baber/WOPTO huggingface dataset:
Patent GB-698527-A (GB)
Title: Improvements relating to heteropolar polyphase inductor alternators
IPC: H02K19/24
Filed: 1951-08-13
Abstract: 698,527. Inductor alternators. SMALL ELECTRIC MOTORS, Ltd., and STRINGER, H. July 31,1952 [Aug. 13,1951],No. 19018/51. Class 35. The stator of a polyphase inductor alternator has pairs of teeth 1, 2 spaced 180 degrees while the pairs are spaced by 360(1+<SP>1</SP>/n) degrees, where n is equal to or is a submultiple of the number of phases of the output winding. In the form shown for a rotor having eight slots D and the stator having 6 pairs of teeth, the narrow slots A between the teeth 1, 2 of a pair carry the A.C. windings, while the wider slots B between pairs carry the exciting windings. The teeth 1, 2 are 180 electrical degrees apart and the pairs are pitched 360 plus 120 electrical degrees apart for a three-phase machine. The phase sequence of the output is in the opposite direction to the rotor direction. A modification is described in which the rotor has ten teeth while the stator has six pairs as before. In this case, the pairs are pitched 360 plus 240 electrical degrees apart and the phase sequence of the A.C. output is the same as the direction of rotation of the rotor. The exciting winding is wound in alternate directions to avoid A.C. induction in the conventional manner.
Patent GB-530989-A (GB)
Title: Improved receptacles made of paper
IPC: B65D5/24
Filed: 1939-06-29
Abstract: 530,989. Paper receptacles. SIMMONS, J. R., and MEDWAY PAPER SACKS, Ltd. June 29, 1939, No. 19021. [Class 94 (ii)] A seamless receptacle is formed by folding a sheet of paper, preferably waterproofed, and one or more layers thick, to form the bottom and walls A, B. C. D, and folding the double thickness triangular flaps F formed between each pair of walls on to the adjacent wall and on to the upper part of the next wall beyond at F<SP>1</SP>, where it is secured by stapling &c. This makes the mouth five layers thick. Specification 530,988, [Group 1], is referred to.
Patent GB-1366452-A (GB)
Title: Process for the production of acetoxydichloropropane
IPC: B01J27/06
Filed: 1972-04-25
Abstract: 1366452 Chlorination catalysts BAYER AG 25 April 1972 [30 April 1971] 19132/72 Heading B1E [Also in Division C2] Chlorination catalysts are prepared by impregnating alumina or active carbon with aqueous or aqueous/methanolic solutions of CoCl 2 , CuCl 2 , MuCl 2 , FeCl 3 , NiCl 2  or PdCl 2 , followed by drying.
Patent GB-1210618-A (GB)
Title: Electromagnetic contactor
IPC: H01H50/54
Filed: 1969-04-15
Abstract: 1,210,618. Electromagnetic contactors. SQUARE D CO. 15 April, 1969 [6 May, 1968], No. 19209/69. Heading H1N. A heavy current electromagnetic switch is so designed that it may be assembled in either of two configurations providing respectively for normally closed and normally open operation and may readily be changed from one configuration to the other. It comprises a base 10; a magnetic frame 12 mountable in two positions (Figs. 2, 3 respectively) upon the base 10; a right angled contact carrying lever 17 pivoted to the frame; and an armature plate 16 which can be attached to either arm of lever 17 depending upon the position of frame 12. The base 10 and lever 17 are of moulded glassreinforced polyester. Pivoted to the lever 17 is a movable contact 36 urged by a pressure spring 32 towards a fixed contact 41 on the base. Contact 41 is connected through an arc blowout coil 44 to a terminal 42a. The coil has a core and cheeks 49; an arc-chute 54 is mounted between the cheeks and detachably retained by an extension 51a of an arc runner attached to the fixed contact 41. The lever 17 is pivoted on a pin 23 which is withdrawable, being retained by a spring clip (Figs. 7, 8, not shown). Besides repositioning frame 12 and armature 16 the coil 14, its core 15 and a biasing spring 29 must be replaced by similar members 65, 66, 64 respectively suited to the changed operating conditions; spring 64 is longer and stronger than spring 29.
