baber/WOPTO huggingface dataset:
Patent GB-557855-A (GB)
Title: Improvements in a locking assembly of fastening members
IPC: F16L15/00
Filed: 1942-06-04
Abstract: 557,855. Locking nuts and other fastening members; pipe joints. DEHN, F. B. (Miller, A. W.). June 4, 1942, No. 7621. [Classes 44 and 89 (i)] [Also in Group XXVIII] Self-locking nuts, pipe joints &c. are formed in two parts that interengage by members eccentric to the bolt, pipe &c., means being provided to determine the free and locked positions. The nut section 1. Fig. 1, has an eccentric projection 6 received in a correspondingly eccentric socket 7 in the part 2. The faces 9, 10 are inclined at the thread angle. A thin rib 14, when the parts are forcibly axially assembled in the position of Fig. 1, engages the inclined bottom 17 of an undercut groove 19, becomes curled inwards and holds the parts together as in Fig. 3 which shows the free position when the parts are coaxial. The projection 20, Figs. 1 and 4, is reduced in thickness for rather more than 180 degrees and forms shoulders 22 for engagement with a pin 23 in the other nut part. The parts are thereby arrested after rotation to maximum locking position so that there is no tendency to work loose. The relative rotation may be arrested by contact of the faces 9, 10 or of the outer faces of the nut. One of the faces may be square with the axis and carry a projecting pin to contact the inclined face. In the case of small nuts a segmental rib on one part engages an annular groove in the other blocked at one point by a pin. The device may be employed, to secure a fastening on non-threaded ribs or tubes, unthreaded nut-like members being employed. A single pin is located on the periphery of the eccentric surface of one part to co-operate with two such pins or the other. Another arrangement for coupling two pipes comprises a sleeve which may have right- and left-hand threads, 72, Fig. 14, or may be plain. Eccentric portions 62 coact with eccentric sockets 64 in members fitting the pipes at 63. Projections 67 co-operate with shoulders forming the ends of raised sections 68 on an intermediate collar 71. In a modification for say small and thin tubes 78, Fig. 17, a split sleeve 75 is interposed between the tubes and the parts 76, 77. The sleeve 75 may be chamfered to fit flanges 81 on the tubes and these flanges may be upset to fill the chamfering when the sleeve 75 is contracted by relative rotation of the parts 76, 77 due to the engaging eccentric surfaces. For very thin or delicate parts rubber &c. sleeves may be interposed.
Patent GB-540828-A (GB)
Title: Improvements in impulse modulation of high frequency oscillators
IPC: H03C5/04
Filed: 1940-04-29
Abstract: 540,828. Valve modulating circuits MARCONI'S WIRELESS TELEGRAPH CO., Ltd. April 29, 1940, No. 7659. Convention date, April 29, 1939. [Class 40 (v)] For economizing power in an impulsemodulated magnetron oscillator, the magnetron anodes are directly supplied from a D.C. source during the impulses, whilst the electro-magnet is supplied with current from a condenser which is charged from the D.C. source during intervals between pulses. The modulating source 39 supplies sinusoidal voltages to the grid of a waveshaping valve circuit 47 which during each positive half-cycle supplies a flat-topped positive pulse to the grid of a valve 45. Current then passes from the source 35 through the valve 45 into the condenser 43. During the opposite half cycle the condenser 43 discharges through the magnetizing winding 31 of the magnetron oscillator 7, and through a pentode valve 49 the grid of which has been rendered positive by a shaping circuit 51 supplied from the modulating source 39. Impulses are also applied through a delay network 41 and a shaping circuit 37 to a modulating valve 33 which causes D.C. voltage to be applied to the end-plates 9, 11 of the magnetron slightly later than the electromagnet winding 31 is energized, thereby causing the emission of a pulse of carrier wave from the aerial 19.
Patent GB-911411-A (GB)
Title: Improvements in or relating to moving coil loudspeakers and to radio receiving apparatus including such loudspeakers
IPC: H04R9/02
Filed: 1959-03-05
Abstract: 911,411. Loud-speakers. TELEFUNKEN G.m.b.H. March 5, 1959 [March 5, 1958], No. 7666/59. Drawings to Specification. Class 40 (4). In a moving-coil loud-speaker having a diaphragm of maximum diameter not greater than 215 mm., one or both polepieces have applied to their surface or surfaces adjacent the moving coil a coating of material of higher conductivity than that of the polepiece or polepieces, the thickness of the coating or aggregate thickness of both coatings being 0.2 Œ 0.05 mm. Where the loud-speaker is elliptical the geometric mean should be not greater than 215 mm. The coating may be of copper or silver.
