baber/WOPTO huggingface dataset:
Patent GB-806363-A (GB)
Title: Improvements in or relating to dental instrument stands adapted to extend vertically when the stand is disposed for use and having a hand-piece supporting unit
IPC: A61C19/00
Filed: 1956-11-07
Abstract: 806,363. Dental stands. SIEMENS-REINIGER WERKE A.G. Nov. 7, 1956 [Feb. 28, 1956; March 2, 1956], No. 34047/56. Class 81 (2). In a dental stand the spray and other instruments are carried in a support which is mounted for movement about a vertical axis set forward of the axis of the main column. In the arrangement described the support 15, carrying instruments 19, is provided with a bearing 17 and pivot pin 16 for angular movement in a recess in a casting 11. The pulleys 21, over which the tubes or cords 20 pass, are grouped close to the axis of the pin 21 and counter-weights 26 are provided, sliding on guide-rods 25. The axes of the holders for the various instruments 19 radiate from a common point and are set at differing angles to the horizontal so that they are separated for convenient handling.
Patent GB-1313612-A (GB)
Title: Workpiece support device for a machine tool
IPC: B23Q1/48
Filed: 1970-07-14
Abstract: 1313612 Work-tables AUTOMOBILES PEUGEOT and REGIE NATIONALE DES USINES RENAULT 14 July 1970 [1 Aug 1969] 34067/70 Headings B3B and B3T A workpiece support device comprises a fixed bed D, a saddle E mounted on said bed to be slidable in a first direction, a chassis F mounted on said saddle to pivot about a first axis Y orthogonal to said first direction, a table G mounted on said chassis to be rotatable about a second axis Z-Z orthogonal to the pivot axis Y of the chassis, the device including means for effecting each of said sliding, pivoting and rotating movements, fluid operated locking means for maintaining the various parts in a given position relative to each other, and fluid operated weight relieving means provided between the saddle and the bed, and between the table and the chassis respectively, being responsive to the magnitude and position of the load carried by the table. The saddle E is movable on the bed D by means of a lead screw rotated by an hydraulic motor engaging a nut in the saddle. The chassis F is pivoted by hydraulic rams 46. The table G is rotated by an hydraulic motor which drives through gears which engage an internal gear ring of the table. The table may be continuously rotated during a continuous machining operation, or may be indexed by increments. Clamping.-The various movable parts are clamped relative to their adjacent parts by means of hydraulic jacks which pull clamping rods to engage a head in T-slots, e.g. in T-slots 64 formed in a side wall 24 of the chassis F. The bed D is clamped to a concrete base C by means of bolts, the bed being adjusted by means of screw operated wedges (2) (Fig. 3, not shown). Weight compensating.-The device is used to support large heavy workpieces weighing up to 25 metric tons. To assist in movements of the saddle and table, when the clamping jacks are released plungers carrying rollers, e.g. (39), (34b), (Fig. 3, not shown), are forced down on to hardened steel strips (6) formed in the guideways. Further eccentrically adjustable rollers (7) engage a face of the strip (6) to give lateral guidance. The plungers (34) are spaced along the saddle E for bearing on the bed D and a different pattern of plungers are automatically actuated defending upon the pivoted position of the chassis F. The chassis F includes plungers and rollers (69b), (Fig. 5, not shown), that bear against a steel strip on the rotatable table G. A further weight loading arrangement is included to operate on a flange of the table and comprises a jack operated lever (74) which includes a roller to act on the said flange. The weight compensating and loading plungers are operated automatically as the chassis F is pivoted. Automatic control.-Movement of the saddle is controlled by stop 99, 100 engaging valves 97, 98. Position detectors 44, 45 are used to automatically operate the weight compensating and loading plungers as the chassis is pivoted. Fast and slow movements are provided. The support device is used with a machine tool A, e.g. a milling, boring or planing machine.
Patent GB-1075218-A (GB)
Title: Preparation of alkyl chlorides
IPC: C07C17/08
Filed: 1965-08-10
Abstract: Alkyl and cycloalkyl chlorides are prepared by reacting additively hydrogen chloride and a liquid olefin in the presence of a liquid catalyst consisting of a Lewis acid dissolved in a polar organic diluent whose dielectric constant is greater than 20 and which is inert under the reaction conditions, the catalyst being immiscible or substantially immiscible with the olefin, whereby the reaction product consists of two liquid phases, one being essentially the alkyl chloride and the other being the Lewis acid solution.
