baber/WOPTO huggingface dataset:
Patent GB-1345926-A (GB)
Title: Devices for controlling the position of a continuous strip
IPC: G01D5/34
Filed: 1971-09-20
Abstract: 1345926 Automatic control of position GRAH BETEILIGUNGSGESELLSCHAFT mbH 20 Sept 1971 [22 Sept 1970] 43699/71 Heading G3R A device for controlling the lateral position of a continuous strip includes an infra-red emitter, at least part of the strip lying in the ray path, and a detector including a revolving mirror at the focal point of a parabolic mirror providing a constant amplitude pulse of duration proportional to the strip position. In an embodiment, infrared rays from a transmitter 1, reaching a detector 2, are directed to a receiver 5 e.g. a germanium photodiode via a parabolic reflector 3 and rotating mirror 4. The receiver 5 saturates easily to provide a constant amplitude output pulse of duration proportional to the rays received by the detector i.e. the position of the edge 8 of the strip 7, the pulse being fed to a controller 6. The control may be used in a metal strip finishing and surface treatment plant.
Patent GB-1007832-A (GB)
Title: Improvements in or relating to electromagnetic current-responsive tripping devices
Inventor: HAMMOND ROYSTON ALFRED
IPC: H01H71/32
Filed: 1960-12-21
Abstract: 1,007,832. Signalling by visible signals. ENGLISH ELECTRIC CO Ltd. Dec. 21, 1961 [Dec. 21, 1960], No. 43852/60. Heading G4F. [Also in Division H2] A reverse current indicating device particularly for a mercury arc rectifier has a conductor loop 1 mounted on the ends of phosphor bronze springs 3 secured to terminals 4. The loop 1 passes between the poles of permanent magnets 2 and normal current flow urges the loop against a setting screw 7, but reverse current flow (direction A) causes the loop to move in direction B so that an extension latch 5 releases a spring-loaded flag 6. A screw 8 can be adjusted to pre-tension one of the springs 3. The springs may be shunted by copper strips and a shunt may be connected across the terminals 4.
Patent GB-1524243-A (GB)
Title: Method of inserting an aperture mask support pin into a viewing panel for a cathode ray tube
IPC: H01J29/07
Filed: 1975-10-28
Abstract: 1524243 Sealing pin to cathode-ray tube CORNING GLASS WORKS 28 Oct 1975 [5 Dec 1974] 44329/75 Heading C1M [Also in Division H5] An aperture mask support pin 18 is sealed into the glass of cathode-ray tube viewing panel 19 by: disposing an end 18a of the pin adjacent the desired location 19a thereof in the panel; disposing iron core 12 adjacent a location 19b substantially precisely opposite location 19a; surrounding core 12 with a high frequency induction coil 10 of flat spiral configuration; supplying high frequency alternating current to coil 10 so that pin 18 is inductively heated to above the softening point of the glass; inserting the pin 18 into the glass 19, which is softened by the hot pin, to a desired depth 18b; and terminating the current and allowing the pin and glass to cool. The iron core 12 may be surrounded by jacket 14 (e.g. of polytetrafluoroethylene), and cooling fluid (e.g. water) passed through the jacket 14 and optionally through the copper tubes 11 from which coil 10 is formed. The energy supplied to pin 18 may be reduced as the pin progresses into the glass. The apparatus used may be modified by use of a double tier coil (Fig. 6, not shown). The pin may be as described in Specification 1,519,037 (such a pin preferably has an expansion coefficient which matches that of the panel glass).
