 1927-01-27
Abstract: 265,219. Pearson, E. Jan. 28, 1926; [Convention date]. Synchronizing dynamo - electric machines; regulation, automatic. - A water turbine steam engine &c., driving an alternator G, Fig. 1, is started-up in response to the closing of a switch 6, located either at the power station or at a distance, causing energization of a solenoid 7 associated with a governor C thereby opening the admission valve to the prime mover. Thereafter the governor is automatically controlled by a synchroscope SM until the generator is running in synchronism with the mains N, whereupon a main switch S is closed, the synchroscope put out of action, the governor suddenly opened to cause the generator to take its share of the load and a voltage regulator comprising a contact making voltmeter 111, reversible motor M<2> and rheostat R is brought into action to control the field H of the alternator or the field of an exciter L. Closure of switch 6 also causes closure of a relay 3 connecting a transformer T to the lines 1, 2 from which is energized through line 12 a switch 15 to connect the lines 1, 2 and also a transformer T<1> to the synchroscope driving unit and to energize a time-lag relay 71. The pointer V rotates one way or the other according to the relative frequency of the generator G and the mains N and carries a friction driven disc against one or other of two contacts 42, 43 thereby controlling a reversible motor M<1> to adjust the governor C to give the correct speed of the prime mover. When the pointer V is rotating slowly enough, an arcuate contact 29 thereon remains in contact with a graphite roller 31 sufficiently long for a time-lag relay 76 to close, whereupon when a pin 30 also carried by the pointer contacts with another roller 32 a quick acting relay 78 closes and completes the circuit of the solenoid s to close the main switch S. An auxiliary switch arm 11 associated with the switch S, opens the circuit of the line 12 thereby putting the synchroscope out of action, closes a maintaining circuit for the coil s at contacts 89, 90 closes at contact 88 a circuit for a solenoid 92 which alters the setting of the governor C so that the generator can take its share of the load, and closes at contact 126 a. circuit for an electromagnet 120 which clutches the rheostat arm to its driving wheel thereby rendering the voltage regulator operative. Overload on the generator causes opening of the relays 96, 97 and thereby deenergization of solenoid s, and of the electromagnet 120 whereupon the rheostat arm is returned to its initial position by a spring. The governor C is driven by a synchronous motor M supplied from the generator G, and contains contacts in the circuit of the solenoid 92 so that the setting contacts of the governor cannot be increased if the motor M has failed.
Patent GB-989394-A (GB)
Title: Improvements in or relating to transistor oscillators
Inventor: KITCHIN HARRY DONALD
IPC: H03B5/12
Filed: 1963-01-22
Abstract: 989,394. Transistor oscillator circuits; tuned coupling networks. MARCONI CO. Ltd. Nov. 5, 1963 [Jan. 22, 1963], No. 2658/63. Headings H3T and H3U. [Also in Division H1] In a transistor oscillator of the type comprising a regenerative feedback transformer having a tuned tertiary winding 2, direct coupling between the primary and secondary windings is cancelled by an additional winding. This may be connected to the primary winding but, as shown, is connected in series with the secondary in the reverse sense so that the net direct-coupling between primary and secondary circuits is zero or in negative sense. Suitable constructional arrangements of the transformer using air or tubular ferromagnetic cores are illustrated (Figs. 4 and 5, not shown).
Patent GB-799728-A (GB)
Title: Snap action device
Inventor: FLIGHT THEODORE NICHOLAS
IPC: G05D23/275
Filed: 1957-01-24
Abstract: 799,728. Snap-action switches. RHEOSTATIC CO., Ltd. Jan. 24, 1957, No. 2661/57. Addition to 774,219. Class 38 (5). The snap-action device of the parent Specification is supported at 4 along one uncorrugated side, the opposite uncorrugated side carrying a contact 5 at one corner or an extension of one corner, whilst the actuating force is applied at a point 7 substantially half-way along the unsupported uncorrugated side.
