baber/WOPTO huggingface dataset:
Patent GB-1183344-A (GB)
Title: Thin Film Memory
IPC: G11C17/02
Filed: 1967-04-28
Abstract: 1,183,344. Magnetic data storage apparatus. INTERNATIONAL STANDARD ELECTRIC CORP. 28 April, 1967 [29 April, 1966], No. 19775/67. Addition to 1,133,200. Heading H3B. A memory matrix comprising a conductive substrate 1, having a thin magnetic film 2, 3 on each side, word and digit conductors M, C adjacent one film and interrogation, inhibit and sense conductors I, E and L adjacent the other film, is interrogated in random access fashion by supplying two pulses in succession to the interrogation line I associated with the selected storage region, the first being followed before its trailing edge by pulses on all the inhibit lines E except that associated with the selected region and the second by pulses on all the inhibit lines, the pulses produced on the sense conductor during the leading edges of the two interrogation pulses being compared in magnitude to indicate the stored digit. Films 2 and 3 are preferably of uniaxial anisotropic material, film 2 having a larger anisotropy field than film 3, or film 2 may be of isotropic material. Data is written in film 2 using conductors M, C in conventional word-organized fashion. The stray fields from the storage regions in film 2 are insufficient to switch the corresponding legions in film 3 except with the aid of a hardaxis field. Prior to reading the matrix for the first time after data has been written pulses are applied to the interrogation and inhibit lines to switch all the storage regions in the read film 3 to the same state. The first interrogation pulse during reading switches all read film storage regions on the interrogated line to the hard direction and the subsequent inhibit pulses force all the interrogated regions except the selected one to return to the reference state. The selected region returns to a state determined by the data stored in the corresponding region on the storage film, due to the stray field. Comparison of the two pulses generated by the action of the two interrogation pulses is achieved using a symmetrical amplifier having a delay element in series with one input line. The matrix may be included in a multiplane arrangement in the same way as that described in Specification 1,133,200. Data may be written, each plane using coincident current methods, also as described in that specification. A two-element-per-bit store is described in which the sense line L is doubled as shown in Fig. 6. Storage cells pairs (t 4 , t<SP>1</SP> 4 ) and (t 5 , t<SP>1</SP> 5 ) contain bits "1" and "0" respectively. The reference state, to which all the storage regions on the read film are set prior to reading, is shown in cell pair (t 6 , t<SP>1</SP> 6 ). The difference signal resulting from comparison of the two output signals has a polarity dependent upon the data stored in the corresponding region of the memory film.
Patent GB-183471-A (GB)
IPC: B64C3/26
Filed: 1922-07-19
Abstract: 183,471. Betcher, O. T. July 19, 1921, [Convention date]. Laminated wood; bending.-A composite sheet material, particularly suitable for covering aeroplane fuselages and motor bodies, comprises sheets S, S<1> of hard ply or woven wood separated by strips F of corrugated material to which they are secured by glueing or otherwise fixing on to the corrugations. The corrugated strips are arranged edge to edge in staggered relation to each other, and are held in position during the fixing operation by rods 3, which may be flexible if a curved surface is required, in which event the material is held between forming surfaces giving the required shape.
Patent GB-187046-A (GB)
Title: Improvements in and relating to electromagnetic control systems
IPC: H02P1/26
Filed: 1921-07-25
Abstract: 187,046. British Thomson - Houston Co., Ltd., (General Electric Co.). July 25, 1921. Automatic starting systems.-Relates to motor control switches and relays such as are employed to change from starting to running conditions in connecting alternating current motors successively to reduced voltage and full voltage supply. According to the invention the successive connections are effected by two electromagnetic switches 12, 13 controlled by a two-way electromagnetic switch 15 normally biassed to the starting side corresponding to a contact 22, and adapted to move automatically to the running side corresponding to the second contact 23, and afterwards to be held there magnetically. The change over is produced by the impact of a falling member 20 which is first set free from a counterpoise 17 by the action of a shunt winding 18 and is afterwards subject to a currentlimit restraint due to a series winding 21.
