baber/WOPTO huggingface dataset:
Patent GB-1443434-A (GB)
Title: Semiconductor devices
IPC: G11C29/00
Filed: 1973-01-22
Abstract: 1443434 Electronic timepieces MULLARD Ltd 11 Oct 1973 [22 Jan 1973] 3173/73 Heading G3T [Also in Division H1] Timers are provided in which the charge state of a charge-storage region of a semi-conductor device is varied with time under the influence of the radio-active decay of an element associated with the device. The devices described are IGFETs in which charge on a charge-storage region of the gate is varied with time by the #-decay of an element incorporated in the gate to yield a product which is stable or which has a long half-life. α-emitters may instead be used. Fig. 1 shows a p-channel depletion -mode silicon device with thermal oxide 3 and deposited silica 4, 5. The gate electrode 6 is of high conductivity polycrystalline silicon or of molybdenum. Radio-active silicon, nickel, or tritium is ion-implanted in a region 12 at the top of the gate either before or after the provision of a potential-equalizing metal layer 13. Layer 13 and ohmic source and drain contacts 9, 10 are of aluminium. The diffused source and drain could be replaced by surface barriers. Use of either <SP>32</SP> 14  Si or <SP>63</SP> 28  Ni in region 12 enables the transistor to be used for ca 10 years at a substantially constant rate of change of gate charge. An initial gate charge, which in some operational modes may be replenished to reset the timber, may be provided by avalanching the source or drain junction to inject hot carriers into the gate storage region. In other cases tunnel charging may be used. The metallization 13 may be used in charging. There need be no gate electrode since charge may be stored at e.g. an oxide-nitride interface in "gate" insulation. The radio-active implant is placed so as not directly to influence the semi-conductor, and to improve this isolation a conductive gate electrode may extend on to thicker field insulation and the radio-active element be there provided. Uses envisaged are for timers operating over seconds, hours, days, months or years e.g. electronic watches, washing machine and cooker timers, and time release locks on bank vaults and strongrooms. The amount of radio-active element and its nature (half-life) are chosen to fit the application. The device may form part of an integrated circuit or part of a CCD or BBD or other charge transfer structure.
Patent GB-775915-A (GB)
Title: Improvements in or relating to machine for folding bedsheets and other articles in soft and pliable sheet form
IPC: B65H45/101
Filed: 1955-02-03
Abstract: 775,915. Folding sheets. JESUS, H. L. L. Feb. 3, 1955 [Feb. 4, 1954], No. 3177/55. Class 42 (2). [Also in Group XXX] A 'sheet folding machine comprises a feed conveyer A, Fig. 1, a multiple tape delivery conveyer B, and a multiple tape auxiliary conveyer C, the tapes of which are interleaved in those of conveyer B and which moves in the opposite direction thereto. One of conveyers B, C (as shown, conveyer C) is movable from the Fig. 1 position to the Fig. 4 position so that a sheet X coming from conveyer A can be displaced first in one direction and then in the other so as to form a fold at Z, Fig. 4, the movement of conveyer C being controlled automatically by detector means D sensitive to the passage of sheet X. In the Fig. 1 arrangement, detector D comprises a feeler 13 which when moved by the leading edge of sheet X closes a contact 14 to energize a solenoid 12 which moves conveyer C to the Fig. 1 position. When the trailing edge of sheet X passes feeler 13 the solenoid is deenergized and conveyer C moves to the Fig. 4 position. The position of detector D along conveyer A can be varied to vary the position of the fold along the sheet. In another arrangement a series of detectors Da1 to Da4, Fig. 8, arranged along conveyer A are connected as shown to a series of detectors Db1 to Db4 arranged along conveyer B or C, the fold being formed on the line Z, whatever the length of the sheet. In another arrangement, Fig. 9, a detector 23 is mounted on an arm 25 pivoted at 26 and engaging a cam 27. When detector 23 is moved by the leading edge of the sheet it deenergizes solenoid 12 and also a clutch-controlling solenoid 28. The latter actuates a singlerevolution clutch 29 which causes cam 27 to rotate one revolution. Over arc 27a, arm 25 remains stationary, while over arc 27b arm 25 is moved rearwardly towards the dotted line position so as to traverse the sheet; solenoid 12 is de-energized, and folding takes place, when detector 23 clears the trailing edge of the sheet. By appropriate selection of the position of the detector on conveyer A, and of the relation between the speed of conveyer A and the speed of traverse of arm 25, folding is effected at the same fraction of the length of each sheet.
