baber/WOPTO huggingface dataset:
Patent GB-287091-A (GB)
Title: Improvements in apparatus for sharpening the knives of slicing machines
IPC: B24B3/46
Filed: 1928-03-13
Abstract: 287,091. Maatschappij tot Vervaardiging van Snijmachines Volgens van Berkel's Patent en van Andere Werktuigen. March 14, 1927, [Convention date]. Machine cutters, grinding in situ. - The rotary knife 9 of a slicing machine is sharpened bv means of a grinding element 1 which is spring pressed against the knife and is looked automatically against movement in the direction away from the knife. In the known apparatus shown in Fig. 1, the grinding wheel is moved up to the knife by a spring 8 when the cam shaft 11 is rotated by a handle 10. The finishing wheel 2 is similarly actuated. According to the invention the grinding spindle is mounted in a sliding sleeve 18, Fig. 2, and is quickly detachable by means of a spring-retained ball device 19. A ball 16 is interposed between the spindle and the sleeve 18. An arm 23 pivoted between extensions of the sleeve 18 is provided with a friction surface 25 eccentric to the pin 22 and engages a cam 12 on the shaft 11. The foot of the cam 23 engages a projection 29. In operation, when the cam 12 is rotated, the grinding- wheel is moved by the spring 8 into contact with the knife and on further movement of the shaft 11 the cam 12 leaves the arm 23 which is then moved by a spring 24 to wedge the surface 25 tightly in the bore of the support 7 and prevent any backward movement of the grinding-wheel. In a modification, Fig. 4, a pin 28 screwed into the end of the member 18 passes through a hole in a boss 26 on the arm 23. When the cam 12 leaves the arm 23 after the grinding wheel has engaged the knife, a spring 27 causes the boss to rock about the point of the projection 29 and the boss then becomes jammed in the bore and prevents backward movement of the grinding wheel until the arm 23 is again operated by the cam to withdraw the wheel from operative position. The invention is also applicable to the finishing- wheel 2.
Patent GB-307751-A (GB)
Title: Improvements in or relating to road-making materials and to the construction of roads
IPC: E01C7/18
Filed: 1929-03-08
Abstract: 307,751. Lefebvre, C. G. J., and Berger, E. E. F, March 12, 1928, [Convention date]. Bituminous compositions. - A tarry binder .adapted to be applied to roads as a dressing or mixed with stones to form tar macadam has incorporated with it a mineral filler, consisting of an impalpable stone powder passing a 300 screen, the filler amounting to at least 60 per cent by weight of the tar mixture. Non-porous natural or artificial stone is used as the filler, for example crushed or ground quartz sand, quartzites, porphyries, diorites, hard or marmorean limestones, clinkers, &c. Porous or conchiferous limestones, lime, chalks, slags, slates, and clays are not suitable. In an example 80 per cent of filler is added to a binder consisting of 100 parts of tar, 40 parts of coal pitch and 10 parts of petroleum bitumen. Larger grained sand may also be added to the binder. Specification 216,911 is referred to.
Patent GB-270260-A (GB)
Title: Improvements relating to refrigerating apparatus
IPC: F25B39/02
Filed: 1927-03-21
Abstract: 270,260. Chicago Pneumatic Tool Co., (Assignees of Davenport, R. W.). April 29, 1926, [Convention date]. Refrigerators, domestic and like. - An evaporator or freezing-element is formed of plates 11, 12, Figs. 1 and 2, spaced apart by dimples formed on the inner plate, the liquid refrigerant being supplied to the distributing- trough 16 through a duct h communicating with the pressure side of the compressor. The Specification, as open to inspection under Sect. 91 (3) (a) comprises also a domestic refrigerator having an evaporator consisting of a tubular coil secured to a plate forming the back and top of the cooling-compartment of the refrigerator and communicating with the evaporator of the freezing-compartment and the suction side of the compressor. In a modification, the evaporator consists of spaced plates which may form the lining of the sides as well as of the top and bottom of the cooling- compartment. Specification 249,097, is referred to. This subject-matter does not appear in the Specification as accepted.
