baber/WOPTO huggingface dataset:
Patent GB-867233-A (GB)
Title: Improvements in or relating to printed circuits incorporating high frequency coils
Inventor: MOTE HAROLD TREVOR
IPC: H01F17/00
Filed: 1957-11-07
Abstract: 867,233. Radio receiver arrangements. BRAYHEAD (ASCOT) Ltd. Nov. 7, 1958 [Nov. 7, 1957(2); April 11, 1958], Nos. 34751/57, 34752/57 and 11577/58. Class 40(5) [Also in Group XXXV] Tuning coils for television and other h.f. radio apparatus are formed by printing helical conducting tracks 8 (Fig. 2) on insulating wafer members 3, one or more of the coils being associated with a rotary wiper arm 14 by which its inductance can be preset to the desired value. The arm 14 may be slotted at 12 to allow radial adjustment. The arm 14 may be pivotally secured to wafer 9 by a screw or by an eyelet and may be soldered to the eyelet or to the coil when in the desired adjusted position. In a modification (Fig. 4) two inductively coupled coils are printed in appropriately overlapping relationship on opposite sides of wafer member 3. Tuning is effected by pivoted metal strips 41a, 42a mounted on the opposite sides of member 3 by bolts passing through slots in the strips to allow sliding as well as angular adjustment. Other coils 9 (Fig. 2) of cylindrical form and with adjustable cores 10 may be mounted on the wafers 3. The components on each wafer are connected to printed or other contact members 5a on the wafer edge and the wafers are mounted between rotatable circular plate members 4 (Fig. 1) to form a turret tuner. Alternatively the wafers may be mounted side by side in a stack (Fig. 3, not shown).
Patent GB-943734-A (GB)
Title: Tris(tetrahydrofurfuryl)phosphate, the preparation thereof and use thereof as a plasticizer
IPC: C07F9/655
Filed: 1962-09-12
Abstract: The invention comprises tris (tetrahydrofurfuryl) phosphate which may be used as a plasticizer (see Division C3).  It may be prepared by reacting tetrahydrofurfuryl alcohol with POCl3 in the presence of an acid acceptor, e.g. at 40-50 DEG C. in a solvent, or by reacting the alcohol with sodium metal and reacting the resulting alcoholate with POCl3.ALSO:Poly(vinyl alcohol) compositions are plasticized with tris(tetrahydrofurfuryl) phosphate (for preparation see Division C2). Generally about 50-100% hydrolysed poly(vinyl acetate) is used and about 20-40 parts of plasticizer per hundred parts of polymer.  The plasticizer may be added to an aqueous solution of the polymer and is particularly useful in the forming of packaging films.
Patent GB-1199854-A (GB)
Title: Improved Flower Vase
Inventor: MCKINNON KENNETH LEO
IPC: A47G7/07
Filed: 1968-07-22
Abstract: 1,199,854. Flower vases; flower holders. K. L. McKINNON. 22 July, 1968 [21 Aug., 1967], No. 34856/68. Heading A4U. A flower vase has an inner surface shaped to provide recesses 11, 13 to retain the ends of flower stems S. The recesses have an upwardly inclined wall from the base to the lower edge, may be tear-dropshaped or conical, and may have a flat base. Recesses near the mouth are utilised to support the ends of forked sticks by which the flower stems are supported, or the vase has a series of openings encircling the mouth 17 through which a flexible linear member of leather, wire etc. is laced to lie across the mouth. In a modification, having such a series of openings, the recesses are formed by annular ribs projecting from the inner surface of the vase.
