baber/WOPTO huggingface dataset:
Patent GB-102948-A (GB)
IPC: F21H3/00
Filed: 1916-12-11
Abstract: 102,948. Mouwerik, P. van, and Bal, C. W. Dec. 20, 1915, [Convention date]. Mantles.-A support for mantles during burning-off and collodionizing comprises a single piece of metal or other material having holes 2 at equal distances apart for the insertion of the mantle rings, and provided with a U-shaped border 6 on one or both edges and with transverse slots 7 and upright ribs 8 so as to prevent bending and allow for expansion during burning-off. In one form, each hole in the support has internal lugs 3 and slots 4 for enabling the mantle ring to be secured by inserting it and partly rotating it, and the lugs 3 have flat or bent extensions 5 for engaging the top of the ring and preventing it from rising during collodionizing.
Patent GB-872462-A (GB)
Title: Improvements in or relating to linkage for opening and closing folding car heads
IPC: B60J7/12
Filed: 1958-11-14
Abstract: 872,462. Folding hoods. PADDINGTON, A. L. Jan. 12, 1960 [Nov. 14, 1958], No. 17827/58. Class 108(1). A folding hood comprises front and rear cant rails B, C hinged together at Z and to the main pillar F at Y. The control linkage comprises a main link E hinged at one end at W to the body adjacent the hinge X for the main pillar F, and at the other end to the rear cant rail C at V. The control link D is hinged at T to the link E and at U to a rearward extension of the front cant rail B. Subsidiary hoop sticks H, J and K may also be provided.
Patent GB-1357686-A (GB)
Title: Fourier transform rf spectrometer method and apparatus
IPC: G01N33/46
Filed: 1972-04-18
Abstract: 1357686 Spin resonance spectrometers VARIAN ASSOCIATES 18 April 1972 [19 April 1971] 17835/72 Heading G1N In an RF spectrometer of the type where a plurality of resonance lines are simultaneously excited and the resulting composite resonance line signal is analyzed to separate the individual lines, the ratio W/Ho, i. e. the ratio of RF frequency # W to polarizing magnetic field Ho, is scanned through a range of values at a rate sufficient to excite the resonance lines simultaneously. Either the value of W or of Ho may be swept to achieve this scanning; the invention reduces the peak power of the RF energy needed compared with known systems where the energy is pulsed. In Fig. 1 the sample being investigated is within probe 2, and is subjected to a polarizing field Ho by coil 32 and to RF energy from circuit block 3. A scanning generator 8 causes either Ho or the frequency W delivered by circuit block 3 to vary, depending on the position of switch 9. The repetition rate of the scanning is preferably such that resonance does not collapse between successive scans. The scan rate, and the range through which W/Ho is scanned, is controlled by programmer 17 which also synchronizes computer 13. In this computer the audio signal given by phase detector 12 representing a composite frequency spectrum of the sample is averaged at 18 over several scans by a sampling and memory arrangement to reduce noise in the usual manner, and then Fourier transformed at 21 to separate the resonance frequency components in the composite signal. At the same time the variations in Ho or W are fed to A/D converter 22, stored at 23 in the same manner as the composite signal is stored in averages 18, and then Fourier transformed at 24. The two transformed signals are multiplied at 25 to give an output corresponding to the sample spectrum required for recording at 14. In a modification, Fig. 7, the cross correlation of signals by multiplier 25 of Fig.1 takes place before computer 13. As a result only one multichannel storage unit and one Fourier transformer is required. The invention is applicable to gyromagnetic resonance, nuclear resonance, electron spin resonance, nuclear quadrupole resonance or micro-wave spectrometers. The efficiency is at a maximum when the scan duration is equal to the scan repetition rate.
Patent GB-121316-A (GB)
Title: Improvements in and relating to Gas and Air Reversing Valves for Steel Melting and other Furnaces.
Inventor: RICHARDS EDGAR JOSIAH WINDSOR
IPC: F27B3/26
Filed: 1917-12-03
Abstract: 121,316. Richards, E. J. W., and Kane, W. Dec. 3, 1917. Multiple-way values; actuating-mechanism. - Gas and air reversing valves for regenerative furnaces are constructed with a cylindrical chamber or bell 1 having a diametrical division wall 2, which is seated in an annular water trough 3 having cross troughs 4 dividing the inlet and outlet ports. The chamber 1 is rotated by gearing, and is lifted or lowered at the same time by the action of inclined portions 6 of an interrupted flanged ring 5 attached to it which ride over rollers 7 mounted on fixed supports. The division wall 2 is thus lifted out of one cross trough and lowered into the other. Spring devices are provided to take the shock when the chamber 1 is lowered. These may consist of blade springs 15 adapted to bear on the rollers 7, or of spring-mounted rollers on which the flanged ring 5 rests when in its lowered position.
