baber/WOPTO huggingface dataset:
Patent GB-1127807-A (GB)
Title: Time delay circuit
IPC: H03K5/13
Filed: 1966-05-12
Abstract: 1,127,807. Transistor time-delay circuits. WESTINGHOUSE ELECTRIC CORP. 12 May, 1966 [20 May, 1965], No. 21047/66. Heading H3T. In a time delay circuit, an input terminal 16 is connected to charge a capacitor 26 via the drain-source path of a field-effect transistor 30 and a resistor 36, the gate electrode 38 is connected to the capacitor 26 and a voltage detecting circuit 14 is coupled to the capacitor. When a predetermined voltage is reached at the input 68 of a differential amplifier 50, as set by the reference voltage at the base of the transistor 56, the transistors 54, 56 change state so that transistor 54 turns ON and transistor 56 turns OFF. The output of transistor 54 is amplified by a transistor 80 of opposite conductivity type which also turns ON to provide an output at 18 delayed by a time (t 1 , Fig. 2, not shown) from the input at 16. The fieldeffect transistor 30 acts as a constant current generator and enables the capacitor 26 to be charged at a constant rate. A diode 44 discharges the capacitor at the end of the input pulse so that the differential amplifier 50 changes back to its original state. The voltage detector 14 can be constructed as a thin film or solid state molecular unit.
Patent GB-586576-A (GB)
Title: Improvements in electric eddy current clutches
IPC: H02K49/04
Filed: 1944-06-16
Abstract: 586,576. Electromagnetic clutches. HEENAN & FROUDE, Ltd., and HAYES, C. T. June 16, 1944, No. 21094/43. [Class 35] The armature of an eddy current clutch has axial passages separated by solid members shaped for inducing a flow of air over the surface of the armature in proximity to the field member. In the form shown, the armature C has axial ducts c by which air leaves the machine after passing over the active surfaces of member C, which co-operate with teeth A on the field member, the air currents being set up by teeth between slots c. Specifications 540,354 and 559,109'are referred to.
Patent GB-694443-A (GB)
Title: Improvements in electric power transmission for sewing machines and the like
IPC: D05B69/12
Filed: 1950-08-25
Abstract: 694,443. Motor driving arrangements. AMERICAN SAFETY TABLE CO., Inc. Aug. 25, 1950 [June 8, 1950], No. 21124/50. Class 35. [Also in Group XXIV] In a drive unit comprising an electric motor 10 mounted in a cylindrical housing 16 below a table 53 for driving a sewing or other machine, mounted above the table, through a cork-faced clutch disc 27 fast on the shaft of a driving belt-pulley 28, and axially movable therewith, by a spring-loaded treadle-actuated bell-crank 33, between a conically-ribbed clutch face 14 on a motor fly-wheel 12, and a coned brake rib 40, on the fixed housing 16, the axial travel of the clutch disc 27 between clutch and brake positions is adjustable to vary the actuation speed, but axial adjustment of the driving motor 10, in the fixed housing 16. Such adjustment externally of the housing is effected by turning a grooved sleeved nut 48, retained axially in the fixed housing 16 and threaded on a bolt 42 fixed to the motor 10, which latter is clamped in adjusted positions in the housing 16 by pinch bolts 22. To adjust the tension of the driving belt 55 the housing 16 is swung around a pivot 58 on a fixed bracket 56 and retained in adjusted positions by a telescopic link, the two parts 61-62 of which are adjustably secured together by a bolt 63 passing through a slot in one part. To permit removal of the belt 55 without disturbing the tension adjustment, the link 62 is retained on the housing 16 by a pin 66, Fig. 7, fast on the housing and passing through L- shaped slots 65 on the link, the pin being normally locked in the short arm of the slots, as shown, by a spring 68. Pressing the link towards the motor housing frees the pin 66 for movement into the long arm of the slots 65 so that the housing 16 can be pivoted upwards to release belt tension sufficient for belt removal. The belt has a pivoted cover-guard, not described. The motor fly-wheel 12 has vanes to circulate cooling air and at 70 carries two electrical supply sockets, one for the motor, the other for low-voltage lighting.
