baber/WOPTO huggingface dataset:
Patent GB-143900-A (GB)
Title: Improvements in centrifugal machine unloaders
IPC: B04B11/08
Filed: 1920-05-28
Abstract: 143,900. Hepworth Co., S. S., and Mackintosh, E. M., (Assignees of Mackintosh, E. D.). Sept. 4, 1914, [Convention date]. Strainer separators; density separators.-Solids are discharged from the baskets of a centrifugal machine by a plough 11 carried on a non-rotataable bar 5 sliding vertically in an horizontal arm 3 supported on a spindle 2 mounted to turn in a fixed bearing 1. The bar 5 is raised and lowered between fixed stops 12, 13 by a rack and pinion operated by a winch handle 9, the plane of movement of which passes wholly to one side of the bearing 1. A stop 15 is provided to hold the plough in its position of rest as shown. A cam 19 urged by a spring 20 acts against a roller 18 carried by the arm 3 to press the plough outwardly against the basket while in action.
Patent GB-497551-A (GB)
Title: Improvements in or relating to cathode ray television transmitting tubes
IPC: H01J29/43
Filed: 1938-05-16
Abstract: 497,551. Cathode - ray tubes. MARCONI'S WIRELESS TELEGRAPH CO., Ltd. May 16, 1938, No. 14567. Convention date, May 15, 1937. [Class 39 (i)] The capacity of photo-electric elements 41 of a mosaic 20 in a television transmitting tube 23 with an electron multiplier 26, 27 is made small by having no back plate 22, Fig. 1 (not shown), or, if there is a back plate, using an insulating support 21 with a thickness at least of the order of 10 mils. The current in the electronic beam is reduced to a value at which further reduction impairs the transmission of pictures. The optimum current varies from about <1> /10 to <1> /60 microampere in inverse proportion to the thickness of the insulating sheet from 10 to 30 mils. The photo-electric elements are microscopic sensitized globules of silver.
Patent GB-1294620-A (GB)
Title: Holder for flat rectangular objects
IPC: B65D1/36
Filed: 1971-05-12
Abstract: 1294620 Trays MILES LABORATORIES Inc 12 May 1971 [12 May 1970] 14576/71 Heading B8P A moulded tray has abutments 44, 46 to engage the side and end walls of microscope slider arranged in spaced relationship on the base thereof, and recesses 54 to permit digital access to the ends of the slides.
Patent GB-820633-A (GB)
Title: Improvements in devices comprising displaceable plungers
Inventor: SEARLE GEORGE REX
IPC: H01H50/20
Filed: 1956-05-10
Abstract: 820,633. Electromagnetic switches. SMITH & SONS (ENGLAND) Ltd., S. May 7, 1957 [May 10, 1956], No. 14577/56. Class 38 (5). [Also in Group XXXV] A solenoid plunger 3, when attracted by a coil 1, displaces an auxiliary plunger 5, rotation of which is prevented by a pin 7 and groove 6. The threaded end of the plunger 5 carries a circular conducting-plate 10 and a nut 8, in aligned holes in which one end 12 of a helical spring 11 is secured, the other end engaging a spring strip 14 carrying a contact 17. To vary the axial position of the plunger 5, the spring 11 is disengaged from the spring strip 14 to allow the nut 8 to be rotated. The plate 10 bridges contacts 20 and 21 on the insulating base-plate 2, which contacts are the first to be opened when the plunger 3 is attracted.