Patent GB-395245-A (GB)
Title: Device for indicating the failure of the rear and stop lanterns of an automobile
IPC: B60Q11/00
Filed: 1932-12-02
Abstract: 395,245. Lamp-failure warning-devices. GELLIN, H. A. H., 5B, Norgesgade, Copenhagen. Dec. 2, 1932, No. 34217. [Class 118 (ii).] On a motor vehicle having a tail lamp 1 and a '' stop " lamp 11, a single tell-tale lamp 9 is used which lights faintly when the tail lamp alone is burning and brightly when the " stop " lamp is burning, and is extinguished when none of the lamps is burning. This result is obtained by a relay 3 attracting an armature 5, when the tail lamp 1 is lighted, and closing a circuit through a resistance 10 and the tell-tale lamp 9 ; while when the " stop " lamp 11 is lighted a relay 13 attracts an armature 15 and closes a circuit across the tell-tale lamp 9 which does not include the resistance 10. In practice a single source of current is used instead of the three sources 2, 8, 12.
Patent GB-471798-A (GB)
Title: An improved method of welding and brazing
IPC: B23K35/28
Filed: 1935-12-10
Abstract: A stick, rod, wire or the like for welding or brazing consists of an alloy of zinc with 24-42 per cent of copper and 0,25-20 per cent of nickel or cobalt, with or without any of the following: up to 20 per cent of cadmium, up to 3 per cent of silicon or aluminium or both, and up to 4 per cent of silver.  According to the Specification as open to inspection under Sect. 91, the alloy may contain also iron, manganese, tin, titanium, boron, phosphorus, and tellurium.  This subject-matter does not appear in the Specification as accepted.
Patent GB-426281-A (GB)
Title: Improvements in, or relating to, automatic circuit-breakers
IPC: H01H71/74
Filed: 1933-12-07
Abstract: 426,281. Electrically - released switches. CRABTREE, J. A., Endwood, Little Aston Park, Sutton Coldfield. Dec. 7, 1933, No. 34372. Divided out of 415,393. [Class 38 (v)] Relates to a breaker of the kind in which thermal trip device is adapted to operate a trip-catch so as to break a toggle, and in which initial setting, and subsequent adjustment, of the release point is effected by a device arranged between the tripcatch and thermal trip device. Such circuitbreakers are disclosed in Specifications 415,393 and 418,361. The thermal device is connected to, or drives against spring-action p<4>, a slide p having a gate p<1> which, at a given overload setting, comes into full register with a tongue o<2> on a tappet o, which is thus released so as to impinge on the arm g<2> of the trip-catch. The opening movement of the handle or of the toggle moves the tongue o<2> back through the gate by engaging the part o', until the slide is restored by cooling of the thermal element. The spring o<3> actuating the tappet o is housed in a cam t which is manually adjustable so as to move the tappet along its pivot axis o<5> and vary its position with respect to the gate p<1>. The cam may have a pointer co-operating with a fixed dial accessibly mounted on the housing frame. Specification 415,129 also is referred to.
Patent GB-799216-A (GB)
Title: Improvements in drives for plansifters
IPC: B07B1/38
Filed: 1956-11-09
Abstract: 799,216. Sifting apparatus. BUHLER, GEB. Nov. 9, 1956 [Nov. 10, 1955], No. 34381/56. Class 117 A plansifter 1 suspended from rods 2 is gyrated by an out-of-balance weight 8 journalled in bearings 10, 13 on the plansifter structure and rotated by an eccentric part 12 of a drive shaft 4. The eccentricity of the part 12 is equal to the radius of the plansifter orbit, and the said part passes with a clearance through a journal 9, and the drive is imparted to the weight by a leaf spring 18 interconnecting the weight and a lever 14 secured to the part 12. A pin 16 on the weight engages a cup 15 on the lever. A motor 6 drives the shaft 4, the upper end of which runs in a spherical bearing 5.