Patent GB-273773-A (GB)
Title: Improvements in apparatus for radio telegraphy or telephony
IPC: H01L35/00
Filed: 1927-07-05
Abstract: 273,773. Soc. Anon. Etablissements Herbelot et Vorms. July 5, 1926, [Convention date]. Drawings to Specification. Vacuum tubes.-The Specification as open to inspection under Sect. 91 (3) (a) comprises mounting a thermo-electric battery on the bulb of a thermionic valve. This subject-matter does not appear in the Specification as accepted.
Patent GB-837278-A (GB)
Title: Improvements in or relating to variable resistance devices
Filed: 1956-06-08
Abstract: 837,278. Electric transducers. SIEMENSSCHUCKERTWERKE A.G. June 8, 1956 [June 9, 1955], No. 17875/56. Class 40 (1). [Also in Groups XXXVI and XXXVII] A variable resistor comprises a carrier having at least one electrically-conductive solid coating formed on the surface and means for reversibly varying the overall amount and/or the chemical composition of the material constituting said coating so as to vary the number of charge carriers and hence the electrical resistance perunit length of said coating. Fig. 1 shows an evacuated glass tube 1 sealed by metal discs 2, 3 fused to the end. A zinc coating 4 is deposited upon the inside of the glass and is connected to the discs 2, 3 by coatings 5, 6 of metal such as platinum. The resistance of the coating 4 is dependent on the value of the current; increased current tending to increase resistance by evaporation, reduced current tending to decrease the resistance by allowing condensation. In Fig. 2 (not shown), the tube is made of carbon, graphite or silicon compounds so as to provide a fixed resistance path in parallel with the coating. The evaporating temperature of the coating should be substantially lower than the thermal ionization temperature; cadmium and zinc being especially suitable. Carbon may also be used. In Fig. 3, the coating 18 is heated by radiation from a heater winding 21, the insulators 19, 20 of which are screened from condensation. Uniform heating of the coating may be effected by reducing the pitch of the winding 21 at its ends. This also tends to prevent condensation on the insulators. Indirect heating by windings on the outside of the tube or by dielectric loss in the tube or by highfrequency heating may also be used. In Fig. 7, metal evaporated from the directly-heated coating 68 condenses on the indirectly-heated plate 69 but may be re-deposited by energizing the heating winding 70. In a similar embodiment, Fig. 8 (not shown), two concentric directly-heated resistors according to the invention are used alternately by means of a changeover switch. In Fig. 9, current is distributed between a directly-heated resistor 96 fluted to increase its effective length and an adjacent plane resistor 91. Impedances 99, 100 are connected in series with the fluted resistor. Fig. 10 shows a coated tube closed at the ends by a cap 106 and a piston 111. The increase in pressure on the piston 111 due to excessive current in the coating 108 forces the diaphragm 107 outwards, thus opening contacts 110. Fig. 6 shows a chemical embodiment in which the resistance of an iron coating 46 is controlled by oxidization or reduction caused by the respective passage through the tube 45 of oxygen or hydrogen controlled by a three-way cock 49.
Patent GB-1033458-A (GB)
Title: Improvements in or relating to swimming pool monitors
IPC: G08B21/08
Filed: 1965-04-28
Abstract: 1,033,458. Transistor circuits. SONUS CORPORATION. April 28, 1965 [April 28, 1964], No. 17948/65. Heading H3T. [Also in Division G4] A swimming pool monitor may be switched from an alarm " A " condition in which disturbances in the pool actuate an acoustic alarm, to a monitor " L " condition in which sounds in the vicinity of the pool may be monitored. In the " A condition, switches 54a, 54b restrict the bandwidth of amplifier 12 to a range of 500-900 cycles extending upwardly from 2500 c/s. Sounds from hydrophone 10 are amplified by amplifier 12, and the negativegoing half-cycles of the output signal are passed by diode 70 to switch a bi-stable circuit 76, 92 to the state in which transistor 92 conducts. When transistor 92 conducts relay 100 operates, closing contact 100a to apply H.T. to transistor 112. Switch 54e completes a positive feedback path between transistors 122 and 112, and on the closing of contact 100a this circuit oscillates to produce an output at speaker 120. The alarm signal persists until cancelled by switch 94. In the " L condition, switches 54a, 54b connect larger capacitors in circuit, and the amplifier 12 passes all speech frequencies. Switch 54e breaks the positive feedback path and transistors 112, 122 form a further twostage amplifier with negative feedback over capacitor 136. In this condition any signals picked up on hydrophone 10 are amplified and fed to loud-speaker 120. The system also gives an indication of intruders in the pool vicinity.
