baber/WOPTO huggingface dataset:
Patent GB-1388717-A (GB)
Title: Analogue-to-digital conversion apparatus
IPC: G01C19/38
Filed: 1972-05-04
Abstract: 1388717 Indicating heading; analogue to digital conversion INTERNATIONAL STANDARD ELECTRIC CORP 4 May 1972 [7 May 1971] 20835/72 Headings G4D D7X D6Y D1D9G D6C1 and D6C2 Three relatively displaced analogue or overlapping digital signals from a heading gyro 1 are converted into a digital signal by amplifying and limiting the signals and forming three signals representing the logical products of pairs of the limited signals, deriving from these product signals a pulse on a "forward" or "backward" line each time the heading angle increases or decreases by 1/6 degree, converting the 1/6 degree pulses to 1/10 degree pulses and adding or subtracting as appropriate the 1/10 degree pulses from the contents of a register 10 connected to a decimal heading display 14. Each of the analogue or overlapping digital signals, Figs. 1a or 1b (not shown), has a zero crossing each time the heading changes by ¢ degree. The limited signals are combined in NAND gates and transients are removed by bi-stables (21, 22), Fig. 3 (not shown). The resulting signals, only one of which is up at any time are sampled at 3 under the control of a clock 13 and passed to a logic circuit 4, details in Fig. 4 (not shown), which emits a 1/6 degree forward or backward pulse as appropriate each time the up signal changes line. A reversible three stage counter 7 emitting 1 or 2 pulses for each input pulse converts the 1/6 degree pulses to 1/10 degree pulses, which are fed to register 10. This has a forwards only counter, subtraction being achieved by a burst generator 9 which steps the counter through a complete cycle less one step. During read-out, in which the burst generator steps the counter through a complete cycle, any 1/10 degree pulses are temporarily held in a delay 12 and passed to the register after the readout cycle. A manual input 6 allows initial adjustment.
Patent GB-800838-A (GB)
Title: Food and beverage mixing device
IPC: A47J43/046
Filed: 1956-07-05
Abstract: 800,838. Batch mixing machines. SUNBEAM CORPORATION. July 5, 1956 [Nov. 9, 1955], No. 20896/56. Class 86 [Also in Group VI] A food and beverage, mixing and disintegrating, device adapted to be removably fastened to and driven by a domestic food mixing machine comprises a vertically extending driving spindle set parallel to, and to one side of, a cutter spindle carrying disintegrating means and journalled through the bottom of a mixing vessel, the spindle being interconnected by a drive means disposed generally below the mixing vessel. The mixing vessel 20 formed with inwardly projecting ribs 86 has journalled in the bottom thereof a spindle 21 carrying cutters 22, 23, the spindle being adapted to be driven through a step-up gear mechanism 24 connected to a drive spindle 26 with a notch 48. The device stands on projections 29f, 2ge in depressions 15, 16 in the base 14 of a mixer 11 and the vessel 20 is retained in position on a platform 37 by resilient guide bumpers 71. The cutter spindle 21 has at its lower end a driving member 68 which urges a co-operating clutch member within the space defined by the bottom 72 of the vessel and the depression 37b defined in the platform 37 associated with gear case 25. The mixer 11, which may be similar to that described in Specification 687,323 has a motor and a gear unit 12 pivotally mounted on a support 13 and is provided with sockets 17, 18 to receive beaters (not shown). The socket 18 contains a pin portion which can engage the notch 48 in the top of the spindle 26 when the device is attached to the mixer.
Patent GB-1409677-A (GB)
Title: Filling element for multichamber counterpressure filling machine
IPC: B67C3/28
Filed: 1973-05-02
Abstract: 1409677 Counterpressure filling element SEITZ-WERKE GmbH 2 May 1973 [12 July 1972] 20897/73 Heading B8T A filling element for a counterpressure container filling machine is characterized by its valving arrangement which provides for fast pressurizing of the container followed by filling and pressure relief in two stages, the first slow and the second fast. With a valve 30 closed and valves 35 and 37 open, the gas from the pressure gas chamber 15 passes down a pipe 34 and through an annular gap 23 into the container. Gas also passes through pipes 36, 29, a ball valve 26 into a duct 24 in the side of a filling tube 21 and enters the container at the lower end and through the side orifice 25. When pressure balance is reached valves 35 and 37 are closed and a spring 19 causes a valve 18 to open and allow liquid to flow under gravity from a chamber 12 into the container. The displaced gas passes through the duct 24 the ball valve 26, pipes 29, 32, and a narrow throttle 33 into the return counterpressure chamber 14 which is open to atmosphere. When the liquid level covers the lower end of the filling pipe 21, the valve 30 is opened and allows faster gas release (via a wide throttle 31) and hence faster filling. The ball valve 26 is closed by the liquid when it reaches that level and the resulting pressure unbalance causes the valve 18 to close against the spring pressure. The valve 37 is now opened to allow pressure relief at a slow rate via the throttle 33 followed by a fast relief by the addition of the throttle 31 when the valve 30 is opened.