Patent GB-614585-A (GB)
Title: Improvements in or relating to dielectric heating apparatus
IPC: H05B6/50
Filed: 1946-07-15
Abstract: 614,585. Dielectric heating. INTRA-THERM CORPORATION. July 15, 1946, No. 21151. Convention date, July 16, 1945. [Class 39 (iii)] A quarter wave length transmission line having two limbs 10, 11, of conductors 16 is energised with H.F. power by valves 32, 32' and thereby functions as a tank circuit, and supplies power to heating electrodes 26, 27. A supply of D.C. or A.C. current is fed into the transmission lines at a voltage node 17 from a power supply 18, and voltages of appropriate phase and magnitude to sustain oscillation of the valves 32, 32' are taken from tapping points on the transmission line as shown. Limbs 22, 23, with telescopic extensions 24, 25, are connected to the transmission line by swivel joints 20, 21, to permit of variable mechanical arrangements to suit the size and nature of the material to be heated. Similarly the heating electrodes 28, 29, are mounted on swivel joints 26, 27, and may be used alone or in conjunction with an earthed electrode 31.
Patent GB-167670-A (GB)
Title: Improvements relating to weighing machines
IPC: G01G21/00
Filed: 1920-07-13
Abstract: 167,670. Smith, A., and Southall, C. July 13, 1920. Automatic-feed weighers.-The feed-sluices of automatic-feed weighers are retained in the open pcsition by catch members on which are pivoted trip members adapted to be moved into engagement with rotating ratchet-wheels by means of rods actuated by the weigh-beam, thus causing the release of the catches and the closure of the feed-sluices under the action of springs. The retaining and releasing mechanism for a sluice is shown in Fig 3. The sluice (not shown) is operated by a sliding bar b having a projection c which in the open position of the sluice engages a notch f in a spring-pressed bell-crank lever d. A pawl or trip member h is pivoted on the bellcrank lever d. As material is fed to the weighpan, the weigh beam tilts and causes a rod k to ascend and thus tilt the pawl h into the path of a rotating ratchet-wheel i. The ratchet-wheel, by acting upon the pawl, rocks the bell-crank lever d and liberates the sliding bar b whereupon the sluice closes in known manner under the action of a spring. The projection c by acting on an inclined surface e rocks the lever d and withdraws the pawl h from the ratchet-wheel. When the sluice is reopened in known manner, the parts are restored to the original positions. Specification 22790/02 is referred to.
Patent GB-506311-A (GB)
Title: Improvements in or relating to jig dyeing apparatus
IPC: D06B3/08
Filed: 1938-07-16
Abstract: 506,311. Dye-jigs. McALLISTER, J. W. July 16, 1938, No. 21169. [Class 15 (i)] Two string guides are attached on each side of the tank of a jig dyeing apparatus to prevent damage to the cloth by the knots on the strings working inwards under the cloth. Each guide comprises a metal bracket A clamped to the tank by a bolt F, and carrying on an adjustable swivel pin E<1> in a slot G<1> therein an arm B on which a guide G which reaches to the top of the jig roller is attached by a swivel pin E. The guides are spaced apart by tension rods D. When the end of the string tied to the cloth is reached, the cloth passes inside the guides G and wraps around the roller. The arms B and guides G then fall away from the roller, the arms B being checked by the brackets A and the guides G falling outwards.
Patent GB-188736-A (GB)
Title: Improvements in and relating to lockstitch sewing machines
IPC: D05B57/14
Filed: 1921-08-10
Abstract: 188,736. Cooper, J., and Twin Bobbin Sewing Machine Co., Ltd. Aug. 10, 1921. Lock-stitching by hooks; upper and lower slafts, connecting.-A rotary hook shaft is driven by connection with the end 19 of a lever 15 sliding within a pivoted block 17. The opposite end 16 of the lever is moved through a circular or other path by means of a lever 5 universally mounted on a gimbal support 10 and, at its upper end, engaging with both a cam-groove 9 and the surface of an eccentric drum 4 on the driving shaft 3. Feed by dogs.-The feed-bar is pivotally supported on a feed shaft oscillated by means of an arm 31 depending from the outer gimbal member and is given up-and-down motion from an incline 30 on the lever 15.
