baber/WOPTO huggingface dataset:
Patent GB-970089-A (GB)
Title: Wiping contact rotary electric switch
Inventor: MASON HOWARD FISHER
IPC: H01H19/56
Filed: 1962-06-07
Abstract: 970,089. Mechanical switches, without quick action. ANSUL CO. June 7, 1962, No. 22051/62. Heading H2B. The stator 26 of a rotary switch comprises two annular members 50 each having moulded therein a plurality of fixed contacts 48 with offset, slightly raised, insulating segments 52 therebetween. A detent path 54 is formed at the junction of the two members 50 with valleys 58 and peaks 56 aligned respectively with contacts 48 and insulating segments 52. The members 50, with two insulating spacers 38 and 40, are clamped between end walls 30 and 32 by means of screws 42. The end walls form bearings 34 and 36 for a shaft 24 having a square-section portion on which the rotor 28 is carried. The rotor has radial slots 62 circumferentially spaced to accord with the fixed contacts 48. Each slot 62 coincides with three " holes ". which form grooves in the side walls of each slot. Any central hole 64 can accommodate a spring-loaded detent 60, to cooperate with path 54 on the stator, while the outer holes 66 accommodate springs 72 urging a U-shaped contact 46 to bridge selected contacts 48. The insulating segments 52 are axially spaced from the rows of contacts 48 so that different parts of contact 46 wipe the contacts and insulating segments and metal tracking is prevented. The insulating segments 52 also stand slightly proud of the contacts 48 and thus lift the bridging contact 46 as it leaves contacts 48, thereby reducing arcing. The gap between rotor 28 and stator 26 is small to assist arc-quenching. In a modification (Figs. 7 to 10, not shown) the moving contact comprises two mutually sliding U-shaped members individually spring-loaded and with extended curved contact surfaces at their ends such that one engages the succeeding fixed contact before the other leaves the previous fixed contact, thus providing a make-before-break action.
Patent GB-859359-A (GB)
Title: Improvements in or relating to heat exchangers for heating or cooling flowable solids
Inventor: FRANCIS NORMAN LEGG
IPC: F26B11/04
Filed: 1959-06-26
Abstract: 859,359. Heating and cooling granular materials. LINK-BELT CO. June 26, 1959, No. 22062/59. Class 64(2) Solids, such as soyabean meal, detergents, sugar, ores or chemicals, from a shoot 46 are passed by a double helix 52 in the reduced end of a rotated drum 14 to the interior of the drum and they are passed through this by spaced hollow flights 54 of chordal form, Fig. 3, to the reduced, discharge end of the drum which has a double helix with scooping flanges 76 in the conical connecting portion 34. The bottom of the drum 14 is immersed in heating or cooling liquid in a tank 10. To replace vapour lost through an outlet 42, further liquid may be added through an inlet 12. The liquid supply may be continuous in which case an outlet is provided at the solids-feeding end. Liquid is scooped into the flights 54 through openings 64 in the drum wall adjacent the leading ends of the flights. Openings 66 at the trailing ends, fitted wth plugs each chosen according to the size of an orifice through it, slowly release some of the liquid as the drum rotates. The remainder of the liquid is carried over and discharges back to the tank 10 through the openings 64 as the flights descend.
Patent GB-441931-A (GB)
Title: Improvements in and relating to contacts for electric switches and the like
IPC: H01H1/10
Filed: 1934-07-28
Abstract: 441,931. Switch contacts. IGRANIC ELECTRIC CO., Ltd., 147, Queen Victoria Street, London, and GRAFTON, W. F., 43, Waterloo Road, Bedford. July 28, 1934, No. 22091. [Class 38 (v)] A laminated switch contact 1 has a curved concave surface which engages a convex surface on the cooperating contact 2 Preferably, the radius of curvature of the contact 2 is greater than that of the contact 1 so that the outer laminations are moved to a greater extent than the inner ones when the contacts engage. A central lamination 6 serves for conducting the current to the contact and the contact may be mounted on a panel 9 of slate as shown.