Patent GB-779148-A (GB)
Title: Improvements in or relating to ventilating systems
Inventor: COOPER WILLIAM FREDERICK BENYO
IPC: F24F3/14
Filed: 1953-12-15
Abstract: 779,148. Electric measuring systems. OCEAN STEAM SHIP CO., Ltd. Dec. 13, 1954 [Dec. 15, 1953], No. 34868/53. Class 40 (1). [Also in Groups X and XII] In a method of comparing the relative humidities of two samples of air (see Group XII), one sample, e.g. atmospheric air, is drawn into a pipe 14, Fig. 1, and passed through a temperature equalizer 12 and a pipe 15 to an electrical humidity sensitive element 10, whilst another sample of air, e.g. air from an enclosed space, is drawn through pipes 17, 18 to the temperature equalizer 12 and through a pipe 19 to another electrical humidity sensitive element 11, a fan 13 exhausting both streams of air to the atmosphere through a pipe 16. Water traps 20, 23 are incorporated in the apparatus. Signals derived from the elements 10, 11 in accordance with the humidities of the two samples of air, are compared in a circuit, Fig. 2, wherein a stabilized alternating current supply across leads 30, 31 feeds two potential dividers, one comprising fixed resistors 38, 39 and the other a potentiometer 40 and a fixed resistor 41. As shown, a full-wave rectifier 42, a coil 43 in the humidity-sensitive element 10, and a common resistor 44, are connected between the common point of the resistors 38, 39 and the lead 30, and a similar circuit including a full-wave rectifier 45, a coil 46 of the humidity sensitive element 11, and the common resistor 44 is connected between the slider of the potentiometer 40 and the lead 30. The outputs of the rectifiers are connected in opposition through a centre zero indicating meter 50, in parallel with an adjustable sensitivity controlling resistor 51. One end of the common resistor 44 is connected to moving contacts 52, 53 of a double-pole multi-position switch. In operation initially a standard sample, e.g. atmospheric air is caused by operating the valve 24, Fig. 1, to pass through both elements 10 and 11 and the double-pole switch is moved to engage contacts 54, 55 which are connected respectively to the coils 43, 46. The potentiometer 40 is then adjusted until the meter 50 indicates zero. The doublepole switch is then moved to its second position where the coils 43, 46 are replaced by fixed resistors 58 and 59 respectively, the values of which are selected to correspond to a predetermined degree of difference in relative humidities, e.g. a difference corresponding to full-scale deflection of the meter 50 in one direction. The sensitivity control 51 is now operated until the meter 50 indicates the predetermined difference. The valve 24 is now operated to place the pipe 18 in communication with a second sample of air, e.g. air from a space to be ventilated, which is passed through the element 11, whereupon the double-pole switch is moved to its third position to reconnect the coils 43, 44 of the elements 10, 11 so that the meter will indicate the degree and direction of any difference between the relative humidifies of the two samples of air.
Patent GB-1450871-A (GB)
Title: Joist hangers
IPC: E04B1/26
Filed: 1974-08-08
Abstract: 1450871 Joist hangers D W WORDSWORTH E T ASTON and J R LOACH 8 Aug 1975 [8 Aug 1974] 34909/74 Heading E1W A joist hanger is formed in two parts 11, 12 so that the support shoe 12, which may be integrally formed in the manner disclosed in Specification 1431122, can be fixed to the bracket 11 in any one of a number of vertically displaced positions. The backwall of the shoe 12 and the vertical plate 14 of the bracket 11 are provided with complementary interlocking tongues and slots 20, 33 which transfer the load from the shoe to the bracket. The shoe and bracket are also provided with interlocking tabs 22, 35 the tab 22 of which may be deformed after hanging of the shoe on the bracket to prevent subsequent disengagement.
Patent GB-813369-A (GB)
Title: Improvements relating to machines for filling containers
IPC: B65B39/14
Filed: 1957-11-08
Abstract: 813,369. Filling and capsuling cartons. ANDERSON, R. F. Nov. 8, 1957 [Nov. 16, 1956]], No. 34945/57. Class 125(2). A machine for filling containers with liquid or semi-solid material includes a conveyer, a filler mechanism for filling containers on the conveyer, the filler mechanism comprising a rotatable horizontal shaft extending transversely to the conveyer, an outer cup-shaped valve member located above the conveyer and attached to the shaft, an inner valve member to which material is supplied through a conduit and driving means for the shaft, the inner member extending into the outer member and having a port on its underside and the outer member having a number of circumferentially spaced discharge passages which register in turn with the port and through which material is discharged into the containers as the outer member is rotated by the shaft. A central housing 27 is surrounded by a rotating spur wheel 21 which guides the cartons around a platform 31 and on to a discharge turn-table 26. Cartons are separated from a stack by worm gears at stations 22a and are swept by arms 191 between the projections 68 on wheel 21. Ice cream is poured into the cartons by filler 23a and syrup by filler 23b. A cap is taken from magazine 24 and lightly stamped on at 25a, to be fully sealed at 256. The filler 23a consists of an outer cap-shaped member 82 pierced by orifices 84 and rotated by shaft 76. An inner member 89 seats within member 82 and is provided with a single orifice 91 on the underside. Ice cream is pumped through conduit 98 to the interior of member 89 and, when orifice 91 and an orifice 84 registers, is discharged into a carton. Removable nozzles 103 are used in filler 23a but in filler 23b for syrup are dispensed with to give a sharp flow cut-off. On passing the cap magazine 24, a flange 122 on projection 68 of wheel 21 engages the latest cap of the magazine and the cap is guided by side arms and a downward pressing leaf-spring, Figs. 15 and 16, (not shown), into the carton with the usual removal tab overlying an anvil 123 on projection 68. The capping heads 143, Fig. 6, are each carried on a shaft 131 carried by shaft rotating arms 132. At the first capping station 25a the head is adjusted so as lightly to stamp the cap into the carton thus bending the removal tab and permitting air to escape from the carton. At the second station 25b the cap is stamped firmly into position. A common drive for the wheel 21 and capping and filling heads is described, while the worm gears at station 22a are driven by a separate power take-off from the motor. The housing is adjustable in relation to the platform 31.