Patent GB-1274621-A (GB)
Title: Jack plugs
IPC: H01R24/58
Filed: 1971-01-27
Abstract: 1,274,621. Two-part couplings. SEALECTRO Ltd. and S. T. DEAKIN. 27 Jan., 1971, No. 3300/71. Heading H2E. An integrally formed jack plug comprises two parts 2, 3 moulded from flexible insulating material and hinged by a web 4. The combinations of lug 11 with receiving recess 12, tapered recess 15 with undercut knob 16 and undercut step 19 with undercut step 20 releasably lock the two parts together. Bodies 5 and 6 close to form a hollow cylindrical body for an electrical component 26. Half spigot 7 has channels 21, 22 formed in face 13 which abuts face 14 of half spigot 8, when in the closed position. Passageways formed by these channels have apertures 23, 23a and since the apertures are at the points of bends in the passageways, a bend 29, 30 in each conductive member 27, 28 extending from the component 26 is exposed and provides electrical contact with a cylindrical contact 31, 32.
Patent GB-1373431-A (GB)
Title: Sliding window panels of vehicle body structures
IPC: E05F11/38
Filed: 1972-01-25
Abstract: 1373431 Vehicle window NISSAN MOTOR CO Ltd 25 Jan 1972 [5 Feb 1971] 3502/72 Heading E1J A curved window pane 18 is mounted for slidable movement along a curved path 28 by at least two rollers 21 mounted on a curved track 19, the track being pivoted at its upper end in a vehicle's window well and adjustably mounted (e.g. by a screw 23) at its lower end, the centre of curvature 01 of the path 28 being coincident with that of the track, the radius of curvature of the track being greater than that, R 1 , of the window, the radius of curvature R 3  of the path 28 being greater than that of the track, and the centre of curvature 0 1  of the track being spaced from that, 0, of the window. A prior art sliding window, Fig. I (not shown), has the centres of curvature of the track, the path and the window coincident and the radii of curvature of the window and path the same as each other and greater than that of the track. For Figure see next page
Patent GB-105066-A (GB)
IPC: B23Q35/10
Filed: 1917-03-09
Abstract: 105,066. Rouget, F. L. A. March 9, 1916, [Convention date]. Void [Published under Sect. 91 of the Act]. Drawings to Specification. Projectiles.-Shells are turned at one setting in a lathe having a saddle fitted with a compound rest carrying tools both at the front and the rear of the work, by means of several top slides, some of which are controlled by cams to turn the nose and conical parts at the rear. The groove for the driving-band and neighbouring parts are turned by tools carried by lever rests pivoted above the work, some of which are cam-controlled. The knurling is effected as regards the longitudinal grooves by knurls in opposed lever rests connected by differential screws, and as regards the circumferential grooves by a knurl on one of the beforementioned lever rests. The tools are set with reference to gauge blocks used in conjunction with a standard cylindrical bar placed between the lathe centres. Some of the rests may be dispensed with if the turning is performed in a greater number of steps. The drawings do not clearly illustrate the invention.
Patent GB-595298-A (GB)
Title: Improvements relating to the arrangement and operation of control surfaces for aircraft
IPC: B64C13/02
Filed: 1944-02-25
Abstract: 595,298. Controlling aircraft. ARMSTRONG WHITWORTH AIRCRAFT. Ltd., Sir W. G., WATSON, H. R., and HUGHES, C. K. T. Feb. 25, 1944, No. 3504. [Class 4] A , control surface 14, more. particularly for a tailless aircraft, carries a tab 16 which combines the characteristics of a " spring " tab and a " geared " tab, being connected to an arm 17, operable by the pilot and connected to the control surface by a two -way spring member 19, through members 23, 24, 25, 26, 27, which react upon a stationary portion of the aircraft, other than the hinge for the control surface. In the embodiment shown, the lever 26 is fulcrumed at 28 to a screwed rod 29 engaging a sleeve 30 mounted in a portion 12 of the fixed aerofoil member, and trimming of the tab 16 may be effected by adjustment of the screwed rod 29. The link 23 may carry a projection 32 engageable with limit stops 33.