Patent GB-271417-A (GB)
Title: Connection-device for securing the arms of a shock-absorber to the axle and to the frame, specially for motor-vehicles
IPC: B60G7/00
Filed: 1927-03-21
Abstract: 271,417. Compagnie d'Applications MÚcaniques. May 22, 1926, [Convention date]. Vibration-dampers.-A flexible joint for connecting the arm of a vehicle vibration damper to the frame or to the axle includes a member having two pivotal arms 6, 7 at right angles to one another, one arm 1 of the vibration damper being connected to the pivotal arm 7 while the other pivotal arm 6 is mounted in a bracket 2. The arm 1 is clamped by a nut 15 on a sleeve 16 which pivots on the arm 7, an antifriction brush 12 being provided. Dust proof washers 18, 19 clamped up by the nut 17 and spring washer 17<1> are provided. The connection between the arm 6 and the bracket 2 includes spherical bearing surfaces on the shoulder 4, the bracket 1. the washer 9, and the nut 10.
Patent GB-604362-A (GB)
Title: Improvements in or relating to flexible passages for chutes
IPC: F41A9/57
Filed: 1945-03-28
Abstract: 604,362. Ammunition shoots. HUGHES TOOL CO. March 28, 1945, No. 7839. Convention date, Oct. 27, 1941. [Class 92 (ii)] [Also in Group XXX] A flexible passage or shoot for the passage of flexible devices, such as ammunition belts, includes a number of transverse elements disposed sideby-side to outline the passage, means for interconnecting the elements for limited movement towards and away from one another, and a number of overlapping wall plates supported within the passage by the transverse elements and forming an articulated lining therefor. Fig. 7 shows a part of one form of shoot in a partly completed condition, this construction comprising a series of spaced elements 30 consisting of a length of wire bent to the shape shown for the passage of belted ammunition from a container to a gun. The lower runs of the elements are bent to provide a recess 33 to provide a clear passage for the ammunition belt, and the upper parts of the elements leave, as shown, a longitudinal opening 32 for access throughout the length of the shoot. The loops formed on the upper parts are embraced by flat loops of thin sheet metal segments 37 which are pinched at 42 to prevent removal. Each loop is extended in the direction of travel of the ammunition to form a wall plate 40 which overlaps the next segment. The sides of the shoot are also fitted with similar segments 36 which are staggered in relation to the segments 37, and the lower wall of the shoot is similarly fitted with segments 38 on both sides of the recess 33, these being staggered in relation to the segments 36. The segments 36 and 38 are also formed with wall plates similar to the plates 40. By this construction the elements are permitted to move towards one another or can move to enable the shoot to be flexed in all directions. The ends of the shoot have their side wall segments suitably constructed for ready attachment to the gun and to the ammunition container. In a modification, Fig. 12, the elements 70 are formed of separated lengths of wire, having their ends 71 turned up. to retain segments 37 in position, and in another modification, Fig. 13 (not shown), the elements are formed of separate closed loops, no opening 32 being provided in this construction. Fig. 14 shows another construction in which the elements 83 are formed of a single length of wire fitted with segments 86, 87, 88 to form a closed shoot. In another modification the loops of the various segments embrace three adjacent runs of the wire.
