baber/WOPTO huggingface dataset:
Patent GB-1226574-A (GB)
IPC: G02C7/02
Filed: 1968-05-20
Abstract: 1,226,574. Fresnel lenses for spectacles. A. JAMPOLSKY. March 20, 1968. [June 20, 1967], No. 13385/68. Heading G2J. In order to correct strabismus, a thin flexible plastic membrane 24 e.g. vinyl butyrate having a plurality of prismatic ridges 34 provided in one surface to form a Fresnel lens is detachably attached to either of the surfaces of an opthalmic element e.g. a spectacle lens 12. The membrane 24 may be attached by adhesive, electrostatic attraction, vacuum or finger pressure and may comprise integral or separate different prismatic sections Fig. 5 (not shown) and an occluded portion Fig. 6 (not shown). Membrane surfaces 36 may be planar or curved and the sawtooth ridges 34 may be linear or concentric. Thickness B may be varied to produce a lens so that the membrane may be attached to a non-resolving optical element e.g. sun-glasses to form prescription glasses.
Patent GB-1227960-A (GB)
IPC: E04C1/40
Filed: 1967-09-27
Abstract: 1,227,960. Building blocks. H. C. HUGHES. 13 May, 1968 [27 Sept., 1967], No. 43982/67. Heading E1B. A building block comprises a four or five wall casing moulded from high strength concrete or synthetic plastics (not less than 2,000 lbs sq in) filled with lower strength aggregate (not less than 300 lbs/sq in) (flyash, clinker, or slag) concrete which may be aerated, the casing being used as a mould for the core. The casing may have transverse strengthening walls. At one end the core may be slightly recessed within the casing.
Patent GB-1228394-A (GB)
IPC: G06M1/24
Filed: 1968-09-24
Abstract: 1,228,394. Counter readout. FERRANTI Ltd. 18 Sept., 1969 [24 Sept., 1968], No. 45419/68. Heading G4D. [Also in Division G2] A continuously moving digit wheel is arranged so that the image of a digit appears to be stationary for as long as it is visible. The wheel comprises ten glass or transparent plastic prisms 10 forming its periphery, each prism having a digit marked in negative form on part of its outer surface or on a transparent plastic strip 15, which digit is illuminated by a light 16. The viewer 17, looking through a slot whereby he can see only the non-digit carrying part of one prism face at a time, sees the apparent image of the digit on the axis of rotation 20 so that the digit appears stationary while the wheel rotates. When the boundary between adjacent prisms passes across the field of view the next apparently stationary digit appears. In other embodiments, the corners of the prisms can be removed to save space, the wheel periphery may be made curved, a light focusing layer may be placed over the layer 15, and the digits may be projected on to a screen. The wheel is used in a multi-digit rotary counter having continuous transfer between its wheels.
Patent GB-1229155-A (GB)
IPC: B42F5/02
Filed: 1969-01-22
Abstract: 1229155 Filing coins A W ROWNTREE 10 Dec 1969 [22 Jan 1969] 3719/69 Headings A4G and G19 A coin holder comprises at least three sheets joined by heat sealing at places 7, 8 to provide a plurality of pockets 9 between two of the sheets and an open card holding pocket between the two sheets and the third sheet. The third sheet may have on its outer face a further pocketed sheet and the holder may be formed with a perforated filing strip 13.
Patent GB-1230589-A (GB)
IPC: G01N11/06
Filed: 1968-08-01
Abstract: 1,230,589. Automatic viscosimeter. CESKOSLOVENSKA AKADEMIE VED. Aug. 1, 1968 LAug.11, 1967], No.36806/68. Heading G1S. A viscosimeter for giving automatic measurements of viscosities of high molecular weight substance solutions comprises a measuring capillary tube 7, Fig. 1, photo-electric liquid level cells 8, 9 connected to an electronic control device 26, a compensating tube 11 and a filling tube 36 leading to a flask 10 and communicating with tube 7, a source feeding a pipe 5 with low pressure air or nitrogen, and a storage tank 19, the viscosimeter comprising a programming device 27 controlling electromagnetic valves 1-4 serving for regulating both inlet and outlet of the air or nitrogen, and eventually the electromagnetic valve of a dosing device 18 inter-connected with an electronic control device 26 connected to photoelectric cells adapted to measure the flow time through a cell and connected also to a photoelectric cell of the device 18 and to a recorder 27. In Fig.3 (not shown) the dosing device 18 comprises an automatic electromagnetically controlled burette the valve (31) of which is operated by a coil 29 connected to the programming device 25.