Patent GB-249975-A (GB)
Title: Improvements in spinning and like frames
IPC: D01H9/04
Filed: 1925-02-07
Abstract: 249,975. Boyd, T. A., Boyd, H. A., Boyd, J., and Boyd, Ltd., J. & T. Feb. 7, 1925. Spindle apparatus; spindle rails; doffing-arrangements; thread-severing arrangements; spindledriving apparatus. - In cap and ring spinning machines the tubes or spindles are mounted on a rotary carrier 11, and a longitudinally-movable rod 25 is mounted in the axle of the carrier and operates yarn-severing mechanism. The tubes or spindles are mounted on platforms 11<1>, 11<2>, extending from the carriers, so that the wharls 13<1>, are below the bearings 14 and, when the tin roller is reversed by hand when the bobbins are full, a few turns are unwound from the full bobbins to provide the necessary slack to permit the rotation of the platform, and the driving belts pass automatically on to loose pulleys 17 carried on a rail 7. Upon restarting, a notch in the bobbindriving disc 15 engages the yarn and winds a few turns in a groove 15<3>. The yarn is guided by a rod 20 mounted on the rail 7 into the path of the yarn-severing devices which comprise gapped plungers 21 connected to the rod 25 adapted to sever the yarn against the edges of passages in tubes 23, Fig. 7, on the carrier. The Provisional Specification states that the longitudinal rod may serve to operate other doffing devices than yarn severing devices.
Patent GB-1167445-A (GB)
Title: Improvements in or relating to Devices for Signal Recording and Playback Equipment
IPC: G11B15/66
Filed: 1968-01-23
Abstract: 1,167,445. Tape reels. GRUNDIG E.M.V. ELEKTRO MECHANISCHE VERSUCHSANSTALT, INH. MAX GRUNDIG. 23 Jan., 1968 [23 Jan., 1967], No. 3547/68. Heading B8M. [Also in Division G5] A reel, for use in auto-threading tape recording apparatus, see Division G5, comprises a core 6 and concentric annular support 8 mounted for limited relative rotation and defining a space 9 between them to accommodate a leader 11 attached to the core and coupling members 10, 19 on the leader and a cassetted tape respectively. The core is initially driven by a clutch until a peg 32 on the upper reel portion (7, Fig. 3, not shown) engages the end 31 of a groove 29 in the core whereupon both portions rotate together. An outwardly-biased, pivoted sector 28 is freed from a fixed spring catch 33a and closes the gap 27 as winding proceeds. Resilient material 35 at the groove ends reduces shock.
Patent GB-1109743-A (GB)
Title: Scale removal
Inventor: BELL WILLIAM EDWARD
IPC: F28G9/00
Filed: 1966-01-26
Abstract: Scale containing iron oxides, copper and copper oxides is removed from e.g. boiler and heat exchanger tubes, and the cleaned surfaces passivated using a neutral solution of ammonium citrate. The process is then continued with a pH of at least 9 until the copper content of the solution is constant. The solution may be agitated with air or nitrogen. Oxidizing agents, e.g. air, oxygen or nitrogen tetraoxide or the sodium, potassium or ammonium salts of persulphates, perchlorates, bromates and nitrites, potassium permanganate, or the sodium salt of nitrophenylsulphoric acid, may be added to the solution.
Patent GB-1087648-A (GB)
Title: Novel steroid compounds, and processes for their preparation
IPC: C07J71/00
Filed: 1965-07-22
Abstract: A novel estra-1,3,5(10)-trien-17-one of the general formula <FORM:1087648/C2/1> wherein either R7 is a hydrogen atom and R8 is a halogen atom, or R7 is an alkyl group and R8 is an alkoxy group, is obtained by reacting the corresponding 17b -hydroxy-estra-1,3,5(10)-triene with an oxidizing agent, e.g. chromic anhydride.
