baber/WOPTO huggingface dataset:
Patent GB-341892-A (GB)
Title: Improvements in the control of radio and sound reproducing apparatus and the like
IPC: H03G3/16
Filed: 1929-10-22
Abstract: 341,892. Wireless receiving apparatus. MAINS RADIO GRAMOPHONES, Ltd., 8, Vaughan Street, and ROBERTS, E. H., 283, Legrams Lane, both in Bradford, Yorkshire. Oct. 22, 1929, No. 32006. [Class 40 (v).] In a thermionic valve circuit adapted to receive wireless signals or work in conjunction with a gramophone pick-up according to the position of a switch, a voltage control potentiometer is provided to be operated by the dial of another instrument of the apparatus and controls the input and/or output in both positions of the switch. As shown, the switch arms 10, 11, 12 have three positions S, G, L, and in the positions S, L the circuit is adapted to amplify and demodulate signals from the aerial 1, the potential of the screening grid 14 of valve 3 being regulated by the variable resistance 8 which is mounted on the same shaft as a rotatable reaction coil 13 arranged inside the tuned-anode coil 5 (Figs. 2 and 3, not shown;. When the switch is in position G the valve 3 is disconnected from the valve 4, the latter amplifying the impulses from the pick-up 7, and the resistance 8 now being connected as a volume-control potentiometer across the pick-up. It is stated that the resistance 8 may alternatively control either the anode voltage of one or more of the valves, the initial signal voltage applied to the apparatus, or the radio-frequency signal voltage applied to the grid of the detector valve.
Patent GB-409049-A (GB)
Title: Improvements in apparatus for dispensing measured quantities of liquid
IPC: B67D7/16
Filed: 1932-11-12
Abstract: 409,049. Dispensing liquids. WILSON, H. J., Branscombe, Highweek, Newton Abbot, Devon. Nov. 12, 1932, No. 32006. [Class 102 (ii).] In apparatus for delivering measured quantities of any of a number of different liquids, the admission of a minimum quantity of a liquid to the measuring apparatus serves to lock a distributing mechanism controlling the various liquid supplies until all the liquid has been discharged from the measuring apparatus. The distributing mechanism comprises a valve housing k divided into compartments each communicating through a pipe such as n with a source of supply of a particular liquid. Each compartment has a port opening to a central tapered bore adapted to receive a rotary plug valve h having a single port. The upper part of the valve is secured to a combined neck and gland c having a transverse pin engaging a slot in the lower end of a telescopic pipe a, z forming the inlet to and overflow from a measuring chamber and adapted to be rotated by means of a hand wheel v. The neck and gland c is normally prevented from rotating by the engagement of a lever p with a disc having peripheral notches, but may be released by means of a foot pedal r. A basin e having a valve controlled opening adapted to receive the end of a delivery pipe allows the return of any surplus liquid in the measuring chamber. The chamber is provided with a float d<1> which engages a cross piece c<1> connected by way of rods b and d to a locking pin j. If liquid is admitted to the chamber the float rises and allows the pin to descend through an opening in the valve h and into one of a number of holes o in a plate l thus locking the valve.
Patent GB-1516364-A (GB)
Title: Pitch change signal means with differential gearing
IPC: F04D29/36
Filed: 1975-07-31
Abstract: 1516364 Toothed gearing UNITED TECHNOLOGIES CORP 31 July 1975 [31 July 1974] 32024/75 Heading F2Q A variable pitch fan or propeller comprises a blade 14 rotatably mounted on a hub 22 which is driven from a shaft 32 through reduction gearing 34, 36, 38, and pitch changing means including a driving shaft 42 which is adapted to drive a planet carrier 46 supporting a planet gear 58 meshing a sun gear 52 on shaft 32 and hence a ring gear 62 on an harmonic drive 64 which is adapted to rotate the blade 14 about its axis through bevel gearing 74, 76.