Patent GB-602012-A (GB)
Title: Improvements relating to letter boxes
IPC: A47G29/126
Filed: 1945-08-17
Abstract: 602,012. Letter-boxes. CHILD, H. G., and SAYER, E. C. Aug. 17, 1945, No. 21023. [Class 18] The flap of a letter plate 4 of a letter-box is hinged at the lower edge 6 of the slot and has a depending counter weight 9, which may act as a door knocker, to retain it in the closed position against inwardly directed flanges 2, 3 of the surround 1. For use as a door-knocker the courrterweight coacts with a striker plate 11 separately attached to the door or formed as part of the surround. Alternatively the counterweight may hang clear of the door, the knocker action taking-place between the flaps 4 and the flanges 2, 3. The lower edge of the letter plate may extend over the lower edge of the slot in the surround to serve as a weather guard.
Patent GB-211013-A (GB)
Abstract: 211,013. Western Electric Co., Ltd., (Deakin, G., and Polinkowsky, L.). March 8, 1923. Automatic exchange systems.-In a preferred call system in which, if all the lines of a private branch exchange group are engaged in local calls, a toll connector seizes the last line of the group and breaks down the local connection, means are provided whereby the penultimate line then tests as the last line, with a similar action upon seizure of this latter line. The Figure shows the test terminals of the P.B.X. lines in the banks of the toll connectors on the left, and the test terminals in the banks of the local connectors on the right. Each terminal is connected to the cut-off relay 2 and meter 3, which in the case of the last line are shunted by a resistance 4. When the last line is seized by a toll connector, a relay 1 in the test lead energizes, connecting a resistance 6 to the test lead of the penultimate line, and removing a short-circuit from a relay 9 in the test lead, which acts similarly if the corresponding line is seized by a toll connector.
Patent GB-694999-A (GB)
Title: Electrical circuit regulating device
IPC: H04B3/04
Filed: 1951-09-07
Abstract: 694,999. Automatic volume control. WESTERN ELECTRIC CO., Inc. Sept. 7, 1951 [Sept. 12, 1950], No. 21157/51. Class 40 (iv). In an arrangement for regulating the power to a load, e.g. a telephone set, a series element having a positive temperature coefficient controls in accordance with its own temperature the temperature of a shunt element having a negative temperature coefficient. The arrangement described as being applicable to telephone sets is utilized for compensating for different lengths of subscribers' loops and for changes in loop resistance and also for protection of the transmitter and receiver on short loops. The resistance elements are mounted on a mica disc 25, Fig. 1, in a glass envelope 10 and the series element comprises two filaments 21, 22 mounted one on either side of the shunt element 30 which is a thermistor. The envelope is filled with inert gas such as nitrogen and the Specification, besides indicating suitable dimensions and spacings for the resistor elements, describes with reference to graphs, Figs. 2-7 (not shown), the effects of varying the dimensions and the gas pressure. A resistor 26, e.g. 50 ohms, is connected in series with the thermistor 30 in order to maintain at all times a minimum resistance, and in the telephone circuit, Fig. 8, both the series elements 21, 22 and the shunt elements 30, 34 are protected by silicon carbide varistors 41, 42 and 43, 44 connected across them. The invention is stated to be applicable to loads consuming greater power and Specifications 540,844, [Group XXXVI], and 661,037 are referred to.
Patent GB-246399-A (GB)
Title: Improved amusement apparatus
IPC: A63G7/00
Filed: 1925-08-24
Abstract: 246,399. Maynes, H. F. Feb. 12, 1925, [Convention date]. Curtains, drawing and suspending. - Pairs of curtains 21, one of which is opaque and the other transluscent, are mounted on cables 14 - - 17 passing round drums 18, 19, one vertical edge of each curtain being secured to an upright 20 and the other to a rod or angle-iron 22 connected to the suspending cables. The rods 22 interengage, as shown in Fig. 8, so that only one curtain may be stretched at a time, while both may be collapsed together.