Patent GB-332044-A (GB)
Title: Improvements in or connected with machines for cracking and shelling nuts
IPC: A23N5/01
Filed: 1929-06-29
Abstract: 332,044. Mapleton, H., and Mapleton's Nut Food Co., Ltd. June 29, 1929. Cracking nuts.-In a nut-cracking machine, the nuts are subjected to a squeezing action or blows and a wringing action by and between two parts or devices in line movable axially in relation to one another, one being rigidly held during the action on the nut and the other having a continuous revolving and an axial reciprocating movement. A rotary shaft 1 is connected to a reciprocating shaft 2 by a sleeve 3 fixed on the shaft 2 and slidable on the shaft 1. The reciprocating motion is obtained from two serrated elements 11, 9 of which 11 is fixed to the shaft 2, and 9 is slidable on the shaft but is prevented from rotating by lugs 10 engaging an abutment 8. A spring 12 bears against a bearing 6 and returns the shaft 2 when the serrated elements slip over one another. The nut is held in a roughened conical recess 32 at the end of the shaft 2 and an opposing recess 32 in a slide 16 which is moved outwards by a wedge 25 against the pressure of a spring 21. The wedge is operated by a pedal 30 through a link 31 and lever 27 pivoted at 28. When the nut is inserted in the recesses 32 and the slide 16 moved outward, the nut becomes subject to a series of blows and twists from the shaft 2 whereby the shell is removed from the kernel. The slide 16 may have a rotary motion as well as a sliding motion.
Patent GB-238585-A (GB)
Title: Improvements in or relating to microphonic transmitters
IPC: H04R1/22
Filed: 1924-06-04
Abstract: 238,585. Graham, E. A. June 4, 1924. Microphones; mouthpieces and attachments.-In a microphonic transmitter in which a diaphragm c is damped peripherally by washers g, g<1> of felt or the like, the rear washer g being of smaller internal diameter, a sound-deflecting device a of conical type arranged within the sound inlet b' is so disposed that sound waves are directed against the portion g<2> of the diaphragm supported at the rear. The base a<1> of the deflecting device a is of greater area than the inlet b', and the width of the sound passage d is small. The device a may be provided with a pad e of soft material to bear against the centre of the diaphragm, and the degree of pressure of the pad e on the diaphragm may be adjustable by means of a screw passing through the device a. Specifications 209,173 and 228,212 are referred to.
Patent GB-212486-A (GB)
Title: Improvements in truck vehicles
IPC: B62B1/14
Filed: 1923-05-18
Abstract: 212,486. Willmot, O. J. May 18, 1923. Hand-trucks, trolleys, &c. are adapted to accommodate interchangeable toe members by means of groove and tongue, dovetail, or plug and socket joints. The toe members may be of the usual form and may be replaced by curved horns 7, Fig. 4, for use with barrels, or a bar 5, Fig. 3, having spikes 6, hooks, &c. Specification 210,851 is referred to.
Patent GB-1488726-A (GB)
Title: Method of reinforcing a load-bearing surface
IPC: B23K20/12
Filed: 1975-05-14
Abstract: 1488726 Friction welding SANMEIDENKI KK 14 May 1975 [25 June 1974] 20346/75 Heading B3R  A method of reinforcing a load bearing surface of a plunger 10 of an electromagnet, by friction welding comprises the steps of relatively rotating a rod 11 (of greater hardness than the plunger) and the plunger 10, applying an initial pressure P 0  sufficient for the rod 11 to penetrate the surface 10<SP>1</SP> of the plunger 10, reducing the pressure to P 1  sufficient for the opposed portions 10a and 11a to melt and stopping the relative rotation of the plunger and the rod and increasing the pressure to P2 so as to effect a weld. The pressure P 2  (of value between P 0  and P 1 ) expels molten matter from the joint. The rod 11 may be snapped at an annular groove 12 nearest to the plunger to leave a welded-on portion which is then shaved to provide a smooth reinforced bearing surface. The plunger may comprise laminated silicon steel plates.
