baber/WOPTO huggingface dataset:
Patent GB-893124-A (GB)
Title: Heat exchanger
IPC: F28D7/10
Filed: 1960-10-11
Abstract: 893,124. Tubular heat exchangers. BROWN FINTUBE CO. Oct. 11, 1960 [Nov. 24, 1959], No. 34787/60. Class 64(1) Air or other gas or a liquid is heated in flowing through an annular space between an outer tube 10 and an inner tube 20 externally finned for most of its length but without such fins at at least one end thereof in a zone 27 adjacent a lateral conduit 12 communicating with the annular space, means such as a burner 30 being provided to discharge heating gases into the interior of the inner tube at a point upstream of the zone 27 so that the unfinned portion of the inner tube is not overheated. The heat exchanging fluids may flow in co-current or as shown, in counter-current. In the heat exchanger shown fin-free zones 26, 27 are provided at both ends of the inner tube to enable the fluid to be heated to flow circumferentially before entering and after leaving the finned section of the annular space. The outer tube is provided with an expansion joint 13 and may be supported by pedestals 14, 15 and 16, supports 15 and 16 being provided with rollers to permit expansion of the outer tube. Specifications 554,813, 670,574 and 739,853 are referred to.
Patent GB-1502232-A (GB)
Title: Substituted 2-phenylimino-1,3-dithiolanes process for their preparation and their use as ectoparasiticidal agents
IPC: C07D339/06
Filed: 1976-08-20
Abstract: 1502232 2 - (Halophenylimino) - 1,3 - dithiolanes BAYER AG 20 Aug 1976 [22 Aug 1975] 34790/76 Heading C2C 2 - (Halophenylimino) - 1,3 - dithiolanes of general formula wherein R<SP>1</SP> is optionally substituted alkyl; R<SP>2</SP> is halogen; and R<SP>3</SP> and R<SP>4</SP>, same or different, are each H or optionally substituted alkyl, are prepared by reacting a compound with a dihalo-alkane where M<SP>+</SP> is a cation, Y is Cl or Br, and optionally converting the reaction product to a salt. Amongst the examples the 2-methyl-4-chloro- and 2-methyl-4-bromo-phenylimino-1,3-dithiolanes are prepared. N - (-chloro- -methylphenyl)dithiocarbamic acid triethylammonium salt is obtained by reacting -chloro-methyl-aniline with CS 2  and triethylamine. Ectoparasiticidal compositions comprise a compound of Formula I as active ingredient in admixture with a solid or liquefied gaseous diluent, or a liquid solvent, other than one of molecular wt. less than 200 except in the presence of a surface active agent.
Patent GB-309117-A (GB)
Title: Improvements in engine starters
IPC: F02N15/06
Filed: 1928-11-26
Abstract: 309,117. Eclipse Machine Co., (Assignees of Whitney, M. P.). April 5, 1928, [Convention date]. Turning-gear.-In an electric starter in which a driving member or pinion 11 is carried by a rotatable and longitudinally shiftable screw member 22, positioning means is provided for retaining the driving member 11 at the forward end of the screw member 22 when the latter is retracted from the engine fly-wheel 12, the positioning means being withdrawn from engagement with the driving member when the screw member is moved towards the fly-wheel. As shown in Fig. 1, the screw member 22 is moved axially on the splined shaft 21 of the starting motor 10 by means of a yoke 33 on a shifter 30 sliding on a guide rod 31, its movement being limited by a pin-and-slot connection 36. A head 44 also sliding on the rod 31 is connected by a link 45 to an operating pedal 14. The parts are normally held in the positions shown by springs 37, 46, and the pinion 11 is held at the forward end of the screw member 22 by a positioning member or yoke 26 pivoted at 41 on the shifter 30 and engaging between fingers 42 of a projection 43 on the head 44. On depressing the pedal 14, the initial movement of the head 44 closes the space 47 between it and the shifter 30 and moves the yoke 26 away from the pinion 11. The head 44, shifter 30, and screw member 22 then move aogether, bringing the pinion into mesh with the flywheel teeth, and an adjustable screw 16 on the pedal engages the push switch 17 of the motor 10. If the engine starts while the pedal is down, the pinion 11 is automatically screwed along the member 22 out of mesh with the flywheel. In a modification, the shifter and the actuating head rock on a pivot instead of sliding on a guide rod such as 31.
