baber/WOPTO huggingface dataset:
Patent GB-1253937-A (GB)
Title: Linkage for a ground ripping tool
Inventor: SPRENKEL ROGER LLOYD
IPC: A01B13/08
Filed: 1970-06-11
Abstract: 1,253,937. Linkage for ground-ripping tool. AMERICAN TRACTOR EQUIPMENT CORP. 11 June, 1970, No. 28420/70. Headings A1B and A1P. A linkage for connecting, to a tractor, an array of similar ground ripping tools which are stationary on their supports while working comprises two sets of links 8, 17, 22, 61, 62, 36, 37 each set forming, essentially, a pivotally-jointed parallelogram. Between the rear ends of the horizontal links 17, 22 (Fig. 3) are connected vertical links 61, 62 and plates 36, 37. The plates 36, 37 carry the beam 41 which supports the ground ripping tools 42. A piston 71 operates between pivots 63 and 72 in order to rotate beam 41 about an axis parallel to the beam so that the angle of attack of ripping tooth 52 is altered to suit ground conditions. The beam may be raised and lowered by means of piston 27 which acts between a plate 26, to which links 17, 22 are joined, and plates 28, 29 which are attached to the towing tractor. The ripping tool can move from side to side during operation since they are mounted on U-shaped brackets 43 which pivot about pin 44 which passes through the beam 41. A resilient pad 56 allows the ripping tool to vibrate rapidly in the soil.
Patent GB-1152252-A (GB)
Title: An Axial-Flow Turbine with Resiliently Mounted Casing
IPC: F01D25/24
Filed: 1966-06-24
Abstract: 1,152,252. Turbines. LICENTIA PATENTVERWALTUNGS G.m.b.H. June 24, 1966 [June 30, 1965], No.28436/66. Heading F1T. An axial-flow gas turbine has a stator casing having an inlet portion 30 with a frusto-conical section flaring outwardly to define a gap 20 with the tips of the turbine rotor blades 17. The casing portion 30 is supported from a fixed annular box-section girder 12 by means of angularly spaced resilient bars or leaf-springs 11 inclined in the opposite direction to the inclination of the gap 20. The mounting is such that radial outward thermal expansion of the portion 30 in the vicinity of the rotor blade tips is accompanied by downstream axial thermal movement of the portion to maintain the gap 20 substantially constant. A resilient bellows 14 permits axial relative movement between annular walls 26, 27. Cooling air passages 23 are defined between the rotor disc 16 and coverplates 24. In a modification, shown dotted, supports 11 are replaced by similar supports 22 attached to an annular girder 21. The construction is applicable also to multi-stage axial-flow turbines.
Patent GB-152035-A (GB)
Title: Improvements relating to steering mechanism for vehicles
IPC: B62D7/00
Filed: 1920-10-07
Abstract: 152,035. Janemian, O. A. Oct. 8, 1919, [Convention date]. Non-reactive steering-mechanism for separatelypivoted wheels; steering-gear.-The steering-shaft a is fitted with a screw a' working in a screwthreaded box c mounted on the dash b. The end of the shaft is hollow to receive a head g' on a rod g, the head lying between two spring buffers l, m. The rod g is connected to a crank arm on a vertical shaft at the lower end of which is a second arm connected to the steering-rod.
Patent GB-630002-A (GB)
Title: Improvements in or relating to wood-turning lathe clamps
IPC: B27C7/04
Filed: 1947-10-24
Abstract: 630,002. Wrenches. GWATKIN, V. Oct. 24, 1947. No. 28480. [Class 61(iii)] [Also in Group XXII] The work-clamping elements of a chuck (see Group XXII) are tightened or slackened with respect to a workpiece by means of a tool 27 consisting of an angled bar 28 the inner end of which is engageable in an aperture in a hub of a plate, a lever 30 pivotally connected to the bar 28, and a link 32 anchored to a rotatable plate 9, co-axial with the firstmentioned plate, at 34 or 341 according as the work-clamping elements are to be tightened or slackened, either operation being performed by pressing the lever 30 towards the bar 28.