Patent GB-966245-A (GB)
Title: Light scanning system for light tracking system
IPC: G05D3/12
Filed: 1961-12-12
Abstract: 966,245. Dynamo-electric machines. KOLLSMAN INSTRUMENT CORPORATION. Dec. 12, 1961 [Dec. 22, 1960], No. 44373/61. Heading H2A. [Also in Division H4] In a light source tracking system (see Division H4) a plane mirror 13 is supported wholly or in part by piezo-electric or magnetostrictive elements which are energized by A.C. voltages so that the mirror is oscillated sequentially about two orthogonal axes 54, 55 in the plane of the mirror. As shown in side elevation in Fig. 4 and in the exploded perspective views of Figs. 2 and 6, the mirror 13, Fig. 2, has affixed to its reverse side symmetrically relative to the axes of oscillation 54, 55, four brackets 25, 26, 27, 28, each of which has in an extension parallel to the mirror a pair of opposed depressions in which engage pairs of piezo-electric crystal transducers to support and oscillate the mirror. The two crystals of each pair are connected to an A.C. source of energization such that when one crystal expands longitudinally the other crystal contracts longitudinally. In one scanning cycle the two pairs of transducers 33, 34 and 37, 38, Figs. 2 and 6, are excited in anti-phase relative to the remaining pairs 35, 36 and 39, 40 so oscillating the mirror about axis 54. In the next cycle the excitation is switched, Fig. 7 (not shown), so that 37, 38 and 39, 40 are in anti-phase relative to 33, 34 and 35, 36 for oscillation about axis 55. The piezo-electric transducers may be replaced by magnetostrictive transducers. An alternative mounting for the mirror uses one transducer pair on each axis of oscillation and a pivot at the axes intersection, Figs. 8, 9, 10 (not shown). It is stated that a unitary piezo-electric device may be used in which excitation in first and second modes will cause respective oscillation of the mirror about the two axes. Specifications 946,424, 946,425 and 951,278 are referred to.
Patent GB-965685-A (GB)
Title: Improvements in or relating to electrolytic plating
IPC: B32B15/08
Filed: 1960-10-07
Abstract: A chromium plating bath comprises an aqueous solution of chromic formate, sodium glycollate, sodium fluoride and boric acid. having a pH between 2.7 and 4.5.  Pitting may be eliminated by addition of a C5 to C10 alcohol, e.g. n-octyl alcohol.  In one litre of plating solution the preferred proportions are 0.1-1 gram moles of chromic carboxylate, between 8:1 and 1:8 molar ratio of total formate to total glycollate, 0.6-7 gram moles of sodium carboxylate and carboxylic acid, 0.2-2 gram moles of boric acid, and 0.2-2 gram moles of sodium fluoride.  The boric acid may be added as sodium oxyfluoborate. The baths may be used to plate copper, copper alloys, or nickel using a graphite anode.  The current density may be from 25 to 300 amps. per sq. foot, and temperatures from room temperature to 90  DEG C. may be used.
Patent GB-1243686-A (GB)
Title: Improvements in or relating to electrical socket connectors especially for domestic appliances
IPC: H01R13/64
Filed: 1968-09-19
Abstract: 1,243,686. Two-part couplings. CROUZET 19 Sept., 1968 [26 Sept., 1967], No. 44477/68. Heading H2E. An electric connector comprises an insulating support 1 carrying flat male contacts 2 in electrical contact with metallic strips 4 and which are separated from each other by vertical members la which also serve as guides for resilient female contacts 5. Each male contact is engageable by any one of a series of female contacts of different widths, and is of a width equal to the width of that female contact of the series which is smallest in width, the members la being spaced apart by a distance slightly greater than the width of that female contact of the series which is largest in width. Each female contact comprises a flat plate and comes into contact with each male contact over the entire width of its densal face and by means of lips 5b extending one from each edge of the plate.