Patent GB-160015-A (GB)
Title: Improvements in or relating to colliery tubs or corves, ropeway wagons and the like
IPC: B61D11/02
Filed: 1919-12-22
Abstract: 160,015. Bruce, S. Dec. 22, 1919. Sides and floors.-The sides, ends, and floor of a colliery tub or wagon are constructed of two layers of wood e, f, having lapped joints with an intermediate reinforcing-layer g of expanded metal, woven wirework, &c. placed between the layers and embedded therein, by pressure, and the lower edges and corners of the wagon are encased in a metal tray b attached to the underframe and having upturned edges c. The metal tray b may be replaced by L-shaped strips of angle-iron, and the wagon body may be strengthened by glueing, riveting or bolting the boards e, f together.
Patent GB-190349-A (GB)
Title: Improvements in spanners
IPC: B25B13/46
Filed: 1921-11-30
Abstract: 190,349. Roche, P. Nov. 30, 1921. Rigid-jaw ratchet wrenches.- A ratchet wrench comprises a hollow handle 6 with a head 7 in which is rotatably mounted a cylindrical jaw member 1 having at its ends polygonal sockets 3, 4 for nuts of different sizes and provided at its centre with a series of holes 5 adapted to be engaged by the bevelled end 9 of a spring-pressed actuating-rod 8 located within the handle. The jaw member 1 is shouldered at 2 to shut the head 7 and may be retained in position by any suitable means, such as a circular spring 20 engaging a groove 22 in the member 1 and secured at 21 to the handle. The rod 8 is supported in actuating position by a spring 14 acting between a shoulder 13 on the rod and a part 15 threaded into the handle 6, and is held in position for actuating the jaw in either direction by means of a terminal button 10 having projections 11 engaging notches 12 in the handle.
Patent GB-1278489-A (GB)
Title: Helicopter rotor hub assembly
IPC: B64C27/51
Filed: 1969-06-26
Abstract: 1278489 Helicopter rotor; hub assemblies SUD-AVIATION SOC NATIONALE DE CONSTRUCTIONS AERONAUTIQUES 26 June 1969 [4 July 1968] 32243/69 Heading B7W A hollow unit construction helicopter rotor hub assembly 1 comprises at its top hollow arms 2 each of which has a rotatably mounted sleeve 4, a flapping and lead-lag pivot device being interposed between each of the sleeves 4 and a clevis 5 for supporting a rotor blade. Held in the clevis 5 at the outer end of the sleeve 4 is a leadlag pivot 6, the axis 8 of which is perpendicular to the axis of the arm 2. A flapping pivot 10 is supported in a bore in pivot 6-and supports a blade attachment clevis 18. A lead-lag motion damper (15, Fig. 2, not shown) is disposed between the pivot 6 and the sleeve 4. Catch 20 in the clevis 18 is maintained in pressure contact against ridge 21 on the pivot 6 by spring 22, but when the rotor revolves, centrifugal force exerted on the catch 20 compresses the spring 22 so as to allow free rotation of the clevis 18. A pitch control link is pivoted to a clevis on the sleeve 4.
Patent GB-761995-A (GB)
Title: Improvements in or relating to means for controlling the travel of rail vehicles such as mine trams
Inventor: KIDD ARCHIBALD WATSON
IPC: B61J3/04
Filed: 1953-11-20
Abstract: 761,995. Chain railways. COAL INDUSTRY (PATENTS), Ltd. Nov. 19, 1954 [Nov. 20, 1953], No. 32306/53. Class 104 (2). A means for controlling rail vehicle travel comprises at least one endless chain driven along the track and having a plurality of spring- loaded fingers to engage vehicles on the track in order to push or retard the vehicle according to the relative vehicle and chain speeds with the fingers engaging the vehicle axles in such a manner that when the load exerted by the axle on the finger exceeds a predetermined value the finger is depressed to allow the axle to pass. The fingers 5 upwardly biased by springs 48 are slidably mounted in recessed side plates 35 attached to a roller link chain 4. The amount of vertical movement of the fingers 5 is limited by a pin 44. Should a vehicle approach the fingers 5 of a speed greater than that of the fingers 5 a finger or successive fingers is or are depressed by the vehicle axle until the vehicle is slowed down and is travelling at the same speed as the fingers 5 which then take up the drive or retard the vehicle depending on whether the chains 4 are moving in a horizontal or upwardly or downwardly inclined direction. The assembly comprises a driving unit 1, a tension unit 2 and one or more intermediate units 3. The units 1, 2 and 3 are provided with covers 11, 12 and 13 formed with raised edge slats 14 through which the fingers 5 project.
