baber/WOPTO huggingface dataset:
Patent GB-882771-A (GB)
Title: Improvements in or relating to coincident-current magnetic matrix storage systems
Inventor: HORE TERENCE
IPC: G11C11/06
Filed: 1960-08-23
Abstract: 882,771. Magnetic data-storage apparatus. MULLARD Ltd. Aug. 23, 1960, No. 29177/60. Class 40 (9). In a magnetic storage matrix in which a particular core is read-out by selective application of coincident half-current read pulses to a row and a column winding, the read pulses are preceded by non-coincident half-current pulses applied to the same windings and of the same polarity as the read pulses for the purpose of partially switching unselected cores are thereby minimizing spurious outputs. The method may be utilized in a store comprising a plurality of matrix planes, Fig. 3 (not shown), having respective -inhibit windings common to all the cores of a plane and an output winding common to all the planes. Each co-ordinate of a 64 x 64 matrix plane may be controlled by a selector, Fig. 5, in which each heavy line represents a matrix row (or column) winding. A read pulse is applied to a selected matrix winding from a read current generator by way of primary and secondary transistor switches RP1-RP8 and RS1-RS8. Similarly a write pulse is applied over transistor switches WP1- WP8 and WS1-W58 when the read pulse terminates. The half current pulse applied prior to the read pulse is derived from a preread disturb generator connected in parallel with the read generator.
Patent GB-254955-A (GB)
Title: An apparatus for stretching and drying laundered articles
IPC: D06F59/08
Filed: 1925-11-19
Abstract: 254,955. Schramm, A. O. Nov. 19, 1925. Frames.-Apparatus for drying and stretching curtains &c. comprises a rectangular frame upon each side of which a curtain is stretched and which is rotatable within a drying-cabinet so as to-permit curtains to be attached to and detached from the frame, interconnected levers 52 being provided on each side of the cabinet for releasing the locking-bolts 49 which retain the frame in its stationary positions. The frame comprises end channel bars 11 having strips 29 supporting bristles 30 to which the ends of a curtain may be attached and laterally adjustable channel bars having bristles 41 to which the sides of the curtain are attached and supporting longitudinal shafts the ends of which carry toothed wheels which engage with racks 32 supported by channel bars secured to the end bars of the frame. The lateral adjustable bars can be locked in position by spring-bolts 38 which engage with the toothed wheels. The flanges of the side channel bars of the frame are perforated for engagement by adjustable members 19, 14 adapted to be engaged with the hem and the opposite end of a curtain respectively.
Patent GB-429022-A (GB)
Title: Improvements in and relating to sound-transmission, sound-recording and sound-reproducing systems
IPC: H04S3/00
Filed: 1933-10-23
Abstract: 429,022. Transmitting, recording, and reproducing music &c. BLUMLEIN, A. D., 7, Courtfield Gardens, West Ealing, London, and ELECTRIC & MUSICAL INDUSTRIES, Ltd., Blyth Road, Hayes, Middlesex. Oct. 23, 1933, No. 29283. Addition to 394,325. [Class 40 (iv)] In the binaural system described in the parent Specification, the speech range is divided into a number of bands each dealt with by a separate group of microphones. This avoids difficulties due to directional ambiguity when the distance between a pair of microphones for binaural pick-up exceeds half a wave length as the microphones need to be close together to give unambiguous binaural effect for frequencies in the middle and higher ranges but this results in very small phase differences between the outputs at low frequencies. In the system shown, a widely spaced pair 1, 2 of pressure microphones deals with the low frequencies while the middle and high frequencies are dealt with by a closely spaced pair 3, 4. The outputs of each pair are subjected to sum and difference processes in separate networks 5, 6 as described in the parent Specification and corresponding channels from each network are mixed and fed to loudspeakers 11, 12. The microphones may be mechanically or electrically designed to deal with their respective ranges or filters may be used. As shown, a condenser 7 and inductance 9 are connected in series across the loudspeaker leads, the middle and high channel being connected across the inductance and the low channel across the condenser. The filters may be inserted in the networks 5 6 and the channels mixed before the final sum and difference operation. A further pair of microphones for very high frequencies may be placed very close together between the pair 3, 4 and their outputs after summing and differencing may be mixed into the leads 11, 12 by pairs of condensers and inductances similar to 7, 9 but of smaller value. Such a pair of microphones may comprise piezoelectric or strip elements arranged, preferably in a common field, to operate as pressure (non-directional) microphones by damping each strip with a long tube packed with felt. Velocity (directional microphones) may be used instead of pressure microphones, any of the arrangements described in the parent Specification being adopted.
