baber/WOPTO huggingface dataset:
Patent GB-624418-A (GB)
Title: Improvements relating to electrical connectors
IPC: H01R4/24
Filed: 1946-10-16
Abstract: 624,418. Two-part couplings with switches. RAKOS, A. Oct. 16, 1946, No. 27222/45. [Class 38 (i)] [Also in Group XXXVII] A connector comprises the separable parts 1, 2, 3, the part 2 having sockets 13, 14 which are associated with offset needle points 19 which engage conductors positioned in the tapering grooves 7<SP>1</SP> in the part 1 when the body parts are assembled, and a single-pole switch 21 housed in parts 2, 3. The switch is formed by a shorting strip 22 which bridges the contacts 24, 26 on the socket 14 and the needle point 19 respectively, Fig. 4. Projections 10, entering recesses 9, guide the points 19 into the correct connection with the conductors. In a modification (Fig. 5, not shown), the points are on a central axis. Alternatively, each point is mounted to enter the conductors from opposite sides. The Specification also describes a form of connector comprising two separate units, one for each conductor. The parts 1, 2 may be hinged together.
Patent GB-802789-A (GB)
Title: Improvements in and relating to the grooving of the end faces of boards or beams and the application of glue thereto
IPC: B27G11/00
Filed: 1956-09-05
Abstract: Apparatus for grooving and applying glue to the end faces of boards comprises means for clamping a series of boards one against the other on a carriage 3, Fig. 1, which is reciprocated past grooving devices 12, 121 (see Group XXIII) and glue-applying means 14, 141 disposed on opposite sides of the carriage. The carriage 3, which is reciprocated on a pair of rails 1, 2, is provided with rams 5, 51, 11, 111 for clamping a series of boards thereon, and a conveying device 6 for urging the boards in one direction or the other against either of two stops 7, 71.  In the outward direction of movement of the carriage, the boards, having been urged against the stop 7 by the conveying device 6, are moved past a saw-blade 9, grooving cutter 13 and the glueapplying device 14; for the return movement, the boards are urged against the stop 71 and the devices 81, 121, 141 are operative.  Both glueapplying devices are controlled by photo-electric means, or a switch or stop 15 actuated by the moving boards so that glue is applied only to the end faces of the boards.  The means for applying glue comprises a vertical series of nozzles 19, Fig. 2, which are fed from a pressurized vessel 16 and controlled by the movement of a piston 21 actuated by a control cylinder <PICT:0802789/III/1> 22. The actuation of the switch 15 by the moving boards serves to open a valve which causes the piston 21 to rise to the limit fixed by a stop 23, which is set to correspond with the height of the boards.  When the switch is released, the valve closes to lower the piston and stop the supply of glue to the nozzles.  If a rapidly-hardening glue is employed in the device 14, the device 141 may supply a hardener.
Patent GB-970870-A (GB)
Title: Improvements in and relating to magnetic devices
Inventor: CLIFF DONOVAN FARRANT
IPC: G11B5/187
Filed: 1961-07-27
Abstract: 970,870. Making magnetic heads. COSMOCORD Ltd. July 27, 1962 [July 27, 1961], No. 27239/61. Heading B3A. [Also in Division G5] A quarter-track type magnetic tape-recording &c. head has the transducing portions of the heads defined in track-width and in track-totrack spacing by assembling overwide head units 1, 2 in a stack, which may include an interhead screen 4, and gang-milling shallow grooves 13-16 such that the faces 5, 6 of the heads, adjacent the tape 7 are left with the desired width W 1 , W 2 , track-to-track space S 1  and desired margins, S 2  S 3 , relative to the ends of the stack. The grooves 13-16 are filled with epoxy resin and the tape-contacting face polished in normal manner. The method (with only two grooves) may also be used to make single-track heads, and more generally to magnetic devices requiring precise polar dimensions.
