baber/WOPTO huggingface dataset:
Patent GB-730353-A (GB)
Title: Method of and apparatus for manufacturing hollow and semi-hollow rivets
IPC: B21K1/58
Filed: 1953-06-03
Abstract: 730,353. Forging rivets. KOCH, F. K., [trading as PELTZER & EHLERS KOMM. GES], and WEIGAND, H. June 3, 1953 [June 3, 1952], No. 15284/53. Class 83(4). A method of cold-forging hollow or semihollow rivets comprises inserting a blank 4 in a die 5 and pressing it between an aligned punch 7 and heading tool 1, withdrawing the punch and tool and then moving the die laterally into .alignment with an ejector 6 which is reciprocated to eject the finished rivet. The blanks 4 are cut from a reel of wire. The heading tool is mounted in a housing 17 which is moved to the left to effect the heading operation. This movement also moves a cam 2 against a return spring 11. The cam is engaged by a roller 12 on a slide 9 and thus the latter is raised to bring the blank 4 into alignment with the heading tool and the punch. The latter is then moved to the right against a return-spring 16 by an eccentric (not shown) and push-rod 15 whereby the shank of the rivet is partially pierced simultaneously with the forming of the head. Upon the withdrawal of the heading tool 1, the cam 2 is moved to the right so that the slide 9 is lowered to bring the rivet into alignment with the ejector 6. The latter is moved by an eccentric (not shown).
Patent GB-1087078-A (GB)
Title: Improvements in shielding for a vacuum type circuit interrupter
IPC: H01H33/662
Filed: 1966-04-06
Abstract: 1,087,078. Vacuum switches. GENERAL ELECTRIC CO. April 6, 1966 [May 10. 1965], No. 15390/66. Heading H2B. In a vacuum switch a vapour condensing shield has a thin outer tubular member 100 slotted longitudinally at 108 in the region of the arc gap and a tubular liner 102 composed of a plurality of discrete metal segments spaced apart circumferentially. The outer member is of nickel, the liner of copper. The sections of the liner are secured to the outer to overlie the slots 108 by means of stainless steel spacers 106. The composite shield is employed in a switch otherwise generally as described in Specification 1,033,720 and is designed to reduce eddy current in the shield so that the axial magnetic field reduces to zero at the current zero. Reference has been directed by the Comptroller to Specification 1,033,720.
Patent GB-727295-A (GB)
Title: Lubrication of machinery and lubricant composition
IPC: C10M169/00
Filed: 1949-01-25
Abstract: A lubricating composition comprises a liquid thermostable condensed aryl silicate, preferably free from polymers lower than the tetramer, and colloidal graphite.  The composition claimed in Specification 727,231 is disclaimed.  Specification 591,767, [Group III], also is referred to.ALSO:A liquid thermostable condensed aryl silicate, preferably free from polymers lower than the tetramer, is used as a lubricant, out of contact with water.  Colloidal graphite may be mixed with the silicate.  The lubricant claimed in Specification 727,231 is disclaimed.  Specification 591,767 also is referred to.