Patent GB-775708-A (GB)
Title: Grinding wheel
IPC: B24D5/12
Filed: 1955-01-31
Abstract: 775,708. Grinding wheels. NORTON GRINDING WHEEL CO.,.Ltd. Jan. 31, 1955 [Feb. 1, 1954], No. 2798/55. Class 60 A grinding wheel G adapted to cut slots in concrete or the like has a cylindrical periphery F3 and parallel side faces F1. F2 and comprises parallel coaxial side face wire mesh discs 13, 14, abrasive grains 12 uniformly distributed throughout the volume defined by the cylindrical grinding periphery and the planes of the discs, the abrasive grains being of grit size as compared with the area of the meshes in the side face members so that one grain only or a small number thereof protrude laterally through each mesh, and a cured resinous bond 11 enveloping and bonding together the uniformly distributed grains including the protruding grains and the wire mesh discs. The wire mesh discs may be of steel. stainless-steel, phosphor-bronze, bronze or hard brass and the cross-section of the wire is preferably less than the average cross-section of the abrasive grains which may be of silicon carbide with a grit size-'of 16. If the wire mesh is of number 8 size two to four abrasive grains will project through each opening in the mesh. If only one grain is required to project through each opening the abrasive grit size may be 13 and the wire mesh size 10. An internal combustion engine may be used to rotate the wheel at 3,000 r.p.m. and to traverse it at a speed of 8 to 9 feet per minute, the wheel having a diameter of 12 inches and a.thickness of a quarter of an inch. The bond 11 may be phenolformaldehyde or natural or synthetic rubber. This latter operation takes place at 170‹C. and a pressure of 100 tons and is followed by curing for 18 hours in an oven at 175‹C.
Patent GB-158555-A (GB)
Title: Combined shaving brush and rubbing device
IPC: A46B17/08
Filed: 1921-01-21
Abstract: 158,555. Bowman, A. A. Jan. 22, 1920, [Convention date]. Void [Published under Sect. 91 of the Act]. Brushes combined w i t h lathering devices; india - rubber brushes; brush sheaths; drip from brushes, preventing. - A combined shaving - brush and lathering - device comprises a brush D and holder C telescopically mounted in a hollow handle A having an upper circular flange a, around which is secured a rubber pad B provided with a number of c o n - centric series of projections b on its upper surface. The holder is screw-threaded at its lower end to receive a ring E. Inward movement of the brush is limited by a shoulder c<1> on the holder engaging with an annular ledge A' on the handle.
Patent GB-323941-A (GB)
Title: Improvements in the rotor and guide blades for steam and gas turbines
IPC: F01D5/14
Filed: 1929-01-28
Abstract: 323,941. Leistritz, P., and Burghauser, F. Jan. 28, 1929. Drawings to Specification. Blades.-A turbine blade surface is generated by a straight line which is moved along terminal guide curves and keeps parallel with a plane normal to the rotor axis. A blade surface may be formed of two or more sections generated by different straight lines. The outlet edge may be radial or the generating line may be radial at an intermediate position.
Patent GB-644104-A (GB)
Title: Improvements in and relating to hoists
IPC: B66B9/187
Filed: 1948-02-02
Abstract: 644,104. Jib cranes. HARPER, E. A. Feb. 2, 1948, No. 2947. [Class 78 (iv)] A portable hoist, particularly for mounting on scaffolding, comprises a tubular mast having an aperture adjacent its base in which is mounted a pulley over which a hoisting rope is led from a winch or the like to be passed along the inside of the mast to a jib having at one end a spigot engaging in the upper end of the mast, and at its other end having a pulley over which the rope is taken, said jib also being provided adjacent to the mast with a member extending parallel to the mast and furnished at its lower end with means providing a roller bearing against the adjacent portion of the mast. The jib 11, Fig. 1, mounted on a mast 1 by a spigot 12 engaging in a bush 13 in the end of the mast, is formed with a member 15 having a clamp comprising portions 17, 17a, Figs. 1, 3, carrying rollers 20 engaging the mast and being secured together by bolts 19. Rotation of the clamp about the mast is prevented by means of a locking screw 21. A thrust bearing 14 is provided between the jib and the mast. The mast may form an integral part of a scaffolding.