Patent GB-119419-A (GB)
Title: Improvements relating to Sparking Plugs for Internal Combustion Engines.
Inventor: JOUFFRET HENRI VICTOR JULES
IPC: H01T13/54
Filed: 1918-05-08
Abstract: 119,419. Jouffret, H. V. J. Jan. 14, 1918, [Convention date]. Sparking-plugs. - The combustion space within the plug casing is divided into two portions a<1>, a<2> separated by a constriction a<3>. The space a<2> has fitted therein a member d having a large central opening d<1> and smaller passages a<2> surrounding it.
Patent GB-955318-A (GB)
Title: Improvements in or relating to a clutch for watch main springs and other precision instruments
IPC: G04B1/20
Filed: 1962-02-27
Abstract: 955,318. One-way acting friction devices; lubricating. INTERNATIONAL MICROMECHANISMS CORPORATION. Feb. 27, 1962 [Feb. 27, 1961], No. 7710/62. Headings F2A and F2E. [Also in Division G3] A coil spring driven mechanism (for example a watch) includes a coil spring 2 fixed at one end to an arbor 3 to which is secured a rotatable friction element formed by a special ratchet wheel 7, a fixed second friction element formed by a cam and plate assembly 13, 14 and ball or roller mechanisms 18 movable into and of wedging relationship to relatively inclined surfaces according to the direction of rotation of the ratchet wheel 7. The watch movement shown in Figs. 1 and 2 shows a ratchet wheel 7 associated with the arbor of the barrel 1 containing the main spring 2, a crown wheel 11 and the centre pinion portion 4 of the watch movement to eliminate the customary click spring arrangement and replace it with a smoothly operating brake system of the above kind whereby the main spring may be prevented from being overwound and may be released from the final winding tension. In operation, application of a winding force to the crown wheel 11 in the direction of the arrow W<SP>1</SP> will rotate the special ratchet wheel 7 in the direction of the arrow W<SP>11</SP>, during which operation the rollers 18 will tend to move freely to the positions indicated by the full lines in Fig. 1. When the application of the winding force ceases either during winding or when the spring 2 has reached its fully wound position, the spring ratchet wheel 7 will rotate in the reverse direction BL and will move one or more of the rollers 18 towards the cam surface portion 16<SP>11</SP> where each roller will become wedged between its associated portion 16 and the wall 9 as indicated in the broken lines in Fig. 1, the reverse motion of the ratchet thus being arrested. Instead of the roller braking action being radial the frictional action may be effected in an axial direction by means of the alternative embodiment shown in Figs. 4 and 5 (not shown). A further embodiment (not shown) describes an arrangement where the cam plate, ratchet wheel and rollers are in a sub-assembly which can be handled as a unit. The rollers used in the above mechanism may be constructed such as to retain adequate quantities of lubricant for long periods of time. This is achieved by means of the arrangements shown in Figs. 14-16 inclusive wherein the interfaces between parts of the brake roller provide capillary or retaining areas from which oil will circulate to adjacent surfaces by centrifugal action.
Patent GB-413609-A (GB)
Title: Improvements in centrifugal separators
IPC: B04B9/12
Filed: 1934-03-12
Abstract: 413,609. Centrifugal machines. AKTIEBOLAGET SEPARATOR, 8, Fleminggatan, Stockholm. March 12, 1934, No. 7763. Convention date, March 11, 1933. [Class 23.] The shaft 2 of a centrifugal separator is supported in a bearing 4 mounted with an elastic ring element 5 in an annular channel formed in the frame 3 and the cover ring 8. The adjacent edges of the channel and the parts 3, 8, are milled off to form a V-shaped annular notch 6 which communicates with the chamber containing the oil bath by one or more channels 7. Any oil pumped up by the vibratory movement of the ring 5 will therefore flow back through the channels 7.
