baber/WOPTO huggingface dataset:
Patent GB-238475-A (GB)
Title: Improvements relating to coin freed mechanism of gas and similar meters
IPC: G07F15/08
Filed: 1924-06-17
Abstract: 238,475. Simpson, S. June 17, 1924. Gas, supplying by meter. - Prepayment gas- and similar meters, especially such as are described in Specification 171,445, are adapted to be set for use with coins of different value, such as a penny and a shilling. The coin-operated measuring wheel h, Fig. 1, drives a pinion i to rotate a sleeve nut l, Fig. 4, slidably passing therethrough and engaging a screwed spindle m. The sleeve l engages a forked plate n<1> which has a pin to actuate the value lever and is carried by a sliding rod n. The spindle m is rotated to close the valve by a meter shaft' o which drives a coupling sleeve m<3> free to rotate and slide on the spindle m. The sleeve m<3> carries a pinion m<2> which, when a penny is being used, is connected by a pair of dogs m<7> to a pinion m<1> on the spindle m. When a shilling is being used, the sleeve m<3> is slid to disengage the pinion m<2> from the dogs m<7> and to bring it into mesh with a pinion m<4> on a lay shaft which has a second pinion m<5> engaging the pinion m<1>. The sleeve m<3> is operated by a rod q carrying a forked lever to engage it and a pin q<1> for engagement in a slotted retaining plate q<2>. Coin action, thrust and multiple-coin.-A coin inserted through a slot c<1> in a stationary adjustable price-changing disc into a rotary carrier a depresses an arm f<3> of a lever f pivoted at a<1> in the carrier, thereby causing a tooth f<2> on the other arm f<1> of the lever to engage between crown teeth h<2> of the measuring wheel h. The lever f is formed with a movable part f<4> against a tail f<5> on which the coin acts. The part f<4> has a slot f<6> to slide on the pivot a<1> and is secured in position to be acted on either by a penny or a shilling by a screw entering one of two holes f<8>. Exchangeable levers for use with different coins may be employed or exchangeable intermediate levers adapted to be acted on by the coins and to co-operate with a lever which engages the measuring wheel.
Patent GB-1022717-A (GB)
Title: Method and apparatus for feeding and corrugating metal strips
Inventor: LACEY ELBERT MELVILLE
IPC: B21D13/02
Filed: 1964-02-21
Abstract: 1,022,717. Making honeycomb sections; corrugating; metal strip feeds. ROHR CORPORATION. Feb. 21, 1964, No. 7286/64. Headings B3A, B3E and B3W] In apparatus for intermittently advancing and corrugating a metal strip, strip 16 from a supply reel 18 is fed between feed rollers 20, 22 and after forming a sagging loop 24 passes between adjustable guide bars 38 along a bed 30, over a roller 31 which projects above the surface of the bed, to a reciprocating corrugating press 42. The strip is intermittently advanced along the bed 30 by a unit comprising a cam 32 cable driven from the press 42 which actuates an arm 34, slidably mounted in members 72, 73, 74 (Fig. 5, not shown) and biased in the retracted position by springs 64, carrying a plate 76 pivotally mounted and dependent therefrom and having a foot 36, of metal, rubber or nylon, attached to the outer end thereof, which is biased towards the roller 31 by adjustable spring means 75, 80. Attached to the camshaft 54 is a two-part pulley 56 which drives the feed roller 20 via a pulley 62. The outer part of the pulley is movable towards and away from the inner part thereof the parts having inner tapered portions, so that the effective diameter thereof is adjustable to regulate the strip feed rate to maintain the loop size constant. The centre portion of the roller 20 is undercut an amount equal to the strip thickness so that the strip is located therein, the outer portion thereof being in contact with roller 22. The roller 20 is biased into contact with the strip and roller 22 by adjustable spring loaded bearing assemblies 87. The retraction of the arm 34 is adjustable via a screw 81 carried by the member 79 and co-operating with the cross bar 73. The press 42 comprises forming and spring loaded holding punches 46a, 46b co-operating with a die 48. In operation the punch 46b seats the two last formed corrugations in the die 48 whilst a number of corrugations which have just moved clear of the press are pressed between and elongated a predetermined amount by adjustable members 90, 91 mounted thereon. Continued lowering of the punch ram bottoms the punch 46b to securely hold the strip whilst the punch 46a forms a corrugation in the portion thereof which bridges the first portion of the die 48. The strip is drawn forward under the stationary foot by the punch as it forms the corrugation in the lower die whilst the cam 32 rotates into a position whereby the arm 34 may retract and cam the foot rearwards over the stationary strip. Subsequently the punches are raised and the cam actuates the arm which causes the foot to advance the strip one corrugation over the freely rotatable roller 31. Lengths of corrugated strip may be welded at their nodes to form a honeycomb section which may be sandwiched between a pair of flat metal sheets.
