baber/WOPTO huggingface dataset:
Patent GB-1345767-A (GB)
Title: Method and apparatus for diagnosing faults in electronic assemblies
IPC: G01R31/311
Filed: 1971-05-27
Abstract: 1345767 Locating faulty semi-conductor devices WESTERN ELECTRIC CO Inc 27 May 1971 [1 June 1970] 17452/71 Heading G1U In order to locate which of a plurality of parallel connected semi-conductor devices or chips is faulty, a pattern of currents is established in the devices, one of the currents is monitored, e.g. by being displayed on a c.r.t. or by being displayed digitally, the devices are sequentially disturbed in a non-contact making manner e.g. by subjecting them individually to light or infrared radiation or electric or magnetic fields, and the sequence of variations caused in the monitored current is examined whereby an operator can locate the faulty device by locating the device which causes a different variation than all the other devices. According to the specifaction, merely monitoring the common power supplied to the devices has a good chance of revealing a faulty device. Sequential disturbance of the devices by light or infrared radiation can conveniently be effected either by using an array of light-guides, one positioned over each device, or by moving the devices sequentially under a finely focused light beam from an appropriate projector, Fig. 2 (not shown).
Patent GB-570762-A (GB)
Title: Improvements in fastenings for window sashes and other structures
IPC: E05B65/08
Filed: 1943-10-23
Abstract: 570,762. Latches. BROOKES, G. Oct. 23, 1943, No. 17476. [Class 44] A spring-loaded latch 21 has an extending threaded shank 17 to which is screwed a finger piece 18. A lateral projection 24 on the finger piece engages a lug 26 on the housing 14 to retain the latch in the withdrawn position. The striking plate 27 has a rounded surface 29 over which the inclined surface 22 on the latch may ride.
Patent GB-783916-A (GB)
Title: Improvements in or relating to sports articles used for striking a ball or other object
IPC: A63B59/12
Filed: 1955-06-17
Abstract: 783,916. Striking appliances for games. LEWIS, Ltd., O. E., LEWIS, T. W., and PRYOR, A. L. June 18, 1956 [June 17, 1955], No. 17568/55. Class 132(2) [Also in Group XXXII] A sleeve of flexible synthetic plastic, e.g. polyvinyl chloride, is passed over the striking portion of a cricket bat, hockey stick or the like and is then shrunk on, preferably by infra red radiation, the striking portion having been previously coated with an adhesive.
Patent GB-279786-A (GB)
Title: Process in the reduction of solutions containing titanium, iron and eventually other compounds
IPC: C22B34/12
Filed: 1927-07-02
Abstract: 279,786. Titan Co. Aktieselskabet. Oct. 28, 1926, [Convention date]. Titanium sulphate and salts in general.-The reduction of solutions containing titiauium and iron, for instance those obtained by treating ilmenite with sulphuric acid, with materials principally consisting of metallic iron, is carried out with solutions whose titanium content corresponds to 90-130 grms. TiO2 per litre, and at temperatures below 60‹ C., the temperature being, if desired, allowed to rise above 60‹ C. towards the end of the reduction. The calculated amount of reducing agent may be used, particularly when a material of large surface such as spongy iron is employed; or excess of reducing agent may be used, the process then being interrupted when the desired degree of reduction has been effected.
