baber/WOPTO huggingface dataset:
Patent GB-438528-A (GB)
Title: Tension varying means with special reference to ships' lifeboat hoisting gear, load transmission gears, torque meters and the like
IPC: B63B23/04
Filed: 1934-05-18
Abstract: 438,528. Shock-absorbing devices. CLARKE, CHAPMAN, & CO., Ltd., Victoria Works, Gateshead-on-Tyne, and MIDGLEY, W., 42, Marine Avenue, Monkseaton, Northumberland. May 18, 1934, No. 15047. [Class 78 (ii)] [See also Groups XXXIII and XXXII] A device for absorbing shocks in raising- and lowering-gear particularly applicable to boat-handling gear but which may also be employed as a shock-absorbing device in transmission mechanism of motor vehicles, lifts, electrical speed load gear comprises a two-armed lever 3, pivoted at 4, to one end of which the rope transmitting the pull is attached, the other end being loaded by the spring 5. The arrangement is such that while the rope acts on the lever with a gradually decreasing lever arm the moment of the spring load is inversely increased. A typical lay-out is shown in Fig. 2, in which the bight of the falls finally passes round a pulley 7 on the arms 3 which are acted upon by springs 8 associated with rods 9 sliding through pivoted reaction seats 10. To enable the boat hooks to be readily applied, the duplex form shown in Fig. 8 is employed in which the spring- controlled arms 3 are pivoted intermediate their length on the main arms 3<a>. For absorbing shocks on starting-gear, the differentialgear 20 is interposed between the motor 16, the load 17, and the winch drum 19.
Patent GB-593137-A (GB)
Title: High-frequency signal-transmitters
IPC: H03F1/06
Filed: 1944-08-08
Abstract: 593,137. Radio transmitting systems. MARCONI'S WIRELESS TELEGRAPH CO., Ltd. Aug. 8, 1944, No. 15098. Convention , date, Dec. 29, 1942. [Class 40 (v)] A transmitter for high-frequency continuous wave communication comprises a source of H.F. oscillations, a load circuit, and means for applying the oscillatory power in widelyspaced short pulses to the load through a selective circuit to remove modulations of pulse frequency. As shown, two valves 1, 2 are connected in a conventional push-pull crossneutralization circuit. A tuned input circuit 3 is connected between the grids of the valves and their anodes are connected to a tuned output circuit 4, which is inductively coupled to a load through transmission line 5. Continuous high-frequency energy is supplied to input circuit 3 by source 6. Polarizing potentials are applied to the anodes of valves 1, 2 by pulse transformer 8, connected to the midpoint of the inductance of output circuit 4. The primary of transformer 8 is connected between the positive terminal of an H.T. supply and the anode of keyer valve 9. The pulse generator 10, which may be keyed by the signal to be transmitted, is arranged to provide pulses of short duration compared to the intervals between them. The voltages applied to the anodes of valves 1, 2 for the duration of the pulses are much higher than the continuous voltages which may be safely applied. Selective output circuit 4 is of the low-loss type, designed to pass the carrier frequency and signal variations of it, but to filter out any pulse frequency modulations. The output of carrier source 6 may be interrupted by a telegraph key, or modulated in phase or frequency ; or the D.C. potential applied to the pulser 9 may be amplitude modulated. The output of source 6 may be pulsed in synchronism with the anode voltages applied to valves 1, 2.
