baber/WOPTO huggingface dataset:
Patent GB-957832-A (GB)
Title: Controlled pulse generator
IPC: H04J1/06
Filed: 1963-01-25
Abstract: 957,832. Pulse generating circuits; harmonic generators. STANDARD TELEPHONES & CABLES Ltd. Jan. 25, 1963 [Jan. 30, 1962], No. 3251/63. Heading H3T. In a pulse generator input pulses cause a transistor or other switch T1 to be cut-off to cause a circuit LC to ring. The first half cycles cuts off a normally conducting transistor or other switch T2 to produce an output pulse from which desired harmonics may be filtered. The resistances associated with the circuit clamp the oscillation so that only one pulse is produced and the capacitor C1 provides a decoupling time constant comparable to the time during which T1 is blocked. The input pulses for T1 may be derived by half wave rectification from a sine wave source (Fig. 2, not shown). Specification 502,086 is referred to.
Patent GB-524514-A (GB)
Title: Improvements in automatic controls for grabs, buckets and the like
IPC: B66C3/08
Filed: 1939-01-31
Abstract: 524,514. Grabs. SOC. FRANCAISE DECONSTRUCTION DE BENNES AUTOMATIQUES. Jan. 31, 1939, Ko. 3276. Convention date, Sept. 10, 1938. [Class 78 (iv)] Comprises automatic reversing - mechanism for the winches controlling single-chain grabs, and cut-out mechanism acting on overload. The suspension ring 5 is carried by a trolley 2 running in the inclined track 1, so that further hauling in of the chain 8, after the grab has engaged the ring, propels the trolley up the track. This action causes a pivoted bar 11 on the ring to raise the lever 12 against the action of the counterweight 13, thus slackening cord 17 and allowing counterweight 22 to swing bell-crank 20 into dotted-line position. This movement contacts a stop 28 on a second lever 24 fixed on the shaft 21 and swings it against the action of weight 25. The consequential rotation of shaft 21 reverses the motor. In addition, the cord 27 is slackened. The reversed motor then drives winch 9 to pay out the rope 8, and first allows the carriage to run back down the track until it contacts the stop 34. At this stage the rope 8 becomes slack and allows the grab to open. The counterweight 32 then causes the rope-contacting pulley 33 to move to the dotted-line position, thus again operating lever 24 through the cord 27 to again reverse the motor. The carriage 2 with the opened grab is then again drawn up the track 1 until the lever 12 once more reverses.the motor. The carriage then runs back to the stop 34 and the opened grab is lowered on to the material. The cycle of operations then re-commences. Should the reversing-gear fail to act, the trolley unduly compresses a spring 35 and causes a rod 36 to contact a stop 39 and so actuate a cut-out switch for the motor. Specification 465,981 is referred to.
Patent GB-229288-A (GB)
IPC: F23D14/42
Filed: 1925-02-05
Abstract: 229,288. Drager, A. B. Feb. 13, 1924, [Convention date]. Blowpipe burners. - In a cutting burner with two mouthpieces h, i, Fig. 3, for the central oxygen cutting jet and an annular preheating flame, the concentric packing surfaces f, g, Figs. 1 and 3, for the mouth pieces are annular zones of one and the same cone k. Both packing and contact surfaces i, g can be accurately produced simultaneously with a pointed drill having straight cutting edges, and at any time tested for accuracy. In the construction described the mouthpieces screw into the bores d, e, communicating with the inlets b, c.
Patent GB-395776-A (GB)
Title: Improvements in fasteners for bonnets of automobiles and for analogous purposes
IPC: E05B65/19
Filed: 1932-02-04
Abstract: 395,776. Hook fastenings; bolts. HARLEY, C. E., 121, Marlborough Road, Bowes Park, and RIPAULTS, Ltd., 1, King's Road, St. Pancras, both in London. Feb. 4, 1932, No. 3348. [Classes 44 and 89 (i).] In a motor-car bonnet or like fastening which consists of a slidable hook 3 having a screwed shank 4 to co-operate with a rotatable handle 2, a spring-pressed washer 6 is mounted on the hook shank and has projections which engage with notches in the end of the handle shank 1 to hold the latter against accidental movement. The hook shank 4 is flattened at 7 to prevent rotation of the washer 6. The invention is also shown applied to the form of fastening described in Specification 396,016. Specification 388,155 also is referred to.