Patent GB-255463-A (GB)
Title: Improvements in piezo-electric devices
IPC: H03H9/05
Filed: 1926-07-14
Abstract: 255,463. British Thomson-Houston Co., Ltd., (Assignees of Ellis, A. L.). July 14, 1925, [Convention date]. Piezo-electric crystal units. - Piezo-electric crystal oscillators are arranged in such a way as to prevent air-friction or the effect of temperaturevariations upon the mountings from affecting the constancy of their free vibration period. In Fig. 1, " twinned " crystals 1 - - 4, arranged side by side and in one plane as shown in Fig. 4 are mounted upon an electrode 5 connected to the lead 7 through a screw 8, the upper electrode 9 being supported by a spaced conducting wall 10 connected through a screw 12 to the lead 11. The change in form of adjacent crystals under electrostatic influence is as shown in Fig. 5, producing a minimum overall change in the length and width of the slab as a whole, and thus reducing the frictional effects both on the mounting and on the surrounding air. Alternatively the supporting electrode 5 and the spacing member 10 may be composed of materials, such as " invar " and copper, designed to have such a combined coefficient of thermal expansion that the spacing between the crystal and its surroundings is maintained constant irrespective of temperature charges. Or the upper electrode 9 may be supported from the lower electrode 5 by bimetallic strips similar to those used in thermostats. Again the upper electrode may have slots formed in the surface adjacent to the crystal for the purpose of minimizing air-friction effects. Fig. 9 shows a construction in which the crystal oscillator 31 is mounted between curved supports 32, 33 pressed together by a spring 37, the whole being contained in an evacuated vessel 34.
Patent GB-1386117-A (GB)
Title: Capacitive length and angle measuring device
IPC: G01B7/06
Filed: 1972-04-17
Abstract: 1386117 Measuring displacement CARL ZEISS JENA VEB 17 April 1972 17657/72 Heading G4H [Also in Division G1] A length measuring device comprises a static scale having on one flat face two sets of equal sized electrodes 21, 22, the electrodes of each group being electrically connected and the groups interlacing as shown, and a movable scanning plate having two further sets of electrodes 28, 29 on a flat face thereof co-operating with the scale, the lengths of these electrodes being longer than the width of the scale and their arrangement being such that the distances between the axis of one electrode and the axes of the two adjacent electrodes are unequal, the smaller of these distances being (n + ¢) times the distance (d + a) where d is the distance between adjacent electrodes of the scale and a is their thickness, n being a natural number. A.C. voltages in phase opposition are applied to respective groups of the scale and the A.C. induced in those of the scanning plate while this is moved are taken via sum and difference amplifiers and phase shifters to phase sensitive rectifiers which pass pulses to a counter indicative of zero passages.
Patent GB-145985-A (GB)
Title: Improvements in and relating to window frames and sills for coaches for railway and like vehicles
IPC: B61D25/00
Filed: 1919-07-15
Abstract: 145,985. Metropolitan Carriage Wagon & Finance Co., and Chandler, L. July 15, 1919. Vehicle win. dows; window frames.-A window frame for railway and like vehicles is made by pressing from one piece of metal a fence rail and sill a of angle section and upright members of Z-section having inner flange e and moulding c.
Patent GB-477402-A (GB)
Title: Improvements relating to the production of bottle caps and the like from cellulose esters
IPC: B29D99/00
Filed: 1936-06-25
Abstract: Shrinkable bottle caps are obtained by coating a former with a solution of a fully esterified cellulose ester in an acetal, coagulating the coating, and removing the solidified cap from the former.  Acetals formed from acetaldehyde, formaldehyde, and other aldehydes may be employed.  Fillers, pigments, dyestuffs, and plasticizers may be added to the solution.  The former may be dipped into the cellulose ester solution, slowly withdrawn, and then immersed in a coagulating bath.  The solidified cap is then removed and washed.  Water, alcohol, and mixtures of water and alcohol, may be used as coagulating liquid.  Alcohol, when used, may be washed out and replaced by water.  When the caps are stored in water, the pliability of the caps is increased if the water contains a small amount of plasticizer such as an acetin.  In an example, cellulose triacetate is dissolved in a mixture of ethylene glycol formal and alcohol.  Formers are dipped in the solution and the adherent layer is coagulated by washing in alcohol until most of the solvent is removed.  The caps are detached from the former, placed in water, and stored in water or in a moist atmosphere.