Patent GB-127672-A (GB)
Title: Improvements relating to Internal Combustion Engines.
IPC: F01L1/053
Filed: 1917-05-21
Abstract: 127,672. Coatalen, L., and Sunbeam Motor Car Co. May 21, 1917. Drawings to Specification. Cylinders, arrangement of ports in.-The valves are situated in the curved cylinder head with their axes radiating from the centre of curvature. They are opened by bell-crank levers acting through short tappet rods, which relieve the valve spindles from lateral stresses.
Patent GB-374872-A (GB)
Title: Improvements in the mounting of grinding or abrading wheels upon spindles
IPC: B24D5/16
Filed: 1931-03-10
Abstract: 374,872. Securing-grinding wheels on shafts. SANNO, A. P. DE, 1615, McKean Street, Philadelphia, U.S.A. March 10, 1931, No. 7363. [Class 80 (ii).] Grinding - wheels, especially those of small diameter used for internal grinding, are mounted on their spindles so that relative rotation thereon is avoided. The hole 3 in the wheel 4 may have a flat 2a, a corresponding flat being formed on the spindle, or the hole and spindle may be of star, half-round, elliptical, or polygonal cross section. The wheel is keyed to the spindle by the use of cement &c.
Patent GB-1181715-A (GB)
Title: Improvements in or relating to the Guarding of Machine Tools
Inventor: CLAYSON KENNETH HUBERT
IPC: F16P3/14
Filed: 1967-02-16
Abstract: 1,181,715. Proximity switches; controlling machinery by machine guards. WILMOTBREEDEN Ltd. 7 March, 1968 [16 Feb., 1967], No. 7427/67. Heading F2J. [Also in Division G1] In a power press in which the workpiece is both inserted by the operator and withdrawn after processing, the guard is closed and the machine automatically operated by every SECOND RESPONSE of a proximity detector to the operator's presence. Preferably an AND signal, from a microswitch on the guard, is used to gate the signal from the proximity-switch to a divide-by-two circuit so that the control is not affected by movement of the machine parts during operation. Further a bi-stable latch circuit is reset only at the end of the cycle, e.g. by a pulse from a micro-switch on the press crank, Fig. 1 (not shown).
Patent GB-1481130-A (GB)
Title: Process for producing polymeric films from crystallizing polyesters
IPC: B29C48/08
Filed: 1975-02-21
Abstract: 1481130 Polyester films NAUCH-PROIZVODSTVE OBIEDINE PLASTIK 21 Feb 1975 7435/75 Heading B5B Crystallizing polyesters, especially polyethylene terephthalate are extruded in film form cooled to 20-80 C. heated at 130-190 C. to give 5-50% crystallinity, cooled to 20- 80 C., heat set 170-250 C., then cooled to 20-80 C.
Patent GB-327834-A (GB)
Title: A device for controlling the speed of electric motors
IPC: H02P7/06
Filed: 1929-03-07
Abstract: 327,834. McKenzie, L. V. March 7, 1929. Flywheels. - A motor a, driving a piano player &c., is maintained at constant speed by a disc c, driven thereby, having its inertia increased when the motor tends to accelerate, and decreased when the motor tends to decelerate. The change of inertia is due to weights e located in recesses d and thrown outwards by centrifugal action against springs f.
Patent GB-382525-A (GB)
Title: Improvements relating to carpet joints and uniting strips therefor
IPC: D03D11/00
Filed: 1932-03-14
Abstract: 382,525. Compound fabrics. SANFORD MILLS, Sanford, Maine, U.S.A. March 14, 1932, No. 7509. Convention date, Oct. 28, 1931. [Class 140.] Carpet material is made by uniting sections of pile fabric at their abutting cut edges by an adhesive strip 4 having a thick central zone 3 and thinner edges whereby the joint is concealed. The strip may comprise several superimposed layers of thin fabric or netting joined by an adhesive, such as a rubber or pyroxylin compound which may fill the pores of the netting. This adhesive may correspond with that used on the back of the pile fabric 1, of which the body may be a composite one comprising a woven ground, and a layer of coarse netting united by adhesive thereto. The layers of the strips 4 may be also united by rows of stitching.