Patent GB-379478-A (GB)
Title: Improvements in or relating to the manufacture of machine-made welted boots and shoes
IPC: A43B9/04
Filed: 1931-07-24
Abstract: 379,478. Boots &c. HUTCHINGS & CO., Ltd., G. F. and HUTCHINGS, R. W., Portland Square, Bristol. July 24, 1931, No.21225. [Class 17 (ii).] In a machine made welted shoe, an insole a is cut substantially half-way through its thickness by parallel cuts e, the material round the edges being removed, but the flap c formed by the inner cut being allowed to remain. An upper d is stitched to the insole through the cut e leaving the flap c to lie flat, thus avoiding a ridge. The usual welt is shown at #.
Patent GB-203483-A (GB)
Title: Window regulator
IPC: E05F11/38
Filed: 1922-08-03
Abstract: 203,483. Brougham, F. J., (Perfect Window Regulator Co.). Aug. 3, 1922. Vehicle-window opening and closing apparatus. -In window opening &c. apparatus particularly for vehicles of the kind having sprockets and a chain engaging the sash, the upper sprocket is driven by gearing 50, 51, Fig. 6, in a casing 3, 4 and is operated by handle and clutch. The clutch comprises a fixed internally-serrated annular disc 39 and a spring-pressed engaging disc 42 therein which has cam surfaces engaged by flats on the spindle when the latter is rotated and is thereby freed from engagement with the fixed disc 39 to allow rotation of the gear 50. The drive is transmitted to the gear 50 by pins 43 engaging slots in a free disc 46 provided with studs engaging the gear. The spring controlling the disc 42 is housed in one of the slots of the disc 46. The window is counterbalanced bv a spiral spring having its ends fixed to projections on the casing and on the pinion 51. Inward and outward movements of the spring are limited by the ridge 67 and stops projecting from the casing. The chain is tensioned by a spring acting on the plates 11, 12 which carry the spindle 16 of the lower sprocket. Lugs engaging the plate 12 prevent rotation of the spindle 16. An annular rib 23 bears against the sprocket.
Patent GB-955674-A (GB)
Title: Improvements in or relating to shock proof mountings for a mass within a supporting structure
Inventor: SHERMAN RALPH
IPC: B65D81/07
Filed: 1960-06-16
Abstract: 955,674. Resilient supports, e.g. for containers. MICROCELL Ltd. Sept. 15, 1961 [June 16, 1960], No. 21269/60. Heading F2S. [Also in Division B8] A shock-proof mounting for a mass within a supporting structure comprises at least three double-acting shock absorbers having three degrees of freedom of clamped movement, the axes of which are mutually at right angles, the shock absorbers being articulately connected between the mass and the surrounding structure. Fig. 2 shows the simplest arrangement in which three identical double-acting shock absorbers X, Y, Z are symmetrically disposed, mutually at right angles and radially from a spherical body to the centres of the corresponding mutually perpendicular sides A, B, C, D; A, D, E, H; and D, C, F, E of a rectangular supporting structure A-H. Any of the shock absorbers could be replaced by a number of double-acting shock absorbers having the same resultant line of resistance. As shown in Fig. 1, in order to save space, twelve double-acting shock absorbers are employed to support, within a rectangular supporting structure 8, a rectangular packing case 9 between the corners 11, 22, 16, 19 and 24, 33, 26, 38 of the end faces of which and the respective corners 13, 21, 15, 18 and 30, 34, 28, 37 of the corresponding ends of the supporting structure 9 are connected double-acting shock absorbers 10, 20, 14, 17 and 35, 32, 31, 36 respectively which, with four more double-acting shock absorbers 25, 27, 23, 29 connected respectively between the corners 22, 26, 19, 24 of the ease 9 and the corners 28, 21, 30, 18 of the supporting structure 8, extend approximately in the planes of the case 9. In an alternative arrangement, Fig. 3 (not shown), six obliquely-arranged double-acting shock absorbers are connected between certain of the corners of the supporting structure 8 and the ease 9 there being no shock absorbers extending from one pair of diagonally-opposed corners of the supporting structure and the corresponding adjacent corners of the packing case. In a further modification, Fig. 4 (not shown), six double-acting shock absorbers extend from the centres of the faces of the packing case to certain of the corners of the supporting structure. Specification 948,822 is referred to.