Patent GB-1139658-A (GB)
Title: A fluid pressure servomotor control system
IPC: G05D13/00
Filed: 1967-07-28
Abstract: 1,139,658. Controlling variable pitch propellers. UNITED AIRCRAFT CORP. 28 July, 1967 [31 Aug., 1966; 24 Oct., 1966], No. 34912/67. Heading B7V. [Also in Division G3] A control mechanism having a servo motor 16 used to adjust a variable pitch propeller 30 has a control valve 64 movable from a null position by a control force and forming part of first and second fluid chambers 92, 94, the first chamber having a selected fluid pressure therein while the pressure in the second is varied by movement of a member 26 actuated by the servomotor so as to urge the control valve toward the null position, the pressure in the two chambers being gradually equalized at a rate independent of viscosity through a tube 118 and an intermittently opened valve 114. Intermittent opening is effected by rotating the valve 114, through gearing 12, 40 from the engine 14. A governor 62 shifts the valve longitudinally against a manually adjustable spring 66 to control the servomotor 16 and a piston 204 operated by the manual adjustment mechanism 68, 52, 70 alters the relative sizes of the chambers 92, 94 to provide a change in fluid loading counteracting the force of the spring 66. A smooth and retarded response due to the time constant of the tube 116 and the valve 114 is thus ensured. The chamber 92 may be connected to the lubricating oil supply of the engine through a booster pump 82 provided with a pressure regulating valve 86. A further valve 88 permits the propeller to be feathered. A power lever operates a fuel control valve 128 and a sleeve 44 which provides manual control of propeller pitch, a port 56 supplying fluid under pressure to a duct 58 after the movement of the power lever has displaced the valve 64 to the left by compression of the spring 66. A valve 104 normally held in a central position by springs relieves excess pressure in chambers 94 and 48.
Patent GB-1198485-A (GB)
Title: Method and Apparatus for Enabling Bringing a Trawl to a Shoal of Fish found by Echo Sounding
IPC: G01S7/60
Filed: 1967-07-28
Abstract: 1,198,485. Echo sounding. ELECTROACUSTIC G.m.b.H. 28 July, 1967 [29 July, 1966], No. 34924/67. Heading H4D. [Also in Division G1] In a display system for facilitating the training of a trawl net on to a shoal of fish found by echo-sounding, the positions of both the net and the shoal are shown, in relation to a representation of the ship and its direction of travel, on a common display surface. In the Fig. 4 embodiment a range/azimuth display is provided on chart 16 by a stylus 17 mounted to slide along one arm 20 of a carriage 20, 32, 31 rotatable about a pivot 22 at the chart centre. A servo system 52, 53, 54, 57 rotates the carriage in accordance with the azimuthal setting of echosounding transducer 46. On transmission of an acoustic pulse stylus 17 is driven radially outward from the chart centre at a speed proportional to the acoustic velocity component in a horizontal direction. The echo pulse causes the stylus to mark the chart, and at the end of its travel the stylus is returned by spring 37 to the chart centre. The zero of azimuth (i.e. the ship's heading) is in the lengthwise direction of the chart and a representation of the ship is provided at the chart centre. The Fig. 4 embodiment may be modified to provide a range/ declination display by shifting the pivot 22 to the edge of the chart and rotating the carriage 20, 32, 31 in accordance with the declination setting of transducer 46. A rotatable transparent graticule 70 (Fig. 5) arranged over the range/azimuth display 1 is used to indicate the angle between the heading 10 of the ship and a line between the representations 8b, 5b of the net and shoal, respectively. This angle may be indicated by a remote pointer system to the helmsman or used in a servo-link between the graticule and the helm control mechanism so that the angle is brought to zero, whereby the trawl will be drawn on to the shoal. A simplified version of the display system (Fig. 1) comprises shoal and net indicators 5, 8 slidable on pivoted arms 4, 7. The indicators are set manually to represent range and azimuth readings obtained by echo-sounding. This version is modified to provide a range/declination display by moving the pivot point 3 from the centre to the edge of the display area.