Patent GB-1438063-A (GB)
Title: Drawing apparatus
IPC: B43L13/08
Filed: 1974-01-24
Abstract: 1438063 Automatic control MUTOH INDUSTRY Ltd 24 Jan 1974 [31 Jan 1973] 03402/74 Heading G3N [Also in Division G1] A drawing apparatus comprises a head adapted to be placed on the surface of a drawing board and supported only by the drawing board, and an automatic control means for aligning a rotary member carrying a ruler. As shown, Fig. 1, a draughting head 1 is supported on a surface 8, of magnetizable material, by a base 4 containing a permanent, or electromagnet. The head is positioned by a handle 5 and a pair of rulers 2, 3 are mounted on a plate 7 attached to a rotary member 6, which is automatically aligned with a drawing reference line on operation of a switch 9. The base 4, Fig. 3, supports the member 6 which contains a battery 25 in a chamber 24 which energizes a motor 31, rotating the member 6 about a shaft 10 mounted on the base, through a worm-and-gears 39, 17. Facilities are provided for setting the rulers relative to the reference line and the indicated setting can be seen through a window in the handle 5, Fig. 1. The setting is locked by a pin 68. The angular position is determined by a transducer the output of which through brushes 63, is transmitted to a transistorised control system for the motor 31. The specification sets out a plurality of alternative position sensing transducers comprising a) pendular devices b) fluid level devices employing liquids in U-tubes c) magnetic devices and d) strain-gauges all of which provide electric signals, directly or from bridge networks, to digital or analogue control systems effecting directional control of the motor 31 to align the head with the drawing reference. The control system can be mounted in the head or connected thereto by flexible leads.
Patent GB-700167-A (GB)
Title: Improvements in television or like receiving aerials
Inventor: JEFFERY GLYNN BENNETT
IPC: H01Q19/30
Filed: 1950-02-10
Abstract: 700,167. Aerials. ELECTRIC & MUSICAL INDUSTRIES, Ltd. Feb. 12, 1951 [Feb. 10, 1950], No. 3426/50. Class 40 (7) An aerial comprising a primary element and a reflector and/or director elements, as shown in Fig. I or Fig. 2, is supported upon a mast attached to the lower end of one of the aerial elements. The aerial is insulated from the metal mast 9 or 22, by means of an insulating member 8 or 21, into which the aerial element and the mast are screwed. The mast may be connected to the primary element or to a reflector or director. When the mast and aerial elements comprise hollow metal tubing, the aerial feeder may be disposed within the mast and appropriate ones of the elements, suitable apertures therefor being formed in the insulating connecting members.
Patent GB-342895-A (GB)
Title: Improvements relating to the application of bases or the like to electrical devices such as radio tubes, incandescent electric lamps or the like
IPC: H01J9/30
Filed: 1930-02-03
Abstract: 342,895. Electric incandescent lamps. WESTINGHOUSE LAMP CO., Bloomfield, New Jersey, U.S.A.-(Assignees of Brindle, R. ; 10, Bradley Terrace, U.S.A.) Feb. 3, 1930, No. 3578. Convention date, Feb. 1, 1929. [Class 39 (ii).] Caps ; leading-in wires.-In apparatus for threading the leading-in wires of incandescent lamps &c. through a corresponding number of apertured contacts which have a definite spaced relationship in a cap or base member, the wires are straightened and adjusted to spaced parallel positions in a common plane, and then readjusted to positions corresponding to the positions of the spaced contact apertures, after which a relative movement is given to the bulb and base member to insert the wires through the contacts. The bulb 14, Fig. 1, is supported between the resilient faces 33<1>, 34<11> of two spring-pressed clamping-jaws 271, 28<11>, and the leading-in wires 20 .. 23, which extend irregularly from the pinch 24 are engaged between two members 26, 27 provided at their lower ends with offset portions 32, 33 formed with co-operating notches 28 .. 31, Fig. 5, and 281 .. 31<1>, between which the leading-in wires are located, so that when the members 26, 27 are moved upwardly, the wires are combed or straightened out into a common plane. Central recesses are provided in the portions 32, 33 to accommodate the exhausting tube 16. The wires are subsequently engaged by co-operating inwardly-movable spreading-members 361, 371, Figs. 6 and 7, which move them into positions corresponding to tubular contacts in a lamp cap. The spreader 36<1> comprises a compound plate 401, 41<1>, spaced from and parallel to a plate 41, the space between them being adapted to receive a portion 44 of a co-operating compound plate 43, 44 on the spreader 371, the plates being formed with interengaging projections and recesses which receive the wires and set them into positions corresponding to those of the apertures of the contact pins in the base. During the setting of the wires the bulb is held in a definite position, so that by arranging the base coaxial with the bulb and imparting to the members a relative axial movement the wires are threaded through the contact apertures. The base is secured to the bulb by an inner ring of cement which is subjected to baking, prior to which the ends of the leading-in wires projecting from the base are preferably gripped between clamping-jaws and held while the base is pressed against the bulb, thereby ensuring that the leads are straight and not touching one another. The jaws also serve as contact members and enable a testing current to be passed through the electrodes before the bulb is completed. The clamping-jaws are also provided with co-operative projections and recesses which form a kink in the outer ends of the leading-in wires and prevent the base from becoming separated from the bulb if handled prior to the baking of the cement.
