baber/WOPTO huggingface dataset:
Patent GB-749067-A (GB)
Title: Improvements in or relating to sheet separating machines
Inventor: TEBBS GEORGE WILLIAM
IPC: B65H7/12
Filed: 1953-04-14
Abstract: 749,067. Feeding sheets. BACKHOUSE, H. T. April 12, 1954 [April 14, 1953], No. 10190/53. Class 100 (1).  Sheet-separators; faulty-feed control devices.- In sheet-separating apparatus wherein initially an edge portion of the top sheet is elevated from the pile, means is provided for detecting if two superposed sheets have been elevated and, if so, for stopping the separation of further sheets or operating a warning device. The invention is described as applied to apparatus disclosed in Specification 741,226 wherein suction grippers 140, carried on a sub-frame which descends as the pile 20 is consumed, raise and tauten the front edge 185 of the top sheet, and present it to mechanical grippers carried on upwardly moving chains. Prior to the transfer to the mechanical grippers, two devices each comprising a pair of jaws 300, 301 pivoted together at 302 in the manner of calipers are reciprocated on the sub-frame to the position shown. The jaw 300 passes beneath the sheet, and the jaw 301, which is initially open but is swung into closed position as it approaches the sheet, is separated from the bottom jaw by a distance of more than the thickness of two sheets. Each jaw is hollow and both are connected to a suction pipe 318, whereby if there are two superposed sheet portions 185, suction will build up in the system since the nozzle in each jaw will be sealed by a sheet. The application of suction to the nozzles in the jaws 300, 301 and the separators 140 is controlled by a rotary valve 320, 321 to which the main suction pipe 325 is connected. The rotor 321 has interrupted circumferential grooves therein whereby suction is established for predetermined periods to the pipes 318 and the pipes 329 of the separators, through pipes 324, 328 and an intermediate control device comprising a suction cylinder 330, piston 331, and rod 335. As shown, if suction builds up in the cylinder 330 due to two superposed sheets being separated from the pile 20 by the separators 140, the piston 331 is raised against the action of a spring 332, and, since the pipes 328, 329 communicate via a circumferential groove in the rod 335, the suction to the separators 140 is cut off. In this position, a flat portion 340 on the rod 335 vents the pipes 329 to atmosphere through an aperture 341 in the cylinder 330, and a latch 342 retains the piston in the raised position by engaging a groove in the rod. In addition, the separating apparatus as a whole may also be stopped by arranging the movement of the piston 331 (or a similar device connected thereto) to effect the tripping of the drive thereto e.g. as described in Specification 749,099, or to operate a switch in an electrically-operated driving clutch, or to operate a switch controlling a warning device. The invention may be applied to machines which operate to elevate the rear edges of the sheets, e.g. as described in Specification 427,041.
Patent GB-1220693-A (GB)
Title: Magnetic snap action electric switches
IPC: H01H36/00
Filed: 1968-03-01
Abstract: 1,220,693. Magnetic switches. HERMETIC COIL CO. Inc. 1 March, 1968 [7 March, 1967], No. 10235/68. Heading H1N. A movable magnet switch has two coaxial magnets arranged so that axial movement of one magnet causes movement of the other magnet in the opposite direction to open or close an electric circuit between two contacts. In Fig. 2 two insulated cables 22, 23 have switch housing ends 27, 28 secured to their insulation and the cable 22 passes unbroken through the switch 26 whilst cable 23 is broken and its ends are connected to terminals 36, 48. Terminal 36 extends from a ring 34 engaged by a flange 33 of a conductor tube 29 surrounding the cable 22. A ring magnet 57 on a conductive eyelet 53 is movable along the tube 29 and in its left hand position the flange 56 of the eyelet bridges fixed contacts 46, 47 which extend from respective members 43, 44 on opposite sides of an insulator 38. The cable terminal 48 extends from the member 43 and the member 44 is connected by a jumper 52 to the tube 29. A ring magnet 63 outside the sealed sleeve 58 is movable between flanges 61, 62 to repel the magnet to effect operation. In alternative arrangements the through cable may be omitted, the inner magnet may be the actuating plunger and an indicating lamp may be built into the switch (Figs. 6, 7 and 8 respectively, not shown).