Patent GB-813780-A (GB)
Title: Seal
IPC: B64C11/06
Filed: 1957-10-16
Abstract: 813,780. Joint-making packing; stuffing- box substitutes. GARLOCK PACKING CO. Oct. 16, 1957 [Nov. 15, 1956], No. 32352/57. Classes 122 (3) and 122 (5). An annular seal 10, Fig. 3, comprises an outer flexible sealing member 12 having inclined lips 26, 28, an inner flexible sealing member 14 having inclined lips 30, 32 and a relatively rigid annular connecting portion 16. The member 16, in the form of a metal channel section, has its flanges 22, 24 bonded within the members 12, 14, and its web 20 bonded to a connecting web 18 formed integrally with the members 12, 14. As shown in Fig. 1 applied to a variablepitch propeller, the seal 10 is mounted in an annular space defined by surfaces 62, 78, 80, 82 of the hub 60 and associated fixed parts 64, 66a, and the surface 76 of the propeller base 54. The seal is retained in the space by three screws 42 having portions 44 passing through clearance holes 38 in the seal, and threaded ends 48 for screwing into the hub part 64. The shouldered length of the screw is greater than the combined thickness of the webs 18, 20, so that a certain axial freedom of the seal is obtained. When the seal is fitted, the deflection of the lips 32, 28 is limited by the head 46 of the screw 42, the resilience of the lips maintaining sealing contact with the surfaces 76, 78. The sealing contact is increased by pressurized lubricating oil acting in the groove 34, between the lips 30, 32 and, in a marine propeller, by water acting in the groove 36 between the lips 26, 28. If desired, the screws may be used to clamp the seal tightly on the part 64, and in some cases the seal need not be anchored in position.
Patent GB-330210-A (GB)
Title: Improvements in knitted stockings for varicose veins
IPC: D04B9/46
Filed: 1929-10-24
Abstract: 330,210. Damon, F. Nov. 19, 1928, [Convention date]. Elastic stockings; limb binders.-In a knitted stocking for varicose veins of the type comprising an opening for the heel surrounded by a zone B, D, G, F, E of double thickness, this zone has the form of a quarter of a sphere or an ellipsoid, bounded by two rectangular planes. The front and rear faces 1, 2 of the leg of the stocking are knitted by the two needle rows of a rectilinear machine, the stitches of the front face are removed and mounted on a comb, and two tubular bands are knitted, with half the needles, on the lines B, D. The two thicknesses of the bands are connected by rows of stitching and the bands are joined along the lines D, G and E, F. The knitting of the foot is then commenced along the line E, B, C.
Patent GB-1136517-A (GB)
Title: Improvements in or relating to multiple valve control devices with position lock mechanisms
IPC: F16K11/18
Filed: 1967-07-14
Abstract: 1,136,517. Valves; linkwork. WESTING- HOUSE AIR BRAKE CO. 14 July, 1967 [21 July, 1966], No. 32535/67. Headings F2K and F2V. Valves 3, 4, 5 are actuated by a "joystick" 15, 37 provided with a device which latches it in a position in which either valve 3 or 4 is fully open whilst permitting free movement of the joy-stick to operate valve 5. Lever 15 is movable about axes 16, 21, carries a threearmed valve actuator 7 and is pivoted at 40 to an upper tubular lever 37 which carries a yoke 38 provided with surfaces 45, 46 adapted to slide on the shoulders of a #-shaped member 39. Lever 15 is guided in a slot 47 in member 39 which is pivoted coaxially with pivot 21 at 50, 51. When levers 15, 37 are moved out of alignment by movement of lever 37 beyond the limit of travel of lever 15 in slot 47, one of steps 53, 54 in member 39 is engaged by the associated lip 43, 44 on yoke 38 to latch lever 15 in a position in which valve 3 or 4 is fully open, but due to pivots 50, 51 lever 15, together with member 39, is still free to pivot rearwardly to operate valve 5. A sleeve 58 is slidable in lever 37 to prevent relative pivoting of levers 15,37 thereby rendering the latching mechanism inoperative.