Patent GB-204295-A (GB)
Title: Improvements in line-spacing mechanism for typewriters
IPC: B41J19/76
Filed: 1922-12-18
Abstract: 204,295. Polygraphische Ges. Sept. 19, 1922, [Convention date]. Line-spacing mechanism.-In a pawl-andratchet line-spacing mechanism for a line-printing typewriter having a platen-roller movable for impression, the pawl-carrier co-operates with a stop which is adjustable on a support to vary the spacing. A ratchet-wheel d connected to a rocking platen-roller a co-operates with a pawl f on an arm g which is connected to a spring r and is provided with a roller h normally abutting on an adjustable stop m. The stop is mounted on a stationary slotted quadrant k and is secured by a nut n. When the platen-roller is rocked for impression the arm is drawn into contact with a stop-pin i, the pawl moving idly. On return of the platen-roller the roller h strikes the stop m, and the pawl turns the ratchet-wheel, the movement being determined by the position of the stop m. The ratchet-wheel may be connected to the platen-roller by reducing-gear, preferably a worm c and a. worm-wheel b. The worm-wheel may be detachably secured to the platen roller by means of a hand-wheel o.
Patent GB-737853-A (GB)
Title: Method of producing electrical condensers
IPC: H01G4/32
Filed: 1953-12-11
Abstract: 737,853. Capacitors. STANDARD TELEPHONES & CABLES, Ltd. Dec. 11, 1953 [Jan. 21, 1953], No. 34514/53. Class 37. In a tubular capacitor comprising alternate metallic and dielectric layers, the dielectric layers produced by winding a layer of glass fibres on to the partly-formed capacitor and then subsequently melting the fibres to form a uniform thin layer of glass. As shown in Fig. 1, a layer of metal 5, e.g. silver or copper, is formed on a central insulating or insulated-metallic core 4 and a layer of glass fibre is wound upon this from a reel 1. - A short length of the metallic layer is left uncovered at one end. The fibres are then fused together and a further metallic coating deposited on the glass layer thus formed, with however the projecting portion at the other end of the capacitor. A further layer of fibres is then wound on to the metallic layer and the process repeated to form a number of metallic layers 5 which alternately project at one end or the other of the capacitor, as shown in Fig. 2. The alternately projecting layers are bound together by means of metallic tapes 6 to which the connecting wires 7 are attached. Finally the whole capacitor is covered with glass fibres which are then melted together to form a glass envelope for the capacitor. As an alternative to the above method of construction, the complete set of alternate glass-fibre and metallic layers may be deposited on to the central core before the heat treatment is carried out, the fusion of all the glass fibres being carried out in a single operation. The core of the capacitor may comprise either a solid rod or hollow tube of a ceramic material, or a high melting-point glass (e.g. quartz glass) or it may be of metal coated with glass. The metallic layers may be deposited as foil or by spraying, dusting, vaporization or cathodic sputtering or by chemical deposition such as by reduction of solutions of inorganic salts or by the decomposition of metallic compounds in the gas-phase (e.g. metal carbonyl compounds). The glass dielectric may have a proportion of other substances added to it to increase its dielectric constant, e.g. the oxides of lead, barium, zirconium and titanium may be added either alone or mixed. The heat treatment may be carried out in vacuo or in a neutral or reducing atmosphere (e.g. hydrogen).
Patent GB-647835-A (GB)
Title: Improvements in or relating to visual signalling apparatus
IPC: G08B5/24
Filed: 1947-12-29
Abstract: 647,835. Electric selective signalling. AUTOPHON AKT.-GES. Dec. 29, 1947, No. 34517. Convention date, Feb. 26, 1943. [Class 40 (i)] The digital indicator discs of a multi-digital number or sign are advanced step-by-step by direct current pulses and are normally precluded from advancing beyond a predetermined position, e.g. the zero position, by respective stops adapted to be released individually by alternating current pulses to permit further stepping, the individual A.C. release means being connected in parallel with their respective D.C. steppers. As shown, the units and tens stepping magnets E, Z, Fig. 1, are energized over lines L1, L2, L3 by closing corresponding switches Ke, Kz and the digital indicator discs are illuminated by respective lamps, Le, Lz energized from an A.C. source LS through a relay L energized with D.C. by closing a switch Kl. A buzzer or other alarm W responsive only to A.C. may be energized over the same lines L2, L4 as relay L by closing a switch Kw. The digital stop-release magnets Se, Sz connected in parallel with the respective stepping magnets E, Z are energized by operating two-way switches Ee, Ez which connect A.C. to the respective lines L3, L1 and disconnect the D.C. therefrom. Indicator construction, Fig. 2. The digital indicator discs Pz, Pe are mounted on spindles W and are stepped in known manner by respective electromagnetically-actuated escapements, Fig. 3 (not shown), such that each step is effected in two halves, the first advance being effected by energization of the magnet and the second advance to complete a step being made by a biassing spring as the magnet is de-energized. The discs may be thus advanced to the " zero " position where stops Az, Ae coact with cams N on the spindles W to lock the indicator discs at the half step before zero so that when the stops are retracted by energization of the respective release magnets Sz, Se, the biassing springs move the discs forward half a step into the zero position.