Patent GB-192721-A (GB)
Title: Improvements in or relating to tyres and the manufacture of the same
IPC: B60C9/16
Filed: 1921-08-10
Abstract: 192,721. Jones, E. H. Aug. 10, 1921. Jackets and covers.-In tyre-casings of the kind described in Specifications 6639/11 and 13507/12 comprising crossed oblique wire helices, short cores d of ductile, non-resilient material are inserted in the ends of the helices to enable them to be bent to correspond with the type of tyre edge desired. In a straight-edge tyre as shown in Fig. 2, the ends cf the helices a, b, enclosing the cores d, are bent around wire gauze bands f. Figs. 5 and 6 show the arrangement of the cores &c. for beaded-edge and wired-on tyres respectively. Each core may be formed as a staple to engage the ends of two adjacent helices.
Patent GB-298323-A (GB)
Title: An adjustable rule or level for builders' and like work
IPC: G01C9/24
Filed: 1927-08-12
Abstract: 298,323. Turvey, H. W. Aug. 12, 1927. Levels.-In an instrument for builders' &c. use, comprising one or more levels 4 rotatably mounted in a straight-edge 1, each level is mounted in a metal tube 6 having one end 7 flanged and abutting against one face of the straight-edge, the flange being marked with graduations 10 co-operating with an index 11. Accidental movement of the tube 6 is prevented by providing screws 8 which pass through the flange into the straight-edge. The upper face of the straight-edge is also provided with a level 3 which is made capable, of adjustment by pivoting its carrier 18, Fig. 3, at one end to a pin 20 and providing the carrier at its other end with a threaded block 21 through which passes a screw 22. For measuring small angle of inclination the straight-edge is formed with a channel in which is slidably mounted a graduated strip 13 which can be extended beyond the edge of the straight-edge and secured in any desired position by a screw 14. The strip 13 can also be used as a support when the instrument is applied to a wall &c.
Patent GB-300307-A (GB)
Title: Improvements in or relating to conduits or ducts for electric cables
IPC: H02G9/06
Filed: 1927-08-12
Abstract: 300,307. Callender's Cable & Construction Co., Ltd., and Hunter, P. V. Aug. 12, 1927. Conduits for heavy electric power cables have saddles or raised portions to support the cable clear of the floor of the conduit in normal conditions and to allow it to rest on the floor when expanded under continuous maximum load. The saddles may be formed integral with the conduit at the socket or spigot ends of the separate lengths as shown in Figs. 1 and 3 respectively ; or they may be separate pieces fitting into recesses as shown in Figs. 5 and 7, or engaging with serrations as shown in Fig. 9.
Patent GB-1378640-A (GB)
Title: Apparatus for the production of pile surfaced products
IPC: D04H11/08
Filed: 1971-11-04
Abstract: 1378640 Pile fabrics IMPERIAL CHEMICAL INDUSTRIES Ltd 4 Nov 1971 [20 Nov 1970 (2) 24 Dec 1970 (2)] 21311/74 21312/74 21313/74 and 21314/74 Divided out of 1378638 Heading D1K The disclosure is similar to that of Specification 1378638 but the claims are directed to an apparatus.
Patent GB-976755-A (GB)
Title: Improvements in or relating to centre weft stop motions in looms
IPC: D03D51/34
Filed: 1961-06-13
Abstract: 976,755. Centre weft fork motion. RUTI MACHINERY WORKS Ltd. June 13, 1961 [June 13, 1960], No. 21383/61. Heading D1E. In order that no kink shall remain in the weft where the weft fork has rested on it, the fork is moved away before the shuttle completes its pick. As shown, downward movement of a rod 17, reciprocated by a cam, raises the fork carrier 3 and, by means of a pin 5 engaging the tail 1a of the fork, tilts the fork up to clear the path of the shuttle. When the shuttle is picked, the rod 17 rises to lower the fork on to the weft 4. Continued movement of the carrier 3 about its pivot 6 swings the pivot 2 of the fork downwards and forwards, whereby the fork slides off the weft and the tail 1a passes freely under a block 10. If the weft is absent, however, the fork will have dropped at this stage and its tail 1a will encounter the block 10 to prevent further movement of the carrier 3; movement of the rod 17 is thereby stopped and a dagger, oscillated by the rod 17, is left in line with a bell crank lever which it strikes during beat-up to release a detent from a clutch operating lever, whereupon a spring disengages the clutch to stop the loom. In another construction, the fork is mounted at the top of a vertical fork carrier so as to slide horizontally off the weft; the tail of the fork is pushed by a finger operated by the rod 17 to tilt the fork; and instead of the tail co-operating with the block 10, a hook on the prongs of the fork cooperates with a hook fixed on the slay.