Patent GB-378248-A (GB)
Title: Improvements in or relating to rotary printing machines
IPC: B65H9/06
Filed: 1931-10-01
Abstract: 378,248. Printing-machines. BELL, W., 2, South Terrace, Barwick-in-Elmet, near Leeds. Oct. 1, 1931, No. 27346. [Classes 100 (i) and 100 (ii).] Rotary offset machines ; sheet-registering devices ; sheet guides.-In a rotary machine of the kind in which an impression cylinder 7 co-operates with a printing-cylinder 5 of equal size, e.g. an offset cylinder receiving a design from a plate cylinder 1, the sheets are fed in overlapped condition to front stops 16 which normally project from below above the feed board 15 and act to register each sheet before the prior sheet has been withdrawn completely from the board, thus permitting longer sheets to be printed by a cylinder of given diameter than can be printed on known machines. The sheets are acted on by side-registering devices of known kind comprising a reciprocating bar 24 flush with the board 15 and an oscillating shaft 25 fitted with a lever 26 provided with a fibre runner 27 and a stop which is integral with the lever 26. The stops 26 are mounted on a shaft 17 fitted with a spring-controlled bellcrank lever 19 to keep the stops normally raised, and the stops are depressed by the action of a cam on the impression cylinder upon a roller 20 on the lever 19. Other forms of front stop and methods of actuation may be used, but the complete registering operation is adapted to occupy approximately one-quarter of a machine cycle. The cam on the cylinder 7 permits the return of the stops immediately the oscillating grippers 10 have engaged a sheet, and the stops act on the next sheet before the complete withdraw of the active sheet by the grippers 10. A guide 13 prevents engagement of the sheet with the plate cylinder 1, and the cylinders 1, 7 are arranged close together as shown so as to give the maximum time for tripping the cylinder 5 in the event of failure of the feed.
Patent GB-964908-A (GB)
Title: Improvements in or relating to the crimping of yarn
Inventor: IWNICKI KURT
IPC: D02G1/12
Filed: 1961-07-28
Abstract: 964, 908. Spinning. BRITISH NYLON SPINNERS Ltd. July 23, 1962 [July 28, 1961], No. 27349/61. Headings DID and D1F. In a process for continuously crimping nylon or polyester yarn in a stuffer-box to and from which the yarn is forwarded and withdrawn at constant speeds, a variable tension is imparted to the withdrawn crimped yarn by a tensioning device located between (and separate from) the crimper and the means for withdrawing the yarn. The tension is dependent on the amount of yarn within the crimper and is varied to compensate for any changes in such amount as may be detected by a sensing member. The regulation may be effected by two set tensions-one higher, and the other lower, than the mean tension calculated to maintain the amount of yarn within the crimper constant. Tension may be imparted by an adjustable "gate", magnetic hysteresis brake, or by a pulley wheel connected to one side of a magnetic particle brake having two " settings" for its voltage supply, corresponding to high and low yarn tensions and having its other side held stationary. The sensing member may be a hinged flap movement of which, in response to changes in the amount of yarn in the crimper, actuates a microswitch which controls a solenoid operating the tensioner or correctively adjusts tension through a direct mechanical linkage: alternatively, means (not shown) depending on photo-electric or dielectric variation of electrical circuits may be employed. As shown in Fig. 1, yarn Y is fed by nip rolls 1 through a crimping chamber 3 and setting chamber 5 (heated by electrical resistances in an insulated jacket 7) and variation in the level of compressed yarn in chamber 5 operates an adjustable, weighted flap 9 to close or open a microswitch 15 and so energize or deenergize a solenoid 17 to adjust correctively a tensioner 19 through which passes yarn being withdrawn from chamber 5 by wind-up rollers 21. As shown in Fig. 2, variation in level of yarn in chamber 5 is sensed by a plunger 35 movement of which causes a flange 37 to operate an arm 39 of a' switch 15 controlling a solenoid 17 to correctively actuate a hysteresis tensioner 43. In a modification of the apparatus of Fig. 1, the chamber 5, with jacket 7 attached, is flexibly mounted for limited movement in its lengthwise direction relative to the fixed chamber 3 and movement of the chamber is used as the means, operative according to the required correction through a micro-switch which selects voltages from a two-tapping transformer and applies them via a rectifier to a magnetic particle brake, for controlling tension in the withdrawn yarn, Figs. 3 and 4 (not shown). Specifications 963, 710, 964,909 and 964, 910 are referred to.
Patent GB-1378197-A (GB)
Title: Frequency response analyser
IPC: G01R27/32
Filed: 1972-06-12
Abstract: 1378197 Measuring transfer characteristics SOLARTRON ELECTRONIC GROUP Ltd 12 June 1973 [12 June 1972] 27409/72 Heading G1U The transfer characteristic of a system 10 under test, is determined by applying a cyclic test signal, digitally synthesized, to it, and by multiplying, integrating, and displaying, the resulting output signal from the system under test by sine and cosine signals of the same frequency as the cyclic test signal, the multiplication and integration being performed digitally. As described a 1Mc/s clock 12 drives known devices 13, 14, 16, 18, 24, which produce a sinusoidal test signal of a discretely selectable frequency is converted by a further known arrangement 34, 34a into a pulse train, on a lead 34b, having an instantaneous frequency linearly proportional to the modulus of the instantaneous amplitude of the output signal from the system under test, together with a signal on one of leads 34c, 34d, indicating the sign of the output signal. These pulses, 34b, algebraically gate sine and cosine values, in digital form from read only memories (ROM) 42, 44, into accumulators 47, 48, each comprising an adder and a circulating shift register, and ten second running averages of the resulting totals are displayed 50.