Patent GB-465678-A (GB)
Title: Improvements in or relating to spectacle frames
IPC: G02C5/22
Filed: 1936-02-06
Abstract: 465,678. Spectacles. WISEMAN, M. Feb. 6, 1936, No. 3662. [Class 97 (i)] In a non-metallic or partly metallic spectacle frame, each side piece 7 has moulded or let into it a metal member 9 extending from its end between the bifurcations 5, 6 of a lug 4 extending from the rim 3, and a hinge pin 11 passes through the bifurcations and the member 9. The metal member extends beyond the pin 11 and its end 12 is shaped to abut against a seating formed in the lug so as to limit the opening of the side piece. Alternatively a stop may be formed by shaping the end of the piece 7 to abut against the extremities of the bifurcations 5, 6. The member 9 may be made integral with a reinforcing wire 8.
Patent GB-100185-A (GB)
Title: Improvements in or relating to Road Vehicles.
Inventor: ARATO ACHILLE
IPC: B62D13/02
Filed: 1916-03-14
Abstract: 100,185. Arato, A. March 15, 1915, [Convention date]. Adjusting centrally-pivoted axles for steering; deflectable axle-ends. - Steering-gear for trailers comprises a connecting-pole T pivoted to the rear of the tractor A and to the pivoted front axle E of the trailer B, and a rope or chain H passing round a loose pulley G and attached at its ends to the tractor. An endless rope, &c., I passes round the pulley G and a wheel L, round which passes a third rope or chain M, which controls a wheel N fixed to the front axle. By these means, relative movement of the pole T with respect both to the trailer and tractor effects steering-adjust. ment of the. front axle. The pulleys or wheels G, L, N may be replaced by links. The device may be applied to trailers having a fixed front axle with deflectable ends, by transmitting the motion to a lever on the usual steering-post.
Patent GB-101115-A (GB)
Title: Improvements in or relating to Internal Combustion Engines.
Inventor: ADDYMAN ERIK THOMAS WATERHOUSE
IPC: F02F11/00
Filed: 1916-03-14
Abstract: 101,115. Addyman, E. T. W. March 14. 1916. Stuffing-boxes, substitutes for.-In an internalcombustion engine in which the front end of the cylinder is separated from the crank case by an oscillating plate a, the joint between the oonnecting-rod and the plate comprises a member b which turns in a cup-shaped member d. The member b has projections b<2> or projections b<2> and annular projections d<3>, which engage one or more recesses in the cup-shaped member d. Alternatively, the projections may be on the member d, and the recesses in the member b. The member d may be dispensed with. A modification is described in which a flat plate a is used.
Patent GB-463938-A (GB)
Title: Improvements in and relating to wireless communication systems
IPC: H04B1/56
Filed: 1935-07-04
Abstract: 463,938. Wireless signalling. HONEYBALL, L. L. -K. July 4, 1935, No. 3858/37. Divided out of 462,459. [Class 40 (v)] A two-way wireless transmitter and receiver comprises an oscillating circuit formed by a loop aerial la, 1b; 2a, 2b a valve 6 and condensers 27, 42, modulating potentials being supplied to this circuit for transmission and quenching oscillations for giving super-regenerative reception. One branch of the loop aerial is connected to the anode of the valve 6, the H.T. supply being to the lower end of the branch through a telephone receiver P, or amplifier D. The grid of the valve 6 is connected to the other branch of the loop aerial and the connection from the lower end of the branch includes the secondary of the modulating transformer N. Included in the circuit from the lower ends of the loop is the superregenerative quenching circuit comprising inductances Q1, and Q2 and condensers C1, C2. It is stated that the super-regenerative quenching has little effect on the operation of the arrangement as a transmitter. Instead of having a modulating transformer N, a microphone M may be connected as shown in the place of an automatic biassing resistance: To enable telegraphy to be transmitted additional inductances T1, T2 are included in the quenching circuit and normally short-circuited by mechanically coupled keys K1, K2 ; when these are depressed the additional inductance put in circuit reduces the quenching frequency into the audio range to act as a modulating potential. The arrangement may be made to function as a re-transmitter by coupling the output of the amplifier D back to the modulating transformer N. In a modification, the modulating and receiving circuits are connected through a change-over switch to the aerial oscillator so that one is cut out while the other is operating. Specifications 294,946, [Class 40 (v)], 462,459, and 462,529 are referred to.