Patent GB-517140-A (GB)
Title: Improvements in and relating to machines for grinding the surfaces of tiles and similar articles in plate form
IPC: B24B7/16
Filed: 1938-07-19
Abstract: 517,140. Grinding tiles &c. BRITISH & INTERNATIONAL FLOORING CO., Ltd. (Goetzl, K: F.) July 19, 1938, No. 21433. [Class 60] A machine for grinding the surfaces of tiles or similar articles of plate form comprises a vertical frame 1 in which is slidable a carriage 2 having a central aperture in which is mounted a work supporting plate 5 hinged at 4 to the lower cross-bar 3 of the carriage. The tile, &c. 6 to be ground is clamped on the plate by a claw 8 and a movable claw 7 acted on by springs 9. The carriage is moved up and down by a cable anchored at its ends to loops 10, 15 on the carriage, and passing round guide rollers 11, 12, 14 and a driven roller,13. The work is operated upon by the flat face of'a narrow grinding-ring 17 carried by a shaft 18, the ring being partly surrounded by a housing 22 leading to a fan 23. The tile is adjusted relatively to the grinding-ring by movement of the frame 1 by a screw 20, and the frame has thereon an arm 24 on which the suoport' 5 may rest during placing and removal of the work. The roller 13 may be driven through mechanism 25 from the shaft 18.
Patent GB-975875-A (GB)
Title: Improvements in or relating to the processing of small articles such as circlips
Inventor: MAUDE STANLEY MORGAN
IPC: C21D1/44
Filed: 1963-05-29
Abstract: 975,875. Rotary elevators. ANDERTON SPRINGS Ltd. May 29, 1963, No. 21442/63. Addition to 895,871. Heading B8A. The method of subjecting circlips and like articles to liquid immersion by use of an elevated wheel as described in the parent Specification is modified by the use of a liquid of such a nature that the articles will adhere to the rim of the elevating wheel and by providing means to break the adhesion at the top of the articles' travel. The wheel comprises a channelsection rim 2 of perforated material to which are secured circumferential rails 3. The latter are supported by wheels 4, at least one of which is driven to rotate the wheel. The articles are fed from a source 6 via a shoot 7 into the liquid 9 in bath 8, picked up by the wheel-rim 2 to which they adhere, and subsequently detached from the rim by means 10 situated over a discharge shoot 11. The preferred form of the means 10 is a liquid spray, the sprayed liquid being discharged with the articles on shoot 11 to avoid contamination of the bath 8.
Patent GB-1250006-A (GB)
Title: Improvements in or relating to tubes and blocking means therefor
Inventor: BUNCE ANTHONY
IPC: E05D15/06
Filed: 1968-05-07
Abstract: 1,250,006. Runners for sliding doors. BECKETT, LAYCOCK & WATKINSON Ltd. 22 April, 1969 [7 May, 1968], No. 21467/68. Heading E1J. A tube comprises two blanks 16, 17 joined longitudinally and defining a bore 12, a plate 20 in the bore having tags 21 entering recesses or slots 18, 19 in the blanks to retain it axially. The blanks are joined by spot welding. In use the tube is attached to a sliding door and accommodates a tube (11) carrying a roller, the plate 20 forming an abutment for a spring (15) seated in the tube (11).
Patent GB-1536684-A (GB)
Title: Joint structure
IPC: E01C11/12
Filed: 1976-06-29
Abstract: 1536684 Expansion joints COLEBRAND Ltd 29 June 1976 [20 May 1975] 21477/75 Heading E1B An elastomeric joint covering strip is secured in position by serrated flanges adhesively bonded in grooves 4. A T-section fillet may have one arm 9 adhesively bonded to the facing face 9A of the strip.