Patent GB-614653-A (GB)
Title: Improvements in and relating to agricultural tractors
IPC: A01B63/02
Filed: 1946-07-16
Abstract: 614,653. Vehicle couplings. FORD MOTOR CO., Ltd., and SAMPSON, J. July 16, 1946, No. 21283. [Class 103 (v)] A tractor has a draw-bar mechanism for trailing implements adjustable vertically to one of a number of fixed positions f<SP>1</SP> and if desired horizontally, in combination with linkage k, i for carried implements. The link i has an anchorage l<SP>2</SP> on the draw-bar frame member a and is associated with a power lift arm h in such a manner that the carried implement may be raised or lowered independently from the draw-bar mechanism. The anchorage l<SP>2</SP> is adjustable vertically to position l<SP>1</SP> to maintain correct working depth according as the tractor is fitted with steel wheels or pneumatic tyres.
Patent GB-854347-A (GB)
Title: Difficultly inflammable styrene polymer compositions and their production
Inventor: MUELLER-TAMM HEINZ
IPC: C08K5/521
Filed: 1958-07-03
Abstract: A difficulty inflammable composition comprises a styrene polymer and a acetal or an ether of 2,3-di bromopropanol-1 which may be added before or after polymerization.  Polymers specified are polystyrene and copolymers of styrene with substituted styrenes, divinyl benzene, acrylonitrile, acrylic or methacrylic acid esters, vinyl esters, and vinyl carbazole.  Polymerization may be in bulk, solution, emulsion or aqueous suspension and is preferably effected with a peroxide or azo compound as catalyst. Expanded products may be obtained by the incorporation of a blowing agent in the monomer or the resulting polymer. Applications specified are as insulating materials against heat and sound.ALSO:Difficulty inflammable, expandable compositions comprise styrene polymers, acetals or ethers of 2,3-dibromopropanol-1 and blowing agents.  The ingredients being added before or after polymerization.  Polymers specified are polystyrene and copolymers of styrene with substituted styrenes, divinylbenzene, acrylonitrile, acrylic or methacrylic acid esters, vinyl esters, and vinyl carbazole.  Blowing agents disclosed are petroleum ether, pentane, hexane, cyclopentane, cylcohexane, propane, butane, and difluorodichloromethane.  Expansion may be effected by boiling water. The products obtained find application as insulation against heat and sound.
Patent GB-151453-A (GB)
Title: Improvements in cape cart hoods for use on motor vehicles
IPC: B60J1/20
Filed: 1919-08-30
Abstract: 151,453. Maudslay, R. W., and Standard Motor Co. Aug. 30, 1919. Hoods.-Relates to cape-cart hoods for motor vehicles, such as are described in Specification 7524/11, and consists of an improved sliding attachment for the lower fore corner of the curtain door. A block D is mounted on the body door A to engage the slot C on the curtain door B, the block having a lip D<2> which engages the face around the slot. The block is elongated and may be grooved above and below.