Patent GB-1058655-A (GB)
Title: Improvements in mosaic panelling
Inventor: PEYNTIENS PATRICK
IPC: B44F1/06
Filed: 1965-01-27
Abstract: 1,058,655. Moulds for casting concrete. P. REYNTIENS, and D. KIRBY. July 20, 1965 [Jan. 27, 1965], No. 3602/65. Heading B5A. [Also in Divisions B6 and E1] A translucent mosaic panel comprises a substantially two-dimensioned [flat] reinforced, loadbearing, unitary framework of intersecting reinforced concrete beams and, on one surface of the framework, a mosaic of pieces of stained glass or other translucent material set in a matrix layer of epoxy resin which adheres to the concrete framework. The layer of epoxy resin may be reinforced with glass fibre or other material, e.g. glass fibre rovings that are connected to the reinforcement of the concrete framework by threading rings of glass fibre on to the reinforcement such that they project from the surface of the concrete framework into the adjacent layer of epoxy resin. The glass fibre rovings can then be reeved through the projecting portions of the rings before the epoxy resin layer is cast. The epoxy resin may contain fine and coarse sand, quartz flour, and a block colouring material. In making the panel, a number of formwork islands are placed in the bottom of a mould, metal reinforcement is positioned within the mould between the islands, concrete is poured into the mould up to the height of the islands, the concrete is allowed to set to form a unitary, reinforced, load bearing concrete framework, pieces of stained glass or other translucent material are placed on the islands to form a mosaic, a layer of epoxy resin is cast around the mosaic and on top of the framework and any exposed parts of the upper surfaces of the islands, the epoxy resin is allowed to set and the composite panel is separated from the mould and formwork islands. The exposed surface of the epoxy resin layer may be covered with slate dust while the resin is still tacky but in the mould. The formwork islands may be of a foamed plastics material such as foamed polystyrene. The mould may be a vibratory mould having a carrier which overlies the mould and which is provided with clamps to hold the formwork islands against the bottom of the mould and depending supports for supporting reinforcement for the concrete framework out of contact with the bottom of the mould, the carrier being removable from the mould. The mould may be pivotally connected about a horizontal axis along one edge to a fixed support, the pivotal connection being releasable. The bottom of the mould may be a false metal floor heated from beneath by hot water. A number of the panels may be mounted alongside one another to form a large stained glass window in, say, the wall of a church or public building.
Patent GB-1360383-A (GB)
Title: Protective device for electron tubes
IPC: H03F1/54
Filed: 1973-01-24
Abstract: 1360383 Protective circuit, radio transmitting apparatus TESLA NARODNI PODNIK 24 Jan 1973 [28 Jan 1972] 3646/73 Headings H3W and H4L The output valves of an anode modulated transmitter are protected from flash-over by detecting the excess current therethrough and causing an electronic switch to apply a voltage to the modulator stages input to produce a 100% modulation trough. The switch may either disconnect completely the preamplifier when applying said voltage (Fig. 2, not shown) or apply it to the input while the preamplifier is connected (Fig. 3, not shown). If the modulator has push-pull inputs, a switch is provided in each input.
