baber/WOPTO huggingface dataset:
Patent GB-1238590-A (GB)
IPC: H04J3/04
Filed: 1969-09-23
Abstract: 1,238,590. Transistor switching circuits. UNITED AIRCRAFT CORP. 23 Sept., 1969 [13 Nov., 1968], No. 46816/69. Heading H3T. Each of a plurality of switching circuits 1, 2, 3 connected to a common output line 10 has its input on lines 4, 5 connected to a differential amplifier 12 whose output is connected to one input 16 via a feedback loop such as 14, 24, 26 a portion 14 of which forms a feedforward path and includes a diode, the said one input being connected to a switch 20 whereby it may be earthed so that the output signal of the amplifier 12 is limited to that polarity which is blocked by the diode 14. When the switch 20 such as a transistor is open the amplifier operates normally but only negative signals pass through 14 to the output, positive signals being blocked and flowing through a further diode 21 in a separate feedback path to substantially reduce the amplifier gain to positive signals. When T20 is on, the input 16 is prevented from going positive so that the output cannot go negative. A selector 8 controls all the switching circuits 1, 2, 3; and the transistor 20 could be replaced by a diode arrangement.
Patent GB-1250526-A (GB)
IPC: G03G17/10
Filed: 1968-10-22
Abstract: 1,250,526. Electrostatographic imaging. XEROX CORP. Oct.22, 1968 [Oct.27, 1967], No. 50002/68. Heading G2H. An electrostatographic migration imaging process comprises (1) forming an electrostatic latent image on at least a portion of an imaging member comprising a supported layer of softenable material having particulate migration therein or thereon, (2) uniformly softening the softenable material so that an image is formed by selective migration of the particulate material through the softenable material, and (3) repeating steps (1) and (2) at least once to form at least one additional image. The basic process is described and claimed in Specification 1,152,365.
Patent GB-1251901-A (GB)
IPC: B60R1/04
Filed: 1969-01-13
Abstract: 1,251,901. Rear view mirrors. REGIE NATIONALE DES USINES RENAULT, and AUTOMOBILES PEUGEOT. 13 Jan., 1969 [23 Jan., 1968], No. 1905/69. Heading B7J. [Also in Divisions E1-E2] A vehicle rear view mirror assembly includes a safety fastening device comprising two members 5 and 6, one of rigid material and the other of resilient material, one of which is secured to arm 4 of the rear view mirror 1 and the other to the body of the vehicle, the members 5 and 6 being mutually engaged by flexion of the resilient member and being disengaged upon a predetermined force being applied to the member carrying the rear view mirror element 1. As shown, female member 5 is rigid, is carried on the arm 4 of rear view mirror element 1 and has a cupshaped configuration substantially the shape of an equilateral triangle with rounded vertices and sides and a peripheral rib 8 formed with undercut portions 9 which are engaged by rounded vertices 10 on male member 6 to thereby hold the assembly in position, male member 6 being substantially the shape of an equilateral triangle and formed with a central boss having a cavity 11 and a hole therethrough permitting the passage of a screw 7 for securing member 6 to the vehicle body, the screw head being completely recessed into cavity 11. In an alternative arrangement Figs. 7, 8 (not shown) the female rigid member is secured by screws to the vehicle body and the resilient male member attached to the arm of the rear view mirror element has substantially the shape of an equilateral triangle with rounded vertices which engage undercut portions in the female member.
Patent GB-1252911-A (GB)
IPC: F16J15/32
Filed: 1968-11-15
Abstract: 1,252,911. Shaft seals. CARL FREUDENBERG. 15 Nov., 1968, No. 54301/68. Heading F2B.  In a shaft sealing ring comprising a lip 8 having a sealing edge 6 for engaging the shaft dovetail-like shaped projections 2-5 are provided on one side of the lip adjacent the edge 6, the projections providing edges extending substantially obliquely to the ring axis and acting, in use, to oppose leakage irrespective of the direction of rotation of the shaft. The projections may be circular 2, triangular 3, semicircular 4 or triangular with curved edges 5 but normally only one kind is used in one ring. The lip 8 is urged inwardly by a garter spring 9. The ring is made by first moulding it complete with the projections, Fig. 1 (not shown) and then cutting back the lip so that the sealing edge 6 intersects the projections.