Patent GB-870028-A (GB)
Title: Improvements in or relating to multiple push-button electrical switches
IPC: H01H13/74
Filed: 1959-08-20
Abstract: 870,028. Keyboard switches. SCHOELLER & CO. ELEKTROTECHNISCHE FABRIK. Aug. 20, 1959 [Aug. 20, 1958], No. 28484/59. Class 38 (5). A switch has a number of push-button operated slides 7 carrying contact springs 9, the slides being guided in slots in connecting strips 4 having lugs 4a which are passed through apertures in fixed contact plates 1, 2 and then twisted to secure the assembly. A latching bar 10 is pivoted by hooks 10a in recesses in the lower strip 4 and is biased by a spring (not shown) against the faces of the slides 7 so as to hold any operated slide in the depressed position by virtue of a lug 10b entering an aperture 7a in the slide. Depression of any other slide releases one from the operated position. Specification 857,171 is referred to.
Patent GB-784294-A (GB)
Title: Improvements relating to machines for turning non-circular work
IPC: B23B5/26
Filed: 1954-10-04
Abstract: 784,294. Copy-turning. GOETZEWERKE, F. GOETZE AKT.-GES. Oct. 4, 1954 [Oct. 8, 1953], No. 28534/44. Class 83 (3). A machine for turning non-circular work, e.g. piston rings 5, comprises a bed 1 with headstock 2 in which the work is clamped and rotated by driving means contained in end 3. The headstock is fed along the bed, e.g. by a rack. A spindle 8 pivoted to the bed has levers 6, 7 fixed thereto, lever 6 carrying a tool for machining the exterior of the work and lever 7 carrying a bar 11 having a tool for simultaneously machining the interior of the work. An extension 9 of lever 7 is controlled by a copying cam 10 whereby the desired non-circular profile is obtained. Specifications 776,471 and 784,293 are referred to.
Patent GB-269427-A (GB)
Title: Improvements relating to brake mechanism for trailing road vehicles
IPC: B60T7/20
Filed: 1926-11-12
Abstract: 269,427. Hawkins, G. L., and Walker, F. H.S. Nov. 12, 1926. Actuated by relaxation of pull.-In brakes for trailer vehicles, such as caravans, in which compression springs surrounding the draught bar cushion the tractive pull and the braking effort applied when the pull is relaxed, the compression springs h, i are arranged in the space between the guide bearings b, c for the draught bar a and are confined between the bearings and shoulders f on the bar. The bearings b, c are carried in a frame d secured bv screws e or otherwise to the trailer. The end j of the bar a is attached to the tractor and the end k to one end of a two-armed lever l pivoted to a bracket n on the trailer and having its other end connected to the brake mechanism. Alternatively, a cable passing over a pulley device and connected to the brake mechanism has one end secured to the end k of the bar.
Patent GB-670381-A (GB)
Title: An improved pocket for garment
IPC: A41D27/20
Filed: 1949-11-08
Abstract: 670,381. Garment pockets. BAYLY, W. E. P. Nov. 8, 1949, No. 28549/49. Class 141. A garment pocket comprises two superimposed layers 17, 18, Figs. 3 and 5, with the side and bottom edges coinciding, a tape 19 being folded longitudinally and enclosing the bottom and lower side edges of both layers and the upper side edge of the layer 18 to provide the pocket opening 15. A facing strip 21 is sewn around its edges to the inside face of the pocket layer 17 adjacent the opening 15 and to the garment section 11 by stitching 25. A second facing strip 23 is attached along its inner edge at a distance inside the other pocket layer 18 to leave a free edge to this pocket layer and to the garment section 12 by stitching 26. The upper end of the pocket may be held in position by the waistband and reinforcing tack stitches may be provided at the upper and lower ends of the pocket opening 15. In a modification, Fig. 7, a wide facing 35 is secured to the pocket layer 18 by stitches 36, its outer edge being secured to the garment section 12 and to a hanger strip 33, the other edge of the latter and the free edge of the pocket layer 18 being bound by the tape 19. Specification 490,604, [Group X], is referred to.
Patent GB-159010-A (GB)
Title: Improvements in permanent fastenings for building construction
IPC: E04B1/49
Filed: 1919-11-18
Abstract: 159,010. Clarke, C. Nov. 18, 1919. Pins, dowel and like; nails.-Relates to fastenings for bolts to brickwork, to the ground, and to foundations, and for securing together beams and members of wooden framework generally, and consists in a tube A, Fig. 3, for insertion within a hole prepared in the brickwork, adapted to receive the bolt B of which the lower end is split by a central cut G so that when the bolt is struck the two parts B of the split end will be faced laterally by a wedge-shaped anvil H, so as to issue through apertures J in the tube into the interstices E of the brickwork D. Fig. 6 shows the bolt driven home into foundation material or the earth F, the appliance acting as a ground anchoring device. The timbers C, Fig. 1, may be united by inserting a tube into each, and employing a headless, double-ended bolt or rod B, the split ends of which will issue, when the timbers are pressed together, through the holes at the inner ends of the tubes and thus secure them together.
