baber/WOPTO huggingface dataset:
Patent GB-1519068-A (GB)
Title: Non-volatile memory device and method of making the same
IPC: H01L29/792
Filed: 1976-02-17
Abstract: 1519068 Non-volatile memory elements MATSUSHITA ELECTRONICS CORP 17 Feb 1976 [20 Feb 1975] 6218/76 Heading H1K A non-volatile memory element comprises a semiconductor substrate of one conductivity type, with source and drain regions of the opposite type formed in one surface and defining between them a channel over which are disposed superposed layers of different insulating materials constituting a charge storage structure, the source and drain regions consisting of lightly doped portions which are at least partly overlapped by said films and more heavily doped portions which are not. The MNOS structure of Fig. 2 is produced by first diffusing boron from doped oxide through apertures in oxide layer 6, and then through smaller apertures within the first apertures to form P and P+ regions 11, 12 and 13, 14 respectively, then forming aperture 61 in the oxide layer and producing within it a 30- 100Š thick layer 3 of thermal oxide and a much thicker layer 4 of silicon nitride, and finally depositing and patterning an aluminium layer to form source, drain and gate electrodes 8, 9 and 7. Because of the light doping (10<SP>16-17</SP> atoms/cc.) of portions 12 and hence of the overlying oxide through which charging and discharging of the storage structure occur the device exhibits long term stability.
Patent GB-955317-A (GB)
Title: A feed apparatus for tenter frames and the like
IPC: D06C3/00
Filed: 1962-02-19
Abstract: 955,317. Tentering-machines. A. LEIMER, [trading as ERHARDT.& LEIMER OHG]. Feb.19, 1962 [Feb. 22, 1961], No. 6256/62. Heading D1S. Apparatus for introducing fabric into a tentering machine, of the kind having lead-in cheeks 11 which move to follow deviations in the selvedge in response to control means 5, 14 operated by at least one feeler 1 associated with the selvedge, is characterized in that the output from the control means is dependent upon the magnitude of the deviations and upon the rate of change of the deviations. The feeler 1 is connected to the control 4 of a potentiometer 5 and is pressed against the selvedge by a spring 6 fixed between an extension 7 thereof and a rod 8. The feeler device is secured to the cheek 11 by a bolt 9 and an arm 10. A roller 12 supports the cheek 11 on a bearer 13 having a rack 22 mounted thereon. A D.C. motor 17 drives a pinion 19 pressed into engagement with the rack 22 by a spring 23 and is secured on an arm 20 pivoted to a bolt 21 fixed to the cheek 11. The potentiometer 5 is connected to a control 14 feeding the field windings of a D.C. generator 15 coupled with a three phase motor 16. The motors 16,17 and the generator 15 are connected to form a Ward-Leonard set. In operation, the cheek 11 and also the feeler 1 are moved by the pinion 19 in response to the output of the control 14. The electrical circuit is described.
Patent GB-590529-A (GB)
Title: Improvements in or relating to sponson constructions for mounting on the exterior ofa seaplane hull
IPC: B64C35/00
Filed: 1945-03-13
Abstract: 590,529. Dropping fuel tanks from aircraft. MARTIN CO., G. L. March 13, 1945, No. 6274. Convention date, Feb. 9, 1944. [Class 9 (ii)] [Also in Group XXXIII] Auxiliary fuel tanks 3, 4 and 5 are detachably secured to the sides of a seaplane hull by fittings 6 so that they may be jettisioned in flight. Each fitting comprises a pin 7, Fig. 8, which engages eyes in a bracket secured to the hull and a member 10 secured to the tank, and is withdrawable into a cylinder 8 by fluidpressure means such as the hydraulic system of the seaplane or an airbottle. The cylinders 8 of the various fittings are interconnected so that the pins are withdrawn simultaneously and all three tanks dropped together. A pad is provided between the top of each tank and the hull to prevent wear. The bottoms of the tanks carry plates 16, Fig. 9, having holes 17 engaged with tapered projections 15 on,brackets 14 secured to the chine strip 13, pads 18 being provided between the tanks and the chine strip to prevent wear.