Patent GB-341374-A (GB)
Title: Improvements in change-speed gearing
IPC: F16H3/04
Filed: 1930-05-16
Abstract: 341,374. Variable-speed gearing. SOC. ANON., DES ANCIENS ETABLISSEMENTS HOTCHKISS ET CIE, 6, Route de Gonesse, St. Denis, Seine, France. May 16, 1930, No. 15109. Convention date, April 18. Addition to 333,491, [Class 80 (ii), Gearing, Variable-speed &c.]. [Class 80 (ii).] Variable-speed gearing yielding four speeds comprises aligned driving and driven shafts 3, 6, a parallel countershaft 20 and a double gear element 15 supported upon a fixed eccentric drum 12 supported at both ends. The element 15, which does not slide as in the main patent, has teeth 17 constantly meshing with internal teeth 18 on a wheel 19 fast on the driven shaft 6. Upon shaft 20 constantly driven from shaft 3 through pair 4, 21 are coupled splined sliding gears 23, 25. A combined pinion and clutch 9 is loose on shaft 6 and splined at 4a to shaft 3. When element 9 is slid to the left, clutch teeth 10 engage teeth 8 on the driven shaft, effecting a direct drive. When element 9 is slid to the right, pinion 9a meshes with internal teeth 16 on element 15, which thus drives wheel 19 at third speed. Second and lowest speeds are effected by bringing gear 23 into mesh with external teeth 24 on element 15, and by bringing gear 25 into mesh with wheel 19, respectively. Reversal is effected by a double idler connecting gears 23, 19, and the control of element 9, of the countershaft gears, and of the reversing-gear is similar to that of the main patent.
Patent GB-206098-A (GB)
Title: Improvements relating to high resistances for grid leaks, as used in wireless telegraphy and telephony apparatus, and the like
IPC: H01C10/12
Filed: 1923-06-11
Abstract: 206,098. Watkins, A. E. June 11, 1923. Contacting solid resistances.-A variable high resistance, particularly for use as a grid leak in the control of thermionic valves, comprises a number of pallets m enclosed in an insulating tube a between a terminal plug b and a plunger f, separated by a compression spring g from a plunger e adjustable by a screw j having an insulating knob l. The screw passes through a plug c integral with a supporting disc d. Metal discs n may be provided between the pellets m and the plug b. The pellets may be discs of fibrous material such as card or papier-mÔchÚ covered or impregnated with carbon or other material of low conductivity, or may be made of a compressed mixture of insulating and slightly conductive material. The pellets may alternatively be spherical.
Patent GB-312639-A (GB)
Title: Improvements in and relating to the controlling of aircraft
IPC: B64C13/00
Filed: 1929-05-15
Abstract: 312,639. Junkers, H. May 29, 1928, [Convention date]. Steering and balancing.-An aircraft control surface is provided with an auxiliary balancing surface engaged by a spring which tends to maintain it in the plane of the control surface, the ratio of the deflection of the balance surface to that of the control surface being greater at large angles of adjustment of the control surface than smaller angles. Fig. 4 shows a control surface 16<1> having forwardly directed arms carrying a pivoted balance surface 12<1> pivoted behind its leading edge and having its trailing edge connected by a spring 6<1> to a point in the plane of the control surface. Stops 5<1> limit the movement of the balance surface, but these may be omitted if a stronger spring 6<1> is used. A forwardly projecting weight 7<1> statically balances the surface 12<1> about its pivot and the whole apparatus has its centre of gravity on the axis of the control surface 10<1>. The Specification as open to inspection under Sect. 91 (3) (a) comprises also the following subject-matter. The spring 6<1> may be omitted, the control surface being provided with a forward extension sufficient to balance it until the surface 12<1> comes up against one or other of its stops. This surface. 12<1> and its stops may be carried by a separate lever linked to the control surface so as to move therewith. In another construction the balance surface is geared to the main control surface through variable velocity toothed or cable gearing so as to move through a progressively greater angle as the main surface is deflected. Fig. 2 (Cancelled) shows an arm 40 on the balance surface moving in a cam 39 carried by a fixed portion of the aircraft. This subject-matter does not appear in the Specification as accepted.