Patent GB-1252936-A (GB)
IPC: B61F3/08
Filed: 1968-11-07
Abstract: 1,252,936. Rail vehicle bogies. WEGMANN & CO. 7 Nov., 1968 [8 Nov., 1967; 1 June, 1968], No. 52864/68. Heading B7L. A torsionally weak rail vehicle bogie comprises transverse and longitudinal members 1, 2 defining an H-frame and which are torsionally weak by being either of channel section or longitudinally gapped box section, the members 1 being welded to members 2 by their webs only to allow for flexing, and the ends of the longitudinal members being rendered torsionally rigid, for example by having box sections 11 mounted thereon. The lower flanges of sections 11, the upper flanges of the longitudinal members and flat diagonal stays 17 may all be co-planar. The lower flanges of the members 1 and 2 may be formed with constrictions 18, 19 at their junctions or the lower flanges of the transverse members arched upwardly at 20 to provide flexibility. A transom 5 welded between the members 1 at their centres of thrust carries a king-pin 4.
Patent GB-1252948-A (GB)
IPC: H04J1/20
Filed: 1969-06-24
Abstract: 1,252,948. Locked oscillators. NIPPON ELECTRIC CO. Ltd. 24 June, 1969 [29 June, 1968; 19 Nov., 1968], No. 31945/69. Heading H3A. In an arrangement for synchronizing locally generated oscillations with the carrier frequency of an incoming signal, a multiple of the local oscillations is compared with the incoming signal in a phase difference detector having a non-linear characteristic. An embodiment comprises a synchronous detector for pulse modulation signals in which the modulation comprises shifting the phase of the carrier by #: the signals are applied from terminal 1, Fig. 1, to phase detector 2 and also to phase difference detector 3. Voltage controlled oscillator 4 oscillating at approximately the carrier frequency supplies a second input to phase detector 2 over a phaseshifter 6 and also drives a frequency-doubler 5. The output of frequency doubler 5 comprises the second input to phase difference detector 3: it is shown in the Specification that if the two inputs to phase difference detector 3 are added and the sum passed to a cubing circuit, the output of this includes a D.C. term the sign of which is independent of a phase shift of # in the input from terminal 1. This D.C. term is amplified by D.C. amplifier 7 and passed over lowpass filter 8 to control the frequency of oscillator 4. The phase difference detector comprises a signal adding circuit 12, Fig. 2, the output of which is passed over high-pass filter 13 to backto-back connected diodes 14, 15 which form the cubing circuit: the D.C. term in their output is selected by low-pass filter 16 and passed via terminal 17 to the voltage controlled oscillator. A construction uses a strip line 24, Fig. 5, earthed at the end 23, to combine the two signals, the input signal being fed in over a line 10 to a point in line 24 a quarter wavelength from the end 23, and the frequency-doubled local oscillations over a line 11 to a point in line 24 which is a high impedance for these oscillations but a low impedance for the input signal. The reversely connected crystal diodes 14, 15 are connected to a branch line 27 and feed into a low-pass filter comprising lines 16. The Specification also discloses a detector arrangement for diplexed signals, in which the phase may be 0, #/2, # or 3#/2 (Fig. 6, not shown) and also phase difference detectors for synchronizing the local oscillator in such arrangement (Figs. 7, 9, not shown).