Patent GB-1446497-A (GB)
Title: Electronic timepiece
IPC: G04C3/06
Filed: 1974-05-17
Abstract: 1446497 Electronic watches CITIZEN WATCH CO Ltd 17 May 1974 [24 May 1973] 22118/74 Heading G3T [ Also in Division H1] An electronic timepiece comprises an oscillatory body (e.g. a balance wheel or tuning fork) the amplitude of oscillation of which is maintained constant by a drive circuit, Fig. 5, including a drive coil LD and a detector coil L S  which provides a feedback signal dependent upon the angular velocity of said body, or feedback amplifier Q4 to Q 11  which receives (via C 2 ) and amplifies this feedback signal, and a control means Q 1  to Q 3  also supplied with the feedback signal and including a differentiating circuit (C 1 ) and arranged to control the feedback amplifier, the control means and feedback amplifier being formed in a single monolithic (silicon) chip. In Fig. 5 the drive voltage output of the feedback amplifier is fed back to its input via R 9  which together with C2 forms a time constant circuit. The differentiated feedback signal via C 1  is amplified by Q 1  and Q 2  and when the amplified voltage exceeds the threshold level of Q 3  the latter conducts - as indicated by the shaded portions of the differentiated signal f' (A) in Fig. 3(b) which are added to the D.C. bias V B  Fig. 3(c) applied to the feedback amplifier input at the base of Q4. The resultant input signal controls the amplifier output signal Fig. 3(c) from which drive pulses (shaded portions) are derived when the output signal exceeds a level Thp. If the oscillation amplitude of the body becomes smaller, the width Tp of drive pulse is increased as shown Fig. 3(c)B and vice versa as shown Fig. 3(c)C, and thereby the amplitude of oscillation is increased or decreased respectively. The resistor R 9  is in the order of 1000 M# and C2 is 200 pF. Both are formed by an MOS transistor Fig. 6 (not shown). To use as a resistor, the latter is provided with a gate of P-channel MOAOS construction comprising five layers Fig. 7 (not shown) - an aluminium electrode M, a protective oxide film O<SP>1</SP> of vapour deposited S i O 2 , an alumina film A, an oxide film O of thermally oxidized S i O 2  and a silicon substrate S of N-type. The oxide film layer primarily determines the resistance value of the MOS-R; examples of thickness thereof in relation to resistance values are given. The gate portion of the MOS-R may be used as a capacitor by making use of the N-channel type semi-conductor capacitance characteristic. The steps in forming the circuit of Fig. 5 in a monolithic silicon chip are described with reference to Fig. 9 (not shown).
Patent GB-850759-A (GB)
Title: Improvements in or relating to shirt presses
Inventor: NANCARROW LAWRENCE
IPC: D06F71/34
Filed: 1958-07-10
Abstract: 850,759. Ironing-presses. BAKER PERKINS Ltd. July 8, 1959 [July 10, 1958], No. 22216/58. Class 138 (2). A shirt is fitted on to a buck 12 provided with side expanders 33 (Fig. 6), at a dressing- station and moved to a pressing station where the back and front of the shirt are pressed by a pair of heated outer bucks 13, and heated air is introduced into the. centre buck 12 to inflate, de-wrinkle and dry the sides, sleeves and yoke of the shirt. The cuffs of the shirt are sealed by clips 53, 58 (Fig. 6) and the tail of the shirt by pads 66 on the bucks 13, and clamps (not shown), so that most of the heated air passes through the shirt. Two central bucks mounted on converging tracks (Fig. 2) enable one shirt to be fitted while another is being pressed. Each central buck is mounted on a carriage 19 comprising a sleeve 20 embracing a tubular guiderod 21 and a roller 22 running on a track 23. The carriages 19 are connected to the ends of a chain 24 extending round a sprocket 25 mounted on a shaft 26 carrying a pinion 27 engaging a rack 28 which is reciprocable by a doubleacting pneumatic cylinder Q. The outer bucks 13 are operated by a double-acting pneumatic piston and cylinder P (Fig. 3) connected between the ends of levers 70 pivoted at 71. As the bucks 13 move outwardly from their pressing position they engage fixed stops 75 (Fig. 2) and spring- loaded stops 76 and