baber/WOPTO huggingface dataset:
Patent GB-1489935-A (GB)
Title: Apparatus for making flexible bands from wire
IPC: B21C37/02
Filed: 1974-12-24
Abstract: 1489935 Making watch straps; shearing EVINGER CORP 24 Dec 1974 [28 Jan 1974 (2)] 55805/74 Headings B3A B3E and B3W Apparatus for making flexible bands from wire having a pair of oppositely opening longitudinal channels with the edges of the channels interengaged comprises a mandrel 60 having an axis 92, a source (40), Fig. 7 (not shown), of wire 12, Fig. 5, having longitudinal channels 21, 23, Fig. 2, a device 44 for presenting the wire to the mandrel with the channels in opposite directions transverse to the axis, a guide 70 for fitting into one of the channels, a device 84 for biasing the guide towards the mandrel, a device (150) for relatively rotating the mandrel and guide about the axis to wind the wire about the mandrel, a device (102) for providing a traverse motion between the guide and mandrel during the relative rotation, and a device (152) for controlling the rates of relative rotation and traverse motion to produce interengagement of the channels of successive turns of wire on the mandrel. The wire passes between shaped blocks 46, 48 of a tension device and thence through a guide 56 before being wound about a blade-shaped mandrel 60. A tilted guide roller 70 is biased against the wire on the mandrel by a spring 84 and a flange 76 engages a channel 21 of the wire. A back-up roller 80 balances the forces on the mandrel and both rollers are brought into contact with the mandrel by releasing a block 180. The rollers are mounted on arms 52, 54 which in turn are mounted on a carriage 102 which can be traversed relative to the mandrel by a cam (128) and linkage (112), (118) arrangement. A variable speed motor 150 rotates the shaft 90 of the mandrel at a precisely controlled rate and a variable speed reducer (152) controls the ratio of the traverse rate of the carriage 102 to the rotation of the mandrel. As the wound wire is removed from the mandrel by the reversing traverse of the carriage, the tubular band 200 so formed enters the receiving tube 202, Fig. 6, of an automatic cut-off unit 204 provided with knives 206 which reciprocate along an axis 208, Fig. 8. A cut-off cam 218 controls the operation of the knives and has transition portions 232, and extended dwell portions 234 to produce a rapid cut which is capable of being accurately timed. Cam 218 has two reflective tape targets 260 which are scanned by a photoelectric scanner 262 which provides a signal to disengage a clutch and apply a brake in a unit (222) so that the cutting may be performed. A timing cam (250) of the apparatus trips a switch (254) to trigger an amplifier (256) and engage the clutch in unit (222) and thus transmits power from a motor (220) to the cam 218. After cutting, the band segments are ejected along air tubes and stamped in a die unit (280) of an hydraulic press. Rolled edges (26), (28), Fig. 3 (not shown), may be impressed on the band by the dies and a design may be impressed on the band surface.
Patent GB-1122120-A (GB)
Title: A device for working a sequential assembly of similar work-pieces
IPC: B23Q16/06
Filed: 1966-12-13
Abstract: 1,122,120. Endless conveyers. LANGENDORF WATCH CO. 13 Dec., 1966 [14 Dec., 1965], No. 55825/66. Heading B8A. Workpiece carriers 6 are carried by an endless chain 1 from a dust-free chamber to a worktable 9, members 7 on the chain 1 being urged by spring-loaded members 36 into registering recesses 12 of a positioning disc 11. The latter is rigid with a sprocket (5), (Fig. 2, not shown) of the chain 1 and a notched plate 14 (Fig. 3). The assembly 11, (5), 14, is rotated intermittently by a motor (21) on the shaft of which is a plate 23 carrying diametrically opposed rollers 24. The latter sequentially engage slots disposed in Maltese Cross fashion in the lower end face of the member 14. Thus each half rotation of the drive shaft of the motor 21 imparts 90 degrees of rotation to the assembly 11, (5), 14. A cam 26 on the motor shaft operates a lever 27 carrying a detent 31 which engages notches 32 in the member 14. This looks three of the carriers positively in position while work is carried out on the respective workpieces. The drive is stopped at the same instant by a cam 33 engaging a microswitch 34. In a modification (Fig. 6), the drive motor (66), (Fig. 5, not shown), carries on its drive shaft an eccentrically mounted pin 68 which is in engagement with a triangular plate 70 the latter carries rollers 73, 74 which co-operate in driving relation with guide surfaces on the underside of a drive sprocket 63. These surfaces are formed by a counterbore 76 in the lower end face of the sprocket 63 and a series of radial slots leading from the bore 76 to the periphery of the end face of the sprocket 63. The latter drives a chain 64 which extends around sprockets 62, 62, carried on extensions of sprockets 53, 54, of the actual workpiece carrier endless chain (51). A cam portion 87 of the plate 70 operates a system of levers (82), (83), (84), (Fig. 4, not shown), which cause pins (57), (69), on each carrier to be positively located in recesses in a fixed circular head (77) around which the chain (51) passes at the working area. The drive is stopped by the action of a microswitch 91 operated by a member on the plate 70. A groove around the head (77) for the passage of connectors between the chain (51) and the carriers is covered over by a freely rotatable plate (92), to prevent workpieces &c. falling into the groove.