Patent GB-563286-A (GB)
Title: Improvements in wringing machines
IPC: D06F45/24
Filed: 1942-10-29
Abstract: 563,286. Wringers. ACME WRINGERS, Ltd., and BURT, T. W. Oct. 29, 1942, No. 15223. [Class 138 (ii)] A wringing machine comprises an upper frame part 13 of inverted U-form and a lower frame part 14 attached to and forming, in conjunction with the upper part, a supporting frame for rollers 15, 16, the upper roller 15 being journalled in fixed bearings 21 in the frame part 13 and the lower roller 16 in bearings 19 guided in the frame part 14 and supported on springs 23 carried by bolts 20 penetrating the side limbs of the upper frame part 13. One end of the shaft 18 carrying the roller 16 is prolonged to receive the usual crank handle. The frame parts 13, 14 are so shaped that only the effective area of the rollers is exposed and the part 14 closely fits the lower roller 16 to provide a shoot for water expelled from wet articles.
Patent GB-1287714-A (GB)
Title: Thermosetting moulding powders
IPC: C08F2/44
Filed: 1971-05-17
Abstract: 1287714 Moulding powder FORD MOTOR CO 17 May 1971 [5 June 1970] 15225/71 Headings C3B and C3P A thermosetting moulding powder comprises: (A) a copolymer of (I) glycidyl methacrylate, (II) methyl methacrylate and (III) acrylonitrile and/or methacrylonitrile, and (B) as curing agent an aromatic amine which contains at least one primary amino group. (A) may contain 15-35% by wt. of I, 10-30% by wt. of III and 35-75% by wt. of II. A minor proportion of II may be replaced by another ethylenically unsaturated monomer, e.g. styrene, vinyl acetate or an ester of (meth)acrylic acid with a C 2 -C 4  alkanol. (A) may have a M.W. of 1500- 16000, a softening point of 50-130 C. and may be prepared by solution or suspension polymerization. (B) may be 4,4<SP>1</SP>-methylenedianiline and may be present so as to provide 0À75-1À5 active hydrogen atoms for every epoxy group in (A). A cross-linking catalyst, e.g. urea, methyl urea, an imidazole or a BF 3  complex, may also be present. A reactive diluent, e.g. a liquid diepoxide may also be employed in the composition.
Patent GB-1109043-A (GB)
Title: A variable speed hydro-mechanical transmission mechanism especially suitable for heavy vehicles
IPC: F16H47/04
Filed: 1966-04-06
Abstract: 1,109,043. Epicyclic gearing. T. TAKEKAWA. 6 April, 1966 [26 Aug., 1965], No. 15252/66. Heading F2D. A hydromechanical transmission consists of swashplate pump and motor units of which the cylinder blocks 9, 37 are formed with an extension of the input shaft 7 and a sleeve shaft 34 respectively, these shafts carrying the elements 15, 40 of a hydraulic clutch and sun pinions 57, 53 respectively meshing the planets 59, 54 of two epicyclic gear units driving the output shaft 43. The first gear unit has intermeshed planets 54, 55, and the ring gears 56, 58 of the respective units are formed within a common annulus. Planets 54 are carried by the motor casing 27, which may be held by a band brake 60, the clutch 15, 40 then being disengaged, operation of the hydrostatic gear varying the speed ratio of sun pinions 53, 57 for the normal drive range of the shaft 43. Release of brake 60 results in engagement of clutch 15, 40 to lock pinions 53, 57 for overdrive. In a further arrangement, Fig. 13 (not shown), the gear planets are of stepped form.
Patent GB-688294-A (GB)
Title: Improved apparatus for supporting pottery ware in a kiln or the like
IPC: F27D5/00
Filed: 1950-06-20
Abstract: 688,294. Supporting pottery during firing. HEWITT & SON (FENTON), Ltd., J., and HEWITT, D. K. June 4, 1951 [June 20, 1950], No. 15351/50. Class 87(i) Pottery supports particularly for soup plates comprise rings a each formed with an inwardly and downwardly directed flange a<SP>1</SP> having recesses a<SP>2</SP> and/or projections to receive separate plate-supporting elements b as described in Specification 660,893. Interengagement between successive rings may be provided by tongues a' and recesses a<SP>4</SP> or by a continuous flange and recess.