Patent GB-993768-A (GB)
Title: Arrangements for reversing the direction of air flow in a pneumatic tube dispatch system
IPC: B65G51/08
Filed: 1963-07-19
Abstract: 993,768. Pneumatic dispatch systems. STANDARD TELEPHONES & CABLES Ltd. July 19, 1963 [July 23, 1962], No. 28618/63. Heading B8A. In a pneumatic tube dispatch system in which the direction of flow may be reversed for sending carriers in selectively opposite directions along tubes 5, 6, a pair of blowers 7, 8 are arranged for selective operation and one or more valves 13 are arranged to open the intake 9 or 10 of the selected tube and close the other intake. The blowers 7, 8 are arranged in opposition within a sealed casing 1, the outlets being in a common middle chamber 3 and the intakes being, in end chambers 2, 4 through which the tubes 5, 6 pass to the middle chamber 3 and are opened to suction through apertures 11, 12. In operation a flap valve 13 closes one or other of the intakes 9, 10 and opens the selected intake. Movement of the flap valve 13 may be assisted by air from the outlet of the selected blower impinging on a flap 14.
Patent GB-501674-A (GB)
Title: An improved heel for boots and shoes
IPC: A43B13/34
Filed: 1937-10-21
Abstract: 501,674. Heels for boots and shoes. HALDINSTEIN, G. E. Oct. 21, 1937, No. 28686. [Class 17 (ii)] A resilient lift c is inserted in a wooden heel or built into a leather heel intermediate the attaching and tread faces and is secured in position by a screw. Pins e<1> attached to one portion b and guided in holes f in the other portion a may help to retain the heel parts in aligned position.
Patent GB-351841-A (GB)
Title: Improvements in and relating to the process of manufacturing titanium dioxide
IPC: C22B34/12
Filed: 1930-09-25
Abstract: In a process for obtaining titanium dioxide, a finely-ground mixture of rutile and magnesium oxide or carbonate, briquetted if desired, is heated at about 1410-1500 DEG  C. to form magnesium titanate and the resulting cake, after grinding, is treated with concentrated sulphuric acid, diluted with water and, preferably after settling or filtration, cooled to 0 DEG  C. to allow of crystallization of magnesium sulphate, which may subsequently be purified.  The solution is hydrolysed by heating under pressure, say at 160 DEG  C., in an autoclave.  Metatitanic acid separating is washed and calcined, and the solution of sulphuric acid obtained is concentrated for reuse. Reduction of the solution, by electrolysis or otherwise, may precede or follow the separation of magnesium sulphate.  In the roasting process, equimolecular proportions of magnesia and titanium dioxide in the rutile are preferably employed.  A statement of the art relates to a similar process, but wherein magnesium sulphate is not crystallized prior to hydrolysis.  The solution obtained by dissolving the cake in sulphuric acid and water contains magnesium and titanium sulphate in equimolecular ratios, or magnesium titanyl sulphate.
Patent GB-1056836-A (GB)
Title: Polyamides and preparation thereof
IPC: C08G69/20
Filed: 1963-07-22
Abstract: A process for polymerizing a lactam in the presence of the salt of a lactam with a base strong enough to convert the lactam to its iminium salt is characterized by using as cocatalyst a 2-substituted-methylene-3-substituted - oxazolidine - 4:5 - dione of the formula <FORM:1056836/C3/1> 1:1:3:3 - tetramethyl - cyclobutanedione or 2:2:4 - trimethyl - 3 - hydroxy - 3 - pentanoic acid, b -lactone, where R11, R21 and R31 are alkyl, cycloalkyl or aryl radicals of up to 20 carbon atoms and where R11 and R21 may form, together with the double-bonded carbon atom to which they are attached, a cycloalkylene radical. Specified lactams are pyrrolidone, piperidone, 2- and g -caprolactam, enantholactam, caprylolactam, laurolactam and mixtures thereof.  Specified catalysts are the alkali and alkaline earth metals and basic derivatives thereof, many being exemplified.  Many catalysts are specified.
