baber/WOPTO huggingface dataset:
Patent GB-673372-A (GB)
Title: Improvements in or relating to hydraulic servo motors and the like
IPC: B64C13/24
Filed: 1949-06-02
Abstract: 673,372. Locking rods. HOBSON, Ltd., H. M., and MOTT, L. F. May 12, 1950 [June 2, 1949], No. 14841/49. Class 80 (iii). [Also in Group XXIX] In a duplicated hydraulic control system for operating aircraft control surfaces and the like in which seizure of either of the servo-control valves 25, 25a causes a collapsable member to collapse and so disable the affected servomotor, interlocking means are provided between the two collapsable members so that on either of them collapsing the other is locked against collapse. As shown in Fig. 1, an input member 86 operated by the pilot actuates the valves 25, 25a through linkages 287, 287a also connected to rods or extensions 112, 112a of the collapsable members. The latter may be constructed as described in Specification 673,369. Between the rods 112, 112a are two parallel locking bolts 111, 111a, each with a rounded end 4 or 4a engaging a correspondingly shaped groove 6, or 6a and a flat end 7 or 7a adapted to engage a square groove 8a or 8. The bolts are normally maintained in the rounded grooves by springs 5, 5a but on displacement of one of the rods, say 112, the corresponding bolt 111 is depressed so that the end 7 engages the groove 8a and prevents the rod 112a from moving and therefore the corresponding collapsable member from collapsing. The bolt 111 is locked in its displaced position by a spring-loaded latch 9 engaging a groove 11. Where the rods 112, 112a are further apart as in Fig. 2, the locking bolts are in two parts 211, 311 and 211a, 311a, the parts 211, 211a with rounded ends being pressed into the grooves 6, 6a by springs 5, 5a which also tend to keep pairs of contacts 13 and 13a separated. The parts 311, 311a with flat ends are prevented from engaging grooves 8, 8a by springs 15, 15a respectively and abut cores 60, 60a of solenoids 61, 61a. On movement of one of the rods, say 112, the part 211 is depressed and the contacts 13 are made so that current from the leads 18 passes to the solenoid 61. The core 60 is depressed against a spring 115 and the spring 15 and the part 311 engages the square groove 8a. The bolt part 211 is locked in its depressed position by a spring- loaded latch 16 and the part 311 is similarly locked by a latch 21 which causes spring contacts 20 to spring apart and open the circuit again. The core 60 then returns to its normal position and causes the contacts 19 to be separated. One of the contacts 19 is carried by the core 60 and the other is carried on a rod 12 of insulating material secured to the part 311 and passing through the core 60. Specifications 627,737 and 673,371, [both in Group XXIX], also are referred to. The Provisional Specification refers also to Specifications 673,370 and 673,374, [both in Group XXIX]. Reference has been directed by the Comptroller to Specification 617,375, [Group XXVIII].
Patent GB-1141635-A (GB)
Title: Method of and apparatus for regulating and maintaining constant the speed of drivingmotors for the distance measuring device in echo sounding equipment
IPC: H02P23/18
Filed: 1966-04-04
Abstract: 1,141,635. Echo sounding. ATLAS-WERKE G.m.b.H. 4 April, 1966 [3 April, 1965], No. 14858/66. Heading H4D. [Also in Division G3] In an echo sounder, a driving motor 1 for the distance measuring unit has its speed varied according to alterations of the velocity of sound in the water. A coil 22 produces a signal whose frequency represents the motor speed, this signal being converted into a square pulse train in trigger unit 24 whose output is applied to frequency divider 25. The frequency signal f i  is compared with a reference frequency signal f s  from oscillator 20 in a comparator 27. At the same time, the signal f i  is converted into a D.C. signal U i  by unit 28. For producing a D.C. reference signal U s , oscillator 20 comprises a sound transmitting path 29 having a fixed length and lying in the same medium in which the echo sounding for distance measurement is performed. A sound generator 30 is connected through pulse stage 32 to multivibrator 33 which is synchronized by pulses from sound receiver 31. A separating stage 36 is connected to a frequency divider 37 for providing the signal f s , the signal U s  being derived through the converter 38. The differential voltage delta U from comparator 19 is used for controlling the motor. A flip-flop 39 receives signals from the frequency dividers 25, 37, and is connected to pulse length-direct current converters 40, 41, associated with comparator 42 whose output is added to that from the comparator 19. The signals f i  and f s  may be compared in a forward and backward counter for controlling the motor 1.