Patent GB-1215200-A (GB)
Title: Foraminous printing
Inventor: WEBER ERICH
IPC: B41F15/42
Filed: 1968-11-26
Abstract: 1,215,200. Screen printing apparatus. E. WEBER. 26 Nov., 1968 [29 Nov., 1967], No. 56116/68. Heading B6C. In a screen printing machine the or each printing station comprises a cylindrical rotary screen 1, with its axis horizontal, an impression cylinder 38 with magnets inside it, a squeegee 31 of magnetically attractable material inside the screen 1 and a carrier 34 which brings material to be printed on 33 at each printing station into the nip between screen 1 and cylinder 38. Squeegee 31 may be of metal or of elastic material such as a rubber or a synthetic resin, together with magnetically attractable material. Both squeegee 31 and spring 30 may be divided into sections along the length of screen 1, and the magnets in cylinder 38 may be similarly divided. Ink 11 drops from stationary axle 5 through apertures 12, and is replenished through a hose connection to a reservoir. Preferably the cylinder 38 contains electromagnets. The carrier 34 is, preferably, an endless rubber sheet, and the material to be printed on either a web or a series of sheets.
Patent GB-1127689-A (GB)
Title: Improvements in or relating to electrical switches
IPC: H01H1/16
Filed: 1966-12-16
Abstract: 1,127,689. Snap-action switches. OAK ELECTRO/NETICS CORP. 16 Dec., 1966 [16 Dec., 1965], No. 56362/66. Heading H1N. A rotary switch comprises a plurality of elongated contacts arranged in a ring, a further contact member and a bridging contact engaging the ring of contacts and connected to the further contact, one of the contacted members being thereby flexed to create a reaction urging the bridging contact toward the other contacted member. In one form, Fig. 4, a contact ball 24 engages a central wire contact 25 and selected pairs of wire contacts 20, the ball being mounted in a carrier 30. In a modification (Fig. 5, not shown), detent wires (37) are disposed between the contact wires (36) on an inner ring. The ball may engage a cap (39) on the central wire (Fig. 6, not shown), or a ring contact (57) carried by several wires (Figs. 10, 11, not shown). The central contact may comprise a further ring of wires (46) (Figs. 7 to 9, not shown). Instead of the ball engaging the detent wires (37), the carrier may have notches (70) co-operating with these wires (Fig. 12, not shown), and the switch may be arranged in a sealed housing (Fig. 13, not shown).
Patent GB-1146010-A (GB)
Title: X-ray diffraction apparatus
IPC: G01N23/207
Filed: 1966-12-16
Abstract: 1,146,010. X-ray diffraction apparatus. NIHON DENSHI K. K. Dec.16, 1966 [Dec. 17, 1965], No. 56526/66. Heading G1A. [Also in Division H5] An X-ray diffraction apparatus comprises a goniometer mechanism for intermittently varying the Bragg angle in discrete steps, summation means for summing the radiation detected in a given interval of time at each step and giving an output in analogue form, and a follow-up recorder for giving an indication of the level of summed radiation, the recorder being activated to change in response to an output from the summation means only at predetermined times giving an unchanging indication at all other times, there being means for short circuiting the input to the recorder drive except at said predetermined times. As shown in Fig. 3, a crystal and suitable detector mounted on shafts carrying spur gears 38 and 39 are driven intermittently by a motor (not shown) through gear train 19 to 37, the intermittent motion being generated from the motor turning at uniform speed by means of pin 22a meshing with step gear 25 and advancing it one tooth per revolution. Interacting with gear 25 is a second pin or roller 27a carried on an arm 27 pivoted at 26 and carrying a contact 27b. Each step of gear 25 causes contact 27b to activate micro-switch 28 which causes pulse forming circuit 29 to generate a start pulse S. Pulse S enters multi-vibrator 9 where it is delayed until the digital counters 2 and 12 have been re-set. From 9, the signal enters flip-flop circuit 14 when portion F goes off and portion F goes on. Gate circuits 1 and 11 now feed signals from the detector D and from clockpulse generator 10 to the counters 2 and 12. When 12 has counted a predetermined number pre-set circuit 13 delivers a pulse to flipflop 14 and changes its state thus closing gates 1 and 11. The output from 2 passes to digital/ analogue converter 3 where it is converted to a voltage which is impressed on terminals 4 of a recorder. This voltage cannot be balanced by the operation of servomotor 8 because relay 17 is short circuiting the motor. The operation of flip-flop 14 in response to the signal from 13 causes section F to generate a pulse which is fed to multi-vibrator 15 which provides a pulse having a predetermined time duration during which it operates relay driver 16 and breaks the contact made by 17. This causes motor 8 to operate and restore the balance on the potentiometer 6 between the voltage on terminals 4 and that generated by D. C. supply 5. In operating, motor 8 causes a trace, representative of the voltage difference, to be drawn on the record sheet. The pen is arranged to scribe perpendicularly to the direction of movement of the record sheet when it is moved by motor 8, and when still it draws a line parallel to the direction of movement of the record sheet. As a result Fig. 2 (not shown) the diffraction pattern obtained presents the appearance of a rectangular histogram. The time interval between separate starting pulses S is more than 30 seconds.