Patent GB-357198-A (GB)
Title: Improvements relating to electric circuit breakers
IPC: H01H3/30
Filed: 1930-05-12
Abstract: 357,198. Automatic circuit-breakers. BRITISH THOMSON - HOUSTON CO., Ltd., Crown House, Aldwych, London, TRENCHAM, H., Oakthorpe, Kings End, Ruislip, and HEATH, H. C., 51, Kingsway, Wembley, both in Middlesex. May 12, 1930, No. 14579. [Class 38 (v).] The movable contact - member 16 is held in engagement with the fixed contact 10 by pressure of a spring 34 acting between the end 33 of an insulating rod 17 and a pin 32, through which the rod 17 passes. The pin 32 is pivoted to a lever 18 which is pivoted at 19 to the cover 15 and urged by a spring 20 in a counterclockwise direction, which force is resisted by a toggle 23, 24, 25, having pivots 27, 29. The contact 10 is pivoted at 37 (Fig. 2) to the insulator 12 and held in position by a fuse 44 which is anchored at 45, 46 and passes over the common pivot 43 of a toggle 39, 40. When the fuse ruptures, the toggle and contact move to the dotted position and the member 16 moves up a short distance until an arm 35 on the rod 17 breaks the toggle 23, 24, 25 and permits the member 16 to fall down and break circuit. To reset, the fuse is replaced, and the handle 30 rotated counterclockwise to reset the toggle links 23, 24. Clockwise rotation of the handle then closes the switch which is retained by the toggle becoming overset. In a modification, the contact 10 is held in place by a toggle which is tapped electromagnetically and automatically resets itself when the switch opens, Figs. 4 and 5 (not shown). In a further form, the movable contact-member is pivoted to the rod 17 and serves as a bridging member. The Specification also refers to the use of cartridge fuses.
Patent GB-475800-A (GB)
Title: A new or improved garter or leg-band
IPC: A41F11/16
Filed: 1936-05-23
Abstract: 475,800. Garters. BIRKETT, L. F. May 23, 1936, No. 14608. [Class 141] A garter or leg-band a of the kind provided on its upper edge with a plurality of upstanding tabs b for attachment to the suspender bands c of a corset, belt, or the like d, and of endless elastic form, is made of substantial width, and shaped in taper fashion to conform with the contour of the leg above the knee. British Specifications 314,707, [Class 141], and 420,321, and U.S.A. Specification 1,912,970 are referred to.
Patent GB-514856-A (GB)
Title: Improvements in or relating to the manufacture of footwear
IPC: A43B9/06
Filed: 1938-05-17
Abstract: 514,856. Boots &c. LOTUS, Ltd., and PERRY, E. S. May 17, 1938, No. 14715. [Class 17 (ii)] A shoe has a wel strip C of crepe rubber or other materia secured to the upper B and insole A by a sean D and then bent dowr and secured by adhesive to the edge of the crÛpe rubber outsole E which is attached to the insole A by adhesive. A leather bead strip G may be interposed between the welt strip and upper, and a reinforcing tape F is preferably provided on the welt strip so that the stitching D passes through it. In a modified construction, an intermediate sole of sponge rubber is inserted between the inner and outer soles. Reference has been directed by the Comptroller to Specifications 240,059 and 240,187, [both in Class 17 (ii)], 505,060, and U.S.A. Specification 2,046,444.
Patent GB-566560-A (GB)
Title: Pocket lighter
IPC: F23Q2/48
Filed: 1943-09-09
Abstract: 566,560. Pocket igniters. BURTON, J. L., and PERKINS, A. E. Sept. 9, 1943, No. 14801. [Class 75 (iii)] The friction wheel m of a pocket. igniter is rotated in contact with a spring- pressed flint q by thumb pressure on a plunger c against the resistance of a spring v, the plunger being provided with a projecting tooth t engaging a helical groove u cut in the spindle d carrying the wheel m. The friction wheel spindle may pass through the fuel container a and the. flint tube o arranged on the top of the fuel container or vice versa. The friction wheel may be loosely mounted on the spindle d and provided with ratchet teeth engaging ratchet teeth on a wheel secured to the spindle so that no movement of the friction wheel takes place on the return movement of the plunger.
Patent GB-1084640-A (GB)
Title: Surgical instrument
IPC: A61B10/00
Filed: 1966-04-04
Abstract: A surgical knife for the biopsy of the cervix of the uterus, comprises a handle to which is removably fitted at one or both ends a flat knife blade, the plane of each blade being at 30 degrees to the plane of the handle and each blade having a point at its distal end formed by side edges of the blade meeting at about 30 degrees.  The knife comprises either a handle having a blade at each end (Figures 1-6, not shown), only one side edge of each blade being sharpened, or the knife comprises a handle having a single blade which is diamond-shaped with both side edges sharpened, (Figures 7-9, not shown).