Patent GB-555774-A (GB)
Title: An improvement in or relating to step ladders
IPC: E06C1/16
Filed: 1942-06-09
Abstract: 555,774. Step ladder. MARSHALL, D. J., WALKER, E., and DENTON, J. E. June 9, 1942, No. 7845. [Class 20 (ii)] A step ladder has the hinge parts constructed so that the hinge-pin is relieved from stress under load. The ladder comprises a front ladder portion a and a rear strut frame d, both provided with overlapping plate portions e, f on each side, to support a hinge-pin g. The upper portions of the uprights of the strut frame are shaped at d<SP>1</SP>, d2 to form bearing portions which abut against the rears of the ladder sides and a crossbar c, respectively, when the ladder is in open position, as shown in Fig. 5. The back strut frame is stiffened by transversals and diagonals.
Patent GB-838750-A (GB)
Title: Process for preparing copolymers
IPC: C08F218/08
Filed: 1958-03-12
Abstract: Vinyl acetate-vinyl (or -vinylidene) chloride copolymers are produced in aqueous dispersion in presence of polyvinyl alcohol (e.g. containing 3-10% non-hydrolysed acetyl groups) as dispersing agent and an organic peroxide or diazo compound as catalyst (e.g. lauroyl peroxide or azodiisobutyronitrile), after which the copolymer, preferably after separation from the aqueous dispersion, is heated in aqueous suspension for 30-180 minutes at 30-80 DEG  C. in the presence of maleic, oxalic or phthalic acid (preferably 25-100 gms/litre thereof).  The monomeric mixture may contain additionally a third monomer, e.g. maleic anhydride or fumaric acid.  It is stated that the process of the present invention (a) solubilizes the copolymers whereas the use of mineral or organic acids other than those specified is ineffective in this respect, and (b) allows the formation of films free from clouding and which have lower permeability to air and to water vapour.  Specification 767,951, German Specifications 647,116 and 746,655, and U.S.A. Specification 2,137,627 are referred to.
Patent GB-304072-A (GB)
Title: Improvements in spring supports for axles of vehicles
IPC: B60G21/05
Filed: 1928-03-16
Abstract: 304,072. Gatter, W. March 16, 1928. Springs, arrangement of; axles and axle attachments.-In vehicles in which the axles are connected by longitudinal pivots to a central frame, transverse springs arranged edgewise in the direction of travel are located in the horizontal plane containing the axle or are adjacent to and arranged symmetrically of the axle. In the construction shown in Figs. 2 and 3, each wheel is mounted at the end of an axle 4 rigid with a cross bolt 5 connected by longitudinal pivots to a part 6 of the framework. Two plate springs. 7 tapering in plan towards the wheels on each side of the vehicle are arranged in the plane of the wheel axis on each side of the axle 4. The springs pass through slots in the bolts 5 and their ends are attached to the ends of the axles by pins 8 carried by adjustable eccentric bearings 10 shown in Fig. 4. In a modification, Fig. 5, four springs 12 are provided, the upper and lower springs being arranged symmetrically above and below the axle. When applied to a driving-axle, cantilever springs are fixed at their lower ends to the gear casing.
Patent GB-870361-A (GB)
Title: Load hoisting mast
Inventor: GUNNING ALFRED WAYNE
IPC: B66F9/08
Filed: 1959-03-09
Abstract: 870,361. Fork lift trucks. MULTI-LIFT CO. March 9, 1959, No. 8034/59. Class 78 (3). A lift truck mast comprises a fixed lower section 32, an intermediate section 34 secured to the piston rod 70 of an hydraulic ram, the cylinder 58 of which is supported by the section 32, an upper section 36 carrying a lifting carriage 42, a pair of cables 82 anchored at 84, 90 on the cylinder 58 and section 36 respectively, and passing over pulleys 76 on section 34, and a pair of cables 80 passing over pulleys 74 on section 36 and anchored at 94, 96 to the section 34 and carriage 42 respectively. In operation extension of the ram moves the carriage continuously with a 3: 1 velocity ratio. In a modification (Figs. 8-10, not shown) a similarly constructed mast is provided with a further movable section and has a velocity ratio of 4: 1. U.S.A. Specification 2,514,052 is referred to.
Patent GB-1173198-A (GB)
Title: Improvements relating to Three-Phase Alternators
IPC: H02K16/00
Filed: 1967-02-20
Abstract: 1,173,198. Alternators. CONSTRUCTORA ELECTRICA ESPANOLA S.A. 20 Feb., 1967 [28 Sept., 1966], No. 8040/67. Heading H2A. A 3-phase alternator has two interdigitated field pole systems 9, 10 mounted on a shaft, with exciter windings 11, 12 respectively, and co-operating with two stator rings 5, 6 carrying 3-phase windings 7, 8. The individual phase windings of the stators may be connected in series or parallel and supply a load through a full wave rectifier system. In a modification a single 3-phase winding may be wound on both rings. The field coils are connected in parallel with a D.C. supply through slip rings 13, 14 mounted on the rotor, axial contact being made with slip ring 13 and radial contact with slip ring 14 by respective brushes.