Patent GB-1278749-A (GB)
Title: Improvements in tamper-resistant sealing systems
Inventor: BUERGERS WILHELM
IPC: G09F3/03
Filed: 1971-05-28
Abstract: 1278749 Fuel elements EUROPEAN ATOMIC ENERGY COMMUNITY 28 May 1971 [16 June 1970] 17951/71 Heading G6C [Also in Division B6] In a nuclear reactor fuel pin assembly the pins are secured to the supporting spider by tamperproof seals. The fuel pin 11, Fig. 3, is secured to the spider 12 by the nuts 13, and the end 16 of the retaining bolt 10 is covered by the marked member 15. The marking inhomogeneities in the member 15 are checked by means of an ultrasonic measuring head to determine whether there has been interference with the seal. The markings may be particles of tungsten, iron or copper or may be cavities formed within the material. The base material may be a resin or a sintered metal powder. In an alternative form, Fig. 1, a knot in a sealing ribbon may be contained within the cavity formed between the members 1 and 2 locked together by the resilient hooks 3. If the seal is forced open the hooks 3 break and the distribution of markings is disturbed.
Patent GB-578595-A (GB)
Title: Improvements in or relating to safety guards for textile milling or fulling, crushing or combined milling and scouring machines
IPC: D06C15/10
Filed: 1943-10-30
Abstract: 578,595. Machinery guards. BUSFIELD, H. H., and PEATE, N. C. L. Oct. 30, 1943, No. 17965. [Class 80 (iv)] In a textile milling, fulling, crushing or combined milling and scouring machine, which is controlled by a starting handle m' located at the side of the machine and pivoted in a vertical plane to control the position of a belt-shifter or clutch-actuator, a guard a, in the form of a grid. or gate, is slidable vertically in guides cover that portion of the front opening of the machine through which an operative might have access to the nip rollers or other dangerous parts, and is connected with the starting handle by means which, when the guard is not in operative position, prevents starting of the machine, and when the guard is in operative position lock it against movement to inoperative position until the machine is stopped. As shown, the guard a is connected by links d, e, to a rock shaft f having a pinion g meshing with a toothed rack on a bar h guided for frontward and rearward sliding movement. The starting handle m<1> carried on a lever m is connected by a link k to a vertically slidable bar j having an aperture j' therein. In the position shown the guard a is in its operative position and the handle m<1> in the position in which the machine is stopped. If the guard is raised a projection h' on the bar h passes through the hole j' and prevents operation of the machine by the handle m<1>. If however the handle m<1> has been operated the guard a cannot be raised as the projection h' will abut a blank portion of the bar j. To hold the starting handle m' in its inoperative position it is engaged by a part t<1> of a spring-urged pivoted catch member t. Specification 482,663 is referred to.
Patent GB-952840-A (GB)
Title: Improved apparatus for the loading and unloading of ships
Inventor: HEMSLEY THOMAS BENTHAM
IPC: B63B27/22
Filed: 1960-05-21
Abstract: 952,840. Overhead cranes on ships. ALGONQUIN SHIPPING & TRADING Ltd., and CLARKE, CHAPMAN & CO. Ltd. May 21, 1960, No. 18003/60. Headings B8B and B8E. The hoisting crab 7, Fig. 1, of an overhead crane which runs on longitudinal rails 53 on the deck of a ship, moves along a bridge 5 which can be raised and lowered between operative and inoperative positions and is supported on a carriage 4 by two pairs of vertical columns 1 which are movable between a vertical erect position in which they can be locked and a lowered position. The columns 1 may be turned about pins 2 by an hydraulic ram 3 and locked in position by further pins and a strut 37, or the columns may be telescopic. The bridge 5 carries a telescopic portion 6 having tracks on which the crab 7 runs by means of wheels 16. The crab carries electric motors for operating a grab 56 or a hook 77 and further motors for traversing by means of a rack and pinion. Electric motors 28 operate a rack and pinion for moving the bridge 6 on wheels 32 relatively to the bridge 5. The bridges 5, 6 are raised by winches 8, Fig. 3, and cables 9 and held in the raised position by pins 35 which are hydraulically moved into holes in a cross-member 79 attached to columns 1. The main carriage 4 is driven by electric motors 42 and has two pairs of inverted rollers 49 which engage below rails 51 and are spring loaded to ensure that the carriage travels freely over irregularities in the track. The grab 56, Fig. 1, may dump cargo into a hopper 55 which discharges on to a belt conveyer 58. Two such hoppers and belts may be provided one on either side of the hatch. If the ship has two hatches disposed transversely the hopper and conveyer belt may be centrally disposed between them. In a modification, Fig. 8, a boom 100 carrying an endless belt conveyer may be supported and luffed about an axis 99 on either side of the carriage 4 by a rope 112 and a winch 113. A hopper 94 having a feeder-belt 95 discharges bulk cargo on to the belt on the boom 100. The boom 100 may be attached to the crab 7 by slings 122, and either the rope 112 or the crabs hoisting rope so that after suitable disconnection the boom may be moved and stowed.