Patent GB-942613-A (GB)
Title: Structural material compositions containing clay
IPC: C09K17/14
Filed: 1961-09-11
Abstract: A structural material composition comprises, in intimate admixture, clay, clay soil or other mixtures containing at least 5 weight per cent of clay and a minor proportion, on the basis of the clay content, of a catechol compound having the formula <FORM:0942613/C1/1> wherein A is OM, the M of which may be H, NH4, metal or a protonated-amine cation; R1 is R or <FORM:0942613/C1/2> the R of which may be an alkyl, aryl, aralkyl or cycloalkyl radical containing from 1 to 18 carbon atoms and, possibly, 1 or 2 chloro substituents; R2 is A, R, H or -COOM1 the M1 of which may be H, alkali metal, methyl or ethyl; or R1 with R2 may be interconnected to form a naphthalene ring with the benzene ring; or the quinone oxidation products of those compounds of the formula in which the two A groups are hydroxyl groups. The composition may also contain up to 5% by weight of a cementing agent, e.g. Portland cement or lime. Several catechol compounds are specified, typical examples being 4 - tert. - butylpyrocatechol, 4 - cyclohexylpyrocatechol, 5 - phenyl - o - pyrocatechuic acid and its methyl ester, 2, 3, 4-trihydroxy-benzophenone, 2,3-naphthalenediol and 4 - (1,1,3,3 - tetramethylbutyl) - o - benzoquinone.ALSO:In Example 3, the preparation of solutions of metal salts or complexes of 4- tert.-butylpyrocatechol is described.  The following derivatives are mentioned: K, Fe, Cu, Zn, Al, Th, Ca and NH4.  The potassium compound is obtained by dissolving the catechol compound and KOH in water. Typical of the other preparations is that of the iron derivative wherein the catechol compound and FeCl3.CH2O are added to acetone, followed by the addition of NaOH in methanol; the mixture is then centrifuged, and the supernatant diluted with water.  The solutions of the metal compounds are used in stabilizing clay soil (see Division C3).ALSO:A structural material composition comprises, in intimate admixture, clay, clay soil or other mixtures containing at least 5 weight per cent of clay and a minor proportion, on the basis of the clay content, of a catechol compound having the formula: <FORM:0942613/C3/1> wherein A is OM, the M of which may be H, NH4, metal or a protonated-amine cation; R1 is R or - <FORM:0942613/C3/2> -R the R of which may be an alkyl, aryl, aralkyl or cycloalkyl radical containing from 1 to 18 carbon atoms and, possibly, 1 or 2 chloro substituents; R2 is A, R, H or -COOM1 the M1 of which may be H, alkali metal, methyl or ethyl; or R1 with R2 may be interconnected to form a naphthalene ring with the benzene ring; or the quinone oxidation products of those compounds of the formula in which the two A groups are hydroxyl groups.  The composition may also contain up to 5% by weight of a cementing agent, e.g. Portland cement or lime. Several catechol compounds are specified, typical examples being 4-tert.-butylpyrocatechol, 4-cyclohexylpyrocatechol 5-phenyl-o-pyrocatechnic acid and its methyl ester, 2, 3, 4-trihydroxy benzophenone, 2, 3-naphthalenediol and 4-(1, 1, 3, 3-tetramethylbutyl) -obenzoquinone.
Patent GB-618393-A (GB)
Title: Improvements relating to the control of dynamos on cycles
IPC: B62J6/06
Filed: 1946-11-02
Abstract: 618,393. Electric lighting-set for cycles. TRANAH, K. T. C. Nov. 2, 1946, No. 32568. [Class 136 (i)] Controlling means for dynamos on bicycles comprises a lever which is mounted in a casing attached to any part of the frame and is connected by Bowden wire mechanism to a lug projecting from the dynamo casing, means being provided on the casing for holding the lever in the position in which the dynamo is out of action. The lever C is spring mounted on a pivot B in a casing A which is clipped to the frame. The cable of the Bowden wire G, E and F has one end connected to the lever and the other end to a lug on the dynamo. The casing has a slot and recessed part to hold the lever when the dynamo is idle. The dynamo is spring actuated normally to contact the wheel, the lever being operated to hold it out of contact.