Patent GB-1419091-A (GB)
Title: Vehicle suspension systems
IPC: B60G17/00
Filed: 1972-02-21
Abstract: 1419091 Controlling vehicle suspension height AUTOMOTIVE PRODUCTS Ltd 19 Feb 1973 [21 Feb 1972] 7921/72 Heading B7D In a vehicle suspension including a control valve 21 arranged to connect the output of a pump 19 to a reservoir 18 when the suspension level is normal, to increase the pressure of liquid supplied to the pump 19 to non-return valves 44, 45 so that liquid is supplied through the valves 44, 45 to hydropneumatic suspension struts 10A, 10B when the level is low, and to allow liquid to return from the struts to the reservoir when the level is high, the non-return valves 44, 45 and further non-return valves 56, 57 through which the liquid returns from the struts to the reservoir prevent interchange of liquid between the struts to provide roll resistance, and the control valve 21 includes damping means which prevent the valve from responding to transient suspension movements caused by road surface irregularities. The control valve 21 includes a spool 32 which is displaced in accordance with movements of an axle 11A by linkage including resilient elements 34, 34A. Movement of the spool 32 in one direction blocks communication through a recess 54 between recesses 42, 43 connected to the pump and reservoir respectively so that pressure at the non-return valves increases and liquid is supplied to the struts, and movement in the opposite direction opens communication between a recess 55 and the recess 43 so that liquid is discharged from the struts to the reservoir through the non-return valves 56, 57. Diaphragms 35, 36 form damping chambers 37, 38 at each end of the valve 21 so that when the spool 32 is displaced liquid is forced out of one chamber through a restriction 40 or 41 as liquid is freely admitted to the other chamber from the recess 43 through passages 53, 46 and 51 or 52. Non-return valves 47, 48 permit undamped or less-damped return movement of the spool, and the degrees of damping provided for up and down movements of the axle may be different. The pump 19 supplies the control valve 21 through a pressure limiting valve 22 and a flow regulating valve 23 both incorporated in the reservoir 18. In another embodiment, Fig. 6 (not shown), the level control valve has associated therewith a brake pressure limiting valve which limits braking pressure in dependence on the load on the suspension struts. In a further embodiment, Fig. 9 (not shown), the suspension height is detected by mieroswitches connected through an electronic damping circuit to solenoid valves controlling liquid supply to and discharge from the struts.
Patent GB-373320-A (GB)
Title: Improvements relating to wireless direction finding apparatus
IPC: G01S1/02
Filed: 1931-03-16
Abstract: 373,320. Directive wireless signalling. SIEMENS BROS. & CO., Ltd., Caxton House, Tothill Street, London, and PRICE, T., Glenview, Glascoed, Pontypool, Monmouthshire. March 16, 1931, No. 8064. [Class 40 (v).] An automatic correction is made for quadrantal error, when taking bearings on a wireless direction-finder, by means of an adjustable cam which imposes a relative movement between the reading-scale and a pointer which indicates the corrected bearing. The cam 12 is flexible so that the correcting " contour " can be adapted to different circumstances by means of a number of radial screws 13. As the shaft 1 of the frame aerial is rotated, to take a bearing, the cam 12 causes a bell-crank lever 22, pivoted at 20, to swing a quadrant frame 15, carried on a ring 14, to one side or other of its normally-fixed position. This imparts a corresponding movement to an index point 24, Fig. 3, marked on the rim of the quadrant, and causes that point to indicate the " corrected " bearing on a scale 27 which rotates with the aerial shaft 1 and handwheel 5.
Patent GB-1189973-A (GB)
Title: Cytostatically-Active 2',3'-Didesoxy-3'-Fluoropyrimidine-Nucleosides
Inventor: ETZOLD GERHARD
IPC: C07H19/06
Filed: 1969-02-14
Abstract: 1,189,973. Pyrimidine nucleosides. DEUTSCHE AKADEMIE DER WISSENSCHAFTEN ZU BERLIN. 14 Feb., 1969, No. 8107/69. Heading C2C. Novel, cytoatatically active compounds I wherein X is oxygen, sulphur or imino and R is hydrogen, halogen, hydroxy, mercapto or unsubstituted or substituted alkyl, are obtained by reacting a corresponding pyrimidine nucleoside, appropriately substituted on the oxygen of the 3<SP>1</SP>-hydroxy group, with a fluoronation agent. 2<SP>1</SP>,3<SP>1</SP>-Didehydro-3<SP>1</SP>-desoxy-thymidine is prepared by treating 1-(2<SP>1</SP>,3<SP>1</SP>-didesoxy-3<SP>1</SP>-fluoro- #-D-pentofuranosyl)-thymine (a compound of the invention) with aqueous alcoholic sodium hydroxide solution.