Patent GB-396902-A (GB)
Title: Improvements in or relating to buffers for railway and like vehicles
IPC: B61G11/08
Filed: 1932-05-31
Abstract: 396,902. Buffers for railway vehicles. MITCHELL, R., 69, Kenilworth Court, Putney, London, FINLAY, W., 24, Mansionhouse Road, DOUGAL, D. and DOUGAL, A., 18, Hill Street, both in Edinburgh, (Representatives of MITCHELL, J.), and COSSEY, J. C. G., Calbourne, The Vale, Golders Green, London. May 31, 1932, No. 15450. [Class 103 (v).] In a buffer for railway and like vehicles the buffer head b is provided with an integral or attached rear extension b<1> adapted to slide on an intermediate thrust-transmitting member a, which in turn slides on the inside or outside of the buffer casing g, springs e, c being arranged within the casing and between the buffer head and end a<1> of the member a, and being adapted respectively to take the ordinary shocks and the ultimate or larger shocks. Ejection of the buffer head and member a from the casing is prevented in the usual way by a spindle f fitted at the rear of the headstock h with a recoil spring o, the spindle in the construction shown in Fig. 1 being integral with the buffer head, while the extension b<1> is separate from but riveted to the buffer head. In this arrangement the spring e is compressed first until the end a<1> contacts with the forward edge of the casing g, after which only the spring c is compressed. In a modification, Fig. 2, the head J<1> of the spindle f is flexibly connected to the buffer head, the extension b<1> is integral with the buffer head, and a washer k bearing on the spring e has an extension sleeve k<1> passing through the end a<1> and spring c to the bufferhead. In this construction, the spring e only is compressed at first, while, after the end a<1> contacts with the casing g, both springs c and e are compressed in parallel. Other modifications, with the springs functioning as in this last arrangement, are described, in which movement of the member a ceases when its rear end contacts with a shoulder on the casing g, in which the spindle head f<1> engages a cylindrical rearward extension of the buffer head, and in which the member a slides within instead of on the casing g.
Patent GB-329835-A (GB)
Title: Improvement in men's wear
IPC: A41D1/00
Filed: 1929-05-17
Abstract: 329,835. Wooldridge, E. G. May 17, 1929. Trousers; waistcoats; shirts. - A united garment, for sports and other wear, comprises as shown in Fig. 1 a pair of trousers permanently attached at A to a top part in the form of a sleeveless vest with large armholes, thus avoiding the use of braces. The vest part of the garment is covered by a blouse-shirt shown in Fig. 3 gathered in at the waist by elastic.
Patent GB-246787-A (GB)
Title: Automatically-operating furnace for coal-dust
IPC: F23C99/00
Filed: 1925-06-15
Abstract: 246,787. Berg-und-H³ttenwerks Ges., and Kurz, R. Feb. 2, 1925, [Convention date]. Charging.-Pulverized fuel is fed to a gas-producer furnace from a hopper 1, fitted with agitators 2, by a worm 3 located in an inclined passage communicating with the upper end of the combustion chamber 4.
Patent GB-1100741-A (GB)
Title: A pneumatically operated automatic device, for electrically signalling the values of pressure existing in pneumatic tires of motor vehicles
IPC: B60C23/04
Filed: 1965-04-12
Abstract: 1,100,741. Indicating abnormal tyre pressures. A. CESCATI. 12 April, 1965 [16 April, 1964], No. 15467/65. Heading B7C. [Also in Division G1] The air pressure in a pneumatic tyre 1 is measured by a transducer which may be mounted on the wheel carrying the tyre and communicate with an indicating instrument 28 through slip-ring contacts 27, 34. The transducer consists of a chamber 21 open to the air pressure so as to tend to move the diaphragmsupported member 14 against adjustable spring resistance 15 toward a second chamber 24. The member 14 has a flange portion 14a secured to the diaphragm 22 and a cylindrical portion 13 which passes through the diaphragm. The latter portion carries a winding 17 so that the resistance between terminal 17a and sliding contact 25 varies with pressure and its value is detected as a proportional D.C. current in meter 28. Two end contacts 35 and 36, corresponding respectively to minimum and maximum allowable pressure, are connected to operate a visible or audible alarm. In a four-wheel vehicle, one transducer would be provided on each wheel and the vehicle would contain either separate or common meters and alarms. The maximum and minimum alarms could be connected in different circuits.