Patent GB-409653-A (GB)
Title: Improvements in or relating to installations for transmitting carrier waves along supply networks
IPC: H04B3/54
Filed: 1932-07-29
Abstract: 409,653. Wired wireless signalling. NAAMLOOZE VENNOOTSCHAP PHILIPS' GLOEILAMPENFABRIEKEN, 13D, Emmasingel, Eindhoven, Holland. July 29, 1932, No. 21450. Void [Abridged as open to inspection under Sect. 91 of the Acts, Sept. 6, 1932]. [Class 40 (v).] Modulated carrier waves are transmitted over supply networks, the modulation depth being substantially greater than that which occurs due to disturbing currents.
Patent GB-1425676-A (GB)
Title: Hydraulic boost mechanism
IPC: B60T13/18
Filed: 1974-05-16
Abstract: 1425676 Hydraulic boosters BENDIX CORP 16 May 1974 [13 June 1973] 21767/74 Heading F2F A hydraulic boost mechanism comprises a housing 16 having a bore 32 communicating with an inlet 18 and an outlet 20 and receiving a piston 34 to define therewith a boost chamber 36, the piston being shiftable from a first position to a second position and having a central passage 78 therein communicating the inlet with the boost chamber. A hydraulic fluid by-pass means 60 responsive to the position of the piston is disposed in the bore 32 for varying the effective area of the passage between the inlet to the outlet between predetermined smaller and greater values but maintaining continuous fluid communication between the inlet and the outlet. A control valve 84 connected to an operator-actuated linkage and slidably and co-axially arranged in the central passage 78 of the piston controls fluid communication between the inlet and boost chamber for shifting the piston, and resilient means, i.e. a spring 106, acts on the control valve and piston to urge the valve to a position for cutting off communication between the inlet and boost chamber. As shown, fluid from a steering pump 12 passes through the inlet 18, between a shoulder 76 on the piston 34 and a land 62 of the housing 16 constituting the by-pass means 60, and through the outlet 20 to a steering gear 14; the pressure drop across the by-pass means is determined by the gap A between the shoulder and the land. In the de-actuated position shown, the boost-chamber 36 communicates, via a diametral passage 102 in the rod 86, a central passage 100 in the valve 84, a recess 90 and a passage 94 in the piston, and an exhaust chamber 38 with an exhaust port 22. Upon actuation of the pedal 82, valve 84 closes such communication via the recess 90 and allows communication between the boost chamber 36 and the inlet 18 via a recess 92 and a passage 96 in the piston. Initial piston movement is under low inlet pressure and is not opposed by an output rod biasing spring 56 since lost motion is taken up by a shoulder 110 of the piston moving to engage a seat 105 retaining the output rod 46. The spring 106 provides the initial lost motion separation of the seat and piston. When the lost motion is taken up, the shoulder 76 and land 62 are closer together providing a greater inlet pressure and therefore a greater boost chamber pressure for piston and rod power movement.
Patent GB-1505835-A (GB)
Title: Electric motors
IPC: H02K19/14
Filed: 1975-07-21
Abstract: 1505835 Reluctance motors NATIONAL RESEARCH DEVELOPMENT CORP 21 July 1975 [16 May 1974] 21849/74 Heading H2A The rotor 10 of a planar air gap disc type reluctance motor comprises a non-magnetic backing plate, e.g. an annular channel 1, with two spaced portions of magnetic material 2 thereon for each pole pair of the stator 7 of the motor; the portions 2 are surrounded by conductive material 5, 18, 19 in which currents are induced during asynchronous starting conditions. Recesses 3 in the portions 2 are also filled with the conductive material.
Patent GB-637677-A (GB)
Title: Improvements in laminated lenses and similar objects
IPC: G02C7/02
Filed: 1947-08-08
Abstract: A polyvinyl acetal, plasticized with castor oil and containing hydroquinone as a deoxidant is used as an adhesive for laminating a sheet polarizer, comprising a cellulosic material having oriented dichroic crystals embedded therein, between sheets of glass or plastic material.