Patent GB-1074139-A (GB)
Title: Improvements in or relating to a method for machining through intermittent pulse-controlled electric discharges
IPC: B23H1/02
Filed: 1964-11-03
Abstract: 1,074,139. Electro-erosion. ATELIERS DES CHARMILLES S.A. Nov. 3, 1964. [Feb. 25, 1964], No. 44704/04. Heading B3V. [Also in Division H3] In an electro - erosion process wherein the electric discharges between electrode E and workpiece P are initiated by voltage pulses higher than the discharge voltage and there is a varying delay period between the application of the pulse and start of the discharge, each pulse has a duration which increases as a function of the said delay. This is effected by cutting-off each discharge after a predetermined duration. In one embodiment, Fig. 4, banks of parallel transistors such as T 1 , T 2  are triggered to produce pulses from voltage supply S to the spark gap between E and P; a variable resistance R 5  controls the amplitude of the pulses. After a variable delay such as t 1 -t 2 , Fig. 3f (not shown), a spark discharge takes place and the resulting current causes a voltage signal to appear across R 1 . This signal is passed to a Schmidt trigger 2 whose output is fed through differentiating circuit C 2 , R 11  and diode D 1  to a first monostable multivibrator 3 whose output in turn passes through a further differentiating circuit C 4 , R 16  and diode D 2  to a second monostable multivibrator 4. This produces stable pulses of varying duration corresponding to the required voltage pulses, which are applied through transistor amplifier T 9  to the bases of the pulse control transistors T 1 , T 2 . In another embodiment, Fig. 5 (not shown), the start of the discharge is detected by the voltage drop across a resistor coupled in shunt with the spark gap. Pulses are controlled by a semi-conductor type switch which receives " on " and " off " control pulses respectively from the multivibrators 3, 4. In a further embodiment, Fig. 6 (not shown), the main current supply is rectified three-phase A.C. supplied through inductors such as L 5 , and a separate supply S 3  controlled by a transistor T 10  is used for initiating the spark pulses. This transistor is controlled by a circuit as described above. The pulse is terminated by producing a short-circuit across the spark gap through parallel transistors T 11 - T 13  controlled by the multivibrator 3. Vacuum or gas-filled tubes may be used instead of transistors for producing the pulses. A transformer connected with its primary in the discharge circuit may also be used to detect the flow of discharge current.
Patent GB-1372252-A (GB)
Title: Apparatus for removing solder connections
IPC: B23K1/018
Filed: 1971-09-24
Abstract: 1372252 Soldering J A GEIER 24 Sept 1971 [25 Sept 1970] 44738/71 Heading B3R A tool for unsoldering electronic circuitry connections by melting and suction collecting or melting and blow dispensing of the solder comprises a grip postion, a heater element forward of the grip portion, a hollow barrel to the rear of the grip portion, a hollow heater tip projecting forward from the heater element, its bore continuing in a straight small tube into the barrel, and a second tube extending out of the barrel for connection to air under positive or negative pressure for blowing air out of or sucking air in through the hollow tip, means inside the barrel such that when air is sucked through the tip it flows through an opening of smaller cross section than the barrel into the second tube, the opening being laterally offset relatively to the small tube so that air is forced to undergo a lateral deviation in flowing from the small tube, the-barrel including a rear solder collecting pocket so that solder droplets are collected in the pocket. In one embodiment the tool, Fig. 1, has a hub 11 for hand holding, a cylindrical electrical resistance heater 12 extending forwardly of the hub, in which the hollow tip 13 is held and a cylindrical barrel 14 extending rearwardly of the hub. The rear end of the barrel is closed off by an end cap 16 which holds a cranked tube 17 for connection to an outside air source and a straight tube 20<SP>1</SP> extends from the tip 13 to adjacent the end 21<SP>1</SP> of the tube 17. In use with a vacuum applied to the tube 17 molten solder is drawn through the tip 13 and through the tube 20<SP>1</SP>, the air moving towards the end of the tube 17 and the solder droplets moving on to the rear of the barrel 14, accumulating at 22. Molten solder adheres to the rear of the barrel but other solid matter collects near the forward end at 23. A disposable heat resistant liner 24 in the barrel prevents solder adhering to the barrel wall. In a modification the tube 20<SP>11</SP> Fig. 2 extending from the tip 13 is shortened and extends into a cylindrical filter 27. A conduit 29 closable by a finger is provided in the hub 11 to control the suction action at the tip 13. In another embodiment a heater 52, Fig. 3, extends forwardly from a hub 51 and a barrel 53 extends rearwardly from the hub, the air connection being at 54. A filter 78 within the barrel 53 is pressed by a spring 79 against a silicone rubber plug 81 and the tube 74 extending from the tip 72 enters the filter. One end of a short tube 84 enters the hub 51 and communicates at its other end with a tube 85, 86, the portion 85 being connected to an air hose 87 and the portion 86 being coverable by a finger. The device of Fig. 5 may be used in five modes, (a) heating without air flow (b) hot air jet (c) cold air jet (d) hot air suction and (e) cold air suction. Other air control devices may replace the tube 84, 85, 86.
