baber/WOPTO huggingface dataset:
Patent GB-504391-A (GB)
Title: Improvements in or relating to mowing machines
IPC: A01D34/04
Filed: 1937-10-27
Abstract: 504,391. Mowing-machines. JAMES, C. J. Oct. 27, 1937, No. 29298. [Class 6 (iii)] [Also in Group XXXI] A motor-driven, wheeled vehicle of the type in which the vehicle is driven from the motor crank-shaft which extends rearwardly from the motor 1 has an extension 3 arranged at the forward end of the ahaft from which extension the reciprocating knife bar of a mowing- machine, attached to the front of the vehicle, is driven. The extension shaft 3 drives, through a clutch 7, a sprocket wheel 3a actuating, through a chain and a co-operating sprocket wheel, a countershaft 5 mounted on the chassis and on a frame or bracket 4 secured, preferably detachably, to the front of the chassis. The countershaft 5 carries a crank disc 13 by which the connecting rod 14 to the knife bar is actuated. The shoe 8 of the mower has a sleeve connection with a transverse bar 9 attached by a pivot 10 to the far side of the bracket and bent back to form a stay bar 12. The mower may be rocked about the bar 9 to adjust the height of the cut by a rod 15 pivoted to an arm 15a projecting from the shoe. The mower may be lifted as a whole about the pivot 10 by a hand lever 11 connected by adjustable links 11a to the shoe.
Patent GB-737067-A (GB)
Title: Phase rotator
IPC: H03H11/20
Filed: 1953-10-23
Abstract: 737,067. Phase-shifting. BENDIX AVIATION CORPORATION. Oct. 23, 1953 [Oct. 30, 1952], No. 29383/53. Class 38 (2). A phase-shifting arrangement comprises a resistor 6 with ends connected together to an output terminal, voltages of equal magnitude and frequency but of opposite phase being supplied respectively to the resistor ends through resistor 4 and capacitor 5 and to a moving contact 11 on resistor 6, the phases of the two voltages being reversed as the contact passes the midpoint of the resistor. The antiphase voltages are developed at the anode and cathode of triode 1, having anode and cathode resistors 3, 2 of equal value, the grid being energized from a tapping on resistor 9 connected between one end of the secondary winding of transformer 7 and the centre point of that winding which is connected to the earthed, second output terminal. As the contact on resistor 6 is moved from one end to its centre, the output voltage changes in phase through a little less than 180 degrees. As the contact passes the centre, it is arranged that switch 8 connects resistor 9 to the other transformer output terminal, so that as the contact completes its travel to the other end of resistor 6, the output voltage continues to change until it has turned through somewhat less than 360‹ C. The moving contact 11 may be on a shaft 10 carrying a stepped cam 12 which operates a microswitch 8 at the midpoint of contact travel. In a modification, the output terminal and the condenser 5 are connected to the midpoint of resistor 6, Fig. 3 (not shown). The moving contact 11 may directly operate a toggle switch 8.
Patent GB-489692-A (GB)
Title: Process for the manufacture of í¸ 1:2-unsaturated ketones of the cyclopentano-polyhydrophenanthrene series
IPC: C07J9/00
Filed: 1936-10-29
Abstract: D  1.2-Unsaturated compounds of the cyclopentanopolyhydro-phenanthrene series are prepared by the halogenation and subsequent splitting off of halogen hydride from ketones of the general formula <FORM:0489692/IV/1> where R indicates a saturated or unsaturated oxygen-free hydrocarbon residue and also hydrogen, or hydrogen, or a hydrocarbon radical and a hydroxyl group, or oxygen, and in which the rings A and B are linked together in the trans-position. Compounds mentioned as starting materials include the sterols, the male sex hormones of the androstan series, their isomers and substitution products.  The preferred halogen is bromine which is introduced in the usual manner.  For the removal of halogen hydride the preferred reagent is a salt of an organic acid such as potassium acetate.  In cases where there is a hydrocarbon radical at position 17, and it is desired to remove such a radical, this may be carried out by an oxidation treatment such as with chromium trioxide, or a degradation method such as the Grignard degradation.  In examples: (1) a glacial acetic acid solution of cholestanone is treated with bromine in the presence of a small amount of hydrobromic acid.  The 2-bromo-cholestanone after purification by crystallization from chloroform-glacial acetic acid is heated in a bomb tube with 21 per cent potassium acetate-glacial acetic acid solution for five hours. The product is precipitated with water, extracted with ether and recrystallized from dilute acetone; (2) a glacial acetic acid solution of androstandione is brominated as in example (1) and the 2-bromo-androstandione decomposed as before to yield D 1.2-androstendione, which is isolated by high vacuum distillation of the neutral portions.  On boiling with an alcoholic solution of hydroxylamine acetate, the androstendione is converted into its oxime; (3) a glacial acetic acid solution of androstanol-(17)-one-(3) is brominated as described in example (1) to give 2-bromo-androstanol-(17)-one-(3) which is decomposed as above to yield D  1.2-androstenol-(17)-one-(3).  If desired the 2-bromo-androstenol-(17)-one-(3).  If desired, the 2-bromoandrostanol-(17)-one-(3) can be treated with chromium trioxide to give 2-bromo-androstandione identical with that obtained according to example (2).  This is then further treated as described in example (2).  A sample has been furnished under Sect. 2 (5) of D 1.2-cholestenone-3 prepared from 2-bromocholestanone by dissolving and boiling in anhydrous pyridine to form 2-(bromo-pyridyl)-cholestanone-3 which is converted by thermal treatment into the cholestenone.  Berichte 1935, Vol. 68, page 1850 is referred to.  Reference has been directed by the Comptroller to Specification 461,322.