Patent GB-817526-A (GB)
Title: Improvements in and relating to windows with metal sashes carrying three panes
IPC: E06B3/64
Filed: 1957-09-18
Abstract: 817,526. Windows. PERSSON, S. E. Sept. 18, 1957 [Sept. 18, 1956], No. 29413/57. Class 20(3) In a window having a sash or coupled sashes 1, 2 comprising metal sections, which extend one piece along at least three edges of the window panes, and containing three spaced panes 7, 8, 9, the space 11 between the panes 8, 9, being the larger, the inner pane and middle pane have their edges inserted into grooves 12, 14 respectively, denned by side portions 15, 16, 19 rigidly interconnected, preferably integrally, the portions 15 and 16 being adapted to receive packing 17, e.g. by having faces 18 set obliquely to the panes 7 .and 8 respectively and the portion 19 preferably carrying packing 20. To couple the sashes, the part 4 of the sash 2 is hooked round a flange 6 on the sash 1, a tightening fillet 5 being placed between the sashes. The outer pane 9 is located in a groove 21, the inner face of the portion 22 being set obliquely to the pane 9 to reeive packing 23, the portion 24 being grooved to receive packing 25. In a modification, the middle pane 8 extends only part way up the sash and may be displaceable vertically; to shield the sun the pane may be formed of tinted translucent material. A roller or Venetian blind may be suspended from the part 13 in the space 11.
Patent GB-932205-A (GB)
Title: Improvements in or relating to earth and rock drilling bits
Inventor: WARBURTON BRUCE PERCIVAL
IPC: E21B10/20
Filed: 1959-08-28
Abstract: 932,205. Boring earth &c. PADLEY & VENABLES Ltd. Aug. 15, 1960 [Aug. 28, 1959; Oct. 5, 1959], Nos. 29431/59 and 33656/59. Class 85. A drill head comprises a hollow shank 10 adapted at one end for connection to a drill string, an enlargement 12 at the other end of the shank, arms 16 having recesses co-operating with the enlargement, a sleeve 32 tightly engaging the arms, and a driving connection between the sleeve and the shank. The arms carry cutters 16 or rollers (not shown), and have a driving connection comprising keyway and keys 34, 36. Splines 48 on the sleeve-engaging splines 46 on the shank to form the driving connection between sleeve and shank. The pin 44 of a tool joint is screwed on the shank to bear on the sleeve which may have reamer stabilizers 54. In a modification (Fig. 1, not shown), the sleeve and pin are attached to the shank by screw-threads of opposite hand, and a second sleeve having a splined connection with the shank is interposed between the pin and the first sleeve.
Patent GB-975306-A (GB)
Title: Strain insulators
IPC: H01B17/40
Filed: 1963-07-25
Abstract: 975,306. Strain insulators. ANDERSON ELECTRIC CORPORATION. July 25, 1963 [Aug. 23, 1962], No. 29485/63. Heading H2C. A strain insulator comprises a resin impregnated glass fibre rod the ends of which are housed in aluminium blocks 9. Fig. 3 shows the details of the end mounting. The end of the rod is slotted longitudinally as shown at 27, a wedge W is inserted into the mouth of the slot and the assembly is pushed hard up against the bottom of a recess 17 in the block. The recess has a cylindrical part D1 followed by a conical part D2 and the wedge angle is slightly greater than that of the cone. The slot 27 extends beyond the bottom of the wedge so that there is no tendency for the wedge to split the rod. The slot, wedge faces, end of the rod and sides of the recess may be coated with an epoxy resin in which after curing forms a weather seal and will not harden. The projecting collars 29 protect the insulator from flashover in the region of the fibre glass rod.
Patent GB-1532042-A (GB)
Title: Dyeing preparations and process for dyeing polyacrylonitrile material in strong neutral clear blue shades
IPC: C09B67/32
Filed: 1976-07-15
Abstract: 1532042 Dyestuff mixtures CIBA-GEIGY AG 15 July 1976 [17 July 1975 1 June 1976] 29567/76 Heading C4P [Also in Division Dl] A mixture of oxazine and naphtholactam dyes for dyeing polyacrylonitrile comprises in a weight ratio of 1:3 to 3:1 two dyes which are of formulµ in which R, and R 2  are low molecular up to 4 carbon atoms alkyl groups, R 3  is a low molecular alkyl group or an aryl group, R 4  is hydrogen or a low molecular alkyl group, each of R 5  and R 6  is a low molecular alkyl group, Y is a halogen atom and X-is an anion. R 1 , R 2 , R 3  and R 4  are preferably methyl or ethyl, Y is preferably bromine, R 5  is methyl or ethyl and R 6  is ethyl. The mixtures are obtained by dissolving the dyes in water.