Patent GB-1516061-A (GB)
Title: Waveform storage and display
IPC: G01R13/20
Filed: 1977-01-28
Abstract: 1516061 Cathode-ray tube circuits HONEYWELL INC 28 Jan 1977 [30 Jan 1976] 03678/77 Heading H4T To display, e.g. on a CRT, a waveform sampled at regular intervals, preferably by drawing vectors from the last displayed point to the next, but possibly by brightening points in each vector where cut by the scan lines of a vertical raster, in each sampling period the presence of a new maximum or new minimum or both is recorded, and if only one is found that one is adopted for the next display point but if both are found the extreme value corresponding to the direction of first movement at the beginning of the period is adopted and the extreme value of the other type out of the current and following periods is held over for display at the end of the next period. Thus in displaying by drawing vectors in Fig. IE between the sampled points approximating the analogue waveform of Fig. 1A, the final value reached at the end of each segment is displayed in periods P1-P5; in period P6 the minimum value occurring during the segment is adopted, and in period P8 the rise first occurring causes the maximum to be adopted but the minimum is held over to set the displayed value at the end of the next period P9; if a deeper minimum had occurred before the end of P9 it would have been adopted in preference. If the signal is of higher frequency than can be displayed, its maximum and minimum levels will still be shown. The analogue signal is converted (Fig. 2 not shown) to digital many times in each sampling period; the digital value, e.g. of 10 bits, being stored in two registers in which the stored value is continually being compared with the new value; one adopts the new value if higher and so stores the maximum, the other adopts the new value if lower and stores the minimum. On the occurence of a value higher than that already stored in the maximum register, indicating a rising waveform, a flip-flop trigger is set, and similarly for the minimum register. At the end of the sampling period if only one trigger is set, the appropriate maximum or minimum value is transferred to a memory holding e.g. 512 numbers of 10 bits, circulating e.g. 50 times per second, and the registers are cleared. However if both triggers are set, that which was set first is noted and determines which register is copied into the memory, while the other register is left uncleared. Successive numbers from the circulating memory are loaded into a buffer and from there are converted 5 to analogue form representing the ordinate of the next display point; a counter 53 records the sample period number and its output converted 52 to analogue represents the abscissa. The coordinates are fed to the deflector circuits of the CRT 33, preferably via delay lines 30, 36, from which outputs of successive stages are tapped off resistively and added to produce sawtooth waves approximating the components of the vector between the last point and the next. At the same time the circulating memory is updated from the buffer.
Patent GB-507025-A (GB)
Title: Improvements in and relating to universal joints
IPC: F16C11/06
Filed: 1938-02-08
Abstract: 507,025. Universal joints. THOMPSON PRODUCTS, Inc. Feb. 8, 1938, No. 3919. Convention date, Feb. 8, 1937. [Class 65 (ii)] A universal joint comprises a cup-shaped element 11 to which is bolted a joint housing member 15 having a recess 19 and a segmental spherical bearing wall 20 on which are seated two hollow hemispherical bearing caps 27, 28 enclosing the head 40 of a stud member 35. The stud member 35 has a cylindrical shank portion 39 on which is mounted a ring member 41. Spring washers 45, 46 acting between the base 44 of the stud head 40 and the rim 43 of the ring member 41 tend to keep the caps 27, 28 apart so that the stud 35 may rotate freely on its own axis. The caps 27, 28 are cut away at 32a to form an opening which cooperates with the shank 39 so that the cap members move with the stud during tilting movements, and at 32 to prevent the edges binding on the stud head 40 or bearing wall 20. Tho stud is held in the housing 15 by an annular member 24 which is held in place by peening over the rim 25. The bolt 17 and housing 15 are bored at 21 whereby the bearing surfaces may be readily lubricated.
Patent GB-784236-A (GB)
Title: An instrument for the measurement of the speed of yarn and the like
Inventor: BRIGGS PHILIP HAROLD
IPC: G01P1/04
Filed: 1955-02-10
Abstract: 784,236. Measuring yarn speeds. BRITISH RAYON RESEARCH ASSOCIATION, and DUKES & BRIGGS ENGINEERING CO., Ltd. Feb. 8, 1956 [Feb. 10, 1955], No. 3942/55. Class 106 (3). The speed of running yarns is measured stroboscopically by an instrument having a hand member 12, Fig. 5, a lamp 18, Fig. 3, mounted therein, and an aperture 26 in the casing of the hand member covered by a translucent plate or by a plate 25 with a plurality of holes closely spaced around a pitch circle of diameter less than that of the aperture, the yarn being led over a pulley 20 freely mounted for rotation on the plate and having a slot 24 aligned with the translucent plate surface or the holes in that surface and one or more pulleys 21 freely mounted for rotation, the pulleys being grooved in line to be driven by the travelling yarn without slip, together with a portable box 11 carrying an electronic circuit controlling the lamp with e.g. potentiometer means 13 for adjusting its frequency to a known value over a wide range (10-120 cycles per second) the box 11 and the hand-member 15 being connected by a cable 16. The potentiometer scale 14 may be calibrated in cycles/sec., revs/min. or ft/min. The opposite side of the casing may be apertured and provided with a lens 29 to enable the hand member to be used as an ordinary stroboscope.