Patent GB-1431859-A (GB)
Title: Combine harvester
IPC: A01D45/02
Filed: 1973-07-20
Abstract: 1431859 Driving harvester feed conveyors WHITE MOTOR CORP OF CANADA Ltd 20 July 1973 [25 July 1972] 34712/73 Heading A1F [Also in Division F2] Crop is fed from a crop gathering head 10, Fig. 1, into a combine harvester by means of an inclined chain conveyor 17 that is spaced from the bottom wall of an inclined elongate housing 16. The conveyor is mounted on an upper main drive shaft 20, a variable speed countershaft 101, Fig. 2, and a lower idler shaft 21, Fig. 1, which is mounted for limited movement to and from the housing bottom wall so as to allow the belt to accommodate abnormally high loads. The housing is mounted for pivoting by hydraulic 23. The Variable Speed Mechanism Power from the main power unit is transmitted via pulley 70, Figs. 2 and 3 to the inner shaft 60 of two concentric shafts 60, 61, the outer of which supports chains 34, 34'. From the inner shaft 60 the drive is transmitted via pulley 72, belt 98, Fig. 2, variable speed countershaft 101, chain 121, sprocket 71 and outer shaft extension 66, Fig. 3 to the outer shaft 61 to drive the chain conveyor 17. The variable speed countershaft 101 also drives main shaft 124 via belt 123 to drive a transverse crop feed auger 127, Fig. 1. To change the speed of the chain conveyor a lever plate 90, Fig. 3 is moved hydraulically to rotate outer hub 82 an amount sufficient to cause a desired change in the camming between the outer hub and an inner hub 83. The resultant axially inward or outward movement of the inner hub 83 changes the relative position of pulley half 80 with respect to pulley half 75. This alters the tension in belt 98, Fig. 2 and hence the relative positions of the pulley halves which make up variable speed pulley 100. The inner movable half of pulley 100 is biassed outwardly by compression spring 114. Alteration of chain belt elevation  The ends of idler shaft 21, Fig. 1 pass through slotted openings 43, Fig. 8, in the housing side walls with clearance and are fixed in blocks 44 which can slide on rods 45 against springs 48. The rods are pivoted on pins 47 in blocks 46. Abnormally high load conditions cause the idler shaft to rise in the slots 43 against the bias of springs 48.
Patent GB-796046-A (GB)
Title: Thermionic tube and method of making same
IPC: H01J25/22
Filed: 1954-08-30
Abstract: Electrodes of a high-conductivity metal such as copper are coated with nickel carbide by coating first with nickel, and then converting the surface of the nickel into the carbide, in order to inhibit secondary emission.  The electrodes are cleaned, and then plated in a bath with a layer of nickel about 0.0005 in. thick. This is heated to 500 DEG C. or more in hydrogen which has been bubbled through a hydrocarbon such as benzene, gasoline, or kerosene, giving a surface layer of nickel carbide.
Patent GB-813242-A (GB)
Title: Improvements in or relating to grain driers
IPC: F26B17/12
Filed: 1955-12-05
Abstract: 813,242. Drying grain. RANSOMES, SIMS & JEFFERIES Ltd., and JARVIS, J. S. Dec. 5, 1956 [Dec. 5, 1955], No. 34786/55. Class 34(2.) Grain is dried by hot air during its downward passage through zig-zag paths formed by perforate plates welded &c. at their ends to plates 17, baffles 15 being inserted in the spaces between the perforate plates to prevent air - pockets forming and retarding the even flow of the grain. The dried grain leaving the lower ends of the paths is cooled by atmospheric a i r drawn through perforate plates 18 into the space 25 from which the warmed air is supplied to an upper space 2 from which it passes outwardly through the grain entering the zig-zag paths. The main drying is effected by hot air supplied to the space 5 and passing through the perforate plates forming the zig-zag paths to the atmosphere. An oscillatory blade 20 displaces the dried grain into a collecting trough 22. Specification 813,241 [Group XXX] is referred to.