Patent GB-147201-A (GB)
Title: Improvements in means for stopping the delivery of roving in spinning machines
IPC: D01H13/18
Filed: 1920-07-07
Abstract: 147,201. Pearson, G. W., (Assignee of Arragg, G. M.). Jan. 28, 1915, [Convention date]. Delivery, stopping; stop - motions; rollers and roller heads.-In a spinning - machine, the upper back-roller F, Figs. 1 and 4, is lifted, when an end breaks, by a plate 33 and the end held against the roller by the plate. The plate is held against the action of a spring 35 by a flexible member 44, which passes through a slot 41, Fig. 7, in a plate 40 and is secured to a spindle 9, which can be turned to adjust the length of the member in accordance with the position of the roller F. The slot 41 is formed with a notch 42 at one end in which the member 44 normally rests. When an end breaks, a feeler 60 controlled by the thread rocks on its pivot 61 and comes into the path of an oscillating member 51, being moved thereby and pushing the member 44 out of the shoulder 42 of the slot 41. The tension in the member 44 is released and the spring 35 acts to raise the plate 33 and the roller F. The member 44 passes through a spool 46 moving in the slot 41. The device is reset by a handle 73 pulling forward a sliding carriage 71, the inclined edge 72 of which engages the spool 46 and pushes it back into the shoulder 42. A metal plate 74 at the back of the carriage 71 raises the feeler 60. The carriage is pushed back after the thread is pieced. The upper roller F is carried in a hanger 20, Fig. 4, sliding through a bracket 21 and controlled by an adjustable spring 24. The upper carrier rolls H are mounted loosely and independently on a rod or shaft.
Patent GB-636413-A (GB)
Title: Improvements in or relating to radiators for motor vehicles, stationary engines, andthe like
IPC: F28F9/02
Filed: 1948-04-13
Abstract: 636,413. Tubular heat-exchangers. SERCK RADIATORS, Ltd., and BREAKSPEAR, F. April 13, 1948, No. 19398/47. [Class 64(iii)] In a radiator of the kind in which parallel thin-walled tubes b are attached at their ends to tube plates c carrying tanks or headers a and in which the tube plates abut against flanges d on the headers, the contiguous surfaces of the tube plates and the header flanges are united by electric seam welding. Specification 287,624, [Class 64(iii)], is referred to.
Patent GB-622116-A (GB)
Title: Improvements in or relating to respirator masks
IPC: A62B18/00
Filed: 1946-06-28
Abstract: 622,116. Respirator masks. KENT, B. S., and WILSON, J. D. B. June 28, 1946, No. 19406. [Class 81(ii)] In a respirator mask of the reservoir-bag re-breathing type, the face piece 1 is integrally-moulded from polythene to a dished shape and adapted, in use, to cover the nostrils and mouth of the wearer, the moulding being thicker in the central portion than at the edges, parts 2 and 14 of which contact the wearer's face in the vicinity of the nose and chin being strengthened by rolling, and the centre portion being formed with two apertured bosses 5 and 8, one arranged to lie, in use, opposite the nostrils of the wearer and to carry means for restricting the flow of inhalate and exhalate and other adapted to lie, in use, opposite the mouth of the wearer and to carry the reservoir-bag 9. The facepiece may be additionally stiffened by integral ribs 16. Through a hole in the boss 8, which projects from the face-piece and is bevelled rearwardly and downwardly, passes an oxygen supply tube 10 which partially supports the bag 9, both tube 10 and bag 9 may be made of polyvinyl chloride. The means for restricting the flow of inhalate and exhalate may comprise a disc of phosphor-bronze gauze 11 having 80-90 meshes per inch. An integrally moulded ridge 17 may be provided in the face-piece to permit draining away of condensed moisture.
Patent GB-337407-A (GB)
Title: Improvements relating to the oxidation of hydrocarbons in the gaseous phase
IPC: C07C45/33
Filed: 1929-06-24
Abstract: 337,407. Harter, H. June 24, 1929. Gases, treating with electric discharge. - Air, or air enriched with oxygen, used in the oxidation of gaseous hydrocarbons to formaldehyde, is passed before coming into contact with the hydrocarbon through an electric flaming arc, whereby nitrogen oxides are formed. In Fig. 1, g represents a double-walled tube, through which is passed the flaming arc, made of quartz, zirconia, thoria, boron nitride or other substances which catalytically influence the formation of nitrogen oxides, and is preferably cooled by a stream of water. Another construction of this tube is shown in Fig. 2, in which case the oxidizing gas is introduced by way of the holes l and thereby serves also to cool the tube. The temperature of the arc may be regulated by displacing the electrode f; the other electrode e is fixed. The oxidizing gas after passing through the electric arc is admixed in the chamber v with the hydrocarbon gas which enters through the passage m and passes through a number of orifices o. The product of the oxidation passes over a series of baffles q, cooling pipes p, and leaves the apparatus at r.