Patent GB-207803-A (GB)
Title: Improvements in and relating to governor mechanism for rotating machines
IPC: G05D13/00
Filed: 1923-11-16
Abstract: 207,803. Metropolitan-Vickers Electrical Co., Ltd., (Assignees of Schmidt, H. F.). Nov. 29, 1922, [Convention date]. Fluid governors. - A fluid-pressure governor for engines or turbines is loaded bv means of two springs, one of which is under substantially constant tension for any particular setting while the other is fixed at one end and loads the pressureresponsive element in accordance with its extension. The governor actuates the main' valve directly without the intervention of a relay, and may be adjusted for different speeds while in service. The governor comprises a casing 19 to which fluid under pressure is supplied by a pipe 17 from a pump, preferably of a type which develops a pressure in proportion to the square of the speed, driven by the turbine &c. Within the casing is a piston 25 enclosing a piston valve 21 provided with ports 35, 36, respectively, by which fluid under pressure may be supplied to the top 39 or bottom 40 of the piston 25. The valve 21 is connected by a spring 57 to an externally-threaded sleeve 63 in engagement with a screwed sleeve 66, seated in the lower end of the piston 25, which can be adjusted by means of worm gear 68<1>, 72, to determine the tension of the spring 57 and thereby the speed at which the governor will operate. The piston valve. 21 is connected by a light spring 76 to a fixed spider 71 while the piston 25 is connected by a link 32 to the throttle-valve. In operation, on an increase of fluid pressure taking place, the piston valve 21 moves upward against the springs 57, 76, opening the port 36 and admitting pressure to the face 40 of the piston 25 and opening the other side 39 to exhaust through the pipe 50. The piston 25 then moves upward until the port 36 is again closed and the increased pressure is balanced by the initial pressure of the spring 57 and the increased pressure of the spring 76. Leakage fluid is returned to the pump by the pipe 55.
Patent GB-298567-A (GB)
Title: Improvements in and relating to induction motors
IPC: H02K17/30
Filed: 1928-10-09
Abstract: 298,567. British Thomson-Houston Co., Ltd., (Assignees of Morrill, W. J.). Oct. 11, 1927, [Convention date]. Alternating - current induction machines.- Relates to electric motors with two squirrel-cage windings and provided with means for automatically varying the reluctance of the flux path in such a way that at starting the outer winding is predominant but as the motor speeds up the work is taken over by the inner winding. For this purpose the outer winding 13 and inner winding 14 are arranged in the same slots and in each slot between the two windings is placed a bar 18 of magnetic material. The outer part of the slot is wider than the bar 18 as shown, but the sides converge inwards to provide a seating for the bar clear of the winding 14. When the motor is at rest or running slowly the bar 18 rests against the seating referred to as shown in Fig. 2, thus forming a magnetic bridge across the slot between the two windings. When the speed increases the bar 18 is thrown outwards as shown in Fig. 4, leaving an air gap in the slot. To prevent the bar from sticking to the sides of the slot between the two windings, spacing pieces 21 of nonmagnetic material projecting into the slot may be arranged between some of the laminations. All or some of the bars 18 may be tubular. The arrangement may be used in a motor starting on a split-phase current which is changed to single-phase as the motor speeds up by a switch operated by a centrifugal governor. Specifications 237,911, 274,878 and 281,706 are referred to.
Patent GB-1155284-A (GB)
Title: Improvements in or relating to Lubricating Devices.
IPC: F16N13/02
Filed: 1966-06-28
Abstract: 1,155,284. Lubricating. SVENSKA KULLAGERFABRIKEN A.B. 28 June, 1966 [28 June, 1965], No. 29014/66. Heading F2A. A lubricating device comprises a plunger 11 reciprocatable along a bore 13 of a nozzle member 10, and a passage to supply lubricant to said bore. Lubricant is supplied under pressure via space 5 to cross-bore 14 in nozzle member 10. Plunger 11 has a rod 5 secured to a core 6 and is retracted by energization of a solenoid 3, uncovering bores 14 and allowing bore 13 to fill with lubricant. De-energization of the solenoid allows spring 4 to extend the plunger ejecting lubricant from the nozzle orifice and closing bores 14. A pipe 17 may be provided instead of seal 8. The solenoid is controlled by a switch operated by a cam and timing mechanism, or in response to temperature of a bearing to be lubricated.
