baber/WOPTO huggingface dataset:
Patent GB-212842-A (GB)
Title: Improved electro-mechanical apparatus for working and controlling points for railways and the like
IPC: B61L5/06
Filed: 1923-09-27
Abstract: 212,842. Monard, A. Sept. 27, 1923. Addition to 180,992. Electric operation. - The. stem 44 of the armature 48, carrying the contacts 45, 46 of the parent Specification, is operated by the second of two pivoted tappets 75, 77, carried by a cam 74 and engaging shoulders 80, 81 on the cam. The coil 50 is thus energized by the working current and retains the armature without requiring an initial holding-on circuit. Should the points be trailedthrough so as to reverse the points-commutator, reversal of the operating-handle will not complete the motor circuit.
Patent GB-407882-A (GB)
Title: Improvements in or relating to ammunition cartridge cases
IPC: F42B5/26
Filed: 1933-09-01
Abstract: 407,882. Ammunition cartridge cases. DHOME, A., and DEFFRENNE, P., 12<bis>, Place de Laborde, Paris. Sept. 1, 1933, Nos. 24349 and 24350. Convention dates, Oct. 8, 1932 and Dec. 16, 1932. [Class 9 (i).] The rear end of a metal cartridge case or a rear metal piece 2 inserted in a cardboard case 1<1> is made spherical or orgival and of a thickness gradually increasing towards the base so that this rear end or piece can of itself resist completely the force of the gases of the powder. This rear end or piece 2 ends in a strong neck 3 for the reception of the percussion cap, and is surrounded by a base member 4 formed with a flange 6 fitting the neck 3 and with the usual rim 5. The front end of this base member 4 fits the case around the front part of the rear end or piece 2 acting as a reinforcement there.
Patent GB-825225-A (GB)
Title: Improvements in or relating to the production of aromatic aldehydes
Filed: 1956-08-09
Abstract: In a process for making aromatic aldehydes from aromatic hydrocarbons and carbon monoxide using boron trifluoride and hydrofluoric acid as catalysts and wherein the reaction mixture comprising an aromatic aldehyde-boron trifluoride-hydrofluoric acid complex, excess hydrofluoric acid and aromatic hydrocarbon and discharged from the reaction zone is treated with barium or strontium fluoride to combine with the boron trifluoride to form a metal fluoborate and at the same time to liberate hydrofluoric acid and the aldehyde from the complex and the free hydrofluoric acid is removed by evaporation, the metal fluoborate is separated from the aldehyde by treatment with a liquid in which the fluoborate is soluble and in which the aldehyde is insoluble, such as water.  The fluoborate solution is separated by sedimentation, the solvent removed and the fluoborate heated to recover boron trifluoride and barium or strontium fluoride.  The aldehyde is recovered from the organic layer by distillation.  The conversion of toluene to toluic aldehyde is described.ALSO:In a process for making aromatic aldehydes from aromatic hydrocarbons and carbon monoxide using boron trifluoride and hydrofluoric acid as catalysts and wherein the reaction mixture comprising an aromatic aldehyde-boron trifluoride - hydrofluoric acid complex, excess hydrofluoric acid and aromatic hydrocarbon and discharged from the reaction zone is treated with barium or strontium fluoride to combine with the boron trifluoride to form a metal fluoborate and at the same time to liberate hydrofluoric acid and the aldehyde from the complex and the free hydrofluoric acid is removed by evaporation, the metal fluoborate is separated from the aldehyde by treatment with a liquid in which the fluoborate is soluble and in which the aldehyde is insoluble, such as water.  The fluoborate solution is separated by sedimentation, the solvent removed and the fluoborate heated to recover boron trifluoride and barium or strontium fluoride.  The aldehyde is recovered from the organic layer by distillation.  The conversion of toluene to toluic aldehyde is described.
Patent GB-238733-A (GB)
Title: Improvements relating to overhead trolley pulleys for trams and like vehicles
IPC: B60L5/08
Filed: 1924-10-14
Abstract: 238,733. Kershaw, C., and Russell, R. Oct. 14, 1924. Channels and reservoirs in trolly wheels.-A trolly wheel 1 formed of a single casting is provided with an internal annular chamber 4 for lubricant closed by a straight-walled bush 3 provided with a number of radial holes 5 arranged along its length for the passage of lubricant to the spindle. The bush 3 may be either a loose or a driving fit within the bore of the wheel. Reference has been directed by the Comptroller to Specifications 28748/03, 3773/05, and 2704/07.