Patent GB-727747-A (GB)
Title: New monoazo dyestuffs and intermediates and process for their manufacture
IPC: C09B35/40
Filed: 1952-06-19
Abstract: The invention comprises dyestuffs of formula <FORM:0727747/IV (c)/1> wherein one X is H, halogen, alkyl, alkoxy or nitro and the other X is a sulphonic acid group.  They may be made by treating a compound of formula <FORM:0727747/IV (c)/2> where R is an organic radicle and X as above, with nitrous acid to replace NH2 by OH, treating the hydroxyazo dyestuffs thus formed with copper salts in the presence of an oxidising agent and splitting off the sulphonic acid ester group by saponification.  R is specified as phenyl, tolyl, cyclohexyl, methyl or ethyl radicles.  Values of X specified in the nucleus containing X and considering the azo group to be in the 1 position are 3-and 4-sulphonic acids, 4-chloro-, -nitro-, -methyl-, -methoxy or -ethoxy-3-sulphonic acids, and 3-methyl- or -nitro-4-sulphonic acids.  Replacement of the amino by the hydroxy group is advantageously performed by treating neutral to weakly alkaline aqueous solutions of the aminoazo dyestuffs with salts of nitrous acid and adding the solutions to dilute mineral acids. Advantageously saponification is effected in an alkaline medium. The copperized dyestuffs are used in the preparation of dis- and polyazo dyestuffs, thus one mol. of the copper complexes derived from 21 - hydroxy - 41 - or - 31 - sulphobenzene - 1 : 11 - azo - 2,5 - dihydroxy - naphthalene-7-sulphonic acid may be reacted with the intermediate from one mol. of tetrazotized 3,31-dimethoxy - 4,41 - diamino - 1,11 - diphenyl and 1 mol. of 1-hydroxynaphthalene-3,6-disulphonic acid to yield tris-azo dyestuffs which on coppering dye cotton and regenerated cellulose fibres in marine blue tints and one mol. of the copper complex derived from 21-hydroxy-31-sulpho-41-methylbenzene - 1,11 - azo - 2,5 - dihydroxynaphthalene-7-sulphonic acid may be reacted with the intermediate from one mol. of tetrazotized 3,31 - dimethoxy - 4,41 - diamino - 1,11 - diphenyl and one mol. of 1-hydroxynaphthalene-3,8-disulphonic acid to produce a trisazo dyestuff which on coppering has similar properties to the preceding polyazo dyestuffs.  Examples are given showing the preparation of copperized dyestuffs derived from certain of the above reactants, oxidative coppering being effected with copper sulphate in the presence of hydrogen peroxide and sodium acetate. Specification 462,675 is referred to.
Patent GB-438610-A (GB)
Title: Improvements in or relating to turning lathes
IPC: B23Q16/00
Filed: 1934-05-24
Abstract: 438,610. Turning. B.S.A. TOOLS, Ltd., Armoury Road, Small Heath, and OGILVIE, W., c/o B.S.A. Tools, Ltd., Montgomery Street, Sparkbrook, both in Birmingham. May 24, 1934, No. 15477. [Class 83 (iii)] In a lathe having an automatic trip device for stopping the longitudinal feed of a saddle, a stop-bar rotatably mounted on the saddle is provided and is characterized in that longitudinal grooves formed in its periphery carry detachable but non-adjustable rods of varying lengths secured in position by a ring and that means are provided for indexing the stop bar to bring the rods into alignment with the operating arm of a stop device. The rotatable stop-bar 4, Fig. 4 (plan), indexed by means of the star-wheel 12 and the spring-pressed detent 16 carries a number of rods of varying length held in semicircular recesses 6 by a muff-clamp 9. The rods are adapted to be brought into line with an abutment 17 on a lever 18 controlling a drop-worm box to stop the longitudinal feed. The transverse feed of a cross-slide 2, Fig. 1, arranged on the saddle, is arrested by an adjustable stop-bolt 23 on the cross-slide engaging one of a number of dead-stop bolts 20 projecting radially from the stop-bar and each corresponding to one of the longitudinal stop rods 7.