Patent GB-1093453-A (GB)
Title: Improvements in or relating to secondary oil recovery process
IPC: E21B43/20
Filed: 1965-04-07
Abstract: 1,093,453. Wells &c. CENTRAL OIL CO. April 7, 1965 [May 27, 1964], No. 14854/65. Heading E1F. A process of secondary recovery of oil from a partially depleted formation comprises the following steps: injecting water through an injection well into the formation after terminating production and after the formation pressure has increased producing from the formation through a production well in the absence of fluid being injected or produced through the injection well. The pressure gradient in the formation is allowed to stabilize prior to the injection and prior to production. The injection increases the pressure in the formation to approximately the original pressure of the formation, but the increased pressure is maintained below the fracturing pressure. The process may be repeated when the pressure in the formation is sufficiently reduced.
Patent GB-553442-A (GB)
Title: Improvements in and relating to the treatment of nylon fibres and fabrics
IPC: D06M13/152
Filed: 1941-11-19
Abstract: 553,442. Dialysts. BRITISH NYLON SPINNERS, Ltd., LOASBY, G., and JACKSON, D. L. C. Nov. 19, 1941, No. 14861. [Class 1 (i)] [Also in Group IV] Parchmentized fabrics which can be used for dialyzing purposes are obtained by treating nylon fabrics, including mixed fabrics, with a swelling agent comprising a solution of a phenolic substance under conditions of temperatures and concentration such that a substantial shrinkage in the length of the fibres occurs and that after removal of the swelling agent the density of the fibres remains substantially unaltered. The concentration of phenolic substance should be at least 2.5 per cent. and the temperature at least 25‹ C. though saturated solutions and temperatures of 100‹C. may be used. In one example, nylon fabric immersed for 3 minutes in a solution containing 15 grams of resorcinol in 100 grams of water at 70‹ C. acquired a parchmentized appearance and shrunk from 120 ends and picks per inch to 140 ends and picks per inch.
Patent GB-827191-A (GB)
Title: Improvements in illuminating devices for optical instruments
IPC: G03B21/20
Filed: 1956-05-14
Abstract: 827,191. Illuminating-devices. REICHERT OPTISCHE WERKE A.G., C. May 14, 1956 [May 16, 1955], No. 14888/56. Class 97(1)  An illuminating device for an optical instrument, such as a microscope, comprises a lamp, collecting lens and a diaphragm which is displaceable in a plane perpendicular to the optical axis by the instrument and is rotatable about at least two axes which intersect at or near the centre of the diaphragm. As shown, a lamp casing 1 supports a tube 3 accommodating a collecting lens and a diaphragm, this tube being rotatable about the axes 6, 7 of a carden joint which it itself displaceable longitudinally or vertically. Alternatively the tube may be connected to a ball and socket joint.
Patent GB-1490117-A (GB)
Title: Method and apparatus for producing ice
IPC: F25C1/04
Filed: 1975-04-11
Abstract: 1490117 Producing ice ARMALITE Inc 11 April 1975 14912/75 Heading F4H A method of producing ice in the form of blocks comprise the steps of freezing water in a mould S until an ice block has formed, heating the mould until the ice-to-mould interfaces are thawed, and refilling the mould with water thereby causing the ice block to float out of the mould. As shown in Fig. 1, the mould is heated or cooled by a mechanical refrigeration system incorporating a compressor 10, a condenser 11, an expansion valve 12, on evaporator 13 and a hot gas bypass 14 controlled by a valve 15. One or more moulds may be provided, each at an angle of 30 degrees to the vertical, the moulds being interconnected by the evaporator line 13. The system is controlled by a temperature sensor 19 and by a control switch 20. In operation of the method in a continuouslyoperating, automatic, ice cube making machine, valve 15 is closed by the control switch 20, in dependence upon the sensor 19 reaching 49‹ F; ice consequently forming in the moulds. At 29‹ F., the sensor 19 causes switch 20 to open valve 15 and the hot gas bypass line 14, causing the ice-to-mould interfaces to thaw. Simultaneously with the opening of the valve 15, pump 37 is energized to supply water through orifices 33 to float the blocks out of the moulds and to refill the moulds. When sensor 19 again detects 49‹ F., valve 15 is closed and the pump 37 de-energized. The ice blocks are forced from the moulds on to a screen 40 and are diverted into a storage bin B. The excess water is collected by a trough 41<SP>1</SP> having a drain 42<SP>1</SP> to a storage tank 43. The water can then be recycled utilizing the pump 37. A sensor 39 prevents ice from overflowing the brim of bin B.