Patent GB-509602-A (GB)
Title: Improvements in or relating to gyroscopic compasses
IPC: G01C19/38
Filed: 1937-12-18
Abstract: 509,602. Gyroscopic apparatus. BROWN, S. G. Dec. 18, 1937, Nos. 35072/37 and 2995/38. [Class 97 (iii)] The disturbing effects of acceleration, or turning on a pendulous element controlling the directive properties of a gyroscope are eliminated by the application to the pendulous element of counteracting forces. The Figure shows the application of the invention to a gyroscopic compass of the type described in Specifications 22379/14, 124,529, and 124,533, [all in Class 97 (iii)]. The gyroscope is carried by a pendulous frame 1 which pivots on athwartship bearings 3 in a ring 2 pivoting in turn on fore-and-aft bearings 4 torque motors 6, 7 acting about the bearings 3, 4 respectively, apply the counteracting torques to the frame 1, which itself forms the pendulous factor. The torque motor 6 is excited by a generator 8 driven by a motor 9, having a field winding 13 connected between the mid point 14 of a battery and the positive or negative terminal according to the position of a two-way switch 24. The motor 9 also drives a shaft 19 carrying the planet wheels 21 of a differential gear, of which one element 17 is driven by a repeater motor 16 actuated from the ship's log and the other element 20 is geared to the switch 24. Element 17 is rotated by the motor 16, proportionally to the change in the ship's speed, and the motor 9 rotates accordingly to restore the switch 24 to the central position. The torque motor 7 is similarly excited by a. generator 31, driven by a motor 32, controlled by a two-way switch 34. The latter is geared to a differential gear 35, driven by the motor 32 and an element 35<1> rotated in accordance with the ship's linear speed and angular velocity. The element 35<1> is geared to a disc 30 in frictional contact with a disc 29 driven by a compass repeater motor 26. The motor 26 and disc 29 are mounted on a platform 27, the position of which is adjusted relatively to the disc 30 in accordance with the ship's speed by a threaded extension 28 of the spindle 19. In a modification, the gimbal system 2-5 of the frame 1 is rotated in azimuth by a compass repeater motor. The counteracting torques are then applied about one gimbal axis only since pendulous deflections about the other axis do not cause precession of the gyroscope. The North-steaming error is corrected by attaching to the vertical axis of the gyroscope an astatic pair of magnetic needles, one of which is acted upon by an electromagnetic coil 36 partaking of the ship's azimuthal movement. The coil 36 is excited proportionally to the ship's speed by a potentiometer 37, controlled by a contact 38, carried by the platform 27 and exerts its maximum torque when the ship is steaming North. When; the gravitational factor comprises intercommunicating liquid bottles the counteracting may be applied by deflecting the pendulous gimbal mounting, or by temporary displacement of the liquid bottles.