Patent GB-806042-A (GB)
Title: Improvements in or relating to circuits employing multi-cathode counting tubes
Inventor: TOWNSEND RALPH
IPC: H03K29/00
Filed: 1955-04-07
Abstract: 806,042. Electronic counting-apparatus. BRITISH TABULATING MACHINE CO. Ltd. April 7, 1955, No. 10237/55. Class 106 (1). In electronic counting apparatus having two or more multi-cathode gas-filled counting tubes, a glow discharge can be maintained in only one tube at a time and is stepped by driving means operable in response to input pulses to apply driving pulses to all the tubes. and when the discharge is on a predetermined cathode of one tube coupling means are operable to establish a discharge to a predetermined cathode of another tube. The counter shown comprises three dekatron-type tubes 1, 2, 3 having a common anode resistor 5 of such value that a discharge can exist in only one tube at a time. The counter can operate in three scales (12, 16 or 28 as shown) determined by plugwire connections, the scale being selected by connecting one of manual switches 35, 41, 42 to earth line 123. In response to each positive input pulse to be counted applied at 6, driving circuit 7 produces overlapping negative stepping pulses on lines 8, 9 connected to the guide electrodes 11, 10 respectively of all the tubes, and a positive pulse on line 19. Suppose the discharge begins on cathode 12 of tube 1. After nine input pulses it will have been stepped to cathode 14 via plugwire 16 thus applying a positive conditioning potential to jump circuit 18 and quench circuit 24. In response to the pulse on 19 corresponding to the tenth input pulse, the circuit 24 produces a negative pulse on line 25 to extinguish the discharge and circuit 18 produces a longer negative pulse on socket 20 and plugwire 21 to initiate a discharge at cathode 22 of tube 2. Similarly, with the discharge on cathode 26 of tube 2, circuits 31 and 24 are conditioned whereby, in response to the next (twentieth) input pulse, the discharge is transferred to cathode 27 of tube 3. After a further seven input pulses the discharge will reach cathode 30 and, with switch 35 operative as shown, jump circuit 32, and circuit 24, will be conditioned via plugwire 34. Thus, in response to the twenty-eighth input pulse, the circuit 32 produces an output pulse which through plugwire 37 returns the discharge to the first cathode 12 of tube 1; this output also is available at socket 38 to provide a carry pulse for a further counter. If switch 41 or 42 were operative instead of 35, circuit 32 would be conditioned so that the discharge is returned to cathode 12 after twelve or sixteen steps respectively. The switches may be replaced by relay contacts or trigger circuits. The counter may be modified so that a jump circuit operates as soon as the discharge reaches the controlling cathode. Detailed circuit diagrams of the circuits 7, 24 and 32 are given; the circuits include double triodes used as monostable flipflops and cathode followers, diode coincidence circuits and transition pulse generators. Reference is made to counting in units of weight. Specification 806,041 is referred to.
Patent GB-166346-A (GB)
Title: Improvements relating to the production of patterns or ornamental effects upon fabrics
IPC: D06P1/00
Filed: 1920-04-13
Abstract: 166,346. Calico Printers' Association, Ltd., and Warr, W. April 13, 1920. Printing processes; embossing; printing yarns &c.-Ornamental patterns are produced by subjecting portions of the fabric, or of the warp threads used in its manufacture, while in a damp or wet condition, to combined friction or rubbing and pressure and then dyeing the fabric. The rubbed portions of the material have greater affinity for dyestuffs and dye a deeper shade than the body of the fabric. Mercerized goods are washed and dried after mercerization, and are then damped, before the frictioning process. In the apparatus shown in the drawing, the fabric or sheet of warp threads a is passed between a cylinder b having a design in relief or intaglio and a friction block c, to which pressure is applied to cause a drag on the material, which is drawn. through the machine by the positively-driven roller b. The friction device may have ribs so that, as the material is drawn between them and the roller, it is rubbed in parallel lines.
Patent GB-865847-A (GB)
Title: Gear finishing machine
IPC: B23F23/08
Filed: 1959-03-25
Abstract: 865,847. Gear-finishing. NATIONAL BROACH & MACHINE CO. March 25, 1959 [May 14, 1958], No. 10344/59. Class 83 (3). A gear shaving or honing machine comprises gearing for rotating work and tool spindles 10, 16 in timed relation and means operable during the rotation to effect a circumferential adjustment between them. A gear 14 on the workspindle 10 is driven to rotate the tool 18 through a gear 24, on a carrier 26 adjusted by a screw 28, and a gear 22 splined to the tool-spindle 16. The gear 24 is elongated to allow transverse adjustment for larger gears or tools. In a machine having a knee 42, Figs. 4 and 6, adjusted by a wheel 50, a work-support 52 is traversed by a motor 60 and a screw 56. A motor 88 through a pulley 82 drives the gear 14 which is adjustable angularly by a wheel 78 engaging a nut 74 on a bracket 66 bolted to the knee 42. Rotation of the wheel causes axial movement of a sleeve 92 having a helicallysplined connection with the gear 14. The tool mounted on a plate 96 may be angularly adjusted about the common normal to vary the crossed axes setting. The teeth of the honing tool may be reversely-crowned.