Patent GB-416705-A (GB)
Title: Improvements in circuits for the reception of electrical signals by means of carrierwaves
IPC: H04J1/14
Filed: 1933-07-31
Abstract: 416,705. Valve amplifying circuits. GENERAL ELECTRIC CO., Ltd., Magnet House, Kingsway, London, and WESTELL, E. P. L., c/o General Electric Co., Stoke, Coventry. July 31, 1933, No. 21482. [Class 40 (v).] In a valve amplifier for both speech and impulse signals conveyed by modulations of a single carrier wave, the valve is so biassed that it operates on a substantially linear part of the characteristic for all values of the amplitude of the carrier wave. The Figure shows a carrier frequency amplifying valve 4, dry plate detector 10 and a further amplifying valve 12, which amplifies impulses to operate relay 8 and speech which is fed through a low pass filter to a line 15. The rectified carrier is preferably arranged to increase the negative bias of the valve 12 which is small in the absence of the carrier and the relay operation is preferably determined by the difference between the mean anode currents of the valves 4, 12. The valves may be biassed by resistances in the cathode leads and the resistance may have a common portion so that increase of anode current in one valve increases the bias, and thus decreases the anode current of the other valve to improve the relay operation.
Patent GB-637882-A (GB)
Title: Improvements in abrading machines
IPC: B24B13/04
Filed: 1947-08-07
Abstract: 637,882. Grinding lenses. AMERICAN OPTICAL CO. Aug. 7, 1947, No. 21558. Convention date, March 27, 1939. [Class 60] A lens-grinding machine comprises rotary spindles 4, 66, Fig. 1, for mounting the work 54 and a ring-shaped abrading tool 58, means for adjusting the relative angular relation of the tool and work according to the curve to be generated on the work and maintaining the two spindles in corresponding relative positions, and means for moving one spindle towards the other and controlling the extent of material removed from the work. The spindle 66 which, as shown, carries the tool is journalled in a head 2 pivotally mounted on the frame of the machine by a pin 3, Fig. VI, a vernier scale 88 being provided to show the extent of adjustment which is affected by a worm and toothedsector mechanism. The pin 3 is embraced by a split bearing which is clamped by a screw to hold the head in adjusted position. The spindle 4, which carries an adaptor to which the work is secured, has a splined connection with a pulley driven by an electric motor 49 and can be raised or lowered by a rack and pinion connected to a handle 177. A weight attached to the pinion spindle by means of a cord wrapped around a cam-shaped surface holds the spindle in its raised position. The spindle 66 is provided with a pulley, the position of which on the spindle can be adjusted axially by means of a nut to compensate for wear of the tool. This pulley is driven by a belt from a pulley 98 driven by a flexible shaft from the motor 49. The tool is fed with oil through a bore in the spindle 66 and is provided with a vent 216, Fig. XII, to relieve excess pressure. The tool is of bonded abrasive sweated or otherwise secured to a metal hub, and its shape is determined by the proportion of convex to concave surfaces to be ground, thus obviating localized wear. The tool is set to the correct position by aligning it with a mark 218, Fig. I, on the head 2. The means for controlling the removal of material from the work is illustrated in Fig. X, and consists of an axially-displaceable plunger 156 which is raised with the spindle 4 until it is engaged by an adjustable stop 150 whereupon it is depressed to cause a switch 162 to open, breaking the power supply. The stop 150 is provided with a scale to show its axial displacement, and is set to the desired position by means of two pins 138 and 144. These two pins are connected by a cam and link mechanism so that when the pin 138 is placed between the work and tool the pin 144 is placed between the plunger 156 and the stop 150. When the pins are withdrawn, the stop 150 is displaced by the amount it is desired to remove from the work. In order to prevent the machine from being started with the pins in operative position, movement of the pin 144 opens a safety switch. The front of the machine is closed by a sliding door and an indicator is provided to show the relationship between the angular setting of the head and the curve produced on the work.
Patent GB-1247140-A (GB)
Title: Improvements in or relating to fire detectors
IPC: G08B17/12
Filed: 1970-05-05
Abstract: 1,247,140. Fire alarms. PYROTECTOR Inc. 5 May, 1970 [12 May, 1969], No. 21631/70. Heading G4N. [Also in Division G1] A photo-electric switching circuit for use in optical fire detection comprises photo-resistors PR, PB sensitive respectively to red and infrared radiation, and to blue light, connected in a bridge with fixed (preferably equally valued) resistors R2, R3. Under normal standby conditions, there is more ambient blue than red light so that PR has a higher resistance than PB. The junction J1 is therefore negative with respect to that J2, and transistor T1 biased off. On occurrence of a fire, the cell PR drops in resistance and J1 goes positive with respect to J2 and gates on transistor T1 which switches on T2 causing energization of alarm relay 14. Relay contacts 14X2 are also closed to bring in R1 in parallel with R3 thereby to provide an alarm or extinguisher holding action which ignores momentary intensity drops of infra-red radiation.