Patent GB-965464-A (GB)
Title: Apparatus for converting rotary to recipcrocating motion or vice versa
IPC: F01B3/00
Filed: 1961-07-06
Abstract: 965,464. Swash plate pumps; I.C. engine drive gear. F. E. SWAIN. Oct. 4, 1962 [July 6, 1961], No. 24418/61. Headings F1A and FIB. [Also in Division F2] An I.C. engine as shown, Figs. 1 and 2, has four cylinders 2 in a cylindrical housing 1, with two double ended pistons 3 in each cylinder. Each piston is connected to one of a pair of swash plates 6, rotatably mounted on the inclined arms 5 of a central Z-shaped crankshaft 4, by means of a ball and cup joint, the centre of curvature of the co-operating part spherical surfaces being offset laterally by a distance "X" (Fig. 2) from the longitudinal centre line of the associated piston. The offset is adjustable by means of support stems 12 for the ball members 9 of the joints, which stems are screwed into the pistons. The offset accommodates differential expansion of the housing 1 and the swash plates 6. A swash plate pump, Fig. 6, has a single hemispherical swash plate 20 integral with a drive shaft 21, and ball members 25 having part-spherical surfaces greater than hemispheres and carried on pistons 26 engage hemispherical cups 24 let into the diametric face of the swash plate 20. The centre of curvature of each ball member 25 is laterally offset by a distance "X" from the longitudinal centre line of its piston 26. The cylinder block 23 is freely rotatable in the housing 28 which has an end plate 30, with a non-rotatable insert 31, provided with inlet and outlet ports 34. The shaft 21 may rotate about its own axis at a preset inclination to the longitudinal axis of the housing 28, or may describe a conical motion limited by the sides of the aperture 35 without rotating about its own axis, the cylinder block 23 remaining stationary in this case. It is stated that the invention may be applied to engines having curved pistons and cylinders.
Patent GB-272369-A (GB)
Title: Improvements in liquid dispensing appliances
IPC: B67D7/60
Filed: 1926-10-02
Abstract: 272,369. Marks, E. C. R., (Marvel Equipment Co.). Oct. 2, 1926. Suction pipes.-A telescopic inlet for a pump, such as a handoperated dispensing pump adapted to be mounted on an oil container, comprises a lower outer tube 11 sliding on a packing ring 12 attached to the lower end of the inner tube 10 leading to the pump. The inturned corners 19 limit the relative movement of the tubes by engaging a shoulder 17 on the nut 14 which holds the packing.
Patent GB-1076532-A (GB)
Title: Heat exchange apparatus
IPC: F28F3/08
Filed: 1965-06-10
Abstract: A corrugated plate device for effecting liquid aeration by the method described in Specification 853,604 comprises a plurality of plates located in parallel planes and spaced from one another, the space between adjacent plates being sealed by a packing arranged around the margins of the plates, the plates being of elongate shape and being formed with undulations extending across their whole width at right angles to their longitudinal axes.
Patent GB-1518851-A (GB)
Title: Electronic fault monitoring apparatus
IPC: G01R31/00
Filed: 1976-05-27
Abstract: 1518851 Testing electrical apparatus DEFENCE SECRETARY OF STATE FOR 27 May 1976 [6 June 1975] 24507/75 Heading G1U In a fault monitoring apparatus for a device which requires setting up or alignment, signals indicating that respective stages of setting up or alignment have been completed are entered into a first set of bi-stable latches, and signals representing faults are entered into a second set of latches, and the outputs of the second set are connected to cause locking of the states of both sets of latches. As shown fault signals Fl, F2, F3 (the last derived from M, MO via exclusive -OR gate 1) provide input signals to fault latches FL1-FL3. Input F2 is paralleled by a 'stage' signal S1, the diodes 6, 9 forming an AND gate. The 'stage' signals Sl, S2 are produced when respective setting up stages in the apparatus being monitored e.g. an aircraft inertial navigation system are completed. Thus F2 will only enter a fault in FL2 if Sl is present. S1, S2 form the inputs to 'stage' latches SL1, SL2. Each output from the fault latches is connected via a diode matrix to the locking inputs of all the other latches, thus at the occurrence of a fault, the states of all the latches are 'frozen' and indicated on light-emitting diodes 25-29. Thus, any further fault signals caused by the automatic switching off of the device being monitored, will not affect the 'fault' display. The apparatus is designed to fit within the forward projecting handles of a standard size rack-mounting equipment Fig. 3 (not shown), with locating blocks fitting inside the handles, and side plates fixing the apparatus in position.