Patent GB-255519-A (GB)
Title: Improvements in or relating to percussive tools
IPC: B25D9/10
Filed: 1925-04-21
Abstract: 255,519. Alcock, J. F. April 21, 1925. Percussive tools. - A two - stroke internalcombustion engine piston D and a free hammer piston F move oppositely in a working cylinder C, with inlet and exhaust ports C2, C<3>. The hammer piston F is returned by compressed air or gas from the space C<6>, conveyed to the front of the tool by a passage H, whilst the charge entering at C<5> is compressed in the crank case and transferred to the cylinder by way of a pipe C<4>. The pressure in the space C<6> is maintained in accordance with that of the charge by means of a pipe J<1> and a non-return valve J, mounted so as to be reversible for the purpose of retaining the tup in its forward position. The exhaust escaping at K<1> is used to draw air through a cover K<2> over the cooling ribs K. In a modified arrangement the space C<6> communicates with the space H through inlet and outlet valves P, P<1>, either of which is connected with the space H. the other being put to atmosphere through the space Q<5>, by means of a hand-operated chauge-over valve Q. A relief valve S is also provided.
Patent GB-724470-A (GB)
Title: Ice-making
Inventor: SHAGALOFF HARRY C
IPC: F25C1/04
Filed: 1953-04-16
Abstract: 724,470. Delivering measured quantities of liquid. SERVEL, Inc. April 16, 1953, No. 10402/53. Class 106 (5). [Also in Group XIII] In apparatus. for supplying measured quantities of water to the mould of an ice-making machine, (see Group XIII), a valve 52 is opened by a rotated cam 45a to allow water to flow from a feed-pipe 110 through the valve and a pipe 113 to a sealed chamber 54 in which the water pressure depresses a diaphragm 123 against a spring 128. Valve 52 is then closed and a cam 45b opens a valve 53 so that spring 128 through diaphragm 123 expels water through pipe 114, valve 53 and pipes 116, 81 to the ice-mould. Pipes 166, 81 are coupled together by a junction 156 which causes the water under pressure to pass to pipe 81, but any leaking water not under pressure runs down a drain 160 and not to the mould. A hole 161 in pipe 160 prevents water from syphoning from the mould.
Patent GB-737031-A (GB)
Title: Improvements in electric circuit arrangements for starting and operating gas and or vapour filled electric discharge devices
IPC: H05B41/232
Filed: 1953-04-16
Abstract: 737,031. Supply systems for space-discharge devices. GENERAL ELECTRIC CO., Ltd., and WILLIAMS, C. E. March 30, 1954 [April 16, 1953], No. 10433/53. Class 38 (4). Sequence starting of two series-connected electric discharge devices, e.g. mercury vapour fluorescent lamps L1, L2 is effected by a bypass capacitor C4 which shunts one L1 of the tubes and a part of a ballast choke B and forms with said part a circuit which resonates at a frequency higher than the supply frequency; at starting, substantially the entire operating voltage is first applied to the unshunted lamp L<SP>2</SP> which starts, whereupon the series-resonant circuit is excited by the waveform of the voltage .across lamp L<SP>2</SP> and its voltage is stepped up by the autotransformer action of the tapped shoot B to produce a resultant total voltage sufficient to start lamp L<SP>1</SP>. As shown, the choke may be part of an overall capacitive ballast B, C, or it may constitute the entire ballast. The ballast alternatively may be dispersed in the series interconnection between the two lamps. The lamps may be of the cold cathode type, or, as shown, of the hot cathode type whose filaments are heated by a transformer W which also steps up the supply voltage to a value suitable for the lamps exchange. The lamps may have earthed starting strips, not shown, and either or both lamps may be replaced by two or more series connected lamps. Radio interference suppression capacitors C<SP>2</SP>, C<SP>3</SP> are provided. Specification 565,843 is referred to.