Patent GB-877473-A (GB)
Title: Improvements relating to buckles
IPC: A44B11/06
Filed: 1959-05-12
Abstract: 877,473. Buckles. HARLEY, F. B., and HARLEY PATENTS (INTERNATIONAL) Ltd. May 12, 1960 [May 12, 1959], No. 7559/61. Divided out of 877,472. Class 43 [Also in Group XXV]. A buckle for connecting a strap to another part comprises a body having a part for connection to the other part, a gripping edge extending transversely to the length of the strap and an auxiliary anchorage 59 having an edge parallel with the gripping edge the auxiliary anchorage having a non-circular trunnion 69 at each end received in a non-circular but larger aperture 70 in the body the dimensions of the trunnions and apertures being such that they permit only a limited rotary movement of the auxiliary anchorage with respect to the body such that the strap end is passed under the gripping edge around the auxiliary anchorage and back under the gripping edge between the gripping edge and the standing end of the strap, tension applied to the standing end of the strap tends to rock the auxiliary anchorage so that an edge of it adjacent the gripping edge moves towards the gripping edge to grip the strap. The buckle comprises upstanding side members 60 connected by cross members 61 and 62 each enclosed by a plate .64 to provide a gripping edge 65. The auxiliary anchorage has a semicircular upper end and a grooved lower edge 68. The trunnion at each end of the anchorage is semi-circular or D shaped and pivots in a similarly shaped but larger aperture in a side member. The cross member has a loop 79 to facilitate releasing the strap. The other end of the strap is looped round the other cross member and is sewn on to the strap. An auxiliary anchorage may grip each end of the strap.
Patent GB-1518961-A (GB)
Title: Amplifier circuits
IPC: H03F3/45
Filed: 1975-02-24
Abstract: 1518961 Amplifiers RCA CORPORATION 4 Aug 1975 [24 Feb 1975] 7659/75 Heading H3T The transconductance of a field effect transistor is increased by connecting its source-drain path across the input and output of a current mirror amplifier. In a CMOS inverter, Fig. 4, the source-drain paths of enhancement type MOSFETs 4<SP>1</SP> 4<SP>11</SP> are in series with the diode connected transistors 6 6' which parallel the emitter base junctions of transistors 7 7<SP>1</SP> to form current mirrors. The junction areas of transistors 7 and 7<SP>1</SP> are respectively m and n times that of transistors 6 and 6'; m and n may be the same or different. The quiescent current in transistors 7, 7' may be reduced by deflecting some of the current that would flow through transistors 6, 6' into parallel branches of a dual current mirror, Fig. 5 (not shown). Bias voltage supply Fig. 6.-Connecting a current mirror amplifier 5 across the drain-source path of a self-biased FET 4<SP>11</SP> reduces its offset voltage by an amount dependent upon the ratio 1 :m, so any desired voltage may be obtained between terminals 13 and 14 by applying constant current from a source 12 to a series connection of a number of selfbiased FETs 15 to give integral multiples of the FET offset voltage plus a circuit' 16 to give the desired fraction of the FET offset voltage. The bias voltage may be used for an FET current mirror Fig. 7 comprising two pairs of FETs 24, 25 and 26, 27 in cascode arrangement. In another cascode FET amplifier. Fig. 8, current mirrors 38, 39 are connected across the FETs 35, 37 to keep the drain-source voltages of FETs 34, 35 and 36, 37 at about half the gate-source voltage of FETs 34 and 36. A current applied at 31 is multiplied by the ratio of transconductances of FETs 34, 36 and appears as an output at 33. In modifications, the gates of FETs 34, 36 and possibly also 35 and 37 are returned to the collector of the diode connected transistor in current mirror 38, Figs. 9 and 10 (not shown). In further modifications, FETs 34, 36 are replaced by direct connections, Figs. 11 and 12 (not shown). A differential input stage for an operational amplifier, Fig. 13 comprises FETs 64, 74 with their gates connected to the differential inputs 61, 71. Connecting the current mirrors 65, 75 across the FETs 64,74 increases their transconductance without substantially increasing the input capacitance (particularly if transistors 64 and 67 are combined in an integrated circuit with one region forming substrate of 64 and collector of 67 and another region forming drain of 64 and base of 67). Current mirror 90 converts the balanced output at 63, 73 to an unbalanced input to the next stage 85. The circuit may be modified to operate with a single bias supply, Fig. 14 (not shown).