Patent GB-441451-A (GB)
Title: Improvements in or relating to electrical signalling systems
IPC: G08C15/12
Filed: 1934-05-24
Abstract: 441,451. Party-line systems. BRITISH SANGAMO CO., Ltd., and ROGERS, S. B., Cambridge Arterial Road, Enfield, Middlesex. May 24, 1934, No. 29566/35. Divided out of 441,213. Drawings to Specification. [Class 40 (iv)] In a system for establishing audible communication between stations and for listening in at a central station to audible communications from a number of stations, time controlled means such as motor-driven switches are provided at the different stations to connect sound transmitting apparatus to a common line at the same or different predetermined times. The system described is identical with that described with reference to Figs. 9 and 10 of Specification 441,213.
Patent GB-820915-A (GB)
Title: Improvements in or relating to the manufacture of thermionic cathodes
Inventor: HALL ERIC STANLEY
IPC: H01J9/04
Filed: 1957-09-20
Abstract: 820,915. Cathode materials and processing. MULLARD Ltd. May 5, 1958 [Sept. 20, 1957], No. 29650/57. Class 39(1). A cathode is provided with an alkaline earth metal carbonate coating by making a suspension of the carbonate in a binder solution, forming the suspension into a layer, drying said layer to produce a sheet or strip, compressing, and then adhering the sheet to the cathode body. A suitable resin may be used as the adherent, or alternatively the cathode may be wetted with a binder for the solvent, and then brought into contact with the sheet so that the latter wraps itself around the cathode. Suitable organic materials for constituting the binder, and the wetting solvent, are given. The layer of suspension may be formed by spreading over a glass plate, or a spinning disc, or alternatively by extrusion. The layer may be compressed between flat surfaces or between rollers, to a final thickness of about 50 microns. The carbonates may have a loading of powdered nickel, or other specified metals. Two specific examples are given. Specification 717,231 is referred to.
Patent GB-1167818-A (GB)
Title: Improvements in or relating to Amplitude Modulating Circuit Arrangements.
IPC: H03C1/22
Filed: 1968-06-21
Abstract: 1,167,818. Amplitude modulation. TELEFUNKEN PATENTVERWERTUNGS G.m.b.H. 21 June, 1968 [18 July, 1967], No. 29696/68. Heading H3R. In an amplitude modulator comprising an electron discharge tube with modulating lowfrequency signals applied to the anode and high-frequency carrier oscillations applied to the control grid and having the control grid or a further grid positively biased either continuously or during part only of the high-frequency drive cycle, and in which the control grid or further grid is connected to the cathode through an impedance including a capacitive conductance, the modulating frequency drop across said impedance being utilized to provide auxiliary grid modulation, the said capacitive conductance forms part of a capacitative voltage divider connected between the cathode and modulating signal input circuit to the anode and which is so dimensioned as to provide at least partial compensation for the weakening of the higher modulation frequencies which would otherwise be caused by said capacitive conductance. Valve 1 is anode modulated by low-frequency signals which are applied, together with the D.C. anode voltage to the anode from terminal 5 via H.F. choke 10. H.F. carrier oscillations are applied via terminal 15 to the grid, a grid bias being obtained by means of grid leak 16, and amplitude modulated signals are derived from tuned circuit 2, 3 in the anode circuit. The valve 1 also comprises a screengrid which derives a positive potential from terminal 6 via L.F. choke 14, whereby additional modulation of the H.F. carrier occurs. The screen-grid is decoupled for carrier frequency by means of capacitor 13; the loss in high frequencies in the modulation caused by this capacitor is compensated by means of a further capacitor 12 connected between screen-grid and the terminal 5 by which the modulating signals are applied. Capacitor 12 also provides anode decoupling at carrier frequency which permits of the omission of a decoupling capacitor 11.