Patent GB-633220-A (GB)
Title: Improvements in or relating to power-measuring arrangements for high frequency electrical oscillations
IPC: G01J5/20
Filed: 1947-12-31
Abstract: 633,220. Power-meters. GENERAL ELECTRIC CO., Ltd., ROBERTS, D. A. E., and WILLSHAW, W. E. Dec. 31, 1947, No. 35086. [Class 37] [Also in Group XL (c)] Energy flowing in a wave guide 1 is absorbed by thin conducting laminµ 6, 7, extending across the guide, the heat developed raising the temperature of a dielectric medium 6 (e.g. nitrocellulose) so that the variation of the capacity of condenser 5, 6, 7 is a measure of the power ; a termination 4 is a quarter wavelength from the condenser 5, 6, 7. Preferably the laminµ are bismuth or nickel coatings protected by a layer of silica and the wave guide is evacuated and sealed. Inserts 8, 9 of nitrocellulose insulate the condenser plates 6, 7 from the walls of the wave guide. Quarter wavelength slots 10, 11 prevent leakage. The condenser 5, 6, 7 may be measured in a bridge circuit or by measuring the variation in the frequency of an oscillator 14,
Patent GB-351533-A (GB)
IPC: A21C9/04
Abstract: 351,533. Delivering measured quantities of dough &c. CHAMBERS, R. M., Caragh, Aboo Park, Finaghy, and MARTIN, G., 55, South Parade, both in Belfast. March 26, 1930, No. 9619. [Class 87 (ii).] In machines for depositing dough or other plastic substances in measured quantities from a hopper 28 by plungers 30 working in cylinders 29 whose discharge ends are controlled by valves 39, the plungers are caused to dwell during the opening of the valves and preferably also during the closing of the valves. The crosshead 31 is provided with racks 32 which are reciprocated by toothed sectors 34 rocked by a crank 36 through a quadrant 38 and link 37 the connection of the link to the quadrant being adjustable by screw gear 47 in order to vary the stroke of the plungers and the weight of substance discharged. The valve plate 39 is reciprocated by linkage 39a, 66, 65, the crank 65 being rocked by a rod 64 linked to a T-shaped lever 62, 62a, the latter lever having a forked end, one arm of which has a roller 62b engaging a cam 41 on the driving shaft, the other arm having a roller 62c which is adjusted to co-operate with a camended link pivoted on a pin 36b and constrained by a rod 61 swinging about a fixed centre 61a. The pin 36b is carried by a pinion 45 which is intermittently driven sc that the angularity of the link 37 and quadrant 38 for various settings of the block 47 is compensated thus giving the dwell in the motion of the plungers at the required intervals. Specification 207,463, [Class 87 (ii), Moulding plastic &c. substances], is referred to in the Provisional Specification.
Patent GB-1112306-A (GB)
Title: Improvements in or relating to powered hand brake mechanism for motor vehicles
Inventor: PAGE WILBUR MILLS
IPC: B60T13/10
Filed: 1965-08-17
Abstract: 1,112,306. Power-assisted hand brakes. CLAYTON DEWANDRE CO. Ltd. 16 Nov., 1966 [17 Aug., 1965], No. 35184/65. Headings F2E and F2F. [Also in Division G3] In a servo-assisted hand brake mechansm for motor vehicles, the pull-rod 2 located between the dashboard of the vehicle extends at its inner end into a tubular housing 3 of a servo-control valve means in which is provided a piston-type reaction means 13 having limited axial movement within the housing and in operative connection with the pull-rod 2 and co-operating with a tubular inlet and exhaust valve means 17 through which the pull-rod 2 extends and which is displaceable with the reaction means 13 to disconnect a brake motor-connected port 20 from exhaust and connect it to an air pressure supply port 22 leading to a reservoir. The tubular housing 3 is attached to a lever 4 connected by a rod transmission 5 to the brakes, a power cylinder 6 of the diaphragm or piston type also having an operative connection with the rod transmission through a lever 7. In operation, when an effort is applied to the pull-rod 2, the reaction piston 13 is moved outwardly to engage and seat the exhaust valve 17a and then open the inlet valve 23 allowing air pressure through to the power cylinder 6. This air pressure is also applied against the reaction piston 13 opposing the pull-rod effort and creating " feel " in the pull-rod. The hand-operated pull-rod 2 is enclosed by a sleeve 8 which at its inner end is secured to the valve housing 3 and is provided at one side with ratchet teeth 9 co-operating with a pawl 10 mounted beneath the facia panel, the pawl being disengaged from the ratchet teeth by rotating the hand grip 1 and the sleeve 8. An alternative embodiment is disclosed in the Specification suitable for a lever-type hand brake mechanism having a release trigger on the hand brake lever to disengage a pawl carried on a lever of the brake linkage adapted to be actuated by the power cylinder. Alternative servo control valve means are disclosed in the Specification wherein the tubular inlet and outlet valve means and the reaction piston are formed as an integral unit. On release of the hand brake operating mechanism, the reaction piston tubular valve structure are spring- returned to the initial position to release air from the power cylinder 6 and exhaust it to atmosphere via the tubular valve structure 17 and a filter 27 (Fig. 1).