Patent GB-448843-A (GB)
Abstract: 448,843. Buckles. WALKER, Ltd., T., WALKER, G. T., and WOOD, H. H., Birmingham Buckle Works, St. Paul's Square, Buckingham. Dec. 31, 1935, No. 8841/36. Divided out of 447,297. [Class 43] The hinged tongue plate 6 of a buckle has a serrated front edge 8, and one or more bent or pressed up prongs 9, which overlap the front bar 5 of the buckle frame, the edge 8 serving as a stop for the belt, band or the like. The tongue plate may have its inner end curled round the frame to form a bearing sleeve 7, fitting closely between similar sleeves 4 of a hinged belt attachment plate 2, or, in a modification, Fig. 3 (not shown), lateral trunnions on the inner end of the tongue plate may be borne in bearing eyes curled up from a plate integral with the buckle frame and the attachment plate. The buckle may be used with a leather belt having holes pierced for the prong or prongs.
Patent GB-1314715-A (GB)
Title: Electrical connector having adjustable keying
IPC: H01R13/645
Filed: 1970-09-21
Abstract: 1314715 Two-part couplings BUNKERBAMO CORP 21 Sept 1970 [15 Oct 1969] 44914/70 Heading H2E An electrical connector comprises a plug 110, Fig. 3, having female contacts 114 and a socket 10, Fig. 1, having male contacts 14, the plug- and-socket being coupled together by bayonet pins 24 on the socket 10 and bayonet slots 124 on a coupling ring 125 on the plug 110. Fixed keys 128 on the plug 110 locate in keyways 28 in the socket 10 in which is mounted an 0-ring 22 to provide sealing with the end of the plug shell 112, and slotted springs 129 on the plug shell provide electrical continuity between the plug shell 112 and the socket shell 12. Adjustable polarizing means are provided on the plug- and-socket. The socket is provided with a number of keyways 30 all but one of which may be closed by keyway plugs 32 each of which is of dovetail shape and has a spring clip 33 which engages a groove 34 in the socket shell 12. A keyway plug 32 may be released by a screwdriver passed under it to push the spring clip 33 out of engagement with the groove 34. In a groove 138 in the plug shell 112 there is mounted a resilient band 137 carrying a key 130 and a lug 139. The lug 139 fits in one of a number of slots 141 in the plug shell so that the key 130 is aligned with the unplugged keyway 30. The band 137 may be rotated to align the key with the unplugged keyway of a different connector. Any number of keyways 30 may be left unplugged.