Patent GB-777687-A (GB)
Title: Polyhydrophenanthrene compounds and their preparation
IPC: C07D317/72
Filed: 1953-09-17
Abstract: The invention comprises compounds having the formula: <FORM:0777687/IV(b)/1> in which the 7-position is occupied either by a bivalent group convertible to keto by acid hydrolysis, e.g. a cyclic ketal group or by a pair of univalent groups together convertible to a single keto group by acid hydrolysis, e.g. a noncyclic ketal group, and compounds having the formula: <FORM:0777687/IV(b)/2> in which the 7-position is occupied by a univalent group which is convertible to keto by acid hydrolysis, e.g. an enol ether group (in both formulas (a) and (b) R represents an alkyl group) and the corresponding 7-keto compounds, and the preparation thereof by subjecting to mildly alkaline hydrolysis the corresponding osmate esters bearing in 2-position of formul  (a) and (b) the grouping: <FORM:0777687/IV(b)/3> and, if desired, subsequently liberating the keto group in the 7-position.  The hydrolysis may be effected in ethanol or tetrahydrofuran by means of the sulphite or bisulphite of an alkali metal.  An example discloses the production of three stereoisomers of 1 - carbomethoxymethyl - 2-(b ,g  - dihydroxyisobutyl) - 2,4b - dimethyl - 4-keto - 7 - ethylenedioxy - 1,2,3,4,4a,4b,5,6,7,8, 10,10a-dodecahydrophenanthrene and the corresponding 4,7-diketo compound.  Specifications 763,208, 777,686 and 777,688 also are referred to.
Patent GB-609386-A (GB)
Title: Improvements in and relating to electrostatic dust-separating filters
IPC: B03C3/76
Filed: 1946-03-12
Abstract: 609,386. Electrostatic dust-separating filters. SMIDTH & CO., AKTIESELSKABET, F. L. March 12, 1946, No.. 7752. Convention date, Aug. 29, 1944. [Class 39 (i)] An electrostatic dust-separating filter comprises ionising electrodes, Fig. 2 (not shown), and collecting plates 5 carried by two supporting beams 9, each connected by two rods 10 passing through the lower wall 16 of the casing 1 to a beam 13 resiliently suspended on springs 14 resting on collars 22 at the lower ends of rods 15 connected to the wall 16. The beam 13 carries an electromagnet 17, whose armature is secured to the rod 18. The rod 18 is reciprocated against the action of a spring 19 to impart jarring movements to the collector electrode assembly by energising the electromagnet 17 with alternating current.
Patent GB-515617-A (GB)
Title: Improvements in or relating to liquid pressure remote control systems
IPC: B64C25/22
Filed: 1938-03-12
Abstract: 515,617. Fluid-actuated valves. AUTOMOTIVE PRODUCTS CO., Ltd., CLENCH, E. C. S., and CARLTON, Q. H., (formerly KAHL, Q. H. H.). March 12, 1938, No. 7786. [Class 135] A liquid-pressure remote control system, e.g., for retractable undercarriages of an aircraft, comprises, as shown, two " dumb-bell " valves 21, 22 controlling a supply of pressure liquid from a pump 10 to a double-acting servomotor 15, both sides of which are normally connected via an exhaust 31 to a reservoir 11, the valves 21, 22 being actuated by liquid-pressure admitted to the chambers 61, 60 from the main supply by an auxiliary valve 37 moved from its central "off" position to either of its two "on" positions by a double-acting electro-magnetic device 47. The switch 57 controlling the device 47 is mounted in the pilot's cabin, and there may be provided limit switches 52, 53, normally closed but respectively opened by the servomotor 15 in each of its two end positions, so that after each actuation the electric circuit is automatically broken to allow the valve mechanism to return to the position of Fig. 1, so that the switch knob 58 may be left up or down to indicate the position of the servomotor 15. Alternatively, the switch 57 may be spring-urged to its central " off " position, in which case, in order to indicate the position of the servomotor 15 a variable resistance associated therewith may be connected through extra contacts on the switch 57 to an ammeter or ohm-meter situated near that switch, this circuit being completed as soon as the knob 58 is moved from its central position and before the contacts for the device 47 are connected. An adjustable throttle 62 may be employed to govern the rate of actuation of the servomotor 15 and the valve 37 may be directly hand-operated by means of a handle 48.