Patent GB-535596-A (GB)
Title: Improvements in and relating to hobbing machines
IPC: B23Q35/10
Filed: 1940-05-06
Abstract: 535,596. Gear-cutting. CLEVELAND HOBBING MACHINE CO. May 6, 1940, No. 8133. Convention date, May 5, 1939. [Class 83 (iii)] A gear-hobbing machine has work and tool spindles driven in timed relation, one of the spindles being supported in a slide which has a depth feed normal to the work axis dmparted by toggle mechanism actuated by a cam acting on the knuckle of the toggle. The hob spindle 10 carrying the hob H is mounted in a head C slidable to and from the work on horizontal guides. The work W is driven from a spindle 11 and supported by an upper tail stock 16. A motor 17 mounted within the base is connected by belt gearing 19 to a shaft 18 connected through a vertical shaft 26, shaft 31, change gears 32 and worm gearing 34 to the work spindle. The shaft 18 is also connected through a shaft 45 and gearing 47 to the hob spindle, which with its housing 40 is angularly adjustable about the axis of the shaft 18. The hob head is fed towards the work by toggle mechanism comprising links 50, 51 and 52, 53, Fig. 6, connected by a knuckle pin 54 which carries a roller 72. The knuckle is urged upwards to withdraw the hob head by a spring 65. The feed towards the work is produced by a cam 70 driven from the shaft 18 by gearing which includes a vertical, shaft 76 and change gears 77. The shaft 71 of the cam carries a disc 81 fitted with a pin 82 which alternately actuates limit switches 83, 84 in the control circuit, Fig. 7. At the start of a cycle switch 84 is held open by pin 82 and the operator starts the machine by pressing push button 86, completing a circuit from line L3 through switches 89, 86, 83 solenoid 93 of relay 94 to line L1. The closing of contacts 96, 97 of the relay completes a circuit through solenoid 99 contacts 96, 97 and switches 86, 89 thus closing the contacts 103 ... 106 and starting the motor 17. The contacts 103 establish holding-in circuits for solenoids 93, 99 after release of the start button 86. When the motor starts, rotation of pin 82 allows switch 84 to close thus maintaining the circuit of solenoid 99 after the opening of contacts 96, 97. Half-way through the cycle, switch 83 is opened by pin 82, de-energizing the solenoid 93 so that when the switch again starts the circuit of solenoid 93 is not established. On completion of the cycle, the pin 82 opens switch 84 and stops the motor 17 after a comolete feed and withdrawal movement of the hob slide. The cycle can be repeated by pressing the start button 86 and the motor 17 can be stopped at any time by depressing stop button 89. In some cases the left hand toggle pivot 55 may be raised above the level of the right hand pivot so that straightening the toggle will also tend to hold the hob head down on its guides.