Patent GB-690146-A (GB)
Title: Arrangement for electrical indication of liquid level inside liquid containers
IPC: G01F23/44
Filed: 1951-03-15
Abstract: 690,146. Electric indicating systems. KRISTIANSEN, T. March 15, 1951 [Jan. 3, 1951], No. 6363/51. Class 40 (i). In a float actuated liquid-level gauge, the float 3 slides on a guide tube 2 mounted within the liquid container 1, the tube being closed at its lower end and housing the counterbalance weight 6 connected to the float 3 by a cord 4 which rotates a wheel 5 in accordance with the liquid level. A further wheel 10 driven by wheel 5 through a pinion 9 carries two discs 12, 13 rigid and concentric therewith. One disc 13 carries in its grooved periphery a resistance coil 15 a portion of which is inserted in the circuit of a volt or ohm.-meter by a slider contact 22 'to indicate the liquid level. The other disc carries two contacts 16, 17 both of which are earthed and connected to one end of the resistor 15. These contacts are engaged by a further slider contact 21 at "empty" and "full" positions respectively and operate a visual or audible alarm.
Patent GB-672059-A (GB)
Title: Recording apparatus
IPC: G01D15/14
Filed: 1950-03-14
Abstract: 672,059. Recording-apparatus. SOC. CIVILE D'ETUDES D'INSTRUMENTS DE PRECISION. March 14, 1950 [March 14, 1949], No. 6306/50. Class 106 (iv). Recording-apparatus comprises means for moving a photo-sensitive band in front of a gate on which the luminous beams from mirrors set in motion by measuring apparatuses or electric repeaters are caused to converge, these mirrors being placed in the luminous path emitted by a lamp mounted in the apparatus, the photo-sensitive band-driving motor actuating the winder of an impulse mechanism adapted to transmit rhythmical electric impulses to one of the electric repeaters. Movable mirrors in electric repeaters or measuring apparatus 63, 66, 67 reflect a light beam from a lamp 62 through a slit 53 in a camera obscura on to a photo-sensitive film drawn from a spool 47 to a take-up spool 39 pinned to a spindle 28 which is driven at one of two speeds by an electric motor 5 according to the direction of rotation of the motor, which direction can be remotely controlled, which causes a pinion 14 meshing with two pinions 17, 18 carried by a rocking frame 15 to put either pinion 17 or 18 in mesh with pinion 29 to engage pinions 31, 32, or with pinion 20 respectively, to drive shaft 21 and, through two pairs of worms and worm wheels, the spindle 28 in the same direction but at a different speed. The shaft 21 is extended to actuate the winder of an impulse mechanism 7 through slipping clutch means and the mechanism 7 is adapted to send regular electric impulses to one of the repeaters to cause time marks to be recorded. The camera obscura is partly formed by a plate 51 and partition 52 in which is formed the slit 53 covered by a metal plate 54, Fig. 3, with a slit 56 terminating in eyes 57 across which are fixed strips 59 whose shadows produce reference lines. Each repeater has a transparent gate 65 formed in a pivotally mounted cover adapted to be set so that the corresponding mirror is either occulted or operative. The supply spool 46 is constantly braked by spring urged blocks 48 in barrels 49.
Patent GB-371533-A (GB)
Title: Scavenging two-stroke internal combustion engines
IPC: F01L1/14
Filed: 1931-02-28
Abstract: 371,533. Cylinders ; regulating; starting. VANNI, P. G., 11, Via Rugabella, Milan, Italy. Feb. 28, 1931, No. 6367. Convention date, March 3, 1930. [Classes 7 (ii), 7 (v), and 7 (vi).] In a two-stroke engine cylinder having exhaust and inlet ports at opposite ends, the scavenging air or mixture enters during each cycle first radially and then tangentially so that the cylinder is scavenged by an axial column which is succeeded by a whirling annular column. Whirling is effected by baffles 31 in a passage 9 supplied with compressed air or mixture and arranged around terminal ports 3, the initial radial flow being produced by the sudden fall in pressure when the ports 3, which are thin, are first uncovered by the piston. One or more of the baffles may be pivoted, as at 32, in the passage 9, adjustment being either fixed, by hand, or periodic, by an engine driven cam, or by airflow, the baffle being eccentrically mounted or spring loaded. The baffles may be mounted on transverse walls forming a chamber which can be moved axially within the passage 9, for regulating, and facilitating starting, by reducing the whirling of the air, as described in Specification 372,010. The area of the inlet ports 20, 201 is less than the total area of the ports 3.