Patent GB-1128559-A (GB)
Title: Bowden cables
Inventor: MANNING WALTER
IPC: F16C1/10
Filed: 1967-06-14
Abstract: 1,128,559. Bowden mechanisms. FORD MOTOR CO. Ltd. 14 June, 1967 ,No. 27420/67. Addition to 1,092,979. Heading F2K. In a Bowden mechanism, bellows 7, 8 provide a seal between abutments 3, 5 and 4, 6 on the ends of the core 1 and sheath 2 to render the space between the core and sheath fluid-tight. A gas or liquid under pressure within this space acts on the abutments to keep the core 1 in tension and the sheath 2 in compression. A valve 9 on one abutment 5 allows the space to be pressurized by gas or liquid.
Patent GB-1098072-A (GB)
Title: Trawl gear
Inventor: CREWE PETER ROWLAND
IPC: A01K73/045
Filed: 1963-07-10
Abstract: 1,098,072. Trawl gear. WHITE FISH AUTHORITY. Oct. 9, 1964 [July 10, 1963], No. 27424/63. Heading A1A. An otterboard has a leading board 1 connected to a trailing board 2 at diagonally opposite points by a linkage 6 whereby tendency for one board to heel over in one direction transmits a force tending to heel over the other board in the opposite direction.
Patent GB-1171300-A (GB)
Title: Electric Switch
IPC: H01H71/20
Filed: 1966-09-13
Abstract: 1,171,300. Automatic circuit-breakers; snapaction mechanism. ALLEN-BRADLEY CO. 13 Sept., 1966 [20 Sept., 1965], No. 27432/69. Divided out of 1,171,297. Heading H1N. In an automatic circuit breaker the manual actuation and reset mechanism comprises a pair of push buttons 87, 88, Fig. 4, in a casing 6 for attachment to the contact casing and operating to rock a pivoted member 64 connected by a pair of coil springs 70 to the knee pin 72 of toggle links 65, 66 which are connected to the contact carrier at pin 67. In the " on " position (shown) the knee pin 72 is restrained to the right against a lever 96 normally held fixed by the automatic circuit-breaker mechanism. In moving to the "off" position, Fig. 6a, the spring 70 moves over-centre of pin 68 and pulls the pin 72 to the left whereby the links 65, 66 snap upwards to retract the switch contact carrier 3 assisted by carrier return spring units (52, Fig. 1, not shown). A snap-action return reinforced by spring-straining is obtained, when switching on, by means of a spring-loaded lever 75, 78 having an end 77 which latches the knee pin 72 in the " off " position and restrains the return movement until the force in the springs 70 is substantial. Should the springs 70 fail, manual retraction of the contacts is obtained by engagement of a leaf spring 94 on the actuator 64 with the toggle links 65 whereby they are forcibly moved to the left to raise the knee-pin 72. Overload current circuit breaking mechanism operating through relay actuator arm 101 and pin 98a to release trip lever 96 supporting the links 65, 66 is described in Specification 1,171,299.
Patent GB-1136708-A (GB)
Title: Structure for securing the ends of a troughing roll assembly of an endless conveyor
IPC: B65G21/04
Filed: 1967-06-14
Abstract: 1,136,708. Endless belt conveyers. PRECISMECA S.A. 14 June, 1967 [5 July, 1966; 20 July, 1966; 6 Feb., 1967], No. 27497/67. Heading B8A. Troughing roll assemblies for a conveyer belt 101 are vertically adjustable on threaded rods 112 which are secured to wire side ropes 118. Supports 106, 107 have apertures 111 through which the rods 112 pass, and nuts 113, 114 adjustably secure the supports. Sleeves 117 protect the rods 112 from damage by material over-flowing from the belt 101. Each rod is secured to the side rope 118 by a shoe 125 engaged by a screw 124 which also engages a threaded aperture in a hook member 121. A link 127 between the hook 121 and the shoe 125 prevents rotation of the latter when the screw 124 is rotated.