Patent GB-1506076-A (GB)
Title: Chroman-4-ones
IPC: C07D311/22
Filed: 1976-08-05
Abstract: 1506076 2,3 - Dihydro - 4H - benzo[b]pyran- 4-ones BAYER AG 5 Aug 1976 [7 Aug 1975 27 Feb 1976 20 March 1976] 32672/76 Heading C2C The invention comprises compounds (X), (XI), (XII) and (XIII) and the preparation of compounds (I) by reacting a compound (II) with a carbonyl compound R<SP>1</SP>COCHR<SP>2</SP>R<SP>3</SP> (III) in the presence of an amine R<SP>9</SP>NHR<SP>10</SP> (IV) or with the corresponding enamine NR<SP>9</SP>R<SP>10</SP>-C(R<SP>1</SP>)=CR<SP>2</SP>R<SP>3</SP> (VIII) or animal CH(R<SP>2</SP>)(R<SP>3</SP>)CH(NR<SP>9</SP>R<SP>10</SP>) 2  (IX), wherein; in the above formulae R<SP>1</SP>-R<SP>4</SP> are hydrogen or optionally substituted alkyl, alkenyl, cycloalkyl, cycloalkenyl, aryl, aralkyl, alkoxycarbonyl, carboxyl or aminoalkyl, or R<SP>2</SP>-R<SP>4</SP> are amino or dialkylamino, or R<SP>1</SP> and R<SP>2</SP> can be joined to form a carbocyclic or heterocyclic ring; R<SP>5</SP>-R<SP>8</SP> are hydrogen, halogen, hydroxyl, nitro, cyano, carboxyl or optionally substituted alkyl, cycloalkyl, aryl, aralkyl, alkoxy, aralkoxy, aryloxy, alkoxycarbonyl, amino, alkylamino, dialkylamino or acylamino ; R<SP>9</SP> and R<SP>10</SP> are alkyl or may be joined to form, with the nitrogen atom, a ring; m is an integer of 4-12; n is an integer of 1-18; R<SP>19</SP> is hydrogen, amino, alkylamino or dialkylamino or a group -COOR<SP>20</SP> (where R<SP>20</SP> is hydrogen or alkyl) ; R<SP>21</SP> is hydrogen or C 1-18  alkyl; R<SP>22</SP> is optionally substituted aryl, aralkyl, alkoxycarbonyl or dialkylamino or a group -R<SP>24</SP>NR<SP>25</SP>R<SP>26</SP> or -COOR<SP>27</SP> (where R<SP>24</SP> is alkylene; and R<SP>25</SP>-R<SP>27</SP> are hydrogen or alkyl); R<SP>23</SP> is hydrogen or alkyl; R<SP>28</SP> is C 1-18  alkenyl or C 1-6  carboxyalkyl; R<SP>29</SP> is hydrogen or C 1-6  alkyl; R<SP>30</SP> is hydrogen or methyl; R<SP>31</SP> is hydroxyl, halogen or methyl; and R<SP>32</SP> and R<SP>33</SP> are hydrogen or methyl. Examples describe the preparation of inter alia, 2,5,7,8-tetromethyl- 6 - hydroxyl - 2 - (4<SP>1</SP>,8<SP>1</SP>,12<SP>1</SP> - trimethyltridecanyl) chroman - 4 - one (4 - keto - α - tocopherol) and 2,5,7,8 - tetramethyl - 6 - hydroxy - 2 - (4<SP>1</SP>,8<SP>1</SP>,12<SP>1</SP>- trimethyltrideca - 3<SP>1</SP>,7<SP>1</SP>,11<SP>1</SP> - trienyl)chroman- 4-one (4-keto-a-tocotrienol). The compounds of the invention are stated to have pharmaceutical (vitamin), herbicidal and antioxidant properties.