Patent GB-476047-A (GB)
Title: Improvements relating to automatic slack adjusters for brakes
IPC: B61H15/00
Filed: 1936-05-27
Abstract: 476,047. Brakes. HEATLY-GRESHAM ENGINEERING CO., Ltd., and GRESHAM, J. N. May 27, 1936, No. 14946. [Class 103 (i)] In a slack-adjusting mechanism for vehicle &c. brakes an element, such as a nut g, on one of two relatively movable parts a, b, is adapted, as the limit of adjustment is being approached, to engage a cam e on the other part a and displace an indicator arm c to a position showing that renewal of the brake shoes is necessary. In the arrangement shown the arm c is mounted on a pivot d on the pull-rod a and provided with a counterweight f, while the cam is furnished with a shoulder e<1> which is engaged by the nut g, so as to maintain the arm c in its displaced position until the necessary re-adjustment is effected.
Patent GB-1164574-A (GB)
Title: Deflection Circuit for a Cathode Ray Tube
IPC: H03K4/83
Filed: 1968-03-28
Abstract: 1,164,574. EHT generators. INTERNATIONAL STANDARD ELECTRIC CORP. 28 March, 1968 [5 April, 1967], No. 15060/68. Heading H2F. [Also in Division H3] A deflection circuit for a cathode-ray tube comprising the series arrangement of a transistor 2 and thyristor 3, a constant voltage being applied to the gate of the thyristor 3, the circuit being controlled by pulses at the base of transistor 2. The constant voltage at the gate of thyristor 3 is such that in combination with the Zener voltage of the thyristor input, it is less than the maximum collectoremitter voltage of the transistor 2. A series effiiciency diode circuit or (as shown) a shunt efficiency diode circuit 6, 7 and EHT rectifier 11 is included.
Patent GB-679517-A (GB)
Title: Devices for connecting calls to certain subscriber's lines to operator's positions, in automatic telephone exchanges
IPC: H04Q3/00
Filed: 1950-06-16
Abstract: 679,517. Automatic exchange systems. TELEFONAKTIEBOLAGET L. M. ERICSSON. June 16, 1950 [June 17, 1949], No. 15114/50. Class 40 (iv). Lines, calls to which are to be connected to, e.g., an exchange attendant, are marked by connecting pairs of crossing conductors in a field of such conductors, the crossing points of which correspond to subscriber's lines, the field being associated with the marker which sets the final selectors serving the lines. A call from a line A is connected over a combined linefinder-final selector cross-bar switch arrangement SLA, SLB to a register sender REG which with the aid of a marker MG sets group selectors GVA, GVB to seize a link SNL. A contact device K connects up a marker ML which records the last three digits on the bars A1-B1, A2-B2, A3-B3 of a cross-bar switch by means of selecting magnets S1 ... S10. Operation of the operating magnets BM1 ... BM3 transfers the digits to the registering relays of a control register REA. Associated with the control register REA is the conductor field which is a jack board consisting of fifty horizontal and twenty vertical conductors, one horizontal and one vertical conductor being marked by the operated combination of the register relays TR1 ...TR4, SR1 ... SR5, RR1 ... RR4, UR1, UR2. If a jack P has been inserted in the marked crossing-point corresponding to the called subscriber's line, the conductors are electrically connected so that relay RR5 pulls up, followed by UR3, UR4. The marking applied by RR1 ... RR4 and UR1, UR2 is thereby applied to a register REB which tests the horizontal conductors so obtaining complete information of the last three digits. Meanwhile the marker ML connects the