Patent GB-751309-A (GB)
Title: Improvements in or relating to bicycle pumps
IPC: B62J11/02
Filed: 1954-07-12
Abstract: 751,309. Tyre inflators. CAMPAGNOLO, T. July 12, 1954 [July 15, 1953; Jan. 27, 1954], No. 20374/54. Class 8(1). [Also in Group XXXI] In a bicycle pump having a head capable of automatically adjusting itself on the frame of a bicycle, an end piece 2 having a hollow cylindrical body is fixed transversely to the discharge end of the pump barrel 1, so as to form the head of the latter, and is provided on its periphery, with a fork 3 capable of straddling the bicycle frame in the angle formed by the two main tubes meeting at the bottom bracket 5. Rubber caps 4 are provided on the ends of the fork 3. The upper part of the handle 8 of the pump is placed in a recess of a cup-clip 9 fixed on one or other of the tubes 6, 7 by a clip 10. As shown in Fig. 2, the end piece 2 consists of a hollow body closed at one end by a hemispherical base 12, the other end of the hollow body being provided with a screw cap 14. The hollow body has thin walls so that its internal diameter is considerably greater than the external diameter of the tyre valve which is to be fitted therein. To ensure an airtight connection with the valve, a thick coating of rubber 15 is placed between the screw-threaded cap 14 and a washer 16 which is supported on an annular shoulder 17 formed in the mouth of the hollow body 2. To prevent damage to the tyre valve axial holes 18, 19 in the cap 14 and washer 16 respectively are formed of larger diameter than a co-axial hole 20 in the coating 15. A boss 21 on the end piece 2 is provided with a screw-threaded hole for the reception of a screw-threaded spigot 22 which connects the end piece to the pump barrel 1. Alternatively, the end piece 2 may be provided with a screw threaded hollow shank for attachment to the pump barrel. The boss 21 carries an extension 24 which is bent upwards to engage the pump barrel 1 by means of a grub-screw 25.
Patent GB-531140-A (GB)
Title: Improvements in padlocks
IPC: E05B67/02
Filed: 1939-07-13
Abstract: 531,140. Padlocks. PARKES & SONS, Ltd., J., BUTTER, F. J., and FRYER, E. C. July 13, 1939, No. 20384. [Class 44] In a padlock case metal plates C\ C<2>,C<3>, C<4> are welded to the rim B and have tongues c, Figs. 1, 2, at their opposite edges which pass through the front and back cover-plates and are then riveted. The rim may be folded round the end plate as at C<1>. Any suitable number of plates may be used, and additional plates not welded to the rim may also be used. In a modification, the plates are replaced by rivet studs welded to the inner surface of the rim.
Patent GB-661340-A (GB)
Title: Improvements in and relating to electric transformers
IPC: H01F38/06
Filed: 1949-08-05
Abstract: 661,340. Transformers. IGRANIC ELECTRIC CO., Ltd. Aug. 5, 1949 [Aug. 5, 1948], No. 20397/49. Class 38 (ii). An electric transformer has its primary and secondary coils 11, 12 coupled together by a magnetic coupling 10 affording a high permeability and a rapidly saturable first magnetic circuit and comprises an E-shaped magnetic core 13 having a cross section which is large compared with that of the coupling magnetic circuit 10 and which is arranged with a portion 14 thereof inserted within the primary coil 11 to form a second magnetic circuit in parallel with the first magnetic circuit 10 in order to shunt the flux from the first magnetic circuit at high values of current in the primary winding 10.
Patent GB-1066276-A (GB)
Title: Potentiometer and method of checking thereof
Inventor: UMANSTEV VICTOR SERGEEVICH
IPC: G01R1/28
Filed: 1964-05-15
Abstract: 1, 066, 276. Potentiometric measurement. ZAVOD ELEKTROIZMERITELJNYKH PRIBOROV, May 15, 1964, No.20404/64. Heading G1U. A potentiometer comprising two networks 1 and 2 each including a separate voltage source 4 and 11 and each comprising resistance decades 7, 8, 14, 15, is provided with a multi-position switch 46 whereby voltages appearing across selected points in the two networks may be compared for calibration purposes. With the switch in the position shown the circuit is adapted to measure a voltage supplied at terminals 54; this is balanced against voltages produced in the two networks, the tens being adjusted by contact 28, units by contact 29, tenths by contact 30, hundredths by contact 31, and the residual voltage being automatically balanced and indicated by a self-balancing meter 20 which may be an automatic photo-cell compensator. Calibration. The current in network 1 is adjusted by a rheostat 5 until the potential across a standard resistance 6 balances a standard cell 21. The switch 46 is adjusted by moving its contacts 47-49 one place to the right of the positions shown, ganged contacts 29 and 37 are moved one place to the right, and contact 30 is moved to its end position. In this way the potential across the first resistor of decade 8 is balanced against the potential across the whole of decade 14, the current in network 2 being adjusted for balance. Contacts 29 and 37 are then moved one place to the right, and the reading on meter 20 gives the potential difference between the first and second decade steps of decade 8. In a similar way each of the other decade steps can be balanced against another nominally equal potentials in the circuit. The errors can be tabulated and used to calculate corrections for measured values of potentials applied to terminals 54, and the errors may be corrected by adjustment of variable resistances 57 in parallel with the decade steps. The standard resistance 6 may be provided with taps corresponding to the rated values of various decade steps for comparison purposes.
