baber/WOPTO huggingface dataset:
Patent GB-220590-A (GB)
Title: Improvements in or relating to escapement-actuating mechanism of typographical machines
IPC: B41B11/18
Filed: 1923-12-01
Abstract: 220,590. Mergenthaler Linotype Co., (Assignees of Kennedy, D. S.). Aug. 18, 1923, [Convention date]. Escapements and keyboards.-Relates to means for delivering matrices, type, dies &c. from main and auxiliary magazines arranged side by side or " in tandem " by means of a single keyboard. In one arrangement, the main andauxiliary escapement-reeds D<2>, Fig. 2, are actuated by powerdevices D<3> of known form, which are operated by three series of slides H<1>, H<2>, H<3>, Fig. 5. The slides H<3> operate the power-devices for the auxiliary reeds, and the slides H<1>, H<2>, which are arranged in pairs are adjustable laterally so as to be alternatively engaged with the key-levers G. The slides H<1> are connected with the power-devices of the main escapement-reeds, and the slides H<2>, which are shorter, have lugs H' adapted to operate bails H which actuate the slides H<3>. The slides H', H<2> are mounted in an adjustable frame which can be shifted by means of a hand-lever to transfer the action of an appropriate number of the keys from the main to the auxiliary escapement-reeds. In an alternative arrangement the bails Hare arranged above the power-devices of the main escapement-reeds, two sets of power-devices being still employed.
Patent GB-159343-A (GB)
Title: Improvements in or relating to dynamo electric machines
IPC: H02K13/10
Filed: 1919-12-04
Abstract: 159,343. Siemens Bros. Dynamo Works, Ltd., and Wilson, J. C. Dec. 4, 1919. Improving commutation, auxiliary means for. -Flash-overs in commutating machines are minimized by mounting in the region where flashing is likely to occur a grid-like arrangement of metal rods, plates, &c. insulated from each other and from the machine, the result being to deionize the gases around the arcs or sparks occuring at the brushes or on the commutator. The bars 10, Fig. 2, may be carried by segmental end plates 9 so as to constitute a cylindrical cage mounted in sections between the brush-holders close to the commutator surface 11, or, as shown in Fig. 3, the insulators 9 may support a grid made of 'V-shaped, curved or corrugated plates 12, of which a few are shown in the Figure, and between which the ionized gases are thrown out. A grid of radial insulated bars may also be mounted between the brush-holders and the endplate of the machine to prevent flashing to the frame. Draught-producing arrangements may be used for forcing the air near the commutator through the grids, or the risers may be formed as fan-blades and used in combination with a shroud and baffles attached to the machine frame so as to direct air on and along the commutator. Or, in a machine with a split ventilated commutator, baffles may be used to direct along the commutator air which issues between its two halves. In the Provisional Specification, it is also stated that suitable electromagnetic or electrostatic devices may be used for directing the ions towards the grid.
Patent GB-734660-A (GB)
Title: Improvements in and relating to bottle-capping machines
IPC: B67B3/064
Filed: 1953-11-03
Abstract: 734,660. Feeding webs; cap-forming machines. SOC. DU SURBOUCHAGE ASTRA. Nov. 3, 1953 [April 20, 1953], No. 30403/53. Classes 100 (1) and 100 (2). Metallic foil strip for forming bottle caps is centred beneath the cutting tool of a bottlecapping machine by being moved through a distance slightly greater than that required to position it in the proper punching position and then moved backwards a distance equal to the excess in the forward feed movement and, during this small rearward movement, guiding the strip in a transverse direction to cause the longitudinal axis of the strip to coincide with the axis of the cutting tool. The transverse guiding is effected by guide fingers 18, Figs. 5, 6 each having a cross-section with a forwardly directed angle 53, which are inserted into perforations 49 previously formed in the strip, the perforations having similar forwardly directed angles 52. The rearward movement of the strip causes the sides of the perforations to engage the fingers and displace the strip sideways until the angles 52 of the perforations coincide with those of the guide fingers as shown in Fig. 6. The strip 6 is fed under a stationary roller 20, Figs. 1, 4, between a pair of stationary rollers 44, 45, and a vertically movable roller 48, between grooving rollers 29, 36 mounted on a slide member 23, and under cam-operated presser fingers 24 adapted to grip the strip against the member 23. The guiding fingers 18 are pivotally mounted on a transverse spindle 31 adjustably clamped in a slotted bracket 8. Recesses 7 in the upper flange of an angle member 15 attached to the lower die member 12 coincide with the fingers 18 to allow them to pass through the perforations 49. The slide member 23 is reciprocated by a cam-operated quadrant engaging rack teeth 27 formed thereon. In the forward or feeding stroke the strip is held against the slide member by the presser finger 24 and is advanced to a little beyond the punching position. The fingers 18 then engage in the perforations and the presser fingers 24 are raised by the cam, releasing the strip so that the roller 48 may fall, deforming the strip as shown in Fig. 2 and causing it to be pulled back slightly. This centres the strip as explained above. After the punching operation the slide 23 is moved rearwardly, the grooving rollers 29, 36 forming spaced parallel grooves along the strip adapted to stiffen the strip and prevent buckling during its forward movement. Instead of being triangular the perforations in the strip may be square having one corner pointing forward. The coacting centring fingers may then be triangular or square in section so that they co-operate with the perforations in the same manner as shown in Figs. 5 and 6.