Patent GB-1409054-A (GB)
Title: Hip joint prosthesis
IPC: A61F2/30
Filed: 1971-09-24
Abstract: 1409054 Femoral prosthesis NATIONAL RESEARCH DEVELOPMENT CORP 20 Sept 1972 [24 Sept 1971] 34811/74 Divided out of 1409051 Heading A5R The subject matter of this specification is disclosed in the parent Specification 1409051 with reference to Figure 5 but the claims are directed to a femoral head device comprising a tapered elongate stem connected at its wider end to a ball shaped head through a necked portion which is angled relative to the longitudinal axis of the stem at its narrower end, said device including no flange defining a shoulder facing away from the head.
Patent GB-1183212-A (GB)
Title: Socket with Pivoted Contacts
Inventor: BAILEY RUSSELL ORLANDO
IPC: H01R24/52
Filed: 1967-07-28
Abstract: 1,183,212. Two-part couplings. TEXAS INSTRUMENTS Inc. 28 July, 1967 [8 Nov., 1966], No. 34821/67. Heading H2E. Identical halves 12 of a socket contact, Fig. 4, can pivot about tapered surfaces 22, which are clamped together by rods 21, so that insertion of a tapered contact pin 23 in one end of the socket enables a lead wire 11, e.g. of a transistor to be tested, to be gripped between the halves 12 at the other end of the socket. A shield contact 14 and plastics separator 13, Fig. 1, may surround the socket contact, several such shielded contacts 12-14 being pivotally mounted in bores in an insulating housing 18 by engagement of the rods 21 in aligned notches 32. The tapered contact pins 23 are each surrounded by a plastics separator 16 and a shield contact 17 with shoulders 27 (28, Fig. 2, not shown), which retain the shielded contacts 23-17 in bores in an insulating housing 19, the pins 23 having forward and rearward enlargements 25 (29) which hold them in the separators 16. On engagement of the pins 23 in the sockets 12, lead wires 11 are gripped by the rear ends of the sockets and the shield contacts 14, 17 abut at the forward faces of the housings 18, 19. The retaining rods are of insulating material, and the pins 23 of a beryllium-copper alloy.
Patent GB-890485-A (GB)
Title: A device for regulating a flow of gas
IPC: F23Q2/173
Filed: 1959-10-14
Abstract: 890,485. Regulating fluid flow; valves. SOC. D'ETUDES ET DE RECHERCHES TECHNIQUES. Oct. 14, 1959 [Oct. 14, 1958; May 4, 1959], No. 34857/59. Class 135. [Also in Group XI] A flow regulator suitable for controlling the flow of gas from a reservoir of liquefied gas to a burner of a gas lighter (see Group XI) consists of an element 1, Fig. 1, of elastically deformable material such as P.T.F.E. formed with a passageway 2 and subject to an adjustable axial pressure applied by a hollow screw 7 to an annular zone surrounding the passageway whereby the passageway is contracted laterally and lengthened to provide the desired rate of flow. The hollow screw 7 and a member 3 with which it coacts may be made of brass or of nylon or the screw 7 may be of brass and the member 3 of nylon. When both parts are of nylon, which may have insufficient strength for adequate compression of the element 1, the latter may be precompressed. In a modification, the hollow screw 7b, Fig. 4, carries a washer 16a for compression of the element 1 and is bevelled at 17a to spread the material at the periphery of the element 1 outwardly and upwardly to seal with the housing 4b. The outlet at the upper end of the hollow screw 7b is controlled by a spring-loaded valve member 18 with a sealing ring 20 and a stem 19 for operation by a part 25 of the lighter mechanism. A sealing sleeve 39 prevents leakage of gas which passes to a passage 26 leading to the burner. The valve member 18 may alternatively consist of a disc of sealing material actuated by a. separate stem. In a further modification, the valve member 18 coacts with a seat on the upper side of the washer 16a and is opened by lifting the stem.
Patent GB-1192918-A (GB)
Title: Spooling Device
Inventor: WHARTON WILLIAM
IPC: B65H54/28
Filed: 1966-08-03
Abstract: 1,192,918. Spooling machines. WHARTON ENG. (ELSTREE) Ltd. 31 July, 1967 [3 Aug., 1966] No. 34859/66. Heading D1J. A spooling machine comprises a driven drum 4 onto which wire or the like is wound, a fixed guide 3 and a pivoted arm 22 having two wire guiding pulleys 20, 21, mounted thereon. The arm 22 is mounted so as to pivot in a plane substantially parallel to the axis of the drum 4. (Fig. 1) and is provided with frictional damping for the pivotal movement, (Figs. 4 and 5). One of the pulleys may be adjustable along the arm 22. Adjustable stops (30) may limit the pivoted movement of the arm.