Patent GB-710427-A (GB)
Title: Method of hydrogel preparation
IPC: B01J21/04
Filed: 1951-08-29
Abstract: In the production of hydrogels of one or more metal oxides by mixing solutions adapted to form the metal hydroxides without precipitation, and allowing the hydrosol thus formed to gel, the concentration of the solutions is adjusted to form a gel containing at least 10 per cent. weight of the oxide, and precipitation is prevented by choosing as reactants, substances which after reaction form complexes with the metal hydroxides to be gelled, or alternatively, by including in the solutions a complexing agent in sufficient quantity to prevent precipitation prior to gelling.  Metal compounds are salts of aluminium, iron, nickel, lead, antimony, cobalt, copper, zinc, cadmium, chromium, molybdenum, and manganese.  Reagents tending to precipitate the hydroxides-"now complexing agents"-are sulphates, bisulphates, nitrates, chlorides and phosphates, and if these anions are present, they must be compensated for by an excess of a "complexing agent".  Complexing agents are polyhydric alcohols, e.g. glycerol, mannitol and sorbitol, sugars, starches and hydroxy-carboxylic acids, e.g. glycollic, lactic, citric and tartaric acids.  Other organic acids are specific only for certain metals, e.g. acetic acid for chromium, and oxalic acid for chromium, iron and zinc.  Ammonium, cyanide and thiocyanate ions form complexes with certain metals.  The sols formed may be gelled in the form of spheroids by the processes of Specifications 576.058 and 645,133, or of U.S.A. Specification 2,446,783, wherein the sol is fed to apex of a grooved and wax-coated conical divider, flowing as a plurality of streams into a liquid.  The Specification contains several examples, of which the following are typical:-Example 1-chromia-alumina hydrogel by reacting sodium aluminate and chromium acetate, gelling on trays, cutting into cubes, treating with 10 per cent. ammonium sulphate solution, washing, drying in steam at 260-270 DEG C., and then calcining at 1,100 DEG F.; Example 6-chromia gel by reacting sodium hydroxide and chromium acetate solutions; Example 7-alumina gel by reacting sodium aluminate solution with a solution of citric and tartaric acids; Example 13-chromia-copper oxide gel by reacting cuprammonium acetate solution with chromic sulphate solution; in this case, the effect of the non-complexing sulphate ion is overcome by the complexing ammonium and acetate ions.  The products are used variously as catalysts for reforming petroleum naphthas, hydroforming and desulphurization of petroleum fractions &c.  Specification 577,385 also is referred to.
Patent GB-1526895-A (GB)
Title: Method and apparatus for cutting one or more layers of sheet material
IPC: B26F1/20
Filed: 1977-05-16
Abstract: 1526895 Cutting apparatus SIG SCHWEIZERISCHE INDUSTRIE GES 16 May 1977 [29 June 1976] 20427/77 Heading B4B An apparatus for cutting one or more layers of sheet material 10 comprises at least one rotary knife edge disc 3 disposed opposite a counterholder 8 having a control opening 13 connectible to a supply of compressed air such that in use, air passing through the opening presses sheet material lying between the disc and counterholder against the periphery of the disc. The knife disc is clamped against a cover disc 4 having a cam portion 7 adapted to prevent that portion of the knife edge of the disc covered by the cam from cutting the material when the latter is pressed against the disc by air pressure.
Patent GB-600405-A (GB)
Title: Improvements in or relating to rotary plug valves
IPC: F16K5/04
Filed: 1944-10-23
Abstract: 600,405. Rotary plug valves. THOMPSON PRODUCTS, Inc. Oct. 23, 1944, No. 20531. Convention date, Oct. 1, 1943. [Class 135] In a rotary plug valve, the plug member 20 is supported with clearance in its casing 19 by bearing rings 55 and 60 and spring-pressed sealing rings 63 are provided in posts 27, 28, 29 for making sealing contact with the surface of the plug. Each ring 63 is backed by a sleeve 64 having a flange 65 and a spring 66 acts between the flange 65 and a shoulder formed by a split resilient ring 68 engaged in an annular groove in the post. The plug 20 is formed as a hollow cylindrical shell with a central cylindrical part 45 supported in one bearing ring 60 and apertured at 74-76 to provide unrestricted flow between the ports 71-73 in the outer shell. The central part 45 may also communicate with an axial port in the end cover of the casing.