Patent GB-336195-A (GB)
Title: Improvements in and relating to methods of welding
IPC: B23K35/30
Filed: 1930-03-13
Abstract: 336,195. Schimer, H. J. March 25, 1939, [Convention date]. Uniting by fusion.-Scale-resisting steels containing aluminium are welded by electrodes or rods of scale-resisting steel alloys not containing aluminium in order to render the weld scaleresisting. Articles composed of an aluminium steel alloy containing either 0.08 per cent of carbon and 3.5 per cent of aluminium, or 0.1 per cent of carbon, 2.7 per cent of aluminium, 4 per cent of chromium and 0.3 per cent of molybdenum, or 0.07 per cent of carbon, 4.5 per cent of aluminium and 5.5 per cent of chromium may be welded by a scale-resisting steel alloy rod containing 0.10 per cent of carbon, 14 per cent of chromium and 2 per cent of nickel, or 0.15 per cent of carbon and 0.6 per cent of nickel together with either 12 or 13 per cent of chromium, or from 0.15-0.4 per cent of carbon, 18-20 per cent of chromium, and 4-7 per cent of nickel, or 0.3 per cent of carbon, and 22 per cent each of chromium and nickel, or 0.05 per cent of carbon, 14 per cent of chromium and 1-3 per cent nf molybdenum, nr 0.02 per cent of carbon, 18 per cent of chromium and 0.4 to 2 per cent of molybdenum. The Specification as open to inspection under Sect. 91 (3) (a) states that the rod may also consist of an alloy composed of 30-40 per cent of chromium together with 70-60 per cent of nickel. This subject-matter does not appear in the Specification as accepted.
Patent GB-125930-A (GB)
Title: Improvements in Lubrication Systems.
IPC: F16N7/22
Filed: 1919-04-01
Abstract: 125,930. British Westinghouse Electric & Manufacturing Co., (Assignees of Schmidt, H. F.). April 24, 1918, [Convention date]. Centrifugal-action lubricators.-A lubricating- device for a shaft bearing comprises a loose ring or chain 9 which raises oil from a well 8 and delivers it to a centrifugal impeller 10 mounted on the shaft 5. The impeller delivers the oil under pressure through openings 13 to passages 14 leading to the bearing 6, and, if desired, through a passage 15 leading to other bearings. Oil entering a groove 18 at the end of the bearing returns to a well through a passage 19.
Patent GB-1363212-A (GB)
Title: Mandrel assembly for use in a pattern disc preparation machine
IPC: D04B37/04
Filed: 1972-02-22
Abstract: 1363212 Knitting machines; pattern discs STIBBE-MONK DEVELOPMENTS Ltd 23 Jan 1973 [22 Feb 1972] 8210/72 Heading D1C [Also in Division B3] Pattern discs 4 are assembled on a vertically disposed mandrel 5 but thick semi-circular spacers 1, 2 are placed between each disc in addition to the usual spacer 3. The assembly is clamped together, and after the necessary teeth have been broken off, it is placed horizontally on a transfer device (Fig. 6) and the clamping pressure released by unscrewing the clamping handle 11c so that the semi-circular spacers drop out. The handle is removed, the mandrel is swung into alignment with the pattern unit spindle 31, and the pattern discs and the small spacers slid from the mandrel on to the spindle.
Patent GB-1535851-A (GB)
Title: Safety device for the drain outlet of an open receptacle
IPC: A47J47/20
Filed: 1976-03-02
Abstract: 1535851 Drain filter SAFETY-KLEEN CORP 2 March 1976 [12 March 1975] 08233/76 Heading B1D A safety drain device to ensure drainage of liquid from a receptacle even when the drain outlet of the receptacle is blocked, comprises a first perforated wall portion 48 (Fig. 5) for insertion in the drain outlet and arranged to extend across that outlet; means, e.g. annular rim 44, for locating the device in the opening; and a laterally and upwardly extending second perforated wall portion 52, 56 integral with the first wall portion and which, in use, co-operates with the base 38 (Fig. 2) and wall 14 of the receptacle to form a conduit providing an additional drainage path to the outlet. The device may be applied to receptacles for solvent washing of parts comprising an open receptacle to which solvent is fed via a pump from a container to which the solvent returns via the drain outlet. In the embodiment shown in Figure 2, the solvent leaving the receptacle passes through a mass 36 of filter material supported on perforate member 34.