Patent GB-583168-A (GB)
Title: Improvements in or relating to temperature-sensitive members for thermostats
IPC: G01K5/68
Filed: 1943-05-21
Abstract: 583,168. Temperature-responsive actuating- elements. LANDIS & GYR SOC. ANON. May 21, 1943, No. 8101. Convention date, July 15, 1942. [Class 64 (ii)] [Also in Group XXXVII] A' temperaturesensitive device comprises a helical bimetallic strip 8 connected at one end to an internal helical bimetallic strip 9 wound in the opposite direction and of greater thermal inertia so that it has a slower response. The free. end of the strip 9 is connected by a rod 10 to a contact arm 14. The thermal inertia of the strip 9 may be varied by an internal rod 12 or by a suitable choice of ratio of its volume to its surface. In a modification, Fig. 2, the faster strip 28 is fixed at 30 and connected. at 31 to a rod 26 the opposite end of which is connected to the slower strip 33, the free end of which carries an actuating member 35. The faster strip may be surrounded by a good heatconducting medium, and the slower strip by a less conducting medium, or air. The effect of the device is to close the contact k or w before the final temperature response is reached, to avoid over-regulation. The slower strip may have the same expansion as the faster strip, in which case the device would react to rates of temperature variation but not to different static temperatures. The Specification as open to inspection under Sect. 91 describes also a modification in which a brass tube 1, Fig. 1 (Cancelled), surrounds a rod 2 of "Invar" (Registered Trade Mark) connected to a brass rod 4 which acts as the slower retarding member. In another modification, Fig. 3 (Cancelled), suitable for application to a pipe line 19, the faster member 21 is a bimetallic spiral in a casing 20 packed with copper powder, and the slower member 23 is a bimetallic spiral oppositely wound and packed in heat-insulating powder, or alternatively having a different ratio of cross section to surface. In a variation of this form, Fig. 4 (Canceled, not shown), the spiral 23 is within the spiral 21 and may be surrounded by air. In another modification, Fig. 6 (Cancelled), a hollow cylinder 36 and a bulb 37 within it, contain the same or different expansible fluids, or vaporizable fluid, and are connected to expansible chambers 39a, 40 which jointly operate and control member 41. The bulb 37 has the greater thermal inertia by reason of its ratio of cross-section to volume, or the surrounding air, or surrounding insulating powder. This subject-matter does not appear in the Specification as accepted.
Patent GB-879345-A (GB)
Title: Improvements in or relating to blast furnace stove bottom construction
IPC: C21B9/00
Filed: 1960-03-08
Abstract: 879,345. Hot-blast stoves. KOPPERS CO. Inc. March 8, 1960 [Sept. 28, 1959], No. 8161/60. Class 64(1) The lower portion of the bottom shell section 25 of a high pressure hot-blast stove is embedded on erection in a concrete foundation mat 24 and is anchored thereto by means of anchor rods 29 secured as by welding to the shell section 25 and terminating below the top of the mat. The shell section 25 may as shown, be initially supported and levelled on struts 26 which ultimately become embedded in the mat when the concrete is poured. The top surface of the mat is then covered by a plate 33 which is welded to the shell section 25 and the upper shell sections 28 are welded in place.