Patent GB-730376-A (GB)
Title: Improvements in processes of effecting colour and contrast masking in monochrome or colour photography, and in apparatus for use therein
IPC: G03F3/06
Filed: 1951-06-22
Abstract: 730,376. Photographic colour and contrast masking. SMITH, F. H., and NICOLL, D. O. June 9, 1952 [June 22, 1951; June 27, 1951], Nos. 14920/51 and 15270/51. Classes 98 (1) and 98 (2). A colour or contrast masking process, available for making a masked record of an opaque subject or a three-dimensional object directly, utilizes a main camera and a camera-projector mounted in fixed spatial relationship, and comprises intercepting fast of the light passing between the subject or object and the image plane of the main camera, directing this light to a sensitive material in the camera-projector, processing the material, replacing it in its initial position in the camera-projector, placing a sensitive material in the main camera, exposing the latter material to light both from the subject or object and, using the principle of reversibility of light, from the processed material in the camera-projector, and processing the material so exposed. Colour filter or coloured light sources as required may be used in the exposures. A half-tone screen may be provided in the main camera. As shown, Fig. 1, light from the subject plane 1 to the image plane 2 of the main camera 10 is diverted by semi-transparent mirror 3 and reflex mirror 7 to the image plane 5 of the camera projector 8, and subsequently light 9 is used for masking exposure. In the apparatus of Fig. 2, exposing light is diverted to and from the camera-projector with the aid of a diffuse reflecting screen 12 in addition to the semi-transparent mirror 3. Specification 693,703 and an article in the Process Engravers Monthly for November, 1950, pages 325, 326, are referred to.
Patent GB-377349-A (GB)
Title: Improvements in pipe joints
IPC: F16L27/113
Filed: 1931-05-21
Abstract: 377,349. Pipe joints. RICHARDSON, S. H., Kenwood, Derby Road, Lenton, Nottingham. May 21, 1931, No. 14954. [Class 99 (i).] In a pipe joint in which packing-rings D are compressed around the pipes and against the ends of a sleeve A by collars or flanges F, the internal diameter of the sleeve, which is a loose fit on the pipes adjacent the packing, is gradually increased up to a maximum in the middle of its length so that the pipes can be connected or adjusted out of alignment. The packing is located in conoidal recesses in the sleeve or in the coupling-members, which may be connected by bolts, by screwing together or by a multiple bayonet-joint. In the form shown in Fig. 4, the packing-rings engage curved faces on the coupling-members F and curved recesses K in the pipe ends.
Patent GB-106049-A (GB)
Title: Improvements in Means for Destroying Air-craft.
Inventor: STEINMETZ JOSEPH ALLISON
IPC: F41G5/08
Filed: 1916-10-21
Abstract: 106,049. Steinmetz, J. A. Oct. 21, 1916. Aerial warfare.-Consists in luring enemy aircraft over illuminated imitation buildings or other works on land or sea and then destroying them by gunfire. As shown, an imitation building A provided with a search-light B is surrounded by guns D. The search-light is arranged to illuminate the building when not used for spotting the enemy aircraft C. The guns are normally directed towards various points of the beam of light, and the projectiles are timed explode at various points E within that field. The search-light and the guns may however also be capable of having their directions changed: and the projectiles may be timed to explode at other points E<1>.
Patent GB-1067773-A (GB)
Title: Improvements in and relating to pneumatic tyres
Inventor: TRAVERS G
IPC: B60C13/00
Filed: 1964-04-10
Abstract: 1,067,773. Pneumatic tyres. COMPAGNIE GENERALE DES ETABLISSEMENTS MICHELIN RAISON SOCIALE " MICHELIN & CIE." April 10, 1964 [April 12, 1963], No. 15036/64. Heading B7C. The tread 2 of a pneumatic tyre is uncoupled from the carcass 6 by the interposition between the tread and the carcass of a band 3 having a rigidity differing from that of the tread and that of the carcass, and is uncoupled from the sidewalls 4 by the provision of circumferential grooves 7 in the radially outermost portions of the sidewalls. Each groove may be open, or closed and filled with rubber or air. The carcass 6 may comprise a single layer of radial cords or a plurality of layers of parallel cord fabric arranged with the cords of adjacent layers lying in intersecting directions.