Patent GB-230528-A (GB)
Title: Improvements in or relating to mud guards for vehicles
IPC: B62D25/18
Filed: 1923-11-24
Abstract: 230,528. Westwell, J., and Ainsworth, H. C. B. Nov. 24, 1923. Lateral splash guards for vehicle wheels are supported from a ball bearing on the wheel hub by an arm carrying an arcshaped tube 10 in which run balls 12 to return the guard to vertical position. The balls impinge on a buffer 13 which is placed on one side of the balls or in the centre of them. The tube has rubber &c. buffers 11 in its ends to contact obstructions. The tube 10 is carried bv a plunger 6 slidable in the arm under control of spring 7 and adjusting-nuts 9 contained in a cavity in the arm. The plunger 6 is adapted to abut against a washer 6<c>. The arm has a spring hinge 4. The shield 14<a> is of chain mail lined with rubber &c.
Patent GB-1279138-A (GB)
Title: Improvements in or relating to methods and apparatus for direct reduction of metallic materials
IPC: B22D11/103
Filed: 1969-06-11
Abstract: 1279138 Continuous casting processes CONTINENTAL ORE CORP 11 June 1969 [11 June 1968 9 June 1969] 29651/69 Heading B3F [Also in Division C7] In a continuous casting process reactant materials including a metal oxide, or an oxide and a metal, a reducing agent and a slag forming material are introduced into the top of a mould 12, and are heated and stirred within the mould to produce a molten metal or alloy which is then solidified and withdrawn from the mould, the slag being continuously tapped off throughout the process. Heat is preferably supplied by means of a consumable or non-consumable electrode 30 immersed in the slag. When the electrode is of the non-consumable type the reactants are introduced through nozzles 32; alternatively a consumable electrode made from one or more of the reactants, e.g. a metallic oxide and a reducing agent, may be used. The mixture in the mould is stirred by an induction stirrer 24. An alternative mould 80, Fig. 5, has an enlarged upper portion 82, a vertically slidable slag-tapping device 86, a water-cooled, vertically displaceable steel baffle 88 and a graphite ring 90. Examples describe the production of a ferro-vanadium bar from a mixture of V 2 O 5 , a vanadiferrous slag containing 29% U 2 O 5 , a reducing material consisting of 62À5% carbon and 37À5% ferro-silicon FeSi 70 and a fluxing slag of CaF 2  with 4% ferromanganese FeMn 80 using (i) a graphite electrode, (ii) a tungsten electrode and (iii) an electrode made from the V 2 O 5 , vanadiferrous slag and the reducing material. Another example describes the production of a ferro-titanium eutecticalloy using an electrode consisting of 65À5% of titanium sponge containing about 3% Al, and 0À5% Fe, 4À5% rutile and 30% iron powder and a fluxing slag of CaF 2  + 4% FeMn 80.
Patent GB-414927-A (GB)
Title: Improvements relating to electron discharge amplifiers
IPC: H03F1/08
Filed: 1933-10-26
Abstract: 414,927. Valve amplifying circuits. BRITISH THOMSON-HOUSTON CO., Ltd., Crown House, Aldwych, London.- (Assignees of Kaar, I. J. ; 55, Belmont Avenue, Schenectady, New York, U.S.A.) Oct. 26, 1933, No. 29743. Convention date, Oct. 26, 1932. [Class 40 (v).] The residual coupling between the anode and grid circuits of a screen-grid amplifier used for ultra high-frequency working is counterbalanced, to prevent undesirable reaction, by providing an adjustable reactance, such as the condenser 12, between one end of the screening grid 4 and earth or cathode. The other end of the screening-grid is connected (a) to a source of high tension and (b) to the cathode through a condenser 11. The input circuit is shown at 7 and the output circuit at 8.
Patent GB-536265-A (GB)
Title: Improvements in or relating to variable pitch propeller mechanisms
IPC: B64C11/30
Filed: 1939-11-09
Abstract: 536,265. Variable-pitch propellers. HOOVER, W. S. Nov. 9, 1939, No. 29759. Convention date, June 13. [Class 114] Gear for hydraulically controlling simultaneously the pitch of two propellers, which may be a pair of oppositely rotating propellers, consisting of valve mechanism, for example, a sleeve member operated by pin and cam connection for controlling the flow of oil between the propellers. The propeller 34 is driven by the shaft 16 which also through bevel gear 14, 18 drives the concentric propeller shaft 24 carrying the second propeller 34. The pitch changing mechanism is hydraulically operated say from the governor 52, by means of a duct system passing through the propeller shafts and including conduits 54, 56 which are alternately connected to pressure or to a drain. The operation of the pitch changing gear of the propeller 34 causes movement of a member 62, which through pin and slot mechanism- 86, 88 and hydraulic connectors causes adjustment of a slidable valve member 1 and 2. Parts 122, 124 are alternatively connected with pressure or drain and through bevel gear 108. The variation of pitch of the propellers is caused to correspond with that of the propeller 34.