Patent GB-443296-A (GB)
Title: Improvements in or relating to air tubes for pneumatic tyres
IPC: B60C5/20
Filed: 1934-08-25
Abstract: 443,296. Pneumatic tyres. McLEROTH, T. B., 8, Crescent West, Hadley Wood, Middlesex. Aug. 25, 1934, No. 24546. [Class 144 (ii)] Air-tubes comprising a circumferential series of cells communicating with a continuous inflation-tube, of the kind described in Specifications 189;821, 199,769, and 221,537, [all in Class 144 (ii)], are produced by the following steps whereby the continuous tube, and its valve-less communications to the cells, are arranged inside the cellular portion. A series of valve-less tubes d are secured to a raw rubber strip a by means of studs e<1> as described in Specification 199,769, and on the opposite face a fabric strip c is secured, as shown in Fig. 2. The strip a is then attached, by its bevelled edges b, to the outside of a raw rubber tube f which is assembled over a hollow cylindrical mandrel g, Fig. 5. The built-up tube is then progressively turned inside-out by drawing through the interior of the mandrel g during which operation diaphragms h of partially vulcanized rubber are secured to the wall of the tube f between the members d. Fig. 6 shows, in longitudinal section, the structure of the finished tube.
Patent GB-1063966-A (GB)
Title: Brush construction
IPC: A46B13/00
Filed: 1964-06-12
Abstract: 1,063,966. Rotary brushes. OSBORN MANUFACTURING CO. June 12, 1964 [June 20, 1963; April 28, 1964], No. 24557/64. Heading A4K. In a brush section, formed by bending up cylindrical walls 27, 28, about the assembled bristles 32 and retaining ring 33, to produce a channel-section stock, the grip on the bights of the bristles is either tightened, before bending, by press-fitting a solid retaining ring (44) on the walls (41, 42) on, during bending, by deforming a sheet metal ring 33 so that it shrinks circumferentially. The facially connected flanges 24, 25 prevent the stock from contracting under radial pressure. Socketed drive pins (35) allow the brush sections to be built up into cylindrical brushes. The bristles may be of horse hair, tampico fibre, crimped wire, nylon or plastic coated wire or glass fibres.
Patent GB-675875-A (GB)
Title: Improvements in or relating to firearms
IPC: F41A3/06
Filed: 1949-09-24
Abstract: 675,875. Smallarms. BIRMINGHAM SMALL ARMS CO., Ltd., PERRY, C. A., and WACKROW, R. D. Sept. 25, 1950. [Sept. 24, 1949] No. 24582/49. Class 119. Relates to firearms having swinging breechblocks, particularly those of the Martini type, wherein the upper surface of the breech-block is grooved for facilitating loading and for guiding the ejected cases. According to the invention, the groove 7 extends from a central position at the front end of the breech-block 3 to a point near an outer side at or near the pivoted end. The groove may be of greatest depth near the front end of the block and gradually becomes shallower until it merges into the upper surface at the rear. By such an arrangement the cartridge cases are ejected to one side. The breech body 1 may be cut away at 11 to facilitate loading.
Patent GB-462133-A (GB)
Title: Improvements relating to turbo-mechanical transmission gear
IPC: F16H47/06
Filed: 1935-09-03
Abstract: 462,133. Power transmission. FOTTINGER, H. Sept. 3, 1935, No. 24588. Convention date, May 2. [Class 69 (ii)] Power transmission mechanism comprises a hydraulic torque - converter and /or coupling, the pump and turbine of which are connected by mechanical speed-increasing and speed-reducing gearing to main driving and driven shafts, which are arranged coaxially and may be connected by a hydraulic or mechanical coupling. Means for obtaining reversal of the driven shaft may also be provided. In the form shown in Fig. 1, the main driving and driven shafts 1, 2, are connected to the pump and turbine shafts of the turbo-gear 9 through speed-increasing gearing 3, 4, and speedreducing gearing 7, 8 respectively. A mechanical coupling 10 consists of toothed members 11, 12, the latter being slidable. In modifications, the coupling 10 is replaced by a hydraulic coupling, or by a toothed member movable to engage the teeth of both wheels 3, 8. In another form, both gearings have intermediate wheels, and the intermediate wheel 71, Fig. 6, of the speed-reducing gearing constitutes part of a reversing gear, being carried together with a meshing wheel 18 on a swingable frame 17. In a further form, a gear wheel 20, Fig. 7, on the pump shaft 5 engages a wheel 21 ; the latter may be connected to a shaft 22 by a clutch 24, so that a pinion 23 then drives the shaft 2 in the reverse direction, the ratios of the reversing gearing being such that the reversing torque overcomes the torque of the turbo-gear 9. The wheel 21 may be replaced by a wheel on the shaft 1. Where the turbo-gear is a torque converter, it is preferred to render its guide-device inoperative when reverse drive is in operation, and a common control device governs the actuation. As shown, a control cock 25 is provided. In one position, it allows pressure to apply a brake member 30 to a disc 32 carrying the guide member, in another it engages the coupling 10, and in another it engages the clutch 24.