Patent GB-1308393-A (GB)
Title: Actuator assemblies for electric switches
IPC: H01H23/16
Filed: 1970-12-01
Abstract: 1308393 Snap-action switches ILLINOIS TOOL WORKS Inc 1 Dec 1970 [1 Dec 1969] 57086/70 Heading H1N In a snap-action electric switch operated by a toggle lever 48, Fig. 1, a spring loaded cam 70 on the lever 48 engages a roller 40 on the pivoted contact actuator 32 which moves over centre to provide a substantially friction free snap-action. In the example the roller 40 is mounted on a pin 38 in slots of a bracket (34), Fig. 3 (not shown), attached to the carrier 32 for the moveable contacts 42, 44 and the nosed cam 70 is backed by a spring 76. In a modification the actuator 32 may depress one or more pushbutton switches (80, 82), Fig. 4 (not shown).
Patent GB-1126899-A (GB)
Title: Improvements in or relating to circuit arrangements for synchronizing oscillators
IPC: H03L7/083
Filed: 1966-12-21
Abstract: 1,126,899. Automatic phase control systems. PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd. 21 Dec., 1966 [24 Dec., 1965], No. 57126/66. Heading H3A. The frame oscillator 9 of a television receiver is synchronized indirectly by the output of a phase discriminator stored in a smoothing circuit 20 and directly by pulses 19 integrated by resistance 25 and capacitor 26. In the circuit shown in Fig. 1 a reference signal 3 derived from oscillator 9 is applied to transistor 1, and the television signal is applied to transistor 2 through an integrating network 10, 11 so that output pulses 19 are produced having a duration corresponding to the overlap between the frame synchronizing pulses 16 and the flattened portions 17 of the reference signal 6. When the oscillator 9 is not synchronized the pulses 19 occur at a beat frequency, and since the smoothing circuit has a time constant equal to or less than a beat period the voltage stored on capacitor 21 is very small; consequently the amplification of transistor 2 is large, and the pulses 19 are large and produce rapid synchronization. When synchronization is achieved the voltage stored on capacitor 21 is large, e.g. half the supply voltage, thereby reducing the amplification of transistor 2 and the amplitude of pulses 19 so that the system is less liable to be upset by interference pulses. The transistor 1 may be omitted if the reference and synchronizing signals are added by resistances and supplied to the base of transistor 2. Alternatively both transistors may be replaced by a pentode, one signal being applied to the control grid and the other to the suppressor grid.
Patent GB-1408417-A (GB)
Title: Bituminous material
IPC: E04D5/10
Filed: 1972-12-11
Abstract: 1408417 Paving bridge decks B P B INDUSTRIES LTD 10 Dec 1973 [11 Dec 1972] 57171/72 Headings E1G and E1W [Also in Division B5] A bridge deck 2, (Fig 1) carries a layer of a bituminous material 1 comprising an organic synthetic fibrous fleece which is saturated and coated in bitumen and to a face of which is bonded a layer of metallic foil, the material being secured to the deck with the foil 3 uppermost, a layer of bitumen coated fibrous material 4 being bonded to the foil and a bitumen macadam base course 5 applied to the layer 4. A roof or floor 9 (Fig 2) carries a layer of a bituminous material 1 (as defined above) carrying a layer 7 of mineral granules applied to the face thereof opposed to the foil, and laid on the roof or floor with the foil uppermost and with a layer 10 of mastic overlaying it.
