baber/WOPTO huggingface dataset:
Patent GB-523764-A (GB)
Title: Multi-valve high frequency oscillators
IPC: H03B5/18
Filed: 1939-01-14
Abstract: 523,764. Valve generating circuits. STANDARD TELEPHONES & CABLES, Ltd., and FOSTER, J. Jan. 14, 1939, No. 1328. [Class 40 (v)] A number of valves are coupled together for the production of high frequency oscillations by connecting them to a transmission line, which forms the frequency determining circuit for each valve, at intervals equivalent to an integral number of electrical half-wavelengths, as shown. At the frequencies concerned a voltage node appears at a distance d from the valve electrodes which is small compared with a physical quarter wavelength. The valves are spaced apart along the line, the physical distance between the electrodes of adjacent valves being 2d + #/2 where n is zero or an integral number. The transmission line is extended from the electrodes of at least one of the outer valves a distance of d + #/4 + #/2 The supplies to anode and grid are brought in at voltage nodes through chokes, and the cathode leads are tuned. A type of valve which is preferably employed and enables a higher frequency to be obtained has the leads to the anode and grid brought out at both ends of the valve. Power is drawn off through a transmission line at right angles to the main transmission line and matched to it by adjusting the position of its point of connection. Specification 360,433 is referred to.
Patent GB-1392591-A (GB)
Title: Track rail for a magnetically suspended vehicle
IPC: H02K41/025
Filed: 1973-01-10
Abstract: 1392591 Electromagnetic levitation railway KRAUSS-MAFFEI AG 10 Jan 1973 [17 Jan 1972] 1349/73 Heading B7L [Also in Division H2] A track rail 3 for electromagnetically supporting and driving a suspended vehicle 1 comprises a soft magnetic core 4 which acts as an armature rail co-operating with vehicle-borne electromagnets 11, 12 for supporting the vehicle and a coating layer 7 of a good electrical conductor such as aluminium which forms a reaction rail co-operating with the vehicle-borne stator 16 of a unilateral linear induction motor. The core 4 is U-shaped and laminated; the laminations may be disposed as shown, or they may all extend vertically, or a stack of U-section plates may form the core. The layer 7 of aluminium may be on the inside surface of the core base as shown or on the outer, i.e. upper, surface thereof, in which case the stator 16 is mounted above the rail. Alternatively the layer 7 may be on the outer surface of one of the lateral legs 9 of the rail. The vehicle-borne electromagnets 11, 12 are alternately offset to left and right and may serve a guiding function in co-operation with core 4.
Patent GB-242123-A (GB)
Title: Improvements in the manufacture of biscuits or the like
IPC: A21B1/48
Filed: 1925-01-17
Abstract: 242,123. Vicars, E. L. Jan. 17, 1925. Biscuits.-In the manufacture of biscuits, the biscuits are deposited by a forming-machine on, or cut by a cutting-machine upon, a conveyer web common to the forming-mechanism, baking-oven and cooling-flight or chamber, or are passed by an intermediate web from the conveyer of a cutting machine to a conveyer common to the oven and cooling-flight or chamber, and after passage through the oven and the cooling stage are mechanically reversed side for side for inspection and packing. As shown in Fig. 1, a sheet of dough is passed from sheeting-mechanism 1 and is received upon the conveyer 2. The conveyer 2 may move intermittently or it may move continuously in which case the cutters 3 move with the conveyer during the cutting operation. The oven 4 is heated by burners 5, streams of electrically heated air or by other means. The cooled biscuits fall on a conveyer 6 which feeds them to an inspection and packing conveyer 7 in such a manner that the biscuits are reversed. In a modification, the dough passes from a hopper and is cut off by wires or other means to form cut cakes which are deposited on the oven conveyer. In another modification, an Intermediate web having a fripping section, conveys the cut biscuits from the cutting-mechanism to the oven band, the intermediate web compensating for differences in speeds of the cutting and oven conveyers, and any adjustment of the spacing of the biscuits.
Patent GB-122686-A (GB)
Title: Improvements in or relating to Means for Reducing the Visibility Aeroplanes.
IPC: B64D47/04
Filed: 1918-01-26
Abstract: 122,686. British Emaillite Co., and Goldsmith, J. N. Jan. 26, 1918. Visibility of aircraft, diminishing; lighting.-To render an aeroplane less visible, its under surface is artificially illuminated so as to approach the light intensity of the cloud background. For this purpose, the lower surface of the planes may be made translucent by using doped silk and illuminated by electric lamps placed inside the planes. Alternatively, lamps may be placed in the planes behind transparent windows in the lower surfaces or illumination by reflected light may be used. Means for cutting out some of the lamps to vary the lighting intensity are provided.