Patent GB-584023-A (GB)
Title: Improvements in crankless mechanism
IPC: F16H23/10
Filed: 1944-10-10
Abstract: 584,023. Swash-plate mechanism. MICHELL, A. G. M. Oct. 10, 1944, No. 19468. Convention date, Nov. 20, 1943. [Class 80 (iii)] [Also in Group XXV] In swash-plate mechanism having a slipper 1 and a socket member 4 universally jointed together, projections 8 arranged in an annular series on one of the members engage recesses 9 on the other member to prevent rotation of each of the said members about the axis of the other. As shown, the slipper 1 which engages the swash-plate 2 carries the projections 8 which are of conical form and has a spherical base 6 seated in a spherical recess in the socket 4. The axes of the projections 8 may be in a common diametral plane, or they may be equally inclined thereto. The slipper may be of hollow form and may be in two parts 5, 16, Fig. 5, the ends 8a of the projections 8 serving to hold the two parts together. Alternatively, the two parts may be screwed together. In a modification the projections are on the socket and are of spherical form, the recesses being in the slipper. Specifications 118,098 and 322,676, [both in Class 80 (iii)], are referred to.
Patent GB-708109-A (GB)
Title: A machine for chopping up cut fodder lying on the ground, and for delivering it to a trailer
IPC: A01F29/09
Filed: 1952-08-01
Abstract: 708,109. Cuttersfor fodder. THWAITES, L. B. March 11, 1953 [Aug. 1, 1952], No. 19471/52. Addition to 708,104. Class 5 (1) The rotating cutter in the parent Specification is replaced by a cutter having at least two circumferentially spaced half length helical blades 1 2 of opposite helical direction respectively so as to direct the cut material towards the centre instead of towards one end as in the case of continuous end to end helical blades, and the two blades 2 overlap circumferentially at the middle. The blades are supported at the peripheries of discs 5 spaced by sleeves 7 and secured on the shaft 6. Specification 708,089 also is referred to.
Patent GB-227142-A (GB)
Title: Clod crusher and moss eradicator
IPC: A01B31/00
Filed: 1924-04-30
Abstract: 227,142. Sutherland, J. April 30, 1924. Cultivators; harrows; construction and combinations and arrangements of tools.-A clod-crusher and moss-eradicator comprises one or more heavy metal plates curved in cross-section and carrying blades and adjustable teeth. The Figure shows an implement provided with a draw-bar 3 and two groups of plates 1, one of which is shown inverted. Attached to the curved plates 1 are curved and tapering cutters 2 which may be in planes parallel or inclined to the line of draught. Teeth may be passed through holes in the plates and adjustably secured by wedges &c. The cutters and teeth may decrease in depth from the front plate to the rear plate. The plates are connected together by link pieces 5 each having a hook at one end and a hole or eye at the other.
Patent GB-569295-A (GB)
Title: An improved gear for securing and releasing gripe wires to life boats or the like orloads on lorries or the like
IPC: B63B23/18
Filed: 1943-11-24
Abstract: 569,295. Securing loads in lorries &c. HUNT, J. B. Nov. 24, 1943, No. 19606. [Class 78 (ii)] [Also in Group XXXIII] A gear for securing and releasing gripe wires to and from lifeboats or loads on lorries &c., comprises a horned cleat 13 on a rotatable disc member 5 carrying a stop 12 coacting with inclined faces 10, 11 on a bracket 8, and so situated that the cleat passes through a dead-centre position of maximum tension. Two disc members 5 may be mounted on the same tubular member 7 so that the fore-and-aft gripe wires may be simultaneously actuated by a handle 14.
Patent GB-308535-A (GB)
Title: Improvements in wire strainers or the like
IPC: F16G11/12
Filed: 1928-07-06
Abstract: 308,535. Mansell, E. July 6, 1928. Wire strainers comprise a rack 5, to one end 17 of which a wire end is anchored, or which is itself anchored to a post &c. and which is traversed by a sliding member 1 to which the other wire end is anchored. An operating lever 8, the socket 6 of which is bifurcated, is pivoted at 7 to the sliding member and is provided with two oppositely directed spring-pressed pawls 9, 10 arranged on opposite sides of the pivot for engaging the teeth of the rack. The pawl 10 is U-shaped and passes through apertures 3 in the sides of the sliding member whilst the pawl 9 passes through an aperture 2 in the top of the member. Alternatively, the sliding member may be stationary and the rack made to slide therethrough, or the sliding member may exert a thrust instead of a pull.