Patent GB-487485-A (GB)
Title: Directional antenna system
Filed: 1937-12-17
Abstract: 487,485. Directive wireless signalling. STANDARD TELEPHONES & CABLES, Ltd. Dec. 17, 1937, No. 35047. Convention date, Dec. 31, 1936. [Class 40 (v)] An aerial system comprising two spaced antennae, such as a radiator and reflector, is made strictly unidirectional for two or more different wavelengths, even though the spacing between the two antennae is not that normally necessary to cut-off all back-radiation. For this purpose the phase of reflection near the ends of one or both of the antennae is so modified that the waves which usually give rise to back-radiation are made to produce equal and opposite fields which mutually cancel out. As shown in Fig. 1, the two diverging aerials A, B are spaced apart an odd number of quarter-wavelengths for one working frequency, say F. The out-of-phase conditions which this implies for a second frequency, say F1, are then compensated by attaching auxiliary wires 207, 210, of calculated length, at points approximately a quarter-wavelength away from the free ends of the " forward " aerial A. Their effect is to nullify the back-radiation from the second or reflecting aerial B. Similar auxiliary wires may be attached to both aerials, so that the required phase-adjustment is produced partly by advancement and partly by retardation. When the difference between the two working wavelengths is small, both the aerial terminations and the auxiliary compensating wires may be reactively loaded, as shown in Fig. 3.
Patent GB-1123426-A (GB)
Title: Band saw blade
IPC: B23D61/12
Filed: 1965-08-17
Abstract: 1,123,426. Sawing. I. AMADA. 17 Aug., 1965, No. 35206/65. Heading B5L. A band saw blade has portions B harder than portions A, the portions including a plurality of teeth, whereby, in use, the parts A wear to permit greater efficiency of cutting of the working part B. The difference in hardness is effected by heat treatment. The edge of the blade is formed with twists to promote wear of the guide parts A when operating on certain materials.
Patent GB-949250-A (GB)
Title: Improved locking means for a pivoted selector lever
Inventor: BENNETT JOHN MICHAEL GILL
IPC: G05G5/02
Filed: 1961-09-29
Abstract: 949,250. Locking means for levers. SHORT BROS. & HARLAND Ltd. Aug. 20, 1962 [Sept. 29, 1961], No. 35342/61. Heading F2E. Selector apparatus e.g. for operating an aircraft wing flap, comprises a lever 10 adapted for pivotal movement into any one of a range of equiangularly spaced positions 111 in a gate 11, means 106 biasing the lever 10 into each notch 111, and a selector member 16 mounted on the pivot 12 of the lever 10 with capability of movement from a neutral position through an angle equal to the angular spacing of the notches 111. One of the slots 162 in the selector member is engaged in the latter's neutral position by a pin 19 on the lever 10 when the lever is moved out of one notch 111 preparatory to movement ot the next notch. The pin 19 moves out of the slot 162 only when the lever is in the next notch and means 17 restores the selector member to its neutral position. Due to a fixed peg 18 co-operating with an arcuate slot 161 in the selector member movement of the selector member, and thus the lever 10, is restricted to an angular distance from the selector member's neutral position which is equal to the angular gracing of the notches 111. Electrical switches may be associated with the several lever positions.
Patent GB-767300-A (GB)
Title: Improvements in cutting fluids for use in machining metals
Inventor: POWELL DONALD
IPC: C10M173/00
Filed: 1953-12-18
Abstract: An aqueous emulsion for use as a cutting fluid particularly in the machining of titanium comprises casein, a fatty oil with good lubricating properties, an emulsifying agent, and a stabilizing agent.  The fatty oil may be castor oil, although coconut oil may wholly replace it, and lanoline may replace it in part.  The preferred emulsifying agent is triethanolamine oleate and the stabilizing agent is preferably glycerol.  A non-coagulating preservative such as sodium benzoate, potassium benzoate or ammonium benzoate may also be added.  A preferred composition consists of castor oil 20-50 grams, casein and glycerol each in approximately equal weight to the castor oil, triethanolamine oleate in approximately one-fifth the weight of castor oil, ammonium benzoate up to 50 grams and water to make 1 litre.