link SNL over selectors SLA, SLB to the called line B and N1 operates. Relay RRS also shunted the high resistance winding of UR1, so allowing a marginal relay MR1 to complete a circuit for N2 to disconnect the ringing current generator. The register REB selects an idle trunk F to the selectors SLB whereupon trunk equipment SNF seizes the marker ML which was released by N1 and connects negative battery over wire d to operate MR2. The digits are recorded in the marker ML which in view of MR2 being operated ignores the busy condition of line B and completes a connection thereto over selectors SLB, SLA. In response to the lighting of a lamp L the operator plugs in to the connection completed between her and the calling subscriber. In a modification suitable for use when it is known that a ringing signal to a marked line will not be answered, no provision is made for disconnecting the ringing generator, the ringing being terminated when the operator plugs in to the connection. In a further modification, the operation of relay MR1 causes the marker ML to set SLB, SLA to an outlet or to a PBX group of outlets leading to an operator's position.
Patent GB-700389-A (GB)
Title: Improvements in or relating to arc chutes in electric circuit interrupters
IPC: H01H9/34
Filed: 1951-06-26
Abstract: 700,389. Arc-rupturing in switches. ALLISCHALMERS MANUFACTURING CO. June 26, 1951 [Feb. 3, 1951], No. 15121/51. Class 38(5) In a switch, such as that of Specification 700,388, having an arc chute with a plurality of spaced slotted plates 25 having apertures 27 to provide auxiliary arc passages, the slots 26 in the plates are shaped so as to provide first portions which gradually restrict the cross-section of the arc to the size of the nearest apertures and second portions to retain the arcs restricted size as the arc moves up into the chute. As shown, the slot 26 in each plate 25 may have a V-shaped portion to constrict the arc and a second narrow parallel sided portion. Specifications 615,025, and 689,227 also are referred to.
Patent GB-435879-A (GB)
Title: Flexible mountings for aircraft power units
IPC: B64D27/04
Filed: 1934-05-22
Abstract: 435,879. Aircraft-engine supports. ARMSTRONG SIDDELEY MOTORS, Ltd., WYLIE, H. N., and GAY, A. R. B., Park Side, Coventry. May 22, 1934, No. 15241. [Class 4] [See also Group XXXI] A flexible mounting for a star-type aircraft engine comprises an annular support and a radial flange on the engine having parts which spigotally engage one another through resilient means, attachment bolts carried by the support, or by the flange, and extending through the other with clearance, and resilient means located on the support and on the flange to absorb the engine torque reaction chiefly in shear. As shown in Fig. 1, a flange 11 of an aircraft engine is secured to an annular box section 14, 15, 16 on the aircraft by bolts 18 and resilient pads of rubber &c. 24, 28. A collar 22 on each bolt secures to the flange 11 an L-shaped flange 20 and a plate 23 to which the pad 24 is vulcanized, an extension 27 of the pad forming a resilient spigot, adjoining backing plates 26, 29 may overlap and are secured to the box-section by bolts. In Fig. 6, the side 15b of the boxsection is extended to form a spigot 20<a> and the bolt 18<a> is rigidly connected through distance pieces 40, 37 with the box section. The flange 11<a> of the engine floats between the pad pieces 28<a>, 24<a> and bears on the extension 27<a> of the pad piece 24<a>. The pads 24 may comprise an annular ring and the pads 28 may be replaced by radial rollers.