Patent GB-899046-A (GB)
Title: Electric power supply apparatus
IPC: H02M7/08
Filed: 1960-05-04
Abstract: 899,046. Protective cut-out arrangements. WESTINGHOUSE ELECTRIC CORPORATION. May 4, 1960 [May 11, 1959], No. 15685/60. Class 38 (5). [Also in Group XXXV] In a supply system, e.g. for an arc welder, comprising a power transformer having one or more pairs of separate secondary windings S1 . . . S4 supplying silicon or germanium rectifier bridges RX1 . . . RX4, current transformers CT1 . . . CT4 have their primary windings connected in series with each of the power transformer secondary circuits and their secondary windings connected in parallel in opposed pairs. A relay 2CR has its winding connected across the current transformer secondary windings and is energized when imbalance occurs due to a faulty rectifier element. The relay closes its contacts 2CRa to energize the trip coil CBT of a main circuit breaker CB. A further relay 1CR has its lowimpedance coil connected in series with one of the pairs of current transformer secondary windings and responds with an inverse time delay to overload currents in the system. The relay 1CR closes contacts 1CRa to energize the trip coil CBT. High speed fuses 13 may be provided when two or more of the systems shown are used in parallel. Specification 857,395 is referred to.
Patent GB-315063-A (GB)
Title: Improvements in method of generating helical gears
IPC: B23F5/20
Filed: 1928-05-29
Abstract: 315,063. Trbojevich, N. May 29, 1928. Gear-cutting.-Helical involute gears and like twisted surfaces are generated by means of a pair of plane disc cutting or grinding tools mounted on the same arbor and having their operative faces located and maintained in tangent planes drawn to two different tooth surfaces of the blank. An involute helical surface, Fig. 1, is generated by tangents t to a base helix h, these tangents intersecting a plane xy perpendicular to the helix in an involute d drawn from the projection circle co of the helix. Thus such a surface may be generated, as described in Specification 160,832 by a cutter J. Fig. 3, containing a generator t of the helical tooth surface. According to the invention it is shown that a pair of parallel cutters J1, J2 representing two tangent planes may be set so as to straddle a number of teeth of a helical gear G and to generate two different tooth surfaces simultaneously. If -y, is equal to the base helix angle then, denoting the distance A1, A2 representing the intercept of a tangent to the base circle co between involutes d1, and d2 by x1, it is seen that x1 = arc o1, o2 = aw. Also if x2 represents the distance between the generating planes then x2 = x1 cos gamma0 = aw cos gamma0. If # represents the transverse pressure angle of the gear blank then w may be found from the equations The distance x2 between the operative cutter surfaces is thus exactly determined and during operation in a milling machine the blank is rotated and fed axially to produce the required helical lead. After each cut the cutters are returned, the blank indexed and the process repeated until all the teeth are generated.
Patent GB-220117-A (GB)
Title: Improvements in wire drawing machines
IPC: B21C1/12
Filed: 1923-06-20
Abstract: 220,117. Western Electric Co., Ltd., (Western Electric Co., Inc.). June 20, 1923. Drawing wire.-A wire-drawing machine is provided with mechanism whereby the speed of reeling is automatically regulated by the tension in the wire. Duplicate drawing- drums 17 are geared to a shaft 16, which is driven by a motor 13. The drum-shafts 18 are geared to parallel shafts 40, which drive transverse sleeves 45, Fig. 3, through worm gearing enclosed in casings 41. The sleeves are mounted on spindles 52, to which the reeling spools 38 are secured. The drive is transmitted from the sleeves to the reeling spool spindles through friction clutches composed of members 54, 48 having cork &c. inserts. The pressure contact of the clutch members is controlled by a tensioning arm 33, which carries a pulley 32 over which the wire passes. Each clutch member 54 is splined on the spindle 52, and is provided with a thrust-pin engaging a lever 63 controlled by a spring 69, which can be set to regulate the initial pressure between the clutch members by means of a screw-and-nut gear 75. The lever 63 is linked by a lever system to a sleeve 104, Fig. 4, yieldingly connected to a rod 97 by means of a spring 116 seated on an adjustable member 112. The rod 97 is connected to a link 95, which has a fixed pivot, and is actuated by a roller 94 on an extension of the tensioning arm 33. A clock spring connected to the tensioning arm spindle may be set to give a predetermined tension by a pawl 101 and ratchet wheel 100. Should the wire break, the member 112 drops on to a stop 121 and actuates a lever 120, thereby tripping a clutch mechanism and stopping the machine. The wire is guided on to the spool by fingers 34 on an arm 35, which is reciprocated by gearing driven from the main shaft. The course of the wire through the machine is from the supply spools 25 past guide pulleys 26, 27, thence round the drawing-drums, through dies in the holders 23, and round the idle guide sheaves 19, from whence it passes by way of adjustable guide pulleys 30, round the pulleys 32 at the end of the tensioning arms to the reeling-spools 38.