Patent GB-407240-A (GB)
Title: Improvements in the manufacture of artificial filaments, films and the like
IPC: D06M11/56
Filed: 1933-07-20
Abstract: Artificial filaments, threads, fabrics, films, &c., made of cellulose acetate or other organic derivatives of cellulose are obtained of reduced or modified lustre by treating with water or a dilute aqueous medium such artificial materials as contain finely divided water soluble inorganic substances.  Suitable inorganic substances are salts such as sodium sulphate, sodium bicarbonate, sodium chloride, sodium thiosulphate, sodium borate, sodium pyrophosphate, and copper sulphate; the inorganic substance may be reduced to the necessary fine state of division by grinding as with the solvent of the spinning solution or with the solution itself, or by precipitation, for example, by mixing a solution of the substance with the solvent or with the spinning solution; and it is preferred to add the finely divided substance to the spinning solution prior to the usual filtration.  The filaments, films, &c. may be made by extrusion or by pouring or casting, the coagulation being effected either by evaporation or by treatment with a coagulation liquid.  The removal of the finely divided substance may be carried out at any time after the materials have left the spinning cell or coagulation bath, and it may take place during a dyeing, scouring, &c. operation or simultaneously with a saponification treatment.  The Specification as open to inspection under Sect. 91 refers to the removal of substances soluble in organic solvents, and besides inorganic substances instances glycine, phenyl glycine, naphthalene, anthracene, sodium citrate, aluminium citrate, rochelle salt and basic aluminium acetate; and it includes a modification of the process in which the finely divided substance is not removed but is converted to an insoluble product, and a further modification in which the finely divided substance is introduced into the materials continuously with a subsequent to their production by treatment with a solution of a suitable salt. This subject-matter does not appear in the Specification as accepted.
Patent GB-792240-A (GB)
Title: Improvements in or relating to concrete mixers
IPC: B28C5/20
Filed: 1956-07-03
Abstract: 792,240. Batch-mixing machines. MOSER, F. July 3, 1956 [July 26, 1955; Jan. 21, 1956], No. 20611/56. Class 86 In a concrete mixing drum comprising at least two separable elements normally closed one against the other, one end element being fixed to a rotary shaft and having an axial feed opening, at least one element of any two adjacent elements has a strip of deformable material so disposed as to come into contact with the other element on the closing of the drum. In the construction shown the mixer drum comprises two tubs 2, 5, the tub 5 being connected to the rotary shaft 1 and the tub 2 connected to a bearing 6 slidable upon the shaft 1. The tub 2 carries a strip 7 of deformable material and is pressed against the tub 5 by means comprising a collar 16 carrying a stirrup 15 linked to one end of a rod 14, the other end being connected to a lever 17 on a toothed segment which is engaged by a hand operated pinion 19. A stop 24 adjustable by a screw limits the compression of the strip 7 A chain 20 transmits rotary motion from the tub 5 to the tub 2. In another construction the drum comprises two end elements and a central cylindrical element and requires two deformable sealing strips.- One end element fixed to the rotary shaft has an axial feed opening.
Patent GB-1410442-A (GB)
Title: Method of manufacturing cadmium sulphide photocells
IPC: H01L31/04
Filed: 1973-05-01
Abstract: 1410442 Treating photo-cells SOC ANON DE TELECOMMUNICATIONS 1 May 1973 [3 May 1972] 20639/73 Heading H1K In manufacturing a photo-cell comprising a polyimide film bearing successive layers of silver (to which a lead is eventually attached), zinc, cadmium sulphide, cuprous sulphide, a gridform electrode, and a protective film, the formation of the grid-form electrode disturbs the stoichiometry of the cuprous sulphide layer, and to restore stoichiometry the cell, immediately after formation of the electrode, is immersed in a solution containing cuprous ions and in which a pure copper rod is also immersed, and is withdrawn when the potential difference between the cell and rod (as measured with a high impedance device) reaches its minimum value. The aqueous solution specified contains cuprous iodide, potassium iodide, and hydrazine monobromide.