Patent GB-1273947-A (GB)
Title: Differential pressure nuclear radiation flux detector
IPC: G01T1/16
Filed: 1971-04-19
Abstract: 1,273,947. Detecting neutrons. UNITED STATES ATOMIC ENERGY COMMISSION. 19 April, 1971 [22 April, 1970], No. 24623/71. Heading G6P. In a neutron flux detector, employing the reaction chambers, separately filled with 3He and 4He are placed in the flux. The cross-section of 4He is lower than that of 3He and the resultant pressure differential is a measure of the flux. The chambers 23, 25 are formed in an intermingled array in the aluminium housing so as to be evenly exposed to the radiation. The set of chambers 23 are interconnected by channels 35 and chambers 25 by channels 47. The chamber sets are coupled through passages 37 and 39 with an external differential pressure detector.
Patent GB-173268-A (GB)
Title: An improved electrolyte for use in the electro-deposition of metals and metallic alloys
IPC: C25D3/02
Filed: 1920-08-25
Abstract: 173,268. Marino, Q. Aug. 25, 1920. Nickel, cobalt, and their alloys, depositing.-In preparing an electrolyte for depositing nickel or cobalt the following solutions are made : (a) about 8 oz. of nitrate, sulphate, acetate, or other soluble salt of nickel or cobalt in 1 quart of water, (b) about 4 oz. of borotartrate of sodium or potassium in 1 quart of water, (c) about 1 oz. of formate of sodium, potassium, or ammonium in 1 pint of water. The solutions are mixed and the resulting precipitate is re-dissolved by addition of about 8 oz. of potassium cyanide, which should not be in excess. When an alloy with silver or tin is required a solution containing, for example, about 8 oz. of silver nitrate or tin protochloride or other salts of silver or tin to 1 quart of water is added before dissolving the precipitate. A voltage of from one to five volts, and a current density of from five to ten amperes per square foot may be employed.
Patent GB-353726-A (GB)
Title: Improvements relating to grabs
IPC: B66C3/12
Filed: 1930-08-19
Abstract: 353,726. Grab-buckets. VEREINIGTE STAHLWERKE AKT.-GES., 67, Breitestrasse, D³sseldorf, Germany. Aug. 19, 1930, No. 24840. Convention date, March 20. [Class 78 (iv).] A double rope grab - bucket of the type in which the scoops are pivoted to bars sliding in guides attached to the grab body, has the scoops 1 pivoted to bars 3 sliding in guide channels 4 formed in the grab body.
Patent GB-302713-A (GB)
Title: Improvements in or connected with drives for ropes
IPC: F16H7/04
Filed: 1927-09-21
Abstract: 302,713. Coldman, J. W. Sept. 21, 1927. Adhesion, promoting; guiding and supporting arrangements.-In belt and rope drives for hoists, lifts, cranes, cotton mills, &c. employing V- grooved or other pulleys, one or more spring or weight controlled rollers press the belt &c. upon the pulley. Rollers 7, 7a, Figs. 1 and 3, have grooved edges pressing the rope 11 into the groove in the pulley 2 and are carried on arms 6, 6a suspended from an arm 3 encircling the shaft 1 and secured to the framing by a link 4. A tension spring 8 is adjustably connected by screwed rods 9 and nuts 10 to the arms 6, 6<a>. The rollers may be carried on weighted bell-crank levers pivoted on the arm 3. When several ropes are employed in one drive, separate rollers may be employed for each rope or a single wide roller may engage all the ropes.