Patent GB-1260516-A (GB)
Title: Fluidic control circuit
IPC: B65B57/04
Filed: 1969-04-09
Abstract: 1,260,516. Fluid logic and switching circuits. CONTINENTAL CAN CO. Inc. April 9, 1969 [April 10, 1968], No.18189/69. Heading F1P. A fluidic circuit suitable for controlling a machine (not shown) for placing lids on a plurality of series-arranged cans carried by a conveyor when a can is in register with the machine comprises a first input signal received at 3 and generated by a detector 3' as a can 1 passes beneath it and approaches the lid placing machine, a second input signal received at 4 and generated by a timer T1, when it blocks on orifice 4' and a third input signal received at 5 and generated by a timer T2 when it blocks the orifice 4<SP>1</SP>, and the circuit also comprises input NOR gates 6, 13, 9 a bi-stable input flip-flop 8, triggering NOR gates 15, 16 and an output flip-flop 19; the arrangement being such that the first input signal at 3 biases gate 6 to send a signal to the control point input 7 of flip-flop 8 which then transmits a signal through a line 10 to a control input of gate 15 which latter together with gate 16 is receiving a blocking air stream passing directly through gate 13. The second input signal subsequently received at 4 from timer T1 then biases gate 13 to direct flow at 18 to atmosphere thereby removing the blocking stream from gate 16 which latter then transmits a signal to the control input of flip-flop 19 to bias it to the ON position. The third signal at 5 generated by timer T2 resets the circuit by returning the output of flip-flop 8 to a line 11 resulting in a through-flow through gate 15 to the upper control inlet of flip-flop 19 which is thus moved to the OFF position. In the event of a cam being missing from that part of the conveyer passing beneath the sensor 3<SP>1</SP> no signal is received at 3 and the output of 8 remains in line 11 and on the timer T1 signal being received at 4 gate 16 remains biased but gate 15 transmits a signal to the upper control inlet of 19 which is thus biased to the OFF position so that the lid placing machine is not operated.
Patent GB-319408-A (GB)
Title: Improvements in or relating to sound reproducing devices
IPC: H04R1/28
Filed: 1928-06-23
Abstract: 319,408. Gramophone Co., Ltd., (Victor Talking Machine Co.). June 23, 1928. Loud-speakers. - An inertia-controlled diaphragm is provided on both sides with a resonance-chamber, one being in the form of a short horn and the other being constituted by the cabinet in which the diaphragm is mounted. The cross-sectional area of the resonance-chamber in planes perpendicular to the direction of vibration of the diaphragm, and the outlet areas, are at least as great as the projected area of the diaphragm. The two chambers are preferably resonant at different frequencies, the higher of the two resonances being more heavily damped than the lower. The conical diaphragm 1 of a moving-coil loud-speaker is resiliently mounted on an annulus 3 of rubber &c., the magnet system 5 being supported on a cross-bar 11 mounted in a cabinet 8. A horn-shaped baffle 6 extends from the periphery of the diaphragm to a larger aperture in the front panel 9 of the cabinet, while an aperture greater than the projected area of the diaphragm is formed in the back panel 10, and is covered with sound transmitting fabric. Alternatively vents for the rear resonance chamber are formed in the other walls, 7, of the cabinet. In a further modification, Fig. 4, the diaphragm faces the back of the cabinet and a folded two branched horn 13, 14 opens in a single mouth in the front panel 9 of the cabinet, which is provided with vents 12 for the second resonance chamber. Specification 288,276 is referred to.
Patent GB-298278-A (GB)
Title: Improvements in the manufacture of containers, or capsules, for liquids, or gases, under pressure
IPC: B21D51/24
Filed: 1927-07-11
Abstract: 298,278. Campbell, R. H., and Sparklets, Ltd.. July 11, 1927. Flanging.-Metal containers for storing gases and liquids under pressure are formed with a thick neck which is weakened by forming a groove 3 on its exterior. Pressure is then applied to the end of the neck, as by a plunger 5, to cause the weak part to turn inwards and form a shoulder 6 to seat the closure member. Specification 3385/09 and 22337/09 are referred to.