Patent GB-406409-A (GB)
Title: Improvements in or relating to oscillating electric motors
IPC: H02K33/10
Filed: 1932-10-17
Abstract: 406,409. Electric clocks. TENNANT, W. J., 111, Hatton Garden, London.- (Etablissements E. Jaeger; 2, Rue Baudin, Levallois-Perret, Seine, France.) Oct. 17, 1932, No. 29027. [A Specification was laid open to inspection under Sect. 91 of the Acts, Oct. 29, 1932.] [Class 139.] An oscillating electric motor having a balance wheel or pendulum and in which the contact controlling the motor is open in the position of rest is started by an actuating rod operated from the exterior. The motor when at rest does not occupy the position of magnetic symmetry and the actuating rod 21, Fig. 3, either shortcircuits the contacts to give the motor an electric impulse by pressing a spring 22 so that its end 23 touches a pillar 24 to which the contact spring 20 is anchored or imparts a mechanical impulse to the balance wheel through a spring. The invention is particularly applicable to electric clocks in which the actuating rod serves also to set the hands. The motor construction and the contact which form no part of the invention are shown in Figs. 1 and 2. The oscillating member comprises a balance wheel 5 having V-shaped armatures 6, 7 on opposite sides and magnetically connected by a member 8. The arms of each are inclined at 120‹ to each other, one arm of the one lying directly over one arm of the other. The stator poles 2, 3 are displaced in the direction of the pivot pin 4 to co-operate with the arms. The circuit through the coil 1 includes the balance spring 9, the pivot pin 4, a contact pin 17 or a plate 16 carried by the pivot pin, a pivoted contact 18 and the spring 20 controlling the contact. The pivot pin 4 is insulated from the supporting plates 10, 11. The Specification as open to inspection under Sect. 91 comprises also the following matter. Fig. 5 (Cancelled) and Fig. 11 (Cancelled) show a modified spring 25 for the pivoted contact 18, one end being secured to a ring 24 tightly fitted on a pillar 24a. The initial position of the contact lever 18 can be adjusted by slight rotation of the ring 24. In a preferred form applied to a watch Fig. 11 (Cancelled) the entire mechanism is held between a plate 28 and a bridge secured to the plate by pillars which also hold the electromagnet pole-pieces. The pivot pin 4 carries a wheel 36 meshing with a wheel 37 on an arbor 38. This arbor which has a flywheel 39 mounted thereon with slight friction carries a worm 40 actuating the clockwork. A wheel has a set of teeth 45 with which teeth 46 on the stem 21 can engage when the watch is to be set. The pivots of the balance may be formed from synthetic resins, phenol condensation products, cellulose compounds or cellulosic materials impregnated with synthetic resins. This subject-matter does not appear in the Specification as accepted.
Patent GB-712613-A (GB)
Title: Improvements in or relating to internal combustion engines
IPC: F02D15/00
Filed: 1950-11-28
Abstract: 712,613. Fluid-pressure servomotor-control systems. MILLER, R. Nov. 28, 1950, No. 29070/50. Class 135. [Also in Group XXVII] The air pressure on the delivery side of an internal-combustion engine supercharger 55 actuates through a tube 66 the control piston 68 of a servomotor using the engine lubricating oil and having a follow-up lever 75 interconnecting the piston 68 and the servomotor power piston 87 and its control valve 79, the piston 87 through a rack and pinion 91, 92 turning an eccentric 93 whose strap 95 moves a roller 63 circumferentially along the operating cam 64 of the engine intake valve 14 to advance or retard valve closing as the air pressure increases or decreases respectively.
Patent GB-1152592-A (GB)
Title: Improvements in Hand-Applied Machine Tools Driven by an Electric Motor and having an Over-Load Clutch.
IPC: B25B23/14
Filed: 1966-06-29
Abstract: 1,152,592. Screwdrivers. ROBERT BOSCH G.m.b.H. 29 June, 1966 [8 July, 1965], No. 29073/66. Heading B3N. [Also in Division F2] A portable power-driven screwdriver comprises a motor shaft 1 which drives a gear-wheel 3 via a shaft 2, the wheel 3 having dogs 4 which co-operate with dogs 27 carried on a sleeve 24, further dogs 23 on the sleeve co-operating with rollers 21 carried by an output shaft 13, into which a screwdriver blade is fitted. Balls 15 are urged outwardly by a spring-urged peg 16, so that they are moved into an annular groove 5 in the gear-wheel, when the latter is in a particular axial position relative to a shaft 9. In operation, gear-wheel 3, together with shaft 9 is driven by shaft 1. The blade is applied to a screw, and shaft 13 and sleeve 24 are moved to the right until clutch 27, 4, is engaged. When the screw is tightened, dogs 23 ride over rollers 21, sleeve 24 is moved to the right and displaces wheel 3 against a spring 6 until balls 15 enter groove 5, and the clutch is disengaged. When the screwdriver is removed from the screw, wheel 3 is moved back by spring 6 to move the balls inwardly, and the driver is ready for the next cycle.