Patent GB-551230-A (GB)
Title: An improved carrier current communication system
IPC: H04H20/76
Filed: 1941-11-21
Abstract: 551,230. Two-part couplings. RADIO GRAMOPHONE DEVELOPMENT CO., Ltd., and DUFFELL, H. F. Nov. 21, 1941, No. 15040. [Class 38 (i)] [Also in Group XXXIX] In a system for distributing carrier currents modulated with music &c. over a power network or the like, the receivers are provided with a shunt-resistance g and a group of series resistances. By means of a screwed plug k, any one of the series resistances can be selected, the shunt resistance being connected up at the samc time over a metal plate h when any but the lowest resistance is used. Connection with the set is made by means of a plug p inserted in the top of the plug k.
Patent GB-593831-A (GB)
Title: Improvements in or relating to lamps for street and public lighting
IPC: F21S13/10
Filed: 1945-06-14
Abstract: 593,831. Street lamps. EXETER GAS LIGHT & COKE CO., and SANSOM, F. W. June 14, 1945, No. 15110. [Class 75 (iv)] In a street lamp, cooling air is admitted to the lamp at or near the lower edge of one or more of the side panels. A door 8 which closes the base of the lamp and is secured by cooperating members 9, 10 may hold a glass panel 7 of which the corners are cut away as at 11, or slots 12 may be provided in the base frame 3, in the door frame 8, or both. Deflectors may be provided to direct the cooling air on to the side panels.
Patent GB-964607-A (GB)
Title: Improvements in or relating ti a method of and means for investigating and controlling the tension or compression of stock between two or more roll stands in continuous mill trains
IPC: B21B37/16
Filed: 1962-04-18
Abstract: 964,607. Rolling. SCHLOEMANN A.G. April 18, 1962 [April 20, 1961], No. 15127/62. Heading B3M. [Also in Division G4] The rolls of a rolling mill are adjusted to avoid tension or compression in the stock passing between a pair of stands by measuring the speed of the leading end of the stock as it emerges from the first stand and the speed of the trailing end as it is drawn into the second stand and comparing them. Adjustments are made to make both speeds the same. In the form shown the speed of the leading end emerging from stand 1 is measured by gating clock pulses from a source 17 into a counter 15 during the interval between the time the leading end passes a photo-cell 10 and the time it passes a photo-cell 11. The speed of the trailing end being drawn into stand 6 is measured in the same way using the interval between the times at which the photo-cells 10 and 11 are uncovered. The two counts may be compared visually and adjustment made to the speed and/or pressure of the rolls 2 and 3 or rolls 8 and alternatively the comparison and control may be effected automatically. Instead of using photo-cells 10 and 11 the speed of the end emerging from stand 1 may be measured by counting pulses over the interval between the surges of current which accompany the entry of the end of the stock between the rolls 2 and 3 of stand 1 and subsequently between the rolls 7 and 8 of stand 6. The trailing end speed is similarly obtained from the times of sudden drops in current as the billet leaves stand 1 and then stand 6. In a further modification a measuring roller between the stands, pulses being counted during a revolution of the measuring roller.
Patent GB-1223857-A (GB)
Title: Apparatus for use in underground mining operations
Inventor: FLINT GILBERT RAYMOND
IPC: E21F13/06
Filed: 1968-03-29
Abstract: 1,223,857. Mine conveying system. BECORIT RESEARCH Ltd. 16 June, 1969 [29 March, 1968], No. 15217/68. Heading B8E. Material from the end face 13 of a tunnel 12 serving a coal face 11 is caused by cutting machinery or shot firing to fall onto a platform 14 from which it is removed and packed in the space behind the roof supports 10 up to an end plate 24 by a blade 16 of a carriage 17. The canage 17 runs along a beam 18 and is driven by chains 19 from an hydraulic motor 22 which reverses whenever the pressure reaches a predetermined level. The beam may be in sections 18a carried by and advanced with the roof supports 10 while the rigid platform 14 is structurally separate from the supports to which it is connected by means 27 by which it can be advanced after the supports. Alternatively the platform and beam may be a separate unit incorporating other roof supports by means of which the unit can be advanced.