Patent GB-554405-A (GB)
Title: Improvements in or relating to electrical indicating or control systems
IPC: G01C17/26
Filed: 1939-11-20
Abstract: 554,405. Automatic control systems. COOPER, A. H. Nov. 20, 1939, No. 30406. [Class 38 (iv)] [Also in Groups XL and XXXVIII] Electrical indicating and control responsive to relative movement between two bodies utilize a thermionic valve oscillator having a feed back path and two control devices operated simultaneously to vary the feed back and the constants of the grid circuit so arranged that each produces a like effect on the output of the oscillator if the relative movement is in one direction but opposite and therefore neutral effects if the movement is in another direction, e.g. at right-angles to the first. The elements 16, 17 of a differential condenser respectively associated with the feed back circuit and with the grid circuit of the valve 7 co-operate with a single element 15 so that relative movement of 15 in respect of 16 and 17 will increase the feed back coupling and reduce the attenuation of the grid impulses in the circuit shown ; the plate 17. may alternatively effect a change of frequency. The valve 7 is arranged as a rectifier and its output may be amplified by a D.C. coupled valve 19 adapted to trigger a relay 20 for automatic control purposes or to furnish an output for measure ment or indication. If the voltage source 8 is liable to change with the current drain on it, the circuit may be balanced so that the voltage between cathode and grid does not vary with such change or an impedance 22 may be connected in series with either anode or cathode and part of the voltage source for this purpose. In applying the invention to a gyroscope in order to produce a control or indication in respect of yaw of a craft irrespective of pitching movements or vice versa an electrode 15 of a differential condenser may be mounted on the respective gimbal rings 24, 25 of a gyroscope each being associated with a pair of fixed plates 16, 17, each set of plates being at right-angles to the other and being connected in valve circuits operating in respect of yaw and pitch respectively. Movement of an electrode 15 in a direction longitudinal with regard to the plates 16, 17 due to pitching or yawing movement of the craft will not affect the control or indication of yaw or pitch respectively. The relay 20 may control contacts for a reversible electric motor restoring the gyroscope or annulling the deviation of an aircraft from its course.
Patent GB-463858-A (GB)
Title: Improved clamping means for shuttering used in concrete wall building and the like
IPC: E04G17/12
Filed: 1936-11-09
Abstract: 463,858. Clamps for wall centring. VIGIER, W. DE. Nov. 9, 1936, No. 30482. [Class 20 (ii)] A shuttering clamp comprises uprights 2, which carry the shuttering 1, a right- and left-hand spacing screw 4, which passes loosely through the uprights and is provided with nuts 5 which grip the uprights by means of extensions 6, Fig. 3, to prevent rotation of the nuts as the screw is rotated, and an upper right- and lefthanded clamping screw 8, which coacts with double-nut portions 9 on each side so that rotation of the screw causes the upper ends of the uprights to move outwardly or inwardly for clamping and release respectively. The nuts 9 on each side of the uprights may be connected by a saddle 10 which prevents their rotation relative to the uprights, the nuts on each side being sufficiently far apart to allow free movement of the uprights between them.