Patent GB-1159789-A (GB)
Title: New 2-Trihalomethyl-Benzimidazoles and their Application
IPC: C07D235/10
Filed: 1966-12-22
Abstract: 1,159,789. Compositions containing substituted benzimidazoles. MONSANTO CHEMICALS (AUSTRALIA) Ltd. 22 Dec., 1966 [29 Dec., 1965], No. 57392/66. Headings A5B and A5E [Also in Division C2] Veterinary anthelmintic or herbicidal compositions contain as the active ingredient a substituted benzimidazole of the general formula wherein R represents hydrogen and one or more nuclear substituents such as halogen atoms and hydroxy, alkyl, acyloxy, alkoxy, alkylthio, haloalkyl, nitro amino and substituted amino groups. The veterinary composition may be in the form of a water-wettable or water-dispersible powder, tablet or capsule, or Imay be in the form of an animal feed or a urea or salt lick or block.
Patent GB-1205790-A (GB)
Title: Electrographic recording
IPC: G03G15/32
Filed: 1967-12-19
Abstract: 1,205,790. Selective printing. RANK XEROX Ltd. 19 Dec., 1967 [19 Dec., 1966], No. 57505/67. Heading B6F. [Also in Divisions H1 and H4] In an arrangement for recording electrostatic images, a charge retaining recording medium is placed in the air gap between a recording electrode and a backing electrode, an ionized inert gas is introduced into the air gap in the region of the recording electrode, and an electrostatic field is applied between the recording electrode and the backing electrode. As shown in Fig. 1, a document 26 is scanned by light 28 and a photo-electric system 30 produces a signal representing the information on the document which after shaping at 32 is pulsed at 34 and amplified at 36 to control the discharge of an ion gun 20 to produce copy 22 or other stored information. Enlarged images may be produced using various drum diameters. The ion gun 20 includes an enclosed chamber to which helium from a tank 24 is supplied, the flow of helium serving to maintain the discharge space of the gun in a clean and controlled condition. The gun 20 includes a main or pin electrode 40, Fig. 2, and a control or plate electrode 42 having an orifice 58, an insulating sleeve 44 holding the electrodes in position and providing an ionization space between the electrodes. The paper or other dielectric is mounted on a conductive platen adjacent the electrode 42 and helium is fed via supply tube 54 and through slots 56 in the electrode 40 to the ionization space. In one arrangement, Fig. 6 (not shown) the platen is at ground potential the plate electrode 42 is maintained at -1000 volts and the electrode 40 is pulsed to -2000 volts during the "write" cycle. A number of alternatives are indicated, Figs. 7 to 16 (not shown). In a modification, Fig. 17, the duration of the controlling pulse is maintained constant. The input signal pulse is supplied to a flip-flop 74 whose output via driver stage 76 and amplifier 78 controls the application of high voltage pulses to the electrode 40. A differentiating circuit 70, 72 senses the change in potential of the electrode 42 where the gap breaks down and stops the discharge after a specified time determined by an adjustable delay in the flip-flop 74. Line gun.-In this arrangement, Figs. 22, 23 (not shown) the orifice 68 is replaced by a long narrow slit which co-operates with a roller carrying a helical wire electrode. Multiple ion gun array.-An ion gun head 132, Fig. 21, comprises seven independently controlled ion guns 130 in an insulating housing 116, helium being supplied via an inlet 136 to a chamber 126 common to all the guns. Each gun has a helium chamber 124 surrounding a pin electrode 122, the bottom of the chamber being formed by a plate electrode 118 with an orifice 120, the electrodes being energized as described previously. The electrodes 118 may be separate elements or formed by a single conductive sheet with appropriately spaced holes. This arrangement enables printing out at a plurality of points simultaneously.
Patent GB-1494480-A (GB)
Title: Split ring
IPC: A44B11/00
Filed: 1974-12-17
Abstract: 1494480 Split ring AEROLEX PRODUCTS Ltd 17 Dec 1974 [17 Dec 1973] 58384/73  Heading A4G A split ring 10 has a gap 11 for the insertion of webbing or the like and a sleeve 12 movable to a position bridging the gap, the ring having a notch 13 having a face 14 at right angles to the length of the ring and into which notch the material of the sleeve can be forced to retain it in said position. As described a stainless steel ring 10 has two notches 13, and a stainless steel sleeve 12 has saw cuts 17 which facilitate deformation of the sleeve material into the notches 13 when the sleeve bridges the gap 11.