Patent GB-621253-A (GB)
Title: Improvements in or relating to electric protective arrangements
IPC: H02H3/30
Filed: 1947-02-11
Abstract: 621,253. Protective cut-out systems. GENERAL ELECTRIC CO., Ltd., and FITZPATRICK, J. A. Feb. 11, 1947, No. 3968. [Class 38(v)] In a system for the protection of a polyphase bus-bar system, a relay trips all the circuit breakers of the feeders connected to the busbars under bus-bar earth fault conditions. In the circuit biased against incorrect operation on through-fault conditions. In the circuit shown, five threephase feeders 7-11 are connected to a bus-bar system 1 by circuit breakers 2-6. Each conductor of each feeder has a current transformer; the secondary windings of the three transformers 12-14 associated with each feeder being star-connected with their star point 15 connected to a bus-wire 16. The other sides of the secondary windings are connected to the tapped primary winding 18 of a summation transformer 17 and the end of this winding is connected to a further buswire 19. The current which exists in the bus-wires 16, 19, under earth fault conditions in the protected zone is the algebraic sum of the currents in the fifteen current transformer windings and this current effects the energization of the operating coil 25 of the relay 26. The secondary winding 28 of each summation transformer 17 is connected to a rectifier 29; the rectifiers 29 being connected to bus-wires 31, 32 across which is connected the restraining or biasing winding 30 of the relay 26, which is thus biased against operation in proportion to the total through-current of the bus-bar system. Switches 33, 34 operated at the same time as the circuit breaker with which they are associated, isolate the individual circuits when a feeder is not in use, and these switches may be selectors working in conjunction with additional bus-wires when the protective arrangement is applied to a duplicate bus-bar system. Resistances 35 are provided between the rectifiers 29 and the bus-wire 32, so that if a rectifier becomes faulty it does not prevent sufficient bias being obtained from the other summation circuits. Further current transformers and summation circuits may be used to operate a check relay. In Fig. 1 (not shown) the rectifiers 29 are connected in series with each other. Specifications 460,046 and 540,973 are referred to.
Patent GB-429379-A (GB)
Title: Improvements in or relating to the manufacture of wallboard
IPC: B28B19/00
Filed: 1934-02-07
Abstract: 429,379. Moulding wallboard. PARFITT, A. W., Stafford House, Norfolk Street, Strand, London.-(Gypsum, Lime & Alabastine, Canada, Ltd. ; Paris, Ontario, Canada) Feb. 7, 1934, No. 4002. [Class 87 (ii)] Wallboard 6 consisting of a cement core enclosed by paper liners 3, 4, is formed by sheeting rolls 1, 2 and is carried along on a belt 7 and supported by rolls 10. Oppositely-disposed bevels are formed across the sheet by exerting pressure on the upper surface against a supporting roll 9 at successive portions of the sheet whereat it is subsequently severed. The pressure is exerted by a plate 26 held up by a spring 27 and intermittently pressed down by cams 24 on a shaft 21 rotated through a variable-speed drive. The roll 9 projects slightly above the normal height of the belt 7 so that it co-operates with the plate 26 to form a curved depression on the underside of the sheet. Transverse bevels are formed by cutting at the centre of the depression. A cam portion 25 operates a spring- loaded plunger mounted in the plate 26 to form a mark on the upper surface of the sheet to indicate where the sheet is to be cut. The longitudinal margins may also be bevelled by arranging plates 5 on the upper part of the roll 2, and the bevels 6<1> so formed are supported by short rolls 11 for such a distance as is required for the material to harden. Bevels may thus be formed on all four edges. The rolls 11 are mounted in bearings 12 and their inclination can be adjusted for different thicknesses of wallboard by rotating supporting cams 13 which are coupled together by chain gearing. The material used may be a slurry of hydrated calcined gypsum and the lower liner may be turned over to enclose the edge of the board and to adhere to the upper liner.