Patent GB-955510-A (GB)
Title: Shaft bearings
Inventor: PARKER KENNETH GEORGE
IPC: F16C33/10
Filed: 1961-05-16
Abstract: 955,510. Bearings. C.A.V. Ltd. May 2, 1962 [May 16, 1961], No. 17748/61. Heading F2A. In a plain bearing, a loose bush 4 is mounted between a shaft 3 and its housing 5 so that when the shaft is rotated the bush will also rotate but at a lesser speed. Lubricant is supplied, via an inlet 10 in the housing 5, to an annular passage 6 between the housing and the bush, and radial passages 7 in the bush connect to clearances 8 between the latter and the shaft 3. A restricted outlet 11 is said to remove oil containing foreign matter which is thrown outwardly by centrifugal force. In an embodiment two bushes 4 have the shaft 3 mounted therebetween and have flanges 4a which are each located against the housing 5 by collars 3a carried by the shaft. The clearances 8 are connected by oilways 9 to an annular space 13, and a radial outlet 12, connected to the space 13, directs the oil to a cooler.
Patent GB-498998-A (GB)
Title: Improvements in cannulas for the treatment of the udders of cows
IPC: A01J3/00
Filed: 1938-06-15
Abstract: 498,998. Brushes &c. ULDBJERG, N., and SORENSEN, N. P. June 15, 1938, No. 17779. Convention date, July 16,1937. [Class 19] [Also in Group VI] An appliance for use in treatment of cows' udders by insertion into the teat consists of a stem 1 of intertwined pliable wires with which are entwined transverse threads 2 of silk, wool, cotton or other soft material, one end of the appliance being provided with a hook or button 4 and the other with a protective knob 3 of celluloid or like material.
Patent GB-111898-A (GB)
Title: Improvements in or relating to Matrix Holders for Type Casting Machines.
IPC: B41B5/02
Filed: 1916-12-12
Abstract: 111,898. Pierpont, F. H., and Lanston Monotype Corporation. Dec. 12, 1916. Type-casting machines.-Relates to matrix-holders, particularly for display-type matrices, for use in connection with casting and composing machines such as that described in Specification 8633/99. The matrix B, Fig. 4, is positioned as usual between two gauging surfaces A<3>, A' at right-angles. According to the invention, spring-controlled bolts C', D' are provided to act on two diagonally opposite corners of the matrix to clamp the matrix in position. The bolt C<1> acts directly on the matrix whilst the bolt D<4> acts through a hand-lever D which may be held back by being sprung over a catch a. The spring D<5> acts with greater power than the spring C<2>. Channels A<10>, A<11> may be formed in the holder for the circulation of cooling water. The centring hole E. Fig. 3, may be formed in an adjustable plate E<1>.
Patent GB-466315-A (GB)
Title: Improvements in or relating to friction clutches
IPC: F16D13/71
Filed: 1936-06-26
Abstract: 466,315. Friction clutches. BORG & BECK CO., Ltd. June 26, 1936, No. 17865. Convention date, Jan. 24. [Class 80 (ii)] The spring-loaded pressure plate 4, Fig. 1, of a friction clutch is retracted by radial levers 11, each of which is formed as a sheet steel stamping and has a rounded portion 15 fulcruming on a flat washer 13 carried by a pin 12 fixed to the cover plate 2 while the outer end of the lever is connected to a lug 8 projecting from the plate 4 by an encircling tension link 19, the latter having a knife edge bearing in a recess 24 in the lug 8 while a roller 27 is interposed between a plane edge 28, Fig. 3, of the link and a curved socket 26 in the lever. The tapered end of each pin 12 engages an aperture in the lever. Outstanding portions 29 of the edge 28 of the link position the roller and the corners of these portions 29 are free to engage the walls of the socket 26 so as to prevent lateral displacement of the link. Anti-rattle springs 16 are connected between the cover 2 and the levers. In another form, each lever 11<a>, Figs. 5 and 6, has a rounded projection 36 bearing against a flat washer 35 carried by a pin 32 secured to the pressure plate 4a, and a compression link 37 has a knife edge 41 bearing on the cover 2a while a roller 27<a> is interposed between the other plane edge 42 of the link and a curved socket 26<a> in the end of the lever. Ears 38 on the link extend through openings in the cover and ears 44 embrace the lever. Portions 43 outstanding from the edge 42 position the roller and prevent lateral displacement of the link. Anti-rattle springs 16a are fitted. The driven clutch plate 7 may be constructed as disclosed in Specification 463,758.