Patent GB-389162-A (GB)
Title: Improvements in and relating to electro-thermionic time delay apparatus
IPC: H03K17/28
Filed: 1931-10-03
Abstract: 389,162. Valve circuits. BRITISH THOMSON-HOUSTON CO., Ltd., Crown House, Aldwych, London.-(Assignees of Thomas, H. P.; 1061, Glenwood Boulevard, Schenectady, New York, U.S.A.) Oct. 3, 1931, No. 27522. Convention date, Oct. 3, 1930. [Class 40 (v).] In a thermionic delay device, the delav in the operation of a relay controlled by the anode current of a thermionic valve is produced by the discharge of an energystoring device such as a condenser connected between the anode and an auxiliary electrode, the relay being connected in the circuit of an auxiliary electron discharge device the grid of which is controlled bv the anode current of the main valve to produce time-delayed operation of the relay. As shown in the Figure, the relay coil 16 is connected to the anode of a three-electrode discharge device 17 which may be filled with mercury vapour, the grid of which is connected through a resistance to the anode 2 of a screenedgrid valve 1. Between the anode 2 of the latter and the screening grid 5 is connected a condenser 18 in series with a resistance 14 and when the switch 15 is closed a P.D. exists across the condenser 18 which is connected to two points of differing potential on the potentiometer 12, fed through a rectifying valve 10 from the transformer secondary 12, the right-hand electrode of condenser 18 being positive with respect to the left-hand electrode. Sufficient current flows through the anode and through resistance 14 to maintain the grid of the discharge device 17 negative and prevent flow of current through the relay winding 16, the relay remaining unenergized. When the switch is opened, however, the potential on the anode 2 is maintained by the condenser 18 but any electrons which flow from the cathode 3 to the .anode 2 store themselves in the positive electrode of the condenser 18 thereby causing this electrode to become gradually less positive until it reaches the potential of the opposite electrode. Thus the condenser becomes gradually discharged and after the lapse of a time period the anode current suddenly falls to a verv small value. A potential in accordance with this value is impressed on the grid of the discharge device 17, so that after the lapse of the time period anode current flows in the discharge device 17 and operates the relay 16. It is stated that a time period of 30 minutes or more can readily be produced between the opening of switch 15 and the operation of relay 16, the discharge of the condenser being at a constant rate throughout the greater portion of this period. Instead of a screened-grid valve other types of electron discharge devices may be employed, the principal function of the control grid being to limit 'the amount of current from the cathode to the anode and screening grid. This result may be accomplished in other ways, for example, by reduction of the filament emission.
Patent GB-1170008-A (GB)
Title: Floating Ring Seal for a Shaft
Inventor: BAUMANN HANS
IPC: F04D29/12
Filed: 1967-06-15
Abstract: 1,170,008. Shaft seals. BROWN, BOVERI & CO. Ltd. 15 June, 1967 [17 June, 1966], No. 27589/67. Heading F2B. A floating ring 2 is arranged to accommodate, radial movements of a shaft 1 and operate under the influence of a gas or liquid barrier medium supplied through a passage 7 so as to be urged axially towards a housing 10, a resiliently-mounted member 12 being provided to apply counteracting forces to the ring and reduce the sealing pressure at the face 8. The arrangement reduces friction at the face 8 so as to allow radial movement at high pressures. If desired, the whole of the axial thrust at the face 8 may be absorbed to permit leakage of barrier medium across the face 8. A bead 11 provided on the ring deflects the member 12 as the face 8 approaches the housing; alternatively, the bead may be provided on a flexible portion of the ring itself and the member 12 omitted. In another embodiment, Fig. 4 (not shown), the axial thrust is absorbed by compression springs (17) disposed in either the housing or ring and the radial movements of the ring are assisted by roller bearings (18).
Patent GB-201080-A (GB)
Title: An improved change speed gear
IPC: F16H3/42
Filed: 1922-10-11
Abstract: 201,080. Stefani, C. Oct. 11, 1922. Variable-speed gearing.-Continuously-variable toothed gearing comprises two conical toothed wheels r, r<1> coacting with a pinion i movable upon its shaft o<11> to vary the speed. The cones r, r<1>, which are connected by bevel gearing a, b, c to a transmission shaft b<1>, are toothed along their whole length around substantially one-half only of their peripheral surface. Thus one cone is always in action. The teeth of the pinion i are preferably of the diamond-shape shown in Fig. 5. Specification 7989/10 is referred to.
Patent GB-831456-A (GB)
Title: Paper carrier bags
Inventor: BARKER GEORGE HENRY
IPC: B65D5/462
Filed: 1957-09-02
Abstract: 831,456. Paper bags. BENNETT BROS. Ltd. March 12, 1958 [Sept. 2, 1957], No. 27610/57. Class 94(2). A gussetted paper bag a has finger slots m in the two upper edges and a cooperating slot f in a closure flap d, the slot f being provided with hinged flap members g, h along the lower and upper edges of the slot to protect the fingers when carrying the bag. Stiffeners c, e are provided in the region of the slots.