Patent GB-121538-A (GB)
Title: Improvements in Wheels for Road Vehicles.
Inventor: DRURY ENSOR DIXIE
IPC: B60C7/16
Filed: 1918-01-28
Abstract: 121,538. Drury, E. D., (Naylor, H. A.). Jan. 28, 1918. Metallic spring bodies and cores.-A spring tyre comprises a rubber &c. cover 2 distended by curved springs 4 which are connected to a band 3 and braced by springs 6 arranged as shown. The outer ends of the springs 4 are rounded and the ends of the springs 6 are fitted with anti-friction rollers 7.
Patent GB-587831-A (GB)
Title: Improvements relating to the manufacture of phenolic resins suitable for use as cation exchange materials
IPC: B01J39/18
Filed: 1945-01-19
Abstract: Synthetic resins having cation-exchange properties are obtained by partially condensing a monohydric phenol and an aldehyde or ketone, sulphonating the partially condensed product and then reacting the sulphonated product with a further amount of aldehyde or ketone until a water-soluble gel is obtained.  One mol. phenol was refluxed for one hour with one half-mol. formaldehyde in presence of sodium bicarbonate and the product distilled up to 160 DEG  C., the residue was cooled and 107 gs. 98 per cent H2SO4 added, the temperature being kept below 98 DEG  C.  The sulphonated product was diluted with water and 0.75 mol. formaldehyde added; the resulting gel granulated on washing with water, the grains being dried and ground to the required size.  A resin made from crude carbolic acid containing 17.5 m-cresol, 5 per cent p-cresol and 52.5 per cent phenol is also described.
Patent GB-390281-A (GB)
Title: An improved belt conveyor gear head
IPC: B65G23/34
Filed: 1932-01-19
Abstract: 390,281. Endless-belt conveyers. CLEPHAN, G., The Cottage, Monkseaton, Northumberland. Jan. 19, 1932, Nos. 1638 and 4996. [Class 78 (i).] In a conveyer gear head of the kind comprising a plurality of driven drums C, D, the driving motor E is arranged between the side members A of the gear head frame. The motor shaft is connected by reduction gearing 1, 2 to a countershaft G which is connected by reduction gearing 3, 4 to the shaft of the drum D. The gear 4 meshes with a similar gear on the shaft of the other drum. The motor is preferably of the kind comprising a cylindrical stator held in position between segmental band clips F, F which enable it readily to be removed. The area of contact of the belt with the drum D may be increased by providing a binder pulley H which may be resiliently mounted in an adjustable block and used also as an adjustment and tension pulley. In a modification, the motor is arranged with its axis at right angles to the drum shafts and drives the countershaft through bevel gearing. In each construction material is prevented from spilling into the sides of the conveyer head by plates attached to the side frames of the head and extending downwards so that their edges overlap the edges of the belt.
Patent GB-675948-A (GB)
Title: Improvements in or relating to axial-flow pumps
IPC: F04D3/00
Filed: 1951-01-23
Abstract: 675,948. Axial-flow pumps. BAEZ, G. F. Jan. 23, 1951, No. 1767/51. Class 110(i) An axial-flow pump comprises a casing 1 having an inlet 3 and outlet 9, stator blades 49, 13 and contrarotating rotor blades 47, 30; the inclination o f the blades 30 is opposite to that of the blades 47, 13, and the blades 49 are parallel to the axis of the pump. The pump is lowered into a well 2. The blades 47 are carried by a rotor 45 mounted on a shaft 40, and the blades 30 are carried by a rotor 29 mounted on a hollow shaft 28 which is connected to the shaft 40 by bevel gears 35, 58, 53 so as to rotate in the opposite direction. The driving means is coupled to the shaft 40 or alternatively to the shaft 57, which in this case is suitably extended. The outlet 9 is cylindrical at the end 10, changing to a kidney shape embracing a large arc of an annular discharge chamber 14. Leakage is prevented by packing 24, 42, 64. A filter may be screwed to the inlet at 4.