Patent GB-623794-A (GB)
Title: Improvements in and relating to swath turners
IPC: A01D78/14
Filed: 1947-04-18
Abstract: 623,794. Swath-turners. DICKIE, J. April 18, 1947, No. 10435. [Class 6(iii)] A tractor-drawn swath-turner is characterized in that no provision is made for adjusting the tines relatively to the implement frame, the frame being constructed for attachment to the power-lift links of the tractor so as to be bodily liftable thereby. The tines b project from heads a containing sun and planet gearing. The heads are mounted on sub-frames c tiltable about an axle d on which is also mounted the main implement frame including side members i and a cross-bar j. The main frame is connected to upper and lower links m and o on the tractor, so that the implement may be lifted bodily by power-lift arms p. A spring q is attached between an anchor s on the main frame and an arm e of the sub-frame to hold the two frames resiliently together, but to permit the tines to rise on encountering obstructions. A single wheel u is carried on the axle d. The gearing may be driven from the axle or from a power take-off. Screens h are mounted on the sub-frames.
Patent GB-315238-A (GB)
Title: Improved pressure registering apparatus for air or gas chambers and the like
IPC: G01L7/16
Filed: 1928-04-10
Abstract: 315,238. Ashton, H. April 10, 1928. Pneumatic-tyre pressure gauges. -A cylinder E having a spring loaded piston H which also acts as a valve for the air inlet, is provided with a screwed plug for adjusting the tension of the spring, and with a tube B which is fitted with a reed or whistle A to give an audible signal when the pressure in the container exceeds that for which the spring is set. The tube may also be screwed down on to the piston rod to lock the valve in the closed position. The whistle may be screwed into the tube B in a modification and not formed with it. The device may be attached to the air tube of a pneumatic tyre.
Patent GB-309089-A (GB)
IPC: F02F7/00
Filed: 1929-04-04
Abstract: 309,089. Motorenfabrik Deutz Akt.- Ges. April 4, 1928, [Convention date]. Starting.-To enable a multicylinder engine to be built either right or left hand, auxiliary casings d, h are mounted one at each end of the engine. The casing h is supported on a housing g attached to the crank case a; the housing contains the oil filter and a distributor k for the starting air. The control shaft p for this distributor is adjusted by a handle r. Pipes u, u<1> lead from the distributor to the cylinders and pipes v, v<1> connect the filter l to the oil pump s. The shaft p and its handle r may be placed on either side of the engine.
Patent GB-417606-A (GB)
Title: Improved construction of tooth brush
IPC: A46B9/04
Filed: 1933-04-08
Abstract: 417,606. Brushes; hand-tool handles. PORTER, A. F., c/o Maw Son & Sons, Ltd., S., 7, Aldersgate Street, London. April 8, 1933, No. 10514. [Classes 19 and 61 (i).] The handle of a toothbrush is formed from a synthetic resin or solid phenol aldehyde condensation product, or powders of a similar nature moulded under heat or pressure. The head 1<a>, Fig. 4, is formed during moulding with a series of holes 2 in the face for receiving the bristles and a series of grooves 4 in the back for wiring purposes. The handle is further formed with a thickened neck 1<b>, Fig. 6, for strength.
Patent GB-103771-A (GB)
Title: Improvements in Duplex and Multiplex Telegraphy.
Inventor: SQUIER GEORGE OWEN
IPC: H04J1/00
Filed: 1916-07-26
Abstract: 103,771. Squier, G. O., and Cohen, L. July 26, 1916. Duplex and multiplex telegraphs; harmonic telegraphs.-In a duplex telegraph system employing alternating-current, and in which signalling is effected in the manner described in Specification 22265/14, the alternators at opposite ends of the line have different frequencies and are connected to the line and to the receiver of its station in such a manner that the signalling-currents transmitted from a station do not affect the receiver at that station. To eliminate further any effect of the transmitting-currents of a station on its receiver, a circuit tuned to the frequency of these currents is placed in the receiver circuit; and to prevent signalling-currents from one alternator from passing to earth through the alternator at a distant station, a condenser and an inductance are placed in the circuits of the alternators. In the arrangement shown in Fig. 1, each end of the line 1 is provided with a transmitting-alternator 6, the amplitude of the alternations of which is varied by a resistance 4 for signalling purposes, and a receiver 10. The alternator 6 is connected to the line 1 through the primary winding 2 of a transformer, and to earth through the primary windings 2a of a second transformer. The secondary windings 3, 3<a> are connected in series in the circuit of the receiver 10, and a looped circuit 8, 9, tuned to the frequency of the alternator 6, is connected in this circuit. An inductance 5a and a condenser 5 are placed in the circuit of the alternator 6. In operation, the currents in the windings 2, 2a from the alternator 6 of a station produce opposing-potentials in the windings 3, 3<a> of the receiver circuit of that station, while any current produced in the receiver circuit due to lack of balance between these potentials is greatly reduced by the circuit 8, 9. When signalling- currents from a distant station pass through the windings 2, 2a in series, the potentials produced in the secondary windings 3, 3<a> are additive, and since these currents are of a different frequency from that to which the circuit 8, 9 is tuned, the current produced in the receiver circuit is not greatly affected by the circuit 8, 9. In a modification, the alternator 6 is placed in a closed local circuit containing two primary transformer windings, the secondaries of which are in the line and receiver circuits respectively. The line circuit also contains a primary winding, the secondary of which is in the receiver circuit. The receiver circuit, in this arrangement, contains a looped circuit tuned to the frequency of the alternator of its station, and the alternator circuit contains a looped circuit tuned to the frequency of the distant alternator. In a further modification, an intermediate circuit inductively coupled to the transmitter and receiver circuits of a station is employed. The arrangement is stated to be applicable to multiplex working.