Patent GB-1094260-A (GB)
Title: Vehicle headlight signal system
IPC: B60Q1/14
Filed: 1965-07-13
Abstract: 1,094,260. Control circuits for vehicle headlights. ESSEX WIRE CORPORATION. July 13, 1965 [July 31, 1964], No. 29730/65. Heading H2H. [Also in Division G4] The high beam filaments BR1, BR2 of vehicle headlamps 10-13 may be arbitrarily flashed during the day or night by operation of a switch 25, irrespective of the positions of a main switch 19 and a dimmer switch 22. During daylight and at night with switch 22 in the low beam position, closure of switch 25 energizes the filaments BR2 through a relay 28. With switch 22 in the high beam position closure of switch 25 deenergizes the filaments BR1 and leaves the filaments BR2 alight. In each case closure of the switch 25 energizes a pilot light 36 to full brilliance to indicate the flashing action. In a modification using two relays and different circuit connections to the lamps, Fig. 2 (not shown), the filaments BR2 are energized for flashing during daylight and low beam night conditions as before, and are de-energized for flashing when switch 22 is in the high beam position.
Patent GB-384406-A (GB)
Title: Improvements in or relating to stripper fingers for flat work ironers
IPC: D06F67/06
Filed: 1931-10-27
Abstract: 384,406. Ironing-machines. HAMILTON, C. E., 6351, Longview Avenue, Hollywood, California, U.S.A. Oct. 27, 1931, No. 29807. [Class 138 (ii).] A stripper finger for flat work ironers of the chest or cylinder type comprises a resilient strip 15 rigidly secured to a bar 17 and provided with a hinged tap 16 which is pressed against the roller 13 and collapses when it encounters an obstruction. The strip 15 is continued beyond the hinge 27 to form a stop 19. To prevent a tooready collapse of the finger, flexible ears 22 extend from the sides of the tap 16 and are provided with projections 22. Wings 20 with rounded edges are also provided at the outer end of the tap 16.
Patent GB-737169-A (GB)
Title: Improvements in and relating to visible index devices
IPC: A47B63/02
Filed: 1951-12-20
Abstract: 737,169. Filing papers. NAGY, L. July 10, 1952 [Dec. 20, 1951], No. 29821/51. Addition to 686,586. Class 146(1). The record card holder described in the parent Specification is modified by forming the spacing strip as an integral part of the holder by folding over one edge of the holder sheet in reverse folds 1, 2. The other edge is folded over to form a strip 4 to which is applied a socket strip of springy material, which may be transparent, in the form of three bands 6, 7, 8, strip 4 being sheathed into the fold between bands 7, 8. A title insert slip is folded longitudinally into two strips and folded over the bottom edge of the holder, the strip folded over the front of the holder being punched so that should the record card be missing, the holder itself which is of different colour is visible through the hole. The holders are assembled on a tray having downwardly inclined surfaces 13, 14, of the same size as the holders towards a horizontal centre portion 15 and are secured by a bar which is passed through slots 16, 17, of the inclined surfaces and slots 5 in the holders. An expanding box for stacking several trays may be assembled from interlocking grooved, morticed, &c., sections.
Patent GB-1144487-A (GB)
Title: A swimming pool heater
IPC: F24H1/14
Filed: 1966-07-04
Abstract: 1,144,487. Tubular water heaters. PUREX CORP. Ltd. 4 July, 1966 [26 July, 1965], No. 29850/66. Heading F4A. A heater for heating water from a swimming pool comprises a housing containing gas burners and, mounted above these, an array of finned tubular water heating elements 2. The elements 2 which are in the form of an inner copper inlet tube 17 surrounded by a concentric outer finned copper tube 20 extend between a header casting 7 which defines inlet and outlet chambers 13, 14 respectively, at one end of the housing (10), Fig. 1 (not shown), and brackets 3 mounted at the other end of the housing, on which the ends 19 of elements 2 rest. Water from chamber 13 enters inlet 16 of inlet section 42 of each element 2, flows through inner tube 17, reverses in cardiod chamber 18, and flows back through outer tube 20 to exit through aperture 55 past ribs 47 of outlet section 41, into outlet chamber 14. The sections 41, 42 and the front face 37 of housing (10) are connected to the header casting 7 by 0-ring seals 43, 51, 44 to prevent water leakage.