Patent GB-923661-A (GB)
Title: Shirt collars
IPC: A41B3/06
Filed: 1961-02-22
Abstract: 923,661. Shirt collar linings. C. MOWBRAY. Feb. 9, 1962 [Feb. 22, 1961], No. 6407/61. Class 141. The interlining of a detachable or attached shirt collar comprises two parts 10, 18 having fitting points 23, 24 and sewn together along a line 25. A reinforcing patch 26 is bonded at each end of the part 10 and bone patches 27 to which are sewn collar bones 28 are fused to the patches 26. The part 18 may have a triangular or other extension 40 to overlap the extension 12 of the top collar lining 10.
Patent GB-733782-A (GB)
Title: Improvements in or relating to liquid blast circuit breakers
IPC: H01H33/75
Filed: 1952-03-13
Abstract: 733,782. Liquid-blast circuit-breakers. ALLISCHALMERS MANUFACTURING CO. March 13, 1952 [March 15, 1951], No. 6524/52. Class 38 (5). A liquid-blast switch comprises an arcextinguishing device having a substantially straight passageway 34 with a passage 35 extending radially from the straight passageway, a fixed contact 24, a movable contact 27 and an auxiliary electrode 43 located intermediate the ends of the device and connected by a resistance 49 to the fixed contact 24. In Fig. 3, the arcextinguishing device has a pressure-resistant shell 28 enclosing a pressure-generating chamber 32 and a stack of plates of oil-absorbent material. the plates having punched-out portions and being so aligned as to form the passageway 34 surrounded by a plurality of relatively steep pitched coaxial helical passages 35. In the portion 20 of the stack above the electrode 43, the passages 35 are of relatively large crosssection, since the arc initially drawn between the contacts 24, 27 when the contacts are separated may be a heavy-current arc. This arc is shunted by the resistance 49 and is extinguished by the pressure generated in the chamber 32 forcing the oil or liquid to flow out of the helical passages 35 in helical jets directed into the portions of the passageway 34 cleared by the contact 27 as it moves downwards. The portion 20 of the stack may be vented through radial passageways 37, longitudinal passageways 36 and bores 38. When the contact 27 is withdrawn through the electrode 43, the arc between them is in series with the resistance 49 and is extinguished in the portion 21 of the stack, which is adapted to extinguish low current arcs, the helical passageways being of smaller cross-section and not provided with lateral vents. In a modification, Fig. 4 (not shown), the passages 36, 37 are omitted.
Patent GB-966870-A (GB)
Title: Improvements in or relating to the control of resistive heaters
IPC: G05D23/24
Filed: 1961-02-22
Abstract: 966,870. Automatic temperature control. BELL AEROSPACE CORPORATION. Feb. 22,1961 [Feb. 23, 1960], No. 6540/61. Heading G3R. In an automatic temperature control system wherein the heater circuit comprises a resistive heater, a heater power source and a heater power control, the resistance of the heater is independently measured by means of an isolated circuit and the energization of the heater is varied so as to maintain substantially constant temperature in the heater. As shown, the heater circuit comprises a D.C.power source 1, a power control 3, an A. C. isolation means 4 and a resistive heater 2. The resistance of the heater 2 is measured independently by an isolated circuit comprising D.C. isolation means 11, an A.C. voltage source 12, and a computer 13 which computes any difference between the heater resistance and a preselected reference resistance and relays the error signal to to the power control 3 which varies the energization of the heater 2 to reduce the resistance difference to zero. The A.C. power in the measuring circuit is blocked from the heater circuit by the A.C. isolation means 4; similarly, the D.C. power in the heater circuit is blocked from the measuring circuit by the D.C. isolation means 11. The heater power source may be A.C., and the measuring power source D.C. (Fig.2, not shown); also, the heater power source may be A.C. of one frequency and the measuring power source A.C. of a second frequency (Fig.3, not shown), or the system may include time-sharing electrical energy of the circuits through the heater (Fig.4, not shown). The system may be applied to resistance cooling devices such as Peltier junctions.