Patent GB-624234-A (GB)
Title: Improvements in and relating to correcting magnetic compasses
IPC: G01C17/38
Filed: 1947-06-18
Abstract: 624,234. Magnetic compasses. RAYNES, J. S., HARVEY, G. N., and HITCHINS, H. L. June 18, 1947, No. 16055. [Class 97 (ii)] A heeling error corrector for a magnetic compass comprises a permanent magnet mounting with means for adjusting the inclination of the magnetic axis relatively to the axis of a Flinders bar. The binnacle 1, Fig. 1, for the compass 2, provided with corrector spheres 3, Flinders bar 4, and permanent correcting magnets 5 is provided with a boxmounting 7 for the permanent bar magnets 6 which are inclined relatively to the Flinders bar for correcting heeling error. As shown in Fig. 3, one part of the mounting 7 projects into the binnacle 1 and the lower part is located outside the binnacle. The magnets 6 rest against a back plate 11, provided with magnet-separating pins 11a and 11b and against the upper face of a cam 8 and a curved locating plate 10, and are held in position by a spring-urged bar 12. The cam 8 is fast on a spindle 8a and has at its mid-length a ball-ended lever 8b which projects into a socket at the end of a cylindrical adjusting nut 14 longitudinally displaceable by a screw 15. In use a reading is taken with the Flinders bar in the easterly direction and without any of the magnets 6 in the mounting 7: The magnets are then inserted and the cam 8 is turned by means of the screw 15 until the same compass reading is obtained. The cam position indicator 9 is then set to show against its index the length of the Flinders bar in use and locked to the cam spindle by means of the set-screw provided. The adjustment can then be altered when the length of the Flinders bar is changed by turning the cam 8 until the dial 9 shows the new length of bar against its index. A hinged cover 7a, 7b, is provided which may be locked to prevent alteration of the adjustment of screw 15. An adjustable magnet of known kind may be provided instead of the magnets 6 and the mounting 7 may be secured to the ring on which the Flinders bar is mounted, so as to slew therewith.
Patent GB-1130663-A (GB)
Title: Metal rolling process
IPC: B21B45/02
Filed: 1967-04-07
Abstract: 1,130,663. Rolling. NALCO CHEMICAL CO. 7 April, 1967 [29 June, 1966], No. 16084/67. Heading B3M. [Also in Division C5] An oil in water emulsion, which is used as a lubricant and coolant in the rolling of metal, has added to it a chelating agent which brings the titratable hardness of the emulsion, calculated as CaCO3, to from 5 to about 40 p.p.m., in order to increase the working life of the emulsion. The rolled metal can be Cu, Al or steel and the chelating agent ethylene diamine tetraacetic acid (EDTA), nitrilotriacetic acid, or one of many compounds listed. In an example, an emulsion of 94% water and 6% oil was used for rolling steel in a continuous mill, EDTA being added as a chelating agent. The steel left the fifth stand of the mill at 3500 feet/min. at a temperature of 325‹ F., 3000 gals./min. of emulsion being used at each stand.