Patent GB-1231319-A (GB)
IPC: B60T8/1761
Filed: 1969-08-07
Abstract: 1,231,319. Anti-skid systems. GENERAL MOTORS CORP. 7 Aug., 1969 [21 Aug., 1968], No. 39622/69. Heading F2F. An anti-lock vehicle brake control system has means for sensing incipient wheel lock-up comprising means for generating an electrical signal proportional to wheel acceleration including a tachogenerator 12, means for producing a predetermined fixed deceleration threshold electrical signal, a summer for summing the acceleration signal and the deceleration threshold signal to produce a composite signal and an integrator for integrating the composite signal to produce an output signal which represents the amount that the time integral of the deceleration threshold exceeds the actual wheel velocity. The tachogenerator 12 provides an input signal to an electronic control circuit 14 which furnishes two outputs on conductors 16, 18 to control valves 28, 36 in a pneumatic system operating a pressure modulator 34 for an hydraulic brake system which includes a master cylinder 40 and wheel brakes 42. The pneumatic portion comprises a tube 20 vented to atmosphere at one end, cemented to a vacuum source 22 such as the vehicle engine manifold at the other end and containing in series a restricting orifice 24, a pressure accumulator 26, a normally closed electrically operated release valve 28 and a second restriction 30. A branch tube 32 is connected to tube 20 between valve 28 and orifice 30 and leads to the modulator 34, the tube 32 containing a normally open electrically operated valve 36. In operation approach of a lock-up condition on the wheel causes valve 28 to open, admitting air from accumulator 26 to the modulator to relieve some brake pressure until acceleration of the wheel begins, an output on conductor 18 closing valve 36 to prevent further air pressure changes in the modulator and keep the brake pressure constant until recovery of the wheel velocity removes the signals on conductors 16, 18 to close valve 28 open valve 36 and allow re-initiation of the cycle.
Patent GB-1231554-A (GB)
IPC: B29C39/00
Filed: 1970-02-03
Abstract: 1,231,554. Endless conveyers. R. ZIPPEL, [trading as RICHARD ZIPPEL & CO. K.G.]. 3 Feb., 1970 [1 March, 1969], No. 5093/70. Heading B8A. An endless conveyer for carrying moulds 8 comprises a chain whose link members 6 are engageable by forked members 3 provided on guide wheels 1, 31 of which wheel 1 is driven. Plate links 7 are pivotally connected to the links 6 and have rollers 13 which run on rails 14. The moulds 8 are fixed to the links 7 by screws, for example. The plate links may be of triangular or rectangular form, Figs. 3, 4 (not shown), and may be provided with ejectors for use with the moulds. In Fig. 6, plate link members 16 have projections 17 and complementary support members 18 whose engagement, when the members 16 are on the straight stretches of the conveyer path, provides additional stabilization.
Patent GB-1233154-A (GB)
IPC: G01R17/08
Filed: 1969-06-13
Abstract: 1,233,154. Force balance. COMPAGNIE DES COMPTEURS. June 13, 1969 [July 5, 1968], No.30217/69. Heading G1N. A force balance comprises a spherical plunger 1 subjected to a hydrostatic thrust and supported at an end of a beam 2 pivoted at 3 and supporting at its other end permanent magnets 4, 5, which beam, plunger and magnets are enclosed by a non- ferromagnetic fluid-tight partition 9. Beam unbalance is detected by a Hall-effect probe 8 the signal from which is amplified at 10 and fed to balancing coils 6, 7. The partition may be of titanium or of certain stainless steels. (For Figure see next page)
Patent GB-1233400-A (GB)
IPC: H01H13/20
Filed: 1968-08-06
Abstract: 1,233,400. Linkwork; plastics springs. PAINTON & CO. Ltd. 16 July, 1969 [6 Aug., 1968], No. 37487/68. Headings F2K and F2S. [Also in Division H1] An actuating assembly, suitable for operation of push-button switches, for example, includes a resilient structure formed by a single plastics material moulding having at least a pair of arms resiliently movable towards one another, at least one of the arms being engageable by an actuating member and part of the structure being adapted to engage the device to be actuated, initial movement of the actuating member causing deformation of the resilient structure by relative movement between the arms thereof; whereafter further movement of the actuating member causes the structure to move as a whole in a device-actuating direction. Several embodiments applied to the actuation of microswitches are described. As shown in Fig. 2 the resilient structure 16 is U-shaped and, upon depression of button 12, its arms 17 ride into a frusto-conical bore 14 until the bias of a switch actuator 15 is overcome, whereupon the whole member 16 moves to operate microswitch 3. More than one microswitch may be ganged for conjoint operation (Fig. 3, not shown). In another embodiment (Figs. 4 and 5, not shown), the member 16 has three arms (27) forming a cup-shape to receive a frusto-conical projection on a plunger, such that depression of button 12 deforms the arms outwards until switch 3 is actuated. In two other embodiments the member 16 is merely a two-armed U-shape with the button 12 acting on one arm while the other arm subsequently actuates the switch; in one case (Fig. 6, not shown) the member 16 is pivoted on a fixed pin at its bight portion, while in the other case (Fig. 7, not shown) the member 16 is carried by the actuating member, having one arm secured thereto or integral therewith.