Patent GB-705538-A (GB)
Title: Improvements relating to presses for moulding and vulcanising a rubber sole directlyon to the upper of a shoe
IPC: B29C35/00
Filed: 1952-03-27
Abstract: 705,538. Moulding rubber soles on to footwear. SUPERGA SOC, PER AZIONI. March 27, 1952 [June 4, 1951], No. 7932/52. Class 87 (2) A press for moulding and vulcanizing a rubber sole directly on to the upper of a shoe comprises a-fixed mould having moulding surfaces for both the underside of a sole and also the edges thereof, and a last incorporated in the press and moved by pneumatic or hydraulic means between a withdrawn position, at which an upper may be mounted on it and a shoe taken off it, and a position in which the upper on the last is forced against the sole in the mould with. sufficient pressure for the vulcanizing operation. The mould 1 is fixed to a frame 2 which incorporates a vertical cylinder 3 housing a piston 4. The upper end of the piston rod 7 carries a bracket 9 which carries the last 16 and is bored for a plunger 10. The last 16 is carried from a pivot 14 on the bracket 9 and has rigid with it a pinion segment 13 which meshes with a rack 12 on the plunger 10. The rubber sole is placed in the mould 1 and the upper on the last 16 and compressed air or liquid under pressure is admitted to the top of the cylinder 3, causing the piston rod 7 to descend, carrying the bracket 9 and the last and upper with the result that the necessiary pressure is applied to unite the upper and the sole. After vulcanization pressure fluid is admitted to the bottom of the cylinder 3 and the last 16, with the shoe in position, rises with the bracket 9, the upward movement continuing until a roller 19 on the end of the plunger 10 meets an inclined arm 18 and the plunger I is therefore forced to the left (as seen in the Figure) against a spring 11 and the rack 12 rotates the pinion,13 and causes the last to turn on the pivot 14 to an inverted position convenient for removal of the shoe.
Patent GB-463012-A (GB)
Title: An hydraulic press
IPC: B30B1/16
Filed: 1936-03-17
Abstract: 463,012. Hydraulic presses. BENEDETTI, T. DE. March 17, 1936, No. 7998. Convention date, March 18, 1935. [Class 69 (ii)] [Also in Group XXIV] In a hydraulic press employing one or more toggles, each toggle comprises a pair of blocks 5, 5<1>, Figs. 2 and 4, with a pivot pin 6 housed in hollow seats in the adjacent faces of the blocks, Semicircular pivots 7, 7<1> are employed at the ends, and the pivots 6 engage plates 8 linked to a block 10 actuated by hydraulic pistons 12, 13. In another form shown in Fig. 6, the press frame is built up of a number of elements, and one hydraulic cylinder is disposed on each side.
Patent GB-1484448-A (GB)
Title: Conditioning of air in a food processing chamber
IPC: F24F3/044
Filed: 1976-03-01
Abstract: 1484448 Food processing apparatus DEC INTERNATIONAL INC 1 March 1976 [24 March 1975] 08001/76 Heading A2D In an apparatus for conditioning air in a food processing chamber such as a smokehouse, which apparatus includes air conduit means communicating with the smokehouse at an exhaust connection and an intake connection and through which air to be conditioned is withdrawn at the exhaust connection and through which conditioned air is returned at the intake connection, the conduit including a device for reducing the temperature of the withdrawn air, at least one of said means including an air heating device, at least part of the conduit includes two branches and modulating valve means for establishing the proportions of the total amount of withdrawn and returned air which passes through each of said branches, the temperature reducing device being located in one of said branches whereby the amount of air subjected to temperature reduction may be varied without varying the total amount of withdrawn and returned air. A suitable apparatus of the above type is shown in Fig. 1 and comprises a smokehouse 10 and air conduit means 14. The means 14 is bifurcated and consists of two branches 18 and 19. Branch 19 leads directly to the air heater 50 whereas branch 18 is connected to an air temperature reducing device in the form of a turbo exchanger 24, a cyclone separator 34 and a demister 36. After passing through the air heater 50, air may be passed to the smoke generator 55. The air, optionally containing entrained smoke, then passes via a humidifier to the smokehouse. A control apparatus 66 is provided to control the modulating valves 17, 20 and 52, valves 39 and 61, water cooler 46 and humidifier 59. The wet and dry bulb sensors 65 in the smoke house, are connected to the control apparatus. The apparatus 66 functions to control the operations of the smoking apparatus according to a predetermined programme and in accordance with desired smoke house conditions e.g. of humidity and temperature. The turbo exchanger 24 consists of a rotatable fan mounted in a housing which is provided with water spray nozzles 31.