Patent GB-286577-A (GB)
Title: Illuminated spinning-top
IPC: A63H1/24
Filed: 1927-11-14
Abstract: 286,577. Arnold, C. Nov. 14, 1927. Tops for spinning on surfaces; spark-producing toys. - In a spinning-top having a hollow foot p resting on the spinning surface, and wherein sparks are produced by a device disposed within the casing a of the top and are viewable through windows d in the casing, the spark-producing device comprises ceriumblocks n that rotate with the casing and frictionally engage an emery disc o mounted on the foot p, the cerium-blocks being mounted on levers m pivoted to a disc i that is freely mounted on the spindle c of the top and is connected to the casing by arms k passing through slots in a sleeve g attached to the casing. Coloured, transparent panes f are mounted beneath the windows d. Weighted arms r are attached to the disc i to increase the inertia of the top.
Patent GB-883718-A (GB)
Title: Improved impedance indication apparatus
Inventor: CLIFFORD PETERSON MILLER
IPC: G01R27/16
Filed: 1959-09-08
Abstract: 883,718. Impedance resistance measurement. DE BAVILLAND AIRCRAFT CO. Ltd. Aug. 12, 1960 [Sept. 8, 1959], No. 30565/59. Class 37. The impedance of a power supply circuit having live neutral and earth lines L, N, E is measured by first connecting a variable resistance R 1 , a fixed resistance R 2  and an ammeter A 1  in series with switch S 1 , across live and neutral or earth determined by switch S 2  So that the resistance R 1  may be adjusted to pass a predetermined load current measured by A 1 , and then changing over switch S 1  so that the load circuit is alternately connected and removed by switch 2 operated by cams driven by motor M. Lines X, Y are connected to the live and neutral or earth lines at any chosen point of the supply circuit, and the voltages therebetween on full load and no load respectively are selected by switch 4 operated synchronously with switch 2, and capacitance coupled to Cockcroft-Walton voltage doubler rectifying circuits whose smoothed unidirectional outputs are connected in opposition to an ammeter A 2  in series with resistance R 5  calibrated in line impedance values. Switch 4 disconnects contact 8 before switch 2 disconnects contact 6 and reconnects contact 8 after switch 2 reconnects contact 6. Resistance R 5  may be switchable to vary the ammeter range, and resistance R 2  may be switchable to apply plural alternative known loads. The voltage doublers may be replaced by other rectifier circuits and the motor-operated switches may be replaced by a vibratory relay.
Patent GB-383052-A (GB)
Title: Improvements in and relating to electric dry batteries
IPC: H01M50/559
Filed: 1931-11-04
Abstract: 383,052. Galvanic batteries; couplings. WELCH, A. P., 19, Lincoln Gardens, The Drive, Ilford, Essex. Nov. 4, 1931, No. 30594. [Classes 38 (i) and 53.] The carbon electrodes of dry cells for use in electric torches are provided with metal terminal caps 5 having pointed projections 6 for making contact with the zinc container 3 of an adjacent cell. The projection-may be offset from the centre of the cap, as shown, and may be pressed or punched out from the inner side of the cap or it may be in the form of a pin passing through the cap. The cap may be provided with more than one such projection.
Patent GB-422236-A (GB)
Title: Improvements in or relating to drying stoves
IPC: F26B21/02
Filed: 1933-11-04
Abstract: 422,236. Drying-apparatus. MITCHELL, L. A., 37, Peter Street, Manchester. Nov. 4, 1933, No. 30720. [Class 34 (ii)] A drying-stove, for example for pottery ware, comprises a compartmentally - divided stove with means for circulating air through each compartment, trucks for carrying the articles to be dried and adapted to form closures for the compartments, each truck containing upper and lower series of shelves and a conduit connecting the two series so that air flows through one series and back through the other, the air flowing in a closed circuit, having means for admitting or withdrawing air to give humidity or temperature control. In one form, each compartment a has its own heater c and valve n and circulating means d. A cool air inlet e has a damper f, near which may be a steam spray, and an exhaust g may have a damper h. The shelves of the truck b are divided into two series by plate p, so that the air flows over the upper shelves, through the span j and back over the lower shelves. The plate k on the truck serves as closure to the compartment. After the drying, cooling air may be circulated through the compartment. In another form, a single air heater and fan are provided, the air then flowing through a duct having a valved connection to each compartment, which has also a valved connection to the return duct ; a separate duct and fan with valved connections are provided for the cooling air.