Patent GB-804342-A (GB)
Title: Improvements in or relating to electronic discharge lamps
Inventor: ELPHICK GEORGE STANLEY
IPC: H01J61/30
Filed: 1954-03-23
Abstract: 804,342. Discharge lamps. RANK CINTEL, Ltd., March 22, 1955 [March 23, 1954], No. 8445/54. Class 39(1). A flash discharge lamp comprises envelope portions 1, 2 joined by a capillary portion 3, the portions 1, 2 containing hollow cylindrical main electrodes 4, 5, and the portion 2 containing an auxiliary electrode 10 behind the main electrode 5. The auxiliary electrode 10 comprises a glass-coated wire and light from the auxiliary discharge is shielded from the main discharge along the capillary portion 3 by a diaphragm 12 across the main electrode 5. The electrodes 4, 5 are supported by leads 6, 7 terminating in conducting caps 8 and 9. The filling is a mixture of nitrogen and helium at 10 mms. pressure. A circuit arrangement for operating the lamp can be as described in Specification 804,343 [Group XXXV] which includes means for maintaining between the auxiliary electrode 10 and the main electrode 5 a small continuous discharge during periods when the lamp may be required to fire.
Patent GB-1416761-A (GB)
Title: Extraction of metal values from sulphidic materials
IPC: C01B17/06
Filed: 1973-02-21
Abstract: 1416761 Extraction of metal values from sulphidic materials INTERNATIONAL NICKEL CO OF CANADA Ltd 21 Feb 1973 [22 Feb 1972] 8448/73 Heading C1A Finely divided sulphidic mineral materials, e.g. ores and concentrates, containing one or more non-ferrous metal values are reacted at a temperature not exceeding 110‹ C. with an aqueous acidic solution containing hexavalent chromium, e.g. sulphuric acid admixed with a chromate or dichromate of sodium, potassium, or ammonium or chromic acid, in order to both oxidize most of the sulphide sulphur to elemental sulphur and sulphate and to dissolve the metal value or values. The resulting slurry is then heated in an autoclave to a temperature above the melting point of sulphur to melt the sulphur, the reaction mixture is cooled to form pellets containing the sulphur, unreacted sulphides and any precious metals present, and the pellets are then separated from the solution containing the dissolved metal values. Metals recovered by the process include Ni, Co, Cu, Pb and Zn. If Fe is present, it may be precipitated from the leach liquor containing ferric sulphate as ferric hydroxide by raising the pH to above 2. The spent aqueous acidic solution may be regenerated electrolytically.
Patent GB-739856-A (GB)
Title: Improvements in plug-in pipe connections
Inventor: LIGHTOWLER LESLIE ERNEST
IPC: F16L29/00
Filed: 1954-03-24
Abstract: 739,856. Pipe couplings. LAYCOCK ENGINEERING, Ltd. March 24, 1954, No. 8551/54. Class 99 (1). The coupling comprises a spigot member 7 which is advanced into the cylindrical bore 4 of a socket member 9 by a coupling nut 8 rotatably mounted on the spigot and screwing on to the socket, and a spring-loaded valve 2 contained within a chamber 1 of the socket and having a hollow stem 3 which fits within the bore 4 and has openings 3B. The valve is raised from its seat 6 by the spigot after the latter has passed a sealing ring 12 located in the socket recess 13. The parts are so arranged that the seal is broken on disconnection before the nut disengages from the socket screw thread, pressure being relieved through a hole 11 in the nut. The nut may be mounted by a pair of transverse pins 19 engaging between collars 17 on the spigot.
Patent GB-100741-A (GB)
Title: Variable Rate Electricity Meter with Two Counters.
IPC: G01R11/56
Filed: 1916-06-17
Abstract: 100,741. Landis & Gyr Soc. Anon. June 22, 1915, [Convention date]. Addition to 1010/12. Void [Published under Sect. 91 of the Act]. Drawings to Specification. Lighting-systems.-In an electric supply system having a meter with different counters for different classes of consuming-apparatus, the throw-over from one set of counters to the other being effected when a change is made in the class of consuming circuits, the electro-magnet causing the throw-over is energized when any one branch circuit of, say, a lighting-system is closed. The change-over may be effected by closing a power circuit.