Patent GB-452787-A (GB)
Abstract: 452,787. Calculating-apparatus. NATIONAL CASH REGISTER CO., Dayton, Ohio, U.S.A. Feb. 28, 1935, No. 6377. Convention date, Feb. 28, 1934. [Class 106 (i)] In a machine with a travelling paper carriage and with means for automatically releasing the machine under control of pawls on the carriage for the purpose of repeating an amount on the keys in predetermined columnar positions means are provided to disable the pawls during the return movement of the carriage to home position and to maintain the pawls in ineffective position until restored under control of a manually operable lever. The invention is shown applied to a machine of the Ellis type as described in Specifications 28253/08, [Class 106], and 348,105. The travelling carriage has a bar 22, Figs. 1 and 2, on which is mounted the usual totalizer selecting stops 16 and to which is secured a plate 21 carrying spring- controlled pawls 4 normally held in contact with studs 28. In the movement of the carriage from right to left, the pawls co-operate with a roller 5 on a lever 6, Figs. 1 and 4, thereby rocking the lever and causing a roller 7 on its lower end to rock the arm 9 of the three-armed release lever 10 associated with the usual release plate 48. Mounted on the plate 21 is a slotted slide 23 maintained in the position shown in Fig. 1, by means of a spring 39 and ha ving a set of pins 26 each in contact with a projection on the associated pawl 4. A projection 41 on the slide carries a roller 42 that engages the upper end of a lever 43 pivoted on the carriage. The slide has a notch 35 adapted to co-operate with a projection 34 on a pawl 32 pivoted to the plate 21. Another projection 31 on the pawl co-operates with a cam surface 30 on a manually operable lever 40 pivoted on the carriage. During the carriage return movement the lower arm 45 of the lever 43 engages a roller 46 on the casing and causes the lever to displace the slide 23 to such an extent that the notch 35 is held by the pawl 32 and the pins 26 rock the pawls to ineffective position out of the plane of the roller 5. The machine can then only be released by depression of the start bar 47 ; to re-establish automatic release the lever 40 is manipulated to disengage the pawl 32 to permit the slide to return under spring action. The locking lever 53 for the plate 48 which is adapted to be disabled in the known manner under control of the selector stops 16 or control keys is disabled also by a lever 51 under control of the roller 7 on the lever 6. Specification 424,149, [Group XVI], also is referred to.
Patent GB-1405142-A (GB)
Title: Apparatus for the instruction of finger spacing in playing stringed instruments
IPC: G09B15/06
Filed: 1972-10-02
Abstract: 1405142 Mechanical switches B KAPLAN 2 Oct 1972 [3 Nov 1971] 45372/72 Heading H1N [Also in Division G5] A switch to be held between the thumb and forefinger of a violinist to detect incorrect relative positioning thereof comprises a foil lined collapsible cylinder 22 surrounding a wire 30 wound on an insulating support 28. Support 28 and wire 30 may be replaced by an aluminium rod.
Patent GB-1159594-A (GB)
Title: Automobile Safety Device having Roof Reinforcing Bar
Inventor: JETTE EMILE JR
IPC: B60R21/13
Filed: 1966-10-11
Abstract: 1,159,594. Protecting guards. E. JETTE. 11 Oct., 1966, No. 45484/66. Heading B7B. An inverted U-shaped bar 36 moves upwardly to abut the underside of the roof to support it in the event of an impact. The limbs 32, 34 are held retracted against compression springs in the tubular members 28, 30 by detents 42, 44 which are withdrawn on impact by the completion of the circuit through the solenoid 78. The bar 36 may be further supported by cross-bars 50, 52, the lower ends of which engage recesses in the intermediate support 26 when the bar 36 is fully raised. Spring-urged pins 46, 48 also engage recesses in the limbs 32, 34 to retain the bar 36 in the raised position.