Patent GB-1382047-A (GB)
Title: Thermal storage heaters
IPC: G05D23/24
Filed: 1971-06-30
Abstract: 1382047 Thermal storage heaters BRITISH DOMESTIC APPLIANCES Ltd 28 June 1972 [30 June 1971] 30746/71 Heading F4U [Also in Divisions H2 and G3] The temperature of a room is maintained at a desired value by an electric storage heater the output of which, is adjusted by adjusting the speed of a fan motor (e.g. a shaded pole induction motor) 14 (Figs. 1 and 2) thereof in dependence upon the temperature of air flow at the air inlet 15 of the heater and sensed by a sensor 17, e.g. an N.T.C. thermistor. The motor speed is controlled by a circuit Fig. 2, which changes the RMS value of the motor input voltage by varying the firing angle of an S.C. Rectifier Th in a diode switching bridge 21, in dependence upon the resistance of thermistor 17. The desired temperature may be pre-set on a resistor RV1. If the sensed temperature exceeds a predetermined value the SCR will not receive firing pulses and the fan will be stopped, only a minimal control circuit current flowing in the motor.  In operation, a capacitor C1 is charged initially at a high rate via R4, D1, to a certain value, and then at a lower rate via R3. A ramp and pedestal waveform is thereby produced at the emitter of a transistor TR1. The base voltage of TR1 is dependent upon the resistance of sensor 17. When the potential at its emitter sufficiently exceeds that of its base, TR1 conducts, turning on TR2 which in turn renders TR1 more conductive and the pair saturate rapidly. C1 then discharges via TR1 and TR2 to turn ON the SCR. The control circuit power supply now collapses and the process is repeated in the next half cycle of the supply. If the motor is highly inductive it may be shunted by a resistor and capacitor, unit A so as to ensure that the SCR current exceeds its holding current value throughout the supply voltage half cycle when it is required to conduct. R7 is for linearizing thermistor 17.
Patent GB-1503238-A (GB)
Title: Pushpull amplifier
IPC: H03F3/213
Filed: 1975-07-23
Abstract: 1503238 Transistor amplifier PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd 23 July 1975 [26 July 1974] 30797/75 Heading H3T In a single-ended push pull amplifier, e.g. for a deaf-aid, comprising a complementary series pair of transistors T1, T2, feeding a common output 7, the quiescent current is stabilized against variations in supply voltage across terminals 8, 9 by complementary current mirror circuits 1, 2 by which the current through base resistor R1 is maintained a constant multiple n of that flowing through diodes or diode connected transistors D1, D2 and resistor R2, the value of R2 being chosen to minimize the rate of change with supply voltage of the quiescent current through T1, T2, taking account of the input impedances of D1, D2. R1 is chosen to bias T1, T2 in class B or AB as required. Voltage feedback may be taken from output 7 to one input terminal 12 of pre-amplifier V, the other 13 receiving the input to the system; alternatively current feedback may be provided across a separate A.C. load R3 fed by complementary transistors T5, T6 connected with inputs in parallel to transistors T1, T2 to maintain currents proportional to those approaching output terminal 7. Gain control is provided by variation of R3. If the load on the output consists of an earphone with centre tapped winding (Fig. 3, not shown), transistors T1 and T2 are eliminated, leaving 11 as the output terminal from transistors T5, T6; further transistors (T7, T8) replace T1, T2 in supplying load current but without direct collector connection, their current being copied by T5, T6 for feedback. To provide double ended push-pull output the upper transistor (T7) on line 8 provides collector current passing to line 9 via a diode or diode-connected transistor across the base-emitter of another transistor supplying one side of the earphone winding, the other side being supplied direct from the transistor (T8) replacing T2; the centre tap of the winding is taken to supply line 8. All transistors may be in integrated circuits, the diodes being included as diode connected transistors: capacitor C and variable resistor R3 are external, and optionally also resistors R1, R2. The circuit also provides some stabilization against temperature variation.
Patent GB-896534-A (GB)
Title: Improvements in and relating to bimetallic switches
Inventor: BRAND HELMUT
IPC: H01H37/52
Filed: 1960-09-07
Abstract: 896,534. Thermal switches. LICENTIA PATENT-VERWALTUNGS G.m.b.H. Sept. 7, 1960, No. 30832/60. Class 38 (5). [Also in Group XIII] A switch comprises a bimetallic element which is pivotally mounted by means which provide an adjustable friction force against turning of the bimetal at its pivot. A bimetallic strip 1, having a heater winding, is secured to a strip 2 pivoted around a pin 3. Also the strip 2 is secured to a friction spring 4 which comprises three vanes bearing against a fixed friction support 5. The pin 3 is fixed and the stressing of the spring 4 is determined by the depth to which the nuts 6, 7 are screwed on to the pin 3. A push-rod 8 is adapted to operate on actuating element 9 of the switch and a screw 10 adjusts the position of the, push-rod 8. The spring 13 exerts a force at the end of the bimetallic element. The heater winding of the bimetallic element becomes energized when the temperature of the space exceeds a certain amount, this causes the bimetallic element to expand so that the push-rod 8 operates the switch, the force required to operate the switch being less than the frictional force of the friction spring. The bimetallic element continues to expand after the load has been switched off as the room temperature does not drop immediately, thus the friction spring turns in the direction of the arrow 14. On cooling the reverse occurs. In another embodiment the frictional force is provided by means of cup springs. In a further embodiment the plate on which the cup springs rest is slightly twisted so that the cup springs are stressed more in one direction of plate movement.