Patent GB-1376563-A (GB)
Title: Attachment unit for the rotary output of a power tool
IPC: B27G19/06
Filed: 1973-01-12
Abstract: 1376563 Sawing ANDREAS STIHL MASCHINENFABRIK 12 Jan 1973 [12 Jan 1972] 1769/73 Heading B5L [Also in Divisions B3 and F2] An attachment unit for attachment to the rotary output of a power tool, such as a chain saw, comprises an attachment unit body 28, a clutch member 2 rotatable on the body and disposed for engagement with a complementary clutch member 1 on the output 99 of the tool when the unit is attached to the tool, an attachment tool mounting 34 on the body, drive means 36 from the clutch member 2 on the body to the attachment tool mounting, and resilient friction means 3 engaged with the clutch member on the body and exposed for engagement with the complementary clutch member. The clutch member 2 is in the form of a drum which is formed with a V-belt pulley 18 and is mounted on bearings 29 on the body 28. The clutch member co-operates with the complementary clutch member 1 which is secured to a sprocket 5 rotatable on the output shaft 99 of the chain saw 25 to which, when the guide for the saw chain is removed, the body is secured by bolts 31 passing through holes in a flange 30 of the body. An arm 33 of the body supports the mounting 34 for the tool, such as an abrasive disc 27, the mounting having a V-belt pulley 35 for the belt 36 from the pulley 18. The complementary clutch member 1 is adapted to be driven by fly elements 96 of a centrifuged clutch 97 mounted on the output shaft 99 of the chain saw. The member is of drum form and its external surface 7 is received within the drum of the clutch member 2. The resilient friction means is in the form of segments or an undulating spring strip 3 which is disposed between the clutch members and has portions 9, 11 frictionally engaging the members to transmit the drive therebetween. The strip is located between shoulders 14, 15 on the clutch member 2 and may be slightly conical to assist reception of the clutch member 1. The strip may have abutting ends 17 or be endless and may be transversely curved to accommodate the curved shape of the drums 7 of the clutch member 1 when produced by deep drawing. A bolt 94 is provided to draw the clutch member 2 from the clutch member 1. An intermediate element, such as a lubricant, may be inserted between the friction means and one of the clutch members to determine an overload limit.
Patent GB-1387511-A (GB)
Title: Method for the preparation of hydrogen peroxide
IPC: C01B15/023
Filed: 1973-01-12
Abstract: 1387511 Hydrogen peroxide preparation MITSUBISHI GAS CHEMICAL CO Inc 12 Jan 1973 [12 Jan 1972] 1837/73 Heading ClA [Also in Division C2] H 2 O 2  is prepared by the anthraquinone process using a dialkyl anthraquinone of the formula wherein R is a CH 3  group and R<SP>1</SP> or R<SP>11</SP> is an alkyl group having 5 or 6 carbon atoms. The anthraquinone may be 2-methyl-iso-secamyl, 2-methyl-t-amyl, 2-methyl-t-amyl, 2- methyl-iso-sec-amyl or 2-methyl-n-hexyl anthraquinone.
Patent GB-860508-A (GB)
Title: Improvements in swivelling chairs for railway carriages or the like
IPC: B61D33/00
Filed: 1959-01-19
Abstract: 860,508. Seats. MORITZ, P., and MORITZ, V. Jan. 19, 1959 [Sept. 11, 1958], No. 1923/59. Class 52(2). In a railway or other vehicle seat rotatable through 180 degrees, a base 1 is secured to the floor of the vehicle and a seat frame 2 is fixed to a base plate 3 having a central extension forming a pivot rotatable in a seating in a member laterally displaceable by sliding on and between tubes 7, 8 ridigly connected to base 1, the member being immobilized at one or other of its end positions by means of necked pins 9, 10 which engage springs 11, 12. Hooks 15, 16, 17, 18 on base I engage hooks on the frame 2 in the positions of use so that the seat must be moved laterally to disengage said hooks before it can be rotated.
Patent GB-988000-A (GB)
Title: Apparatus for automatically coupling and uncoupling railway vehicles
IPC: B61G7/04
Filed: 1962-01-19
Abstract: 988,000. Apparatus for coupling and uncoupling railway vehicles. STAMICARBON N.V. Jan. 19, 1962 [Jan. 19, 1961], No. 2146/62. Addition to 945,550. Heading B7T. The lazy tongs hook tilting linkage of the automatic coupler and uncoupler apparatus described and shown in the parent Specification is replaced by a more compact rocking lever mechanism, Fig. 1, the other parts of the apparatus remaining the same. The improved hook tilting mechanism is accommodated in a well 3 below the car track and may be drawn along on a carriage 16 guided by rails 17 against the action of a spring 23 by movement of a coupling rod 15. A support 25 slidable in guides 68 with respect to the carriage pivotally carries at 28 a hook tilter 27 which is weighted at 30 so as to run over a cam track 73 fast with the carriage. A rocking lever 70 pivoted at 71 to the carriage engages a pin on the support 25 and may be caused to pivot and move the support forwardly with respect to the carriage by abutting a roller 79 on a rocking lever 75 pivoted at 76. An auxiliary member 20 for correcting the position of the hook 8 is also provided, see the parent Specification. In operation, mine cars displace the carriage 16 and support 25 forwardly through the coupling lever 15, and the rocking lever 75 is swung by the pin 77 and link 78, Fig. 2, to pivot the lever 70 clockwise and move the support 25 with respect to the carriage 16. The end 30 of the support follows the cam 73 and tilts the crossbar 29 upwardly to lift the hook 8. The hook is released for coupling when the carriage is returned by the spring 23. The hook may, however, be lowered gradually by suitably shaping the end of the lever portion 74. The hook tilting member may be kept moving faster than the cars and the carriage 16 for a short period after the hook has been brought to its highest position, and the member may be slightly lowered at the end of its forward movement. This may be achieved by shaping the lower end of lever 74 and by raising the track 73 at its lower end.