Patent GB-1471409-A (GB)
Title: Cleaning of textile carding machines
IPC: D01G15/82
Filed: 1973-07-25
Abstract: 1471409 Cleaning carding machines PLATT SACO LOWELL Ltd 24 July 1974 [25 July 1973] 35444/73 Heading D1F A textile carding machine has pneumatic waste removal apparatus comprising support means 5 disposed below the carding elements on which the waste is deposited, a plurality of nozzles 17 above the support and air supply control means whereby pressurized air is supplied in turn cyclicly to the nozzles 17 to transport the waste to a waste collection zone 18. The cyclic pattern produces a wave motion toward the collection zone 18. Different nozzles may be arranged to have different air flow velocities. In an alternative embodiment the collection zone is disposed at one end. A suitable flow directing valve is described.
Patent GB-633707-A (GB)
Title: Improvements in or relating to copying telegraph receivers
IPC: H04L21/04
Filed: 1946-11-30
Abstract: 633,707. Copying telegraphy. STANDARD TELEPHONES & CABLES, Ltd., and TERRY, V. J. Nov. 30, 1946, No. 35538. [Class 40 (iii)] A copying telegraph receiver comprises a tape moved between one or more blade electrodes and two or more co-operating rotary helical electrodes insulated from one another and means controlled by one or more sources of telegraph signals for supplying writing currents to each of the helical electrodes so as to mark the tape in two or more separate places. Incoming radio signals after demodulation and rectification are applied to the grids of three valves 24 ... 26 which are thereby biassed to cut-off. The resulting rise in anode potentials is applied via brushes 16 ... 18 and slip rings 10 ... 12 to three separate metallic helices 7 ... 9 on an insulated drum 5 which co-operate with a blade electrode 1 to produce one complete and two partial reproductions as the drum 5 rotates and the paper 4 is drawn forward by rollers 19, 20 in the usual way. The recording may be by electro-chemical action or by burning of the paper 4. The helices are preferably of stainless steel or iridium, or of brass tipped with platinumiridium alloy or plated with rhodium and may be moulded into the insulating cylinder. The recording cylinder 5 may be mounted on its driving shaft 6 by means of a three-pin plug- and-socket arrangement for easy replacement. In Fig. 2 (not shown), two helices are used and are connected in series with each other and with a gating valve to the grid of which the incoming rectified signals are applied. In Fig. 3 (not shown), the two helices are again connected in series but the gating valve is now connected across the two. If the recorder is used with a usual radio-telegraph receiver which is designed to produce a sharp distinction between signal and no signal, and the control valve is arranged for complete cut-off, then black or white tones only are produced. If the radio receiver has A.G.C. incorporated and a non-linear resistance element is connected across the transmission path in the recorder then intermediate tones are also produced.
Patent GB-453554-A (GB)
Title: Improvements in or relating to pads for the shoulders of wearing apparel
IPC: A41D27/26
Filed: 1935-12-24
Abstract: 453,554. Shoulder pads. FRAIS, S., 6T, Bickenhall Mansions, Baker Street, London. Dec. 24, 1935, No. 35654. Addition to 449,336. Drawings to Specification. [Class 141] The shoulder pad described in the parent Specification is provided with a rebatted edge, lip, recess, groove or grooves for ease in sewing the pad in position and to assist in retaining its shape. The grooves or recesses may form a continuous path at or near the edge of the pad, or a series of space transverse grooves may be provided in the pad. The rebatted or recessed parts may be filled in with felt or other suitable material.
Patent GB-1082649-A (GB)
Title: Improvements in and relating to brushes for power-driven rotary tooth brushes
IPC: A61C17/24
Filed: 1964-09-01
Abstract: 1,082,649. Toothbrushes. PHILIPS' GLOEILAMPENFABRIEKEN, N.V. Sept. 1, 1964 [Sept. 4, 1963], No. 35735/64. Heading A4K. A brush for a power driven rotary toothbrush comprises a hub 1 and a ring of elongate flexible bristles 13, which are formed integrally with the hub 1 from a plastics material and project outwardly therefrom in a common plane. The bristles 13 are of flat triangular shape. When assembled in a toothbrush head the brushes have their hubs 1 mounted on parallel shafts (5, 6) rotated in opposite direction by a shaft (10) via gear wheels (7, 8, 12). The shaft (10) passes through a hollow brush handle (11).