Patent GB-516146-A (GB)
Title: Improvements in or relating to gasproof cabinets for food and the like or for animals
IPC: A47B71/00
Filed: 1938-06-21
Abstract: 516,146. Ventilating gas-protection chambers. ATWILL & SON, Ltd., R., HOLFORD PROCESSES, Ltd., HOLFORD, J., and WHITE, H. F. June 21, 1938, No. 18470. [Class 137] A gas-proof cabinet for storing food or for housing animals or young children is ventilated by admitting air through filters 58 into lateral air ducts from which openings 54 admit the air into the interior, the air passing through openings 63 in a partition 30 to an extraction duct 32 and vent pipe 66. The filters 58 contain activated charcoal and asbestos-merino wool in pack form, and are in 'the form of a drawer 102 with a gauze bottom 98 so that they may be easily removed and replaced. Fig. 4 shows a cabinet with double glass doors 80 forming .an air-tight closure provided with a removable cot 79, an outlet 76 in the partition 30 being arranged opposite a main outlet leading -to the vent pipe 66. A similar cabinet may be used for accommodating animals. The structures are made of " Plymax " or like sheet material, and may have frieze bands of luminous paint to enable selection of a required food without other illumination. Specification 506,101 and 515,442, [Group 1], are referred to.
Patent GB-124686-A (GB)
Title: Strap and Butt Hinges.
Inventor: CROXFORD GEORGE EDWARD
IPC: E05D7/00
Filed: 1918-11-12
Abstract: 124,686. Croxford, G. E. Nov. 12, 1918. Hinges readily separable about hinge-pin. - The flaps of strap-and-butt hinges are adapted to be connected together by a removable hinge-pin c provided with a feather d engaging a keyway i in the eyepiece g of the flap b. The eyepiece e of the flap a is also formed with a keyway h which, when the flaps are turned through a predetermined angle, forms a continuation of the keyway i so that the hinge pin may be withdrawn. The hinge pin may be provided with a thumbpiece j. If desired, more than one feather d may be provided.
Patent GB-811201-A (GB)
Title: Improvements in or relating to synchronized oscillators
IPC: H03L7/24
Filed: 1957-06-12
Abstract: 811,201. Valve generating circuits. PHILIPS ELECTRICAL INDUSTRIES Ltd. June 12, 1957 [June 15, 1956], No. 18533/57. Class 40 (6). An oscillator L is synchronized from a source E by means of a T-network comprising a resistive shunt arm r and series arms including rectifiers D1, D2 so poled as to prevent directcurrent transfer between the source E and the oscillator circuit. As shown, the oscillator comprises a valve L with tuned grid and anode circuits C1, C2 respectively, which are coupled together by a link circuit comprising coupling coils R1, R2 and an amplitude-stabilizing bridge network of resistors r1, r2 and lamps L1, L2 or other non-linear resistors. Modifications of the T-network described in the Specification. include: transfer of the rectifier D2 to the arm B<SP>1</SP> (Fig. 3, not shown), the connection of rectifier D2 to a tap on resistor r (Fig. 4, not shown) for the purpose of matching impedances and replacement of the resistor r by a non-linear resistor which may comprise a fixed-value resistor and a rectifier in series (Fig. 5, not shown). Impedance-matching transformers may also be inserted in the T-network (Figs. 6, 7, not shown).
Patent GB-1302822-A (GB)
IPC: H01J9/227
Filed: 1971-06-02
Abstract: 1302822 Etching ZENITH RADIO CORP 2 June 1971 [12 June 1970] 18599/71 Heading B6J A process of etching a colour selection electrode of a colour cathode-ray tube, said electrode having a mask 10 and a frame 11, defining, at least, a circumscribing flange substantially normal to said mask, comprises supporting the electrode in an etching station with said flange vertically disposed, e.g. on a frame 14 movable on rails 16, and directing an etchant solely from beneath said electrode into contact with said mask. The mask may be of steel and the etchant ferric chloride. Spray heads 20 may be in a ribbon array and rotated so as to cover the whole area of the mask, or may be in a concentric circle array, the spacing of the heads from the mask and the etchant flow rate being controlled so as to vary etching rates across the mask. The process may be used for "re-etching" masks already having apertures therein so as to enlarge the apertures, or for etching apertures into the mask, the latter being coated with an apertured resist before etching commences.