therefore are moved to a diverging position. Doors 18 close automatically when a buck 12 arrives at the pressing station and the outer bucks are prevented from moving inwardly until the doors 18 are closed. The side expanders 33 are actuated by racks 34 meshing with a common pinion 35. One rack is connected to the piston-rod 36 of a cylinder U so that admission of air to cylinder U withdraws the expanders against the projecting influence of a spring 37. The tail clamps (32, Fig. 7, not shown), are pivoted to the buck at their lower ends and moved away from their clamping position by a pneumatic cylinder T acting against spring-pressure through linkage 41, 42. Cylinders T, U are connected by pipes 47, 48 to spigots (Fig. 4, not shown) which are adapted to enter female coupling-members for air supply when the buck arrives at the dressing-station. The air supply to cylinders T, U is controlled by foot pedal and lever-operated valves respectively (not shown). The heated air for inflating the shirt is supplied by a fan 16 (Fig. 1) heater 17 and a pipe 15 which is connectable to the neck 14 of the buck by a pneumatically-operated shutter 65. Internal vanes 59 (Fig. 6) direct the air within the buck 12. Figures 10, 11 (not shown) illustrate pneumatic and electric control-circuits for the press. They include time delay switches for delaying the supply of hot air to the centre buck until the outer bucks have been closed on it for a predetermined time and for controlling the time for which the outer bucks remain closed.
Patent GB-278497-A (GB)
Title: Improvements relating to petrol pumps
IPC: B67D7/42
Filed: 1926-09-09
Abstract: 278,497. Noble, T. Sept. 9, 1926. Delivery spouts. - A protector for the taps or nozzles fitted to the ends of the delivery pipes of petrol and similar pumps comprises a collapsable shroud 6 of such dimensions and shape as to project beyond and to screen the whole of the nozzle or tap when the pump is out of use and to collapse lengthways whilst screening the filler aperture of the tank when the pump is in use. The construction may incorporate a spiral spring to provide the necessary resilience.
Patent GB-534336-A (GB)
Title: Improvements in or relating to variable speed power transmission
IPC: F16H9/16
Filed: 1939-08-01
Abstract: 534,336. Variable-speed gearing. ALLISCHALMERS MANUFACTURING CO. Aug. 1, 1939, No. 22292. Convention date, Aug. 22, 1938. [Class 80 (ii)] A variable speed power transmission unit having parallel shafts carrying expanding pulleys each consisting of fixed and movable conical discs comprises a casing 10 having side walls with bearing supports 11, 12 for the parallel shafts 14, 15, the supports in one side wall having threaded sleeves 36 coacting with nut members 34 which are raised simultaneously, to operate the sets of movable discs on both shafts. The bearing supports have ball bearings 13 for the shafts and are removable as a unit with the shafts. The pulleys are as decribed in Specification 467,393 the discs 42 of the upper set, Fig. 1, being keyed to the shaft 15 and spaced by axial sleeve parts 43 and the discs 18, 19, 20 of the lower set being keyed to shaft 14 and spaced by sleeve parts 21. The slidable discs 26-28 are connected together by bolts 39 and move over the sleeves 21. The disc 28 is connected through a thrust bearing33 to the nut34and the intermediate slidable discs have arcuate axial projections 29 extending through slots in a fixed disc to abut an adjacent sliding disc. The bearing support 12 has the threaded sleeve extension 36 coacting with the nut 34 to which is slidably keyed an axially fixed worm wheel 37. The pulleys on the upper shaft 15 are of similar construction. The two worm wheels are driven simultaneously by worms 53 on a shaft 52 operated from a handwheel 60. The shaft carries an indicator nut 57 which moves on a threaded part 55 to show the speed ratio. When the shaft 52 is rotated both nuts 34 move in the same direction thereby expanding one set of pulleys and contracting the other set. The belts are tensioned by a jockey roller 62, connected to an adjustable spring device 68. The roller 62 carries fan blades 71 for ventilating the gearing.