Patent GB-739570-A (GB)
Title: Means for voltage regulation by aid of an exciter
IPC: H02P9/12
Filed: 1954-06-18
Abstract: 739,570. Exciting dynamo-electric machines. ALLMANNA SVENSKA ELEKTRISKA AKTIEBOLAGET. June 18, 1954 [June 22, 1953], No. 17898/54. Class 35. An exciter 1 controlling a main machine is provided with a shunt field winding 2 and a control winding 5 connected to a regulator 6, both, windings being connected through a uni-directional current device 3 to prevent reversal of the exciter field. The uni-directional device may be a dry-plate rectifier, a reverse-current relay or a polarised choke which is saturable in one direction only. Reversal of magnetization by current passing in series between the control and shunt windings is prevented by making the shunt winding larger or by shunting the control winding with a resistance. In a modification the shunt and control windings are connected across opposite terminals of a bridge-connected rectifier, or both windings may be energized in parallel from a bridge-connected rectifier fed from an A.C. source.
Patent GB-1187492-A (GB)
Title: Cassette for Self-Developer Camera
Inventor: SCHMIDT ROLF
IPC: G03B17/52
Filed: 1967-04-19
Abstract: 1,187,492. Photographic cassettes. AGFAGEVAERT A.G. April 19, 1967 [April 20, 1966], No. 17946/ 67. Heading G2A. A cassette for a self-developing camera comprises, in an outer jacket 8, two cartridges 6, 7, one 7 containing folded up positive photographic material 2, and the other 6 containing folded up negative material 1, there being a container 15 for processing liquid 18 arranged between the two cartridges. Initially a leader strip of the material 2 is threaded past a roller 17 of the container 15 and lies adjacent a pressure member 20 of the cartridge 7. The leader strip of the material 1 is positioned adjacent the member 20 of the cartridge 6 and the two cartridges and the container are inserted into the jacket 8 which has an aperture 11 which acts as an exposure aperture when the cassette is inserted into an appropriate camera Fig. 5 (not shown). After an exposure has been made, the materials 1, 2 are pulled out of the camera, the material 2 having recessed image-receiving areas which are coated with liquid 18 before being brought into contact with exposed areas of the material 1.
Patent GB-292780-A (GB)
Title: Improvements in gas-meters
IPC: G01F3/22
Filed: 1927-07-06
Abstract: 292,780. Metropolitan Gas Meters, Ltd., and Forster, J. D. July 6, 1927. Gas meters.-In a dry gas meter of the diaphragm type the resistance to the flow of gas is lessened by connecting the gas inlet b by a passage n arranged above the valve plate d to the usual passage j<1> arranged below the valve plate and communicating by an opening l with the valve chamber i and also by connecting the gas outlet c by a passage n<1> arranged above the valve plate with the usual passage j<2> arranged below the valve plate and connected by passages m to the exhaust ports of the valves. Large openings q, r connect the passage j<1>, j<2> with the inlet b and outlet c respectively.