Patent GB-209609-A (GB)
Title: Improvements in viewing devices for spirit levels
IPC: G01C9/32
Filed: 1922-01-25
Abstract: 209,609. Taylor, A., and Taylor, E. W. Jan. 25, 1923. Levels.-A viewing-device for spirit levels consists of a hinged plate B fitted with a mirror or mirrors A the reflecting surfaces of which are inclined at an obtuse angle so that the separated ends of the bubble appear to an observer at the point D to be brought close to one another.
Patent GB-752106-A (GB)
Title: Improvements in or relating to clock-work escapement mechanisms
IPC: G04B15/08
Filed: 1954-01-26
Abstract: 752,106. Escapements. HETTICH, H. Jan. 26, 1954 [Jan. 26, 1953],'No. 2304/54. Class 139 In an escapement, Figs. 1 and 2, overbanking is prevented by the co-operation between a split ring 10 on the balance staff 11 and an extension 7<SP>111</SP> of one of the horns 7" of the lever 5, 7. The balance 8 is mounted and supported as disclosed in Specification 735,471 and the escape wheel 3 is in a plane at rightangles to the plane of the balance. In a modification, not shown, the split ring is replaced by a cup-shaped member.
Patent GB-431445-A (GB)
Title: Improvements in or relating to crates for bottles and the like
IPC: B65D25/04
Filed: 1935-01-24
Abstract: 431,445. Crates for bottles &c. CALDERS, Ltd., and BICKNELL, C. J., Plough Road, Rotherhithe, London. Jan. 24, 1935, No. 2426. [Class 18] A wooden crate to hold bottles &c. has a compartmented interior and its base is constituted by spaced battens 3 recessed into the edges of opposite walls 1 in such manner that the battens can be removed without disturbing the walls, after which the partitioning structure can be removed through the open bottom. Where, as shown, the recesses in the walls are undercut, the battens are correspondingly chamfered. The battens are screwed to the walls 1, but they can be slid out without disturbing the usual binding wire 6.
Patent GB-802782-A (GB)
Title: Improvements in or relating to devices for laterally displacing grass, hay or other material lying on the ground
IPC: A01D78/00
Filed: 1955-01-28
Abstract: 802,782. Side-delivery rakes. VAN DER LELY, N.V., C. Jan. 28, 1955 [Jan. 29, 1954], No. 2667/55. Class 6(3). A raking device comprises rake teeth mounted on rake bars 83 pivotally attached to rotatable supports 79 which may be driven from a tractor power shaft, the teeth being formed with a portion which is under tension when the teeth are in contact with the ground. As shown, a single piece of wire is used to form two teeth 85- 92 the parts 87-90 of which are interconnected by bends, the middlemost of which is secured to the bar 83. In a modification two girders are hingedly connected to a bow member, each girder being associated with a running wheel and provided with two rotatable supports connected by rake bars. By setting the position of the girders with respect to the bow the machine may be converted from a raking device into a swath turner. In this embodiment the rake bars are moved by contact with the ground.
Patent GB-590522-A (GB)
Title: Improvements in or relating to head rests for chairs
IPC: A61G15/12
Filed: 1945-02-02
Abstract: 590,522. Head rests. RITTER CO., Inc. Feb. 2, 1945, No. 2718. Convention date, Jan. 27, 1944. [Class 52 (ii)] [Also in Group XXXII] A head rest device concerned, as in Specifications 590,521 and 590,523, with means for resiliently and detachably mounting the individual head supporting pads 14 on the bracket arms 12, comprises a spiral metal spring 17 which is clamped at its periphery on to a seating 16 in the end of a bracket arm 12 and which carries a metal member 21 on its inner coils, said member being provided with a socket 22 to receive a spigot 25 which is mounted on the back of a pad 14 and which slidably and frictionally engages in the socket 22.