Patent GB-1258519-A (GB)
IPC: G02B17/00
Filed: 1969-03-03
Abstract: 1,258,519. Overhead projector head; diaphragms. MINNESOTA MINING & MFG. CO. March 3, 1969 (March 4, 1968], No.11186/69. Headings G2A and G2J. An overhead projector head of the kind having two meniscus lenses 12, 14 at right-angles and a plane mirror 13 at the hypotenuse has in addition an apertured screen 15 at right-angles to the mirror 13 to reduce spurious reflections within the head. The aperture is semi-elliptical in shape and is positioned so that-substantially the entire beam passing through lens 12 falls on to the mirror 13. The screen 15 may also be used in projection heads without the second meniscus lens 14.
Patent GB-1258894-A (GB)
IPC: E02B15/10
Filed: 1968-01-19
Abstract: 1,258,894. Removing oil from the sea. BRITISH PETROLEUM CO. Ltd. 27 Jan., 1969 [19 Jan., 1968], No. 3043/68. Heading B7A. [Also in Division F4] A floating incinerator 1 for use in disposing of an oil slick 2 on the surface of the sea, comprises a combustion chamber 3 spaced from a submerged housing 6 by separator plates 5, a rotatable shaft 11 located in spiders 10 and 12, propellers 13 and 14 connected to the top and bottom of said shaft, and dispersing means 15 for throwing droplets of oil into the combustion space. In operation, starter fuel mounted on hooks 16 is ignited, causing the air that enters the chamber 3 between the plates 5 close to the surface of the water to rotate the propellers 13 and hence the shaft 11. Rotation of the shaft 11 causes the dispersing means 15 to throw oil from a pool 18 in the slick 2 into the lower portion of the combustion space where the burning starter fuel immediately ignites it. The propeller 14 on the shaft 11 forces water through the plates 5 beneath the slick so forming and continually replenishing the said pool 18. A plate 17 of density between the density of oil and water is mounted round the shaft 11 to float at the meniscus between the two liquids to help concentrate the oil within the reach of the dispersing means 15. The incinerator is kept afloat by means attached to arms 8 and stays 9.
Patent GB-1264246-A (GB)
IPC: D06L4/657
Filed: 1969-07-02
Abstract: 1,264,246. Textile softening agents; optical brightening. HENKEL & CIE G.m.b.H. 2 July, 1968 [2 July, 1968], No. 33309/69. Heading D1P. A textile softening agent comprises a salt of a surface-active ammonium compound and a cationic optical brightener of the formula: where X represents -SO 2 NH 2 , -SO 2 R, -SO 2 OR, -COOR, -CONH 2 , -CN, -CF 3 , halogen, OR or R; X' represents halogen, OR or R; Y represents: or  Y' represents H, R or an unsubstituted phenyl radical; Z represents H or Y; Z' represents H or R; R represents a C 1-4  alkyl radical; R' represents H or R; R" represents R or -(CH 2 ) n-1 CH 2 OH; n is 2, 3 or 4; and A- is an anion of an acid. The proportion by weight of brightener to ammonium compound may be 25:75 to 0.5:99.5. The agent may be used as an aqueous dispersion containing 3-15% by weight of the ammonium compound. The agent may also comprise dyestuffs, preservatives, perfumes and stabilising agents.
Patent GB-1265130-A (GB)
IPC: C07F9/38
Filed: 1970-11-18
Abstract: 1,265,130. Aminomethane diphosphonic acid. HENKEL & CIE G.m.b.H. 18 Nov., 1970 [19 Nov., 1969], No. 54742/70. Heading C2P. [Also in Division C1] Aminomethane diphosphonic acid and its salts are prepared by reacting a phosphorus trihalide with formamide and hydrolysing the product, and optionally forming a salt. The phosphorus trihalide is preferably phosphorus trichloride, and the molar ratio of phosphorus trihalide to formamide is preferably from 1 : 4 to 4 : 1. The reaction mixture may also contain phosphorous acid or water. The reaction is preferably carried out at 0-75‹ C.