Patent GB-764940-A (GB)
Title: Safety hook
IPC: B66C1/36
Filed: 1955-02-10
Abstract: 764,940. Hooks. BLATCHFORD, W. C. (Coffing Hoist Co.). Feb. 10, 1955, No. 3997/55. Class 89 (2). A hook comprises. a shank 10, for mounting in a swivel, and a body 12 having its opening closed by a lever 15 pivoted at 14 and provided with shoulders 17 engageable by the arms 23 of a latch 18 pivoted at 19 and urged by spring 20 to contact the edges of the lever. The lever and latch straddle the body, and when the lever is raised, after releasing the latch manually, it is held in open position by the latch engaging the cam surfaces 24.
Patent GB-1323654-A (GB)
Title: Saturable core square wave oscillator
IPC: H02M7/5383
Filed: 1972-01-28
Abstract: 1323654 Transistor oscillators TEXACO DEVELOPMENT CORP 28 Jan 1972 [1 March 1971] 3997/72 Heading H3T An invertor including a pair of transistors 27, 28, a saturable core transformer 26 with a regenerative feedback winding 31, and an output transformer 21, includes additional windings 37, 40 to absorb leakage inductance effects in the output transformer. The windings 37, 40 are connected in series-aiding relationship so that spikes (11, Fig. 2, not shown) on the output waveform are substantially removed, in order to protect the transistors. The switching times of the transistors are also slowed by the feedback through transformer 26 to T27, T28 bases. Capacitor 41 is selected to prevent oscillation.
Patent GB-122950-A (GB)
Title: Improvements in the Method of and Means for Casting Centrepieces for Hand Grenades and other Articles.
Inventor: GIBBONS ANTHONY BRIDGEMAN
IPC: B22D21/00
Filed: 1918-03-07
Abstract: 122,950. Gibbons, A. B. March 7, 1918. Casting - machines. -Porosity is prevented and a smooth accurate surface obtained when casting hand-grenade centrepieces or similar simple castings in aluminium, by using machined metal moulds B, B on a revolving table A and applying pressure through a plunger C, when the metal has partially solidified. The plunger C is operated at the right time by an eccentric G, the table A being meanwhile held stationary by one of the spring-controlled rods F engaging a stop f which which is afterwards retracted by a cam G<1>. Castings, extracting.-During the further rotation of the table A, a sliding ejector rod L is pushed upwards by a fixed cam M to eject the casting.
Patent GB-187568-A (GB)
Title: Improvements in and relating to internal combustion engines
IPC: F02B9/10
Filed: 1922-02-11
Abstract: 187,568. Matti, M. R. Oct. 21, 1921, [Convention date]. Void [Published under Sect. 91 of the Act]. Cylinders receiving liquid fuel.-Fuel is injected into a substantially spherical and partly waterjacketted combustion chamber 2, the passage or passages 3 to which are arranged tangentially so that the incoming air is caused to whirl within the chamber. The fuel from the nozzle 5 impinges against a spreader 6, and the passages 3 are arranged above the air inlet 7 to ensure complete scavenging of the spherical chamber. The positions of the nozzle and the spreader may be reversed, or the spreader may be omitted entirely.
Patent GB-212377-A (GB)
Title: Improvements in wall plugs for electrical services
IPC: H01R13/68
Filed: 1923-02-12
Abstract: 212,377. Wilding, E. S., and M. K. Electric, Ltd. Feb. 12, 1923. Plug connectors; fusible cutouts.-A wall plug comprises in addition to the usual elements 1, 3 a member 5 with plugs 7 to engage the sockets of the wall member and sockets 6 to receive the pins 4 of the plug member, with a fuse or fuses 11 connecting a plug and a socket. The plugs 7, 4 may be of the same or different gauges.