Patent GB-222744-A (GB)
Title: Improvements in or relating to cleaning and polishing appliances for floors, walls, ceilings and other surfaces
IPC: A47L13/44
Filed: 1924-02-02
Abstract: 222,744. Hindell, H. G., and Hatch, E. V. Feb. 2, 1924. Fixing pivoted handles by sockets of special forms with clamping devices.-The handle. 9 of a cleaning or polishing appliance is clamped between two similar socket parts 7 pivotally mounted on a common pin 6. Each part is formed with a pair of bosses 13, one being staggered to accommodate the corresponding boss of the other part.
Patent GB-673201-A (GB)
Title: Improvements in or relating to compressors
IPC: F25B31/00
Filed: 1950-02-02
Abstract: 673,201. Compressors. SORENSEN, S. E. Feb. 2, 1950, No. 2748/50. Class 8 (i) A compressor comprises a cylinder c containing a piston b connected to an end 36 surrounding a cam 46 rotated by means of a shaft 47. A bellows a is secured to the piston b and the cylinder c forming a return chamber for the compressed gas. The cylinder c is provided with a head e having a bearing 10 secured thereto and mounted on a shaft 15 to allow the cylinder to oscillate. The return pipe is connected at 54 and gas is drawn into the cylinder through a valve 44 in the piston head. Delivery takes place through a valve 6 and passes through a pipe 59 to a filter g, Fig. 5, comprising three chambers h, h<SP>1</SP>, h<SP>2</SP>. The chamber h<SP>2</SP> contains to the level x oil which is forced by the pressure through a filter 62 and a pipe 63 to lubricating grooves 66 in the piston. The chamber h<SP>1</SP> contains filtering material and the outlet 54 is taken from the chamber h. A counterweight 67 and a fan j are secured to the end 461 of the cam 46. The fan j draws air through a condenser when the pump is used in refrigeration and passes the warm air over the bellows a to obtain better gasification.
Patent GB-703130-A (GB)
Title: Improvements in ship hatches
IPC: B63B19/18
Filed: 1952-02-04
Abstract: 703,130. Hatch covers. HANSEN, K. E. T. H. Feb. 4, 1952 [Feb. 5, 1951], No. 2913/52. Class 113(1) In a ship's hatch having hatch covers b supported (when the hatch is closed) upon beams a which are movable across the hatch in a direction normal to their length, each cover is pivotally supported at e by a movable beam along the trailing edge of the cover, as determined by the direction in which the covers are moved when opening the hatch, and is supported at i along the opposite or leading edge by the preceding movable beam, or the end coaming of the hatch opening, in such a manner that each cover slides over the next preceding cover, or the end coaming of the hatch opening, during opening of the hatch. When moved completely together the covers take a partly elevated position, as shown in Fig. 3. The movable beams have semi-round ribs f to facilitate their moving along recesses d on the hatch coaming and are prevented from uplifting by means of a rail having gaps to enable the beams to be lifted off in definite positions.
Patent GB-102413-A (GB)
Title: Improvements in Portable Printing Apparatus.
Inventor: DARKE FRANK
IPC: B41L15/06
Filed: 1916-02-28
Abstract: 102,413. Darke, F. Feb. 28, 1916. Rotary machines; inking - apparatus. - A portable hand printing device comprises a printing-roller a pro vided with longitudina rows of type b held frictionally in grooves a<1> therein and with a toothed wheel c at each end, and held on pivots e mounted in the legs of the U-shaped portion of a handle f<2>, the toothed wheels c being adapted to engage the teeth h<1> in racks h secured to each side member g of an open rectangular frame. Flanges c<2> are provided on the roller a to prevent the type from becoming displaced endways. To prevent the roller a from being applied to the racks wrong way up, projections f<3> on the U-shaped handle member are provided to receive an inking-roller i, the spindle i<1> of which is removable through a slot i<3>. The frame g is hinged to one side of a projection j<1> on a base-plate j through a separate element l by hinges k<1>. k respectively. A sheet of rubber or other suitable material is secured to the base j to rest the sheets of paper or book on. In place of the inking - roller i, a separate inking - pad, Fig. 8, may be used, comprising a pad n of absorbent material secured to a base n<2>, a space n<1> being provided between its edges and the sides of the pad frame. The end section of the roller a can be removed from the right-hand side of the roller and placed on the left-hand side, the meeting point of the two sections being indicated by the line p, this being for use when it is desired to print certain symbols sometimes on the left and sometimes on the right. The apparatus is intended for use in printing or stamping symbols on a sheet of paper divided into a number of equal parts by horizontal lines, the pitch of the lines agreeing with the pitch of the type-grooves on the roller a, and by equally or unequally spaced vertical lines for correlating symbols.