Patent GB-953279-A (GB)
Title: A carton
Inventor: COTE RAYMOND ALBERT
IPC: B65D71/00
Filed: 1962-08-03
Abstract: 953,279. Can-carrying cartons. CONTAINER CORPORATION OF AMERICA. Aug. 3, 1962, No. 29881/62. Heading B8P. A can-carrying carton is preferably made from a single blank of paperboard and comprises handle forming panels 5, 5a, top panels 6, 6a, sides 7, bottom panels 8 and can chime engaging strips 13, 15 attached thereto. The blank is converted into a flat-form carton by gluing together handle panels 5, 5a and binding flaps 21, 23 hinged to top panel 6a over top panel 6 and gluing them thereto. The carton is erected by gluing together strips 13 (see Fig. 1) either before insertion of the cans or after wrapping the carton around them. The strips 15 which are narrower than strips 13 are folded over to lie substantially in face to face contact with strips 13 and retain in this position the lower chimes of the cans. Movement of the cans longitudinally of the carton is prevented by flaps 26 in the top panels and flaps 28 in the bottom panels. These flaps which hinge about lines 28 are arranged to fold inwardly and engage the chimes of cans at the ends of each row. A method of locating and marking out flaps 26, 28 is described.
Patent GB-750225-A (GB)
Title: Improvements in and relating to television cameras
Inventor: GOURIET GEOFFREY GEORGE
IPC: H01J31/38
Filed: 1952-11-26
Abstract: 750,225. Television pick-up tubes. BRITISH BROADCASTING CORPORATION. Dec. 1, 1953 [Nov. 26, 1952; Dec. 13, 1952], Nos. 29981/52 and 31011/53. Divided out of 750,227. Class 39 (1). [Also in Group XL (c)] In a television camera tube of the CPS type the output signal from the target 16 is fed to the control electrode 13 so as to vary the beam current, above a given level of voltage, in the same sense. The beam current is automatically increased to take account of highlights in the scene. The given level of voltage may be the level representative of black in the image, or it may be just below the level at which instability would normally occur with a beam current at a value for optimum focus. The camera tube may be an image orthicon with the output derived from an electron multiplier which receives electrons returning from the target. Distortions due to variations in electron emission and in the potentials of the accelerating and decelerating electrodes are also reduced in the arrangement.
Patent GB-1084845-A (GB)
Title: Knockdown containers
IPC: B65D88/52
Filed: 1966-07-05
Abstract: 1,084,845. Knockdown container. E. P. CAHILL. July 5, 1966, No. 30171/66. Heading B8P. A knockdown container is formed of a number of panels connected by interlocking male and female members attached to abutting edges, and support blocks 14 on the bottom extending beyond the end edges to support the end panels 16, 18 to obscure the end edges of the bottom panel. Fig. 1 shows four containers abutted and connected together by coupling members 40, 41 engaging male coupling members on panel edges, the two top containers having curved sliding lids 28. The coupling members are extruded metal, e.g. Al or Al alloy, strips, and the panels are honeycomb expanded metal structures sandwiched between metal or plastics skins.
Patent GB-831253-A (GB)
Title: Improvements in or relating to measuring arrangements for use in the charging or discharging of skips in mine shaft skip-winding installations
IPC: B65G47/00
Filed: 1957-09-26
Abstract: 831,253. Weighing apparatus. SKIP COMPAGNIE G.m.b.H. Sept. 26, 1957 [Sept. 26, 1956], No. 30280/57. Addition to 742,952. Class 143 The pressure responsive cells of the apparatus described in the parent Specification are replaced by cells 8a, 8b, which respond to the pressure exerted by the inclined bin 3 in a direction perpendicular to the bottom of the bin, and the bin is prevented from sliding by connecting it to the supporting surface 17 by hinges 9a-9c. In a modification (Fig. 3, not shown) the bin is supported on four symmetrically arranged cells two of which form a reserve pair which are used when the other pair fail to operate, and the bin is connected to surface 17 by links 14 (Fig. 5) or by rollers 13 (Fig. 4) engaging abutments 12.