Patent GB-1522476-A (GB)
Title: Joining of plastics elements
IPC: E06B1/60
Filed: 1975-08-08
Abstract: 1522476 Window etc. frame members clips MARLEY TILE CO Ltd 8 Aug 1975 [9 Aug 1974] 35262/74 Headings E1J and E2B [Also in Division F2] Frame members e.g. for building construction are made by joining elongate members of plastics material in side-by-side configuration by means of elongate metal strips of C- or U-shaped cross-section which fit into longitudinal grooves in the members urging them together. The metal strip may be of stainless steel and about 0.25 mm thick. The elongate members may also be held together by double-sided adhesive tape which may aso constitute a moisture seal.
Patent GB-381028-A (GB)
Title: Improvements in or relating to magazine pencils
IPC: B43K24/12
Filed: 1931-12-21
Abstract: 381,028. Pencil-holders &c. HIRTH, A., Haus Abendrot, Heiden, Switzerland. Dec. 21, 1931, No. 35290. Convention date, Dec. 19, 1930. [Class 146 (iii).] In multiple pencil holders in which all the separate lead holders are displaceable separately from position of rest to position of use, they are returned to position of rest by a common compression spring, one end of which spring is housed in the pointed end of the pencil case and the other end has a tubular skirt. The lead holders consist of tubes 3 in which the leads are slidably mounted so that, by rotation of the tubes about internal threaded rods, the leads may be advanced. The rear ends of the holders are riveted to guide-plates 13, and to the forward ends of the guide-plates are fastened leaf springs 14 which on their other ends bear operating knobs 15 passing through holes in the guide-plates and the rough slots 17 in the outer casing 1 of the pencil holder ; the knobs may bear marks to indicate the colour of the corresponding lead. Two guide rivets 18 are also mounted on each guide-plate and slide in the slots 17 on either side of the operating knobs 15. The shanks of the operating knobs have narrow parts which fit the normal width of the slots 17, and wider parts which will only pass through enlarged portions 19, 20, 21 of the slots. With a lead holder in the inactive position the knob rests in the enlarged part 19, but, by pressing the knob against the action of the spring 14, it is positioned so that the holder can be advanced until the knob engages the enlargement 20, when the holder is in the position of use. The holders are returned to the inactive position by the action of a common spring 32 mounted between plates 33, 34 in the spring, which is compressed by whichever of the holders is advanced. The enlargements 21 of slots 17 are provided to enable the holders to be disengaged from the casing, when necessary. In the normal way, the rearward movement of the holders is arrested by a shockabsorbing washer on the bottom of a refill box 24. The box 24 is mounted on the rear cap 22, which is normally held in place by a bayonet slot 29 and serves to cover the enlargements 21, when desirable.
Patent GB-1011034-A (GB)
Title: Improvements in or relating to information code conversion means
Inventor: KNIGHT RICHARD BRYAN DOUGLAS
Filed: 1962-09-17
Abstract: 1,011,034. Electric selective signalling systems. DYNAMCO INSTRUMENTS Ltd. Sept. 10, 1962 [Sept. 17, 1962], No. 35328/62. Heading G4H. To decode a binary-coded decimal digit the 2, 4 and 8 bits are decoded by a diode matrix to mark one of five leads A, B, C, D, E and the 1 bit, together with the marked lead A, B, C, D or E then marks one of ten output terminals.