Patent GB-1111646-A (GB)
Title: Improvements in or relating to amplitude modulating circuit arrangements
IPC: H03C1/54
Filed: 1965-10-29
Abstract: 1,111,646. Amplitude modulating systems; pulse modulation systems. TELEFUNKEN PATENTVERWERTUNGS G.m.b.H. 29 Oct., 1965 [29 Oct., 1964], No. 45979/65. Headings H3R and H4L. [Also in Division H2] An inverter circuit comprising a first pair of transistors S1 and S2 of opposite conductivity types and a second similar pair S3 and S4 arranged in a bridge circuit with a D.C. source U connected across one diagonal and an output circuit RLC series resonant at the switching frequency connected across the other diagonal either directly, Fig. 1, or through a transformer (Tr, Fig. 2, not shown), protective diodes G1-G4 being connected across each transistor, is used to provide an amplitude modulated sine wave output in response to relatively phase-modulated square wave control pulses. The relationship between the amplitude of the output and the relative phases of the two square waves applied respectively at A1 and B1 to the two pairs of transistors is sinusoidal, and this is taken into account when preparing the control pulses. Pulse modulation systems.-The output of a carrier wave oscillator O, Fig. 4, is phase shifted and rectified to provide two anti-phase negative half-wave signals to which the modulating signal M is added in units AN1 and AN2. The peak value of the modulating signal does not exceed half the amplitude of the oscillator output signal. The outputs of AN1 and AN2 feed respective trigger circuits T1 and T2 which have a threshold equal to half the amplitude of the half-wave unmodulated signals. The width of the pulse outputs of T1 and T2 depend on the instantaneous amplitude of the modulating signal, and these pulses are differentiated in units D1 and D2. The pulses corresponding to the leading edges of the outputs of T1 and T2 are fed through rectifiers R3 and R5 to a bistable circuit K1 which produces one square wave output at A1. The pulses corresponding to the trailing edges are fed through rectifiers R4 and R6 and inverters U1 and U2 to a second bi-stable circuit K2 which provides the second square wave output at B1, the relative phases of the two square waves depending on the modulation.
Patent GB-1066120-A (GB)
Title: Improvements in electrical machines
IPC: H02K5/167
Filed: 1965-11-01
Abstract: 1,066,120. Bearings. R. BOSCH G.m.b.H. Nov. 1, 1965 [Nov. 27, 1964], No. 46106/65. Heading F2A. [Also in Division H2] In a dynamo-electric machine having a rotor shaft projecting at one end from the machine housing, axial displacement of the shaft being limited by two stops on it co-operating with a bearing bush mounted on the housing at that end, one stop being inside, and the other outside, the housing, the invention is directed to the construction of the outer stop. This consists of an annular disc fitted on a section of the shaft formed with a plurality of adjacent transverse grooves, the disc having a thin annular axial flange extending from its side remote from the housing, and over which is pressed a steel ring adapted to secure the annular disc against axial displacement of the shaft.
Patent GB-1445868-A (GB)
Title: Combined product hanger and label supports
IPC: A47F5/00
Filed: 1973-10-04
Abstract: 1445868 Displaying articles STOBA AG 4 Oct 1973 46343/73 Heading A4T [Also in Division E2]  A device for labelling and suspending an article e.g. a bunch of bananas, comprises a label support 1 having means 3 to hook over a support such as a rod, from which the article is to hang, and resilient means 4, 5 for engaging the article. The gap a is less than the diameter of the rod to prevent the device becoming detached. Hollow locating means 2 or ribs (8) Fig. 3 (not shown) enable a stack of the devices to be formed in a dispenser from which they may be removed seriatim by a gripper (not shown). The element 5 may have a curved projection lying within the bend of the element 4, (Fig. 3).
Patent GB-1220680-A (GB)
Title: Improvements relating to data transmission systems
Inventor: DRINNAN JAMES WALTER
IPC: H04Q11/04
Filed: 1967-10-11
Abstract: 1,220,680. Shift registers. AUTOMATIC TELEPHONE & ELECTRIC CO. Ltd. 30 Sept., 1968, No. 46371/67. Heading G4C. A shift register for serial-parallel or parallelserial conversion has an n x n matric of bistables and two mutually-exclusive operations viz (1) bits are shifted concurrently into each column of the matrix from a respective input line, the previously stored bits in each column being at the same time shifted out to a respective output line, (2) as (1) replacing " column " by " row ", the input and output lines being common to the two modes. The two operations are used alternately.