Patent GB-411025-A (GB)
Title: Improvements in or relating to screw-thread cutting die heads
IPC: B23G5/12
Filed: 1933-10-27
Abstract: 411,025. Screwing-dies. PARFITT, A. W., Stafford House, Norfolk Street, Strand, London.-(Eastern Machine Screw Corporation; Truman Street, New Haven, Connecticut, U.S.A.) Oct. 27, 1933, No. 29801. [Class 83 (iii).] In combination with a screw-cutting die-head having a body adapted to support radially movable chaser carriers, a number of sets of carriers with chaserreceiving slots of uniform dimensions are provided to cut threads on stock of various diameters, the slots of each set being located differently from those of another set relatively to the radial axis of carrier movement, so that the cutting edges of chasers in a set are correctly spaced ahead of said axis. The chaser carriers 17 are mounted in radial slots 16, Fig. 6, formed on the front face of the body member 1. slots 19 in the carriers are engaged by tongue-pieces provided on the ends of pins 21 fixed to a collar 3, relative movement between the collar and the body member thus adjusting the carriers. Compression springs 15 between the collar and body serve automatically to retract the chasers from the work when a latch, Figs. 1, 4 (not shown), is tripped by the relative axial movement of the sleeve 11 and collar 3 ; a screw 28, Fig. 2, on the front of the die provides for chaser adjustment. The chasers are made with definite cutting and clearance angles which values are used in a given empirical formula for finding the amount which the centre-line of the carrier slot has to be placed behind that of the radial axis of movement of the carriers, so that the cutting edge of the tool may correctly engage work of a particular diameter, Fig. 12. Transverse holes in the carriers are adapted to receive bolts 41, Fig. 8, for clamping the chasers, the hole in the chasers being slightly out of line so that the latter are wedged firmly against the sides of the slot.
Patent GB-849820-A (GB)
Title: Improvements in or relating to the preparation of light sensitive materials
Inventor: TORDAY JOHN
IPC: G03C1/60
Filed: 1956-10-01
Abstract: 849,820. Light-sensitive diazonium materials. OZALID CO. Ltd., TORDAY, J., and PARRY, E. Dec 31, 1957 [Oct. 1, 1956], No. 29820/56. Class 98(2) A light-sensitive photographic, material comprises a polyterephthalate support such as polyethylene terephthalate coated with a diazonium compound in a copolymer of acrylonitrile and methacrylic acid. The sensitizing coating may contain a coupler, silica, and the usual additives. The support may be scratched, sand-blasted, matted or embossed before coating to increase the adhesion of the coated layer. Specification 779,687 is referred to.
Patent GB-484118-A (GB)
Title: Improvements in or relating to phenol-formaldehyde condensation products
IPC: C08G8/28
Filed: 1936-11-02
Abstract: A heat-hardenable resin is prepared by heating a phenol with more than two molecular proportions of formaldehyde, adding a basic substance (e.g. an alkali bicarbonate) to prevent precipitation, neutralizing the product with acid, reacting the neutralized product with a partial acetate of a polyhydric alcohol (with or without the addition of up to 10 per cent of boric acid), and dehydrating by distillation.  In an example: 1 mol. of phenol is heated with 2 1/2 mols. of 40 per cent formaldehyde solution, and when the temperature reaches 80 DEG  C., 0,02 mols. of sodium bicarbonate are added and heating continued at 100 DEG  C. The mix is neutralized with lactic acid and one mol. of monoacetin added with or without 10 per cent boric acid (reckoned on the acetin).  The product is dehydrated by vacuum distillation.