Patent GB-150841-A (GB)
Title: Improvements in and relating to moulds for the production of railway sleepers, blocks and the like from plastic material
IPC: B28B7/00
Filed: 1919-06-19
Abstract: 150,841. Gey, F. J. June 19, 1919. Moulds.-A mould for the production of railway sleepers, blocks, &c. from plastic material, comprises a base 1 having flanges 2, sides 3 carried by T-bars 6 pivotally connected to the flanges 2 at 14, such bars being arranged in pairs having upwardly extending portions terminating respectively in an ear 17 pivotaily supporting a clamping- bar 18 and a lug 16 to receive a loop 21 on the bar, and ends 22 fitted over bolts 23 on the sides to which they are clamped by nuts 26. The webs of the bars 6 are cut away to form shoulders 10 adapted to rest upon the flanges 2. Bolts 28. forming part of the article, are supported by studs 27 disposed longitudinally on the base 1.
Patent GB-673973-A (GB)
Title: Improvements in or relating to fastener-inserting machines
Inventor: ELLIOTT HAROLD ERNEST
IPC: A43D79/00
Filed: 1949-06-10
Abstract: 673,973. Nailing. BRITISH UNITED SHOE MACHINERY CO., Ltd. June 9, 1950 [June 10, 1949], No. 15451/49. Addition to 623,594. Class 89 (iii). In a modification of the boot nailing machine described in the parent Specification, a single feeler 41 is provided to control by hydraulic means movement of the edge gauge 11 about the axis 13 of the driver in its driving position. The feeler 41 is pressed forwards by a light spring 77 acting through a rod 83 slidable in a feeler valve sleeve 85 which is itself slidable in a main valve sleeve 89. The latter is pressed forwards by a strong spring 93 and is slidable in a guide sleeve 91 mounted in a valve body 31. The rod 83, sleeves 85, 89, 91 and valve body 31 are provided with openings and passages through and along which oil under pressure is arranged to flow to a piston cylinder 103 by way of tubes 107, 122. The piston 111 is connected by a pin 112 to a swinging frame 67 which is coupled by parallel links 61, 63 and pivots 59 to upwardly extending blocks 55, 57 on a slide 15 which carries the edge gauge 11. The slide 15 is adjustable on a carrier 21 by manually operable pinion 25 and rack 23. The valve body 31 is adjustable about a boss 35 by a screw 49 having flanges between which a pin 45 on the valve body engages. The awl 1 is secured to a vertical awl bar 125 slidable. in a frame 127 which swings about the axis 13 of the driver in unison with movements of the edge gauge. The swing- ing frame 67 is coupled to an arm 137 on the frame 127 through a link 167, lever arm 163, shaft 161, lever arm 159, link 147, ball joint 143, link 141, and ball joint 139. In order to ensure that the hole made by the awl is always aligned with the driver, a controlling link 145 is connected between the ball joint 143 and a lower arm 149 of a lever 151 mounted on a spindle 153. An upper arm 169 of the lever 151 is connected by a ball joint 171, link 173, ball joint 175 (not shown), arm 177, shaft 179 (not shown), forked arm 183 formed with slots 185 engaging blocks 187, pivot 189, and an arm 191 to a rock-shaft which operates the swinging head 5 to feed the work. The joint 143 and shaft 161 are aligned when the swinging head reaches the end of its feeding movement thereby ensuring alignment of the awl and driver, whatever the position of the feeler 41. Specification 4471/03, [Class 89]; is referred to.
Patent GB-1468804-A (GB)
Title: Damping vibrations in sheet metal
IPC: B60R13/08
Filed: 1973-03-31
Abstract: 1468804 Vibration damping PRODUCTION ENG RESEARCH ASSOCIATION 12 March 1974 [31 March 1973] 15609/73 Heading F2S [Also in Division E2] Vibrations in sheet metal (sheets or components) are damped by a sheet, strip, or "tailormade" cover of vibration damping material held on with magnets (or magnetic particles in the material). The vibration damper may be a layer of rubber or plastics material containing ferrite particles or pieces of magnetic material or permanent magnets in bar or disc form. A laminate may be formed of a sheet of vibration damping material, a flexible magnetic sheet and a linen backing sheet. A flexible magnetic plastics sheet may be loaded with lead to increase its weight. If the sheet or component to be damped is of non-magnetic metal, a magnetically responsive backing is attached first.