Patent GB-252912-A (GB)
Title: Improvements in and relating to leaf-turners
IPC: B42D9/08
Filed: 1925-06-22
Abstract: 252,912. Meyer, G. E. June 22, 1925. Leaf holders and turners comprise a base, radial arms mounted thereon, and released successively by an escapement device comprising spring latches at opposite ends of a trip lever. The leaf turning arms 10 are pivoted on a vertical pin 9 mounted between lugs 8 bent out from the base bar 6 carried by the upper end of a vertical supporting plate 3 mounted at its lower offset end 4 on a piano or desk. A spring latch 15 secured upon the back of the base bar extends forwardly through an opening 17 therein so that a pendent tooth engages over the edge of the front arm 10 and holds it at the right of the device against the force of a spring 11 coiled round the pin 9. When the operating arm is depressed, a flexible wire 21 lowers the head 20 of a lever 19 pivoted upon the front of the base bar 6. Simultaneously the other end of the lever rises and releases the latch 15 to allow the front leaf to be turned. A second spring latch 28 mounted on the back of the bar 6 and extending forward through a hole therein and a hole 27 in the head of the lever is lowered when the head 20 is drawn down, and engages over the top edge of the arm 10 next to be turned. The operating arm is spring-returned and when released, the latch 28 is raised and the latch 15 lowered. A book 30 at the end of the bar 6 may engage all the arms 10 when the turning mechanism is not required. Leaf holders 12' on each arm 10 clip the top edges of the leaves and pendent bars 31 on each arm are placed behind each leaf. If the music is bound, arms with horizontal portions 35 are inserted behind each leaf to assist turning. Loose sheets are clipped at 33 to a pendent bar 31 and a pivoted lateral arm 35 engages the back of each slieet.
Patent GB-297371-A (GB)
Title: Improvements in and connected with illuminated display or advertising apparatus
IPC: G09F19/18
Filed: 1927-06-17
Abstract: 297,371. Sieber, J. June 17, 1927. Drawings to Specification. Optical-projection apparatus.-Screens for optical projection may be composed of a sheet of transparent material, such as celluloid, backed by thin sheets of paper; or a number of translucent screens may be superimposed close together to give the image a relief effect.
Patent GB-515525-A (GB)
Title: Improvements in or relating to electron multipliers
IPC: H01J1/13
Filed: 1938-05-31
Abstract: 515,525. Electron multipliers ; thermionic cathodes. STANDARD TELEPHONES & CABLES, Ltd. May 31, 1938, No. 16243. Convention date, June 23, 1937. [Class 39 (i)] In an electron multiplier used to amplify small currents the. thermionic cathode works at a temperature of between 100-150C. and the grid has a space charge control ; one arrangement uses perforated secondary emitting electrodes with intermediate focussing cylinders. The cathode comprises a hollow soldered box 1, Fig. 4, of silver, provided with the usual oxidized and caesiated surface, and internally heated by a wire, e.g. of ferro-nickel, wound on a mica former 4. Further mica insulating plates 6 are provided on each side of the heater. Alternatively, the heating elements may be graphite rods. The emissive layer may be mounted on an insulating coating on a nickel layer which acts as a resistance heater, or may be on moulded insulating plates 8, 8<1>, Fig. 8, mounted back to back with the heating elements 5 between them. A solid insulating coated cathode may be cylindrical in form with an axial heater. Gold or other similar metals may be used and the coating may be rubidium or sodium ; the metal surface may be roughened by sand-blasting.
Patent GB-1463968-A (GB)
Title: Coring tool
IPC: E21B17/042
Filed: 1975-04-21
Abstract: 1463968 Coring tools HAWERA PROBST KG HARTMETALL-WERKZEUGFABRIK RAVENSBURG 21 April 1975 [23 April 1974] 16316/75 Heading B4C [Also in Division E1] A coring tool for a hammer drill comprises a drill shank 2 which takes a centring bit 4 and has a front portion 11 which comprises a groove 12 and lands 13, which lands in use are a sliding fit inside similar surfaces 24 to produce a helical passageway 22 in which a coiled wire spring 16 is located to secure the coring member 17 on to the drill.