Patent GB-1193889-A (GB)
Title: Dibenzo-Thiadiazoeines and the Manufacture Thereof
IPC: C07D285/38
Filed: 1968-03-29
Abstract: 1,193,889. Pesticidal/pharmaceutical compositions containing thiadiazocine-dioxides. UPJOHN CO. 29 March, 1968 [16 May, 1967], No. 15252/68. Headings A5B and A5E. [Also in Division C2] Herbicidal compositions and pharmaceutical compositions having antidiabetic, anti-allergenic, coccidiostatic, C.N.S. stimulant activity &c. comprise the 6H-dibenzo [c,g] [1,2,5] thiadiazocise-5,5-dioxides (and their trichloroacetic acid salts) represented by the formula:- wherein X, Y and Z represent halogen, trifluoromethyl, alkyl or alkoxy groups, R represents alkylaminoalkyl, 1-pyrrolidinylalkyl, alkyl-substituted 1-pyrrolidinylalkyl, piperidinoalkyl, alkyl-substituted piperidinoalkyl, hexahydro-1 -azepirylalkyl, or alkyl-substituted hexahydro-1-azepirylalkyl, m, n and p are integers having a value from 0 to 3 inclusive, with the proviso that the alkyl portions of the foregoing radicals contain no more than four carbon atoms. The trichloroacetic acid salts of the 11, 12-dihydro derivatives may also be used.
Patent GB-549040-A (GB)
Title: Improvements in lubricating greases
Filed: 1940-10-14
Abstract: 549,040. Lubricating greases. STANDARD OIL DEVELOPMENT CO. Oct. 14, 1940, No. 15256. Convention date, Dec. 5, 1939. [Class 91] A lubricating grease comprises a mixture of 50-90 per cent. by weight of a mineral lubricating oil having a Saybolt viscosity at 210‹F. of at least 60 seconds, 10-20 per cent. of a sodium soap obtained by saponifying with caustic soda a mixture of equal parts of stearic acid and rosin, and 5-20 per cent. of a vegetable wax, e.g. candelilla wax, having a free acid number of less than 20.
Patent GB-954442-A (GB)
Title: Improvements in rotary piston machines
IPC: F01C1/348
Filed: 1961-04-28
Abstract: 954,442. Rotary engines and pumps. R. EICKEMEYER. April 28, 1961, No. 15456/61. Heading F1F. A rotary engine or pump comprises a twopart rotary casing 5, Figs. 1 and 2 having plane internal surfaces 14 against which vanes 7, 8 slidable in slots 9 in a rotor 6 abut. The rotor 6 is mounted on a shaft 11 having an axis eccentric to that of the axis 17 of the casing 5. The vane 7, is formed in two parts 30, 31, Fig. 7b, secured together by pins 32 and provided with cross-bars 15a having plane surfaces 15 which drive on corresponding plane surfaces 16 in grooves in the casing 5. Similarly the vanes 8 are made in two parts screwed together and are provided with similar cross-bars 15a. The rotary casing 5 is mounted in a stationary casing 18 having inlet and outlet branches 19, 20 and fitted with a sleeve 28 provided with slots 28a communicating through ports 13 in the casing 5 with variable volume chambers 1-4. The stationary casing 18 is adjustable with respect to an outer casing 22 by means of a spindle 23 to adjust the eccentricity between the axes of the shaft 11 and the casing 5 to vary engine or pump output. Inclined roller bearings 21, 27 support the casing 5 and shaft 11 respectively. In a modification, a casing 51, Fig. 4, either driving or driven, is mounted on a hollow stationary shaft 11<SP>1</SP> and vanes 71, 8<SP>1</SP>, Fig. 3, slidable in slots 91 in the casing 51 abut against external plane surfaces 14<SP>1</SP> of a ring 61 which is mounted on a piston 121 eccentric to and rotatable with respect to the shaft 11<SP>1</SP>. The shaft 11<SP>1</SP> is provided with supply and discharge passages 191, 201 and a spindle 231 extending through a stuffing box (not shown) and movable by an irreversible worm drive, through an eccentric pivot 251, block 261 and slot 271 in a part 28<SP>1</SP>, secured to the piston 12<SP>1</SP> adjusts the engine or pump output. Two units, one 75, Fig. 16, functioning as a compressor is driven through a shaft 77 by the other 76, functioning as an internal combustion engine supplied with a combustible mixture through a conduit 92 from a combustion chamber 83 to which liquid fuel is supplied through a line 87 and compressed air from the compressor 75 through a conduit 82. The expanded combustion gases leave the engine by a conduit 95 and pass by way of a condenser 96 to atmosphere. Water from the condenser collected in a vessel 99 passes through a high pressure pump 102 to be sprayed as coolant into the combustion chamber where as steam it combines with the combustion gases to drive the engine 76. The vanes 7 and 8 or 71 and 81 are equal in weight and forces produced by them are in balance. It is stated that the machine is free of vibration and operates without noise.