Patent GB-1265169-A (GB)
IPC: C08J7/043
Filed: 1969-10-21
Abstract: 1,265,169. Coated hydroxyethylcellulose film. ITT INDUSTRIES Inc. 21 Oct., 1969 [28 Oct., 1968], No. 51472/69. Heading B2E. A process for producing a polymer coated hydroxyethyl cellulose (HEC) film, comprises extruding an alkaline HEC casting solution into a film-casting bath, passing said film through a first bath containing a solution of a softening agent and a second bath containing a solution of an anchoring agent, and applying a micro-thin coating of a hydrophobic polymer to the surface of the said film by passing the film through a bath containing a solution of said polymer, the HEC casting solution being subjected to an homogenising dispersion operation, on which the solution is maintained just below the point of incipient gelation of the solution and immediately extruded while it is still near the point of incipient gelation. In a preferred embodiment, the film is heated following application of the polymer coating. In a further embodiment the anchoring agent and polymer coating are applied from the same bath. Specified anchoring agents are melamine-formaldehyde resins and polyethyleneimines.
Patent GB-1265278-A (GB)
IPC: B26D7/06
Filed: 1970-04-24
Abstract: 1,265,278. Cutting apparatus. A. PIAZZA. 24 April, 1970, No. 19942/70. Heading B4B. A paper cutting machine comprises a pair of blades 28, 28<SP>1</SP> vertically movable on either side of a vertically movable clamp 29 within a frame 23, 23<SP>1</SP>, 24, 24<SP>1</SP>, a work-table 251 and an auxiliary table 9, Fig. 1, arranged to be moved between a first position in alignment with the work-table and a second retracted position. The blades 28, 28<SP>1</SP> are secured to knife beams (27), Fig. 7 (not shown), which are actuated by means of an hydraulic ram (36) via levers (34), (32). The clamp is actuated by means of an hydraulic ram 31; alternatively it may be actuated by a spring device and it may be replaced by two clamps positioned side-by-side between the two blades. The auxiliary table 9 is pivoted at 10 to the work-table, Fig. 1. In a modification, Fig. 2, the work-table 11<SP>1</SP> and auxiliary table 11 are formed in one piece, the tables being movable on a slide rod 12 via rollers (15, 17), Fig. 4 (not shown); a second auxiliary table may be mounted on the opposite end of the work-table.
Patent GB-1266077-A (GB)
IPC: C25D7/00
Filed: 1970-08-05
Abstract: 1,266,077. Magnetic structures. FUJI PHOTO FILM CO., Ltd. 5 Aug., 1970 [6 Aug., 1969], No. 37839/70. Heading H1H. [Also in Division C7] A magnetic recording medium comprises a non-magnetizable substrate, a metallic magnetic recording layer at least 0À05 Á thick plated thereon, a first protective film comprising nickel not more than 0À2 Á thick plated on the magnetic layer and a non-magnetic second protective layer comprising a rhodium film not less than 0À02 Á thick plated on the nickel layer. The substrate may be aluminium with or without a copper plating, alloys of copper, magnesium or aluminium, glass or polyesters such as polypropylene or polyethylene terephthalate. The substrate may be a disc, drum, tape, wire or card. The first protective layer may be pure nickel, phosphorus-modified nickel or nickel cobalt alloy. The second layer may be pure rhodium or an alloy containing a major amount of rhodium. The magnetic layer may be cobalt or cobalt-nickel alloy containing Cu, Ag, P, Zn, Rh, La, Ce, Nd or Sm. In examples, the plating solutions contain nickel or cobalt sulphate or chloride, and either boric acid and formaldehyde or NaH 2 .H 2 O and Na 2 C 4 H 4 O 6 .H 2 O. Specified rhodium salts are the phosphate, sulphate, sulphamate and borate. Current densities of 1À2 and 5 A/dm.<SP>2</SP> are specified.