Patent GB-1238480-A (GB)
IPC: B23K20/12
Filed: 1968-11-26
Abstract: 1,238,480. Welding by pressure. CATERPILLAR TRACTOR CO. 26 Nov., 1968 [12 Feb., 1968], No. 56092/68. Heading B3R. In friction welding the tailstock 17 for holding the non-driven workpiece to be welded is freely rotatable to reduce the amount of energy absorbed at the weld interface. A friction welding machine having a driven spindle 12 including a chuck 13 for holding a workpiece 22, includes a tailstock 17 and chuck 19 for holding a second workpiece 23. The tailstock 17 is freely rotatable so that during frictional engagement of the workpieces 22, 23 some of the energy in the spindle 12 is absorbed by induced rotation in the tailstock. The resistance of the tailstock to rotation may be varied by securing one or more flywheels 25, 36, 37 normally non-rotatably held by the tailstock support 26, to the tailstock for rotation therewith, although a remotely variable hydraulic, electrical or mechanical load may be used instead, and may additionally aid or accomplish braking after completion of the weld. The driven spindle 12 may be provided with an inertial flywheel whereby excessive heating relative to the weld requirements can be supplied. The tailstock is supported for rotation by a piston 28 defining a hydrostatic bearing 29, the supply of extra fluid to which urges the tailstock towards the spindle 12 to bring the workpieces into engagement. A bearing 33 provides a lubricated surface for supporting piston 28 which is provided with annular grooves 34 to maintain a supply of lubricant between the relatively rotating surfaces. The method and apparatus of the invention are stated to be particularly for friction welding parts of small surface area. The spindle 12 may be braked after welding by a brake 51.
Patent GB-1239497-A (GB)
IPC: F24C14/02
Filed: 1969-06-21
Abstract: 1,239,497. Gas fired pyrolitically cleaned oven. PARKINSON COWAN Ltd. 22 June, 1970 [21 June, 1969], No. 31451/69. Heading F4W. In a gas-heated pyrolitically cleaned oven, a power-driven fan recirculates the gases so that, when set for cleaning, the ratio of the total mass of gas circulating to the mass of gas entering or leaving is between 3: 1 and 5 : 1. A gas burner 3 is mounted in a trough 2 at the bottom of the oven, and secondary air is supplied by a section 7 of a forced draught fan. The gases are withdrawn from the oven through a vent 9, part escaping to atmosphere through an outlet 10 and drawing cool air with them through a flue 11. The remainder of the gases pass through section 8 of the fan to the trough surrounding the burner. The burner 3 may be divided into sections, part only being used for cooking. The recirculation ratio is chosen to give a selflimiting temperature suitable for pyrolysis of oven soil when the whole of burner 3 is in action.
Patent GB-1250072-A (GB)
IPC: F16K1/228
Filed: 1969-02-03
Abstract: 1,250,072. Valves. VARIAN ASSOCIATES. 3 Feb., 1969 [19 Feb., 1968], No. 5760/69. Heading F2V. In a butterfly valve 1, the closure member 11  is formed from two relatively movable plates 12 and 13 which are biased away from each other by a spring 23, have bevelled outer peripheries which together define a recess for a continuous sealing ring, and which are journalled on a manually rotatable shaft 5 by two lugs 14, 15, each of which lugs is welded to plate 12 and freely passes through plate 13. The shaft carries an eccentric cam 21 having three consecutive plane surfaces (31, 34, 29, Fig. 3, not shown), and either or both of the closure member plate 12 or the valve bore 3 have secured thereto a right-angled plate 35 (38, Fig. 4, not shown) which plate has an adjustable screw extending from its free limb for engagement with the valve bore 3 or plate 12, respectively, upon the closure member reaching its fully closed position. When in such position, further rotation of the shaft causes the first of the three cams to disengage from plate 13 and the remaining two to successively engage plate 13, with the result that plate 13 is moved towards plate 12 and the sealing ring is compressed, and hence radially expanded, to provide, in turn, a substantial fluid-tight seal between the closure member and the bore, and then a complete fluid-tight seal between the two valve parts. Reverse rotation of the handle firstly releases the seal, which retracts into its recess, and then rotates the closure member.