Patent GB-362587-A (GB)
Title: Apparatus for use in playing a table-game simulating golf
IPC: A63F3/00
Filed: 1930-10-09
Abstract: 362,587. Board games. SCHOFIELD, H. U., 18A, Shepherds Way, Rickmansworth, Hertfordshire. Oct. 9, 1930, No. 30281. [Class 132 (ii).] Apparatus for playing a table game simulating golf comprises a series of boards or cards each having marked or moulded upon it a representation of a different golf hole, markers being moved over the boards in accordance with results given by a chance apparatus consisting of a number of discs which are each in turn spun beneath an adjustable pointer. The boards may be arranged to fold together in book or in " concertina " form. A disc b, Fig. 2, is provided for each board, the discs being placed on a rotatable table above which is fixed a pointer e having a radially adjustable part g. The discs have a number of annular areas A, B, &c., the pointer being set to indicate against any area as desired. The boards, Fig. 1, are provided with corresponding areas and also with numbered positions on which markers in the form of miniature balls, Fig. 4, are placed.
Patent GB-236819-A (GB)
Title: Improvements in partitions for filing cabinets and the like
IPC: A47B57/08
Filed: 1924-12-17
Abstract: 236,819. Borts, A. J. Dec. 17, 1924. Partitioned boxes.-Partitions or shelves for cabinets and other receptacles are frictionally held in guide slots by forming the plate 6, constituting the partition or shelf, with an outstanding rib or ribs 9 co-operating with one wall of the guide slot to press the plate against the other wall.
Patent GB-1482283-A (GB)
Title: Liquid heater
IPC: F28F3/08
Filed: 1974-07-08
Abstract: 1482283 Evaporator EDUARD AHLBORN AG and HENRY BALFOUR & CO Ltd 8 July 1974 [9 July 1973] 30308/74 Heading B1B An evaporator (e.g. for producing condensed milk) comprises evaporator (P1) and heater (P2) plates arranged in an alternating sequence in tandem with gaskets (5) therebetween to provide heating or product channels between adjacent plates and the plates having aligned apertures providing an inlet (3, 3a) and an outlet (4, 4a) for heating medium, a product inlet aperture (1, 1a) for the product to be evaporated, and an outlet (2, 2a) for the mixture consisting of concentrated liquid and vapors, each product inlet aperture of the evaporator plate having an arcuate edge along which an arcuate gasket (6) extends and each evaporator plate for the product having a distribution system comprising a series of orifices (6a-Fig. 2) disposed angularly around the arcuate gasket, and a distribution zone on the plate adjacent the arcuate edge and formed by a series of upstanding mutually divergent guides (7) on the plate providing a flow channel between each adjacent pair of guides, each orifice being disposed relative to a flow channel whereby the angularly disposed orifices cooperate with the flow channels to produce a uniformly distributed film of product flowing from the distribution zone.
Patent GB-1448113-A (GB)
Title: Method and apparatus for automatic angling on fishing vessels
IPC: A01K91/06
Filed: 1973-06-26
Abstract: 1448113 Automatic angling T KOBAYASHI 26 June 1973 30312/73 Heading A1A Apparatus for automatic angling on a fishing vessel comprises fluid operated elements which provide for a limited vertical reciprocation whilst angling is being carried out with the rod held substantially level, a lifting of the rod once a fish hooking signal has been detected, an upward acceleration of the rod once the fish is clear of the water, a vertical shaking of the rod, when in its upright position above the ship to dislodge the fish if it has not already been so, and lowering of the rod for commencement of the next cycle. The operation is controlled by cams 7-9, Fig. 9, which are fixed upon a sleeve 6 fixed on a rotatable shaft 5 to which the rod 2, Fig. 5, is fitted via holder 4. The position of the cams with respect to the air outlet 30 Fig. 6 of their associated air jet formers 24-27 determines whether the air flows to exit or is reversed through respective lines 29 to associated flipflops 35-38 Fig. 1. These control air passage to valves 21-23, Fig. 2, which themselves control passage of hydraulic fluid to the sides of pistons 13, 14, 18. Racked piston rods 15, 19 mesh with a gear 10, coaxially mounted on the shaft 5 and determine the movement of the rod. The angling cycle is initiated by closing push button valve 57, Fig. 1, to lower the rod. The hooked fish causes selector valve 3 to close and air to pass from supply 56 to OR-NOR element 39 and flip-flop 35. Supplemented with air from the supply 47 of amplifier 40, it then passes to terminal 59 which operates valve 21 to allow raising of the rod. This causes cam 8 to close its associated air jet former outlet, after the fish leaves the water and accelerate the rod via operation of piston rod 10. The positioning of cams 7, 9 effect the remaining stages of the operation, including the limited vertical reciprocation of the rod prior to hooking the fish.