Patent GB-1266627-A (GB)
IPC: G03B21/00
Filed: 1970-04-08
Abstract: 1,266,627. Cine projectors; cassettes. BELL & HOWELL CO. April 8, 1970 [April 21, 1969], No.16654/70. Heading G2E. A cine projector with a film-threading, a projection, and a re-wind mode includes a mounting module 10 which enables the use of a film supply from either a cartridge or an open reel, a cartridge being located in the operative position on surface 15 of the module by means of pins 16 which enter recesses in the cartridge base, a horizontal groove 20 which receives parallel ribs on the side wall of the cartridge, recesses 22 at each end of groove 20 which are engaged by latching tabs on the cartridge, and abutments 18 on surface 15 to prevent lateral movement of the cartridge, the module also including aperture 26 for a reel support spindle, and driven roller 50 which enters a side aperture in the cartridge to engage the reel flanges for re-wind. A recess 24 on top of the module receives a reel mounting adaptor with spindle positions for larger sized reels. Film threading means extend from slot 14 in surface 15 to enter an opening in the cartridge base. A retractable film guide 30 is movable into a horizontal position over slot 14 to direct the film end from an open reel to the threading means.
Patent GB-1289580-A (GB)
IPC: F02B75/22
Filed: 1970-08-20
Abstract: 1289580 I C engine valve gear OFFICINE ALFIERI MASERATI SpA 20 Aug 1970 [25 Aug 1969] 40088/70 Heading F1B An I. C. engine comprises two similar rows of cylinders, an overhead cam-shaft drive arrangement 4α, 4b, Fig.2, driven through chain or notched belt transmission devices 6α, 6b by a intermediate shaft 7, itself driven from the engine crank-shaft, the intermediary transmission including two drive gears 14α, 14b on the shaft 7 at positions in which the driven cam-shaft gears 11α, 11b are positioned between the cams pertaining to successive cylinders. The driven gears, the two corresponding cam-shafts and two rows of cylinders occupy symmetrical positions about a central axis to allow the use of identical cylinder heads. The shaft 7 may drive a water pump or ignition device.
Patent GB-1289944-A (GB)
IPC: G07F11/24
Filed: 1971-04-19
Abstract: 1289944 Article dispensing apparatus VENDO CO 19 April 1971 [26 March 1970] 23588/71 Heading A4T Mechanism controlling successive equal increments of rotation of e.g. a paddle structure 148 for dispensing cans A from a stack comprises an outer annular control member 222, an inner coaxial control member 214 and a rotor 208 coaxially between the outer and inner control members and coupled via shaft 202 to the paddles, one of the members, e.g. 222 being rotatable with respect to the other by a solenoid actuator 224- 232 whereby four lugs 234 on the outer member, normally opposite four openings 210 in rotor 208 to hold ball bearings 212 in locking engagement with recesses 220 in the inner member are shifted clockwise to permit the balls to pass through the opening into recesses 236 in the outer member, so that the rotor may turn anti-clockwise with the balls moving in recesses 236 and over lands separating the recesses 220 of the inner member. The turning of the rotor is effected by the weight of the cans acting on the paddles and/or on actuator pawl 240 engaging teeth 238 on the rotor when the solenoid plunger returns under spring 242. The eight recesses in the inner and outer members permit two paddles to release cans alternately from two stacks, four recesses to release cans from a single stack as described in copending Appltn. 48611/69 or a larger multiple of recesses to control the sequential release of cans from a plurality of stacks. Movement of the plunger on energisation of the solenoid actuates a cancel switch 246 via arm 248 to de-energize and release the solenoid plunger.