Patent GB-1251837-A (GB)
IPC: H01L23/433
Filed: 1968-10-30
Abstract: 1,251,837. Semi - conductor devices. ROBERT BOSCH G.m.b.H. 30 Oct., 1968 [31 Oct., 1967; 25 Nov., 1967], No. 51360/68. Heading H1K. The solid base terminal of a semi-conductor power device is of generally plate-like form with an upstanding central portion upon which the semi-conductor element is mounted. As shown a junction diode has a base terminal 1a of nickel-plated copper, the semi-conductor element being attached to the upstanding portion after the upper surface has been coated by the solder-flood method. The nail-head 2a of the other terminal is of the same diameter as the upstanding portion of the lower terminal. The periphery of the semi-conductor element is lacquered. The cover of the housing, iron cylinder 15a, glass ring 15b, and nickel-iron tube 15c is welded to the base terminal at a welding ridge 12 and is crimped or welded to the second terminal at 2b. A hollow conical lip 11 acts as a contamination shield for the element. In an otherise identical variant the housing cover is omitted and a resin-mass is formed about the assembly. In this case, ridge 9 defines the limit of the resin-mass and the hollow conical lip keys the resin-mass to the assembly. In the embodiments the edge 15 of the base terminal is milled so that the rectifier may be securely anchored in the bore of a cooling plate into which it is pressed.
Patent GB-1257030-A (GB)
IPC: G03G13/14
Filed: 1968-12-31
Abstract: 1,257,030. Electro-statographic process. XEROX CORP. Dec.31, 1968 [Jan.2, 1968], No.61837/68. Heading G2H. Imaging process using an imaging member comprising a supported layer of softenable material having a layer of particulate material therein or thereon, the softenable material and/or the particulate material comprising an electrophotosensitive material, comprises (i) forming an electrostatic image on the member, (ii) softening the softenable layer so that the particulate material migrates imagewise towards the support (as described in Specification 1,152, 365), and (iii) terminating the migration by uniformly exposing the layer, e.g. by using a flash exposure.
Patent GB-1265192-A (GB)
IPC: A63B63/00
Filed: 1969-04-14
Abstract: 1,265,192. Game apparatus. D. R. WALLER. 10 July, 1970 [14 April, 1969], No. 19042/69. Heading A6H. A game apparatus comprises a target having a plurality of apertures 4 and a peripheral skirt 3 which is slidably supported inside a further container 1 which is mounted on a stand 5. The target is surrounded by a net screen 8 and the hinged lid 7 of the container 1 is provided with rods 10 which support a further net screen 11. A net bag 12 is placed below an opening in the container 3 to collect missiles that have passed through the target apertures 4.
Patent GB-1265866-A (GB)
IPC: C07D417/04
Filed: 1969-07-25
Abstract: 1,265,866. Dibenzoxazepin and dibenzothiazepin derivatives. DR. A. WANDER Ltd. 25 July, 1969 [23 Aug., 1968; 24 Jan., 1969; 4 Nov., 1968; 2 May, 1969], No. 37538/69. Heading C2C. Novel compounds of Formula I: (in which Z is oxygen or sulphur and R is chlorine, bromine, nitro or methyl) and acid addition salts thereof, are prepared by treating a compound of Formula II: with an oxidizing agent, and when required, converting the resulting compound I into an acid addition salt by reaction with an acid. Pharmaceutical compositions for oral or parenteral administration, comprise a compound of Formula I, or a pharmaceutically acceptable acid addition salt thereof, together with a physiologically acceptable carrier or diluent. The compositions have a neuroleptic effect generally accompanied by cataleptic and apomorphine antagonistic effects.
Patent GB-1290881-A (GB)
IPC: C07D295/092
Filed: 1969-10-06
Abstract: 1290881 Dihydronaphthalene derivatives E R SQUIBB & SONS Inc 6 Oct 1969 [16 Oct 1968] 49017/69 Heading C2C Compounds of the general formula (R<SP>1,2</SP>=H, C 1-5  alkyl or hydroxyalkyl, C 2-5  alkenyl, Ph-(C 1-5  alkyl) or NR<SP>1</SP>R<SP>2</SP>=unsubstituted or substituted 5-7 membered monocyclic radical optionally containing an O, S or second N atom, provided that R<SP>1+2</SP> contain not more than 18 carbon atoms; R<SP>3-5</SP>=H, C 1-5  alkyl; R<SP>6</SP>=H or acyl containing less than 14 carbon atoms) and their acid addition and quaternary ammonium salts are prepared by (a) reacting a compound of the formula with a compound of the formula (Y = Cl, Br) and reacting the resulting compoundof the formula with R<SP>1</SP>R<SP>2</SP>NH, or (b) reacting a compound of the formula with R<SP>1</SP>R<SP>2</SP>NH, optionally followed in either case by esterification and/or salt formation. The above compounds are antifibrillatory agents, and may be administered in the form of pharmaceutical preparations containing them in association with a carrier.