Patent GB-170916-A (GB)
Title: Improvements in or in connection with trawl nets
IPC: A01K73/02
Filed: 1920-07-27
Abstract: 170,916. Loneaster, J. W., and Loncaster, R. L. July 27, 1920. Trawling-gear.-Two or more series of longitudinally curved protecting-pieces A of hard wood are attached to the underside of the cod end of a trawl E by ropes or the like D, D<1>, which are secured to the net and by lacings d, d<1>, to ropes or the like B, which pass through eyes in metal caps or the like A<1>, A<2> on the pieces A, the back ends of the pieces A of the forward series overlapping the front ends of the pieces of the next series. The wood pieces A, as shown in Figs. 1 and 2, may have a metal cap A<1> having a recess a<2> and holes a<1>, or a metal channel-piece, provided with a hole in its forward projecting end, may be fitted on each longitudinal edge of the pieces. The back ends of the pieces may be similarly provided with metal caps, or may be connected to the net by means of a wire F or the like which engages saw cuts a<4> in the pieces. One or more metal bars or pieces a<3> may be secured to the underside of the pieces A. The Provisional Specification also states that the pieces A may be connected to the net by a rod, rope or the like passing through holes in the front ends, or may be connected together by rods or the like passing through other holes in the pieces, or by metal plates or the like secured to the upper or undersides of the pieces, and may be provided with channel-shaped shoes.
Patent GB-1084578-A (GB)
Title: Stabilized resinous compositions containing metal compounds
IPC: C08K5/00
Filed: 1966-05-19
Abstract: A resinous composition contains a synthetic resin derived from olefinically unsaturated monomers, or a polyester, and up to 10% by weight of a metallic compound containing a Me-X- group wherein Me is bismuth or antimony and X is halogen, oxygen or sulphur, and as a stabilizer, 0.1 to 5% by weight of a diaroyl methane of the formula <FORM:1084578/C3/1> wherein R is hydrogen or a monovalent hydrocarbon radical. Diaroyl methanes of the above formula in which at least one hydrogen of at least one of the benzene rings is substituted by halogen, hydroxy, alkoxy, or a hydrocarbon radical, and those in which two vicinal carbon atoms of at least one of the benzene rings of the diaroyl methane are connected by a O-R-O- group, where R is alkylene, may also be used as stabilizers. Conventional light stabilizers may be incorporated in the compositions. Specified resins are vinyl chloride homopolymers and copolymers, polyoefins, polystyrene, and ABS copolymers.  In the examples, (1) polyvinylchloride is mixed with bismuth oxychloride, dibenzoyl methane, and other conventional additires, (2) polyvinyl chloride is mixed with antimony tris-(isooctyl acetomercaptide), dibenzoyl methane, and stearic acid, (3) an acrylonitrile-butadienestyrene resin is mixed with bismuthylchloride and dibenzoylmethane, and (4) a comparative example, polyvinyl chloride is mixed with dibutyl tin bis-(isooctyle acetomercaptide), dibenzoyl methane and a mineral oil. The use of resorcinol monobenzoate, 2-(21-hydroxy -51-methylphenyl) benzotriazole, benzoyl acetone and ethyl acetoacetate as stabilizers in place of the dibenzoyl methane is also exemplified.
Patent GB-1101050-A (GB)
Title: Transducer bridge for a stringed instrument
IPC: G10H3/18
Filed: 1966-05-19
Abstract: 1,101,050. Electric guitar pick-up. D. H. BALDWIN CO. 19 May, 1966 [30 Aug., 1965], No. 22357/66. Heading G5J. The Figure shows a piezo-electric pick-up for a stringed musical instrument such as an electric guitar. A U-shaped member is slotted 15 along its upper limb 14, the separated cantilever portions thus provided having each a raised notched part 18 to act as the bridge for a particular string. The piezo-electric crystals 20 are in contact with the underside of the cantilevers and are supported by a copper shim 21 slotted between adjacent crystals, a strip 22 of electric insulation which is resilient mechanically and prevents the transmission of transients to the output, and a continuous lower copper shim 23. The output is taken from the two copper shims. To enable a tremolo bar to be used, the bridge is mounted on two conical surfaces provided on the upper sides of knurled nuts 12. In an alternative arrangement (Figs. 5 and 6, not shown), each separate cantilever is provided with an adjustable string carrier which may be adjusted along the length of the string and clamped in position by a screw; the bridge is also tapered transverse to the length of the guitar.