Patent GB-783142-A (GB)
Title: Improvements in or relating to a propeller agitator for mixing materials and a method for using same in liquefying aqueous gelatine
IPC: B01F15/00
Filed: 1955-09-28
Abstract: 783,142. Mixing machines. KODAK, Ltd. Sept. 28, 1955 [Sept. 29, 1954], No. 27612/55. Class 86 [Also in Group VI] A rotary agitator comprises a substantially helically-shaped agitator blade the leading edge of which has a curve conforming to the formula r= ¢D X 2.72 [0.4- 0.7] # where r and # are polar co-ordinates and D is the diameter of the hub to which the blade is attached. The agitator shown is two blades 1, 1<SP>1</SP> the leading edges 4, 4<SP>1</SP> of which'are curved according to the formula stated. The leading edge portions may be recessed to accommodate a hard cutting edge material such as high carbon steel, tungsten steel or molybdenum steel. The agitator may be used for cutting up gelatine to assist in liquefying it in a container with heated walls, for mixing plastics, natural and synthetic rubbers, chemical gela-  tinous materials such as silica gel, or food having a high liquid or liquefiable content.
Patent GB-1454129-A (GB)
Title: Emergency arrestors for lift cages or the like
IPC: B66B5/28
Filed: 1974-06-21
Abstract: 1454129 Catch gear BIRTLEY ENG Ltd 10 June 1975 [21 June 1974] 27646/74 Heading B8L An emergency arrestor for a vertically movable lift cage or counterweight or the like 12 comprises a pair of elongate deformable members 4, 5, supporting a cross beam 6 therebetween, the cross beam 6 being positioned just below the normal lower station of the lift cage and upon overrun of the cage 12, the beam 6 takes the cage load and deforms the members 4, 5 in a rolling loop fashion to progressively absorb the kinetic energy of the cage. Each member 4, 5 is made of steel in the form of an inverted U-shape having a short leg 7, 8 to which the cross beam 6 is secured and a long leg 9, 10 which is secured by light duty rivets or bolts 11 to rigid structure 2, 3 of the arrestor. Upon deformation of the members 4, 5 the short arms become longer and the long arms become shorter as they break away from their rivets 11. Two pairs of deformable members with two cross beams may be used. In another embodiment not shown, the deformable members each start off with their two legs approximately the same length whereby during energy absorption, the two legs coupled to the cross beam become longer and extend below the two legs secured to the rigid structure.
Patent GB-277097-A (GB)
Abstract: 277,097. Macfarlane, H. June 8, 1926. Vapours, delivering. - Apparatus for use in testing pipes, drains, and the like comprises a receptacle for the smoke-producing cartridge &c., a reciprocating hand-pump hinged at its end to the receptacle so that the two may be swung parallel for transport and aligned for use, means for ensuring a tight joint when they are so aligned, and a pressure-indicator communicating with the discharge end of the receptacle to indicate pressure above atmospheric in the drain &c. Fig. 2 shows the parts arranged for transport. In the end of the pump barrel remote from the handle B<1> is a screw plug C which can be operated by means of wings C<2> so that a flange C<1> is forced tightly on to the end of the barrel. In the plug C is a bore housing the stem of a non- return valve D which is pressed against the external face of the plug by a spring. Loosely mounted on the barrel is a sleeve E retained near the end of the barrel by a collar Ax and having a flange E' carrying three inwardly-projecting jaws E<2>. When the barrel and receptacle are aligned. the jaws E<2> are passed through gaps in a flange H<1> on the pump barrel and the sleeve is rotated so that the jaws ride over inclined cam surfaces on the flange H<1> and force the ends of the pump and receptacle together. In the receptacle X is a removable liner J, Fig. 3, for containing the smoke-producing substance or cartridge. This liner J has a fiared top edge and at its lower end and is slit to form tongues which are bent inwards to support the cartridge &c. Surrounding and spaced from the receptacle is a perforated metal sheath to prevent burning the operator's hand. Laterally projecting from the discharge nozzle is a nipple N which is fitted with a screw plug N<1> but may when required have attached to it a bladder such as a toy balloon to serve as a pressure indicator. The receptacle may be provided with a hinged foot plate O. P to facilitate Dumping. Specification 224,315, [Class 99 (ii), Pipes, tubes, &c.], is referred to.