Patent GB-186063-A (GB)
Title: Improvements in or relating to take-up mechanism for knitting machines
IPC: D04B27/34
Filed: 1922-09-14
Abstract: 186,063. Wildman Manufacturing Co., (Assignees of Howie, K.). Sept. 17, 1921, [Convention date]. Fabric take-up. - Take-up mechanism particularly adapted for use with tubular fabric having welts at intervals is controlled by a fullthrow clutch of the kind described in Specification 180,321 and comprises a winding-roll 4 driven by a worm-wheel 5 meshing with a worm 6 loose on a shaft 7 which is rotated by a gear 8 driven by a stationary circular rack 9. The driven parts are supported in brackets 13 depending from a rotary ring 14. The clutch sleeve 15 is splined to the shaft 7 and has a clutch tooth 16 which may engage a tooth 18 on a sleeve carrying the worm 6. The sleeve 15 has an upper groove 20 and a cam flange 19 which co-operate with spring pins 21, 22 carried by a block 23 forming part of a lever 24 pivoted at 25 to a bracket 13. The lever 24 has an horizontal arm 26 connected bv a link 27 to an arm 28 fixed on a shaft 29 on which are fixed other arms 31 carrying the journals of a gravity roll 1. The free ends of the arms 31 are connected by a rod 32 on which weights may be hung. The fabric passes under the roll, is guided by rolls 2, 3 mounted in fixed bearings, and is wound up on the roll 4. The rolls 1, 2, 3 may be ball-bearing. As the fabric is knit off, the frame carrying the roll 1 gradually moves down to the lower limit of movement indicated at 7 and causes the pin 21 to withdraw from the groove 20 whereupon the tooth 16 drops into engagement with and begins to drive the tooth 18. If now the loop of fabric, in which the roll 1 hangs, shortens because of a difference between the rate of production of knitting and the winding capacity of the roll 4, the frame will rise to the position indicated at x, whereupon the pin 22 will engage a cut-away part 19x of the flange 19 and lift the sleeve 15 until the teeth 16, 18 are no longer in engagement.
Patent GB-1350099-A (GB)
Title: Method and apparatus for stitchlessly seaming together leather and/or synthetic leather workpieces
IPC: C14B1/00
Filed: 1971-04-19
Abstract: 1350099 Seaming non-metallic sheet material BIEDERMANN GmbH Gebr 19 April 1971 [21 March 1970] 24904/71 Heading B5K Leather and/or synthetic leather workpieces 17, 32 are placed in overlapping relationship with an interposed thermoplastic layer therebetween and are joined by a heating member 4 movable into and out of contact with the workpieces 17, 32 and at least one presser foot 10 for retaining an edge of the workpiece 17 beneath the member 4, the foot 10 having an edge portion 13 forming a stop for the workpiece 32 and being movable into and out of contact with the workpieces, the foot 10 being so located that when the second workpiece 32 is in abutment therewith the two workpieces 17, 32 overlap. The width of the thermoplastic adhesive layer, i.e. the overlap area between the workpieces, is less than the width of the underside 5 of the member 4. In one embodiment, Fig. 1, the member 4 is releasably mounted in a holder 3 and, in its inoperative position, is spaced apart from a worktable 1 by a distance 6. On each side of the member 4, presser feet 9, 10, having workpiece engaging surfaces 13, 14, are retained in holders 7, 8 by dovetail guides 11 and are separately movable to contact the workpieces. If necessary the feet 9, 10 can be forced apart, against spring pressure, by the engagement of the member 4 with edges 15, 16 thereon. In operation, the foot 9 is lowered on to the table 1 and one workpiece 17 is positioned to abut its surface 13. The foot 10 is lowered so that its surface 14 engages the surface of the workpiece 17 and then the foot 9 is raised. A second workpiece 32 is positioned to abut the edge 13 of the foot 10 so that the workpieces 17, 32 overlap with a thermoplastic adhesive layer interposed therebetween, this layer being provided on either or both of the workpieces 17, 32. The member 4 is lowered and the foot 10 is raised, the underside 5 of the member 4 being wider than the overlapping areas. The member 4 is activated, e.g. by connection to a high frequency generator, to heat the adhesive and the workpieces are welded together. In a second embodiment, Fig. 2, the feet 18, 19 are displaceably mounted in a block and are also separately movable towards and away from the workpieces. The member 4 is held in a holder 20 radiused at 21, 22 to act on radiused surfaces 23, 24 of the feet 18, 19. Rollers 33 may be rotatably mounted on the undersurface 27 of the feet 18, 19. In a further embodiment, Fig. 3, feet 25, 26 are mounted in the holder 20 and are displaceable parallel to one another against springs 28, 29. The underside of the foot 25 is closer to the worktable 1 than that of the foot 26. After the holder 20 has been lowered towards the table 1, the foot 25 first retains under the force of the spring 28 a workpiece located therebelow and a second workpiece is retained by further lowering the holder 20 and the foot 26 acting under the force of the spring 29.