Patent GB-1091827-A (GB)
Title: Improvements in control devices for the fuel/air mixture in mixture compression fuelinjection engines
IPC: F02D9/00
Filed: 1966-05-17
Abstract: 1,091,827. Centrifugal governors. ROBERT BOSCH G.m.b.H.. May 17, 1966 [May 18, 1965], No.21869/66. Heading G3B. [Also in Division F1] In a fuel injection pump control device a control cam-face 14', Fig.1, is rotatable in dependence on the position of a throttle valve 16a, follower 10 is mounted on a centrifugal governor sleeve 6 and a lever 19 transmits movements of the feeler to the pump control member 20. Operation. With speed increase sleeve 6 is displaced to the right against spring 8 and resultant movement of follower 10 is transmitted to lever 20 via pin and slot 17, 18 and a lever pivoted at 22. The position of pivot 22 is moved in accordance with temperature changes via rod 24. In another embodiment Fig. 2 (not shown) the follower movements are transmitted by lever (19a) to a double-armed shift lever (26) and thence to fuel control rod (25). The pivot of the doublearmed lever (26) is moved in accordance with ambient pressure changes and the pivot (22) of lever (19a) is moved in accordance with temperature changes.
Patent GB-168496-A (GB)
Title: An improved saturated air blast system for reheating, boiler, and other furnaces or the like
IPC: F23L1/02
Filed: 1920-07-21
Abstract: 168,496. Priest, C. F. July 21, 1920. Air supply, heating and moistening; fire-bars and grates.-Air from a fan a is supplied to the ash-pit through a pipe d built into the wall of the fire-box and through hollow grate-bars j. Water is delivered into the pipe d from a supply pipe p through a siphon pipe q, and is vaporized therein and combined with the air to form a saturated air-blast. The saturated air is delivered to a hollow box h supporting one end of the hollow fire-bars, and passes through them to the ash-pit. A secondary supply of air may be taken from the main c and passed through passages v in the fire-box wall, being delivered through apertures x above the fire.
Patent GB-876999-A (GB)
Title: Improvements in or relating to lifeboat, dinghy or like craft
Inventor: BOTTCHER HANS
IPC: B63C9/02
Filed: 1958-07-09
Abstract: 876,999. Craft with integral buoyancy tanks. SCHIFFSWERFT RECHLIN VEB. July 9, 1958, No. 21968 /58. Class 113. A lifeboat, dinghy or similar craft has buoyancy tanks 31 formed by transverse bulkheads 4-11 which are as high as the cross thwarts and which establish a junction between the keel 1, the outer skin 3, and the gunwales 2, the tanks being subdivided by two longitudinal bulkheads 12, the central tank having an elevated bottom plate 15, and shaft supports 17 for propeller drive arranged substantially parallel to the longitudinal bulkheads outside the buoyancy tanks formed by the transverse bulkheads. Apertures 16 in the transverse bulkheads allow passage of water and driving shafts.
Patent GB-793678-A (GB)
Title: Improvements in record controlled control systems
Filed: 1956-07-16
Abstract: 793,678. Statistical apparatus. SPERRY RAND CORPORATION. July 16, 1956 [July 21, 1955], No. 21978/56. Class 106 (1). Data indicating marks are provided on a record card in the form of spots 22, Fig. 1, each including particles of an unmagnetized magnetic material. The marks are applied in the apparatus shown in Fig. 1 which comprises a drum 10 having a magnetizable surface. The information is recorded on the drum surface in the form of magnetized spots by recording heads 11. Later in the rotation of the drum these spots are dusted in chamber 15 with an ink containing magnetic particles and the inked spots so formed are transferred to cards 16, 17, 18, &c. by pressure of rollers 20. The marks may be fixed to the card by a substance in the ink which melts or sets as it passes over heater 23. The marks may be sensed as shown in Fig. 2. The cards are passed on a drum 36 under a permanent magnet reading head. A coil 38 on this magnet forms one limb of a bridge which is balanced when no magnetic mark is positioned between the limbs of magnet 37 but which gives an output on line 44 when such a mark is present. Alternatively, the record card may be of translucent material, the marks being read by photo-electric means.