Patent GB-927753-A (GB)
Title: Improvements in or relating to infusion bags
IPC: B65D85/808
Filed: 1959-09-25
Abstract: 927,753. Tea &c. bags. F. & H. SOUTHERN AGENCY Ltd., and H. HOLTON. July 11, 1960 [Sept. 25, 1959], No. 32759/59. Class 94(1). A tea &c. bag is made from superposed plies of non-fibrous heat sealable plastic sheet material and is perforated so that water can enter the loaded bag. The bag may be made from polyethylene, high density polyethylene or unplasticised polyvinyl chloride, the thickness of the sheet being preferably 50/60 gauge, The perforations are of the order of 10/1000 inch in diameter and have an areal density of about 140 to the square inch. Specification 790,212 is referred to.
Patent GB-676995-A (GB)
Title: Improvements in foil-paper laminated wrapping material
IPC: B32B15/14
Filed: 1949-12-22
Abstract: 676,995. Compound sheet materials. EMPIRE ALUMINIUM CO., Ltd., BROWN, C. S., and BROWN, G. S. Oct. 20, 1950 [Dec. 22, 1949], No. 32803/49. Class 140. A laminated wrapping material consists of aluminium foil 2 affixed to paper 1 at areas 3 by adhesive and unattached to the paper along strips 4, thus forming ventilation ducts throughout the length and/or breadth of the sheet. Specifications 17908/15 and 300,035, [both in Class 140], are referred to.
Patent GB-1044321-A (GB)
Title: Improvements in or relating to machines for producing sheet or block of plastic, rubber or like material
Inventor: DAWSON PETER HAYWARD TRUSSLER
IPC: B29C44/28
Filed: 1961-09-13
Abstract: 1,044,321. Moulding foamable plastics. SINGER. COBBLE Ltd. Oct. 8, 1962 [Sept. 13, 1961], No. 32808/61. Heading B5A.  Foamable plastics, e.g. polyurethane rubber &c. is cast from transversely reciprocating dispenser 27 of a longitudinally and vertically adjustable mixing head 26 into a paper trough from paper roll 29 movable over longitudinally adjustable and variably inclined skid 22 followed by a horizontal conveyer 20 upon which the plastics is initially still fluid or semi-fluid. The foam sets to rectangular dimensions determined by a side travelling guide 33 and fixed side guide 34, both resiliently sprung, and an overhead guide comprising paper from roll 35 passing against resiliently mounted guide 37. The paper from roll 29 may be drawn through positively or by the tractive effort of conveyer 20.
Patent GB-1359774-A (GB)
Title: Cluster ball rack with ball deflector
IPC: A63D5/02
Filed: 1972-07-13
Abstract: 1359774 Bowling alley ball return rack BRUNSWICK CORP 13 July 1972 [29 Sept 1971] 32858/72 Heading A6D A bowling ball return rack comprises a support, a ball storage track 4 mounted thereon and substantially surrounding an island portion thereof and connected to a ball return rack 3, pedestal means 13 extending upwardly from said island portion supporting a bowler identification panel 12 and means 6 for directing a bowling ball entering the storage track 4 to a preselected side of said pedestal. As shown the means 6 comprises a solenoid operated vane, normally spring biassed to one side of the track 3 but moveable to the other side of the track by the solenoid through an electric circuit energised by a switch 16 operated by a ball 2 leaving one of a pair of adjacent pits. The electric circuit includes an adjustable time delay means to allow for the time taken for the ball 2 to travel from the switch 16, through accelerator 19, down the track 18 and up through the lift 20 to the track at 3.
Patent GB-342684-A (GB)
Title: Improvements in and relating to electrical heating panels
IPC: F24D13/02
Filed: 1929-10-30
Abstract: 342,684. Electric radiators. GRIERSON, R. and GRIERSON, Ltd., 4, Bloomsbury Place, London. Oct. 30, 1929, No. 32945. [Class 39 (iii).] In electrical heating-panels of the kind wherein a resistance B is enclosed within a metallic container A with micanite or other insulating-material b<1> interposed between the resistance and the radiating-surface a<3>, and micanite b<2> and a slab of heat-insulating material D between the resistance and a lid or cover a<1>, the lid is sealed to exclude air from the container. An aperture a<2> may be provided in the lid to enable air to be exhausted and the aperture then closed by sealing. The resistance B is in the form of a net of nickel-chrome or other wire, and the heat-insulating material consists of a slab of cork. In a modification the cork slab D is omitted from the container in order that it may be secured between the lid of the container and the surface to which it is fixed.