Patent GB-760431-A (GB)
Title: Improvements in or relating to centering device
Inventor: MORRIS ROBERT CLAIR
IPC: B64C13/02
Filed: 1954-05-26
Abstract: 760,431. Aircraft controls. NORTHORP AIRCRAFT, Inc. May 26, 1954, No. 15527/54. Class 4. [Also in Group XXIV] In a mechanism wherein an axially-loaded "centering link " is employed to return to its neutral position a member such as an aircraft control column 4, Fig. 1, the centering link comprises a rod 18 having a widened end portion formed with a heart-shaped aperture 24, Fig. 5, coacting with two rollers 26, 27 on the column 4, so that the rod 18 pivots on one or other of the two rollers and, at or near the neutral position, ensures a positive centering moment about the pivot 5 of the control column. The column 4 actuates control surfaces through a link 7. The axial loading of rod 18 is provided by a device 3 which produces a force dependent on the aircraft speed to induce synthetic " feel " of airloads, said device comprising a diaphragm 13- separating two compartments which are respectively subjected to ram air and atmospheric air, the diaphragm being fixed to a slidable rod 10 pivoted to the rod 18. The distance between the axes of the rollers 26, 27 may be equal to or slightly less than the distance between the axes of the bearing surfaces in the aperture 24, the latter alternative eliminating any sharp bottoming effect. The rollers are mounted between a pair of discs 34, Fig. 4, housed in circular apertures in spaced plates 31 secured to a plane on the control column 4. Two clamping plates 35 of tear-drop shape are provided and in assembly the discs 34 and plates 35 are rotatively adjusted to locate the rollers correctly in the aperture 24, and subsequently the plates 35 and 31 are drilled to receive a locking bolt 39.
Patent GB-902013-A (GB)
Title: Improvements in or relating to joints for conduits
Inventor: SHAW HARRY
IPC: E04D13/068
Filed: 1959-05-06
Abstract: 902,013. Rainwater gutters. PATENT CONSOLIDATION Ltd. April 14, 1960 [May 6, 1959], No. 15527/59. Class 20 (4). [Also in Groups I and XXVIII] A joint for a rain-water trough comprises three individual curved or bent parts 12, 13, 14, the part 14 slidingly engaging within or over the parts 12, 13 to interconnect the latter. As shown, the part 14 having a rim 20 and a bead 21 which engage within channels 17, 18 formed along the longitudinal edges of the parts 12, 13, the end of the latter abutting each other within the part 14. The parts 12, 13 are formed with straight portions 15 which engage over the ends of troughing 23, 24. The parts may be held firmly by adhesive, brazing, soldering or welding and are preferably made of moulded plastic or die castings.
Patent GB-291116-A (GB)
Title: Improvements in electromechanical vibrators
IPC: H04R11/00
Filed: 1928-05-26
Abstract: 291,116. Ateliers J. Carpentier, (Assignees of Nandillon, A. E. G., and Cottet, A. E.). May 28, 1927, [Convention date]. Magnetic instruments; loud-speakers. - An electromagnetic vibrator for receiving or emitting acoustic energy comprises two masses F, M, Fig. 5, connected by an elastic plate E, so that the mass M in vibrating varies the depth of an airgap which is surrounded by the coil Z. The masses may be ribbed for the sake of rigidity. The plate E has thickened extremities E<1>, E', with machined inner surfaces which are fixed by screws or otherwise to the masses F, M. The coil Z is wound on a bobbin Z<1>, Fig. 4, made of cellulose acetate or other insulator and fastened to the fixed pole-piece I by a rivet R of cellulose acetate or the like. The air gap N can be adjusted by means of a set-screw G, the polepiece I being separated from the flange J by a saw-cut T. The masses F, M may form a permanent magnet or, as shown in Fig. 8, there may be two parallel air gaps N, N', the coil or coils being mounted in recesses H so that the magnetic circuit is restricted to the pole-pieces I, I<1>. The coil may carry d.c. and a.c. components of current, or there may be a separate winding for each component. The movements of the jaw M may be damped by means of a container A, Fig. 5, filled with metal filings or other granular material and having a rigid plate for its upper face and a diaphragm carrying an adjustably positioned loading-mass for its lower face. The vibrator may be attached by a stud B to a fixed support or it may be connected rigidly or by elastic coupling to another vibrator, a diaphragm (Fig. 9, not shown), or a sounding board a, Fig. 10. The vibrator may be used for transferring energy from an electric circuit to a liquid, gaseous or solid medium or vice versa. It may be tuned, or may be so highly damped as to transmit speech and music. The masses and elastic member may be formed of a single piece of metal if desired. An oscillographic record may be obtained by means of a stylus attached to the moving mass.