Patent GB-1116334-A (GB)
Title: Method of making a side wall for a liquid-tight container and side wall and container produced by said method
Inventor: VONK JOHNNIE
Filed: 1965-08-18
Abstract: 1,116,334. Lined containers. METAL CONTAINERS Ltd. 4 Nov., 1966 [18 Aug., 1965], No. 36423/65. Heading B8D. [Also in Divisions B5 and F2] A method of making a lined side wall for a liquid-tight container includes the steps of forming an outer side wall portion 11 of fibrous, air-permeable material, forming an extruded, seamless, liquid-tight, tubular lining 15 of a thermoplastic synthetic material, the crosssectional dimensions of the lining being smaller than the cross-sectional dimensions of the side wall portion, positioning the lining 15 within the side wall portion 11, causing the extremities of the lining to engage the extremities of the side wall or reinforcing rings surrounding said extremities, as shown in Fig. 1, heating the lining to such a temperature that the material thereof becomes adhesive, placing the outer wall portion and lining in a rigid or substantially rigid air-tight or substantially air-tight chamber 16 and applying suction to the chamber, thereby to evacuate the space between the outer side wall portion and the lining by withdrawing air from the space through the air-permeable outer wall portion and thereby to cause the lining to engage the entire inner surface or substantially the entire inner surface of the outer wall portion and to adhere to said surface. As described, the side wall portion 11 is of paperboard or cardboard, and may be formed by winding layers of Kraft paper on top of one another, e.g. by helical or convolute winding. The side wall is reinforced by metal rings 14 and has internal ribs 13 adjacent one or both extremities. The lining 15 may be of polyethylene and is heated before, during, or after evacuation of the space between it and the wall portion 11, e.g. by means of an electric heater inserted within the lining.
Patent GB-877477-A (GB)
Title: Improvements in or relating to the purification of halosilanes
IPC: C01B33/08
Filed: 1959-10-20
Abstract: Halosilanes are purified by contact with a solid complexing agent having a general formula: AaBbOc.XH2O wherein A is Na, K, H, Mg, Ag, Pb, Ca, Sr, Ba, Cd, Zn, Mn, Co, NH4, Ni, Ce, or Cu; B is hexavalents Mo, W, U, Nb, or Ta or pentavalent V; a, b and c are positive whole numbers of such values that the positive valence of (Aa) is equal to the negative valence of (BbOc) and wherein X varies from 0 to 24 and subsequent separation of the halosilane from the formed complex and remaining complexing agent.  Halosilanes, e.g. trichlorosilane or silicon tetrachloride, are contacted with 0.025-30 gms/litre of complexing agent and the mixture distilled to isolate the purified halosilane.  The isolated halosilane may be caused to recycle to the distillation step to afford complete contact with the complexing agent, the purified halosilane being bled off from the recycle line. Alternatively, the mixture may be vigorously shaken and the halosilane recovered by crystallisation or distillation.  The complexing agent may have a m.pt. above 600 DEG C. Specific agents, (NH4)2MoO4, (NH4)6Mo7O24, 4H2O, (NH4)2W4O13,8H2O, (NH4)6W7O24, 6H2O, NH4VO3, BaMoO4, BaWO13,9H2O, Ba2U2O7, COWO4, CaHoO4, CaWO4, Ce2 (MoO4)3, Ce2(WO4)3, PbMoO4, PbWO4, K2MoO4, K2WO4:2H2O, K2W4O13,8H2O, K6W7O24,6H2O, KUO4, Ag2WO4 Na2MoO4, Na2MoO4,2H2O, Na2Mo2O7, Na2 Mo3O10, 7H2O, Na2Mo4O13,6H2O, Na2Mo8O25,4H2O, Na2Mo10O13,12H2O, Na2WO4, Na6W7O24, 16H2O, Na2UO4, Na3VO4,16H2O, Na4V2O7, SrMoO4, SrWO4 and particularly Na2WO4, 2H2O are referred to.