Patent GB-1296991-A (GB)
IPC: B05B15/68
Filed: 1969-02-28
Abstract: 1296991 Rolling mills ESSO RESEARCH & ENG CO 19 Feb 1970 [28 Feb 1969] 10778/69 Heading B3M [Also in Division B2] Apparatus for spraying back-up rollers 28 of a rolling mill with a lubricant to protect the work rolls 20 comprises a spray nozzle 31 which projects a divergent stream of lubricant, the arrangement being such that the nozzle can be moved towards and away from a roller and the flow-rate increases as the nozzle moves away and decreases as the nozzle moves nearer so that a uniform coating of lubricant per unit area is provided. The arrangement is provided to accomodate different widths of work passing between the work rollers 20, 21. The nozzle is reciprocated by a piston and cylinder 35 and moves in a shroud 39. A plate 40 with nylon edge 42 is provided to keep water from jets 30 away from the lubricant spray. The timing and area covered by the spraying can be controlled manually or automatically. It is arranged that no lubricant is supplied until the leading part of the workpiece is firmly gripped between the rollers and as the end of the workpiece approaches the spray is cut off so that the work rollers are free of lubricant for the next workpiece to be gripped. A carrier liquid, usually water, is sprayed continously and this helps to clean the work rollers. When it is required to begin spraying, the lubricant is introduced in to the water flow thus achieving a practically instantaneous cut off point for starting and stopping. A suitable liquid is stated to be an ester having a quaternary carbon atom in its molecule such as pentathaerithrytol tetraoleate in admixture with partially esterified pentaerithrytol and free carboxylic acids.
Patent GB-1297270-A (GB)
IPC: B23K9/12
Filed: 1969-12-23
Abstract: 1297270 Welding by fusion MATSUSHITA ELECTRIC INDUSTRIAL CO Ltd 23 Dec 1969 [26 Dec 1968] 62752/69 Heading B3R [Also in Division G3] An arc welding apparatus comprises two or more feed motors 3, 7 for feeding a consumable electrode wire 2, the motors being connected in parallel and having a slightly falling forceversus-feed-rate characteristic such that an increase in the wire feeding load (caused e.g. by bending of the guide tubes 6, 10) is shared between the two motors. In a circuit, Fig. 3, for controlling the motors the motors 21, 22 are connected in parallel and supplied from the secondary coil 17 of a transformer. A reference voltage circuit includes a variable resistor 30 by which the value of a reference voltage may be set and the difference between this voltage and the induction voltages of the motors is applied through an overvoltage protection circuit (34 ... 39 to a transistor 31. The emitter 33 and collector 44 of the transistor are connected in series with a pulse generating capacitor 46 and in parallel with a Zener diode 43 of a pulse generating circuit. A resistor 47, uni-junction transistor 48 and the primary coil 49 of a pulse generating transformer are connected in series across the Zener diode 43. The impedance of the transistor and the charging rate of the capacitor 46 are variable according to the applied differential voltage with the result that the frequency of the pulses generated and applied through rectifier 23 to the motors varies accordingly. The circuit controls both motors according to slightly drooping force versus feed rate characteristics e.g. lines M11, M21 in Fig. 4. If a different wire feed rate is required the reference voltage is reset by adjusting the resistor 30, the motor characteristics being thereby reset e.g. on lines M12, M22 in Fig. 4. In an alternative arrangement the arc voltage or a voltage proportional thereto may be impressed on the reference voltage circuit in place of the transformer secondary coil 26 so that the wire feed rate is varied in dependence upon the arc voltage.
Patent GB-1301837-A (GB)
IPC: G01M13/00
Filed: 1969-02-25
Abstract: 1301837 Testing steering wheels CLIFFORD COVERING CO Ltd 10 March 1970 [25 Feb 1969 17 April 1969] 9911/69 and 19574/69 Heading G1S A steering wheel 13 is tested by applying a rotation to the wheel about its axis, suddenly bringing the hub of the steering wheel to rest and measuring the torque applied to stop rotation of the wheel. The wheel is mounted on the splined end 12 of shaft 11 which is coupled to a lower shaft 15 through an electrical torque transducer 14. An arm 16 on the shaft 15 may be struck by a weight 18 sliding in a track 19 Fig.2 (not shown) to set the wheel into rotation, and is engageable with a stop 17 to bring the wheel to rest. The weight 18 may be accelerated by a piston and cylinder or by an A. C. linear motor; and the weight 18 may operate a micro-switch or photo-electric device to start the recorder coupled to the load cell. The torque on the wheel during acceleration and then deceleration is recorded and compared with standard traces Fig.3 (not shown).