Patent GB-629368-A (GB)
Title: Improvements in water cooling towers
IPC: F28C1/00
Filed: 1947-06-10
Abstract: 629,368. Cooling-towers. MOUCHEL & PARTNERS, Ltd., L. G., and GERARD, P. J. June 10, 1947, No. 15276. '[Class 64(i)] In a water cooling tower, adjustably directable nozzles d at the mouth or top of the tower c for directing air or other gas or vapour towards or away from the axis of the tower are supplied with non- saturated gas or vapour, e.g. from adjoining chimney shafts, by pipe means running up the shell. Specification 418,320 is referred to.
Patent GB-530444-A (GB)
Title: Powder puffs and method and apparatus for making the same
IPC: A45D33/34
Filed: 1939-05-23
Abstract: 530,444. Powder puffs. THOMPSON, R. E. May 23, 1939, No. 15282. [Class 131] [Also in Group VII] A powder puff comprises two discs 40, 41, Fig. 4, of velour or similar fabric, having their edges turned towards one another, and a filling of cotton 42, stitched around the outer edges at 44. A ribbon may also be stitched around the edge of the puff. Figs. 7 and 8 show means of feeding the puff in a sewing machine comprising a cup-like support 20 having an opening at 23 to provide space for the passage of a needle 35 and looper 36. Within the cup are plates 27, 24 between which the puff is held by pin 31 and to which an intermittent rotation is given by shafts 26, 28. A tongue 33 turns the edges of the fabric as they approach the needle and a pusher is provided at the inner end of a reciprocating rod 9 to force the filling inwards. A machine incorporating the puff feeding mechanism comprises a base A Figs. 14 and 15 to which is attached a bracket 55, carrying a vertical tubular shaft 52 within which is mounted a shaft 61 joumalled in the bracket 55. The shaft 58 carries upper and lower brackets 67 and 62. The bracket 62 carries the lower part 96 of the cup shaped support within which the puff is held, and within this is mounted a spring pressed plate 98 provided with holes through which pins 104 pass. The upper bracket 67 has journalled therein a shaft 117 carrying at its lower end a plate 105 within the upper part of the cup-like puff holding means. The plate is also perforated for the passage of puff engaging pin 104a. The shafts 99, 94 are given intermittent rotary movement by means of an eccentric 71 having a slot 72 engaging a pin 75 connected by a lever 77 having wall ends connected to a second lever 74, Fig. 22, which rocks a shaft 78 connected by links 79, 81 by a clutch 84 at the lower end of the shaft 61 which is connected by sprockets 85, 89 to the shafts 94, 99 respectively. The upper part 107 of the puff holder may be raised by a lever 108, preferably operated by a treadle engaging a groove 110. The puff holder is provided with an opening 137, Fig. 17, through which the needle 35 and looper 36 pass, a blade 141 being provided by which the edges of the fabric are turned over prior to sewing, a blade 144 being pressed by a spring 148 against the filling. To allow the insertion of the puff the cup-shaped support has doors 123, 124 hinged at 125 and 131 and operated by a handle 53 through links 134. When a puff is to be inserted the puff holder is turned away from the sewing needle by a sideways movement of the handle 53 about the axis of the shaft 61, opening of the holder being prevented until this is done by a catch 148 engaging the lever 108. The machine may be provided with a guide to feed ribbon or tape across the opening 137 so that it stitches around the edge of the puff.
Patent GB-783267-A (GB)
Title: Improvements in electro-magnetic driving devices operated by electric impulses
IPC: H02K7/065
Filed: 1951-06-28
Abstract: 783,267. Oscillating machines. ARON ELECTRICITY METER, Ltd., and RIORDAN, E. J. June 25, 1952 [June 28, 1951], No. 15403/51. Class 35. An oscillating motor has an armature with two sector-shaped arms 3, 4 which, when in the normal position, the poles 5, 5 of the arms 3, 4 abut the stator poles 1, 2, but when the stator coil 10 and the armature coil 9 are energized the stator and armature abutting poles are polarized in the same sense. This causes the armature to start its movement under repulsion, but the final position of its movement is under attraction. The device is fed with impulse current and the armature is returned by a spring. The oscillatory motion of the armature is converted into a step-by-step rotation by a ratchet-and-pawl or similar device.