Patent GB-1294858-A (GB)
IPC: C22C38/08
Filed: 1969-06-06
Abstract: 1294858 Precipitation hardenable steel G K N GROUP SERVICES Ltd 4 Sept 1970 [6 June 1969] 28632/69 Heading C7A A steel comprises:- C up to 0À1% Al 0À7-1À5% Ni 2-4% Mn 0-2% and Ti 0-2% the balance, apart from impurities, such as P, S and Si, being Fe. The steel may be solution treated at 800-1000‹C. for about 1 hour or hotrolled with a finishing temperature in this range, quenched in air, oil or water, optionally heated at 660-720‹C. or cold worked with about 70% reduction, or cold worked and heated at 660- 720‹C. for 1 hour, and finally aged at 450-550‹C. Use:- Production of gear-wheels which are to be nitrided.
Patent GB-1296912-A (GB)
IPC: C04B37/02
Filed: 1970-02-19
Abstract: 1296912 Ceramic-metal seals GENERAL ELECTRIC CO 19 Feb 1970 [17 March 1969] 8116/70 Heading B3V [Also in Division C1] An electric lamp 1 has an envelope 2 formed of a tube of polycrystalline alumina ceramic and has refractory metal end caps 3 (e.g. of Nb), the end caps being sealed to the ceramic by a vitreous composition 4, which consists of, by weight, with a maximum permissible departure from these proportions of 5% of each stated individual value. The composition 4 may be initially in the form of a ring which is placed in the desired position between tube 2 and end caps 3 and then heated to 1400-1500 C. to fuse the composition and form the seal.
Patent GB-1297777-A (GB)
IPC: B66F1/08
Filed: 1969-12-08
Abstract: 1297777 Step-by-step jacks N H AHLGREN and O TAHR 8 Dec 1969 [21 Feb 1969] 59759/69 Heading B8J A jack assembly comprises a gripper 8 for a loaded rod 15 raised by pressure fluid admitted below a piston 5 through rods 6 engaging a ball holder 7. As shown slides 3 are restrained from rising by stop bolts 1 so that balls 10 retain their illustrated position in the holder 7 holding knockout sleeve 11 of a gripper opening means away from wedges 12 urged by springs 14 into contact with the rod 15. The assembly can operate with a similar jack or with a gripper fixedly mounted in relation to the jack housing 2, the return stroke being made under the action of return spring 9 and return piston 35 when the load has been transfered, the wedges 12 sliding over the rod 15. When the loaded rod 15 is to be lowered the stop bolts 1 are removed and a friction device 16 set by tightening a set screw 17. From the position shown, when another gripper has taken over the load the rod 15 is lifted slightly causing the device 16 to lift the slides 3. The balls 10 are thus released from the sleeve 11 under the lower bevel on the slides 3 by the action of knock-out spring 13 which strikes the wedges 12 and opens the gripper 8. When the opened gripper 8 is now raised by the piston 5 and catches up with the slides 3 the balls 10 are again forced into the holder 7 by the bevelled surface, but are located below the bead on the sleeve 11, thus preventing the sleeve 11 from being returned by distance spring 23 when the sleeve 11 is clear of the knock-out spring 13. After the initial slight lift, when the gripper of the other jack starts lowering the rod 15, the device 16 returns the slides 3 to their initial position. When the lowering jack has reached its final position the opened gripper 8 is moved towards its upper extreme position, knock-in spring 36 being compressed by the wedges 12 and the balls 10 on arrival at the upper bevelled surface of the slides 3 are urged out of the holder 7 by the distance spring 23, the wedge springs 14 and the knock-in spring 36, the stroke being set by adjustment of an abutment 4. The wedges 12 are then urged against the rod 15 by the springs 14 and the knock-in spring 36. As the piston 5 continues to raise the gripper 8 the wedges 12 engage the rod 15 and take over the load from the other jack. On lowering the load the balls 10 are urged by the upper bevelled surface of the slides 3 into the holder 7 above the bead of the sleeve 11. The final stage of lowering compresses the spring 13 and returns the device to the initial position. When several jacks co-operate in lowering the load a stop device 37 arresting the return movement of the gripper 8 until the pressure has risen to a value dependent on the setting of the stop device ensures that all the jacks simultaneously come into fresh engagement.