Patent GB-1532314-A (GB)
Title: Automatic performance reserve(apr)system
IPC: G05D1/00
Filed: 1976-04-15
Abstract: 1532314 Automatic electric control of aircraft engines BOEING CO 15 April 1976 [22 April 1975] 15620/76 Heading G3N In an automatic performance reserve system for a multi engined aircraft in which each engine has a fuel flow control unit 38, 39, 40 and engine failure detector, 19, 21, 23 circuit 12 is provided which responds to failure of an engine at take off to actuate the fuel flow control units of the remaining engines and thereby minimize power loss. The engine rotation speed is sensed by detectors 19, 21, 23 and on reaching a predetermined upper speed representative of takeoff a signal is generated which causes relays 27, 28, 29 to operate. Subsequent reduction of any one engine speed below a predetermined lower value causes the 28v source 70 to be connected to the fuel control units 38, 39, 40 of the remaining engines, increasing the fuel flow and the thrust produced. An arming circuit 14 makes the circuit 12 ready before takeoff in response to lowering of the flaps, at 31 and an undercarriage grounded signal at 32. Retracting the flaps after take-off or reduction of all engines below the predetermined lower speed e.g. if take-off is aborted, disarms the circuit. A warning light 44 indicates a fault condition in the system e.g. loss of power from source 70 or failure of arming relay 30 to energize or de-energize at appropriate times. A test circuit 10 is provided which connects the 28v source 70 to each of the fuel flow control units and lights the warning light 44.
Patent GB-218328-A (GB)
Title: Improvements in electrical structures
IPC: H01G4/38
Filed: 1924-06-30
Abstract: 218,328. Dubilier, W. June 30, 1923, [Convention date]. Protective arrangements.-An electrical structure comprises a plurality of electric devices, such as condensers, resistances or inductances, and insulators, the structure being built up of secticns alternately including one or more insulators and a plurality of the electric devices. In the, arrangement shown, the insulation sections 2 comprise single insulators 4 built up in a vertical column, and the sections 3 each comprise a number of parallel-connected condensers 15 mounted between the insulators 4 on platelike conducting members 9 having radial arms 12. The low-voltage elements of each condenser are in electrical connection with the casing which is provided with terminal lugs 17 by means of which it can be secured to the radial arms 12. The high-voltage terminals 19 of the condensers in each section are electrically connected to each other and to the low-voltage side of the succeeding section by conductors 20, only one of which is shown in Fig. 1. In a modified arrangement, the insulators are built up in a number of parallel columns connected together by conducting cross members to which the condensers are secured. Specification 153,027, [Class 3R (iii), Electric motor control systems &c.] is referred to.
Patent GB-254323-A (GB)
Title: Improvements in or relating to machines for cutting wooden pins or sticks
IPC: B27L9/00
Filed: 1926-06-24
Abstract: 254,323. Bussy, A. June 26, 1925, [Convention date]. Cutting up.-In the production of match sticks the end of a timber baulk 29 is scored by a nest of blades 4 reciprocated horizontally by a connecting-rod 5 and the scored end is sliced off by a rotary knifes 10 reciprocated vertically. Both cutting actions take place at each reciprocation, the feeding means for the timber being by ratchet mechanism (not shown). Several scoring devices with coacting knives may be used, two in the example illustrated. Reciprocations of the knife carrier 8 is effected by a connecting-rod 14 reciprocated by a cam plate 20 with a groove 19 in which travels a pin 18 on the connecting rod. The shape of the groove allows the carrier 8 to dwell at each end of its travel so as to permit of the scoring action. Rotation of the knife shaft 9 is by worm gearing 24, 26 through a telescopic shaft 25. The scoring cutter may be rocked instead of reciprocated.