Patent GB-667878-A (GB)
Title: Machine for tensioning the spokes of wire spoked wheels
IPC: B60B31/02
Filed: 1950-02-06
Abstract: 667,878. Screwing-up nuts &c. CANADA CYCLE & MOTOR CO., Ltd. Feb. 6, 1950 [Nov. 4, 1949], No. 2960/50. Class 83 (iii). A machine for tensioning the spokes of wirespoked wheels comprises a plurality of movable tensioning units D, one for each spoke, each having a rotary tensioning element 29, Fig. 3, engageable with its spoke inwardly of the wheel rim, means for simultaneously moving the units outwardly towards the rim to engage the elements 29 with the spoke nipples, and means for rotating the elements simultaneously to rotate the nipples and thereby tension the spokes. Each tensioning unit comprises a head 26 having a slot 30 therein adapted to receive a spoke, the element 29, which is in the form of a pinion, also having a slot 31 therein adapted to register with the slot 30 when the wheel is placed in the machine, the pinion being returned to the same position after tensioning of the spokes so that the latter disengage from the pinions as the wheel is removed from the machine. The wheel is clamped between a base B and a movable clamping-unit C, the base having a number of circumferentially-spaced radially slidable blocks 12 provided with outer bevelled surfaces 15a which are adapted to be engaged by the bevelled inner surface 16 of the unit C, when the latter is moved downwardly by means of a piston-rod 32, associated with a fluidpressure cylinder, to move the blocks inwardly, against the action of springs, to engage the wheel rim. The unit C is provided with a spring-pressed ring 37 adapted to engage the upper edge of the wheel rim. The wheel spindle is centred between sockets 17, 19 on the base and clamping unit respectively. The units D each comprise a fluid-pressure cylinder 22 in which moves a piston-rod 23 provided with a rack 24 engaging the pinion 29. The units D are pivoted on brackets secured to the base of the machine and are swung outwardly towards the wheel rim, to engage the spoke nipples with the sides of the slots 31, by means of a pistonrod 40, associated with a fluid-pressure cylinder F, which carries an element 41 which is connected to the units D by means of two sets of telescopic toggle links 43, 43a. The fluidpressure cylinders are controlled by means of solenoid-operated valves, Fig. 7 (not shown), forming parts of an electric circuit, the sequence of operations being controlled by the engagement of the piston-rods with micro-switches or the like.
Patent GB-409855-A (GB)
Title: Apparatus for separating moisture from and drying steam or other vapours or gases, applicable to the heating of boiler feed water and other liquids
IPC: F22B37/28
Filed: 1933-01-31
Abstract: 409,855. Steam separators; heating feedwater and other liquids. THOMAS T. G., 63, Pencisely Road, Cardiff. Jan. 31, 1933, No. 2965. [Classes 64 (i) and 123 (iii).], In a steam separator or water heater of the kind described in Specification 375,811, the steam or water is directed in a helical course through a chamber b by circular baffles a mounted eccentrically on a central support c. The cross section of the support and the eccentric apertures in the baffles are of triangular, square or polygonal form, and the baffles are so arranged that their edges touch the inside of the chamber at points on a helical path.
Patent GB-524362-A (GB)
Title: Improvements in the case hardening of ferrous metals or ferrous alloys
IPC: C23C8/22
Filed: 1939-01-28
Abstract: 524,362. Case-hardening. SHELL MARKETING CO., Ltd., and RIGBY, R. Jan. 28, 1939, No. 2990. [Class 72] Articles of ferrous metal or ferrous alloys are case-hardened by heating them in a chamber to 1000‹-1400‹C. in an atmosphere composed of a mixture of 35-45 per cent. of propane, propylene or a mixture thereof, and the remainder air. Before quenching, the treated article may be soaked at 1000‹-1150‹C. in a non-oxidizing atmosphere, e.g., one produced by the combustion with an insufficient supply of air to combust completely hydrocarbons, town gas, coke-oven gas or ammonia. The case-hardening chamber may be provided with a perforated hearth through which the gas may be introduced with or without a fan and the hearth or other supporting member for the articles may be given a continuous or intermittent oscillating and/or reciprocating movement or may be vibrated or tapped.
Patent GB-1476932-A (GB)
Title: Manufacture of filter-tipped cigarettes
IPC: A24C5/52
Filed: 1974-05-30
Abstract: 1476932 Making filter-tip cigarettes MOLINS Ltd 30 May 1974 [30 May 1973] 3053/77 Divided out of 1476931 Heading A2C A cigarette-making machine comprises means for forming a stream of endwisemoving spaced tobacco sections 14, a conveyor 16 for feeding a continuous wrapper web 27, means for feeding the spaced tobacco sections from the endless band onto a continuous wrapper web 27 on the conveyor, means for inserting filter portions 24 in the gaps between the tobacco sections 14, the endless band having a lower run which extends along and is spaced from the conveyor so that they converge in the direction of travel causing slight compression of tobacco sections and filter portions, and means for wrapping them after compression. Fixed side members 46, 48 supported on base 49 and fixed backing member 30 cause appropriate shaping and compression of tobacco sections 14 as they move closer towards the bottom of wrapper web 26.