Patent GB-776632-A (GB)
Title: Automatic wear adjustment device for brakes
IPC: F16D65/56
Filed: 1955-07-07
Abstract: 776,632. Brake adjustment devices. SMITH, D. July 7, 1955, No. 19625/55. Class 103 (1). An automatic adjustment device for brakes of the kind wherein opposed shoes 2 are adapted to be applied respectively to the interior and exterior faces of the rim of a brake drum, comprise a device having two crank levers j fitted to the housing a on pivot pins j<SP>1</SP> when the brake is applied and the shoes 2 are moved towards the brake rim, the levers j follow up this movement under the action of spring h disposed between a sleeve d and the flange c<SP>2</SP> of a nut c on a threaded spindle b rotatable by a clocktype spiral spring i. On release of the brake, the shoes 2 are moved apart by pull-off springs v, Fig. 3, but such movement is limited to the clearance between the flanged sleeve d and the nut c.
Patent GB-153665-A (GB)
Title: Improvements in the removal of sulphur from gases
IPC: C10K1/10
Filed: 1919-08-11
Abstract: 153,665. Rambush, N. E. Aug. 11, 1919. Purifying processes; purifier waste, revivifying; materials for purifying.-Sulphur is removed from gases by passing them through a suspension of a suitable oxide, for example hydrated ferric oxide, in water or in a solution of a salt, for example ferrous sulphate, and subsequently revivifying the suspension by means of air or oxygen. The gas is passed at a into a tower A which it leaves at b, the suspension enters at d and after flowing over distributing cones and disks leaves at e and is forwarded by a pump n to a revivifying tower B which it enters at h. In the tower B the suspension is subjected to the action of air or oxygen supplied by a blower f, and a pump o draws the suspension from a point k and raises it to a pipe d in the tower A. A portion of the suspension is treated in a centrifugal separator m to remove the sulphur.
Patent GB-653125-A (GB)
Title: Improvements in and relating to charging valves for centrifuges
IPC: B04B11/04
Filed: 1948-07-23
Abstract: 653,125. Centrifugal separators. BAKER PERKINS, Ltd. July 23,1948, No. 19732. Convention date, Sept. 5, 1947. [Class 23] [Also in Group XXIX] A charging valve 10 for a centrifuge, e.g. for sugar, comprises a valve body 36, Fig. 3. connected to a supply duct 34 and having a curved end, and a closure member 48 adjustably pivoted to the body and co-acting with said end to control the flow of liquid, e.g. syrup, into the centrifuge basket 22, Fig. 1. The member 48 is rotated by a lever 72 connected to a piston in a cylinder 80 controlled by a solenoid valve 90, the energizing of which to open the valve is controlled by a time device which also controls the washing and stripping operations. When closed, the member 48 forms a drip-collecting pocket 66. The valve may be closed independently of the timing device if the level in the basket contacts a gauge 142, Fig. 8, mounted on a carriage 112 having rollers 122 engaging a slot 102 in a fixed bracket 100. The gauge is connected by a link 128 to the lever 72 whereby the gauge is moved into the basket when the valve opens and is removed when the valve closes. A rod 140 connected to the gauge is urged by a tension spring 154 to cause an arm 148 to engage a stop 150. At right-angles to the arm 148 is formed a cam 170, Fig. 7, which, when the gauge is engaged by the level in the basket, is rotated by the gauge to open a switch 178 thereby de-energizing the solenoid valve and causing the charging valve to close. Specification 653,126 is referred to.
Patent GB-153945-A (GB)
Title: Improvements in and relating to ships
IPC: B63B1/04
Filed: 1919-08-11
Abstract: 153,945. Jenney, W. P. Aug. 11, 1919. Resistance to propulsion, reducing. - High speed vessels having a waterline length of more than six times the beam, are fitted with fins 30, at the stern. These fins are either horizontal or inclined to the load water line at the same angle as the stream lines when the vessel is proceeding at the desired maximum speed, for the purpose of decreasing the resistance to propulsion.