Patent GB-885089-A (GB)
Title: Method of preparing shaped articles from high molecular weight highly crystalline polypropylene
IPC: B29C35/02
Filed: 1958-05-19
Abstract: Shaped articles of polypropylene are formed by compressing powdered highly crystalline polypropylene in a mould at 200 kg. per square cm. pressure either at a temperature of 150 DEG  to 200 DEG C. so as to form a completely coherent mass, or at a temperature below 170 DEG C. to form a partly coherent mass which is rendered fully coherent after withdrawing it from the mould and heating it to 170 DEG  to 190 DEG C. in a liquid or gaseous medium.  The polypropylene preferably has a molecular weight of at least 1,000,000.
Patent GB-735434-A (GB)
Title: Improvements in or relating to lock-nuts
IPC: F16B39/286
Filed: 1952-06-25
Abstract: One-piece lock nuts of the type having a deformed section defined by a transverse slot are made from an alloy hardened after manufacture to above Brinell 250, preferably 325, or in a modification, to between 375 and 425.  A suitable steel contains (per cent, apart from Fe): C 0.7 to 0.95, Si 0.15 to 0.35, Mn 0.3 to 0.6 with P below 0.035 and S below 0.03.  This steel is hardened to between 420 and 500. Another steel has C 0.22 to 0.28, Si 0.15 to 0.35, Mn 0.4 to 0.7, Cr 0.9 to 1.2, Mo 0.15 to 0.20 with P below 0.03 and S below 0.015. This steel is hardened to between 265 and 365.
Patent GB-905658-A (GB)
Title: An improved method of fine annealing transparent vitreous silica
Inventor: JACK KENNETH HENDERSON
IPC: C03C23/00
Filed: 1959-12-08
Abstract: 905,658. Annealing vitreous silica. THERMAL SYNDICATE Ltd. Dec. 7, 1960 [Dec. 8, 1959], No. 16119/62. Divided out of 905,657. Class 56.  Vitreous silica is annealed in an atmosphere in which the water vapour is maintained substantially in equilibrium with the constituent water content of the silica. The water content may vary from substantially dry to the use of pure steam when the silica has an optical density at a wavelength of 2.73 microns of from 1.2 to 1.5 per mm. The silica may be placed in a chamber which is flushed with a stream of gas inert to the silica, the gas first passing through a container of water or water-vapour evolving material. Alternatively the material to be annealed is packed into a gas-tight container, which is evacuated, sealed and then heated. The pieces of material to be annealed may be packed with fine particles of silica having the same water content. A gas-tight chamber containing the silica may be connected to a second chamber containing water-vapour producing compounds, the temperature of the second chamber being separately controlled. Silica samples may also be annealed in an atmosphere comprising the products of combustion of fuel, to which water may be added.
Patent GB-1537079-A (GB)
Title: Photographic colour diffusion transfer process
IPC: G03C8/52
Filed: 1977-07-21
Abstract: 1537079 Photographic colour diffusion transfer process KODAK Ltd 21 July 1977 [21 April 1976] 16140/76 Heading G2C A photographic colour diffusion transfer process comprises causing a colour image-providing substance(s) diffusing towards an image-receiving layer to pass through an intermediate layer(s) containing an amount of mordant for at least one of the substances not more than sufficient to prevent the appearance of stain in the colour image formed in the image-receiving layer. The amount of mordant may be 0À2-1À6 mg/dm<SP>2</SP>. The imagereceiving layer preferably contains a weaker mordant than that in the intermediate layer. In the Examples the intermediate layer contains terpoly [styrene-(N-vinylbenzyl-N-benzyl-N, N- dimethyl) ammonium chloride-divinyl benzene] or N-n-octadecyl-tri-butyl ammonium bromide and the image-receiving layer contains copoly [styrene- (N, N-dimethyl-N-benzyl-N-3-maleimidopropyl) ammonium chloride]. In Example E an overlayer contains the above copolymeric mordant. The intermediate layer may also function as an antihalation layer. The material used may contain a stripping layer.