Patent GB-259669-A (GB)
Title: A method of, and means for, neutralising the free acid which exists in commercial sulphate of ammonia
IPC: C01C1/249
Filed: 1925-07-14
Abstract: 259,669. Coke & Gas Ovens, Ltd., and Pearson, R. July 14, 1925. Screw conveyers.-Apparatus for drying and neutralizing crude ammonium sulphate comprises long horizontal compartments superimposed one above the other, two steam-Jackets one each side of said compartments and conveyers in said compartments whereby the sulphate is passed in zig-zag manner from the uppermost to the lowermost compartment. The apparatus may comprise three compartments provided with conveyers 10, 11, 12, Fig. 1 and heated bv the same vertical steamjackets 4, 5. Solid, alkali is fed into the inlet 6 with the sulphate or ammonia is introduced near the outlet 7 for the sulphate in the bottom compartment and residual gases leave at a point near the inlet 6. The salt passes from the first to the second compartment through a hole 8 and from the second to the third compartment through a hole 9. Rollers 13, 14 driven by gearing from the shafts of the conveyers and chain wheel 23 are provided in order to crush the sulphate as it is discharged.
Patent GB-378147-A (GB)
Title: Improvements in electrical systems for the exctation of dynamo electric machines
IPC: H02P7/34
Filed: 1931-06-22
Abstract: 378,147. Control of D.C. motors. JOHNSON, E. M., 33, Poplar Grove, Brooklands, Cheshire, and ASSOCIATED ELECTRICAL INDUSTRIES, Ltd., Crown House, Aldwych, London. June 22, 1931, No. 18054. [Class 38 (iii).] The excitation current for the motor 1 and generators 3, 4 of a Ward-Leonard marine propulsion system is furnished by an exciter 14, which may be separately or self excited and driven by a motor 13 or a prime mover. Adjustment of a rheostat 16 causes variation in the excitation of the motor, but the simultaneous adjustment of an interlocked rheostat 17 counteracts the variation of voltage appearing at the bushes of the exciter 14, so that substantially constant excitation is supplied to exciters 9, 10 supplying the fields of the generators. A Ward-Leonard controller 18 is interposed in the supply to the exciters 9, 10. The exciters 9, 10 can be replaced by a single machine, and the rheostat 17 can be adjusted to suit the number of generators in operation.
Patent GB-992789-A (GB)
Title: Apparatus for trimming welded rods
IPC: B21L15/00
Filed: 1964-04-30
Abstract: 992,789. Broaching; welding by pressure. P. ESSER, [trading as MEYER, ROTA & PASTOR]. April 30, 1964 [May 9, 1963], No. 18074/64. Headings B3L and B3R. Apparatus for trimming flash from welded rods comprises a cutter 22 having a cutting-edge embracing less than half of the rod and further cutters 39, 40 for completing a cut, the first cutter being movable only axially and the other cutters being movable outwardly as well as axially. The link 5 of a chain is supported on the saddle 7 of a welding machine and is operated on by upsetting tools 8 while being heated by electrodes. The cutter 22 is carried on a cylinder 16 advanced by fluid-pressure to effect a cut, after which the cutters 39, 40 are swung into operative positions against the cutter 22 by pistons 19, 20 and levers 35, 36 and the cylinder 16 is retracted to complete removal of the flash. The edges 23, 24 of the cutter 22 and the edges of the other cutters form Vees facing in opposite directions. The side cutters may be movable on slides instead of levers or may pivot about a common axis.