Patent GB-1267426-A (GB)
Title: Improvements in electric incandescent lamps
Inventor: COATON J R
IPC: H01K1/54
Filed: 1969-05-01
Abstract: 1,267,426. Electric incandescent lamps. THORN LIGHTING Ltd. 1 May, 1969, No. 22391/69. Heading HlF. A tungsten-halogen cycle lamp having a fill comprising a compound containing hydrogen and a halogen which yields free halogen when heated is provided with means adapted to combine with the hydrogen yielded by the fill to reduce the hydrogen content of the reactive system. In a first embodiment the means comprises a structure which is arranged to be heated by the operation of the lamp and consists of a first material, such as Ti, Ta, Zr or Al or an alloy thereof, which absorbs hydrogen when heated and is reactive with the halogen, and a protective barrier of a second material, such as Pd or a Pd-Ni alloy, which is impermeable to the halogen but allows the hydrogen to permeate through to the first material. In a second embodiment the means consists of a second halogen which has a greater affinity for hydrogen than the halogen of the compound. The compound is preferably an alkyl halide such as methyl iodide.
Patent GB-736863-A (GB)
Title: Improvements in sheet separating devices
IPC: B65B41/04
Filed: 1952-09-05
Abstract: 736,863. Feeding sheets. SCHWEIZERISCHE INDUSTRIE-GES. Sept. 5, 1952 [Sept. 5, 1951], No. 22419/52. Class 100 (1). Sheet-separators.-Sheets 2 are separated individually from a stack 1 by the combined action of a suction device 7, 16 and a slider plate 17 provided with a gripper 20, 21, the sheets being deposited on the table &c. 3 of a packing or other machine. The sheets rest on a fixed base 4 which is slotted at 6. The suction head 7 is pivoted at 9 to a lever 8; this lever is pivoted at 26 on the machine frame 10 and adapted to be rocked about this pivot by known means. The head 7 is urged against a stop 11 on the lever 8 by a spring 12, and a lug 14 on the head 7 is adapted to engage a fixed stop 13 when the head is raised. A suction port 16 in the head 7 is connected to a vacuum source by a flexible pipe 15. In operation, the lever 8 is rocked upwardly and the' bottom sheet 2 is gripped by the sucker 16. On further upward movement of the lever 8, the head 7 lifts the stack away from the base 4 and is then rocked to the position shown by the stop 13 engaging the lug 14; the head now supports the stack by a cam edge 24. The slide 17 is moved horizontally and enters the stack between the bottom sheet and the rest of the stack. The sucker 16 now releases the sheet, the head 7 is lowered, and the slide 17 moves completely into the stack. The gripper 20, 21 is operated to hold the bottom sheet to the slide 17, and the latter is retracted, bringing the sheet over the table 3, whereupon the sheet is released by the gripper.
Patent GB-1162359-A (GB)
Title: Process for the Production of Aromatic Polynitriles and the corresponding Aromatic Polycarboxylic Acids
IPC: C07C255/51
Filed: 1967-05-15
Abstract: 1,162,359. Aromatic polynitriles. LUMMUS CO. 15 May, 1967 [18 May, 1966], No. 22422/67. Heading C2C. In a process for producing aromatic polynitriles by reacting aromatic hydrocarbons with NH 3  at elevated temperature in presence of an oxide catalyst, a first reaction product comprising aromatic polynitrile, aromatic mononitrile, unreacted aromatic hydrocarbon, H 2 O vapour, H 2  and unreacted NH 3  is quenched with H 2 O. The products may be hydrolysed to the polycarboxylic acids; preferably after first purifying the polynitriles by crystallization. When e.g. the hydrolysis of terephthalonitrile (from pxylene) is effected with NaOH, disodium terephthalate which is subsequently acidified is first obtained.