Patent GB-1128517-A (GB)
Title: Improvements in or relating to self-propelled loaders
IPC: B62D11/14
Filed: 1966-05-04
Abstract: 1,128,517. Friction clutches; reverse gearing. UNIVERSAL MFG. CO. 4 May, 1966 [20 Aug., 1965], No. 19808/66. Headings F2C and F2D. [Also in Division B7] A reverse gear for self-propelled loader comprises an input sprocket 115 driving through a chain 119 freely rotatable sprockets 55, 55<SP>1</SP> which are selectively clutched at 29, 27 to sprockets 35, 35<SP>1</SP> for forward and reverse ratios. A chain 147 passing over the sprocket 35 and under the sprocket 35<SP>1</SP> transmits the drive to an intermediate output shaft 123. The clutches 29, 27 are controlled by a lever 97 having three operative positions, namely a first or forward drive position in which clutch 29 is engaged and the clutch 27 disengaged, a neutral position in which both clutches are disengaged and a third or reverse drive position in which the clutch 27 is engaged and the clutch 29 disengaged. Each clutch, Fig. 3, comprises an output sprocket 35 secured to a splined limb 33, on which are mounted an internally splined pressure plate 67 and clutch discs 61, separated by opposed pairs of dished release springs 65, a bearing 39 supporting an input sprocket 55 through a cup-member 45, which has projections 49 between which extend tab portions of friction discs 57, an axially movable bearing 69 and a fixed bearing 77. The bearings 69 and 77 support cam discs 71, 79 which have aplurality of complementary opposed tapered recesses 73, 83 (Fig. 5) engaged by balls which separate the cam discs. As the cam discs are rotated relative to each other by attached arms 75, 87 from the clutch disengaged position shown in Fig. 3 the balls move up the recesses pushing the cam discs 71, 79 apart and pressing the clutch discs 57, 61 together to engage the drive from the input sprocket 55 to the output sprocket 35. The arm of each inner cam disc is connected through a common link 93 or 95 with the outer cam disc of the adjacent clutch, both links being connected to the control lever 97 so that as one clutch is engaged the other is disengaged.
Patent GB-141996-A (GB)
Title: Improvements in or relating to tractors
IPC: B62D11/08
Filed: 1919-08-12
Abstract: 141,996. Withers, J. S., (Taylor-Wharton Iron & Steel Co.). Aug. 12, 1919. Endless-track vehicles.-Comprises a tractor in which each endless track runs on a closed oval trackway on which the main frame of the tractor is carried, means being provided for driving the tracks through change-speed and reversing gear, and differentially for steering. The trackway is made in two parts 2, 8, Fig. 2, hinged together at 12, and overlapping at 14; adjustment is effected by a screw device 23, which opens or closes the two parts. The angle-irons of the trackway form a roller-way for rollers 61, on which run angles 60 of the endless track. These angles 60 are connected together by links 67 and pins 64, and carry the treads 62 which have overlapping ends 71, and are closed in by plates 63. Side-thrust between the trackway and track may be taken up by balls 213 loose within the rollers 61. The main frame is pivoted to the trackway frame by means of clamps 56, and members 26 on the main frame are also spring supported by a rod 30 and spring 32 from the trackway. The clamps 56 enclose extensions 43 of the gear-box forming part of the main frame, and the sprocket-wheels 45 driving the tracks rotate loosely on the extensions 40. The sprocket-wheels are formed with internal teeth engaged by pinions 47 fixed on divided shafts 135, which are driven through friction clutches 161 independently operated by handlevers 200, so that the drive on either side can be disengaged for steering. Further movement of the lever 200, after the clutch is disengaged, applies a brake band 206 on the corresponding clutch drum. The shafts 135 are driven through change-speed and reversing gearing, Fig. 12, in which the driving-shaft 88 can drive the alined shaft 99 direct when a sliding pinion 95 is moved to the right, or at a higher speed when this pinion is moved to the left to engage a gear-wheel 100 on the constantly-rotating countershaft 105. A low speed and reverse are obtained by sliding a pinion 96. The shaft 99 drives the clutch shafts 135 through bevel gearing 146, side thrust in which is taken up by a ball bearing 156 co-operating with a flange on the fixed bearing 139. The gearing is all enclosed in a casing 8 which is formed with a central web to receive the bearing 139. The countershaft 105 of the change-speed gear extends through the casing and is formed with a splined end on which a pulley may be fixed to drive external machinery.
Patent GB-1075916-A (GB)
Title: Foundry melting process
Inventor: MOORE WILLIAM HENRY
IPC: C21C1/00
Filed: 1966-05-05
Abstract: The iron oxide content of molten foundry slags is determined by measuring the true temperature and the temperature as measured by a radiation or optical pyrometer (apparent temperature) and comparing the difference between said temperatures with a calibration curve of iron oxide content obtained chemically, plotted against the difference between real and apparent temperatures.  The true temperature may be measured by means of an immersion thermocouple or a radiation pyrometer adjusted to give black body readings and may be determined from the true temperature of a metal bath in contact with the slag.  The degree of oxidation during a metal melting operation may be controlled by adjusting the conditions in accordance with the determined iron oxide content.