Patent GB-287312-A (GB)
Title: Improvements in or relating to translating devices and amplifiers for periodic variations of electric potential
IPC: H03J3/06
Filed: 1927-03-09
Abstract: 287,312. Brown, W. J., and Metropolitan-Vickers Electrical Co., Ltd. March 9, 1927. No Patent granted (Sealing fee not paid). Thermionic amplifiers.-A valve amplifier 10 is coupled to a succeeding valve 12 or other potential-operated device by means of a tuned circuit comprising three condensers 22, 24, 26 connected in series across the coil 20. The plate connection is made to the point 28 between the condensers 24, 26 and the point 29 between the condensers 22, 24 is connected to the filaments. The grid of the valve 10 is connected through a balancing-condenser 31 to the junction of the condenser 22 and the coil 20, which junction is also connected by a grid-leak 33 to the filaments or to a bias battery. The opposite end of the coil 20 is connected to the grid of the valve 12, and the voltage applied thereby is that arising across the condensers 24, 26 and is therefore stepped up relatively to the voltage across the condenser 24 received from the plate of valve 10. Reaction due to inter-electrode capacity is substantially eliminated when the condensers 22, 24 are equal, and the balancing-condenser 31 is equal to the inter-electrode capacity. The non- symmetrical position of the earth-point 29 does not permit a perfect balance; and the amplification tends to fall off when the tuning-condenser 26 is at a low setting. Preferably in a multistage amplifier the above-described coupling is alternated with the known coupling in which part of the inductance 20 is included in the plate circuit. The oscillatory circuit may be tuned by the variable condenser 26, by variable condensers in shunt to the fixed condensers or to the whole coil 20, or by varying the inductance of the coil 20. Reference has been directed by the Comptroller to Specification 254,472.
Patent GB-524731-A (GB)
Title: Improvements in method and apparatus for drawing and combing textile fibres
IPC: D01G21/00
Filed: 1939-03-01
Abstract: 524,731. Drawing fibres; cored yarns. CONSOLIDATED RUBBER MANUFACTURERS, Ltd. March 1, 1939, No. 6679. Convention date, March 4, 1938. [Classes 120 (i), 120 (ii) and 120 (iii)] Drawing-apparatus adapted for fibres varying in length from very short asbestos to wool and cotton, and operating so as alternately to feed and draw successive distinct portions, as described in Specification 503,675, is provided with means for combing the portion being drawn in strokes synchronised with the gripping action. The apparatus operates on the same principles as that in the prior arrangement, cooperating grippers 35, 36 and 38, 39 being operated by a cam 47 so that roving R is gripped, fed and drawn thereby, a comb 46 being also similarly operated by the cam. The grippers 35, 38 move freely through a slot in a fixed plate 16, the co-operating grippers 36, 39 being carried by a plate 19 movable to and from the plate 16 against the action of springs 22. Guide pins 37, 40 projecting from the grippers 35, 38 engage the grippers 36, 39 so that effective gripping is ensured. The plate 19 also carries gripping-surfaces 33, 42 adapted to contact with surfaces 34, 41 on the plate 16. The eccentric 47 is in complete lateral engagement with the sides of the frames carrying the grippers 35, 38 and comb 46, but is in free vertical engagement so that the horizontal movement, whereby the grippers are advanced from the position shown to a position to grip the roving, is uniform, but the vertical movement is determined by adjustable stops 64, 66, 68, whereby the relative movement of the grippers 35, 36 and 38, 39, which determines the draft, and the movement of the comb are effected. While the feeding and drawing grippers are open, as shown, the roving is gripped by the grippers 33, 34, 41, 42, and the twist runs up to the latter pair, and subsequently runs slightly beyond and thereby facilitates the drafting. The cam 47 is driven through a clutch operable by a hand-wheel coupled with the brake-strap of the twisting-spindles by a link. The Specification as open to inspection under Sect. 91 comprises also a modification for covering a strand with the drawn material and when forming elastic yarns the core is led through an aperture in the gripper 40 so that twist is imparted thereto during covering. This subject-matter does not appear in the Specification as accepted.
Patent GB-208452-A (GB)
Title: An improved steering mechanism for vehicles
IPC: F16B7/14
Filed: 1923-03-08
Abstract: 208,452. Fornaca, G. March 8, 1923. Adjusting steering hand-wheels. - Re lates to telescopic shafts for steering wheels of the kind ccmprising a sheath enclosing a slidable post for the purpose of varying thei posi tion of the steering wheel relatively to the driver's seat. A spring-pressed paw 8 and a locking eccentric 9 are pro vided on the sheath and so arranged that when the pawl is in engagement with any one of a series o recesses 3 in the steering-post 2, the eccentric engages an other of the recesses The clicks of the pawl during the sliding of the post determine the positions in which the post may be locked to the sheath by means of the eccentric.