Patent GB-1028820-A (GB)
Title: Process for the production of 1,3,5-trimethylenetrisulphone derivatives containing one to three hydroxyl groups
IPC: C08G63/688
Filed: 1963-03-01
Abstract: Hydroxy aliphatic or substituted aliphatic derivatives of 1,3,5-trimethylene trisulphone, which may itself be substituted are prepared by heating, or by mixing at room temperature, the 1,3,5-trimethylene trisulphone or substituted derivative with epoxide compounds of the aliphatic, cycloaliphatic, or aromatic series, in an aqueous alkaline medium.  The epoxide and alkali are present in at least stoichiometric amounts with the sulphone. Specified epoxides are: ethylene oxide, propylene oxide, butylene oxide, butadiene monoxide, undecylene oxide, cyclodecene oxide, styrene oxide, and compounds containing groups such as ether and ester groups as well as epoxy groups, such as: lauryl glycidyl ether; 2,3-epoxy butyric acid butyl ester, epoxy [1,1,2]-bicycloheptyl methyl propionate.  The sulphone reactant may bear one or two saturated or unsaturated hydrocarbon radicles, such as allyl, diallyl, or benzyl, or groups linked to the nucleus by means of a functional group, such as ethoxytrimethylene trisulphone, or acetyl trimethylene trisulphone. The reaction is carried out in aqueous alkaline medium, using sodium or potassium hydroxide, or an aqueous solution of an amine, such as tetramethyl ammonium hydroxide. With less water-soluble epoxides as reactants, a solubilizer, such as water-soluble aliphatic alcohols, glycols or dioxane may be used; water-insoluble solvents, such as benzene, toluene, carbon tetrachloride, butanol or amyl alcohol may also be used, providing that good dispersion in the aqueous phase is effected by such means as stirring.  Examples are given for preparation of (1) trishydroxypropyl 1,3,5-trimethylene trisulphone; (2) 4,6 - bis - hydroxypropyl - 2 - allyl - 1,3,5 - trimethylene trisulphone; (3) bis-hydroxypropyl - 1,3,5 - trimethylene trisulphone and (4) 2-[phenylhydroxyethyl]-1,3,5-trimethylene trisulphone.  These compounds may be used as initial materials for the production of Slasticizers, anti-statics, pharmaceuticals, polyesters and alkyd resins.
Patent GB-228741-A (GB)
Title: Process and apparatus for the precipitation of tricalcium saccharate
IPC: C13B35/04
Filed: 1924-04-01
Abstract: 228,741. Steffen, C. April 1, 1924. Purifying saccharine liquids; refining sugar.- In a process for precipitating calcium trisaccharato from sugar solutions by means of powdered lime the lime is strewn on a liquid surface as free from scum as possible. For this purpose the solution is circulated by a pump P through a precipitating chamber F and a cooling chamber B and the lime is strewn on the surface of the liquid in the chamber B by means of a feed-wheel W. The solution passes from a chamber F to the chamber B through a passage R provided with a valve 0 which can be so set that the level of the liquid in the chamber F is always above the opening of the passage R. In the form shown in Fig. 2 the lime is strewn on the liquid in its passage from the cooling chamber 1 to the precipitating chamber 7. The passage 4 between the two chambers is not of sufficient capacity to carry the whole amount forced by the pump, and a supplementary passage 6 is provided which may open in the chamber 1 above the passage 4 as shown, or may be controlled by a float valve.
Patent GB-1371105-A (GB)
Title: Starter motors
IPC: F02N15/06
Filed: 1971-04-03
Abstract: 1371105 Starting I C engines JOSEPH LUCAS (INDUSTRIES) Ltd 9 March 1972 [3 April 1971] 8628/71 Heading F1K A starter motor for an I.C. engine comprises a shaft 12 rotatable in casing 11 and carrying armature assembly 13 and pinion assembly 15, which is axially movable between a retracted position and an operative position in which a pinion 18 engages a ring gear of the engine, the shaft 12 and pinion assembly being connected by a screw thread, a member 22 being frictionally engaged with the pinion assembly for rotation therewith and a detent 26 engageable with member 22 to resist rotation of the member and drive the pinion assembly towards the operative position when the shaft 12 rotates. In the operative position, the detent lies adjacent the side of the member 22 remote from pinion 18 to resist movement of the pinion assembly to the retracted position, the detent returning to a position clear of the pinion assembly when the starter motor is de-energized. The detent is operated by electromagnets 27 energized simultaneously with the starter motor. The member 22 is a disc having teeth which are engaged by arm 26a of detent 26.
Patent GB-549442-A (GB)
Title: An improved cigarette holder
IPC: A24F13/02
Filed: 1942-06-24
Abstract: 549,442. Cigarette holders. REWELL, H. June 24, 1942. No. 8630. [Class 130.] A cigarette holder comprises a mouthpiece D, a metal end part B having a push fit on the mouthpiece and formed with arms C to engage a cigarette, and a wire filter A inserted in the part B. The arms C are narrow enough to allow a cigarette to be smoked down to the end. The filter is formed from a wire gauze blank, Fig. 1, by rolling up the part a<SP>1</SP> into a cylinder and bending over the parts a<SP>2</SP>.