Patent GB-1442608-A (GB)
Title: Travelling magnetic field inducing inverter circuit
IPC: H02M7/515
Filed: 1973-12-18
Abstract: 1442608 Inverting: control of A.C. motors TOKYO SHIBAURA DENKI KK and TUNGHAI CHIN 18 Dec 1973 [22 Dec 1972] 58487/73 Headings H2F and H2J A travelling magnetic field inducing inverter for energizing polyphase magnetic field inducing coils 5a ... 5c, connected in star, comprises controlled rectifiers 15 ... 20 having switch means 12, 13 and coupled reactors 4, 8, connected as shown, in the D.C. side and having unidirectionally conductive elements 21, 22 connected in reverse across the D.C. side, having a terminal for the star point of the magnetic field coils 5a ... 5c connected to their common junction and having diodes 10, 11 connected as shown across the switch means 12, 13. The coils 5a ... 5c may be the windings of a rotary or linear motor: the switch means 12, 13 may be transistor or thyristor choppers. The Specification describes how a travelling field is produced by sequential operation of thyristors 15 ... 20 which are turned off by sequential operation of switch means 12, 13, 21, 22. The variation of the magnitude and frequency of the travelling field is obtained by varying the sequence and frequency of switching of the various elements. Regenerative braking may be achieved by varying the order of operation of the switch means 12 and 21. In Fig. 6 (not shown) thyristors 21, 22 are replaced by switches and diodes connected directly across the source 1.
Patent GB-1216990-A (GB)
Title: Improvements in or relating to composite structures
IPC: E04C2/32
Filed: 1967-12-27
Abstract: 1,216,990. Metal laminate. SOC. ANON. BRONZAVIA. 27 Dec., 1967 [4 Jan., 1967], No. 58659/67. Heading B5N. [Also in Divisions E1-E2] A composite structure comprises sheet-like metal elements and one element 1 has a plurality of substantially identical spaced elongated, hollow protrusions 2 formed on one face thereof, the protrusions being disposed to lie in two sets of parallel regularly spaced rows, with the protrusions of one set of rows extending transversely of the protrusions of the other set of rows, the protrusions in each row being offset, along said row, with respect to the protrusions in each immediately adjacent row of the same set, and each protrusion of said one set of rows being disposed between two successive protrusions of a respective row of said other set, the other face of the element 1 being applied against one face of a second element, the two elements being rigidly secured together over at least part of their area of contact. The second element may be flat or have protrusions or longitudinal ribs on its outer face. The elements may be glued, brazed, spot-welded or riveted together. When both elements have protrusions these may be aligned with each other, or placed in parallel, or oriented slantwise with respect to each other. The protrusions of different elements may be of different sizes and project by different amounts. The protrusions may be formed by pressing. The structure may be flat, or follow the surface of a cylinder or cone, or may be curved in two directions by forming the elements on a press before assembly.
Patent GB-1218229-A (GB)
Title: Glazing concrete
IPC: C03C3/102
Filed: 1968-12-12
Abstract: 1,218,229. Glaze for concrete. COMMONWEALTH SCIENTIFIC & INDUSTRIAL RESEARCH ORGANIZATION. 12 Dec., 1968 [12 Dec., 1967], No. 59257/68. Heading C1M. A glaze composition comprises, proportionately, (A) 1À4-2À6 inches SiO 2 , (B) 0À1-0À2 mole TiO 2  and (C) 0À4-0À9 mole PbO, 0-0À3 mole ZnO, 0À1-0À6 mole Na 2 O and 0-0À2 mole Li 2 O, wherein the constituents of (C) total 1 mole; the balance, if any, consisting of compatible constituents. The glaze composition may be applied to an hydraulic cement surface and fired at 550-620 C. After firing the glazed cement may be cured by exposure to moisture. The glaze may be applied to prefired concrete. The concrete may be reinforced with glass or asbestos fibres. Colouring pigments may be included in the glaze. The glaze may be applied by brushing, rolling or spraying. Two layers of glaze, which may be the same or different, may be applied and fired in a single firing. Alternatively the glaze may be applied over an underlayer which comprises glaze mixed with refractory metal oxide.
Patent GB-1424338-A (GB)
Title: Moulding device
IPC: B32B3/12
Filed: 1972-12-28
Abstract: 1424338 Sheet forming UNION CARBIDE CORP 28 Dec 1972 [29 Dec 1971] 59904/72 Heading B5A This Specification relates to a device for expanding the cross-section of a thermoformable blank in the process described in Specification 1,424,334. The device comprises embossed or plane mould plates la, 1b which have holes or channels to vent the voids formed in the expanded blank. The plates can be heated electrically, and cooled by air circulation, or a fluid circulated through platens 3a, 3b. The plates can be supported on, and moved apart by, endless belts.