Patent GB-266542-A (GB)
Title: Improvements in wringing and mangling machines
IPC: D06F45/00
Filed: 1926-03-12
Abstract: 266,542. Whittaker Bros. (Accring- ton), Ltd., Duckworth, J., and Duckworth, J. A. March 12, 1926. Folding mangles and wringers.-In folding mangle in which a toothed wheel B on the bottom roller shaft, or otherwise connected to the flywheel, gears with a rotatable pinion C on the stationary frame and concentric with the pivot a of the frame A, there is provided a pawl D to hold the pinion C fast while the mangle frame is being raised or lowered, the pinion rotating idly when the mangle is being operated. As shown, the pawl is counterweighted and drops into engagement with the pinion on slightly tilting the frame before lowering or raising, projections on the movable frame engaging the pawl and freeing it just before the frame becomes stationary. In another form in which the pawl is not counterweighted, the pawl is controlled from the pedal operating the catch for locking the frames together. Specification 263,996 is referred to.
Patent GB-784910-A (GB)
Title: Curtain suspension device
Inventor: COOPER WILLIAM ERNEST
IPC: A47H15/02
Filed: 1955-03-10
Abstract: 784,910. Curtain runners. C. C. COMPONENTS, Ltd. March 1, 1956 [March 10, 1955], No. 6995/55. Class 52(5) The invention relates to the rollers of a curtain runner which comprises a U- shaped wire member 4 having inturned ends forming trunnions on which the rollers 5 are mounted. According to the invention each roller comprises the combination of an inner metal sleeve 8 surrounding a trunnion and having outwardly flared ends, a nylon or other outer annular part 9 surrounding the sleeve and having a recess on one face, and a plurality of antifriction balls 10 between the sleeve and the outer part, said balls being located in the recess by a flared end of the sleeve.
Patent GB-1421737-A (GB)
Title: Fuel injection nozzle units
IPC: F02M65/00
Filed: 1972-02-15
Abstract: 1421737 Fuel injection nozzles C A V Ltd 2 Feb 1973 [15 Feb 1972] 7051/72 Heading F1B [Also in Division G1] A liquid fuel injection nozzle having a spring loaded valve member (not shown) movable from a seat by fuel pressure comprises in a body 10 a plug 12, on a portion 15 of which are mounted one or more strain gauges 16 to give an electrical signal to indicate the spring force transmitted through portion 15. The strain gauges may be Piezoelectric or Piezo-resistive and the connections to them are made via drillings 17. Damping medium, e.g. an O-ring, may be located between the spring abutment of portion 15 and the wall of bore 14. In Fig. 2 (not shown) the plug 12 is a single part but in Fig. 1 it consists of outer portion 13 and portion 15.
Patent GB-269303-A (GB)
Title: An internal combustion turbine engine
IPC: F02C5/02
Filed: 1926-03-15
Abstract: 269,303. Orwin, T. P. March 15, 1926. Combined - flow type; working-fluid supply. - An internal-combustion turbine comprises a rotor A having peripheral pockets C which register with stator pockets F to form explosion chambers and which exhaust through ducts G to a bladed turbine on the same shaft. The charge is admitted to the explosion chambers through stator ports H and ports E in a disc secured to the rotor. Spring- loaded pistons D may be arranged in the bases of the rotor pockets to obtain slow running. The member B may be the rotor, and the member A the stator.
Patent GB-265802-A (GB)
Title: Improvements in valves and taps
IPC: F16K1/50
Filed: 1926-03-15
Abstract: 265,802. Jones, A., and Tylors (Water &. Sanitary), Ltd. March 15, 1926. Lift valves.-A screw actuated lift valve has the working parts assembled as a complete unit in a cylindrical container adapted to be screwed into a cast iron casing having a porcelain enamel finish both inside and outside. The casing a is formed without any cavities in which water might remain and become stagnant and has a screwed recess b to receive a gun-metal seat c. The container g which is screwed into an aperture at the top of the casing so as to cause a flange h to bear on a washer i is cut away at the bottom to form two projections having flat sides engaging flat sides on an elongated nut r carrying the valve face s. The actuating spindle has a screwed part v engaging the nut and a collar w housed in a recess formed between a shoulder o in the container and a washer m held in place by the lower part l of a stufting box. The upper part of the spindle is squared to receive a handle x provided with a skirt arranged to cover the top of the container. The seat c may be formed integrally with the tail piece d and screwed into the casing. The projections may be formed on the nut and arranged to engage flats on the inner casing.