Patent GB-790434-A (GB)
Title: Improvements in or relating to double beam spectrometers
Inventor: MARTIN ALBERT EDWARD
IPC: G01J3/42
Filed: 1955-04-13
Abstract: 790,434. Photo-electric spectrometers. PARSONS & CO., Ltd., C. A. March 23, 1956 [April 13, 1955], No. 10607/55. Class 40 (3). In a double-beam spectrometer a chopping means alternately passes and blocks the radiation beams for substantially equal periods before they enter a monochromator whose associated output detector produces an electric signal which is amplified and applied to filter circuits selecting a signal at the chopping frequency and a signal at half that frequency, these signals being fed to comparison means. In the embodiment described, shutter D, apertured in 90 degrees arcs, as shown in Fig. 1b, is rotated in synchronism with the reciprocating motion of a pair of plane mirrors C driven as described in Specification 666,270. The electrical output of the radiation detector (see Fig. 3), is applied via high-gain amplifier 2 provided with filter circuits 3, 4, one selecting the component at the chopping frequency whose amplitude is proportional to the radiation energy A traversing the comparison cell plus that, B, traversing the sample and the other selecting the component, of amplitude proportional to (A - B), at half the chopping frequency, to conventional rectifying and smoothing circuits and thence via the arrangement shown of potentiometers 5, 6 to a self-balancing potentiometer whose pointer records the transmittance, B/A, of the sample.
Patent GB-723036-A (GB)
Title: Torque responsive stud tightening machine
IPC: B25B23/147
Filed: 1952-04-28
Abstract: 723,036. Screwing-up nuts &c. FARMER, H. E. April 28, 1952 [May 17, 1951], No. 10639/52. Class 83 (3). A machine for tightening screwed fasteners, particularly for tightening the cap screws of engine bearings in pairs with selected equal torque, comprises a pair of spindles 78 carrying sockets 80, a differential mechanism 54 for dividing the torque supplied by an electric motor equally between the two spindles and an electronic control system for disconnecting an electromagnetic clutch 28 (not shown), in the motor drive and for retracting the spindles when the torque on the screws reaches the selected value. The drive from the clutch is connected by a worm shaft 30 and stub shaft 52 to the spider 54 of the differential gear and pinions 56 journalled in the spider mesh both with a pinion 62 on an inner shaft 64 and a pinion 58 on an outer tubular shaft 60. The shafts 60, 64, separately drive shafts 66, 68, in which the socket spindles 78 are splined for reciprocable movement by a pair of hydraulic rams 86 controlled by a solenoid-operated valve 98 (not shown). On closing a starter pushbutton, with the driving motor already run. ning, relays are operated to engage the clutch 28, disengage a brake 136 (not shown), on shaft 30 and, after a delay which allows the differential to run up to operating speed, set the hydraulic valve so that the spindles are lowered to engage the sockets with the cap screws. The differential then divides the torque from the shaft 30 equally between the spindles so that when the input on one spindle is half the desired torque, the spindle stops, while the other spindle continues to rotate until its input also reaches half the torque. A valve supplied with adjustable bias from a pair of rectifier valves is fitted in the control system and one of the leads of the driving motor is in circuit, through a transformer. with the bias circuit so that when the current consumption of the motor corresponds to the desired torque, the bias is overcome and the valve then conducts current to operate the relays and thus disconnect the clutch 28, apply the brake 136 so that the momentum of the differential does not cause over-tightening, and change over the hydraulic valve so that the spindles 78 are withdrawn upwards. Reference has been directed by the Comptroller to Specification 687,616.