Patent GB-1311922-A (GB)
Title: Centring gauge
IPC: G01B5/25
Filed: 1970-04-15
Abstract: 1311922 Gauging FRIEDRICH DECKEL PRAZISIONS MECHANIK & MASCHINENBAU 15 April 1970 [21 April 1969] 18074/70 Heading B3C [Also in Division G1] A centring gauge comprises a dial gauge 16 in a holder 10, a feeler lever 34, 40 mounted in a member 32 attachable to holder 10, and transmission means for transmitting movements of the feeler lever to the dial gauge. Holder 10 includes a glass tube having part 22 fixed thereto at its lower end, the dial gauge being mounted in bearings 20 and prevented from rotation with holder 10 by conventional magnetic means. Member 32 is attached to part 22 by screw threads and feeler lever 34 is rotatably attached to member 32 (Fig. 3, not shown). Lever 36 is attached to the shaft of lever 34 by screws 46 so that its angular position relative to lever 34 may be adjusted. One end of lever 36 is biased towards part of member 32 forming a stop by spring 48, which spring reinforces the bias spring of the dial gauge and may be rendered inoperative by turning out of engagement with lever 36. The other end of lever 36 carries a leaf spring 54 engaging a further pivoted lever 38 which in turn engages a member 28 to operate the dial gauge. Member 28 has a ball at each end to co-operate with cavities in lever 38 and the dial gauge stem (Fig. 5) and also has a disc 30 which engages a flange on part 22 to retain member 28 with the dial gauge. In Fig. 7, an extension comprising an outer tube 66 and a transmission rod 78 is interposed between the holder 10 and member 32. At its upper end, rod 78 has a plug 80 provided with a conical centring hole which co-operate with a cone on part 28 (Fig. 8). The upper end of part 28 is flat and co-operates with a ball 92 disposed in a cavity in the end of the dial gauge stem. The lower end of rod 78 also has a plug which has a flat lower end engaging a ball disposed in a cavity in lever 38 (Fig. 9, not shown). Rod 78 may be solid and may be provided with flanges at its ends which co-operate with the ends of tube 66 to limit axial movement of the rod (Fig. 6, not shown).
Patent GB-949308-A (GB)
Title: Improvements relating to blow moulders
IPC: B29C49/28
Filed: 1960-05-23
Abstract: 949,308. Blow-moulding machines. T. KATO. May 23, 1960 [May 27, 1959; May 28, 1959; May 29, 1959; July 9, 1959], No. 18150/60. Heading B5A. A blow-moulding machine comprises two extension nozzles A<SP>1</SP>, B<SP>1</SP> which alternately supply a tube to a mould formed by a mould part a and a mould part a<SP>1</SP> which is carried by an intermediate, slidable plate 10. The tube is formed by extruding the material through a passage 34, Fig. 3, to a valve having a cock 39 which distributes the material to either one of the tube forming dies 18, Fig. 4, according to which mould is in the open position. When the tube is extruded the controlling hydraulic circuit acts to move a piston 24 downwardly, causing a mandrel 31 to project downwardly and form the neck of a bottle in co-operation with the parts d of the mould. The mandrel 31 also has a passage 28<SP>1</SP> for the supply of compressed air for blow-moulding the tube. In a modification for forming the body of a doll, Fig. 10, pins 81 are moved into the mould by pistons 82 to form recesses in the body for attaching limbs. In a further modification, Fig. 21, the tube may be blown by inserting a mandrel 126 from below. In this modification the tube is cut by a reciprocating knife (Fig. 24, not shown).
Patent GB-562312-A (GB)
Title: Improvements in or relating to piston type pumps
IPC: F04B1/00
Filed: 1942-12-22
Abstract: 562,312. Reciprocating pumps. SAY, A. W., and PLESSEY CO., Ltd. Dec. 22, 1942,No. 18207. [Class 102 (i)] In a pump in which a reciprocating piston 3 contains' a plunger 11 having reciprocating movement at right angles to that of'the piston, the plunger communicating alternately with inlet ports 4 and outlet ports 5 in the piston casing 1, one or more such plungers are reciprocated by engagement with a part of, or a member secured to, the connecting rod 7 which drives the piston. In the form shown in Fig. 1, the connecting rod 7 is pivoted at 8 to the piston 3 and has a toothed extension 9 to engage a recess in the plunger 11. In the form shown in Fig. 3, the connecting rod 7 carries, above and below the pivot 8, transverse pins 14 the outer ends of which engage slots 15 in plungers 13. The inlet and outlet ports 4, 5 and their conduits 4A, 5A may be so arranged that the plungers 11, 13 are single or double acting and connected to one. or more delivery lines. The piston 3 may be circular or rectangular in cross-section, and it may serve as a single or double acting boost pump. A number of such pumps may be arranged radially and operated by a common eccentric 6 and driving shaft 2.