Patent GB-913326-A (GB)
Title: Improved magnetic transducer assembly
IPC: G11B5/53
Filed: 1961-10-04
Abstract: 913,326. Magnetic recording- &c. heads. AMPEX CORPORATION. Oct. 4, 1961 [Nov. 21, 1960], No. 35818/61. Class 40 (2). A magnetic head with renewable pole-shoes has a core assembly 11 moulded into a holder 23 together with a copper gap-piece 21, which provides azimuthal location in the holder and, by virtue of induced eddy currents, directs magnetic flux into a pair of pole-shoes 13, abutted to form a transducing gap 39 and moulded into a support 25 held interchangeably against the holder 23 with a thin insulator 49 preventing electrical contact therebetween. The head assemblies are intended for mounting in a rotary drum (Fig. 6, not shown).
Patent GB-1180704-A (GB)
Title: Improvements in or relating to Polytetrafluoroethylene Coatings on Metallic Bases
Inventor: AHARONI SHAUL MOSHE
IPC: C09D127/18
Filed: 1968-07-26
Abstract: 1,180,704. Cooking vessels. NATIONAL PRESTO INDUSTRIES Inc. 26 July, 1968, No. 35895/68. Heading A4A. [Also in Division B2] A cooking vessel comprises a metallic base coated with a first layer comprising a mixture of polytetrafluoroethylene, finely divided non-spherical particles of metal and finely divided particles of a metal oxide, a metal carbide, or mixtures thereof, and then a second layer consisting essentially of P.T.F.E. The non-spherical particles of metal may have an average size of about 20-12 microns The first laver may he formed by first baking on to the metallic base, the mixture, and then baking on to the first layer the P.T.F.E. to form the second layer. The base which may be of, for example, aluminium, aluminium alloy, iron, steel, copper, brass, may be first cleaned by blasting with grit, sand or oxide, or etched. The non-spherical particles may be of aluminium, iron, steel, copper, brass, chromium or nickel. The oxide or carbide may be of aluminium, titanium, zirconium, silicon, chromium and nickel. The first layer may be formed by baking on the metallic base a mixture comprising 50-60 volumes of aluminium oxide powder, 50- 40 volumes of aluminium powder, the two together making up 100 volumes, and 100 volumes of polytetrafluoroethylene emulsion that contains 50 per cent by weight of solid polytetrafluoroethylene resin. The first layer may be about 1 mil and the second layer about 0.4 mil in thickness. The coating provides a surface portion which is characterized by a high degree of abrasion resistance, scratch resistance and resistance to sticking thereto of foods in contact therewith during cooking.
Patent GB-1523154-A (GB)
Title: Planting machine for potatoes and other tubers
IPC: A01C9/02
Filed: 1975-09-01
Abstract: 1523154 Planting tubers SOC JEANTIL & CIE 1 Sept 1975 35977/75 Heading AID Potatoes are conveyed from a hopper 12 by a pair of conveyor belts 10, caused to move one by one by a vaned rotating wheel 14, fall one at a time into a bifurcated collector cup 50 which then halts the conveyor belt 10, and are taken up by the interdigitating fingers of bifurcated carrier cups which deposit the potatoes into a furrow opened by a share 19. In Figs. 1 and 2, the collector cup 50 is pivoted to a weight-responsive switch 52 controlling the drive to the conveyor belts 10, and the carrier cups 54 are carried by a rotating wheel 56. Panels 21 are reciprocated out-of-phase within the hopper 12 to assist in forming a single line of potatoes, and the vanes 36 of the rotating wheel 14 are caused to extend and retract as the wheel 14 rotates. The ground wheels 2 (or an auxiliary motor) drive the vaned wheel 14  and the cup wheel 56 continuously by means of chains-and-sprockets, and drive the conveyor belts 10 intermittently by means of chain-and-sprockets and a clutch 9 controlled by the switch 52. In Fig. 10, detection of a potato in a fixed collector cup 5 is by a photoelectric cell 8, and the carrier cups 6 are carried by an endless belt 26. The vanes 36 of the wheel 14 are fixed by flexible. The connection 20 (Fig. 1) to a tractor prevents tilting of the planter. A number of planters may be mounted side-by-side in a frame for multi-row planting.