Patent GB-202890-A (GB)
Title: Improvements in slicing machines
IPC: B26D7/00
Filed: 1922-11-11
Abstract: 202,890. Berkel & Parnall's Slicing Machine Manufacturing Co., Ltd., (Berkel, W. A. van). Nov. 11, 1922. Cutting slices in succession.-In a slicing- machine, a gear-box C is made integral with the frame A and contains bevel-gearing for actuating the knife and reciprocating carriage. A boss D, stiffened by ribs E, accommodates a footstep bearing comprising a ball G, hard steel plate H<1>, adjusting screw H and lock-nut, J. The shaft F, which is recessed to receive the ball G, passes through a bearing N in the spigoted gear-box cover K and is provided with a table-reciprocating crank P. A projecting portion Q of the gear-box receives a bearing R for the hand-wheel shaft S. The bearing R may be aligned in the gear-box by packing thin metal plates around its exterior and is secured by the bolt T, lock-nut Z and washer A<1>. A bearing for the knife-driving shaft D<1> is also provided. In a modification, the gear-box is closed by a bottom cover, the boss D being formed on the cover.
Patent GB-1440236-A (GB)
Title: Refuse disposal
IPC: C10B53/00
Filed: 1973-06-28
Abstract: 1440236 Coking refuse MANNESMANN AG 28 June 1973 [8 Sept 1972] 30892/73 Heading C5E Refuse is disposed of by subjecting the refuse to dry distillation in the absence of air and water in a coking oven, purifying and recirculating at least a part of the gas thereby produced into the bottom of the oven and passing the gas up through the refuse to heat the refuse; the surplus gas may be scrubbed. Before being charged to the oven, the refuse may be subjected to drying and vapours produced in the drying operation are introduced, in a condensate state after separation of the water content from the condensate, into the coking oven. The oven may be externally heated. The region of the oven between the refuse inlet and the top surface of the coke bed is filled with hot gas, the temperature of the hot gas corresponding to the coking temperature, and the refuse is introduced continuously into the oven and falls through the hot gas region from the refuse inlet on to the coke bed. The oven may be a shaft furnace or a rotary tubular furnace-and at least two heaters may be provided to heat the recirculated gas to the necessary coking temperature and an injector is arranged in the gas flow. A sand cracker and an injector may be arranged in the gas flow.
Patent GB-289357-A (GB)
Title: Improvements relating to direction indicators for road vehicles
IPC: B60Q1/38
Filed: 1927-11-17
Abstract: 289,357. Tarnopolsky, T. Nov. 17, 1927. Inertia switches.-In a road-vehicle signalling- apparatus a box 13 on the steering-wheel encloses a gravity-operated switch comprising a ball 15 which in rolling from the broken line position to the full line position, moves a contact lever 16 so as to energize an electromagnet 25 adapted to move a switch lever 7 to neutral position.
Patent GB-1379110-A (GB)
Title: Appratus and method for bundling transporting and feeding sheets
IPC: B65H31/30
Filed: 1972-07-03
Abstract: 1379110 Trolleys A R STOBB 3 July 1972 [2 July 1971] 31020/72 Heading B7B [Also in Division E2] A clamp 24 for securing vertical stacks of paper sheets between its jaws 56, 57, has telescopically sliding box sections 47, 48 locked by a roller 53 riding on ramp 51 and acting through a hole 60 in the outer box section. The clamp has wheels 64 which enable it to be wheeled into guide rails 27, Fig. 1, of a trolley 26 after it has been filled by a stacker with sheets 19 delivered from a compressor 10. It is similarly delivered from the trolley and unstacked (Fig. 2, not shown). A lever (not shown) may be inserted at hole 62 to release the clamp.