Patent GB-423944-A (GB)
Title: Improvements in or relating to wall plugs
IPC: F16B13/00
Filed: 1933-08-11
Abstract: 423,944. Wall plugs. BROWN, J., 40, Sidcup Road, Lee, London. Aug. 11, 1933, No. 22423. [Class 89 (i)] A wall plug is formed of a closely coiled wire 2 surrounded by an outer open coil 9, this coil being continuous with the wire of the inner coil. The opposite end 14 of the inner coil is bent backwards parallel to the coil axis.
Patent GB-1479859-A (GB)
Title: Oxacyclohexane derivatives
IPC: A01N43/32
Filed: 1975-05-23
Abstract: 1479859 Herbicidal application of oxacyclohexane derivatives NIPPON SODA CO Ltd 23 May 1975 [4 June 1974] 22454/75 Heading A5E [Also in Division C2] Compounds of formula: in which R 1  is alkyl of I to 3 carbon atoms, and R 2  is ethyl, allyl or propargyl; A is selected from: (1) in which R 3  is H or methyl; R 4  is methyl, ethyl or phenyl, or R 3  and R 4  together form C, or C 5  cycloalkylene; (2) in which R 5  and R 7  are H or methyl; and R 6  is methyl or ethyl; and (3) in which R 8  is H or methyl and R 9  is methyl or ethyl; and metal salts thereof are used as herbicides in compositions containing other known herbicides such as N - (3 - chloro - 4 - methoxyphenyl) - N', N' - dimethylurea, N - (3, 4 - dichlorophenyl). - N', N' - dimethylurea, N - (3, 4 - dichlorophenyl) - N' - methoxy- N' - methylurea, 1, 3 - dimethyl - (3 - benzothiazole - 2 - yl) urea, 1, 3 - dimethyl - 3 -(5 - methylbenzothiazole - 2 - yl) urea, 1, 3 - dimethyl - 3 - (5 - t - butylbenzothiazole - 2 - yl) urea, 1, 1, 3 - trimethyl - 3 - (5 - methylbenzothiazole - 2 yl) urea, 1, 1, 3 - trimethyl- 3 - (5 - ethylbenzothiazole - 2 yl) urea, 1, 3- dimethyl - 3 - (5, 7-dimethylbenzothiazole - 2- yl) urea, 1, 1, 3-trimethyl - 3 -(5, 7 - dimethylbenzothiazole - 2 - yl) urea, 2 - chloro-4, 6-diethylamino-1, 3, 5 - triazine, 2 - chloro - 4 - ethylamino - 6 - isopropylamino - 1, 3, 5- triazine, 2 - chloro-4, 6 - diisopropylamino-1, 3, 5 - triazine, 2 - methylmercapto - 4 - ethylamino - 6 - isopropylamino - 1, 3, 5 - triazine, 2 - methylmercapto - 4, 6 - diisopropylamino- 1, 3, 5 - triazine, 3 - methoxycarbonylaminophenyl - N - (3' - methylphenyl) - carbamate, methyl N - (3, 4 - dichlorophenyl) carbamate, isopropyl N - (3 - chlorophenyl) carbamate, S - (4 - chlorobenzyl) - N, N - diethylthiol carbamate, N' - nitro - 2, 4 - dichloro - diphenyl ether, 4 - nitro - 2, 4 - 6 - trichlorodiphenyl ether, 2 - methyl - 4 chloro - phenoxyacetic acid, 2, 4 - dichloro - phenoxyacetic acid, 3 - isopropyl - 2, 1, 3 - benzothiadiazine - 4 - one - 2, 2 - dioxide, and 1 - phenyl- 4 - amino - 5 - chloro-pyridazine.