Patent GB-712343-A (GB)
Title: Improvements relating to 1, 4-disubstituted piperazines
Filed: 1951-12-21
Abstract: The invention comprises piperazines of the general formula <FORM:0712343/IV (b)/1> where R is a hydrogen atom or an alkyl radical, R1 is an alkyl or aralkyl radical and R2, R3, R4 and R5 are hydrogen atoms or alkyl radicals, not more than one of R2 and R3 being an alkyl radical and not more than one of R4 and R5 being an alkyl radical.  They are prepared by reacting an N-substituted piperazine of the formula <FORM:0712343/IV (b)/2> with an acyl halide of the formula <FORM:0712343/IV (b)/3> in which X is a halogen atom, or with the corresponding acid anhydride, when R is an alkyl radical, or with formic acid when R is a hydrogen atom.  The reaction temperature is suitably between -10 DEG  and 100 DEG  C.  The reaction may be carried out under anhydrous conditions in a solvent such as ether, alcohol or benzene, or when R is an alkyl radical may be carried out in an aqueous solvent in the presence of an alkaline substance as a hydrogen halide acceptor.  In examples, there are prepared 1-carbethoxy - 4 - n - butyryl piperazine and the corresponding 4-diethylacetyl, 4-isocaproyl, 4-acetyl and 4-propionyl compounds; 1-carbobenzoxy-4-acetyl piperazine and the corresponding 4-propionyl, 4-n-butyryl and 4-formyl compounds; d,l-trans-1-carbethoxy-4-acetyl-2 : 5 - dimethylpiperazine; 1 - carbomethoxy-4-n-butyryl piperazine and 1-carbo-n-butoxy-4-n-butyryl piperazine.
Patent GB-736845-A (GB)
Title: Improvements in thermally-actuated mechanisms
IPC: G05D23/02
Filed: 1953-10-30
Abstract: 736,845. Valves. GENERAL MOTORS CORPORATION. Oct. 30, 1953 [Nov. 7, 1952], No. 29995/53. Class 135. [Also in Group XIII] A thermally-actuated mechanism, applicable to the cooling water system of an internalcombustion engine, comprises a valve, e.g. the butterfly valve 50, actuated by a piston 90 moved in response to the expansion of a thermal pellet 106 against the action of a pair of springs 72 connected on either side of the piston between the valve and a frame supporting the pellet container 86. The valve 50 underlaps one half of the oval seat 40 at 44 and overlaps a lowered half of the seat at 68, and has slotted side projections engaging the vertical joint 48 between the seat halves in place of a pivot shaft. The pellet container rocks at 134 on a bridge 74, between the bottom of which and two hooks 122 on the bracket 54 by which the piston is pivoted to the valve, are stretched the two equal diverging springs 72. A flexible diaphragm 100 and plunger 102 are placed between the pellet and piston.
Patent GB-602700-A (GB)
Title: Improvements in or relating to electric dry rectifiers
IPC: H01L21/12
Filed: 1945-11-09
Abstract: 602,700. Asymmetrically-conducting resistances. STANDARD TELEPHONES & CABLES, Ltd., and SEARLE, A. M. Nov. 9, 1945, No. 29996. [Class 37] The material forming the counter-electrode of a metal rectifier is charged positively relatively to the rectifier and discharges on contact therewith to cause electro-forming. Particles of metal are sprayed from a gun 4 on to the semi-conducting layer 2 of a rectifier on a base plate 1, the gun 4 and base plate 1 being connected respectively to the positive and negative plates of a highly charged condenser 5. The layer 2 may be wholly or partly selenium and carries a mask 3. Specification 602,699 is referred to.
Patent GB-335387-A (GB)
IPC: G01L17/00
Filed: 1929-10-03
Abstract: 335,387. Schrader's Son, Inc., A., (Assignees of Wahl, J., and Melzer, 0.). Oct. 20, 1928, [Convention date]. Pneumatic-tyre pressure gauges; piston-andspring pressure gauges; indicating-means for. - Relates to pressure gauges of the dial type for use with pneumatic tyres and comprises pressure-responsive means, a rack bar unconnected therewith but moved thereby, friction means for holding the rack bar and a pinion transmitting the movement of the bar to an indicating pointer. The parts are pressed in a block C mounted within a casing B through a hole in which a cylindrical projection c on the block C passes. A bore in the block C forms a cylinder for a piston D between which and a shoulder at the top of the cylinder is located a spring G. The rack bar E passes through the top of the cylinder and meshes with a pinion F while on the side of the rack opposite the pinion bears a roller N which together with the pinion is mounted on spindles located in a groove in the top of the block. The lower end of the block is threaded to take a cap l which secures a presser foot L. The roller E is mounted in an elongated hole and is pressed against the grooved back of the rack by a spring n<2> located in a bore C<5> of the block. The gauge pointer is frictionally mounted on the pen f. The lower end of the rack is formed as a screwed socket to receive a small screw e<1> between which and the end of the socket is a coiled spring. In use, the rack is pressed down until the screw e' engages an extension d' on the piston D. If the gauge does not read zero, the screw e<1> is adjusted. The rack is held in any position reached by the friction of the roller N. To return the rack, the push M is actuated and a spring P normally holding a lever o in the position shown, together with the lever o is moved into the position shown in dotted lines.